1 | using System;
|
---|
2 | using System.ComponentModel;
|
---|
3 | using System.Drawing;
|
---|
4 | using ToolBox.Formatting;
|
---|
5 |
|
---|
6 | namespace Netron.Diagramming.Core {
|
---|
7 | // ----------------------------------------------------------------------
|
---|
8 | /// <summary>
|
---|
9 | /// Specifies formatting for text to be drawn (such as color, alignment,
|
---|
10 | /// font size, etc.). The event 'TextStyleChanged' is raised when a
|
---|
11 | /// property is changed.
|
---|
12 | /// </summary>
|
---|
13 | // ----------------------------------------------------------------------
|
---|
14 | public partial class TextStyle : ITextStyle {
|
---|
15 | // ------------------------------------------------------------------
|
---|
16 | /// <summary>
|
---|
17 | /// Event raised when this TextStyle is changed.
|
---|
18 | /// </summary>
|
---|
19 | // ------------------------------------------------------------------
|
---|
20 | [field: NonSerialized()]
|
---|
21 | public event TextStyleChangedEventHandler TextStyleChanged;
|
---|
22 |
|
---|
23 | // ------------------------------------------------------------------
|
---|
24 | /// <summary>
|
---|
25 | /// Implementation of IVersion - the current version of
|
---|
26 | /// TextStyle.
|
---|
27 | /// </summary>
|
---|
28 | // ------------------------------------------------------------------
|
---|
29 | protected const double textStyleVersion = 1.0;
|
---|
30 |
|
---|
31 | // ------------------------------------------------------------------
|
---|
32 | /// <summary>
|
---|
33 | /// Specifies the number of decimal places to use when a TextFormat
|
---|
34 | /// other than 'String' is specified.
|
---|
35 | /// </summary>
|
---|
36 | // ------------------------------------------------------------------
|
---|
37 | protected int mDecimalPlaces = 2;
|
---|
38 |
|
---|
39 | // ------------------------------------------------------------------
|
---|
40 | /// <summary>
|
---|
41 | /// The formatting to apply to the text.
|
---|
42 | /// </summary>
|
---|
43 | // ------------------------------------------------------------------
|
---|
44 | protected TextFormat mTextFormat = TextFormat.String;
|
---|
45 |
|
---|
46 | // ------------------------------------------------------------------
|
---|
47 | /// <summary>
|
---|
48 | /// The font.
|
---|
49 | /// </summary>
|
---|
50 | // ------------------------------------------------------------------
|
---|
51 | protected Font mFont = new Font("Arial", 10);
|
---|
52 |
|
---|
53 | // ------------------------------------------------------------------
|
---|
54 | /// <summary>
|
---|
55 | /// The fontstyle to use (regular, bold, italics, etc.).
|
---|
56 | /// </summary>
|
---|
57 | // ------------------------------------------------------------------
|
---|
58 | protected FontStyle mFontStyle = FontStyle.Regular;
|
---|
59 |
|
---|
60 | // ------------------------------------------------------------------
|
---|
61 | /// <summary>
|
---|
62 | /// The color for the text;
|
---|
63 | /// </summary>
|
---|
64 | // ------------------------------------------------------------------
|
---|
65 | protected Color mFontColor = Color.Black;
|
---|
66 |
|
---|
67 | // ------------------------------------------------------------------
|
---|
68 | /// <summary>
|
---|
69 | /// The horizontal alignment of the text.
|
---|
70 | /// </summary>
|
---|
71 | // ------------------------------------------------------------------
|
---|
72 | protected StringAlignment mHorizontalAlignment =
|
---|
73 | StringAlignment.Center;
|
---|
74 |
|
---|
75 | // ------------------------------------------------------------------
|
---|
76 | /// <summary>
|
---|
77 | /// The vertical alignment of the text.
|
---|
78 | /// </summary>
|
---|
79 | // ------------------------------------------------------------------
|
---|
80 | protected StringAlignment mVerticalAlignment =
|
---|
81 | StringAlignment.Center;
|
---|
82 |
|
---|
83 | // ------------------------------------------------------------------
|
---|
84 | /// <summary>
|
---|
85 | /// Specifies if the font is bold.
|
---|
86 | /// </summary>
|
---|
87 | // ------------------------------------------------------------------
|
---|
88 | protected bool mIsBold = false;
|
---|
89 |
|
---|
90 | // ------------------------------------------------------------------
|
---|
91 | /// <summary>
|
---|
92 | /// Specifies if the font is italic.
|
---|
93 | /// </summary>
|
---|
94 | // ------------------------------------------------------------------
|
---|
95 | protected bool mIsItalic = false;
|
---|
96 |
|
---|
97 | // ------------------------------------------------------------------
|
---|
98 | /// <summary>
|
---|
99 | /// Specifies if the font is underlined.
|
---|
100 | /// </summary>
|
---|
101 | // ------------------------------------------------------------------
|
---|
102 | protected bool mIsUnderline = false;
|
---|
103 |
|
---|
104 | #region ITextStyle Members
|
---|
105 |
|
---|
106 | // ------------------------------------------------------------------
|
---|
107 | /// <summary>
|
---|
108 | /// Gets the current version.
|
---|
109 | /// </summary>
|
---|
110 | // ------------------------------------------------------------------
|
---|
111 | public virtual double Version {
|
---|
112 | get {
|
---|
113 | return textStyleVersion;
|
---|
114 | }
|
---|
115 | }
|
---|
116 |
|
---|
117 | // ------------------------------------------------------------------
|
---|
118 | /// <summary>
|
---|
119 | /// Gets or sets the number of decimal places to use when a TextFormat
|
---|
120 | /// other than 'String' is specified.
|
---|
121 | /// </summary>
|
---|
122 | // ------------------------------------------------------------------
|
---|
123 | public virtual int DecimalPlaces {
|
---|
124 | get {
|
---|
125 | return mDecimalPlaces;
|
---|
126 | }
|
---|
127 | set {
|
---|
128 | mDecimalPlaces = value;
|
---|
129 | RaiseTextStyleChanged();
|
---|
130 | }
|
---|
131 | }
|
---|
132 |
|
---|
133 | // ------------------------------------------------------------------
|
---|
134 | /// <summary>
|
---|
135 | /// Gets or sets the formatting to apply to the text.
|
---|
136 | /// </summary>
|
---|
137 | // ------------------------------------------------------------------
|
---|
138 | public virtual TextFormat TextFormat {
|
---|
139 | get {
|
---|
140 | return mTextFormat;
|
---|
141 | }
|
---|
142 | set {
|
---|
143 | mTextFormat = value;
|
---|
144 | RaiseTextStyleChanged();
|
---|
145 | }
|
---|
146 | }
|
---|
147 |
|
---|
148 | // ------------------------------------------------------------------
|
---|
149 | /// <summary>
|
---|
150 | /// Gets or sets the text's font.
|
---|
151 | /// </summary>
|
---|
152 | // ------------------------------------------------------------------
|
---|
153 | public virtual Font Font {
|
---|
154 | get {
|
---|
155 | return this.mFont;
|
---|
156 | }
|
---|
157 | set {
|
---|
158 | this.mFont = value;
|
---|
159 | RaiseTextStyleChanged();
|
---|
160 | }
|
---|
161 | }
|
---|
162 |
|
---|
163 | // ------------------------------------------------------------------
|
---|
164 | /// <summary>
|
---|
165 | /// Gets or sets the text's font size.
|
---|
166 | /// </summary>
|
---|
167 | // ------------------------------------------------------------------
|
---|
168 | public virtual float FontSize {
|
---|
169 | get {
|
---|
170 | return this.mFont.Size;
|
---|
171 | }
|
---|
172 | set {
|
---|
173 | this.mFont = new Font(
|
---|
174 | mFont.FontFamily,
|
---|
175 | value,
|
---|
176 | mFont.Style);
|
---|
177 | RaiseTextStyleChanged();
|
---|
178 | }
|
---|
179 | }
|
---|
180 |
|
---|
181 | // ------------------------------------------------------------------
|
---|
182 | /// <summary>
|
---|
183 | /// Gets or sets the text's color.
|
---|
184 | /// </summary>
|
---|
185 | // ------------------------------------------------------------------
|
---|
186 | public virtual Color FontColor {
|
---|
187 | get {
|
---|
188 | return mFontColor;
|
---|
189 | }
|
---|
190 | set {
|
---|
191 | mFontColor = value;
|
---|
192 | RaiseTextStyleChanged();
|
---|
193 | }
|
---|
194 | }
|
---|
195 |
|
---|
196 | // ------------------------------------------------------------------
|
---|
197 | /// <summary>
|
---|
198 | /// Gets or sets if the text is underlined.
|
---|
199 | /// </summary>
|
---|
200 | // ------------------------------------------------------------------
|
---|
201 | public virtual bool IsUnderlined {
|
---|
202 | get {
|
---|
203 | return mFont.Underline;
|
---|
204 | }
|
---|
205 | set {
|
---|
206 | mIsUnderline = value;
|
---|
207 | SetFontStyle();
|
---|
208 | RaiseTextStyleChanged();
|
---|
209 | }
|
---|
210 | }
|
---|
211 |
|
---|
212 | // ------------------------------------------------------------------
|
---|
213 | /// <summary>
|
---|
214 | /// Gets or sets if the text is bold.
|
---|
215 | /// </summary>
|
---|
216 | // ------------------------------------------------------------------
|
---|
217 | public virtual bool IsBold {
|
---|
218 | get {
|
---|
219 | return mFont.Bold;
|
---|
220 | }
|
---|
221 | set {
|
---|
222 | mIsBold = value;
|
---|
223 | SetFontStyle();
|
---|
224 | RaiseTextStyleChanged();
|
---|
225 | }
|
---|
226 | }
|
---|
227 |
|
---|
228 | // ------------------------------------------------------------------
|
---|
229 | /// <summary>
|
---|
230 | /// Gets or sets if the text is italic.
|
---|
231 | /// </summary>
|
---|
232 | // ------------------------------------------------------------------
|
---|
233 | public virtual bool IsItalic {
|
---|
234 | get {
|
---|
235 | return mFont.Italic;
|
---|
236 | }
|
---|
237 | set {
|
---|
238 | mIsItalic = value;
|
---|
239 | SetFontStyle();
|
---|
240 | RaiseTextStyleChanged();
|
---|
241 | }
|
---|
242 | }
|
---|
243 |
|
---|
244 | // ------------------------------------------------------------------
|
---|
245 | /// <summary>
|
---|
246 | /// Gets or sets the horizontal alignment of the text.
|
---|
247 | /// </summary>
|
---|
248 | // ------------------------------------------------------------------
|
---|
249 | [Browsable(true),
|
---|
250 | Description("The horizontal alignment of the text."),
|
---|
251 | Category("Layout")]
|
---|
252 | public virtual StringAlignment HorizontalAlignment {
|
---|
253 | get {
|
---|
254 | return mHorizontalAlignment;
|
---|
255 | }
|
---|
256 | set {
|
---|
257 | mHorizontalAlignment = value;
|
---|
258 | RaiseTextStyleChanged();
|
---|
259 | }
|
---|
260 | }
|
---|
261 |
|
---|
262 | // ------------------------------------------------------------------
|
---|
263 | /// <summary>
|
---|
264 | /// Gets or sets the vertical alignment of the text.
|
---|
265 | /// </summary>
|
---|
266 | // ------------------------------------------------------------------
|
---|
267 | [Browsable(true),
|
---|
268 | Description("The vertical alignment of the text."),
|
---|
269 | Category("Layout")]
|
---|
270 | public virtual StringAlignment VerticalAlignment {
|
---|
271 | get {
|
---|
272 | return mVerticalAlignment;
|
---|
273 | }
|
---|
274 | set {
|
---|
275 | mVerticalAlignment = value;
|
---|
276 | RaiseTextStyleChanged();
|
---|
277 | }
|
---|
278 | }
|
---|
279 |
|
---|
280 | // ------------------------------------------------------------------
|
---|
281 | /// <summary>
|
---|
282 | /// Gets the format of the string.
|
---|
283 | /// </summary>
|
---|
284 | // ------------------------------------------------------------------
|
---|
285 | public virtual StringFormat StringFormat {
|
---|
286 | get {
|
---|
287 | StringFormat format = new StringFormat();
|
---|
288 | format.Alignment = this.VerticalAlignment;
|
---|
289 | format.LineAlignment = this.HorizontalAlignment;
|
---|
290 | return format;
|
---|
291 | }
|
---|
292 | }
|
---|
293 |
|
---|
294 | #endregion
|
---|
295 |
|
---|
296 | #region Constructors
|
---|
297 |
|
---|
298 | // ------------------------------------------------------------------
|
---|
299 | /// <summary>
|
---|
300 | /// Default constructor.
|
---|
301 | /// </summary>
|
---|
302 | // ------------------------------------------------------------------
|
---|
303 | public TextStyle() {
|
---|
304 | }
|
---|
305 |
|
---|
306 | // ------------------------------------------------------------------
|
---|
307 | /// <summary>
|
---|
308 | /// Constructor that receives the color of the font.
|
---|
309 | /// </summary>
|
---|
310 | /// <param name="color">Color</param>
|
---|
311 | // ------------------------------------------------------------------
|
---|
312 | public TextStyle(Color color) {
|
---|
313 | mFontColor = color;
|
---|
314 | }
|
---|
315 |
|
---|
316 | // ------------------------------------------------------------------
|
---|
317 | /// <summary>
|
---|
318 | /// Constructor that receives the font color, font, horizontal
|
---|
319 | /// alignment, and vertical alignment.
|
---|
320 | /// </summary>
|
---|
321 | /// <param name="color">Color</param>
|
---|
322 | /// <param name="font">Font</param>
|
---|
323 | /// <param name="horizontalAlignment">StringAlignment</param>
|
---|
324 | /// <param name="verticalAlignment">StringAlignment</param>
|
---|
325 | // ------------------------------------------------------------------
|
---|
326 | public TextStyle(
|
---|
327 | Color color,
|
---|
328 | Font font,
|
---|
329 | StringAlignment horizontalAlignment,
|
---|
330 | StringAlignment verticalAlignment) {
|
---|
331 | mFontColor = color;
|
---|
332 | mFont = font;
|
---|
333 | mHorizontalAlignment = horizontalAlignment;
|
---|
334 | mVerticalAlignment = verticalAlignment;
|
---|
335 | }
|
---|
336 |
|
---|
337 | #endregion
|
---|
338 |
|
---|
339 | // ------------------------------------------------------------------
|
---|
340 | /// <summary>
|
---|
341 | /// Creates a new font style using the current IsBold, IsItalic,
|
---|
342 | /// and IsUnderline properties.
|
---|
343 | /// </summary>
|
---|
344 | // ------------------------------------------------------------------
|
---|
345 | protected virtual void SetFontStyle() {
|
---|
346 | FontStyle style = FontStyle.Regular;
|
---|
347 |
|
---|
348 | if (mIsBold) {
|
---|
349 | style = style | FontStyle.Bold;
|
---|
350 | }
|
---|
351 |
|
---|
352 | if (mIsItalic) {
|
---|
353 | style = style | FontStyle.Italic;
|
---|
354 | }
|
---|
355 |
|
---|
356 | if (mIsUnderline) {
|
---|
357 | style = style | FontStyle.Underline;
|
---|
358 | }
|
---|
359 |
|
---|
360 | this.mFont = new Font(mFont, style);
|
---|
361 | }
|
---|
362 |
|
---|
363 | // ------------------------------------------------------------------
|
---|
364 | /// <summary>
|
---|
365 | /// Gets the brush that's used to draw our text to a GDI+ graphics
|
---|
366 | /// surface.
|
---|
367 | /// </summary>
|
---|
368 | /// <returns>Brush</returns>
|
---|
369 | // ------------------------------------------------------------------
|
---|
370 | public virtual Brush GetBrush() {
|
---|
371 | return new SolidBrush(mFontColor);
|
---|
372 | }
|
---|
373 |
|
---|
374 | // ------------------------------------------------------------------
|
---|
375 | /// <summary>
|
---|
376 | /// Applies the formatting specified by TextFormatting to the text
|
---|
377 | /// specified.
|
---|
378 | /// </summary>
|
---|
379 | /// <param name="text">string: The un-formatted text.</param>
|
---|
380 | /// <returns>string: The formatted text.</returns>
|
---|
381 | // ------------------------------------------------------------------
|
---|
382 | public virtual string GetFormattedText(string text) {
|
---|
383 | return TextFormatter.Format(
|
---|
384 | mTextFormat,
|
---|
385 | text,
|
---|
386 | mDecimalPlaces);
|
---|
387 | }
|
---|
388 |
|
---|
389 | // ------------------------------------------------------------------
|
---|
390 | /// <summary>
|
---|
391 | /// Raises the TextStyleChanged event.
|
---|
392 | /// </summary>
|
---|
393 | // ------------------------------------------------------------------
|
---|
394 | protected virtual void RaiseTextStyleChanged() {
|
---|
395 | if (this.TextStyleChanged != null) {
|
---|
396 | // Raise the event
|
---|
397 | this.TextStyleChanged(
|
---|
398 | this,
|
---|
399 | new TextStyleChangedEventArgs(this));
|
---|
400 | }
|
---|
401 | }
|
---|
402 | }
|
---|
403 | }
|
---|