1 files changed, 201 insertions, 0 deletions

diff --git a/libraries/edje/src/examples/edje-perspective.c b/libraries/edje/src/examples/edje-perspective.c
new file mode 100644
index 0000000..5220b74
--- /dev/null
+++ b/libraries/edje/src/examples/edje-perspective.c
@@ -0,0 +1,201 @@
+/**
+ * Simple Edje example illustrating drag functions.
+ *
+ * You'll need at least one Evas engine built for it (excluding the
+ * buffer one). See stdout/stderr for output.
+ *
+ * @verbatim
+ * edje_cc drag.edc && gcc -o drag-box drag-box.c `pkg-config --libs --cflags evas ecore ecore-evas edje`
+ * @endverbatim
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#else
+#define PACKAGE_EXAMPLES_DIR "."
+#define __UNUSED__
+#endif
+
+#include <Ecore.h>
+#include <Ecore_Evas.h>
+#include <Edje.h>
+
+#define WIDTH  480
+#define HEIGHT 320
+
+static const char *edje_file_path = PACKAGE_EXAMPLES_DIR "/perspective.edj";
+
+struct _App {
+    Ecore_Evas *ee;
+    Evas_Object *edje;
+    Evas_Object *bg;
+    Edje_Perspective *ps;
+    Eina_Bool animating;
+    int x, y; // relative position of part in the screen
+    int focal;
+};
+
+static void
+_on_destroy(Ecore_Evas *ee __UNUSED__)
+{
+   ecore_main_loop_quit();
+}
+
+/* here just to keep our example's window size and background image's
+ * size in synchrony */
+static void
+_canvas_resize_cb(Ecore_Evas *ee)
+{
+   int w, h;
+   struct _App *app = ecore_evas_data_get(ee, "app");
+
+   ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
+   evas_object_resize(app->bg, w, h);
+   evas_object_resize(app->edje, w, h);
+}
+
+static void
+_part_move(struct _App *app, int dx, int dy)
+{
+   char emission[64];
+
+   if (app->animating)
+     return;
+
+   app->x += dx;
+   app->y += dy;
+   if (app->x > 1)
+     app->x = 1;
+   if (app->x < 0)
+     app->x = 0;
+   if (app->y > 1)
+     app->y = 1;
+   if (app->y < 0)
+     app->y = 0;
+
+   snprintf(emission, sizeof(emission), "move,%d,%d", app->x, app->y);
+   edje_object_signal_emit(app->edje, emission, "");
+   app->animating = EINA_TRUE;
+}
+
+
+static void
+_bg_key_down(void *data, Evas *e, Evas_Object *o __UNUSED__, void *event_info)
+{
+   struct _App *app = data;
+   Evas_Event_Key_Down *ev = event_info;
+
+
+   // just moving the part and text
+   if (!strcmp(ev->keyname, "Down"))
+     {
+        _part_move(app, 0, 1);
+     }
+   else if (!strcmp(ev->keyname, "Up"))
+     {
+        _part_move(app, 0, -1);
+     }
+   else if (!strcmp(ev->keyname, "Left"))
+     {
+        _part_move(app, -1, 0);
+     }
+   else if (!strcmp(ev->keyname, "Right"))
+     {
+        _part_move(app, 1, 0);
+     }
+   else if (!strcmp(ev->keyname, "Prior"))
+     {
+        _part_move(app, -1, -1);
+     }
+   else if (!strcmp(ev->keyname, "Next"))
+     {
+        _part_move(app, 1, 1);
+     }
+   // adjusting the perspective focal point distance
+   else if (!strcmp(ev->keyname, "KP_Add"))
+     {
+        app->focal += 5;
+        edje_perspective_set(app->ps, 240, 160, 0, app->focal);
+        edje_object_calc_force(app->edje);
+     }
+   else if (!strcmp(ev->keyname, "KP_Subtract"))
+     {
+        app->focal -= 5;
+        if (app->focal < 5)
+          app->focal = 5;
+
+        edje_perspective_set(app->ps, 240, 160, 0, app->focal);
+        edje_object_calc_force(app->edje);
+     }
+   // exiting
+   else if (!strcmp(ev->keyname, "Escape"))
+     ecore_main_loop_quit();
+   else
+     printf("unhandled key: %s\n", ev->keyname);
+}
+
+static void
+_animation_end_cb(void *data, Evas_Object *o __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
+{
+   struct _App *app = data;
+
+   app->animating = EINA_FALSE;
+}
+
+int
+main(void)
+{
+   Evas *evas;
+   struct _App app;
+   int i;
+
+   ecore_evas_init();
+   edje_init();
+
+   edje_frametime_set(((double)1) / 60);
+
+   /* this will give you a window with an Evas canvas under the first
+    * engine available */
+   app.animating = EINA_FALSE;
+   app.x = 0;
+   app.y = 0;
+   app.focal = 50;
+   app.ee = ecore_evas_new(NULL, 0, 0, WIDTH, HEIGHT, NULL);
+
+   ecore_evas_callback_destroy_set(app.ee, _on_destroy);
+   ecore_evas_callback_resize_set(app.ee, _canvas_resize_cb);
+   ecore_evas_title_set(app.ee, "Edje Box Example");
+   ecore_evas_show(app.ee);
+
+   ecore_evas_data_set(app.ee, "app", &app);
+
+   evas = ecore_evas_get(app.ee);
+
+   app.bg = evas_object_rectangle_add(evas);
+   evas_object_color_set(app.bg, 255, 255, 255, 255);
+   evas_object_resize(app.bg, WIDTH, HEIGHT);
+   evas_object_focus_set(app.bg, EINA_TRUE);
+   evas_object_show(app.bg);
+
+   evas_object_event_callback_add(app.bg, EVAS_CALLBACK_KEY_DOWN, _bg_key_down, &app);
+
+   app.edje = edje_object_add(evas);
+
+   edje_object_file_set(app.edje, edje_file_path, "example/group");
+   evas_object_move(app.edje, 0, 0);
+   evas_object_resize(app.edje, WIDTH, HEIGHT);
+   evas_object_show(app.edje);
+
+   edje_object_signal_callback_add(app.edje, "animation,end", "", _animation_end_cb, &app);
+
+   app.ps = edje_perspective_new(evas);
+   edje_perspective_set(app.ps, 240, 160, 0, app.focal);
+   edje_perspective_global_set(app.ps, EINA_TRUE);
+
+   ecore_main_loop_begin();
+
+   ecore_evas_free(app.ee);
+   ecore_evas_shutdown();
+   edje_shutdown();
+   return 0;
+}