/*
* @(#)SynthButtonUI.java 1.20 04/04/16
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package javax.swing.plaf.synth;
import java.awt.*;
import java.awt.event.*;
import java.io.Serializable;
import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
import java.beans.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.BasicButtonUI;
import javax.swing.plaf.basic.BasicHTML;
import javax.swing.text.View;
import sun.swing.plaf.synth.SynthUI;
import sun.swing.plaf.synth.DefaultSynthStyle;
/**
* Synth's ButtonUI implementation.
*
* @version 1.20, 04/16/04
* @author Scott Violet
*/
class SynthButtonUI extends BasicButtonUI implements
PropertyChangeListener, SynthUI {
private SynthStyle style;
public static ComponentUI createUI(JComponent c) {
return new SynthButtonUI();
}
protected void installDefaults(AbstractButton b) {
updateStyle(b);
LookAndFeel.installProperty(b, "rolloverEnabled", Boolean.TRUE);
}
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);
}
}
context.dispose();
}
protected void uninstallListeners(AbstractButton b) {
super.uninstallListeners(b);
b.removePropertyChangeListener(this);
}
protected void uninstallDefaults(AbstractButton b) {
SynthContext context = getContext(b, ENABLED);
style.uninstallDefaults(context);
context.dispose();
style = null;
}
public SynthContext getContext(JComponent c) {
return getContext(c, getComponentState(c));
}
SynthContext getContext(JComponent c, int state) {
Region region = getRegion(c);
return SynthContext.getContext(SynthContext.class, c, region,
style, state);
}
private Region getRegion(JComponent c) {
return SynthLookAndFeel.getRegion(c);
}
/**
* 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.selectedUI == this) {
return SynthLookAndFeel.selectedUIState | SynthConstants.ENABLED;
}
ButtonModel model = ((AbstractButton)c).getModel();
if (model.isPressed()) {
if (model.isArmed()) {
state = PRESSED;
}
else {
state = MOUSE_OVER;
}
}
else if (model.isRollover()) {
state = MOUSE_OVER;
}
if (model.isSelected()) {
state |= SELECTED;
}
if (c.isFocusOwner()) {
state |= FOCUSED;
}
if ((c instanceof JButton) && ((JButton)c).isDefaultButton()) {
state |= DEFAULT;
}
return state;
}
// ********************************
// Paint Methods
// ********************************
public void update(Graphics g, JComponent c) {
SynthContext context = getContext(c);
SynthLookAndFeel.update(context, g);
paintBackground(context, g, c);
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) {
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) {
context.getPainter().paintButtonBackground(context, g, 0, 0,
c.getWidth(), c.getHeight());
}
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 AbstractButton the iocn is associated with
* @return default icon
*/
protected Icon getDefaultIcon(AbstractButton b) {
SynthContext context = getContext(b);
Icon icon = context.getStyle().getIcon(context, getPropertyPrefix() + "icon");
context.dispose();
return icon;
}
/**
* Returns the Icon to use in painting the button.
*/
protected Icon getIcon(AbstractButton b) {
Icon icon = getEnabledIcon(b);
ButtonModel model = b.getModel();
Icon tmpIcon = null;
if (!model.isEnabled()) {
tmpIcon = getSynthDisabledIcon(b);
} else if (model.isPressed() && model.isArmed()) {
tmpIcon = getPressedIcon(b);
} else if (b.isRolloverEnabled() && model.isRollover()) {
tmpIcon = getRolloverIcon(b);
} else if (model.isSelected()) {
tmpIcon = getSelectedIcon(b);
}
if (tmpIcon != null) {
icon = tmpIcon;
}
if(icon == null) {
return getDefaultIcon(b);
}
return icon;
}
private Icon getSynthIcon(AbstractButton b, int synthConstant) {
return style.getIcon(getContext(b, synthConstant), getPropertyPrefix() + "icon");
}
private Icon getEnabledIcon(AbstractButton b) {
Icon tmpIcon = b.getIcon();
if(tmpIcon == null) {
tmpIcon = getSynthIcon(b, SynthConstants.ENABLED);
}
return tmpIcon;
}
private Icon getSelectedIcon(AbstractButton b) {
Icon tmpIcon = b.getSelectedIcon();
if(tmpIcon == null) {
tmpIcon = getSynthIcon(b, SynthConstants.SELECTED);
}
return tmpIcon;
}
private Icon getRolloverIcon(AbstractButton b) {
ButtonModel model = b.getModel();
Icon tmpIcon;
if (model.isSelected()) {
tmpIcon = b.getRolloverSelectedIcon();
if (tmpIcon == null) {
tmpIcon = getSynthIcon(b, SynthConstants.SELECTED);
if (tmpIcon == null) {
tmpIcon = getSelectedIcon(b);
}
}
} else {
tmpIcon = b.getRolloverIcon();
if (tmpIcon == null) {
tmpIcon = getSynthIcon(b, SynthConstants.MOUSE_OVER);
}
}
return tmpIcon;
}
private Icon getPressedIcon(AbstractButton b) {
Icon tmpIcon;
tmpIcon = b.getPressedIcon();
if (tmpIcon == null) {
tmpIcon = getSynthIcon(b, SynthConstants.PRESSED);
if (tmpIcon == null) {
tmpIcon = getSelectedIcon(b);
}
}
return tmpIcon;
}
private Icon getSynthDisabledIcon(AbstractButton b) {
ButtonModel model = b.getModel();
Icon tmpIcon;
if (model.isSelected()) {
tmpIcon = b.getDisabledSelectedIcon();
if(tmpIcon == null) {
tmpIcon = getSynthIcon(b, SynthConstants.DISABLED|SynthConstants.SELECTED);
}
} else {
tmpIcon = b.getDisabledIcon();
if(tmpIcon == null) {
tmpIcon = getSynthIcon(b, SynthConstants.DISABLED);
}
}
return tmpIcon;
}
/**
* Returns the amount to shift the text/icon when painting.
*/
protected 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
// ********************************
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());
ss.dispose();
return size;
}
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());
ss.dispose();
return size;
}
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());
ss.dispose();
return size;
}
/**
* Returns the Icon used in calculating the pref/min/max size.
*/
protected Icon getSizingIcon(AbstractButton b) {
// NOTE: this is slightly different than BasicButtonUI, where it
// would just use getIcon, but this should be ok.
return (b.isEnabled()) ? b.getIcon() : b.getDisabledIcon();
}
public void propertyChange(PropertyChangeEvent e) {
if (SynthLookAndFeel.shouldUpdateStyle(e)) {
updateStyle((AbstractButton)e.getSource());
}
}
}
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