Enlightenment CVS committal
Author : technikolor
Project : e17
Module : docs
Dir : e17/docs/cookbook/xml/evas
Modified Files:
evas_key_bindings.xml
Log Message:
EVAS recipe code.
===================================================================
RCS file: /cvsroot/enlightenment/e17/docs/cookbook/xml/evas/evas_key_bindings.xml,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -3 -r1.3 -r1.4
--- evas_key_bindings.xml 4 Jul 2004 19:34:31 -0000 1.3
+++ evas_key_bindings.xml 7 Jul 2004 10:46:33 -0000 1.4
@@ -14,9 +14,108 @@
<title>Recipe: Key Binds, using EVAS Key Events</title>
<para>
-This is my recipe!
+Many applications can benifit from providing key binds for commonly used
+operations. Whether accepting text in ways the EFL doesn't normally expect
+or just a way to bind the + key to raise the volume of a mixer, keybinds
+can add just the bit of functionality that makes your app a hit.
</para>
+<para>
+The following code is a simple and complete application that is useful
+in exploring keybinds using EVAS event callbacks. It creates a black
+100 by 100 pixel window in which you can hit keys.
+</para>
+
+<example>
+<title>Key grabbing using EVAS Events</title>
+<programlisting>
+#include <Ecore_Evas.h>
+#include <Ecore.h>
+
+#define WIDTH 100
+#define HEIGHT 100
+
+ Ecore_Evas * ee;
+ Evas * evas;
+ Evas_Object * base_rect;
+
+
+static int
+main_signal_exit(void *data, int ev_type, void *ev)
+{
+ ecore_main_loop_quit();
+ return 1;
+}
+
+void mouse(void *data, Evas *e, Evas_Object *obj, void *event_info) {
+ Evas_Event_Mouse_Down *ev;
+
+ ev = (Evas_Event_Mouse_Down *)event_info;
+ printf("You pressed button: %d\n", ev->button);
+}
+
+void key_down(void *data, Evas *e, Evas_Object *obj, void *event_info) {
+ Evas_Event_Key_Down *ev;
+
+ ev = (Evas_Event_Key_Down *)event_info;
+ printf("You hit key: %s\n", ev->keyname);
+}
+
+
+void move(void *data, Evas *e, Evas_Object *obj, void *event_info) {
+ printf("Entered callback: mouse move\n");
+}
+
+
+
+int main(){
+ ecore_init();
+ ecore_event_handler_add(ECORE_EVENT_SIGNAL_EXIT,
+ main_signal_exit, NULL);
+
+ ee = ecore_evas_software_x11_new(NULL, 0, 0, 0, WIDTH, HEIGHT);
+ ecore_evas_title_set(ee, "EVAS Callback Test");
+ ecore_evas_borderless_set(ee, 0);
+ ecore_evas_show(ee);
+
+ evas = ecore_evas_get(ee);
+ evas_font_path_append(evas, "data/");
+
+ base_rect = evas_object_rectangle_add(evas);
+ evas_object_resize(base_rect, (double)WIDTH, (double)HEIGHT);
+ evas_object_color_set(base_rect, 0, 0, 0, 255);
+ evas_object_focus_set(base_rect, 1);
+ evas_object_show(base_rect);
+
+ evas_object_event_callback_add(base_rect,
+ EVAS_CALLBACK_MOUSE_DOWN, mouse, NULL);
+ evas_object_event_callback_add(base_rect,
+ EVAS_CALLBACK_MOUSE_MOVE, move, NULL);
+ evas_object_event_callback_add(base_rect,
+ EVAS_CALLBACK_KEY_DOWN, key_down, NULL);
+
+ ecore_main_loop_begin();
+
+ ecore_evas_shutdown();
+ ecore_shutdown();
+
+ return 0;
+}
+</programlisting>
+</example>
+
+<para>
+You can compile this example in the following manner:
+</para>
+
+<example>
+<title>EVAS Keybind Compile</title>
+<programlisting>
+gcc `evas-config --libs --cflags` `ecore-config --libs --cflags` \
+> key_test.c -o key_test
+</programlisting>
+</example>
+
</section>
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