javascript/examples/editing.html · opendsl/mxgraph

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mxgraph

javascript

examples

editing.html

editing.html 4.77 KB

<html>
<head>
	<title>Editing example for mxGraph</title>

<script type="text/javascript">
		mxBasePath = '../src';
	</script>

<script type="text/javascript" src="../src/js/mxClient.js"></script>

<script type="text/javascript">

// Program starts here. Creates a sample graph in the
		// DOM node with the specified ID. This function is invoked
		// from the onLoad event handler of the document (see below).
		function main(container)
		{
			// Checks if the browser is supported
			if (!mxClient.isBrowserSupported())
			{
				// Displays an error message if the browser is not supported
				mxUtils.error('Browser is not supported!', 200, false);
			}
			else
			{
				// Creates the graph inside the given container
				var graph = new mxGraph(container);
				graph.setHtmlLabels(true);
				
				// Adds handling of return and escape keystrokes for editing
				var keyHandler = new mxKeyHandler(graph);
				
				// Helper method that returns the fieldname to be used for
				// a mouse event
				var getFieldnameForEvent = function(cell, evt)
				{
					if (evt != null)
					{
						// Finds the relative coordinates inside the cell
						var point = mxUtils.convertPoint(graph.container,
							mxEvent.getClientX(evt), mxEvent.getClientY(evt));
						var state = graph.getView().getState(cell);
						
						if (state != null)
						{
							point.x -= state.x;
							point.y -= state.y;
							
							// Returns second if mouse in second half of cell
							if (point.y > state.height / 2)
							{
								return 'second';
							}
						}
					}
					
					return 'first';
				};
				
				// Returns a HTML representation of the cell where the
				// upper half is the first value, lower half is second
				// value
				graph.getLabel = function(cell)
				{
					var table = document.createElement('table');
					table.style.height = '100%';
					table.style.width = '100%';
					
					var body = document.createElement('tbody');
					var tr1 = document.createElement('tr');
					var td1 = document.createElement('td');
					td1.style.textAlign = 'center';
					td1.style.fontSize = '12px';
					td1.style.color = '#774400';
					mxUtils.write(td1, cell.value.first);
					
					var tr2 = document.createElement('tr');
					var td2 = document.createElement('td');
					td2.style.textAlign = 'center';
					td2.style.fontSize = '12px';
					td2.style.color = '#774400';
					mxUtils.write(td2, cell.value.second);
					
					tr1.appendChild(td1);
					tr2.appendChild(td2);
					body.appendChild(tr1);
					body.appendChild(tr2);
					table.appendChild(body);
					
					return table;
				};
				
				// Returns the editing value for the given cell and event
				graph.getEditingValue = function(cell, evt)
				{
					evt.fieldname = getFieldnameForEvent(cell, evt);

return cell.value[evt.fieldname] || '';
				};
								
				// Sets the new value for the given cell and trigger
				graph.labelChanged = function(cell, newValue, trigger)
				{
					var name = (trigger != null) ? trigger.fieldname : null;
					
					if (name != null)
					{
						// Clones the user object for correct undo and puts
						// the new value in the correct field.
						var value = mxUtils.clone(cell.value);
						value[name] = newValue;
						newValue = value;
						
						mxGraph.prototype.labelChanged.apply(this, arguments);
					}
				};
				
				// Sample user objects with 2 fields
				var value = new Object();
				value.first = 'First value';
				value.second = 'Second value';
				
				// Gets the default parent for inserting new cells. This
				// is normally the first child of the root (ie. layer 0).
				var parent = graph.getDefaultParent();
								
				// Adds cells to the model in a single step
				graph.getModel().beginUpdate();
				try
				{
					var v1 = graph.insertVertex(parent, null, value, 100, 60, 120, 80, 'overflow=fill;');
				}
				finally
				{
					// Updates the display
					graph.getModel().endUpdate();
				}
			}
		};
	</script>
</head>

<body onload="main(document.getElementById('graphContainer'))">
	<p>
	 Double-click the upper/lower half of the cell to edit different fields of the user object.
	</p>
	
	<div id="graphContainer"
		style="overflow:hidden;position:relative;width:321px;height:241px;background:url('editors/images/grid.gif')">
	</div>
</body>
</html>

一键复制编辑原始数据按行查看历史

Gaudenz Alder 提交于 2014年10月03日 20:49 +08:00 . 3.1.0.0 release

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<!--
 Copyright (c) 2006-2013, JGraph Ltd

 Editing example for mxGraph. This example demonstrates using the in-place
 editor trigger to specify the editing value and write the new value into
 a specific field of the user object. Wrapping and DOM nodes as labels are
 also demonstrated here.
-->
<html>
<head>
	<title>Editing example for mxGraph</title>

	<!-- Sets the basepath for the library if not in same directory -->
	<script type="text/javascript">
		mxBasePath = '../src';
	</script>

	<!-- Loads and initializes the library -->
	<script type="text/javascript" src="../src/js/mxClient.js"></script>

	<!-- Example code -->
	<script type="text/javascript">

		// Program starts here. Creates a sample graph in the
		// DOM node with the specified ID. This function is invoked
		// from the onLoad event handler of the document (see below).
		function main(container)
		{
			// Checks if the browser is supported
			if (!mxClient.isBrowserSupported())
			{
				// Displays an error message if the browser is not supported
				mxUtils.error('Browser is not supported!', 200, false);
			}
			else
			{
				// Creates the graph inside the given container
				var graph = new mxGraph(container);
				graph.setHtmlLabels(true);
				
				// Adds handling of return and escape keystrokes for editing
				var keyHandler = new mxKeyHandler(graph);
				
				// Helper method that returns the fieldname to be used for
				// a mouse event
				var getFieldnameForEvent = function(cell, evt)
				{
					if (evt != null)
					{
						// Finds the relative coordinates inside the cell
						var point = mxUtils.convertPoint(graph.container,
							mxEvent.getClientX(evt), mxEvent.getClientY(evt));
						var state = graph.getView().getState(cell);
						
						if (state != null)
						{
							point.x -= state.x;
							point.y -= state.y;
							
							// Returns second if mouse in second half of cell
							if (point.y > state.height / 2)
							{
								return 'second';
							}
						}
					}
					
					return 'first';
				};
				
				// Returns a HTML representation of the cell where the
				// upper half is the first value, lower half is second
				// value
				graph.getLabel = function(cell)
				{
					var table = document.createElement('table');
					table.style.height = '100%';
					table.style.width = '100%';
					
					var body = document.createElement('tbody');
					var tr1 = document.createElement('tr');
					var td1 = document.createElement('td');
					td1.style.textAlign = 'center';
					td1.style.fontSize = '12px';
					td1.style.color = '#774400';
					mxUtils.write(td1, cell.value.first);
					
					var tr2 = document.createElement('tr');
					var td2 = document.createElement('td');
					td2.style.textAlign = 'center';
					td2.style.fontSize = '12px';
					td2.style.color = '#774400';
					mxUtils.write(td2, cell.value.second);
					
					tr1.appendChild(td1);
					tr2.appendChild(td2);
					body.appendChild(tr1);
					body.appendChild(tr2);
					table.appendChild(body);
					
					return table;
				};
				
				// Returns the editing value for the given cell and event
				graph.getEditingValue = function(cell, evt)
				{
					evt.fieldname = getFieldnameForEvent(cell, evt);

					return cell.value[evt.fieldname] || '';
				};
								
				// Sets the new value for the given cell and trigger
				graph.labelChanged = function(cell, newValue, trigger)
				{
					var name = (trigger != null) ? trigger.fieldname : null;
					
					if (name != null)
					{
						// Clones the user object for correct undo and puts
						// the new value in the correct field.
						var value = mxUtils.clone(cell.value);
						value[name] = newValue;
						newValue = value;
						
						mxGraph.prototype.labelChanged.apply(this, arguments);
					}
				};
				
				// Sample user objects with 2 fields
				var value = new Object();
				value.first = 'First value';
				value.second = 'Second value';
				
				// Gets the default parent for inserting new cells. This
				// is normally the first child of the root (ie. layer 0).
				var parent = graph.getDefaultParent();
								
				// Adds cells to the model in a single step
				graph.getModel().beginUpdate();
				try
				{
					var v1 = graph.insertVertex(parent, null, value, 100, 60, 120, 80, 'overflow=fill;');
				}
				finally
				{
					// Updates the display
					graph.getModel().endUpdate();
				}
			}
		};
	</script>
</head>

<!-- Page passes the container for the graph to the program -->
<body onload="main(document.getElementById('graphContainer'))">
	<p>
	 Double-click the upper/lower half of the cell to edit different fields of the user object.
	</p>
	<!-- Creates a container for the graph with a grid wallpaper -->
	<div id="graphContainer"
		style="overflow:hidden;position:relative;width:321px;height:241px;background:url('editors/images/grid.gif')">
	</div>
</body>
</html>