package edu.cmu.hcii.whyline.ui.components;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JScrollPane;
import javax.swing.plaf.metal.MetalScrollBarUI;
import javax.swing.plaf.metal.MetalScrollButton;
import edu.cmu.hcii.whyline.ui.UI;
/**
* @author Andrew J. Ko
*
*/
public class WhylineScrollPane extends JScrollPane {
public WhylineScrollPane(Component view) {
this(view, VERTICAL_SCROLLBAR_AS_NEEDED, HORIZONTAL_SCROLLBAR_AS_NEEDED);
}
public WhylineScrollPane(Component view, int vsbPolicy, int hsbPolicy) {
super(view, vsbPolicy, hsbPolicy);
getViewport().setBackground(null);
getViewport().setOpaque(false);
setBorder(null);
setOpaque(true);
getHorizontalScrollBar().setUI(new WhylineScrollBarUI());
getVerticalScrollBar().setUI(new WhylineScrollBarUI());
getHorizontalScrollBar().setBackground(UI.getControlBackColor());
getVerticalScrollBar().setBackground(UI.getControlBackColor());
}
public Color getBackground() {
Component view = getViewport().getView();
if(view == null || !view.isBackgroundSet())
return UI.getControlBackColor();
else
return view.getBackground();
}
public static class WhylineScrollBarUI extends MetalScrollBarUI {
public WhylineScrollBarUI() {}
protected void paintTrack( Graphics g, JComponent c, Rectangle trackBounds ) {
((Graphics2D)g).setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
((Graphics2D)g).setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g.setColor(UI.getControlCenterColor());
g.fillRoundRect(trackBounds.x, trackBounds.y, trackBounds.width, trackBounds.height, UI.getRoundedness(), UI.getRoundedness());
g.setColor(UI.getControlFrontColor());
g.drawRoundRect(trackBounds.x, trackBounds.y, trackBounds.width - 1, trackBounds.height - 1, UI.getRoundedness(), UI.getRoundedness());
}
protected void paintThumb( Graphics g, JComponent c, Rectangle thumbBounds ) {
((Graphics2D)g).setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
((Graphics2D)g).setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g.setColor(UI.getControlFrontColor());
g.fillRoundRect(thumbBounds.x + 2, thumbBounds.y + 2, thumbBounds.width - 4, thumbBounds.height - 4, UI.getRoundedness(), UI.getRoundedness());
}
protected JButton createDecreaseButton( int orientation ) {
decreaseButton = new WhylineScrollButton( orientation, scrollBarWidth, isFreeStanding );
return decreaseButton;
}
protected JButton createIncreaseButton( int orientation ) {
increaseButton = new WhylineScrollButton( orientation, scrollBarWidth, isFreeStanding );
return increaseButton;
}
}
public static class WhylineScrollButton extends MetalScrollButton {
public WhylineScrollButton(int direction, int width, boolean freeStanding) {
super(direction, 1, freeStanding);
setVisible(false);
}
}
}
