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<h1>qwt_abstract_scale_draw.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</span>
16
<a name="l00002"></a>00002 <span class="comment"> * Qwt Widget Library</span>
17
<a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 1997 Josef Wilgen</span>
18
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2002 Uwe Rathmann</span>
19
<a name="l00005"></a>00005 <span class="comment"> * </span>
20
<a name="l00006"></a>00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
21
<a name="l00007"></a>00007 <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span>
22
<a name="l00008"></a>00008 <span class="comment"> *****************************************************************************/</span>
23
<a name="l00009"></a>00009
24
<a name="l00010"></a>00010 <span class="comment">// vim: expandtab</span>
25
<a name="l00011"></a>00011
26
<a name="l00012"></a>00012 <span class="preprocessor">#include <qpainter.h></span>
27
<a name="l00013"></a>00013 <span class="preprocessor">#include <qpalette.h></span>
28
<a name="l00014"></a>00014 <span class="preprocessor">#include <qmap.h></span>
29
<a name="l00015"></a>00015 <span class="preprocessor">#include "qwt_math.h"</span>
30
<a name="l00016"></a>00016 <span class="preprocessor">#include "qwt_text.h"</span>
31
<a name="l00017"></a>00017 <span class="preprocessor">#include "qwt_painter.h"</span>
32
<a name="l00018"></a>00018 <span class="preprocessor">#include "qwt_scale_map.h"</span>
33
<a name="l00019"></a>00019 <span class="preprocessor">#include "qwt_scale_draw.h"</span>
34
<a name="l00020"></a>00020
35
<a name="l00021"></a>00021 <span class="keyword">class </span>QwtAbstractScaleDraw::PrivateData
36
<a name="l00022"></a>00022 {
37
<a name="l00023"></a>00023 <span class="keyword">public</span>:
38
<a name="l00024"></a>00024 PrivateData():
39
<a name="l00025"></a>00025 components(Backbone | Ticks | Labels),
40
<a name="l00026"></a>00026 <a class="code" href="class_qwt_abstract_scale_draw.html#b31323219c1a750adde91470698cfa0f">spacing</a>(4),
41
<a name="l00027"></a>00027 minExtent(0)
42
<a name="l00028"></a>00028 {
43
<a name="l00029"></a>00029 <a class="code" href="class_qwt_abstract_scale_draw.html#d183cd4b9b5b204ca5d264e0f42e06a1">tickLength</a>[QwtScaleDiv::MinorTick] = 4;
44
<a name="l00030"></a>00030 <a class="code" href="class_qwt_abstract_scale_draw.html#d183cd4b9b5b204ca5d264e0f42e06a1">tickLength</a>[QwtScaleDiv::MediumTick] = 6;
45
<a name="l00031"></a>00031 <a class="code" href="class_qwt_abstract_scale_draw.html#d183cd4b9b5b204ca5d264e0f42e06a1">tickLength</a>[QwtScaleDiv::MajorTick] = 8;
46
<a name="l00032"></a>00032 }
47
<a name="l00033"></a>00033
48
<a name="l00034"></a>00034 <span class="keywordtype">int</span> components;
49
<a name="l00035"></a>00035
50
<a name="l00036"></a>00036 <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> <a class="code" href="class_qwt_abstract_scale_draw.html#9777f34effee2395dde92a42ef7902fd">map</a>;
51
<a name="l00037"></a>00037 <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> scldiv;
52
<a name="l00038"></a>00038
53
<a name="l00039"></a>00039 <span class="keywordtype">int</span> <a class="code" href="class_qwt_abstract_scale_draw.html#b31323219c1a750adde91470698cfa0f">spacing</a>;
54
<a name="l00040"></a>00040 <span class="keywordtype">int</span> <a class="code" href="class_qwt_abstract_scale_draw.html#d183cd4b9b5b204ca5d264e0f42e06a1">tickLength</a>[QwtScaleDiv::NTickTypes];
55
<a name="l00041"></a>00041
56
<a name="l00042"></a>00042 <span class="keywordtype">int</span> minExtent;
57
<a name="l00043"></a>00043
58
<a name="l00044"></a>00044 QMap<double, QwtText> labelCache;
59
<a name="l00045"></a>00045 };
60
<a name="l00046"></a>00046
61
<a name="l00054"></a><a class="code" href="class_qwt_abstract_scale_draw.html#19c944664a2e36f06ae71b745fbd442e">00054</a> <a class="code" href="class_qwt_abstract_scale_draw.html#19c944664a2e36f06ae71b745fbd442e">QwtAbstractScaleDraw::QwtAbstractScaleDraw</a>()
62
<a name="l00055"></a>00055 {
63
<a name="l00056"></a>00056 d_data = <span class="keyword">new</span> QwtAbstractScaleDraw::PrivateData;
64
<a name="l00057"></a>00057 }
65
<a name="l00058"></a>00058
66
<a name="l00060"></a><a class="code" href="class_qwt_abstract_scale_draw.html#eac9a71c1aa7f84eb615af72cfbf301c">00060</a> <a class="code" href="class_qwt_abstract_scale_draw.html#19c944664a2e36f06ae71b745fbd442e">QwtAbstractScaleDraw::QwtAbstractScaleDraw</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> &other)
67
<a name="l00061"></a>00061 {
68
<a name="l00062"></a>00062 d_data = <span class="keyword">new</span> QwtAbstractScaleDraw::PrivateData(*other.<a class="code" href="class_qwt_abstract_scale_draw.html#b4435a25242fcf26d3596c3e9d998c17">d_data</a>);
69
<a name="l00063"></a>00063 }
70
<a name="l00064"></a>00064
71
<a name="l00066"></a><a class="code" href="class_qwt_abstract_scale_draw.html#dc4d3f491b28ee39d728a4a4a9cdd494">00066</a> <a class="code" href="class_qwt_abstract_scale_draw.html#dc4d3f491b28ee39d728a4a4a9cdd494">QwtAbstractScaleDraw::~QwtAbstractScaleDraw</a>()
72
<a name="l00067"></a>00067 {
73
<a name="l00068"></a>00068 <span class="keyword">delete</span> d_data;
74
<a name="l00069"></a>00069 }
75
<a name="l00071"></a><a class="code" href="class_qwt_abstract_scale_draw.html#fe5c86bd7ebfd879b0a8b715a7c700d4">00071</a> <a class="code" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> &<a class="code" href="class_qwt_abstract_scale_draw.html#fe5c86bd7ebfd879b0a8b715a7c700d4">QwtAbstractScaleDraw::operator=</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> &other)
76
<a name="l00072"></a>00072 {
77
<a name="l00073"></a>00073 *d_data = *other.<a class="code" href="class_qwt_abstract_scale_draw.html#b4435a25242fcf26d3596c3e9d998c17">d_data</a>;
78
<a name="l00074"></a>00074 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
79
<a name="l00075"></a>00075 }
80
<a name="l00076"></a>00076
81
<a name="l00085"></a><a class="code" href="class_qwt_abstract_scale_draw.html#f975410588db6103f281e49d0b43c6a6">00085</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale_draw.html#f975410588db6103f281e49d0b43c6a6">QwtAbstractScaleDraw::enableComponent</a>(
82
<a name="l00086"></a>00086 <a class="code" href="class_qwt_abstract_scale_draw.html#26215d06a4d48adf401d0aa05d4193c5">ScaleComponent</a> component, <span class="keywordtype">bool</span> enable)
83
<a name="l00087"></a>00087 {
84
<a name="l00088"></a>00088 <span class="keywordflow">if</span> ( enable )
85
<a name="l00089"></a>00089 d_data->components |= component;
86
<a name="l00090"></a>00090 <span class="keywordflow">else</span>
87
<a name="l00091"></a>00091 d_data->components &= ~component;
88
<a name="l00092"></a>00092 }
89
<a name="l00093"></a>00093
90
<a name="l00098"></a><a class="code" href="class_qwt_abstract_scale_draw.html#95d74d9eaa5520754295efb33a4db50f">00098</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_abstract_scale_draw.html#95d74d9eaa5520754295efb33a4db50f">QwtAbstractScaleDraw::hasComponent</a>(<a class="code" href="class_qwt_abstract_scale_draw.html#26215d06a4d48adf401d0aa05d4193c5">ScaleComponent</a> component)<span class="keyword"> const</span>
91
<a name="l00099"></a>00099 <span class="keyword"></span>{
92
<a name="l00100"></a>00100 <span class="keywordflow">return</span> (d_data->components & component);
93
<a name="l00101"></a>00101 }
94
<a name="l00102"></a>00102
95
<a name="l00107"></a><a class="code" href="class_qwt_abstract_scale_draw.html#4399aac94a294f5ed6c52114dde00d2f">00107</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale_draw.html#4399aac94a294f5ed6c52114dde00d2f">QwtAbstractScaleDraw::setScaleDiv</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> &sd)
96
<a name="l00108"></a>00108 {
97
<a name="l00109"></a>00109 d_data->scldiv = sd;
98
<a name="l00110"></a>00110 d_data->map.setScaleInterval(sd.<a class="code" href="class_qwt_scale_div.html#a3b6edf00144cdc0a59fbc91784faec3">lBound</a>(), sd.<a class="code" href="class_qwt_scale_div.html#94287d3de0b107e66beea42cfeb1caef">hBound</a>());
99
<a name="l00111"></a>00111 d_data->labelCache.clear();
100
<a name="l00112"></a>00112 }
101
<a name="l00113"></a>00113
102
<a name="l00118"></a><a class="code" href="class_qwt_abstract_scale_draw.html#0011367eb32519070e6f276ac393dcfb">00118</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale_draw.html#0011367eb32519070e6f276ac393dcfb">QwtAbstractScaleDraw::setTransformation</a>(
103
<a name="l00119"></a>00119 <a class="code" href="class_qwt_scale_transformation.html">QwtScaleTransformation</a> *transformation)
104
<a name="l00120"></a>00120 {
105
<a name="l00121"></a>00121 d_data->map.setTransformation(transformation);
106
<a name="l00122"></a>00122 }
107
<a name="l00123"></a>00123
108
<a name="l00125"></a><a class="code" href="class_qwt_abstract_scale_draw.html#9777f34effee2395dde92a42ef7902fd">00125</a> <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> &<a class="code" href="class_qwt_abstract_scale_draw.html#9777f34effee2395dde92a42ef7902fd">QwtAbstractScaleDraw::map</a>()<span class="keyword"> const</span>
109
<a name="l00126"></a>00126 <span class="keyword"></span>{
110
<a name="l00127"></a>00127 <span class="keywordflow">return</span> d_data->map;
111
<a name="l00128"></a>00128 }
112
<a name="l00129"></a>00129
113
<a name="l00131"></a><a class="code" href="class_qwt_abstract_scale_draw.html#e7488eb63ad73a2e69acb29ff069c904">00131</a> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> &<a class="code" href="class_qwt_abstract_scale_draw.html#e7488eb63ad73a2e69acb29ff069c904">QwtAbstractScaleDraw::scaleMap</a>()
114
<a name="l00132"></a>00132 {
115
<a name="l00133"></a>00133 <span class="keywordflow">return</span> d_data->map;
116
<a name="l00134"></a>00134 }
117
<a name="l00135"></a>00135
118
<a name="l00137"></a><a class="code" href="class_qwt_abstract_scale_draw.html#82510027cd5bee269628c9d6302a19a9">00137</a> <span class="keyword">const</span> <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a>& <a class="code" href="class_qwt_abstract_scale_draw.html#82510027cd5bee269628c9d6302a19a9">QwtAbstractScaleDraw::scaleDiv</a>()<span class="keyword"> const </span>
119
<a name="l00138"></a>00138 <span class="keyword"></span>{
120
<a name="l00139"></a>00139 <span class="keywordflow">return</span> d_data->scldiv;
121
<a name="l00140"></a>00140 }
122
<a name="l00141"></a>00141
123
<a name="l00142"></a>00142 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
124
<a name="l00143"></a>00143 <span class="preprocessor"></span>
125
<a name="l00151"></a>00151 <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale_draw.html#ca3c3a7499112f52616d0ee8518fa5a6">QwtAbstractScaleDraw::draw</a>(QPainter *painter,
126
<a name="l00152"></a>00152 <span class="keyword">const</span> QColorGroup& colorGroup) <span class="keyword">const</span>
127
<a name="l00153"></a>00153
128
<a name="l00154"></a>00154 <span class="preprocessor">#else</span>
129
<a name="l00155"></a>00155 <span class="preprocessor"></span>
130
<a name="l00164"></a><a class="code" href="class_qwt_abstract_scale_draw.html#ca3c3a7499112f52616d0ee8518fa5a6">00164</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale_draw.html#ca3c3a7499112f52616d0ee8518fa5a6">QwtAbstractScaleDraw::draw</a>(QPainter *painter,
131
<a name="l00165"></a>00165 <span class="keyword">const</span> QPalette& palette) <span class="keyword">const</span>
132
<a name="l00166"></a>00166 <span class="preprocessor">#endif</span>
133
<a name="l00167"></a>00167 <span class="preprocessor"></span>{
134
<a name="l00168"></a>00168 <span class="keywordflow">if</span> ( hasComponent(QwtAbstractScaleDraw::Labels) )
135
<a name="l00169"></a>00169 {
136
<a name="l00170"></a>00170 painter->save();
137
<a name="l00171"></a>00171
138
<a name="l00172"></a>00172 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
139
<a name="l00173"></a>00173 <span class="preprocessor"></span> painter->setPen(colorGroup.text()); <span class="comment">// ignore pen style</span>
140
<a name="l00174"></a>00174 <span class="preprocessor">#else</span>
141
<a name="l00175"></a>00175 <span class="preprocessor"></span> painter->setPen(palette.color(QPalette::Text)); <span class="comment">// ignore pen style</span>
142
<a name="l00176"></a>00176 <span class="preprocessor">#endif</span>
143
<a name="l00177"></a>00177 <span class="preprocessor"></span>
144
<a name="l00178"></a>00178 <span class="keyword">const</span> QwtValueList &majorTicks =
145
<a name="l00179"></a>00179 d_data->scldiv.ticks(QwtScaleDiv::MajorTick);
146
<a name="l00180"></a>00180
147
<a name="l00181"></a>00181 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < (int)majorTicks.count(); i++)
148
<a name="l00182"></a>00182 {
149
<a name="l00183"></a>00183 <span class="keyword">const</span> <span class="keywordtype">double</span> v = majorTicks[i];
150
<a name="l00184"></a>00184 <span class="keywordflow">if</span> ( d_data->scldiv.contains(v) )
151
<a name="l00185"></a>00185 drawLabel(painter, majorTicks[i]);
152
<a name="l00186"></a>00186 }
153
<a name="l00187"></a>00187
154
<a name="l00188"></a>00188 painter->restore();
155
<a name="l00189"></a>00189 }
156
<a name="l00190"></a>00190
157
<a name="l00191"></a>00191 <span class="keywordflow">if</span> ( hasComponent(QwtAbstractScaleDraw::Ticks) )
158
<a name="l00192"></a>00192 {
159
<a name="l00193"></a>00193 painter->save();
160
<a name="l00194"></a>00194
161
<a name="l00195"></a>00195 QPen pen = painter->pen();
162
<a name="l00196"></a>00196 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
163
<a name="l00197"></a>00197 <span class="preprocessor"></span> pen.setColor(colorGroup.foreground());
164
<a name="l00198"></a>00198 <span class="preprocessor">#else</span>
165
<a name="l00199"></a>00199 <span class="preprocessor"></span> pen.setColor(palette.color(QPalette::Foreground));
166
<a name="l00200"></a>00200 <span class="preprocessor">#endif</span>
167
<a name="l00201"></a>00201 <span class="preprocessor"></span> painter->setPen(pen);
168
<a name="l00202"></a>00202
169
<a name="l00203"></a>00203 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> tickType = QwtScaleDiv::MinorTick;
170
<a name="l00204"></a>00204 tickType < QwtScaleDiv::NTickTypes; tickType++ )
171
<a name="l00205"></a>00205 {
172
<a name="l00206"></a>00206 <span class="keyword">const</span> QwtValueList &ticks = d_data->scldiv.ticks(tickType);
173
<a name="l00207"></a>00207 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < (int)ticks.count(); i++)
174
<a name="l00208"></a>00208 {
175
<a name="l00209"></a>00209 <span class="keyword">const</span> <span class="keywordtype">double</span> v = ticks[i];
176
<a name="l00210"></a>00210 <span class="keywordflow">if</span> ( d_data->scldiv.contains(v) )
177
<a name="l00211"></a>00211 drawTick(painter, v, d_data->tickLength[tickType]);
178
<a name="l00212"></a>00212 }
179
<a name="l00213"></a>00213 }
180
<a name="l00214"></a>00214
181
<a name="l00215"></a>00215 painter->restore();
182
<a name="l00216"></a>00216 }
183
<a name="l00217"></a>00217
184
<a name="l00218"></a>00218 <span class="keywordflow">if</span> ( hasComponent(QwtAbstractScaleDraw::Backbone) )
185
<a name="l00219"></a>00219 {
186
<a name="l00220"></a>00220 painter->save();
187
<a name="l00221"></a>00221
188
<a name="l00222"></a>00222 QPen pen = painter->pen();
189
<a name="l00223"></a>00223 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
190
<a name="l00224"></a>00224 <span class="preprocessor"></span> pen.setColor(colorGroup.foreground());
191
<a name="l00225"></a>00225 <span class="preprocessor">#else</span>
192
<a name="l00226"></a>00226 <span class="preprocessor"></span> pen.setColor(palette.color(QPalette::Foreground));
193
<a name="l00227"></a>00227 <span class="preprocessor">#endif</span>
194
<a name="l00228"></a>00228 <span class="preprocessor"></span> painter->setPen(pen);
195
<a name="l00229"></a>00229
196
<a name="l00230"></a>00230 drawBackbone(painter);
197
<a name="l00231"></a>00231
198
<a name="l00232"></a>00232 painter->restore();
199
<a name="l00233"></a>00233 }
200
<a name="l00234"></a>00234 }
201
<a name="l00235"></a>00235
202
<a name="l00246"></a><a class="code" href="class_qwt_abstract_scale_draw.html#ed26877e7a6589ba0df1f45a3ed68fc7">00246</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale_draw.html#ed26877e7a6589ba0df1f45a3ed68fc7">QwtAbstractScaleDraw::setSpacing</a>(<span class="keywordtype">int</span> spacing)
203
<a name="l00247"></a>00247 {
204
<a name="l00248"></a>00248 <span class="keywordflow">if</span> ( spacing < 0 )
205
<a name="l00249"></a>00249 spacing = 0;
206
<a name="l00250"></a>00250
207
<a name="l00251"></a>00251 d_data->spacing = spacing;
208
<a name="l00252"></a>00252 }
209
<a name="l00253"></a>00253
210
<a name="l00262"></a><a class="code" href="class_qwt_abstract_scale_draw.html#b31323219c1a750adde91470698cfa0f">00262</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_abstract_scale_draw.html#b31323219c1a750adde91470698cfa0f">QwtAbstractScaleDraw::spacing</a>()<span class="keyword"> const</span>
211
<a name="l00263"></a>00263 <span class="keyword"></span>{
212
<a name="l00264"></a>00264 <span class="keywordflow">return</span> d_data->spacing;
213
<a name="l00265"></a>00265 }
214
<a name="l00266"></a>00266
215
<a name="l00280"></a><a class="code" href="class_qwt_abstract_scale_draw.html#2a9633476aa1c99e25fa07d87db3e415">00280</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale_draw.html#2a9633476aa1c99e25fa07d87db3e415">QwtAbstractScaleDraw::setMinimumExtent</a>(<span class="keywordtype">int</span> minExtent)
216
<a name="l00281"></a>00281 {
217
<a name="l00282"></a>00282 <span class="keywordflow">if</span> ( minExtent < 0 )
218
<a name="l00283"></a>00283 minExtent = 0;
219
<a name="l00284"></a>00284
220
<a name="l00285"></a>00285 d_data->minExtent = minExtent;
221
<a name="l00286"></a>00286 }
222
<a name="l00287"></a>00287
223
<a name="l00292"></a><a class="code" href="class_qwt_abstract_scale_draw.html#f7b927390d71f291fa03186eff79e201">00292</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_abstract_scale_draw.html#f7b927390d71f291fa03186eff79e201">QwtAbstractScaleDraw::minimumExtent</a>()<span class="keyword"> const</span>
224
<a name="l00293"></a>00293 <span class="keyword"></span>{
225
<a name="l00294"></a>00294 <span class="keywordflow">return</span> d_data->minExtent;
226
<a name="l00295"></a>00295 }
227
<a name="l00296"></a>00296
228
<a name="l00305"></a><a class="code" href="class_qwt_abstract_scale_draw.html#05437152e446e9c0f5e912e68269a6a7">00305</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale_draw.html#05437152e446e9c0f5e912e68269a6a7">QwtAbstractScaleDraw::setTickLength</a>(
229
<a name="l00306"></a>00306 <a class="code" href="class_qwt_scale_div.html#f21aedaa886dd5e067cf63505838736c">QwtScaleDiv::TickType</a> tickType, <span class="keywordtype">int</span> length)
230
<a name="l00307"></a>00307 {
231
<a name="l00308"></a>00308 <span class="keywordflow">if</span> ( tickType < QwtScaleDiv::MinorTick ||
232
<a name="l00309"></a>00309 tickType > QwtScaleDiv::MajorTick )
233
<a name="l00310"></a>00310 {
234
<a name="l00311"></a>00311 <span class="keywordflow">return</span>;
235
<a name="l00312"></a>00312 }
236
<a name="l00313"></a>00313
237
<a name="l00314"></a>00314 <span class="keywordflow">if</span> ( length < 0 )
238
<a name="l00315"></a>00315 length = 0;
239
<a name="l00316"></a>00316
240
<a name="l00317"></a>00317 <span class="keyword">const</span> <span class="keywordtype">int</span> maxTickLen = 1000;
241
<a name="l00318"></a>00318 <span class="keywordflow">if</span> ( length > maxTickLen )
242
<a name="l00319"></a>00319 length = 1000;
243
<a name="l00320"></a>00320
244
<a name="l00321"></a>00321 d_data->tickLength[tickType] = length;
245
<a name="l00322"></a>00322 }
246
<a name="l00323"></a>00323
247
<a name="l00330"></a><a class="code" href="class_qwt_abstract_scale_draw.html#d183cd4b9b5b204ca5d264e0f42e06a1">00330</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_abstract_scale_draw.html#d183cd4b9b5b204ca5d264e0f42e06a1">QwtAbstractScaleDraw::tickLength</a>(<a class="code" href="class_qwt_scale_div.html#f21aedaa886dd5e067cf63505838736c">QwtScaleDiv::TickType</a> tickType)<span class="keyword"> const</span>
248
<a name="l00331"></a>00331 <span class="keyword"></span>{
249
<a name="l00332"></a>00332 <span class="keywordflow">if</span> ( tickType < QwtScaleDiv::MinorTick ||
250
<a name="l00333"></a>00333 tickType > QwtScaleDiv::MajorTick )
251
<a name="l00334"></a>00334 {
252
<a name="l00335"></a>00335 <span class="keywordflow">return</span> 0;
253
<a name="l00336"></a>00336 }
254
<a name="l00337"></a>00337
255
<a name="l00338"></a>00338 <span class="keywordflow">return</span> d_data->tickLength[tickType];
256
<a name="l00339"></a>00339 }
257
<a name="l00340"></a>00340
258
<a name="l00344"></a><a class="code" href="class_qwt_abstract_scale_draw.html#70d03241a4502cf546c5075d28658601">00344</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_abstract_scale_draw.html#70d03241a4502cf546c5075d28658601">QwtAbstractScaleDraw::majTickLength</a>()<span class="keyword"> const</span>
259
<a name="l00345"></a>00345 <span class="keyword"></span>{
260
<a name="l00346"></a>00346 <span class="keywordflow">return</span> d_data->tickLength[QwtScaleDiv::MajorTick];
261
<a name="l00347"></a>00347 }
262
<a name="l00348"></a>00348
263
<a name="l00359"></a><a class="code" href="class_qwt_abstract_scale_draw.html#4ff88bc827dd6c6ca9298de13483b61f">00359</a> <a class="code" href="class_qwt_text.html">QwtText</a> <a class="code" href="class_qwt_abstract_scale_draw.html#4ff88bc827dd6c6ca9298de13483b61f">QwtAbstractScaleDraw::label</a>(<span class="keywordtype">double</span> value)<span class="keyword"> const</span>
264
<a name="l00360"></a>00360 <span class="keyword"></span>{
265
<a name="l00361"></a>00361 <span class="keywordflow">return</span> QString::number(value);
266
<a name="l00362"></a>00362 }
267
<a name="l00363"></a>00363
268
<a name="l00377"></a><a class="code" href="class_qwt_abstract_scale_draw.html#5e703dcb115a51024f89f92e61c2c8d8">00377</a> <span class="keyword">const</span> <a class="code" href="class_qwt_text.html">QwtText</a> &<a class="code" href="class_qwt_abstract_scale_draw.html#5e703dcb115a51024f89f92e61c2c8d8">QwtAbstractScaleDraw::tickLabel</a>(
269
<a name="l00378"></a>00378 <span class="keyword">const</span> QFont &font, <span class="keywordtype">double</span> value)<span class="keyword"> const</span>
270
<a name="l00379"></a>00379 <span class="keyword"></span>{
271
<a name="l00380"></a>00380 QMap<double, QwtText>::const_iterator it = d_data->labelCache.find(value);
272
<a name="l00381"></a>00381 <span class="keywordflow">if</span> ( it == d_data->labelCache.end() )
273
<a name="l00382"></a>00382 {
274
<a name="l00383"></a>00383 <a class="code" href="class_qwt_text.html">QwtText</a> lbl = <a class="code" href="class_qwt_abstract_scale_draw.html#4ff88bc827dd6c6ca9298de13483b61f">label</a>(value);
275
<a name="l00384"></a>00384 lbl.<a class="code" href="class_qwt_text.html#2e71d427de766455323794f27d369a5d">setRenderFlags</a>(0);
276
<a name="l00385"></a>00385 lbl.setLayoutAttribute(QwtText::MinimumLayout);
277
<a name="l00386"></a>00386
278
<a name="l00387"></a>00387 (void)lbl.textSize(font); <span class="comment">// initialize the internal cache</span>
279
<a name="l00388"></a>00388
280
<a name="l00389"></a>00389 it = d_data->labelCache.insert(value, lbl);
281
<a name="l00390"></a>00390 }
282
<a name="l00391"></a>00391
283
<a name="l00392"></a>00392 <span class="keywordflow">return</span> (*it);
284
<a name="l00393"></a>00393 }
285
<a name="l00394"></a>00394
286
<a name="l00402"></a><a class="code" href="class_qwt_abstract_scale_draw.html#4ed95cd23c5d779c1b05aa5295409aa6">00402</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale_draw.html#4ed95cd23c5d779c1b05aa5295409aa6">QwtAbstractScaleDraw::invalidateCache</a>()
287
<a name="l00403"></a>00403 {
288
<a name="l00404"></a>00404 d_data->labelCache.clear();
289
<a name="l00405"></a>00405 }
290
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Jun 11 07:41:37 2007 for Qwt User's Guide by
291
<a href="http://www.doxygen.org/index.html">
292
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.6 </small></address>
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qwt-5.0.2/doc/html/qwt__abstract__scale__draw_8cpp-source.html
