| /* |
| * Copyright (c) 2002, 2017, 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 javax.swing.plaf.synth; |
| |
| |
| import java.awt.*; |
| import java.awt.event.*; |
| import java.beans.*; |
| import java.util.*; |
| import javax.swing.*; |
| import javax.swing.plaf.*; |
| import javax.swing.plaf.basic.*; |
| |
| |
| /** |
| * Provides the Synth L&F UI delegate for |
| * {@link javax.swing.JSplitPane}. |
| * |
| * @author Scott Violet |
| * @since 1.7 |
| */ |
| public class SynthSplitPaneUI extends BasicSplitPaneUI |
| implements PropertyChangeListener, SynthUI { |
| /** |
| * Keys to use for forward focus traversal when the JComponent is |
| * managing focus. |
| */ |
| private Set<KeyStroke> managingFocusForwardTraversalKeys; |
| |
| /** |
| * Keys to use for backward focus traversal when the JComponent is |
| * managing focus. |
| */ |
| private Set<KeyStroke> managingFocusBackwardTraversalKeys; |
| |
| /** |
| * Style for the JSplitPane. |
| */ |
| private SynthStyle style; |
| /** |
| * Style for the divider. |
| */ |
| private SynthStyle dividerStyle; |
| |
| |
| /** |
| * Creates a new SynthSplitPaneUI instance |
| * |
| * @param x component to create UI object for |
| * @return the UI object |
| */ |
| public static ComponentUI createUI(JComponent x) { |
| return new SynthSplitPaneUI(); |
| } |
| |
| /** |
| * Installs the UI defaults. |
| */ |
| @Override |
| protected void installDefaults() { |
| updateStyle(splitPane); |
| |
| setOrientation(splitPane.getOrientation()); |
| setContinuousLayout(splitPane.isContinuousLayout()); |
| |
| resetLayoutManager(); |
| |
| /* Install the nonContinuousLayoutDivider here to avoid having to |
| add/remove everything later. */ |
| if(nonContinuousLayoutDivider == null) { |
| setNonContinuousLayoutDivider( |
| createDefaultNonContinuousLayoutDivider(), |
| true); |
| } else { |
| setNonContinuousLayoutDivider(nonContinuousLayoutDivider, true); |
| } |
| |
| // focus forward traversal key |
| if (managingFocusForwardTraversalKeys==null) { |
| managingFocusForwardTraversalKeys = new HashSet<KeyStroke>(); |
| managingFocusForwardTraversalKeys.add( |
| KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0)); |
| } |
| splitPane.setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, |
| managingFocusForwardTraversalKeys); |
| // focus backward traversal key |
| if (managingFocusBackwardTraversalKeys==null) { |
| managingFocusBackwardTraversalKeys = new HashSet<KeyStroke>(); |
| managingFocusBackwardTraversalKeys.add( |
| KeyStroke.getKeyStroke(KeyEvent.VK_TAB, InputEvent.SHIFT_MASK)); |
| } |
| splitPane.setFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, |
| managingFocusBackwardTraversalKeys); |
| } |
| |
| private void updateStyle(JSplitPane splitPane) { |
| SynthContext context = getContext(splitPane, Region.SPLIT_PANE_DIVIDER, |
| ENABLED); |
| SynthStyle oldDividerStyle = dividerStyle; |
| dividerStyle = SynthLookAndFeel.updateStyle(context, this); |
| |
| context = getContext(splitPane, ENABLED); |
| SynthStyle oldStyle = style; |
| |
| style = SynthLookAndFeel.updateStyle(context, this); |
| |
| if (style != oldStyle) { |
| Object value = style.get(context, "SplitPane.size"); |
| if (value == null) { |
| value = Integer.valueOf(6); |
| } |
| LookAndFeel.installProperty(splitPane, "dividerSize", value); |
| dividerSize = ((Number)value).intValue(); |
| |
| value = style.get(context, "SplitPane.oneTouchExpandable"); |
| if (value != null) { |
| LookAndFeel.installProperty(splitPane, "oneTouchExpandable", value); |
| } |
| |
| if (divider != null) { |
| splitPane.remove(divider); |
| divider.setDividerSize(splitPane.getDividerSize()); |
| } |
| if (oldStyle != null) { |
| uninstallKeyboardActions(); |
| installKeyboardActions(); |
| } |
| } |
| if (style != oldStyle || dividerStyle != oldDividerStyle) { |
| // Only way to force BasicSplitPaneDivider to reread the |
| // necessary properties. |
| if (divider != null) { |
| splitPane.remove(divider); |
| } |
| divider = createDefaultDivider(); |
| divider.setBasicSplitPaneUI(this); |
| splitPane.add(divider, JSplitPane.DIVIDER); |
| } |
| } |
| |
| /** |
| * Installs the event listeners for the UI. |
| */ |
| @Override |
| protected void installListeners() { |
| super.installListeners(); |
| splitPane.addPropertyChangeListener(this); |
| } |
| |
| /** |
| * Uninstalls the UI defaults. |
| */ |
| @Override |
| protected void uninstallDefaults() { |
| SynthContext context = getContext(splitPane, ENABLED); |
| |
| style.uninstallDefaults(context); |
| style = null; |
| |
| context = getContext(splitPane, Region.SPLIT_PANE_DIVIDER, ENABLED); |
| dividerStyle.uninstallDefaults(context); |
| dividerStyle = null; |
| |
| super.uninstallDefaults(); |
| } |
| |
| |
| /** |
| * Uninstalls the event listeners from the UI. |
| */ |
| @Override |
| protected void uninstallListeners() { |
| super.uninstallListeners(); |
| splitPane.removePropertyChangeListener(this); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public SynthContext getContext(JComponent c) { |
| return getContext(c, SynthLookAndFeel.getComponentState(c)); |
| } |
| |
| private SynthContext getContext(JComponent c, int state) { |
| return SynthContext.getContext(c, style, state); |
| } |
| |
| SynthContext getContext(JComponent c, Region region) { |
| return getContext(c, region, getComponentState(c, region)); |
| } |
| |
| private SynthContext getContext(JComponent c, Region region, int state) { |
| if (region == Region.SPLIT_PANE_DIVIDER) { |
| return SynthContext.getContext(c, region, dividerStyle, state); |
| } |
| return SynthContext.getContext(c, region, style, state); |
| } |
| |
| private int getComponentState(JComponent c, Region subregion) { |
| int state = SynthLookAndFeel.getComponentState(c); |
| |
| if (divider.isMouseOver()) { |
| state |= MOUSE_OVER; |
| } |
| return state; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void propertyChange(PropertyChangeEvent e) { |
| if (SynthLookAndFeel.shouldUpdateStyle(e)) { |
| updateStyle((JSplitPane)e.getSource()); |
| } |
| } |
| |
| /** |
| * Creates the default divider. |
| */ |
| @Override |
| public BasicSplitPaneDivider createDefaultDivider() { |
| SynthSplitPaneDivider divider = new SynthSplitPaneDivider(this); |
| |
| divider.setDividerSize(splitPane.getDividerSize()); |
| return divider; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| @SuppressWarnings("serial") // anonymous class |
| protected Component createDefaultNonContinuousLayoutDivider() { |
| return new Canvas() { |
| public void paint(Graphics g) { |
| paintDragDivider(g, 0, 0, getWidth(), getHeight()); |
| } |
| }; |
| } |
| |
| /** |
| * Notifies this UI delegate to repaint the specified component. |
| * This method paints the component background, then calls |
| * the {@link #paint(SynthContext,Graphics)} method. |
| * |
| * <p>In general, this method does not need to be overridden by subclasses. |
| * All Look and Feel rendering code should reside in the {@code paint} method. |
| * |
| * @param g the {@code Graphics} object used for painting |
| * @param c the component being painted |
| * @see #paint(SynthContext,Graphics) |
| */ |
| @Override |
| public void update(Graphics g, JComponent c) { |
| SynthContext context = getContext(c); |
| |
| SynthLookAndFeel.update(context, g); |
| context.getPainter().paintSplitPaneBackground(context, |
| g, 0, 0, c.getWidth(), c.getHeight()); |
| paint(context, g); |
| } |
| |
| /** |
| * Paints the specified component according to the Look and Feel. |
| * <p>This method is not used by Synth Look and Feel. |
| * Painting is handled by the {@link #paint(SynthContext,Graphics)} method. |
| * |
| * @param g the {@code Graphics} object used for painting |
| * @param c the component being painted |
| * @see #paint(SynthContext,Graphics) |
| */ |
| @Override |
| public void paint(Graphics g, JComponent c) { |
| SynthContext context = getContext(c); |
| |
| paint(context, g); |
| } |
| |
| /** |
| * Paints the specified component. This implementation does nothing. |
| * |
| * @param context context for the component being painted |
| * @param g the {@code Graphics} object used for painting |
| * @see #update(Graphics,JComponent) |
| */ |
| protected void paint(SynthContext context, Graphics g) { |
| // This is done to update package private variables in |
| // BasicSplitPaneUI |
| super.paint(g, splitPane); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void paintBorder(SynthContext context, Graphics g, int x, |
| int y, int w, int h) { |
| context.getPainter().paintSplitPaneBorder(context, g, x, y, w, h); |
| } |
| |
| private void paintDragDivider(Graphics g, int x, int y, int w, int h) { |
| SynthContext context = getContext(splitPane,Region.SPLIT_PANE_DIVIDER); |
| context.setComponentState(((context.getComponentState() | MOUSE_OVER) ^ |
| MOUSE_OVER) | PRESSED); |
| Shape oldClip = g.getClip(); |
| g.clipRect(x, y, w, h); |
| context.getPainter().paintSplitPaneDragDivider(context, g, x, y, w, h, |
| splitPane.getOrientation()); |
| g.setClip(oldClip); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void finishedPaintingChildren(JSplitPane jc, Graphics g) { |
| if(jc == splitPane && getLastDragLocation() != -1 && |
| !isContinuousLayout() && !draggingHW) { |
| if(jc.getOrientation() == JSplitPane.HORIZONTAL_SPLIT) { |
| paintDragDivider(g, getLastDragLocation(), 0, dividerSize - 1, |
| splitPane.getHeight() - 1); |
| } else { |
| paintDragDivider(g, 0, getLastDragLocation(), |
| splitPane.getWidth() - 1, dividerSize - 1); |
| } |
| } |
| } |
| } |
