GG: TextControl.h Source File

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TextControl.h
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1 // -*- C++ -*-
2 /* GG is a GUI for SDL and OpenGL.
3 Copyright (C) 2003-2008 T. Zachary Laine
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public License
7 as published by the Free Software Foundation; either version 2.1
8 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA
19
20 If you do not wish to comply with the terms of the LGPL please
21 contact the author as other terms are available for a fee.
22
23 Zach Laine
24 whatwasthataddress@gmail.com */
25
29 #ifndef _GG_TextControl_h_
30 #define _GG_TextControl_h_
31
32 #include <GG/ClrConstants.h>
33 #include <GG/Control.h>
34 #include <GG/Font.h>
35
36 #include <boost/lexical_cast.hpp>
37
38
39 namespace GG {
40
65 class GG_API TextControl : public Control
66 {
67 public:
68 using Wnd::SetMinSize;
69
71
72 TextControl(X x, Y y, X w, Y h, const std::string& str, const boost::shared_ptr<Font>& font,
73 Clr color = CLR_BLACK, Flags<TextFormat> format = FORMAT_NONE,
74 Flags<WndFlag> flags = Flags<WndFlag>());
75
80 TextControl(X x, Y y, const std::string& str, const boost::shared_ptr<Font>& font,
81 Clr color = CLR_BLACK, Flags<TextFormat> format = FORMAT_NONE,
82 Flags<WndFlag> flags = Flags<WndFlag>());
84
86 virtual Pt MinUsableSize() const;
87
89 const std::string& Text() const;
90
93 Flags<TextFormat> GetTextFormat() const;
94
97 Clr TextColor() const;
98
101 bool ClipText() const;
102
110 bool SetMinSize() const;
111
125 template <class T> void operator>>(T& t) const;
126
139 template <class T> T GetValue() const;
140
143 operator const std::string&() const;
144
145 bool Empty() const;
146 CPSize Length() const;
147
150 Pt TextUpperLeft() const;
151
154 Pt TextLowerRight() const;
156
158 virtual void Render();
159
164 virtual void SetText(const std::string& str);
165
166 virtual void SizeMove(const Pt& ul, const Pt& lr);
167
169 void SetTextFormat(Flags<TextFormat> format);
170
172 void SetTextColor(Clr color);
173
176 virtual void SetColor(Clr c);
177
179 void ClipText(bool b);
180
183 void SetMinSize(bool b);
184
192 template <class T>
193 void operator<<(T t);
194
195 void operator+=(const std::string& s);
196 void operator+=(char c);
197 void Clear();
198
202 void Insert(CPSize pos, char c);
203
205 void Insert(CPSize pos, const std::string& s);
206
209 void Erase(CPSize pos, CPSize num = CP1);
210
214 void Insert(std::size_t line, CPSize pos, char c);
215
217 void Insert(std::size_t line, CPSize pos, const std::string& s);
218
221 void Erase(std::size_t line, CPSize pos, CPSize num = CP1);
223
224 protected:
226 TextControl();
227
228
230
231 const std::vector<Font::LineData>& GetLineData() const;
232
234 const boost::shared_ptr<Font>& GetFont() const;
235
238 bool FitToText() const;
240
241 private:
242 void ValidateFormat();
243 void AdjustMinimumSize();
244 void RecomputeTextBounds();
245
246 std::string m_text;
247 Flags<TextFormat> m_format;
248 Clr m_text_color;
249 bool m_clip_text;
250 bool m_set_min_size;
251 std::vector<boost::shared_ptr<Font::TextElement> >
252 m_text_elements;
253 std::vector<Font::LineData> m_line_data;
254 CPSize m_code_points;
255 boost::shared_ptr<Font> m_font;
256 bool m_fit_to_text;
257 Pt m_text_ul;
258 Pt m_text_lr;
259 };
260
261 } // namespace GG
262
263 // template implementations
264 template <class T>
265 void GG::TextControl::operator>>(T& t) const
266 {
267 try {
268 t = boost::lexical_cast<T>(m_text);
269 } catch (boost::bad_lexical_cast) {
270 t = T();
271 }
272 }
273
274 template <class T>
275 T GG::TextControl::GetValue() const
276 { return boost::lexical_cast<T, std::string>(m_text); }
277
278 template <class T>
279 void GG::TextControl::operator<<(T t)
280 { SetText(boost::lexical_cast<std::string>(t)); }
281
282 #endif