FileDocCategorySizeDatePackage
SynthButtonUI.javaAPI DocJava SE 5 API12637Fri Aug 26 14:58:12 BST 2005javax.swing.plaf.synth

SynthButtonUI

public class SynthButtonUI extends BasicButtonUI implements sun.swing.plaf.synth.SynthUI, PropertyChangeListener
Synth's ButtonUI implementation.
version
1.20, 04/16/04
author
Scott Violet

Fields Summary
private SynthStyle
style
Constructors Summary
Methods Summary
public static javax.swing.plaf.ComponentUIcreateUI(javax.swing.JComponent c)

        return new SynthButtonUI();
    
private intgetComponentState(javax.swing.JComponent c)
Returns the current state of the passed in AbstractButton.

        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;
    
public javax.swing.plaf.synth.SynthContextgetContext(javax.swing.JComponent c)

        return getContext(c, getComponentState(c));
    
javax.swing.plaf.synth.SynthContextgetContext(javax.swing.JComponent c, int state)

        Region region = getRegion(c);
        return SynthContext.getContext(SynthContext.class, c, region,
                                       style, state);
    
protected javax.swing.IcongetDefaultIcon(javax.swing.AbstractButton b)
Returns the default icon. This should NOT callback to the JComponent.

param
b AbstractButton the iocn is associated with
return
default icon

        SynthContext context = getContext(b);
        Icon icon = context.getStyle().getIcon(context, getPropertyPrefix() + "icon");
        context.dispose();
        return icon;
    
private javax.swing.IcongetEnabledIcon(javax.swing.AbstractButton b)

        Icon tmpIcon = b.getIcon();
        if(tmpIcon == null) {
            tmpIcon = getSynthIcon(b, SynthConstants.ENABLED); 
        }
        return tmpIcon;
    
protected javax.swing.IcongetIcon(javax.swing.AbstractButton b)
Returns the Icon to use in painting the button.

        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;
    
public java.awt.DimensiongetMaximumSize(javax.swing.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;
    
public java.awt.DimensiongetMinimumSize(javax.swing.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 java.awt.DimensiongetPreferredSize(javax.swing.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;
    
private javax.swing.IcongetPressedIcon(javax.swing.AbstractButton b)

        Icon tmpIcon;
        tmpIcon = b.getPressedIcon();
        if (tmpIcon == null) {
            tmpIcon = getSynthIcon(b, SynthConstants.PRESSED);
            if (tmpIcon == null) {
              tmpIcon = getSelectedIcon(b);
            }
        }
        return tmpIcon;
    
private javax.swing.plaf.synth.RegiongetRegion(javax.swing.JComponent c)

        return SynthLookAndFeel.getRegion(c);
    
private javax.swing.IcongetRolloverIcon(javax.swing.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 javax.swing.IcongetSelectedIcon(javax.swing.AbstractButton b)

        Icon tmpIcon = b.getSelectedIcon();
        if(tmpIcon == null) {
            tmpIcon = getSynthIcon(b, SynthConstants.SELECTED);
        }
        return tmpIcon;
    
protected javax.swing.IcongetSizingIcon(javax.swing.AbstractButton b)
Returns the Icon used in calculating the pref/min/max size.

        // 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();
    
private javax.swing.IcongetSynthDisabledIcon(javax.swing.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;
    
private javax.swing.IcongetSynthIcon(javax.swing.AbstractButton b, int synthConstant)

        return style.getIcon(getContext(b, synthConstant), getPropertyPrefix() + "icon");
    
protected intgetTextShiftOffset(javax.swing.plaf.synth.SynthContext state)
Returns the amount to shift the text/icon when painting.

        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;
    
protected voidinstallDefaults(javax.swing.AbstractButton b)

        updateStyle(b);

        LookAndFeel.installProperty(b, "rolloverEnabled", Boolean.TRUE);
    
protected voidinstallListeners(javax.swing.AbstractButton b)

        super.installListeners(b);
        b.addPropertyChangeListener(this);
    
public voidpaint(java.awt.Graphics g, javax.swing.JComponent c)

        SynthContext context = getContext(c);

        paint(context, g);
        context.dispose();
    
protected voidpaint(javax.swing.plaf.synth.SynthContext context, java.awt.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));
    
voidpaintBackground(javax.swing.plaf.synth.SynthContext context, java.awt.Graphics g, javax.swing.JComponent c)

        context.getPainter().paintButtonBackground(context, g, 0, 0,
                                                c.getWidth(), c.getHeight());
    
public voidpaintBorder(javax.swing.plaf.synth.SynthContext context, java.awt.Graphics g, int x, int y, int w, int h)

        context.getPainter().paintButtonBorder(context, g, x, y, w, h);
    
public voidpropertyChange(java.beans.PropertyChangeEvent e)

        if (SynthLookAndFeel.shouldUpdateStyle(e)) {
            updateStyle((AbstractButton)e.getSource());
        }
    
protected voiduninstallDefaults(javax.swing.AbstractButton b)

        SynthContext context = getContext(b, ENABLED);

        style.uninstallDefaults(context);
        context.dispose();
        style = null;
    
protected voiduninstallListeners(javax.swing.AbstractButton b)

        super.uninstallListeners(b);
        b.removePropertyChangeListener(this);
    
public voidupdate(java.awt.Graphics g, javax.swing.JComponent c)

        SynthContext context = getContext(c);

        SynthLookAndFeel.update(context, g);
        paintBackground(context, g, c);
        paint(context, g);
        context.dispose();
    
voidupdateStyle(javax.swing.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();