Improve usability of the outline

If you had data in the outline and would scroll to the bottom then it would be
an empty view at the bottom. The width of the outline was defined as a fixed
with twice. Once in the outlnvsh and one (even smaller) in the outlview. I have
changed the with of the outlview to take the with of the outlnvsh.

Change-Id: I1376a135acd92dbe8966b29ccb075e6b74412a8c
Reviewed-on: https://gerrit.libreoffice.org/7832Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

sd/source/ui/inc/OutlineView.hxx

@@ -111,7 +111,7 @@ public:
     DECL_LINK( EndDropHdl, void * );
     DECL_LINK( PaintingFirstLineHdl, PaintFirstLineInfo* );
 
-    sal_uLong         GetPaperWidth() const { return 2*21000; }  // DIN A4 Breite
+    sal_uLong         GetPaperWidth();
 
     sal_Bool          PrepareClose(sal_Bool bUI = sal_True);
 
@@ -188,6 +188,8 @@ private:
 
     sal_Bool                mbFirstPaint;
 
+    sal_uLong               mnPaperWidth;
+
     SfxProgress*        mpProgress;
 
     /** stores the last used document color.

sd/source/ui/view/outlnvsh.cxx

@@ -299,7 +299,8 @@ void OutlineViewShell::ArrangeGUIElements ()
         Rectangle aText = Rectangle(Point(0,0),
             Size(pOlView->GetPaperWidth(),
                 pOlView->GetOutliner()->GetTextHeight()));
-        aText.Bottom() += aWin.GetHeight();
+        if (aWin.GetHeight() > aText.Bottom())
+            aText.Bottom() = aWin.GetHeight();
 
         if (!aWin.IsEmpty())            // not when opening
         {

sd/source/ui/view/outlview.cxx

@@ -73,9 +73,6 @@ using namespace ::com::sun::star::frame;
 
 namespace sd {
 
-// width: DIN A4, two margins at 1 cm each
-#define OUTLINE_PAPERWIDTH 19000
-
 // a progress bar gets displayed when more than
 // PROCESS_WITH_PROGRESS_THRESHOLD pages are concerned
 #define PROCESS_WITH_PROGRESS_THRESHOLD  5
@@ -90,9 +87,9 @@ struct SdParaAndPos
 
 TYPEINIT1( OutlineView, ::sd::View );
 
-OutlineView::OutlineView( DrawDocShell& rDocSh, ::Window* pWindow, OutlineViewShell& rOutlineViewSh)
-: ::sd::View(*rDocSh.GetDoc(), pWindow, &rOutlineViewSh)
-, mrOutlineViewShell(rOutlineViewSh)
+OutlineView::OutlineView( DrawDocShell& rDocSh, ::Window* pWindow, OutlineViewShell& rOutlineViewShell)
+: ::sd::View(*rDocSh.GetDoc(), pWindow, &rOutlineViewShell)
+, mrOutlineViewShell(rOutlineViewShell)
 , mrOutliner(*mrDoc.GetOutliner(sal_True))
 , mnPagesToProcess(0)
 , mnPagesProcessed(0)
@@ -109,8 +106,9 @@ OutlineView::OutlineView( DrawDocShell& rDocSh, ::Window* pWindow, OutlineViewSh
         bInitOutliner = sal_True;
         mrOutliner.Init( OUTLINERMODE_OUTLINEVIEW );
         mrOutliner.SetRefDevice( SD_MOD()->GetRefDevice( rDocSh ) );
-        sal_uLong nWidth = OUTLINE_PAPERWIDTH;
-        mrOutliner.SetPaperSize(Size(nWidth, 400000000));
+        //viewsize without the width of the image and number in front
+        mnPaperWidth = (mrOutlineViewShell.GetActiveWindow()->GetViewSize().Width() - 4000);
+        mrOutliner.SetPaperSize(Size(mnPaperWidth, 400000000));
     }
 
     // insert View into Outliner
@@ -798,16 +796,16 @@ IMPL_LINK_NOARG(OutlineView, StatusEventHdl)
     ::sd::Window*   pWin = mrOutlineViewShell.GetActiveWindow();
     OutlinerView*   pOutlinerView = GetViewByWindow(pWin);
     Rectangle     aVis          = pOutlinerView->GetVisArea();
-    sal_uLong nWidth = OUTLINE_PAPERWIDTH;
     Rectangle aText = Rectangle(Point(0,0),
-                                   Size(nWidth,
-                                        mrOutliner.GetTextHeight()));
+                                Size(mnPaperWidth,
+                                     mrOutliner.GetTextHeight()));
     Rectangle aWin(Point(0,0), pWin->GetOutputSizePixel());
     aWin = pWin->PixelToLogic(aWin);
 
     if (!aVis.IsEmpty())        // not when opening
     {
-        aText.Bottom() += aWin.GetHeight();
+        if (aWin.GetHeight() > aText.Bottom())
+            aText.Bottom() = aWin.GetHeight();
 
         mrOutlineViewShell.InitWindows(Point(0,0), aText.GetSize(),
                                        Point(aVis.TopLeft()));
@@ -1044,6 +1042,11 @@ SdrTextObj* OutlineView::CreateOutlineTextObject(SdPage* pPage)
     return GetOutlineTextObject(pPage);
 }
 
+sal_uLong OutlineView::GetPaperWidth()
+{
+    return mnPaperWidth;
+}
+
 /** updates draw model with all changes from outliner model */
 sal_Bool OutlineView::PrepareClose(sal_Bool)
 {