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package javax.swing.plaf.synth;


import java.awt.*;
import java.awt.event.*;
import java.beans.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.*;
import sun.swing.plaf.synth.SynthUI;


Synth's SplitPaneUI.
Author:Scott Violet
/** * Synth's SplitPaneUI. * * @author Scott Violet */
class SynthSplitPaneUI extends BasicSplitPaneUI implements PropertyChangeListener, SynthUI {
Keys to use for forward focus traversal when the JComponent is managing focus.
/** * Keys to use for forward focus traversal when the JComponent is * managing focus. */
private static Set<KeyStroke> managingFocusForwardTraversalKeys;
Keys to use for backward focus traversal when the JComponent is managing focus.
/** * Keys to use for backward focus traversal when the JComponent is * managing focus. */
private static Set<KeyStroke> managingFocusBackwardTraversalKeys;
Style for the JSplitPane.
/** * Style for the JSplitPane. */
private SynthStyle style;
Style for the divider.
/** * Style for the divider. */
private SynthStyle dividerStyle;
Creates a new SynthSplitPaneUI instance
/** * Creates a new SynthSplitPaneUI instance */
public static ComponentUI createUI(JComponent x) { return new SynthSplitPaneUI(); }
Installs the UI defaults.
/** * Installs the UI defaults. */
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.dispose(); 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 = new Integer(6); } LookAndFeel.installProperty(splitPane, "dividerSize", value); 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); } context.dispose(); }
Installs the event listeners for the UI.
/** * Installs the event listeners for the UI. */
protected void installListeners() { super.installListeners(); splitPane.addPropertyChangeListener(this); }
Uninstalls the UI defaults.
/** * Uninstalls the UI defaults. */
protected void uninstallDefaults() { SynthContext context = getContext(splitPane, ENABLED); style.uninstallDefaults(context); context.dispose(); style = null; context = getContext(splitPane, Region.SPLIT_PANE_DIVIDER, ENABLED); dividerStyle.uninstallDefaults(context); context.dispose(); dividerStyle = null; super.uninstallDefaults(); }
Uninstalls the event listeners for the UI.
/** * Uninstalls the event listeners for the UI. */
protected void uninstallListeners() { super.uninstallListeners(); splitPane.removePropertyChangeListener(this); } public SynthContext getContext(JComponent c) { return getContext(c, getComponentState(c)); } private SynthContext getContext(JComponent c, int state) { return SynthContext.getContext(SynthContext.class, c, SynthLookAndFeel.getRegion(c), style, state); } private Region getRegion(JComponent c) { return SynthLookAndFeel.getRegion(c); } private int getComponentState(JComponent c) { return SynthLookAndFeel.getComponentState(c); } 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(SynthContext.class, c, region, dividerStyle, state); } return SynthContext.getContext(SynthContext.class, c, region, style, state); } private int getComponentState(JComponent c, Region subregion) { int state = SynthLookAndFeel.getComponentState(c); if (divider.isMouseOver()) { state |= MOUSE_OVER; } return state; } public void propertyChange(PropertyChangeEvent e) { if (SynthLookAndFeel.shouldUpdateStyle(e)) { updateStyle((JSplitPane)e.getSource()); } }
Creates the default divider.
/** * Creates the default divider. */
public BasicSplitPaneDivider createDefaultDivider() { SynthSplitPaneDivider divider = new SynthSplitPaneDivider(this); divider.setDividerSize(splitPane.getDividerSize()); return divider; } protected Component createDefaultNonContinuousLayoutDivider() { return new Canvas() { public void paint(Graphics g) { paintDragDivider(g, 0, 0, getWidth(), getHeight()); } }; } 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); context.dispose(); } public void paint(Graphics g, JComponent c) { SynthContext context = getContext(c); paint(context, g); context.dispose(); } protected void paint(SynthContext context, Graphics g) { // This is done to update package private variables in // BasicSplitPaneUI super.paint(g, splitPane); } 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); context.dispose(); } 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); } } } }