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[MSPAINT] Add get/putSubImage in dib.cpp and use them

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CORE-19094
This commit is contained in:
Katayama Hirofumi MZ 2023-11-18 14:25:19 +09:00
parent a65ebc8a71
commit 764e5505a7
5 changed files with 49 additions and 29 deletions
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33
base/applications/mspaint/dib.cpp
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@ -406,6 +406,39 @@ HBITMAP SkewDIB(HDC hDC1, HBITMAP hbm, INT nDegree, BOOL bVertical, BOOL bMono)
return hbmNew;
}
HBITMAP getSubImage(HBITMAP hbmWhole, const RECT& rcPartial)
{
CRect rc = rcPartial;
HBITMAP hbmPart = CreateDIBWithProperties(rc.Width(), rc.Height());
if (!hbmPart)
return NULL;
HDC hDC1 = ::CreateCompatibleDC(NULL);
HDC hDC2 = ::CreateCompatibleDC(NULL);
HGDIOBJ hbm1Old = ::SelectObject(hDC1, hbmWhole);
HGDIOBJ hbm2Old = ::SelectObject(hDC2, hbmPart);
::BitBlt(hDC2, 0, 0, rc.Width(), rc.Height(), hDC1, rc.left, rc.top, SRCCOPY);
::SelectObject(hDC1, hbm1Old);
::SelectObject(hDC2, hbm2Old);
::DeleteDC(hDC1);
::DeleteDC(hDC2);
return hbmPart;
}
void putSubImage(HBITMAP hbmWhole, const RECT& rcPartial, HBITMAP hbmPart)
{
CRect rc = rcPartial;
HDC hDC1 = ::CreateCompatibleDC(NULL);
HDC hDC2 = ::CreateCompatibleDC(NULL);
HGDIOBJ hbm1Old = ::SelectObject(hDC1, hbmWhole);
HGDIOBJ hbm2Old = ::SelectObject(hDC2, hbmPart);
::BitBlt(hDC1, rc.left, rc.top, rc.Width(), rc.Height(), hDC2, 0, 0, SRCCOPY);
::SelectObject(hDC1, hbm1Old);
::SelectObject(hDC2, hbm2Old);
::DeleteDC(hDC1);
::DeleteDC(hDC2);
}
struct BITMAPINFODX : BITMAPINFO
{
RGBQUAD bmiColorsAdditional[256 - 1];