X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f029f1d15b04dd70522008cdf105be87140fabc6..9c39f4f538b97bc595c31770947a49705e08aaf0:/src/generic/vlbox.cpp

diff --git a/src/generic/vlbox.cpp b/src/generic/vlbox.cpp
index d75fc4f130..0d7f8ef199 100644
--- a/src/generic/vlbox.cpp
+++ b/src/generic/vlbox.cpp
@@ -51,6 +51,8 @@ BEGIN_EVENT_TABLE(wxVListBox, wxVScrolledWindow)
 
     EVT_SET_FOCUS(wxVListBox::OnSetOrKillFocus)
     EVT_KILL_FOCUS(wxVListBox::OnSetOrKillFocus)
+
+    EVT_SIZE(wxVListBox::OnSize)
 END_EVENT_TABLE()
 
 // ============================================================================
@@ -58,6 +60,7 @@ END_EVENT_TABLE()
 // ============================================================================
 
 IMPLEMENT_ABSTRACT_CLASS(wxVListBox, wxVScrolledWindow)
+const char wxVListBoxNameStr[] = "wxVListBox";
 
 // ----------------------------------------------------------------------------
 // wxVListBox creation
@@ -78,8 +81,8 @@ bool wxVListBox::Create(wxWindow *parent,
                         const wxString& name)
 {
 #ifdef __WXMSW__
-	if ((style & wxBORDER_MASK) == wxDEFAULT)
-		style |= wxBORDER_THEME;
+    if ( (style & wxBORDER_MASK) == wxDEFAULT )
+        style |= wxBORDER_THEME;
 #endif
 
     style |= wxWANTS_CHARS | wxFULL_REPAINT_ON_RESIZE;
@@ -110,6 +113,10 @@ wxVListBox::~wxVListBox()
 
 void wxVListBox::SetItemCount(size_t count)
 {
+    // don't leave the current index invalid
+    if ( m_current != wxNOT_FOUND && (size_t)m_current >= count )
+        m_current = count - 1; // also ok when count == 0 as wxNOT_FOUND == -1
+
     if ( m_selStore )
     {
         // tell the selection store that our number of items has changed
@@ -321,6 +328,31 @@ void wxVListBox::RefreshSelected()
     }
 }
 
+wxRect wxVListBox::GetItemRect(size_t n) const
+{
+    wxRect itemrect;
+
+    // check that this item is visible
+    const size_t lineMax = GetVisibleEnd();
+    if ( n >= lineMax )
+        return itemrect;
+    size_t line = GetVisibleBegin();
+    if ( n < line )
+        return itemrect;
+
+    while ( line <= n )
+    {
+        itemrect.y += itemrect.height;
+        itemrect.height = OnGetRowHeight(line);
+
+        line++;
+    }
+
+    itemrect.width = GetClientSize().x;
+
+    return itemrect;
+}
+
 // ----------------------------------------------------------------------------
 // wxVListBox appearance parameters
 // ----------------------------------------------------------------------------
@@ -355,40 +387,51 @@ void wxVListBox::OnDrawSeparator(wxDC& WXUNUSED(dc),
 {
 }
 
-void wxVListBox::OnDrawBackground(wxDC& dc, const wxRect& rect, size_t n) const
+bool
+wxVListBox::DoDrawSolidBackground(const wxColour& col,
+                                  wxDC& dc,
+                                  const wxRect& rect,
+                                  size_t n) const
 {
-    if ( m_colBgSel.IsOk() )
+    if ( !col.IsOk() )
+        return false;
+
+    // we need to render selected and current items differently
+    const bool isSelected = IsSelected(n),
+               isCurrent = IsCurrent(n);
+    if ( isSelected || isCurrent )
     {
-        // we need to render selected and current items differently
-        const bool isSelected = IsSelected(n),
-                   isCurrent = IsCurrent(n);
-        if ( isSelected || isCurrent )
+        if ( isSelected )
         {
-            if ( isSelected )
-            {
-                dc.SetBrush(wxBrush(m_colBgSel, wxSOLID));
-            }
-            else // !selected
-            {
-                dc.SetBrush(*wxTRANSPARENT_BRUSH);
-            }
-            dc.SetPen(*(isCurrent ? wxBLACK_PEN : wxTRANSPARENT_PEN));
-            dc.DrawRectangle(rect);
+            dc.SetBrush(wxBrush(col, wxBRUSHSTYLE_SOLID));
+        }
+        else // !selected
+        {
+            dc.SetBrush(*wxTRANSPARENT_BRUSH);
         }
-        //else: do nothing for the normal items
+        dc.SetPen(*(isCurrent ? wxBLACK_PEN : wxTRANSPARENT_PEN));
+        dc.DrawRectangle(rect);
     }
-    else // use wxRendererNative for a more native look&feel:
+    //else: do nothing for the normal items
+
+    return true;
+}
+
+void wxVListBox::OnDrawBackground(wxDC& dc, const wxRect& rect, size_t n) const
+{
+    // use wxRendererNative for more native look unless we use custom bg colour
+    if ( !DoDrawSolidBackground(m_colBgSel, dc, rect, n) )
     {
         int flags = 0;
         if ( IsSelected(n) )
             flags |= wxCONTROL_SELECTED;
         if ( IsCurrent(n) )
             flags |= wxCONTROL_CURRENT;
-        if ( wxWindow::FindFocus() == wx_const_cast(wxVListBox*, this) )
+        if ( wxWindow::FindFocus() == const_cast<wxVListBox*>(this) )
             flags |= wxCONTROL_FOCUSED;
 
         wxRendererNative::Get().DrawItemSelectionRect(
-            wx_const_cast(wxVListBox *, this), dc, rect, flags);
+            const_cast<wxVListBox *>(this), dc, rect, flags);
     }
 }
 
@@ -454,6 +497,11 @@ void wxVListBox::OnSetOrKillFocus(wxFocusEvent& WXUNUSED(event))
     RefreshSelected();
 }
 
+void wxVListBox::OnSize(wxSizeEvent& event)
+{
+    UpdateScrollbar();
+    event.Skip();
+}
 
 // ============================================================================
 // wxVListBox keyboard/mouse handling