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examples/unsorted/evas/evas-vg-simple.c

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/**
* Example of basic nodes in Evas_VG.
*
* You'll need at least one engine built for it (excluding the buffer
* one). See stdout/stderr for output.
*
* @verbatim
* gcc -o evas_vg_simple evas-vg-simple.c `pkg-config --libs --cflags evas ecore ecore-evas eina ector eo efl` -lm
* @endverbatim
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#else
#define PACKAGE_EXAMPLES_DIR "."
#endif
#define WIDTH 600
#define HEIGHT 600
#ifndef EFL_BETA_API_SUPPORT
#define EFL_BETA_API_SUPPORT
#endif
#ifndef EFL_EO_API_SUPPORT
#define EFL_EO_API_SUPPORT
#endif
#include <Eo.h>
#include <Efl.h>
#include <Evas.h>
#include <Ecore.h>
#include <Ecore_Evas.h>
#include <Eina.h>
struct example_data
{
Ecore_Evas *ee;
Evas *evas;
Evas_Object *bg;
Evas_Object *vg;
Eina_List *shape_list;
};
static struct example_data d;
Ecore_Animator *animator;
static const char *batman = "M 256,213 C 245,181 206,187 234,262 147,181 169,71.2 233,18 220,56 235,81 283,88 285,78.7 286,69.3 288,60 289,61.3 290,62.7 291,64 291,64 297,63 300,63 303,63 309,64 309,64 310,62.7 311,61.3 312,60 314,69.3 315,78.7 317,88 365,82 380,56 367,18 431,71 453,181 366,262 394,187 356,181 344,213 328,185 309,184 300,284 291,184 272,185 256,213 Z";
static const char *morph1[2] = {"M 0,0 L 0,0 L 100,0 L 100,0 L 100,100 L 100,100 L 0,100 L 0,100 L 0,0",
"M 0,0 L 50,-80 L 100,0 L 180,50 L 100,100 L 50,180 L 0,100 L -80,50 L 0,0"};
static void _main_menu();
static void _main_menu_key_handle(void *data, Evas *evas, Evas_Object *o, void *einfo);
static const char *main_menu = \
"Main Menu:\n"
"\t1 - Basic Shape test\n"
"\t2 - Interpolation\n"
"\te - Exit\n"
"\th - print help\n";
static const char *basic_shape_menu = \
"Basic Shape Menu:\n"
"\tup - Increase Stroke Width by 0.5\n"
"\tdown - Decrease Stroke Width by 0.5\n"
"\tr - +10 degree rotation\n"
"\tR - -10 degree rotation\n"
"\ts - +(.1, .1) scale\n"
"\tS - -(.1, .1) scale\n"
"\tt - +(10,10) translation\n"
"\tT - +(10,10) translation\n"
"\td - Reset path data\n"
"\te - Exit\n"
"\tb - Back to Main Menu\n"
"\th - print help\n";
static const char *interpolation_menu = \
"Interpolation Menu:\n"
"\te - Exit\n"
"\tb - Back to Main Menu\n"
"\th - print help\n";
static void
_on_delete(Ecore_Evas *ee EINA_UNUSED)
{
if (animator) ecore_animator_del(animator);
ecore_main_loop_quit();
}
static void /* adjust canvas' contents on resizes */
_canvas_resize_cb(Ecore_Evas *ee)
{
int w, h;
ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
evas_object_resize(d.bg, w, h);
evas_object_resize(d.vg, w, h);
}
static void
reset_test()
{
if(d.vg) evas_object_del(d.vg);
d.shape_list = eina_list_free(d.shape_list);
d.vg = evas_object_vg_add(d.evas);
evas_object_show(d.vg);
evas_object_focus_set(d.vg, 1);
_canvas_resize_cb(d.ee);
}
// 2.Basic shape Test Case START
static void
_added_transformation(Efl_VG *shape, Eina_Matrix3 *m)
{
Eina_Matrix3 new_m;
const Eina_Matrix3 *old_m;
old_m = evas_vg_node_transformation_get(shape);
if (old_m)
{
eina_matrix3_compose(m, old_m, &new_m);
evas_vg_node_transformation_set(shape, &new_m);
}
else
{
evas_vg_node_transformation_set(shape, m);
}
}
static void
_basic_shape_key_handle(void *data EINA_UNUSED,
Evas *evas EINA_UNUSED,
Evas_Object *o EINA_UNUSED,
void *einfo)
{
Evas_Event_Key_Down *ev = einfo;
Efl_VG *shape;
Eina_List *l;
Eina_Matrix3 m;
double stroke_w;
if (strcmp(ev->key, "h") == 0) /* print help */
{
puts(basic_shape_menu);
return;
}
if (strcmp(ev->key, "e") == 0)
{
_on_delete(d.ee);
return;
}
if (strcmp(ev->key, "b") == 0)
{
_main_menu();
return;
}
if (strcmp(ev->key, "Up") == 0)
{
EINA_LIST_FOREACH(d.shape_list, l, shape)
{
stroke_w = evas_vg_shape_stroke_width_get(shape);
evas_vg_shape_stroke_width_set(shape, stroke_w + 0.5);
}
return;
}
if (strcmp(ev->key, "Down") == 0)
{
EINA_LIST_FOREACH(d.shape_list, l, shape)
{
stroke_w = evas_vg_shape_stroke_width_get(shape);
if (stroke_w <= 0.5) stroke_w = 1;
evas_vg_shape_stroke_width_set(shape, stroke_w - 0.5);
}
return;
}
if (strcmp(ev->key, "r") == 0)
{
eina_matrix3_identity(&m);
eina_matrix3_rotate(&m, 10.0 * 2 * 3.141 / 360.0);
EINA_LIST_FOREACH(d.shape_list, l, shape)
{
_added_transformation(shape, &m);
}
return;
}
if (strcmp(ev->key, "R") == 0)
{
eina_matrix3_identity(&m);
eina_matrix3_rotate(&m, -10.0 * 2 * 3.141 / 360.0);
EINA_LIST_FOREACH(d.shape_list, l, shape)
{
_added_transformation(shape, &m);
}
return;
}
if (strcmp(ev->key, "s") == 0)
{
eina_matrix3_identity(&m);
eina_matrix3_scale(&m, 1.1, 1.1);
EINA_LIST_FOREACH(d.shape_list, l, shape)
{
_added_transformation(shape, &m);
}
return;
}
if (strcmp(ev->key, "S") == 0)
{
eina_matrix3_identity(&m);
eina_matrix3_scale(&m, .9, .9);
EINA_LIST_FOREACH(d.shape_list, l, shape)
{
_added_transformation(shape, &m);
}
return;
}
if (strcmp(ev->key, "t") == 0)
{
eina_matrix3_identity(&m);
eina_matrix3_translate(&m, 10, 10);
EINA_LIST_FOREACH(d.shape_list, l, shape)
{
_added_transformation(shape, &m);
}
return;
}
if (strcmp(ev->key, "T") == 0)
{
eina_matrix3_identity(&m);
eina_matrix3_translate(&m, -10, -10);
EINA_LIST_FOREACH(d.shape_list, l, shape)
{
_added_transformation(shape, &m);
}
return;
}
if (strcmp(ev->key, "d") == 0)
{
EINA_LIST_FOREACH(d.shape_list, l, shape)
{
evas_vg_shape_reset(shape);
}
return;
}
}
static void
_1_basic_shape_test()
{
Efl_VG *container, *shape, *new_shape;
reset_test();
evas_object_event_callback_add(d.vg, EVAS_CALLBACK_KEY_DOWN, _basic_shape_key_handle, NULL);
puts(basic_shape_menu);
container = evas_vg_container_add(evas_object_vg_root_node_get(d.vg));
// Line
shape = evas_vg_shape_add(container);
evas_vg_shape_append_move_to(shape, 0, 0);
evas_vg_shape_append_line_to(shape, 100, 0);
evas_vg_shape_stroke_color_set(shape, 255, 0, 0, 255);
evas_vg_shape_stroke_width_set(shape, 5);
evas_vg_node_origin_set(shape, 50, 50);
evas_vg_shape_stroke_cap_set(shape, EFL_GFX_CAP_ROUND);
d.shape_list = eina_list_append(d.shape_list, shape);
new_shape = evas_vg_shape_add(container);
evas_vg_shape_dup(new_shape, shape);
evas_vg_shape_stroke_color_set(new_shape, 0, 100, 0, 100);
evas_vg_shape_append_line_to(new_shape, 100, 50);
evas_vg_node_origin_set(new_shape, 200, 50);
evas_vg_shape_stroke_cap_set(new_shape, EFL_GFX_CAP_SQUARE);
d.shape_list = eina_list_append(d.shape_list, new_shape);
new_shape = evas_vg_shape_add(container);
evas_vg_shape_dup(new_shape, shape);
evas_vg_shape_stroke_color_set(new_shape, 0, 0, 255, 255);
evas_vg_shape_append_line_to(new_shape, 50, 50);
evas_vg_node_origin_set(new_shape, 350, 50);
evas_vg_shape_stroke_cap_set(new_shape, EFL_GFX_CAP_ROUND);
evas_vg_shape_stroke_join_set(new_shape, EFL_GFX_JOIN_ROUND);
d.shape_list = eina_list_append(d.shape_list, new_shape);
// Rect
shape = evas_vg_shape_add(container);
evas_vg_shape_append_rect(shape, 0, 0, 100 , 100, 10, 10);
evas_vg_shape_stroke_color_set(shape, 255, 0, 0, 255);
evas_vg_shape_stroke_width_set(shape, 5);
evas_vg_node_origin_set(shape, 50, 150);
d.shape_list = eina_list_append(d.shape_list, shape);
new_shape = evas_vg_shape_add(container);
evas_vg_shape_dup(new_shape, shape);
evas_vg_shape_stroke_color_set(new_shape, 0, 0, 0, 0);
evas_vg_node_color_set(new_shape, 0, 0, 100, 100);
evas_vg_node_origin_set(new_shape, 200, 150);
d.shape_list = eina_list_append(d.shape_list, new_shape);
new_shape = evas_vg_shape_add(container);
evas_vg_shape_dup(new_shape, shape);
evas_vg_shape_stroke_color_set(new_shape, 100, 0, 0, 100);
evas_vg_node_color_set(new_shape, 0, 100, 100, 100);
evas_vg_node_origin_set(new_shape, 350, 150);
d.shape_list = eina_list_append(d.shape_list, new_shape);
// Circle
shape = evas_vg_shape_add(container);
evas_vg_shape_append_circle(shape, 50, 50, 50);
evas_vg_shape_stroke_color_set(shape, 255, 0, 0, 255);
evas_vg_shape_stroke_width_set(shape, 5);
evas_vg_node_origin_set(shape, 50, 300);
d.shape_list = eina_list_append(d.shape_list, shape);
new_shape = evas_vg_shape_add(container);
evas_vg_shape_dup(new_shape, shape);
evas_vg_shape_stroke_color_set(new_shape, 0, 0, 0, 0);
evas_vg_node_color_set(new_shape, 0, 0, 255, 255);
evas_vg_node_origin_set(new_shape, 200, 300);
d.shape_list = eina_list_append(d.shape_list, new_shape);
new_shape = evas_vg_shape_add(container);
evas_vg_shape_dup(new_shape, shape);
evas_vg_shape_stroke_color_set(new_shape, 150, 0, 0, 150);
evas_vg_node_color_set(new_shape, 0, 0, 200, 200);
evas_vg_node_origin_set(new_shape, 350, 300);
d.shape_list = eina_list_append(d.shape_list, new_shape);
// Arc
shape = evas_vg_shape_add(container);
evas_vg_shape_append_arc(shape, 0, 0, 100, 100, 45, -200);
evas_vg_shape_append_line_to(shape, 50, 50);
evas_vg_shape_stroke_cap_set(shape, EFL_GFX_CAP_ROUND);
evas_vg_shape_stroke_color_set(shape, 255, 0, 0, 255);
evas_vg_shape_stroke_width_set(shape, 5);
evas_vg_node_origin_set(shape, 50, 450);
d.shape_list = eina_list_append(d.shape_list, shape);
new_shape = evas_vg_shape_add(container);
evas_vg_shape_append_arc(new_shape, 0, 0, 100, 100, 90, 200);
evas_vg_shape_stroke_color_set(new_shape, 0, 0, 0, 0);
evas_vg_node_color_set(new_shape, 0, 0, 200, 200);
evas_vg_node_origin_set(new_shape, 200, 450);
d.shape_list = eina_list_append(d.shape_list, new_shape);
new_shape = evas_vg_shape_add(container);
evas_vg_shape_append_arc(new_shape, 0, 0, 100, 100, 90, 200);
evas_vg_shape_append_line_to(new_shape, 50, 50);
evas_vg_shape_stroke_color_set(new_shape, 0, 0, 0, 0);
evas_vg_node_color_set(new_shape, 0, 0, 200, 200);
evas_vg_node_origin_set(new_shape, 350, 450);
d.shape_list = eina_list_append(d.shape_list, new_shape);
}
// 2.Basic shape Test Case END
// 2.Interpolation Test Case START
static void
_interpolation_key_handle(void *data EINA_UNUSED,
Evas *evas EINA_UNUSED,
Evas_Object *o EINA_UNUSED,
void *einfo)
{
Evas_Event_Key_Down *ev = einfo;
if (strcmp(ev->key, "h") == 0) /* print help */
{
puts(basic_shape_menu);
return;
}
if (strcmp(ev->key, "e") == 0) /* print help */
{
_on_delete(d.ee);
return;
}
if (strcmp(ev->key, "b") == 0) /* print help */
{
_main_menu();
return;
}
}
static int anim_index = 0;
static Eina_Bool
_interpolation_keyframe(void *data EINA_UNUSED, double pos)
{
int next = (anim_index == 1) ? 0 : 1;
evas_vg_shape_reset(eina_list_nth(d.shape_list, 2));
evas_vg_shape_interpolate(eina_list_nth(d.shape_list, 2),
eina_list_nth(d.shape_list, anim_index),
eina_list_nth(d.shape_list, next),
ecore_animator_pos_map(pos, ECORE_POS_MAP_SINUSOIDAL, 0.0, 0.0));
if (pos == 1.0)
{
anim_index = (anim_index == 1) ? 0 : 1;
animator = ecore_animator_timeline_add(1, _interpolation_keyframe, NULL);
}
return EINA_TRUE;
}
static void
_2_interpolation_test()
{
anim_index = 0;
Efl_VG *shape;
reset_test();
evas_object_event_callback_add(d.vg, EVAS_CALLBACK_KEY_DOWN, _interpolation_key_handle, NULL);
animator = ecore_animator_timeline_add(1, _interpolation_keyframe, NULL);
puts(interpolation_menu);
shape = evas_vg_shape_add(NULL);
evas_vg_shape_append_svg_path(shape, morph1[0]);
evas_vg_shape_stroke_color_set(shape, 255, 0, 0, 255);
evas_vg_shape_stroke_width_set(shape, 5);
evas_vg_node_origin_set(shape, 100, 100);
d.shape_list = eina_list_append(d.shape_list, shape);
shape = evas_vg_shape_add(NULL);
evas_vg_shape_append_svg_path(shape, morph1[1]);
evas_vg_shape_stroke_color_set(shape, 0, 0, 255, 255);
evas_vg_shape_stroke_width_set(shape, 10);
evas_vg_node_origin_set(shape, 150, 150);
d.shape_list = eina_list_append(d.shape_list, shape);
shape = evas_vg_shape_add(evas_object_vg_root_node_get(d.vg));
evas_vg_node_origin_set(shape, 150, 150);
d.shape_list = eina_list_append(d.shape_list, shape);
}
// 2.Interpolation Test Case END
// Main Menu START
static void
_main_menu()
{
Efl_VG *shape;
if (animator) ecore_animator_del(animator);
animator = NULL;
if(d.vg) evas_object_del(d.vg);
if(d.bg) evas_object_del(d.bg);
d.bg = evas_object_rectangle_add(d.evas);
evas_object_color_set(d.bg, 255, 255, 255, 255);
evas_object_focus_set(d.bg, 1);
evas_object_show(d.bg);
evas_object_event_callback_add(d.bg, EVAS_CALLBACK_KEY_DOWN, _main_menu_key_handle, NULL);
// create the initial screen
d.vg = evas_object_vg_add(d.evas);
evas_object_show(d.vg);
shape = evas_vg_shape_add(evas_object_vg_root_node_get(d.vg));
evas_vg_shape_append_svg_path(shape, batman);
evas_vg_node_color_set(shape, 10, 0, 0, 10);
evas_vg_node_origin_set(shape, 0, 100);
_canvas_resize_cb(d.ee);
puts(main_menu);
}
static void
_main_menu_key_handle(void *data EINA_UNUSED,
Evas *evas EINA_UNUSED,
Evas_Object *o EINA_UNUSED,
void *einfo)
{
Evas_Event_Key_Down *ev = einfo;
if (strcmp(ev->key, "h") == 0)
{
puts(main_menu);
return;
}
if (strcmp(ev->key, "e") == 0)
{
_on_delete(d.ee);
return;
}
if (strcmp(ev->key, "1") == 0)
{
_1_basic_shape_test();
return;
}
if (strcmp(ev->key, "2") == 0)
{
_2_interpolation_test();
return;
}
}
// Main Menu END
int
main(void)
{
if (!ecore_evas_init())
return EXIT_FAILURE;
/* this will give you a window with an Evas canvas under the first
* engine available */
d.ee = ecore_evas_new(NULL, 0, 0, WIDTH, HEIGHT, NULL);
if (!d.ee)
goto error;
ecore_evas_callback_delete_request_set(d.ee, _on_delete);
ecore_evas_callback_resize_set(d.ee, _canvas_resize_cb);
ecore_evas_show(d.ee);
d.evas = ecore_evas_get(d.ee);
_main_menu();
ecore_main_loop_begin();
ecore_evas_shutdown();
return 0;
error:
ecore_evas_shutdown();
return -1;
}
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