183 lines
5.7 KiB
C
183 lines
5.7 KiB
C
/*
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* 程序清单：edit控件演示
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*
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* 这个例子会在conatiner上进行edit控件的演示
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*/
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#include "demo_view.h"
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#include <rtgui/dc.h>
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#include <rtgui/filerw.h>
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#include <rtgui/rtgui_system.h>
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#include <rtgui/widgets/edit.h>
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#include <rtgui/widgets/label.h>
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#include <rtgui/widgets/button.h>
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#ifdef RTGUI_USING_DFS_FILERW
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void demo_edit_readin_file(struct rtgui_object *object, struct rtgui_event *event)
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{
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rtgui_button_t *button;
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struct rtgui_edit *edit;
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const char *filename = "/test_readin.txt";
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struct rtgui_filerw *file;
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RT_ASSERT(object != RT_NULL);
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button = RTGUI_BUTTON(object);
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/* 取得edit指针 */
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edit = RTGUI_EDIT(RTGUI_WIDGET(button)->user_data);
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/* 判断文件是否存在 */
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file = rtgui_filerw_create_file(filename, "rb");
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if (file == RT_NULL)
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{
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/* 不存在存在,则创建它 */
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rt_kprintf("file:\"%s\" does not exist!\n", filename);
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return;
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}
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rtgui_filerw_close(file);
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rt_kprintf("read-in file:\"%s\"\n", filename);
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rtgui_edit_readin_file(edit, filename);
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}
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void demo_edit_saveas_file(struct rtgui_object *object, struct rtgui_event *event)
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{
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rtgui_button_t *button;
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struct rtgui_edit *edit;
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const char* filename = "/test_saveas.txt";
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struct rtgui_filerw *file;
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RT_ASSERT(object != RT_NULL);
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button = RTGUI_BUTTON(object);
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/* 取得edit指针 */
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edit = RTGUI_EDIT(RTGUI_WIDGET(button)->user_data);
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/* 判断文件是否存在, 如果存在则删除之 */
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file = rtgui_filerw_create_file(filename, "rb");
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if (file != RT_NULL)
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{
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rtgui_filerw_close(file);
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/* 如果是在win32中调试, 请手工删除该文件吧, NT中文件是只读的,unlink删除不掉 */
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if (rtgui_filerw_unlink(filename) == -1)
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rt_kprintf("Could not delete %s\n", filename);
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}
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rt_kprintf("save as file:\"%s\"\n", filename);
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rtgui_edit_saveas_file(edit, filename);
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}
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void demo_edit_get_mem(struct rtgui_object* object, struct rtgui_event* event)
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{
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rtgui_button_t *button;
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struct rtgui_edit *edit;
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RT_ASSERT(object != RT_NULL);
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button = RTGUI_BUTTON(object);
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edit = RTGUI_EDIT( RTGUI_WIDGET(button)->user_data );
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rt_kprintf("edit mem consume: %d\n", rtgui_edit_get_mem_consume(edit));
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}
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rt_bool_t demo_edit_event_handler(struct rtgui_object* object, struct rtgui_event *event)
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{
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rt_bool_t result;
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char buf[32];
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rtgui_point_t p;
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struct rtgui_edit *edit = RTGUI_EDIT(object);
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struct rtgui_label *label = (struct rtgui_label*)RTGUI_WIDGET(edit)->user_data;
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result = rtgui_edit_event_handler(object, event);
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p = rtgui_edit_get_current_point(edit);
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rt_sprintf(buf, "TRACK: line:%d, col:%d", p.y, p.x);
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rtgui_label_set_text(label, buf);
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return result;
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}
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/* 创建用于演示edit控件的视图 */
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rtgui_container_t *demo_view_edit(void)
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{
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rtgui_rect_t rect;
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rtgui_container_t *container;
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struct rtgui_edit *edit;
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struct rtgui_label *label;
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struct rtgui_button *button;
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/* 先创建一个演示用的视图 */
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container = demo_view("Edit View");
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edit = rtgui_edit_create(container, 10, 35, 220, 200);
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rtgui_edit_set_text(edit,
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"Edit beta v0.1\n"
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"Hello RT-Thread\n"
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"this's edit demo\n"
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"rtgui_edit_create\n"
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"rtgui_edit_append_line\n"
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"rtgui_edit_insert_line\n"
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"rtgui_edit_delete_line\n"
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"rtgui_edit_connect_line\n"
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"双字节测试\n"
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"a\n"
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"b\n"
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"c\n"
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"d\n"
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"1234567890\n");
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/* 创建一个按钮, 读取某个文件 */
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demo_view_get_rect(container, &rect);
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rect.x1 += 10;
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rect.x2 = rect.x1 + 100;
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rect.y1 += 200;
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rect.y2 = rect.y1 + 22;
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button = rtgui_button_create("ReadIn File");
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rtgui_widget_set_rect(RTGUI_WIDGET(button), &rect);
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rtgui_container_add_child(container, RTGUI_WIDGET(button));
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rtgui_button_set_onbutton(button, demo_edit_readin_file);
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/* 使用user_data传递edit指针 */
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RTGUI_WIDGET(button)->user_data = (rt_uint32_t)edit;
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/* 创建一个按钮, 保存为某个文件 */
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demo_view_get_rect(container, &rect);
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rect.x1 += 130;
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rect.x2 = rect.x1 + 100;
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rect.y1 += 200;
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rect.y2 = rect.y1 + 22;
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button = rtgui_button_create("SaveAs File");
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rtgui_widget_set_rect(RTGUI_WIDGET(button), &rect);
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rtgui_container_add_child(container, RTGUI_WIDGET(button));
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rtgui_button_set_onbutton(button, demo_edit_saveas_file);
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/* 使用user_data传递edit指针 */
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RTGUI_WIDGET(button)->user_data = (rt_uint32_t)edit;
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/* 创建一个标签, 显示EDIT的主要参数 */
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demo_view_get_rect(container, &rect);
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rect.x1 += 10;
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rect.x2 = rect.x1 + 220;
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rect.y1 += 225;
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rect.y2 = rect.y1 + 18;
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label = rtgui_label_create("TRACK:");
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RTGUI_WIDGET_TEXTALIGN(label) = RTGUI_ALIGN_LEFT | RTGUI_ALIGN_CENTER_VERTICAL;
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RTGUI_WIDGET_FOREGROUND(label) = blue;
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rtgui_widget_set_rect(RTGUI_WIDGET(label), &rect);
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rtgui_container_add_child(container, RTGUI_WIDGET(label));
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RTGUI_WIDGET(edit)->user_data = (rt_uint32_t)label;
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rtgui_object_set_event_handler(RTGUI_OBJECT(edit), demo_edit_event_handler);
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/* 创建一个按钮, 读取EDIT的内存消耗 */
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demo_view_get_rect(container, &rect);
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rect.x1 += 150;
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rect.x2 = rect.x1 + 80;
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rect.y1 -= 42;
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rect.y2 = rect.y1 + 20;
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button = rtgui_button_create("Get Mem");
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rtgui_widget_set_rect(RTGUI_WIDGET(button), &rect);
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rtgui_container_add_child(container, RTGUI_WIDGET(button));
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rtgui_button_set_onbutton(button, demo_edit_get_mem);
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RTGUI_WIDGET(button)->user_data = (rt_uint32_t)edit;
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return container;
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}
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#endif
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