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Viewing changes to src/core/Mono.Texteditor/Mono.TextEditor/Gui/TooltipProvider.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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