36.6 指针输入设备(PID)类型消息实例
基于上面36.5小节的例子,实现PID类型消息WM_MOUSEOVER,代码如下(可以直接将代码复制到模拟器或者开发板上面运行):
#include "DIALOG.h"
/*
*********************************************************************************************************
* 变量
*********************************************************************************************************
*/
static GUI_COLOR _acColor[3] = {GUI_BLUE,GUI_RED,GUI_YELLOW}; //--------------(1)
static unsigned char ucBackColor;
/*
*********************************************************************************************************
* 宏定义
*********************************************************************************************************
*/
#define ID_FRAMEWIN_0 (GUI_ID_USER + 0x00)
#define ID_BUTTON_0 (GUI_ID_USER + 0x01)
#define ID_SCROLLBAR_0 (GUI_ID_USER + 0x02)
#define ID_SLIDER_0 (GUI_ID_USER + 0x03)
/*
*********************************************************************************************************
* GUI_WIDGET_CREATE_INFO类型数组
*********************************************************************************************************
*/
static const GUI_WIDGET_CREATE_INFO _aDialogCreate[] = {
{ FRAMEWIN_CreateIndirect, "Framewin", ID_FRAMEWIN_0, 0, 0, 480, 272, 0, 0x64, 0 },
{ BUTTON_CreateIndirect, "Button", ID_BUTTON_0, 130, 28, 147, 35, 0, 0x0, 0 },
{ SCROLLBAR_CreateIndirect, "Scrollbar", ID_SCROLLBAR_0, 129, 74, 147, 28, 0, 0x0, 0 },
{ SLIDER_CreateIndirect, "Slider", ID_SLIDER_0, 133, 118, 137, 25, 0, 0x0, 0 },
};
/*
*********************************************************************************************************
* 函 数 名: _cbDialog
* 功能说明: 对话框回调函数
* 形 参: pMsg 回调参数
* 返 回 值: 无
*********************************************************************************************************
*/
static void _cbDialog(WM_MESSAGE * pMsg)
{
WM_HWIN hItem;
int NCode;
int Id;
switch (pMsg->MsgId)
{
case WM_INIT_DIALOG:
//
// 初始化 'Framewin'
//
hItem = pMsg->hWin;
FRAMEWIN_SetFont(hItem, GUI_FONT_32B_ASCII);
FRAMEWIN_SetTextAlign(hItem, GUI_TA_HCENTER | GUI_TA_VCENTER);
FRAMEWIN_SetText(hItem, "armfly");
//
// 初始化 'Button'
//
hItem = WM_GetDialogItem(pMsg->hWin, ID_BUTTON_0);
BUTTON_SetFont(hItem, GUI_FONT_24B_ASCII);
BUTTON_SetText(hItem, "armfly");
/* 默认背景色取GUI_BLUE,即蓝色 */
ucBackColor = 0;
break;
case WM_PAINT:
GUI_SetBkColor(_acColor[ucBackColor]); //--------------(2)
GUI_Clear();
break;
case WM_MOUSEOVER: //--------------(3)
ucBackColor++;
if (ucBackColor == 3)
{
ucBackColor = 0;
}
WM_InvalidateWindow(pMsg->hWin);
break;
case WM_KEY:
switch (((WM_KEY_INFO*)(pMsg->Data.p))->Key)
{
case GUI_KEY_ESCAPE:
GUI_EndDialog(pMsg->hWin, 1);
break;
case GUI_KEY_ENTER:
GUI_EndDialog(pMsg->hWin, 0);
break;
}
break;
case WM_NOTIFY_PARENT:
Id = WM_GetId(pMsg->hWinSrc);
NCode = pMsg->Data.v;
switch(Id)
{
case ID_BUTTON_0:
switch(NCode)
{
case WM_NOTIFICATION_CLICKED:
break;
case WM_NOTIFICATION_RELEASED:
break;
}
break;
case ID_SCROLLBAR_0:
switch(NCode)
{
case WM_NOTIFICATION_CLICKED:
break;
case WM_NOTIFICATION_RELEASED:
break;
case WM_NOTIFICATION_VALUE_CHANGED:
break;
}
break;
case ID_SLIDER_0:
switch(NCode)
{
case WM_NOTIFICATION_CLICKED:
break;
case WM_NOTIFICATION_RELEASED:
break;
case WM_NOTIFICATION_VALUE_CHANGED:
break;
}
break;
}
break;
default:
WM_DefaultProc(pMsg);
break;
}
}
/*
*********************************************************************************************************
* 函 数 名: CreateFramewin
* 功能说明: 创建对话框
* 形 参: 无
* 返 回 值: 返回对话框句柄
*********************************************************************************************************
*/
WM_HWIN CreateFramewin(void)
{
WM_HWIN hWin;
hWin = GUI_CreateDialogBox(_aDialogCreate, GUI_COUNTOF(_aDialogCreate), _cbDialog, WM_HBKWIN, 0, 0);
return hWin;
}
/*
*********************************************************************************************************
* 函 数 名: MainTask
* 功能说明: GUI主函数
* 形 参: 无
* 返 回 值: 无
*********************************************************************************************************
*/
void MainTask(void)
{
/* 初始emWin */
GUI_Init();
/* 显示光标 */
GUI_CURSOR_Show();
/* 创建对话框 */
CreateFramewin();
while(1)
{
GUI_Delay(10);
}
} |