/* * Smart GWT (GWT for SmartClient) * Copyright 2008 and beyond, Isomorphic Software, Inc. * * Smart GWT is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License version 3 * as published by the Free Software Foundation. Smart GWT is also * available under typical commercial license terms - see * http://smartclient.com/license * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. */ import com.smartgwt.client.types.Cursor; import com.smartgwt.client.types.Overflow; import com.smartgwt.client.widgets.Canvas; import com.smartgwt.client.widgets.Slider; import com.smartgwt.client.widgets.drawing.DrawCurve; import com.smartgwt.client.widgets.drawing.DrawLabel; import com.smartgwt.client.widgets.drawing.DrawLine; import com.smartgwt.client.widgets.drawing.DrawLinePath; import com.smartgwt.client.widgets.drawing.DrawOval; import com.smartgwt.client.widgets.drawing.DrawPane; import com.smartgwt.client.widgets.drawing.DrawPath; import com.smartgwt.client.widgets.drawing.DrawRect; import com.smartgwt.client.widgets.drawing.DrawSector; import com.smartgwt.client.widgets.drawing.DrawTriangle; import com.smartgwt.client.widgets.drawing.Point; import com.smartgwt.client.widgets.events.DrawEvent; import com.smartgwt.client.widgets.events.DrawHandler; import com.smartgwt.client.widgets.events.ValueChangedEvent; import com.smartgwt.client.widgets.events.ValueChangedHandler; import com.smartgwt.client.widgets.layout.VLayout; import com.google.gwt.core.client.EntryPoint; public class ZoomAndPanSample implements EntryPoint { private DrawPane drawPane; public void onModuleLoad() { drawPane = new DrawPane(); drawPane.setHeight(450); drawPane.setWidth(700); drawPane.setLeft(25); drawPane.setShowEdges(true); drawPane.setEdgeSize(4); drawPane.setBackgroundColor("papayawhip"); drawPane.setOverflow(Overflow.HIDDEN); drawPane.setCursor(Cursor.AUTO); drawPane.addDrawHandler(new DrawHandler() { @Override public void onDraw(DrawEvent event) { DrawPane drawPane = (DrawPane) event.getSource(); DrawLabel triangleLabel = new DrawLabel(); triangleLabel.setDrawPane(drawPane); triangleLabel.setLeft(50); triangleLabel.setTop(175); triangleLabel.setContents("Triangle"); triangleLabel.draw(); DrawTriangle drawTriangle = new DrawTriangle(); drawTriangle.setDrawPane(drawPane); drawTriangle.setPoints(new Point(100,50),new Point(150,150),new Point(50,150)); drawTriangle.draw(); DrawLabel curveLabel = new DrawLabel(); curveLabel.setDrawPane(drawPane); curveLabel.setLeft(200); curveLabel.setTop(175); curveLabel.setContents("Curve"); curveLabel.draw(); DrawCurve drawCurve = new DrawCurve(); drawCurve.setDrawPane(drawPane); drawCurve.setStartPoint(new Point(200,50)); drawCurve.setEndPoint(new Point(300,150)); drawCurve.setControlPoint1(new Point(250,0)); drawCurve.setControlPoint2(new Point(250,200)); drawCurve.draw(); DrawLabel linePathLabel = new DrawLabel(); linePathLabel.setDrawPane(drawPane); linePathLabel.setLeft(350); linePathLabel.setTop(175); linePathLabel.setContents("Line Path"); linePathLabel.draw(); DrawLinePath drawLinePath = new DrawLinePath(); drawLinePath.setDrawPane(drawPane); drawLinePath.setStartPoint(new Point(350,50)); drawLinePath.setEndPoint(new Point(450,150)); drawLinePath.draw(); DrawLabel pathLabel = new DrawLabel(); pathLabel.setDrawPane(drawPane); pathLabel.setLeft(500); pathLabel.setTop(175); pathLabel.setContents("Path"); pathLabel.draw(); DrawPath drawPath = new DrawPath(); drawPath.setDrawPane(drawPane); drawPath.setPoints( new Point(500,50), new Point(525,50), new Point(550,75), new Point(575,75), new Point(600,75), new Point(600,125), new Point(575,125), new Point(550,125), new Point(525,150), new Point(500,150) ); drawPath.draw(); DrawLabel ovalLabel = new DrawLabel(); ovalLabel.setDrawPane(drawPane); ovalLabel.setLeft(50); ovalLabel.setTop(415); ovalLabel.setContents("Oval"); ovalLabel.draw(); DrawOval drawOval = new DrawOval(); drawOval.setDrawPane(drawPane); drawOval.setLeft(50); drawOval.setTop(300); drawOval.setWidth(100); drawOval.setHeight(100); drawOval.draw(); DrawLabel rectLabel = new DrawLabel(); rectLabel.setDrawPane(drawPane); rectLabel.setLeft(200); rectLabel.setTop(415); rectLabel.setContents("Rect"); rectLabel.draw(); DrawRect drawRect = new DrawRect(); drawRect.setDrawPane(drawPane); drawRect.setLeft(200); drawRect.setTop(300); drawRect.setWidth(150); drawRect.setHeight(100); drawRect.draw(); DrawLabel lineLabel = new DrawLabel(); lineLabel.setDrawPane(drawPane); lineLabel.setLeft(400); lineLabel.setTop(415); lineLabel.setContents("Line"); lineLabel.draw(); DrawLine drawLine = new DrawLine(); drawLine.setDrawPane(drawPane); drawLine.setStartPoint(new Point(400,300)); drawLine.setEndPoint(new Point(500,400)); drawLine.draw(); DrawLabel sectorLabel = new DrawLabel(); sectorLabel.setDrawPane(drawPane); sectorLabel.setLeft(550); sectorLabel.setTop(415); sectorLabel.setContents("Sector"); sectorLabel.draw(); DrawSector drawSector = new DrawSector(); drawSector.setDrawPane(drawPane); drawSector.setCenterPoint(new Point(550,300)); drawSector.setStartAngle(0); drawSector.setEndAngle(90); drawSector.setRadius(100); drawSector.draw(); } }); ValueChangedHandler paneRotationSliderValueChangeHandler = new ValueChangedHandler() { @Override public void onValueChanged(ValueChangedEvent event) { if (drawPane.isCreated()) { drawPane.rotate(event.getValue()); } } }; Slider paneRotationSlider = new Slider(); paneRotationSlider.setMinValue(0); paneRotationSlider.setMaxValue(360); paneRotationSlider.setNumValues(360); paneRotationSlider.setWidth(400); paneRotationSlider.setLeft(25); paneRotationSlider.setTop(500); paneRotationSlider.setValue(0); paneRotationSlider.setTitle("Rotate Pane"); paneRotationSlider.setVertical(false); paneRotationSlider.addValueChangedHandler(paneRotationSliderValueChangeHandler); paneRotationSlider.draw(); ValueChangedHandler zoomSliderValueChangeHandler = new ValueChangedHandler() { @Override public void onValueChanged(ValueChangedEvent event) { if (drawPane.isCreated()) { drawPane.zoom(event.getValue()); } } }; Slider zoomSlider = new Slider(); zoomSlider.setMinValue(.10f); zoomSlider.setMaxValue(3.0f); zoomSlider.setNumValues(300); zoomSlider.setWidth(400); zoomSlider.setLeft(25); zoomSlider.setTop(550); zoomSlider.setValue(1.0f); zoomSlider.setRoundValues(false); zoomSlider.setRoundPrecision(2); zoomSlider.setTitle("Zoom Shapes"); zoomSlider.setVertical(false); zoomSlider.addValueChangedHandler(zoomSliderValueChangeHandler); zoomSlider.draw(); VLayout layout = new VLayout(); layout.addMember(drawPane); layout.addMember(paneRotationSlider); layout.addMember(zoomSlider); layout.draw(); } }