tft_api.c

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	short W, H;
	
	if(((Handle < 0) && (Handle >= MAX_WINDOW)) || (Window->Flag == 0))
		return 0;
	TFT_GetWorkBufSize(&W, &H);
	if((TLx >= W) || (TLy >= H))
		return 0;
	if((TLx == Window->TLx) && (TLy == Window->TLy))
		return 0;

	if(TLx >= 0)
	{
		x1 = Window->TLx >= 0 ? Window->TLx : 0;
	}
	else
	{
		x1 = Window->TLx - TLx >= 0 ? Window->TLx - TLx : 0;
	}
	
	if(TLy >= 0)
	{
		y1 = Window->TLy >= 0 ? Window->TLy : 0;
	}
	else
	{
		y1 = Window->TLy - TLy >= 0 ? Window->TLy - TLy : 0;
	}

	x2 = (TLx + Window->Width) < W ? Window->BRx : Window->TLx - TLx + W;
	y2 = (TLy + Window->Height) < H ? Window->BRy : Window->TLy - TLy + H;

	Dx1 = x1 - Window->TLx + TLx;
	Dy1 = y1 - Window->TLy + TLy;
	Dx2 = x2 + TLx - Window->TLx;
	Dy2 = y2 + TLy - Window->TLy;
	TFT_CopyRectToBuffer(TempBuf, x1, y1, x2, y2);
	if(Cut)
	{
		COLOR BGBack = TFT_GetBGColor(Handle);
		TFT_SetBGColor(Handle, COLOR_BLACK);
		TFT_ClearWindow(Handle);
		TFT_SetBGColor(Handle, BGBack);
	}
	TFT_CopyBufferToRect(TempBuf, Dx1, Dy1, Dx2, Dy2);
	Window->TLx = TLx;
	Window->TLy = TLy;
	Window->BRx = TLx + Window->Width - 1;
	Window->BRy = TLy + Window->Height - 1;
	return 1;
}
#if 0
//=============================================================
//语法格式：	int TFT_CopyWindow(WIN_HANDLE Handle, short TLx, short TLy)
//实现功能：	移动并复制窗口
//参数：		Handle		-	窗口句柄
//				TLx,TLy		-	新位置左上角坐标
//返回值：		1: 成功;  0:失败
//=============================================================
int TFT_CopyWindow(WIN_HANDLE Handle, short TLx, short TLy)
{
	return TFT_MoveWindowEx(Handle, TLx, TLy, 0);
}

//=============================================================
//语法格式：	int TFT_MoveWindow(WIN_HANDLE Handle, short TLx, short TLy)
//实现功能：	移动窗口
//参数：		Handle		-	窗口句柄
//				TLx,TLy		-	新位置左上角坐标
//返回值：		1: 成功;  0:失败
//=============================================================
int TFT_MoveWindow(WIN_HANDLE Handle, short TLx,short TLy)
{
	return TFT_MoveWindowEx(Handle, TLx, TLy, 1);
}
#endif
//=============================================================
//语法格式：	int TFT_ResetWindow(WIN_HANDLE Handle, short TLx, short TLy, short BRx, short BRy)
//实现功能：	重设窗口
//参数：		Handle		-	窗口句柄
//				TLx,TLy		-	新位置左上角坐标
//				BRx,BRy		-	新位置右下角坐标
//返回值：		1: 成功;  0:失败
//=============================================================
int TFT_ResetWindow(WIN_HANDLE Handle, short TLx, short TLy, short BRx, short BRy)
{
	STR_WINDOW *Window = g_WinList + Handle;
	short W, H;
	short TLxSet, TLySet, BRxSet, BRySet;

	if((Handle < 0) && (Handle >= MAX_WINDOW))
		return 0;

	TFT_GetWorkBufSize(&W, &H);
	TLxSet = TLx < BRx ? TLx : BRx;
	if(TLxSet > W)
		return 0;

	TLySet = TLy < BRy ? TLy : BRy;
	if(TLySet > H)
		return 0;

	BRxSet = TLx > BRx ? TLx : BRx;
	if(BRxSet >= W)
		BRxSet = W - 1;
	BRySet = TLy >= BRy ? TLy : BRy;
	if(BRySet > H)
		BRySet = H - 1;

	if(((TLxSet < 0) && (BRxSet < 0))
		|| ((TLySet < 0) && (BRySet < 0)))
		return 0;
	
	Window->TLx = TLxSet;
	Window->TLy = TLySet;
	Window->BRx = BRxSet;
	Window->BRy = BRySet;
	Window->Width = BRxSet - TLxSet + 1;
	Window->Height = BRySet - TLySet + 1;
	return 1;
}

//=============================================================
//语法格式：	int TFT_MoveWindowBorder(WIN_HANDLE Handle, short TLx, short TLy)
//实现功能：	移动窗口边框
//参数：		Handle		-	窗口句柄
//				TLx,TLy		-	新位置左上角坐标
//返回值：		1: 成功;  0:失败
//=============================================================
int TFT_MoveWindowBorder(WIN_HANDLE Handle, short TLx, short TLy)
{
	STR_WINDOW *Window = g_WinList + Handle;
	return TFT_ResetWindow(Handle, TLx, TLy, TLx + Window->Width - 1, TLy + Window->Height - 1);
}

//=============================================================
//语法格式：	void TFT_ClearWindow(STR_WINDOW *Window)
//实现功能：	工作窗口清屏
//参数：		Window	-	工作窗口指针
//返回值：		无
//=============================================================
void TFT_ClearWindow(WIN_HANDLE Handle)
{
	STR_WINDOW *Window = g_WinList + Handle;
	short W, H;
	short i, j;
	unsigned short *p_Buf;
	if((Handle < 0) || (Handle >= MAX_WINDOW) || (Window->Flag == 0))
		return;
	TFT_GetWorkBufSize(&W, &H);
	for(i = (Window->TLy >= 0 ? Window->TLy : 0); i <= Window->BRy; i++)
	{
		p_Buf = TFT_SelWorkBuf(-1) + i * W;
		for(j=(Window->TLx >= 0 ? Window->TLx : 0); j <= Window->BRx; j++)
		{
			*(p_Buf+j) = Window->BGColor;
		}
	}
	Window->CurTextX = Window->CurTextY = 0;		// 窗口初始文本绘制坐标
}

//=============================================================
//语法格式：	void TFT_SetTransparency(STR_WINDOW *Window, unsigned short TransparencySet);
//实现功能：	设置新显示内容的透明度
//参数：		Window - 工作窗口指针
//				TransparencySet - 透明度参数，范围0~100（0为不透明，100为全透明）
//返回值：		无
//=============================================================
void TFT_SetTransparency(WIN_HANDLE Handle, unsigned short TransparencySet)
{
	STR_WINDOW *Window = g_WinList + Handle;
	if((Handle < 0) || (Handle >= MAX_WINDOW) || (Window->Flag == 0))
		return;
	Window ->Transparency = TransparencySet * 128 / 100;				// 内部采用128级，以减少计算量
	if(Window ->Transparency > 128)
		Window ->Transparency = 128;
}

//=============================================================
//语法格式：	unsigned short TFT_GetTransparency(STR_WINDOW *Window);
//实现功能：	获取当前设定的透明度
//参数：		Window - 工作窗口指针
//返回值：		透明度参数，范围0~100（0为不透明，100为全透明）
//=============================================================
unsigned short TFT_GetTransparency(WIN_HANDLE Handle)
{
	STR_WINDOW *Window = g_WinList + Handle;
	if((Handle < 0) || (Handle >= MAX_WINDOW) || (Window->Flag == 0))
		return 0;
	return (Window ->Transparency * 100)>>7;
}

//=============================================================
//语法格式：	void TFT_SetColor(STR_WINDOW *Window, unsigned short ColorSet);
//实现功能：	设置显示内容的前景色
//参数：		Window - 工作窗口指针
//				ColorSet - 颜色代码，以16位存储，格式为RRRRR-GGGGGG-BBBBB
//返回值：		无
//=============================================================
void TFT_SetColor(WIN_HANDLE Handle, unsigned short ColorSet)
{
	STR_WINDOW *Window = g_WinList + Handle;
	if((Handle < 0) || (Handle >= MAX_WINDOW) || (Window->Flag == 0))
		return;
	Window->FGColor = ColorSet;
}

//=============================================================
//语法格式：	unsigned short TFT_GetColor(STR_WINDOW *Window);
//实现功能：	获取当前设定的前景色
//参数：		Window - 工作窗口指针
//返回值：		颜色代码，以16位存储，格式为RRRRR-GGGGGG-BBBBB
//=============================================================
unsigned short TFT_GetColor(WIN_HANDLE Handle)
{
	STR_WINDOW *Window = g_WinList + Handle;
	if((Handle < 0) || (Handle >= MAX_WINDOW) || (Window->Flag == 0))
		return 0;
	return Window->FGColor;
}

//=============================================================
//语法格式：	unsigned short TFT_PickColor(STR_WINDOW *Window, short x, short y);
//实现功能：	获取工作区内指定坐标像素的颜色
//参数：		Window - 工作窗口指针
//				x - 相对于工作区的x坐标
//				y - 相对于工作区的y坐标
//返回值：		颜色代码，以16位存储，格式为RRRRR-GGGGGG-BBBBB
//=============================================================
unsigned short TFT_PickColor(WIN_HANDLE Handle, short x, short y)
{
	STR_WINDOW *Window = g_WinList + Handle;
	short AbsX, AbsY;
	short W, H;

	if((Handle < 0) || (Handle >= MAX_WINDOW) || (Window->Flag == 0))
		return 0;
	TFT_GetWorkBufSize(&W, &H);
	AbsX = Window->TLx + x;
	AbsY = Window->TLy + y;
	
	if((AbsX<0)||(AbsY<0)||(AbsX>=W)||(AbsY>=H))
		return 0x0000;
	return *(TFT_SelWorkBuf(-1) + AbsY * W + AbsX);
}

//=============================================================
//语法格式：	unsigned short TFT_PickColorAbsolute(STR_WINDOW *Window, short AbsX, short AbsY);
//实现功能：	获取显示缓冲区中指定坐标像素的颜色
//参数：		Window - 工作窗口指针
//				AbsX - 相对于屏幕的x坐标
//				AbsY - 相对于屏幕的y坐标
//返回值：		颜色代码，以16位存储，格式为RRRRR-GGGGGG-BBBBB
//=============================================================
unsigned short TFT_PickColorAbsolute(WIN_HANDLE Handle, short AbsX, short AbsY)
{
	STR_WINDOW *Window = g_WinList + Handle;
	short W, H;

	if((Handle < 0) || (Handle >= MAX_WINDOW) || (Window->Flag == 0))
		return 0;
	TFT_GetWorkBufSize(&W, &H);
	if((AbsX<0)||(AbsY<0)||(AbsX>=W)||(AbsY>=H))
		return 0x0000;
	return *(TFT_SelWorkBuf(-1) + AbsY * W + AbsX);
}

//=============================================================
//语法格式：	void TFT_SetBGColor(STR_WINDOW *Window, unsigned short ColorSet);
//实现功能：	设定显示背景色（对工作区、文本有效）
//参数：		Window - 工作窗口指针
//				ColorSet - 	背景颜色代码，以16位存储，格式为RRRRR-GGGGGG-BBBBB
//							当ColorSet=0x0000(COLOR_BLACK)时，背景色无效
//返回值：		无
//=============================================================
void TFT_SetBGColor(WIN_HANDLE Handle, unsigned short ColorSet)
{
	STR_WINDOW *Window = g_WinList + Handle;
	if((Handle < 0) || (Handle >= MAX_WINDOW) || (Window->Flag == 0))
		return;
	Window->BGColor = ColorSet;
}

//=============================================================
//语法格式：	unsigned short TFT_GetBGColor(STR_WINDOW *Window);
//实现功能：	获取当前设定的背景色
//参数：		Window - 工作窗口指针
//返回值：		背景颜色代码，以16位存储，格式为RRRRR-GGGGGG-BBBBB
//=============================================================
unsigned short TFT_GetBGColor(WIN_HANDLE Handle)
{
	STR_WINDOW *Window = g_WinList + Handle;
	if((Handle < 0) || (Handle >= MAX_WINDOW) || (Window->Flag == 0))
		return 0;
	return Window->BGColor;
}

//=============================================================
//语法格式：	void TFT_PutPixelAbsolute(STR_WINDOW *Window, short AbsX, short AbsY);
//实现功能：	在显示缓冲区的指定位置画点
//参数：		Window - 工作窗口指针
//				AbsX - 相对于屏幕的x坐标
//				AbsY - 相对于屏幕的y坐标
//返回值：		无
//=============================================================
void TFT_PutPixelAbsolute(WIN_HANDLE Handle, short AbsX, short AbsY)
{
	STR_WINDOW *Window = g_WinList + Handle;
	unsigned short *pBuf;
	short W, H;

	if((Handle < 0) || (Handle >= MAX_WINDOW) || (Window->Flag == 0))
		return;
	TFT_GetWorkBufSize(&W, &H);
	if((AbsX>=0) && (AbsY>=0) && (AbsX < W)&&(AbsY < H))
	{
		pBuf = TFT_SelWorkBuf(-1) + AbsY * W + AbsX;
		if(Window->Transparency==0)
			*pBuf = Window->FGColor;
		else	
			*pBuf = TFT_CalcTransparent(Window, *pBuf, Window->FGColor);
	}
}

//=============================================================
//语法格式：	void TFT_PutPixel(STR_WINDOW *Window, short x, short y);
//实现功能：	在工作区的指定位置画点
//参数：		Window - 工作窗口指针
//				x - 相对于工作区的x坐标
//				y - 相对于工作区的y坐标
//返回值：		无
//=============================================================
void TFT_PutPixel(WIN_HANDLE Handle, short x, short y)
{
	STR_WINDOW *Window = g_WinList + Handle;
	short AbsX, AbsY;

	if((Handle < 0) || (Handle >= MAX_WINDOW) || (Window->Flag == 0))
		return;
	AbsX = Window->TLx+x;
	AbsY = Window->TLy+y;
	if(AbsX<Window->TLx || AbsX>Window->BRx)return;
	if(AbsY<Window->TLy || AbsY>Window->BRy)return;
	TFT_PutPixelAbsolute(Handle, AbsX, AbsY);
}

//=============================================================
//语法格式：	void TFT_PutPixelLine(STR_WINDOW *Window, short line, COLOR ColorTab[])
//实现功能：	在工作区中根据颜色表绘制行
//参数：		Window - 工作窗口指针
//				x        - 逻辑起始x坐标
//				y        - 逻辑行
//				len      - 绘制长度
//				ColorTab - 颜色表
//返回值：		无
//=============================================================