回答編集履歴

1

見直しキャンペーン中

2023/07/23 06:47

投稿

TN8001
TN8001

スコア9326

test CHANGED
@@ -1,321 +1,161 @@
1
1
  [C# - iTextSharpで,テーブルの線を点線にしたいです。(C#)|teratail](https://teratail.com/questions/292675)
2
-
3
2
  の使いまわしですが、上下左右別々に設定できて自由度が高いのでそのまま採用します。
4
3
 
5
-
6
-
7
4
  要は2回、線を引けばいいのです。
8
-
9
- ```C#
5
+ ```cs
10
-
11
6
  using System.IO;
12
-
13
7
  using iTextSharp.text;
14
-
15
8
  using iTextSharp.text.pdf;
16
9
 
17
-
18
-
19
10
  namespace Questions292675
20
-
21
11
  {
22
-
23
12
  internal class Program
24
-
25
13
  {
26
-
27
14
  private static void Main()
28
-
29
15
  {
30
-
31
16
  using(var doc = new Document(PageSize.A4))
32
-
33
17
  {
34
-
35
18
  PdfWriter.GetInstance(doc, new FileStream("BorderTest.pdf", FileMode.Create));
36
-
37
19
  doc.Open();
38
20
 
39
-
40
-
41
21
  var solid = new SolidLine(1); // 普通の
42
-
43
22
  var dotted = new DottedLine(1); // 点々
44
-
45
23
  var dashed = new DashedLine(1); // 破線
46
-
47
-
48
24
 
49
25
  var table = new PdfPTable(3);
50
26
 
51
-
52
-
53
27
  var cell = new PdfPCell(new Phrase("sample"))
54
-
55
28
  {
56
-
57
29
  HorizontalAlignment = 1,
58
-
59
30
  VerticalAlignment = 1,
60
31
 
61
-
62
-
63
32
  Border = 0, // 通常のボーダーは引かない
64
-
65
33
  // 独自セルレンダラーを追加し描画 左,右,上,下
66
-
67
34
  CellEvent = new CustomBorder2(solid, solid, solid, solid),
68
-
69
35
  Padding = 5, // 内側に2本目が来るので適当に開ける
70
-
71
36
  PaddingBottom = 10,
72
-
73
37
  };
74
38
 
75
-
76
-
77
39
  table.AddCell(cell);
78
-
79
40
  table.AddCell(cell);
80
-
81
41
  table.AddCell(cell);
82
-
83
42
  doc.Add(table);
84
-
85
43
  }
86
44
 
45
+ System.Diagnostics.Process.Start("BorderTest.pdf");
46
+ }
47
+ }
87
48
 
49
+ internal interface ILineDash
50
+ {
51
+ void ApplyLineDash(PdfContentByte canvas);
52
+ }
88
53
 
89
- System.Diagnostics.Process.Start("BorderTest.pdf");
54
+ internal abstract class AbstractLineDash : ILineDash
55
+ {
56
+ private float lineWidth;
57
+ public AbstractLineDash(float lineWidth) => this.lineWidth = lineWidth;
58
+ public virtual void ApplyLineDash(PdfContentByte canvas) => canvas.SetLineWidth(lineWidth);
59
+ }
90
60
 
61
+ internal class SolidLine : AbstractLineDash
62
+ {
63
+ public SolidLine(float lineWidth) : base(lineWidth) { }
64
+ }
65
+
66
+ internal class DottedLine : AbstractLineDash
67
+ {
68
+ public DottedLine(float lineWidth) : base(lineWidth) { }
69
+ public override void ApplyLineDash(PdfContentByte canvas)
70
+ {
71
+ base.ApplyLineDash(canvas);
72
+ canvas.SetLineCap(PdfContentByte.LINE_CAP_ROUND);
73
+ canvas.SetLineDash(0, 4, 2);
74
+ }
75
+ }
76
+
77
+ internal class DashedLine : AbstractLineDash
78
+ {
79
+ public DashedLine(float lineWidth) : base(lineWidth) { }
80
+ public override void ApplyLineDash(PdfContentByte canvas)
81
+ {
82
+ base.ApplyLineDash(canvas);
83
+ canvas.SetLineDash(3, 3);
84
+ }
85
+ }
86
+
87
+ internal class CustomBorder2 : IPdfPCellEvent
88
+ {
89
+ protected ILineDash left;
90
+ protected ILineDash right;
91
+ protected ILineDash top;
92
+ protected ILineDash bottom;
93
+
94
+ private int offset = 5; // 線の間隔
95
+ public CustomBorder2(ILineDash left, ILineDash right, ILineDash top, ILineDash bottom)
96
+ {
97
+ this.left = left;
98
+ this.right = right;
99
+ this.top = top;
100
+ this.bottom = bottom;
91
101
  }
92
102
 
103
+ public void CellLayout(PdfPCell cell, Rectangle position, PdfContentByte[] canvases)
104
+ {
105
+ // position.Top > position.Bottom になっていたので直観とは逆のオフセットになっている
106
+ // (左下が0の座標系?常にそうなのかは調べていない)
107
+ var canvas = canvases[PdfPTable.LINECANVAS];
108
+ if(top != null) // 上の線
109
+ {
110
+ canvas.SaveState();
111
+ top.ApplyLineDash(canvas);
112
+ canvas.MoveTo(position.Right, position.Top);
113
+ canvas.LineTo(position.Left, position.Top);
114
+ canvas.Stroke();
115
+ canvas.MoveTo(position.Right - offset, position.Top - offset);
116
+ canvas.LineTo(position.Left + offset, position.Top - offset);
117
+ canvas.Stroke();
118
+ canvas.RestoreState();
119
+ }
120
+ if(bottom != null) // 下の線
121
+ {
122
+ canvas.SaveState();
123
+ bottom.ApplyLineDash(canvas);
124
+ canvas.MoveTo(position.Right, position.Bottom);
125
+ canvas.LineTo(position.Left, position.Bottom);
126
+ canvas.Stroke();
127
+ canvas.MoveTo(position.Right - offset, position.Bottom + offset);
128
+ canvas.LineTo(position.Left + offset, position.Bottom + offset);
129
+ canvas.Stroke();
130
+ canvas.RestoreState();
131
+ }
132
+ if(right != null) // 右の線
133
+ {
134
+ canvas.SaveState();
135
+ right.ApplyLineDash(canvas);
136
+ canvas.MoveTo(position.Right, position.Top);
137
+ canvas.LineTo(position.Right, position.Bottom);
138
+ canvas.Stroke();
139
+ canvas.MoveTo(position.Right - offset, position.Top - offset);
140
+ canvas.LineTo(position.Right - offset, position.Bottom + offset);
141
+ canvas.Stroke();
142
+ canvas.RestoreState();
143
+ }
144
+ if(left != null) // 左の線
145
+ {
146
+ canvas.SaveState();
147
+ left.ApplyLineDash(canvas);
148
+ canvas.MoveTo(position.Left, position.Top);
149
+ canvas.LineTo(position.Left, position.Bottom);
150
+ canvas.Stroke();
151
+ canvas.MoveTo(position.Left + offset, position.Top - offset);
152
+ canvas.LineTo(position.Left + offset, position.Bottom + offset);
153
+ canvas.Stroke();
154
+ canvas.RestoreState();
155
+ }
156
+ }
93
157
  }
94
-
95
-
96
-
97
- internal interface ILineDash
98
-
99
- {
100
-
101
- void ApplyLineDash(PdfContentByte canvas);
102
-
103
- }
104
-
105
-
106
-
107
- internal abstract class AbstractLineDash : ILineDash
108
-
109
- {
110
-
111
- private float lineWidth;
112
-
113
- public AbstractLineDash(float lineWidth) => this.lineWidth = lineWidth;
114
-
115
- public virtual void ApplyLineDash(PdfContentByte canvas) => canvas.SetLineWidth(lineWidth);
116
-
117
- }
118
-
119
-
120
-
121
- internal class SolidLine : AbstractLineDash
122
-
123
- {
124
-
125
- public SolidLine(float lineWidth) : base(lineWidth) { }
126
-
127
- }
128
-
129
-
130
-
131
- internal class DottedLine : AbstractLineDash
132
-
133
- {
134
-
135
- public DottedLine(float lineWidth) : base(lineWidth) { }
136
-
137
- public override void ApplyLineDash(PdfContentByte canvas)
138
-
139
- {
140
-
141
- base.ApplyLineDash(canvas);
142
-
143
- canvas.SetLineCap(PdfContentByte.LINE_CAP_ROUND);
144
-
145
- canvas.SetLineDash(0, 4, 2);
146
-
147
- }
148
-
149
- }
150
-
151
-
152
-
153
- internal class DashedLine : AbstractLineDash
154
-
155
- {
156
-
157
- public DashedLine(float lineWidth) : base(lineWidth) { }
158
-
159
- public override void ApplyLineDash(PdfContentByte canvas)
160
-
161
- {
162
-
163
- base.ApplyLineDash(canvas);
164
-
165
- canvas.SetLineDash(3, 3);
166
-
167
- }
168
-
169
- }
170
-
171
-
172
-
173
- internal class CustomBorder2 : IPdfPCellEvent
174
-
175
- {
176
-
177
- protected ILineDash left;
178
-
179
- protected ILineDash right;
180
-
181
- protected ILineDash top;
182
-
183
- protected ILineDash bottom;
184
-
185
-
186
-
187
- private int offset = 5; // 線の間隔
188
-
189
- public CustomBorder2(ILineDash left, ILineDash right, ILineDash top, ILineDash bottom)
190
-
191
- {
192
-
193
- this.left = left;
194
-
195
- this.right = right;
196
-
197
- this.top = top;
198
-
199
- this.bottom = bottom;
200
-
201
- }
202
-
203
-
204
-
205
- public void CellLayout(PdfPCell cell, Rectangle position, PdfContentByte[] canvases)
206
-
207
- {
208
-
209
- // position.Top > position.Bottom になっていたので直観とは逆のオフセットになっている
210
-
211
- // (左下が0の座標系?常にそうなのかは調べていない)
212
-
213
- var canvas = canvases[PdfPTable.LINECANVAS];
214
-
215
- if(top != null) // 上の線
216
-
217
- {
218
-
219
- canvas.SaveState();
220
-
221
- top.ApplyLineDash(canvas);
222
-
223
- canvas.MoveTo(position.Right, position.Top);
224
-
225
- canvas.LineTo(position.Left, position.Top);
226
-
227
- canvas.Stroke();
228
-
229
- canvas.MoveTo(position.Right - offset, position.Top - offset);
230
-
231
- canvas.LineTo(position.Left + offset, position.Top - offset);
232
-
233
- canvas.Stroke();
234
-
235
- canvas.RestoreState();
236
-
237
- }
238
-
239
- if(bottom != null) // 下の線
240
-
241
- {
242
-
243
- canvas.SaveState();
244
-
245
- bottom.ApplyLineDash(canvas);
246
-
247
- canvas.MoveTo(position.Right, position.Bottom);
248
-
249
- canvas.LineTo(position.Left, position.Bottom);
250
-
251
- canvas.Stroke();
252
-
253
- canvas.MoveTo(position.Right - offset, position.Bottom + offset);
254
-
255
- canvas.LineTo(position.Left + offset, position.Bottom + offset);
256
-
257
- canvas.Stroke();
258
-
259
- canvas.RestoreState();
260
-
261
- }
262
-
263
- if(right != null) // 右の線
264
-
265
- {
266
-
267
- canvas.SaveState();
268
-
269
- right.ApplyLineDash(canvas);
270
-
271
- canvas.MoveTo(position.Right, position.Top);
272
-
273
- canvas.LineTo(position.Right, position.Bottom);
274
-
275
- canvas.Stroke();
276
-
277
- canvas.MoveTo(position.Right - offset, position.Top - offset);
278
-
279
- canvas.LineTo(position.Right - offset, position.Bottom + offset);
280
-
281
- canvas.Stroke();
282
-
283
- canvas.RestoreState();
284
-
285
- }
286
-
287
- if(left != null) // 左の線
288
-
289
- {
290
-
291
- canvas.SaveState();
292
-
293
- left.ApplyLineDash(canvas);
294
-
295
- canvas.MoveTo(position.Left, position.Top);
296
-
297
- canvas.LineTo(position.Left, position.Bottom);
298
-
299
- canvas.Stroke();
300
-
301
- canvas.MoveTo(position.Left + offset, position.Top - offset);
302
-
303
- canvas.LineTo(position.Left + offset, position.Bottom + offset);
304
-
305
- canvas.Stroke();
306
-
307
- canvas.RestoreState();
308
-
309
- }
310
-
311
- }
312
-
313
- }
314
-
315
158
  }
316
-
317
159
  ```
318
160
 
319
-
320
-
321
161
  ![pdf画像](d1a1441e1ab0f5f243de4c06acfdd11d.png)