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[MSPAINT] Implement skew (#4362)

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- Add SkewDIB helper function in dib.cpp.
- Implement Stretch and Skew feature by SelectionModel::StretchSkew and ImageModel::StretchSkew.
- Move ColorKeyedMaskBlt function.
CORE-16634
This commit is contained in:
Katayama Hirofumi MZ 2022-02-14 16:18:18 +09:00 • committed by GitHub
parent 2d90919047
commit dfd06ee8fc
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9 changed files with 165 additions and 39 deletions
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16
base/applications/mspaint/history.cpp
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@ -192,7 +192,21 @@ void ImageModel::StretchSkew(int nStretchPercentX, int nStretchPercentY, int nSk
int oldHeight = GetHeight();
INT newWidth = oldWidth * nStretchPercentX / 100;
INT newHeight = oldHeight * nStretchPercentY / 100;
Insert(CopyDIBImage(hBms[currInd], newWidth, newHeight));
if (oldWidth != newWidth || oldHeight != newHeight)
{
HBITMAP hbm0 = CopyDIBImage(hBms[currInd], newWidth, newHeight);
Insert(hbm0);
}
if (nSkewDegX)
{
HBITMAP hbm1 = SkewDIB(hDrawingDC, hBms[currInd], nSkewDegX, FALSE);
Insert(hbm1);
}
if (nSkewDegY)
{
HBITMAP hbm2 = SkewDIB(hDrawingDC, hBms[currInd], nSkewDegY, TRUE);
Insert(hbm2);
}
if (GetWidth() != oldWidth || GetHeight() != oldHeight)
NotifyDimensionsChanged();
NotifyImageChanged();