maxGraph/docs/php-api/files/reader/mxGraphViewImageReader-php....

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<div id=Content><div class="CClass"><div class=CTopic id=MainTopic><h1 class=CTitle><a name="mxGraphViewImageReader"></a>mxGraphViewImageReader</h1><div class=CBody><p>A display XML to image converter.&nbsp; This allows to create an image of a graph without having to parse and create the graph model using the XML file created for the mxGraphView object in the thin client.</p><h4 class=CHeading>To create the XML for the mxGraphView on the client</h4><blockquote><pre class="prettyprint">var enc = new mxCodec(mxUtils.createXMLDocument());
var node = enc.encode(editor.graph.view);
var xml = mxUtils.getXML(node);</pre></blockquote><!--START_ND_SUMMARY--><div class=Summary><div class=STitle>Summary</div><div class=SBorder><table border=0 cellspacing=0 cellpadding=0 class=STable><tr class="SMain"><td class=SEntry><a href="#mxGraphViewImageReader" >mxGraphViewImageReader</a></td><td class=SDescription>A display XML to image converter. </td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#mxGraphViewImageReader.Variables" >Variables</a></td><td class=SDescription></td></tr><tr class="SVariable SIndent2 SMarked"><td class=SEntry><a href="#mxGraphViewImageReader.canvas" id=link1 onMouseOver="ShowTip(event, 'tt1', 'link1')" onMouseOut="HideTip('tt1')">canvas</a></td><td class=SDescription>Holds the canvas.</td></tr><tr class="SVariable SIndent2"><td class=SEntry><a href="#mxGraphViewImageReader.scale" id=link2 onMouseOver="ShowTip(event, 'tt2', 'link2')" onMouseOut="HideTip('tt2')">scale</a></td><td class=SDescription>Holds the global scale of the graph. </td></tr><tr class="SVariable SIndent2 SMarked"><td class=SEntry><a href="#mxGraphViewImageReader.parser" id=link3 onMouseOver="ShowTip(event, 'tt3', 'link3')" onMouseOut="HideTip('tt3')">parser</a></td><td class=SDescription>Holds the SAX parser.</td></tr><tr class="SVariable SIndent2"><td class=SEntry><a href="#mxGraphViewImageReader.background" id=link4 onMouseOver="ShowTip(event, 'tt4', 'link4')" onMouseOut="HideTip('tt4')">background</a></td><td class=SDescription>Holds the background color.</td></tr><tr class="SVariable SIndent2 SMarked"><td class=SEntry><a href="#mxGraphViewImageReader.border" id=link5 onMouseOver="ShowTip(event, 'tt5', 'link5')" onMouseOut="HideTip('tt5')">border</a></td><td class=SDescription>Holds the border size. </td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#mxGraphViewImageReader.Functions" >Functions</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxGraphViewImageReader.mxGraphViewImageReader" id=link6 onMouseOver="ShowTip(event, 'tt6', 'link6')" onMouseOut="HideTip('tt6')">mxGraphViewImageReader</a></td><td class=SDescription>Constructs a new image graph view reader.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#mxGraphViewImageReader.createCanvas" id=link7 onMouseOver="ShowTip(event, 'tt7', 'link7')" onMouseOut="HideTip('tt7')">createCanvas</a></td><td class=SDescription>Returns the canvas to be used for rendering.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxGraphViewImageReader.read" id=link8 onMouseOver="ShowTip(event, 'tt8', 'link8')" onMouseOut="HideTip('tt8')">read</a></td><td class=SDescription>Reads the specified view XML string.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#mxGraphViewImageReader.readFile" id=link9 onMouseOver="ShowTip(event, 'tt9', 'link9')" onMouseOut="HideTip('tt9')">readFile</a></td><td class=SDescription>Reads the specified view XML file in blocks of 4096 bytes.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxGraphViewImageReader.startElement" id=link10 onMouseOver="ShowTip(event, 'tt10', 'link10')" onMouseOut="HideTip('tt10')">startElement</a></td><td class=SDescription>Invoked by the SAX parser when an element starts.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#mxGraphViewImageReader.parseState" id=link11 onMouseOver="ShowTip(event, 'tt11', 'link11')" onMouseOut="HideTip('tt11')">parseState</a></td><td class=SDescription>Parses the bounds, absolute points and label information from the style of the state into its respective fields and returns the label of the cell.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxGraphViewImageReader.parsePoints" id=link12 onMouseOver="ShowTip(event, 'tt12', 'link12')" onMouseOut="HideTip('tt12')">parsePoints</a></td><td class=SDescription>Parses a string that represents a list of points into an array of <a href="../util/mxPoint-php.html#mxPoint" class=LClass id=link13 onMouseOver="ShowTip(event, 'tt13', 'link13')" onMouseOut="HideTip('tt13')">mxPoints</a>.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#mxGraphViewImageReader.endElement" id=link14 onMouseOver="ShowTip(event, 'tt14', 'link14')" onMouseOut="HideTip('tt14')">endElement</a></td><td class=SDescription>Invoked by the SAX parser when an element ends.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxGraphViewImageReader.destroy" id=link15 onMouseOver="ShowTip(event, 'tt15', 'link15')" onMouseOut="HideTip('tt15')">destroy</a></td><td class=SDescription>Destroy all allocated resources for this reader.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#mxGraphViewImageReader.convert" id=link16 onMouseOver="ShowTip(event, 'tt16', 'link16')" onMouseOut="HideTip('tt16')">convert</a></td><td class=SDescription>Creates the image for the given display XML string.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxGraphViewImageReader.convertFile" id=link17 onMouseOver="ShowTip(event, 'tt17', 'link17')" onMouseOut="HideTip('tt17')">convertFile</a></td><td class=SDescription>Creates the image for the given display XML file.</td></tr></table></div></div><!--END_ND_SUMMARY--></div></div></div>

<div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.Variables"></a>Variables</h3></div></div>

<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.canvas"></a>canvas</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td>var $canvas</td></tr></table></blockquote><p>Holds the canvas.</p></div></div></div>

<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.scale"></a>scale</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td>var $scale</td></tr></table></blockquote><p>Holds the global scale of the graph.&nbsp; This is set just before createCanvas is called.</p></div></div></div>

<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.parser"></a>parser</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td>var $parser</td></tr></table></blockquote><p>Holds the SAX parser.</p></div></div></div>

<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.background"></a>background</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td>var $background</td></tr></table></blockquote><p>Holds the background color.</p></div></div></div>

<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.border"></a>border</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td>var $border</td></tr></table></blockquote><p>Holds the border size.&nbsp; Default is 0.</p></div></div></div>

<div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.Functions"></a>Functions</h3></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.mxGraphViewImageReader"></a>mxGraphViewImageReader</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function mxGraphViewImageReader(</td><td class=PParameter nowrap>$background</td><td class=PDefaultValuePrefix>&nbsp;=&nbsp;</td><td class=PDefaultValue width=100%> null,</td></tr><tr><td></td><td class=PParameter nowrap>$border</td><td class=PDefaultValuePrefix>&nbsp;=&nbsp;</td><td class=PDefaultValue width=100%> 0</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Constructs a new image graph view reader.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.createCanvas"></a>createCanvas</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function createCanvas(</td><td class=PParameter nowrap>$attrs</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Returns the canvas to be used for rendering.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.read"></a>read</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function read(</td><td class=PParameter nowrap>$string</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Reads the specified view XML string.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.readFile"></a>readFile</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function readFile(</td><td class=PParameter nowrap>$filename</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Reads the specified view XML file in blocks of 4096 bytes.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.startElement"></a>startElement</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function startElement(</td><td class=PParameter nowrap>$parser,</td></tr><tr><td></td><td class=PParameter nowrap>$name,</td></tr><tr><td></td><td class=PParameter nowrap>$attrs</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Invoked by the SAX parser when an element starts.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.parseState"></a>parseState</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function parseState(</td><td class=PParameter nowrap>$state,</td></tr><tr><td></td><td class=PParameter nowrap>$edge</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Parses the bounds, absolute points and label information from the style of the state into its respective fields and returns the label of the cell.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.parsePoints"></a>parsePoints</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function parsePoints(</td><td class=PParameter nowrap>$str</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Parses a string that represents a list of points into an array of <a href="../util/mxPoint-php.html#mxPoint" class=LClass id=link18 onMouseOver="ShowTip(event, 'tt13', 'link18')" onMouseOut="HideTip('tt13')">mxPoints</a>.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.endElement"></a>endElement</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function endElement(</td><td class=PParameter nowrap>$parser,</td></tr><tr><td></td><td class=PParameter nowrap>$name</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Invoked by the SAX parser when an element ends.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.destroy"></a>destroy</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td>function destroy()</td></tr></table></blockquote><p>Destroy all allocated resources for this reader.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.convert"></a>convert</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>static function convert(</td><td class=PParameter nowrap>$string,</td><td class=PDefaultValuePrefix>&nbsp;&nbsp;</td><td class=PDefaultValue width=100%></td></tr><tr><td></td><td class=PParameter nowrap>$background</td><td class=PDefaultValuePrefix>&nbsp;=&nbsp;</td><td class=PDefaultValue width=100%> null</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Creates the image for the given display XML string.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxGraphViewImageReader.convertFile"></a>convertFile</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>static function convertFile(</td><td class=PParameter nowrap>$filename,</td><td class=PDefaultValuePrefix>&nbsp;&nbsp;</td><td class=PDefaultValue width=100%></td></tr><tr><td></td><td class=PParameter nowrap>$background</td><td class=PDefaultValuePrefix>&nbsp;=&nbsp;</td><td class=PDefaultValue width=100%> null</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Creates the image for the given display XML file.</p></div></div></div>

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<div class=CToolTip id="tt1"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td>var $canvas</td></tr></table></blockquote>Holds the canvas.</div></div><div class=CToolTip id="tt2"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td>var $scale</td></tr></table></blockquote>Holds the global scale of the graph. </div></div><div class=CToolTip id="tt3"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td>var $parser</td></tr></table></blockquote>Holds the SAX parser.</div></div><div class=CToolTip id="tt4"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td>var $background</td></tr></table></blockquote>Holds the background color.</div></div><div class=CToolTip id="tt5"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td>var $border</td></tr></table></blockquote>Holds the border size. </div></div><div class=CToolTip id="tt6"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function mxGraphViewImageReader(</td><td class=PParameter nowrap>$background</td><td class=PDefaultValuePrefix>&nbsp;=&nbsp;</td><td class=PDefaultValue width=100%> null,</td></tr><tr><td></td><td class=PParameter nowrap>$border</td><td class=PDefaultValuePrefix>&nbsp;=&nbsp;</td><td class=PDefaultValue width=100%> 0</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Constructs a new image graph view reader.</div></div><div class=CToolTip id="tt7"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function createCanvas(</td><td class=PParameter nowrap>$attrs</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Returns the canvas to be used for rendering.</div></div><div class=CToolTip id="tt8"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function read(</td><td class=PParameter nowrap>$string</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Reads the specified view XML string.</div></div><div class=CToolTip id="tt9"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function readFile(</td><td class=PParameter nowrap>$filename</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Reads the specified view XML file in blocks of 4096 bytes.</div></div><div class=CToolTip id="tt10"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function startElement(</td><td class=PParameter nowrap>$parser,</td></tr><tr><td></td><td class=PParameter nowrap>$name,</td></tr><tr><td></td><td class=PParameter nowrap>$attrs</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Invoked by the SAX parser when an element starts.</div></div><div class=CToolTip id="tt11"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function parseState(</td><td class=PParameter nowrap>$state,</td></tr><tr><td></td><td class=PParameter nowrap>$edge</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Parses the bounds, absolute points and label information from the style of the state into its respective fields and returns the label of the cell.</div></div><div class=CToolTip id="tt12"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function parsePoints(</td><td class=PParameter nowrap>$str</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Parses a string that represents a list of points into an array of mxPoints.</div></div><div class=CToolTip id="tt13"><div class=CClass>Implements a 2-dimensional point with double precision coordinates.</div></div><div class=CToolTip id="tt14"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>function endElement(</td><td class=PParameter nowrap>$parser,</td></tr><tr><td></td><td class=PParameter nowrap>$name</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Invoked by the SAX parser when an element ends.</div></div><div class=CToolTip id="tt15"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td>function destroy()</td></tr></table></blockquote>Destroy all allocated resources for this reader.</div></div><div class=CToolTip id="tt16"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>static function convert(</td><td class=PParameter nowrap>$string,</td><td class=PDefaultValuePrefix>&nbsp;&nbsp;</td><td class=PDefaultValue width=100%></td></tr><tr><td></td><td class=PParameter nowrap>$background</td><td class=PDefaultValuePrefix>&nbsp;=&nbsp;</td><td class=PDefaultValue width=100%> null</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Creates the image for the given display XML string.</div></div><div class=CToolTip id="tt17"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype prettyprint"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>static function convertFile(</td><td class=PParameter nowrap>$filename,</td><td class=PDefaultValuePrefix>&nbsp;&nbsp;</td><td class=PDefaultValue width=100%></td></tr><tr><td></td><td class=PParameter nowrap>$background</td><td class=PDefaultValuePrefix>&nbsp;=&nbsp;</td><td class=PDefaultValue width=100%> null</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Creates the image for the given display XML file.</div></div><!--END_ND_TOOLTIPS-->


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