Mercurial > hg > graal-compiler
view src/share/tools/IdealGraphVisualizer/View/src/com/sun/hotspot/igv/view/ExtendedPanAction.java @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
author | trims |
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date | Thu, 27 May 2010 19:08:38 -0700 |
parents | 30369db7f5d2 |
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/* * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ package com.sun.hotspot.igv.view; import java.awt.Container; import java.awt.Dimension; import java.awt.Point; import org.netbeans.api.visual.widget.Scene; import org.netbeans.api.visual.widget.Widget; import org.netbeans.api.visual.action.WidgetAction; import java.awt.event.MouseEvent; import javax.swing.JComponent; import javax.swing.JScrollPane; import javax.swing.SwingUtilities; /** * @author David Kaspar * @author Thomas Wuerthinger */ public class ExtendedPanAction extends WidgetAction.LockedAdapter { private Scene scene; private JScrollPane scrollPane; private Point lastLocation; protected boolean isLocked() { return scrollPane != null; } @Override public State mousePressed(Widget widget, WidgetMouseEvent event) { if (event.getButton() == MouseEvent.BUTTON2 || event.getButton() == MouseEvent.BUTTON1 && ((event.getModifiers() & MouseEvent.CTRL_MASK) != 0)) { scene = widget.getScene(); scrollPane = findScrollPane(scene.getView()); if (scrollPane != null) { lastLocation = scene.convertSceneToView(widget.convertLocalToScene(event.getPoint())); SwingUtilities.convertPointToScreen(lastLocation, scrollPane.getViewport().getView()); return State.createLocked(widget, this); } } return State.REJECTED; } private JScrollPane findScrollPane(JComponent component) { for (;;) { if (component == null) { return null; } if (component instanceof JScrollPane) { return ((JScrollPane) component); } Container parent = component.getParent(); if (!(parent instanceof JComponent)) { return null; } component = (JComponent) parent; } } @Override public State mouseReleased(Widget widget, WidgetMouseEvent event) { boolean state = pan(widget, event.getPoint()); if (state) { scrollPane = null; } return state ? State.createLocked(widget, this) : State.REJECTED; } @Override public State mouseDragged(Widget widget, WidgetMouseEvent event) { return pan(widget, event.getPoint()) ? State.createLocked(widget, this) : State.REJECTED; } private boolean pan(Widget widget, Point newLocation) { if (scrollPane == null || scene != widget.getScene()) { return false; } newLocation = scene.convertSceneToView(widget.convertLocalToScene(newLocation)); SwingUtilities.convertPointToScreen(newLocation, scrollPane.getViewport().getView()); Point viewPosition = scrollPane.getViewport().getViewPosition(); Dimension viewSize = scrollPane.getViewport().getViewSize(); Dimension viewPortSize = scrollPane.getViewport().getSize(); int xOffset = lastLocation.x - newLocation.x; int yOffset = lastLocation.y - newLocation.y; if (viewPortSize.height == viewSize.height) { yOffset = 0; } if (viewPortSize.width == viewSize.width) { xOffset = 0; } if (xOffset == 0 && yOffset == 0) { return true; } viewPosition = new Point(viewPosition.x + xOffset, viewPosition.y + yOffset); viewPosition.x = Math.max(viewPosition.x, 0); viewPosition.y = Math.max(viewPosition.y, 0); viewPosition.x = Math.min(viewPosition.x, scrollPane.getViewport().getView().getSize().width - scrollPane.getViewport().getSize().width); viewPosition.y = Math.min(viewPosition.y, scrollPane.getViewport().getView().getSize().height - scrollPane.getViewport().getSize().height); scrollPane.getViewport().setViewPosition(viewPosition); scrollPane.getViewport().getView().repaint(); lastLocation = newLocation; return true; } }