void wxScrollHelperNative::AdjustScrollbars()
{
// this flag indicates which window has the scrollbars
m_win->m_hasScrolling = m_xScrollPixelsPerLine != 0 ||
m_yScrollPixelsPerLine != 0;
int vw, vh;
m_targetWindow->GetVirtualSize( &vw, &vh );
int w;
m_targetWindow->GetClientSize(&w, NULL);
DoAdjustHScrollbar(w, vw);
int h;
m_targetWindow->GetClientSize(NULL, &h);
DoAdjustVScrollbar(h, vh);
const int w_old = w;
m_targetWindow->GetClientSize(&w, NULL);
if ( w != w_old )
{
// It is necessary to repeat the calculations in this case to avoid an
// observed infinite series of size events, involving alternating
// changes in visibility of the scrollbars.
// At this point, GTK+ has already queued a resize, which will cause
// AdjustScrollbars() to be called again. If the scrollbar visibility
// is not correct before then, yet another resize will occur, possibly
// leading to an unending series if the sizes are just right.
DoAdjustHScrollbar(w, vw);
m_targetWindow->GetClientSize(NULL, &h);
DoAdjustVScrollbar(h, vh);
}
}
void wxScrollHelper::AdjustScrollbars()
{
int vw, vh;
m_targetWindow->GetVirtualSize(&vw, &vh);
int w, h;
const wxSize availSize = GetSizeAvailableForScrollTarget(
m_win->GetSize() - m_win->GetWindowBorderSize());
if ( availSize.x >= vw && availSize.y >= vh )
{
w = availSize.x;
h = availSize.y;
// we know that the scrollbars will be removed
DoAdjustHScrollbar(w, vw);
DoAdjustVScrollbar(h, vh);
return;
}
m_targetWindow->GetClientSize(&w, NULL);
DoAdjustHScrollbar(w, vw);
m_targetWindow->GetClientSize(NULL, &h);
DoAdjustVScrollbar(h, vh);
const int w_old = w;
m_targetWindow->GetClientSize(&w, NULL);
if ( w != w_old )
{
// It is necessary to repeat the calculations in this case to avoid an
// observed infinite series of size events, involving alternating
// changes in visibility of the scrollbars.
// At this point, GTK+ has already queued a resize, which will cause
// AdjustScrollbars() to be called again. If the scrollbar visibility
// is not correct before then, yet another resize will occur, possibly
// leading to an unending series if the sizes are just right.
DoAdjustHScrollbar(w, vw);
m_targetWindow->GetClientSize(NULL, &h);
DoAdjustVScrollbar(h, vh);
}
}