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>

1 files changed, 16 insertions, 2 deletions

diff --git a/sw/source/uibase/wrtsh/wrtsh1.cxx b/sw/source/uibase/wrtsh/wrtsh1.cxx
index 1120bed817b9..176183ac90db 100644
--- a/sw/source/uibase/wrtsh/wrtsh1.cxx
+++ b/sw/source/uibase/wrtsh/wrtsh1.cxx
@@ -334,8 +334,22 @@ void SwWrtShell::Insert( const OUString &rPath, const OUString &rFilter,
 
     if( bSetGrfSize )
     {
-        Size aGrfSize, aBound = GetGraphicDefaultSize();
-        GetGrfSize( aGrfSize );
+        Size aSizePixel = rGrf.GetSizePixel();
+        Size aBound = GetGraphicDefaultSize();
+
+        sal_Int32 nPreferredDPI = mxDoc->getIDocumentSettingAccess().getImagePreferredDPI();
+        Size aGrfSize;
+
+        if (nPreferredDPI > 0)
+        {
+            auto nWidth = o3tl::toTwips(aSizePixel.Width() / double(nPreferredDPI), o3tl::Length::in);
+            auto nHeight = o3tl::toTwips(aSizePixel.Height() / double(nPreferredDPI), o3tl::Length::in);
+            aGrfSize = Size(nWidth, nHeight);
+        }
+        else
+        {
+            GetGrfSize(aGrfSize);
+        }
 
         // Add the margin attributes to GrfSize,
         // because these counts at the margin additionally