| /* |
| * Copyright (c) 2002, 2005, 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.plaf.*; |
| import javax.swing.plaf.basic.*; |
| import javax.swing.text.View; |
| import java.awt.Dimension; |
| import java.awt.Rectangle; |
| import java.awt.Insets; |
| import java.awt.Graphics; |
| import java.awt.FontMetrics; |
| import java.beans.PropertyChangeEvent; |
| |
| /** |
| * Provides the Synth L&F UI delegate for |
| * {@link javax.swing.JLabel}. |
| * |
| * @author Scott Violet |
| * @since 1.7 |
| */ |
| public class SynthLabelUI extends BasicLabelUI implements SynthUI { |
| private SynthStyle style; |
| |
| /** |
| * Returns the LabelUI implementation used for the skins look and feel. |
| * |
| * @param c component to create UI object for |
| * @return the UI object |
| */ |
| public static ComponentUI createUI(JComponent c){ |
| return new SynthLabelUI(); |
| } |
| |
| /** |
| * @inheritDoc |
| */ |
| @Override |
| protected void installDefaults(JLabel c) { |
| updateStyle(c); |
| } |
| |
| void updateStyle(JLabel c) { |
| SynthContext context = getContext(c, ENABLED); |
| style = SynthLookAndFeel.updateStyle(context, this); |
| context.dispose(); |
| } |
| |
| /** |
| * @inheritDoc |
| */ |
| @Override |
| protected void uninstallDefaults(JLabel c){ |
| SynthContext context = getContext(c, ENABLED); |
| |
| style.uninstallDefaults(context); |
| context.dispose(); |
| style = 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 state = SynthLookAndFeel.getComponentState(c); |
| if (SynthLookAndFeel.selectedUI == this && |
| state == SynthConstants.ENABLED) { |
| state = SynthLookAndFeel.selectedUIState | SynthConstants.ENABLED; |
| } |
| return state; |
| } |
| |
| /** |
| * @inheritDoc |
| */ |
| @Override |
| public int getBaseline(JComponent c, int width, int height) { |
| if (c == null) { |
| throw new NullPointerException("Component must be non-null"); |
| } |
| if (width < 0 || height < 0) { |
| throw new IllegalArgumentException( |
| "Width and height must be >= 0"); |
| } |
| JLabel label = (JLabel)c; |
| String text = label.getText(); |
| if (text == null || "".equals(text)) { |
| return -1; |
| } |
| Insets i = label.getInsets(); |
| Rectangle viewRect = new Rectangle(); |
| Rectangle textRect = new Rectangle(); |
| Rectangle iconRect = new Rectangle(); |
| viewRect.x = i.left; |
| viewRect.y = i.top; |
| viewRect.width = width - (i.right + viewRect.x); |
| viewRect.height = height - (i.bottom + viewRect.y); |
| |
| // layout the text and icon |
| SynthContext context = getContext(label); |
| FontMetrics fm = context.getComponent().getFontMetrics( |
| context.getStyle().getFont(context)); |
| context.getStyle().getGraphicsUtils(context).layoutText( |
| context, fm, label.getText(), label.getIcon(), |
| label.getHorizontalAlignment(), label.getVerticalAlignment(), |
| label.getHorizontalTextPosition(), label.getVerticalTextPosition(), |
| viewRect, iconRect, textRect, label.getIconTextGap()); |
| View view = (View)label.getClientProperty(BasicHTML.propertyKey); |
| int baseline; |
| if (view != null) { |
| baseline = BasicHTML.getHTMLBaseline(view, textRect.width, |
| textRect.height); |
| if (baseline >= 0) { |
| baseline += textRect.y; |
| } |
| } |
| else { |
| baseline = textRect.y + fm.getAscent(); |
| } |
| context.dispose(); |
| return baseline; |
| } |
| |
| /** |
| * 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().paintLabelBackground(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) { |
| JLabel label = (JLabel)context.getComponent(); |
| Icon icon = (label.isEnabled()) ? label.getIcon() : |
| label.getDisabledIcon(); |
| |
| g.setColor(context.getStyle().getColor(context, |
| ColorType.TEXT_FOREGROUND)); |
| g.setFont(style.getFont(context)); |
| context.getStyle().getGraphicsUtils(context).paintText( |
| context, g, label.getText(), icon, |
| label.getHorizontalAlignment(), label.getVerticalAlignment(), |
| label.getHorizontalTextPosition(), label.getVerticalTextPosition(), |
| label.getIconTextGap(), label.getDisplayedMnemonicIndex(), 0); |
| } |
| |
| /** |
| * @inheritDoc |
| */ |
| @Override |
| public void paintBorder(SynthContext context, Graphics g, int x, |
| int y, int w, int h) { |
| context.getPainter().paintLabelBorder(context, g, x, y, w, h); |
| } |
| |
| /** |
| * @inheritDoc |
| */ |
| @Override |
| public Dimension getPreferredSize(JComponent c) { |
| JLabel label = (JLabel)c; |
| Icon icon = (label.isEnabled()) ? label.getIcon() : |
| label.getDisabledIcon(); |
| SynthContext context = getContext(c); |
| Dimension size = context.getStyle().getGraphicsUtils(context). |
| getPreferredSize( |
| context, context.getStyle().getFont(context), label.getText(), |
| icon, label.getHorizontalAlignment(), |
| label.getVerticalAlignment(), label.getHorizontalTextPosition(), |
| label.getVerticalTextPosition(), label.getIconTextGap(), |
| label.getDisplayedMnemonicIndex()); |
| |
| context.dispose(); |
| return size; |
| } |
| |
| /** |
| * @inheritDoc |
| */ |
| @Override |
| public Dimension getMinimumSize(JComponent c) { |
| JLabel label = (JLabel)c; |
| Icon icon = (label.isEnabled()) ? label.getIcon() : |
| label.getDisabledIcon(); |
| SynthContext context = getContext(c); |
| Dimension size = context.getStyle().getGraphicsUtils(context). |
| getMinimumSize( |
| context, context.getStyle().getFont(context), label.getText(), |
| icon, label.getHorizontalAlignment(), |
| label.getVerticalAlignment(), label.getHorizontalTextPosition(), |
| label.getVerticalTextPosition(), label.getIconTextGap(), |
| label.getDisplayedMnemonicIndex()); |
| |
| context.dispose(); |
| return size; |
| } |
| |
| /** |
| * @inheritDoc |
| */ |
| @Override |
| public Dimension getMaximumSize(JComponent c) { |
| JLabel label = (JLabel)c; |
| Icon icon = (label.isEnabled()) ? label.getIcon() : |
| label.getDisabledIcon(); |
| SynthContext context = getContext(c); |
| Dimension size = context.getStyle().getGraphicsUtils(context). |
| getMaximumSize( |
| context, context.getStyle().getFont(context), label.getText(), |
| icon, label.getHorizontalAlignment(), |
| label.getVerticalAlignment(), label.getHorizontalTextPosition(), |
| label.getVerticalTextPosition(), label.getIconTextGap(), |
| label.getDisplayedMnemonicIndex()); |
| |
| context.dispose(); |
| return size; |
| } |
| |
| /** |
| * @inheritDoc |
| */ |
| @Override |
| public void propertyChange(PropertyChangeEvent e) { |
| super.propertyChange(e); |
| if (SynthLookAndFeel.shouldUpdateStyle(e)) { |
| updateStyle((JLabel)e.getSource()); |
| } |
| } |
| } |
