forked from enlightenment/efl
156 lines
3.8 KiB
C
156 lines
3.8 KiB
C
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/**
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* Simple Edje example illustrating drag functions.
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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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* edje_cc drag.edc && gcc -o drag-box drag-box.c `pkg-config --libs --cflags evas ecore ecore-evas edje`
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* @endverbatim
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#else
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#define PACKAGE_EXAMPLES_DIR "."
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#define __UNUSED__
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#endif
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#include <Ecore.h>
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#include <Ecore_Evas.h>
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#include <Edje.h>
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#define WIDTH 300
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#define HEIGHT 300
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#define RECTW 30
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#define RECTH 30
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#define NRECTS 20
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static const char *PARTNAME = "example/knob";
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static const char *edje_file_path = PACKAGE_EXAMPLES_DIR "/drag.edj";
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struct _App {
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Ecore_Evas *ee;
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Evas_Object *edje;
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Evas_Object *bg;
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};
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static void
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_on_destroy(Ecore_Evas *ee __UNUSED__)
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{
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ecore_main_loop_quit();
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}
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/* here just to keep our example's window size and background image's
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* size in synchrony */
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static void
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_canvas_resize_cb(Ecore_Evas *ee)
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{
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int w, h;
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struct _App *app = ecore_evas_data_get(ee, "app");
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ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
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evas_object_resize(app->bg, w, h);
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evas_object_resize(app->edje, w, h);
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}
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static void
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_bg_key_down(void *data, Evas *e, Evas_Object *o __UNUSED__, void *event_info)
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{
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struct _App *app = data;
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Evas_Event_Key_Down *ev = event_info;
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Evas_Object *rect;
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Eina_Bool r;
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if (!strcmp(ev->keyname, "Down"))
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{
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edje_object_part_drag_step(app->edje, PARTNAME, 0, 1.0);
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}
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else if (!strcmp(ev->keyname, "Up"))
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{
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edje_object_part_drag_step(app->edje, PARTNAME, 0, -1.0);
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}
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else if (!strcmp(ev->keyname, "m"))
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{
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edje_object_part_drag_value_set(app->edje, PARTNAME, 0.0, 0.5);
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}
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else if (!strcmp(ev->keyname, "Prior"))
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{
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edje_object_part_drag_page(app->edje, PARTNAME, 0.0, -1.0);
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}
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else if (!strcmp(ev->keyname, "Next"))
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{
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edje_object_part_drag_page(app->edje, PARTNAME, 0.0, 1.0);
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}
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else if (!strcmp(ev->keyname, "Escape"))
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ecore_main_loop_quit();
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else
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printf("unhandled key: %s\n", ev->keyname);
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}
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static void
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_knob_moved_cb(void *data, Evas_Object *o, const char *emission, const char *source)
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{
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double val;
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edje_object_part_drag_value_get(o, PARTNAME, NULL, &val);
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printf("value changed to: %0.3f\n", val);
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}
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int
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main(void)
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{
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Evas *evas;
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struct _App app;
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int i;
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ecore_evas_init();
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edje_init();
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/* this will give you a window with an Evas canvas under the first
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* engine available */
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app.ee = ecore_evas_new(NULL, 0, 0, WIDTH, HEIGHT, NULL);
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ecore_evas_callback_destroy_set(app.ee, _on_destroy);
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ecore_evas_callback_resize_set(app.ee, _canvas_resize_cb);
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ecore_evas_title_set(app.ee, "Edje Box Example");
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ecore_evas_show(app.ee);
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ecore_evas_data_set(app.ee, "app", &app);
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evas = ecore_evas_get(app.ee);
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app.bg = evas_object_rectangle_add(evas);
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evas_object_color_set(app.bg, 255, 255, 255, 255);
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evas_object_resize(app.bg, WIDTH, HEIGHT);
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evas_object_focus_set(app.bg, EINA_TRUE);
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evas_object_show(app.bg);
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evas_object_event_callback_add(app.bg, EVAS_CALLBACK_KEY_DOWN, _bg_key_down, &app);
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app.edje = edje_object_add(evas);
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edje_object_file_set(app.edje, edje_file_path, "example/group");
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evas_object_move(app.edje, 0, 0);
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evas_object_resize(app.edje, WIDTH, HEIGHT);
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evas_object_show(app.edje);
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if (!edje_object_part_drag_step_set(app.edje, PARTNAME, 0.0, 0.1))
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printf("error when setting drag step size.\n");
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if (!edje_object_part_drag_page_set(app.edje, PARTNAME, 0.0, 0.3))
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printf("error when setting drag page step size.\n");
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edje_object_signal_callback_add(app.edje, "drag", PARTNAME, _knob_moved_cb, &app);
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ecore_main_loop_begin();
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ecore_evas_free(app.ee);
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ecore_evas_shutdown();
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edje_shutdown();
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return 0;
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}
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