Gdk.Rectangle GetUsableMonitorGeometry(Gdk.Rectangle caret)
{
Screen screen = null;
if (parent != null)
{
screen = parent.Screen;
}
else if (xwtParent != null)
{
screen = Gdk.Screen.Default; // FIXME: should we try to get the Screen from the backend?
}
if (screen != null)
{
return(GtkWorkarounds.GetUsableMonitorGeometry(screen, screen.GetMonitorAtPoint(caret.X, caret.Y)));
}
return(Gdk.Rectangle.Zero);
}
void PositionWidget(Gtk.Widget widget)
{
if (!(widget is Gtk.Window))
{
return;
}
int ox, oy;
ParentWindow.GetOrigin(out ox, out oy);
int w;
int itemXPosition = GetHoverXPosition(out w);
int dx = ox + this.Allocation.X + itemXPosition;
int dy = oy + this.Allocation.Bottom;
var req = widget.SizeRequest();
Gdk.Rectangle geometry = GtkWorkarounds.GetUsableMonitorGeometry(Screen, Screen.GetMonitorAtPoint(dx, dy));
int width = System.Math.Max(req.Width, w);
if (width >= geometry.Width - spacing * 2)
{
width = geometry.Width - spacing * 2;
dx = geometry.Left + spacing;
}
widget.WidthRequest = width;
if (dy + req.Height > geometry.Bottom)
{
dy = oy + this.Allocation.Y - req.Height;
}
if (dx + width > geometry.Right)
{
dx = geometry.Right - width;
}
(widget as Gtk.Window).Move(dx, dy);
(widget as Gtk.Window).Resize(width, req.Height);
widget.GrabFocus();
}
public virtual void RepositionWindow(Gdk.Rectangle?newCaret = null)
{
if (parent == null)
{
return;
}
int x, y;
if (newCaret.HasValue) //Update caret if parameter is given
{
currentCaret = newCaret.Value;
}
Gdk.Rectangle caret = currentCaret;
Gdk.Window window = targetWindow;
if (targetWindow == null)
{
return;
}
PopupPosition position = Theme.TargetPosition;
this.position = Theme.TargetPosition;
UpdatePadding();
window.GetOrigin(out x, out y);
var alloc = parent.Allocation;
if (eventProvided)
{
caret.X = x;
caret.Y = y;
caret.Width = caret.Height = 1;
}
else
{
if (caret.Equals(Gdk.Rectangle.Zero))
{
caret = new Gdk.Rectangle(0, 0, alloc.Width, alloc.Height);
}
caret = GtkUtil.ToScreenCoordinates(parent, parent.GdkWindow, caret);
}
Gtk.Requisition request = SizeRequest();
var screen = parent.Screen;
Gdk.Rectangle geometry = GtkWorkarounds.GetUsableMonitorGeometry(screen, screen.GetMonitorAtPoint(caret.X, caret.Y));
// Add some spacing between the screen border and the popover window
geometry.Inflate(-5, -5);
// Flip the orientation if the window doesn't fit the screen.
int intPos = (int)position;
switch ((PopupPosition)(intPos & 0x0f))
{
case PopupPosition.Top:
if (caret.Bottom + request.Height > geometry.Bottom)
{
intPos = (intPos & 0xf0) | (int)PopupPosition.Bottom;
}
break;
case PopupPosition.Bottom:
if (caret.Top - request.Height < geometry.X)
{
intPos = (intPos & 0xf0) | (int)PopupPosition.Top;
}
break;
case PopupPosition.Right:
if (caret.X - request.Width < geometry.X)
{
intPos = (intPos & 0xf0) | (int)PopupPosition.Left;
}
break;
case PopupPosition.Left:
if (caret.Right + request.Width > geometry.Right)
{
intPos = (intPos & 0xf0) | (int)PopupPosition.Right;
}
break;
}
position = (PopupPosition)intPos;
UpdatePadding();
// Calculate base coordinate
switch ((PopupPosition)((int)position & 0x0f))
{
case PopupPosition.Top:
y = caret.Bottom;
break;
case PopupPosition.Bottom:
y = caret.Y - request.Height; break;
case PopupPosition.Right:
x = caret.X - request.Width; break;
case PopupPosition.Left:
x = caret.Right; break;
}
int offset;
if ((position & PopupPosition.Top) != 0 || (position & PopupPosition.Bottom) != 0)
{
if (((int)position & 0x10) != 0)
{
x = caret.X - MinArrowSpacing - Theme.ArrowWidth / 2;
}
else if (((int)position & 0x20) != 0)
{
x = caret.Right - request.Width + MinArrowSpacing + Theme.ArrowWidth / 2;
}
else
{
x = caret.X + (caret.Width - request.Width) / 2;
}
if (x < geometry.Left)
{
x = geometry.Left;
}
else if (x + request.Width > geometry.Right)
{
x = geometry.Right - request.Width;
}
offset = caret.X + caret.Width / 2 - x;
if (offset - Theme.ArrowWidth / 2 < MinArrowSpacing)
{
offset = MinArrowSpacing + Theme.ArrowWidth / 2;
}
if (offset > request.Width - MinArrowSpacing - Theme.ArrowWidth / 2)
{
offset = request.Width - MinArrowSpacing - Theme.ArrowWidth / 2;
}
}
else
{
if (((int)position & 0x10) != 0)
{
y = caret.Y - MinArrowSpacing - Theme.ArrowWidth / 2;
}
else if (((int)position & 0x20) != 0)
{
y = caret.Bottom - request.Height + MinArrowSpacing + Theme.ArrowWidth / 2;
}
else
{
y = caret.Y + (caret.Height - request.Height) / 2;
}
if (y < geometry.Top)
{
y = geometry.Top;
}
else if (y + request.Height > geometry.Bottom)
{
y = geometry.Bottom - request.Height;
}
if (MaximumYTopBound > 0)
{
y = Math.Max(MaximumYTopBound, y);
}
offset = caret.Y + caret.Height / 2 - y;
if (offset - Theme.ArrowWidth / 2 < MinArrowSpacing)
{
offset = MinArrowSpacing + Theme.ArrowWidth / 2;
}
if (offset > request.Height - MinArrowSpacing - Theme.ArrowWidth / 2)
{
offset = request.Height - MinArrowSpacing - Theme.ArrowWidth / 2;
}
}
Theme.ArrowOffset = offset;
this.position = position;
UpdatePadding();
Move(x, y);
Show();
if (!ShowWindowShadow)
{
DesktopService.RemoveWindowShadow(this);
}
}
