Tizen Native API
7.0
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evas-box.c
#ifdef HAVE_CONFIG_H #include "config.h" #else #define PACKAGE_EXAMPLES_DIR "." #endif #include <Ecore.h> #include <Ecore_Evas.h> #include <stdlib.h> #include <stdio.h> #include <string.h> #include "evas-common.h" #define WIDTH (640) #define HEIGHT (480) static const char *border_img_path = PACKAGE_EXAMPLES_DIR EVAS_IMAGE_FOLDER "/red.png"; static const char *commands = \ "commands are:\n" "\ta - change the box's alignment values\n" "\tp - change the box's padding values\n" "\t1 - change the box's layout to horizontal\n" "\t2 - change the box's layout to vertical\n" "\t3 - change the box's layout to horizontal homogeneous\n" "\t4 - change the box's layout to vertical homogeneous\n" "\t5 - change the box's layout to horizontal maximum size homogeneous\n" "\t6 - change the box's layout to vertical maximum size homogeneous\n" "\t7 - change the box's layout to horizontal flow\n" "\t8 - change the box's layout to vertical flow\n" "\t9 - change the box's layout to stack\n" "\t0 - change the box's layout to a custom-made one\n" "\tCtrl + NUMBER - insert a new child object at that position in the box\n" "\tShift + NUMBER - remove the child object at that position in the box\n" "\th - print help\n"; struct example_data { Ecore_Evas *ee; Evas *evas; Evas_Object *bg, *box, *border; }; static struct example_data d; static void /* custom 'diagonal' layout */ _custom_layout(Evas_Object *o, Evas_Object_Box_Data *p, void *data EINA_UNUSED) { int x, y, w, h; int xx, yy, ww, hh; int count; Eina_List *l; Evas_Object_Box_Option *opt; evas_object_geometry_get(o, &x, &y, &w, &h); count = eina_list_count(p->children); ww = w / (count ? : 1); hh = h / (count ? : 1); if (ww < 1) ww = 1; if (hh < 1) hh = 1; xx = x; yy = y; EINA_LIST_FOREACH(p->children, l, opt) { evas_object_move(opt->obj, xx, yy); xx += ww; yy += hh; } } static Evas_Object * /* new rectangle to be put in the box */ _new_rectangle_add(Evas *e) { Evas_Object *o; o = evas_object_rectangle_add(e); evas_object_resize(o, 10, 10); evas_object_color_set(o, 0, 255, 0, 255); evas_object_show(o); return o; } /* use the following commands to interact with this example - 'h' is * the key for help */ 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; const Evas_Modifier *mods = evas_key_modifier_get(evas); if (strcmp(ev->key, "h") == 0) /* print help */ { printf("%s", commands); return; } if (evas_key_modifier_is_set(mods, "Shift")) { int pos; Eina_Bool ret; Evas_Object *obj; Eina_List *children; pos = atoi(ev->key); children = evas_object_box_children_get(d.box); obj = eina_list_nth(children, pos); if (!obj) goto list_free; ret = evas_object_box_remove_at(d.box, pos); if (ret) evas_object_del(obj); list_free: eina_list_free(children); return; } if (evas_key_modifier_is_set(mods, "Control")) { Evas_Object *o_; int pos; pos = atoi(ev->key); o_ = _new_rectangle_add(d.evas); if (!evas_object_box_insert_at(d.box, o_, pos)) evas_object_box_append(d.box, o_); return; } if (strcmp(ev->key, "a") == 0) { double h, v; evas_object_box_align_get(d.box, &h, &v); if (EINA_DBL_EQ(h, 0.5)) h = v = 1.0; else if (EINA_DBL_EQ(h, 1.0)) h = v = -1.0; else if (EINA_DBL_EQ(h, -1.0)) h = v = 0.0; else if (EINA_DBL_EQ(h, 0.0)) h = v = 0.5; evas_object_box_align_set(d.box, h, v); printf("Applying new alignment values (%.1f, %.1f) on the box\n", h, v); return; } if (strcmp(ev->key, "p") == 0) { int h, v; evas_object_box_padding_get(d.box, &h, &v); if (h == 0) h = v = 50; else h = v = 0; evas_object_box_padding_set(d.box, h, v); printf("Applying new padding values (%d, %d) on the box\n", h, v); return; } if (strcmp(ev->key, "1") == 0) { evas_object_box_layout_set( d.box, evas_object_box_layout_horizontal, NULL, NULL); printf("Applying '%s' layout on the box\n", "horizontal"); return; } if (strcmp(ev->key, "2") == 0) { evas_object_box_layout_set( d.box, evas_object_box_layout_vertical, NULL, NULL); printf("Applying '%s' layout on the box\n", "vertical"); return; } if (strcmp(ev->key, "3") == 0) { evas_object_box_layout_set( d.box, evas_object_box_layout_homogeneous_horizontal, NULL, NULL); printf("Applying '%s' layout on the box\n", "horizontal homogeneous"); return; } if (strcmp(ev->key, "4") == 0) { evas_object_box_layout_set( d.box, evas_object_box_layout_homogeneous_vertical, NULL, NULL); printf("Applying '%s' layout on the box\n", "vertical homogeneous"); return; } if (strcmp(ev->key, "5") == 0) { evas_object_box_layout_set( d.box, evas_object_box_layout_homogeneous_max_size_horizontal, NULL, NULL); printf("Applying '%s' layout on the box\n", "horizontal maximum size homogeneous"); return; } if (strcmp(ev->key, "6") == 0) { evas_object_box_layout_set( d.box, evas_object_box_layout_homogeneous_max_size_vertical, NULL, NULL); printf("Applying '%s' layout on the box\n", "vertical maximum size homogeneous"); return; } if (strcmp(ev->key, "7") == 0) { evas_object_box_layout_set( d.box, evas_object_box_layout_flow_horizontal, NULL, NULL); printf("Applying '%s' layout on the box\n", "horizontal flow"); return; } if (strcmp(ev->key, "8") == 0) { evas_object_box_layout_set( d.box, evas_object_box_layout_flow_vertical, NULL, NULL); printf("Applying '%s' layout on the box\n", "vertical flow"); return; } if (strcmp(ev->key, "9") == 0) { evas_object_box_layout_set( d.box, evas_object_box_layout_stack, NULL, NULL); printf("Applying '%s' layout on the box\n", "stack"); return; } if (strcmp(ev->key, "0") == 0) { evas_object_box_layout_set(d.box, _custom_layout, NULL, NULL); printf("Applying '%s' layout on the box\n", "CUSTOM"); return; } } static void _on_delete(Ecore_Evas *ee EINA_UNUSED) { ecore_main_loop_quit(); } static void /* adjust canvas' contents on resizes */ _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); evas_object_move(d.box, (w / 4), (h / 4)); evas_object_resize(d.box, (w / 2), (h / 2)); evas_object_move(d.border, (w / 4) - 2, (h / 4) - 2); evas_object_resize(d.border, (w / 2) + 4, (h / 2) + 4); } int main(void) { Evas_Object *last, *o; int i; srand(time(NULL)); if (!ecore_evas_init()) return EXIT_FAILURE; /* this will give you a window with an Evas canvas under the first * engine available */ d.ee = ecore_evas_new(NULL, 0, 0, WIDTH, HEIGHT, NULL); if (!d.ee) goto panic; ecore_evas_callback_delete_request_set(d.ee, _on_delete); ecore_evas_callback_resize_set(d.ee, _canvas_resize_cb); ecore_evas_show(d.ee); 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_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.box = evas_object_box_add(d.evas); evas_object_show(d.box); for (i = 1; i <= 5; i++) { o = last = evas_object_rectangle_add(d.evas); evas_object_size_hint_min_set(o, 50, 50); evas_object_color_set( o, rand() % 256, rand() % 256, rand() % 256, 255); evas_object_show(o); if (!evas_object_box_append(d.box, o)) { fprintf(stderr, "Error appending child object on the box!\n"); goto error; } } /* this is a border around the box, container of the rectangles we * are going to experiment with. this way you can see how the * container relates to the children */ 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, 2, 2, 2, 2); evas_object_image_border_center_fill_set(d.border, EVAS_BORDER_FILL_NONE); evas_object_show(d.border); printf("%s", commands); _canvas_resize_cb(d.ee); ecore_main_loop_begin(); ecore_evas_shutdown(); return 0; error: ecore_evas_shutdown(); return -1; panic: fprintf(stderr, "error: Requires at least one Evas engine built and linked" " to ecore-evas for this example to run properly.\n"); return -2; }