239 lines
6.7 KiB
C
239 lines
6.7 KiB
C
/**
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* Simple Edje example illustrating the very basic functions of the
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* library
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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 basic.edc && gcc -o edje-basic edje-basic.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 EINA_UNUSED
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#endif
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#ifndef PACKAGE_DATA_DIR
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#define PACKAGE_DATA_DIR "."
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#endif
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#include <stdio.h>
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#include <Eina.h>
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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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static const char commands[] = \
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"commands are:\n"
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"\ts - change Edje's global scaling factor\n"
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"\tr - change center rectangle's scaling factor\n"
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"\tEsc - exit\n"
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"\th - print help\n";
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static void
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_on_keydown(void *data,
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Evas *evas EINA_UNUSED,
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Evas_Object *o EINA_UNUSED,
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void *einfo)
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{
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Evas_Event_Key_Down *ev;
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Evas_Object *edje_obj;
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ev = (Evas_Event_Key_Down *)einfo;
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edje_obj = (Evas_Object *)data;
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if (strcmp(ev->key, "h") == 0) /* print help */
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{
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printf(commands);
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return;
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}
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else if (strcmp(ev->key, "s") == 0) /* global scaling factor */
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{
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double scale = edje_scale_get();
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printf("got scale %f\n", scale);
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if (scale != 1.0) scale = 1.0;
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else scale = 2.0;
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edje_scale_set(scale);
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printf("Setting global scaling factor to %f.\n", scale);
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return;
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}
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else if (strcmp(ev->key, "r") == 0) /* individual scaling factor */
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{
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double scale = edje_object_scale_get(edje_obj);
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printf("got scale %f\n", scale);
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if (!scale) scale = 1.0;
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else if (scale == 1.0) scale = 2.0;
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else scale = 0.0;
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edje_object_scale_set(edje_obj, scale);
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printf("Setting center rectangle's scaling factor to %f.\n",
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scale);
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return;
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}
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else if (!strcmp(ev->key, "Escape"))
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ecore_main_loop_quit();
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else
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{
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printf("unhandled key: %s\n", ev->key);
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printf(commands);
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}
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}
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static void
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_on_delete(Ecore_Evas *ee EINA_UNUSED)
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{
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ecore_main_loop_quit();
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}
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int
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main(int argc EINA_UNUSED, char *argv[] EINA_UNUSED)
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{
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const char *img_file = PACKAGE_DATA_DIR"/red.png";
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const char *edje_file = PACKAGE_DATA_DIR"/basic.edj";
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Ecore_Evas *ee;
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Evas *evas;
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Evas_Object *bg;
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Evas_Object *border;
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Evas_Object *edje_obj;
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int x;
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int y;
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int w;
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int h;
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if (!ecore_evas_init())
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return EXIT_FAILURE;
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if (!edje_init())
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goto shutdown_ecore_evas;
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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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ee = ecore_evas_new(NULL, 0, 0, WIDTH, HEIGHT, NULL);
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if (!ee) goto shutdown_edje;
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ecore_evas_callback_delete_request_set(ee, _on_delete);
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ecore_evas_title_set(ee, "Edje Basics Example");
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evas = ecore_evas_get(ee);
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bg = evas_object_rectangle_add(evas);
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evas_object_color_set(bg, 255, 255, 255, 255); /* white bg */
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evas_object_move(bg, 0, 0); /* at canvas' origin */
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evas_object_resize(bg, WIDTH, HEIGHT); /* covers full canvas */
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evas_object_show(bg);
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ecore_evas_object_associate(ee, bg, ECORE_EVAS_OBJECT_ASSOCIATE_BASE);
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evas_object_focus_set(bg, EINA_TRUE);
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edje_obj = edje_object_add(evas);
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/* exercising Edje loading error, on purpose */
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if (!edje_object_file_set(edje_obj, edje_file, "unexistant_group"))
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{
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int err = edje_object_load_error_get(edje_obj);
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const char *errmsg = edje_load_error_str(err);
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fprintf(stderr, "Could not load 'unexistant_group' from basic.edj:"
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" %s\n", errmsg);
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}
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if (!edje_object_file_set(edje_obj, edje_file, "example_group"))
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{
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int err = edje_object_load_error_get(edje_obj);
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const char *errmsg = edje_load_error_str(err);
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fprintf(stderr, "Could not load 'example_group' from basic.edj: %s\n",
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errmsg);
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evas_object_del(edje_obj);
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goto shutdown_edje;
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}
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printf("Loaded Edje object bound to group 'example_group' from"
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" file basic.edj with success!\n");
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evas_object_move(edje_obj, 20, 20);
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evas_object_resize(edje_obj, WIDTH - 40, HEIGHT - 40);
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evas_object_show(edje_obj);
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evas_object_event_callback_add(bg, EVAS_CALLBACK_KEY_DOWN, _on_keydown, edje_obj);
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/* this is a border around the Edje object above, here just to
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* emphasize its geometry */
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border = evas_object_image_filled_add(evas);
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evas_object_image_file_set(border, img_file, NULL);
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evas_object_image_border_set(border, 2, 2, 2, 2);
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evas_object_image_border_center_fill_set(border, EVAS_BORDER_FILL_NONE);
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evas_object_resize(border, WIDTH - 40 + 4, HEIGHT - 40 + 4);
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evas_object_move(border, 20 - 2, 20 - 2);
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evas_object_show(border);
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printf("'example_data' data field in group 'example_group' has "
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"the value: %s\n", edje_object_data_get(edje_obj,
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"example_data"));
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printf("Testing if 'part_one' part exists: %s\n",
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edje_object_part_exists(edje_obj, "part_one") ? "yes!" : "no");
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edje_object_part_geometry_get(edje_obj, "part_one", &x, &y, &w, &h);
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printf("The geometry of that part inside the Edje object's area "
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"is: x = %d, y = %d, w = %d, h = %d\n", x, y, w, h);
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evas_object_color_get(edje_object_part_object_get(edje_obj, "part_one"),
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&x, &y, &w, &h);
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printf("That part's color components are: r = %d, g = %d, b = %d,"
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" a = %d\n", x, y, w, h);
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edje_object_size_max_get(edje_obj, &w, &h);
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printf("The Edje object's max. size is: %d, %d\n", w, h);
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edje_object_size_min_get(edje_obj, &w, &h);
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printf("The Edje object's min. size is: %d, %d\n", w, h);
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edje_object_size_min_calc(edje_obj, &w, &h);
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printf("The Edje object's min. size reported by min. size"
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" calculation is: w = %d, h = %d\n", w, h);
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edje_object_size_min_restricted_calc(edje_obj, &w, &h, 500, 500);
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printf("The Edje object's min. size reported by *restricted* "
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"min. size calculation is: w = %d, h = %d\n", w, h);
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edje_object_parts_extends_calc(edje_obj, &x, &y, &w, &h);
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printf("The Edje object's \"extended\" geometry is: x = %d, "
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"y = %d, w = %d, h = %d\n", x, y, w, h);
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printf(commands);
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ecore_evas_show(ee);
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ecore_main_loop_begin();
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ecore_evas_free(ee);
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ecore_evas_shutdown();
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edje_shutdown();
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return EXIT_SUCCESS;
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shutdown_edje:
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edje_shutdown();
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shutdown_ecore_evas:
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ecore_evas_shutdown();
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return EXIT_FAILURE;
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}
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