From a46a257794f1f53b294735fc876c394be23a3811 Mon Sep 17 00:00:00 2001 From: Noel Grandin Date: Wed, 5 Jun 2019 15:24:04 +0200 Subject: improve empty tools::Rectangle (width) This is the width part, the height part will come next. Instead of storing "empty" as a special value (which is easy to get wrong, eg. some image filters pass in that special value, expecting it to be a valid width), just use separate boolean values for width and height empty. Also lots of code was calling GetBottom() or GetRight() on an empty rectangle, getting back that magic value and doing calculations on it, resulting in completely bogus data. So (1) make the various Rectangle methods do something reasonable when the empty flags are set (2) fix various other code to handle empty better (3) assert when code accesses Bottom or Right and the empty flag is set. Change-Id: I1163378cd2773dd8b386210f83400bb6b4701069 Reviewed-on: https://gerrit.libreoffice.org/73564 Tested-by: Jenkins Reviewed-by: Noel Grandin --- editeng/source/editeng/impedit3.cxx | 2 + include/tools/gen.hxx | 83 +++++++++++++++------- sc/source/ui/view/gridwin.cxx | 55 +++++++------- sd/source/filter/eppt/escherex.cxx | 3 +- svtools/source/control/tabbar.cxx | 6 +- svx/source/sdr/contact/objectcontactofpageview.cxx | 3 + sw/source/core/view/vdraw.cxx | 2 +- sw/source/uibase/uiview/viewport.cxx | 8 ++- tools/source/generic/gen.cxx | 32 +++++++-- vcl/osx/salnativewidgets.cxx | 2 + vcl/source/control/tabctrl.cxx | 2 +- vcl/source/gdi/mtfxmldump.cxx | 2 +- vcl/source/outdev/rect.cxx | 3 +- vcl/source/treelist/treelistbox.cxx | 2 +- vcl/win/gdi/salnativewidgets-luna.cxx | 3 + 15 files changed, 137 insertions(+), 71 deletions(-) diff --git a/editeng/source/editeng/impedit3.cxx b/editeng/source/editeng/impedit3.cxx index ec3e10cf1290..bbcf17179fb4 100644 --- a/editeng/source/editeng/impedit3.cxx +++ b/editeng/source/editeng/impedit3.cxx @@ -2921,6 +2921,8 @@ void ImpEditEngine::Paint( OutputDevice* pOutDev, tools::Rectangle aClipRect, Po { if ( !GetUpdateMode() && !bStripOnly ) return; + if ( aClipRect.IsEmpty() ) + return; if ( !IsFormatted() ) FormatDoc(); diff --git a/include/tools/gen.hxx b/include/tools/gen.hxx index 0d9a81ebdcee..d84d359b543a 100644 --- a/include/tools/gen.hxx +++ b/include/tools/gen.hxx @@ -24,6 +24,7 @@ #include #include #include +#include class SvStream; namespace rtl @@ -386,12 +387,12 @@ public: Rectangle( const Point& rLT, const Size& rSize ); long Left() const { return nLeft; } - long Right() const { return nRight; } + long Right() const { assert(!mbWidthEmpty); return nRight; } long Top() const { return nTop; } long Bottom() const { return nBottom; } void SetLeft(long v) { nLeft = v; } - void SetRight(long v) { nRight = v; } + void SetRight(long v) { nRight = v; mbWidthEmpty = false; } void SetTop(long v) { nTop = v; } void SetBottom(long v) { nBottom = v; } @@ -409,7 +410,17 @@ public: inline void Move( long nHorzMoveDelta, long nVertMoveDelta ); void Move( Size const & s ) { Move(s.Width(), s.Height()); } long AdjustLeft( long nHorzMoveDelta ) { nLeft += nHorzMoveDelta; return nLeft; } - long AdjustRight( long nHorzMoveDelta ) { nRight += nHorzMoveDelta; return nRight; } + long AdjustRight( long nHorzMoveDelta ) + { + if (mbWidthEmpty) + { + mbWidthEmpty = false; + nRight = nLeft + nHorzMoveDelta - 1; + } + else + nRight += nHorzMoveDelta; + return nRight; + } long AdjustTop( long nVertMoveDelta ) { nTop += nVertMoveDelta; return nTop; } long AdjustBottom( long nVertMoveDelta ) { nBottom += nVertMoveDelta; return nBottom; } inline void SetPos( const Point& rPoint ); @@ -432,11 +443,11 @@ public: bool IsInside( const tools::Rectangle& rRect ) const; bool IsOver( const tools::Rectangle& rRect ) const; - void SetEmpty() { nRight = nBottom = RECT_EMPTY; } - void SetWidthEmpty() { nRight = RECT_EMPTY; } + void SetEmpty() { nRight = 0; nBottom = RECT_EMPTY; mbWidthEmpty = true; } + void SetWidthEmpty() { nRight = 0; mbWidthEmpty = true; } void SetHeightEmpty() { nBottom = RECT_EMPTY; } inline bool IsEmpty() const; - bool IsWidthEmpty() const { return nRight == RECT_EMPTY; } + bool IsWidthEmpty() const { return mbWidthEmpty; } bool IsHeightEmpty() const { return nBottom == RECT_EMPTY; } inline bool operator == ( const tools::Rectangle& rRect ) const; @@ -455,14 +466,19 @@ public: long getX() const { return nLeft; } long getY() const { return nTop; } /// Returns the difference between right and left, assuming the range includes one end, but not the other. - long getWidth() const { return nRight - nLeft; } + long getWidth() const { return mbWidthEmpty ? 0 : nRight - nLeft; } /// Returns the difference between bottom and top, assuming the range includes one end, but not the other. long getHeight() const { return nBottom - nTop; } /// Set the left edge of the rectangle to x, preserving the width - void setX( long x ) { nRight += x - nLeft; nLeft = x; } + void setX( long x ) + { + if (!mbWidthEmpty) + nRight += x - nLeft; + nLeft = x; + } /// Set the top edge of the rectangle to y, preserving the height void setY( long y ) { nBottom += y - nTop; nTop = y; } - void setWidth( long n ) { nRight = nLeft + n; } + void setWidth( long n ) { nRight = nLeft + n; mbWidthEmpty = false; } void setHeight( long n ) { nBottom = nTop + n; } /// Returns the string representation of the rectangle, format is "x, y, width, height". rtl::OString toString() const; @@ -481,6 +497,7 @@ public: void SaturatingSetY(long y); private: + bool mbWidthEmpty : 1; long nLeft; long nTop; long nRight; @@ -491,7 +508,9 @@ private: inline tools::Rectangle::Rectangle() { nLeft = nTop = 0; - nRight = nBottom = RECT_EMPTY; + nRight = 0; + nBottom = RECT_EMPTY; + mbWidthEmpty = true; } inline tools::Rectangle::Rectangle( const Point& rLT, const Point& rRB ) @@ -500,6 +519,7 @@ inline tools::Rectangle::Rectangle( const Point& rLT, const Point& rRB ) nTop = rLT.Y(); nRight = rRB.X(); nBottom = rRB.Y(); + mbWidthEmpty = false; } inline tools::Rectangle::Rectangle( long _nLeft, long _nTop, @@ -509,26 +529,30 @@ inline tools::Rectangle::Rectangle( long _nLeft, long _nTop, nTop = _nTop; nRight = _nRight; nBottom = _nBottom; + mbWidthEmpty = false; } inline tools::Rectangle::Rectangle( long _nLeft, long _nTop ) { nLeft = _nLeft; nTop = _nTop; - nRight = nBottom = RECT_EMPTY; + nRight = 0; + nBottom = RECT_EMPTY; + mbWidthEmpty = true; } inline tools::Rectangle::Rectangle( const Point& rLT, const Size& rSize ) { nLeft = rLT.X(); nTop = rLT.Y(); - nRight = rSize.Width() ? nLeft+(rSize.Width()-1) : RECT_EMPTY; + nRight = rSize.Width() ? nLeft+(rSize.Width()-1) : 0; nBottom = rSize.Height() ? nTop+(rSize.Height()-1) : RECT_EMPTY; + mbWidthEmpty = rSize.Width() == 0; } inline bool tools::Rectangle::IsEmpty() const { - return (nRight == RECT_EMPTY) || (nBottom == RECT_EMPTY); + return mbWidthEmpty || (nBottom == RECT_EMPTY); } inline Point tools::Rectangle::TopLeft() const @@ -538,7 +562,7 @@ inline Point tools::Rectangle::TopLeft() const inline Point tools::Rectangle::TopRight() const { - return Point( (nRight == RECT_EMPTY) ? nLeft : nRight, nTop ); + return Point( mbWidthEmpty ? nLeft : nRight, nTop ); } inline Point tools::Rectangle::BottomLeft() const @@ -548,7 +572,7 @@ inline Point tools::Rectangle::BottomLeft() const inline Point tools::Rectangle::BottomRight() const { - return Point( (nRight == RECT_EMPTY) ? nLeft : nRight, + return Point( mbWidthEmpty ? nLeft : nRight, (nBottom == RECT_EMPTY) ? nTop : nBottom ); } @@ -598,7 +622,7 @@ inline void tools::Rectangle::Move( long nHorzMove, long nVertMove ) { nLeft += nHorzMove; nTop += nVertMove; - if ( nRight != RECT_EMPTY ) + if ( !mbWidthEmpty ) nRight += nHorzMove; if ( nBottom != RECT_EMPTY ) nBottom += nVertMove; @@ -606,7 +630,7 @@ inline void tools::Rectangle::Move( long nHorzMove, long nVertMove ) inline void tools::Rectangle::SetPos( const Point& rPoint ) { - if ( nRight != RECT_EMPTY ) + if ( !mbWidthEmpty ) nRight += rPoint.X() - nLeft; if ( nBottom != RECT_EMPTY ) nBottom += rPoint.Y() - nTop; @@ -617,7 +641,7 @@ inline void tools::Rectangle::SetPos( const Point& rPoint ) inline long tools::Rectangle::GetWidth() const { long n; - if ( nRight == RECT_EMPTY ) + if ( mbWidthEmpty ) n = 0; else { @@ -670,22 +694,20 @@ inline bool tools::Rectangle::operator == ( const tools::Rectangle& rRect ) cons return (nLeft == rRect.nLeft ) && (nTop == rRect.nTop ) && (nRight == rRect.nRight ) && - (nBottom == rRect.nBottom ); + (nBottom == rRect.nBottom ) && + (mbWidthEmpty == rRect.mbWidthEmpty); } inline bool tools::Rectangle::operator != ( const tools::Rectangle& rRect ) const { - return (nLeft != rRect.nLeft ) || - (nTop != rRect.nTop ) || - (nRight != rRect.nRight ) || - (nBottom != rRect.nBottom ); + return !(operator==(rRect)); } inline tools::Rectangle& tools::Rectangle::operator +=( const Point& rPt ) { nLeft += rPt.X(); nTop += rPt.Y(); - if ( nRight != RECT_EMPTY ) + if ( !mbWidthEmpty ) nRight += rPt.X(); if ( nBottom != RECT_EMPTY ) nBottom += rPt.Y(); @@ -696,7 +718,7 @@ inline tools::Rectangle& tools::Rectangle::operator -= ( const Point& rPt ) { nLeft -= rPt.X(); nTop -= rPt.Y(); - if ( nRight != RECT_EMPTY ) + if ( !mbWidthEmpty ) nRight -= rPt.X(); if ( nBottom != RECT_EMPTY ) nBottom -= rPt.Y(); @@ -726,7 +748,13 @@ inline void tools::Rectangle::expand(long nExpandBy) { nLeft -= nExpandBy; nTop -= nExpandBy; - nRight += nExpandBy; + if (mbWidthEmpty) + { + nRight = nLeft + nExpandBy - 1; + mbWidthEmpty = false; + } + else + nRight += nExpandBy; nBottom += nExpandBy; } @@ -734,7 +762,8 @@ inline void tools::Rectangle::shrink(long nShrinkBy) { nLeft += nShrinkBy; nTop += nShrinkBy; - nRight -= nShrinkBy; + if (!mbWidthEmpty) + nRight -= nShrinkBy; nBottom -= nShrinkBy; } diff --git a/sc/source/ui/view/gridwin.cxx b/sc/source/ui/view/gridwin.cxx index e043cfc4d857..0b17e43f42b9 100644 --- a/sc/source/ui/view/gridwin.cxx +++ b/sc/source/ui/view/gridwin.cxx @@ -6001,40 +6001,43 @@ void ScGridWindow::UpdateCursorOverlay() long nSizeYPix; pViewData->GetMergeSizePixel( nX, nY, nSizeXPix, nSizeYPix ); - if (bLayoutRTL) - aScrPos.AdjustX( -(nSizeXPix - 2) ); // move instead of mirroring + if (nSizeXPix>1 && nSizeYPix>1) + { + if (bLayoutRTL) + aScrPos.AdjustX( -(nSizeXPix - 2) ); // move instead of mirroring - // show the cursor as 4 (thin) rectangles - tools::Rectangle aRect(aScrPos, Size(nSizeXPix - 1, nSizeYPix - 1)); + // show the cursor as 4 (thin) rectangles + tools::Rectangle aRect(aScrPos, Size(nSizeXPix - 1, nSizeYPix - 1)); - float fScaleFactor = GetDPIScaleFactor(); + float fScaleFactor = GetDPIScaleFactor(); - long aCursorWidth = 1 * fScaleFactor; + long aCursorWidth = 1 * fScaleFactor; - tools::Rectangle aLeft = aRect; - aLeft.AdjustTop( -aCursorWidth ); - aLeft.AdjustBottom(aCursorWidth ); - aLeft.SetRight( aLeft.Left() ); - aLeft.AdjustLeft( -aCursorWidth ); + tools::Rectangle aLeft = aRect; + aLeft.AdjustTop( -aCursorWidth ); + aLeft.AdjustBottom(aCursorWidth ); + aLeft.SetRight( aLeft.Left() ); + aLeft.AdjustLeft( -aCursorWidth ); - tools::Rectangle aRight = aRect; - aRight.AdjustTop( -aCursorWidth ); - aRight.AdjustBottom(aCursorWidth ); - aRight.SetLeft( aRight.Right() ); - aRight.AdjustRight(aCursorWidth ); + tools::Rectangle aRight = aRect; + aRight.AdjustTop( -aCursorWidth ); + aRight.AdjustBottom(aCursorWidth ); + aRight.SetLeft( aRight.Right() ); + aRight.AdjustRight(aCursorWidth ); - tools::Rectangle aTop = aRect; - aTop.SetBottom( aTop.Top() ); - aTop.AdjustTop( -aCursorWidth ); + tools::Rectangle aTop = aRect; + aTop.SetBottom( aTop.Top() ); + aTop.AdjustTop( -aCursorWidth ); - tools::Rectangle aBottom = aRect; - aBottom.SetTop( aBottom.Bottom() ); - aBottom.AdjustBottom(aCursorWidth ); + tools::Rectangle aBottom = aRect; + aBottom.SetTop( aBottom.Bottom() ); + aBottom.AdjustBottom(aCursorWidth ); - aPixelRects.push_back(aLeft); - aPixelRects.push_back(aRight); - aPixelRects.push_back(aTop); - aPixelRects.push_back(aBottom); + aPixelRects.push_back(aLeft); + aPixelRects.push_back(aRight); + aPixelRects.push_back(aTop); + aPixelRects.push_back(aBottom); + } } } diff --git a/sd/source/filter/eppt/escherex.cxx b/sd/source/filter/eppt/escherex.cxx index 5032c27210b6..4b2adb3ee3bd 100644 --- a/sd/source/filter/eppt/escherex.cxx +++ b/sd/source/filter/eppt/escherex.cxx @@ -220,9 +220,10 @@ sal_uInt32 PptEscherEx::EnterGroup( ::tools::Rectangle const * pBoundRect, SvMem OpenContainer( ESCHER_SpContainer ); AddAtom( 16, ESCHER_Spgr, 1 ); PtReplaceOrInsert( ESCHER_Persist_Grouping_Snap | mnGroupLevel, mpOutStrm->Tell() ); + // FIXME what to do with empty rectangles? mpOutStrm ->WriteInt32( aRect.Left() ) // bounding box for the grouped shapes to which they are attached .WriteInt32( aRect.Top() ) - .WriteInt32( aRect.Right() ) + .WriteInt32( aRect.IsWidthEmpty() ? -32767 : aRect.Right() ) .WriteInt32( aRect.Bottom() ); nShapeId = GenerateShapeId(); diff --git a/svtools/source/control/tabbar.cxx b/svtools/source/control/tabbar.cxx index 8ee61e42cb61..a14b16300b8b 100644 --- a/svtools/source/control/tabbar.cxx +++ b/svtools/source/control/tabbar.cxx @@ -864,7 +864,7 @@ void TabBar::ImplShowPage( sal_uInt16 nPos ) auto& pItem = mpImpl->mpItemList[nPos]; if (nPos < mnFirstPos) SetFirstPageId( pItem->mnId ); - else if (pItem->maRect.Right() > nWidth) + else if (!pItem->maRect.IsEmpty() && pItem->maRect.Right() > nWidth) { while (pItem->maRect.Right() > nWidth) { @@ -1868,8 +1868,8 @@ void TabBar::SetCurPageId(sal_uInt16 nPageId) if (pItem->maRect.IsEmpty()) ImplFormat(); - while ((mbMirrored ? (pItem->maRect.Left() < mnOffX) : (pItem->maRect.Right() > nWidth)) || - pItem->maRect.IsEmpty()) + while (pItem->maRect.IsEmpty() || + (mbMirrored ? (pItem->maRect.Left() < mnOffX) : (pItem->maRect.Right() > nWidth))) { sal_uInt16 nNewPos = mnFirstPos + 1; // assure at least the actual tabpages are visible as first tabpage diff --git a/svx/source/sdr/contact/objectcontactofpageview.cxx b/svx/source/sdr/contact/objectcontactofpageview.cxx index 3bda11b111f6..4961d4610c34 100644 --- a/svx/source/sdr/contact/objectcontactofpageview.cxx +++ b/svx/source/sdr/contact/objectcontactofpageview.cxx @@ -213,6 +213,9 @@ namespace sdr aViewRange.transform(rTargetOutDev.GetInverseViewTransformation()); } + if (aViewRange.isEmpty()) + return; + // update local ViewInformation2D const drawinglayer::geometry::ViewInformation2D aNewViewInformation2D( basegfx::B2DHomMatrix(), diff --git a/sw/source/core/view/vdraw.cxx b/sw/source/core/view/vdraw.cxx index 6c844c74a634..abaf3f8e28fe 100644 --- a/sw/source/core/view/vdraw.cxx +++ b/sw/source/core/view/vdraw.cxx @@ -204,7 +204,7 @@ void SwViewShellImp::NotifySizeChg( const Size &rNewSz ) bool bCheckDrawObjs = false; if ( aDocRect != rOldWork ) { - if ( rOldWork.Bottom() > aDocRect.Bottom() || rOldWork.Right() > aDocRect.Right()) + if ( !rOldWork.IsEmpty() && (rOldWork.Bottom() > aDocRect.Bottom() || rOldWork.Right() > aDocRect.Right())) bCheckDrawObjs = true; GetDrawView()->SetWorkArea( aDocRect ); } diff --git a/sw/source/uibase/uiview/viewport.cxx b/sw/source/uibase/uiview/viewport.cxx index 2fa7e12f5afe..bebcaa1317a2 100644 --- a/sw/source/uibase/uiview/viewport.cxx +++ b/sw/source/uibase/uiview/viewport.cxx @@ -316,9 +316,11 @@ void SwView::SetVisArea( const Point &rPt, bool bUpdateScrollbar ) const long lXDiff = m_aVisArea.Left() - aPt.X(); const long lYDiff = m_aVisArea.Top() - aPt.Y(); - SetVisArea( tools::Rectangle( aPt, - Point( m_aVisArea.Right() - lXDiff, m_aVisArea.Bottom() - lYDiff ) ), - bUpdateScrollbar); + tools::Rectangle aNewVisArea(m_aVisArea); + aNewVisArea.SetPos(aPt); + aNewVisArea.AdjustRight(-lXDiff); + aNewVisArea.AdjustBottom(-lYDiff); + SetVisArea( aNewVisArea, bUpdateScrollbar); } void SwView::CheckVisArea() diff --git a/tools/source/generic/gen.cxx b/tools/source/generic/gen.cxx index 3593801579ac..6438405c99e2 100644 --- a/tools/source/generic/gen.cxx +++ b/tools/source/generic/gen.cxx @@ -55,11 +55,20 @@ OString Pair::toString() const void tools::Rectangle::SetSize( const Size& rSize ) { if ( rSize.Width() < 0 ) + { nRight = nLeft + rSize.Width() +1; + mbWidthEmpty = false; + } else if ( rSize.Width() > 0 ) + { nRight = nLeft + rSize.Width() -1; + mbWidthEmpty = false; + } else - nRight = RECT_EMPTY; + { + nRight = 0; + mbWidthEmpty = true; + } if ( rSize.Height() < 0 ) nBottom = nTop + rSize.Height() +1; @@ -72,11 +81,20 @@ void tools::Rectangle::SetSize( const Size& rSize ) void tools::Rectangle::SaturatingSetSize(const Size& rSize) { if (rSize.Width() < 0) + { nRight = o3tl::saturating_add(nLeft, (rSize.Width() + 1)); + mbWidthEmpty = false; + } else if ( rSize.Width() > 0 ) + { nRight = o3tl::saturating_add(nLeft, (rSize.Width() - 1)); + mbWidthEmpty = false; + } else - nRight = RECT_EMPTY; + { + nRight = 0; + mbWidthEmpty = true; + } if ( rSize.Height() < 0 ) nBottom = o3tl::saturating_add(nTop, (rSize.Height() + 1)); @@ -88,7 +106,8 @@ void tools::Rectangle::SaturatingSetSize(const Size& rSize) void tools::Rectangle::SaturatingSetX(long x) { - nRight = o3tl::saturating_add(nRight, x - nLeft); + if (!mbWidthEmpty) + nRight = o3tl::saturating_add(nRight, x - nLeft); nLeft = x; } @@ -146,7 +165,7 @@ tools::Rectangle& tools::Rectangle::Intersection( const tools::Rectangle& rRect void tools::Rectangle::Justify() { - if ( (nRight < nLeft) && (nRight != RECT_EMPTY) ) + if ( (nRight < nLeft) && !mbWidthEmpty ) { std::swap(nLeft, nRight); } @@ -206,8 +225,9 @@ SvStream& ReadRectangle( SvStream& rIStream, tools::Rectangle& rRect ) rRect.nLeft = nTmpL; rRect.nTop = nTmpT; - rRect.nRight = nTmpR; + rRect.nRight = nTmpR == Rectangle::RECT_EMPTY ? 0 : nTmpR; rRect.nBottom = nTmpB; + rRect.mbWidthEmpty = nTmpR == Rectangle::RECT_EMPTY; return rIStream; } @@ -216,7 +236,7 @@ SvStream& WriteRectangle( SvStream& rOStream, const tools::Rectangle& rRect ) { rOStream.WriteInt32( rRect.nLeft ) .WriteInt32( rRect.nTop ) - .WriteInt32( rRect.nRight ) + .WriteInt32( rRect.mbWidthEmpty ? Rectangle::RECT_EMPTY : rRect.nRight ) .WriteInt32( rRect.nBottom ); return rOStream; diff --git a/vcl/osx/salnativewidgets.cxx b/vcl/osx/salnativewidgets.cxx index ad1362d438de..481d7a90e5fe 100644 --- a/vcl/osx/salnativewidgets.cxx +++ b/vcl/osx/salnativewidgets.cxx @@ -1017,6 +1017,8 @@ bool AquaSalGraphics::getNativeControlRegion( ControlType nType, ControlPart nPa tools::Rectangle &rNativeBoundingRegion, tools::Rectangle &rNativeContentRegion ) { + if (rControlRegion.IsEmpty()) // nothing to do + return false; bool toReturn = false; tools::Rectangle aCtrlBoundRect( rControlRegion ); diff --git a/vcl/source/control/tabctrl.cxx b/vcl/source/control/tabctrl.cxx index d5b9eeeeacfa..eeede1ae1e1c 100644 --- a/vcl/source/control/tabctrl.cxx +++ b/vcl/source/control/tabctrl.cxx @@ -2123,7 +2123,7 @@ Size TabControl::calculateRequisition() const tools::Rectangle aTabRect = pThis->ImplGetTabRect(nPos, aOptimalPageSize.Width(), LONG_MAX); if (aTabRect.Bottom() > nTabLabelsBottom) nTabLabelsBottom = aTabRect.Bottom(); - if (aTabRect.Right() > nTabLabelsRight) + if (!aTabRect.IsEmpty() && aTabRect.Right() > nTabLabelsRight) nTabLabelsRight = aTabRect.Right(); } diff --git a/vcl/source/gdi/mtfxmldump.cxx b/vcl/source/gdi/mtfxmldump.cxx index 8c168a89d4c4..3f681a08a674 100644 --- a/vcl/source/gdi/mtfxmldump.cxx +++ b/vcl/source/gdi/mtfxmldump.cxx @@ -459,7 +459,7 @@ void writeRectangle(tools::XmlWriter& rWriter, tools::Rectangle const& rRectangl { rWriter.attribute("left", rRectangle.Left()); rWriter.attribute("top", rRectangle.Top()); - rWriter.attribute("right", rRectangle.Right()); + rWriter.attribute("right", rRectangle.IsWidthEmpty() ? -32767 : rRectangle.Right()); rWriter.attribute("bottom", rRectangle.Bottom()); } diff --git a/vcl/source/outdev/rect.cxx b/vcl/source/outdev/rect.cxx index 67343278a1be..14d341ac6b8f 100644 --- a/vcl/source/outdev/rect.cxx +++ b/vcl/source/outdev/rect.cxx @@ -376,7 +376,8 @@ BmpMirrorFlags AdjustTwoRect( SalTwoRect& rTwoRect, const Size& rSizePix ) void AdjustTwoRect( SalTwoRect& rTwoRect, const tools::Rectangle& rValidSrcRect ) { - if( ( rTwoRect.mnSrcX < rValidSrcRect.Left() ) || ( rTwoRect.mnSrcX >= rValidSrcRect.Right() ) || + long right = rValidSrcRect.IsEmpty() ? rValidSrcRect.Left() : rValidSrcRect.Right(); + if( ( rTwoRect.mnSrcX < rValidSrcRect.Left() ) || ( rTwoRect.mnSrcX >= right ) || ( rTwoRect.mnSrcY < rValidSrcRect.Top() ) || ( rTwoRect.mnSrcY >= rValidSrcRect.Bottom() ) || ( ( rTwoRect.mnSrcX + rTwoRect.mnSrcWidth ) > rValidSrcRect.Right() ) || ( ( rTwoRect.mnSrcY + rTwoRect.mnSrcHeight ) > rValidSrcRect.Bottom() ) ) diff --git a/vcl/source/treelist/treelistbox.cxx b/vcl/source/treelist/treelistbox.cxx index f42aac4983af..b91fb5552d61 100644 --- a/vcl/source/treelist/treelistbox.cxx +++ b/vcl/source/treelist/treelistbox.cxx @@ -2770,7 +2770,7 @@ void SvTreeListBox::PaintEntry1(SvTreeListEntry& rEntry, long nLine, vcl::Render { rRenderContext.SetFillColor(aBackgroundColor); // this case may occur for smaller horizontal resizes - if (aRect.Left() < aRect.Right()) + if (!aRect.IsEmpty() && (aRect.Left() < aRect.Right())) rRenderContext.DrawRect(aRect); } } diff --git a/vcl/win/gdi/salnativewidgets-luna.cxx b/vcl/win/gdi/salnativewidgets-luna.cxx index 422a86c27045..1b49bfba61ad 100644 --- a/vcl/win/gdi/salnativewidgets-luna.cxx +++ b/vcl/win/gdi/salnativewidgets-luna.cxx @@ -1155,6 +1155,9 @@ bool WinSalGraphics::drawNativeControl( ControlType nType, bool bOk = false; HTHEME hTheme = nullptr; + if (rControlRegion.IsEmpty()) // nothing to do + return true; + tools::Rectangle buttonRect = rControlRegion; tools::Rectangle cacheRect = rControlRegion; Size keySize = cacheRect.GetSize(); -- cgit