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
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
//
// System.Drawing.Drawing2D.GraphicsPathIterator.cs
//
// Author:
// Dennis Hayes (dennish@Raytek.com)
// Duncan Mak (duncan@ximian.com)
// Ravindra (rkumar@novell.com)
//
// Copyright (C) 2002/3 Ximian, Inc (http://www.ximian.com)
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// 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;
using System.Drawing;
namespace System.Drawing.Drawing2D
{
public sealed class GraphicsPathIterator : MarshalByRefObject, IDisposable
{
private IntPtr nativeObject = IntPtr.Zero;
// Constructors
internal GraphicsPathIterator (IntPtr native)
{
this.nativeObject = native;
}
public GraphicsPathIterator (GraphicsPath path)
{
Status status = GDIPlus.GdipCreatePathIter (out nativeObject, path.NativeObject);
GDIPlus.CheckStatus (status);
}
internal IntPtr NativeObject {
get {
return nativeObject;
}
set {
nativeObject = value;
}
}
// Public Properites
public int Count {
get {
int count;
Status status = GDIPlus.GdipPathIterGetCount (nativeObject, out count);
GDIPlus.CheckStatus (status);
return count;
}
}
public int SubpathCount {
get {
int count;
Status status = GDIPlus.GdipPathIterGetSubpathCount (nativeObject, out count);
GDIPlus.CheckStatus (status);
return count;
}
}
internal void Dispose (bool disposing)
{
Status status;
if (nativeObject != IntPtr.Zero) {
status = GDIPlus.GdipDeletePathIter (nativeObject);
GDIPlus.CheckStatus (status);
nativeObject = IntPtr.Zero;
}
}
// Public Methods.
public int CopyData (ref PointF [] points, ref byte [] types, int startIndex, int endIndex)
{
Status status;
int resultCount;
if (points.Length != types.Length)
throw new ArgumentException ("Invalid arguments passed. Both arrays should have the same length.");
status = GDIPlus.GdipPathIterCopyData (nativeObject, out resultCount, points, types, startIndex, endIndex);
GDIPlus.CheckStatus (status);
return resultCount;
}
public void Dispose ()
{
Dispose (true);
System.GC.SuppressFinalize (this);
}
~GraphicsPathIterator ()
{
Dispose (false);
}
public int Enumerate (ref PointF [] points, ref byte [] types)
{
Status status;
int resultCount;
int count = points.Length;
if (count != types.Length)
throw new ArgumentException ("Invalid arguments passed. Both arrays should have the same length.");
status = GDIPlus.GdipPathIterEnumerate (nativeObject, out resultCount, points, types, count);
GDIPlus.CheckStatus (status);
return resultCount;
}
public bool HasCurve ()
{
bool curve;
Status status = GDIPlus.GdipPathIterHasCurve (nativeObject, out curve);
GDIPlus.CheckStatus (status);
return curve;
}
public int NextMarker (GraphicsPath path)
{
Status status;
int resultCount;
status = GDIPlus.GdipPathIterNextMarkerPath (nativeObject, out resultCount, path.NativeObject);
GDIPlus.CheckStatus (status);
return resultCount;
}
public int NextMarker (out int startIndex, out int endIndex)
{
Status status;
int resultCount;
status = GDIPlus.GdipPathIterNextMarker (nativeObject, out resultCount, out startIndex, out endIndex);
GDIPlus.CheckStatus (status);
return resultCount;
}
public int NextPathType (out byte pathType, out int startIndex, out int endIndex)
{
Status status;
int resultCount;
status = GDIPlus.GdipPathIterNextPathType (nativeObject, out resultCount, out pathType, out startIndex, out endIndex);
GDIPlus.CheckStatus (status);
return resultCount;
}
public int NextSubpath (GraphicsPath path, out bool isClosed)
{
Status status;
int resultCount;
status = GDIPlus.GdipPathIterNextSubpathPath (nativeObject, out resultCount, path.NativeObject, out isClosed);
GDIPlus.CheckStatus (status);
return resultCount;
}
public int NextSubpath (out int startIndex, out int endIndex, out bool isClosed)
{
Status status;
int resultCount;
status = GDIPlus.GdipPathIterNextSubpath (nativeObject, out resultCount, out startIndex, out endIndex, out isClosed);
GDIPlus.CheckStatus (status);
return resultCount;
}
public void Rewind ()
{
Status status = GDIPlus.GdipPathIterRewind (nativeObject);
GDIPlus.CheckStatus (status);
}
}
}
|
