Add image preffered DPI document setting, use it in Writer, Impress

This adds a "image preferred DPI" document setting, which is used
as a suggestion of the DPI that an image should have in the
document. This is currently used when the image is inserted into
the document (Writer, Impress/Draw) to resize it to the preferred
DPI value.

Change-Id: I3ee9d409257e3c6aa2ead05144ecbba7b3b916f6
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/126334
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>

4 files changed, 52 insertions, 9 deletions

diff --git a/sd/inc/drawdoc.hxx b/sd/inc/drawdoc.hxx
index 80a79955537f..aaed07cae960 100644
--- a/sd/inc/drawdoc.hxx
+++ b/sd/inc/drawdoc.hxx
@@ -187,6 +187,8 @@ private:
     bool mbEmbedFontScriptAsian : 1;
     bool mbEmbedFontScriptComplex : 1;
 
+    sal_Int32 mnImagePreferredDPI;
+
     SAL_DLLPRIVATE virtual css::uno::Reference< css::uno::XInterface > createUnoModel() override;
 
 public:
@@ -614,6 +616,9 @@ public:
     SAL_DLLPRIVATE void SetEmbedFontScriptAsian(bool bUse) { mbEmbedFontScriptAsian = bUse; }
     SAL_DLLPRIVATE void SetEmbedFontScriptComplex(bool bUse) { mbEmbedFontScriptComplex = bUse; }
 
+    sal_Int32 getImagePreferredDPI() { return mnImagePreferredDPI; }
+    void setImagePreferredDPI(sal_Int32 nValue) { mnImagePreferredDPI = nValue; }
+
     void dumpAsXml(xmlTextWriterPtr pWriter) const override;
 
 private:
diff --git a/sd/source/core/drawdoc.cxx b/sd/source/core/drawdoc.cxx
index 0fea961a6902..953afd909302 100644
--- a/sd/source/core/drawdoc.cxx
+++ b/sd/source/core/drawdoc.cxx
@@ -137,6 +137,7 @@ SdDrawDocument::SdDrawDocument(DocumentType eType, SfxObjectShell* pDrDocSh)
 , mbEmbedFontScriptLatin(true)
 , mbEmbedFontScriptAsian(true)
 , mbEmbedFontScriptComplex(true)
+, mnImagePreferredDPI(0)
 {
     mpDrawPageListWatcher.reset(new ImpDrawPageListWatcher(*this));
     mpMasterPageListWatcher.reset(new ImpMasterPageListWatcher(*this));
diff --git a/sd/source/ui/unoidl/UnoDocumentSettings.cxx b/sd/source/ui/unoidl/UnoDocumentSettings.cxx
index ec168b7e42d6..2515ea32eecc 100644
--- a/sd/source/ui/unoidl/UnoDocumentSettings.cxx
+++ b/sd/source/ui/unoidl/UnoDocumentSettings.cxx
@@ -148,6 +148,7 @@ enum SdDocumentSettingsPropertyHandles
     ,HANDLE_SLIDESPERHANDOUT, HANDLE_HANDOUTHORIZONTAL,
     HANDLE_EMBED_FONTS, HANDLE_EMBED_USED_FONTS,
     HANDLE_EMBED_LATIN_SCRIPT_FONTS, HANDLE_EMBED_ASIAN_SCRIPT_FONTS, HANDLE_EMBED_COMPLEX_SCRIPT_FONTS,
+    HANDLE_IMAGE_PREFERRED_DPI
 };
 
 }
@@ -218,6 +219,7 @@ enum SdDocumentSettingsPropertyHandles
             { OUString("EmbedLatinScriptFonts"),   HANDLE_EMBED_LATIN_SCRIPT_FONTS,   cppu::UnoType<bool>::get(), 0,  0 },
             { OUString("EmbedAsianScriptFonts"),   HANDLE_EMBED_ASIAN_SCRIPT_FONTS,   cppu::UnoType<bool>::get(), 0,  0 },
             { OUString("EmbedComplexScriptFonts"), HANDLE_EMBED_COMPLEX_SCRIPT_FONTS, cppu::UnoType<bool>::get(), 0,  0 },
+            { OUString("ImagePreferredDPI"), HANDLE_IMAGE_PREFERRED_DPI, cppu::UnoType<sal_Int32>::get(), 0,  0 },
             { OUString(), 0, css::uno::Type(), 0, 0 }
         };
 
@@ -1032,6 +1034,18 @@ DocumentSettings::_setPropertyValues(const PropertyMapEntry** ppEntries,
             }
             break;
 
+            case HANDLE_IMAGE_PREFERRED_DPI:
+            {
+                if (pValues->has<sal_Int32>())
+                {
+                    auto nNewValue = pValues->get<sal_Int32>();
+                    bChanged = (pDoc->getImagePreferredDPI() != nNewValue);
+                    pDoc->setImagePreferredDPI(nNewValue);
+                    bOk = true;
+                }
+            }
+            break;
+
             default:
                 throw UnknownPropertyException( OUString::number((*ppEntries)->mnHandle), static_cast<cppu::OWeakObject*>(this));
         }
@@ -1306,6 +1320,12 @@ DocumentSettings::_getPropertyValues(
             }
             break;
 
+            case HANDLE_IMAGE_PREFERRED_DPI:
+            {
+                *pValue <<= pDoc->getImagePreferredDPI();
+            }
+            break;
+
             default:
                 throw UnknownPropertyException( OUString::number((*ppEntries)->mnHandle), static_cast<cppu::OWeakObject*>(this));
         }
diff --git a/sd/source/ui/view/sdview4.cxx b/sd/source/ui/view/sdview4.cxx
index 34b1bf322d50..80a653b7b9c8 100644
--- a/sd/source/ui/view/sdview4.cxx
+++ b/sd/source/ui/view/sdview4.cxx
@@ -172,6 +172,8 @@ SdrGrafObj* View::InsertGraphic( const Graphic& rGraphic, sal_Int8& rAction,
 
     else if ( pPV )
     {
+        Size aSizePixel = rGraphic.GetSizePixel();
+
         // create  new object
         Size aSize;
 
@@ -194,15 +196,30 @@ SdrGrafObj* View::InsertGraphic( const Graphic& rGraphic, sal_Int8& rAction,
                                                 MapMode( MapUnit::Map100thMM ) );
         }
 
-        pNewGrafObj = new SdrGrafObj(
-            getSdrModelFromSdrView(),
-            rGraphic,
-            ::tools::Rectangle(rPos, aSize));
-        SdrPage* pPage = pPV->GetPage();
-        Size aPageSize( pPage->GetSize() );
-        aPageSize.AdjustWidth( -(pPage->GetLeftBorder() + pPage->GetRightBorder()) );
-        aPageSize.AdjustHeight( -(pPage->GetUpperBorder() + pPage->GetLowerBorder()) );
-        pNewGrafObj->AdjustToMaxRect( ::tools::Rectangle( Point(), aPageSize ), true );
+        sal_Int32 nPreferredDPI = mrDoc.getImagePreferredDPI();
+        if (nPreferredDPI > 0)
+        {
+            auto nWidth = o3tl::convert(aSizePixel.Width() / double(nPreferredDPI), o3tl::Length::in, o3tl::Length::mm100);
+            auto nHeight = o3tl::convert(aSizePixel.Height() / double(nPreferredDPI), o3tl::Length::in, o3tl::Length::mm100);
+            if (nWidth > 0 && nHeight > 0)
+                aSize = Size(nWidth, nHeight);
+        }
+
+        pNewGrafObj = new SdrGrafObj(getSdrModelFromSdrView(), rGraphic, ::tools::Rectangle(rPos, aSize));
+
+        if (nPreferredDPI > 0)
+        {
+            // move to the center of insertion point
+            pNewGrafObj->NbcMove(Size(-aSize.Width() / 2, -aSize.Height() / 2));
+        }
+        else
+        {
+            SdrPage* pPage = pPV->GetPage();
+            Size aPageSize( pPage->GetSize() );
+            aPageSize.AdjustWidth( -(pPage->GetLeftBorder() + pPage->GetRightBorder()) );
+            aPageSize.AdjustHeight( -(pPage->GetUpperBorder() + pPage->GetLowerBorder()) );
+            pNewGrafObj->AdjustToMaxRect( ::tools::Rectangle( Point(), aPageSize ), true );
+        }
 
         SdrInsertFlags nOptions = SdrInsertFlags::SETDEFLAYER;
         bool    bIsPresTarget = false;