void HandleWidgetSizeAllocated(object o, Gtk.SizeAllocatedArgs args)
{
if ((enabledEvents & sizeCheckEvents) == 0)
{
// If no sizing event is set, it means this handler was set because there is a min size.
// In that case, there isn't any thing left to do here
return;
}
Toolkit.Invoke(delegate {
if (sizeCheckStep == SizeCheckStep.SizeRequest)
{
Console.WriteLine("SizeRequest not called. Should not happen");
}
else if (sizeCheckStep == SizeCheckStep.PreAllocate || sizeCheckStep == SizeCheckStep.AdjustSize)
{
if (EventSink.GetSizeRequestMode() == SizeRequestMode.HeightForWidth)
{
realRequestedWidth = args.Allocation.Width;
Toolkit.Invoke(delegate {
realRequestedHeight = (int)eventSink.OnGetPreferredHeightForWidth(args.Allocation.Width).MinSize;
});
sizeCheckStep = SizeCheckStep.AdjustSize;
Widget.QueueResize();
}
else
{
realRequestedHeight = args.Allocation.Height;
Toolkit.Invoke(delegate {
realRequestedWidth = (int)eventSink.OnGetPreferredWidthForHeight(args.Allocation.Height).MinSize;
});
sizeCheckStep = SizeCheckStep.AdjustSize;
Widget.QueueResize();
}
}
});
}
void HandleWidgetSizeAllocated(object o, Gtk.SizeAllocatedArgs args)
{
if ((enabledEvents & sizeCheckEvents) == 0)
{
// If no sizing event is set, it means this handler was set because there is a min size.
// In that case, there isn't any thing left to do here
return;
}
Toolkit.Invoke(delegate {
if (sizeCheckStep == SizeCheckStep.SizeRequest && (enabledEvents & sizeCheckEvents) != sizeCheckEvents)
{
var ev = EventSink.GetSizeRequestMode() == SizeRequestMode.HeightForWidth ? WidgetEvent.PreferredWidthCheck | WidgetEvent.PreferredHeightForWidthCheck : WidgetEvent.PreferredHeightCheck | WidgetEvent.PreferredWidthForHeightCheck;
// If all size request methods are overriden, the widget's size request won't be called, so this status is correct
if ((enabledEvents & ev) != ev)
{
Console.WriteLine("SizeRequest not called. Should not happen.");
}
}
else if (sizeCheckStep == SizeCheckStep.PreAllocate || sizeCheckStep == SizeCheckStep.AdjustSize)
{
if (EventSink.GetSizeRequestMode() == SizeRequestMode.HeightForWidth)
{
realRequestedHeight = (int)eventSink.OnGetPreferredHeightForWidth(args.Allocation.Width).MinSize;
sizeCheckStep = SizeCheckStep.AdjustSize;
Widget.QueueResize();
}
else
{
realRequestedWidth = (int)eventSink.OnGetPreferredWidthForHeight(args.Allocation.Height).MinSize;
sizeCheckStep = SizeCheckStep.AdjustSize;
Widget.QueueResize();
}
}
});
}
void HandleWidgetSizeRequested(object o, Gtk.SizeRequestedArgs args)
{
if (gettingPreferredSize)
{
return;
}
var req = args.Requisition;
if ((enabledEvents & sizeCheckEvents) == 0)
{
// If no sizing event is set, it means this handler was set because there is a min size.
if (Frontend.MinWidth != -1)
{
req.Width = (int)Frontend.MinWidth;
}
if (Frontend.MinHeight != -1)
{
req.Height = (int)Frontend.MinHeight;
}
return;
}
if (sizeCheckStep == SizeCheckStep.AdjustSize)
{
req.Width = realRequestedWidth;
req.Height = realRequestedHeight;
sizeCheckStep = SizeCheckStep.FinalAllocate;
}
else
{
Toolkit.Invoke(delegate {
if (EventSink.GetSizeRequestMode() == SizeRequestMode.HeightForWidth)
{
if ((enabledEvents & WidgetEvent.PreferredWidthCheck) != 0)
{
var w = eventSink.OnGetPreferredWidth();
req.Width = (int)w.MinSize;
}
if ((enabledEvents & WidgetEvent.PreferredHeightForWidthCheck) != 0)
{
if (doubleSizeRequestCheckSupported)
{
sizeCheckStep = SizeCheckStep.PreAllocate;
realRequestedWidth = req.Width; // Store the width, since it will be used in the next iteration
}
else
{
var h = eventSink.OnGetPreferredHeightForWidth(req.Width);
req.Height = (int)h.MinSize;
sizeCheckStep = SizeCheckStep.FinalAllocate;
}
}
else if ((enabledEvents & WidgetEvent.PreferredHeightCheck) != 0)
{
var h = eventSink.OnGetPreferredHeight();
req.Height = (int)h.MinSize;
sizeCheckStep = SizeCheckStep.FinalAllocate;
}
}
else
{
if ((enabledEvents & WidgetEvent.PreferredHeightCheck) != 0)
{
var h = eventSink.OnGetPreferredHeight();
req.Height = (int)h.MinSize;
}
if ((enabledEvents & WidgetEvent.PreferredWidthForHeightCheck) != 0)
{
if (doubleSizeRequestCheckSupported)
{
sizeCheckStep = SizeCheckStep.PreAllocate;
realRequestedHeight = req.Height; // Store the height, since it will be used in the next iteration
}
else
{
var w = eventSink.OnGetPreferredWidthForHeight(req.Height);
req.Width = (int)w.MinSize;
sizeCheckStep = SizeCheckStep.FinalAllocate;
}
}
else if ((enabledEvents & WidgetEvent.PreferredWidthCheck) != 0)
{
var w = eventSink.OnGetPreferredWidth();
req.Width = (int)w.MinSize;
sizeCheckStep = SizeCheckStep.FinalAllocate;
}
}
});
}
args.Requisition = req;
}