Qt之九宮格圖片處理

版權聲明：本文爲博主原創文章，遵循 CC 4.0 BY-SA 版權協議，轉載請附上原文出處連接和本聲明。
本文連接：https://blog.csdn.net/libaineu2004/article/details/40451915
/*
**  功能             : 9格圖處理
**  picName          : 圖片名字
**  titleHeight      : 標題欄高度(單位:像素)
**  BorderLineWidth  : 邊框寬度(單位:像素)
**  parent           : 帶畫背景的窗口句柄
**  返回值              :處理完成的圖片
*/
QPixmap* NinePatch(QString& picName,int iHorzSplit,int iVertSplit, int DstWidth, int DstHeight)
{
    QPixmap* pix = new QPixmap(picName);
 
    int pixWidth = pix->width();
    int pixHeight = pix->height();
 
    QPixmap pix_1 = pix->copy(0, 0, iHorzSplit, iVertSplit);
    QPixmap pix_2 = pix->copy(iHorzSplit, 0, pixWidth-iHorzSplit*2, iVertSplit);
    QPixmap pix_3 = pix->copy(pixWidth-iHorzSplit, 0, iHorzSplit, iVertSplit);
 
    QPixmap pix_4 = pix->copy(0, iVertSplit, iHorzSplit, pixHeight-iVertSplit*2);
    QPixmap pix_5 = pix->copy(iHorzSplit, iVertSplit, pixWidth-iHorzSplit*2, pixHeight-iVertSplit*2);
    QPixmap pix_6 = pix->copy(pixWidth-iHorzSplit, iVertSplit, iHorzSplit, pixHeight-iVertSplit*2);
 
    QPixmap pix_7 = pix->copy(0, pixHeight-iVertSplit, iHorzSplit, iVertSplit);
    QPixmap pix_8 = pix->copy(iHorzSplit, pixHeight-iVertSplit, pixWidth-iHorzSplit*2, pixWidth - iHorzSplit*2);
    QPixmap pix_9 = pix->copy(pixWidth-iHorzSplit, pixHeight-iVertSplit, iHorzSplit, iVertSplit);
 
    pix_2 = pix_2.scaled(DstWidth-iHorzSplit*2,iVertSplit, Qt::IgnoreAspectRatio);//保持高度拉寬
    pix_4 = pix_4.scaled(iHorzSplit, DstHeight-iVertSplit*2, Qt::IgnoreAspectRatio);//保持寬度拉高
    pix_5 = pix_5.scaled(DstWidth-iHorzSplit*2,DstHeight-iVertSplit*2, Qt::IgnoreAspectRatio);
    pix_6 = pix_6.scaled(iHorzSplit, DstHeight-iVertSplit*2, Qt::IgnoreAspectRatio);//保持寬度拉高
    pix_8 = pix_8.scaled(DstWidth-iHorzSplit*2, iVertSplit);//保持高度拉寬
 
 
    QPixmap* resultImg =new QPixmap(DstWidth, DstHeight);
    QPainter* painter = new QPainter(resultImg);
    if (!resultImg->isNull()) {
        painter->drawPixmap(0,0,pix_1);
        painter->drawPixmap(iHorzSplit, 0, pix_2);
        painter->drawPixmap(DstWidth-iHorzSplit,0,pix_3);
 
        painter->drawPixmap(0, iVertSplit, pix_4);
        painter->drawPixmap(iHorzSplit, iVertSplit, pix_5);
        painter->drawPixmap(DstWidth-iHorzSplit, iVertSplit, pix_6);
 
        painter->drawPixmap(0, DstHeight-iVertSplit, pix_7);
        painter->drawPixmap(iHorzSplit, DstHeight-iVertSplit, pix_8);
        painter->drawPixmap(DstWidth-iHorzSplit, DstHeight-iVertSplit, pix_9);
        painter->end();
    }
    return resultImg;
}
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版權聲明：本文爲CSDN博主「libaineu2004」的原創文章，遵循 CC 4.0 BY-SA 版權協議，轉載請附上原文出處連接及本聲明。
原文連接：https://blog.csdn.net/libaineu2004/article/details/40451915