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4.2.2 release
2020-10-28 16:11:03 +00:00
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<div id=Content><div class="CClass"><div class=CTopic id=MainTopic><h1 class=CTitle><a name="mxHandle"></a>mxHandle</h1><div class=CBody><p>Implements a single custom handle for vertices.</p><!--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="#mxHandle" >mxHandle</a></td><td class=SDescription>Implements a single custom handle for vertices.</td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#mxHandle.Functions" >Functions</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxHandle.mxHandle" id=link1 onMouseOver="ShowTip(event, 'tt1', 'link1')" onMouseOut="HideTip('tt1')">mxHandle</a></td><td class=SDescription>Constructs a new handle for the given state.</td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#mxHandle.Variables" >Variables</a></td><td class=SDescription></td></tr><tr class="SVariable SIndent2 SMarked"><td class=SEntry><a href="#mxHandle.cursor" id=link2 onMouseOver="ShowTip(event, 'tt2', 'link2')" onMouseOut="HideTip('tt2')">cursor</a></td><td class=SDescription>Specifies the cursor to be used for this handle. </td></tr><tr class="SVariable SIndent2"><td class=SEntry><a href="#mxHandle.image" id=link3 onMouseOver="ShowTip(event, 'tt3', 'link3')" onMouseOut="HideTip('tt3')">image</a></td><td class=SDescription>Specifies the <a href="../util/mxImage-js.html#mxImage" class=LClass id=link4 onMouseOver="ShowTip(event, 'tt4', 'link4')" onMouseOut="HideTip('tt4')">mxImage</a> to be used to render the handle. </td></tr><tr class="SVariable SIndent2 SMarked"><td class=SEntry><a href="#mxHandle.ignoreGrid" id=link5 onMouseOver="ShowTip(event, 'tt5', 'link5')" onMouseOut="HideTip('tt5')">ignoreGrid</a></td><td class=SDescription>Default is false.</td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#mxHandle.Functions" >Functions</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxHandle.getPosition" id=link6 onMouseOver="ShowTip(event, 'tt6', 'link6')" onMouseOut="HideTip('tt6')">getPosition</a></td><td class=SDescription>Hook for subclassers to return the current position of the handle.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#mxHandle.setPosition" id=link7 onMouseOver="ShowTip(event, 'tt7', 'link7')" onMouseOut="HideTip('tt7')">setPosition</a></td><td class=SDescription>Hooks for subclassers to update the style in the &lt;state&gt;.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxHandle.execute" id=link8 onMouseOver="ShowTip(event, 'tt8', 'link8')" onMouseOut="HideTip('tt8')">execute</a></td><td class=SDescription>Hook for subclassers to execute the handle.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#mxHandle.copyStyle" id=link9 onMouseOver="ShowTip(event, 'tt9', 'link9')" onMouseOut="HideTip('tt9')">copyStyle</a></td><td class=SDescription>Sets the cell style with the given name to the corresponding value in &lt;state&gt;.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxHandle.processEvent" id=link10 onMouseOver="ShowTip(event, 'tt10', 'link10')" onMouseOut="HideTip('tt10')">processEvent</a></td><td class=SDescription>Processes the given <a href="../util/mxMouseEvent-js.html#mxMouseEvent" class=LClass id=link11 onMouseOver="ShowTip(event, 'tt11', 'link11')" onMouseOut="HideTip('tt11')">mxMouseEvent</a> and invokes <a href="#mxHandle.setPosition" class=LFunction id=link12 onMouseOver="ShowTip(event, 'tt7', 'link12')" onMouseOut="HideTip('tt7')">setPosition</a>.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#mxHandle.positionChanged" id=link13 onMouseOver="ShowTip(event, 'tt12', 'link13')" onMouseOut="HideTip('tt12')">positionChanged</a></td><td class=SDescription>Should be called after <a href="#mxHandle.setPosition" class=LFunction id=link14 onMouseOver="ShowTip(event, 'tt7', 'link14')" onMouseOut="HideTip(
<div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="mxHandle.Functions"></a>Functions</h3></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.mxHandle"></a>mxHandle</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>function mxHandle(</td><td class="PParameter prettyprint " nowrap>state,</td></tr><tr><td></td><td class="PParameter prettyprint " nowrap>cursor,</td></tr><tr><td></td><td class="PParameter prettyprint " nowrap>image,</td></tr><tr><td></td><td class="PParameter prettyprint " nowrap>shape</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Constructs a new handle for the given state.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>state</td><td class=CDLDescription><a href="../view/mxCellState-js.html#mxCellState" class=LClass id=link29 onMouseOver="ShowTip(event, 'tt26', 'link29')" onMouseOut="HideTip('tt26')">mxCellState</a> of the cell to be handled.</td></tr></table></div></div></div>
<div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="mxHandle.Variables"></a>Variables</h3></div></div>
<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxHandle.cursor"></a>cursor</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxHandle.prototype.cursor</td></tr></table></blockquote><p>Specifies the cursor to be used for this handle.&nbsp; Default is &lsquo;default&rsquo;.</p></div></div></div>
<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxHandle.image"></a>image</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxHandle.prototype.image</td></tr></table></blockquote><p>Specifies the <a href="../util/mxImage-js.html#mxImage" class=LClass id=link30 onMouseOver="ShowTip(event, 'tt4', 'link30')" onMouseOut="HideTip('tt4')">mxImage</a> to be used to render the handle.&nbsp; Default is null.</p></div></div></div>
<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxHandle.ignoreGrid"></a>ignoreGrid</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxHandle.prototype.ignoreGrid</td></tr></table></blockquote><p>Default is false.</p></div></div></div>
<div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="mxHandle.Functions"></a>Functions</h3></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.getPosition"></a>getPosition</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.getPosition = function(</td><td class="PParameter prettyprint " nowrap>bounds</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Hook for subclassers to return the current position of the handle.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.setPosition"></a>setPosition</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.setPosition = function(</td><td class="PParameter prettyprint " nowrap>bounds,</td></tr><tr><td></td><td class="PParameter prettyprint " nowrap>pt,</td></tr><tr><td></td><td class="PParameter prettyprint " nowrap>me</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Hooks for subclassers to update the style in the &lt;state&gt;.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.execute"></a>execute</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.execute = function(</td><td class="PParameter prettyprint " nowrap>me</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Hook for subclassers to execute the handle.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.copyStyle"></a>copyStyle</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.copyStyle = function(</td><td class="PParameter prettyprint " nowrap>key</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Sets the cell style with the given name to the corresponding value in &lt;state&gt;.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.processEvent"></a>processEvent</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.processEvent = function(</td><td class="PParameter prettyprint " nowrap>me</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Processes the given <a href="../util/mxMouseEvent-js.html#mxMouseEvent" class=LClass id=link31 onMouseOver="ShowTip(event, 'tt11', 'link31')" onMouseOut="HideTip('tt11')">mxMouseEvent</a> and invokes <a href="#mxHandle.setPosition" class=LFunction id=link32 onMouseOver="ShowTip(event, 'tt7', 'link32')" onMouseOut="HideTip('tt7')">setPosition</a>.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.positionChanged"></a>positionChanged</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxHandle.prototype.positionChanged = function()</td></tr></table></blockquote><p>Should be called after <a href="#mxHandle.setPosition" class=LFunction id=link33 onMouseOver="ShowTip(event, 'tt7', 'link33')" onMouseOut="HideTip('tt7')">setPosition</a> in <a href="#mxHandle.processEvent" class=LFunction id=link34 onMouseOver="ShowTip(event, 'tt10', 'link34')" onMouseOut="HideTip('tt10')">processEvent</a>.&nbsp; This repaints the state using <a href="../view/mxCellRenderer-js.html#mxCellRenderer" class=LClass id=link35 onMouseOver="ShowTip(event, 'tt27', 'link35')" onMouseOut="HideTip('tt27')">mxCellRenderer</a>.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.getRotation"></a>getRotation</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxHandle.prototype.getRotation = function()</td></tr></table></blockquote><p>Returns the rotation defined in the style of the cell.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.getTotalRotation"></a>getTotalRotation</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxHandle.prototype.getTotalRotation = function()</td></tr></table></blockquote><p>Returns the rotation from the style and the rotation from the direction of the cell.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.init"></a>init</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxHandle.prototype.init = function()</td></tr></table></blockquote><p>Creates and initializes the shapes required for this handle.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.createShape"></a>createShape</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.createShape = function(</td><td class="PParameter prettyprint " nowrap>html</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Creates and returns the shape for this handle.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.initShape"></a>initShape</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.initShape = function(</td><td class="PParameter prettyprint " nowrap>html</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Initializes &lt;shape&gt; and sets its cursor.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.redraw"></a>redraw</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxHandle.prototype.redraw = function()</td></tr></table></blockquote><p>Renders the shape for this handle.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.isHtmlRequired"></a>isHtmlRequired</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxHandle.prototype.isHtmlRequired = function()</td></tr></table></blockquote><p>Returns true if this handle should be rendered in HTML.&nbsp; This returns true if the text node is in the graph container.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.rotatePoint"></a>rotatePoint</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.rotatePoint = function(</td><td class="PParameter prettyprint " nowrap>pt,</td></tr><tr><td></td><td class="PParameter prettyprint " nowrap>alpha</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Rotates the point by the given angle.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.flipPoint"></a>flipPoint</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.flipPoint = function(</td><td class="PParameter prettyprint " nowrap>pt</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Flips the given point vertically and/or horizontally.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.snapPoint"></a>snapPoint</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.snapPoint = function(</td><td class="PParameter prettyprint " nowrap>pt,</td></tr><tr><td></td><td class="PParameter prettyprint " nowrap>ignore</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Snaps the given point to the grid if ignore is false.&nbsp; This modifies the given point in-place and also returns it.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.setVisible"></a>setVisible</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.setVisible = function(</td><td class="PParameter prettyprint " nowrap>visible</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Shows or hides this handle.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.reset"></a>reset</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxHandle.prototype.reset = function()</td></tr></table></blockquote><p>Resets the state of this handle by setting its visibility to true.</p></div></div></div>
<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxHandle.destroy"></a>destroy</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxHandle.prototype.destroy = function()</td></tr></table></blockquote><p>Destroys this handle.</p></div></div></div>
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<div class=CToolTip id="tt1"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>function mxHandle(</td><td class="PParameter prettyprint " nowrap>state,</td></tr><tr><td></td><td class="PParameter prettyprint " nowrap>cursor,</td></tr><tr><td></td><td class="PParameter prettyprint " nowrap>image,</td></tr><tr><td></td><td class="PParameter prettyprint " nowrap>shape</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Constructs a new handle for the given state.</div></div><div class=CToolTip id="tt2"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxHandle.prototype.cursor</td></tr></table></blockquote>Specifies the cursor to be used for this handle. </div></div><div class=CToolTip id="tt3"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxHandle.prototype.image</td></tr></table></blockquote>Specifies the mxImage to be used to render the handle. </div></div><div class=CToolTip id="tt4"><div class=CClass>Encapsulates the URL, width and height of an image.</div></div><div class=CToolTip id="tt5"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxHandle.prototype.ignoreGrid</td></tr></table></blockquote>Default is false.</div></div><div class=CToolTip id="tt6"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.getPosition = function(</td><td class="PParameter prettyprint " nowrap>bounds</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Hook for subclassers to return the current position of the handle.</div></div><div class=CToolTip id="tt7"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.setPosition = function(</td><td class="PParameter prettyprint " nowrap>bounds,</td></tr><tr><td></td><td class="PParameter prettyprint " nowrap>pt,</td></tr><tr><td></td><td class="PParameter prettyprint " nowrap>me</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Hooks for subclassers to update the style in the state.</div></div><div class=CToolTip id="tt8"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.execute = function(</td><td class="PParameter prettyprint " nowrap>me</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Hook for subclassers to execute the handle.</div></div><div class=CToolTip id="tt9"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.copyStyle = function(</td><td class="PParameter prettyprint " nowrap>key</td><td class="PAfterParameters prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Sets the cell style with the given name to the corresponding value in state.</div></div><div class=CToolTip id="tt10"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters prettyprint "nowrap>mxHandle.prototype.processEvent = function(</td><td class="PParameter prettyprint " nowrap>me</td><td class="PAfterParameters prettyprint "nowrap>)
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