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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<title>mxBasicCanvas (mxGraph 3.5.1.2 API Specification)</title>
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<div class="subTitle">com.mxgraph.canvas</div>
<h2 title="Class mxBasicCanvas" class="title">Class mxBasicCanvas</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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<ul class="inheritance">
<li>com.mxgraph.canvas.mxBasicCanvas</li>
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<div class="description">
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<dl>
<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../com/mxgraph/canvas/mxICanvas.html" title="interface in com.mxgraph.canvas">mxICanvas</a></dd>
</dl>
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../com/mxgraph/canvas/mxGraphics2DCanvas.html" title="class in com.mxgraph.canvas">mxGraphics2DCanvas</a>, <a href="../../../com/mxgraph/canvas/mxHtmlCanvas.html" title="class in com.mxgraph.canvas">mxHtmlCanvas</a>, <a href="../../../com/mxgraph/canvas/mxSvgCanvas.html" title="class in com.mxgraph.canvas">mxSvgCanvas</a>, <a href="../../../com/mxgraph/canvas/mxVmlCanvas.html" title="class in com.mxgraph.canvas">mxVmlCanvas</a></dd>
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<pre>public abstract class <span class="strong">mxBasicCanvas</span>
extends <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="../../../com/mxgraph/canvas/mxICanvas.html" title="interface in com.mxgraph.canvas">mxICanvas</a></pre>
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<h3>Field Summary</h3>
<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation">
<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#DEFAULT_IMAGEBASEPATH">DEFAULT_IMAGEBASEPATH</a></strong></code>
<div class="block">Defines the default value for the imageBasePath in all GDI canvases.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#drawLabels">drawLabels</a></strong></code>
<div class="block">Specifies whether labels should be painted.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#imageBasePath">imageBasePath</a></strong></code>
<div class="block">Defines the base path for images with relative paths.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/util/Hashtable.html?is-external=true" title="class or interface in java.util">Hashtable</a>&lt;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/image/BufferedImage.html?is-external=true" title="class or interface in java.awt.image">BufferedImage</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#imageCache">imageCache</a></strong></code>
<div class="block">Cache for images.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#PRESERVE_IMAGE_ASPECT">PRESERVE_IMAGE_ASPECT</a></strong></code>
<div class="block">Specifies if image aspect should be preserved in drawImage.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected double</code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#scale">scale</a></strong></code>
<div class="block">Specifies the current scale.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/Point.html?is-external=true" title="class or interface in java.awt">Point</a></code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#translate">translate</a></strong></code>
<div class="block">Specifies the current translation.</div>
</td>
</tr>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#mxBasicCanvas()">mxBasicCanvas</a></strong>()</code>&nbsp;</td>
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<caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#flushImageCache()">flushImageCache</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#getImageBasePath()">getImageBasePath</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#getImageForStyle(java.util.Map)">getImageForStyle</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;style)</code>
<div class="block">Gets the image path from the given style.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#getScale()">getScale</a></strong>()</code>
<div class="block">Returns the scale.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/Point.html?is-external=true" title="class or interface in java.awt">Point</a></code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#getTranslate()">getTranslate</a></strong>()</code>
<div class="block">Returns the current translate.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#isDrawLabels()">isDrawLabels</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/image/BufferedImage.html?is-external=true" title="class or interface in java.awt.image">BufferedImage</a></code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#loadImage(java.lang.String)">loadImage</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;image)</code>
<div class="block">Returns an image instance for the given URL.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#setDrawLabels(boolean)">setDrawLabels</a></strong>(boolean&nbsp;drawLabels)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#setImageBasePath(java.lang.String)">setImageBasePath</a></strong>(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;imageBasePath)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#setScale(double)">setScale</a></strong>(double&nbsp;scale)</code>
<div class="block">Sets the scale for the following drawing requests.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../com/mxgraph/canvas/mxBasicCanvas.html#setTranslate(int, int)">setTranslate</a></strong>(int&nbsp;dx,
int&nbsp;dy)</code>
<div class="block">Sets the current translate.</div>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</a></code></li>
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<h3>Methods inherited from interface&nbsp;com.mxgraph.canvas.<a href="../../../com/mxgraph/canvas/mxICanvas.html" title="interface in com.mxgraph.canvas">mxICanvas</a></h3>
<code><a href="../../../com/mxgraph/canvas/mxICanvas.html#drawCell(com.mxgraph.view.mxCellState)">drawCell</a>, <a href="../../../com/mxgraph/canvas/mxICanvas.html#drawLabel(java.lang.String, com.mxgraph.view.mxCellState, boolean)">drawLabel</a></code></li>
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<h3>Field Detail</h3>
<a name="PRESERVE_IMAGE_ASPECT">
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<h4>PRESERVE_IMAGE_ASPECT</h4>
<pre>public static&nbsp;boolean PRESERVE_IMAGE_ASPECT</pre>
<div class="block">Specifies if image aspect should be preserved in drawImage. Default is true.</div>
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<a name="DEFAULT_IMAGEBASEPATH">
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<h4>DEFAULT_IMAGEBASEPATH</h4>
<pre>public static&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> DEFAULT_IMAGEBASEPATH</pre>
<div class="block">Defines the default value for the imageBasePath in all GDI canvases.
Default is an empty string.</div>
</li>
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<a name="imageBasePath">
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<h4>imageBasePath</h4>
<pre>protected&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> imageBasePath</pre>
<div class="block">Defines the base path for images with relative paths. Trailing slash
is required. Default value is DEFAULT_IMAGEBASEPATH.</div>
</li>
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<a name="translate">
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<h4>translate</h4>
<pre>protected&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/Point.html?is-external=true" title="class or interface in java.awt">Point</a> translate</pre>
<div class="block">Specifies the current translation. Default is (0,0).</div>
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<a name="scale">
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<h4>scale</h4>
<pre>protected&nbsp;double scale</pre>
<div class="block">Specifies the current scale. Default is 1.</div>
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<a name="drawLabels">
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<h4>drawLabels</h4>
<pre>protected&nbsp;boolean drawLabels</pre>
<div class="block">Specifies whether labels should be painted. Default is true.</div>
</li>
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<a name="imageCache">
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<ul class="blockListLast">
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<h4>imageCache</h4>
<pre>protected&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/util/Hashtable.html?is-external=true" title="class or interface in java.util">Hashtable</a>&lt;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/image/BufferedImage.html?is-external=true" title="class or interface in java.awt.image">BufferedImage</a>&gt; imageCache</pre>
<div class="block">Cache for images.</div>
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<h3>Constructor Detail</h3>
<a name="mxBasicCanvas()">
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<h4>mxBasicCanvas</h4>
<pre>public&nbsp;mxBasicCanvas()</pre>
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<h4>setTranslate</h4>
<pre>public&nbsp;void&nbsp;setTranslate(int&nbsp;dx,
int&nbsp;dy)</pre>
<div class="block">Sets the current translate.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../com/mxgraph/canvas/mxICanvas.html#setTranslate(int, int)">setTranslate</a></code>&nbsp;in interface&nbsp;<code><a href="../../../com/mxgraph/canvas/mxICanvas.html" title="interface in com.mxgraph.canvas">mxICanvas</a></code></dd>
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<a name="getTranslate()">
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<h4>getTranslate</h4>
<pre>public&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/Point.html?is-external=true" title="class or interface in java.awt">Point</a>&nbsp;getTranslate()</pre>
<div class="block">Returns the current translate.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../com/mxgraph/canvas/mxICanvas.html#getTranslate()">getTranslate</a></code>&nbsp;in interface&nbsp;<code><a href="../../../com/mxgraph/canvas/mxICanvas.html" title="interface in com.mxgraph.canvas">mxICanvas</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>Returns the current translation.</dd></dl>
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<h4>setScale</h4>
<pre>public&nbsp;void&nbsp;setScale(double&nbsp;scale)</pre>
<div class="block"><strong>Description copied from interface:&nbsp;<code><a href="../../../com/mxgraph/canvas/mxICanvas.html#setScale(double)">mxICanvas</a></code></strong></div>
<div class="block">Sets the scale for the following drawing requests.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../com/mxgraph/canvas/mxICanvas.html#setScale(double)">setScale</a></code>&nbsp;in interface&nbsp;<code><a href="../../../com/mxgraph/canvas/mxICanvas.html" title="interface in com.mxgraph.canvas">mxICanvas</a></code></dd>
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<a name="getScale()">
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<h4>getScale</h4>
<pre>public&nbsp;double&nbsp;getScale()</pre>
<div class="block"><strong>Description copied from interface:&nbsp;<code><a href="../../../com/mxgraph/canvas/mxICanvas.html#getScale()">mxICanvas</a></code></strong></div>
<div class="block">Returns the scale.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../com/mxgraph/canvas/mxICanvas.html#getScale()">getScale</a></code>&nbsp;in interface&nbsp;<code><a href="../../../com/mxgraph/canvas/mxICanvas.html" title="interface in com.mxgraph.canvas">mxICanvas</a></code></dd>
</dl>
</li>
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<a name="setDrawLabels(boolean)">
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<pre>public&nbsp;void&nbsp;setDrawLabels(boolean&nbsp;drawLabels)</pre>
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<pre>public&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getImageBasePath()</pre>
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<pre>public&nbsp;void&nbsp;setImageBasePath(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;imageBasePath)</pre>
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<pre>public&nbsp;boolean&nbsp;isDrawLabels()</pre>
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<pre>public&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/awt/image/BufferedImage.html?is-external=true" title="class or interface in java.awt.image">BufferedImage</a>&nbsp;loadImage(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;image)</pre>
<div class="block">Returns an image instance for the given URL. If the URL has
been loaded before than an instance of the same instance is
returned as in the previous call.</div>
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<pre>public&nbsp;void&nbsp;flushImageCache()</pre>
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<pre>public&nbsp;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getImageForStyle(<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;style)</pre>
<div class="block">Gets the image path from the given style. If the path is relative (does
not start with a slash) then it is appended to the imageBasePath.</div>
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