| /* | |
| * Copyright (c) 2002, 2019, 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 sun.awt.AppContext; | |
| import javax.swing.*; | |
| import java.awt.*; | |
| import java.beans.*; | |
| import javax.swing.plaf.*; | |
| import javax.swing.plaf.basic.BasicButtonUI; | |
| import javax.swing.plaf.basic.BasicHTML; | |
| import javax.swing.text.View; | |
| /** | |
| * Provides the Synth L&F UI delegate for | |
| * {@link javax.swing.JButton}. | |
| * | |
| * @author Scott Violet | |
| * @since 1.7 | |
| */ | |
| public class SynthButtonUI extends BasicButtonUI implements | |
| PropertyChangeListener, SynthUI { | |
| private SynthStyle style; | |
| /** | |
| * Constructs a {@code SynthButtonUI}. | |
| */ | |
| public SynthButtonUI() {} | |
| /** | |
| * Creates a new UI object for the given component. | |
| * | |
| * @param c component to create UI object for | |
| * @return the UI object | |
| */ | |
| public static ComponentUI createUI(JComponent c) { | |
| return new SynthButtonUI(); | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected void installDefaults(AbstractButton b) { | |
| updateStyle(b); | |
| LookAndFeel.installProperty(b, "rolloverEnabled", Boolean.TRUE); | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected void installListeners(AbstractButton b) { | |
| super.installListeners(b); | |
| b.addPropertyChangeListener(this); | |
| } | |
| void updateStyle(AbstractButton b) { | |
| SynthContext context = getContext(b, SynthConstants.ENABLED); | |
| SynthStyle oldStyle = style; | |
| style = SynthLookAndFeel.updateStyle(context, this); | |
| if (style != oldStyle) { | |
| if (b.getMargin() == null || | |
| (b.getMargin() instanceof UIResource)) { | |
| Insets margin = (Insets)style.get(context,getPropertyPrefix() + | |
| "margin"); | |
| if (margin == null) { | |
| // Some places assume margins are non-null. | |
| margin = SynthLookAndFeel.EMPTY_UIRESOURCE_INSETS; | |
| } | |
| b.setMargin(margin); | |
| } | |
| Object value = style.get(context, getPropertyPrefix() + "iconTextGap"); | |
| if (value != null) { | |
| LookAndFeel.installProperty(b, "iconTextGap", value); | |
| } | |
| value = style.get(context, getPropertyPrefix() + "contentAreaFilled"); | |
| LookAndFeel.installProperty(b, "contentAreaFilled", | |
| value != null? value : Boolean.TRUE); | |
| if (oldStyle != null) { | |
| uninstallKeyboardActions(b); | |
| installKeyboardActions(b); | |
| } | |
| } | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected void uninstallListeners(AbstractButton b) { | |
| super.uninstallListeners(b); | |
| b.removePropertyChangeListener(this); | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected void uninstallDefaults(AbstractButton b) { | |
| SynthContext context = getContext(b, ENABLED); | |
| style.uninstallDefaults(context); | |
| style = null; | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| public SynthContext getContext(JComponent c) { | |
| return getContext(c, getComponentState(c)); | |
| } | |
| SynthContext getContext(JComponent c, int state) { | |
| return SynthContext.getContext(c, style, state); | |
| } | |
| /** | |
| * Returns the current state of the passed in <code>AbstractButton</code>. | |
| */ | |
| private int getComponentState(JComponent c) { | |
| int state = ENABLED; | |
| if (!c.isEnabled()) { | |
| state = DISABLED; | |
| } | |
| if (SynthLookAndFeel.getSelectedUI() == this) { | |
| return SynthLookAndFeel.getSelectedUIState() | SynthConstants.ENABLED; | |
| } | |
| AbstractButton button = (AbstractButton) c; | |
| ButtonModel model = button.getModel(); | |
| if (model.isPressed()) { | |
| if (model.isArmed()) { | |
| state = PRESSED; | |
| } | |
| else { | |
| state = MOUSE_OVER; | |
| } | |
| } | |
| if (model.isRollover()) { | |
| state |= MOUSE_OVER; | |
| } | |
| if (model.isSelected()) { | |
| state |= SELECTED; | |
| } | |
| if (c.isFocusOwner() && button.isFocusPainted()) { | |
| state |= FOCUSED; | |
| } | |
| if ((c instanceof JButton) && ((JButton)c).isDefaultButton()) { | |
| state |= DEFAULT; | |
| } | |
| 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"); | |
| } | |
| AbstractButton b = (AbstractButton)c; | |
| String text = b.getText(); | |
| if (text == null || text.isEmpty()) { | |
| return -1; | |
| } | |
| Insets i = b.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(b); | |
| SynthStyle style; | |
| if (context.getStyle() != null) { | |
| style = context.getStyle(); | |
| } else { | |
| style = SynthLookAndFeel.updateStyle(context, this); | |
| } | |
| FontMetrics fm = context.getComponent().getFontMetrics( | |
| style.getFont(context)); | |
| style.getGraphicsUtils(context).layoutText( | |
| context, fm, b.getText(), b.getIcon(), | |
| b.getHorizontalAlignment(), b.getVerticalAlignment(), | |
| b.getHorizontalTextPosition(), b.getVerticalTextPosition(), | |
| viewRect, iconRect, textRect, b.getIconTextGap()); | |
| View view = (View)b.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(); | |
| } | |
| return baseline; | |
| } | |
| // ******************************** | |
| // Paint Methods | |
| // ******************************** | |
| /** | |
| * 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); | |
| paintBackground(context, g, c); | |
| 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. | |
| * | |
| * @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) { | |
| AbstractButton b = (AbstractButton)context.getComponent(); | |
| g.setColor(context.getStyle().getColor(context, | |
| ColorType.TEXT_FOREGROUND)); | |
| g.setFont(style.getFont(context)); | |
| context.getStyle().getGraphicsUtils(context).paintText( | |
| context, g, b.getText(), getIcon(b), | |
| b.getHorizontalAlignment(), b.getVerticalAlignment(), | |
| b.getHorizontalTextPosition(), b.getVerticalTextPosition(), | |
| b.getIconTextGap(), b.getDisplayedMnemonicIndex(), | |
| getTextShiftOffset(context)); | |
| } | |
| void paintBackground(SynthContext context, Graphics g, JComponent c) { | |
| if (((AbstractButton) c).isContentAreaFilled()) { | |
| context.getPainter().paintButtonBackground(context, g, 0, 0, | |
| c.getWidth(), | |
| c.getHeight()); | |
| } | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| public void paintBorder(SynthContext context, Graphics g, int x, | |
| int y, int w, int h) { | |
| context.getPainter().paintButtonBorder(context, g, x, y, w, h); | |
| } | |
| /** | |
| * Returns the default icon. This should not callback | |
| * to the JComponent. | |
| * | |
| * @param b button the icon is associated with | |
| * @return default icon | |
| */ | |
| protected Icon getDefaultIcon(AbstractButton b) { | |
| SynthContext context = getContext(b); | |
| Icon icon = context.getStyle().getIcon(context, getPropertyPrefix() + "icon"); | |
| return icon; | |
| } | |
| /** | |
| * Returns the Icon to use for painting the button. The icon is chosen with | |
| * respect to the current state of the button. | |
| * | |
| * @param b button the icon is associated with | |
| * @return an icon | |
| */ | |
| protected Icon getIcon(AbstractButton b) { | |
| Icon icon = b.getIcon(); | |
| ButtonModel model = b.getModel(); | |
| if (!model.isEnabled()) { | |
| icon = getSynthDisabledIcon(b, icon); | |
| } else if (model.isPressed() && model.isArmed()) { | |
| icon = getPressedIcon(b, getSelectedIcon(b, icon)); | |
| } else if (b.isRolloverEnabled() && model.isRollover()) { | |
| icon = getRolloverIcon(b, getSelectedIcon(b, icon)); | |
| } else if (model.isSelected()) { | |
| icon = getSelectedIcon(b, icon); | |
| } else { | |
| icon = getEnabledIcon(b, icon); | |
| } | |
| if(icon == null) { | |
| return getDefaultIcon(b); | |
| } | |
| return icon; | |
| } | |
| /** | |
| * This method will return the icon that should be used for a button. We | |
| * only want to use the synth icon defined by the style if the specific | |
| * icon has not been defined for the button state and the backup icon is a | |
| * UIResource (we set it, not the developer) or {@code null}. | |
| * | |
| * @param b button | |
| * @param specificIcon icon returned from the button for the specific state | |
| * @param defaultIcon fallback icon | |
| * @param state the synth state of the button | |
| */ | |
| private Icon getIcon(AbstractButton b, Icon specificIcon, Icon defaultIcon, | |
| int state) { | |
| Icon icon = specificIcon; | |
| if (icon == null) { | |
| if (defaultIcon == null || defaultIcon instanceof UIResource) { | |
| icon = getSynthIcon(b, state); | |
| if (icon == null) { | |
| icon = defaultIcon; | |
| } | |
| } else { | |
| icon = defaultIcon; | |
| } | |
| } | |
| return icon; | |
| } | |
| private Icon getSynthIcon(AbstractButton b, int synthConstant) { | |
| return style.getIcon(getContext(b, synthConstant), getPropertyPrefix() + "icon"); | |
| } | |
| private Icon getEnabledIcon(AbstractButton b, Icon defaultIcon) { | |
| if (defaultIcon == null) { | |
| defaultIcon = getSynthIcon(b, SynthConstants.ENABLED); | |
| } | |
| return defaultIcon; | |
| } | |
| private Icon getSelectedIcon(AbstractButton b, Icon defaultIcon) { | |
| return getIcon(b, b.getSelectedIcon(), defaultIcon, | |
| SynthConstants.SELECTED); | |
| } | |
| private Icon getRolloverIcon(AbstractButton b, Icon defaultIcon) { | |
| return getSpecificIcon(b, b.getRolloverSelectedIcon(), b.getRolloverIcon(), | |
| defaultIcon, SynthConstants.MOUSE_OVER); | |
| } | |
| private Icon getPressedIcon(AbstractButton b, Icon defaultIcon) { | |
| return getIcon(b, b.getPressedIcon(), defaultIcon, | |
| SynthConstants.PRESSED); | |
| } | |
| private Icon getSynthDisabledIcon(AbstractButton b, Icon defaultIcon) { | |
| return getSpecificIcon(b, b.getDisabledSelectedIcon(), b.getDisabledIcon(), | |
| defaultIcon, SynthConstants.DISABLED); | |
| } | |
| private Icon getSpecificIcon(AbstractButton b, Icon specificSelectedIcon, | |
| Icon specificIcon, Icon defaultIcon, | |
| int state) { | |
| boolean selected = b.getModel().isSelected(); | |
| Icon icon = null; | |
| if (selected) { | |
| icon = specificSelectedIcon; | |
| if (icon == null) { | |
| icon = b.getSelectedIcon(); | |
| } | |
| } | |
| if (icon == null) { | |
| icon = specificIcon; | |
| } | |
| if (icon != null) { | |
| return icon; | |
| } | |
| if (defaultIcon == null || defaultIcon instanceof UIResource) { | |
| if (selected) { | |
| icon = getSynthIcon(b, state | SynthConstants.SELECTED); | |
| if (icon == null) { | |
| icon = getSynthIcon(b, SynthConstants.SELECTED); | |
| } | |
| } | |
| if (icon == null) { | |
| icon = getSynthIcon(b, state); | |
| } | |
| } | |
| return icon != null ? icon : defaultIcon; | |
| } | |
| /** | |
| * Returns the amount to shift the text/icon when painting. | |
| */ | |
| private int getTextShiftOffset(SynthContext state) { | |
| AbstractButton button = (AbstractButton)state.getComponent(); | |
| ButtonModel model = button.getModel(); | |
| if (model.isArmed() && model.isPressed() && | |
| button.getPressedIcon() == null) { | |
| return state.getStyle().getInt(state, getPropertyPrefix() + | |
| "textShiftOffset", 0); | |
| } | |
| return 0; | |
| } | |
| // ******************************** | |
| // Layout Methods | |
| // ******************************** | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| public Dimension getMinimumSize(JComponent c) { | |
| if (c.getComponentCount() > 0 && c.getLayout() != null) { | |
| return null; | |
| } | |
| AbstractButton b = (AbstractButton)c; | |
| SynthContext ss = getContext(c); | |
| Dimension size = ss.getStyle().getGraphicsUtils(ss).getMinimumSize( | |
| ss, ss.getStyle().getFont(ss), b.getText(), getSizingIcon(b), | |
| b.getHorizontalAlignment(), b.getVerticalAlignment(), | |
| b.getHorizontalTextPosition(), | |
| b.getVerticalTextPosition(), b.getIconTextGap(), | |
| b.getDisplayedMnemonicIndex()); | |
| return size; | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| public Dimension getPreferredSize(JComponent c) { | |
| if (c.getComponentCount() > 0 && c.getLayout() != null) { | |
| return null; | |
| } | |
| AbstractButton b = (AbstractButton)c; | |
| SynthContext ss = getContext(c); | |
| Dimension size = ss.getStyle().getGraphicsUtils(ss).getPreferredSize( | |
| ss, ss.getStyle().getFont(ss), b.getText(), getSizingIcon(b), | |
| b.getHorizontalAlignment(), b.getVerticalAlignment(), | |
| b.getHorizontalTextPosition(), | |
| b.getVerticalTextPosition(), b.getIconTextGap(), | |
| b.getDisplayedMnemonicIndex()); | |
| return size; | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| public Dimension getMaximumSize(JComponent c) { | |
| if (c.getComponentCount() > 0 && c.getLayout() != null) { | |
| return null; | |
| } | |
| AbstractButton b = (AbstractButton)c; | |
| SynthContext ss = getContext(c); | |
| Dimension size = ss.getStyle().getGraphicsUtils(ss).getMaximumSize( | |
| ss, ss.getStyle().getFont(ss), b.getText(), getSizingIcon(b), | |
| b.getHorizontalAlignment(), b.getVerticalAlignment(), | |
| b.getHorizontalTextPosition(), | |
| b.getVerticalTextPosition(), b.getIconTextGap(), | |
| b.getDisplayedMnemonicIndex()); | |
| return size; | |
| } | |
| /** | |
| * Returns the Icon used in calculating the | |
| * preferred/minimum/maximum size. | |
| * | |
| * @param b specifies the {@code AbstractButton} | |
| * used when calculating the preferred/minimum/maximum | |
| * size. | |
| * | |
| * @return the Icon used in calculating the | |
| * preferred/minimum/maximum size. | |
| */ | |
| protected Icon getSizingIcon(AbstractButton b) { | |
| Icon icon = getEnabledIcon(b, b.getIcon()); | |
| if (icon == null) { | |
| icon = getDefaultIcon(b); | |
| } | |
| return icon; | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| public void propertyChange(PropertyChangeEvent e) { | |
| if (SynthLookAndFeel.shouldUpdateStyle(e)) { | |
| updateStyle((AbstractButton)e.getSource()); | |
| } | |
| } | |
| } |