1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
//
// Copyright (C) 2009 Jason Smith
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using Cairo;
using Gdk;
using Docky.CairoHelper;
namespace Docky.Painters
{
public class AbstractDockPainter : IDisposable
{
DockySurface surface;
bool paint_needed;
public event EventHandler PaintNeeded;
public event EventHandler HideRequest;
public virtual bool SupportsVertical {
get { return false; }
}
public virtual int MinimumSize {
get { return 400; }
}
protected Gdk.Rectangle Allocation { get; private set; }
protected AbstractDockPainter ()
{
paint_needed = true;
}
public void SetAllocation (Gdk.Rectangle allocation)
{
if (allocation == Allocation)
return;
Allocation = allocation;
OnAllocationSet (allocation);
}
public DockySurface GetSurface (DockySurface similar)
{
if (surface == null || surface.Width != Allocation.Width || surface.Height != Allocation.Height) {
ResetBuffer ();
surface = new DockySurface (Allocation.Width, Allocation.Height, similar);
}
if (paint_needed) {
PaintSurface (surface);
paint_needed = false;
}
return surface;
}
protected virtual void PaintSurface (DockySurface surface)
{
}
public void Shown ()
{
OnShown ();
}
protected virtual void OnShown ()
{
}
public void Hidden ()
{
OnHidden ();
ResetBuffer ();
}
protected virtual void OnHidden ()
{
}
protected virtual void OnAllocationSet (Gdk.Rectangle allocation)
{
}
public void ButtonPressed (int x, int y, Gdk.ModifierType mod)
{
OnButtonPressed (x, y, mod);
}
protected virtual void OnButtonPressed (int x, int y, Gdk.ModifierType mod)
{
}
public void ButtonReleased (int x, int y, Gdk.ModifierType mod)
{
OnButtonReleased (x, y, mod);
}
protected virtual void OnButtonReleased (int x, int y, Gdk.ModifierType mod)
{
}
public void Scrolled (ScrollDirection direction, int x, int y, Gdk.ModifierType mod)
{
OnScrolled (direction, x, y, mod);
}
protected virtual void OnScrolled (ScrollDirection direction, int x, int y, Gdk.ModifierType type)
{
}
protected void Hide ()
{
if (HideRequest != null)
HideRequest (this, EventArgs.Empty);
}
protected void QueueRepaint ()
{
paint_needed = true;
if (PaintNeeded != null)
PaintNeeded (this, EventArgs.Empty);
}
void ResetBuffer ()
{
if (surface != null) {
surface.Dispose ();
surface = null;
}
}
#region IDisposable implementation
public void Dispose ()
{
ResetBuffer ();
}
#endregion
}
}
|