95 lines
2.6 KiB
C
95 lines
2.6 KiB
C
/*
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* 程序清单：label控件演示
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*
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* 这个例子会在创建出的view上添加几个不同类型的label控件
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*/
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#include "demo_view.h"
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#include <rtgui/widgets/label.h>
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#include <rtgui/widgets/listctrl.h>
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const static struct list_item
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{
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const char* name;
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const char* gender;
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int age;
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rtgui_image_t* image;
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} items[] =
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{
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{"bernard", "男", 30, RT_NULL},
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{"司马光", "男", 1024, RT_NULL},
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{"妖姬", "妖", 28, RT_NULL},
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};
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void _rtgui_listctrl_item_draw(struct rtgui_listctrl *list, struct rtgui_dc* dc, rtgui_rect_t* rect, rt_uint16_t index)
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{
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char age_str[8];
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rtgui_rect_t item_rect;
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struct list_item *items, *item;
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item_rect = *rect;
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item_rect.x1 += 5;
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items = (struct list_item*)list->items;
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item = &items[index];
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if (item->image != RT_NULL)
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{
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rtgui_image_blit(item->image, dc, &item_rect);
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item_rect.x1 += item->image->w + 3;
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}
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/* draw text */
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rtgui_dc_draw_text(dc, item->name, &item_rect); item_rect.x1 += 80;
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rtgui_dc_draw_vline(dc, item_rect.x1, item_rect.y1, item_rect.y2);
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item_rect.x1 += 5;
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rtgui_dc_draw_text(dc, item->gender, &item_rect); item_rect.x1 += 80;
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rtgui_dc_draw_vline(dc, item_rect.x1, item_rect.y1, item_rect.y2);
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item_rect.x1 += 5;
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rt_snprintf(age_str, sizeof(age_str), "%d", item->age);
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rtgui_dc_draw_text(dc, age_str, &item_rect);
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}
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static void on_items(rtgui_widget_t* widget, struct rtgui_event* event)
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{
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rtgui_listctrl_t* ctrl;
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/* get listctrl */
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ctrl = RTGUI_LISTCTRL(widget);
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/* 打印当前的项 */
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rt_kprintf("current item: %d\n", ctrl->current_item);
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}
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/* 创建用于演示label控件的视图 */
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rtgui_view_t* demo_view_listctrl(rtgui_workbench_t* workbench)
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{
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rtgui_rect_t rect;
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rtgui_view_t* view;
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rtgui_label_t* label;
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rtgui_listctrl_t* box;
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/* 先创建一个演示用的视图 */
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view = demo_view(workbench, "List Control Demo");
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/* 获得视图的位置信息 */
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demo_view_get_rect(view, &rect);
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rect.x1 += 5;
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rect.x2 -= 5;
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rect.y1 += 5;
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rect.y2 = rect.y1 + 20;
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/* 创建一个label控件 */
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label = rtgui_label_create("List Control: ");
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/* 设置label的位置 */
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rtgui_widget_set_rect(RTGUI_WIDGET(label), &rect);
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/* view是一个container控件，调用add_child方法添加这个label控件 */
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rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(label));
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rect.y1 = rect.y2 + 3;
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rect.y2 = 250;
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box = rtgui_listctrl_create((rt_uint32_t)items, sizeof(items)/sizeof(items[0]), &rect,
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_rtgui_listctrl_item_draw);
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rtgui_listctrl_set_onitem(box, on_items);
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/* view是一个container控件，调用add_child方法添加这个listctrl控件 */
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rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(box));
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return view;
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}
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