#include "wx/window.h"
#include "wx/msw/private.h"
- IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
- IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)
+IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
+IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)
//-----------------------------------------------------------------------------
// wxRegionRefData implementation
};
#define M_REGION (((wxRegionRefData*)m_refData)->m_region)
+#define M_REGION_OF(rgn) (((wxRegionRefData*)(rgn.m_refData))->m_region)
//-----------------------------------------------------------------------------
// wxRegion
M_REGION = ::CreateRectRgn(rect.x, rect.y, rect.x + rect.width, rect.y + rect.height);
}
-/*
- * Destroy the region.
- */
+wxRegion::wxRegion(size_t n, const wxPoint *points, int fillStyle)
+{
+#ifdef __WXMICROWIN__
+ m_refData = NULL;
+ M_REGION = NULL;
+#else
+ m_refData = new wxRegionRefData;
+ M_REGION = ::CreatePolygonRgn
+ (
+ (POINT*)points,
+ n,
+ fillStyle == wxODDEVEN_RULE ? ALTERNATE : WINDING
+ );
+#endif
+}
+
wxRegion::~wxRegion()
{
// m_refData unrefed in ~wxObject
}
+wxObjectRefData *wxRegion::CreateRefData() const
+{
+ return new wxRegionRefData;
+}
+
+wxObjectRefData *wxRegion::CloneRefData(const wxObjectRefData *data) const
+{
+ return new wxRegionRefData(*(wxRegionRefData *)data);
+}
+
//-----------------------------------------------------------------------------
// Modify region
//-----------------------------------------------------------------------------
UnRef();
}
-// Combine rectangle (x, y, w, h) with this.
-bool wxRegion::Combine(wxCoord x, wxCoord y, wxCoord width, wxCoord height, wxRegionOp op)
-{
- // Don't change shared data
- if (!m_refData) {
- m_refData = new wxRegionRefData();
- } else if (m_refData->GetRefCount() > 1) {
- wxRegionRefData* ref = (wxRegionRefData*)m_refData;
- UnRef();
- m_refData = new wxRegionRefData(*ref);
- }
- // If ref count is 1, that means it's 'ours' anyway so no action.
-
- HRGN rectRegion = ::CreateRectRgn(x, y, x + width, y + height);
+bool wxRegion::Offset(wxCoord x, wxCoord y)
+{
+ wxCHECK_MSG( M_REGION, FALSE, _T("invalid wxRegion") );
- int mode = 0;
- switch (op)
+ if ( !x && !y )
{
- case wxRGN_AND: mode = RGN_AND; break ;
- case wxRGN_OR: mode = RGN_OR; break ;
- case wxRGN_XOR: mode = RGN_XOR; break ;
- case wxRGN_DIFF: mode = RGN_DIFF; break ;
- case wxRGN_COPY:
- default:
- mode = RGN_COPY; break ;
+ // nothing to do
+ return TRUE;
}
- bool success = (ERROR != ::CombineRgn(M_REGION, M_REGION, rectRegion, mode));
+ AllocExclusive();
- ::DeleteObject(rectRegion);
+ if ( ::OffsetRgn(GetHrgn(), x, y) == ERROR )
+ {
+ wxLogLastError(_T("OffsetRgn"));
+
+ return FALSE;
+ }
- return success;
+ return TRUE;
}
-// Union /e region with this.
-bool wxRegion::Combine(const wxRegion& region, wxRegionOp op)
+// combine another region with this one
+bool wxRegion::Combine(const wxRegion& rgn, wxRegionOp op)
{
- if (region.Empty())
- return FALSE;
-
- // Don't change shared data
- if (!m_refData) {
- m_refData = new wxRegionRefData();
- } else if (m_refData->GetRefCount() > 1) {
- wxRegionRefData* ref = (wxRegionRefData*)m_refData;
- UnRef();
- m_refData = new wxRegionRefData(*ref);
+ // we can't use the API functions if we don't have a valid region handle
+ if ( !m_refData )
+ {
+ // combining with an empty/invalid region works differently depending
+ // on the operation
+ switch ( op )
+ {
+ case wxRGN_COPY:
+ case wxRGN_OR:
+ case wxRGN_XOR:
+ *this = rgn;
+ break;
+
+ default:
+ wxFAIL_MSG( _T("unknown region operation") );
+ // fall through
+
+ case wxRGN_AND:
+ case wxRGN_DIFF:
+ // leave empty/invalid
+ return FALSE;
+ }
}
-
- int mode = 0;
- switch (op)
+ else // we have a valid region
{
- case wxRGN_AND: mode = RGN_AND; break ;
- case wxRGN_OR: mode = RGN_OR; break ;
- case wxRGN_XOR: mode = RGN_XOR; break ;
- case wxRGN_DIFF: mode = RGN_DIFF; break ;
- case wxRGN_COPY:
- default:
- mode = RGN_COPY; break ;
+ int mode;
+ switch ( op )
+ {
+ case wxRGN_AND:
+ mode = RGN_AND;
+ break;
+
+ case wxRGN_OR:
+ mode = RGN_OR;
+ break;
+
+ case wxRGN_XOR:
+ mode = RGN_XOR;
+ break;
+
+ case wxRGN_DIFF:
+ mode = RGN_DIFF;
+ break;
+
+ default:
+ wxFAIL_MSG( _T("unknown region operation") );
+ // fall through
+
+ case wxRGN_COPY:
+ mode = RGN_COPY;
+ break;
+ }
+
+ if ( ::CombineRgn(M_REGION, M_REGION, M_REGION_OF(rgn), mode) == ERROR )
+ {
+ wxLogLastError(_T("CombineRgn"));
+
+ return FALSE;
+ }
}
- return (ERROR != ::CombineRgn(M_REGION, M_REGION, ((wxRegionRefData*)region.m_refData)->m_region, mode));
+ return TRUE;
+}
+
+// Combine rectangle (x, y, w, h) with this.
+bool wxRegion::Combine(wxCoord x, wxCoord y,
+ wxCoord width, wxCoord height,
+ wxRegionOp op)
+{
+ return Combine(wxRegion(x, y, width, height), op);
}
bool wxRegion::Combine(const wxRect& rect, wxRegionOp op)
{
- return Combine(rect.GetLeft(), rect.GetTop(), rect.GetWidth(), rect.GetHeight(), op);
+ return Combine(rect.GetLeft(), rect.GetTop(),
+ rect.GetWidth(), rect.GetHeight(), op);
}
//-----------------------------------------------------------------------------
// Outer bounds of region
void wxRegion::GetBox(wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h) const
{
- if (m_refData) {
+ if (m_refData)
+ {
RECT rect;
::GetRgnBox(M_REGION, & rect);
x = rect.left;
y = rect.top;
w = rect.right - rect.left;
h = rect.bottom - rect.top;
- } else {
+ }
+ else
+ {
x = y = w = h = 0;
}
}
// Is region empty?
bool wxRegion::Empty() const
{
- if (M_REGION == 0)
- return TRUE;
wxCoord x, y, w, h;
GetBox(x, y, w, h);
- return ((w == 0) && (h == 0));
+ return (w == 0) && (h == 0);
}
//-----------------------------------------------------------------------------
m_rects = new wxRect[header->nCount];
- RECT* rect = (RECT*) ((char*)rgnData + sizeof(RGNDATAHEADER)) ;
+ RECT* rect = (RECT*) ((char*)rgnData + sizeof(RGNDATAHEADER));
size_t i;
for (i = 0; i < header->nCount; i++)
{
wxCoord wxRegionIterator::GetW() const
{
if (m_current < m_numRects)
- return m_rects[m_current].width ;
+ return m_rects[m_current].width;
return 0;
}
projects / wxWidgets.git / blobdiff