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//
// TooltipProvider.cs
//
// Author:
// Lluis Sanchez <lluis@xamarin.com>
//
// Copyright (c) 2012 Xamarin Inc
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
namespace Mono.TextEditor
{
public abstract class TooltipProvider
{
public abstract TooltipItem GetItem (TextEditor editor, int offset);
public virtual bool IsInteractive (TextEditor editor, Gtk.Window tipWindow)
{
return false;
}
protected virtual void GetRequiredPosition (TextEditor editor, Gtk.Window tipWindow, out int requiredWidth, out double xalign)
{
requiredWidth = tipWindow.SizeRequest ().Width;
xalign = 0.5;
}
protected virtual Gtk.Window CreateTooltipWindow (TextEditor editor, int offset, Gdk.ModifierType modifierState, TooltipItem item)
{
return null;
}
public virtual Gtk.Window ShowTooltipWindow (TextEditor editor, int offset, Gdk.ModifierType modifierState, int mouseX, int mouseY, TooltipItem item)
{
Gtk.Window tipWindow = CreateTooltipWindow (editor, offset, modifierState, item);
if (tipWindow == null)
return null;
int ox = 0, oy = 0;
if (editor.GdkWindow != null)
editor.GdkWindow.GetOrigin (out ox, out oy);
int w;
double xalign;
GetRequiredPosition (editor, tipWindow, out w, out xalign);
w += 10;
int x = mouseX + ox + editor.Allocation.X;
int y = mouseY + oy + editor.Allocation.Y;
Gdk.Rectangle geometry = editor.Screen.GetUsableMonitorGeometry (editor.Screen.GetMonitorAtPoint (x, y));
x -= (int) ((double) w * xalign);
y += 10;
if (x + w >= geometry.X + geometry.Width)
x = geometry.X + geometry.Width - w;
if (x < geometry.Left)
x = geometry.Left;
int h = tipWindow.SizeRequest ().Height;
if (y + h >= geometry.Y + geometry.Height)
y = geometry.Y + geometry.Height - h;
if (y < geometry.Top)
y = geometry.Top;
tipWindow.Move (x, y);
tipWindow.ShowAll ();
return tipWindow;
}
}
}
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