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<h1>qwt_wheel.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 <qevent.h></span>
30
<a name="l00011"></a>00011 <span class="preprocessor">#include <qdrawutil.h></span>
31
<a name="l00012"></a>00012 <span class="preprocessor">#include <qpainter.h></span>
32
<a name="l00013"></a>00013 <span class="preprocessor">#include <qstyle.h></span>
33
<a name="l00014"></a>00014 <span class="preprocessor">#include "qwt_math.h"</span>
34
<a name="l00015"></a>00015 <span class="preprocessor">#include "qwt_painter.h"</span>
35
<a name="l00016"></a>00016 <span class="preprocessor">#include "qwt_paint_buffer.h"</span>
36
<a name="l00017"></a>00017 <span class="preprocessor">#include "qwt_wheel.h"</span>
37
<a name="l00018"></a>00018
38
<a name="l00019"></a>00019 <span class="preprocessor">#define NUM_COLORS 30</span>
39
<a name="l00020"></a>00020 <span class="preprocessor"></span>
40
<a name="l00021"></a>00021 <span class="keyword">class </span>QwtWheel::PrivateData
41
<a name="l00022"></a>00022 {
42
<a name="l00023"></a>00023 <span class="keyword">public</span>:
43
<a name="l00024"></a>00024 PrivateData()
44
<a name="l00025"></a>00025 {
45
<a name="l00026"></a>00026 <a class="code" href="class_qwt_wheel.html#81f3e69d4b9cc5badc514d9d74c40f3b">viewAngle</a> = 175.0;
46
<a name="l00027"></a>00027 <a class="code" href="class_qwt_wheel.html#e88b6f36175c8af955fda61b2874c4d8">totalAngle</a> = 360.0;
47
<a name="l00028"></a>00028 <a class="code" href="class_qwt_wheel.html#e25ebe1d5d7b9af8b00150aeacd73415">tickCnt</a> = 10;
48
<a name="l00029"></a>00029 intBorder = 2;
49
<a name="l00030"></a>00030 borderWidth = 2;
50
<a name="l00031"></a>00031 wheelWidth = 20;
51
<a name="l00032"></a>00032 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
52
<a name="l00033"></a>00033 <span class="preprocessor"></span> allocContext = 0;
53
<a name="l00034"></a>00034 <span class="preprocessor">#endif</span>
54
<a name="l00035"></a>00035 <span class="preprocessor"></span> };
55
<a name="l00036"></a>00036
56
<a name="l00037"></a>00037 QRect sliderRect;
57
<a name="l00038"></a>00038 <span class="keywordtype">double</span> <a class="code" href="class_qwt_wheel.html#81f3e69d4b9cc5badc514d9d74c40f3b">viewAngle</a>;
58
<a name="l00039"></a>00039 <span class="keywordtype">double</span> <a class="code" href="class_qwt_wheel.html#e88b6f36175c8af955fda61b2874c4d8">totalAngle</a>;
59
<a name="l00040"></a>00040 <span class="keywordtype">int</span> <a class="code" href="class_qwt_wheel.html#e25ebe1d5d7b9af8b00150aeacd73415">tickCnt</a>;
60
<a name="l00041"></a>00041 <span class="keywordtype">int</span> intBorder;
61
<a name="l00042"></a>00042 <span class="keywordtype">int</span> borderWidth;
62
<a name="l00043"></a>00043 <span class="keywordtype">int</span> wheelWidth;
63
<a name="l00044"></a>00044 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
64
<a name="l00045"></a>00045 <span class="preprocessor"></span> <span class="keywordtype">int</span> allocContext;
65
<a name="l00046"></a>00046 <span class="preprocessor">#endif</span>
66
<a name="l00047"></a>00047 <span class="preprocessor"></span> QColor colors[NUM_COLORS];
67
<a name="l00048"></a>00048 };
68
<a name="l00049"></a>00049
69
<a name="l00051"></a><a class="code" href="class_qwt_wheel.html#98fc47123aac47168b5d98a73b87d0a7">00051</a> <a class="code" href="class_qwt_wheel.html#98fc47123aac47168b5d98a73b87d0a7">QwtWheel::QwtWheel</a>(QWidget *parent):
70
<a name="l00052"></a>00052 <a class="code" href="class_qwt_abstract_slider.html">QwtAbstractSlider</a>(Qt::Horizontal, parent)
71
<a name="l00053"></a>00053 {
72
<a name="l00054"></a>00054 initWheel();
73
<a name="l00055"></a>00055 }
74
<a name="l00056"></a>00056
75
<a name="l00057"></a>00057 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
76
<a name="l00058"></a>00058 <span class="preprocessor"></span><a class="code" href="class_qwt_wheel.html#98fc47123aac47168b5d98a73b87d0a7">QwtWheel::QwtWheel</a>(QWidget *parent, <span class="keyword">const</span> <span class="keywordtype">char</span> *name):
77
<a name="l00059"></a>00059 <a class="code" href="class_qwt_abstract_slider.html">QwtAbstractSlider</a>(Qt::Horizontal, parent)
78
<a name="l00060"></a>00060 {
79
<a name="l00061"></a>00061 setName(name);
80
<a name="l00062"></a>00062 initWheel();
81
<a name="l00063"></a>00063 }
82
<a name="l00064"></a>00064 <span class="preprocessor">#endif</span>
83
<a name="l00065"></a>00065 <span class="preprocessor"></span>
84
<a name="l00066"></a>00066 <span class="keywordtype">void</span> QwtWheel::initWheel()
85
<a name="l00067"></a>00067 {
86
<a name="l00068"></a>00068 d_data = <span class="keyword">new</span> PrivateData;
87
<a name="l00069"></a>00069
88
<a name="l00070"></a>00070 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
89
<a name="l00071"></a>00071 <span class="preprocessor"></span> setWFlags(Qt::WNoAutoErase);
90
<a name="l00072"></a>00072 <span class="preprocessor">#endif</span>
91
<a name="l00073"></a>00073 <span class="preprocessor"></span>
92
<a name="l00074"></a>00074 setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
93
<a name="l00075"></a>00075
94
<a name="l00076"></a>00076 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
95
<a name="l00077"></a>00077 <span class="preprocessor"></span> setAttribute(Qt::WA_WState_OwnSizePolicy, <span class="keyword">false</span>);
96
<a name="l00078"></a>00078 <span class="preprocessor">#else</span>
97
<a name="l00079"></a>00079 <span class="preprocessor"></span> clearWState( WState_OwnSizePolicy );
98
<a name="l00080"></a>00080 <span class="preprocessor">#endif</span>
99
<a name="l00081"></a>00081 <span class="preprocessor"></span>
100
<a name="l00082"></a>00082 <a class="code" href="class_qwt_abstract_slider.html#945ba36e1b8e20d362083f6737b0601d">setUpdateTime</a>(50);
101
<a name="l00083"></a>00083 }
102
<a name="l00084"></a>00084
103
<a name="l00086"></a><a class="code" href="class_qwt_wheel.html#57f465a31a9d2d88cb7a1d0e6391535e">00086</a> <a class="code" href="class_qwt_wheel.html#57f465a31a9d2d88cb7a1d0e6391535e">QwtWheel::~QwtWheel</a>()
104
<a name="l00087"></a>00087 {
105
<a name="l00088"></a>00088 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
106
<a name="l00089"></a>00089 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( d_data->allocContext )
107
<a name="l00090"></a>00090 QColor::destroyAllocContext( d_data->allocContext );
108
<a name="l00091"></a>00091 <span class="preprocessor">#endif</span>
109
<a name="l00092"></a>00092 <span class="preprocessor"></span> <span class="keyword">delete</span> d_data;
110
<a name="l00093"></a>00093 }
111
<a name="l00094"></a>00094
112
<a name="l00096"></a><a class="code" href="class_qwt_wheel.html#f7d32d9b65d1f55913656a44b2a20646">00096</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#f7d32d9b65d1f55913656a44b2a20646">QwtWheel::setColorArray</a>()
113
<a name="l00097"></a>00097 {
114
<a name="l00098"></a>00098 <span class="keywordflow">if</span> ( !d_data->colors )
115
<a name="l00099"></a>00099 <span class="keywordflow">return</span>;
116
<a name="l00100"></a>00100
117
<a name="l00101"></a>00101 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
118
<a name="l00102"></a>00102 <span class="preprocessor"></span> <span class="keyword">const</span> QColor light = colorGroup().light();
119
<a name="l00103"></a>00103 <span class="keyword">const</span> QColor dark = colorGroup().dark();
120
<a name="l00104"></a>00104 <span class="preprocessor">#else</span>
121
<a name="l00105"></a>00105 <span class="preprocessor"></span> <span class="keyword">const</span> QColor light = palette().color(QPalette::Light);
122
<a name="l00106"></a>00106 <span class="keyword">const</span> QColor dark = palette().color(QPalette::Dark);
123
<a name="l00107"></a>00107 <span class="preprocessor">#endif</span>
124
<a name="l00108"></a>00108 <span class="preprocessor"></span>
125
<a name="l00109"></a>00109 <span class="keywordflow">if</span> ( !d_data->colors[0].isValid() ||
126
<a name="l00110"></a>00110 d_data->colors[0] != light ||
127
<a name="l00111"></a>00111 d_data->colors[NUM_COLORS - 1] != dark )
128
<a name="l00112"></a>00112 {
129
<a name="l00113"></a>00113 #<span class="keywordflow">if</span> QT_VERSION < 0x040000
130
<a name="l00114"></a>00114 <span class="keywordflow">if</span> ( d_data->allocContext )
131
<a name="l00115"></a>00115 QColor::destroyAllocContext( d_data->allocContext );
132
<a name="l00116"></a>00116
133
<a name="l00117"></a>00117 d_data->allocContext = QColor::enterAllocContext();
134
<a name="l00118"></a>00118 <span class="preprocessor">#endif</span>
135
<a name="l00119"></a>00119 <span class="preprocessor"></span>
136
<a name="l00120"></a>00120 d_data->colors[0] = light;
137
<a name="l00121"></a>00121 d_data->colors[NUM_COLORS - 1] = dark;
138
<a name="l00122"></a>00122
139
<a name="l00123"></a>00123 <span class="keywordtype">int</span> dh, ds, dv, lh, ls, lv;
140
<a name="l00124"></a>00124 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
141
<a name="l00125"></a>00125 <span class="preprocessor"></span> d_data->colors[0].rgb(&lh, &ls, &lv);
142
<a name="l00126"></a>00126 d_data->colors[NUM_COLORS - 1].rgb(&dh, &ds, &dv);
143
<a name="l00127"></a>00127 <span class="preprocessor">#else</span>
144
<a name="l00128"></a>00128 <span class="preprocessor"></span> d_data->colors[0].getRgb(&lh, &ls, &lv);
145
<a name="l00129"></a>00129 d_data->colors[NUM_COLORS - 1].getRgb(&dh, &ds, &dv);
146
<a name="l00130"></a>00130 <span class="preprocessor">#endif</span>
147
<a name="l00131"></a>00131 <span class="preprocessor"></span>
148
<a name="l00132"></a>00132 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 1; i < NUM_COLORS - 1; ++i )
149
<a name="l00133"></a>00133 {
150
<a name="l00134"></a>00134 <span class="keyword">const</span> <span class="keywordtype">double</span> factor = <span class="keywordtype">double</span>(i) / <span class="keywordtype">double</span>(NUM_COLORS);
151
<a name="l00135"></a>00135
152
<a name="l00136"></a>00136 d_data->colors[i].setRgb( lh + <span class="keywordtype">int</span>( <span class="keywordtype">double</span>(dh - lh) * factor ),
153
<a name="l00137"></a>00137 ls + <span class="keywordtype">int</span>( <span class="keywordtype">double</span>(ds - ls) * factor ),
154
<a name="l00138"></a>00138 lv + <span class="keywordtype">int</span>( <span class="keywordtype">double</span>(dv - lv) * factor ));
155
<a name="l00139"></a>00139 }
156
<a name="l00140"></a>00140 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
157
<a name="l00141"></a>00141 <span class="preprocessor"></span> QColor::leaveAllocContext();
158
<a name="l00142"></a>00142 <span class="preprocessor">#endif</span>
159
<a name="l00143"></a>00143 <span class="preprocessor"></span> }
160
<a name="l00144"></a>00144 }
161
<a name="l00145"></a>00145
162
<a name="l00154"></a><a class="code" href="class_qwt_wheel.html#8a970c3b4f776217c284cdce15206530">00154</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#8a970c3b4f776217c284cdce15206530">QwtWheel::setTickCnt</a>(<span class="keywordtype">int</span> cnt)
163
<a name="l00155"></a>00155 {
164
<a name="l00156"></a>00156 d_data->tickCnt = qwtLim( cnt, 6, 50 );
165
<a name="l00157"></a>00157 update();
166
<a name="l00158"></a>00158 }
167
<a name="l00159"></a>00159
168
<a name="l00160"></a><a class="code" href="class_qwt_wheel.html#e25ebe1d5d7b9af8b00150aeacd73415">00160</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_wheel.html#e25ebe1d5d7b9af8b00150aeacd73415">QwtWheel::tickCnt</a>()<span class="keyword"> const </span>
169
<a name="l00161"></a>00161 <span class="keyword"></span>{
170
<a name="l00162"></a>00162 <span class="keywordflow">return</span> d_data->tickCnt;
171
<a name="l00163"></a>00163 }
172
<a name="l00164"></a>00164
173
<a name="l00168"></a><a class="code" href="class_qwt_wheel.html#805997f0b3fc520b721bdd11f3808b12">00168</a> <span class="keywordtype">double</span> <a class="code" href="class_qwt_wheel.html#805997f0b3fc520b721bdd11f3808b12">QwtWheel::mass</a>()<span class="keyword"> const</span>
174
<a name="l00169"></a>00169 <span class="keyword"></span>{
175
<a name="l00170"></a>00170 <span class="keywordflow">return</span> <a class="code" href="class_qwt_abstract_slider.html#a9681d70bfbd568d076a916c020b2507">QwtAbstractSlider::mass</a>();
176
<a name="l00171"></a>00171 }
177
<a name="l00172"></a>00172
178
<a name="l00183"></a><a class="code" href="class_qwt_wheel.html#cb9358f6cf27f1552dd7f97ebfd2d3fb">00183</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#cb9358f6cf27f1552dd7f97ebfd2d3fb">QwtWheel::setInternalBorder</a>( <span class="keywordtype">int</span> w )
179
<a name="l00184"></a>00184 {
180
<a name="l00185"></a>00185 <span class="keyword">const</span> <span class="keywordtype">int</span> d = qwtMin( width(), height() ) / 3;
181
<a name="l00186"></a>00186 w = qwtMin( w, d );
182
<a name="l00187"></a>00187 d_data->intBorder = qwtMax( w, 1 );
183
<a name="l00188"></a>00188 <a class="code" href="class_qwt_wheel.html#03a6adc4f6516143501c8114f164d47c">layoutWheel</a>();
184
<a name="l00189"></a>00189 }
185
<a name="l00190"></a>00190
186
<a name="l00191"></a><a class="code" href="class_qwt_wheel.html#443dff663b65855149145b94936cbbaf">00191</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_wheel.html#443dff663b65855149145b94936cbbaf">QwtWheel::internalBorder</a>()<span class="keyword"> const </span>
187
<a name="l00192"></a>00192 <span class="keyword"></span>{
188
<a name="l00193"></a>00193 <span class="keywordflow">return</span> d_data->intBorder;
189
<a name="l00194"></a>00194 }
190
<a name="l00195"></a>00195
191
<a name="l00197"></a><a class="code" href="class_qwt_wheel.html#33b95a78f006f36fee8dafea9531afa9">00197</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#33b95a78f006f36fee8dafea9531afa9">QwtWheel::drawWheelBackground</a>( QPainter *p, <span class="keyword">const</span> QRect &r )
192
<a name="l00198"></a>00198 {
193
<a name="l00199"></a>00199 p->save();
194
<a name="l00200"></a>00200
195
<a name="l00201"></a>00201 <span class="comment">//</span>
196
<a name="l00202"></a>00202 <span class="comment">// initialize pens</span>
197
<a name="l00203"></a>00203 <span class="comment">//</span>
198
<a name="l00204"></a>00204 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
199
<a name="l00205"></a>00205 <span class="preprocessor"></span> <span class="keyword">const</span> QColor light = colorGroup().light();
200
<a name="l00206"></a>00206 <span class="keyword">const</span> QColor dark = colorGroup().dark();
201
<a name="l00207"></a>00207 <span class="preprocessor">#else</span>
202
<a name="l00208"></a>00208 <span class="preprocessor"></span> <span class="keyword">const</span> QColor light = palette().color(QPalette::Light);
203
<a name="l00209"></a>00209 <span class="keyword">const</span> QColor dark = palette().color(QPalette::Dark);
204
<a name="l00210"></a>00210 <span class="preprocessor">#endif</span>
205
<a name="l00211"></a>00211 <span class="preprocessor"></span>
206
<a name="l00212"></a>00212 QPen lightPen;
207
<a name="l00213"></a>00213 lightPen.setColor(light);
208
<a name="l00214"></a>00214 lightPen.setWidth(d_data->intBorder);
209
<a name="l00215"></a>00215
210
<a name="l00216"></a>00216 QPen darkPen;
211
<a name="l00217"></a>00217 darkPen.setColor(dark);
212
<a name="l00218"></a>00218 darkPen.setWidth(d_data->intBorder);
213
<a name="l00219"></a>00219
214
<a name="l00220"></a>00220 <a class="code" href="class_qwt_wheel.html#f7d32d9b65d1f55913656a44b2a20646">setColorArray</a>();
215
<a name="l00221"></a>00221
216
<a name="l00222"></a>00222 <span class="comment">//</span>
217
<a name="l00223"></a>00223 <span class="comment">// initialize auxiliary variables</span>
218
<a name="l00224"></a>00224 <span class="comment">//</span>
219
<a name="l00225"></a>00225
220
<a name="l00226"></a>00226 <span class="keyword">const</span> <span class="keywordtype">int</span> nFields = NUM_COLORS * 13 / 10;
221
<a name="l00227"></a>00227 <span class="keyword">const</span> <span class="keywordtype">int</span> hiPos = nFields - NUM_COLORS + 1;
222
<a name="l00228"></a>00228
223
<a name="l00229"></a>00229 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_abstract_slider.html#5191a5ae69ab34e24463d23a32dbd02f">orientation</a>() == Qt::Horizontal )
224
<a name="l00230"></a>00230 {
225
<a name="l00231"></a>00231 <span class="keyword">const</span> <span class="keywordtype">int</span> rx = r.x();
226
<a name="l00232"></a>00232 <span class="keywordtype">int</span> ry = r.y() + d_data->intBorder;
227
<a name="l00233"></a>00233 <span class="keyword">const</span> <span class="keywordtype">int</span> rh = r.height() - 2* d_data->intBorder;
228
<a name="l00234"></a>00234 <span class="keyword">const</span> <span class="keywordtype">int</span> rw = r.width();
229
<a name="l00235"></a>00235 <span class="comment">//</span>
230
<a name="l00236"></a>00236 <span class="comment">// draw shaded background</span>
231
<a name="l00237"></a>00237 <span class="comment">//</span>
232
<a name="l00238"></a>00238 <span class="keywordtype">int</span> x1 = rx;
233
<a name="l00239"></a>00239 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i < nFields; i++ )
234
<a name="l00240"></a>00240 {
235
<a name="l00241"></a>00241 <span class="keyword">const</span> <span class="keywordtype">int</span> x2 = rx + (rw * i) / nFields;
236
<a name="l00242"></a>00242 p->fillRect(x1, ry, x2-x1 + 1 ,rh, d_data->colors[qwtAbs(i-hiPos)]);
237
<a name="l00243"></a>00243 x1 = x2 + 1;
238
<a name="l00244"></a>00244 }
239
<a name="l00245"></a>00245 p->fillRect(x1, ry, rw - (x1 - rx), rh, d_data->colors[NUM_COLORS - 1]);
240
<a name="l00246"></a>00246
241
<a name="l00247"></a>00247 <span class="comment">//</span>
242
<a name="l00248"></a>00248 <span class="comment">// draw internal border</span>
243
<a name="l00249"></a>00249 <span class="comment">//</span>
244
<a name="l00250"></a>00250 p->setPen(lightPen);
245
<a name="l00251"></a>00251 ry = r.y() + d_data->intBorder / 2;
246
<a name="l00252"></a>00252 p->drawLine(r.x(), ry, r.x() + r.width() , ry);
247
<a name="l00253"></a>00253
248
<a name="l00254"></a>00254 p->setPen(darkPen);
249
<a name="l00255"></a>00255 ry = r.y() + r.height() - (d_data->intBorder - d_data->intBorder / 2);
250
<a name="l00256"></a>00256 p->drawLine(r.x(), ry , r.x() + r.width(), ry);
251
<a name="l00257"></a>00257 }
252
<a name="l00258"></a>00258 <span class="keywordflow">else</span> <span class="comment">// Qt::Vertical</span>
253
<a name="l00259"></a>00259 {
254
<a name="l00260"></a>00260 <span class="keywordtype">int</span> rx = r.x() + d_data->intBorder;
255
<a name="l00261"></a>00261 <span class="keyword">const</span> <span class="keywordtype">int</span> ry = r.y();
256
<a name="l00262"></a>00262 <span class="keyword">const</span> <span class="keywordtype">int</span> rh = r.height();
257
<a name="l00263"></a>00263 <span class="keyword">const</span> <span class="keywordtype">int</span> rw = r.width() - 2 * d_data->intBorder;
258
<a name="l00264"></a>00264
259
<a name="l00265"></a>00265 <span class="comment">//</span>
260
<a name="l00266"></a>00266 <span class="comment">// draw shaded background</span>
261
<a name="l00267"></a>00267 <span class="comment">//</span>
262
<a name="l00268"></a>00268 <span class="keywordtype">int</span> y1 = ry;
263
<a name="l00269"></a>00269 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 1; i < nFields; i++ )
264
<a name="l00270"></a>00270 {
265
<a name="l00271"></a>00271 <span class="keyword">const</span> <span class="keywordtype">int</span> y2 = ry + (rh * i) / nFields;
266
<a name="l00272"></a>00272 p->fillRect(rx, y1, rw, y2-y1 + 1, d_data->colors[qwtAbs(i-hiPos)]);
267
<a name="l00273"></a>00273 y1 = y2 + 1;
268
<a name="l00274"></a>00274 }
269
<a name="l00275"></a>00275 p->fillRect(rx, y1, rw, rh - (y1 - ry), d_data->colors[NUM_COLORS - 1]);
270
<a name="l00276"></a>00276
271
<a name="l00277"></a>00277 <span class="comment">//</span>
272
<a name="l00278"></a>00278 <span class="comment">// draw internal borders</span>
273
<a name="l00279"></a>00279 <span class="comment">//</span>
274
<a name="l00280"></a>00280 p->setPen(lightPen);
275
<a name="l00281"></a>00281 rx = r.x() + d_data->intBorder / 2;
276
<a name="l00282"></a>00282 p->drawLine(rx, r.y(), rx, r.y() + r.height());
277
<a name="l00283"></a>00283
278
<a name="l00284"></a>00284 p->setPen(darkPen);
279
<a name="l00285"></a>00285 rx = r.x() + r.width() - (d_data->intBorder - d_data->intBorder / 2);
280
<a name="l00286"></a>00286 p->drawLine(rx, r.y(), rx , r.y() + r.height());
281
<a name="l00287"></a>00287 }
282
<a name="l00288"></a>00288
283
<a name="l00289"></a>00289 p->restore();
284
<a name="l00290"></a>00290 }
285
<a name="l00291"></a>00291
286
<a name="l00292"></a>00292
287
<a name="l00304"></a><a class="code" href="class_qwt_wheel.html#3bf43e42e715577f05be9525be1a8e0e">00304</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#3bf43e42e715577f05be9525be1a8e0e">QwtWheel::setTotalAngle</a>(<span class="keywordtype">double</span> angle)
288
<a name="l00305"></a>00305 {
289
<a name="l00306"></a>00306 <span class="keywordflow">if</span> ( angle < 0.0 )
290
<a name="l00307"></a>00307 angle = 0.0;
291
<a name="l00308"></a>00308
292
<a name="l00309"></a>00309 d_data->totalAngle = angle;
293
<a name="l00310"></a>00310 update();
294
<a name="l00311"></a>00311 }
295
<a name="l00312"></a>00312
296
<a name="l00313"></a><a class="code" href="class_qwt_wheel.html#e88b6f36175c8af955fda61b2874c4d8">00313</a> <span class="keywordtype">double</span> <a class="code" href="class_qwt_wheel.html#e88b6f36175c8af955fda61b2874c4d8">QwtWheel::totalAngle</a>()<span class="keyword"> const </span>
297
<a name="l00314"></a>00314 <span class="keyword"></span>{
298
<a name="l00315"></a>00315 <span class="keywordflow">return</span> d_data->totalAngle;
299
<a name="l00316"></a>00316 }
300
<a name="l00317"></a>00317
301
<a name="l00325"></a><a class="code" href="class_qwt_wheel.html#cae74c8161fd1df728f26253dd1defa8">00325</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#cae74c8161fd1df728f26253dd1defa8">QwtWheel::setOrientation</a>(Qt::Orientation o)
302
<a name="l00326"></a>00326 {
303
<a name="l00327"></a>00327 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_abstract_slider.html#5191a5ae69ab34e24463d23a32dbd02f">orientation</a>() == o )
304
<a name="l00328"></a>00328 <span class="keywordflow">return</span>;
305
<a name="l00329"></a>00329
306
<a name="l00330"></a>00330 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
307
<a name="l00331"></a>00331 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( !testAttribute(Qt::WA_WState_OwnSizePolicy) )
308
<a name="l00332"></a>00332 <span class="preprocessor">#else</span>
309
<a name="l00333"></a>00333 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( !testWState( WState_OwnSizePolicy ) )
310
<a name="l00334"></a>00334 <span class="preprocessor">#endif</span>
311
<a name="l00335"></a>00335 <span class="preprocessor"></span> {
312
<a name="l00336"></a>00336 QSizePolicy sp = sizePolicy();
313
<a name="l00337"></a>00337 sp.transpose();
314
<a name="l00338"></a>00338 setSizePolicy(sp);
315
<a name="l00339"></a>00339
316
<a name="l00340"></a>00340 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
317
<a name="l00341"></a>00341 <span class="preprocessor"></span> setAttribute(Qt::WA_WState_OwnSizePolicy, <span class="keyword">false</span>);
318
<a name="l00342"></a>00342 <span class="preprocessor">#else</span>
319
<a name="l00343"></a>00343 <span class="preprocessor"></span> clearWState( WState_OwnSizePolicy );
320
<a name="l00344"></a>00344 <span class="preprocessor">#endif</span>
321
<a name="l00345"></a>00345 <span class="preprocessor"></span> }
322
<a name="l00346"></a>00346
323
<a name="l00347"></a>00347 <a class="code" href="class_qwt_abstract_slider.html#6b0fdc50bfbb0a8bb40f0dc6bf493b2c">QwtAbstractSlider::setOrientation</a>(o);
324
<a name="l00348"></a>00348 <a class="code" href="class_qwt_wheel.html#03a6adc4f6516143501c8114f164d47c">layoutWheel</a>();
325
<a name="l00349"></a>00349 }
326
<a name="l00350"></a>00350
327
<a name="l00359"></a><a class="code" href="class_qwt_wheel.html#d90821d39ff243db547a1c9b0b0ef545">00359</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#d90821d39ff243db547a1c9b0b0ef545">QwtWheel::setViewAngle</a>(<span class="keywordtype">double</span> angle)
328
<a name="l00360"></a>00360 {
329
<a name="l00361"></a>00361 d_data->viewAngle = qwtLim( angle, 10.0, 175.0 );
330
<a name="l00362"></a>00362 update();
331
<a name="l00363"></a>00363 }
332
<a name="l00364"></a>00364
333
<a name="l00365"></a><a class="code" href="class_qwt_wheel.html#81f3e69d4b9cc5badc514d9d74c40f3b">00365</a> <span class="keywordtype">double</span> <a class="code" href="class_qwt_wheel.html#81f3e69d4b9cc5badc514d9d74c40f3b">QwtWheel::viewAngle</a>()<span class="keyword"> const </span>
334
<a name="l00366"></a>00366 <span class="keyword"></span>{
335
<a name="l00367"></a>00367 <span class="keywordflow">return</span> d_data->viewAngle;
336
<a name="l00368"></a>00368 }
337
<a name="l00369"></a>00369
338
<a name="l00375"></a><a class="code" href="class_qwt_wheel.html#d1feb5d4c2a9b410c4d5d108a5630904">00375</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#d1feb5d4c2a9b410c4d5d108a5630904">QwtWheel::drawWheel</a>( QPainter *p, <span class="keyword">const</span> QRect &r )
339
<a name="l00376"></a>00376 {
340
<a name="l00377"></a>00377 <span class="comment">//</span>
341
<a name="l00378"></a>00378 <span class="comment">// draw background gradient</span>
342
<a name="l00379"></a>00379 <span class="comment">//</span>
343
<a name="l00380"></a>00380 <a class="code" href="class_qwt_wheel.html#33b95a78f006f36fee8dafea9531afa9">drawWheelBackground</a>( p, r );
344
<a name="l00381"></a>00381
345
<a name="l00382"></a>00382 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_double_range.html#dc07a0603792664d8400e3ba3c3a8f3a">maxValue</a>() == <a class="code" href="class_qwt_double_range.html#d4cdcc335facc9cdcc12411ad0274169">minValue</a>() || d_data->totalAngle == 0.0 )
346
<a name="l00383"></a>00383 <span class="keywordflow">return</span>;
347
<a name="l00384"></a>00384
348
<a name="l00385"></a>00385 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
349
<a name="l00386"></a>00386 <span class="preprocessor"></span> <span class="keyword">const</span> QColor light = colorGroup().light();
350
<a name="l00387"></a>00387 <span class="keyword">const</span> QColor dark = colorGroup().dark();
351
<a name="l00388"></a>00388 <span class="preprocessor">#else</span>
352
<a name="l00389"></a>00389 <span class="preprocessor"></span> <span class="keyword">const</span> QColor light = palette().color(QPalette::Light);
353
<a name="l00390"></a>00390 <span class="keyword">const</span> QColor dark = palette().color(QPalette::Dark);
354
<a name="l00391"></a>00391 <span class="preprocessor">#endif</span>
355
<a name="l00392"></a>00392 <span class="preprocessor"></span>
356
<a name="l00393"></a>00393 <span class="keyword">const</span> <span class="keywordtype">double</span> sign = (<a class="code" href="class_qwt_double_range.html#d4cdcc335facc9cdcc12411ad0274169">minValue</a>() < <a class="code" href="class_qwt_double_range.html#dc07a0603792664d8400e3ba3c3a8f3a">maxValue</a>()) ? 1.0 : -1.0;
357
<a name="l00394"></a>00394 <span class="keywordtype">double</span> cnvFactor = qwtAbs(d_data->totalAngle / (<a class="code" href="class_qwt_double_range.html#dc07a0603792664d8400e3ba3c3a8f3a">maxValue</a>() - <a class="code" href="class_qwt_double_range.html#d4cdcc335facc9cdcc12411ad0274169">minValue</a>()));
358
<a name="l00395"></a>00395 <span class="keyword">const</span> <span class="keywordtype">double</span> halfIntv = 0.5 * d_data->viewAngle / cnvFactor;
359
<a name="l00396"></a>00396 <span class="keyword">const</span> <span class="keywordtype">double</span> loValue = <a class="code" href="class_qwt_double_range.html#48f21cecc0cbd10f18b234d5bbe55faf">value</a>() - halfIntv;
360
<a name="l00397"></a>00397 <span class="keyword">const</span> <span class="keywordtype">double</span> hiValue = <a class="code" href="class_qwt_double_range.html#48f21cecc0cbd10f18b234d5bbe55faf">value</a>() + halfIntv;
361
<a name="l00398"></a>00398 <span class="keyword">const</span> <span class="keywordtype">double</span> tickWidth = 360.0 / double(d_data->tickCnt) / cnvFactor;
362
<a name="l00399"></a>00399 <span class="keyword">const</span> <span class="keywordtype">double</span> sinArc = sin(d_data->viewAngle * M_PI / 360.0);
363
<a name="l00400"></a>00400 cnvFactor *= M_PI / 180.0;
364
<a name="l00401"></a>00401
365
<a name="l00402"></a>00402
366
<a name="l00403"></a>00403 <span class="comment">//</span>
367
<a name="l00404"></a>00404 <span class="comment">// draw grooves</span>
368
<a name="l00405"></a>00405 <span class="comment">//</span>
369
<a name="l00406"></a>00406 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_abstract_slider.html#5191a5ae69ab34e24463d23a32dbd02f">orientation</a>() == Qt::Horizontal )
370
<a name="l00407"></a>00407 {
371
<a name="l00408"></a>00408 <span class="keyword">const</span> <span class="keywordtype">double</span> halfSize = double(r.width()) * 0.5;
372
<a name="l00409"></a>00409
373
<a name="l00410"></a>00410 <span class="keywordtype">int</span> l1 = r.y() + d_data->intBorder;
374
<a name="l00411"></a>00411 <span class="keywordtype">int</span> l2 = r.y() + r.height() - d_data->intBorder - 1;
375
<a name="l00412"></a>00412
376
<a name="l00413"></a>00413 <span class="comment">// draw one point over the border if border > 1</span>
377
<a name="l00414"></a>00414 <span class="keywordflow">if</span> ( d_data->intBorder > 1 )
378
<a name="l00415"></a>00415 {
379
<a name="l00416"></a>00416 l1 --;
380
<a name="l00417"></a>00417 l2 ++;
381
<a name="l00418"></a>00418 }
382
<a name="l00419"></a>00419
383
<a name="l00420"></a>00420 <span class="keyword">const</span> <span class="keywordtype">int</span> maxpos = r.x() + r.width() - 2;
384
<a name="l00421"></a>00421 <span class="keyword">const</span> <span class="keywordtype">int</span> minpos = r.x() + 2;
385
<a name="l00422"></a>00422
386
<a name="l00423"></a>00423 <span class="comment">//</span>
387
<a name="l00424"></a>00424 <span class="comment">// draw tick marks</span>
388
<a name="l00425"></a>00425 <span class="comment">//</span>
389
<a name="l00426"></a>00426 <span class="keywordflow">for</span> ( <span class="keywordtype">double</span> tickValue = ceil(loValue / tickWidth) * tickWidth;
390
<a name="l00427"></a>00427 tickValue < hiValue; tickValue += tickWidth )
391
<a name="l00428"></a>00428 {
392
<a name="l00429"></a>00429 <span class="comment">//</span>
393
<a name="l00430"></a>00430 <span class="comment">// calculate position</span>
394
<a name="l00431"></a>00431 <span class="comment">//</span>
395
<a name="l00432"></a>00432 <span class="keyword">const</span> <span class="keywordtype">int</span> tickPos = r.x() + r.width()
396
<a name="l00433"></a>00433 - int( halfSize
397
<a name="l00434"></a>00434 * (sinArc + sign * sin((tickValue - <a class="code" href="class_qwt_double_range.html#48f21cecc0cbd10f18b234d5bbe55faf">value</a>()) * cnvFactor))
398
<a name="l00435"></a>00435 / sinArc);
399
<a name="l00436"></a>00436 <span class="comment">//</span>
400
<a name="l00437"></a>00437 <span class="comment">// draw vertical line</span>
401
<a name="l00438"></a>00438 <span class="comment">//</span>
402
<a name="l00439"></a>00439 <span class="keywordflow">if</span> ( (tickPos <= maxpos) && (tickPos > minpos) )
403
<a name="l00440"></a>00440 {
404
<a name="l00441"></a>00441 p->setPen(dark);
405
<a name="l00442"></a>00442 p->drawLine(tickPos -1 , l1, tickPos - 1, l2 );
406
<a name="l00443"></a>00443 p->setPen(light);
407
<a name="l00444"></a>00444 p->drawLine(tickPos, l1, tickPos, l2);
408
<a name="l00445"></a>00445 }
409
<a name="l00446"></a>00446 }
410
<a name="l00447"></a>00447 }
411
<a name="l00448"></a>00448 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_abstract_slider.html#5191a5ae69ab34e24463d23a32dbd02f">orientation</a>() == Qt::Vertical )
412
<a name="l00449"></a>00449 {
413
<a name="l00450"></a>00450 <span class="keyword">const</span> <span class="keywordtype">double</span> halfSize = double(r.height()) * 0.5;
414
<a name="l00451"></a>00451
415
<a name="l00452"></a>00452 <span class="keywordtype">int</span> l1 = r.x() + d_data->intBorder;
416
<a name="l00453"></a>00453 <span class="keywordtype">int</span> l2 = r.x() + r.width() - d_data->intBorder - 1;
417
<a name="l00454"></a>00454
418
<a name="l00455"></a>00455 <span class="keywordflow">if</span> ( d_data->intBorder > 1 )
419
<a name="l00456"></a>00456 {
420
<a name="l00457"></a>00457 l1--;
421
<a name="l00458"></a>00458 l2++;
422
<a name="l00459"></a>00459 }
423
<a name="l00460"></a>00460
424
<a name="l00461"></a>00461 <span class="keyword">const</span> <span class="keywordtype">int</span> maxpos = r.y() + r.height() - 2;
425
<a name="l00462"></a>00462 <span class="keyword">const</span> <span class="keywordtype">int</span> minpos = r.y() + 2;
426
<a name="l00463"></a>00463
427
<a name="l00464"></a>00464 <span class="comment">//</span>
428
<a name="l00465"></a>00465 <span class="comment">// draw tick marks</span>
429
<a name="l00466"></a>00466 <span class="comment">//</span>
430
<a name="l00467"></a>00467 <span class="keywordflow">for</span> ( <span class="keywordtype">double</span> tickValue = ceil(loValue / tickWidth) * tickWidth;
431
<a name="l00468"></a>00468 tickValue < hiValue; tickValue += tickWidth )
432
<a name="l00469"></a>00469 {
433
<a name="l00470"></a>00470
434
<a name="l00471"></a>00471 <span class="comment">//</span>
435
<a name="l00472"></a>00472 <span class="comment">// calculate position</span>
436
<a name="l00473"></a>00473 <span class="comment">//</span>
437
<a name="l00474"></a>00474 <span class="keyword">const</span> <span class="keywordtype">int</span> tickPos = r.y() + int( halfSize *
438
<a name="l00475"></a>00475 (sinArc + sign * sin((tickValue - <a class="code" href="class_qwt_double_range.html#48f21cecc0cbd10f18b234d5bbe55faf">value</a>()) * cnvFactor))
439
<a name="l00476"></a>00476 / sinArc);
440
<a name="l00477"></a>00477
441
<a name="l00478"></a>00478 <span class="comment">//</span>
442
<a name="l00479"></a>00479 <span class="comment">// draw horizontal line</span>
443
<a name="l00480"></a>00480 <span class="comment">//</span>
444
<a name="l00481"></a>00481 <span class="keywordflow">if</span> ( (tickPos <= maxpos) && (tickPos > minpos) )
445
<a name="l00482"></a>00482 {
446
<a name="l00483"></a>00483 p->setPen(dark);
447
<a name="l00484"></a>00484 p->drawLine(l1, tickPos - 1 ,l2, tickPos - 1);
448
<a name="l00485"></a>00485 p->setPen(light);
449
<a name="l00486"></a>00486 p->drawLine(l1, tickPos, l2, tickPos);
450
<a name="l00487"></a>00487 }
451
<a name="l00488"></a>00488 }
452
<a name="l00489"></a>00489 }
453
<a name="l00490"></a>00490 }
454
<a name="l00491"></a>00491
455
<a name="l00492"></a>00492
456
<a name="l00494"></a><a class="code" href="class_qwt_wheel.html#6bb116593e63e724059c894a6fc41097">00494</a> <span class="keywordtype">double</span> <a class="code" href="class_qwt_wheel.html#6bb116593e63e724059c894a6fc41097">QwtWheel::getValue</a>( <span class="keyword">const</span> QPoint &p )
457
<a name="l00495"></a>00495 {
458
<a name="l00496"></a>00496 <span class="comment">// The reference position is arbitrary, but the</span>
459
<a name="l00497"></a>00497 <span class="comment">// sign of the offset is important</span>
460
<a name="l00498"></a>00498 <span class="keywordtype">int</span> w, dx;
461
<a name="l00499"></a>00499 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_abstract_slider.html#5191a5ae69ab34e24463d23a32dbd02f">orientation</a>() == Qt::Vertical )
462
<a name="l00500"></a>00500 {
463
<a name="l00501"></a>00501 w = d_data->sliderRect.height();
464
<a name="l00502"></a>00502 dx = d_data->sliderRect.y() - p.y();
465
<a name="l00503"></a>00503 }
466
<a name="l00504"></a>00504 <span class="keywordflow">else</span>
467
<a name="l00505"></a>00505 {
468
<a name="l00506"></a>00506 w = d_data->sliderRect.width();
469
<a name="l00507"></a>00507 dx = p.x() - d_data->sliderRect.x();
470
<a name="l00508"></a>00508 }
471
<a name="l00509"></a>00509
472
<a name="l00510"></a>00510 <span class="comment">// w pixels is an arc of viewAngle degrees,</span>
473
<a name="l00511"></a>00511 <span class="comment">// so we convert change in pixels to change in angle</span>
474
<a name="l00512"></a>00512 <span class="keyword">const</span> <span class="keywordtype">double</span> ang = dx * d_data->viewAngle / w;
475
<a name="l00513"></a>00513
476
<a name="l00514"></a>00514 <span class="comment">// value range maps to totalAngle degrees,</span>
477
<a name="l00515"></a>00515 <span class="comment">// so convert the change in angle to a change in value</span>
478
<a name="l00516"></a>00516 <span class="keyword">const</span> <span class="keywordtype">double</span> val = ang * ( <a class="code" href="class_qwt_double_range.html#dc07a0603792664d8400e3ba3c3a8f3a">maxValue</a>() - <a class="code" href="class_qwt_double_range.html#d4cdcc335facc9cdcc12411ad0274169">minValue</a>() ) / d_data->totalAngle;
479
<a name="l00517"></a>00517
480
<a name="l00518"></a>00518 <span class="comment">// Note, range clamping and rasterizing to step is automatically</span>
481
<a name="l00519"></a>00519 <span class="comment">// handled by QwtAbstractSlider, so we simply return the change in value</span>
482
<a name="l00520"></a>00520 <span class="keywordflow">return</span> val;
483
<a name="l00521"></a>00521 }
484
<a name="l00522"></a>00522
485
<a name="l00524"></a><a class="code" href="class_qwt_wheel.html#f4fda101be95e70803127cc94fc1e337">00524</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#f4fda101be95e70803127cc94fc1e337">QwtWheel::resizeEvent</a>(QResizeEvent *)
486
<a name="l00525"></a>00525 {
487
<a name="l00526"></a>00526 <a class="code" href="class_qwt_wheel.html#03a6adc4f6516143501c8114f164d47c">layoutWheel</a>( <span class="keyword">false</span> );
488
<a name="l00527"></a>00527 }
489
<a name="l00528"></a>00528
490
<a name="l00530"></a>00530 <span class="comment">// the current rect and fonts.</span>
491
<a name="l00531"></a>00531 <span class="comment">// \param update_geometry notify the layout system and call update</span>
492
<a name="l00532"></a>00532 <span class="comment">// to redraw the scale</span>
493
<a name="l00533"></a><a class="code" href="class_qwt_wheel.html#03a6adc4f6516143501c8114f164d47c">00533</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#03a6adc4f6516143501c8114f164d47c">QwtWheel::layoutWheel</a>( <span class="keywordtype">bool</span> update_geometry )
494
<a name="l00534"></a>00534 {
495
<a name="l00535"></a>00535 <span class="keyword">const</span> QRect r = this->rect();
496
<a name="l00536"></a>00536 d_data->sliderRect.setRect(r.x() + d_data->borderWidth, r.y() + d_data->borderWidth,
497
<a name="l00537"></a>00537 r.width() - 2*d_data->borderWidth, r.height() - 2*d_data->borderWidth);
498
<a name="l00538"></a>00538
499
<a name="l00539"></a>00539 <span class="keywordflow">if</span> ( update_geometry )
500
<a name="l00540"></a>00540 {
501
<a name="l00541"></a>00541 updateGeometry();
502
<a name="l00542"></a>00542 update();
503
<a name="l00543"></a>00543 }
504
<a name="l00544"></a>00544 }
505
<a name="l00545"></a>00545
506
<a name="l00547"></a><a class="code" href="class_qwt_wheel.html#c2bc645171e2c1dd34acff3d122ab4ba">00547</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#c2bc645171e2c1dd34acff3d122ab4ba">QwtWheel::paintEvent</a>(QPaintEvent *e)
507
<a name="l00548"></a>00548 {
508
<a name="l00549"></a>00549 <span class="comment">// Use double-buffering</span>
509
<a name="l00550"></a>00550 <span class="keyword">const</span> QRect &ur = e->rect();
510
<a name="l00551"></a>00551 <span class="keywordflow">if</span> ( ur.isValid() )
511
<a name="l00552"></a>00552 {
512
<a name="l00553"></a>00553 #<span class="keywordflow">if</span> QT_VERSION < 0x040000
513
<a name="l00554"></a>00554 QwtPaintBuffer paintBuffer(<span class="keyword">this</span>, ur);
514
<a name="l00555"></a>00555 <a class="code" href="class_qwt_wheel.html#e08370e0e6a82ab3539d073ced3bc313">draw</a>(paintBuffer.painter(), ur);
515
<a name="l00556"></a>00556 <span class="preprocessor">#else</span>
516
<a name="l00557"></a>00557 <span class="preprocessor"></span> QPainter painter(<span class="keyword">this</span>);
517
<a name="l00558"></a>00558 <a class="code" href="class_qwt_wheel.html#e08370e0e6a82ab3539d073ced3bc313">draw</a>(&painter, ur);
518
<a name="l00559"></a>00559 <span class="preprocessor">#endif</span>
519
<a name="l00560"></a>00560 <span class="preprocessor"></span> }
520
<a name="l00561"></a>00561 }
521
<a name="l00562"></a>00562
522
<a name="l00564"></a><a class="code" href="class_qwt_wheel.html#e08370e0e6a82ab3539d073ced3bc313">00564</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#e08370e0e6a82ab3539d073ced3bc313">QwtWheel::draw</a>(QPainter *painter, <span class="keyword">const</span> QRect&)
523
<a name="l00565"></a>00565 {
524
<a name="l00566"></a>00566 qDrawShadePanel( painter, rect().x(), rect().y(),
525
<a name="l00567"></a>00567 rect().width(), rect().height(),
526
<a name="l00568"></a>00568 #<span class="keywordflow">if</span> QT_VERSION < 0x040000
527
<a name="l00569"></a>00569 colorGroup(),
528
<a name="l00570"></a>00570 #<span class="keywordflow">else</span>
529
<a name="l00571"></a>00571 palette(),
530
<a name="l00572"></a>00572 #endif
531
<a name="l00573"></a>00573 <span class="keyword">true</span>, d_data->borderWidth );
532
<a name="l00574"></a>00574
533
<a name="l00575"></a>00575 <a class="code" href="class_qwt_wheel.html#d1feb5d4c2a9b410c4d5d108a5630904">drawWheel</a>( painter, d_data->sliderRect );
534
<a name="l00576"></a>00576
535
<a name="l00577"></a>00577 <span class="keywordflow">if</span> ( hasFocus() )
536
<a name="l00578"></a>00578 <a class="code" href="class_qwt_painter.html#bb6bbb26f325e33236c5292107e44102">QwtPainter::drawFocusRect</a>(painter, <span class="keyword">this</span>);
537
<a name="l00579"></a>00579 }
538
<a name="l00580"></a>00580
539
<a name="l00582"></a><a class="code" href="class_qwt_wheel.html#0fa3d4f4189f7bb6ee0944cd30060eb5">00582</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#0fa3d4f4189f7bb6ee0944cd30060eb5">QwtWheel::valueChange</a>()
540
<a name="l00583"></a>00583 {
541
<a name="l00584"></a>00584 <a class="code" href="class_qwt_abstract_slider.html#2f04dc51e4402b51fef3250bcc99dc7f">QwtAbstractSlider::valueChange</a>();
542
<a name="l00585"></a>00585 update();
543
<a name="l00586"></a>00586 }
544
<a name="l00587"></a>00587
545
<a name="l00588"></a>00588
546
<a name="l00596"></a><a class="code" href="class_qwt_wheel.html#2655146c5d017756566691e8142b8fcd">00596</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#2655146c5d017756566691e8142b8fcd">QwtWheel::getScrollMode</a>( <span class="keyword">const</span> QPoint &p, <span class="keywordtype">int</span> &scrollMode, <span class="keywordtype">int</span> &direction)
547
<a name="l00597"></a>00597 {
548
<a name="l00598"></a>00598 <span class="keywordflow">if</span> ( d_data->sliderRect.contains(p) )
549
<a name="l00599"></a>00599 scrollMode = ScrMouse;
550
<a name="l00600"></a>00600 <span class="keywordflow">else</span>
551
<a name="l00601"></a>00601 scrollMode = ScrNone;
552
<a name="l00602"></a>00602
553
<a name="l00603"></a>00603 direction = 0;
554
<a name="l00604"></a>00604 }
555
<a name="l00605"></a>00605
556
<a name="l00612"></a><a class="code" href="class_qwt_wheel.html#811ef1cf04a3d39eb017fcfe808bbd4f">00612</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#811ef1cf04a3d39eb017fcfe808bbd4f">QwtWheel::setMass</a>(<span class="keywordtype">double</span> val)
557
<a name="l00613"></a>00613 {
558
<a name="l00614"></a>00614 <a class="code" href="class_qwt_abstract_slider.html#305b137fe4dd80cba307fe1b4bd46272">QwtAbstractSlider::setMass</a>(val);
559
<a name="l00615"></a>00615 }
560
<a name="l00616"></a>00616
561
<a name="l00624"></a><a class="code" href="class_qwt_wheel.html#fc5416139e1c962b950a8d48fe465209">00624</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#fc5416139e1c962b950a8d48fe465209">QwtWheel::setWheelWidth</a>(<span class="keywordtype">int</span> w)
562
<a name="l00625"></a>00625 {
563
<a name="l00626"></a>00626 d_data->wheelWidth = w;
564
<a name="l00627"></a>00627 <a class="code" href="class_qwt_wheel.html#03a6adc4f6516143501c8114f164d47c">layoutWheel</a>();
565
<a name="l00628"></a>00628 }
566
<a name="l00629"></a>00629
567
<a name="l00633"></a><a class="code" href="class_qwt_wheel.html#e57b5aa2da03df6c0ac78b896a91e1ba">00633</a> QSize <a class="code" href="class_qwt_wheel.html#e57b5aa2da03df6c0ac78b896a91e1ba">QwtWheel::sizeHint</a>()<span class="keyword"> const</span>
568
<a name="l00634"></a>00634 <span class="keyword"></span>{
569
<a name="l00635"></a>00635 <span class="keywordflow">return</span> <a class="code" href="class_qwt_wheel.html#da93a1ea593834beb546474bca0991cb">minimumSizeHint</a>();
570
<a name="l00636"></a>00636 }
571
<a name="l00637"></a>00637
572
<a name="l00642"></a><a class="code" href="class_qwt_wheel.html#da93a1ea593834beb546474bca0991cb">00642</a> QSize <a class="code" href="class_qwt_wheel.html#da93a1ea593834beb546474bca0991cb">QwtWheel::minimumSizeHint</a>()<span class="keyword"> const</span>
573
<a name="l00643"></a>00643 <span class="keyword"></span>{
574
<a name="l00644"></a>00644 QSize sz( 3*d_data->wheelWidth + 2*d_data->borderWidth,
575
<a name="l00645"></a>00645 d_data->wheelWidth + 2*d_data->borderWidth );
576
<a name="l00646"></a>00646 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_abstract_slider.html#5191a5ae69ab34e24463d23a32dbd02f">orientation</a>() != Qt::Horizontal )
577
<a name="l00647"></a>00647 sz.transpose();
578
<a name="l00648"></a>00648 <span class="keywordflow">return</span> sz;
579
<a name="l00649"></a>00649 }
580
<a name="l00650"></a>00650
581
<a name="l00654"></a><a class="code" href="class_qwt_wheel.html#358aae0c56eda43f5c9fdb74b89de60a">00654</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_wheel.html#358aae0c56eda43f5c9fdb74b89de60a">QwtWheel::paletteChange</a>( <span class="keyword">const</span> QPalette& )
582
<a name="l00655"></a>00655 {
583
<a name="l00656"></a>00656 update();
584
<a name="l00657"></a>00657 }
585
<a name="l00658"></a>00658
586
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu May 1 15:44:10 2008 for Qwt User's Guide by
587
<a href="http://www.doxygen.org/index.html">
588
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.0 </small></address>
added
removed
qwt-5.1.0/doc/html/qwt__wheel_8cpp-source.html
