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535 lines
16 KiB
535 lines
16 KiB
/*
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* Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package javax.swing.plaf.synth;
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import javax.swing.*;
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import java.awt.*;
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import java.beans.*;
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import javax.swing.plaf.*;
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import javax.swing.plaf.basic.BasicButtonUI;
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import javax.swing.plaf.basic.BasicHTML;
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import javax.swing.text.View;
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/**
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* Provides the Synth L&F UI delegate for
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* {@link javax.swing.JButton}.
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*
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* @author Scott Violet
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* @since 1.7
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*/
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public class SynthButtonUI extends BasicButtonUI implements
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PropertyChangeListener, SynthUI {
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private SynthStyle style;
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/**
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* Creates a new UI object for the given component.
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*
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* @param c component to create UI object for
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* @return the UI object
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*/
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public static ComponentUI createUI(JComponent c) {
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return new SynthButtonUI();
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void installDefaults(AbstractButton b) {
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updateStyle(b);
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LookAndFeel.installProperty(b, "rolloverEnabled", Boolean.TRUE);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void installListeners(AbstractButton b) {
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super.installListeners(b);
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b.addPropertyChangeListener(this);
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}
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void updateStyle(AbstractButton b) {
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SynthContext context = getContext(b, SynthConstants.ENABLED);
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SynthStyle oldStyle = style;
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style = SynthLookAndFeel.updateStyle(context, this);
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if (style != oldStyle) {
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if (b.getMargin() == null ||
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(b.getMargin() instanceof UIResource)) {
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Insets margin = (Insets)style.get(context,getPropertyPrefix() +
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"margin");
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if (margin == null) {
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// Some places assume margins are non-null.
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margin = SynthLookAndFeel.EMPTY_UIRESOURCE_INSETS;
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}
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b.setMargin(margin);
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}
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Object value = style.get(context, getPropertyPrefix() + "iconTextGap");
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if (value != null) {
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LookAndFeel.installProperty(b, "iconTextGap", value);
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}
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value = style.get(context, getPropertyPrefix() + "contentAreaFilled");
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LookAndFeel.installProperty(b, "contentAreaFilled",
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value != null? value : Boolean.TRUE);
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if (oldStyle != null) {
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uninstallKeyboardActions(b);
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installKeyboardActions(b);
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}
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}
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context.dispose();
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void uninstallListeners(AbstractButton b) {
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super.uninstallListeners(b);
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b.removePropertyChangeListener(this);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void uninstallDefaults(AbstractButton b) {
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SynthContext context = getContext(b, ENABLED);
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style.uninstallDefaults(context);
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context.dispose();
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style = null;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public SynthContext getContext(JComponent c) {
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return getContext(c, getComponentState(c));
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}
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SynthContext getContext(JComponent c, int state) {
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return SynthContext.getContext(c, style, state);
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}
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/**
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* Returns the current state of the passed in <code>AbstractButton</code>.
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*/
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private int getComponentState(JComponent c) {
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int state = ENABLED;
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if (!c.isEnabled()) {
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state = DISABLED;
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}
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if (SynthLookAndFeel.getSelectedUI() == this) {
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return SynthLookAndFeel.getSelectedUIState() | SynthConstants.ENABLED;
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}
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AbstractButton button = (AbstractButton) c;
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ButtonModel model = button.getModel();
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if (model.isPressed()) {
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if (model.isArmed()) {
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state = PRESSED;
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}
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else {
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state = MOUSE_OVER;
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}
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}
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if (model.isRollover()) {
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state |= MOUSE_OVER;
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}
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if (model.isSelected()) {
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state |= SELECTED;
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}
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if (c.isFocusOwner() && button.isFocusPainted()) {
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state |= FOCUSED;
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}
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if ((c instanceof JButton) && ((JButton)c).isDefaultButton()) {
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state |= DEFAULT;
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}
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return state;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public int getBaseline(JComponent c, int width, int height) {
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if (c == null) {
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throw new NullPointerException("Component must be non-null");
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}
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if (width < 0 || height < 0) {
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throw new IllegalArgumentException(
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"Width and height must be >= 0");
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}
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AbstractButton b = (AbstractButton)c;
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String text = b.getText();
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if (text == null || "".equals(text)) {
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return -1;
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}
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Insets i = b.getInsets();
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Rectangle viewRect = new Rectangle();
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Rectangle textRect = new Rectangle();
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Rectangle iconRect = new Rectangle();
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viewRect.x = i.left;
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viewRect.y = i.top;
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viewRect.width = width - (i.right + viewRect.x);
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viewRect.height = height - (i.bottom + viewRect.y);
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// layout the text and icon
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SynthContext context = getContext(b);
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FontMetrics fm = context.getComponent().getFontMetrics(
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context.getStyle().getFont(context));
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context.getStyle().getGraphicsUtils(context).layoutText(
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context, fm, b.getText(), b.getIcon(),
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b.getHorizontalAlignment(), b.getVerticalAlignment(),
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b.getHorizontalTextPosition(), b.getVerticalTextPosition(),
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viewRect, iconRect, textRect, b.getIconTextGap());
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View view = (View)b.getClientProperty(BasicHTML.propertyKey);
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int baseline;
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if (view != null) {
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baseline = BasicHTML.getHTMLBaseline(view, textRect.width,
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textRect.height);
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if (baseline >= 0) {
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baseline += textRect.y;
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}
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}
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else {
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baseline = textRect.y + fm.getAscent();
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}
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context.dispose();
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return baseline;
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}
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// ********************************
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// Paint Methods
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// ********************************
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/**
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* Notifies this UI delegate to repaint the specified component.
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* This method paints the component background, then calls
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* the {@link #paint(SynthContext,Graphics)} method.
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*
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* <p>In general, this method does not need to be overridden by subclasses.
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* All Look and Feel rendering code should reside in the {@code paint} method.
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*
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* @param g the {@code Graphics} object used for painting
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* @param c the component being painted
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* @see #paint(SynthContext,Graphics)
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*/
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@Override
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public void update(Graphics g, JComponent c) {
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SynthContext context = getContext(c);
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SynthLookAndFeel.update(context, g);
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paintBackground(context, g, c);
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paint(context, g);
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context.dispose();
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}
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/**
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* Paints the specified component according to the Look and Feel.
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* <p>This method is not used by Synth Look and Feel.
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* Painting is handled by the {@link #paint(SynthContext,Graphics)} method.
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*
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* @param g the {@code Graphics} object used for painting
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* @param c the component being painted
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* @see #paint(SynthContext,Graphics)
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*/
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@Override
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public void paint(Graphics g, JComponent c) {
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SynthContext context = getContext(c);
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paint(context, g);
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context.dispose();
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}
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/**
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* Paints the specified component.
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*
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* @param context context for the component being painted
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* @param g the {@code Graphics} object used for painting
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* @see #update(Graphics,JComponent)
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*/
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protected void paint(SynthContext context, Graphics g) {
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AbstractButton b = (AbstractButton)context.getComponent();
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g.setColor(context.getStyle().getColor(context,
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ColorType.TEXT_FOREGROUND));
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g.setFont(style.getFont(context));
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context.getStyle().getGraphicsUtils(context).paintText(
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context, g, b.getText(), getIcon(b),
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b.getHorizontalAlignment(), b.getVerticalAlignment(),
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b.getHorizontalTextPosition(), b.getVerticalTextPosition(),
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b.getIconTextGap(), b.getDisplayedMnemonicIndex(),
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getTextShiftOffset(context));
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}
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void paintBackground(SynthContext context, Graphics g, JComponent c) {
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if (((AbstractButton) c).isContentAreaFilled()) {
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context.getPainter().paintButtonBackground(context, g, 0, 0,
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c.getWidth(),
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c.getHeight());
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void paintBorder(SynthContext context, Graphics g, int x,
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int y, int w, int h) {
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context.getPainter().paintButtonBorder(context, g, x, y, w, h);
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}
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/**
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* Returns the default icon. This should not callback
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* to the JComponent.
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*
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* @param b button the icon is associated with
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* @return default icon
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*/
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protected Icon getDefaultIcon(AbstractButton b) {
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SynthContext context = getContext(b);
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Icon icon = context.getStyle().getIcon(context, getPropertyPrefix() + "icon");
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context.dispose();
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return icon;
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}
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/**
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* Returns the Icon to use for painting the button. The icon is chosen with
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* respect to the current state of the button.
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*
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* @param b button the icon is associated with
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* @return an icon
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*/
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protected Icon getIcon(AbstractButton b) {
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Icon icon = b.getIcon();
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ButtonModel model = b.getModel();
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if (!model.isEnabled()) {
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icon = getSynthDisabledIcon(b, icon);
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} else if (model.isPressed() && model.isArmed()) {
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icon = getPressedIcon(b, getSelectedIcon(b, icon));
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} else if (b.isRolloverEnabled() && model.isRollover()) {
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icon = getRolloverIcon(b, getSelectedIcon(b, icon));
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} else if (model.isSelected()) {
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icon = getSelectedIcon(b, icon);
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} else {
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icon = getEnabledIcon(b, icon);
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}
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if(icon == null) {
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return getDefaultIcon(b);
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}
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return icon;
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}
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/**
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* This method will return the icon that should be used for a button. We
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* only want to use the synth icon defined by the style if the specific
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* icon has not been defined for the button state and the backup icon is a
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* UIResource (we set it, not the developer).
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*
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* @param b button
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* @param specificIcon icon returned from the button for the specific state
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* @param defaultIcon fallback icon
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* @param state the synth state of the button
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*/
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private Icon getIcon(AbstractButton b, Icon specificIcon, Icon defaultIcon,
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int state) {
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Icon icon = specificIcon;
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if (icon == null) {
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if (defaultIcon instanceof UIResource) {
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icon = getSynthIcon(b, state);
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if (icon == null) {
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icon = defaultIcon;
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}
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} else {
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icon = defaultIcon;
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}
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}
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return icon;
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}
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private Icon getSynthIcon(AbstractButton b, int synthConstant) {
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return style.getIcon(getContext(b, synthConstant), getPropertyPrefix() + "icon");
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}
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private Icon getEnabledIcon(AbstractButton b, Icon defaultIcon) {
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if (defaultIcon == null) {
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defaultIcon = getSynthIcon(b, SynthConstants.ENABLED);
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}
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return defaultIcon;
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}
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private Icon getSelectedIcon(AbstractButton b, Icon defaultIcon) {
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return getIcon(b, b.getSelectedIcon(), defaultIcon,
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SynthConstants.SELECTED);
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}
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private Icon getRolloverIcon(AbstractButton b, Icon defaultIcon) {
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ButtonModel model = b.getModel();
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Icon icon;
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if (model.isSelected()) {
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icon = getIcon(b, b.getRolloverSelectedIcon(), defaultIcon,
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SynthConstants.MOUSE_OVER | SynthConstants.SELECTED);
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} else {
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icon = getIcon(b, b.getRolloverIcon(), defaultIcon,
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SynthConstants.MOUSE_OVER);
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}
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return icon;
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}
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private Icon getPressedIcon(AbstractButton b, Icon defaultIcon) {
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return getIcon(b, b.getPressedIcon(), defaultIcon,
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SynthConstants.PRESSED);
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}
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private Icon getSynthDisabledIcon(AbstractButton b, Icon defaultIcon) {
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ButtonModel model = b.getModel();
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Icon icon;
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if (model.isSelected()) {
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icon = getIcon(b, b.getDisabledSelectedIcon(), defaultIcon,
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SynthConstants.DISABLED | SynthConstants.SELECTED);
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} else {
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icon = getIcon(b, b.getDisabledIcon(), defaultIcon,
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SynthConstants.DISABLED);
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}
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return icon;
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}
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/**
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* Returns the amount to shift the text/icon when painting.
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*/
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private int getTextShiftOffset(SynthContext state) {
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AbstractButton button = (AbstractButton)state.getComponent();
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ButtonModel model = button.getModel();
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if (model.isArmed() && model.isPressed() &&
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button.getPressedIcon() == null) {
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return state.getStyle().getInt(state, getPropertyPrefix() +
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"textShiftOffset", 0);
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}
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return 0;
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}
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// ********************************
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// Layout Methods
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// ********************************
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/**
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* {@inheritDoc}
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*/
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@Override
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public Dimension getMinimumSize(JComponent c) {
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if (c.getComponentCount() > 0 && c.getLayout() != null) {
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return null;
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}
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AbstractButton b = (AbstractButton)c;
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SynthContext ss = getContext(c);
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Dimension size = ss.getStyle().getGraphicsUtils(ss).getMinimumSize(
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ss, ss.getStyle().getFont(ss), b.getText(), getSizingIcon(b),
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b.getHorizontalAlignment(), b.getVerticalAlignment(),
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b.getHorizontalTextPosition(),
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b.getVerticalTextPosition(), b.getIconTextGap(),
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b.getDisplayedMnemonicIndex());
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ss.dispose();
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return size;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public Dimension getPreferredSize(JComponent c) {
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if (c.getComponentCount() > 0 && c.getLayout() != null) {
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return null;
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}
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AbstractButton b = (AbstractButton)c;
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SynthContext ss = getContext(c);
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Dimension size = ss.getStyle().getGraphicsUtils(ss).getPreferredSize(
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ss, ss.getStyle().getFont(ss), b.getText(), getSizingIcon(b),
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b.getHorizontalAlignment(), b.getVerticalAlignment(),
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b.getHorizontalTextPosition(),
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b.getVerticalTextPosition(), b.getIconTextGap(),
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b.getDisplayedMnemonicIndex());
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ss.dispose();
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return size;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public Dimension getMaximumSize(JComponent c) {
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if (c.getComponentCount() > 0 && c.getLayout() != null) {
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return null;
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}
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AbstractButton b = (AbstractButton)c;
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SynthContext ss = getContext(c);
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Dimension size = ss.getStyle().getGraphicsUtils(ss).getMaximumSize(
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ss, ss.getStyle().getFont(ss), b.getText(), getSizingIcon(b),
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b.getHorizontalAlignment(), b.getVerticalAlignment(),
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b.getHorizontalTextPosition(),
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b.getVerticalTextPosition(), b.getIconTextGap(),
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b.getDisplayedMnemonicIndex());
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ss.dispose();
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return size;
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}
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/**
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* Returns the Icon used in calculating the
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* preferred/minimum/maximum size.
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*/
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protected Icon getSizingIcon(AbstractButton b) {
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Icon icon = getEnabledIcon(b, b.getIcon());
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if (icon == null) {
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icon = getDefaultIcon(b);
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}
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return icon;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void propertyChange(PropertyChangeEvent e) {
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if (SynthLookAndFeel.shouldUpdateStyle(e)) {
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updateStyle((AbstractButton)e.getSource());
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}
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}
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}
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