David Tardon
11 years ago
parent
12c9b32954
commit
dbb14963cf
@ -0,0 +1,156 @@
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From 6b127d40c7d57745bc602d9ff7914392f9d3b92b Mon Sep 17 00:00:00 2001
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From: David Tardon <dtardon@redhat.com>
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Date: Wed, 5 Feb 2014 10:55:25 +0100
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Subject: [PATCH] rhbz#1057977 avoid use of invalidated pointers
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Change-Id: Ib81f79da696b5e8002f5a2ddcf160903231dc3f1
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---
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include/vcl/outdev.hxx | 6 +++++
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vcl/source/gdi/outdev3.cxx | 59 +++++++++++++++++++++++++++++++++++++++++-----
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2 files changed, 59 insertions(+), 6 deletions(-)
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diff --git a/include/vcl/outdev.hxx b/include/vcl/outdev.hxx
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index 8a7c439..4223135 100644
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--- a/include/vcl/outdev.hxx
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+++ b/include/vcl/outdev.hxx
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@@ -537,9 +537,15 @@ protected:
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OutputDevice();
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private:
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+ typedef void ( OutputDevice::* FontUpdateHandler_t )( bool );
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+
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SAL_DLLPRIVATE OutputDevice( const OutputDevice& rOutDev );
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SAL_DLLPRIVATE OutputDevice& operator =( const OutputDevice& rOutDev );
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+ SAL_DLLPRIVATE void ImplClearFontData( bool bNewFontLists );
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+ SAL_DLLPRIVATE void ImplRefreshFontData( bool bNewFontLists );
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+ SAL_DLLPRIVATE static void ImplUpdateFontDataForAllFrames( FontUpdateHandler_t pHdl, bool bNewFontLists );
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+
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public:
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virtual ~OutputDevice();
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diff --git a/vcl/source/gdi/outdev3.cxx b/vcl/source/gdi/outdev3.cxx
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index 5c5dcf2..c347f71 100644
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--- a/vcl/source/gdi/outdev3.cxx
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+++ b/vcl/source/gdi/outdev3.cxx
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@@ -154,7 +154,7 @@ static void ImplRotatePos( long nOriginX, long nOriginY, long& rX, long& rY,
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}
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}
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-void OutputDevice::ImplUpdateFontData( bool bNewFontLists )
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+void OutputDevice::ImplClearFontData( const bool bNewFontLists )
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{
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// the currently selected logical font is no longer needed
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if ( mpFontEntry )
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@@ -205,6 +205,38 @@ void OutputDevice::ImplUpdateFontData( bool bNewFontLists )
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delete mpFontList;
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if( mpFontCache && mpFontCache != pSVData->maGDIData.mpScreenFontCache )
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delete mpFontCache;
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+ mpFontList = 0;
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+ mpFontCache = 0;
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+ }
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+ }
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+ }
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+ }
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+
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+ // also update child windows if needed
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+ if ( GetOutDevType() == OUTDEV_WINDOW )
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+ {
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+ Window* pChild = ((Window*)this)->mpWindowImpl->mpFirstChild;
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+ while ( pChild )
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+ {
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+ pChild->ImplClearFontData( true );
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+ pChild = pChild->mpWindowImpl->mpNext;
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+ }
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+ }
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+}
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+
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+void OutputDevice::ImplRefreshFontData( const bool bNewFontLists )
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+{
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+// if ( GetOutDevType() == OUTDEV_PRINTER || mpPDFWriter )
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+ {
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+ ImplSVData* pSVData = ImplGetSVData();
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+
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+ if ( bNewFontLists )
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+ {
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+ // we need a graphics
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+ if ( ImplGetGraphics() )
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+ {
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+ if( mpPDFWriter )
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+ {
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mpFontList = pSVData->maGDIData.mpScreenFontList->Clone( true, true );
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mpFontCache = new ImplFontCache();
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}
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@@ -222,16 +254,24 @@ void OutputDevice::ImplUpdateFontData( bool bNewFontLists )
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Window* pChild = ((Window*)this)->mpWindowImpl->mpFirstChild;
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while ( pChild )
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{
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- pChild->ImplUpdateFontData( true );
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+ pChild->ImplRefreshFontData( true );
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pChild = pChild->mpWindowImpl->mpNext;
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}
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}
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}
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+void OutputDevice::ImplUpdateFontData( bool bNewFontLists )
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+{
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+ ImplClearFontData( bNewFontLists );
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+ ImplRefreshFontData( bNewFontLists );
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+}
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+
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void OutputDevice::ImplUpdateAllFontData( bool bNewFontLists )
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{
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ImplSVData* pSVData = ImplGetSVData();
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+ ImplUpdateFontDataForAllFrames( &OutputDevice::ImplClearFontData, bNewFontLists );
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+
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// clear global font lists to have them updated
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pSVData->maGDIData.mpScreenFontCache->Invalidate();
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if ( bNewFontLists )
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@@ -250,16 +290,23 @@ void OutputDevice::ImplUpdateAllFontData( bool bNewFontLists )
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}
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}
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+ ImplUpdateFontDataForAllFrames( &OutputDevice::ImplRefreshFontData, bNewFontLists );
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+}
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+
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+void OutputDevice::ImplUpdateFontDataForAllFrames( const FontUpdateHandler_t pHdl, const bool bNewFontLists )
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+{
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+ ImplSVData* const pSVData = ImplGetSVData();
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+
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// update all windows
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Window* pFrame = pSVData->maWinData.mpFirstFrame;
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while ( pFrame )
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{
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- pFrame->ImplUpdateFontData( bNewFontLists );
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+ ( pFrame->*pHdl )( bNewFontLists );
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Window* pSysWin = pFrame->mpWindowImpl->mpFrameData->mpFirstOverlap;
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while ( pSysWin )
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{
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- pSysWin->ImplUpdateFontData( bNewFontLists );
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+ ( pSysWin->*pHdl )( bNewFontLists );
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pSysWin = pSysWin->mpWindowImpl->mpNextOverlap;
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}
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@@ -270,7 +317,7 @@ void OutputDevice::ImplUpdateAllFontData( bool bNewFontLists )
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VirtualDevice* pVirDev = pSVData->maGDIData.mpFirstVirDev;
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while ( pVirDev )
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{
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- pVirDev->ImplUpdateFontData( bNewFontLists );
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+ ( pVirDev->*pHdl )( bNewFontLists );
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pVirDev = pVirDev->mpNext;
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}
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@@ -278,7 +325,7 @@ void OutputDevice::ImplUpdateAllFontData( bool bNewFontLists )
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Printer* pPrinter = pSVData->maGDIData.mpFirstPrinter;
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while ( pPrinter )
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{
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- pPrinter->ImplUpdateFontData( bNewFontLists );
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+ ( pPrinter->*pHdl )( bNewFontLists );
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pPrinter = pPrinter->mpNext;
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}
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}
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--
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1.8.5.3
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