fdo#39440 reduce scope of local variables

This addresses some cppcheck warnings.
in addition: simplified some simple bool checks:
    "if (!bVar)" instead of "if(bVar == false)"

Change-Id: I609b4a3ee7d43bbeeb91ba141af2c90511d0c8d7
Reviewed-on: https://gerrit.libreoffice.org/13455
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
Tested-by: Noel Grandin <noelgrandin@gmail.com>

filter/source/graphicfilter/eos2met/eos2met.cxx

@@ -308,11 +308,9 @@ void METWriter::WriteClipRect( const Rectangle& rRect )
 
 void METWriter::CountActionsAndBitmaps(const GDIMetaFile * pMTF)
 {
-    const MetaAction* pMA;
-
     for( size_t nAction = 0, nActionCount=pMTF->GetActionSize(); nAction < nActionCount; nAction++ )
     {
-        pMA =  pMTF->GetAction(nAction);
+        const MetaAction* pMA =  pMTF->GetAction(nAction);
 
         switch (pMA->GetType())
         {
@@ -398,16 +396,15 @@ void METWriter::WriteFieldId(sal_uInt32 nId)
 void METWriter::CreateChrSets(const GDIMetaFile * pMTF)
 {
     size_t nAction, nActionCount;
-    const MetaAction * pMA;
 
-    if (bStatus==false)
+    if (!bStatus)
         return;
 
     nActionCount = pMTF->GetActionSize();
 
     for (nAction = 0; nAction < nActionCount; nAction++)
     {
-        pMA = pMTF->GetAction(nAction);
+        const MetaAction * pMA = pMTF->GetAction(nAction);
 
         switch (pMA->GetType())
         {
@@ -734,14 +731,12 @@ void METWriter::WriteImageObject(const Bitmap & rBitmap)
 
 void METWriter::WriteImageObjects(const GDIMetaFile * pMTF)
 {
-    const MetaAction*   pMA;
+    if (!bStatus)
-
-    if (bStatus==false)
         return;
 
     for ( size_t nAction = 0, nActionCount = pMTF->GetActionSize(); nAction < nActionCount; nAction++)
     {
-        pMA = pMTF->GetAction(nAction);
+        const MetaAction* pMA = pMTF->GetAction(nAction);
 
         switch (pMA->GetType())
         {
@@ -808,7 +803,7 @@ void METWriter::WriteImageObjects(const GDIMetaFile * pMTF)
             break;
         }
 
-        if (bStatus==false)
+        if (!bStatus)
             break;
     }
 
@@ -818,7 +813,7 @@ void METWriter::WriteImageObjects(const GDIMetaFile * pMTF)
 
 void METWriter::WriteDataDescriptor(const GDIMetaFile *)
 {
-    if (bStatus==false)
+    if (!bStatus)
         return;
 
     WriteFieldIntroducer(0,DscGrfObjMagic,0,0);

filter/source/graphicfilter/epbm/epbm.cxx

@@ -160,10 +160,9 @@ void PBMWriter::ImplWriteBody()
     }
     else
     {
-        int nxCount;
         for ( sal_uLong y = 0; y < mnHeight; y++ )
         {
-            nxCount = 70;
+            int nxCount = 70;
             for ( sal_uLong x = 0; x < mnWidth; x++ )
             {
                 if (!( --nxCount ) )

filter/source/graphicfilter/epict/epict.cxx

@@ -195,13 +195,12 @@ void PictWriter::MayCallback()
 void PictWriter::CountActionsAndBitmaps(const GDIMetaFile & rMTF)
 {
     size_t              nAction, nActionCount;
-    const MetaAction*   pMA;
 
     nActionCount = rMTF.GetActionSize();
 
     for (nAction=0; nAction < nActionCount; nAction++)
     {
-        pMA = rMTF.GetAction( nAction );
+        const MetaAction* pMA = rMTF.GetAction( nAction );
 
         switch( pMA->GetType() )
         {
@@ -223,7 +222,7 @@ void PictWriter::CountActionsAndBitmaps(const GDIMetaFile & rMTF)
 Polygon PictWriter::PolyPolygonToPolygon(const tools::PolyPolygon & rPolyPoly)
 {
     sal_uInt16 nCount,nSize1,nSize2,np,i1,i2,i3,nBestIdx1,nBestIdx2;
-    long nDistSqr,nBestDistSqr, nCountdownTests;
+    long nDistSqr;
     Point aP1,aPRel;
     Polygon aPoly1, aPoly2, aPoly3;
 
@@ -244,8 +243,8 @@ Polygon PictWriter::PolyPolygonToPolygon(const tools::PolyPolygon & rPolyPoly)
         // pictures would need infinite time to export, we limit the number of test
         // by the number of 1000 and cancel the search if necessary preliminarily.
         // The result of this will not be wrong but rather not so beautiful.
-        nCountdownTests=1000;
+        long nCountdownTests = 1000;
-        nBestDistSqr=0x7fffffff;
+        long nBestDistSqr = 0x7fffffff;
         nBestIdx1=0;
         nBestIdx2=0;
         for (i1=0; i1<nSize1; i1++) {

filter/source/graphicfilter/eps/eps.cxx

@@ -542,13 +542,12 @@ void PSWriter::ImplWriteProlog( const Graphic* pPreview )
                 nLines++;
             nLines *= aSizeBitmap.Height();
             ImplWriteLong( nLines );
-            char  nVal;
             sal_Int32 nX, nY, nCount2, nCount = 4;
             const BitmapColor aBlack( pAcc->GetBestMatchingColor( Color( COL_BLACK ) ) );
             for ( nY = 0; nY < aSizeBitmap.Height(); nY++ )
             {
                 nCount2 = 0;
-                nVal = 0;
+                char nVal = 0;
                 for ( nX = 0; nX < aSizeBitmap.Width(); nX++ )
                 {
                     if ( !nCount2 )

filter/source/graphicfilter/icgm/actimpr.cxx

@@ -53,10 +53,10 @@ CGMImpressOutAct::CGMImpressOutAct( CGM& rCGM, const uno::Reference< frame::XMod
         CGMOutAct       ( rCGM ),
         nFinalTextCount ( 0 )
 {
-    bool bStatRet = false;
-
     if ( mpCGM->mbStatus )
     {
+        bool bStatRet = false;
+
         uno::Reference< drawing::XDrawPagesSupplier >  aDrawPageSup( rModel, uno::UNO_QUERY );
         if( aDrawPageSup.is() )
         {

filter/source/graphicfilter/icgm/cgm.cxx

@@ -714,7 +714,6 @@ ImportCGM( OUString const & rFileName, uno::Reference< frame::XModel > const & r
 
     sal_uInt32  nStatus = 0;            // retvalue == 0 -> ERROR
                                         //          == 0xffrrggbb -> background color in the lower 24 bits
-    bool    bProgressBar = false;
 
     if( rXModel.is() )
     {
@@ -734,7 +733,7 @@ ImportCGM( OUString const & rFileName, uno::Reference< frame::XModel > const & r
 
                         sal_uInt32  nNext = 0;
                         sal_uInt32  nAdd = nInSize / 20;
-                        bProgressBar = aXStatInd.is();
+                        bool bProgressBar = aXStatInd.is();
                         if ( bProgressBar )
                             aXStatInd->start( "CGM Import" , nInSize );
 

filter/source/graphicfilter/icgm/class3.cxx

@@ -26,7 +26,6 @@
 void CGM::ImplDoClass3()
 {
     sal_uInt32  nUInteger;
-    long    nI0, nI1;
     switch ( mnElementID )
     {
         case 0x01 : /*VDC Integer Precision*/
@@ -42,8 +41,8 @@ void CGM::ImplDoClass3()
         case 0x02 : /*VDC Real Precision*/
         {
             nUInteger = ImplGetUI16();
-            nI0 = ImplGetI( pElement->nIntegerPrecision );  // exponent
+            const long nI0 = ImplGetI( pElement->nIntegerPrecision );  // exponent
-            nI1 = ImplGetI( pElement->nIntegerPrecision );  // mantisse
+            const long nI1 = ImplGetI( pElement->nIntegerPrecision );  // mantisse
             switch( nUInteger )
             {
                 case 0 :

filter/source/graphicfilter/idxf/dxf2mtf.cxx

@@ -75,10 +75,9 @@ DXFLineInfo DXF2GDIMetaFile::LTypeToDXFLineInfo(OString const& rLineType)
     }
     else {
         sal_Int32 i;
-        double x;
         aDXFLineInfo.eStyle = LINE_DASH;
         for (i=0; i < (pLT->nDashCount); i++) {
-            x = pLT->fDash[i] * pDXF->getGlobalLineTypeScale();
+            const double x = pLT->fDash[i] * pDXF->getGlobalLineTypeScale();
             if ( x >= 0.0 ) {
                 if ( aDXFLineInfo.nDotCount == 0 ) {
                     aDXFLineInfo.nDotCount ++;

filter/source/graphicfilter/ieps/ieps.cxx

@@ -539,7 +539,6 @@ GraphicImport( SvStream & rStream, Graphic & rGraphic, FilterConfigItem* )
     Graphic     aGraphic;
     bool    bRetValue = false;
     bool    bHasPreview = false;
-    bool    bGraphicLinkCreated = false;
     sal_uInt32  nSignature, nPSStreamPos, nPSSize;
     sal_uInt32  nSizeWMF = 0;
     sal_uInt32  nPosWMF = 0;
@@ -593,6 +592,8 @@ GraphicImport( SvStream & rStream, Graphic & rGraphic, FilterConfigItem* )
     if ( ImplSearchEntry( pHeader, (sal_uInt8*)"%!PS-Adobe", 10, 10 ) &&
         ImplSearchEntry( &pHeader[ 15 ], (sal_uInt8*)"EPS", 3, 3 ) )
     {
+        bool bGraphicLinkCreated = false;
+
         rStream.Seek( nPSStreamPos );
         sal_uInt8* pBuf = new sal_uInt8[ nPSSize ];
         if ( pBuf )
@@ -621,13 +622,12 @@ GraphicImport( SvStream & rStream, Graphic & rGraphic, FilterConfigItem* )
                             BitmapWriteAccess* pAcc = aBitmap.AcquireWriteAccess();
                             if ( pAcc )
                             {
-                                int  nBitsLeft;
                                 bool bIsValid = true;
                                 sal_uInt8 nDat = 0;
                                 char nByte;
                                 for ( long y = 0; bIsValid && ( y < nHeight ); y++ )
                                 {
-                                    nBitsLeft = 0;
+                                    int nBitsLeft = 0;
                                     for ( long x = 0; x < nWidth; x++ )
                                     {
                                         if ( --nBitsLeft < 0 )

filter/source/graphicfilter/ios2met/ios2met.cxx

@@ -1328,7 +1328,6 @@ void OS2METReader::ReadFilletSharp(bool bGivenPos, sal_uInt16 nOrderLen)
 void OS2METReader::ReadMarker(bool bGivenPos, sal_uInt16 nOrderLen)
 {
     sal_uInt16 i,nNumPoints;
-    long x,y;
 
     SetPen( aAttr.aMrkCol );
     SetRasterOp(aAttr.eMrkMix);
@@ -1344,7 +1343,8 @@ void OS2METReader::ReadMarker(bool bGivenPos, sal_uInt16 nOrderLen)
     if (!bGivenPos) nNumPoints++;
     for (i=0; i<nNumPoints; i++) {
         if (i!=0 || bGivenPos) aAttr.aCurPos=ReadPoint();
-        x=aAttr.aCurPos.X(); y=aAttr.aCurPos.Y();
+        const long x = aAttr.aCurPos.X();
+        const long y=aAttr.aCurPos.Y();
         aCalcBndRect.Union(Rectangle(x-5,y-5,x+5,y+5));
         switch (aAttr.nMrkSymbol) {
             case  2:   // PLUS