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<h1>qwt_arrow_button.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</span>
21
<a name="l00002"></a>00002 <span class="comment"> * Qwt Widget Library</span>
22
<a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 1997 Josef Wilgen</span>
23
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2002 Uwe Rathmann</span>
24
<a name="l00005"></a>00005 <span class="comment"> * </span>
25
<a name="l00006"></a>00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
26
<a name="l00007"></a>00007 <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span>
27
<a name="l00008"></a>00008 <span class="comment"> *****************************************************************************/</span>
28
<a name="l00009"></a>00009
29
<a name="l00010"></a>00010 <span class="preprocessor">#include <qpainter.h></span>
30
<a name="l00011"></a>00011 <span class="preprocessor">#include <qstyle.h></span>
31
<a name="l00012"></a>00012 <span class="preprocessor">#include <qevent.h></span>
32
<a name="l00013"></a>00013 <span class="preprocessor">#include "qwt_math.h"</span>
33
<a name="l00014"></a>00014 <span class="preprocessor">#include "qwt_polygon.h"</span>
34
<a name="l00015"></a>00015 <span class="preprocessor">#include "qwt_arrow_button.h"</span>
35
<a name="l00016"></a>00016
36
<a name="l00017"></a>00017 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> MaxNum = 3;
37
<a name="l00018"></a>00018 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> Margin = 2;
38
<a name="l00019"></a>00019 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> Spacing = 1;
39
<a name="l00020"></a>00020
40
<a name="l00021"></a>00021 <span class="keyword">class </span>QwtArrowButton::PrivateData
41
<a name="l00022"></a>00022 {
42
<a name="l00023"></a>00023 <span class="keyword">public</span>:
43
<a name="l00024"></a>00024 <span class="keywordtype">int</span> <a class="code" href="class_qwt_arrow_button.html#680ecdc99fdc5971ddfabc643e1ed52a">num</a>;
44
<a name="l00025"></a>00025 Qt::ArrowType <a class="code" href="class_qwt_arrow_button.html#7e9b1a97e6f6281aee4ada6293931d90">arrowType</a>;
45
<a name="l00026"></a>00026 };
46
<a name="l00027"></a>00027
47
<a name="l00028"></a>00028
48
<a name="l00029"></a>00029 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
49
<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#include <qstyleoption.h></span>
50
<a name="l00031"></a>00031 <span class="keyword">static</span> QStyleOptionButton styleOpt(<span class="keyword">const</span> <a class="code" href="class_qwt_arrow_button.html">QwtArrowButton</a>* btn)
51
<a name="l00032"></a>00032 {
52
<a name="l00033"></a>00033 QStyleOptionButton option;
53
<a name="l00034"></a>00034 option.init(btn);
54
<a name="l00035"></a>00035 option.features = QStyleOptionButton::None;
55
<a name="l00036"></a>00036 <span class="keywordflow">if</span> (btn->isFlat())
56
<a name="l00037"></a>00037 option.features |= QStyleOptionButton::Flat;
57
<a name="l00038"></a>00038 if (btn->menu())
58
<a name="l00039"></a>00039 option.features |= QStyleOptionButton::HasMenu;
59
<a name="l00040"></a>00040 if (btn->autoDefault() || btn->isDefault())
60
<a name="l00041"></a>00041 option.features |= QStyleOptionButton::AutoDefaultButton;
61
<a name="l00042"></a>00042 if (btn->isDefault())
62
<a name="l00043"></a>00043 option.features |= QStyleOptionButton::DefaultButton;
63
<a name="l00044"></a>00044 if (btn->isDown())
64
<a name="l00045"></a>00045 option.state |= QStyle::State_Sunken;
65
<a name="l00046"></a>00046 if (!btn->isFlat() && !btn->isDown())
66
<a name="l00047"></a>00047 option.state |= QStyle::State_Raised;
67
<a name="l00048"></a>00048
68
<a name="l00049"></a>00049 <span class="keywordflow">return</span> option;
69
<a name="l00050"></a>00050 }
70
<a name="l00051"></a>00051 <span class="preprocessor">#endif</span>
71
<a name="l00052"></a>00052 <span class="preprocessor"></span>
72
<a name="l00058"></a><a class="code" href="class_qwt_arrow_button.html#b0ad5aefdd56db10976796be717671e9">00058</a> <a class="code" href="class_qwt_arrow_button.html#b0ad5aefdd56db10976796be717671e9">QwtArrowButton::QwtArrowButton</a>(<span class="keywordtype">int</span> <a class="code" href="class_qwt_arrow_button.html#680ecdc99fdc5971ddfabc643e1ed52a">num</a>,
73
<a name="l00059"></a>00059 Qt::ArrowType <a class="code" href="class_qwt_arrow_button.html#7e9b1a97e6f6281aee4ada6293931d90">arrowType</a>, QWidget *parent):
74
<a name="l00060"></a>00060 QPushButton(parent)
75
<a name="l00061"></a>00061 {
76
<a name="l00062"></a>00062 d_data = <span class="keyword">new</span> PrivateData;
77
<a name="l00063"></a>00063 d_data->num = qwtLim(num, 1, MaxNum);
78
<a name="l00064"></a>00064 d_data->arrowType = arrowType;
79
<a name="l00065"></a>00065
80
<a name="l00066"></a>00066 setAutoRepeat(<span class="keyword">true</span>);
81
<a name="l00067"></a>00067 setAutoDefault(<span class="keyword">false</span>);
82
<a name="l00068"></a>00068
83
<a name="l00069"></a>00069 <span class="keywordflow">switch</span>(d_data->arrowType)
84
<a name="l00070"></a>00070 {
85
<a name="l00071"></a>00071 <span class="keywordflow">case</span> Qt::LeftArrow:
86
<a name="l00072"></a>00072 <span class="keywordflow">case</span> Qt::RightArrow:
87
<a name="l00073"></a>00073 setSizePolicy(QSizePolicy::Expanding,
88
<a name="l00074"></a>00074 QSizePolicy::Fixed);
89
<a name="l00075"></a>00075 <span class="keywordflow">break</span>;
90
<a name="l00076"></a>00076 <span class="keywordflow">default</span>:
91
<a name="l00077"></a>00077 setSizePolicy(QSizePolicy::Fixed,
92
<a name="l00078"></a>00078 QSizePolicy::Expanding);
93
<a name="l00079"></a>00079 }
94
<a name="l00080"></a>00080 }
95
<a name="l00081"></a>00081
96
<a name="l00083"></a><a class="code" href="class_qwt_arrow_button.html#506ab071fa7ee92928ace7dcea774a73">00083</a> <a class="code" href="class_qwt_arrow_button.html#506ab071fa7ee92928ace7dcea774a73">QwtArrowButton::~QwtArrowButton</a>()
97
<a name="l00084"></a>00084 {
98
<a name="l00085"></a>00085 <span class="keyword">delete</span> d_data;
99
<a name="l00086"></a>00086 d_data = NULL;
100
<a name="l00087"></a>00087 }
101
<a name="l00088"></a>00088
102
<a name="l00092"></a><a class="code" href="class_qwt_arrow_button.html#7e9b1a97e6f6281aee4ada6293931d90">00092</a> Qt::ArrowType <a class="code" href="class_qwt_arrow_button.html#7e9b1a97e6f6281aee4ada6293931d90">QwtArrowButton::arrowType</a>()<span class="keyword"> const </span>
103
<a name="l00093"></a>00093 <span class="keyword"></span>{
104
<a name="l00094"></a>00094 <span class="keywordflow">return</span> d_data->arrowType;
105
<a name="l00095"></a>00095 }
106
<a name="l00096"></a>00096
107
<a name="l00100"></a><a class="code" href="class_qwt_arrow_button.html#680ecdc99fdc5971ddfabc643e1ed52a">00100</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_arrow_button.html#680ecdc99fdc5971ddfabc643e1ed52a">QwtArrowButton::num</a>()<span class="keyword"> const </span>
108
<a name="l00101"></a>00101 <span class="keyword"></span>{
109
<a name="l00102"></a>00102 <span class="keywordflow">return</span> d_data->num;
110
<a name="l00103"></a>00103 }
111
<a name="l00104"></a>00104
112
<a name="l00108"></a><a class="code" href="class_qwt_arrow_button.html#5f4449198f900946579c843ff56e0a5a">00108</a> QRect <a class="code" href="class_qwt_arrow_button.html#5f4449198f900946579c843ff56e0a5a">QwtArrowButton::labelRect</a>()<span class="keyword"> const</span>
113
<a name="l00109"></a>00109 <span class="keyword"></span>{
114
<a name="l00110"></a>00110 <span class="keyword">const</span> <span class="keywordtype">int</span> m = Margin;
115
<a name="l00111"></a>00111
116
<a name="l00112"></a>00112 QRect r = rect();
117
<a name="l00113"></a>00113 r.setRect(r.x() + m, r.y() + m,
118
<a name="l00114"></a>00114 r.width() - 2 * m, r.height() - 2 * m);
119
<a name="l00115"></a>00115
120
<a name="l00116"></a>00116 <span class="keywordflow">if</span> ( isDown() )
121
<a name="l00117"></a>00117 {
122
<a name="l00118"></a>00118 <span class="keywordtype">int</span> ph, pv;
123
<a name="l00119"></a>00119 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
124
<a name="l00120"></a>00120 <span class="preprocessor"></span> ph = style().pixelMetric(
125
<a name="l00121"></a>00121 QStyle::PM_ButtonShiftHorizontal, <span class="keyword">this</span>);
126
<a name="l00122"></a>00122 pv = style().pixelMetric(
127
<a name="l00123"></a>00123 QStyle::PM_ButtonShiftVertical, <span class="keyword">this</span>);
128
<a name="l00124"></a>00124 r.moveBy(ph, pv);
129
<a name="l00125"></a>00125 <span class="preprocessor">#else</span>
130
<a name="l00126"></a>00126 <span class="preprocessor"></span> QStyleOptionButton option = styleOpt(<span class="keyword">this</span>);
131
<a name="l00127"></a>00127 ph = style()->pixelMetric(
132
<a name="l00128"></a>00128 QStyle::PM_ButtonShiftHorizontal, &option, <span class="keyword">this</span>);
133
<a name="l00129"></a>00129 pv = style()->pixelMetric(
134
<a name="l00130"></a>00130 QStyle::PM_ButtonShiftVertical, &option, <span class="keyword">this</span>);
135
<a name="l00131"></a>00131 r.translate(ph, pv);
136
<a name="l00132"></a>00132 <span class="preprocessor">#endif</span>
137
<a name="l00133"></a>00133 <span class="preprocessor"></span> }
138
<a name="l00134"></a>00134
139
<a name="l00135"></a>00135 <span class="keywordflow">return</span> r;
140
<a name="l00136"></a>00136 }
141
<a name="l00137"></a>00137
142
<a name="l00138"></a>00138 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
143
<a name="l00139"></a>00139 <span class="preprocessor"></span>
144
<a name="l00143"></a><a class="code" href="class_qwt_arrow_button.html#d9bdd4ed2e655aa19929ab436ec8ab45">00143</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_arrow_button.html#d9bdd4ed2e655aa19929ab436ec8ab45">QwtArrowButton::paintEvent</a>(QPaintEvent *event)
145
<a name="l00144"></a>00144 {
146
<a name="l00145"></a>00145 QPushButton::paintEvent(event);
147
<a name="l00146"></a>00146 QPainter painter(<span class="keyword">this</span>);
148
<a name="l00147"></a>00147 <a class="code" href="class_qwt_arrow_button.html#fc342cb3eaa01afe5aa897b3fd6aa7c2">drawButtonLabel</a>(&painter);
149
<a name="l00148"></a>00148 }
150
<a name="l00149"></a>00149 <span class="preprocessor">#endif</span>
151
<a name="l00150"></a>00150 <span class="preprocessor"></span>
152
<a name="l00157"></a><a class="code" href="class_qwt_arrow_button.html#fc342cb3eaa01afe5aa897b3fd6aa7c2">00157</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_arrow_button.html#fc342cb3eaa01afe5aa897b3fd6aa7c2">QwtArrowButton::drawButtonLabel</a>(QPainter *painter)
153
<a name="l00158"></a>00158 {
154
<a name="l00159"></a>00159 <span class="keyword">const</span> <span class="keywordtype">bool</span> isVertical = d_data->arrowType == Qt::UpArrow ||
155
<a name="l00160"></a>00160 d_data->arrowType == Qt::DownArrow;
156
<a name="l00161"></a>00161
157
<a name="l00162"></a>00162 <span class="keyword">const</span> QRect r = <a class="code" href="class_qwt_arrow_button.html#5f4449198f900946579c843ff56e0a5a">labelRect</a>();
158
<a name="l00163"></a>00163 QSize boundingSize = <a class="code" href="class_qwt_arrow_button.html#5f4449198f900946579c843ff56e0a5a">labelRect</a>().size();
159
<a name="l00164"></a>00164 <span class="keywordflow">if</span> ( isVertical )
160
<a name="l00165"></a>00165 boundingSize.transpose();
161
<a name="l00166"></a>00166
162
<a name="l00167"></a>00167 <span class="keyword">const</span> <span class="keywordtype">int</span> w =
163
<a name="l00168"></a>00168 (boundingSize.width() - (MaxNum - 1) * Spacing) / MaxNum;
164
<a name="l00169"></a>00169
165
<a name="l00170"></a>00170 QSize arrow = <a class="code" href="class_qwt_arrow_button.html#018b7b1a6c1e2b74f8edcb0421310cfa">arrowSize</a>(Qt::RightArrow,
166
<a name="l00171"></a>00171 QSize(w, boundingSize.height()));
167
<a name="l00172"></a>00172
168
<a name="l00173"></a>00173 <span class="keywordflow">if</span> ( isVertical )
169
<a name="l00174"></a>00174 arrow.transpose();
170
<a name="l00175"></a>00175
171
<a name="l00176"></a>00176 QRect contentsSize; <span class="comment">// aligned rect where to paint all arrows</span>
172
<a name="l00177"></a>00177 <span class="keywordflow">if</span> ( d_data->arrowType == Qt::LeftArrow || d_data->arrowType == Qt::RightArrow )
173
<a name="l00178"></a>00178 {
174
<a name="l00179"></a>00179 contentsSize.setWidth(d_data->num * arrow.width()
175
<a name="l00180"></a>00180 + (d_data->num - 1) * Spacing);
176
<a name="l00181"></a>00181 contentsSize.setHeight(arrow.height());
177
<a name="l00182"></a>00182 }
178
<a name="l00183"></a>00183 <span class="keywordflow">else</span>
179
<a name="l00184"></a>00184 {
180
<a name="l00185"></a>00185 contentsSize.setWidth(arrow.width());
181
<a name="l00186"></a>00186 contentsSize.setHeight(d_data->num * arrow.height()
182
<a name="l00187"></a>00187 + (d_data->num - 1) * Spacing);
183
<a name="l00188"></a>00188 }
184
<a name="l00189"></a>00189
185
<a name="l00190"></a>00190 QRect arrowRect(contentsSize);
186
<a name="l00191"></a>00191 arrowRect.moveCenter(r.center());
187
<a name="l00192"></a>00192 arrowRect.setSize(arrow);
188
<a name="l00193"></a>00193
189
<a name="l00194"></a>00194 painter->save();
190
<a name="l00195"></a>00195 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < d_data->num; i++)
191
<a name="l00196"></a>00196 {
192
<a name="l00197"></a>00197 <a class="code" href="class_qwt_arrow_button.html#54c272f2ca19627613415fb5e0bf0b88">drawArrow</a>(painter, arrowRect, d_data->arrowType);
193
<a name="l00198"></a>00198
194
<a name="l00199"></a>00199 <span class="keywordtype">int</span> dx = 0;
195
<a name="l00200"></a>00200 <span class="keywordtype">int</span> dy = 0;
196
<a name="l00201"></a>00201
197
<a name="l00202"></a>00202 if ( isVertical )
198
<a name="l00203"></a>00203 dy = arrow.height() + Spacing;
199
<a name="l00204"></a>00204 <span class="keywordflow">else</span>
200
<a name="l00205"></a>00205 dx = arrow.width() + Spacing;
201
<a name="l00206"></a>00206
202
<a name="l00207"></a>00207 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
203
<a name="l00208"></a>00208 <span class="preprocessor"></span> arrowRect.translate(dx, dy);
204
<a name="l00209"></a>00209 <span class="preprocessor">#else</span>
205
<a name="l00210"></a>00210 <span class="preprocessor"></span> arrowRect.moveBy(dx, dy);
206
<a name="l00211"></a>00211 <span class="preprocessor">#endif</span>
207
<a name="l00212"></a>00212 <span class="preprocessor"></span> }
208
<a name="l00213"></a>00213 painter->restore();
209
<a name="l00214"></a>00214
210
<a name="l00215"></a>00215 <span class="keywordflow">if</span> ( hasFocus() )
211
<a name="l00216"></a>00216 {
212
<a name="l00217"></a>00217 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
213
<a name="l00218"></a>00218 <span class="preprocessor"></span> QStyleOptionFocusRect option;
214
<a name="l00219"></a>00219 option.init(<span class="keyword">this</span>);
215
<a name="l00220"></a>00220 option.backgroundColor = palette().color(QPalette::Background);
216
<a name="l00221"></a>00221
217
<a name="l00222"></a>00222 style()->drawPrimitive(QStyle::PE_FrameFocusRect,
218
<a name="l00223"></a>00223 &option, painter, <span class="keyword">this</span>);
219
<a name="l00224"></a>00224 <span class="preprocessor">#else</span>
220
<a name="l00225"></a>00225 <span class="preprocessor"></span> <span class="keyword">const</span> QRect focusRect =
221
<a name="l00226"></a>00226 style().subRect(QStyle::SR_PushButtonFocusRect, <span class="keyword">this</span>);
222
<a name="l00227"></a>00227 style().drawPrimitive(QStyle::PE_FocusRect, painter,
223
<a name="l00228"></a>00228 focusRect, colorGroup());
224
<a name="l00229"></a>00229 <span class="preprocessor">#endif</span>
225
<a name="l00230"></a>00230 <span class="preprocessor"></span> }
226
<a name="l00231"></a>00231 }
227
<a name="l00232"></a>00232
228
<a name="l00240"></a><a class="code" href="class_qwt_arrow_button.html#54c272f2ca19627613415fb5e0bf0b88">00240</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_arrow_button.html#54c272f2ca19627613415fb5e0bf0b88">QwtArrowButton::drawArrow</a>(QPainter *painter,
229
<a name="l00241"></a>00241 <span class="keyword">const</span> QRect &r, Qt::ArrowType arrowType)<span class="keyword"> const </span>
230
<a name="l00242"></a>00242 <span class="keyword"></span>{
231
<a name="l00243"></a>00243 QwtPolygon pa(3);
232
<a name="l00244"></a>00244
233
<a name="l00245"></a>00245 <span class="keywordflow">switch</span>(arrowType)
234
<a name="l00246"></a>00246 {
235
<a name="l00247"></a>00247 <span class="keywordflow">case</span> Qt::UpArrow:
236
<a name="l00248"></a>00248 pa.setPoint(0, r.bottomLeft());
237
<a name="l00249"></a>00249 pa.setPoint(1, r.bottomRight());
238
<a name="l00250"></a>00250 pa.setPoint(2, r.center().x(), r.top());
239
<a name="l00251"></a>00251 <span class="keywordflow">break</span>;
240
<a name="l00252"></a>00252 <span class="keywordflow">case</span> Qt::DownArrow:
241
<a name="l00253"></a>00253 pa.setPoint(0, r.topLeft());
242
<a name="l00254"></a>00254 pa.setPoint(1, r.topRight());
243
<a name="l00255"></a>00255 pa.setPoint(2, r.center().x(), r.bottom());
244
<a name="l00256"></a>00256 <span class="keywordflow">break</span>;
245
<a name="l00257"></a>00257 <span class="keywordflow">case</span> Qt::RightArrow:
246
<a name="l00258"></a>00258 pa.setPoint(0, r.topLeft());
247
<a name="l00259"></a>00259 pa.setPoint(1, r.bottomLeft());
248
<a name="l00260"></a>00260 pa.setPoint(2, r.right(), r.center().y());
249
<a name="l00261"></a>00261 <span class="keywordflow">break</span>;
250
<a name="l00262"></a>00262 <span class="keywordflow">case</span> Qt::LeftArrow:
251
<a name="l00263"></a>00263 pa.setPoint(0, r.topRight());
252
<a name="l00264"></a>00264 pa.setPoint(1, r.bottomRight());
253
<a name="l00265"></a>00265 pa.setPoint(2, r.left(), r.center().y());
254
<a name="l00266"></a>00266 <span class="keywordflow">break</span>;
255
<a name="l00267"></a>00267 <span class="keywordflow">default</span>:
256
<a name="l00268"></a>00268 <span class="keywordflow">break</span>;
257
<a name="l00269"></a>00269 }
258
<a name="l00270"></a>00270
259
<a name="l00271"></a>00271 painter->save();
260
<a name="l00272"></a>00272 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
261
<a name="l00273"></a>00273 <span class="preprocessor"></span> painter->setPen(colorGroup().buttonText());
262
<a name="l00274"></a>00274 painter->setBrush(colorGroup().brush(QColorGroup::ButtonText));
263
<a name="l00275"></a>00275 <span class="preprocessor">#else</span>
264
<a name="l00276"></a>00276 <span class="preprocessor"></span> painter->setPen(palette().color(QPalette::ButtonText));
265
<a name="l00277"></a>00277 painter->setBrush(palette().brush(QPalette::ButtonText));
266
<a name="l00278"></a>00278 <span class="preprocessor">#endif</span>
267
<a name="l00279"></a>00279 <span class="preprocessor"></span> painter->drawPolygon(pa);
268
<a name="l00280"></a>00280 painter->restore();
269
<a name="l00281"></a>00281 }
270
<a name="l00282"></a>00282
271
<a name="l00286"></a><a class="code" href="class_qwt_arrow_button.html#db6261ccd02e32c824a8af86f0120aee">00286</a> QSize <a class="code" href="class_qwt_arrow_button.html#db6261ccd02e32c824a8af86f0120aee">QwtArrowButton::sizeHint</a>()<span class="keyword"> const</span>
272
<a name="l00287"></a>00287 <span class="keyword"></span>{
273
<a name="l00288"></a>00288 <span class="keywordflow">return</span> <a class="code" href="class_qwt_arrow_button.html#b5f5985f350107db6e785281135a187c">minimumSizeHint</a>();
274
<a name="l00289"></a>00289 }
275
<a name="l00290"></a>00290
276
<a name="l00294"></a><a class="code" href="class_qwt_arrow_button.html#b5f5985f350107db6e785281135a187c">00294</a> QSize <a class="code" href="class_qwt_arrow_button.html#b5f5985f350107db6e785281135a187c">QwtArrowButton::minimumSizeHint</a>()<span class="keyword"> const</span>
277
<a name="l00295"></a>00295 <span class="keyword"></span>{
278
<a name="l00296"></a>00296 <span class="keyword">const</span> QSize asz = <a class="code" href="class_qwt_arrow_button.html#018b7b1a6c1e2b74f8edcb0421310cfa">arrowSize</a>(Qt::RightArrow, QSize());
279
<a name="l00297"></a>00297
280
<a name="l00298"></a>00298 QSize sz(
281
<a name="l00299"></a>00299 2 * Margin + (MaxNum - 1) * Spacing + MaxNum * asz.width(),
282
<a name="l00300"></a>00300 2 * Margin + asz.height()
283
<a name="l00301"></a>00301 );
284
<a name="l00302"></a>00302
285
<a name="l00303"></a>00303 <span class="keywordflow">if</span> ( d_data->arrowType == Qt::UpArrow || d_data->arrowType == Qt::DownArrow )
286
<a name="l00304"></a>00304 sz.transpose();
287
<a name="l00305"></a>00305
288
<a name="l00306"></a>00306 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
289
<a name="l00307"></a>00307 <span class="preprocessor"></span> QStyleOption styleOption;
290
<a name="l00308"></a>00308 styleOption.init(<span class="keyword">this</span>);
291
<a name="l00309"></a>00309
292
<a name="l00310"></a>00310 <span class="keyword">const</span> QSize hsz = style()->sizeFromContents(QStyle::CT_PushButton,
293
<a name="l00311"></a>00311 &styleOption, sz, <span class="keyword">this</span>);
294
<a name="l00312"></a>00312 <span class="preprocessor">#if QT_VERSION < 0x040300</span>
295
<a name="l00313"></a>00313 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( hsz.width() != 80 ) <span class="comment">// avoid a bug in the Cleanlooks style</span>
296
<a name="l00314"></a>00314 #endif
297
<a name="l00315"></a>00315 sz = hsz;
298
<a name="l00316"></a>00316
299
<a name="l00317"></a>00317 <span class="preprocessor">#else</span>
300
<a name="l00318"></a>00318 <span class="preprocessor"></span> sz = style().sizeFromContents(QStyle::CT_PushButton, <span class="keyword">this</span>, sz);
301
<a name="l00319"></a>00319 <span class="preprocessor">#endif</span>
302
<a name="l00320"></a>00320 <span class="preprocessor"></span>
303
<a name="l00321"></a>00321 <span class="keywordflow">return</span> sz;
304
<a name="l00322"></a>00322 }
305
<a name="l00323"></a>00323
306
<a name="l00331"></a><a class="code" href="class_qwt_arrow_button.html#018b7b1a6c1e2b74f8edcb0421310cfa">00331</a> QSize <a class="code" href="class_qwt_arrow_button.html#018b7b1a6c1e2b74f8edcb0421310cfa">QwtArrowButton::arrowSize</a>(Qt::ArrowType arrowType,
307
<a name="l00332"></a>00332 <span class="keyword">const</span> QSize &boundingSize)<span class="keyword"> const</span>
308
<a name="l00333"></a>00333 <span class="keyword"></span>{
309
<a name="l00334"></a>00334 QSize bs = boundingSize;
310
<a name="l00335"></a>00335 <span class="keywordflow">if</span> ( arrowType == Qt::UpArrow || arrowType == Qt::DownArrow )
311
<a name="l00336"></a>00336 bs.transpose();
312
<a name="l00337"></a>00337
313
<a name="l00338"></a>00338 <span class="keyword">const</span> <span class="keywordtype">int</span> MinLen = 2;
314
<a name="l00339"></a>00339 <span class="keyword">const</span> QSize sz = bs.expandedTo(
315
<a name="l00340"></a>00340 QSize(MinLen, 2 * MinLen - 1)); <span class="comment">// minimum</span>
316
<a name="l00341"></a>00341
317
<a name="l00342"></a>00342 <span class="keywordtype">int</span> w = sz.width();
318
<a name="l00343"></a>00343 <span class="keywordtype">int</span> h = 2 * w - 1;
319
<a name="l00344"></a>00344
320
<a name="l00345"></a>00345 <span class="keywordflow">if</span> ( h > sz.height() )
321
<a name="l00346"></a>00346 {
322
<a name="l00347"></a>00347 h = sz.height();
323
<a name="l00348"></a>00348 w = (h + 1) / 2;
324
<a name="l00349"></a>00349 }
325
<a name="l00350"></a>00350
326
<a name="l00351"></a>00351 QSize arrSize(w, h);
327
<a name="l00352"></a>00352 <span class="keywordflow">if</span> ( arrowType == Qt::UpArrow || arrowType == Qt::DownArrow )
328
<a name="l00353"></a>00353 arrSize.transpose();
329
<a name="l00354"></a>00354
330
<a name="l00355"></a>00355 <span class="keywordflow">return</span> arrSize;
331
<a name="l00356"></a>00356 }
332
<a name="l00357"></a>00357
333
<a name="l00361"></a><a class="code" href="class_qwt_arrow_button.html#17612daa99344272c4de1313a5c67b02">00361</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_arrow_button.html#17612daa99344272c4de1313a5c67b02">QwtArrowButton::keyPressEvent</a>(QKeyEvent *e)
334
<a name="l00362"></a>00362 {
335
<a name="l00363"></a>00363 <span class="keywordflow">if</span> ( e->isAutoRepeat() && e->key() == Qt::Key_Space )
336
<a name="l00364"></a>00364 emit clicked();
337
<a name="l00365"></a>00365
338
<a name="l00366"></a>00366 QPushButton::keyPressEvent(e);
339
<a name="l00367"></a>00367 }
340
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Sat May 24 18:47:39 2008 for Qwt User's Guide by
341
<a href="http://www.doxygen.org/index.html">
342
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.0 </small></address>