\membersection{wxWindow::Refresh}\label{wxwindowrefresh}
-\func{virtual void}{Refresh}{\param{bool}{ eraseBackground = {\tt true}}, \param{const wxRect* }{rect
-= NULL}}
+\func{virtual void}{Refresh}{\param{bool}{ eraseBackground = {\tt true}}, \param{const wxRect* }{rect = NULL}}
-Causes this window, and all of its children recursively, to be repainted. Note
-that repainting doesn't happen immediately but only during the next event loop
-iteration, if you need to update the window immediately you should use
-\helpref{Update}{wxwindowupdate} instead.
+Causes this window, and all of its children recursively (except under wxGTK1
+where this is not implemented), to be repainted. Note that repainting doesn't
+happen immediately but only during the next event loop iteration, if you need
+to update the window immediately you should use \helpref{Update}{wxwindowupdate}
+instead.
\wxheading{Parameters}
\func{virtual void}{Update}{\void}
-Calling this method immediately repaints the invalidated area of the window
-while this would usually only happen when the flow of control returns to the
-event loop. Notice that this function doesn't refresh the window and does
-nothing if the window hadn't been already repainted. Use
-\helpref{Refresh}{wxwindowrefresh} first if you want to immediately redraw the
-window unconditionally.
+Calling this method immediately repaints the invalidated area of the window and
+all of its children recursively while this would usually only happen when the
+flow of control returns to the event loop. Notice that this function doesn't
+refresh the window and does nothing if the window hadn't been already
+repainted. Use \helpref{Refresh}{wxwindowrefresh} first if you want to
+immediately redraw the window unconditionally.
\membersection{wxWindow::UpdateWindowUI}\label{wxwindowupdatewindowui}
void wxWindowGTK::Refresh( bool eraseBackground, const wxRect *rect )
{
- if (!m_widget) return;
- if (!m_widget->window) return;
+ if (!m_widget)
+ return;
+ if (!m_widget->window)
+ return;
#ifndef __WXGTK20__
if (g_isIdle)
wxapp_install_idle_handler();
- wxRect myRect(0,0,0,0);
+ wxRect myRect;
if (m_wxwindow && rect)
{
myRect.SetSize(wxSize( m_wxwindow->allocation.width,
m_wxwindow->allocation.height));
- myRect.Intersect(*rect);
- if (!myRect.width || !myRect.height)
+ if ( myRect.Intersect(*rect).IsEmpty() )
+ {
// nothing to do, rectangle is empty
return;
+ }
+
rect = &myRect;
}
+ // schedule the area for later updating in GtkUpdate()
if (eraseBackground && m_wxwindow && m_wxwindow->window)
{
if (rect)
{
- // Schedule for later Updating in ::Update() or ::OnInternalIdle().
m_clearRegion.Union( rect->x, rect->y, rect->width, rect->height );
}
else
{
- // Schedule for later Updating in ::Update() or ::OnInternalIdle().
m_clearRegion.Clear();
m_clearRegion.Union( 0, 0, m_wxwindow->allocation.width, m_wxwindow->allocation.height );
}
{
if (m_wxwindow)
{
- // Schedule for later Updating in ::Update() or ::OnInternalIdle().
m_updateRegion.Union( rect->x, rect->y, rect->width, rect->height );
}
else
{
if (m_wxwindow)
{
- // Schedule for later Updating in ::Update() or ::OnInternalIdle().
m_updateRegion.Clear();
m_updateRegion.Union( 0, 0, m_wxwindow->allocation.width, m_wxwindow->allocation.height );
}
gtk_widget_draw( m_widget, (GdkRectangle*) NULL );
}
}
-#else
+#else // GTK+ 2
if (m_wxwindow)
{
+ GdkRectangle gdk_rect,
+ *p;
if (rect)
{
- GdkRectangle gdk_rect;
gdk_rect.x = rect->x;
gdk_rect.y = rect->y;
gdk_rect.width = rect->width;
gdk_rect.height = rect->height;
- gdk_window_invalidate_rect( GTK_PIZZA(m_wxwindow)->bin_window, &gdk_rect, TRUE );
+ p = &gdk_rect;
}
- else
+ else // invalidate everything
{
- gdk_window_invalidate_rect( GTK_PIZZA(m_wxwindow)->bin_window, NULL, TRUE );
+ p = NULL;
}
+
+ gdk_window_invalidate_rect( GTK_PIZZA(m_wxwindow)->bin_window, p, TRUE );
}
-#endif
+#endif // GTK+ 1/2
}
void wxWindowGTK::Update()
if (!m_updateRegion.IsEmpty())
GtkSendPaintEvents();
#endif
+
+ // for consistency with other platforms (and also because it's convenient
+ // to be able to update an entire TLW by calling Update() only once), we
+ // should also update all our children here
+ for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
+ node;
+ node = node->GetNext() )
+ {
+ node->GetData()->GtkUpdate();
+ }
}
void wxWindowGTK::GtkSendPaintEvents()
void wxWindowGTK::Refresh( bool eraseBackground, const wxRect *rect )
{
- if (!m_widget) return;
- if (!m_widget->window) return;
+ if (!m_widget)
+ return;
+ if (!m_widget->window)
+ return;
#ifndef __WXGTK20__
if (g_isIdle)
wxapp_install_idle_handler();
- wxRect myRect(0,0,0,0);
+ wxRect myRect;
if (m_wxwindow && rect)
{
myRect.SetSize(wxSize( m_wxwindow->allocation.width,
m_wxwindow->allocation.height));
- myRect.Intersect(*rect);
- if (!myRect.width || !myRect.height)
+ if ( myRect.Intersect(*rect).IsEmpty() )
+ {
// nothing to do, rectangle is empty
return;
+ }
+
rect = &myRect;
}
+ // schedule the area for later updating in GtkUpdate()
if (eraseBackground && m_wxwindow && m_wxwindow->window)
{
if (rect)
{
- // Schedule for later Updating in ::Update() or ::OnInternalIdle().
m_clearRegion.Union( rect->x, rect->y, rect->width, rect->height );
}
else
{
- // Schedule for later Updating in ::Update() or ::OnInternalIdle().
m_clearRegion.Clear();
m_clearRegion.Union( 0, 0, m_wxwindow->allocation.width, m_wxwindow->allocation.height );
}
{
if (m_wxwindow)
{
- // Schedule for later Updating in ::Update() or ::OnInternalIdle().
m_updateRegion.Union( rect->x, rect->y, rect->width, rect->height );
}
else
{
if (m_wxwindow)
{
- // Schedule for later Updating in ::Update() or ::OnInternalIdle().
m_updateRegion.Clear();
m_updateRegion.Union( 0, 0, m_wxwindow->allocation.width, m_wxwindow->allocation.height );
}
gtk_widget_draw( m_widget, (GdkRectangle*) NULL );
}
}
-#else
+#else // GTK+ 2
if (m_wxwindow)
{
+ GdkRectangle gdk_rect,
+ *p;
if (rect)
{
- GdkRectangle gdk_rect;
gdk_rect.x = rect->x;
gdk_rect.y = rect->y;
gdk_rect.width = rect->width;
gdk_rect.height = rect->height;
- gdk_window_invalidate_rect( GTK_PIZZA(m_wxwindow)->bin_window, &gdk_rect, TRUE );
+ p = &gdk_rect;
}
- else
+ else // invalidate everything
{
- gdk_window_invalidate_rect( GTK_PIZZA(m_wxwindow)->bin_window, NULL, TRUE );
+ p = NULL;
}
+
+ gdk_window_invalidate_rect( GTK_PIZZA(m_wxwindow)->bin_window, p, TRUE );
}
-#endif
+#endif // GTK+ 1/2
}
void wxWindowGTK::Update()
if (!m_updateRegion.IsEmpty())
GtkSendPaintEvents();
#endif
+
+ // for consistency with other platforms (and also because it's convenient
+ // to be able to update an entire TLW by calling Update() only once), we
+ // should also update all our children here
+ for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
+ node;
+ node = node->GetNext() )
+ {
+ node->GetData()->GtkUpdate();
+ }
}
void wxWindowGTK::GtkSendPaintEvents()