实现CTreeCtrl 多行选择，单行高亮显示

#include "stdafx.h" #include <algorithm> #include "GDIPlusEx.h" //************************************************--------------------------- GdiplusStartupInput gdiplusStartupInput; ULONG_PTR gdiplusToken; CGDIPlus::CGDIPlus() { gdiplusToken=0; //GDI+初始化 GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL); } CGDIPlus::~CGDIPlus() { //GDI+关闭 if (0 != gdiplusToken) { GdiplusShutdown(gdiplusToken); } } ///////////////////////////////////////////////// //函数名：ChangeColor //功 能：转换Graphics::Color的值为Gdiplus::Color的值 //参 数：aColor 被转换颜色值 //返 回：Gdiplus::Color(Gdiplus类型颜色值) //说　明：转换颜色 ///////////////////////////////////////////////// Gdiplus::Color ChangeColor(COLORREF aColor) { int liRed,liGreen,liBlue; liRed = GetRValue(aColor); liGreen = GetGValue(aColor); liBlue = GetBValue(aColor); return Color(liRed,liGreen,liBlue); } ///////////////////////////////////////////////// //函数名：ucFillRectangle //功 能：填充矩形区域 //参 数：DC (HDC) 绘图设备 // aRect (RECT) 绘制矩形区域 // aColor (COLORREF) 填充颜色 // abEclosion (BOOL) 是否羽化 //返 回：NULL //说　明：单色填充矩形区域 ///////////////////////////////////////////////// void CGDIPlus::usFillRectangle(HDC DC, RECT aRect, COLORREF aColor, BOOL abEclosion) { Graphics usGraphics(DC); Color lgColor = ChangeColor(aColor); if (abEclosion) usGraphics.SetSmoothingMode(SmoothingModeHighQuality); //低速、高质量 SolidBrush lpBrush(lgColor); usGraphics.FillRectangle(&lpBrush, aRect.left, aRect.top, aRect.right - aRect.left, aRect.bottom - aRect.top); } ///////////////////////////////////////////////// //函数名：usFillRectangle //功 能：填充矩形区域 //参 数：DC (HDC) 绘图设备 // aRect (RECT) 绘制矩形区域 // aBeginColor (COLORREF) 起始颜色 // aEndColor (COLORREF) 结束颜色 // aBeginPoint (POINT) 画刷起始点 // aEndPoint (POINT) 画刷结束点 // abEclosion (BOOL) 是否羽化 //返 回：NULL //说　明：渐变色填充矩形区域 ///////////////////////////////////////////////// void CGDIPlus::usFillRectangle(HDC DC, RECT aRect, COLORREF aBeginColor, COLORREF aEndColor, POINT aBeginPoint, POINT aEndPoint, BOOL abEclosion) { Graphics usGraphics(DC); Color lBeginColor = ChangeColor(aBeginColor) ; Color lEndColor = ChangeColor(aEndColor) ; if (abEclosion) { usGraphics.SetSmoothingMode(SmoothingModeHighQuality); //低速、高质量 } LinearGradientBrush linGrBrush( Point(aBeginPoint.x, aBeginPoint.y), Point(aEndPoint.x, aEndPoint.y), lBeginColor, lEndColor); usGraphics.FillRectangle(&linGrBrush, aRect.left, aRect.top, aRect.right - aRect.left, aRect.bottom - aRect.top); } ///////////////////////////////////////////////// //函数名：usFillRectangle //功 能：填充矩形区域 //参 数：DC (HDC) 绘图设备 // aRect (RECT) 绘制矩形区域 // aBeginColor (COLORREF) 渐变开始颜色 // aEndColor (COLORREF) 渐变结束颜色 // Orientation (ENUM_DrawOrientation) 渐变方向 // abEclosion(BOOL) 是否羽化 //返 回：NULL //说　明：填充矩形区域，可选择渐变方式及渐变方向，以及亮度校正 ///////////////////////////////////////////////// void CGDIPlus::usFillRectangle(HDC DC, RECT aRect, COLORREF aBeginColor, COLORREF aEndColor, ENUM_DrawOrientation Orientation, BOOL abEclosion) { Graphics usGraphics(DC); Color lgBeginColor = ChangeColor(aBeginColor); Color lgEndColor = ChangeColor(aEndColor) ; if (abEclosion) { usGraphics.SetSmoothingMode(SmoothingModeHighQuality); //低速、高质量 } if (Orientation == edoVertical) { LinearGradientBrush linGrBrush( Point(aRect.left, aRect.top - 1), Point(aRect.left, aRect.bottom), lgBeginColor, lgEndColor); linGrBrush.SetGammaCorrection(TRUE); usGraphics.FillRectangle(&linGrBrush, aRect.left, aRect.top, aRect.right - aRect.left, aRect.bottom - aRect.top); } else { LinearGradientBrush linGrBrush( Point(aRect.left - 1, aRect.top), Point(aRect.right, aRect.top), lgBeginColor, lgEndColor); linGrBrush.SetGammaCorrection(TRUE); usGraphics.FillRectangle(&linGrBrush, aRect.left, aRect.top, aRect.right - aRect.left, aRect.bottom - aRect.top); } } ///////////////////////////////////////////////// //函数名：usFillRectangle //功 能：填充矩形 //参 数：DC (HDC) 绘图设备 // aRect (RECT) 填充区域 // aColor (COLORREF) 背景色 // aAlpha (INT) 背景色透明度(0~255) // abEclosion (BOOL) 是否支持羽化 //返 回：NULL //说　明：填充矩形时可带颜色透明参数 ///////////////////////////////////////////////// void CGDIPlus::usFillRectangle(HDC DC, RECT aRect, COLORREF aColor, INT aAlpha, BOOL abEclosion) { Graphics usGraphics(DC); INT liRed, liGreen, liBlue; liRed = GetRValue(aColor); liGreen = GetGValue(aColor); liBlue = GetBValue(aColor); Color lgColor(aAlpha, liRed, liGreen, liBlue); if (abEclosion) usGraphics.SetSmoothingMode(SmoothingModeHighQuality); //低速、高质量 SolidBrush lpBrush(lgColor); usGraphics.FillRectangle(&lpBrush, aRect.left, aRect.top, aRect.right - aRect.left, aRect.bottom - aRect.top); } ///////////////////////////////////////////////// //函数名：usFillCenterRectangle //功 能：填充矩形区域 //参 数：DC (HDC) 绘图设备 // aRect (RECT) 绘制矩形区域 // aCenterColor (COLORREF) 渐变中间颜色 // aSurroundColor (COLORREF) 渐变周围颜色 // afCenterWidth (FLOAT) 中间渐变方式宽度向量调整 // afCenterHeight (FLOAT) 中间渐变方式高度向量调整 // abEclosion(BOOL) 是否羽化 //返 回：NULL //说　明：填充矩形区域，可选择从两边向中间渐变的方式 ///////////////////////////////////////////////// void CGDIPlus::usFillCenterRectangle(HDC DC, RECT aRect, COLORREF aCenterColor, COLORREF aSurroundColor, FLOAT afCenterWidth, FLOAT afCenterHeight, BOOL abEclosion) { Graphics usGraphics(DC); GraphicsPath lpPath; lpPath.AddRectangle(Rect(aRect.left, aRect.top, aRect.right - aRect.left, aRect.bottom - aRect.top)); PathGradientBrush pthGrBrush(&lpPath); pthGrBrush.SetGammaCorrection(TRUE); Color lSurroundColor = ChangeColor(aSurroundColor); Color lCenterColor = ChangeColor(aCenterColor); INT num = 1; pthGrBrush.SetSurroundColors(&lSurroundColor, &num); pthGrBrush.SetCenterColor(lCenterColor); if (abEclosion) { usGraphics.SetSmoothingMode(SmoothingModeHighQuality); //低速、高质量 } pthGrBrush.SetFocusScales(afCenterWidth, afCenterHeight); usGraphics.FillPath(&pthGrBrush, &lpPath); } ///////////////////////////////////////////////// //函数名：usFillRound //功 能：填充矩形内切圆 //参 数：DC (HDC) 绘图设备 // aRect (RECT) 绘制矩形区域 // aColor (COLORREF) 填充颜色 // abEclosion (BOOL) 是否羽化 //返 回：NULL //说　明：填充单色矩形内切圆 ///////////////////////////////////////////////// void CGDIPlus::usFillRound(HDC DC, RECT aRect, COLORREF aColor, BOOL abEclosion) { Graphics usGraphics(DC); Color lgColor = ChangeColor(aColor) ; if (abEclosion) { usGraphics.SetSmoothingMode(SmoothingModeHighQuality); //低速、高质量 } SolidBrush lpBrush(lgColor); usGraphics.FillEllipse(&lpBrush, aRect.left, aRect.top, aRect.right - aRect.left, aRect.bottom - aRect.top); } ///////////////////////////////////////////////// //函数名：usFillRound //功 能：填充矩形内切圆 //参 数：DC (HDC) 绘图设备 // aRect (RECT) 绘制矩形区域 // aBeginColor (COLORREF) 渐变开始颜色 // aEndColor (COLORREF) 渐变结束颜色 // Orientation (ENUM_DrawOrientation) 渐变方向 // abEclosion (BOOL) 是否羽化 //返 回：NULL //说　明：填充矩形内切圆，可选择渐变方式及渐变方向，以及亮度校正 ///////////////////////////////////////////////// void CGDIPlus::usFillRound(HDC DC, RECT aRect, COLORREF aBeginColor, COLORREF aEndColor, ENUM_DrawOrientation Orientation, BOOL abEclosion) { Graphics u