Export to PNG: use proper dialog and filter options, tdf#108317

... and not the crude JPG ones.

The com.sun.star.svtools.SvFilterOptionsDialog service has all we need,
so teach it to cope with non-Graphics source documents and let
ExportDialog handle that as well, just the actual rendering needs to go
via GraphicExportFilter (and effectively DocumentToGraphicRenderer), so
don't let that overwrite the properties set by the filter dialog.
Switching to the dialog then is just a matter of changing the
UIComponent in filter/source/config/fragments/filters/calc_png_Export

The same mechanism probably could be used by Writer as well by adjusting
filter/source/config/fragments/filters/writer_png_Export.xcu and maybe
filter/source/config/fragments/filters/writer_jpg_Export.xcu
in which case the GraphicExportOptionsDialog likely would be moot
then.

Also, it looks like a
filter/source/config/fragments/filters/calc_jpg_Export.xcu
(which doesn't exist yet) could be possible using the same mechanism.

Change-Id: I1fb9b33a6490dc39d7591b2b5913be182bb820e5
Reviewed-on: https://gerrit.libreoffice.org/42421
Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Eike Rathke <erack@redhat.com>

3 files changed, 57 insertions, 13 deletions

diff --git a/svtools/source/filter/SvFilterOptionsDialog.cxx b/svtools/source/filter/SvFilterOptionsDialog.cxx
index 134a09ee1fdc..e5bd7ab7e392 100644
--- a/svtools/source/filter/SvFilterOptionsDialog.cxx
+++ b/svtools/source/filter/SvFilterOptionsDialog.cxx
@@ -72,7 +72,8 @@ class SvFilterOptionsDialog : public cppu::WeakImplHelper
 
     OUString        maDialogTitle;
     FieldUnit       meFieldUnit;
-    bool        mbExportSelection;
+    bool            mbExportSelection;
+    bool            mbGraphicsSource;
 
 public:
 
@@ -106,7 +107,8 @@ public:
 SvFilterOptionsDialog::SvFilterOptionsDialog( const uno::Reference< uno::XComponentContext >& rxContext ) :
     mxContext           ( rxContext ),
     meFieldUnit         ( FUNIT_CM ),
-    mbExportSelection   ( false )
+    mbExportSelection   ( false ),
+    mbGraphicsSource    ( true )
 {
 }
 
@@ -198,8 +200,9 @@ sal_Int16 SvFilterOptionsDialog::execute()
             OUString aStr;
             maMediaDescriptor[ j ].Value >>= aStr;
             aInternalFilterName = aStr;
-            aInternalFilterName = aInternalFilterName.replaceAll( "draw_", "" );
-            aInternalFilterName = aInternalFilterName.replaceAll( "impress_", "" );
+            aInternalFilterName = aInternalFilterName.replaceFirst( "draw_", "" );
+            aInternalFilterName = aInternalFilterName.replaceFirst( "impress_", "" );
+            aInternalFilterName = aInternalFilterName.replaceFirst( "calc_", "" );
             break;
        }
         else if ( rName == "Graphic" )
@@ -223,7 +226,8 @@ sal_Int16 SvFilterOptionsDialog::execute()
             aFltCallDlgPara.aFilterData = maFilterDataSequence;
             aFltCallDlgPara.aFilterExt = aGraphicFilter.GetExportFormatShortName( nFormat );
             bool bIsPixelFormat( aGraphicFilter.IsExportPixelFormat( nFormat ) );
-            if ( ScopedVclPtrInstance<ExportDialog>( aFltCallDlgPara, mxContext, mxSourceDocument, mbExportSelection, bIsPixelFormat, xGraphic )->Execute() == RET_OK )
+            if ( ScopedVclPtrInstance<ExportDialog>( aFltCallDlgPara, mxContext, mxSourceDocument, mbExportSelection,
+                        bIsPixelFormat, mbGraphicsSource, xGraphic )->Execute() == RET_OK )
                 nRet = ui::dialogs::ExecutableDialogResults::OK;
 
             // taking the out parameter from the dialog
@@ -238,6 +242,8 @@ void SvFilterOptionsDialog::setSourceDocument( const uno::Reference< lang::XComp
 {
     mxSourceDocument = xDoc;
 
+    mbGraphicsSource = true;    // default Draw and Impress like it was before
+
     // try to set the corresponding metric unit
     OUString aConfigPath;
     uno::Reference< lang::XServiceInfo > xServiceInfo
@@ -248,6 +254,12 @@ void SvFilterOptionsDialog::setSourceDocument( const uno::Reference< lang::XComp
             aConfigPath = "Office.Impress/Layout/Other/MeasureUnit";
         else if ( xServiceInfo->supportsService("com.sun.star.drawing.DrawingDocument") )
             aConfigPath = "Office.Draw/Layout/Other/MeasureUnit";
+        else
+        {
+            mbGraphicsSource = false;
+            if ( xServiceInfo->supportsService("com.sun.star.sheet.SpreadsheetDocument") )
+                aConfigPath = "Office.Calc/Layout/Other/MeasureUnit";
+        }
         if ( !aConfigPath.isEmpty() )
         {
             FilterConfigItem aConfigItem( aConfigPath );
diff --git a/svtools/source/filter/exportdialog.cxx b/svtools/source/filter/exportdialog.cxx
index cd2e84e2cd95..db1c77e2b38e 100644
--- a/svtools/source/filter/exportdialog.cxx
+++ b/svtools/source/filter/exportdialog.cxx
@@ -24,6 +24,7 @@
 #include <vcl/FilterConfigItem.hxx>
 #include <svtools/strings.hrc>
 #include <svtools/svtresid.hxx>
+#include <svtools/DocumentToGraphicRenderer.hxx>
 #include <com/sun/star/awt/Size.hpp>
 #include <com/sun/star/drawing/GraphicExportFilter.hpp>
 #include <com/sun/star/drawing/XDrawView.hpp>
@@ -316,7 +317,7 @@ awt::Size ExportDialog::GetOriginalSize()
             aShapesRange = basegfx::B2DRange( 0, 0, nWidth, nHeight );
         }
     }
-    else
+    else if (mxShapes.is() || mxShape.is())
     {
         uno::Reference< graphic::XPrimitiveFactory2D > xPrimitiveFactory = graphic::PrimitiveFactory2D::create( mxContext );
 
@@ -347,6 +348,13 @@ awt::Size ExportDialog::GetOriginalSize()
             }
         }
     }
+    else if (!mbGraphicsSource)
+    {
+        DocumentToGraphicRenderer aRenderer( mxSourceDocument, mbExportSelection);
+        const sal_Int32 nCurrentPage = aRenderer.getCurrentPageWriter();
+        const Size aSize = aRenderer.getDocumentSizeIn100mm( nCurrentPage);
+        return awt::Size( aSize.Width(), aSize.Height());
+    }
     return awt::Size( static_cast<sal_Int32>(aShapesRange.getWidth()), static_cast<sal_Int32>(aShapesRange.getHeight()) );
 }
 
@@ -369,11 +377,13 @@ void ExportDialog::GetGraphicSource()
                     if ( xSelectionSupplier.is() )
                     {
                         uno::Any aAny( xSelectionSupplier->getSelection() );
-                        if ( ! ( aAny >>= mxShapes ) )
-                            aAny >>= mxShape;
+                        if ( aAny >>= mxShapes )
+                            mbGraphicsSource = true;
+                        else if ( aAny >>= mxShape )
+                            mbGraphicsSource = true;
                     }
                 }
-                if ( !mxShape.is() && !mxShapes.is() )
+                if ( !mxShape.is() && !mxShapes.is() && mbGraphicsSource )
                 {
                     uno::Reference< drawing::XDrawView > xDrawView( xController, uno::UNO_QUERY );
                     if ( xDrawView.is() )
@@ -385,6 +395,9 @@ void ExportDialog::GetGraphicSource()
                         }
                     }
                 }
+                // For !mbGraphicsSource the mxSourceDocument is used, from
+                // which XRenderable can query XController and
+                // XSelectionSupplier the same.
             }
         }
     }
@@ -417,9 +430,26 @@ void ExportDialog::GetGraphicStream()
             mpTempStream = new SvMemoryStream();
             maBitmap = Bitmap();
 
-            if ( mxGraphic.is() )
+            uno::Reference< graphic::XGraphic > xGraphic;
+            if (!mbGraphicsSource && !mxGraphic.is())
+            {
+                // Create a Graphic to be used below.
+                DocumentToGraphicRenderer aRenderer( mxSourceDocument, mbExportSelection);
+                const sal_Int32 nCurrentPage = aRenderer.getCurrentPageWriter();
+                const Size aDocumentSizePixel = aRenderer.getDocumentSizeInPixels( nCurrentPage);
+
+                const Size aTargetSizePixel( mbIsPixelFormat ?
+                        Size( maSize.Width, maSize.Height) :
+                        aDocumentSizePixel );
+
+                Graphic aGraphic( aRenderer.renderToGraphic( nCurrentPage,
+                            aDocumentSizePixel, aTargetSizePixel, COL_WHITE));
+                xGraphic = aGraphic.GetXGraphic();
+            }
+
+            if ( mxGraphic.is() || xGraphic.is() )
             {
-                Graphic aGraphic( mxGraphic );
+                Graphic aGraphic( mxGraphic.is() ? mxGraphic : xGraphic );
 
                 if ( aGraphic.GetType() == GraphicType::Bitmap )
                 {
@@ -554,7 +584,7 @@ bool ExportDialog::IsTempExportAvailable() const
 ExportDialog::ExportDialog(FltCallDialogParameter& rPara,
     const css::uno::Reference< css::uno::XComponentContext >& rxContext,
     const css::uno::Reference< css::lang::XComponent >& rxSourceDocument,
-    bool bExportSelection, bool bIsPixelFormat,
+    bool bExportSelection, bool bIsPixelFormat, bool bGraphicsSource,
     const css::uno::Reference< css::graphic::XGraphic >& rxGraphic)
     : ModalDialog(rPara.pWindow, "GraphicExportDialog", "svt/ui/graphicexport.ui")
     , mrFltCallPara(rPara)
@@ -580,6 +610,7 @@ ExportDialog::ExportDialog(FltCallDialogParameter& rPara,
     , maOriginalSize(awt::Size(0, 0))
     , mbIsPixelFormat(bIsPixelFormat)
     , mbExportSelection(bExportSelection)
+    , mbGraphicsSource(bGraphicsSource)
 {
     get(mpMfSizeX, "widthmf-nospin");
     get(mpMfSizeY, "heightmf-nospin");
diff --git a/svtools/source/filter/exportdialog.hxx b/svtools/source/filter/exportdialog.hxx
index 538a30d3e4bc..5c50660cb2e5 100644
--- a/svtools/source/filter/exportdialog.hxx
+++ b/svtools/source/filter/exportdialog.hxx
@@ -126,6 +126,7 @@ private:
 
     bool                mbIsPixelFormat;
     bool                mbExportSelection;
+    bool                mbGraphicsSource;   // whether source document is graphics (Draw, Impress) or not (Calc, Writer)
 
     sal_Int32           mnInitialResolutionUnit;
 
@@ -173,7 +174,7 @@ public:
                         ExportDialog( FltCallDialogParameter& rPara,
                             const css::uno::Reference< css::uno::XComponentContext >& rxContext,
                             const css::uno::Reference< css::lang::XComponent >& rxSourceDocument,
-                            bool bExportSelection, bool bIsExportVectorFormat,
+                            bool bExportSelection, bool bIsExportVectorFormat, bool bGraphicsSource,
                             const css::uno::Reference< css::graphic::XGraphic >& rxGraphic = nullptr);
                         virtual ~ExportDialog() override;
                         virtual void dispose() override;