forked from enlightenment/efl
evas example: add a png scale down example.
Reviewers: cedric, #committers, zmike Reviewed By: #committers, zmike Subscribers: cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D8886
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@ -16,6 +16,7 @@ EXAMPLES= evas-aspect-hints \
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evas-images3 \
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evas-images4 \
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evas-images5 \
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evas-images6 \
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evas-init-shutdown \
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evas-map-utils \
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evas-object-manipulation \
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@ -0,0 +1,98 @@
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/**
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* Example of handling events for image objects in Evas.
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*
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* You'll need at least one engine built for it (excluding the buffer
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* one) and the png image loader/saver also built. See stdout/stderr
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* for output.
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*
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* @verbatim
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* gcc -o evas-images6 evas-images6.c `pkg-config --libs --cflags evas ecore ecore-evas`
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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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#endif
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#include <Ecore.h>
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#include <Ecore_Evas.h>
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#include <stdio.h>
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#include <errno.h>
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#include "evas-common.h"
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#define WIDTH (960)
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#define HEIGHT (540)
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static const char *img_path = PACKAGE_EXAMPLES_DIR EVAS_IMAGE_FOLDER "/scale_down.png";
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struct test_data
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{
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Ecore_Evas *ee;
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Evas *evas;
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Evas_Object *bg, *img;
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};
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static struct test_data d = {0};
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static void
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_on_destroy(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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/* Keep the example's window size in sync with the background image's size */
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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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ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
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evas_object_resize(d.bg, w, h);
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}
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int
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main(void)
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{
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if (!ecore_evas_init())
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return EXIT_FAILURE;
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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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d.ee = ecore_evas_new(NULL, 10, 10, WIDTH, HEIGHT, NULL);
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if (!d.ee)
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goto error;
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ecore_evas_callback_destroy_set(d.ee, _on_destroy);
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ecore_evas_callback_resize_set(d.ee, _canvas_resize_cb);
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ecore_evas_show(d.ee);
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/* the canvas pointer, de facto */
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d.evas = ecore_evas_get(d.ee);
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d.bg = evas_object_rectangle_add(d.evas);
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evas_object_color_set(d.bg, 255, 255, 255, 255); /* white bg */
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evas_object_move(d.bg, 0, 0); /* at canvas' origin */
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evas_object_resize(d.bg, WIDTH, HEIGHT); /* covers full canvas */
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evas_object_show(d.bg);
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d.img = evas_object_image_filled_add(d.evas);
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evas_object_image_file_set(d.img, img_path, NULL);
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evas_object_image_load_scale_down_set(d.img, 2);
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evas_object_resize(d.img, WIDTH, HEIGHT);
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evas_object_show(d.img);
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ecore_main_loop_begin();
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ecore_evas_free(d.ee);
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ecore_evas_shutdown();
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return 0;
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error:
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fprintf(stderr, "error: Requires at least one Evas engine built and linked"
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" to ecore-evas for this example to run properly.\n");
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ecore_evas_shutdown();
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return -1;
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}
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@ -29,6 +29,7 @@ examples = [
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'evas-images3',
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'evas-images4',
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'evas-images5',
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'evas-images6',
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'evas-images',
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'evas-init-shutdown',
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'evas-map-aa',
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