/**
* @page Examples Examples
*
* Here is a page with Elementary examples.
*
* @ref bg_01_example_page
*
* @ref bg_02_example_page
*
* @ref bg_03_example_page
*
* @ref actionslider_example_page
*
* @ref elm_animator_example_page_01
*
* @ref transit_example_01_explained
*
* @ref transit_example_02_explained
*
* @ref general_functions_example_page
*
* @ref calendar_example_01
*
* @ref calendar_example_02
*
* @ref calendar_example_03
*
* @ref calendar_example_04
*
* @ref calendar_example_05
*
* @ref calendar_example_06
*
* @ref clock_example
* @ref diskselector_example_01
*
* @ref diskselector_example_02
*
* @ref flipselector_example
*
* @ref fileselector_example
*
* @ref fileselector_button_example
*
* @ref fileselector_entry_example
*
* @ref index_example_01
*
* @ref index_example_02
*/
/**
* @page bg_01_example_page elm_bg - Plain color background.
* @dontinclude bg_example_01.c
*
* The full code for this example can be found at @ref bg_example_01_c,
* in the function @c test_bg_plain. It's part of the @c elementar_test
* suite, and thus has the code for the three examples referenced by this
* documentation.
*
* This first example just sets a default background with a plain color. The
* first part consists of creating an Elementary window. It's the common
* piece of code that you'll see everywhere in Elementary: @skip elm_main
* @until autodel_set
*
* Now we really create our background object, using the window object as
* its parent:
*
* @skipline bg_add
*
* Then we set the size hints of the background object so that it will use
* all space available for it, and then add it as a resize object to the
* window, making it visible in the end:
*
* @skip size_hint_weight_set
* @until resize_object_add
*
* See @ref evas_object_size_hint_weight_set and elm_win_resize_object_add()
* for more detailed info about these functions.
*
* The end of the example is quite simple, just setting the minimum and
* maximum size of the background, so the Elementary window knows that it
* has to have at least the minimum size. The background also won't scale to
* a size above its maximum. Then we resize the window and show it in the
* end:
*
* @skip set size hints
* @until }
*
* And here we finish our very simple background object usage example.
*/
/**
* @page bg_02_example_page elm_bg - Image background.
* @dontinclude bg_example_02.c
*
* The full code for this example can be found at @ref bg_example_02_c,
* in the function @c test_bg_image. It's part of the @c elementar_test
* suite, and thus has the code for the three examples referenced by this
* documentation.
*
* This is the second example, and shows how to use the Elementary
* background object to set an image as background of your application.
*
* We start this example exactly in the same way as the previous one, even
* when creating the background object:
*
* @skip elm_main
* @until bg_add
*
* Now it's the different part.
*
* Our background will have an image, that will be displayed over the
* background color. Before loading the image, we set the load size of the
* image. The load size is a hint about the size that we want the image
* displayed in the screen. It's not the exact size that the image will have,
* but usually a bit bigger. The background object can still be scaled to a
* size bigger than the one set here. Setting the image load size to
* something smaller than its real size will reduce the memory used to keep
* the pixmap representation of the image, and the time to load it. Here we
* set the load size to 20x20 pixels, but the image is loaded with a size
* bigger than that (since it's just a hint):
*
* @skipline load_size_set
*
* And set our background image to be centered, instead of stretched or
* scaled, so the effect of the elm_bg_load_size_set() can be easily
* understood:
*
* @skipline option_set
*
* We need a filename to set, so we get one from the previous installed
* images in the @c PACKAGE_DATA_DIR, and write its full path to a buffer.
* Then we use this buffer to set the filename in the background object:
*
* @skip snprintf
* @until bg_file_set
*
* Notice that the third argument of the elm_bg_file_set() function is @c
* NULL, since we are setting an image to this background. This function
* also supports setting an edje group as background, in which case the @c
* group parameter wouldn't be @c NULL, but be the name of the group
* instead.
*
* Finally, we can set the size hints, add the background as a resize
* object, and resize the window, exactly the same thing we do in the @ref
* bg_01_example_page example:
*
* @skip size_hint
* @until }
*
* And this is the end of this example.
*
* This example will look like this:
*
* @image html screenshots/bg_01.png
* @image latex screenshots/bg_01.eps width=\textwidth
*/
/**
* @page bg_03_example_page elm_bg - Background properties.
* @dontinclude bg_example_03.c
*
* The full code for this example can be found at @ref bg_example_03_c, in the
* function @c test_bg_options, with the callbacks @c _cb_overlay_changed, @c
* _cb_color_changed and @c _cb_radio_changed defined in the beginning of the
* file. It's part of the @c elementar_test suite, and thus has the code for
* the three examples referenced by this documentation.
*
* This example will show the properties available for the background object,
* and will use of some more widgets to set them.
*
* In order to do this, we will set some callbacks for these widgets. The
* first is for the radio buttons that will be used to choose the option
* passed as argument to elm_bg_option_set():
*
* @skip _cb_radio_changed
* @until }
*
* The next callback will be used when setting the overlay (using
* elm_bg_overlay_set()):
*
* @skip _cb_overlay_changed
* @until }
* @until }
*
* And the last one, used to set the color (with elm_bg_color_set()):
*
* @skip _cb_color_changed
* @until }
*
* We will get back to what these functions do soon. If you want to know more
* about how to set these callbacks and what these widgets are, look for:
* @li elm_radio_add()
* @li elm_check_add()
* @li elm_spinner_add()
*
* Now going to the main function, @c test_bg_options, we have the common
* code with the other examples:
*
* @skip bg-options
* @until autodel_set
*
* We add a plain background to this window, so it will have the default
* background color behind everything:
*
* @skip bg = elm_bg_add
* @until evas_object_show(bg)
*
* Then we add a vertical box (elm_box_add()) that will hold the background
* object that we are going to play with, as well as a horizontal box that
* will hold widgets:
*
* @skip elm_box_add
* @until evas_object_show
*
* Now we add the background object that is going to be of use for our
* example. It is an image background, as used in @ref bg_02_example_page ,
* so the code should be familiar:
*
* @skip elm_bg_add
* @until evas_object_show
*
* Notice the call to elm_box_pack_end(): it will pack the background object
* in the end of the Elementary box declared above. Just refer to that
* documentation for more info.
*
* Since this Elementary background is already an image background, we are
* going to play with its other properties. We will change its option
* (CENTER, SCALE, STRETCH, TILE), its color (RGB), and add an overlay to it.
* For all of these properties, we are going to add widgets that will
* configure them.
*
* First, lets add the horizontal box that will hold these widgets:
* @skip hbox
* @until align_set
*
* For now, just consider this @c hbox as a rectangle that will contain the
* widgets, and will distribute them horizontally inside its content. Then we
* add radio buttons that will allow us to choose the property to use with
* this background:
*
* @skip radio_add
* @until evas_object_show
*
* Again, I won't give details about the use of these widgets, just look for
* their documentation if necessary. It's enough to know for now that we are
* packing them in the @c hbox, setting a label for them, and the most
* important parts: setting its value to @c ELM_BG_OPTION_CENTER and its
* callback to @c _cb_radio_changed (the function defined in the beginning of
* this example). We do this for the next 3 radio buttons added after this
* one, each of them with a different value.
*
* Now taking a look at the code of the callback @c _cb_radio_changed again,
* it will call elm_bg_option_set() with the value set from the checked radio
* button, thus setting the option for this background. The background is
* passed as argument to the @p data parameter of this callback, and is
* referenced here as @c o_bg.
*
* Later we set the default value for this radio button:
*
* @skipline elm_radio_value_set
*
* Then we add a checkbox for the elm_bg_overlay_set() function:
*
* @skip check_add
* @until evas_object_show
*
* Now look at the code of the @c _cb_overlay_changed again. If the checkbox
* state is checked, an overlay will be added to the background. It's done by
* creating an Edje object, and setting it with elm_bg_overlay_set() to the
* background object. For information about what are and how to set Edje
* object, look at the Edje documentation.
*
* Finally we add a spinner object (elm_spinner_add()) to be used to select
* the color of our background. In its callback it's possible to see the call
* to elm_bg_color_set(), which will change the color of this background.
* This color is used by the background to fill areas where the image doesn't
* cover (in this case, where we have an image background). The spinner is
* also packed into the @c hbox :
*
* @skip elm_spinner_add
* @until evas_object_show
*
* Then we just have to pack the @c hbox inside the @c box, set some size
* hints, and show our window:
*
* @skip pack_end
* @until }
*
* Now to see this code in action, open elementary_test, and go to the "Bg
* Options" test. It should demonstrate what was implemented here.
*/
/**
* @page actionslider_example_page Actionslider usage
* @dontinclude actionslider_example_01.c
*
* For this example we are going to assume knowledge of evas smart callbacks
* and some basic evas object functions. Elementary is not meant to be used
* without evas, if you're not yet familiar with evas it probably is worth
* checking that out.
*
* And now to the example, when using Elementary we start by including
* Elementary.h:
* @skipline #include
*
* Next we define some callbacks, they all share the same signature because
* they are all to be used with evas_object_smart_callback_add().
* The first one just prints the selected label(in two different ways):
* @until }
*
* This next callback is a little more interesting, it makes the selected
* label magnetic(except if it's the center label):
* @until }
*
* This callback enables or disables the magnetic propertty of the center
* label:
* @until }
*
* And finally a callback to stop the main loop when the window is closed:
* @until }
*
* To be able to create our actionsliders we need to do some setup, but this
* isn't really relevant here, so if you want to know about that go @ref
* Win "here".
*
* With all that boring stuff out of the way we can proceed to creating some
* actionsliders.@n
* All actionsliders are created the same way:
* @skipline actionslider_add
* Next we must choose where the indicator starts, and for this one we choose
* the right, and set the right as magnetic:
* @skipline indicator_pos_set
* @until magnet_pos_set
*
* We then set the labels for the left and right, passing NULL as an argument
* to any of the labels makes that position have no label.
* @until Stop
*
* Furthermore we mark both left and right as enabled positions, if we didn't
* do this all three positions would be enabled:
* @until RIGHT
*
* Having the the enabled positions we now add a smart callback to change
* which position is magnetic, so that only the last selected position is
* magnetic:
* @until NULL
*
* And finally we set our printing callback and show the actionslider:
* @until object_show
* @skip pack_end
*
* For our next actionslider we are going to do much as we did for the
* previous except we are going to have the center as the magnet(and not
* change it):
* @skipline actionslider_add
* @skipline indicator_pos_set
* @until object_show
*
* And another actionslider, in this one the indicator starts on the left.
* It has labels only in the center and right, and both bositions are
* magnetic. Because the left doesn't have a label and is not magnetic once
* the indicator leaves it can't return:
* @skipline actionslider_add
* @skipline indicator_pos_set
* @until object_show
* @note The greyed out area is a @ref Styles "style".
*
* And now an actionslider with a label in the indicator, and whose magnet
* properties change based on what was last selected:
* @skipline actionslider_add
* @skipline indicator_pos_set
* @until object_show
* @note The greyed out area is a @ref Styles "style".
*
* We are almost done, this next one is just an actionslider with all
* positions magnetized and having every possible label:
* @skipline actionslider_add
* @skipline indicator_pos_set
* @until object_show
*
* And for our last actionslider we have one that turns the magnetic property
* on and off:
* @skipline actionslider_add
* @skipline indicator_pos_set
* @until object_show
*
* The example will look like this:
*
* @image html screenshots/actionslider_01.png
* @image latex screenshots/actionslider_01.eps width=\textwidth
*
* See the full source code @ref actionslider_example_01 "here"
*/
/**
* @page elm_animator_example_page_01 Animator usage
* @dontinclude animator_example_01.c
*
* For this example we will be using a bit of evas, you could animate a
* elementary widget in much the same way, but to keep things simple we use
* an evas_object_rectangle.
*
* As every other example we start with our include and a simple callback to
* exit the app when the window is closed:
* @skipline #include
* @until }
*
* This next callback is the one that actually creates our animation, it
* changes the size, position and color of a rectangle given to it in @a
* data:
* @until }
*
* Next we have a callback that prints a string, nothing special:
* @until }
*
* This next callback is a little more interesting, it has a state variable
* to know if the animation is currently paused or running, and it toogles
* the state of the animation accordingly:
* @until }
* @until }
* @until }
*
* Finally we have a callback to stop the animation:
* @until }
*
* As with every example we need to do a bit of setup before we can actually
* use an animation, but for the purposes of this example that's not relevant
* so let's just skip to the good stuff, creating an animator:
* @skipline animator_add
* @note Since elm_animator is not a widget we can give it a NULL parent.
*
* Now that we have an elm_animator we set it's duration to 1 second:
* @line duration_set
*
* We would also like our animation to be reversible, so:
* @line reverse_set
*
* We also set our animation to repeat as many times as possible, which will
* mean that _end_cb will only be called after UINT_MAX * 2 seconds(UINT_MAX
* for the animation running forward and UNIT_MAX for the animation running
* backwards):
* @line repeat_set
*
* To add some fun to our animation we will use the IN_OUT curve style:
* @line curve_style
*
* To actually animate anything we need an operation callback:
* @line operation_callback
*
* Even though we set our animation to repeat for a very long time we are
* going to set a end callback to it:
* @line completion_callback
* @note Notice that stoping the animation with the stop button will not make
* _end_cb be called.
*
* Now that we have fully set up our animator we can tell it to start
* animating:
* @line animate
*
* There's a bit more of code that doesn't really matter to use so we skip
* right down to our last interesting point:
* @skipline animator_del
* @note Because we created our animator with no parent we need to delete it
* ourselves.
*
* The example should look like this:
*
* @image html screenshots/animator_example_01.png
* @image latex screenshots/animator_example_01.eps width=\textwidth
* @n
* @image html screenshots/animator_example_02.png
* @image latex screenshots/animator_example_02.eps width=\textwidth
* @n
* @image html screenshots/animator_example_03.png
* @image latex screenshots/animator_example_03.eps width=\textwidth
*
* The full source code for this example can be found @ref
* animator_example_01_c "here"
*/
/**
* @page transit_example_03_c elm_transit - Combined effects and options.
*
* This example shows how to apply the following transition effects:
* @li translation
* @li color
* @li rotation
* @li wipe
* @li zoom
* @li resizing
*
* It allows you to apply more than one effect at once, and also allows to
* set properties like event_enabled, auto_reverse, repeat_times and
* tween_mode.
*
* @include transit_example_03.c
*/
/**
* @page transit_example_04_c elm_transit - Combined effects over two objects.
*
* This example shows how to apply the transition effects:
* @li flip
* @li resizable_flip
* @li fade
* @li blend
* over two objects. This kind of transition effect is used to make one
* object disappear and another one appear on its place.
*
* You can mix more than one effect of this type on the same objects, and the
* transition will apply both.
*
* @include transit_example_04.c
*/
/**
* @page transit_example_01_explained elm_transit - Basic transit usage.
* @dontinclude transit_example_01.c
*
* The full code for this example can be found at @ref transit_example_01_c.
*
* This example shows the simplest way of creating a transition and applying
* it to an object. Similarly to every other elementary example, we create a
* window, set its title, size, autodel property, and setup a callback to
* exit the program when finished:
*
* @skip on_done
* @until evas_object_resize
*
* We also add a resizeable white background to use behind our animation:
*
* @skip bg_add
* @until evas_object_show
*
* And then we add a button that we will use to demonstrate the effects of
* our animation:
*
* @skip button_add
* @until evas_object_show(win)
*
* Notice that we are not adding the button with elm_win_resize_object_add()
* because we don't want the window to control the size of the button. We
* will use the transition to change the button size, so it could conflict
* with something else trying to control that size.
*
* Now, the simplest code possible to create the resize animation:
*
* @skip transit_add
* @until transit_go
*
* As you can see, this code is very easy to understand. First, we create the
* transition itself with elm_transit_add(). Then we add the button to this
* transition with elm_transit_object_add(), which means that the transition
* will operate over this button. The effect that we want now is changing the
* object size from 100x50 to 300x150, and can be achieved by adding the
* resize effect with elm_transit_effect_resizing_add().
*
* Finally, we set the transition time to 5 seconds and start the transition
* with elm_transit_go(). If we wanted more effects applied to this
* button, we could add them to the same transition. See the
* @ref transit_example_03_c to watch many transitions being applied to an
* object.
*/
/**
* @page transit_example_02_explained elm_transit - Chained transitions.
* @dontinclude transit_example_02.c
*
* The full code for this example can be found at @ref transit_example_02_c.
*
* This example shows how to implement a chain of transitions. This chain is
* used to start a transition just after another transition ended. Similarly
* to every other elementary example, we create a window, set its title,
* size, autodel property, and setup a callback to exit the program when
* finished:
*
* @skip on_done
* @until evas_object_resize
*
* We also add a resizeable white background to use behind our animation:
*
* @skip bg_add
* @until evas_object_show
*
* This example will have a chain of 4 transitions, each of them applied to
* one button. Thus we create 4 different buttons:
*
* @skip button_add
* @until evas_object_show(bt4)
*
* Now we create a simple translation transition that will be started as soon
* as the program loads. It will be our first transition, and the other
* transitions will be started just after this transition ends:
*
* @skip transit_add
* @until transit_go
*
* The code displayed until now has nothing different from what you have
* already seen in @ref transit_example_01_explained, but now comes the new
* part: instead of creating a second transition that will start later using
* a timer, we create the it normally, and use
* elm_transit_chain_transit_add() instead of elm_transit_go. Since we are
* adding it in a chain after the first transition, it will start as soon as
* the first transition ends:
*
* @skip transit_add
* @until transit_chain_transit_add
*
* Finally we add the 2 other transitions to the chain, and run our program.
* It will make one transition start after the other finish, and there is the
* transition chain.
*/
/**
* @page general_functions_example_page General (top-level) functions example
* @dontinclude general_funcs_example.c
*
* As told in their documentation blocks, the
* elm_app_compile_*_dir_set() family of functions have to be called
* before elm_app_info_set():
* @skip tell elm about
* @until elm_app_info_set
*
* We are here setting the fallback paths to the compiling time target
* paths, naturally. If you're building the example out of the
* project's build system, we're assuming they are the canonical ones.
*
* After the program starts, elm_app_info_set() will actually run and
* then you'll see an intrincasy: Elementary does the prefix lookup @b
* twice. This is so because of the quicklaunch infrastructure in
* Elementary (@ref Start), which will register a predefined prefix
* for possible users of the launch schema. We're not hooking into a
* quick launch, so this first call can't be avoided.
*
* If you ran this example from your "bindir" installation
* directiory, no output will emerge from these both attempts -- it
* will find the "magic" file there registered and set the prefixes
* silently. Otherwise, you could get something like:
@verbatim
WARNING: Could not determine its installed prefix for 'ELM'
so am falling back on the compiled in default:
usr
implied by the following:
bindir = usr/lib
libdir = usr/lib
datadir = usr/share/elementary
localedir = usr/share/locale
Try setting the following environment variables:
ELM_PREFIX - points to the base prefix of install
or the next 4 variables
ELM_BIN_DIR - provide a specific binary directory
ELM_LIB_DIR - provide a specific library directory
ELM_DATA_DIR - provide a specific data directory
ELM_LOCALE_DIR - provide a specific locale directory
@endverbatim
* if you also didn't change those environment variables (remember
* they are also a valid way of communicating your prefix to the
* binary) - this is the scenario where it fallbacks to the paths set
* for compile time.
*
* Then, you can check the prefixes set on the standard output:
* @skip prefix was set to
* @until locale directory is
*
* In the fragment
* @skip by using this policy
* @until elm_win_autodel_set
* we demonstrate the use of Elementary policies. The policy defining
* under which circunstances our application should quit automatically
* is set to when its last window is closed (this one has just one
* window, though). This will save us from having to set a callback
* ourselves on the window, like done in @ref bg_example_01_c "this"
* example. Note that we need to tell the window to delete itself's
* object on a request to destroy the canvas coming, with
* elm_win_autodel_set().
*
* What follows is some boilerplate code, creating a frame with a @b
* button, our object of interest, and, below, widgets to change the
* button's behavior and exemplify the group of functions in question.
*
* @dontinclude general_funcs_example.c
* We enabled the focus highlight object for this window, so that you
* can keep track of the current focused object better:
* @skip elm_win_focus_highlight_enabled_set
* @until evas_object_show
* Use the tab key to navigate through the focus chain.
*
* @dontinclude general_funcs_example.c
* While creating the button, we exemplify how to use Elementary's
* finger size information to scale our UI:
* @skip fprintf(stdout, "Elementary
* @until evas_object_show
*
* @dontinclude general_funcs_example.c
* The first checkbox's callback is:
* @skip static void
* @until }
* When unsetting the checkbox, we disable the button, which will get a new
* decoration (greyed out) and stop receiving events. The focus chain
* will also ignore it.
*
* Following, there are 2 more buttons whose actions are focus/unfocus
* the top button, respectively:
* @skip focus callback
* @until }
* and
* @skip unfocus callback
* @until }
* Note the situations in which they won't take effect:
* - the button is not allowed to get focus or
* - the button is disabled
*
* The first restriction above you'll get by a second checkbox, whose
* callback is:
* @skip focus allow callback
* @until }
* Note that the button will still get mouse events, though.
*
* Next, there's a slider controlling the button's scale:
* @skip scaling callback
* @until }
*
* Experiment with it, so you understand the effect better. If you
* change its value, it will mess with the button's original size,
* naturally.
*
* The full code for this example can be found
* @ref general_functions_example_c "here".
*/
/**
* @page theme_example_01 Theme - Using extensions
*
* @dontinclude theme_example_01.c
*
* Using extensions is extremely easy, discarding the part where you have to
* write the theme for them.
*
* In the following example we'll be creating two buttons, one to load or
* unload our extension theme and one to cycle around three possible styles,
* one of which we created.
*
* After including our one and only header we'll jump to the callback for
* the buttons. First one takes care of loading or unloading our extension
* file, relative to the default theme set (thus the @c NULL in the
* functions first parameter).
* @skipline Elementary.h
* @skip static void
* @until }
* @until }
* @until }
*
* The second button, as we said before, will just switch around different
* styles. In this case we have three of them. The first one is our custom
* style, named after something very unlikely to find in the default theme.
* The other two styles are the standard and one more, anchor, which exists
* in the default and is similar to the default, except the button vanishes
* when the mouse is not over it.
* @skip static void
* @until }
* @until }
*
* So what happens if the style switches to our custom one when the
* extension is loaded? Elementary falls back to the default for the
* widget.
*
* And the main function, simply enough, will create the window, set the
* buttons and their callbacks, and just to begin with our button styled
* we're also loading our extension at the beginning.
* @skip int
* @until ELM_MAIN
*
* In this case we wanted to easily remove extensions, but all adding an
* extension does is tell Elementary where else it should look for themes
* when it can't find them in the default theme. Another way to do this
* is to set the theme search order using elm_theme_set(), but this requires
* that the developer is careful not to override any user configuration.
* That can be helped by adding our theme to the end of whatver is already
* set, like in the following snippet.
* @code
* char buf[4096];
* snprintf(buf, sizeof(buf), "%s:./theme_example.edj", elme_theme_get(NULL);
* elm_theme_set(NULL, buf);
* @endcode
*
* If we were using overlays instead of extensions, the same thing applies,
* but the custom theme must be added to the front of the search path.
*
* In the end, we should be looking at something like this:
*
* @image html screenshots/theme_example_01.png
* @image latex screenshots/theme_example_01.eps width=\textwidth
*
* That's all. Boringly simple, and the full code in one piece can be found
* @ref theme_example_01.c "here".
*
* And the code for our extension is @ref theme_example.edc "here".
*
* @example theme_example_01.c
* @example theme_example.edc
*/
/**
* @page theme_example_02 Theme - Using overlays
*
* @dontinclude theme_example_02.c
*
* Overlays are like extensions in that you tell Elementary that some other
* theme contains the styles you need for your program. The difference is that
* they will be look in first, so they can override the default style of any
* widget.
*
* There's not much to say about them that hasn't been said in our previous
* example about @ref theme_example_01 "extensions", so going quickly through
* the code we have a function to load or unload the theme, which will be
* called when we click any button.
* @skipline Elementary.h
* @skip static void
* @until }
*
* And the main function, creating the window and adding some buttons to it.
* We load our theme as an overlay and nothing else. Notice there's no style
* set for any button there, which means they should be using the default
* that we override.
* @skip int
* @until ELM_MAIN
*
* That's pretty much it. The full code is @ref theme_example_02.c "here" and
* the definition of the theme is the same as before, and can be found in
* @ref theme_example.edc "here".
*
* @example theme_example_02.c
*/
/**
* @page button_example_01 Button - Complete example
*
* @dontinclude button_example_01.c
*
* A button is simple, you click on it and something happens. That said,
* we'll go through an example to show in detail the button API less
* commonly used.
*
* In the end, we'll be presented with something that looks like this:
*
* @image html screenshots/button_01.png
* @image latex screenshots/button_01.eps width=\textwidth
*
* The full code of the example is @ref button_example_01.c "here" and we
* will follow here with a rundown of it.
*
* @skip Elementary.h
* @until Elementary.h
* @skip struct
* @until App_Data
*
* We have several buttons to set different times for the autorepeat timeouts
* of the buttons that use it and a few more that we keep track of in our
* data struct. The mid button doesn't do much, just moves around according
* to what other buttons the user presses. Then four more buttons to move the
* central one, and we're also keeping track of the icon set in the middle
* button, since when this one moves, we change the icon, and when movement
* is finished (by releasing one of the four arrow buttons), we set back the
* normal icon.
* @skip static void
* @until }
*
* Keeping any of those four buttons pressed will trigger their autorepeat
* callback, where we move the button doing some size hint magic. To
* understand how that works better, refer to the @ref Box documentation.
* Also, the first time the function is called, we change the icon in the
* middle button, using elm_button_icon_unset() first to keep the reference
* to the previous one, so we don't need to recreate it when we are done
* moving it.
* @skip static void
* @until }
* @until size_hint_align_set
* @until }
*
* One more callback for the option buttons, that just sets the timeouts for
* the different autorepeat options.
*
* @skip static void
* @until }
* @until }
* @until }
*
* And the main function, which does some setting up of the buttons in boxes
* to make things work. Here we'll go through some snippets only.
*
* For the option buttons, it's just the button with its label and callback.
* @skip elm_button_add
* @until smart_callback_add
*
* For the ones that move the central button, we have no labels. There are
* icons instead, and the autorepeat option is toggled.
* @skip Gap: 1.0
* @skip elm_button_add
* @until data.cursors.up
*
* And just to show the mid button, which doesn't have anything special.
* @skip data.cursors.left
* @skip elm_button_add
* @until data.mid
*
* And we are done.
*
* @example button_example_01.c
*/
/**
* @page bubble_01_example_page elm_bubble - Simple use.
* @dontinclude bubble_example_01.c
*
* This example shows a bubble with all fields set(label, info, content and
* icon) and the selected corner changing when the bubble is clicked. To be
* able use a bubble we need to do some setup and create a window, for this
* example we are going to ignore that part of the code since it isn't
* relevant to the bubble.
*
* To have the selected corner change in a clockwise motion we are going to
* use the following callback:
* @skip static
* @until }
* @until }
*
* Here we are creating an elm_label that is going to be used as the content
* for our bubble:
* @skipline elm_label
* @until show
* @note You could use any evas_object for this, we are using an elm_label
* for simplicity.
*
* Despite it's name the bubble's icon doesn't have to be an icon, it can be
* any evas_object. For this example we are going to make the icon a simple
* blue rectangle:
* @until show
*
* And finally we have the actual bubble creation and the setting of it's
* label, info and content:
* @until content
* @skipline show
* @note Because we didn't set a corner, the default("top_left") will be
* used.
*
* Now that we have our bubble all that is left is connecting the "clicked"
* signals to our callback:
* @line smart_callback
*
* This last bubble we created was very complete, so it's pertinent to show
* that most of that stuff is optional a bubble can be created with nothing
* but content:
* @until content
* @skipline show
*
* Our example will look like this:
*
* @image html screenshots/bubble_example_01.png
* @image latex screenshots/bubble_example_01.eps width=\textwidth
*
* See the full source code @ref bubble_example_01.c here.
* @example bubble_example_01.c
*/
/**
* @page box_example_01 Box - Basic API
*
* @dontinclude button_example_01.c
*
* As a special guest tonight, we have the @ref button_example_01 "simple
* button example". There are plenty of boxes in it, and to make the cursor
* buttons that moved a central one around when pressed, we had to use a
* variety of values for their hints.
*
* To start, let's take a look at the handling of the central button when
* we were moving it around. To achieve this effect without falling back to
* a complete manual positioning of the @c Evas_Object in our canvas, we just
* put it in a box and played with its alignment within it, as seen in the
* following snippet of the callback for the pressed buttons.
* @skip evas_object_size_hint_align_get
* @until evas_object_size_hint_align_set
*
* Not much to it. We get the current alignment of the object and change it
* by just a little, depending on which button was pressed, then set it
* again, making sure we stay within the 0.0-1.0 range so the button moves
* inside the space it has, instead of disappearing under the other objects.
*
* But as useful as an example as that may have been, the usual case with boxes
* is to set everything at the moment they are created, like we did for
* everything else in our main function.
*
* The entire layout of our program is made with boxes. We have one set as the
* resize object for the window, which means it will always be resized with
* the window. The weight hints set to @c EVAS_HINT_EXPAND will tell the
* window that the box can grow past it's minimum size, which allows resizing
* of it.
* @skip elm_main
* @skip elm_box_add
* @until evas_object_show
*
* Two more boxes, set to horizontal, hold the buttons to change the autorepeat
* configuration used by the buttons. We create each to take over all the
* available space horizontally, but we don't want them to grow vertically,
* so we keep that axis of the weight with 0.0. Then it gets packed in the
* main box.
* @skip box2
* @until evas_object_show
*
* The buttons in each of those boxes have nothing special, they are just packed
* in with their default values and the box will use their minimum size, as set
* by Elementary itself based on the label, icon, finger size and theme.
*
* But the buttons used to move the central one have a special disposition.
* The top one first, is placed right into the main box like our other smaller
* boxes. Set to expand horizontally and not vertically, and in this case we
* also tell it to fill that space, so it gets resized to take the entire
* width of the window.
* @skip Gap: 1.0
* @skip elm_button_add
* @until evas_object_show
*
* The bottom one will be the same, but for the other two we need to use a
* second box set to take as much space as we have, so we can place our side
* buttons in place and have the big empty space where the central button will
* move.
* @skip elm_box_add
* @until evas_object_show
*
* Then the buttons will have their hints inverted to the other top and bottom
* ones, to expand and fill vertically and keep their minimum size horizontally.
* @skip elm_button_add
* @until evas_object_show
*
* The central button takes every thing else. It will ask to be expanded in
* both directions, but without filling its cell. Changing its alignment by
* pressing the buttons will make it move around.
* @skip elm_button_add
* @until evas_object_show
*
* To end, the rightmost button is packed in the smaller box after the central
* one, and back to the main box we have the bottom button at the end.
*/
/**
* @page box_example_02 Box - Layout transitions
*
* @dontinclude box_example_02.c
*
* Setting a customized layout for a box is simple once you have the layout
* function, which is just like the layout function for @c Evas_Box. The new
* and fancier thing we can do with Elementary is animate the transition from
* one layout to the next. We'll see now how to do that through a simple
* example, while also taking a look at some of the API that was left
* untouched in our @ref box_example_01 "previous example".
*
* @image html screenshots/box_example_02.png
* @image latex screenshots/box_example_02.eps width=\textwidth
*
* @skipline Elementary.h
*
* Our application data consists of a list of layout functions, given by
* @c transitions. We'll be animating through them throughout the entire run.
* The box with the stuff to move around and the last layout that was set to
* make things easier in the code.
* @skip typedef
* @until Transitions_Data
*
* The box starts with three buttons, clicking on any of them will take it
* out of the box without deleting the object. There are also two more buttons
* outside, one to add an object to the box and the other to clear it.
* This is all to show how you can interact with the items in the box, add
* things and even remove them, while the transitions occur.
*
* One of the callback we'll be using creates a new button, asks the box for
* the list of its children and if it's not empty, we add the new object after
* the first one, otherwise just place at the end as it will not make any
* difference.
* @skip static void
* @until }
* @until }
*
* The clear button is even simpler. Everything in the box will be deleted,
* leaving it empty and ready to fill it up with more stuff.
* @skip static void
* @until }
*
* And a little function to remove buttons from the box without deleting them.
* This one is set for the @c clicked callback of the original buttons,
* unpacking them when clicked and placing it somewhere in the screen where
* they will not disturb. Once we do this, the box no longer has any control
* of it, so it will be left untouched until the program ends.
* @skip static void
* @until }
*
* If we wanted, we could just call @c evas_object_del() on the object to
* destroy it. In this case, no unpack is really necessary, as the box would
* be notified of a child being deleted and adjust its calculations accordingly.
*
* The core of the program is the following function. It takes whatever
* function is first on our list of layouts and together with the
* @c last_layout, it creates an ::Elm_Box_Transition to use with
* elm_box_layout_transition(). In here, we tell it to start from whatever
* layout we last set, end with the one that was at the top of the list and
* when everything is finished, call us back so we can create another
* transition. Finally, move the new layout to the end of the list so we
* can continue running through them until the program ends.
* @skip static void
* @until }
*
* The main function doesn't have antyhing special. Creation of box, initial
* buttons and some callback setting. The only part worth mentioning is the
* initialization of our application data.
* @skip tdata.box
* @until evas_object_box_layout_stack
*
* We have a simple static variable, set the box, the first layout we are
* using as last and create the list with the different functions to go
* through.
*
* And in the end, we set the first layout and call the same function we went
* through before to start the run of transitions.
* @until _test_box_transition_change
*
* For the full code, follow @ref box_example_02.c "here".
*
* @example box_example_02.c
*/
/**
* @page calendar_example_01 Calendar - Simple creation.
* @dontinclude calendar_example_01.c
*
* As a first example, let's just display a calendar in our window,
* explaining all steps required to do so.
*
* First you should declare objects we intend to use:
* @skipline Evas_Object
*
* Then a window is created, a title is set and its set to be autodeleted.
* More details can be found on windows examples:
* @until elm_win_autodel
*
* Next a simple background is placed on our windows. More details on
* @ref bg_01_example_page:
* @until evas_object_show(bg)
*
* Now, the exciting part, let's add the calendar with elm_calendar_add(),
* passing our window object as parent.
* @until evas_object_show(cal);
*
* To conclude our example, we should show the window and run elm mainloop:
* @until ELM_MAIN
*
* Our example will look like this:
*
* @image html screenshots/calendar_example_01.png
* @image latex screenshots/calendar_example_01.eps width=\textwidth
*
* See the full source code @ref calendar_example_01.c here.
* @example calendar_example_01.c
*/
/**
* @page calendar_example_02 Calendar - Layout strings formatting.
* @dontinclude calendar_example_02.c
*
* In this simple example, we'll explain how to format the label displaying
* month and year, and also set weekday names.
*
* To format month and year label, we need to create a callback function
* to create a string given the selected time, declared under a
* struct tm .
*
* struct tm , declared on @c time.h, is a structure composed by
* nine integers:
* @li tm_sec seconds [0,59]
* @li tm_min minutes [0,59]
* @li tm_hour hour [0,23]
* @li tm_mday day of month [1,31]
* @li tm_mon month of year [0,11]
* @li tm_year years since 1900
* @li tm_wday day of week [0,6] (Sunday = 0)
* @li tm_yday day of year [0,365]
* @li tm_isdst daylight savings flag
* @note glib version has 2 additional fields.
*
* For our function, only stuff that matters are tm_mon and tm_year.
* But we don't need to access it directly, since there are nice functions
* to format date and time, as @c strftime.
* We will get abbreviated month (%b) and year (%y) (check strftime manpage
* for more) in our example:
* @skipline static char
* @until }
*
* We need to alloc the string to be returned, and calendar widget will
* free it when it's not needed, what is done by @c strdup.
* So let's register our callback to calendar object:
* @skipline elm_calendar_format_function_set
*
* To set weekday names, we should declare them as an array of strings:
* @dontinclude calendar_example_02.c
* @skipline weekdays
* @until }
*
* And finally set them to calendar:
* skipline weekdays_names_set
*
* Our example will look like this:
*
* @image html screenshots/calendar_example_02.png
* @image latex screenshots/calendar_example_02.eps width=\textwidth
*
* See the full source code @ref calendar_example_02.c here.
* @example calendar_example_02.c
*/
/**
* @page calendar_example_03 Calendar - Years restrictions.
* @dontinclude calendar_example_03.c
*
* This example explains how to set max and min year to be displayed
* by a calendar object. This means that user won't be able to
* see or select a date before and after selected years.
* By default, limits are 1902 and maximun value will depends
* on platform architecture (year 2037 for 32 bits); You can
* read more about time functions on @c ctime manpage.
*
* Straigh to the point, to set it is enough to call
* elm_calendar_min_max_year_set(). First value is minimun year, second
* is maximum. If first value is negative, it won't apply limit for min
* year, if the second one is negative, won't apply for max year.
* Setting both to negative value will clear limits (default state):
* @skipline elm_calendar_min_max_year_set
*
* Our example will look like this:
*
* @image html screenshots/calendar_example_03.png
* @image latex screenshots/calendar_example_03.eps width=\textwidth
*
* See the full source code @ref calendar_example_03.c here.
* @example calendar_example_03.c
*/
/**
* @page calendar_example_04 Calendar - Days selection.
* @dontinclude calendar_example_04.c
*
* It's possible to disable date selection and to select a date
* from your program, and that's what we'll see on this example.
*
* If isn't required that users could select a day on calendar,
* only interacting going through months, disabling days selection
* could be a good idea to avoid confusion. For that:
* @skipline elm_calendar_day_selection_enabled_set
*
* Also, regarding days selection, you could be interested to set a
* date to be highlighted on calendar from your code, maybe when
* a specific event happens, or after calendar creation. Let's select
* two days from current day:
* @dontinclude calendar_example_04.c
* @skipline SECS_DAY
* @skipline current_time
* @until elm_calendar_selected_time_set
*
* Our example will look like this:
*
* @image html screenshots/calendar_example_04.png
* @image latex screenshots/calendar_example_04.eps width=\textwidth
*
* See the full source code @ref calendar_example_04.c here.
* @example calendar_example_04.c
*/
/**
* @page calendar_example_05 Calendar - Signal callback and getters.
* @dontinclude calendar_example_05.c
*
* Most of setters explained on previous examples have associated getters.
* That's the subject of this example. We'll add a callback to display
* all calendar information every time user interacts with the calendar.
*
* Let's check our callback function:
* @skipline static void
* @until double interval;
*
* To get selected day, we need to call elm_calendar_selected_time_get(),
* but to assure nothing wrong happened, we must check for function return.
* It'll return @c EINA_FALSE if fail. Otherwise we can use time set to
* our structure @p stime.
* @skipline elm_calendar_selected_time_get
* @until return
*
* Next we'll get information from calendar and place on declared vars:
* @skipline interval
* @until elm_calendar_weekdays_names_get
*
* The only tricky part is that last line gets an array of strings
* (char arrays), one for each weekday.
*
* Then we can simple print that to stdin:
* @skipline printf
* @until }
*
* struct tm is declared on @c time.h. You can check @c ctime
* manpage to read about it.
*
* To register this callback, that will be called every time user selects
* a day or goes to next or previous month, just add a callback for signal
* @b changed.
* @skipline evas_object_smart_callback_add
*
* Our example will look like this:
*
* @image html screenshots/calendar_example_05.png
* @image latex screenshots/calendar_example_05.eps width=\textwidth
*
* See the full source code @ref calendar_example_05.c here.
* @example calendar_example_05.c
*/
/**
* @page calendar_example_06 Calendar - Calendar marks.
* @dontinclude calendar_example_06.c
*
* On this example marks management will be explained. Functions
* elm_calendar_mark_add(), elm_calendar_mark_del() and
* elm_calendar_marks_clear() will be covered.
*
* To add a mark, will be required to choose three things:
* @li mark style
* @li mark date, or start date if it will be repeated
* @li mark periodicity
*
* Style defines the kind of mark will be displayed over marked day,
* on caledar. Default theme supports @b holiday and @b checked.
* If more is required, is possible to set a new theme to calendar
* widget using elm_object_style_set(), and use
* the signal that will be used by such marks.
*
* Date is a struct tm , as defined by @c time.h. More can
* be read on @c ctime manpage.
* If a date relative from current is required, this struct can be set
* as:
* @skipline current_time
* @until localtime_r
*
* Or if it's an absolute date, you can just declare the struct like:
* @dontinclude calendar_example_06.c
* @skipline sunday
* @until christmas.tm_mon
*
* Periodicity is how frequently the mark will be displayed over the
* calendar. Can be a unique mark (that don't repeat), or it can repeat
* daily, weekly, monthly or annually. It's enumerated by
* @c Elm_Calendar_Mark_Repeat.
*
* So let's add some marks to our calendar. We will add christmas holiday,
* set Sundays as holidays, and check current day and day after that.
* @dontinclude calendar_example_06.c
* @skipline sunday
* @until christmas.tm_mon
* @skipline current_time
* @until ELM_CALENDAR_WEEKLY
*
* We kept the return of first mark add, because we don't really won't it
* to be checked, so let's remove it:
* @skipline elm_calendar_mark_del
*
* After all marks are added and removed, is required to draw them:
* @skipline elm_calendar_marks_draw
*
* Finally, to clear all marks, let's set a callback for our button:
* @skipline elm_button_add
* @until evas_object_show(bt);
*
* This callback will receive our calendar object, and should clear it:
* @dontinclude calendar_example_06.c
* @skipline static
* @until }
* @note Remember to draw marks after clear the calendar.
*
* Our example will look like this:
*
* @image html screenshots/calendar_example_06.png
* @image latex screenshots/calendar_example_06.eps width=\textwidth
*
* See the full source code @ref calendar_example_06.c here.
* @example calendar_example_06.c
*/
/**
* @page clock_example Clock widget example
*
* This code places five Elementary clock widgets on a window, each of
* them exemplifying a part of the widget's API.
*
* The first of them is the pristine clock:
* @dontinclude clock_example.c
* @skip pristine
* @until evas_object_show
* As you see, the defaults for a clock are:
* - military time
* - no seconds shown
*
* For am/pm time, see the second clock:
* @dontinclude clock_example.c
* @skip am/pm
* @until evas_object_show
*
* The third one will show the seconds digits, which will flip in
* synchrony with system time. Note, besides, that the time itself is
* @b different from the system's -- it was customly set with
* elm_clock_time_set():
* @dontinclude clock_example.c
* @skip with seconds
* @until evas_object_show
*
* In both fourth and fifth ones, we turn on the edition
* mode. See how you can change each of the sheets on it, and be
* sure to try holding the mouse pressed over one of the sheet
* arrows. The forth one also starts with a custom time set:
* @dontinclude clock_example.c
* @skip in edition
* @until evas_object_show
*
* The fifth, besides editable, has only the time @b units editable,
* for hours, minutes and seconds. This exemplifies
* elm_clock_digit_edit_set():
* @dontinclude clock_example.c
* @skip but only
* @until evas_object_show
*
* See the full @ref clock_example.c "example", whose window should
* look like this picture:
*
* @image html screenshots/clock_example.png
* @image latex screenshots/clock_example.eps width=\textwidth
*
* See the full @ref clock_example_c "source code" for this example.
*
* @example clock_example.c
*/
/**
* @page diskselector_example_01 Diskselector widget example
*
* This code places 4 Elementary diskselector widgets on a window, each of
* them exemplifying a part of the widget's API.
*
* All of them will have weekdays as items, since we won't focus
* on items management on this example. For an example about this subject,
* check @ref diskselector_example_02.
*
* The first of them is a default diskselector.
* @dontinclude diskselector_example_01.c
* @skipline lbl
* @until }
* @skipline elm_diskselector_add
* @until evas_object_show
*
* We are just adding the diskselector, so as you can see, defaults for it are:
* @li Only 3 items visible each time.
* @li Only 3 characters are displayed for labels on side positions.
* @li The first added item remains centeres, i.e., it's the selected item.
*
* To add items, we are just appending it on a loop, using function
* elm_diskselector_item_append(), that will be better exaplained on
* items management example.
*
* For a circular diskselector, check the second widget. A circular
* diskselector will display first item after last, and last previous to
* the first one. So, as you can see, @b Sa will appears on left side
* of selected @b Sunday. This property is set with
* elm_diskselector_round_set().
*
* Also, we decide to display only 2 character for side labels, instead of 3.
* For this we call elm_diskselector_side_label_length_set(). As result,
* we'll see @b Mo displayed instead of @b Mon, when @b Monday is on a
* side position.
*
* @skipline elm_diskselector_add
* @until evas_object_show
*
* But so far, we are only displaying 3 items at once. If more are wanted,
* is enough to call elm_diskselector_display_item_num_set(), as you can
* see here:
* @skipline elm_diskselector_add
* @until evas_object_show
*
* @note You can't set less than 3 items to be displayed.
*
* Finally, if a bounce effect is required, or you would like to see
* scrollbars, it is possible. But, for default theme, diskselector
* scrollbars will be invisible anyway.
* @skipline elm_diskselector_add
* @until evas_object_show
*
* See the full @ref diskselector_example_01.c "diskselector_example_01.c"
* code, whose window should look like this picture:
*
* @image html screenshots/diskselector_example_01.png
* @image latex screenshots/diskselector_example_01.eps width=\textwidth
*
* @example diskselector_example_01.c
*/
/**
* @page diskselector_example_02 Diskselector - Items management
*
* This code places a Elementary diskselector widgets on a window,
* along with some buttons trigerring actions on it (though its API).
* It covers most of Elm_Diskselector_Item functions.
*
* On our @c main function, we are adding a default diskselector with
* 3 items. We are only setting their labels (second parameter of function
* elm_diskselector_item_append):
* @dontinclude diskselector_example_02.c
* @skipline elm_diskselector_add
* @until Item 2
*
* Next we are adding lots of buttons, each one for a callback function
* that will realize a task covering part of diskselector items API.
* Lets check the first one:
* @skipline elm_button_add
* @until evas_object_show
*
* We are labeling the button with a task description with
* elm_object_text_set() and setting a callback
* function evas_object_smart_callback_add().
* Each callback function will have the signature:
* static void _task_cb(void *data, Evas_Object *obj,
* void *event_info) with the function name varying for each task.
*
* Now let's cover all of them.
*
* Appending an item:
* @dontinclude diskselector_example_02.c
* @skipline _add_cb
* @until }
*
* All items are included on diskselector after last one. You @b can't
* preprend items.
*
* The first parameter of elm_diskselector_item_append() is the diskselector
* object, that we are receiving as data on our callback function.
* The second one is a label, the string that will be placed in the center
* of our item. As we don't wan't icons or callback functions, we can
* send NULL as third, fourth and fifth parameters.
*
* Appending an item with icon:
* @dontinclude diskselector_example_02.c
* @skipline _add_ic_cb
* @until }
*
* If an icon is required, you can pass it as third paramenter on our
* elm_diskselector_item_append() function. It will be place on the
* left side of item's label, that will be shifted to right a bit.
*
* For more details about how to create icons, look for elm_icon examples.
*
* Appending an item with callback function for selected:
* @dontinclude diskselector_example_02.c
* @skipline _sel_cb
* @until }
* @until }
*
* To set a callback function that will be called every time an item is
* selected, i.e., everytime the diskselector stops with this item in
* center position, just pass the function as fourth paramenter.
*
* Appending an item with callback function for selected with data:
* @dontinclude diskselector_example_02.c
* @skipline _sel_data_cb
* @until }
* @until }
* @until }
* @until }
*
* If the callback function request an extra data, it can be attached to our
* item passing a pointer for data as fifth parameter.
* Our function _sel_data_cb will receive it as void *data .
*
* If you want to free this data, or handle that the way you need when the
* item is deleted, set a callback function for that, with
* elm_diskselector_item_del_cb_set().
*
* As you can see we check if @c it is not @c NULL after appending it.
* If an error happens, we won't try to set a function for it.
*
* Deleting an item:
* @dontinclude diskselector_example_02.c
* @skip _del_cb
* @skipline _del_cb
* @until }
*
* To delete an item we simple need to call elm_diskselector_item_del() with
* a pointer for such item.
*
* If you need, you can get selected item with
* elm_diskselector_selected_item_get(), that will return a pointer for it.
*
* Unselecting an item:
* @dontinclude diskselector_example_02.c
* @skipline _unselect_cb
* @until }
*
* To select an item, you should call elm_diskselector_item_selected_set()
* passing @c EINA_TRUE, and to unselect it, @c EINA_FALSE.
*
* If you unselect the selected item, diskselector will automatically select
* the first item.
*
* Printing all items:
* @dontinclude diskselector_example_02.c
* @skipline _print_cb
* @until }
*
* Clearing the diskselector:
* @dontinclude diskselector_example_02.c
* @skipline _clear_cb
* @until }
*
* Selecting the first item:
* @dontinclude diskselector_example_02.c
* @skipline _select_first_cb
* @until }
*
* Selecting the last item:
* @dontinclude diskselector_example_02.c
* @skipline _select_last_cb
* @until }
*
* Selecting the next item:
* @dontinclude diskselector_example_02.c
* @skipline _select_next_cb
* @until }
*
* Selecting the previous item:
* @dontinclude diskselector_example_02.c
* @skipline _select_prev_cb
* @until }
*
* See the full @ref diskselector_example_02.c "diskselector_example_02.c"
* code, whose window should look like this picture:
*
* @image html screenshots/diskselector_example_02.png
* @image latex screenshots/diskselector_example_02.eps width=\textwidth
*
* @example diskselector_example_02.c
*/
/**
* @page flipselector_example Flip selector widget example
*
* This code places an Elementary flip selector widget on a window,
* along with two buttons trigerring actions on it (though its API).
*
* The selector is being populated with the following items:
* @dontinclude flipselector_example.c
* @skip lbl[]
* @until ;
*
* Next, we create it, populating it with those items and registering
* two (smart) callbacks on it:
* @dontinclude flipselector_example.c
* @skip fp = elm_flipselector_add
* @until object_show
*
* Those two callbacks will take place whenever one of those smart
* events occur, and they will just print something to @c stdout:
* @dontinclude flipselector_example.c
* @skip underflow callback
* @until static void
* Flip the sheets on the widget while looking at the items list, in
* the source code, and you'll get the idea of those events.
*
* The two buttons below the flip selector will take the actions
* described in their labels:
* @dontinclude flipselector_example.c
* @skip bt = elm_button_add
* @until callback_add(win
*
* @dontinclude flipselector_example.c
* @skip unselect the item
* @until underflow
*
* Click on them to exercise those flip selector API calls. To
* interact with the other parts of this API, there's a command line
* interface, whose help string can be asked for with the 'h' key:
* @dontinclude flipselector_example.c
* @skip commands
* @until ;
*
* The 'n' and 'p' keys will exemplify elm_flipselector_flip_next()
* and elm_flipselector_flip_prev(), respectively. 'f' and 'l' account
* for elm_flipselector_first_item_get() and
* elm_flipselector_last_item_get(), respectively. Finally, 's' will
* issue elm_flipselector_selected_item_get() on our example flip
* selector widget.
*
* See the full @ref flipselector_example.c "example", whose window should
* look like this picture:
*
* @image html screenshots/flipselector_example.png
* @image latex screenshots/flipselector_example.eps width=\textwidth
*
* See the full @ref flipselector_example_c "source code" for this example.
*
* @example flipselector_example.c
*/
/**
* @page fileselector_example File selector widget example
*
* This code places two Elementary file selector widgets on a window.
* The one on the left is layouting file system items in a @b list,
* while the the other is layouting them in a @b grid.
*
* The one having the majority of hooks of interest is on the left,
* which we create as follows:
* @dontinclude fileselector_example.c
* @skip first file selector
* @until object_show
*
* Note that we enable custom edition of file/directory selection, via
* the text entry it has on its bottom, via
* elm_fileselector_is_save_set(). It starts with the list view, which
* is the default, and we make it not expandable in place
* (elm_fileselector_expandable_set()), so that it replaces its view's
* contents with the current directory's entries each time one
* navigates to a different folder. For both of file selectors we are
* starting to list the contents found in the @c "/tmp" directory
* (elm_fileselector_path_set()).
*
* Note the code setting it to "grid mode" and observe the differences
* in the file selector's views, in the example. We also hide the
* second file selector's Ok/Cancel buttons -- since it's there just
* to show the grid view (and navigation) -- via
* elm_fileselector_buttons_ok_cancel_set().
*
* The @c "done" event, which triggers the callback below
* @dontinclude fileselector_example.c
* @skip 'done' cb
* @until }
* will be called at the time one clicks the "Ok"/"Cancel" buttons of
* the file selector (on the left). Note that it will print the path
* to the current selection, if any.
*
* The @c "selected" event, which triggers the callback below
* @dontinclude fileselector_example.c
* @skip bt = 'selected' cb
* @until }
* takes place when one selects a file (if the file selector is @b not
* under folders-only mode) or when one selects a folder (when in
* folders-only mode). Experiment it by selecting different file
* system entries.
*
* What comes next is the code creating the three check boxes and two
* buttons below the file selector in the right. They will exercise a
* bunch of functions on the file selector's API, for the instance on
* the left. Experiment with them, specially the buttons, to get the
* difference between elm_fileselector_path_get() and
* elm_fileselector_selected_get().
*
* Finally, there's the code adding the second file selector, on the
* right:
* @dontinclude fileselector_example.c
* @skip second file selector
* @until object_show
*
* Pay attention to the code setting it to "grid mode" and observe the
* differences in the file selector's views, in the example. We also
* hide the second file selector's Ok/Cancel buttons -- since it's
* there just to show the grid view (and navigation) -- via
* elm_fileselector_buttons_ok_cancel_set().
*
* See the full @ref fileselector_example.c "example", whose window
* should look like this picture:
*
* @image html screenshots/fileselector_example.png
* @image latex screenshots/fileselector_example.eps width=\textwidth
*
* See the full @ref fileselector_example_c "source code" for this example.
*
* @example fileselector_example.c
*/
/**
* @page fileselector_button_example File selector button widget example
*
* This code places an Elementary file selector button widget on a
* window, along with some other checkboxes and a text entry. Those
* are there just as knobs on the file selector button's state and to
* display information from it.
*
* Here's how we instantiate it:
* @dontinclude fileselector_button_example.c
* @skip ic = elm_icon_add
* @until evas_object_show
*
* Note that we set on it both icon and label decorations. It's set to
* list the contents of the @c "/tmp" directory, too, with
* elm_fileselector_button_path_set(). What follows are checkboxes to
* exercise some of its API funtions:
* @dontinclude fileselector_button_example.c
* @skip ck = elm_check_add
* @until evas_object_show(en)
*
* The checkboxes will toggle whether the file selector button's
* internal file selector:
* - must have an editable text entry for file names (thus, be in
* "save dialog mode")
* - is to be raised as an "inner window" (note it's the default
* behavior) or as a dedicated window
* - is to populate its view with folders only
* - is to expand its folders, in its view, in place, and not
* repainting it entirely just with the contents of a sole
* directory.
*
* The entry labeled @c "Last selection" will exercise the @c
* "file,chosen" smart event coming from the file selector button:
* @dontinclude fileselector_button_example.c
* @skip hook on the
* @until toggle inwin
*
* Whenever you dismiss or acknowledges the file selector, after it's
* raised, the @c event_info string will contain the last selection on
* it (if any was made).
*
* This is how the example, just after called, should look like:
*
* @image html screenshots/fileselector_button_example_00.png
* @image latex screenshots/fileselector_button_example_00.eps width=\textwidth
*
* Click on the file selector button to raise its internal file
* selector, which will be contained on an "inner window":
*
* @image html screenshots/fileselector_button_example_01.png
* @image latex screenshots/fileselector_button_example_01.eps width=\textwidth
*
* Toggle the "inwin mode" switch off and, if you click on the file
* selector button again, you'll get @b two windows, the original one
* (note the last selection there!)
*
* @image html screenshots/fileselector_button_example_02.png
* @image latex screenshots/fileselector_button_example_02.eps width=\textwidth
*
* and the file selector's new one
*
* @image html screenshots/fileselector_button_example_03.png
* @image latex screenshots/fileselector_button_example_03.eps width=\textwidth
*
* Play with the checkboxes to get the behavior changes on the file
* selector button. The respective API calls on the widget coming from
* those knobs where shown in the code already.
*
* See the full @ref fileselector_button_example_c "source code" for
* this example.
*
* @example fileselector_button_example.c
*/
/**
* @page fileselector_entry_example File selector entry widget example
*
* This code places an Elementary file selector entry widget on a
* window, along with some other checkboxes. Those are there just as
* knobs on the file selector entry's state.
*
* Here's how we instantiate it:
* @dontinclude fileselector_entry_example.c
* @skip ic = elm_icon_add
* @until evas_object_show
*
* Note that we set on it's button both icon and label
* decorations. It's set to exhibit the path of (and list the contents
* of, when internal file selector is launched) the @c "/tmp"
* directory, also, with elm_fileselector_entry_path_set(). What
* follows are checkboxes to exercise some of its API funtions:
* @dontinclude fileselector_entry_example.c
* @skip ck = elm_check_add
* @until callback_add(fs_entry
*
* The checkboxes will toggle whether the file selector entry's
* internal file selector:
* - must have an editable text entry for file names (thus, be in
* "save dialog mode")
* - is to be raised as an "inner window" (note it's the default
* behavior) or as a dedicated window
* - is to populate its view with folders only
* - is to expand its folders, in its view, in place, and not
* repainting it entirely just with the contents of a sole
* directory.
*
* Observe how the entry's text will match the string coming from the
* @c "file,chosen" smart event:
* @dontinclude fileselector_entry_example.c
* @skip hook on the
* @until }
* Whenever you dismiss or acknowledges the file selector, after it's
* raised, the @c event_info string will contain the last selection on
* it (if any was made).
*
* Try, also, to type in a valid system path and, then, open the file
* selector's window: it will start the file browsing there, for you.
*
* This is how the example, just after called, should look like:
*
* @image html screenshots/fileselector_entry_example_00.png
* @image latex screenshots/fileselector_entry_example_00.eps width=\textwidth
*
* Click on the file selector entry to raise its internal file
* selector, which will be contained on an "inner window":
*
* @image html screenshots/fileselector_entry_example_01.png
* @image latex screenshots/fileselector_entry_example_01.eps width=\textwidth
*
* Toggle the "inwin mode" switch off and, if you click on the file
* selector entry again, you'll get @b two windows, the original one
* (note the last selection there!)
*
* @image html screenshots/fileselector_entry_example_02.png
* @image latex screenshots/fileselector_entry_example_02.eps width=\textwidth
*
* and the file selector's new one
*
* @image html screenshots/fileselector_entry_example_03.png
* @image latex screenshots/fileselector_entry_example_03.eps width=\textwidth
*
* Play with the checkboxes to get the behavior changes on the file
* selector entry. The respective API calls on the widget coming from
* those knobs where shown in the code already.
*
* See the full @ref fileselector_entry_example_c "source code" for
* this example.
*
* @example fileselector_entry_example.c
*/
/**
* @page layout_example_01 Layout - Content, Table and Box
*
* This example shows how one can use the @ref Layout widget to create a
* customized distribution of widgets on the screen, controled by an Edje theme.
* The full source code for this example can be found at @ref
* layout_example_01_c.
*
* Our custom layout is defined by a file, @ref layout_example_edc, which is an
* Edje theme file. Look for the Edje documentation to understand it. For now,
* it's enough to know that we describe some specific parts on this layout
* theme:
* @li a title text field;
* @li a box container;
* @li a table container;
* @li and a content container.
*
* Going straight to the code, the following snippet instantiates the layout
* widget:
*
* @dontinclude layout_example_01.c
* @skip elm_layout_add
* @until evas_object_show(layout)
*
* As any other widget, we set some properties for the size calculation. But
* notice on this piece of code the call to the function elm_layout_file_set().
* Here is where the theme file is loaded, and particularly the specific group
* from this theme file. Also notice that the theme file here is referenced as
* an .edj, which is a .edc theme file compiled to its binary form. Again, look
* for the Edje documentation for more information about theme files.
*
* Next, we fetch from our theme a data string referenced by the key "title".
* This data was defined in the theme, and can be used as parameters which the
* program get from the specific theme that it is using. In this case, we store
* the title of this window and program in the theme, as a "data" entry, just
* for demonstration purposes:
*
* @until }
*
* This call elm_layout_data_get() is used to fetch the string based on the key,
* and elm_object_text_part_set() will set the part defined in the theme as
* "example/title" to contain this string. This key "example/title" has nothing
* special. It's just an arbitrary convention that we are using in this example.
* Every string in this example referencing a part of this theme will be of the
* form "example/".
*
* Now let's start using our layout to distribute things on the window space.
* Since the layout was added as a resize object to the elementary window, it
* will always occupy the entire space available for this window.
*
* The theme already has a title, and it also defines a table element which is
* positioned approximately between 50% and 70% of the height of this window,
* and has 100% of the width. We create some widgets (two icons, a clock and a
* button) and pack them inside the table, in a distribution similar to a HTML
* table:
*
* @until evas_object_show(bt)
*
* Notice that we just set size hints for every object, and call the function
* elm_layout_table_pack(), which does all the work. It will place the elements
* in the specified row/column, with row and column span if required, and then
* the object's size and position will be controled by the layout widget. It
* will also respect size hints, alignments and weight properties set to these
* widgets. The resulting distribution on the screen depends on the table
* properties (described in the theme), the size hints set on each widget, and
* on the cells of the table that are being used.
*
* For instance, we add the two icons and the clock on the first, second and
* third cells of the first row, and add the button the second row, making it
* span for 3 columns (thus having the size of the entire table width). This
* will result in a table that has 2 rows and 3 columns.
*
* Now let's add some widgets to the box area of our layout. This box is around
* 20% and 50% of the vertical size of the layout, and 100% of its width. The
* theme defines that it will use an "horizontal flow" distribution to its
* elements. Unlike the table, a box will distribute elements without knowing
* about rows and columns, and the distribution function selected will take care
* of putting them in row, column, both, or any other available layout. This is
* also described in the Edje documentation.
*
* This box area is similar to the @ref Box widget of elementary, with the
* difference that its position and properties are controled by the theme of the
* layout. It also contains more than one API to add items to it, since the
* items position now is defined in terms of a list of items, not a matrix.
* There's the first position (can have items added to it with
* elm_layout_box_prepend()), the last position (elm_layout_box_append()), the
* nth position (elm_layout_box_insert_at()) and the position right before an
* element (elm_layout_box_insert_before()). We use insert_at and prepend
* functions to add the first two buttons to this box, and insert_before on the
* callback of each button. The callback code will be shown later, but it
* basically adds a button just before the clicked button using the
* elm_layout_box_insert_before() function. Here's the code for adding the first
* 2 buttons:
*
* @until evas_object_show(item)
* @until evas_object_show(item)
*
* Finally, we have an area in this layout theme, in the bottom part of it,
* reserved for adding an specific widget. Differently from the 2 parts
* described until now, this one can only receive one widget with the call
* elm_layout_content_set(). If there was already an item on this specific part,
* it will be deleted (one can use elm_layout_content_unset() in order to remove
* it without deleting). An example of removing it without deleting, but
* manually deleting this widget just after that, can be seen on the callback
* for this button. Actually, the callback defined for this button will clean
* the two other parts (deleting all of their elements) and then remove and
* delete this button.
*
* @until _swallow_btn_cb
*
* Also notice that, for this last added button, we don't have to call
* evas_object_show() on it. This is a particularity of the theme for layouts,
* that will have total control over the properties like size, position,
* visibility and clipping of a widget added with elm_layout_content_set().
* Again, read the Edje documentation to understand this better.
*
* Now we just put the code for the different callbacks specified for each kind
* of button and make simple comments about them:
*
* @dontinclude layout_example_01.c
* @skip static void
* @until evas_object_del(item)
* @until }
*
* The first callback is used for the button in the table, and will just remove
* itself from the table with elm_layout_table_unpack(), which remove items
* without deleting them, and then calling evas_object_del() on itself.
*
* The second callback is for buttons added to the box. When clicked, these
* buttons will create a new button, and add them to the same box, in the
* position just before the clicked button.
*
* And the last callback is for the button added to the "content" area. It will
* clear both the table and the box, passing @c EINA_TRUE to their respective @c
* clear parameters, which will imply on the items of these containers being
* deleted.
*
* A screenshot of this example can be seen on:
*
* @image html screenshots/layout_example_01.png
* @image latex screenshots/layout_example_01.eps width=\textwidth
*
*/
/**
* @page layout_example_02 Layout - Predefined Layout
*
* This example shows how one can use the @ref Layout with a predefined theme
* layout to add a back and next button to a simple window. The full source code
* for this example can be found at @ref layout_example_02_c.
*
* After setting up the window and background, we add the layout widget to the
* window. But instead of using elm_layout_file_set() to load its theme from a
* custom theme file, we can use elm_layout_theme_set() to load one of the
* predefined layouts that come with elementary. Particularly on this example,
* we load the them of class "layout", group "application" and style
* "content-back-next" (since we want the back and next buttons).
*
* @dontinclude layout_example_02.c
* @skip elm_layout_add
* @until evas_object_show(layout)
*
* This default theme contains only a "content" area named
* "elm.swallow.content", where we can add any widget (it can be even a
* container widget, like a box, frame, list, or even another layout). Since we
* just want to show the resulting layout, we add a simple icon to it:
*
* @until layout_content_set
*
* This default layout also provides some signals when the next and prev buttons
* are clicked. We can register callbacks to them with the
* elm_object_signal_callback_add() function:
*
* @until elm,action,next
*
* In the @ref layout_example_03 you can see how to send signals to the layout with
* elm_object_signal_emit().
*
* Now our callback just changes the picture being displayed when one of the
* buttons are clicked:
*
* @dontinclude layout_example_02.c
* @skip images
* @until standard_set
* @until }
*
* It's possible to see that it gets the name of the image being shown from the
* array of image names, going forward on this array when "next" is clicked and
* backward when "back" is clicked.
*
* A screenshot of this example can be seen on:
*
* @image html screenshots/layout_example_02.png
* @image latex screenshots/layout_example_02.eps width=\textwidth
*/
/**
* @page layout_example_03 Layout - Signals and Size Changed
*
* This example shows how one can send and receive signals to/from the layout,
* and what to do when the layout theme has its size changed. The full source
* code for this example can be found at @ref layout_example_03_c.
*
* In this exmaple we will use another group from the same layout theme file
* used in @ref layout_example_01. Its instanciation and loading happens in the
* following lines:
*
* @dontinclude layout_example_03.c
* @skip elm_layout_add
* @until evas_object_show
*
* This time we register a callback to be called whenever we receive a signal
* after the end of the animation that happens in this layout:
*
* @until signal_callback_add
*
* We also add a button that will send signals to the layout:
*
* @until callback_add
*
* The callback for this button will check what type of signal it should send,
* and then emit it. The code for this callback follows:
*
* @dontinclude layout_exmaple_03.c
* @skip static Eina_Bool
* @until Enlarge
* @until }
* @until }
*
* As we said before, we are receiving a signal whenever the animation started
* by the button click ends. This is the callback for that signal:
*
* @until }
*
* Notice from this callback that the elm_layout_sizing_eval() function must be
* called if we want our widget to update its size after the layout theme having
* changed its minimum size. This happens because the animation specified in the
* theme increases the size of the content area to a value higher than the
* widget size, thus requiring more space. But the elementary layout widget
* has no way to know this, thus needing the elm_layout_sizing_eval() to
* be called on the layout, informing that this size has changed.
*
* A screenshot of this example can be seen on:
*
* @image html screenshots/layout_example_03.png
* @image latex screenshots/layout_example_03.eps width=\textwidth
*/
/**
* @page tutorial_hover Hover example
* @dontinclude hover_example_01.c
*
* On this example we are going to have a button that when clicked will show our
* hover widget, this hover will have content set on it's left, top, right and
* middle positions. In the middle position we are placing a button that when
* clicked will hide the hover. We are also going to use a non-default theme
* for our hover. We won't explain the functioning of button for that see @ref
* Button.
*
* We start our example with a couple of callbacks that show and hide the data
* they're given(which we'll see later on is the hover widget):
* @skip static
* @until }
* @until }
*
* In our main function we'll do some initialization and then create 3
* rectangles, one red, one green and one blue to use in our hover. We'll also
* create the 2 buttons that will show and hide the hover:
* @until show(bt2)
*
* With all of that squared away we can now get to the heart of the matter,
* creating our hover widget, which is easy as pie:
* @until hover
*
* Having created our hover we now need to set the parent and target. Which if
* you recall from the function documentations are going to tell the hover which
* area it should cover and where it should be centered:
* @until bt
*
* Now we set the theme for our hover. We're using the popout theme which gives
* our contents a white background and causes their appearance to be animated:
* @until popout
*
* And finally we set the content for our positions:
* @until bt2
*
* So far so good? Great 'cause that's all there is too it, what is left now is
* just connecting our buttons to the callbacks we defined at the beginning of
* the example and run the main loop:
* @until ELM_MAIN
*
* Our example will initially look like this:
*
* @image html screenshots/hover_example_01.png
* @image latex screenshots/hover_example_01.eps width=\textwidth
*
* And after you click the "Show hover" button it will look like this:
*
* @image html screenshots/hover_example_01_a.png
* @image latex screenshots/hover_example_01_a.eps width=\textwidth
*
* @example hover_example_01.c
*/
/**
* @page tutorial_flip Flip example
* @dontinclude flip_example_01.c
*
* This example will show a flip with two rectangles on it(one blue, one
* green). Our example will allow the user to choose the animation the flip
* uses and to interact with it. To allow the user to choose the interaction
* mode we use radio buttons, we will however not explain them, if you would
* like to know more about radio buttons see @ref radio.
*
* We start our example with the usual setup and then create the 2 rectangles
* we will use in our flip:
* @until show(rect2)
*
* The next thing to do is to create our flip and set it's front and back
* content:
* @until show
*
* The next thing we do is set the interaction mode(which the user can later
* change) to the page animation:
* @until PAGE
*
* Setting a interaction mode however is not sufficient, we also need to
* choose which directions we allow interaction from, for this example we
* will use all of them:
* @until RIGHT
*
* We are also going to set the hitsize to the entire flip(in all directions)
* to make our flip very easy to interact with:
* @until RIGHT
*
* After that we create our radio buttons and start the main loop:
* @until ELM_MAIN()
*
* When the user clicks a radio button a function that changes the
* interaction mode and animates the flip is called:
* @until }
* @note The elm_flip_go() call here serves no purpose other than to
* ilustrate that it's possible to animate the flip programmatically.
*
* Our example will look like this:
*
* @image html screenshots/flip_example_01.png
* @image latex screenshots/flip_example_01.eps width=\textwidth
*
* @note Since this is an animated example the screenshot doesn't do it
* justice, it is a good idea to compile it and see the animations.
*
* @example flip_example_01.c
*/
/**
* @page tutorial_label Label example
* @dontinclude label_example_01.c
*
* In this example we are going to create 6 labels, set some properties on
* them and see what changes in appearance those properties cause.
*
* We start with the setup code that by now you should be familiar with:
* @until show(bg)
*
* For our first label we have a moderately long text(that doesn't fit in the
* label's width) so we will make it a sliding label. Since the text isn't
* too long we don't need the animation to be very long, 3 seconds should
* give us a nice speed:
* @until show(label
*
* For our second label we have the same text, but this time we aren't going
* to have it slide, we're going to ellipsize it. Because we ask our label
* widget to ellipsize the text it will first diminsh the fontsize so that it
* can show as much of the text as possible:
* @until show(label
*
* For the third label we are going to ellipsize the text again, however this
* time to make sure the fontsize isn't diminshed we will set a line wrap.
* The wrap won't actually cause a line break because we set the label to
* ellipsize:
* @until show(label
*
* For our fourth label we will set line wrapping but won't set ellipsis, so
* that our text will indeed be wrapped instead of ellipsized. For this label
* we choose character wrap:
* @until show(label
*
* Just two more, for our fifth label we do the same as for the fourth
* except we set the wrap to word:
* @until show(label
*
* And last but not least for our sixth label we set the style to "marker" and
* the color to red(the default color is white which would be hard to see on
* our white background):
* @until show(label
*
* Our example will look like this:
*
* @image html screenshots/label_example_01.png
* @image latex screenshots/label_example_01.eps width=\textwidth
*
* @example label_example_01.c
*/
/**
* @page tutorial_image Image example
* @dontinclude image_example_01.c
*
* This example is as simple as possible. An image object will be added to the
* window over a white background, and set to be resizeable together with the
* window. All the options set through the example will affect the behavior of
* this image.
*
* We start with the code for creating a window and its background, and also
* add the code to write the path to the image that will be loaded:
*
* @skip int
* @until snprintf
*
* Now we create the image object, and set that file to be loaded:
*
* @until }
*
* We can now go setting our options.
*
* elm_image_no_scale_set() is used just to set this value to true (we
* don't want to scale our image anyway, just resize it).
*
* elm_image_scale_set() is used to allow the image to be resized to a size
* smaller than the original one, but not to a size bigger than it.
*
* elm_elm_image_smooth_set() will disable the smooth scaling, so the scale
* algorithm used to scale the image to the new object size is going to be
* faster, but with a lower quality.
*
* elm_image_orient_set() is used to flip the image around the (1, 0) (0, 1)
* diagonal.
*
* elm_image_aspect_ratio_retained_set() is used to keep the original aspect
* ratio of the image, even when the window is resized to another aspect ratio.
*
* elm_image_fill_outside_set() is used to ensure that the image will fill the
* entire area available to it, even if keeping the aspect ratio. The image
* will overflow its width or height (any of them that is necessary) to the
* object area, instead of resizing the image down until it can fit entirely in
* this area.
*
* elm_image_editable_set() is used just to cover the API, but won't affect
* this example since we are not using any copy & paste property.
*
* This is the code for setting these options:
*
* @until editable
*
* Now some last touches in our object size hints, window and background, to
* display this image properly:
*
* @until ELM_MAIN
*
* This example will look like this:
*
* @image html screenshots/image_example_01.png
* @image latex screenshots/image_example_01.eps width=\textwidth
*
* @example image_example_01.c
*/
/**
* @page tutorial_icon Icon example
* @dontinclude icon_example_01.c
*
* This example is as simple as possible. An icon object will be added to the
* window over a white background, and set to be resizeable together with the
* window. All the options set through the example will affect the behavior of
* this icon.
*
* We start with the code for creating a window and its background:
*
* @skip int
* @until show(bg)
*
* Now we create the icon object, and set lookup order of the icon, and choose
* the "home" icon:
*
* @until home
*
* An intersting thing is that after setting this, it's possible to check where
* in the filesystem is the theme used by this icon, and the name of the group
* used:
*
* @until printf
*
* We can now go setting our options.
*
* elm_icon_no_scale_set() is used just to set this value to true (we
* don't want to scale our icon anyway, just resize it).
*
* elm_icon_scale_set() is used to allow the icon to be resized to a size
* smaller than the original one, but not to a size bigger than it.
*
* elm_elm_icon_smooth_set() will disable the smooth scaling, so the scale
* algorithm used to scale the icon to the new object size is going to be
* faster, but with a lower quality.
*
* elm_icon_fill_outside_set() is used to ensure that the icon will fill the
* entire area available to it, even if keeping the aspect ratio. The icon
* will overflow its width or height (any of them that is necessary) to the
* object area, instead of resizing the icon down until it can fit entirely in
* this area.
*
* This is the code for setting these options:
*
* @until fill_outside
*
* However, if you try this example you may notice that this image is not being
* affected by all of these options. This happens because the used icon will be
* from elementary theme, and thus it has its own set of options like smooth
* scaling and fill_outside options. You can change the "home" icon to use some
* image (from your system) and see that then those options will be respected.
*
* Now some last touches in our object size hints, window and background, to
* display this icon properly:
*
* @until ELM_MAIN
*
* This example will look like this:
*
* @image html screenshots/icon_example_01.png
* @image latex screenshots/icon_example_01.eps width=\textwidth
*
* @example icon_example_01.c
*/
/**
* @page tutorial_hoversel Hoversel example
* @dontinclude hoversel_example_01.c
*
* In this example we will create a hoversel with 3 items, one with a label but
* no icon and two with both a label and an icon. Every item that is clicked
* will be deleted, but everytime the hoversel is activated we will also add an
* item. In addition our first item will print all items when clicked and our
* third item will clear all items in the hoversel.
*
* We will start with the normal creation of window stuff:
* @until show(bg)
*
* Next we will create a red rectangle to use as the icon of our hoversel:
* @until show
*
* And now we create our hoversel and set some of it's properties. We set @p win
* as its parent, ask it to not be horizontal(be vertical) and give it a label
* and icon:
* @until icon_set
*
* Next we will add our three items, setting a callback to be called for the
* first and third:
* @until _rm_items
*
* We also set a pair of callbacks to be called whenever any item is selected or
* when the hoversel is activated:
* @until clicked
*
* And then ask that our hoversel be shown and run the main loop:
* @until ELM_MAIN
*
* We now have the callback for our first item which prints all items in the
* hoversel:
* @until }
*
* Next we have the callback for our third item which removes all items from the
* hoversel:
* @until }
*
* Next we have the callback that is called whenever an item is clicked and
* deletes that item:
* @until }
*
* And the callback that is called when the hoversel is activated and adds an
* item to the hoversel. Note that since we allocate memory for the item we need
* to know when the item dies so we can free that memory:
* @until }
*
* And finally the callback that frees the memory we allocated for items created
* in the @p _add_item callback:
* @until }
*
* Our example will initially look like this:
*
* @image html screenshots/hoversel_example_01.png
* @image latex screenshots/hoversel_example_01.eps width=\textwidth
*
* And when the hoversel is clicked it will look like this:
*
* @image html screenshots/hoversel_example_01_a.png
* @image latex screenshots/hoversel_example_01_a.eps width=\textwidth
*
* @example hoversel_example_01.c
*/
/**
* @page conformant_example Conformant Example.
*
* In this example we'll explain how to create applications to work
* with illume, considering space required for virtual keyboards, indicator
* and softkeys.
*
* Illume is a module for Enlightenment that modifies the user interface
* to work cleanly and nicely on a mobile device. It has support for
* virtual keyboard, among other nice features.
*
* Let's start creating a very simple window with a vertical box
* with multi-line entry between two buttons.
* This entry will expand filling all space on window not used by buttons.
*
* @dontinclude conformant_example_01.c
* @skipline elm_main
* @until }
*
* For information about how to create windows, boxes, buttons or entries,
* look for documentation for these widgets.
*
* It will looks fine when you don't need a virtual keyboard, as you
* can see on the following image:
*
* @image html screenshots/conformant_example_01.png
* @image latex screenshots/conformant_example_01.eps width=\textwidth
*
* But if you call a virtual keyboard, the window will resize, changing
* widgets size and position. All the content will shrink.
*
* If you don't want such behaviour, you
* will need a conformant to account for space taken up by the indicator,
* virtual keyboard and softkey.
*
* In this case, using the conformant in a proper way, you will have
* a window like the following:
*
* @image html screenshots/conformant_example_02.png
* @image latex screenshots/conformant_example_02.eps width=\textwidth
*
* As you can see, it guess the space that will be required by the keyboard,
* indicator and softkey bars.
*
* So, let's study each step required to transform our initial example on
* the second one.
*
* First of all, we need to set the window as an illume conformant window:
* @dontinclude conformant_example_02.c
* @skipline elm_win_conformant_set
*
* Next, we'll add a conformant widget, and set it to resize with the window,
* instead of the box.
* @skipline conform
* @until evas_object_show
*
* Finally, we'll set the box as conformant's content, just like this:
* @skipline elm_conformant_content_set
*
* Compare both examples code:
* @ref conformant_example_01.c "conformant_example_01.c"
* @ref conformant_example_02.c "conformant_example_02.c"
*
* @example conformant_example_01.c
* @example conformant_example_02.c
*/
/**
* @page index_example_01 Index widget example 1
*
* This code places an Elementary index widget on a window, which also
* has a very long list of arbitrary strings on it. The list is
* sorted alphabetically and the index will be used to index the first
* items of each set of strings beginning with an alphabet letter.
*
* Below the list are some buttons, which are there just to exercise
* some index widget's API.
*
* Here's how we instantiate it:
* @dontinclude index_example_01.c
* @skip elm_list_add
* @until evas_object_show(d.index)
* where we're showing also the list being created. Note that we issue
* elm_win_resize_object_add() on the index, so that it's set to have
* the whole window as its container. Then, we have to populate both
* list and index widgets:
* @dontinclude index_example_01.c
* @skip for (i = 0; i < (sizeof(dict) / sizeof(dict[0])); i++)
* @until }
* @until }
*
* The strings populating the list come from a file
* @dontinclude index_example_01.c
* @skip static const char *dict
* @until }
*
* We use the @c curr char variable to hold the last initial letter
* seen on that ordered list of strings, so that we're able to have an
* index item pointing to each list item starting a new letter
* "section". Note that our index item data pointers will be the list
* item handles. We are also setting a callback function to index
* items deletion events:
* @dontinclude index_example_01.c
* @skip static void
* @until }
*
* There, we show you that the @c event_info pointer will contain the
* item in question's data, i.e., a given list item's pointer. Because
* item data is also returned in the @c data argument on
* @c Evas_Smart_Cb functions, those two pointers must have the same
* values. On this deletion callback, we're deleting the referred list
* item too, just to exemplify that anything could be done there.
*
* Next, we hook to two smart events of the index object:
* @dontinclude index_example_01.c
* @skip smart_callback_add(d.index
* @until _index_selected
* @dontinclude index_example_01.c
* @skip "delay,changed" hook
* @until }
* @until }
*
* Check that, whenever one holds the mouse pressed over a given index
* letter for some time, the list beneath it will roll down to the
* item pointed to by that index item. When one releases the mouse
* button, the second callback takes place. There, we check that the
* reported item data, on @c event_info, is the same reported by
* elm_index_item_selected_get(), which gives the last selection's
* data on the index widget.
*
* The first of the three buttons that follow will call
* elm_index_active_set(), thus showing the index automatically for
* you, if it's not already visible, what is checked with
* elm_index_active_get(). The second button will exercise @b deletion
* of index item objects, by the following code:
* @dontinclude index_example_01.c
* @skip delete an index item
* @until }
*
* It will get the last index item selected's data and find the
* respective #Elm_Index_Item handle with elm_index_item_find(). We
* need the latter to query the indexing letter string from, with
* elm_index_item_letter_get(). Next, comes the delition, itself,
* which will also trigger the @c _index_item_del callback function,
* as said above.
*
* The third button, finally, will exercise elm_index_item_clear(),
* which will delete @b all of the index's items.
*
* This is how the example program's window looks like with the index
* widget hidden:
* @image html screenshots/index_example_00.png
* @image latex screenshots/index_example_00.eps
*
* When it's shown, it's like the following figure:
* @image html screenshots/index_example_01.png
* @image latex screenshots/index_example_01.eps
*
* See the full @ref index_example_01_c "source code" for
* this example.
*
* @example index_example_01.c
*/
/**
* @page index_example_02 Index widget example 2
*
* This code places an Elementary index widget on a window, indexing
* grid items. The items are placed so that their labels @b don't
* follow any order, but the index itself is ordered (through
* elm_index_item_sorted_insert()). This is a complement to to @ref
* index_example_01 "the first example on indexes".
*
* Here's the list of item labels to be used on the grid (in that
* order):
* @dontinclude index_example_02.c
* @skip static const char *items
* @until };
*
* In the interesting part of the code, here, we first instantiate the
* grid (more on grids on their examples) and, after creating our
* index, for each grid item we also create an index one to reference
* it:
* @dontinclude index_example_02.c
* @skip grid = elm_gengrid_add
* @until }
* @until smart_callback_add
*
* The order in which they'll appear in the index, though, is @b
* alphabetical, becase of elm_index_item_sorted_insert() usage
* together with the comparing function, where we take the letters of
* each index item to base our ordering on. The parameters on
* @c _index_cmp have to be declared as void pointers because of the
* @c Eina_Compare_Cb prototype requisition, but in this case we know
* they'll be #Elm_Index_Item's:
* @dontinclude index_example_02.c
* @skip ordering alphabetically
* @until }
*
* The last interesting bit is the callback in the @c "delay,changed"
* smart event, which will bring the given grid item to the grid's
* visible area:
* @dontinclude index_example_02.c
* @skip static void
* @until }
*
* Note how the grid will move kind of randomly while you move your
* mouse pointer held over the index from top to bottom -- that's
* because of the the random order the items have in the grid itself.
*
* This is how the example program's window looks like:
* @image html screenshots/index_example_03.png
* @image latex screenshots/index_example_03.eps
*
* See the full @ref index_example_c "source code" for
* this example.
*
* @example index_example_02.c
*/
/**
* @page tutorial_ctxpopup Ctxpopup example
* @dontinclude ctxpopup_example_01.c
*
* In this example we have a list with two items, when either item is clicked
* a ctxpopup for it will be shown. Our two ctxpopups are quite different, the
* one for the first item is a vertical and it's items contain both labels and
* icons, the one for the second item is horizontal and it's items have icons
* but not labels.
*
* We will begin examining our example code by looking at the callback we'll use
* when items in the ctxpopup are clicked. It's very simple, all it does is
* print the label present in the ctxpopup item:
* @until }
*
* Next we examine a function that creates ctxpopup items, it was created to
* avoid repeating the same code whenever we needed to add an item to our
* ctxpopup. Our function creates an icon from the standard set of icons, and
* then creates the item, with the label received as an argument. We also set
* the callback to be called when the item is clicked:
* @until }
*
* Finally we have the function that will create the ctxpopup for the first item
* in our list. This one is somewhat more complex though, so let's go through it
* in parts. First we declare our variable and add the ctxpopup:
* @until ctxpopup_add
*
* Next we create a bunch of items for our ctxpopup, marking two of them as
* disabled just so we can see what that will look like:
* @until disabled_set
* @until disabled_set
*
* Then we ask evas where the mouse pointer was so that we can have our ctxpopup
* appear in the right place, set a maximum size for the ctxpopup, move it and
* show it:
* @until show
*
* And last we mark the list item as not selected:
* @until }
*
* Our next function is the callback that will create the ctxpopup for the
* second list item, it is very similar to the previous function. A couple of
* interesting things to note is that we ask our ctxpopup to be horizontal, and
* that we pass NULL as the label for every item:
* @until }
*
* And with all of that in place we can now get to our main function where we
* create the window, the list, the list items and run the main loop:
* @until ELM_MAIN()
*
* The example will initially look like this:
*
* @image html screenshots/ctxpopup_example_01.png
* @image latex screenshots/ctxpopup_example_01.eps width=\textwidth
*
* @note This doesn't show the ctxpopup tough, since it will only appear when
* we click one of the list items.
*
* Here is what our first ctxpopup will look like:
*
* @image html screenshots/ctxpopup_example_01_a.png
* @image latex screenshots/ctxpopup_example_01_a.eps width=\textwidth
*
* And here the second ctxpopup:
*
* @image html screenshots/ctxpopup_example_01_b.png
* @image latex screenshots/ctxpopup_example_01_b.eps width=\textwidth
*
* @example ctxpopup_example_01.c
*/
/**
* @page tutorial_pager
* @dontinclude pager_example_01.c
*
* In this example we'll have a pager with 3 rectangles on it, one blue, one
* green and one blue, we'll also have 1 button for each rectangle. Pressing a
* button will bring the associated rectangle to the front of the pager(promote
* it).
*
* We start our example with some run of the mill code that you've seen in other
* examples:
* @until show
*
* And then we get right to creating our pager, setting a style and some basic
* properties to it:
* @until show
*
* Well a pager without any content is not of much use, so let's create the
* first of our rectangles, add it to the pager and create the button for it:
* @until smart_callback
* @note The only line of above code that directly relates to our pager is the
* call to elm_pager_content_push().
*
* And now we will do the same thing again twice for our next two rectangles:
* @until smart_callback
* @until smart_callback
*
* Now that we haver our widgets create we can get to running the main loop:
* @until ELM_MAIN
*
* We also have the callback that is called when any of the buttons is pressed,
* this callback is receiving the rectangle in it's @p data argument, so we
* check if it's already on top and if not move it there:
* @until }
*
* Our example will look like this:
*
* @image html screenshots/pager_example_01.png
* @image latex screenshots/pager_example_01.eps width=\textwidth
* @note Like all examples that involve animations the screenshot doesn't do it
* justice, seeing it in action is a must.
*
* @example pager_example_01.c
*/
/**
* @page tutorial_separator Separator example
* @dontinclude separator_example_01.c
*
* In this example we are going to pack two rectangles in a box, and have a
* separator in the middle.
*
* So we start we the window, background, box and rectangle creation, all pretty
* normal stuff:
* @until pack_end
*
* Once we have our first rectangle in the box we create and add our separator:
* @until pack_end
* @note Since our box is in horizontal mode it's a good idea to set the
* separator to be horizontal too.
*
* And now we add our second rectangle and run the main loop:
* @until ELM_MAIN
*
* This example will look like this:
*
* @image html screenshots/separator_example_01.png
* @image eps screenshots/separator_example_01.eps width=\textwidth
*
* @example separator_example_01.c
*/
/**
* @page tutorial_radio Radio example
* @dontinclude radio_example_01.c
*
* In this example we will create 4 radio buttons, three of them in a group and
* another one not in the group. We will also have the radios in the group
* change the value of a variable directly and have then print it when the value
* changes. The fourth button is in the example just to make clear that radios
* outside the group don't affect the group.
*
* We'll start with the usual includes:
* @until #endif
*
* And move right to declaring a static variable(the one whose value the radios
* will change):
* @until static
*
* We now need to have a window and all that good stuff to be able to place our
* radios in:
* @until show(bx)
*
* And now we create a radio button, since this is the first button in our group
* we set the group to be the radio(so we can set the other radios in the same
* group). We also set the state value of this radio to 1 and the value pointer
* to @p val, since val is @p 1 this has the additional effect of setting the
* radio value to @p 1. For this radio we choose the default home icon:
* @until show
*
* To check that our radio buttons are working we'll add a callback to the
* "changed" signal of the radio:
* @until smart_callback
*
* The creation of our second radio button is almost identical, the 2
* differences worth noting are, the value of this radio 2 and that we add this
* radio to the group of the first radio:
* @until smart_callback
*
* For our third callback we'll omit the icon and set the value to 3, we'll also
* add it to the group of the first radio:
* @until smart_callback
*
* Our fourth callback has a value of 4, no icon and most relevantly is not a
* member of the same group as the other radios:
* @until show
*
* We finally run the main loop:
* @until ELM_MAIN
*
* And the last detail in our example is the callback that prints @p val so that
* we can see that the radios are indeed changing its value:
* @until }
*
* The example will look like this:
*
* @image html screenshots/radio_example_01.png
* @image latex screenshots/radio_example_01.epx width=\textwidth
*
* @example radio_example_01.c
*/
/**
* @page tutorial_toggle Toggle example
* @dontinclude toggle_example_01.c
*
* In this example we'll create 2 toggle widgets. The first will have an icon
* and the state names will be the default "on"/"off", it will also change the
* value of a variable directly. The second won't have a icon, the state names
* will be "Enabled"/"Disabled", it will start "Enabled" and it won't set the
* value of a variable.
*
* We start with the usual includes and prototype for callback which will be
* implemented and detailed later on:
* @until _cb2
*
* We then declare a static global variable(the one whose value will be changed
* by the first toggle):
* @until static
*
* We now have to create our window and all that usual stuff:
* @until show(bx)
*
* The creation of a toggle is no more complicated than that of any other
* widget:
* @until add
*
* For our first toggle we don't set the states labels so they will stay the
* default, however we do set a label for the toggle, an icon and the variable
* whose value it should change:
* @until show
*
* We also set the callback that will be called when the toggles value changes:
* @until smart_callback
*
* For our second toggle it important to note that we set the states labels,
* don't set an icon or variable, but set the initial state to
* EINA_TRUE("Enabled"):
* @until show
*
* For the second toggle we will use a different callback:
* @until smart_callback
*
* We then ask the main loop to start:
* @until ELM_MAIN
*
* The callback for our first toggle will look the value of @p val and print it:
* @until }
*
* For our second callback we need to do a little bit more, since the second
* toggle doesn't change the value of a variable we have to ask it what its
* state is:
* @until }
*
* This example will look like this:
*
* @image html screenshots/toggle_example_01.png
* @image latex screenshots/toggle_example_01.eps width=\textwidth
*
* @example toggle_example_01.c
*/
/**
* @page bg_example_01_c bg_example_01.c
* @include bg_example_01.c
* @example bg_example_01.c
*/
/**
* @page bg_example_02_c bg_example_02.c
* @include bg_example_02.c
* @example bg_example_02.c
*/
/**
* @page bg_example_03_c bg_example_03.c
* @include bg_example_03.c
* @example bg_example_03.c
*/
/**
* @page actionslider_example_01 Actionslider example
* @include actionslider_example_01.c
* @example actionslider_example_01.c
*/
/**
* @page animator_example_01_c Animator example 01
* @include animator_example_01.c
* @example animator_example_01.c
*/
/**
* @page transit_example_01_c Transit example 1
* @include transit_example_01.c
* @example transit_example_01.c
*/
/**
* @page transit_example_02_c Transit example 2
* @include transit_example_02.c
* @example transit_example_02.c
*/
/**
* @page general_functions_example_c General (top-level) functions example
* @include general_funcs_example.c
* @example general_funcs_example.c
*/
/**
* @page clock_example_c Clock example
* @include clock_example.c
* @example clock_example.c
*/
/**
* @page flipselector_example_c Flipselector example
* @include flipselector_example.c
* @example flipselector_example.c
*/
/**
* @page fileselector_example_c Fileselector example
* @include fileselector_example.c
* @example fileselector_example.c
*/
/**
* @page fileselector_button_example_c Fileselector button example
* @include fileselector_button_example.c
* @example fileselector_button_example.c
*/
/**
* @page fileselector_entry_example_c Fileselector entry example
* @include fileselector_entry_example.c
* @example fileselector_entry_example.c
*/
/**
* @page index_example_01_c Index example
* @include index_example_01.c
* @example index_example_01.c
*/
/**
* @page index_example_02_c Index example
* @include index_example_02.c
* @example index_example_02.c
*/
/**
* @page layout_example_01_c layout_example_01.c
* @include layout_example_01.c
* @example layout_example_01.c
*/
/**
* @page layout_example_02_c layout_example_02.c
* @include layout_example_02.c
* @example layout_example_02.c
*/
/**
* @page layout_example_03_c layout_example_03.c
* @include layout_example_03.c
* @example layout_example_03.c
*/
/**
* @page layout_example_edc An example of layout theme file
*
* This theme file contains two groups. Each of them is a different theme, and
* can be used by an Elementary Layout widget. A theme can be used more than
* once by many different Elementary Layout widgets too.
*
* @include layout_example.edc
* @example layout_example.edc
*/