| /* |
| * Copyright (c) 1997, 1999, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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.java.swing.plaf.motif; |
| |
| import java.awt.*; |
| import java.awt.event.*; |
| import javax.swing.JSplitPane; |
| import javax.swing.UIManager; |
| import javax.swing.plaf.basic.BasicSplitPaneUI; |
| import javax.swing.plaf.basic.BasicSplitPaneDivider; |
| |
| |
| /** |
| * Divider used for Motif split pane. |
| * <p> |
| * <strong>Warning:</strong> |
| * Serialized objects of this class will not be compatible with |
| * future Swing releases. The current serialization support is appropriate |
| * for short term storage or RMI between applications running the same |
| * version of Swing. A future release of Swing will provide support for |
| * long term persistence. |
| * |
| * @author Jeff Dinkins |
| */ |
| public class MotifSplitPaneDivider extends BasicSplitPaneDivider |
| { |
| /** |
| * Default cursor, supers is package private, so we have to have one |
| * too. |
| */ |
| private static final Cursor defaultCursor = |
| Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR); |
| |
| |
| public static final int minimumThumbSize = 6; |
| public static final int defaultDividerSize = 18; |
| |
| protected static final int pad = 6; |
| |
| private int hThumbOffset = 30; |
| private int vThumbOffset = 40; |
| protected int hThumbWidth = 12; |
| protected int hThumbHeight = 18; |
| protected int vThumbWidth = 18; |
| protected int vThumbHeight = 12; |
| |
| protected Color highlightColor; |
| protected Color shadowColor; |
| protected Color focusedColor; |
| |
| /** |
| * Creates a new Motif SplitPaneDivider |
| */ |
| public MotifSplitPaneDivider(BasicSplitPaneUI ui) { |
| super(ui); |
| highlightColor = UIManager.getColor("SplitPane.highlight"); |
| shadowColor = UIManager.getColor("SplitPane.shadow"); |
| focusedColor = UIManager.getColor("SplitPane.activeThumb"); |
| setDividerSize(hThumbWidth + pad); |
| } |
| |
| /** |
| * overrides to hardcode the size of the divider |
| * PENDING(jeff) - rewrite JSplitPane so that this ins't needed |
| */ |
| public void setDividerSize(int newSize) { |
| Insets insets = getInsets(); |
| int borderSize = 0; |
| if (getBasicSplitPaneUI().getOrientation() == |
| JSplitPane.HORIZONTAL_SPLIT) { |
| if (insets != null) { |
| borderSize = insets.left + insets.right; |
| } |
| } |
| else if (insets != null) { |
| borderSize = insets.top + insets.bottom; |
| } |
| if (newSize < pad + minimumThumbSize + borderSize) { |
| setDividerSize(pad + minimumThumbSize + borderSize); |
| } else { |
| vThumbHeight = hThumbWidth = newSize - pad - borderSize; |
| super.setDividerSize(newSize); |
| } |
| } |
| |
| /** |
| * Paints the divider. |
| */ |
| // PENDING(jeff) - the thumb's location and size is currently hard coded. |
| // It should be dynamic. |
| public void paint(Graphics g) { |
| Color bgColor = getBackground(); |
| Dimension size = getSize(); |
| |
| // fill |
| g.setColor(getBackground()); |
| g.fillRect(0, 0, size.width, size.height); |
| |
| if(getBasicSplitPaneUI().getOrientation() == |
| JSplitPane.HORIZONTAL_SPLIT) { |
| int center = size.width/2; |
| int x = center - hThumbWidth/2; |
| int y = hThumbOffset; |
| |
| // split line |
| g.setColor(shadowColor); |
| g.drawLine(center-1, 0, center-1, size.height); |
| |
| g.setColor(highlightColor); |
| g.drawLine(center, 0, center, size.height); |
| |
| // draw thumb |
| g.setColor((splitPane.hasFocus()) ? focusedColor : |
| getBackground()); |
| g.fillRect(x+1, y+1, hThumbWidth-2, hThumbHeight-1); |
| |
| g.setColor(highlightColor); |
| g.drawLine(x, y, x+hThumbWidth-1, y); // top |
| g.drawLine(x, y+1, x, y+hThumbHeight-1); // left |
| |
| g.setColor(shadowColor); |
| g.drawLine(x+1, y+hThumbHeight-1, |
| x+hThumbWidth-1, y+hThumbHeight-1); // bottom |
| g.drawLine(x+hThumbWidth-1, y+1, |
| x+hThumbWidth-1, y+hThumbHeight-2); // right |
| |
| } else { |
| int center = size.height/2; |
| int x = size.width - vThumbOffset; |
| int y = size.height/2 - vThumbHeight/2; |
| |
| // split line |
| g.setColor(shadowColor); |
| g.drawLine(0, center-1, size.width, center-1); |
| |
| g.setColor(highlightColor); |
| g.drawLine(0, center, size.width, center); |
| |
| // draw thumb |
| g.setColor((splitPane.hasFocus()) ? focusedColor : |
| getBackground()); |
| g.fillRect(x+1, y+1, vThumbWidth-1, vThumbHeight-1); |
| |
| g.setColor(highlightColor); |
| g.drawLine(x, y, x+vThumbWidth, y); // top |
| g.drawLine(x, y+1, x, y+vThumbHeight); // left |
| |
| g.setColor(shadowColor); |
| g.drawLine(x+1, y+vThumbHeight, |
| x+vThumbWidth, y+vThumbHeight); // bottom |
| g.drawLine(x+vThumbWidth, y+1, |
| x+vThumbWidth, y+vThumbHeight-1); // right |
| } |
| super.paint(g); |
| |
| } |
| |
| /** |
| * The minimums size is the same as the preferredSize |
| */ |
| public Dimension getMinimumSize() { |
| return getPreferredSize(); |
| } |
| |
| /** |
| * Sets the SplitPaneUI that is using the receiver. This is completely |
| * overriden from super to create a different MouseHandler. |
| */ |
| public void setBasicSplitPaneUI(BasicSplitPaneUI newUI) { |
| if (splitPane != null) { |
| splitPane.removePropertyChangeListener(this); |
| if (mouseHandler != null) { |
| splitPane.removeMouseListener(mouseHandler); |
| splitPane.removeMouseMotionListener(mouseHandler); |
| removeMouseListener(mouseHandler); |
| removeMouseMotionListener(mouseHandler); |
| mouseHandler = null; |
| } |
| } |
| splitPaneUI = newUI; |
| if (newUI != null) { |
| splitPane = newUI.getSplitPane(); |
| if (splitPane != null) { |
| if (mouseHandler == null) mouseHandler=new MotifMouseHandler(); |
| splitPane.addMouseListener(mouseHandler); |
| splitPane.addMouseMotionListener(mouseHandler); |
| addMouseListener(mouseHandler); |
| addMouseMotionListener(mouseHandler); |
| splitPane.addPropertyChangeListener(this); |
| if (splitPane.isOneTouchExpandable()) { |
| oneTouchExpandableChanged(); |
| } |
| } |
| } |
| else { |
| splitPane = null; |
| } |
| } |
| |
| /** |
| * Returns true if the point at <code>x</code>, <code>y</code> |
| * is inside the thumb. |
| */ |
| private boolean isInThumb(int x, int y) { |
| Dimension size = getSize(); |
| int thumbX; |
| int thumbY; |
| int thumbWidth; |
| int thumbHeight; |
| |
| if (getBasicSplitPaneUI().getOrientation() == |
| JSplitPane.HORIZONTAL_SPLIT) { |
| int center = size.width/2; |
| thumbX = center - hThumbWidth/2; |
| thumbY = hThumbOffset; |
| thumbWidth = hThumbWidth; |
| thumbHeight = hThumbHeight; |
| } |
| else { |
| int center = size.height/2; |
| thumbX = size.width - vThumbOffset; |
| thumbY = size.height/2 - vThumbHeight/2; |
| thumbWidth = vThumbWidth; |
| thumbHeight = vThumbHeight; |
| } |
| return (x >= thumbX && x < (thumbX + thumbWidth) && |
| y >= thumbY && y < (thumbY + thumbHeight)); |
| } |
| |
| // |
| // Two methods are exposed so that MotifMouseHandler can see the |
| // superclass protected ivars |
| // |
| |
| private DragController getDragger() { |
| return dragger; |
| } |
| |
| private JSplitPane getSplitPane() { |
| return splitPane; |
| } |
| |
| |
| /** |
| * MouseHandler is subclassed to only pass off to super if the mouse |
| * is in the thumb. Motif only allows dragging when the thumb is clicked |
| * in. |
| */ |
| private class MotifMouseHandler extends MouseHandler { |
| public void mousePressed(MouseEvent e) { |
| // Constrain the mouse pressed to the thumb. |
| if (e.getSource() == MotifSplitPaneDivider.this && |
| getDragger() == null && getSplitPane().isEnabled() && |
| isInThumb(e.getX(), e.getY())) { |
| super.mousePressed(e); |
| } |
| } |
| |
| public void mouseMoved(MouseEvent e) { |
| if (getDragger() != null) { |
| return; |
| } |
| if (!isInThumb(e.getX(), e.getY())) { |
| if (getCursor() != defaultCursor) { |
| setCursor(defaultCursor); |
| } |
| return; |
| } |
| super.mouseMoved(e); |
| } |
| } |
| } |