/usr/share/doc/python-pyqtgraph-doc/html/_modules/pyqtgraph/graphicsItems/LinearRegionItem.html is in python-pyqtgraph-doc 0.9.10-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>pyqtgraph.graphicsItems.LinearRegionItem — pyqtgraph 0.9.10 documentation</title>
<link rel="stylesheet" href="../../../_static/classic.css" type="text/css" />
<link rel="stylesheet" href="../../../_static/pygments.css" type="text/css" />
<script type="text/javascript">
var DOCUMENTATION_OPTIONS = {
URL_ROOT: '../../../',
VERSION: '0.9.10',
COLLAPSE_INDEX: false,
FILE_SUFFIX: '.html',
HAS_SOURCE: true
};
</script>
<script type="text/javascript" src="../../../_static/jquery.js"></script>
<script type="text/javascript" src="../../../_static/underscore.js"></script>
<script type="text/javascript" src="../../../_static/doctools.js"></script>
<link rel="top" title="pyqtgraph 0.9.10 documentation" href="../../../index.html" />
<link rel="up" title="pyqtgraph" href="../../pyqtgraph.html" />
</head>
<body role="document">
<div class="related" role="navigation" aria-label="related navigation">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../../../genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="../../../py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="nav-item nav-item-0"><a href="../../../index.html">pyqtgraph 0.9.10 documentation</a> »</li>
<li class="nav-item nav-item-1"><a href="../../index.html" >Module code</a> »</li>
<li class="nav-item nav-item-2"><a href="../../pyqtgraph.html" accesskey="U">pyqtgraph</a> »</li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body" role="main">
<h1>Source code for pyqtgraph.graphicsItems.LinearRegionItem</h1><div class="highlight"><pre>
<span class="kn">from</span> <span class="nn">..Qt</span> <span class="kn">import</span> <span class="n">QtGui</span><span class="p">,</span> <span class="n">QtCore</span>
<span class="kn">from</span> <span class="nn">.UIGraphicsItem</span> <span class="kn">import</span> <span class="n">UIGraphicsItem</span>
<span class="kn">from</span> <span class="nn">.InfiniteLine</span> <span class="kn">import</span> <span class="n">InfiniteLine</span>
<span class="kn">from</span> <span class="nn">..</span> <span class="kn">import</span> <span class="n">functions</span> <span class="k">as</span> <span class="n">fn</span>
<span class="kn">from</span> <span class="nn">..</span> <span class="kn">import</span> <span class="n">debug</span> <span class="k">as</span> <span class="n">debug</span>
<span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span><span class="s">'LinearRegionItem'</span><span class="p">]</span>
<div class="viewcode-block" id="LinearRegionItem"><a class="viewcode-back" href="../../../graphicsItems/linearregionitem.html#pyqtgraph.LinearRegionItem">[docs]</a><span class="k">class</span> <span class="nc">LinearRegionItem</span><span class="p">(</span><span class="n">UIGraphicsItem</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> **Bases:** :class:`UIGraphicsItem <pyqtgraph.UIGraphicsItem>`</span>
<span class="sd"> </span>
<span class="sd"> Used for marking a horizontal or vertical region in plots.</span>
<span class="sd"> The region can be dragged and is bounded by lines which can be dragged individually.</span>
<span class="sd"> </span>
<span class="sd"> =============================== =============================================================================</span>
<span class="sd"> **Signals:**</span>
<span class="sd"> sigRegionChangeFinished(self) Emitted when the user has finished dragging the region (or one of its lines)</span>
<span class="sd"> and when the region is changed programatically.</span>
<span class="sd"> sigRegionChanged(self) Emitted while the user is dragging the region (or one of its lines)</span>
<span class="sd"> and when the region is changed programatically.</span>
<span class="sd"> =============================== =============================================================================</span>
<span class="sd"> """</span>
<span class="n">sigRegionChangeFinished</span> <span class="o">=</span> <span class="n">QtCore</span><span class="o">.</span><span class="n">Signal</span><span class="p">(</span><span class="nb">object</span><span class="p">)</span>
<span class="n">sigRegionChanged</span> <span class="o">=</span> <span class="n">QtCore</span><span class="o">.</span><span class="n">Signal</span><span class="p">(</span><span class="nb">object</span><span class="p">)</span>
<span class="n">Vertical</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">Horizontal</span> <span class="o">=</span> <span class="mi">1</span>
<div class="viewcode-block" id="LinearRegionItem.__init__"><a class="viewcode-back" href="../../../graphicsItems/linearregionitem.html#pyqtgraph.LinearRegionItem.__init__">[docs]</a> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">values</span><span class="o">=</span><span class="p">[</span><span class="mi">0</span><span class="p">,</span><span class="mi">1</span><span class="p">],</span> <span class="n">orientation</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">brush</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">movable</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">bounds</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">"""Create a new LinearRegionItem.</span>
<span class="sd"> </span>
<span class="sd"> ============== =====================================================================</span>
<span class="sd"> **Arguments:**</span>
<span class="sd"> values A list of the positions of the lines in the region. These are not</span>
<span class="sd"> limits; limits can be set by specifying bounds.</span>
<span class="sd"> orientation Options are LinearRegionItem.Vertical or LinearRegionItem.Horizontal.</span>
<span class="sd"> If not specified it will be vertical.</span>
<span class="sd"> brush Defines the brush that fills the region. Can be any arguments that</span>
<span class="sd"> are valid for :func:`mkBrush <pyqtgraph.mkBrush>`. Default is</span>
<span class="sd"> transparent blue.</span>
<span class="sd"> movable If True, the region and individual lines are movable by the user; if</span>
<span class="sd"> False, they are static.</span>
<span class="sd"> bounds Optional [min, max] bounding values for the region</span>
<span class="sd"> ============== =====================================================================</span>
<span class="sd"> """</span>
<span class="n">UIGraphicsItem</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="k">if</span> <span class="n">orientation</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">orientation</span> <span class="o">=</span> <span class="n">LinearRegionItem</span><span class="o">.</span><span class="n">Vertical</span>
<span class="bp">self</span><span class="o">.</span><span class="n">orientation</span> <span class="o">=</span> <span class="n">orientation</span>
<span class="bp">self</span><span class="o">.</span><span class="n">bounds</span> <span class="o">=</span> <span class="n">QtCore</span><span class="o">.</span><span class="n">QRectF</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">blockLineSignal</span> <span class="o">=</span> <span class="bp">False</span>
<span class="bp">self</span><span class="o">.</span><span class="n">moving</span> <span class="o">=</span> <span class="bp">False</span>
<span class="bp">self</span><span class="o">.</span><span class="n">mouseHovering</span> <span class="o">=</span> <span class="bp">False</span>
<span class="k">if</span> <span class="n">orientation</span> <span class="o">==</span> <span class="n">LinearRegionItem</span><span class="o">.</span><span class="n">Horizontal</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lines</span> <span class="o">=</span> <span class="p">[</span>
<span class="n">InfiniteLine</span><span class="p">(</span><span class="n">QtCore</span><span class="o">.</span><span class="n">QPointF</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">values</span><span class="p">[</span><span class="mi">0</span><span class="p">]),</span> <span class="mi">0</span><span class="p">,</span> <span class="n">movable</span><span class="o">=</span><span class="n">movable</span><span class="p">,</span> <span class="n">bounds</span><span class="o">=</span><span class="n">bounds</span><span class="p">),</span>
<span class="n">InfiniteLine</span><span class="p">(</span><span class="n">QtCore</span><span class="o">.</span><span class="n">QPointF</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">values</span><span class="p">[</span><span class="mi">1</span><span class="p">]),</span> <span class="mi">0</span><span class="p">,</span> <span class="n">movable</span><span class="o">=</span><span class="n">movable</span><span class="p">,</span> <span class="n">bounds</span><span class="o">=</span><span class="n">bounds</span><span class="p">)]</span>
<span class="k">elif</span> <span class="n">orientation</span> <span class="o">==</span> <span class="n">LinearRegionItem</span><span class="o">.</span><span class="n">Vertical</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lines</span> <span class="o">=</span> <span class="p">[</span>
<span class="n">InfiniteLine</span><span class="p">(</span><span class="n">QtCore</span><span class="o">.</span><span class="n">QPointF</span><span class="p">(</span><span class="n">values</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="mi">0</span><span class="p">),</span> <span class="mi">90</span><span class="p">,</span> <span class="n">movable</span><span class="o">=</span><span class="n">movable</span><span class="p">,</span> <span class="n">bounds</span><span class="o">=</span><span class="n">bounds</span><span class="p">),</span>
<span class="n">InfiniteLine</span><span class="p">(</span><span class="n">QtCore</span><span class="o">.</span><span class="n">QPointF</span><span class="p">(</span><span class="n">values</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="mi">0</span><span class="p">),</span> <span class="mi">90</span><span class="p">,</span> <span class="n">movable</span><span class="o">=</span><span class="n">movable</span><span class="p">,</span> <span class="n">bounds</span><span class="o">=</span><span class="n">bounds</span><span class="p">)]</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">'Orientation must be one of LinearRegionItem.Vertical or LinearRegionItem.Horizontal'</span><span class="p">)</span>
<span class="k">for</span> <span class="n">l</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">lines</span><span class="p">:</span>
<span class="n">l</span><span class="o">.</span><span class="n">setParentItem</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="n">l</span><span class="o">.</span><span class="n">sigPositionChangeFinished</span><span class="o">.</span><span class="n">connect</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">lineMoveFinished</span><span class="p">)</span>
<span class="n">l</span><span class="o">.</span><span class="n">sigPositionChanged</span><span class="o">.</span><span class="n">connect</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">lineMoved</span><span class="p">)</span>
<span class="k">if</span> <span class="n">brush</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">brush</span> <span class="o">=</span> <span class="n">QtGui</span><span class="o">.</span><span class="n">QBrush</span><span class="p">(</span><span class="n">QtGui</span><span class="o">.</span><span class="n">QColor</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">255</span><span class="p">,</span> <span class="mi">50</span><span class="p">))</span>
<span class="bp">self</span><span class="o">.</span><span class="n">setBrush</span><span class="p">(</span><span class="n">brush</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">setMovable</span><span class="p">(</span><span class="n">movable</span><span class="p">)</span></div>
<div class="viewcode-block" id="LinearRegionItem.getRegion"><a class="viewcode-back" href="../../../graphicsItems/linearregionitem.html#pyqtgraph.LinearRegionItem.getRegion">[docs]</a> <span class="k">def</span> <span class="nf">getRegion</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Return the values at the edges of the region."""</span>
<span class="c">#if self.orientation[0] == 'h':</span>
<span class="c">#r = (self.bounds.top(), self.bounds.bottom())</span>
<span class="c">#else:</span>
<span class="c">#r = (self.bounds.left(), self.bounds.right())</span>
<span class="n">r</span> <span class="o">=</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">lines</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">value</span><span class="p">(),</span> <span class="bp">self</span><span class="o">.</span><span class="n">lines</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">value</span><span class="p">()]</span>
<span class="k">return</span> <span class="p">(</span><span class="nb">min</span><span class="p">(</span><span class="n">r</span><span class="p">),</span> <span class="nb">max</span><span class="p">(</span><span class="n">r</span><span class="p">))</span></div>
<div class="viewcode-block" id="LinearRegionItem.setRegion"><a class="viewcode-back" href="../../../graphicsItems/linearregionitem.html#pyqtgraph.LinearRegionItem.setRegion">[docs]</a> <span class="k">def</span> <span class="nf">setRegion</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">rgn</span><span class="p">):</span>
<span class="sd">"""Set the values for the edges of the region.</span>
<span class="sd"> </span>
<span class="sd"> ============== ==============================================</span>
<span class="sd"> **Arguments:**</span>
<span class="sd"> rgn A list or tuple of the lower and upper values.</span>
<span class="sd"> ============== ==============================================</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">lines</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">value</span><span class="p">()</span> <span class="o">==</span> <span class="n">rgn</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">lines</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">value</span><span class="p">()</span> <span class="o">==</span> <span class="n">rgn</span><span class="p">[</span><span class="mi">1</span><span class="p">]:</span>
<span class="k">return</span>
<span class="bp">self</span><span class="o">.</span><span class="n">blockLineSignal</span> <span class="o">=</span> <span class="bp">True</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lines</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">setValue</span><span class="p">(</span><span class="n">rgn</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="bp">self</span><span class="o">.</span><span class="n">blockLineSignal</span> <span class="o">=</span> <span class="bp">False</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lines</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">setValue</span><span class="p">(</span><span class="n">rgn</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
<span class="c">#self.blockLineSignal = False</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lineMoved</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lineMoveFinished</span><span class="p">()</span></div>
<div class="viewcode-block" id="LinearRegionItem.setBrush"><a class="viewcode-back" href="../../../graphicsItems/linearregionitem.html#pyqtgraph.LinearRegionItem.setBrush">[docs]</a> <span class="k">def</span> <span class="nf">setBrush</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">br</span><span class="p">,</span> <span class="o">**</span><span class="n">kargs</span><span class="p">):</span>
<span class="sd">"""Set the brush that fills the region. Can have any arguments that are valid</span>
<span class="sd"> for :func:`mkBrush <pyqtgraph.mkBrush>`.</span>
<span class="sd"> """</span>
<span class="bp">self</span><span class="o">.</span><span class="n">brush</span> <span class="o">=</span> <span class="n">fn</span><span class="o">.</span><span class="n">mkBrush</span><span class="p">(</span><span class="o">*</span><span class="n">br</span><span class="p">,</span> <span class="o">**</span><span class="n">kargs</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentBrush</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">brush</span></div>
<div class="viewcode-block" id="LinearRegionItem.setBounds"><a class="viewcode-back" href="../../../graphicsItems/linearregionitem.html#pyqtgraph.LinearRegionItem.setBounds">[docs]</a> <span class="k">def</span> <span class="nf">setBounds</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">bounds</span><span class="p">):</span>
<span class="sd">"""Optional [min, max] bounding values for the region. To have no bounds on the</span>
<span class="sd"> region use [None, None].</span>
<span class="sd"> Does not affect the current position of the region unless it is outside the new bounds. </span>
<span class="sd"> See :func:`setRegion <pyqtgraph.LinearRegionItem.setRegion>` to set the position </span>
<span class="sd"> of the region."""</span>
<span class="k">for</span> <span class="n">l</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">lines</span><span class="p">:</span>
<span class="n">l</span><span class="o">.</span><span class="n">setBounds</span><span class="p">(</span><span class="n">bounds</span><span class="p">)</span></div>
<div class="viewcode-block" id="LinearRegionItem.setMovable"><a class="viewcode-back" href="../../../graphicsItems/linearregionitem.html#pyqtgraph.LinearRegionItem.setMovable">[docs]</a> <span class="k">def</span> <span class="nf">setMovable</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">m</span><span class="p">):</span>
<span class="sd">"""Set lines to be movable by the user, or not. If lines are movable, they will </span>
<span class="sd"> also accept HoverEvents."""</span>
<span class="k">for</span> <span class="n">l</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">lines</span><span class="p">:</span>
<span class="n">l</span><span class="o">.</span><span class="n">setMovable</span><span class="p">(</span><span class="n">m</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">movable</span> <span class="o">=</span> <span class="n">m</span>
<span class="bp">self</span><span class="o">.</span><span class="n">setAcceptHoverEvents</span><span class="p">(</span><span class="n">m</span><span class="p">)</span></div>
<span class="k">def</span> <span class="nf">boundingRect</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">br</span> <span class="o">=</span> <span class="n">UIGraphicsItem</span><span class="o">.</span><span class="n">boundingRect</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="n">rng</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">getRegion</span><span class="p">()</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">orientation</span> <span class="o">==</span> <span class="n">LinearRegionItem</span><span class="o">.</span><span class="n">Vertical</span><span class="p">:</span>
<span class="n">br</span><span class="o">.</span><span class="n">setLeft</span><span class="p">(</span><span class="n">rng</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="n">br</span><span class="o">.</span><span class="n">setRight</span><span class="p">(</span><span class="n">rng</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">br</span><span class="o">.</span><span class="n">setTop</span><span class="p">(</span><span class="n">rng</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="n">br</span><span class="o">.</span><span class="n">setBottom</span><span class="p">(</span><span class="n">rng</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
<span class="k">return</span> <span class="n">br</span><span class="o">.</span><span class="n">normalized</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">paint</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">):</span>
<span class="n">profiler</span> <span class="o">=</span> <span class="n">debug</span><span class="o">.</span><span class="n">Profiler</span><span class="p">()</span>
<span class="n">UIGraphicsItem</span><span class="o">.</span><span class="n">paint</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">)</span>
<span class="n">p</span><span class="o">.</span><span class="n">setBrush</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">currentBrush</span><span class="p">)</span>
<span class="n">p</span><span class="o">.</span><span class="n">setPen</span><span class="p">(</span><span class="n">fn</span><span class="o">.</span><span class="n">mkPen</span><span class="p">(</span><span class="bp">None</span><span class="p">))</span>
<span class="n">p</span><span class="o">.</span><span class="n">drawRect</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">boundingRect</span><span class="p">())</span>
<span class="k">def</span> <span class="nf">dataBounds</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">axis</span><span class="p">,</span> <span class="n">frac</span><span class="o">=</span><span class="mf">1.0</span><span class="p">,</span> <span class="n">orthoRange</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="k">if</span> <span class="n">axis</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">orientation</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">getRegion</span><span class="p">()</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">None</span>
<span class="k">def</span> <span class="nf">lineMoved</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">blockLineSignal</span><span class="p">:</span>
<span class="k">return</span>
<span class="bp">self</span><span class="o">.</span><span class="n">prepareGeometryChange</span><span class="p">()</span>
<span class="c">#self.emit(QtCore.SIGNAL('regionChanged'), self)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sigRegionChanged</span><span class="o">.</span><span class="n">emit</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">lineMoveFinished</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="c">#self.emit(QtCore.SIGNAL('regionChangeFinished'), self)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sigRegionChangeFinished</span><span class="o">.</span><span class="n">emit</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="c">#def updateBounds(self):</span>
<span class="c">#vb = self.view().viewRect()</span>
<span class="c">#vals = [self.lines[0].value(), self.lines[1].value()]</span>
<span class="c">#if self.orientation[0] == 'h':</span>
<span class="c">#vb.setTop(min(vals))</span>
<span class="c">#vb.setBottom(max(vals))</span>
<span class="c">#else:</span>
<span class="c">#vb.setLeft(min(vals))</span>
<span class="c">#vb.setRight(max(vals))</span>
<span class="c">#if vb != self.bounds:</span>
<span class="c">#self.bounds = vb</span>
<span class="c">#self.rect.setRect(vb)</span>
<span class="c">#def mousePressEvent(self, ev):</span>
<span class="c">#if not self.movable:</span>
<span class="c">#ev.ignore()</span>
<span class="c">#return</span>
<span class="c">#for l in self.lines:</span>
<span class="c">#l.mousePressEvent(ev) ## pass event to both lines so they move together</span>
<span class="c">##if self.movable and ev.button() == QtCore.Qt.LeftButton:</span>
<span class="c">##ev.accept()</span>
<span class="c">##self.pressDelta = self.mapToParent(ev.pos()) - QtCore.QPointF(*self.p)</span>
<span class="c">##else:</span>
<span class="c">##ev.ignore()</span>
<span class="c">#def mouseReleaseEvent(self, ev):</span>
<span class="c">#for l in self.lines:</span>
<span class="c">#l.mouseReleaseEvent(ev)</span>
<span class="c">#def mouseMoveEvent(self, ev):</span>
<span class="c">##print "move", ev.pos()</span>
<span class="c">#if not self.movable:</span>
<span class="c">#return</span>
<span class="c">#self.lines[0].blockSignals(True) # only want to update once</span>
<span class="c">#for l in self.lines:</span>
<span class="c">#l.mouseMoveEvent(ev)</span>
<span class="c">#self.lines[0].blockSignals(False)</span>
<span class="c">##self.setPos(self.mapToParent(ev.pos()) - self.pressDelta)</span>
<span class="c">##self.emit(QtCore.SIGNAL('dragged'), self)</span>
<span class="k">def</span> <span class="nf">mouseDragEvent</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">ev</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">movable</span> <span class="ow">or</span> <span class="nb">int</span><span class="p">(</span><span class="n">ev</span><span class="o">.</span><span class="n">button</span><span class="p">()</span> <span class="o">&</span> <span class="n">QtCore</span><span class="o">.</span><span class="n">Qt</span><span class="o">.</span><span class="n">LeftButton</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">return</span>
<span class="n">ev</span><span class="o">.</span><span class="n">accept</span><span class="p">()</span>
<span class="k">if</span> <span class="n">ev</span><span class="o">.</span><span class="n">isStart</span><span class="p">():</span>
<span class="n">bdp</span> <span class="o">=</span> <span class="n">ev</span><span class="o">.</span><span class="n">buttonDownPos</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">cursorOffsets</span> <span class="o">=</span> <span class="p">[</span><span class="n">l</span><span class="o">.</span><span class="n">pos</span><span class="p">()</span> <span class="o">-</span> <span class="n">bdp</span> <span class="k">for</span> <span class="n">l</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">lines</span><span class="p">]</span>
<span class="bp">self</span><span class="o">.</span><span class="n">startPositions</span> <span class="o">=</span> <span class="p">[</span><span class="n">l</span><span class="o">.</span><span class="n">pos</span><span class="p">()</span> <span class="k">for</span> <span class="n">l</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">lines</span><span class="p">]</span>
<span class="bp">self</span><span class="o">.</span><span class="n">moving</span> <span class="o">=</span> <span class="bp">True</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">moving</span><span class="p">:</span>
<span class="k">return</span>
<span class="c">#delta = ev.pos() - ev.lastPos()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lines</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">blockSignals</span><span class="p">(</span><span class="bp">True</span><span class="p">)</span> <span class="c"># only want to update once</span>
<span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="n">l</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">lines</span><span class="p">):</span>
<span class="n">l</span><span class="o">.</span><span class="n">setPos</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">cursorOffsets</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">+</span> <span class="n">ev</span><span class="o">.</span><span class="n">pos</span><span class="p">())</span>
<span class="c">#l.setPos(l.pos()+delta)</span>
<span class="c">#l.mouseDragEvent(ev)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lines</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">blockSignals</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">prepareGeometryChange</span><span class="p">()</span>
<span class="k">if</span> <span class="n">ev</span><span class="o">.</span><span class="n">isFinish</span><span class="p">():</span>
<span class="bp">self</span><span class="o">.</span><span class="n">moving</span> <span class="o">=</span> <span class="bp">False</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sigRegionChangeFinished</span><span class="o">.</span><span class="n">emit</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sigRegionChanged</span><span class="o">.</span><span class="n">emit</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">mouseClickEvent</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">ev</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">moving</span> <span class="ow">and</span> <span class="n">ev</span><span class="o">.</span><span class="n">button</span><span class="p">()</span> <span class="o">==</span> <span class="n">QtCore</span><span class="o">.</span><span class="n">Qt</span><span class="o">.</span><span class="n">RightButton</span><span class="p">:</span>
<span class="n">ev</span><span class="o">.</span><span class="n">accept</span><span class="p">()</span>
<span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="n">l</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">lines</span><span class="p">):</span>
<span class="n">l</span><span class="o">.</span><span class="n">setPos</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">startPositions</span><span class="p">[</span><span class="n">i</span><span class="p">])</span>
<span class="bp">self</span><span class="o">.</span><span class="n">moving</span> <span class="o">=</span> <span class="bp">False</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sigRegionChanged</span><span class="o">.</span><span class="n">emit</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sigRegionChangeFinished</span><span class="o">.</span><span class="n">emit</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">hoverEvent</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">ev</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">movable</span> <span class="ow">and</span> <span class="p">(</span><span class="ow">not</span> <span class="n">ev</span><span class="o">.</span><span class="n">isExit</span><span class="p">())</span> <span class="ow">and</span> <span class="n">ev</span><span class="o">.</span><span class="n">acceptDrags</span><span class="p">(</span><span class="n">QtCore</span><span class="o">.</span><span class="n">Qt</span><span class="o">.</span><span class="n">LeftButton</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">setMouseHover</span><span class="p">(</span><span class="bp">True</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">setMouseHover</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">setMouseHover</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">hover</span><span class="p">):</span>
<span class="c">## Inform the item that the mouse is(not) hovering over it</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">mouseHovering</span> <span class="o">==</span> <span class="n">hover</span><span class="p">:</span>
<span class="k">return</span>
<span class="bp">self</span><span class="o">.</span><span class="n">mouseHovering</span> <span class="o">=</span> <span class="n">hover</span>
<span class="k">if</span> <span class="n">hover</span><span class="p">:</span>
<span class="n">c</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">brush</span><span class="o">.</span><span class="n">color</span><span class="p">()</span>
<span class="n">c</span><span class="o">.</span><span class="n">setAlpha</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">alpha</span><span class="p">()</span> <span class="o">*</span> <span class="mi">2</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentBrush</span> <span class="o">=</span> <span class="n">fn</span><span class="o">.</span><span class="n">mkBrush</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentBrush</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">brush</span>
<span class="bp">self</span><span class="o">.</span><span class="n">update</span><span class="p">()</span></div>
<span class="c">#def hoverEnterEvent(self, ev):</span>
<span class="c">#print "rgn hover enter"</span>
<span class="c">#ev.ignore()</span>
<span class="c">#self.updateHoverBrush()</span>
<span class="c">#def hoverMoveEvent(self, ev):</span>
<span class="c">#print "rgn hover move"</span>
<span class="c">#ev.ignore()</span>
<span class="c">#self.updateHoverBrush()</span>
<span class="c">#def hoverLeaveEvent(self, ev):</span>
<span class="c">#print "rgn hover leave"</span>
<span class="c">#ev.ignore()</span>
<span class="c">#self.updateHoverBrush(False)</span>
<span class="c">#def updateHoverBrush(self, hover=None):</span>
<span class="c">#if hover is None:</span>
<span class="c">#scene = self.scene()</span>
<span class="c">#hover = scene.claimEvent(self, QtCore.Qt.LeftButton, scene.Drag)</span>
<span class="c">#if hover:</span>
<span class="c">#self.currentBrush = fn.mkBrush(255, 0,0,100)</span>
<span class="c">#else:</span>
<span class="c">#self.currentBrush = self.brush</span>
<span class="c">#self.update()</span>
</pre></div>
</div>
</div>
</div>
<div class="sphinxsidebar" role="navigation" aria-label="main navigation">
<div class="sphinxsidebarwrapper">
<div id="searchbox" style="display: none" role="search">
<h3>Quick search</h3>
<form class="search" action="../../../search.html" method="get">
<input type="text" name="q" />
<input type="submit" value="Go" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
<p class="searchtip" style="font-size: 90%">
Enter search terms or a module, class or function name.
</p>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="related" role="navigation" aria-label="related navigation">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../../../genindex.html" title="General Index"
>index</a></li>
<li class="right" >
<a href="../../../py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="nav-item nav-item-0"><a href="../../../index.html">pyqtgraph 0.9.10 documentation</a> »</li>
<li class="nav-item nav-item-1"><a href="../../index.html" >Module code</a> »</li>
<li class="nav-item nav-item-2"><a href="../../pyqtgraph.html" >pyqtgraph</a> »</li>
</ul>
</div>
<div class="footer" role="contentinfo">
© Copyright 2011, Luke Campagnola.
Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.3.3.
</div>
</body>
</html>
|