Added evas-clipping example

Ranamed to vg convention

Change-Id: I06789e46d82fc49399f068169de57c843cdd022c

diff --git a/src/examples/evas/evas-vg-clipping.c b/src/examples/evas/evas-vg-clipping.c
new file mode 100644 (file)
index 0000000..c67ceb7
--- /dev/null
+++ b/src/examples/evas/evas-vg-clipping.c
@@ -0,0 +1,152 @@
+/**
+ * gcc -o evas-vg-clipping evas-vg-clipping.c `pkg-config --libs --cflags ecore ecore-evas`
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#else
+#define PACKAGE_EXAMPLES_DIR "."
+#endif
+
+#define WIDTH  400
+#define HEIGHT 400
+
+#include <Ecore.h>
+#include <Ecore_Evas.h>
+
+struct content
+{
+   Ecore_Evas *ee;
+   Evas *ev;
+   Evas_Object *bg;
+   Evas_Object *vg;
+   Efl_VG *shapes[2];
+};
+static struct content cnt;
+static uint8_t shapeid = 1;
+
+static void
+_on_delete(Ecore_Evas *ee EINA_UNUSED)
+{
+   ecore_main_loop_quit();
+}
+
+static void
+_canvas_resize_cb(Ecore_Evas *ee)
+{
+   int w, h;
+
+   ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
+   evas_object_resize(cnt.bg, w, h);
+   evas_object_resize(cnt.vg, w, h);
+}
+
+static void
+_on_keydown(void *data EINA_UNUSED, Evas *evas EINA_UNUSED, Evas_Object *o, void *einfo)
+{
+   Evas_Event_Key_Down *ei = einfo;
+   if (*ei->key == 'q')
+     {
+        _on_delete(cnt.ee);
+     }
+
+   if (*ei->key == 'a')
+     {
+        int r, g, b, a;
+        evas_vg_node_color_get(cnt.shapes[shapeid], &r, &g, &b, &a);
+
+        evas_color_argb_unpremul(a, &r, &g, &b);
+
+        a = (a + 50) & 0xff;
+        if (a > 240) a = 255;
+        if (a < 20) a = 0;
+
+        printf("Object #%d alpha chnnel was set to %d, rgb:%d/%d/%d\n", shapeid, a, r, g, b);
+
+        evas_color_argb_premul(a, &r, &g, &b);
+
+        evas_vg_node_color_set(cnt.shapes[shapeid], r, g, b, a);
+     }
+
+   if (*ei->key == 's')
+     {
+        shapeid = (shapeid + 1) % 2;
+        printf("Active object switched to #%d\n", shapeid);
+     }
+
+   if (strcmp(ei->key, "Left") == 0)
+     {
+        double x, y;
+        evas_vg_node_origin_get(cnt.shapes[shapeid], &x, &y);
+        x -= 100;
+        if (x < -100) x = -100;
+        evas_vg_node_origin_set(cnt.shapes[shapeid], x, y);
+        printf("Active object #%d moved left\n", shapeid);
+     }
+   else if (strcmp(ei->key, "Right") == 0)
+     {
+        double x, y;
+        evas_vg_node_origin_get(cnt.shapes[shapeid], &x, &y);
+        x += 100;
+        if (x > 100) x = 100;
+        evas_vg_node_origin_set(cnt.shapes[shapeid], x, y);
+        printf("Active object #%d moved left\n", shapeid);
+     }
+}
+
+int main(void)
+{
+   Efl_VG *container = NULL;
+
+   if (!ecore_evas_init())
+      return EXIT_FAILURE;
+
+   cnt.ee = ecore_evas_new(NULL, 0, 0, WIDTH, HEIGHT, NULL);
+   if (!cnt.ee)
+     {
+        ecore_evas_shutdown();
+        return -1;
+     }
+
+   ecore_evas_callback_delete_request_set(cnt.ee, _on_delete);
+   ecore_evas_callback_resize_set(cnt.ee, _canvas_resize_cb);
+   ecore_evas_show(cnt.ee);
+
+   cnt.ev = ecore_evas_get(cnt.ee);
+   cnt.bg = evas_object_rectangle_add(cnt.ev);
+   evas_object_color_set(cnt.bg, 255, 255, 255, 255);
+   evas_object_focus_set(cnt.bg, EINA_TRUE);
+   evas_object_show(cnt.bg);
+
+   evas_object_event_callback_add(cnt.bg, EVAS_CALLBACK_KEY_DOWN,
+         _on_keydown, NULL);
+
+   cnt.vg = evas_object_vg_add(cnt.ev);
+   evas_object_show(cnt.vg);
+
+   _canvas_resize_cb(cnt.ee);
+
+   container = evas_vg_container_add(cnt.vg);
+
+   Efl_VG *back = evas_vg_shape_add(container);
+   evas_vg_shape_append_rect(back, 150, 150, 100, 100, 0, 0);
+   evas_vg_node_color_set(back, 0x00, 0xba, 0xcc, 255);
+   cnt.shapes[0] = back;
+
+   Efl_VG *front = evas_vg_shape_add(container);
+   evas_vg_shape_append_rect(front, 100, 100, 200, 200, 0, 0);
+   evas_vg_node_color_set(front, 0xfa, 0xa0, 0xcc, 255);
+   cnt.shapes[1] = front;
+
+   printf("Evas clipping test example\n");
+   printf("'a' to change alpha value\n");
+   printf("'s' to switch active object\n");
+   printf("left/right to move object\n");
+   printf("'q' to quit\n");
+
+   evas_object_vg_root_node_set(cnt.vg, container);
+   ecore_main_loop_begin();
+   ecore_evas_shutdown();
+
+   return 0;
+}

diff --git a/src/examples/evas/meson.build b/src/examples/evas/meson.build
index 2209019..2e54f7a 100644 (file)
--- a/src/examples/evas/meson.build
+++ b/src/examples/evas/meson.build
@@ -42,6 +42,7 @@ examples = [
   'efl-canvas-animation',
   'efl-canvas-vg-simple',
   'evas-vg-circles',
+  'evas-vg-clipping',
   'evas-vg-dash',
   'evas-vg-dup',
   'evas-vg-line',