/* * Copyright (c) 2002, 2010, 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 javax.swing.*;import javax.swing.text.JTextComponent;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.ContainerListener;import java.awt.event.ContainerEvent;import java.awt.event.FocusListener;import java.awt.event.FocusEvent; /** * Provides the Synth L&F UI delegate for * {@link javax.swing.JScrollPane}. * * @author Scott Violet * @since 1.7 */public class SynthScrollPaneUI extends BasicScrollPaneUI implements PropertyChangeListener, SynthUI { private SynthStyle style; private boolean viewportViewHasFocus = false; private ViewportViewFocusHandler viewportViewFocusHandler; /** * Creates a new UI object for the given component. * * @param x component to create UI object for * @return the UI object */ public static ComponentUI createUI(JComponent x) { return new SynthScrollPaneUI(); } /** * 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().paintScrollPaneBackground(context, g, 0, 0, c.getWidth(), c.getHeight()); paint(context, g); context.dispose(); } /** * 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); context.dispose(); } /** * Paints the specified component. * * @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) { Border vpBorder = scrollpane.getViewportBorder(); if (vpBorder != null) { Rectangle r = scrollpane.getViewportBorderBounds(); vpBorder.paintBorder(scrollpane, g, r.x, r.y, r.width, r.height); } } /** * @inheritDoc */ @Override public void paintBorder(SynthContext context, Graphics g, int x, int y, int w, int h) { context.getPainter().paintScrollPaneBorder(context, g, x, y, w, h); } /** * @inheritDoc */ @Override 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(); } /** * @inheritDoc */ @Override protected void installListeners(JScrollPane c) { super.installListeners(c); c.addPropertyChangeListener(this); if (UIManager.getBoolean("ScrollPane.useChildTextComponentFocus")){ viewportViewFocusHandler = new ViewportViewFocusHandler(); c.getViewport().addContainerListener(viewportViewFocusHandler); Component view = c.getViewport().getView(); if (view instanceof JTextComponent) { view.addFocusListener(viewportViewFocusHandler); } } } /** * @inheritDoc */ @Override protected void uninstallDefaults(JScrollPane c) { SynthContext context = getContext(c, ENABLED); style.uninstallDefaults(context); context.dispose(); if (scrollpane.getViewportBorder() instanceof UIResource) { scrollpane.setViewportBorder(null); } } /** * @inheritDoc */ @Override protected void uninstallListeners(JComponent c) { super.uninstallListeners(c); c.removePropertyChangeListener(this); if (viewportViewFocusHandler != null) { JViewport viewport = ((JScrollPane) c).getViewport(); viewport.removeContainerListener(viewportViewFocusHandler); if (viewport.getView()!= null) { viewport.getView().removeFocusListener(viewportViewFocusHandler); } viewportViewFocusHandler = null; } } /** * @inheritDoc */ @Override 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 int getComponentState(JComponent c) { int baseState = SynthLookAndFeel.getComponentState(c); if (viewportViewFocusHandler!=null && viewportViewHasFocus){ baseState = baseState | FOCUSED; } return baseState; } 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; } } @Override 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(); } @Override 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; } @Override public boolean isBorderOpaque() { return false; } } /** * Handle keeping track of the viewport's view's focus */ private class ViewportViewFocusHandler implements ContainerListener, FocusListener{ public void componentAdded(ContainerEvent e) { if (e.getChild() instanceof JTextComponent) { e.getChild().addFocusListener(this); viewportViewHasFocus = e.getChild().isFocusOwner(); scrollpane.repaint(); } } public void componentRemoved(ContainerEvent e) { if (e.getChild() instanceof JTextComponent) { e.getChild().removeFocusListener(this); } } public void focusGained(FocusEvent e) { viewportViewHasFocus = true; scrollpane.repaint(); } public void focusLost(FocusEvent e) { viewportViewHasFocus = false; scrollpane.repaint(); } }}
/*
* Copyright (c) 2002, 2010, 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 javax.swing.*;
import javax.swing.text.JTextComponent;
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.ContainerListener;
import java.awt.event.ContainerEvent;
import java.awt.event.FocusListener;
import java.awt.event.FocusEvent;
/**
* Provides the Synth L&F UI delegate for
* {@link javax.swing.JScrollPane}.
*
* @author Scott Violet
* @since 1.7
*/
public class SynthScrollPaneUI extends BasicScrollPaneUI
implements PropertyChangeListener, SynthUI {
private SynthStyle style;
private boolean viewportViewHasFocus = false;
private ViewportViewFocusHandler viewportViewFocusHandler;
/**
* Creates a new UI object for the given component.
*
* @param x component to create UI object for
* @return the UI object
*/
public static ComponentUI createUI(JComponent x) {
return new SynthScrollPaneUI();
}
/**
* 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().paintScrollPaneBackground(context,
g, 0, 0, c.getWidth(), c.getHeight());
paint(context, g);
context.dispose();
}
/**
* 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);
context.dispose();
}
/**
* Paints the specified component.
*
* @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) {
Border vpBorder = scrollpane.getViewportBorder();
if (vpBorder != null) {
Rectangle r = scrollpane.getViewportBorderBounds();
vpBorder.paintBorder(scrollpane, g, r.x, r.y, r.width, r.height);
}
}
/**
* @inheritDoc
*/
@Override
public void paintBorder(SynthContext context, Graphics g, int x,
int y, int w, int h) {
context.getPainter().paintScrollPaneBorder(context, g, x, y, w, h);
}
/**
* @inheritDoc
*/
@Override
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();
}
/**
* @inheritDoc
*/
@Override
protected void installListeners(JScrollPane c) {
super.installListeners(c);
c.addPropertyChangeListener(this);
if (UIManager.getBoolean("ScrollPane.useChildTextComponentFocus")){
viewportViewFocusHandler = new ViewportViewFocusHandler();
c.getViewport().addContainerListener(viewportViewFocusHandler);
Component view = c.getViewport().getView();
if (view instanceof JTextComponent) {
view.addFocusListener(viewportViewFocusHandler);
}
}
}
/**
* @inheritDoc
*/
@Override
protected void uninstallDefaults(JScrollPane c) {
SynthContext context = getContext(c, ENABLED);
style.uninstallDefaults(context);
context.dispose();
if (scrollpane.getViewportBorder() instanceof UIResource) {
scrollpane.setViewportBorder(null);
}
}
/**
* @inheritDoc
*/
@Override
protected void uninstallListeners(JComponent c) {
super.uninstallListeners(c);
c.removePropertyChangeListener(this);
if (viewportViewFocusHandler != null) {
JViewport viewport = ((JScrollPane) c).getViewport();
viewport.removeContainerListener(viewportViewFocusHandler);
if (viewport.getView()!= null) {
viewport.getView().removeFocusListener(viewportViewFocusHandler);
}
viewportViewFocusHandler = null;
}
}
/**
* @inheritDoc
*/
@Override
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 int getComponentState(JComponent c) {
int baseState = SynthLookAndFeel.getComponentState(c);
if (viewportViewFocusHandler!=null && viewportViewHasFocus){
baseState = baseState | FOCUSED;
}
return baseState;
}
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;
}
}
@Override
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();
}
@Override
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;
}
@Override
public boolean isBorderOpaque() {
return false;
}
}
/**
* Handle keeping track of the viewport's view's focus
*/
private class ViewportViewFocusHandler implements ContainerListener,
FocusListener{
public void componentAdded(ContainerEvent e) {
if (e.getChild() instanceof JTextComponent) {
e.getChild().addFocusListener(this);
viewportViewHasFocus = e.getChild().isFocusOwner();
scrollpane.repaint();
}
}
public void componentRemoved(ContainerEvent e) {
if (e.getChild() instanceof JTextComponent) {
e.getChild().removeFocusListener(this);
}
}
public void focusGained(FocusEvent e) {
viewportViewHasFocus = true;
scrollpane.repaint();
}
public void focusLost(FocusEvent e) {
viewportViewHasFocus = false;
scrollpane.repaint();
}
}
}