/**
* Paints the thumb for a vertical scroll bar.
*
* @param g the graphics device.
* @param c the scroll bar component.
* @param thumbBounds the thumb bounds.
*/
private void paintThumbVertical(Graphics g, JComponent c, Rectangle thumbBounds) {
int x = thumbBounds.x;
int y = thumbBounds.y;
int w = thumbBounds.width;
int h = thumbBounds.height;
// First we fill the background.
MetalTheme theme = MetalLookAndFeel.getCurrentTheme();
if (theme instanceof OceanTheme && UIManager.get("ScrollBar.gradient") != null) {
MetalUtils.paintGradient(
g, x + 2, y + 2, w - 2, h - 4, SwingConstants.HORIZONTAL, "ScrollBar.gradient");
} else {
g.setColor(thumbColor);
if (isFreeStanding) g.fillRect(x, y, w - 1, h);
else g.fillRect(x, y, w, h);
}
// then draw the dark box
g.setColor(thumbLightShadowColor);
if (isFreeStanding) g.drawRect(x, y, w - 2, h - 1);
else {
g.drawLine(x, y, x + w - 1, y);
g.drawLine(x, y, x, y + h - 1);
g.drawLine(x, y + h - 1, x + w - 1, y + h - 1);
}
// then the highlight
g.setColor(thumbHighlightColor);
if (isFreeStanding) {
g.drawLine(x + 1, y + 1, x + w - 3, y + 1);
g.drawLine(x + 1, y + 1, x + 1, y + h - 3);
} else {
g.drawLine(x + 1, y + 1, x + w - 1, y + 1);
g.drawLine(x + 1, y + 1, x + 1, y + h - 3);
}
// draw the shadow line
g.setColor(UIManager.getColor("ScrollBar.shadow"));
g.drawLine(x + 1, y + h, x + w - 2, y + h);
// For the OceanTheme, draw the 3 lines in the middle.
if (theme instanceof OceanTheme) {
g.setColor(thumbLightShadowColor);
int middle = y + h / 2;
g.drawLine(x + 4, middle - 2, x + w - 5, middle - 2);
g.drawLine(x + 4, middle, x + w - 5, middle);
g.drawLine(x + 4, middle + 2, x + w - 5, middle + 2);
g.setColor(UIManager.getColor("ScrollBar.highlight"));
g.drawLine(x + 5, middle - 1, x + w - 4, middle - 1);
g.drawLine(x + 5, middle + 1, x + w - 4, middle + 1);
g.drawLine(x + 5, middle + 3, x + w - 4, middle + 3);
}
}
/**
* Paints the slider button of the ScrollBar.
*
* @param g the Graphics context to use
* @param c the JComponent on which we paint
* @param thumbBounds the rectangle that is the slider button
*/
protected void paintThumb(Graphics g, JComponent c, Rectangle thumbBounds) {
// a disabled scrollbar has no thumb in the metal look and feel
if (!c.isEnabled()) return;
if (scrollbar.getOrientation() == HORIZONTAL) paintThumbHorizontal(g, c, thumbBounds);
else paintThumbVertical(g, c, thumbBounds);
// Draw the pattern when the theme is not Ocean.
if (!(MetalLookAndFeel.getCurrentTheme() instanceof OceanTheme)) {
MetalUtils.fillMetalPattern(
c,
g,
thumbBounds.x + 3,
thumbBounds.y + 3,
thumbBounds.width - 6,
thumbBounds.height - 6,
thumbHighlightColor,
thumbLightShadowColor);
}
}
/**
* Paints the track along which the thumb control moves.
*
* @param g the graphics device.
*/
public void paintTrack(Graphics g) {
Color shadowColor = MetalLookAndFeel.getControlShadow();
if (slider.getOrientation() == JSlider.HORIZONTAL) {
int trackX = trackRect.x;
int trackY = trackRect.y + (trackRect.height - getTrackWidth()) / 2;
int trackW = trackRect.width;
int trackH = getTrackWidth();
// draw border
if (slider.isEnabled())
BasicGraphicsUtils.drawEtchedRect(
g,
trackX,
trackY,
trackW,
trackH,
darkShadowColor,
shadowColor,
darkShadowColor,
highlightColor);
else {
g.setColor(MetalLookAndFeel.getControlShadow());
g.drawRect(trackX, trackY, trackW - 2, trackH - 2);
}
// fill track (if required)
if (MetalLookAndFeel.getCurrentTheme() instanceof OceanTheme) {
if (slider.isEnabled()) {
int xPos = xPositionForValue(slider.getValue());
int x = slider.getInverted() ? xPos : trackRect.x;
int w = slider.getInverted() ? trackX + trackW - xPos : xPos - trackRect.x;
g.setColor(MetalLookAndFeel.getWhite());
g.drawLine(x + 1, trackY + 1, x + w - 3, trackY + 1);
g.setColor(UIManager.getColor("Slider.altTrackColor"));
g.drawLine(x + 1, trackY + 2, x + w - 3, trackY + 2);
g.setColor(MetalLookAndFeel.getControlShadow());
g.drawLine(x + 1, trackY + 3, x + w - 3, trackY + 3);
g.setColor(MetalLookAndFeel.getPrimaryControlShadow());
g.drawLine(x + 1, trackY + 4, x + w - 3, trackY + 4);
}
} else if (filledSlider) {
int xPos = xPositionForValue(slider.getValue());
int x = slider.getInverted() ? xPos : trackRect.x;
int w = slider.getInverted() ? trackX + trackW - xPos : xPos - trackRect.x;
g.setColor(MetalLookAndFeel.getControlShadow());
g.fillRect(x + 1, trackY + 1, w - 3, getTrackWidth() - 3);
if (slider.isEnabled()) {
g.setColor(MetalLookAndFeel.getControl());
g.drawLine(x + 1, trackY + 1, x + w - 3, trackY + 1);
g.drawLine(x + 1, trackY + 1, x + 1, trackY + getTrackWidth() - 3);
}
}
} else {
int trackX = trackRect.x + (trackRect.width - getTrackWidth()) / 2;
int trackY = trackRect.y;
int trackW = getTrackWidth();
int trackH = trackRect.height;
if (slider.isEnabled())
BasicGraphicsUtils.drawEtchedRect(
g,
trackX,
trackY,
trackW,
trackH,
darkShadowColor,
shadowColor,
darkShadowColor,
highlightColor);
else {
g.setColor(MetalLookAndFeel.getControlShadow());
g.drawRect(trackX, trackY, trackW - 2, trackH - 2);
}
// Fill track if necessary.
if (MetalLookAndFeel.getCurrentTheme() instanceof OceanTheme) {
if (slider.isEnabled()) {
int yPos = yPositionForValue(slider.getValue());
int y = slider.getInverted() ? trackY : yPos;
int h = slider.getInverted() ? yPos - trackY : trackY + trackH - yPos;
g.setColor(MetalLookAndFeel.getWhite());
g.drawLine(trackX + 1, y + 1, trackX + 1, y + h - 3);
g.setColor(UIManager.getColor("Slider.altTrackColor"));
g.drawLine(trackX + 2, y + 1, trackX + 2, y + h - 3);
g.setColor(MetalLookAndFeel.getControlShadow());
g.drawLine(trackX + 3, y + 1, trackX + 3, y + h - 3);
g.setColor(MetalLookAndFeel.getPrimaryControlShadow());
g.drawLine(trackX + 4, y + 1, trackX + 4, y + h - 3);
}
} else if (filledSlider) {
int yPos = yPositionForValue(slider.getValue());
int y = slider.getInverted() ? trackY : yPos;
int h = slider.getInverted() ? yPos - trackY : trackY + trackH - yPos;
g.setColor(MetalLookAndFeel.getControlShadow());
g.fillRect(trackX + 1, y + 1, getTrackWidth() - 3, h - 3);
if (slider.isEnabled()) {
g.setColor(MetalLookAndFeel.getControl());
g.drawLine(trackX + 1, y + 1, trackX + trackW - 3, y + 1);
g.drawLine(trackX + 1, y + 1, trackX + 1, y + h - 3);
}
}
}
}
