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<h1>qwt_abstract_scale.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 "qwt_scale_engine.h"</span>
30
<a name="l00011"></a>00011 <span class="preprocessor">#include "qwt_scale_draw.h"</span>
31
<a name="l00012"></a>00012 <span class="preprocessor">#include "qwt_scale_div.h"</span>
32
<a name="l00013"></a>00013 <span class="preprocessor">#include "qwt_scale_map.h"</span>
33
<a name="l00014"></a>00014 <span class="preprocessor">#include "qwt_double_interval.h"</span>
34
<a name="l00015"></a>00015 <span class="preprocessor">#include "qwt_abstract_scale.h"</span>
35
<a name="l00016"></a>00016
36
<a name="l00017"></a>00017 <span class="keyword">class </span>QwtAbstractScale::PrivateData
37
<a name="l00018"></a>00018 {
38
<a name="l00019"></a>00019 <span class="keyword">public</span>:
39
<a name="l00020"></a>00020 PrivateData():
40
<a name="l00021"></a>00021 maxMajor(5),
41
<a name="l00022"></a>00022 maxMinor(3),
42
<a name="l00023"></a>00023 stepSize(0.0),
43
<a name="l00024"></a>00024 <a class="code" href="class_qwt_abstract_scale.html#5b428a7c82bb3446b6a86ea4439d6970">autoScale</a>(true)
44
<a name="l00025"></a>00025 {
45
<a name="l00026"></a>00026 <a class="code" href="class_qwt_abstract_scale.html#5dc4f746d4dfacb8a1a57cf85deccf64">scaleEngine</a> = <span class="keyword">new</span> <a class="code" href="class_qwt_linear_scale_engine.html">QwtLinearScaleEngine</a>;
46
<a name="l00027"></a>00027 scaleDraw = <span class="keyword">new</span> <a class="code" href="class_qwt_scale_draw.html">QwtScaleDraw</a>();
47
<a name="l00028"></a>00028 }
48
<a name="l00029"></a>00029
49
<a name="l00030"></a>00030 ~PrivateData()
50
<a name="l00031"></a>00031 {
51
<a name="l00032"></a>00032 <span class="keyword">delete</span> <a class="code" href="class_qwt_abstract_scale.html#5dc4f746d4dfacb8a1a57cf85deccf64">scaleEngine</a>;
52
<a name="l00033"></a>00033 <span class="keyword">delete</span> scaleDraw;
53
<a name="l00034"></a>00034 }
54
<a name="l00035"></a>00035
55
<a name="l00036"></a>00036 <a class="code" href="class_qwt_scale_engine.html">QwtScaleEngine</a> *<a class="code" href="class_qwt_abstract_scale.html#5dc4f746d4dfacb8a1a57cf85deccf64">scaleEngine</a>;
56
<a name="l00037"></a>00037 <a class="code" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> *scaleDraw;
57
<a name="l00038"></a>00038
58
<a name="l00039"></a>00039 <span class="keywordtype">int</span> maxMajor;
59
<a name="l00040"></a>00040 <span class="keywordtype">int</span> maxMinor;
60
<a name="l00041"></a>00041 <span class="keywordtype">double</span> stepSize;
61
<a name="l00042"></a>00042
62
<a name="l00043"></a>00043 <span class="keywordtype">bool</span> <a class="code" href="class_qwt_abstract_scale.html#5b428a7c82bb3446b6a86ea4439d6970">autoScale</a>;
63
<a name="l00044"></a>00044 };
64
<a name="l00045"></a>00045
65
<a name="l00053"></a><a class="code" href="class_qwt_abstract_scale.html#a12aff84cebf3ace4f1b5e61737e0051">00053</a> <a class="code" href="class_qwt_abstract_scale.html#a12aff84cebf3ace4f1b5e61737e0051">QwtAbstractScale::QwtAbstractScale</a>()
66
<a name="l00054"></a>00054 {
67
<a name="l00055"></a>00055 d_data = <span class="keyword">new</span> PrivateData;
68
<a name="l00056"></a>00056 <a class="code" href="class_qwt_abstract_scale.html#bd7c6b312b41882a3b509aadc9ada46e">rescale</a>(0.0, 100.0);
69
<a name="l00057"></a>00057 }
70
<a name="l00058"></a>00058
71
<a name="l00060"></a><a class="code" href="class_qwt_abstract_scale.html#73890593efff11427ea7a42a3ebadefd">00060</a> <a class="code" href="class_qwt_abstract_scale.html#73890593efff11427ea7a42a3ebadefd">QwtAbstractScale::~QwtAbstractScale</a>()
72
<a name="l00061"></a>00061 {
73
<a name="l00062"></a>00062 <span class="keyword">delete</span> d_data;
74
<a name="l00063"></a>00063 }
75
<a name="l00064"></a>00064
76
<a name="l00075"></a><a class="code" href="class_qwt_abstract_scale.html#91af529248b556ef130add4bcfc60bb2">00075</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale.html#91af529248b556ef130add4bcfc60bb2">QwtAbstractScale::setScale</a>(<span class="keywordtype">double</span> vmin, <span class="keywordtype">double</span> vmax, <span class="keywordtype">double</span> stepSize)
77
<a name="l00076"></a>00076 {
78
<a name="l00077"></a>00077 d_data->autoScale = <span class="keyword">false</span>;
79
<a name="l00078"></a>00078 d_data->stepSize = stepSize;
80
<a name="l00079"></a>00079
81
<a name="l00080"></a>00080 <a class="code" href="class_qwt_abstract_scale.html#bd7c6b312b41882a3b509aadc9ada46e">rescale</a>(vmin, vmax, stepSize);
82
<a name="l00081"></a>00081 }
83
<a name="l00082"></a>00082
84
<a name="l00092"></a><a class="code" href="class_qwt_abstract_scale.html#71a5d086aa003f62edb225b3b64024d7">00092</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale.html#91af529248b556ef130add4bcfc60bb2">QwtAbstractScale::setScale</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html">QwtDoubleInterval</a> &interval,
85
<a name="l00093"></a>00093 <span class="keywordtype">double</span> stepSize)
86
<a name="l00094"></a>00094 {
87
<a name="l00095"></a>00095 <a class="code" href="class_qwt_abstract_scale.html#91af529248b556ef130add4bcfc60bb2">setScale</a>(interval.<a class="code" href="class_qwt_double_interval.html#63ebec423f5f8bf165e48836fcd8fc0a">minValue</a>(), interval.<a class="code" href="class_qwt_double_interval.html#d8aac16fed2fe4dae576096db91da18d">maxValue</a>(), stepSize);
88
<a name="l00096"></a>00096 }
89
<a name="l00097"></a>00097
90
<a name="l00098"></a>00098
91
<a name="l00107"></a><a class="code" href="class_qwt_abstract_scale.html#bfb499364716be91dbbc03879fc171ab">00107</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale.html#91af529248b556ef130add4bcfc60bb2">QwtAbstractScale::setScale</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> &scaleDiv)
92
<a name="l00108"></a>00108 {
93
<a name="l00109"></a>00109 d_data->autoScale = <span class="keyword">false</span>;
94
<a name="l00110"></a>00110
95
<a name="l00111"></a>00111 <span class="keywordflow">if</span> (scaleDiv != d_data->scaleDraw->scaleDiv())
96
<a name="l00112"></a>00112 {
97
<a name="l00113"></a>00113 d_data->scaleDraw->setScaleDiv(scaleDiv);
98
<a name="l00114"></a>00114 <a class="code" href="class_qwt_abstract_scale.html#0dbb7bdc557c0a7b163643e41970ed6a">scaleChange</a>();
99
<a name="l00115"></a>00115 }
100
<a name="l00116"></a>00116 }
101
<a name="l00117"></a>00117
102
<a name="l00127"></a><a class="code" href="class_qwt_abstract_scale.html#bd7c6b312b41882a3b509aadc9ada46e">00127</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale.html#bd7c6b312b41882a3b509aadc9ada46e">QwtAbstractScale::rescale</a>(<span class="keywordtype">double</span> vmin, <span class="keywordtype">double</span> vmax, <span class="keywordtype">double</span> stepSize)
103
<a name="l00128"></a>00128 {
104
<a name="l00129"></a>00129 <span class="keyword">const</span> <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> scaleDiv = d_data->scaleEngine->divideScale(
105
<a name="l00130"></a>00130 vmin, vmax, d_data->maxMajor, d_data->maxMinor, stepSize);
106
<a name="l00131"></a>00131
107
<a name="l00132"></a>00132 <span class="keywordflow">if</span> ( scaleDiv != d_data->scaleDraw->scaleDiv() )
108
<a name="l00133"></a>00133 {
109
<a name="l00134"></a>00134 d_data->scaleDraw->setTransformation(
110
<a name="l00135"></a>00135 d_data->scaleEngine->transformation());
111
<a name="l00136"></a>00136 d_data->scaleDraw->setScaleDiv(scaleDiv);
112
<a name="l00137"></a>00137 <a class="code" href="class_qwt_abstract_scale.html#0dbb7bdc557c0a7b163643e41970ed6a">scaleChange</a>();
113
<a name="l00138"></a>00138 }
114
<a name="l00139"></a>00139 }
115
<a name="l00140"></a>00140
116
<a name="l00147"></a><a class="code" href="class_qwt_abstract_scale.html#de952bd5cbde1dba015bc16b880e3a28">00147</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale.html#de952bd5cbde1dba015bc16b880e3a28">QwtAbstractScale::setAutoScale</a>()
117
<a name="l00148"></a>00148 {
118
<a name="l00149"></a>00149 <span class="keywordflow">if</span> (!d_data->autoScale)
119
<a name="l00150"></a>00150 {
120
<a name="l00151"></a>00151 d_data->autoScale = <span class="keyword">true</span>;
121
<a name="l00152"></a>00152 <a class="code" href="class_qwt_abstract_scale.html#0dbb7bdc557c0a7b163643e41970ed6a">scaleChange</a>();
122
<a name="l00153"></a>00153 }
123
<a name="l00154"></a>00154 }
124
<a name="l00155"></a>00155
125
<a name="l00159"></a><a class="code" href="class_qwt_abstract_scale.html#5b428a7c82bb3446b6a86ea4439d6970">00159</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_abstract_scale.html#5b428a7c82bb3446b6a86ea4439d6970">QwtAbstractScale::autoScale</a>()<span class="keyword"> const</span>
126
<a name="l00160"></a>00160 <span class="keyword"></span>{
127
<a name="l00161"></a>00161 <span class="keywordflow">return</span> d_data->autoScale;
128
<a name="l00162"></a>00162 }
129
<a name="l00163"></a>00163
130
<a name="l00173"></a><a class="code" href="class_qwt_abstract_scale.html#40fdb4572ad8fdec8b93766ff5f8eda8">00173</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale.html#40fdb4572ad8fdec8b93766ff5f8eda8">QwtAbstractScale::setScaleMaxMajor</a>(<span class="keywordtype">int</span> ticks)
131
<a name="l00174"></a>00174 {
132
<a name="l00175"></a>00175 <span class="keywordflow">if</span> (ticks != d_data->maxMajor)
133
<a name="l00176"></a>00176 {
134
<a name="l00177"></a>00177 d_data->maxMajor = ticks;
135
<a name="l00178"></a>00178 updateScaleDraw();
136
<a name="l00179"></a>00179 }
137
<a name="l00180"></a>00180 }
138
<a name="l00181"></a>00181
139
<a name="l00191"></a><a class="code" href="class_qwt_abstract_scale.html#6520bb1e52571f865b21b3710786a4db">00191</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale.html#6520bb1e52571f865b21b3710786a4db">QwtAbstractScale::setScaleMaxMinor</a>(<span class="keywordtype">int</span> ticks)
140
<a name="l00192"></a>00192 {
141
<a name="l00193"></a>00193 <span class="keywordflow">if</span> ( ticks != d_data->maxMinor)
142
<a name="l00194"></a>00194 {
143
<a name="l00195"></a>00195 d_data->maxMinor = ticks;
144
<a name="l00196"></a>00196 updateScaleDraw();
145
<a name="l00197"></a>00197 }
146
<a name="l00198"></a>00198 }
147
<a name="l00199"></a>00199
148
<a name="l00204"></a><a class="code" href="class_qwt_abstract_scale.html#e6e5881dddd6d1340be4750c115d29dd">00204</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_abstract_scale.html#e6e5881dddd6d1340be4750c115d29dd">QwtAbstractScale::scaleMaxMinor</a>()<span class="keyword"> const </span>
149
<a name="l00205"></a>00205 <span class="keyword"></span>{
150
<a name="l00206"></a>00206 <span class="keywordflow">return</span> d_data->maxMinor;
151
<a name="l00207"></a>00207 }
152
<a name="l00208"></a>00208
153
<a name="l00213"></a><a class="code" href="class_qwt_abstract_scale.html#951e85ddbf8b0edaa91a9d300a92dd4e">00213</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_abstract_scale.html#951e85ddbf8b0edaa91a9d300a92dd4e">QwtAbstractScale::scaleMaxMajor</a>()<span class="keyword"> const </span>
154
<a name="l00214"></a>00214 <span class="keyword"></span>{
155
<a name="l00215"></a>00215 <span class="keywordflow">return</span> d_data->maxMajor;
156
<a name="l00216"></a>00216 }
157
<a name="l00217"></a>00217
158
<a name="l00224"></a><a class="code" href="class_qwt_abstract_scale.html#950c5bf521dc704b78f76c7951346288">00224</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale.html#950c5bf521dc704b78f76c7951346288">QwtAbstractScale::setAbstractScaleDraw</a>(<a class="code" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> *scaleDraw)
159
<a name="l00225"></a>00225 {
160
<a name="l00226"></a>00226 <span class="keywordflow">if</span> ( scaleDraw == NULL || scaleDraw == d_data->scaleDraw )
161
<a name="l00227"></a>00227 <span class="keywordflow">return</span>;
162
<a name="l00228"></a>00228
163
<a name="l00229"></a>00229 <span class="keywordflow">if</span> ( d_data->scaleDraw != NULL )
164
<a name="l00230"></a>00230 scaleDraw-><a class="code" href="class_qwt_abstract_scale_draw.html#4399aac94a294f5ed6c52114dde00d2f">setScaleDiv</a>(d_data->scaleDraw->scaleDiv());
165
<a name="l00231"></a>00231
166
<a name="l00232"></a>00232 <span class="keyword">delete</span> d_data->scaleDraw;
167
<a name="l00233"></a>00233 d_data->scaleDraw = scaleDraw;
168
<a name="l00234"></a>00234 }
169
<a name="l00235"></a>00235
170
<a name="l00240"></a><a class="code" href="class_qwt_abstract_scale.html#a61afdff037ef745a6dad686537cdb96">00240</a> <a class="code" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> *<a class="code" href="class_qwt_abstract_scale.html#473e84e72bd52afac58c04d004b5c06a">QwtAbstractScale::abstractScaleDraw</a>()
171
<a name="l00241"></a>00241 {
172
<a name="l00242"></a>00242 <span class="keywordflow">return</span> d_data->scaleDraw;
173
<a name="l00243"></a>00243 }
174
<a name="l00244"></a>00244
175
<a name="l00249"></a><a class="code" href="class_qwt_abstract_scale.html#473e84e72bd52afac58c04d004b5c06a">00249</a> <span class="keyword">const</span> <a class="code" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> *<a class="code" href="class_qwt_abstract_scale.html#473e84e72bd52afac58c04d004b5c06a">QwtAbstractScale::abstractScaleDraw</a>()<span class="keyword"> const</span>
176
<a name="l00250"></a>00250 <span class="keyword"></span>{
177
<a name="l00251"></a>00251 <span class="keywordflow">return</span> d_data->scaleDraw;
178
<a name="l00252"></a>00252 }
179
<a name="l00253"></a>00253
180
<a name="l00254"></a>00254 <span class="keywordtype">void</span> QwtAbstractScale::updateScaleDraw()
181
<a name="l00255"></a>00255 {
182
<a name="l00256"></a>00256 <a class="code" href="class_qwt_abstract_scale.html#bd7c6b312b41882a3b509aadc9ada46e">rescale</a>( d_data->scaleDraw->scaleDiv().lBound(),
183
<a name="l00257"></a>00257 d_data->scaleDraw->scaleDiv().hBound(), d_data->stepSize);
184
<a name="l00258"></a>00258 }
185
<a name="l00259"></a>00259
186
<a name="l00269"></a><a class="code" href="class_qwt_abstract_scale.html#a00f44140af3f2b7595cb6e23371198f">00269</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale.html#a00f44140af3f2b7595cb6e23371198f">QwtAbstractScale::setScaleEngine</a>(<a class="code" href="class_qwt_scale_engine.html">QwtScaleEngine</a> *scaleEngine)
187
<a name="l00270"></a>00270 {
188
<a name="l00271"></a>00271 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_abstract_scale.html#5dc4f746d4dfacb8a1a57cf85deccf64">scaleEngine</a> != NULL && <a class="code" href="class_qwt_abstract_scale.html#5dc4f746d4dfacb8a1a57cf85deccf64">scaleEngine</a> != d_data->scaleEngine )
189
<a name="l00272"></a>00272 {
190
<a name="l00273"></a>00273 <span class="keyword">delete</span> d_data->scaleEngine;
191
<a name="l00274"></a>00274 d_data->scaleEngine = <a class="code" href="class_qwt_abstract_scale.html#5dc4f746d4dfacb8a1a57cf85deccf64">scaleEngine</a>;
192
<a name="l00275"></a>00275 }
193
<a name="l00276"></a>00276 }
194
<a name="l00277"></a>00277
195
<a name="l00282"></a><a class="code" href="class_qwt_abstract_scale.html#5dc4f746d4dfacb8a1a57cf85deccf64">00282</a> <span class="keyword">const</span> <a class="code" href="class_qwt_scale_engine.html">QwtScaleEngine</a> *<a class="code" href="class_qwt_abstract_scale.html#5dc4f746d4dfacb8a1a57cf85deccf64">QwtAbstractScale::scaleEngine</a>()<span class="keyword"> const</span>
196
<a name="l00283"></a>00283 <span class="keyword"></span>{
197
<a name="l00284"></a>00284 <span class="keywordflow">return</span> d_data->scaleEngine;
198
<a name="l00285"></a>00285 }
199
<a name="l00286"></a>00286
200
<a name="l00291"></a><a class="code" href="class_qwt_abstract_scale.html#ea3b9d4912f1c28671f232e4100936d7">00291</a> <a class="code" href="class_qwt_scale_engine.html">QwtScaleEngine</a> *<a class="code" href="class_qwt_abstract_scale.html#5dc4f746d4dfacb8a1a57cf85deccf64">QwtAbstractScale::scaleEngine</a>()
201
<a name="l00292"></a>00292 {
202
<a name="l00293"></a>00293 <span class="keywordflow">return</span> d_data->scaleEngine;
203
<a name="l00294"></a>00294 }
204
<a name="l00295"></a>00295
205
<a name="l00301"></a><a class="code" href="class_qwt_abstract_scale.html#0dbb7bdc557c0a7b163643e41970ed6a">00301</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale.html#0dbb7bdc557c0a7b163643e41970ed6a">QwtAbstractScale::scaleChange</a>()
206
<a name="l00302"></a>00302 {
207
<a name="l00303"></a>00303 }
208
<a name="l00304"></a>00304
209
<a name="l00308"></a><a class="code" href="class_qwt_abstract_scale.html#116c7877f4d9fc3620ffa713b5bbdb96">00308</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.html#116c7877f4d9fc3620ffa713b5bbdb96">QwtAbstractScale::scaleMap</a>()<span class="keyword"> const</span>
210
<a name="l00309"></a>00309 <span class="keyword"></span>{
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<a name="l00310"></a>00310 <span class="keywordflow">return</span> d_data->scaleDraw->scaleMap();
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<a name="l00311"></a>00311 }
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</pre></div><hr size="1"><address style="align: right;"><small>Generated on Sun Mar 22 16:54:06 2009 for Qwt User's Guide by
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