SkipImages option for PDF import

This option allows images and drawings to be skipped while importing
a PDF, the main reason was performance improvement where images were
not needed.

Change-Id: Ibca342ff6e7005bedf7b16869473832ce2576fb2
Reviewed-on: https://gerrit.libreoffice.org/14470
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

1 files changed, 45 insertions, 1 deletions

diff --git a/sdext/source/pdfimport/xpdfwrapper/pdfioutdev_gpl.cxx b/sdext/source/pdfimport/xpdfwrapper/pdfioutdev_gpl.cxx
index d3e39887e32e..cf19b30834a7 100644
--- a/sdext/source/pdfimport/xpdfwrapper/pdfioutdev_gpl.cxx
+++ b/sdext/source/pdfimport/xpdfwrapper/pdfioutdev_gpl.cxx
@@ -532,7 +532,8 @@ void PDFOutDev::printPath( GfxPath* pPath ) const
 PDFOutDev::PDFOutDev( PDFDoc* pDoc ) :
     m_pDoc( pDoc ),
     m_aFontMap(),
-    m_pUtf8Map( new UnicodeMap((char*)"UTF-8", gTrue, &mapUTF8) )
+    m_pUtf8Map( new UnicodeMap((char*)"UTF-8", gTrue, &mapUTF8) ),
+    m_bSkipImages(false)
 {
 }
 PDFOutDev::~PDFOutDev()
@@ -632,6 +633,8 @@ void PDFOutDev::updateCTM(GfxState* state,
 
 void PDFOutDev::updateLineDash(GfxState *state)
 {
+    if (m_bSkipImages)
+        return;
     assert(state);
 
     double* dashArray; int arrayLen; double startOffset;
@@ -649,36 +652,48 @@ void PDFOutDev::updateLineDash(GfxState *state)
 
 void PDFOutDev::updateFlatness(GfxState *state)
 {
+    if (m_bSkipImages)
+        return;
     assert(state);
     printf( "updateFlatness %d\n", state->getFlatness() );
 }
 
 void PDFOutDev::updateLineJoin(GfxState *state)
 {
+    if (m_bSkipImages)
+        return;
     assert(state);
     printf( "updateLineJoin %d\n", state->getLineJoin() );
 }
 
 void PDFOutDev::updateLineCap(GfxState *state)
 {
+    if (m_bSkipImages)
+        return;
     assert(state);
     printf( "updateLineCap %d\n", state->getLineCap() );
 }
 
 void PDFOutDev::updateMiterLimit(GfxState *state)
 {
+    if (m_bSkipImages)
+        return;
     assert(state);
     printf( "updateMiterLimit %f\n", normalize(state->getMiterLimit()) );
 }
 
 void PDFOutDev::updateLineWidth(GfxState *state)
 {
+    if (m_bSkipImages)
+        return;
     assert(state);
     printf( "updateLineWidth %f\n", normalize(state->getLineWidth()) );
 }
 
 void PDFOutDev::updateFillColor(GfxState *state)
 {
+    if (m_bSkipImages)
+        return;
     assert(state);
 
     GfxRGB aRGB;
@@ -693,6 +708,8 @@ void PDFOutDev::updateFillColor(GfxState *state)
 
 void PDFOutDev::updateStrokeColor(GfxState *state)
 {
+    if (m_bSkipImages)
+        return;
     assert(state);
 
     GfxRGB aRGB;
@@ -707,11 +724,15 @@ void PDFOutDev::updateStrokeColor(GfxState *state)
 
 void PDFOutDev::updateFillOpacity(GfxState *state)
 {
+    if (m_bSkipImages)
+        return;
     updateFillColor(state);
 }
 
 void PDFOutDev::updateStrokeOpacity(GfxState *state)
 {
+    if (m_bSkipImages)
+        return;
     updateStrokeColor(state);
 }
 
@@ -774,6 +795,8 @@ void PDFOutDev::updateRender(GfxState *state)
 
 void PDFOutDev::stroke(GfxState *state)
 {
+    if (m_bSkipImages)
+        return;
     assert(state);
 
     printf( "strokePath" );
@@ -783,6 +806,8 @@ void PDFOutDev::stroke(GfxState *state)
 
 void PDFOutDev::fill(GfxState *state)
 {
+    if (m_bSkipImages)
+        return;
     assert(state);
 
     printf( "fillPath" );
@@ -792,6 +817,8 @@ void PDFOutDev::fill(GfxState *state)
 
 void PDFOutDev::eoFill(GfxState *state)
 {
+    if (m_bSkipImages)
+        return;
     assert(state);
 
     printf( "eoFillPath" );
@@ -801,6 +828,8 @@ void PDFOutDev::eoFill(GfxState *state)
 
 void PDFOutDev::clip(GfxState *state)
 {
+    if (m_bSkipImages)
+        return;
     assert(state);
 
     printf( "clipPath" );
@@ -810,6 +839,8 @@ void PDFOutDev::clip(GfxState *state)
 
 void PDFOutDev::eoClip(GfxState *state)
 {
+    if (m_bSkipImages)
+        return;
     assert(state);
 
     printf( "eoClipPath" );
@@ -915,6 +946,8 @@ void PDFOutDev::drawImageMask(GfxState* pState, Object*, Stream* str,
 #endif
                               GBool /*inlineImg*/ )
 {
+    if (m_bSkipImages)
+        return;
     OutputBuffer aBuf; initBuf(aBuf);
 
     printf( "drawMask %d %d %d", width, height, invert );
@@ -944,6 +977,8 @@ void PDFOutDev::drawImage(GfxState*, Object*, Stream* str,
 #endif
                           int* maskColors, GBool /*inlineImg*/ )
 {
+    if (m_bSkipImages)
+        return;
     OutputBuffer aBuf; initBuf(aBuf);
     OutputBuffer aMaskBuf;
 
@@ -999,6 +1034,8 @@ void PDFOutDev::drawMaskedImage(GfxState*, Object*, Stream* str,
 #endif
                                )
 {
+    if (m_bSkipImages)
+        return;
     OutputBuffer aBuf;     initBuf(aBuf);
     printf( "drawImage %d %d 0", width, height );
     writePng_( aBuf, str, width, height, colorMap, maskStr, maskWidth, maskHeight, maskInvert, true );
@@ -1019,6 +1056,8 @@ void PDFOutDev::drawSoftMaskedImage(GfxState*, Object*, Stream* str,
 #endif
                                    )
 {
+    if (m_bSkipImages)
+        return;
     OutputBuffer aBuf;     initBuf(aBuf);
     printf( "drawImage %d %d 0", width, height );
     writePng_( aBuf, str, width, height, colorMap, maskStr, maskWidth, maskHeight, maskColorMap, true );
@@ -1031,6 +1070,11 @@ void PDFOutDev::setPageNum( int nNumPages )
     printf("setPageNum %d\n", nNumPages);
 }
 
+void PDFOutDev::setSkipImages( bool bSkipImages )
+{
+    m_bSkipImages = bSkipImages;
+}
+
 }
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */