public static Gdk.Point ToWindowCoordinates(Gtk.Widget widget, Gdk.Window w, int x, int y)
{
int ox, oy;
w.GetOrigin(out ox, out oy);
ox += widget.Allocation.X;
oy += widget.Allocation.Y;
return(new Gdk.Point(x - ox, y - oy));
}
public void GetPosition(out int x, out int y, Atk.CoordType coordType)
{
Gdk.Window window = null;
if (!widget.IsDrawable)
{
x = y = int.MinValue;
return;
}
if (widget.Parent != null)
{
x = widget.Allocation.X;
y = widget.Allocation.Y;
window = widget.ParentWindow;
}
else
{
x = 0;
y = 0;
window = widget.GdkWindow;
}
int x_window, y_window;
window.GetOrigin(out x_window, out y_window);
x += x_window;
y += y_window;
if (coordType == Atk.CoordType.Window)
{
window = widget.GdkWindow.Toplevel;
int x_toplevel, y_toplevel;
window.GetOrigin(out x_toplevel, out y_toplevel);
x -= x_toplevel;
y -= y_toplevel;
}
}
public static Gdk.Point ToScreenCoordinates(Gtk.Widget widget, Gdk.Window w, int x, int y)
{
int ox, oy;
w.GetOrigin(out ox, out oy);
//Bug 31032 - this is workaround bug in GTK on Windows OS which has widget.Allocation.X/Y
//relative to widget.GdkWindow.Toplevel instead to widget.GdkWindow which is GdkWindow decicated
//to TreeView so widget.Allocation.X/Y should always be 0,0(which is true on Mac)
//hence skipping adding Allocation.X/Y since they should always be 0,0 anyway
if (!(widget is TreeView))
{
ox += widget.Allocation.X;
oy += widget.Allocation.Y;
}
return(new Gdk.Point(ox + x, oy + y));
}
private void Move()
{
Gdk.Window treewindow = d_treeview.GdkWindow;
Realize();
int treeX;
int treeY;
int treeWidth;
int treeHeight;
treewindow.GetOrigin(out treeX, out treeY);
treewindow.GetSize(out treeWidth, out treeHeight);
int x = treeX + treeWidth - Allocation.Width - 6;
int y = treeY + treeHeight - Allocation.Height - 6;
Move(x, y);
}
/// <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);
}
/// <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;
// NOTE: we don't gtk_menu_attach_to_widget to the parent because it seems to cause issues.
// The expanders in other treeviews in MD stop working when we detach it, and detaching is necessary
// to prevent memory leaks.
// Attaching means menu moves when parent is moved and is destroyed when parent is destroyed. Neither is
// particularly important for us.
// See https://bugzilla.xamarin.com/show_bug.cgi?id=4388
if (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.X + geometry.Width)
{
if (flip_left)
{
x -= request.Width;
}
else
{
x = geometry.X + geometry.Width - request.Width;
}
if (x < geometry.Left)
{
x = geometry.Left;
}
}
if (y + request.Height > geometry.Y + geometry.Height)
{
if (flip_up)
{
y -= request.Height;
}
else
{
y = geometry.Y + geometry.Height - 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);
}
