2021-03-24 22:54:38 +00:00
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/**
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* Copyright (c) 2006-2013, JGraph Ltd
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2022-01-18 07:46:56 +00:00
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*
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* Show region
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*
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* This example demonstrates using a custom
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* rubberband handler to show the selected region in a new window.
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2021-03-24 22:54:38 +00:00
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*/
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import React from 'react';
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import mxEvent from '../mxgraph/util/mxEvent';
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import mxGraph from '../mxgraph/view/mxGraph';
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import mxRubberband from '../mxgraph/handler/mxRubberband';
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2021-03-25 03:59:23 +00:00
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import mxConstants from "../mxgraph/util/mxConstants";
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import mxPopupMenu from "../mxgraph/util/mxPopupMenu";
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import mxRectangle from "../mxgraph/util/mxRectangle";
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import mxUtils from "../mxgraph/util/mxUtils";
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2021-03-24 22:54:38 +00:00
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2022-01-18 07:46:56 +00:00
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const HTML_TEMPLATE = `
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<style type="text/css">
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2021-03-24 22:54:38 +00:00
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body div.mxPopupMenu {
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-webkit-box-shadow: 3px 3px 6px #C0C0C0;
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-moz-box-shadow: 3px 3px 6px #C0C0C0;
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box-shadow: 3px 3px 6px #C0C0C0;
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background: white;
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position: absolute;
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border: 3px solid #e7e7e7;
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padding: 3px;
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}
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body table.mxPopupMenu {
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border-collapse: collapse;
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margin: 0px;
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}
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body tr.mxPopupMenuItem {
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color: black;
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cursor: default;
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}
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body td.mxPopupMenuItem {
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padding: 6px 60px 6px 30px;
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font-family: Arial;
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font-size: 10pt;
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}
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body td.mxPopupMenuIcon {
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background-color: white;
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padding: 0px;
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}
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body tr.mxPopupMenuItemHover {
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background-color: #eeeeee;
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color: black;
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}
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table.mxPopupMenu hr {
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border-top: solid 1px #cccccc;
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}
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table.mxPopupMenu tr {
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font-size: 4pt;
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}
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</style>
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<!-- Page passes the container for the graph to the program -->
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<body onload="main(document.getElementById('graphContainer'))">
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<!-- Creates a container for the graph with a grid wallpaper -->
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<div id="graphContainer"
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style="overflow:hidden;width:321px;height:241px;background:url('editors/images/grid.gif');cursor:default;">
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</div>
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Use the right mouse button to select a region of the diagram and select <i>Show this</i>.
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</body>
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2022-01-18 07:46:56 +00:00
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`
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// Disables built-in context menu
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mxEvent.disableContextMenu(this.el);
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// Changes some default colors
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mxConstants.HANDLE_FILLCOLOR = '#99ccff';
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mxConstants.HANDLE_STROKECOLOR = '#0088cf';
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mxConstants.VERTEX_SELECTION_COLOR = '#00a8ff';
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// Creates the graph inside the given container
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let graph = new mxGraph(container);
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// Enables rubberband selection
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let rubberband = new mxRubberband(graph);
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rubberband.isForceRubberbandEvent = function(me) {
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return mxRubberband.prototype.isForceRubberbandEvent.apply(this, arguments) || mxEvent.isPopupTrigger(me.getEvent());
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}
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// Defines a new popup menu for region selection in the rubberband handler
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rubberband.popupMenu = new mxPopupMenu(function(menu, cell, evt) {
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let rect = new mxRectangle(rubberband.x, rubberband.y, rubberband.width, rubberband.height);
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menu.addItem('Show this', null, function() {
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rubberband.popupMenu.hideMenu();
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let bounds = graph.getGraphBounds();
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mxUtils.show(graph, null, bounds.x - rubberband.x, bounds.y - rubberband.y, rubberband.width, rubberband.height);
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});
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});
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let rubberbandMouseDown = rubberband.mouseDown;
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rubberband.mouseDown = function(sender, me) {
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this.popupMenu.hideMenu();
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rubberbandMouseDown.apply(this, arguments);
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};
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let rubberbandMouseUp = rubberband.mouseUp;
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rubberband.mouseUp = function(sender, me) {
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if (this.div != null && mxEvent.isPopupTrigger(me.getEvent())) {
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if (!graph.getPlugin('PopupMenuHandler').isMenuShowing()) {
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let origin = mxUtils.getScrollOrigin();
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this.popupMenu.popup(me.getX() + origin.x + 1, me.getY() + origin.y + 1, null, me.getEvent());
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this.reset();
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}
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} else {
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rubberbandMouseUp.apply(this, arguments);
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}
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};
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// Gets the default parent for inserting new cells. This
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// is normally the first child of the root (ie. layer 0).
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let parent = graph.getDefaultParent();
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// Adds cells to the model in a single step
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graph.getDataModel().beginUpdate();
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try {
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var v1 = graph.insertVertex(parent, null, 'Hello,', 20, 20, 80, 30);
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var v2 = graph.insertVertex(parent, null, 'World!', 200, 150, 80, 30);
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var e1 = graph.insertEdge(parent, null, '', v1, v2);
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} finally {
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// Updates the display
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graph.getDataModel().endUpdate();
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}
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