// the items to avoid doing it anew each time an item must be drawn
class wxHtmlListBoxCache
{
+private:
+ // invalidate a single item, used by Clear() and InvalidateRange()
+ void InvalidateItem(size_t n)
+ {
+ m_items[n] = (size_t)-1;
+ delete m_cells[n];
+ m_cells[n] = NULL;
+ }
+
public:
wxHtmlListBoxCache()
{
{
for ( size_t n = 0; n < SIZE; n++ )
{
- m_items[n] = (size_t)-1;
- delete m_cells[n];
- m_cells[n] = NULL;
+ InvalidateItem(n);
}
}
m_next = 0;
}
+ // forget the cached value of the item(s) between the given ones (inclusive)
+ void InvalidateRange(size_t from, size_t to)
+ {
+ for ( size_t n = 0; n < SIZE; n++ )
+ {
+ if ( m_items[n] >= from && m_items[n] <= to )
+ {
+ InvalidateItem(n);
+ }
+ }
+ }
+
private:
// the max number of the items we cache
enum { SIZE = 50 };
class wxHtmlListBoxStyle : public wxDefaultHtmlRenderingStyle
{
public:
- wxHtmlListBoxStyle(wxHtmlListBox& hlbox) : m_hlbox(hlbox) { }
+ wxHtmlListBoxStyle(const wxHtmlListBox& hlbox) : m_hlbox(hlbox) { }
virtual wxColour GetSelectedTextColour(const wxColour& colFg)
{
event.Skip();
}
+void wxHtmlListBox::RefreshLine(size_t line)
+{
+ m_cache->InvalidateRange(line, line);
+
+ wxVListBox::RefreshLine(line);
+}
+
+void wxHtmlListBox::RefreshLines(size_t from, size_t to)
+{
+ m_cache->InvalidateRange(from, to);
+
+ wxVListBox::RefreshLines(from, to);
+}
+
void wxHtmlListBox::RefreshAll()
{
m_cache->Clear();
if ( IsSelected(n) )
{
wxHtmlSelection htmlSel;
- htmlSel.Set(wxPoint(0, 0), cell, wxPoint(INT_MAX, INT_MAX), cell);
+ htmlSel.Set(wxPoint(0,0), cell, wxPoint(INT_MAX, INT_MAX), cell);
htmlRendInfo.SetSelection(&htmlSel);
if ( m_htmlRendStyle )
htmlRendInfo.SetStyle(m_htmlRendStyle);
return cell->GetHeight() + cell->GetDescent() + 4;
}
-#endif
+#endif // wxUSE_HTML
+