Cvpcb: fix bug Bug #1386933 (Horizontal scrollbars not appearing in CvPcb)

cvpcb/class_components_listbox.cpp

@@ -47,7 +47,6 @@ COMPONENTS_LISTBOX::~COMPONENTS_LISTBOX()
 
 
 BEGIN_EVENT_TABLE( COMPONENTS_LISTBOX, ITEMS_LISTBOX_BASE )
-    EVT_SIZE( ITEMS_LISTBOX_BASE::OnSize )
     EVT_CHAR( COMPONENTS_LISTBOX::OnChar )
     EVT_LIST_ITEM_SELECTED( ID_CVPCB_COMPONENT_LIST, COMPONENTS_LISTBOX::OnSelectComponent )
 END_EVENT_TABLE()
@@ -72,14 +71,19 @@ void COMPONENTS_LISTBOX::SetString( unsigned linecount, const wxString& text )
         linecount = m_ComponentList.Count() - 1;
 
     if( m_ComponentList.Count() > 0 )
+    {
         m_ComponentList[linecount] = text;
+        UpdateWidth( linecount );
+    }
 }
 
 
 void COMPONENTS_LISTBOX::AppendLine( const wxString& text )
 {
     m_ComponentList.Add( text );
-    SetItemCount( m_ComponentList.Count() );
+    int lines = m_ComponentList.Count();
+    SetItemCount( lines );
+    UpdateWidth( lines - 1 );
 }
 
 

cvpcb/class_footprints_listbox.cpp

@@ -67,6 +67,7 @@ void FOOTPRINTS_LISTBOX::SetString( unsigned linecount, const wxString& text )
             linecount = count - 1;
         m_footprintList[linecount] = text;
     }
+    UpdateWidth( linecount );
 }
 
 
@@ -90,7 +91,9 @@ wxString FOOTPRINTS_LISTBOX::GetSelectedFootprint()
 void FOOTPRINTS_LISTBOX::AppendLine( const wxString& text )
 {
     m_footprintList.Add( text );
-    SetItemCount( m_footprintList.Count() );
+    int lines = m_footprintList.Count();
+    SetItemCount( lines );
+    UpdateWidth( lines - 1 );
 }
 
 
@@ -179,24 +182,12 @@ void FOOTPRINTS_LISTBOX::SetFootprints( FOOTPRINT_LIST& aList, const wxString& a
         SetItemCount( m_footprintList.GetCount() );
         SetSelection( selection, true );
         RefreshItems( 0L, m_footprintList.GetCount()-1 );
-
+        UpdateWidth();
-#if defined (__WXGTK__ ) //&& wxMINOR_VERSION == 8
-        // @bug On GTK and wxWidgets 2.8.x, this will assert in debug builds because the
-
-        //      column parameter is -1.  This was the only way to prevent GTK3 from
-        //      ellipsizing long strings down to a few characters.  It still doesn't set
-        //      the scroll bars correctly (too short) but it's better than any of the
-        //      other alternatives.  If someone knows how to fix this, please do.
-        SetColumnWidth( -1, wxLIST_AUTOSIZE );
-#else
-        SetColumnWidth( 0, wxLIST_AUTOSIZE );
-#endif
     }
 }
 
 
 BEGIN_EVENT_TABLE( FOOTPRINTS_LISTBOX, ITEMS_LISTBOX_BASE )
-    EVT_SIZE( ITEMS_LISTBOX_BASE::OnSize )
     EVT_CHAR( FOOTPRINTS_LISTBOX::OnChar )
     EVT_LIST_ITEM_SELECTED( ID_CVPCB_FOOTPRINT_LIST, FOOTPRINTS_LISTBOX::OnLeftClick )
     EVT_LIST_ITEM_ACTIVATED( ID_CVPCB_FOOTPRINT_LIST, FOOTPRINTS_LISTBOX::OnLeftDClick )

cvpcb/class_library_listbox.cpp

@@ -66,6 +66,7 @@ void LIBRARY_LISTBOX::SetString( unsigned linecount, const wxString& text )
         if( linecount >= count )
             linecount = count - 1;
         m_libraryList[linecount] = text;
+        UpdateWidth( linecount );
     }
 }
 
@@ -87,7 +88,9 @@ wxString LIBRARY_LISTBOX::GetSelectedLibrary()
 void LIBRARY_LISTBOX::AppendLine( const wxString& text )
 {
     m_libraryList.Add( text );
-    SetItemCount( m_libraryList.Count() );
+    int lines = m_libraryList.Count();
+    SetItemCount( lines );
+    UpdateWidth( lines - 1 );
 }
 
 
@@ -129,23 +132,12 @@ void LIBRARY_LISTBOX::SetLibraryList( const wxArrayString& aList )
     if( m_libraryList.Count() )
     {
         RefreshItems( 0L, m_libraryList.Count()-1 );
-
+        UpdateWidth();
-#if defined (__WXGTK__ ) && wxMINOR_VERSION == 8
-        // @bug On GTK and wxWidgets 2.8.x, this will assert in debug builds because the
-        //      column parameter is -1.  This was the only way to prevent GTK3 from
-        //      ellipsizing long strings down to a few characters.  It still doesn't set
-        //      the scroll bars correctly (too short) but it's better than any of the
-        //      other alternatives.  If someone knows how to fix this, please do.
-        SetColumnWidth( -1, wxLIST_AUTOSIZE );
-#else
-        SetColumnWidth( 0, wxLIST_AUTOSIZE );
-#endif
     }
 }
 
 
 BEGIN_EVENT_TABLE( LIBRARY_LISTBOX, ITEMS_LISTBOX_BASE )
-    EVT_SIZE( ITEMS_LISTBOX_BASE::OnSize )
     EVT_CHAR( LIBRARY_LISTBOX::OnChar )
     EVT_LIST_ITEM_SELECTED( ID_CVPCB_LIBRARY_LIST, LIBRARY_LISTBOX::OnSelectLibrary )
 END_EVENT_TABLE()

cvpcb/cvframe.cpp

@@ -445,6 +445,10 @@ bool CVPCB_MAINFRAME::OpenProjectFiles( const std::vector<wxString>& aFileSet, i
 
         UpdateTitle();
 
+        // Resize the components list box. This is needed in case the
+        // contents have shrunk compared to the previous netlist.
+        m_compListBox->UpdateWidth();
+
         // OSX need it since some objects are "rebuild" just make aware AUI
         // Fixes #1258081
         m_auimgr.Update();
@@ -949,17 +953,7 @@ void CVPCB_MAINFRAME::BuildCmpListBox()
         m_compListBox->SetItemCount( m_compListBox->m_ComponentList.Count() );
         m_compListBox->SetSelection( 0, true );
         m_compListBox->RefreshItems( 0L, m_compListBox->m_ComponentList.Count()-1 );
-
+        m_compListBox->UpdateWidth();
-#if defined (__WXGTK__ )
-        // @bug On GTK and wxWidgets 2.8.x, this will assert in debug builds because the
-        //      column parameter is -1.  This was the only way to prevent GTK3 from
-        //      ellipsizing long strings down to a few characters.  It still doesn't set
-        //      the scroll bars correctly (too short) but it's better than any of the
-        //      other alternatives.  If someone knows how to fix this, please do.
-        m_compListBox->SetColumnWidth( -1, wxLIST_AUTOSIZE );
-#else
-        m_compListBox->SetColumnWidth( 0, wxLIST_AUTOSIZE );
-#endif
     }
 }
 

cvpcb/cvstruct.h

@@ -50,9 +50,23 @@ public:
     ~ITEMS_LISTBOX_BASE();
 
     int                      GetSelection();
-    void                     OnSize( wxSizeEvent& event );
 
     virtual CVPCB_MAINFRAME* GetParent() const;
+
+    /* Function UpdateWidth
+     *
+     * Update the width of the column based on its contents.
+     *
+     * @param aLine is the line to calculate the width from. If positive, the
+     * width will only be increased if needed. If negative, we start from
+     * scratch and all lines are considered, i.e., the column may be shrunk.
+     */
+    void UpdateWidth( int aLine = -1 );
+
+private:
+    void UpdateLineWidth( unsigned aLine );
+
+    int columnWidth;
 };
 
 

cvpcb/listboxes.cpp

@@ -44,10 +44,9 @@
 ITEMS_LISTBOX_BASE::ITEMS_LISTBOX_BASE( CVPCB_MAINFRAME* aParent, wxWindowID aId,
                                         const wxPoint& aLocation, const wxSize& aSize,
                                         long aStyle) :
-    wxListView( aParent, aId, aLocation, aSize, LISTB_STYLE | aStyle )
+    wxListView( aParent, aId, aLocation, aSize, LISTB_STYLE | aStyle ), columnWidth(0)
 {
     InsertColumn( 0, wxEmptyString );
-    SetColumnWidth( 0, wxLIST_AUTOSIZE );
 }
 
 
@@ -56,17 +55,47 @@ ITEMS_LISTBOX_BASE::~ITEMS_LISTBOX_BASE()
 }
 
 
-/*
+void ITEMS_LISTBOX_BASE::UpdateWidth( int aLine )
- * Adjust the column width to the entire available window width
- */
-void ITEMS_LISTBOX_BASE::OnSize( wxSizeEvent& event )
 {
-    wxSize size  = GetClientSize();
+    // Less than zero: recalculate width of all items.
-    int    width = 0;
+    if( aLine < 0 )
+    {
+        columnWidth = 0;
+        for( int ii = 0; ii < GetItemCount(); ii++ )
+        {
+            UpdateLineWidth( (unsigned)ii );
+        }
+    }
 
-    SetColumnWidth( 0, std::max( width, size.x ) );
+    // Zero or above: update from a single line.
+    else
+    {
+        if( aLine < GetItemCount() )
+            UpdateLineWidth( (unsigned)aLine );
+    }
+}
 
-    event.Skip();
+
+/*
+ * Calculate the width of the given line, and increase the column width
+ * if needed. This is effectively the wxListCtrl code for autosizing.
+ * NB. it relies on the caller checking the given line number is valid.
+ */
+void ITEMS_LISTBOX_BASE::UpdateLineWidth( unsigned aLine )
+{
+    wxClientDC dc( this );
+    wxCoord w;
+    int newWidth = 10;  // Value of AUTOSIZE_COL_MARGIN from wxWidgets source.
+
+    dc.SetFont( GetFont() );
+    dc.GetTextExtent( GetItemText( aLine, 0 ) + " ", &w, NULL );
+    newWidth += w;
+
+    if( newWidth > columnWidth )
+    {
+        columnWidth = newWidth;
+        SetColumnWidth( 0, columnWidth );
+    }    
 }