Tizen Native API
8.0
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evas-text.c
#ifdef HAVE_CONFIG_H #include "config.h" #else #define PACKAGE_EXAMPLES_DIR "." #endif #include <Ecore.h> #include <Ecore_Evas.h> #include <stdio.h> #include <errno.h> #define WIDTH (320) #define HEIGHT (240) #define GREY {190, 190, 190, 255} #define BLACK {0, 0, 0, 255} #define WHITE {255, 255, 255, 255} #define RED {255, 0, 0, 255} #define GREEN {0, 255, 0, 255} #define BLUE {0, 0, 255, 255} #define POINTER_CYCLE(_ptr, _array) \ do \ { \ if ((unsigned int)(((unsigned char *)(_ptr)) - ((unsigned char *)(_array))) >= \ sizeof(_array)) \ _ptr = _array; \ } \ while(0) static const char *commands = \ "commands are:\n" "\tt - change text's current style\n" "\tz - change text's font size\n" "\tf - change text's font family\n" "\tb - change text's base color\n" "\ts - change text's \'shadow\' color\n" "\to - change text's \'outline\' color\n" "\tw - change text's \'glow\' color\n" "\tg - change text's \'glow 2\' color\n" "\th - print help\n"; static const char *border_img_path = PACKAGE_EXAMPLES_DIR "/red.png"; struct color_tuple { int r, g, b, a; }; struct text_preset_data { const char **font_ptr; const char *font[3]; struct color_tuple *text_ptr; struct color_tuple text[6]; struct color_tuple *shadow_ptr; struct color_tuple shadow[4]; struct color_tuple *outline_ptr; struct color_tuple outline[4]; struct color_tuple *glow_ptr; struct color_tuple glow[4]; struct color_tuple *glow2_ptr; struct color_tuple glow2[4]; }; struct test_data { Ecore_Evas *ee; Evas *evas; struct text_preset_data t_data; Evas_Object *text, *bg, *border; }; static struct test_data d = {0}; static void _on_destroy(Ecore_Evas *ee EINA_UNUSED) { ecore_main_loop_quit(); } /* Keep the example's window size in sync with the background image's size */ static void _canvas_resize_cb(Ecore_Evas *ee) { int w, h; ecore_evas_geometry_get(ee, NULL, NULL, &w, &h); evas_object_resize(d.bg, w, h); } static const char * _text_style_type_to_str(Evas_Text_Style_Type mode) { switch (mode) { case EVAS_TEXT_STYLE_PLAIN: return "plain"; case EVAS_TEXT_STYLE_SHADOW: return "shadow"; case EVAS_TEXT_STYLE_OUTLINE: return "outline"; case EVAS_TEXT_STYLE_SOFT_OUTLINE: return "soft outline"; case EVAS_TEXT_STYLE_GLOW: return "glow"; case EVAS_TEXT_STYLE_OUTLINE_SHADOW: return "outline shadow"; case EVAS_TEXT_STYLE_FAR_SHADOW: return "far shadow"; case EVAS_TEXT_STYLE_OUTLINE_SOFT_SHADOW: return "outline soft shadow"; case EVAS_TEXT_STYLE_SOFT_SHADOW: return "soft shadow"; case EVAS_TEXT_STYLE_FAR_SOFT_SHADOW: return "far soft shadow"; default: return "invalid"; } } static void _on_keydown(void *data EINA_UNUSED, Evas *evas EINA_UNUSED, Evas_Object *o EINA_UNUSED, void *einfo) { Evas_Event_Key_Down *ev = einfo; if (strcmp(ev->key, "h") == 0) /* print help */ { printf("%s", commands); return; } if (strcmp(ev->key, "t") == 0) /* change text's current style */ { Evas_Text_Style_Type type = evas_object_text_style_get(d.text); type = (type + 1) % 10; evas_object_text_style_set(d.text, type); printf("Changing text's style to \'%s\'\n", _text_style_type_to_str(type)); return; } if (strcmp(ev->key, "f") == 0) /* change text's font */ { int sz; (d.t_data.font_ptr)++; evas_object_text_font_get(d.text, NULL, &sz); POINTER_CYCLE(d.t_data.font_ptr, d.t_data.font); evas_object_text_font_set(d.text, *d.t_data.font_ptr, sz); printf("Changing text's font to %s\n", *d.t_data.font_ptr); return; } if (strcmp(ev->key, "b") == 0) /* change text's base color */ { (d.t_data.text_ptr)++; POINTER_CYCLE(d.t_data.text_ptr, d.t_data.text); evas_object_color_set( d.text, d.t_data.text_ptr->r, d.t_data.text_ptr->g, d.t_data.text_ptr->b, d.t_data.text_ptr->a); printf("Changing base color for text to (%d, %d, %d, %d)\n", d.t_data.text_ptr->r, d.t_data.text_ptr->g, d.t_data.text_ptr->b, d.t_data.text_ptr->a); return; } if (strcmp(ev->key, "g") == 0) /* change text's glow 2 color */ { (d.t_data.glow2_ptr)++; POINTER_CYCLE(d.t_data.glow2_ptr, d.t_data.glow2); evas_object_text_glow2_color_set( d.text, d.t_data.glow2_ptr->r, d.t_data.glow2_ptr->g, d.t_data.glow2_ptr->b, d.t_data.glow2_ptr->a); printf("Changing glow 2 color for text to (%d, %d, %d, %d)\n", d.t_data.glow2_ptr->r, d.t_data.glow2_ptr->g, d.t_data.glow2_ptr->b, d.t_data.glow2_ptr->a); return; } if (strcmp(ev->key, "w") == 0) /* change text's glow color */ { (d.t_data.glow_ptr)++; POINTER_CYCLE(d.t_data.glow_ptr, d.t_data.glow); evas_object_text_glow_color_set( d.text, d.t_data.glow_ptr->r, d.t_data.glow_ptr->g, d.t_data.glow_ptr->b, d.t_data.glow_ptr->a); printf("Changing glow color for text to (%d, %d, %d, %d)\n", d.t_data.glow_ptr->r, d.t_data.glow_ptr->g, d.t_data.glow_ptr->b, d.t_data.glow_ptr->a); return; } if (strcmp(ev->key, "o") == 0) /* change text's outline color */ { (d.t_data.outline_ptr)++; POINTER_CYCLE(d.t_data.outline_ptr, d.t_data.outline); evas_object_text_outline_color_set( d.text, d.t_data.outline_ptr->r, d.t_data.outline_ptr->g, d.t_data.outline_ptr->b, d.t_data.outline_ptr->a); printf("Changing outline color for text to (%d, %d, %d, %d)\n", d.t_data.outline_ptr->r, d.t_data.outline_ptr->g, d.t_data.outline_ptr->b, d.t_data.outline_ptr->a); return; } if (strcmp(ev->key, "s") == 0) /* change text's shadow color */ { (d.t_data.shadow_ptr)++; POINTER_CYCLE(d.t_data.shadow_ptr, d.t_data.shadow); evas_object_text_shadow_color_set( d.text, d.t_data.shadow_ptr->r, d.t_data.shadow_ptr->g, d.t_data.shadow_ptr->b, d.t_data.shadow_ptr->a); printf("Changing shadow color for text to (%d, %d, %d, %d)\n", d.t_data.shadow_ptr->r, d.t_data.shadow_ptr->g, d.t_data.shadow_ptr->b, d.t_data.shadow_ptr->a); return; } if (strcmp(ev->key, "z") == 0) /* change text's font size */ { const char *font; int size; evas_object_text_font_get(d.text, &font, &size); size = (size + 10) % 50; if (!size) size = 10; evas_object_text_font_set(d.text, font, size); printf("Changing text's font size to %d\n", size); return; } } int main(void) { int size; const char *font; if (!ecore_evas_init()) return EXIT_FAILURE; /* init values one is going to cycle through while running this * example */ struct text_preset_data init_data = { .font = {"DejaVu", "Courier", "Utopia"}, .text = {BLACK, WHITE, GREY, RED, GREEN, BLUE}, .shadow = {WHITE, BLUE, GREEN, RED}, .outline = {WHITE, RED, GREEN, BLUE}, .glow = {WHITE, BLUE, GREEN, RED}, .glow2 = {WHITE, RED, BLUE, GREEN} }; d.t_data = init_data; d.t_data.font_ptr = d.t_data.font; d.t_data.text_ptr = d.t_data.text; d.t_data.glow_ptr = d.t_data.glow; d.t_data.glow2_ptr = d.t_data.glow2; d.t_data.outline_ptr = d.t_data.outline; d.t_data.shadow_ptr = d.t_data.shadow; /* this will give you a window with an Evas canvas under the first * engine available */ d.ee = ecore_evas_new(NULL, 10, 10, WIDTH, HEIGHT, NULL); if (!d.ee) goto error; ecore_evas_callback_destroy_set(d.ee, _on_destroy); ecore_evas_callback_resize_set(d.ee, _canvas_resize_cb); ecore_evas_show(d.ee); /* the canvas pointer, de facto */ d.evas = ecore_evas_get(d.ee); d.bg = evas_object_rectangle_add(d.evas); evas_object_color_set(d.bg, 255, 255, 255, 255); /* white bg */ evas_object_move(d.bg, 0, 0); /* at canvas' origin */ evas_object_resize(d.bg, WIDTH, HEIGHT); /* covers full canvas */ evas_object_show(d.bg); evas_object_focus_set(d.bg, EINA_TRUE); evas_object_event_callback_add( d.bg, EVAS_CALLBACK_KEY_DOWN, _on_keydown, NULL); d.text = evas_object_text_add(d.evas); evas_object_text_style_set(d.text, EVAS_TEXT_STYLE_PLAIN); /* let the pre-set things be enforced */ evas_object_color_set( d.text, d.t_data.text_ptr->r, d.t_data.text_ptr->g, d.t_data.text_ptr->b, d.t_data.text_ptr->a); evas_object_text_glow_color_set( d.text, d.t_data.glow_ptr->r, d.t_data.glow_ptr->g, d.t_data.glow_ptr->b, d.t_data.glow_ptr->a); evas_object_text_glow2_color_set( d.text, d.t_data.glow2_ptr->r, d.t_data.glow2_ptr->g, d.t_data.glow2_ptr->b, d.t_data.glow2_ptr->a); evas_object_text_outline_color_set( d.text, d.t_data.outline_ptr->r, d.t_data.outline_ptr->g, d.t_data.outline_ptr->b, d.t_data.outline_ptr->a); evas_object_text_shadow_color_set( d.text, d.t_data.shadow_ptr->r, d.t_data.shadow_ptr->g, d.t_data.shadow_ptr->b, d.t_data.shadow_ptr->a); evas_object_text_font_set(d.text, *d.t_data.font_ptr, 30); evas_object_text_text_set(d.text, "sample text"); evas_object_resize(d.text, (3 * WIDTH) / 4, HEIGHT / 4); evas_object_move(d.text, WIDTH / 8, (3 * HEIGHT) / 8); evas_object_show(d.text); evas_object_text_font_get(d.text, &font, &size); printf("Adding text object with font %s, size %d\n", font, size); /* this is a border around the text object above, here just to * emphasize its geometry */ d.border = evas_object_image_filled_add(d.evas); evas_object_image_file_set(d.border, border_img_path, NULL); evas_object_image_border_set(d.border, 3, 3, 3, 3); evas_object_image_border_center_fill_set(d.border, EVAS_BORDER_FILL_NONE); evas_object_resize(d.border, ((3 * WIDTH) / 4) + 3, (HEIGHT / 4) + 3); evas_object_move(d.border, (WIDTH / 8) - 3, ((3 * HEIGHT) / 8) - 3); evas_object_show(d.border); printf("%s", commands); ecore_main_loop_begin(); ecore_evas_free(d.ee); ecore_evas_shutdown(); return 0; error: fprintf(stderr, "error: Requires at least one Evas engine built and linked" " to ecore-evas for this example to run properly.\n"); ecore_evas_shutdown(); return -1; }