protected virtual MouseScrolledEventArgs GetScrollEventArgs(Gtk.ScrollEventArgs args)
{
var direction = args.Event.Direction.ToXwtValue();
var pointer_coords = EventsRootWidget.CheckPointerCoordinates(args.Event.Window, args.Event.X, args.Event.Y);
return(new MouseScrolledEventArgs((long)args.Event.Time, pointer_coords.X, pointer_coords.Y, direction));
}
protected override void OnSetBackgroundColor(Xwt.Drawing.Color color)
{
base.OnSetBackgroundColor(color);
Widget.SetBackgroundColor(color);
Widget.SetChildBackgroundColor(color);
EventsRootWidget.SetBackgroundColor(color);
}
protected void AllocEventBox(bool visibleWindow = false)
{
// Wraps the widget with an event box. Required for some
// widgets such as Label which doesn't have its own gdk window
if (!NeedsEventBox)
{
return;
}
if (eventBox == null && !EventsRootWidget.GetHasWindow())
{
if (EventsRootWidget is Gtk.EventBox)
{
((Gtk.EventBox)EventsRootWidget).VisibleWindow = true;
return;
}
eventBox = new Gtk.EventBox();
eventBox.Visible = Widget.Visible;
eventBox.Sensitive = Widget.Sensitive;
eventBox.VisibleWindow = visibleWindow;
GtkEngine.ReplaceChild(Widget, eventBox);
eventBox.Add(Widget);
}
}
protected override void OnSetBackgroundColor(Xwt.Drawing.Color color)
{
if (EventsRootWidget != null)
{
EventsRootWidget.SetBackgroundColor(color);
}
base.OnSetBackgroundColor(color);
}
protected virtual ButtonEventArgs GetButtonReleaseEventArgs(Gtk.ButtonReleaseEventArgs args)
{
var a = new ButtonEventArgs();
var pointer_coords = EventsRootWidget.CheckPointerCoordinates(args.Event.Window, args.Event.X, args.Event.Y);
a.X = pointer_coords.X;
a.Y = pointer_coords.Y;
a.Button = (PointerButton)args.Event.Button;
return(a);
}
void EnableLinkEvents()
{
if (!linkEventEnabled)
{
linkEventEnabled = true;
AllocEventBox();
EventsRootWidget.AddEvents((int)Gdk.EventMask.PointerMotionMask);
EventsRootWidget.MotionNotifyEvent += HandleMotionNotifyEvent;
EventsRootWidget.AddEvents((int)Gdk.EventMask.ButtonReleaseMask);
EventsRootWidget.ButtonReleaseEvent += HandleButtonReleaseEvent;
EventsRootWidget.AddEvents((int)Gdk.EventMask.LeaveNotifyMask);
EventsRootWidget.LeaveNotifyEvent += HandleLeaveNotifyEvent;
}
}
void SubscribeCursorEnterLeaveEvent()
{
if (!cursorEnterLeaveSubscribed)
{
cursorEnterLeaveSubscribed = true; // subscribe only once
EventsRootWidget.AddEvents((int)Gdk.EventMask.EnterNotifyMask);
EventsRootWidget.AddEvents((int)Gdk.EventMask.LeaveNotifyMask);
EventsRootWidget.EnterNotifyEvent += (o, args) => {
immediateCursorChange = true;
if (gdkCursor != null)
{
((Gtk.Widget)o).GdkWindow.Cursor = gdkCursor;
}
};
EventsRootWidget.LeaveNotifyEvent += (o, args) => {
immediateCursorChange = false;
((Gtk.Widget)o).GdkWindow.Cursor = null;
};
}
}
protected virtual ButtonEventArgs GetButtonPressEventArgs(Gtk.ButtonPressEventArgs args)
{
var a = new ButtonEventArgs();
var pointer_coords = EventsRootWidget.CheckPointerCoordinates(args.Event.Window, args.Event.X, args.Event.Y);
a.X = pointer_coords.X;
a.Y = pointer_coords.Y;
a.Button = (PointerButton)args.Event.Button;
if (args.Event.Type == Gdk.EventType.TwoButtonPress)
{
a.MultiplePress = 2;
}
else if (args.Event.Type == Gdk.EventType.ThreeButtonPress)
{
a.MultiplePress = 3;
}
else
{
a.MultiplePress = 1;
}
return(a);
}
protected virtual MouseMovedEventArgs GetMouseMovedEventArgs(Gtk.MotionNotifyEventArgs args)
{
var pointer_coords = EventsRootWidget.CheckPointerCoordinates(args.Event.Window, args.Event.X, args.Event.Y);
return(new MouseMovedEventArgs((long)args.Event.Time, pointer_coords.X, pointer_coords.Y));
}
public virtual void EnableEvent(object eventId)
{
if (eventId is WidgetEvent)
{
WidgetEvent ev = (WidgetEvent)eventId;
switch (ev)
{
case WidgetEvent.DragLeave:
AllocEventBox();
EventsRootWidget.DragLeave += HandleWidgetDragLeave;
break;
case WidgetEvent.DragStarted:
AllocEventBox();
EventsRootWidget.DragBegin += HandleWidgetDragBegin;
break;
case WidgetEvent.KeyPressed:
Widget.KeyPressEvent += HandleKeyPressEvent;
break;
case WidgetEvent.KeyReleased:
Widget.KeyReleaseEvent += HandleKeyReleaseEvent;
break;
case WidgetEvent.GotFocus:
EventsRootWidget.AddEvents((int)Gdk.EventMask.FocusChangeMask);
Widget.FocusGrabbed += HandleWidgetFocusInEvent;
break;
case WidgetEvent.LostFocus:
EventsRootWidget.AddEvents((int)Gdk.EventMask.FocusChangeMask);
Widget.FocusOutEvent += HandleWidgetFocusOutEvent;
break;
case WidgetEvent.MouseEntered:
AllocEventBox();
EventsRootWidget.AddEvents((int)Gdk.EventMask.EnterNotifyMask);
EventsRootWidget.EnterNotifyEvent += HandleEnterNotifyEvent;
break;
case WidgetEvent.MouseExited:
AllocEventBox();
EventsRootWidget.AddEvents((int)Gdk.EventMask.LeaveNotifyMask);
EventsRootWidget.LeaveNotifyEvent += HandleLeaveNotifyEvent;
break;
case WidgetEvent.ButtonPressed:
AllocEventBox();
EventsRootWidget.AddEvents((int)Gdk.EventMask.ButtonPressMask);
EventsRootWidget.ButtonPressEvent += HandleButtonPressEvent;
break;
case WidgetEvent.ButtonReleased:
AllocEventBox();
EventsRootWidget.AddEvents((int)Gdk.EventMask.ButtonReleaseMask);
EventsRootWidget.ButtonReleaseEvent += HandleButtonReleaseEvent;
break;
case WidgetEvent.MouseMoved:
AllocEventBox();
EventsRootWidget.AddEvents((int)Gdk.EventMask.PointerMotionMask);
EventsRootWidget.MotionNotifyEvent += HandleMotionNotifyEvent;
break;
case WidgetEvent.BoundsChanged:
Widget.SizeAllocated += HandleWidgetBoundsChanged;
break;
case WidgetEvent.MouseScrolled:
AllocEventBox();
EventsRootWidget.AddEvents((int)Gdk.EventMask.ScrollMask);
Widget.ScrollEvent += HandleScrollEvent;
break;
}
if ((ev & dragDropEvents) != 0 && (enabledEvents & dragDropEvents) == 0)
{
// Enabling a drag&drop event for the first time
AllocEventBox();
EventsRootWidget.DragDrop += HandleWidgetDragDrop;
EventsRootWidget.DragMotion += HandleWidgetDragMotion;
EventsRootWidget.DragDataReceived += HandleWidgetDragDataReceived;
}
if ((ev & WidgetEvent.PreferredSizeCheck) != 0)
{
EnableSizeCheckEvents();
}
enabledEvents |= ev;
}
}
protected virtual void OnSetBackgroundColor(Color color)
{
EventsRootWidget.SetBackgroundColor(color);
}
