adding overlay implementation for core graphics

[wxWidgets.git] / src / generic / vlbox.cpp

diff --git a/src/generic/vlbox.cpp b/src/generic/vlbox.cpp
index bc846054a238b49dceae8b7b79ea47752fe1b91f..2a3ca54d1cbce461ab5a6664f0dd6fb3af239648 100644 (file)
--- a/src/generic/vlbox.cpp
+++ b/src/generic/vlbox.cpp
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////

-// Name:        generic/vlbox.cpp
+// Name:        src/generic/vlbox.cpp

 // Purpose:     implementation of wxVListBox
 // Author:      Vadim Zeitlin
 // Modified by:
 // Purpose:     implementation of wxVListBox
 // Author:      Vadim Zeitlin
 // Modified by:


@@ -24,12 +24,17 @@
     #pragma hdrstop
 #endif
 
     #pragma hdrstop
 #endif
 

+#if wxUSE_LISTBOX
+
+#include "wx/vlbox.h"
+

 #ifndef WX_PRECOMP
     #include "wx/settings.h"
     #include "wx/dcclient.h"
 #ifndef WX_PRECOMP
     #include "wx/settings.h"
     #include "wx/dcclient.h"

+    #include "wx/listbox.h"

 #endif //WX_PRECOMP
 
 #endif //WX_PRECOMP
 

-#include "wx/vlbox.h"
+#include "wx/dcbuffer.h"

 #include "wx/selstore.h"
 
 // ----------------------------------------------------------------------------
 #include "wx/selstore.h"
 
 // ----------------------------------------------------------------------------


@@ -48,6 +53,8 @@ END_EVENT_TABLE()
 // implementation
 // ============================================================================
 
 // implementation
 // ============================================================================
 

+IMPLEMENT_ABSTRACT_CLASS(wxVListBox, wxVScrolledWindow)
+

 // ----------------------------------------------------------------------------
 // wxVListBox creation
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxVListBox creation
 // ----------------------------------------------------------------------------


@@ -66,14 +73,21 @@ bool wxVListBox::Create(wxWindow *parent,
                         long style,
                         const wxString& name)
 {
                         long style,
                         const wxString& name)
 {

+    style |= wxWANTS_CHARS | wxFULL_REPAINT_ON_RESIZE;

     if ( !wxVScrolledWindow::Create(parent, id, pos, size, style, name) )
         return false;
 
     if ( !wxVScrolledWindow::Create(parent, id, pos, size, style, name) )
         return false;
 

-    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_LISTBOX));
-

     if ( style & wxLB_MULTIPLE )
         m_selStore = new wxSelectionStore;
 
     if ( style & wxLB_MULTIPLE )
         m_selStore = new wxSelectionStore;
 

+    // make sure the native widget has the right colour since we do
+    // transparent drawing by default
+    SetBackgroundColour(GetBackgroundColour());
+    m_colBgSel = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
+
+    // flicker-free drawing requires this
+    SetBackgroundStyle(wxBG_STYLE_CUSTOM);
+

     return true;
 }
 
     return true;
 }
 


@@ -216,10 +230,8 @@ bool wxVListBox::DoSetCurrent(int current)
         {
             // it is, indeed, only partly visible, so scroll it into view to
             // make it entirely visible
         {
             // it is, indeed, only partly visible, so scroll it into view to
             // make it entirely visible

-            if ( (size_t)m_current == GetLastVisibleLine() )
-            {
-                ScrollToLine(m_current);
-            }
+            while ( (size_t)m_current == GetLastVisibleLine() &&
+                    ScrollToLine(GetVisibleBegin()+1) ) ;

 
             // but in any case refresh it as even if it was only partly visible
             // before we need to redraw it entirely as its background changed
 
             // but in any case refresh it as even if it was only partly visible
             // before we need to redraw it entirely as its background changed


@@ -237,7 +249,7 @@ void wxVListBox::SendSelectedEvent()
 
     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, GetId());
     event.SetEventObject(this);
 
     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, GetId());
     event.SetEventObject(this);

-    event.m_commandInt = m_current;
+    event.SetInt(m_current);

 
     (void)GetEventHandler()->ProcessEvent(event);
 }
 
     (void)GetEventHandler()->ProcessEvent(event);
 }


@@ -248,8 +260,14 @@ void wxVListBox::SetSelection(int selection)
                   (selection >= 0 && (size_t)selection < GetItemCount()),
                   _T("wxVListBox::SetSelection(): invalid item index") );
 
                   (selection >= 0 && (size_t)selection < GetItemCount()),
                   _T("wxVListBox::SetSelection(): invalid item index") );
 

-    wxASSERT_MSG( !HasMultipleSelection(),
-                  _T("SetSelection() is invalid with multiselection listbox") );
+    if ( HasMultipleSelection() )
+    {
+        if (selection != wxNOT_FOUND)
+            Select(selection);
+        else
+            DeselectAll();
+        m_anchor = selection;
+    }

 
     DoSetCurrent(selection);
 }
 
     DoSetCurrent(selection);
 }


@@ -282,7 +300,7 @@ int wxVListBox::GetNextSelected(unsigned long& cookie) const
 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------

-// wxVListBox painting
+// wxVListBox appearance parameters

 // ----------------------------------------------------------------------------
 
 void wxVListBox::SetMargins(const wxPoint& pt)
 // ----------------------------------------------------------------------------
 
 void wxVListBox::SetMargins(const wxPoint& pt)


@@ -295,6 +313,15 @@ void wxVListBox::SetMargins(const wxPoint& pt)
     }
 }
 
     }
 }
 

+void wxVListBox::SetSelectionBackground(const wxColour& col)
+{
+    m_colBgSel = col;
+}
+
+// ----------------------------------------------------------------------------
+// wxVListBox painting
+// ----------------------------------------------------------------------------
+

 wxCoord wxVListBox::OnGetLineHeight(size_t line) const
 {
     return OnMeasureItem(line) + 2*m_ptMargins.y;
 wxCoord wxVListBox::OnGetLineHeight(size_t line) const
 {
     return OnMeasureItem(line) + 2*m_ptMargins.y;


@@ -306,20 +333,49 @@ void wxVListBox::OnDrawSeparator(wxDC& WXUNUSED(dc),
 {
 }
 
 {
 }
 

-void wxVListBox::OnPaint(wxPaintEvent& event)
+void wxVListBox::OnDrawBackground(wxDC& dc, const wxRect& rect, size_t n) const
+{
+    // we need to render selected and current items differently
+    const bool isSelected = IsSelected(n),
+               isCurrent = IsCurrent(n);
+    if ( isSelected || isCurrent )
+    {
+        if ( isSelected )
+        {
+            dc.SetBrush(wxBrush(m_colBgSel, wxSOLID));
+        }
+        else // !selected
+        {
+            dc.SetBrush(*wxTRANSPARENT_BRUSH);
+        }
+
+        dc.SetPen(*(isCurrent ? wxBLACK_PEN : wxTRANSPARENT_PEN));
+
+        dc.DrawRectangle(rect);
+    }
+    //else: do nothing for the normal items
+}
+
+void wxVListBox::OnPaint(wxPaintEvent& WXUNUSED(event))

 {
 {

-    wxPaintDC dc(this);
+    wxSize clientSize = GetClientSize();
+
+    wxAutoBufferedPaintDC dc(this);

 
     // the update rectangle
     wxRect rectUpdate = GetUpdateClientRect();
 
 
     // the update rectangle
     wxRect rectUpdate = GetUpdateClientRect();
 

+    // fill it with background colour
+    dc.SetBackground(GetBackgroundColour());
+    dc.Clear();
+

     // the bounding rectangle of the current line
     wxRect rectLine;
     // the bounding rectangle of the current line
     wxRect rectLine;

-    rectLine.width = GetClientSize().x;
+    rectLine.width = clientSize.x;

 
     // iterate over all visible lines
 
     // iterate over all visible lines

-    const size_t lineMax = GetLastVisibleLine();
-    for ( size_t line = GetFirstVisibleLine(); line <= lineMax; line++ )
+    const size_t lineMax = GetVisibleEnd();
+    for ( size_t line = GetFirstVisibleLine(); line < lineMax; line++ )

     {
         const wxCoord hLine = OnGetLineHeight(line);
 
     {
         const wxCoord hLine = OnGetLineHeight(line);
 


@@ -331,28 +387,9 @@ void wxVListBox::OnPaint(wxPaintEvent& event)
             // don't allow drawing outside of the lines rectangle
             wxDCClipper clip(dc, rectLine);
 
             // don't allow drawing outside of the lines rectangle
             wxDCClipper clip(dc, rectLine);
 

-            // we need to render selected and current items differently
-            const bool isSelected = IsSelected(line);
-            if ( isSelected || IsCurrent(line) )
-            {
-                if ( isSelected )
-                {
-                    wxBrush brush(wxSystemSettings::
-                                    GetColour(wxSYS_COLOUR_HIGHLIGHT),
-                                    wxSOLID);
-                    dc.SetBrush(brush);
-                }
-                else // !selected
-                {
-                    dc.SetBrush(*wxTRANSPARENT_BRUSH);
-                }
-
-                dc.SetPen(*(IsCurrent(line) ? wxBLACK_PEN : wxTRANSPARENT_PEN));
-
-                dc.DrawRectangle(rectLine);
-            }
-

             wxRect rect = rectLine;
             wxRect rect = rectLine;

+            OnDrawBackground(dc, rect, line);
+

             OnDrawSeparator(dc, rect, line);
 
             rect.Deflate(m_ptMargins.x, m_ptMargins.y);
             OnDrawSeparator(dc, rect, line);
 
             rect.Deflate(m_ptMargins.x, m_ptMargins.y);


@@ -467,7 +504,7 @@ void wxVListBox::OnKeyDown(wxKeyEvent& event)
     // flags for DoHandleItemClick()
     int flags = ItemClick_Kbd;
 
     // flags for DoHandleItemClick()
     int flags = ItemClick_Kbd;
 

-    int current = 0; // just to silent the stupid compiler warnings
+    int current;

     switch ( event.GetKeyCode() )
     {
         case WXK_HOME:
     switch ( event.GetKeyCode() )
     {
         case WXK_HOME:


@@ -495,13 +532,11 @@ void wxVListBox::OnKeyDown(wxKeyEvent& event)
             break;
 
         case WXK_PAGEDOWN:
             break;
 
         case WXK_PAGEDOWN:

-        case WXK_NEXT:

             PageDown();
             current = GetFirstVisibleLine();
             break;
 
         case WXK_PAGEUP:
             PageDown();
             current = GetFirstVisibleLine();
             break;
 
         case WXK_PAGEUP:

-        case WXK_PRIOR:

             if ( m_current == (int)GetFirstVisibleLine() )
             {
                 PageUp();
             if ( m_current == (int)GetFirstVisibleLine() )
             {
                 PageUp();


@@ -518,8 +553,23 @@ void wxVListBox::OnKeyDown(wxKeyEvent& event)
             current = m_current;
             break;
 
             current = m_current;
             break;
 

+#ifdef __WXMSW__
+        case WXK_TAB:
+            // Since we are using wxWANTS_CHARS we need to send navigation
+            // events for the tabs on MSW
+            {
+                wxNavigationKeyEvent ne;
+                ne.SetDirection(!event.ShiftDown());
+                ne.SetCurrentFocus(this);
+                ne.SetEventObject(this);
+                GetParent()->GetEventHandler()->ProcessEvent(ne);
+            }
+            // fall through to default
+#endif

         default:
             event.Skip();
         default:
             event.Skip();

+            current = 0; // just to silent the stupid compiler warnings
+            wxUnusedVar(current);

             return;
     }
 
             return;
     }
 


@@ -537,6 +587,8 @@ void wxVListBox::OnKeyDown(wxKeyEvent& event)
 
 void wxVListBox::OnLeftDown(wxMouseEvent& event)
 {
 
 void wxVListBox::OnLeftDown(wxMouseEvent& event)
 {

+    SetFocus();
+

     int item = HitTest(event.GetPosition());
 
     if ( item != wxNOT_FOUND )
     int item = HitTest(event.GetPosition());
 
     if ( item != wxNOT_FOUND )


@@ -558,16 +610,40 @@ void wxVListBox::OnLeftDown(wxMouseEvent& event)
     }
 }
 
     }
 }
 

-void wxVListBox::OnLeftDClick(wxMouseEvent& event)
+void wxVListBox::OnLeftDClick(wxMouseEvent& eventMouse)

 {
 {

-    int item = HitTest(event.GetPosition());
+    int item = HitTest(eventMouse.GetPosition());

     if ( item != wxNOT_FOUND )
     {
     if ( item != wxNOT_FOUND )
     {

-        wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, GetId());
-        event.SetEventObject(this);
-        event.m_commandInt = item;

 
 

-        (void)GetEventHandler()->ProcessEvent(event);
+        // if item double-clicked was not yet selected, then treat
+        // this event as a left-click instead
+        if ( item == m_current )
+        {
+            wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, GetId());
+            event.SetEventObject(this);
+            event.SetInt(item);
+
+            (void)GetEventHandler()->ProcessEvent(event);
+        }
+        else
+        {
+            OnLeftDown(eventMouse);
+        }
+

     }
 }
 
     }
 }
 

+
+// ----------------------------------------------------------------------------
+// use the same default attributes as wxListBox
+// ----------------------------------------------------------------------------
+
+//static
+wxVisualAttributes
+wxVListBox::GetClassDefaultAttributes(wxWindowVariant variant)
+{
+    return wxListBox::GetClassDefaultAttributes(variant);
+}
+
+#endif