forked from enlightenment/efl
Ecore: ecore_evas basics documentation.
SVN revision: 62055
This commit is contained in:
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@ -16,6 +16,7 @@
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* @li @ref ecore_con_client_simple_example_c
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* @li @ref ecore_evas_callbacks_example_c
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* @li @ref ecore_evas_object_example_c
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* @li @ref ecore_evas_basics_example_c
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*
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*/
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@ -959,7 +960,7 @@
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* pipe, fork our process, and then the child is going to comunicate to the
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* parent the result of its processing through the pipe.
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*
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* As always we start with our includes, nothing especial:
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* As always we start with our includes, nothing special:
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* @skip #include
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* @until Ecore.h
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*
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@ -1325,3 +1326,56 @@
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* @include ecore_evas_object_example.c
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* @example ecore_evas_object_example.c
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*/
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/**
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* @page ecore_evas_basics_example_c Ecore Evas basics example
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* @dontinclude ecore_evas_basics_example.c
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*
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* This example will ilustrate the usage of some basic Ecore_Evas functions.
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* This example will list the available evas engines, check which one we used to
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* create our window and set some data on our Ecore_Evas. It also allows you to
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* hide/show all windows in this process(we only have one, but if there were
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* more they would be hidden), to hide the windows type 'h' and hit return, to
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* show them, type 's' and hit return.
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*
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* The very first thing we'll do is init ecore_evas:
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* @skipline evas_init
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* @until return 1
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*
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* Once inited we query which engines are available:
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* @until ecore_evas_engines_free
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*
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* We then create an Ecore_Evas(window) with the first available engine, on
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* position 0,0 with size 200,200 and no especial flags:
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* @until evas_show
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*
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* We now add some important data to our Ecore_Evas:
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* @until data_set
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*
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* And since our data is dinamically allocated we'll need to free it when the
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* Ecore_Evas dies:
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* @until delete_request
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* @dontinclude ecore_evas_basics_example.c
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* @skip static void
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* @until }
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* @skip printf("Using
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*
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* We now print which Evas engine is being used for our example:
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* @until printf
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*
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* Next we are going to add a background to our window, for which we'll need to
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* get the canvas(Evas) on which to draw it:
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* @until canvas
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*
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* We then do a sanity check, veryfing if the Ecore_Evas of the Evas is the
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* Ecore_Evas from which we got the Evas:
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* @until printf
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*
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* Once all else is done we run our main loop, and when that is done(application
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* is exiting) we free our Ecore_Evas and shutdown the ecore_evas subsystem:
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* @until shutdown
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*
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* Here you have the full-source of the code:
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* @include ecore_evas_basics_example.c
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* @example ecore_evas_basics_example.c
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*/
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@ -46,7 +46,8 @@ SRCS = \
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ecore_thread_example.c \
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ecore_evas_callbacks.c \
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ecore_evas_window_sizes_example.c \
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ecore_evas_object_example.c
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ecore_evas_object_example.c \
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ecore_evas_basics_example.c
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EXTRA_DIST = $(SRCS)
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@ -78,7 +79,8 @@ pkglib_PROGRAMS += \
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ecore_thread_example \
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ecore_evas_callbacks \
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ecore_evas_window_sizes_example \
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ecore_evas_object_example
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ecore_evas_object_example \
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ecore_evas_basics_example
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ecore_con_lookup_example_LDADD = $(ECOREBASELDADD) $(top_builddir)/src/lib/ecore_con/libecore_con.la
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ecore_con_url_headers_example_LDADD = $(ECOREBASELDADD) $(top_builddir)/src/lib/ecore_con/libecore_con.la
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@ -0,0 +1,91 @@
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/**
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* Ecore example illustrating the basics of ecore evas usage.
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*
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* You'll need at least one Evas engine built for it (excluding the
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* buffer one). See stdout/stderr for output.
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*
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* @verbatim
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* gcc -o ecore_evas_basics_example ecore_evas_basics_example.c `pkg-config --libs --cflags ecore-evas`
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* @endverbatim
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*/
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#include <Ecore.h>
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#include <Ecore_Evas.h>
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#include <unistd.h>
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static Eina_Bool
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_stdin_cb(void *data, Ecore_Fd_Handler *handler)
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{
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Eina_List *l;
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Ecore_Evas *ee;
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char c;
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scanf("%c", &c);
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if (c == 'h')
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EINA_LIST_FOREACH(ecore_evas_ecore_evas_list_get(), l, ee)
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ecore_evas_hide(ee);
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else if (c == 's')
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EINA_LIST_FOREACH(ecore_evas_ecore_evas_list_get(), l, ee)
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ecore_evas_show(ee);
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return ECORE_CALLBACK_RENEW;
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}
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static void
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_on_delete(Ecore_Evas *ee)
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{
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free(ecore_evas_data_get(ee, "key"));
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ecore_main_loop_quit();
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}
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int
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main(void)
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{
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Ecore_Evas *ee;
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Evas *canvas;
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Evas_Object *bg;
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Eina_List *engines, *l;
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char *data;
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if(ecore_evas_init() <= 0)
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return 1;
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engines = ecore_evas_engines_get();
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printf("Available engines:\n");
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EINA_LIST_FOREACH(engines, l, data)
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printf("%s\n", data);
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ecore_evas_engines_free(engines);
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ee = ecore_evas_new(NULL, 0, 0, 200, 200, NULL);
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ecore_evas_title_set(ee, "Ecore Evas basics Example");
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ecore_evas_show(ee);
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data = malloc(sizeof(char) * 6);
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sprintf(data, "%s", "hello");
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ecore_evas_data_set(ee, "key", data);
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ecore_evas_callback_delete_request_set(ee, _on_delete);
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printf("Using %s engine!\n", ecore_evas_engine_name_get(ee));
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canvas = ecore_evas_get(ee);
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if(ecore_evas_ecore_evas_get(canvas) == ee)
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printf("Everything is sane!\n");
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bg = evas_object_rectangle_add(canvas);
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evas_object_color_set(bg, 0, 0, 255, 255);
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evas_object_resize(bg, 200, 200);
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evas_object_show(bg);
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ecore_evas_object_associate(ee, bg, ECORE_EVAS_OBJECT_ASSOCIATE_BASE);
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ecore_main_fd_handler_add(STDIN_FILENO,
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ECORE_FD_READ | ECORE_FD_ERROR,
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_stdin_cb,
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NULL, NULL, NULL);
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ecore_main_loop_begin();
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ecore_evas_free(ee);
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ecore_evas_shutdown();
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return 0;
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}
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@ -38,6 +38,7 @@
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* The following is a list of example that partially exemplify Ecore_Evas's API:
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* @li @ref ecore_evas_callbacks_example_c
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* @li @ref ecore_evas_object_example_c
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* @li @ref ecore_evas_basics_example_c
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*/
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/* FIXME:
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@ -142,14 +143,61 @@ typedef struct _Ecore_Evas Ecore_Evas;
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EAPI int ecore_evas_engine_type_supported_get(Ecore_Evas_Engine_Type engine);
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/**
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* @brief Init the Ecore_Evas system.
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*
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* @return How many times the lib has been initialized, 0 indicates failure.
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*
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* Set up the Evas wrapper system. Init Evas and Ecore libraries.
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*
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* @see ecore_evas_shutdown()
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*/
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EAPI int ecore_evas_init(void);
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/**
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* @brief Shut down the Ecore_Evas system.
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*
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* @return 0 if ecore evas is fully shut down, or > 0 if it still being used.
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*
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* This closes the Evas wrapper system down. Shut down Evas and Ecore libraries.
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*
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* @see ecore_evas_init()
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*/
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EAPI int ecore_evas_shutdown(void);
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EAPI void ecore_evas_app_comp_sync_set(Eina_Bool do_sync);
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EAPI Eina_Bool ecore_evas_app_comp_sync_get(void);
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/**
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* @brief Returns a list of supported engines names.
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*
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* @return Newly allocated list with engines names. Engines names
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* strings are internal and should be considered constants, do not
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* free or modify them, to free the list use ecore_evas_engines_free().
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*/
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EAPI Eina_List *ecore_evas_engines_get(void);
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/**
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* @brief Free list returned by ecore_evas_engines_get()
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*/
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EAPI void ecore_evas_engines_free(Eina_List *engines);
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/**
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* @brief Creates a new Ecore_Evas based on engine name and common parameters.
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*
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* @param engine_name engine name as returned by
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* ecore_evas_engines_get() or NULL to use environment variable
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* ECORE_EVAS_ENGINE, that can be undefined and in this case
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* this call will try to find the first working engine.
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* @param x horizontal position of window (not supported in all engines)
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* @param y vertical position of window (not supported in all engines)
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* @param w width of window
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* @param h height of window
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* @param extra_options string with extra parameter, dependent on engines
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* or NULL. String is usually in the form: 'key1=value1;key2=value2'.
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* Pay attention that when getting that from shell commands, most
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* consider ';' as the command terminator, so you need to escape
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* it or use quotes.
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*
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* @return Ecore_Evas instance or NULL if creation failed.
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*/
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EAPI Ecore_Evas *ecore_evas_new(const char *engine_name, int x, int y, int w, int h, const char *extra_options);
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EAPI Ecore_Evas *ecore_evas_cocoa_new(const char* name, int w, int h);
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/* generic manipulation calls */
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/**
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* @brief Get the engine name used by this Ecore_Evas(window).
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*
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* @param ee Ecore_Evas whose engine's name is desired.
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* @return A string that can(usually) be used in ecore_evas_new()
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*
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* @see ecore_evas_free()
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*/
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EAPI const char *ecore_evas_engine_name_get(const Ecore_Evas *ee);
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/**
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* @brief Return the Ecore_Evas for this Evas
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*
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* @param e The Evas to get the Ecore_Evas from
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* @return The Ecore_Evas that holds this Evas, or NULL if not held by one.
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*
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* @warning Only use on Evas' created with ecore evas!
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*/
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EAPI Ecore_Evas *ecore_evas_ecore_evas_get(const Evas *e);
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/**
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* @brief Free an Ecore_Evas
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*
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* @param ee The Ecore_Evas to free
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*
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* This frees up any memory used by the Ecore_Evas.
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*/
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EAPI void ecore_evas_free(Ecore_Evas *ee);
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/**
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* @brief Retrieve user data associated with an Ecore_Evas.
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*
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* @param ee The Ecore_Evas to retrieve the user data from.
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* @param key The key which the user data to be retrieved is associated with.
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*
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* This function retrieves user specific data that has been stored within an
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* Ecore_Evas structure with ecore_evas_data_set().
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*
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* @returns NULL on error or no data found, A pointer to the user data on
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* success.
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*
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* @see ecore_evas_data_set()
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*/
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EAPI void *ecore_evas_data_get(const Ecore_Evas *ee, const char *key);
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/**
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* @brief Store user data in an Ecore_Evas structure.
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*
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* @param ee The Ecore_Evas to store the user data in.
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* @param key A unique string to associate the user data against. Cannot
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* be NULL.
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* @param data A pointer to the user data to store.
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*
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* This function associates the @p data with a @p key which is stored by
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* the Ecore_Evas @p ee. Be aware that a call to ecore_evas_free() will
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* not free any memory for the associated user data, this is the responsibility
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* of the caller.
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*
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* @see ecore_evas_callback_pre_free_set()
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* @see ecore_evas_free()
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* @see ecore_evas_data_get()
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*/
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EAPI void ecore_evas_data_set(Ecore_Evas *ee, const char *key, const void *data);
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/**
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* Set a callback for Ecore_Evas resize events.
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@ -476,7 +578,21 @@ EAPI void ecore_evas_alpha_set(Ecore_Evas *ee, Eina_Bool alpha);
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EAPI Eina_Bool ecore_evas_alpha_get(const Ecore_Evas *ee);
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EAPI void ecore_evas_transparent_set(Ecore_Evas *ee, Eina_Bool transparent);
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EAPI Eina_Bool ecore_evas_transparent_get(const Ecore_Evas *ee);
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/**
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* @brief Show an Ecore_Evas' window
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*
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* @param ee The Ecore_Evas to show.
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*
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* This function makes @p ee visible.
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*/
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EAPI void ecore_evas_show(Ecore_Evas *ee);
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/**
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* @brief Hide an Ecore_Evas' window
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*
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* @param ee The Ecore_Evas to hide.
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*
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* This function makes @p ee hidden(not visible).
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*/
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EAPI void ecore_evas_hide(Ecore_Evas *ee);
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EAPI int ecore_evas_visibility_get(const Ecore_Evas *ee);
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EAPI void ecore_evas_raise(Ecore_Evas *ee);
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@ -751,6 +867,15 @@ EAPI Evas_Object *ecore_evas_object_associate_get(const Ecore_Evas *ee);
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/* helper function to be used with ECORE_GETOPT_CALLBACK_*() */
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EAPI unsigned char ecore_getopt_callback_ecore_evas_list_engines(const Ecore_Getopt *parser, const Ecore_Getopt_Desc *desc, const char *str, void *data, Ecore_Getopt_Value *storage);
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/**
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* @brief Get a list of all the ecore_evases.
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*
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* @return A list of ecore_evases.
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*
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* The returned list of ecore evases is only valid until the canvases are
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* destroyed (and should not be cached for instance). The list can be freed by
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* just deleting the list.
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*/
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EAPI Eina_List *ecore_evas_ecore_evas_list_get(void);
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/* specific calls to an x11 environment ecore_evas */
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|
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@ -187,12 +187,6 @@ ecore_evas_engine_type_supported_get(Ecore_Evas_Engine_Type engine)
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};
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}
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/**
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* Init the Evas system.
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* @return greater than 0 on success, 0 on failure
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*
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* Set up the Evas wrapper system. Init Evas and Ecore libraries.
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*/
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EAPI int
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ecore_evas_init(void)
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{
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@ -237,12 +231,6 @@ ecore_evas_init(void)
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return --_ecore_evas_init_count;
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}
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/**
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* Shut down the Evas system.
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* @return 0 if ecore evas is fully shut down, or > 0 if it still needs to be shut down
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*
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* This closes the Evas wrapper system down. Shut down Evas and Ecore libraries.
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*/
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EAPI int
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ecore_evas_shutdown(void)
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{
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@ -693,13 +681,6 @@ static const struct ecore_evas_engine _engines[] = {
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{NULL, NULL}
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};
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/**
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* Returns a list of supported engines names.
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*
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* @return newly allocated list with engines names. Engines names
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* strings are internal and should be considered constants, do not
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* free them, to avoid problems use ecore_evas_engines_free()
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*/
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EAPI Eina_List *
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ecore_evas_engines_get(void)
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{
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@ -712,9 +693,6 @@ ecore_evas_engines_get(void)
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return lst;
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}
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/**
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* Free list returned by ecore_evas_engines_get()
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*/
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EAPI void
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ecore_evas_engines_free(Eina_List *engines)
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{
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|
@ -742,25 +720,6 @@ _ecore_evas_new_auto_discover(int x, int y, int w, int h, const char *extra_opti
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return NULL;
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}
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/**
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* Creates a new Ecore_Evas based on engine name and common parameters.
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*
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* @param engine_name engine name as returned by
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* ecore_evas_engines_get() or NULL to use environment variable
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* ECORE_EVAS_ENGINE, that can be undefined and in this case
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* this call will try to find the first working engine.
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* @param x horizontal position of window (not supported in all engines)
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* @param y vertical position of window (not supported in all engines)
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* @param w width of window
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* @param h height of window
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* @param extra_options string with extra parameter, dependent on engines
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* or NULL. String is usually in the form: 'key1=value1;key2=value2'.
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* Pay attention that when getting that from shell commands, most
|
||||
* consider ';' as the command terminator, so you need to escape
|
||||
* it or use quotes.
|
||||
*
|
||||
* @return Ecore_Evas instance or NULL if creation failed.
|
||||
*/
|
||||
EAPI Ecore_Evas *
|
||||
ecore_evas_new(const char *engine_name, int x, int y, int w, int h, const char *extra_options)
|
||||
{
|
||||
|
@ -788,12 +747,6 @@ ecore_evas_new(const char *engine_name, int x, int y, int w, int h, const char *
|
|||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the engine name used by this engine.
|
||||
*
|
||||
* should return one of the values in ecore_evas_engines_get(), usually
|
||||
* acceptable by ecore_evas_new().
|
||||
*/
|
||||
EAPI const char *
|
||||
ecore_evas_engine_name_get(const Ecore_Evas *ee)
|
||||
{
|
||||
|
@ -802,12 +755,6 @@ ecore_evas_engine_name_get(const Ecore_Evas *ee)
|
|||
return ee->driver;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the Ecore_Evas for this Evas
|
||||
*
|
||||
* @param e The Evas to get the Ecore_Evas from
|
||||
* @return The Ecore_Evas that holds this Evas, or NULL if not hold by one.
|
||||
*/
|
||||
EAPI Ecore_Evas *
|
||||
ecore_evas_ecore_evas_get(const Evas *e)
|
||||
{
|
||||
|
@ -821,12 +768,6 @@ ecore_evas_ecore_evas_get(const Evas *e)
|
|||
return ee;
|
||||
}
|
||||
|
||||
/**
|
||||
* Free an Ecore_Evas
|
||||
* @param ee The Ecore_Evas to free
|
||||
*
|
||||
* This frees up any memory used by the Ecore_Evas.
|
||||
*/
|
||||
EAPI void
|
||||
ecore_evas_free(Ecore_Evas *ee)
|
||||
{
|
||||
|
@ -840,19 +781,6 @@ ecore_evas_free(Ecore_Evas *ee)
|
|||
return;
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieve user data associated with an Ecore_Evas.
|
||||
* @param ee The Ecore_Evas to retrieve the user data from.
|
||||
* @param key The key which the user data to be retrieved is associated with.
|
||||
*
|
||||
* This function retrieves user specific data that has been stored within an
|
||||
* Ecore_Evas structure with ecore_evas_data_set().
|
||||
*
|
||||
* @returns NULL on error or no data found, A pointer to the user data on
|
||||
* success.
|
||||
*
|
||||
* @see ecore_evas_data_set
|
||||
*/
|
||||
EAPI void *
|
||||
ecore_evas_data_get(const Ecore_Evas *ee, const char *key)
|
||||
{
|
||||
|
@ -869,21 +797,6 @@ ecore_evas_data_get(const Ecore_Evas *ee, const char *key)
|
|||
return eina_hash_find(ee->data, key);
|
||||
}
|
||||
|
||||
/**
|
||||
* Store user data in an Ecore_Evas structure.
|
||||
*
|
||||
* @param ee The Ecore_Evas to store the user data in.
|
||||
* @param key A unique string to associate the user data against. Cannot
|
||||
* be NULL.
|
||||
* @param data A pointer to the user data to store.
|
||||
*
|
||||
* This function associates the @p data with a @p key which is stored by
|
||||
* the Ecore_Evas @p ee. Be aware that a call to ecore_evas_free() will
|
||||
* not free any memory for the associated user data, this is the responsibility
|
||||
* of the caller.
|
||||
*
|
||||
* @see ecore_evas_free
|
||||
*/
|
||||
EAPI void
|
||||
ecore_evas_data_set(Ecore_Evas *ee, const char *key, const void *data)
|
||||
{
|
||||
|
@ -1498,12 +1411,6 @@ ecore_evas_transparent_get(const Ecore_Evas *ee)
|
|||
return ee->transparent ? EINA_TRUE : 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Show an Ecore_Evas' window
|
||||
* @param ee The Ecore_Evas to show.
|
||||
*
|
||||
* This function makes @p ee visible.
|
||||
*/
|
||||
EAPI void
|
||||
ecore_evas_show(Ecore_Evas *ee)
|
||||
{
|
||||
|
@ -1517,12 +1424,6 @@ ecore_evas_show(Ecore_Evas *ee)
|
|||
IFE;
|
||||
}
|
||||
|
||||
/**
|
||||
* Hide an Ecore_Evas' window
|
||||
* @param ee The Ecore_Evas to show.
|
||||
*
|
||||
* This function makes @p ee hidden.
|
||||
*/
|
||||
EAPI void
|
||||
ecore_evas_hide(Ecore_Evas *ee)
|
||||
{
|
||||
|
@ -2823,15 +2724,6 @@ _ecore_evas_mouse_multi_up_process(Ecore_Evas *ee, int device,
|
|||
flags, timestamp, NULL);
|
||||
}
|
||||
|
||||
/**
|
||||
* Get a list of all the ecore_evases.
|
||||
*
|
||||
* The returned list of ecore evases is only valid until the canvases are
|
||||
* destroyed (and should not be cached for instance).
|
||||
* The list can be free by just deleting the list.
|
||||
*
|
||||
* @return A list of ecore_evases.
|
||||
*/
|
||||
EAPI Eina_List *
|
||||
ecore_evas_ecore_evas_list_get(void)
|
||||
{
|
||||
|
|
Loading…
Reference in New Issue