awt/X11/XButtonPeer.java

0N/A/*
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0N/A * particular file as subject to the "Classpath" exception as provided
0N/A * by Oracle in the LICENSE file that accompanied this code.
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0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
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0N/A * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
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0N/A * 2 along with this work; if not, write to the Free Software Foundation,
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1472N/A *
1472N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A * questions.
0N/A */
1879N/Apackage sun.awt.X11;
1879N/A
1879N/Aimport java.awt.*;
1879N/Aimport java.awt.peer.*;
1879N/Aimport java.awt.event.MouseEvent;
1879N/Aimport java.awt.event.FocusEvent;
0N/Aimport java.awt.event.KeyEvent;
0N/Aimport java.awt.event.ActionEvent;
0N/Aimport javax.swing.plaf.basic.*;
2062N/Aimport javax.swing.SwingUtilities;
0N/Aimport javax.swing.SwingConstants;
2062N/A
3863N/Apublic class XButtonPeer extends XComponentPeer implements ButtonPeer {
2062N/A
2062N/A    boolean pressed;
0N/A    boolean armed;
0N/A
0N/A    private Insets focusInsets;
0N/A    private Insets borderInsets;
0N/A    private Insets contentAreaInsets;
0N/A
0N/A    private final static String propertyPrefix = "Button" + ".";
0N/A    protected Color focusColor =  SystemColor.windowText;
0N/A
0N/A    private boolean disposed = false;
0N/A
2062N/A    String label;
2062N/A
2062N/A    protected String getPropertyPrefix() {
2062N/A        return propertyPrefix;
3863N/A    }
2062N/A
2062N/A    void preInit(XCreateWindowParams params) {
0N/A        super.preInit(params);
0N/A        borderInsets = new Insets(2,2,2,2);
0N/A        focusInsets = new Insets(0,0,0,0);
0N/A        contentAreaInsets = new Insets(3,3,3,3);
0N/A    }
0N/A
2062N/A
2062N/A    public  XButtonPeer(Button target) {
0N/A        super(target);
2062N/A        pressed = false;
0N/A        armed = false;
0N/A        label = target.getLabel();
0N/A        updateMotifColors(getPeerBackground());
2062N/A    }
0N/A
0N/A    public  void dispose() {
0N/A        synchronized (target)
0N/A        {
0N/A            disposed = true;
0N/A        }
2062N/A        super.dispose();
0N/A    }
0N/A
0N/A    public boolean isFocusable() {
0N/A        return true;
0N/A    }
2062N/A
0N/A    public void  setLabel(java.lang.String label) {
0N/A        this.label = label;
0N/A        repaint();
0N/A    }
0N/A
0N/A    public void paint(Graphics g) {
0N/A        paint(g,target);
0N/A    }
0N/A
0N/A    public void setBackground(Color c) {
2062N/A        updateMotifColors(c);
0N/A        super.setBackground(c);
0N/A    }
0N/A
0N/A    void handleJavaMouseEvent(MouseEvent e) {
0N/A        super.handleJavaMouseEvent(e);
0N/A        int id = e.getID();
0N/A        switch (id) {
0N/A          case MouseEvent.MOUSE_PRESSED:
0N/A              if (XToolkit.isLeftMouseButton(e) ) {
2062N/A                  Button b = (Button) e.getSource();
0N/A
0N/A                  if(b.contains(e.getX(), e.getY())) {
0N/A                      if (!isEnabled()) {
0N/A                          // Disabled buttons ignore all input...
0N/A                          return;
0N/A                      }
2062N/A                      pressed = true;
2062N/A                      armed = true;
0N/A                      repaint();
0N/A                  }
2062N/A              }
0N/A
0N/A              break;
0N/A
0N/A          case MouseEvent.MOUSE_RELEASED:
0N/A              if (XToolkit.isLeftMouseButton(e)) {
0N/A                  if (armed)
0N/A                  {
2062N/A                      action(e.getWhen(),e.getModifiers());
0N/A                  }
0N/A                  pressed = false;
0N/A                  armed = false;
0N/A                  repaint();
0N/A              }
0N/A
0N/A              break;
0N/A
2062N/A          case  MouseEvent.MOUSE_ENTERED:
0N/A              if (pressed)
0N/A                  armed = true;
0N/A//                 repaint();
0N/A
0N/A              break;
0N/A
0N/A          case MouseEvent.MOUSE_EXITED:
0N/A              armed = false;
0N/A//                 repaint();
0N/A
0N/A              break;
0N/A
0N/A        }
0N/A    }
0N/A
0N/A
0N/A    // NOTE: This method is called by privileged threads.
0N/A    //       DO NOT INVOKE CLIENT CODE ON THIS THREAD!
0N/A    public void action(final long when, final int modifiers) {
0N/A        postEvent(new ActionEvent(target, ActionEvent.ACTION_PERFORMED,
0N/A                                  ((Button)target).getActionCommand(),
0N/A                                  when, modifiers));
2062N/A    }
0N/A
0N/A
0N/A    public void focusGained(FocusEvent e) {
0N/A        super.focusGained(e);
0N/A        repaint();
0N/A    }
0N/A
0N/A    public void focusLost(FocusEvent e) {
0N/A        super.focusLost(e);
0N/A        repaint();
0N/A    }
0N/A
3863N/A    void handleJavaKeyEvent(KeyEvent e) {
0N/A        int id = e.getID();
0N/A        switch (id) {
0N/A          case KeyEvent.KEY_PRESSED:
0N/A              if (e.getKeyCode() == KeyEvent.VK_SPACE)
0N/A              {
0N/A                  pressed=true;
0N/A                  armed=true;
0N/A                  repaint();
0N/A                  action(e.getWhen(),e.getModifiers());
0N/A              }
0N/A
0N/A              break;
0N/A
0N/A          case KeyEvent.KEY_RELEASED:
0N/A              if (e.getKeyCode() == KeyEvent.VK_SPACE)
2062N/A              {
0N/A                  pressed = false;
0N/A                  armed = false;
0N/A                  repaint();
0N/A              }
0N/A
0N/A              break;
0N/A
0N/A
0N/A        }
2062N/A    }
0N/A
0N/A    public Dimension getMinimumSize() {
0N/A        FontMetrics fm = getFontMetrics(getPeerFont());
0N/A        if ( label == null ) {
2062N/A            label = "";
0N/A        }
0N/A        return new Dimension(fm.stringWidth(label) + 14,
0N/A                             fm.getHeight() + 8);
0N/A    }
0N/A
0N/A    /**
0N/A     * DEPRECATED
0N/A     */
2062N/A    public Dimension minimumSize() {
0N/A        return getMinimumSize();
0N/A    }
0N/A
0N/A
0N/A    /*
0N/A       This method is called from Toolkit Thread and so it should not call any client code
0N/A
0N/A    */
0N/A    public void paint(Graphics g, Component c)
0N/A    {
0N/A        if (!disposed && (g != null))
0N/A        {
0N/A            Dimension size = getPeerSize();
0N/A
0N/A            g.setColor( getPeerBackground() );   /* erase the existing button remains */
0N/A            g.fillRect(0,0, size.width , size.height);
0N/A            paintBorder(g,borderInsets.left,
0N/A                        borderInsets.top,
0N/A                        size.width-(borderInsets.left+borderInsets.right),
0N/A                        size.height-(borderInsets.top+borderInsets.bottom));
0N/A
0N/A            FontMetrics fm = g.getFontMetrics();
0N/A
0N/A            Rectangle textRect,iconRect,viewRect;
0N/A
0N/A            textRect = new Rectangle();
0N/A            viewRect = new Rectangle();
0N/A            iconRect = new Rectangle();
0N/A
0N/A
0N/A            viewRect.width = size.width - (contentAreaInsets.left+contentAreaInsets.right);
0N/A            viewRect.height = size.height - (contentAreaInsets.top+contentAreaInsets.bottom);
0N/A
0N/A            viewRect.x = contentAreaInsets.left;
0N/A            viewRect.y = contentAreaInsets.right;
0N/A            String llabel = (label != null) ? label : "";
0N/A
0N/A            // layout the text and icon
0N/A            String text = SwingUtilities.layoutCompoundLabel(
0N/A                                                             fm, llabel, null,
0N/A                                                             SwingConstants.CENTER, SwingConstants.CENTER,
0N/A                                                             SwingConstants.CENTER, SwingConstants.CENTER,
0N/A                                                             viewRect, iconRect, textRect, 0);
0N/A
0N/A            Font f = getPeerFont();
0N/A
0N/A            g.setFont(f);
0N/A
0N/A            // perform UI specific press action, e.g. Windows L&F shifts text
0N/A            if (pressed && armed) {
0N/A                paintButtonPressed(g,target);
0N/A            }
0N/A
0N/A            paintText(g, target, textRect, text);
0N/A
0N/A            if (hasFocus()) {
0N/A                // paint UI specific focus
0N/A                paintFocus(g,focusInsets.left,
0N/A                           focusInsets.top,
0N/A                           size.width-(focusInsets.left+focusInsets.right)-1,
0N/A                           size.height-(focusInsets.top+focusInsets.bottom)-1);
0N/A            }
0N/A        }
0N/A        flush();
0N/A    }
0N/A
0N/A    public void paintBorder(Graphics g, int x, int y, int w, int h) {
        drawMotif3DRect(g, x, y, w-1, h-1, pressed);
    }

    public void setFont(Font f) {
        super.setFont(f);
        target.repaint();
    }
    protected void paintFocus(Graphics g, int x, int y, int w, int h){
        g.setColor(focusColor);
        g.drawRect(x,y,w,h);
    }

    protected void paintButtonPressed(Graphics g, Component b) {
        Dimension size = getPeerSize();
        g.setColor(selectColor);
        g.fillRect(contentAreaInsets.left,
                   contentAreaInsets.top,
                   size.width-(contentAreaInsets.left+contentAreaInsets.right),
                   size.height-(contentAreaInsets.top+contentAreaInsets.bottom));

    }
    protected void paintText(Graphics g, Component c, Rectangle textRect, String text) {
        FontMetrics fm = g.getFontMetrics();

        int mnemonicIndex = -1;

        /* Draw the Text */
        if(isEnabled()) {
            /*** paint the text normally */
            g.setColor(getPeerForeground());
            BasicGraphicsUtils.drawStringUnderlineCharAt(g,text,mnemonicIndex , textRect.x , textRect.y + fm.getAscent() );
        }
        else {
            /*** paint the text disabled ***/
            g.setColor(getPeerBackground().brighter());

            BasicGraphicsUtils.drawStringUnderlineCharAt(g,text, mnemonicIndex,
                                                         textRect.x, textRect.y + fm.getAscent());
            g.setColor(c.getBackground().darker());
            BasicGraphicsUtils.drawStringUnderlineCharAt(g,text, mnemonicIndex,
                                                         textRect.x - 1, textRect.y + fm.getAscent() - 1);
        }
    }
}