- /*
- * @(#)SynthScrollPaneUI.java 1.12 03/12/19
- *
- * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
- * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
- */
-
- package javax.swing.plaf.synth;
-
- import javax.swing.*;
- import javax.swing.event.*;
- import javax.swing.border.*;
- import javax.swing.plaf.*;
- import javax.swing.plaf.basic.*;
-
- import java.beans.PropertyChangeListener;
- import java.beans.PropertyChangeEvent;
-
- import java.awt.*;
- import java.awt.event.*;
- import sun.swing.plaf.synth.SynthUI;
-
-
- /**
- * Synth's ScrollPaneUI.
- *
- * @version 1.12, 12/19/03
- * @author Scott Violet
- */
- class SynthScrollPaneUI extends BasicScrollPaneUI implements
- PropertyChangeListener, SynthUI {
- private SynthStyle style;
-
- public static ComponentUI createUI(JComponent x) {
- return new SynthScrollPaneUI();
- }
-
- public void update(Graphics g, JComponent c) {
- SynthContext context = getContext(c);
-
- SynthLookAndFeel.update(context, g);
- context.getPainter().paintScrollPaneBackground(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) {
- Border vpBorder = scrollpane.getViewportBorder();
- if (vpBorder != null) {
- Rectangle r = scrollpane.getViewportBorderBounds();
- vpBorder.paintBorder(scrollpane, g, r.x, r.y, r.width, r.height);
- }
- }
-
-
- public void paintBorder(SynthContext context, Graphics g, int x,
- int y, int w, int h) {
- context.getPainter().paintScrollPaneBorder(context, g, x, y, w, h);
- }
-
- protected void installDefaults(JScrollPane scrollpane) {
- updateStyle(scrollpane);
- }
-
- private void updateStyle(JScrollPane c) {
- SynthContext context = getContext(c, ENABLED);
- SynthStyle oldStyle = style;
-
- style = SynthLookAndFeel.updateStyle(context, this);
- if (style != oldStyle) {
- Border vpBorder = scrollpane.getViewportBorder();
- if ((vpBorder == null) ||( vpBorder instanceof UIResource)) {
- scrollpane.setViewportBorder(new ViewportBorder(context));
- }
- if (oldStyle != null) {
- uninstallKeyboardActions(c);
- installKeyboardActions(c);
- }
- }
- context.dispose();
- }
-
-
- protected void installListeners(JScrollPane c) {
- super.installListeners(c);
- c.addPropertyChangeListener(this);
- }
-
- protected void uninstallDefaults(JScrollPane c) {
- SynthContext context = getContext(c, ENABLED);
-
- style.uninstallDefaults(context);
- context.dispose();
-
- if (scrollpane.getViewportBorder() instanceof UIResource) {
- scrollpane.setViewportBorder(null);
- }
- }
-
-
- protected void uninstallListeners(JComponent c) {
- super.uninstallListeners(c);
- c.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);
- }
-
- public void propertyChange(PropertyChangeEvent e) {
- if (SynthLookAndFeel.shouldUpdateStyle(e)) {
- updateStyle(scrollpane);
- }
- }
-
-
-
- private class ViewportBorder extends AbstractBorder implements UIResource {
- private Insets insets;
-
- ViewportBorder(SynthContext context) {
- this.insets = (Insets)context.getStyle().get(context,
- "ScrollPane.viewportBorderInsets");
- if (this.insets == null) {
- this.insets = SynthLookAndFeel.EMPTY_UIRESOURCE_INSETS;
- }
- }
-
- public void paintBorder(Component c, Graphics g, int x, int y,
- int width, int height) {
- JComponent jc = (JComponent)c;
- SynthContext context = getContext(jc);
- SynthStyle style = context.getStyle();
- if (style == null) {
- assert false: "SynthBorder is being used outside after the " +
- " UI has been uninstalled";
- return;
- }
- context.getPainter().paintViewportBorder(context, g, x, y, width,
- height);
- context.dispose();
- }
-
- public Insets getBorderInsets(Component c) {
- return getBorderInsets(c, null);
- }
-
- public Insets getBorderInsets(Component c, Insets insets) {
- if (insets == null) {
- return new Insets(this.insets.top, this.insets.left,
- this.insets.bottom, this.insets.right);
- }
- insets.top = this.insets.top;
- insets.bottom = this.insets.bottom;
- insets.left = this.insets.left;
- insets.right = this.insets.left;
- return insets;
- }
-
- public boolean isBorderOpaque() {
- return false;
- }
- }
- }