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[MSPAINT] Realize Masked Skew

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- Add CreateMonoBitmap and CopyMonoImage functions to dib.cpp.
- Add bMono parameter to SkewDIB function.
- Add hbmMask parameter to InsertFromHBITMAP function.
- Add ToolsModel::IsSelection.
CORE-18867
This commit is contained in:
Katayama Hirofumi MZ 2023-06-19 09:56:02 +09:00
parent f6bd638b4d
commit 9afcbea24e
8 changed files with 111 additions and 27 deletions
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57
base/applications/mspaint/dib.cpp
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@ -36,6 +36,26 @@ CreateDIBWithProperties(int width, int height)
return CreateDIBSection(NULL, &bmi, DIB_RGB_COLORS, NULL, NULL, 0);
}
HBITMAP
CreateMonoBitmap(int width, int height, BOOL bWhite)
{
HBITMAP hbm = CreateBitmap(width, height, 1, 1, NULL);
if (hbm == NULL)
return NULL;
if (bWhite)
{
HDC hdc = CreateCompatibleDC(NULL);
HGDIOBJ hbmOld = SelectObject(hdc, hbm);
RECT rc = { 0, 0, width, height };
FillRect(hdc, &rc, (HBRUSH)GetStockObject(WHITE_BRUSH));
SelectObject(hdc, hbmOld);
DeleteDC(hdc);
}
return hbm;
}
HBITMAP
CreateColorDIB(int width, int height, COLORREF rgb)
{
@ -59,6 +79,34 @@ CreateColorDIB(int width, int height, COLORREF rgb)
return ret;
}
HBITMAP CopyMonoImage(HBITMAP hbm, INT cx, INT cy)
{
BITMAP bm;
if (!GetObject(hbm, sizeof(bm), &bm))
return NULL;
if (cx == 0 || cy == 0)
{
cx = bm.bmWidth;
cy = bm.bmHeight;
}
HBITMAP hbmNew = CreateBitmap(cx, cy, 1, 1, NULL);
if (!hbmNew)
return NULL;
HDC hdc1 = CreateCompatibleDC(NULL);
HDC hdc2 = CreateCompatibleDC(NULL);
HGDIOBJ hbm1Old = SelectObject(hdc1, hbm);
HGDIOBJ hbm2Old = SelectObject(hdc2, hbmNew);
StretchBlt(hdc2, 0, 0, cx, cy, hdc1, 0, 0, bm.bmWidth, bm.bmHeight, SRCCOPY);
SelectObject(hdc1, hbm1Old);
SelectObject(hdc1, hbm2Old);
DeleteDC(hdc1);
DeleteDC(hdc2);
return hbmNew;
}
HBITMAP CachedBufferDIB(HBITMAP hbm, int minimalWidth, int minimalHeight)
{
if (minimalWidth <= 0)
@ -283,7 +331,7 @@ HBITMAP Rotate90DegreeBlt(HDC hDC1, INT cx, INT cy, BOOL bRight, BOOL bMono)
#define M_PI 3.14159265
#endif
HBITMAP SkewDIB(HDC hDC1, HBITMAP hbm, INT nDegree, BOOL bVertical)
HBITMAP SkewDIB(HDC hDC1, HBITMAP hbm, INT nDegree, BOOL bVertical, BOOL bMono)
{
if (nDegree == 0)
return CopyDIBImage(hbm);
@ -301,7 +349,11 @@ HBITMAP SkewDIB(HDC hDC1, HBITMAP hbm, INT nDegree, BOOL bVertical)
if (dx == 0 && dy == 0)
return CopyDIBImage(hbm);
HBITMAP hbmNew = CreateColorDIB(cx + dx, cy + dy, RGB(255, 255, 255));
HBITMAP hbmNew;
if (bMono)
hbmNew = CreateMonoBitmap(cx + dx, cy + dy, FALSE);
else
hbmNew = CreateColorDIB(cx + dx, cy + dy, RGB(255, 255, 255));
if (!hbmNew)
return NULL;
@ -329,6 +381,7 @@ HBITMAP SkewDIB(HDC hDC1, HBITMAP hbm, INT nDegree, BOOL bVertical)
BitBlt(hDC2, delta, y, cx, 1, hDC1, 0, y, SRCCOPY);
}
}
SelectObject(hDC2, hbm2Old);
DeleteDC(hDC2);
return hbmNew;