X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/906c935a80b10d53cecf57f71ab5f3f4f1d529ec..64ea838d8f4d1853b7d850db93ee565e901d099a:/src/osx/carbon/region.cpp?ds=sidebyside diff --git a/src/osx/carbon/region.cpp b/src/osx/carbon/region.cpp index 99a9875516..3819109367 100644 --- a/src/osx/carbon/region.cpp +++ b/src/osx/carbon/region.cpp @@ -16,6 +16,7 @@ #ifndef WX_PRECOMP #include "wx/gdicmn.h" + #include "wx/dcmemory.h" #endif #include "wx/osx/private.h" @@ -67,14 +68,6 @@ public: // wxRegion //----------------------------------------------------------------------------- -/*! - * Create an empty region. - */ -wxRegion::wxRegion() -{ - m_refData = new wxRegionRefData(); -} - wxRegion::wxRegion(WXHRGN hRegion ) { wxCFRef< HIShapeRef > shape( (HIShapeRef) hRegion ); @@ -98,63 +91,41 @@ wxRegion::wxRegion(const wxRect& rect) m_refData = new wxRegionRefData(rect.x , rect.y , rect.width , rect.height); } -wxRegion::wxRegion(size_t n, const wxPoint *points, wxPolygonFillMode WXUNUSED(fillStyle)) -{ - wxUnusedVar(n); - wxUnusedVar(points); - -#if 0 - // no non-QD APIs available - // TODO : remove ? - // OS X somehow does not collect the region invisibly as before, so sometimes things - // get drawn on screen instead of just being combined into a region, therefore we allocate a temp gworld now - - GWorldPtr gWorld = NULL; - GWorldPtr oldWorld; - GDHandle oldGDHandle; - OSStatus err; - Rect destRect = { 0, 0, 1, 1 }; - - ::GetGWorld( &oldWorld, &oldGDHandle ); - err = ::NewGWorld( &gWorld, 32, &destRect, NULL, NULL, 0 ); - if ( err == noErr ) - { - ::SetGWorld( gWorld, GetGDevice() ); - - OpenRgn(); - - wxCoord x1, x2 , y1 , y2 ; - x2 = x1 = points[0].x ; - y2 = y1 = points[0].y ; - - ::MoveTo( x1, y1 ); - for (size_t i = 1; i < n; i++) - { - x2 = points[i].x ; - y2 = points[i].y ; - ::LineTo( x2, y2 ); - } - - // close the polyline if necessary - if ( x1 != x2 || y1 != y2 ) - ::LineTo( x1, y1 ) ; - - RgnHandle tempRgn = NewRgn(); - CloseRgn( tempRgn ) ; - - ::SetGWorld( oldWorld, oldGDHandle ); - wxCFRef tempShape( HIShapeCreateWithQDRgn(tempRgn ) ); - m_refData = new wxRegionRefData(tempShape); - DisposeRgn( tempRgn ); - } - else - { - m_refData = new wxRegionRefData; - } -#else - wxFAIL_MSG( "not implemented" ); - m_refData = NULL; -#endif +wxRegion::wxRegion(size_t n, const wxPoint *points, wxPolygonFillMode fillStyle) +{ + // Set the region to a polygon shape generically using a bitmap with the + // polygon drawn on it. + + m_refData = new wxRegionRefData(); + + wxCoord mx = 0; + wxCoord my = 0; + wxPoint p; + size_t idx; + + // Find the max size needed to draw the polygon + for (idx=0; idx mx) + mx = pt.x; + if (pt.y > my) + my = pt.y; + } + + // Make the bitmap + wxBitmap bmp(mx, my); + wxMemoryDC dc(bmp); + dc.SetBackground(*wxBLACK_BRUSH); + dc.Clear(); + dc.SetPen(*wxWHITE_PEN); + dc.SetBrush(*wxWHITE_BRUSH); + dc.DrawPolygon(n, (wxPoint*)points, 0, 0, fillStyle); + dc.SelectObject(wxNullBitmap); + bmp.SetMask(new wxMask(bmp, *wxBLACK)); + + // Use it to set this region + Union(bmp); } wxRegion::~wxRegion() @@ -185,7 +156,7 @@ void wxRegion::Clear() // Move the region bool wxRegion::DoOffset(wxCoord x, wxCoord y) { - wxCHECK_MSG( M_REGION, false, wxT("invalid wxRegion") ); + wxCHECK_MSG( m_refData, false, wxT("invalid wxRegion") ); if ( !x && !y ) // nothing to do @@ -204,6 +175,30 @@ bool wxRegion::DoCombine(const wxRegion& region, wxRegionOp op) { wxCHECK_MSG( region.IsOk(), false, wxT("invalid wxRegion") ); + // Handle the special case of not initialized (e.g. default constructed) + // region as we can't use HIShape functions if we don't have any shape. + if ( !m_refData ) + { + switch ( op ) + { + case wxRGN_COPY: + case wxRGN_OR: + case wxRGN_XOR: + // These operations make sense with a null region. + *this = region; + return true; + + case wxRGN_AND: + case wxRGN_DIFF: + // Those ones don't really make sense so just leave this region + // empty/invalid. + return false; + } + + wxFAIL_MSG( wxT("Unknown region operation") ); + return false; + } + AllocExclusive(); switch (op) @@ -292,6 +287,9 @@ bool wxRegion::IsEmpty() const WXHRGN wxRegion::GetWXHRGN() const { + if ( !m_refData ) + return NULL; + return M_REGION ; } @@ -305,7 +303,7 @@ wxRegionContain wxRegion::DoContainsPoint(wxCoord x, wxCoord y) const if (!m_refData) return wxOutRegion; - CGPoint p = { x, y } ; + CGPoint p = CGPointMake( x, y ) ; if (HIShapeContainsPoint( M_REGION , &p ) ) return wxInRegion; @@ -408,40 +406,6 @@ public : long m_current ; }; -#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5 - -OSStatus wxMacRegionToRectsCounterCallback( - UInt16 message, RgnHandle WXUNUSED(region), const Rect *WXUNUSED(rect), void *data ) -{ - long *m_numRects = (long*) data ; - if ( message == kQDRegionToRectsMsgInit ) - { - (*m_numRects) = 0 ; - } - else if (message == kQDRegionToRectsMsgParse) - { - (*m_numRects) += 1 ; - } - - return noErr; -} - -OSStatus wxMacRegionToRectsSetterCallback( - UInt16 message, RgnHandle WXUNUSED(region), const Rect *rect, void *data ) -{ - if (message == kQDRegionToRectsMsgParse) - { - RegionToRectsCallbackData *cb = (RegionToRectsCallbackData*) data ; - cb->m_rects[cb->m_current++] = wxRect( rect->left , rect->top , rect->right - rect->left , rect->bottom - rect->top ) ; - } - - return noErr; -} - -#endif - -#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 - OSStatus wxOSXRegionToRectsCounterCallback( int message, HIShapeRef WXUNUSED(region), const CGRect *WXUNUSED(rect), void *data ) { @@ -470,8 +434,6 @@ OSStatus wxOSXRegionToRectsSetterCallback( return noErr; } -#endif - void wxRegionIterator::Reset(const wxRegion& region) { m_current = 0; @@ -492,51 +454,20 @@ void wxRegionIterator::Reset(const wxRegion& region) m_rects = new wxRect[m_numRects]; m_rects[0] = m_region.GetBox(); #endif - -#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 - if ( HIShapeEnumerate != NULL ) + OSStatus err = HIShapeEnumerate (OTHER_M_REGION(region), kHIShapeParseFromTopLeft, wxOSXRegionToRectsCounterCallback, + (void*)&m_numRects); + if (err == noErr) { - OSStatus err = HIShapeEnumerate (OTHER_M_REGION(region), kHIShapeParseFromTopLeft, wxOSXRegionToRectsCounterCallback, - (void*)&m_numRects); - if (err == noErr) - { - m_rects = new wxRect[m_numRects]; - RegionToRectsCallbackData data ; - data.m_rects = m_rects ; - data.m_current = 0 ; - HIShapeEnumerate( OTHER_M_REGION(region), kHIShapeParseFromTopLeft, wxOSXRegionToRectsSetterCallback, - (void*)&data ); - } - else - { - m_numRects = 0; - } + m_rects = new wxRect[m_numRects]; + RegionToRectsCallbackData data ; + data.m_rects = m_rects ; + data.m_current = 0 ; + HIShapeEnumerate( OTHER_M_REGION(region), kHIShapeParseFromTopLeft, wxOSXRegionToRectsSetterCallback, + (void*)&data ); } else -#endif { -#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5 - OSStatus err = noErr; - RgnHandle rgn = NewRgn(); - HIShapeGetAsQDRgn(OTHER_M_REGION(region), rgn); - - err = QDRegionToRects (rgn, kQDParseRegionFromTopLeft, wxMacRegionToRectsCounterCallback - , (void*)&m_numRects); - if (err == noErr) - { - m_rects = new wxRect[m_numRects]; - RegionToRectsCallbackData data ; - data.m_rects = m_rects ; - data.m_current = 0 ; - QDRegionToRects( rgn , kQDParseRegionFromTopLeft, wxMacRegionToRectsSetterCallback, - (void*)&data ); - } - else - { - m_numRects = 0; - } - DisposeRgn( rgn ); -#endif + m_numRects = 0; } } }