61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
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/*
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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/listbox.h>
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const static struct rtgui_listbox_item items[] =
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{
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{"list #0", RT_NULL},
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{"list #1", RT_NULL},
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{"list #2", RT_NULL},
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{"list #3", RT_NULL},
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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_listbox_t* box;
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/* get listbox */
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box = RTGUI_LISTBOX(widget);
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/* 打印当前的项 */
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rt_kprintf("current item: %d\n", box->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_listbox(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_listbox_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, "ListBox 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("listbox: ");
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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_listbox_create(items, sizeof(items)/sizeof(struct rtgui_listbox_item), &rect);
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rtgui_listbox_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listbox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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