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<h1>qwt_plot_layout.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 <qscrollbar.h></span>
27
<a name="l00013"></a>00013 <span class="preprocessor">#include "qwt_rect.h"</span>
28
<a name="l00014"></a>00014 <span class="preprocessor">#include "qwt_text.h"</span>
29
<a name="l00015"></a>00015 <span class="preprocessor">#include "qwt_text_label.h"</span>
30
<a name="l00016"></a>00016 <span class="preprocessor">#include "qwt_plot_canvas.h"</span>
31
<a name="l00017"></a>00017 <span class="preprocessor">#include "qwt_scale_widget.h"</span>
32
<a name="l00018"></a>00018 <span class="preprocessor">#include "qwt_legend.h"</span>
33
<a name="l00019"></a>00019 <span class="preprocessor">#include "qwt_plot_layout.h"</span>
34
<a name="l00020"></a>00020
35
<a name="l00021"></a>00021 <span class="keyword">class </span>QwtPlotLayout::LayoutData
36
<a name="l00022"></a>00022 {
37
<a name="l00023"></a>00023 <span class="keyword">public</span>:
38
<a name="l00024"></a>00024 <span class="keywordtype">void</span> init(<span class="keyword">const</span> <a class="code" href="class_qwt_plot.html">QwtPlot</a> *, <span class="keyword">const</span> QRect &rect);
39
<a name="l00025"></a>00025
40
<a name="l00026"></a>00026 <span class="keyword">struct </span>t_legendData
41
<a name="l00027"></a>00027 {
42
<a name="l00028"></a>00028 <span class="keywordtype">int</span> frameWidth;
43
<a name="l00029"></a>00029 <span class="keywordtype">int</span> vScrollBarWidth;
44
<a name="l00030"></a>00030 <span class="keywordtype">int</span> hScrollBarHeight;
45
<a name="l00031"></a>00031 QSize hint;
46
<a name="l00032"></a>00032 } legend;
47
<a name="l00033"></a>00033
48
<a name="l00034"></a>00034 <span class="keyword">struct </span>t_titleData
49
<a name="l00035"></a>00035 {
50
<a name="l00036"></a>00036 <a class="code" href="class_qwt_text.html">QwtText</a> text;
51
<a name="l00037"></a>00037 <span class="keywordtype">int</span> frameWidth;
52
<a name="l00038"></a>00038 } title;
53
<a name="l00039"></a>00039
54
<a name="l00040"></a>00040 <span class="keyword">struct </span>t_scaleData
55
<a name="l00041"></a>00041 {
56
<a name="l00042"></a>00042 <span class="keywordtype">bool</span> isEnabled;
57
<a name="l00043"></a>00043 <span class="keyword">const</span> <a class="code" href="class_qwt_scale_widget.html">QwtScaleWidget</a> *scaleWidget;
58
<a name="l00044"></a>00044 QFont scaleFont;
59
<a name="l00045"></a>00045 <span class="keywordtype">int</span> start;
60
<a name="l00046"></a>00046 <span class="keywordtype">int</span> end;
61
<a name="l00047"></a>00047 <span class="keywordtype">int</span> baseLineOffset;
62
<a name="l00048"></a>00048 <span class="keywordtype">int</span> tickOffset;
63
<a name="l00049"></a>00049 <span class="keywordtype">int</span> dimWithoutTitle;
64
<a name="l00050"></a>00050 } scale[QwtPlot::axisCnt];
65
<a name="l00051"></a>00051
66
<a name="l00052"></a>00052 <span class="keyword">struct </span>t_canvasData
67
<a name="l00053"></a>00053 {
68
<a name="l00054"></a>00054 <span class="keywordtype">int</span> frameWidth;
69
<a name="l00055"></a>00055 } canvas;
70
<a name="l00056"></a>00056 };
71
<a name="l00057"></a>00057
72
<a name="l00058"></a>00058 <span class="comment">/*</span>
73
<a name="l00059"></a>00059 <span class="comment"> Extract all layout relevant data from the plot components</span>
74
<a name="l00060"></a>00060 <span class="comment">*/</span>
75
<a name="l00061"></a>00061
76
<a name="l00062"></a>00062 <span class="keywordtype">void</span> QwtPlotLayout::LayoutData::init(<span class="keyword">const</span> <a class="code" href="class_qwt_plot.html">QwtPlot</a> *plot, <span class="keyword">const</span> QRect &rect)
77
<a name="l00063"></a>00063 {
78
<a name="l00064"></a>00064 <span class="comment">// legend</span>
79
<a name="l00065"></a>00065
80
<a name="l00066"></a>00066 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_plot_item.html#4c99653a14a49ad94d466168d06e97b9">plot</a>-><a class="code" href="class_qwt_plot.html#9156b14a6f67f6279a16fea063ce1d14">plotLayout</a>()-><a class="code" href="class_qwt_plot_layout.html#6351a18b76e22d9e83d682d203599afc">legendPosition</a>() != QwtPlot::ExternalLegend
81
<a name="l00067"></a>00067 && <a class="code" href="class_qwt_plot_item.html#4c99653a14a49ad94d466168d06e97b9">plot</a>-><a class="code" href="class_qwt_plot.html#ab1f2cf0e567e09a4c4bce3181c03ba0">legend</a>() )
82
<a name="l00068"></a>00068 {
83
<a name="l00069"></a>00069 legend.frameWidth = <a class="code" href="class_qwt_plot_item.html#4c99653a14a49ad94d466168d06e97b9">plot</a>-><a class="code" href="class_qwt_plot.html#ab1f2cf0e567e09a4c4bce3181c03ba0">legend</a>()->frameWidth();
84
<a name="l00070"></a>00070 legend.vScrollBarWidth =
85
<a name="l00071"></a>00071 <a class="code" href="class_qwt_plot_item.html#4c99653a14a49ad94d466168d06e97b9">plot</a>-><a class="code" href="class_qwt_plot.html#ab1f2cf0e567e09a4c4bce3181c03ba0">legend</a>()-><a class="code" href="class_qwt_legend.html#494758e3d7ab688c59989da52e7e97cf">verticalScrollBar</a>()->sizeHint().width();
86
<a name="l00072"></a>00072 legend.hScrollBarHeight =
87
<a name="l00073"></a>00073 <a class="code" href="class_qwt_plot_item.html#4c99653a14a49ad94d466168d06e97b9">plot</a>-><a class="code" href="class_qwt_plot.html#ab1f2cf0e567e09a4c4bce3181c03ba0">legend</a>()-><a class="code" href="class_qwt_legend.html#40dab44d47921da18a925e8fcc8d6870">horizontalScrollBar</a>()->sizeHint().height();
88
<a name="l00074"></a>00074
89
<a name="l00075"></a>00075 <span class="keyword">const</span> QSize hint = <a class="code" href="class_qwt_plot_item.html#4c99653a14a49ad94d466168d06e97b9">plot</a>-><a class="code" href="class_qwt_plot.html#ab1f2cf0e567e09a4c4bce3181c03ba0">legend</a>()-><a class="code" href="class_qwt_legend.html#2517a7d9d78ab7a3892125ecf755f33f">sizeHint</a>();
90
<a name="l00076"></a>00076
91
<a name="l00077"></a>00077 <span class="keywordtype">int</span> w = qwtMin(hint.width(), rect.width());
92
<a name="l00078"></a>00078 <span class="keywordtype">int</span> h = <a class="code" href="class_qwt_plot_item.html#4c99653a14a49ad94d466168d06e97b9">plot</a>-><a class="code" href="class_qwt_plot.html#ab1f2cf0e567e09a4c4bce3181c03ba0">legend</a>()-><a class="code" href="class_qwt_legend.html#273ec258209c42f57b154ff4da61e1d0">heightForWidth</a>(w);
93
<a name="l00079"></a>00079 <span class="keywordflow">if</span> ( h == 0 )
94
<a name="l00080"></a>00080 h = hint.height();
95
<a name="l00081"></a>00081
96
<a name="l00082"></a>00082 <span class="keywordflow">if</span> ( h > rect.height() )
97
<a name="l00083"></a>00083 w += legend.vScrollBarWidth;
98
<a name="l00084"></a>00084
99
<a name="l00085"></a>00085 legend.hint = QSize(w, h);
100
<a name="l00086"></a>00086 }
101
<a name="l00087"></a>00087
102
<a name="l00088"></a>00088 <span class="comment">// title </span>
103
<a name="l00089"></a>00089
104
<a name="l00090"></a>00090 title.frameWidth = 0;
105
<a name="l00091"></a>00091 title.text = <a class="code" href="class_qwt_text.html">QwtText</a>();
106
<a name="l00092"></a>00092
107
<a name="l00093"></a>00093 <span class="keywordflow">if</span> (plot-><a class="code" href="class_qwt_plot.html#c39356b86ed70ebf256a8ae964910206">titleLabel</a>() )
108
<a name="l00094"></a>00094 {
109
<a name="l00095"></a>00095 <span class="keyword">const</span> <a class="code" href="class_qwt_text_label.html">QwtTextLabel</a> *label = plot-><a class="code" href="class_qwt_plot.html#c39356b86ed70ebf256a8ae964910206">titleLabel</a>();
110
<a name="l00096"></a>00096 title.<a class="code" href="class_qwt_text_label.html#6ff4f9a87e11594740f312c8522f933e">text</a> = label-><a class="code" href="class_qwt_text.html#15a42a83153f82bab8cfc283d090d736">text</a>();
111
<a name="l00097"></a>00097 <span class="keywordflow">if</span> ( !(title.text.testPaintAttribute(QwtText::PaintUsingTextFont)) )
112
<a name="l00098"></a>00098 title.text.setFont(label->font());
113
<a name="l00099"></a>00099
114
<a name="l00100"></a>00100 title.frameWidth = plot-><a class="code" href="class_qwt_plot.html#c39356b86ed70ebf256a8ae964910206">titleLabel</a>()->frameWidth();
115
<a name="l00101"></a>00101 }
116
<a name="l00102"></a>00102
117
<a name="l00103"></a>00103 <span class="comment">// scales </span>
118
<a name="l00104"></a>00104
119
<a name="l00105"></a>00105 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> axis = 0; axis < QwtPlot::axisCnt; axis++ )
120
<a name="l00106"></a>00106 {
121
<a name="l00107"></a>00107 <span class="keywordflow">if</span> ( plot-><a class="code" href="class_qwt_plot.html#ac5107a1ec8836b53f084a5b1bb8cc43">axisEnabled</a>(axis) )
122
<a name="l00108"></a>00108 {
123
<a name="l00109"></a>00109 <span class="keyword">const</span> <a class="code" href="class_qwt_scale_widget.html">QwtScaleWidget</a> *scaleWidget = plot-><a class="code" href="class_qwt_plot.html#6b495d9b17962be6e098026441a1f7b8">axisWidget</a>(axis);
124
<a name="l00110"></a>00110
125
<a name="l00111"></a>00111 scale[axis].isEnabled = <span class="keyword">true</span>;
126
<a name="l00112"></a>00112
127
<a name="l00113"></a>00113 scale[axis].scaleWidget = scaleWidget;
128
<a name="l00114"></a>00114
129
<a name="l00115"></a>00115 scale[axis].scaleFont = scaleWidget->font();
130
<a name="l00116"></a>00116
131
<a name="l00117"></a>00117 scale[axis].start = scaleWidget-><a class="code" href="class_qwt_scale_widget.html#b82bb290d685dfaec3894f5892f04ef9">startBorderDist</a>();
132
<a name="l00118"></a>00118 scale[axis].end = scaleWidget->endBorderDist();
133
<a name="l00119"></a>00119
134
<a name="l00120"></a>00120 scale[axis].baseLineOffset = scaleWidget->margin();
135
<a name="l00121"></a>00121 scale[axis].tickOffset = scaleWidget->margin();
136
<a name="l00122"></a>00122 <span class="keywordflow">if</span> ( scaleWidget->scaleDraw()->hasComponent(
137
<a name="l00123"></a>00123 QwtAbstractScaleDraw::Ticks) )
138
<a name="l00124"></a>00124 {
139
<a name="l00125"></a>00125 scale[axis].tickOffset +=
140
<a name="l00126"></a>00126 (<span class="keywordtype">int</span>)scaleWidget->scaleDraw()->majTickLength();
141
<a name="l00127"></a>00127 }
142
<a name="l00128"></a>00128
143
<a name="l00129"></a>00129 scale[axis].dimWithoutTitle = scaleWidget->dimForLength(
144
<a name="l00130"></a>00130 QWIDGETSIZE_MAX, scale[axis].scaleFont);
145
<a name="l00131"></a>00131
146
<a name="l00132"></a>00132 <span class="keywordflow">if</span> ( !scaleWidget->title().isEmpty() )
147
<a name="l00133"></a>00133 {
148
<a name="l00134"></a>00134 scale[axis].dimWithoutTitle -=
149
<a name="l00135"></a>00135 scaleWidget->titleHeightForWidth(QWIDGETSIZE_MAX);
150
<a name="l00136"></a>00136 }
151
<a name="l00137"></a>00137 }
152
<a name="l00138"></a>00138 <span class="keywordflow">else</span>
153
<a name="l00139"></a>00139 {
154
<a name="l00140"></a>00140 scale[axis].isEnabled = <span class="keyword">false</span>;
155
<a name="l00141"></a>00141 scale[axis].start = 0;
156
<a name="l00142"></a>00142 scale[axis].end = 0;
157
<a name="l00143"></a>00143 scale[axis].baseLineOffset = 0;
158
<a name="l00144"></a>00144 scale[axis].tickOffset = 0;
159
<a name="l00145"></a>00145 scale[axis].dimWithoutTitle = 0;
160
<a name="l00146"></a>00146 }
161
<a name="l00147"></a>00147 }
162
<a name="l00148"></a>00148
163
<a name="l00149"></a>00149 <span class="comment">// canvas </span>
164
<a name="l00150"></a>00150
165
<a name="l00151"></a>00151 canvas.frameWidth = plot-><a class="code" href="class_qwt_plot.html#afcc82150034fbeb393ceb9f54ba2f1a">canvas</a>()->frameWidth();
166
<a name="l00152"></a>00152 }
167
<a name="l00153"></a>00153
168
<a name="l00154"></a>00154 <span class="keyword">class </span>QwtPlotLayout::PrivateData
169
<a name="l00155"></a>00155 {
170
<a name="l00156"></a>00156 <span class="keyword">public</span>:
171
<a name="l00157"></a>00157 PrivateData():
172
<a name="l00158"></a>00158 <a class="code" href="class_qwt_plot_layout.html#358367bf229c02a7a062f9890a1b3507">margin</a>(0),
173
<a name="l00159"></a>00159 <a class="code" href="class_qwt_plot_layout.html#e93650a8f3208578f87348334b77a282">spacing</a>(5),
174
<a name="l00160"></a>00160 <a class="code" href="class_qwt_plot_layout.html#b0200ba639cfd0f31b798d6aa9b6bba7">alignCanvasToScales</a>(false)
175
<a name="l00161"></a>00161 {
176
<a name="l00162"></a>00162 }
177
<a name="l00163"></a>00163
178
<a name="l00164"></a>00164 QRect <a class="code" href="class_qwt_plot_layout.html#f6f48a4705eb7aa7616a9e1da98e2d14">titleRect</a>;
179
<a name="l00165"></a>00165 QRect <a class="code" href="class_qwt_plot_layout.html#f3f630625686721b521a8cd3c015bcbf">legendRect</a>;
180
<a name="l00166"></a>00166 QRect <a class="code" href="class_qwt_plot_layout.html#87154a8c0f12698113bf8990a7d579f6">scaleRect</a>[QwtPlot::axisCnt];
181
<a name="l00167"></a>00167 QRect <a class="code" href="class_qwt_plot_layout.html#244d79c1d635630b5d160053b62ae9f3">canvasRect</a>;
182
<a name="l00168"></a>00168
183
<a name="l00169"></a>00169 QwtPlotLayout::LayoutData layoutData;
184
<a name="l00170"></a>00170
185
<a name="l00171"></a>00171 <a class="code" href="class_qwt_plot.html#31aacb65b5c049dde8c34a0d8482661b">QwtPlot::LegendPosition</a> legendPos;
186
<a name="l00172"></a>00172 <span class="keywordtype">double</span> <a class="code" href="class_qwt_plot_layout.html#6d5d4e568ad74010742e1fdcfc1c7672">legendRatio</a>;
187
<a name="l00173"></a>00173 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot_layout.html#358367bf229c02a7a062f9890a1b3507">margin</a>;
188
<a name="l00174"></a>00174 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot_layout.html#e93650a8f3208578f87348334b77a282">spacing</a>;
189
<a name="l00175"></a>00175 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot_layout.html#acf659495ecc45367eacf5f4b2aeca7d">canvasMargin</a>[QwtPlot::axisCnt];
190
<a name="l00176"></a>00176 <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot_layout.html#b0200ba639cfd0f31b798d6aa9b6bba7">alignCanvasToScales</a>;
191
<a name="l00177"></a>00177 };
192
<a name="l00178"></a>00178
193
<a name="l00183"></a><a class="code" href="class_qwt_plot_layout.html#c89596fb2a3d3a92901f124821045a47">00183</a> <a class="code" href="class_qwt_plot_layout.html#c89596fb2a3d3a92901f124821045a47">QwtPlotLayout::QwtPlotLayout</a>()
194
<a name="l00184"></a>00184 {
195
<a name="l00185"></a>00185 d_data = <span class="keyword">new</span> PrivateData;
196
<a name="l00186"></a>00186
197
<a name="l00187"></a>00187 <a class="code" href="class_qwt_plot_layout.html#11c9695a68f95135841cb23212589f18">setLegendPosition</a>(QwtPlot::BottomLegend);
198
<a name="l00188"></a>00188 <a class="code" href="class_qwt_plot_layout.html#11667dad6675a7a58cc60ab1597b1203">setCanvasMargin</a>(4);
199
<a name="l00189"></a>00189
200
<a name="l00190"></a>00190 <a class="code" href="class_qwt_plot_layout.html#44ce72879951571ffe4daa95be0ec242">invalidate</a>();
201
<a name="l00191"></a>00191 }
202
<a name="l00192"></a>00192
203
<a name="l00194"></a><a class="code" href="class_qwt_plot_layout.html#39653485c638535bc11f50d2e5ef936d">00194</a> <a class="code" href="class_qwt_plot_layout.html#39653485c638535bc11f50d2e5ef936d">QwtPlotLayout::~QwtPlotLayout</a>()
204
<a name="l00195"></a>00195 {
205
<a name="l00196"></a>00196 <span class="keyword">delete</span> d_data;
206
<a name="l00197"></a>00197 }
207
<a name="l00198"></a>00198
208
<a name="l00207"></a><a class="code" href="class_qwt_plot_layout.html#67fc75a6f4c4d368d629841df1c5e6a5">00207</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_layout.html#67fc75a6f4c4d368d629841df1c5e6a5">QwtPlotLayout::setMargin</a>(<span class="keywordtype">int</span> margin)
209
<a name="l00208"></a>00208 {
210
<a name="l00209"></a>00209 <span class="keywordflow">if</span> ( margin < 0 )
211
<a name="l00210"></a>00210 margin = 0;
212
<a name="l00211"></a>00211 d_data->margin = margin;
213
<a name="l00212"></a>00212 }
214
<a name="l00213"></a>00213
215
<a name="l00218"></a><a class="code" href="class_qwt_plot_layout.html#358367bf229c02a7a062f9890a1b3507">00218</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot_layout.html#358367bf229c02a7a062f9890a1b3507">QwtPlotLayout::margin</a>()<span class="keyword"> const</span>
216
<a name="l00219"></a>00219 <span class="keyword"></span>{
217
<a name="l00220"></a>00220 <span class="keywordflow">return</span> d_data->margin;
218
<a name="l00221"></a>00221 }
219
<a name="l00222"></a>00222
220
<a name="l00236"></a><a class="code" href="class_qwt_plot_layout.html#11667dad6675a7a58cc60ab1597b1203">00236</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_layout.html#11667dad6675a7a58cc60ab1597b1203">QwtPlotLayout::setCanvasMargin</a>(<span class="keywordtype">int</span> margin, <span class="keywordtype">int</span> axis)
221
<a name="l00237"></a>00237 {
222
<a name="l00238"></a>00238 <span class="keywordflow">if</span> ( margin < -1 )
223
<a name="l00239"></a>00239 margin = -1;
224
<a name="l00240"></a>00240
225
<a name="l00241"></a>00241 <span class="keywordflow">if</span> ( axis == -1 )
226
<a name="l00242"></a>00242 {
227
<a name="l00243"></a>00243 <span class="keywordflow">for</span> (axis = 0; axis < QwtPlot::axisCnt; axis++)
228
<a name="l00244"></a>00244 d_data->canvasMargin[axis] = margin;
229
<a name="l00245"></a>00245 }
230
<a name="l00246"></a>00246 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( axis >= 0 || axis < QwtPlot::axisCnt )
231
<a name="l00247"></a>00247 d_data->canvasMargin[axis] = margin;
232
<a name="l00248"></a>00248 }
233
<a name="l00249"></a>00249
234
<a name="l00254"></a><a class="code" href="class_qwt_plot_layout.html#acf659495ecc45367eacf5f4b2aeca7d">00254</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot_layout.html#acf659495ecc45367eacf5f4b2aeca7d">QwtPlotLayout::canvasMargin</a>(<span class="keywordtype">int</span> axis)<span class="keyword"> const</span>
235
<a name="l00255"></a>00255 <span class="keyword"></span>{
236
<a name="l00256"></a>00256 <span class="keywordflow">if</span> ( axis < 0 || axis >= QwtPlot::axisCnt )
237
<a name="l00257"></a>00257 <span class="keywordflow">return</span> 0;
238
<a name="l00258"></a>00258
239
<a name="l00259"></a>00259 <span class="keywordflow">return</span> d_data->canvasMargin[axis];
240
<a name="l00260"></a>00260 }
241
<a name="l00261"></a>00261
242
<a name="l00274"></a><a class="code" href="class_qwt_plot_layout.html#147fcf4c59b34779b5a7dc7361a3b6c3">00274</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_layout.html#147fcf4c59b34779b5a7dc7361a3b6c3">QwtPlotLayout::setAlignCanvasToScales</a>(<span class="keywordtype">bool</span> alignCanvasToScales)
243
<a name="l00275"></a>00275 {
244
<a name="l00276"></a>00276 d_data->alignCanvasToScales = alignCanvasToScales;
245
<a name="l00277"></a>00277 }
246
<a name="l00278"></a>00278
247
<a name="l00288"></a><a class="code" href="class_qwt_plot_layout.html#b0200ba639cfd0f31b798d6aa9b6bba7">00288</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot_layout.html#b0200ba639cfd0f31b798d6aa9b6bba7">QwtPlotLayout::alignCanvasToScales</a>()<span class="keyword"> const</span>
248
<a name="l00289"></a>00289 <span class="keyword"></span>{
249
<a name="l00290"></a>00290 <span class="keywordflow">return</span> d_data->alignCanvasToScales;
250
<a name="l00291"></a>00291 }
251
<a name="l00292"></a>00292
252
<a name="l00300"></a><a class="code" href="class_qwt_plot_layout.html#6508553ec1d66bede49e7767526c3d03">00300</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_layout.html#6508553ec1d66bede49e7767526c3d03">QwtPlotLayout::setSpacing</a>(<span class="keywordtype">int</span> spacing)
253
<a name="l00301"></a>00301 {
254
<a name="l00302"></a>00302 d_data->spacing = qwtMax(0, spacing);
255
<a name="l00303"></a>00303 }
256
<a name="l00304"></a>00304
257
<a name="l00309"></a><a class="code" href="class_qwt_plot_layout.html#e93650a8f3208578f87348334b77a282">00309</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot_layout.html#e93650a8f3208578f87348334b77a282">QwtPlotLayout::spacing</a>()<span class="keyword"> const</span>
258
<a name="l00310"></a>00310 <span class="keyword"></span>{
259
<a name="l00311"></a>00311 <span class="keywordflow">return</span> d_data->spacing;
260
<a name="l00312"></a>00312 }
261
<a name="l00313"></a>00313
262
<a name="l00327"></a><a class="code" href="class_qwt_plot_layout.html#11c9695a68f95135841cb23212589f18">00327</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_layout.html#11c9695a68f95135841cb23212589f18">QwtPlotLayout::setLegendPosition</a>(<a class="code" href="class_qwt_plot.html#31aacb65b5c049dde8c34a0d8482661b">QwtPlot::LegendPosition</a> pos, <span class="keywordtype">double</span> ratio)
263
<a name="l00328"></a>00328 {
264
<a name="l00329"></a>00329 <span class="keywordflow">if</span> ( ratio > 1.0 )
265
<a name="l00330"></a>00330 ratio = 1.0;
266
<a name="l00331"></a>00331
267
<a name="l00332"></a>00332 <span class="keywordflow">switch</span>(pos)
268
<a name="l00333"></a>00333 {
269
<a name="l00334"></a>00334 <span class="keywordflow">case</span> QwtPlot::TopLegend:
270
<a name="l00335"></a>00335 <span class="keywordflow">case</span> QwtPlot::BottomLegend:
271
<a name="l00336"></a>00336 <span class="keywordflow">if</span> ( ratio <= 0.0 )
272
<a name="l00337"></a>00337 ratio = 0.33;
273
<a name="l00338"></a>00338 d_data->legendRatio = ratio;
274
<a name="l00339"></a>00339 d_data->legendPos = pos;
275
<a name="l00340"></a>00340 <span class="keywordflow">break</span>;
276
<a name="l00341"></a>00341 <span class="keywordflow">case</span> QwtPlot::LeftLegend:
277
<a name="l00342"></a>00342 <span class="keywordflow">case</span> QwtPlot::RightLegend:
278
<a name="l00343"></a>00343 <span class="keywordflow">if</span> ( ratio <= 0.0 )
279
<a name="l00344"></a>00344 ratio = 0.5;
280
<a name="l00345"></a>00345 d_data->legendRatio = ratio;
281
<a name="l00346"></a>00346 d_data->legendPos = pos;
282
<a name="l00347"></a>00347 <span class="keywordflow">break</span>;
283
<a name="l00348"></a>00348 <span class="keywordflow">case</span> QwtPlot::ExternalLegend:
284
<a name="l00349"></a>00349 d_data->legendRatio = ratio; <span class="comment">// meaningless</span>
285
<a name="l00350"></a>00350 d_data->legendPos = pos;
286
<a name="l00351"></a>00351 <span class="keywordflow">default</span>:
287
<a name="l00352"></a>00352 <span class="keywordflow">break</span>;
288
<a name="l00353"></a>00353 }
289
<a name="l00354"></a>00354 }
290
<a name="l00355"></a>00355
291
<a name="l00364"></a><a class="code" href="class_qwt_plot_layout.html#001f1eca91803d0eaa9548efc50879eb">00364</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_layout.html#11c9695a68f95135841cb23212589f18">QwtPlotLayout::setLegendPosition</a>(<a class="code" href="class_qwt_plot.html#31aacb65b5c049dde8c34a0d8482661b">QwtPlot::LegendPosition</a> pos)
292
<a name="l00365"></a>00365 {
293
<a name="l00366"></a>00366 <a class="code" href="class_qwt_plot_layout.html#11c9695a68f95135841cb23212589f18">setLegendPosition</a>(pos, 0.0);
294
<a name="l00367"></a>00367 }
295
<a name="l00368"></a>00368
296
<a name="l00374"></a><a class="code" href="class_qwt_plot_layout.html#6351a18b76e22d9e83d682d203599afc">00374</a> <a class="code" href="class_qwt_plot.html#31aacb65b5c049dde8c34a0d8482661b">QwtPlot::LegendPosition</a> <a class="code" href="class_qwt_plot_layout.html#6351a18b76e22d9e83d682d203599afc">QwtPlotLayout::legendPosition</a>()<span class="keyword"> const</span>
297
<a name="l00375"></a>00375 <span class="keyword"></span>{
298
<a name="l00376"></a>00376 <span class="keywordflow">return</span> d_data->legendPos;
299
<a name="l00377"></a>00377 }
300
<a name="l00378"></a>00378
301
<a name="l00388"></a><a class="code" href="class_qwt_plot_layout.html#abe9f952046139667e055c661bee4dbb">00388</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_layout.html#abe9f952046139667e055c661bee4dbb">QwtPlotLayout::setLegendRatio</a>(<span class="keywordtype">double</span> ratio)
302
<a name="l00389"></a>00389 {
303
<a name="l00390"></a>00390 <a class="code" href="class_qwt_plot_layout.html#11c9695a68f95135841cb23212589f18">setLegendPosition</a>(<a class="code" href="class_qwt_plot_layout.html#6351a18b76e22d9e83d682d203599afc">legendPosition</a>(), ratio);
304
<a name="l00391"></a>00391 }
305
<a name="l00392"></a>00392
306
<a name="l00397"></a><a class="code" href="class_qwt_plot_layout.html#6d5d4e568ad74010742e1fdcfc1c7672">00397</a> <span class="keywordtype">double</span> <a class="code" href="class_qwt_plot_layout.html#6d5d4e568ad74010742e1fdcfc1c7672">QwtPlotLayout::legendRatio</a>()<span class="keyword"> const</span>
307
<a name="l00398"></a>00398 <span class="keyword"></span>{
308
<a name="l00399"></a>00399 <span class="keywordflow">return</span> d_data->legendRatio;
309
<a name="l00400"></a>00400 }
310
<a name="l00401"></a>00401
311
<a name="l00407"></a><a class="code" href="class_qwt_plot_layout.html#f6f48a4705eb7aa7616a9e1da98e2d14">00407</a> <span class="keyword">const</span> QRect &<a class="code" href="class_qwt_plot_layout.html#f6f48a4705eb7aa7616a9e1da98e2d14">QwtPlotLayout::titleRect</a>()<span class="keyword"> const</span>
312
<a name="l00408"></a>00408 <span class="keyword"></span>{
313
<a name="l00409"></a>00409 <span class="keywordflow">return</span> d_data->titleRect;
314
<a name="l00410"></a>00410 }
315
<a name="l00411"></a>00411
316
<a name="l00417"></a><a class="code" href="class_qwt_plot_layout.html#f3f630625686721b521a8cd3c015bcbf">00417</a> <span class="keyword">const</span> QRect &<a class="code" href="class_qwt_plot_layout.html#f3f630625686721b521a8cd3c015bcbf">QwtPlotLayout::legendRect</a>()<span class="keyword"> const</span>
317
<a name="l00418"></a>00418 <span class="keyword"></span>{
318
<a name="l00419"></a>00419 <span class="keywordflow">return</span> d_data->legendRect;
319
<a name="l00420"></a>00420 }
320
<a name="l00421"></a>00421
321
<a name="l00428"></a><a class="code" href="class_qwt_plot_layout.html#87154a8c0f12698113bf8990a7d579f6">00428</a> <span class="keyword">const</span> QRect &<a class="code" href="class_qwt_plot_layout.html#87154a8c0f12698113bf8990a7d579f6">QwtPlotLayout::scaleRect</a>(<span class="keywordtype">int</span> axis)<span class="keyword"> const</span>
322
<a name="l00429"></a>00429 <span class="keyword"></span>{
323
<a name="l00430"></a>00430 <span class="keywordflow">if</span> ( axis < 0 || axis >= QwtPlot::axisCnt )
324
<a name="l00431"></a>00431 {
325
<a name="l00432"></a>00432 <span class="keyword">static</span> QRect dummyRect;
326
<a name="l00433"></a>00433 <span class="keywordflow">return</span> dummyRect;
327
<a name="l00434"></a>00434 }
328
<a name="l00435"></a>00435 <span class="keywordflow">return</span> d_data->scaleRect[axis];
329
<a name="l00436"></a>00436 }
330
<a name="l00437"></a>00437
331
<a name="l00443"></a><a class="code" href="class_qwt_plot_layout.html#244d79c1d635630b5d160053b62ae9f3">00443</a> <span class="keyword">const</span> QRect &<a class="code" href="class_qwt_plot_layout.html#244d79c1d635630b5d160053b62ae9f3">QwtPlotLayout::canvasRect</a>()<span class="keyword"> const</span>
332
<a name="l00444"></a>00444 <span class="keyword"></span>{
333
<a name="l00445"></a>00445 <span class="keywordflow">return</span> d_data->canvasRect;
334
<a name="l00446"></a>00446 }
335
<a name="l00447"></a>00447
336
<a name="l00452"></a><a class="code" href="class_qwt_plot_layout.html#44ce72879951571ffe4daa95be0ec242">00452</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_layout.html#44ce72879951571ffe4daa95be0ec242">QwtPlotLayout::invalidate</a>()
337
<a name="l00453"></a>00453 {
338
<a name="l00454"></a>00454 d_data->titleRect = d_data->legendRect = d_data->canvasRect = QRect();
339
<a name="l00455"></a>00455 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> axis = 0; axis < QwtPlot::axisCnt; axis++ )
340
<a name="l00456"></a>00456 d_data->scaleRect[axis] = QRect();
341
<a name="l00457"></a>00457 }
342
<a name="l00458"></a>00458
343
<a name="l00464"></a><a class="code" href="class_qwt_plot_layout.html#068a12c510998760c727a095f5b055fe">00464</a> QSize <a class="code" href="class_qwt_plot_layout.html#068a12c510998760c727a095f5b055fe">QwtPlotLayout::minimumSizeHint</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_plot.html">QwtPlot</a> *plot)<span class="keyword"> const</span>
344
<a name="l00465"></a>00465 <span class="keyword"></span>{
345
<a name="l00466"></a>00466 <span class="keyword">class </span>ScaleData
346
<a name="l00467"></a>00467 {
347
<a name="l00468"></a>00468 <span class="keyword">public</span>:
348
<a name="l00469"></a>00469 ScaleData()
349
<a name="l00470"></a>00470 {
350
<a name="l00471"></a>00471 w = h = minLeft = minRight = tickOffset = 0;
351
<a name="l00472"></a>00472 }
352
<a name="l00473"></a>00473
353
<a name="l00474"></a>00474 <span class="keywordtype">int</span> w;
354
<a name="l00475"></a>00475 <span class="keywordtype">int</span> h;
355
<a name="l00476"></a>00476 <span class="keywordtype">int</span> minLeft;
356
<a name="l00477"></a>00477 <span class="keywordtype">int</span> minRight;
357
<a name="l00478"></a>00478 <span class="keywordtype">int</span> tickOffset;
358
<a name="l00479"></a>00479 } scaleData[QwtPlot::axisCnt];
359
<a name="l00480"></a>00480
360
<a name="l00481"></a>00481 <span class="keywordtype">int</span> canvasBorder[QwtPlot::axisCnt];
361
<a name="l00482"></a>00482
362
<a name="l00483"></a>00483 <span class="keywordtype">int</span> axis;
363
<a name="l00484"></a>00484 <span class="keywordflow">for</span> ( axis = 0; axis < QwtPlot::axisCnt; axis++ )
364
<a name="l00485"></a>00485 {
365
<a name="l00486"></a>00486 <span class="keywordflow">if</span> ( plot-><a class="code" href="class_qwt_plot.html#ac5107a1ec8836b53f084a5b1bb8cc43">axisEnabled</a>(axis) )
366
<a name="l00487"></a>00487 {
367
<a name="l00488"></a>00488 <span class="keyword">const</span> <a class="code" href="class_qwt_scale_widget.html">QwtScaleWidget</a> *scl = plot-><a class="code" href="class_qwt_plot.html#6b495d9b17962be6e098026441a1f7b8">axisWidget</a>(axis);
368
<a name="l00489"></a>00489 ScaleData &sd = scaleData[axis];
369
<a name="l00490"></a>00490
370
<a name="l00491"></a>00491 <span class="keyword">const</span> QSize hint = scl-><a class="code" href="class_qwt_scale_widget.html#ee41cd1b3eff4cf06559e7a36baee5a5">minimumSizeHint</a>();
371
<a name="l00492"></a>00492 sd.w = hint.width();
372
<a name="l00493"></a>00493 sd.h = hint.height();
373
<a name="l00494"></a>00494 scl->getBorderDistHint(sd.minLeft, sd.minRight);
374
<a name="l00495"></a>00495 sd.tickOffset = scl->margin();
375
<a name="l00496"></a>00496 <span class="keywordflow">if</span> ( scl->scaleDraw()->hasComponent(QwtAbstractScaleDraw::Ticks) )
376
<a name="l00497"></a>00497 sd.tickOffset += scl->scaleDraw()->majTickLength();
377
<a name="l00498"></a>00498 }
378
<a name="l00499"></a>00499
379
<a name="l00500"></a>00500 canvasBorder[axis] = plot-><a class="code" href="class_qwt_plot.html#afcc82150034fbeb393ceb9f54ba2f1a">canvas</a>()->frameWidth() +
380
<a name="l00501"></a>00501 d_data->canvasMargin[axis] + 1;
381
<a name="l00502"></a>00502
382
<a name="l00503"></a>00503 }
383
<a name="l00504"></a>00504
384
<a name="l00505"></a>00505
385
<a name="l00506"></a>00506 <span class="keywordflow">for</span> ( axis = 0; axis < QwtPlot::axisCnt; axis++ )
386
<a name="l00507"></a>00507 {
387
<a name="l00508"></a>00508 ScaleData &sd = scaleData[axis];
388
<a name="l00509"></a>00509 <span class="keywordflow">if</span> ( sd.w && (axis == QwtPlot::xBottom || axis == QwtPlot::xTop) )
389
<a name="l00510"></a>00510 {
390
<a name="l00511"></a>00511 if ( (sd.minLeft > canvasBorder[QwtPlot::yLeft])
391
<a name="l00512"></a>00512 && scaleData[QwtPlot::yLeft].w )
392
<a name="l00513"></a>00513 {
393
<a name="l00514"></a>00514 <span class="keywordtype">int</span> shiftLeft = sd.minLeft - canvasBorder[QwtPlot::yLeft];
394
<a name="l00515"></a>00515 if ( shiftLeft > scaleData[QwtPlot::yLeft].w )
395
<a name="l00516"></a>00516 shiftLeft = scaleData[QwtPlot::yLeft].w;
396
<a name="l00517"></a>00517
397
<a name="l00518"></a>00518 sd.w -= shiftLeft;
398
<a name="l00519"></a>00519 }
399
<a name="l00520"></a>00520 <span class="keywordflow">if</span> ( (sd.minRight > canvasBorder[QwtPlot::yRight])
400
<a name="l00521"></a>00521 && scaleData[QwtPlot::yRight].w )
401
<a name="l00522"></a>00522 {
402
<a name="l00523"></a>00523 <span class="keywordtype">int</span> shiftRight = sd.minRight - canvasBorder[QwtPlot::yRight];
403
<a name="l00524"></a>00524 if ( shiftRight > scaleData[QwtPlot::yRight].w )
404
<a name="l00525"></a>00525 shiftRight = scaleData[QwtPlot::yRight].w;
405
<a name="l00526"></a>00526
406
<a name="l00527"></a>00527 sd.w -= shiftRight;
407
<a name="l00528"></a>00528 }
408
<a name="l00529"></a>00529 }
409
<a name="l00530"></a>00530
410
<a name="l00531"></a>00531 <span class="keywordflow">if</span> ( sd.h && (axis == QwtPlot::yLeft || axis == QwtPlot::yRight) )
411
<a name="l00532"></a>00532 {
412
<a name="l00533"></a>00533 if ( (sd.minLeft > canvasBorder[QwtPlot::xBottom]) &&
413
<a name="l00534"></a>00534 scaleData[QwtPlot::xBottom].h )
414
<a name="l00535"></a>00535 {
415
<a name="l00536"></a>00536 <span class="keywordtype">int</span> shiftBottom = sd.minLeft - canvasBorder[QwtPlot::xBottom];
416
<a name="l00537"></a>00537 if ( shiftBottom > scaleData[QwtPlot::xBottom].tickOffset )
417
<a name="l00538"></a>00538 shiftBottom = scaleData[QwtPlot::xBottom].tickOffset;
418
<a name="l00539"></a>00539
419
<a name="l00540"></a>00540 sd.h -= shiftBottom;
420
<a name="l00541"></a>00541 }
421
<a name="l00542"></a>00542 <span class="keywordflow">if</span> ( (sd.minLeft > canvasBorder[QwtPlot::xTop]) &&
422
<a name="l00543"></a>00543 scaleData[QwtPlot::xTop].h )
423
<a name="l00544"></a>00544 {
424
<a name="l00545"></a>00545 <span class="keywordtype">int</span> shiftTop = sd.minRight - canvasBorder[QwtPlot::xTop];
425
<a name="l00546"></a>00546 if ( shiftTop > scaleData[QwtPlot::xTop].tickOffset )
426
<a name="l00547"></a>00547 shiftTop = scaleData[QwtPlot::xTop].tickOffset;
427
<a name="l00548"></a>00548
428
<a name="l00549"></a>00549 sd.h -= shiftTop;
429
<a name="l00550"></a>00550 }
430
<a name="l00551"></a>00551 }
431
<a name="l00552"></a>00552 }
432
<a name="l00553"></a>00553
433
<a name="l00554"></a>00554 <span class="keyword">const</span> <a class="code" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> *canvas = plot-><a class="code" href="class_qwt_plot.html#afcc82150034fbeb393ceb9f54ba2f1a">canvas</a>();
434
<a name="l00555"></a>00555 <span class="keyword">const</span> QSize minCanvasSize = canvas->minimumSize();
435
<a name="l00556"></a>00556
436
<a name="l00557"></a>00557 <span class="keywordtype">int</span> w = scaleData[QwtPlot::yLeft].w + scaleData[QwtPlot::yRight].w;
437
<a name="l00558"></a>00558 <span class="keywordtype">int</span> cw = qwtMax(scaleData[QwtPlot::xBottom].w, scaleData[QwtPlot::xTop].w)
438
<a name="l00559"></a>00559 + 2 * (canvas->frameWidth() + 1);
439
<a name="l00560"></a>00560 w += qwtMax(cw, minCanvasSize.width());
440
<a name="l00561"></a>00561
441
<a name="l00562"></a>00562 <span class="keywordtype">int</span> h = scaleData[QwtPlot::xBottom].h + scaleData[QwtPlot::xTop].h;
442
<a name="l00563"></a>00563 <span class="keywordtype">int</span> ch = qwtMax(scaleData[QwtPlot::yLeft].h, scaleData[QwtPlot::yRight].h)
443
<a name="l00564"></a>00564 + 2 * (canvas->frameWidth() + 1);
444
<a name="l00565"></a>00565 h += qwtMax(ch, minCanvasSize.height());
445
<a name="l00566"></a>00566
446
<a name="l00567"></a>00567 <span class="keyword">const</span> <a class="code" href="class_qwt_text_label.html">QwtTextLabel</a> *title = plot-><a class="code" href="class_qwt_plot.html#c39356b86ed70ebf256a8ae964910206">titleLabel</a>();
447
<a name="l00568"></a>00568 <span class="keywordflow">if</span> (title && !title->text().isEmpty())
448
<a name="l00569"></a>00569 {
449
<a name="l00570"></a>00570 <span class="comment">// If only QwtPlot::yLeft or QwtPlot::yRight is showing, </span>
450
<a name="l00571"></a>00571 <span class="comment">// we center on the plot canvas.</span>
451
<a name="l00572"></a>00572 <span class="keyword">const</span> <span class="keywordtype">bool</span> centerOnCanvas = !(plot-><a class="code" href="class_qwt_plot.html#ac5107a1ec8836b53f084a5b1bb8cc43">axisEnabled</a>(QwtPlot::yLeft)
452
<a name="l00573"></a>00573 && plot-><a class="code" href="class_qwt_plot.html#ac5107a1ec8836b53f084a5b1bb8cc43">axisEnabled</a>(QwtPlot::yRight));
453
<a name="l00574"></a>00574
454
<a name="l00575"></a>00575 <span class="keywordtype">int</span> titleW = w;
455
<a name="l00576"></a>00576 <span class="keywordflow">if</span> ( centerOnCanvas )
456
<a name="l00577"></a>00577 {
457
<a name="l00578"></a>00578 titleW -= scaleData[QwtPlot::yLeft].w
458
<a name="l00579"></a>00579 + scaleData[QwtPlot::yRight].w;
459
<a name="l00580"></a>00580 }
460
<a name="l00581"></a>00581
461
<a name="l00582"></a>00582 <span class="keywordtype">int</span> titleH = title-><a class="code" href="class_qwt_text_label.html#de1867a2c9308f2235cfacf675fa1d4c">heightForWidth</a>(titleW);
462
<a name="l00583"></a>00583 <span class="keywordflow">if</span> ( titleH > titleW ) <span class="comment">// Compensate for a long title</span>
463
<a name="l00584"></a>00584 {
464
<a name="l00585"></a>00585 w = titleW = titleH;
465
<a name="l00586"></a>00586 <span class="keywordflow">if</span> ( centerOnCanvas )
466
<a name="l00587"></a>00587 {
467
<a name="l00588"></a>00588 w += scaleData[QwtPlot::yLeft].w
468
<a name="l00589"></a>00589 + scaleData[QwtPlot::yRight].w;
469
<a name="l00590"></a>00590 }
470
<a name="l00591"></a>00591
471
<a name="l00592"></a>00592 titleH = title->heightForWidth(titleW);
472
<a name="l00593"></a>00593 }
473
<a name="l00594"></a>00594 h += titleH + d_data->spacing;
474
<a name="l00595"></a>00595 }
475
<a name="l00596"></a>00596
476
<a name="l00597"></a>00597 <span class="comment">// Compute the legend contribution</span>
477
<a name="l00598"></a>00598
478
<a name="l00599"></a>00599 <span class="keyword">const</span> <a class="code" href="class_qwt_legend.html">QwtLegend</a> *legend = plot-><a class="code" href="class_qwt_plot.html#ab1f2cf0e567e09a4c4bce3181c03ba0">legend</a>();
479
<a name="l00600"></a>00600 <span class="keywordflow">if</span> ( d_data->legendPos != QwtPlot::ExternalLegend
480
<a name="l00601"></a>00601 && legend && !legend-><a class="code" href="class_qwt_legend.html#6ff50cb1e388a7da2a59709eef83be20">isEmpty</a>() )
481
<a name="l00602"></a>00602 {
482
<a name="l00603"></a>00603 <span class="keywordflow">if</span> ( d_data->legendPos == QwtPlot::LeftLegend
483
<a name="l00604"></a>00604 || d_data->legendPos == QwtPlot::RightLegend )
484
<a name="l00605"></a>00605 {
485
<a name="l00606"></a>00606 <span class="keywordtype">int</span> legendW = legend-><a class="code" href="class_qwt_legend.html#2517a7d9d78ab7a3892125ecf755f33f">sizeHint</a>().width();
486
<a name="l00607"></a>00607 <span class="keywordtype">int</span> legendH = legend-><a class="code" href="class_qwt_legend.html#273ec258209c42f57b154ff4da61e1d0">heightForWidth</a>(legendW);
487
<a name="l00608"></a>00608
488
<a name="l00609"></a>00609 <span class="keywordflow">if</span> ( legend->frameWidth() > 0 )
489
<a name="l00610"></a>00610 w += d_data->spacing;
490
<a name="l00611"></a>00611
491
<a name="l00612"></a>00612 if ( legendH > h )
492
<a name="l00613"></a>00613 legendW += legend-><a class="code" href="class_qwt_legend.html#494758e3d7ab688c59989da52e7e97cf">verticalScrollBar</a>()->sizeHint().height();
493
<a name="l00614"></a>00614
494
<a name="l00615"></a>00615 <span class="keywordflow">if</span> ( d_data->legendRatio < 1.0 )
495
<a name="l00616"></a>00616 legendW = qwtMin(legendW, <span class="keywordtype">int</span>(w / (1.0 - d_data->legendRatio)));
496
<a name="l00617"></a>00617
497
<a name="l00618"></a>00618 w += legendW;
498
<a name="l00619"></a>00619 }
499
<a name="l00620"></a>00620 <span class="keywordflow">else</span> <span class="comment">// QwtPlot::Top, QwtPlot::Bottom</span>
500
<a name="l00621"></a>00621 {
501
<a name="l00622"></a>00622 <span class="keywordtype">int</span> legendW = qwtMin(legend-><a class="code" href="class_qwt_legend.html#2517a7d9d78ab7a3892125ecf755f33f">sizeHint</a>().width(), w);
502
<a name="l00623"></a>00623 <span class="keywordtype">int</span> legendH = legend-><a class="code" href="class_qwt_legend.html#273ec258209c42f57b154ff4da61e1d0">heightForWidth</a>(legendW);
503
<a name="l00624"></a>00624
504
<a name="l00625"></a>00625 <span class="keywordflow">if</span> ( legend->frameWidth() > 0 )
505
<a name="l00626"></a>00626 h += d_data->spacing;
506
<a name="l00627"></a>00627
507
<a name="l00628"></a>00628 if ( d_data->legendRatio < 1.0 )
508
<a name="l00629"></a>00629 legendH = qwtMin(legendH, <span class="keywordtype">int</span>(h / (1.0 - d_data->legendRatio)));
509
<a name="l00630"></a>00630
510
<a name="l00631"></a>00631 h += legendH;
511
<a name="l00632"></a>00632 }
512
<a name="l00633"></a>00633 }
513
<a name="l00634"></a>00634
514
<a name="l00635"></a>00635 w += 2 * d_data->margin;
515
<a name="l00636"></a>00636 h += 2 * d_data->margin;
516
<a name="l00637"></a>00637
517
<a name="l00638"></a>00638 <span class="keywordflow">return</span> QSize( w, h );
518
<a name="l00639"></a>00639 }
519
<a name="l00640"></a>00640
520
<a name="l00648"></a><a class="code" href="class_qwt_plot_layout.html#3ac077f6dd97a28a81e2e443597d378c">00648</a> QRect <a class="code" href="class_qwt_plot_layout.html#3ac077f6dd97a28a81e2e443597d378c">QwtPlotLayout::layoutLegend</a>(<span class="keywordtype">int</span> options,
521
<a name="l00649"></a>00649 <span class="keyword">const</span> QRect &rect)<span class="keyword"> const</span>
522
<a name="l00650"></a>00650 <span class="keyword"></span>{
523
<a name="l00651"></a>00651 <span class="keyword">const</span> QSize hint(d_data->layoutData.legend.hint);
524
<a name="l00652"></a>00652
525
<a name="l00653"></a>00653 <span class="keywordtype">int</span> dim;
526
<a name="l00654"></a>00654 <span class="keywordflow">if</span> ( d_data->legendPos == QwtPlot::LeftLegend
527
<a name="l00655"></a>00655 || d_data->legendPos == QwtPlot::RightLegend )
528
<a name="l00656"></a>00656 {
529
<a name="l00657"></a>00657 <span class="comment">// We don't allow vertical legends to take more than</span>
530
<a name="l00658"></a>00658 <span class="comment">// half of the available space.</span>
531
<a name="l00659"></a>00659
532
<a name="l00660"></a>00660 dim = qwtMin(hint.width(), int(rect.width() * d_data->legendRatio));
533
<a name="l00661"></a>00661
534
<a name="l00662"></a>00662 <span class="keywordflow">if</span> ( !(options & IgnoreScrollbars) )
535
<a name="l00663"></a>00663 {
536
<a name="l00664"></a>00664 <span class="keywordflow">if</span> ( hint.height() > rect.height() )
537
<a name="l00665"></a>00665 {
538
<a name="l00666"></a>00666 <span class="comment">// The legend will need additional</span>
539
<a name="l00667"></a>00667 <span class="comment">// space for the vertical scrollbar. </span>
540
<a name="l00668"></a>00668
541
<a name="l00669"></a>00669 dim += d_data->layoutData.legend.vScrollBarWidth;
542
<a name="l00670"></a>00670 }
543
<a name="l00671"></a>00671 }
544
<a name="l00672"></a>00672 }
545
<a name="l00673"></a>00673 <span class="keywordflow">else</span>
546
<a name="l00674"></a>00674 {
547
<a name="l00675"></a>00675 dim = qwtMin(hint.height(), int(rect.height() * d_data->legendRatio));
548
<a name="l00676"></a>00676 dim = qwtMax(dim, d_data->layoutData.legend.hScrollBarHeight);
549
<a name="l00677"></a>00677 }
550
<a name="l00678"></a>00678
551
<a name="l00679"></a>00679 QRect legendRect = rect;
552
<a name="l00680"></a>00680 <span class="keywordflow">switch</span>(d_data->legendPos)
553
<a name="l00681"></a>00681 {
554
<a name="l00682"></a>00682 <span class="keywordflow">case</span> QwtPlot::LeftLegend:
555
<a name="l00683"></a>00683 legendRect.setWidth(dim);
556
<a name="l00684"></a>00684 <span class="keywordflow">break</span>;
557
<a name="l00685"></a>00685 <span class="keywordflow">case</span> QwtPlot::RightLegend:
558
<a name="l00686"></a>00686 legendRect.setX(rect.right() - dim + 1);
559
<a name="l00687"></a>00687 legendRect.setWidth(dim);
560
<a name="l00688"></a>00688 <span class="keywordflow">break</span>;
561
<a name="l00689"></a>00689 <span class="keywordflow">case</span> QwtPlot::TopLegend:
562
<a name="l00690"></a>00690 legendRect.setHeight(dim);
563
<a name="l00691"></a>00691 <span class="keywordflow">break</span>;
564
<a name="l00692"></a>00692 <span class="keywordflow">case</span> QwtPlot::BottomLegend:
565
<a name="l00693"></a>00693 legendRect.setY(rect.bottom() - dim + 1);
566
<a name="l00694"></a>00694 legendRect.setHeight(dim);
567
<a name="l00695"></a>00695 <span class="keywordflow">break</span>;
568
<a name="l00696"></a>00696 <span class="keywordflow">case</span> QwtPlot::ExternalLegend:
569
<a name="l00697"></a>00697 <span class="keywordflow">break</span>;
570
<a name="l00698"></a>00698 }
571
<a name="l00699"></a>00699
572
<a name="l00700"></a>00700 <span class="keywordflow">return</span> legendRect;
573
<a name="l00701"></a>00701 }
574
<a name="l00702"></a>00702
575
<a name="l00709"></a><a class="code" href="class_qwt_plot_layout.html#51893ccc912ef62d0e86d91dc8eaf357">00709</a> QRect <a class="code" href="class_qwt_plot_layout.html#51893ccc912ef62d0e86d91dc8eaf357">QwtPlotLayout::alignLegend</a>(<span class="keyword">const</span> QRect &canvasRect,
576
<a name="l00710"></a>00710 <span class="keyword">const</span> QRect &legendRect)<span class="keyword"> const</span>
577
<a name="l00711"></a>00711 <span class="keyword"></span>{
578
<a name="l00712"></a>00712 QRect alignedRect = legendRect;
579
<a name="l00713"></a>00713
580
<a name="l00714"></a>00714 <span class="keywordflow">if</span> ( d_data->legendPos == QwtPlot::BottomLegend
581
<a name="l00715"></a>00715 || d_data->legendPos == QwtPlot::TopLegend )
582
<a name="l00716"></a>00716 {
583
<a name="l00717"></a>00717 <span class="keywordflow">if</span> ( d_data->layoutData.legend.hint.width() < canvasRect.width() )
584
<a name="l00718"></a>00718 {
585
<a name="l00719"></a>00719 alignedRect.setX(canvasRect.x());
586
<a name="l00720"></a>00720 alignedRect.setWidth(canvasRect.width());
587
<a name="l00721"></a>00721 }
588
<a name="l00722"></a>00722 }
589
<a name="l00723"></a>00723 <span class="keywordflow">else</span>
590
<a name="l00724"></a>00724 {
591
<a name="l00725"></a>00725 <span class="keywordflow">if</span> ( d_data->layoutData.legend.hint.height() < canvasRect.height() )
592
<a name="l00726"></a>00726 {
593
<a name="l00727"></a>00727 alignedRect.setY(canvasRect.y());
594
<a name="l00728"></a>00728 alignedRect.setHeight(canvasRect.height());
595
<a name="l00729"></a>00729 }
596
<a name="l00730"></a>00730 }
597
<a name="l00731"></a>00731
598
<a name="l00732"></a>00732 <span class="keywordflow">return</span> alignedRect;
599
<a name="l00733"></a>00733 }
600
<a name="l00734"></a>00734
601
<a name="l00744"></a><a class="code" href="class_qwt_plot_layout.html#036716f40c899fb5e82d2866e8758c81">00744</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_layout.html#036716f40c899fb5e82d2866e8758c81">QwtPlotLayout::expandLineBreaks</a>(<span class="keywordtype">int</span> options, <span class="keyword">const</span> QRect &rect,
602
<a name="l00745"></a>00745 <span class="keywordtype">int</span> &dimTitle, <span class="keywordtype">int</span> dimAxis[QwtPlot::axisCnt])<span class="keyword"> const</span>
603
<a name="l00746"></a>00746 <span class="keyword"></span>{
604
<a name="l00747"></a>00747 dimTitle = 0;
605
<a name="l00748"></a>00748 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < QwtPlot::axisCnt; i++ )
606
<a name="l00749"></a>00749 dimAxis[i] = 0;
607
<a name="l00750"></a>00750
608
<a name="l00751"></a>00751 <span class="keywordtype">bool</span> done = <span class="keyword">false</span>;
609
<a name="l00752"></a>00752 <span class="keywordflow">while</span> (!done)
610
<a name="l00753"></a>00753 {
611
<a name="l00754"></a>00754 done = <span class="keyword">true</span>;
612
<a name="l00755"></a>00755
613
<a name="l00756"></a>00756 <span class="comment">// the size for the 4 axis depend on each other. Expanding</span>
614
<a name="l00757"></a>00757 <span class="comment">// the height of a horizontal axis will shrink the height</span>
615
<a name="l00758"></a>00758 <span class="comment">// for the vertical axis, shrinking the height of a vertical</span>
616
<a name="l00759"></a>00759 <span class="comment">// axis will result in a line break what will expand the</span>
617
<a name="l00760"></a>00760 <span class="comment">// width and results in shrinking the width of a horizontal</span>
618
<a name="l00761"></a>00761 <span class="comment">// axis what might result in a line break of a horizontal</span>
619
<a name="l00762"></a>00762 <span class="comment">// axis ... . So we loop as long until no size changes.</span>
620
<a name="l00763"></a>00763
621
<a name="l00764"></a>00764 <span class="keywordflow">if</span> ( !d_data->layoutData.title.text.isEmpty() )
622
<a name="l00765"></a>00765 {
623
<a name="l00766"></a>00766 <span class="keywordtype">int</span> w = rect.width();
624
<a name="l00767"></a>00767
625
<a name="l00768"></a>00768 <span class="keywordflow">if</span> ( d_data->layoutData.scale[QwtPlot::yLeft].isEnabled
626
<a name="l00769"></a>00769 != d_data->layoutData.scale[QwtPlot::yRight].isEnabled )
627
<a name="l00770"></a>00770 {
628
<a name="l00771"></a>00771 <span class="comment">// center to the canvas</span>
629
<a name="l00772"></a>00772 w -= dimAxis[QwtPlot::yLeft] + dimAxis[QwtPlot::yRight];
630
<a name="l00773"></a>00773 }
631
<a name="l00774"></a>00774
632
<a name="l00775"></a>00775 <span class="keywordtype">int</span> d = d_data->layoutData.title.text.heightForWidth(w);
633
<a name="l00776"></a>00776 <span class="keywordflow">if</span> ( !(options & IgnoreFrames) )
634
<a name="l00777"></a>00777 d += 2 * d_data->layoutData.title.frameWidth;
635
<a name="l00778"></a>00778
636
<a name="l00779"></a>00779 <span class="keywordflow">if</span> ( d > dimTitle )
637
<a name="l00780"></a>00780 {
638
<a name="l00781"></a>00781 dimTitle = d;
639
<a name="l00782"></a>00782 done = <span class="keyword">false</span>;
640
<a name="l00783"></a>00783 }
641
<a name="l00784"></a>00784 }
642
<a name="l00785"></a>00785
643
<a name="l00786"></a>00786 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> axis = 0; axis < QwtPlot::axisCnt; axis++ )
644
<a name="l00787"></a>00787 {
645
<a name="l00788"></a>00788 <span class="keywordtype">int</span> backboneOffset = d_data->canvasMargin[axis];
646
<a name="l00789"></a>00789 if ( !(options & IgnoreFrames) )
647
<a name="l00790"></a>00790 backboneOffset += d_data->layoutData.canvas.frameWidth;
648
<a name="l00791"></a>00791
649
<a name="l00792"></a>00792 <span class="keyword">const</span> <span class="keyword">struct</span> LayoutData::t_scaleData &scaleData =
650
<a name="l00793"></a>00793 d_data->layoutData.scale[axis];
651
<a name="l00794"></a>00794
652
<a name="l00795"></a>00795 if (scaleData.isEnabled)
653
<a name="l00796"></a>00796 {
654
<a name="l00797"></a>00797 <span class="keywordtype">int</span> length;
655
<a name="l00798"></a>00798 if ( axis == QwtPlot::xTop || axis == QwtPlot::xBottom )
656
<a name="l00799"></a>00799 {
657
<a name="l00800"></a>00800 length = rect.width() - dimAxis[QwtPlot::yLeft]
658
<a name="l00801"></a>00801 - dimAxis[QwtPlot::yRight];
659
<a name="l00802"></a>00802 length += qwtMin(dimAxis[QwtPlot::yLeft],
660
<a name="l00803"></a>00803 scaleData.start - backboneOffset);
661
<a name="l00804"></a>00804 length += qwtMin(dimAxis[QwtPlot::yRight],
662
<a name="l00805"></a>00805 scaleData.end - backboneOffset);
663
<a name="l00806"></a>00806 }
664
<a name="l00807"></a>00807 <span class="keywordflow">else</span> <span class="comment">// QwtPlot::yLeft, QwtPlot::yRight</span>
665
<a name="l00808"></a>00808 {
666
<a name="l00809"></a>00809 length = rect.height() - dimAxis[QwtPlot::xTop]
667
<a name="l00810"></a>00810 - dimAxis[QwtPlot::xBottom];
668
<a name="l00811"></a>00811
669
<a name="l00812"></a>00812 <span class="keywordflow">if</span> ( dimAxis[QwtPlot::xBottom] > 0 )
670
<a name="l00813"></a>00813 {
671
<a name="l00814"></a>00814 length += qwtMin(
672
<a name="l00815"></a>00815 d_data->layoutData.scale[QwtPlot::xBottom].tickOffset,
673
<a name="l00816"></a>00816 scaleData.start - backboneOffset);
674
<a name="l00817"></a>00817 }
675
<a name="l00818"></a>00818 <span class="keywordflow">if</span> ( dimAxis[QwtPlot::xTop] > 0 )
676
<a name="l00819"></a>00819 {
677
<a name="l00820"></a>00820 length += qwtMin(
678
<a name="l00821"></a>00821 d_data->layoutData.scale[QwtPlot::xTop].tickOffset,
679
<a name="l00822"></a>00822 scaleData.end - backboneOffset);
680
<a name="l00823"></a>00823 }
681
<a name="l00824"></a>00824
682
<a name="l00825"></a>00825 <span class="keywordflow">if</span> ( dimTitle > 0 )
683
<a name="l00826"></a>00826 length -= dimTitle + d_data->spacing;
684
<a name="l00827"></a>00827 }
685
<a name="l00828"></a>00828
686
<a name="l00829"></a>00829 <span class="keywordtype">int</span> d = scaleData.dimWithoutTitle;
687
<a name="l00830"></a>00830 <span class="keywordflow">if</span> ( !scaleData.scaleWidget->title().isEmpty() )
688
<a name="l00831"></a>00831 {
689
<a name="l00832"></a>00832 d += scaleData.scaleWidget->titleHeightForWidth(length);
690
<a name="l00833"></a>00833 }
691
<a name="l00834"></a>00834
692
<a name="l00835"></a>00835 <span class="keywordflow">if</span> ( d > dimAxis[axis] )
693
<a name="l00836"></a>00836 {
694
<a name="l00837"></a>00837 dimAxis[axis] = d;
695
<a name="l00838"></a>00838 done = <span class="keyword">false</span>;
696
<a name="l00839"></a>00839 }
697
<a name="l00840"></a>00840 }
698
<a name="l00841"></a>00841 }
699
<a name="l00842"></a>00842 }
700
<a name="l00843"></a>00843 }
701
<a name="l00844"></a>00844
702
<a name="l00850"></a><a class="code" href="class_qwt_plot_layout.html#a1ea394fce72c1c06f2aaf6fcd90db2a">00850</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_layout.html#a1ea394fce72c1c06f2aaf6fcd90db2a">QwtPlotLayout::alignScales</a>(<span class="keywordtype">int</span> options,
703
<a name="l00851"></a>00851 QRect &canvasRect, QRect scaleRect[QwtPlot::axisCnt])<span class="keyword"> const</span>
704
<a name="l00852"></a>00852 <span class="keyword"></span>{
705
<a name="l00853"></a>00853 <span class="keywordtype">int</span> axis;
706
<a name="l00854"></a>00854
707
<a name="l00855"></a>00855 <span class="keywordtype">int</span> backboneOffset[QwtPlot::axisCnt];
708
<a name="l00856"></a>00856 <span class="keywordflow">for</span> (axis = 0; axis < QwtPlot::axisCnt; axis++ )
709
<a name="l00857"></a>00857 {
710
<a name="l00858"></a>00858 backboneOffset[axis] = 0;
711
<a name="l00859"></a>00859 <span class="keywordflow">if</span> ( !d_data->alignCanvasToScales )
712
<a name="l00860"></a>00860 backboneOffset[axis] += d_data->canvasMargin[axis];
713
<a name="l00861"></a>00861 if ( !(options & IgnoreFrames) )
714
<a name="l00862"></a>00862 backboneOffset[axis] += d_data->layoutData.canvas.frameWidth;
715
<a name="l00863"></a>00863 }
716
<a name="l00864"></a>00864
717
<a name="l00865"></a>00865 <span class="keywordflow">for</span> (axis = 0; axis < QwtPlot::axisCnt; axis++ )
718
<a name="l00866"></a>00866 {
719
<a name="l00867"></a>00867 <span class="keywordflow">if</span> ( !scaleRect[axis].isValid() )
720
<a name="l00868"></a>00868 <span class="keywordflow">continue</span>;
721
<a name="l00869"></a>00869
722
<a name="l00870"></a>00870 <span class="keyword">const</span> <span class="keywordtype">int</span> startDist = d_data->layoutData.scale[axis].start;
723
<a name="l00871"></a>00871 <span class="keyword">const</span> <span class="keywordtype">int</span> endDist = d_data->layoutData.scale[axis].end;
724
<a name="l00872"></a>00872
725
<a name="l00873"></a>00873 QRect &axisRect = scaleRect[axis];
726
<a name="l00874"></a>00874
727
<a name="l00875"></a>00875 <span class="keywordflow">if</span> ( axis == QwtPlot::xTop || axis == QwtPlot::xBottom )
728
<a name="l00876"></a>00876 {
729
<a name="l00877"></a>00877 <span class="keyword">const</span> <span class="keywordtype">int</span> leftOffset = backboneOffset[QwtPlot::yLeft] - startDist;
730
<a name="l00878"></a>00878
731
<a name="l00879"></a>00879 <span class="keywordflow">if</span> ( scaleRect[QwtPlot::yLeft].isValid() )
732
<a name="l00880"></a>00880 {
733
<a name="l00881"></a>00881 <span class="keywordtype">int</span> minLeft = scaleRect[QwtPlot::yLeft].left();
734
<a name="l00882"></a>00882 <span class="keywordtype">int</span> left = axisRect.left() + leftOffset;
735
<a name="l00883"></a>00883 axisRect.setLeft(qwtMax(left, minLeft));
736
<a name="l00884"></a>00884 }
737
<a name="l00885"></a>00885 <span class="keywordflow">else</span>
738
<a name="l00886"></a>00886 {
739
<a name="l00887"></a>00887 <span class="keywordflow">if</span> ( d_data->alignCanvasToScales && leftOffset < 0 )
740
<a name="l00888"></a>00888 {
741
<a name="l00889"></a>00889 canvasRect.setLeft(qwtMax(canvasRect.left(),
742
<a name="l00890"></a>00890 axisRect.left() - leftOffset));
743
<a name="l00891"></a>00891 }
744
<a name="l00892"></a>00892 <span class="keywordflow">else</span>
745
<a name="l00893"></a>00893 {
746
<a name="l00894"></a>00894 <span class="keywordflow">if</span> ( leftOffset > 0 )
747
<a name="l00895"></a>00895 axisRect.setLeft(axisRect.left() + leftOffset);
748
<a name="l00896"></a>00896 }
749
<a name="l00897"></a>00897 }
750
<a name="l00898"></a>00898
751
<a name="l00899"></a>00899 <span class="keyword">const</span> <span class="keywordtype">int</span> rightOffset = backboneOffset[QwtPlot::yRight] - endDist;
752
<a name="l00900"></a>00900
753
<a name="l00901"></a>00901 <span class="keywordflow">if</span> ( scaleRect[QwtPlot::yRight].isValid() )
754
<a name="l00902"></a>00902 {
755
<a name="l00903"></a>00903 <span class="keywordtype">int</span> maxRight = scaleRect[QwtPlot::yRight].right();
756
<a name="l00904"></a>00904 <span class="keywordtype">int</span> right = axisRect.right() - rightOffset;
757
<a name="l00905"></a>00905 axisRect.setRight(qwtMin(right, maxRight));
758
<a name="l00906"></a>00906 }
759
<a name="l00907"></a>00907 <span class="keywordflow">else</span>
760
<a name="l00908"></a>00908 {
761
<a name="l00909"></a>00909 <span class="keywordflow">if</span> ( d_data->alignCanvasToScales && rightOffset < 0 )
762
<a name="l00910"></a>00910 {
763
<a name="l00911"></a>00911 canvasRect.setRight( qwtMin(canvasRect.right(),
764
<a name="l00912"></a>00912 axisRect.right() + rightOffset) );
765
<a name="l00913"></a>00913 }
766
<a name="l00914"></a>00914 <span class="keywordflow">else</span>
767
<a name="l00915"></a>00915 {
768
<a name="l00916"></a>00916 <span class="keywordflow">if</span> ( rightOffset > 0 )
769
<a name="l00917"></a>00917 axisRect.setRight(axisRect.right() - rightOffset);
770
<a name="l00918"></a>00918 }
771
<a name="l00919"></a>00919 }
772
<a name="l00920"></a>00920 }
773
<a name="l00921"></a>00921 <span class="keywordflow">else</span> <span class="comment">// QwtPlot::yLeft, QwtPlot::yRight</span>
774
<a name="l00922"></a>00922 {
775
<a name="l00923"></a>00923 <span class="keyword">const</span> <span class="keywordtype">int</span> bottomOffset =
776
<a name="l00924"></a>00924 backboneOffset[QwtPlot::xBottom] - endDist;
777
<a name="l00925"></a>00925
778
<a name="l00926"></a>00926 <span class="keywordflow">if</span> ( scaleRect[QwtPlot::xBottom].isValid() )
779
<a name="l00927"></a>00927 {
780
<a name="l00928"></a>00928 <span class="keywordtype">int</span> maxBottom = scaleRect[QwtPlot::xBottom].top() +
781
<a name="l00929"></a>00929 d_data->layoutData.scale[QwtPlot::xBottom].tickOffset;
782
<a name="l00930"></a>00930
783
<a name="l00931"></a>00931 <span class="keywordtype">int</span> bottom = axisRect.bottom() - bottomOffset;
784
<a name="l00932"></a>00932 axisRect.setBottom(qwtMin(bottom, maxBottom));
785
<a name="l00933"></a>00933 }
786
<a name="l00934"></a>00934 <span class="keywordflow">else</span>
787
<a name="l00935"></a>00935 {
788
<a name="l00936"></a>00936 <span class="keywordflow">if</span> ( d_data->alignCanvasToScales && bottomOffset < 0 )
789
<a name="l00937"></a>00937 {
790
<a name="l00938"></a>00938 canvasRect.setBottom(qwtMin(canvasRect.bottom(),
791
<a name="l00939"></a>00939 axisRect.bottom() + bottomOffset));
792
<a name="l00940"></a>00940 }
793
<a name="l00941"></a>00941 <span class="keywordflow">else</span>
794
<a name="l00942"></a>00942 {
795
<a name="l00943"></a>00943 <span class="keywordflow">if</span> ( bottomOffset > 0 )
796
<a name="l00944"></a>00944 axisRect.setBottom(axisRect.bottom() - bottomOffset);
797
<a name="l00945"></a>00945 }
798
<a name="l00946"></a>00946 }
799
<a name="l00947"></a>00947
800
<a name="l00948"></a>00948 <span class="keyword">const</span> <span class="keywordtype">int</span> topOffset = backboneOffset[QwtPlot::xTop] - startDist;
801
<a name="l00949"></a>00949
802
<a name="l00950"></a>00950 <span class="keywordflow">if</span> ( scaleRect[QwtPlot::xTop].isValid() )
803
<a name="l00951"></a>00951 {
804
<a name="l00952"></a>00952 <span class="keywordtype">int</span> minTop = scaleRect[QwtPlot::xTop].bottom() -
805
<a name="l00953"></a>00953 d_data->layoutData.scale[QwtPlot::xTop].tickOffset;
806
<a name="l00954"></a>00954
807
<a name="l00955"></a>00955 <span class="keywordtype">int</span> top = axisRect.top() + topOffset;
808
<a name="l00956"></a>00956 axisRect.setTop(qwtMax(top, minTop));
809
<a name="l00957"></a>00957 }
810
<a name="l00958"></a>00958 <span class="keywordflow">else</span>
811
<a name="l00959"></a>00959 {
812
<a name="l00960"></a>00960 <span class="keywordflow">if</span> ( d_data->alignCanvasToScales && topOffset < 0 )
813
<a name="l00961"></a>00961 {
814
<a name="l00962"></a>00962 canvasRect.setTop(qwtMax(canvasRect.top(),
815
<a name="l00963"></a>00963 axisRect.top() - topOffset));
816
<a name="l00964"></a>00964 }
817
<a name="l00965"></a>00965 <span class="keywordflow">else</span>
818
<a name="l00966"></a>00966 {
819
<a name="l00967"></a>00967 <span class="keywordflow">if</span> ( topOffset > 0 )
820
<a name="l00968"></a>00968 axisRect.setTop(axisRect.top() + topOffset);
821
<a name="l00969"></a>00969 }
822
<a name="l00970"></a>00970 }
823
<a name="l00971"></a>00971 }
824
<a name="l00972"></a>00972 }
825
<a name="l00973"></a>00973
826
<a name="l00974"></a>00974 <span class="keywordflow">if</span> ( d_data->alignCanvasToScales )
827
<a name="l00975"></a>00975 {
828
<a name="l00976"></a>00976 <span class="comment">/*</span>
829
<a name="l00977"></a>00977 <span class="comment"> The canvas has been aligned to the scale with largest</span>
830
<a name="l00978"></a>00978 <span class="comment"> border distances. Now we have to realign the other scale.</span>
831
<a name="l00979"></a>00979 <span class="comment"> */</span>
832
<a name="l00980"></a>00980
833
<a name="l00981"></a>00981 <span class="keywordflow">if</span> ( scaleRect[QwtPlot::xBottom].isValid() &&
834
<a name="l00982"></a>00982 scaleRect[QwtPlot::xTop].isValid() )
835
<a name="l00983"></a>00983 {
836
<a name="l00984"></a>00984 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> axis = QwtPlot::xBottom; axis <= QwtPlot::xTop; axis++ )
837
<a name="l00985"></a>00985 {
838
<a name="l00986"></a>00986 scaleRect[axis].setLeft(canvasRect.left() + 1
839
<a name="l00987"></a>00987 - d_data->layoutData.scale[axis].start);
840
<a name="l00988"></a>00988 scaleRect[axis].setRight(canvasRect.right() - 1
841
<a name="l00989"></a>00989 + d_data->layoutData.scale[axis].end);
842
<a name="l00990"></a>00990 }
843
<a name="l00991"></a>00991 }
844
<a name="l00992"></a>00992
845
<a name="l00993"></a>00993 <span class="keywordflow">if</span> ( scaleRect[QwtPlot::yLeft].isValid() &&
846
<a name="l00994"></a>00994 scaleRect[QwtPlot::yRight].isValid() )
847
<a name="l00995"></a>00995 {
848
<a name="l00996"></a>00996 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> axis = QwtPlot::yLeft; axis <= QwtPlot::yRight; axis++ )
849
<a name="l00997"></a>00997 {
850
<a name="l00998"></a>00998 scaleRect[axis].setTop(canvasRect.top() + 1
851
<a name="l00999"></a>00999 - d_data->layoutData.scale[axis].start);
852
<a name="l01000"></a>01000 scaleRect[axis].setBottom(canvasRect.bottom() - 1
853
<a name="l01001"></a>01001 + d_data->layoutData.scale[axis].end);
854
<a name="l01002"></a>01002 }
855
<a name="l01003"></a>01003 }
856
<a name="l01004"></a>01004 }
857
<a name="l01005"></a>01005 }
858
<a name="l01006"></a>01006
859
<a name="l01017"></a><a class="code" href="class_qwt_plot_layout.html#4ccba7e8e8a857cd1e16d2a68f9bcbcb">01017</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_layout.html#4ccba7e8e8a857cd1e16d2a68f9bcbcb">QwtPlotLayout::activate</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_plot.html">QwtPlot</a> *plot,
860
<a name="l01018"></a>01018 <span class="keyword">const</span> QRect &plotRect, <span class="keywordtype">int</span> options)
861
<a name="l01019"></a>01019 {
862
<a name="l01020"></a>01020 <a class="code" href="class_qwt_plot_layout.html#44ce72879951571ffe4daa95be0ec242">invalidate</a>();
863
<a name="l01021"></a>01021
864
<a name="l01022"></a>01022 QRect rect(plotRect); <span class="comment">// undistributed rest of the plot rect</span>
865
<a name="l01023"></a>01023
866
<a name="l01024"></a>01024 <span class="keywordflow">if</span> ( !(options & IgnoreMargin) )
867
<a name="l01025"></a>01025 {
868
<a name="l01026"></a>01026 <span class="comment">// subtract the margin</span>
869
<a name="l01027"></a>01027
870
<a name="l01028"></a>01028 rect.setRect(
871
<a name="l01029"></a>01029 rect.x() + d_data->margin,
872
<a name="l01030"></a>01030 rect.y() + d_data->margin,
873
<a name="l01031"></a>01031 rect.width() - 2 * d_data->margin,
874
<a name="l01032"></a>01032 rect.height() - 2 * d_data->margin
875
<a name="l01033"></a>01033 );
876
<a name="l01034"></a>01034 }
877
<a name="l01035"></a>01035
878
<a name="l01036"></a>01036 <span class="comment">// We extract all layout relevant data from the widgets,</span>
879
<a name="l01037"></a>01037 <span class="comment">// filter them through pfilter and save them to d_data->layoutData.</span>
880
<a name="l01038"></a>01038
881
<a name="l01039"></a>01039 d_data->layoutData.init(plot, rect);
882
<a name="l01040"></a>01040
883
<a name="l01041"></a>01041 <span class="keywordflow">if</span> (!(options & IgnoreLegend)
884
<a name="l01042"></a>01042 && d_data->legendPos != QwtPlot::ExternalLegend
885
<a name="l01043"></a>01043 && plot-><a class="code" href="class_qwt_plot.html#ab1f2cf0e567e09a4c4bce3181c03ba0">legend</a>() && !plot-><a class="code" href="class_qwt_plot.html#ab1f2cf0e567e09a4c4bce3181c03ba0">legend</a>()-><a class="code" href="class_qwt_legend.html#6ff50cb1e388a7da2a59709eef83be20">isEmpty</a>() )
886
<a name="l01044"></a>01044 {
887
<a name="l01045"></a>01045 d_data->legendRect = <a class="code" href="class_qwt_plot_layout.html#3ac077f6dd97a28a81e2e443597d378c">layoutLegend</a>(options, rect);
888
<a name="l01046"></a>01046
889
<a name="l01047"></a>01047 <span class="comment">// subtract d_data->legendRect from rect</span>
890
<a name="l01048"></a>01048
891
<a name="l01049"></a>01049 <span class="keyword">const</span> QRegion region(rect);
892
<a name="l01050"></a>01050 rect = region.subtract(d_data->legendRect).boundingRect();
893
<a name="l01051"></a>01051
894
<a name="l01052"></a>01052 <span class="keywordflow">if</span> ( d_data->layoutData.legend.frameWidth &&
895
<a name="l01053"></a>01053 !(options & IgnoreFrames ) )
896
<a name="l01054"></a>01054 {
897
<a name="l01055"></a>01055 <span class="comment">// In case of a frame we have to insert a spacing.</span>
898
<a name="l01056"></a>01056 <span class="comment">// Otherwise the leading of the font separates</span>
899
<a name="l01057"></a>01057 <span class="comment">// legend and scale/canvas</span>
900
<a name="l01058"></a>01058
901
<a name="l01059"></a>01059 <span class="keywordflow">switch</span>(d_data->legendPos)
902
<a name="l01060"></a>01060 {
903
<a name="l01061"></a>01061 <span class="keywordflow">case</span> QwtPlot::LeftLegend:
904
<a name="l01062"></a>01062 rect.setLeft(rect.left() + d_data->spacing);
905
<a name="l01063"></a>01063 <span class="keywordflow">break</span>;
906
<a name="l01064"></a>01064 <span class="keywordflow">case</span> QwtPlot::RightLegend:
907
<a name="l01065"></a>01065 rect.setRight(rect.right() - d_data->spacing);
908
<a name="l01066"></a>01066 <span class="keywordflow">break</span>;
909
<a name="l01067"></a>01067 <span class="keywordflow">case</span> QwtPlot::TopLegend:
910
<a name="l01068"></a>01068 rect.setTop(rect.top() + d_data->spacing);
911
<a name="l01069"></a>01069 <span class="keywordflow">break</span>;
912
<a name="l01070"></a>01070 <span class="keywordflow">case</span> QwtPlot::BottomLegend:
913
<a name="l01071"></a>01071 rect.setBottom(rect.bottom() - d_data->spacing);
914
<a name="l01072"></a>01072 <span class="keywordflow">break</span>;
915
<a name="l01073"></a>01073 <span class="keywordflow">case</span> QwtPlot::ExternalLegend:
916
<a name="l01074"></a>01074 <span class="keywordflow">break</span>; <span class="comment">// suppress compiler warning</span>
917
<a name="l01075"></a>01075 }
918
<a name="l01076"></a>01076 }
919
<a name="l01077"></a>01077 }
920
<a name="l01078"></a>01078
921
<a name="l01079"></a>01079 <span class="comment">/*</span>
922
<a name="l01080"></a>01080 <span class="comment"> +---+-----------+---+</span>
923
<a name="l01081"></a>01081 <span class="comment"> | Title |</span>
924
<a name="l01082"></a>01082 <span class="comment"> +---+-----------+---+</span>
925
<a name="l01083"></a>01083 <span class="comment"> | | Axis | |</span>
926
<a name="l01084"></a>01084 <span class="comment"> +---+-----------+---+</span>
927
<a name="l01085"></a>01085 <span class="comment"> | A | | A |</span>
928
<a name="l01086"></a>01086 <span class="comment"> | x | Canvas | x |</span>
929
<a name="l01087"></a>01087 <span class="comment"> | i | | i |</span>
930
<a name="l01088"></a>01088 <span class="comment"> | s | | s |</span>
931
<a name="l01089"></a>01089 <span class="comment"> +---+-----------+---+</span>
932
<a name="l01090"></a>01090 <span class="comment"> | | Axis | |</span>
933
<a name="l01091"></a>01091 <span class="comment"> +---+-----------+---+</span>
934
<a name="l01092"></a>01092 <span class="comment"> */</span>
935
<a name="l01093"></a>01093
936
<a name="l01094"></a>01094
937
<a name="l01095"></a>01095 <span class="comment">// axes and title include text labels. The height of each</span>
938
<a name="l01096"></a>01096 <span class="comment">// label depends on its line breaks, that depend on the width</span>
939
<a name="l01097"></a>01097 <span class="comment">// for the label. A line break in a horizontal text will reduce</span>
940
<a name="l01098"></a>01098 <span class="comment">// the available width for vertical texts and vice versa. </span>
941
<a name="l01099"></a>01099 <span class="comment">// expandLineBreaks finds the height/width for title and axes</span>
942
<a name="l01100"></a>01100 <span class="comment">// including all line breaks.</span>
943
<a name="l01101"></a>01101
944
<a name="l01102"></a>01102 <span class="keywordtype">int</span> dimTitle, dimAxes[QwtPlot::axisCnt];
945
<a name="l01103"></a>01103 expandLineBreaks(options, rect, dimTitle, dimAxes);
946
<a name="l01104"></a>01104
947
<a name="l01105"></a>01105 <span class="keywordflow">if</span> (dimTitle > 0 )
948
<a name="l01106"></a>01106 {
949
<a name="l01107"></a>01107 d_data->titleRect = QRect(rect.x(), rect.y(),
950
<a name="l01108"></a>01108 rect.width(), dimTitle);
951
<a name="l01109"></a>01109
952
<a name="l01110"></a>01110 <span class="keywordflow">if</span> ( d_data->layoutData.scale[QwtPlot::yLeft].isEnabled !=
953
<a name="l01111"></a>01111 d_data->layoutData.scale[QwtPlot::yRight].isEnabled )
954
<a name="l01112"></a>01112 {
955
<a name="l01113"></a>01113 <span class="comment">// if only one of the y axes is missing we align</span>
956
<a name="l01114"></a>01114 <span class="comment">// the title centered to the canvas</span>
957
<a name="l01115"></a>01115
958
<a name="l01116"></a>01116 d_data->titleRect.setX(rect.x() + dimAxes[QwtPlot::yLeft]);
959
<a name="l01117"></a>01117 d_data->titleRect.setWidth(rect.width()
960
<a name="l01118"></a>01118 - dimAxes[QwtPlot::yLeft] - dimAxes[QwtPlot::yRight]);
961
<a name="l01119"></a>01119 }
962
<a name="l01120"></a>01120
963
<a name="l01121"></a>01121 <span class="comment">// subtract title </span>
964
<a name="l01122"></a>01122 rect.setTop(rect.top() + dimTitle + d_data->spacing);
965
<a name="l01123"></a>01123 }
966
<a name="l01124"></a>01124
967
<a name="l01125"></a>01125 d_data->canvasRect.setRect(
968
<a name="l01126"></a>01126 rect.x() + dimAxes[QwtPlot::yLeft],
969
<a name="l01127"></a>01127 rect.y() + dimAxes[QwtPlot::xTop],
970
<a name="l01128"></a>01128 rect.width() - dimAxes[QwtPlot::yRight] - dimAxes[QwtPlot::yLeft],
971
<a name="l01129"></a>01129 rect.height() - dimAxes[QwtPlot::xBottom] - dimAxes[QwtPlot::xTop]);
972
<a name="l01130"></a>01130
973
<a name="l01131"></a>01131 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> axis = 0; axis < QwtPlot::axisCnt; axis++ )
974
<a name="l01132"></a>01132 {
975
<a name="l01133"></a>01133 <span class="comment">// set the rects for the axes</span>
976
<a name="l01134"></a>01134
977
<a name="l01135"></a>01135 <span class="keywordflow">if</span> ( dimAxes[axis] )
978
<a name="l01136"></a>01136 {
979
<a name="l01137"></a>01137 <span class="keywordtype">int</span> dim = dimAxes[axis];
980
<a name="l01138"></a>01138 QRect &scaleRect = d_data->scaleRect[axis];
981
<a name="l01139"></a>01139
982
<a name="l01140"></a>01140 scaleRect = d_data->canvasRect;
983
<a name="l01141"></a>01141 <span class="keywordflow">switch</span>(axis)
984
<a name="l01142"></a>01142 {
985
<a name="l01143"></a>01143 <span class="keywordflow">case</span> QwtPlot::yLeft:
986
<a name="l01144"></a>01144 scaleRect.setX(d_data->canvasRect.left() - dim);
987
<a name="l01145"></a>01145 scaleRect.setWidth(dim);
988
<a name="l01146"></a>01146 <span class="keywordflow">break</span>;
989
<a name="l01147"></a>01147 <span class="keywordflow">case</span> QwtPlot::yRight:
990
<a name="l01148"></a>01148 scaleRect.setX(d_data->canvasRect.right() + 1);
991
<a name="l01149"></a>01149 scaleRect.setWidth(dim);
992
<a name="l01150"></a>01150 <span class="keywordflow">break</span>;
993
<a name="l01151"></a>01151 <span class="keywordflow">case</span> QwtPlot::xBottom:
994
<a name="l01152"></a>01152 scaleRect.setY(d_data->canvasRect.bottom() + 1);
995
<a name="l01153"></a>01153 scaleRect.setHeight(dim);
996
<a name="l01154"></a>01154 <span class="keywordflow">break</span>;
997
<a name="l01155"></a>01155 <span class="keywordflow">case</span> QwtPlot::xTop:
998
<a name="l01156"></a>01156 scaleRect.setY(d_data->canvasRect.top() - dim);
999
<a name="l01157"></a>01157 scaleRect.setHeight(dim);
1000
<a name="l01158"></a>01158 <span class="keywordflow">break</span>;
1001
<a name="l01159"></a>01159 }
1002
<a name="l01160"></a>01160 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
1003
<a name="l01161"></a>01161 <span class="preprocessor"></span> scaleRect = scaleRect.normalize();
1004
<a name="l01162"></a>01162 <span class="preprocessor">#else</span>
1005
<a name="l01163"></a>01163 <span class="preprocessor"></span> scaleRect = scaleRect.normalized();
1006
<a name="l01164"></a>01164 <span class="preprocessor">#endif</span>
1007
<a name="l01165"></a>01165 <span class="preprocessor"></span> }
1008
<a name="l01166"></a>01166 }
1009
<a name="l01167"></a>01167
1010
<a name="l01168"></a>01168 <span class="comment">// +---+-----------+---+</span>
1011
<a name="l01169"></a>01169 <span class="comment">// | <- Axis -> |</span>
1012
<a name="l01170"></a>01170 <span class="comment">// +-^-+-----------+-^-+</span>
1013
<a name="l01171"></a>01171 <span class="comment">// | | | | | |</span>
1014
<a name="l01172"></a>01172 <span class="comment">// | | | |</span>
1015
<a name="l01173"></a>01173 <span class="comment">// | A | | A |</span>
1016
<a name="l01174"></a>01174 <span class="comment">// | x | Canvas | x |</span>
1017
<a name="l01175"></a>01175 <span class="comment">// | i | | i |</span>
1018
<a name="l01176"></a>01176 <span class="comment">// | s | | s |</span>
1019
<a name="l01177"></a>01177 <span class="comment">// | | | |</span>
1020
<a name="l01178"></a>01178 <span class="comment">// | | | | | |</span>
1021
<a name="l01179"></a>01179 <span class="comment">// +-V-+-----------+-V-+</span>
1022
<a name="l01180"></a>01180 <span class="comment">// | <- Axis -> |</span>
1023
<a name="l01181"></a>01181 <span class="comment">// +---+-----------+---+</span>
1024
<a name="l01182"></a>01182
1025
<a name="l01183"></a>01183 <span class="comment">// The ticks of the axes - not the labels above - should</span>
1026
<a name="l01184"></a>01184 <span class="comment">// be aligned to the canvas. So we try to use the empty</span>
1027
<a name="l01185"></a>01185 <span class="comment">// corners to extend the axes, so that the label texts</span>
1028
<a name="l01186"></a>01186 <span class="comment">// left/right of the min/max ticks are moved into them.</span>
1029
<a name="l01187"></a>01187
1030
<a name="l01188"></a>01188 alignScales(options, d_data->canvasRect, d_data->scaleRect);
1031
<a name="l01189"></a>01189
1032
<a name="l01190"></a>01190 <span class="keywordflow">if</span> (!d_data->legendRect.isEmpty() )
1033
<a name="l01191"></a>01191 {
1034
<a name="l01192"></a>01192 <span class="comment">// We prefer to align the legend to the canvas - not to</span>
1035
<a name="l01193"></a>01193 <span class="comment">// the complete plot - if possible.</span>
1036
<a name="l01194"></a>01194
1037
<a name="l01195"></a>01195 d_data->legendRect = alignLegend(d_data->canvasRect, d_data->legendRect);
1038
<a name="l01196"></a>01196 }
1039
<a name="l01197"></a>01197 }
1040
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Feb 26 21:22:37 2007 for Qwt User's Guide by
1041
<a href="http://www.doxygen.org/index.html">
1042
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.6 </small></address>
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qwt-5.0.1/doc/html/qwt__plot__layout_8cpp-source.html
