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comparison ext/guichan-0.8.1/src/widgets/radiobutton.cpp @ 0:4a0efb7baf70

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* Datasets becomes the new trunk and retires after that :-)
author mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
date Sun, 29 Jun 2008 18:44:17 +0000
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-1:000000000000 0:4a0efb7baf70
1 /* _______ __ __ __ ______ __ __ _______ __ __
2 * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
3 * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
4 * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
5 * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
6 * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
7 * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
8 *
9 * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
10 *
11 *
12 * Per Larsson a.k.a finalman
13 * Olof Naessén a.k.a jansem/yakslem
14 *
15 * Visit: http://guichan.sourceforge.net
16 *
17 * License: (BSD)
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions
20 * are met:
21 * 1. Redistributions of source code must retain the above copyright
22 * notice, this list of conditions and the following disclaimer.
23 * 2. Redistributions in binary form must reproduce the above copyright
24 * notice, this list of conditions and the following disclaimer in
25 * the documentation and/or other materials provided with the
26 * distribution.
27 * 3. Neither the name of Guichan nor the names of its contributors may
28 * be used to endorse or promote products derived from this software
29 * without specific prior written permission.
30 *
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
36 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
37 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
38 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
39 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
40 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
41 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 */
43
44 /*
45 * For comments regarding functions please see the header file.
46 */
47
48 #include "guichan/widgets/radiobutton.hpp"
49
50 #include "guichan/font.hpp"
51 #include "guichan/graphics.hpp"
52 #include "guichan/key.hpp"
53 #include "guichan/mouseinput.hpp"
54
55 namespace gcn
56 {
57 RadioButton::GroupMap RadioButton::mGroupMap;
58
59 RadioButton::RadioButton()
60 {
61 setSelected(false);
62
63 setFocusable(true);
64 addMouseListener(this);
65 addKeyListener(this);
66 }
67
68 RadioButton::RadioButton(const std::string &caption,
69 const std::string &group,
70 bool selected)
71 {
72 setCaption(caption);
73 setGroup(group);
74 setSelected(selected);
75
76 setFocusable(true);
77 addMouseListener(this);
78 addKeyListener(this);
79
80 adjustSize();
81 }
82
83 RadioButton::~RadioButton()
84 {
85 // Remove us from the group list
86 setGroup("");
87 }
88
89 void RadioButton::draw(Graphics* graphics)
90 {
91 graphics->pushClipArea(Rectangle(1,
92 1,
93 getWidth() - 1,
94 getHeight() - 1));
95 drawBox(graphics);
96 graphics->popClipArea();
97
98
99 graphics->setFont(getFont());
100 graphics->setColor(getForegroundColor());
101
102 if (isFocused())
103 {
104 int fh;
105
106 if (getHeight()%2 == 0)
107 {
108 fh = getHeight() - 4;
109 }
110 else
111 {
112 fh = getHeight() - 3;
113 }
114
115 int hh = (fh + 1) / 2;
116
117 graphics->drawLine(0, hh + 1, hh + 1, 0);
118 graphics->drawLine(hh + 2, 1, fh + 2, hh + 1);
119 graphics->drawLine(fh + 1, hh + 2, hh + 1, fh + 2);
120 graphics->drawLine(hh + 1, fh + 2, 1, hh + 2);
121 }
122
123 int h = getHeight() + getHeight() / 2;
124
125 graphics->drawText(getCaption(), h - 2, 0);
126 }
127
128 void RadioButton::drawBox(Graphics *graphics)
129 {
130 int h;
131
132 if (getHeight()%2 == 0)
133 {
134 h = getHeight() - 4;
135 }
136 else
137 {
138 h = getHeight() - 3;
139 }
140
141 int alpha = getBaseColor().a;
142 Color faceColor = getBaseColor();
143 faceColor.a = alpha;
144 Color highlightColor = faceColor + 0x303030;
145 highlightColor.a = alpha;
146 Color shadowColor = faceColor - 0x303030;
147 shadowColor.a = alpha;
148
149 graphics->setColor(getBackgroundColor());
150
151 int i;
152 int hh = (h + 1) / 2;
153
154 for (i = 1; i <= hh; ++i)
155 {
156 graphics->drawLine(hh - i + 1,
157 i,
158 hh + i - 1,
159 i);
160 }
161
162 for (i = 1; i < hh; ++i)
163 {
164 graphics->drawLine(hh - i + 1,
165 h - i,
166 hh + i - 1,
167 h - i);
168 }
169
170 graphics->setColor(shadowColor);
171 graphics->drawLine(hh, 0, 0, hh);
172 graphics->drawLine(hh + 1, 1, h - 1, hh - 1);
173
174 graphics->setColor(highlightColor);
175 graphics->drawLine(1, hh + 1, hh, h);
176 graphics->drawLine(hh + 1, h - 1, h, hh);
177
178 graphics->setColor(getForegroundColor());
179
180 int hhh = hh - 3;
181 if (mSelected)
182 {
183 for (i = 0; i < hhh; ++i)
184 {
185 graphics->drawLine(hh - i, 4 + i, hh + i, 4 + i);
186 }
187 for (i = 0; i < hhh; ++i)
188 {
189 graphics->drawLine(hh - i, h - 4 - i, hh + i, h - 4 - i);
190 }
191
192 }
193 }
194
195 bool RadioButton::isSelected() const
196 {
197 return mSelected;
198 }
199
200 void RadioButton::setSelected(bool selected)
201 {
202 if (selected && mGroup != "")
203 {
204 GroupIterator iter, iterEnd;
205 iterEnd = mGroupMap.upper_bound(mGroup);
206
207 for (iter = mGroupMap.lower_bound(mGroup);
208 iter != iterEnd;
209 iter++)
210 {
211 if (iter->second->isSelected())
212 {
213 iter->second->setSelected(false);
214 }
215 }
216 }
217
218 mSelected = selected;
219 }
220
221 const std::string &RadioButton::getCaption() const
222 {
223 return mCaption;
224 }
225
226 void RadioButton::setCaption(const std::string caption)
227 {
228 mCaption = caption;
229 }
230
231 void RadioButton::keyPressed(KeyEvent& keyEvent)
232 {
233 Key key = keyEvent.getKey();
234
235 if (key.getValue() == Key::ENTER ||
236 key.getValue() == Key::SPACE)
237 {
238 setSelected(true);
239 distributeActionEvent();
240 keyEvent.consume();
241 }
242 }
243
244 void RadioButton::mouseClicked(MouseEvent& mouseEvent)
245 {
246 if (mouseEvent.getButton() == MouseEvent::LEFT)
247 {
248 setSelected(true);
249 distributeActionEvent();
250 }
251 }
252
253 void RadioButton::mouseDragged(MouseEvent& mouseEvent)
254 {
255 mouseEvent.consume();
256 }
257
258 void RadioButton::setGroup(const std::string &group)
259 {
260 if (mGroup != "")
261 {
262 GroupIterator iter, iterEnd;
263 iterEnd = mGroupMap.upper_bound(mGroup);
264
265 for (iter = mGroupMap.lower_bound(mGroup);
266 iter != iterEnd;
267 iter++)
268 {
269 if (iter->second == this)
270 {
271 mGroupMap.erase(iter);
272 break;
273 }
274 }
275 }
276
277 if (group != "")
278 {
279 mGroupMap.insert(
280 std::pair<std::string, RadioButton *>(group, this));
281 }
282
283 mGroup = group;
284 }
285
286 const std::string &RadioButton::getGroup() const
287 {
288 return mGroup;
289 }
290
291 void RadioButton::adjustSize()
292 {
293 int height = getFont()->getHeight();
294
295 setHeight(height);
296 setWidth(getFont()->getWidth(getCaption()) + height + height/2);
297 }
298 }