public ToolMenuButton(Gtk.Toolbar toolbar,
Gtk.Image image,
string label,
Gtk.Menu menu) : base()
{
this.IconWidget = image;
Gtk.Label l = new Gtk.Label(label);
l.UseUnderline = true;
this.LabelWidget = l;
this.CanFocus = true;
// this.FocusOnClick = false; // TODO: Not supported anymore?
this.menu = menu;
menu.AttachToWidget(this, GuiUtils.DetachMenu);
menu.Deactivated += ReleaseButton;
this.ShowAll();
}
protected override void ShowPopupMenu(Gdk.Event ev)
{
Gtk.Menu menu = new Gtk.Menu();
for (int i = 0; i < ObjectGroupEditor.ObjectNames.Length; i++)
{
if (i >= 2 && i <= 4) // Skip "Pointer" objects
{
continue;
}
Gtk.MenuItem item = new Gtk.MenuItem("Add " + ObjectGroupEditor.ObjectNames[i]);
menu.Append(item);
int index = i;
item.Activated += (sender, args) => {
SetSelectedIndex(ObjectGroup.AddObject((ObjectType)index));
};
}
if (HoveringIndex != -1)
{
menu.Append(new Gtk.SeparatorMenuItem());
Gtk.MenuItem deleteItem = new Gtk.MenuItem("Delete");
deleteItem.Activated += (sender, args) => {
if (SelectedIndex != -1)
{
ObjectGroup.RemoveObject(SelectedIndex);
}
};
menu.Append(deleteItem);
}
menu.AttachToWidget(this, null);
menu.ShowAll();
menu.PopupAtPointer(ev);
}
private bool DoPopupMenu(Gdk.EventButton evnt)
{
Gtk.Menu menu = new Gtk.Menu();
PopulatePopup(this, menu);
if (menu.Children.Length == 0)
{
return(false);
}
menu.AttachToWidget(this, null);
if (evnt != null)
{
menu.Popup(null, null, null, evnt.Button, evnt.Time);
}
else
{
menu.Popup();
}
return(true);
}
/// <summary>Shows a context menu.</summary>
/// <param name='menu'>The menu.</param>
/// <param name='parent'>The parent widget.</param>
/// <param name='evt'>The mouse event. May be null if triggered by keyboard.</param>
/// <param name='caret'>The caret/selection position within the parent, if the EventButton is null.</param>
public static void ShowContextMenu(Gtk.Menu menu, Gtk.Widget parent, Gdk.EventButton evt, Gdk.Rectangle caret)
{
Gtk.MenuPositionFunc posFunc = null;
if (parent != null)
{
menu.AttachToWidget(parent, null);
posFunc = delegate(Gtk.Menu m, out int x, out int y, out bool pushIn) {
Gdk.Window window = evt != null? evt.Window : parent.GdkWindow;
window.GetOrigin(out x, out y);
var alloc = parent.Allocation;
if (evt != null)
{
x += (int)evt.X;
y += (int)evt.Y;
}
else if (caret.X >= alloc.X && caret.Y >= alloc.Y)
{
x += caret.X;
y += caret.Y + caret.Height;
}
else
{
x += alloc.X;
y += alloc.Y;
}
Gtk.Requisition request = m.SizeRequest();
var screen = parent.Screen;
Gdk.Rectangle geometry = GetUsableMonitorGeometry(screen, screen.GetMonitorAtPoint(x, y));
//whether to push or flip menus that would extend offscreen
//FIXME: this is the correct behaviour for mac, check other platforms
bool flip_left = true;
bool flip_up = false;
if (x + request.Width > geometry.Right)
{
if (flip_left)
{
x -= request.Width;
}
else
{
x = geometry.Right - request.Width;
}
if (x < geometry.Left)
{
x = geometry.Left;
}
}
if (y + request.Height > geometry.Bottom)
{
if (flip_up)
{
y -= request.Height;
}
else
{
y = geometry.Bottom - request.Height;
}
if (y < geometry.Top)
{
y = geometry.Top;
}
}
pushIn = false;
};
}
uint time;
uint button;
if (evt == null)
{
time = Gtk.Global.CurrentEventTime;
button = 0;
}
else
{
time = evt.Time;
button = evt.Button;
}
//HACK: work around GTK menu issues on mac when passing button to menu.Popup
//some menus appear and immediately hide, and submenus don't activate
if (Platform.IsMac)
{
button = 0;
}
menu.Popup(null, null, posFunc, button, time);
}