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Correct some redraw glitches in the header when resizing, and also

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double buffer the header to eliminate the rest of the flicker.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31199 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robin Dunn
2004-12-31 20:21:44 +00:00
parent acf2ac3757
commit e778b8f059
1 changed files with 28 additions and 12 deletions
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40
wxPython/contrib/gizmos/wxCode/src/treelistctrl.cpp
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@@ -152,6 +152,7 @@ public:
void DrawCurrent();
void AdjustDC(wxDC& dc);
void OnEraseBackground( wxEraseEvent& event );
void OnPaint( wxPaintEvent &event );
void OnMouse( wxMouseEvent &event );
void OnSetFocus( wxFocusEvent &event );
@@ -1075,9 +1076,10 @@ void wxTreeListTextCtrl::OnKillFocus( wxFocusEvent &event )
IMPLEMENT_DYNAMIC_CLASS(wxTreeListHeaderWindow,wxWindow);
BEGIN_EVENT_TABLE(wxTreeListHeaderWindow,wxWindow)
EVT_PAINT (wxTreeListHeaderWindow::OnPaint)
EVT_MOUSE_EVENTS (wxTreeListHeaderWindow::OnMouse)
EVT_SET_FOCUS (wxTreeListHeaderWindow::OnSetFocus)
EVT_ERASE_BACKGROUND (wxTreeListHeaderWindow::OnEraseBackground)
EVT_PAINT (wxTreeListHeaderWindow::OnPaint)
EVT_MOUSE_EVENTS (wxTreeListHeaderWindow::OnMouse)
EVT_SET_FOCUS (wxTreeListHeaderWindow::OnSetFocus)
END_EVENT_TABLE()
void wxTreeListHeaderWindow::Init()
@@ -1190,26 +1192,35 @@ void wxTreeListHeaderWindow::AdjustDC(wxDC& dc)
dc.SetDeviceOrigin( -x * xpix, 0 );
}
void wxTreeListHeaderWindow::OnEraseBackground( wxEraseEvent& event )
{
}
void wxTreeListHeaderWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
{
#ifdef __WXGTK__
wxClientDC dc( this );
wxClientDC real_dc( this );
#else
wxPaintDC dc( this );
wxPaintDC real_dc( this );
#endif
PrepareDC( dc );
AdjustDC( dc );
dc.BeginDrawing();
dc.SetFont( GetFont() );
AdjustDC( real_dc );
// width and height of the entire header window
int w, h;
GetClientSize( &w, &h );
m_owner->CalcUnscrolledPosition(w, 0, &w, NULL);
// Setup double buffering to eliminate the flicker
wxMemoryDC dc;
wxBitmap buffer(w, h);
dc.SelectObject(buffer);
dc.SetBackground(wxBrush(GetBackgroundColour()));
dc.Clear();
dc.BeginDrawing();
dc.SetFont( GetFont() );
dc.SetBackgroundMode(wxTRANSPARENT);
// do *not* use the listctrl colour for headers - one day we will have a
@@ -1298,8 +1309,10 @@ void wxTreeListHeaderWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
m_parent->IsEnabled() ? 0 : wxCONTROL_DISABLED);
}
// Finish up by drawing the buffer to the real dc
dc.EndDrawing();
dc.SelectObject(wxNullBitmap);
real_dc.DrawBitmap(buffer, 0, 0, false);
}
void wxTreeListHeaderWindow::DrawCurrent()
@@ -4645,7 +4658,10 @@ void wxTreeListCtrl::OnSize(wxSizeEvent& WXUNUSED(event))
int w, h;
GetClientSize(&w, &h);
if (m_header_win)
{
m_header_win->SetSize(0, 0, w, m_headerHeight);
m_header_win->Refresh(false);
}
if (m_main_win)
m_main_win->SetSize(0, m_headerHeight + 1, w, h - m_headerHeight - 1);
}