52 lines
973 B
C++
52 lines
973 B
C++
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#include "StdAfx.h"
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namespace ui {
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GdiClip::GdiClip()
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{
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}
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GdiClip::~GdiClip()
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{
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}
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void GdiClip::CreateClip(HDC hDC, UiRect rcItem)
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{
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if (hDC != NULL) {
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CPoint ptWinOrg;
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GetWindowOrgEx(hDC, &ptWinOrg);
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rcItem.Offset(-ptWinOrg.x, -ptWinOrg.y);
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HRGN hRgn = ::CreateRectRgnIndirect(&rcItem);
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::SaveDC(hDC);
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::ExtSelectClipRgn(hDC, hRgn, RGN_AND);
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::DeleteObject(hRgn);
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}
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}
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void GdiClip::CreateRoundClip(HDC hDC, UiRect rcItem, int width, int height)
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{
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if (hDC != NULL) {
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CPoint ptWinOrg;
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GetWindowOrgEx(hDC, &ptWinOrg);
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rcItem.Offset(-ptWinOrg.x, -ptWinOrg.y);
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HRGN hRgn = ::CreateRoundRectRgn(rcItem.left, rcItem.top, rcItem.right + 1, rcItem.bottom + 1, width, height);
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::SaveDC(hDC);
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::ExtSelectClipRgn(hDC, hRgn, RGN_AND);
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::DeleteObject(hRgn);
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}
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}
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void GdiClip::ClearClip(HDC hDC)
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{
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if (hDC != NULL) {
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ASSERT(::GetObjectType(hDC) == OBJ_DC || ::GetObjectType(hDC) == OBJ_MEMDC);
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::RestoreDC(hDC, -1);
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}
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}
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} // namespace ui
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