[ucgui] 对话框2——小窗口初始化与消息响应

 1 /*********************************************************************
 2 *
 3 对话框可以基于阻塞（使用GUI_ExecDialogBox()）或非阻塞（使用GUI_CreateDialogBox()）
 4 方式创建。必须首先定义一个资源表，以指定在对话框中所要包括的所有小工具。下面的示例说明了创
 5 建资源表的方法：
 6 对话框中所要包括的任何小工具都必须使用<WIDGET>_CreateIndirect()函数来间接创建。
 7 */
 8 static const GUI_WIDGET_CREATE_INFO _aDialogCreate[] = {
 9     { FRAMEWIN_CreateIndirect, "Dialog", 0, 10, 10, 180, 230, FRAMEWIN_CF_MOVEABLE, 0 },
10     { BUTTON_CreateIndirect, "OK", GUI_ID_OK, 100, 5, 60, 20 },
11     { BUTTON_CreateIndirect, "Cancel", GUI_ID_CANCEL, 100, 30, 60, 20 },
12     { TEXT_CreateIndirect, "LText", 0, 10, 55, 48, 15, TEXT_CF_LEFT },
13     { TEXT_CreateIndirect, "RText", 0, 10, 80, 48, 15, TEXT_CF_RIGHT },
14     { EDIT_CreateIndirect, NULL, GUI_ID_EDIT0, 60, 55, 100, 15, 0, 50 },
15     { EDIT_CreateIndirect, NULL, GUI_ID_EDIT1, 60, 80, 100, 15, 0, 50 },
16     { TEXT_CreateIndirect, "Hex", 0, 10, 100, 48, 15, TEXT_CF_RIGHT },
17     { EDIT_CreateIndirect, NULL, GUI_ID_EDIT2, 60, 100, 100, 15, 0, 6 },
18     { TEXT_CreateIndirect, "Bin", 0, 10, 120, 48, 15, TEXT_CF_RIGHT },
19     { EDIT_CreateIndirect, NULL, GUI_ID_EDIT3, 60, 120, 100, 15 },
20     { LISTBOX_CreateIndirect, NULL, GUI_ID_LISTBOX0,10, 10, 48, 40 },
21     { CHECKBOX_CreateIndirect, NULL, GUI_ID_CHECK0, 10, 140, 0, 0 },
22     { CHECKBOX_CreateIndirect, NULL, GUI_ID_CHECK1, 30, 140, 0, 0 },
23     { SLIDER_CreateIndirect, NULL, GUI_ID_SLIDER0, 60, 140, 100, 20 },
24     { SLIDER_CreateIndirect, NULL, GUI_ID_SLIDER1, 10, 170, 150, 30 }
25 };
26 /*********************************************************************
27 *
28 对话框过程函数
29 */
30 static void _cbCallback(WM_MESSAGE * pMsg) {
31     int NCode, Id;
32     static const GUI_ConstString _apListBox[] = {  //ListBox contant
33             "English", "Deutsch", "Fran?ais", "Japanese", "Italiano", NULL
34     };
35     WM_HWIN hEdit0, hEdit1, hEdit2, hEdit3, hListBox;
36     WM_HWIN hWin = pMsg->hWin;
37     switch (pMsg->MsgId) {
38     /*用它们各自的初始值对小工具进行初始化。在对话框过程函数中，这是对WM_INIT_DIALOG
39     消息做出反应时的通常做法*/
40     case WM_INIT_DIALOG:
41         /* Get window handles for all widgets */
42         hEdit0 = WM_GetDialogItem(hWin, GUI_ID_EDIT0);
43         hEdit1 = WM_GetDialogItem(hWin, GUI_ID_EDIT1);
44         hEdit2 = WM_GetDialogItem(hWin, GUI_ID_EDIT2);
45         hEdit3 = WM_GetDialogItem(hWin, GUI_ID_EDIT3);
46         hListBox = WM_GetDialogItem(hWin, GUI_ID_LISTBOX0);
47         /* Initialize all widgets */
48         EDIT_SetText(hEdit0, "EDIT widget 0");
49         EDIT_SetText(hEdit1, "EDIT widget 1");
50         EDIT_SetTextAlign(hEdit1, GUI_TA_LEFT);
51         EDIT_SetHexMode(hEdit2, 0x1234, 0, 0xffff);
52         EDIT_SetBinMode(hEdit3, 0x1234, 0, 0xffff);
53         LISTBOX_SetText(hListBox, _apListBox);
54         WM_DisableWindow (WM_GetDialogItem(hWin, GUI_ID_CHECK1));
55         CHECKBOX_Check( WM_GetDialogItem(hWin, GUI_ID_CHECK0));
56         CHECKBOX_Check( WM_GetDialogItem(hWin, GUI_ID_CHECK1));
57         SLIDER_SetWidth( WM_GetDialogItem(hWin, GUI_ID_SLIDER0), 5);
58         SLIDER_SetValue( WM_GetDialogItem(hWin, GUI_ID_SLIDER1), 50);
59         break;
60     /*告知父窗口，其子窗口中发生了某些改变。上面是小工具的初始化，下面是过程中变化的处理*/
61     case WM_NOTIFY_PARENT:
62         Id = WM_GetId(pMsg->hWinSrc); /* Id of widget 获得小工具的ID*/
63         NCode = pMsg->Data.v; /* Notification code 通知消息代号*/
64         switch (NCode) {
65         case WM_NOTIFICATION_RELEASED:/* React only if released 此通知消息将在被点击的小工具已被释放时发送。*/
66             if (Id == GUI_ID_OK) { /* OK Button */
67                 GUI_EndDialog(hWin, 0);
68             }
69             if (Id == GUI_ID_CANCEL) { /* Cancel Button */
70                 GUI_EndDialog(hWin, 1);
71             }
72             break;
73         case WM_NOTIFICATION_SEL_CHANGED:/* Selection changed 此通知消息将在小工具选择已更改时发送。*/
74             FRAMEWIN_SetText(hWin, "Dialog - sel changed");
75             break;
76         default:
77             FRAMEWIN_SetText(hWin, "Dialog - notification received");
78         }
79         break;
80     default:
81     WM_DefaultProc(pMsg);
82     }
83 }
84 /*********************************************************************
85 *
86 * MainTask
87 */
88 void Fun(void) {
89     //对于该示例，对话框显示时会有下列代码行：
90     GUI_ExecDialogBox(_aDialogCreate, GUI_COUNTOF(_aDialogCreate),&_cbCallback, 0, 0, 0);
91 }