tdf#87905: Use darker background colour for master view

for the area behind the slide, that is

Change-Id: Ie020f43a81e5eaa257c20d0a7b6feffce1614205
Reviewed-on: https://gerrit.libreoffice.org/16466Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Philippe Jung <phil.jung@free.fr>
(cherry picked from commit 1c481fe6)

sd/source/ui/inc/DrawViewShell.hxx

@@ -376,6 +376,9 @@ public:
 
     OUString GetSidebarContextName() const;
 
+    const Color& GetAppBackgroundColor() const { return mnAppBackgroundColor; }
+    void SetAppBackgroundColor( Color nNewColor )  { mnAppBackgroundColor = nNewColor; }
+
     //move this method to ViewShell.
     //void  NotifyAccUpdate();
 protected:
@@ -507,6 +510,9 @@ private:
     ::std::unique_ptr< ViewOverlayManager > mpViewOverlayManager;
 
     std::vector<std::unique_ptr<SdrExternalToolEdit>> m_ExternalEdits;
+
+    // The colour of the area behind the slide (used to be called "Wiese")
+    Color mnAppBackgroundColor;
 };
 
 } // end of namespace sd

sd/source/ui/view/drviews1.cxx

@@ -316,6 +316,7 @@ bool DrawViewShell::PrepareClose( bool bUI )
     return true;
 }
 
+
 /**
  * Set status (enabled/disabled) of menu SfxSlots
  */
@@ -378,6 +379,9 @@ void DrawViewShell::ChangeEditMode(EditMode eEMode, bool bIsLayerModeActive)
                 GetViewShellBase().GetToolBarManager()->ResetToolBars(ToolBarManager::TBG_COMMON_TASK);
         }
 
+        svtools::ColorConfig aColorConfig;
+        Color aFillColor = Color( aColorConfig.GetColorValue( svtools::APPBACKGROUND ).nColor );
+
         if (meEditMode == EM_PAGE)
         {
             /******************************************************************
@@ -403,6 +407,8 @@ void DrawViewShell::ChangeEditMode(EditMode eEMode, bool bIsLayerModeActive)
 
             maTabControl->SetCurPageId(nActualPageNum + 1);
 
+            SetAppBackgroundColor( aFillColor );
+
             SwitchPage(nActualPageNum);
         }
         else
@@ -439,6 +445,9 @@ void DrawViewShell::ChangeEditMode(EditMode eEMode, bool bIsLayerModeActive)
                 }
             }
 
+            aFillColor.DecreaseLuminance( 64 );
+            SetAppBackgroundColor( aFillColor );
+
             maTabControl->SetCurPageId(nActualMasterPageNum + 1);
             SwitchPage(nActualMasterPageNum);
         }
@@ -478,6 +487,7 @@ void DrawViewShell::ChangeEditMode(EditMode eEMode, bool bIsLayerModeActive)
         Invalidate( SID_TITLE_MASTERPAGE );
         Invalidate( SID_NOTES_MASTERPAGE );
         Invalidate( SID_HANDOUT_MASTERPAGE );
+        InvalidateWindows();
 
         SetContextName(GetSidebarContextName());
     }

sd/source/ui/view/drviews5.cxx

@@ -406,19 +406,13 @@ void DrawViewShell::PrePaint()
  */
 void DrawViewShell::Paint(const Rectangle& rRect, ::sd::Window* pWin)
 {
-    // Fill var FillColor here to have it available on later call
-    svtools::ColorConfig aColorConfig;
-    Color aFillColor;
-
-    aFillColor = Color( aColorConfig.GetColorValue( svtools::APPBACKGROUND ).nColor );
-
     /* This is done before each text edit, so why not do it before every paint.
                 The default language is only used if the outliner only contains one
                 character in a symbol font */
     GetDoc()->GetDrawOutliner( NULL ).SetDefaultLanguage( GetDoc()->GetLanguage( EE_CHAR_LANGUAGE ) );
 
     // Set Application Background color for usage in SdrPaintView(s)
-    mpDrawView->SetApplicationBackgroundColor(aFillColor);
+    mpDrawView->SetApplicationBackgroundColor(GetAppBackgroundColor());
 
     /* This is done before each text edit, so why not do it before every paint.
                 The default language is only used if the outliner only contains one

sd/source/ui/view/drviewsa.cxx

@@ -208,6 +208,9 @@ void DrawViewShell::Construct(DrawDocShell* pDocSh, PageKind eInitialPageKind)
     mbPastePossible = false;
     mbIsLayerModeActive = false;
 
+    svtools::ColorConfig aColorConfig;
+    mnAppBackgroundColor = Color( aColorConfig.GetColorValue( svtools::APPBACKGROUND ).nColor );
+
     mpFrameView->Connect();
 
     OSL_ASSERT (GetViewShell()!=NULL);