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richedit: Clip painting to formatting rectangle.

This commit is contained in:
Dylan Smith 2009-01-14 13:23:57 -05:00 committed by Alexandre Julliard
parent d2b13825e4
commit 01ee55a8f6
1 changed files with 16 additions and 1 deletions
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17
dlls/riched20/paint.c
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@ -31,6 +31,16 @@ void ME_PaintContent(ME_TextEditor *editor, HDC hDC, BOOL bOnlyNew, const RECT *
ME_Context c;
int yoffset;
int ys, ye;
HRGN oldRgn;
oldRgn = CreateRectRgn(0, 0, 0, 0);
if (!GetClipRgn(hDC, oldRgn))
{
DeleteObject(oldRgn);
oldRgn = NULL;
}
IntersectClipRect(hDC, rcUpdate->left, rcUpdate->top,
rcUpdate->right, rcUpdate->bottom);
editor->nSequence++;
yoffset = ME_GetYScrollPos(editor);
@ -107,6 +117,10 @@ void ME_PaintContent(ME_TextEditor *editor, HDC hDC, BOOL bOnlyNew, const RECT *
ME_SendRequestResize(editor, FALSE);
editor->nLastTotalLength = editor->nTotalLength;
ME_DestroyContext(&c, NULL);
SelectClipRgn(hDC, oldRgn);
if (oldRgn)
DeleteObject(oldRgn);
}
void ME_Repaint(ME_TextEditor *editor)
@ -1037,7 +1051,8 @@ static void ME_Scroll(ME_TextEditor *editor, int value, int type)
if (abs(nActualScroll) > editor->sizeWindow.cy)
InvalidateRect(editor->hWnd, NULL, TRUE);
else
ScrollWindowEx(editor->hWnd, 0, nActualScroll, NULL, NULL, NULL, NULL, SW_INVALIDATE);
ScrollWindowEx(editor->hWnd, 0, nActualScroll, &editor->rcFormat,
&editor->rcFormat, NULL, NULL, SW_INVALIDATE);
ME_Repaint(editor);
hWnd = editor->hWnd;