← Back to branch summary

~ubuntu-branches/ubuntu/trusty/monodevelop/trusty-proposed

« back to all changes in this revision

Viewing changes to external/xwt/Xwt.Gtk/Xwt.GtkBackend/TextLayoutBackendHandler.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

Show diffs side-by-side

added added

removed removed

Lines of Context:
external/xwt/Xwt.Gtk/Xwt.GtkBackend/TextLayoutBackendHandler.cs
 
1
// 
 
2
// TextLayoutBackendHandler.cs
 
3
//  
 
4
// Author:
 
5
//       Lluis Sanchez <lluis@xamarin.com>
 
6
//       Lytico (http://limada.sourceforge.net)
 
7
// 
 
8
// Copyright (c) 2011 Xamarin Inc
 
9
// 
 
10
// Permission is hereby granted, free of charge, to any person obtaining a copy
 
11
// of this software and associated documentation files (the "Software"), to deal
 
12
// in the Software without restriction, including without limitation the rights
 
13
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 
14
// copies of the Software, and to permit persons to whom the Software is
 
15
// furnished to do so, subject to the following conditions:
 
16
// 
 
17
// The above copyright notice and this permission notice shall be included in
 
18
// all copies or substantial portions of the Software.
 
19
// 
 
20
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 
21
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 
22
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 
23
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 
24
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 
25
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 
26
// THE SOFTWARE.
 
27
 
 
28
using System;
 
29
using Xwt.Backends;
 
30
using Xwt.Drawing;
 
31
using Xwt.Engine;
 
32
using Xwt.CairoBackend;
 
33
 
 
34
namespace Xwt.GtkBackend
 
35
{
 
36
        public class TextLayoutBackendHandler: ITextLayoutBackendHandler
 
37
        {
 
38
                static Cairo.Context SharedContext;
 
39
                
 
40
                public double Heigth = -1;
 
41
                
 
42
                static TextLayoutBackendHandler ()
 
43
                {
 
44
                        Cairo.Surface sf = new Cairo.ImageSurface (Cairo.Format.ARGB32, 1, 1);
 
45
                        SharedContext = new Cairo.Context (sf);
 
46
                }
 
47
                
 
48
                public object Create (Context context)
 
49
                {
 
50
                        CairoContextBackend c = (CairoContextBackend) WidgetRegistry.GetBackend (context);
 
51
                        return Pango.CairoHelper.CreateLayout (c.Context);
 
52
                }
 
53
                
 
54
                public object Create (ICanvasBackend canvas)
 
55
                {
 
56
                        return Pango.CairoHelper.CreateLayout (SharedContext);
 
57
                }
 
58
 
 
59
                public void SetText (object backend, string text)
 
60
                {
 
61
                        Pango.Layout tl = (Pango.Layout) backend;
 
62
                        tl.SetText (text);
 
63
                }
 
64
 
 
65
                public void SetFont (object backend, Xwt.Drawing.Font font)
 
66
                {
 
67
                        Pango.Layout tl = (Pango.Layout)backend;
 
68
                        tl.FontDescription = (Pango.FontDescription)WidgetRegistry.GetBackend (font);
 
69
                }
 
70
                
 
71
                public void SetWidth (object backend, double value)
 
72
                {
 
73
                        Pango.Layout tl = (Pango.Layout)backend;
 
74
                        tl.Width = (int) (value * Pango.Scale.PangoScale);
 
75
                }
 
76
                
 
77
                public void SetHeight (object backend, double value)
 
78
                {
 
79
                        this.Heigth = value;
 
80
                }
 
81
                
 
82
                public void SetTrimming (object backend, TextTrimming textTrimming)
 
83
                {
 
84
                        Pango.Layout tl = (Pango.Layout)backend;
 
85
                        if (textTrimming == TextTrimming.WordElipsis)
 
86
                                tl.Ellipsize = Pango.EllipsizeMode.End;
 
87
                        if (textTrimming == TextTrimming.Word)
 
88
                                tl.Ellipsize = Pango.EllipsizeMode.None;
 
89
                        
 
90
                }
 
91
                
 
92
                public Size GetSize (object backend)
 
93
                {
 
94
                        Pango.Layout tl = (Pango.Layout) backend;
 
95
                        int w, h;
 
96
                        tl.GetPixelSize (out w, out h);
 
97
                        return new Size ((double)w, (double)h);
 
98
                }
 
99
        }
 
100
}
 
101