| Methods Summary |
|---|
| protected void | calculateGeometry()
layout();
calculateThumbLocation();
|
| protected void | calculateThumbLocation()
if (slider.getSnapToTicks()) {
int sliderValue = slider.getValue();
int snappedValue = sliderValue;
int majorTickSpacing = slider.getMajorTickSpacing();
int minorTickSpacing = slider.getMinorTickSpacing();
int tickSpacing = 0;
if (minorTickSpacing > 0) {
tickSpacing = minorTickSpacing;
} else if (majorTickSpacing > 0) {
tickSpacing = majorTickSpacing;
}
if (tickSpacing != 0) {
// If it's not on a tick, change the value
if ((sliderValue - slider.getMinimum()) % tickSpacing != 0) {
float temp = (float)(sliderValue - slider.getMinimum())
/ (float)tickSpacing;
int whichTick = Math.round( temp );
snappedValue =
slider.getMinimum() + (whichTick * tickSpacing);
}
if (snappedValue != sliderValue) {
slider.setValue(snappedValue);
}
}
}
if (slider.getOrientation() == JSlider.HORIZONTAL) {
int valuePosition = xPositionForValue(slider.getValue());
thumbRect.x = valuePosition - (thumbRect.width / 2);
thumbRect.y = trackRect.y + trackBorder;
} else {
int valuePosition = yPositionForValue(slider.getValue());
thumbRect.x = trackRect.x + trackBorder;
thumbRect.y = valuePosition - (thumbRect.height / 2);
}
Point mousePosition = slider.getMousePosition();
if(mousePosition != null) {
updateThumbState(mousePosition.x, mousePosition.y);
}
|
| protected void | calculateTickRect()
if (slider.getOrientation() == JSlider.HORIZONTAL) {
tickRect.x = trackRect.x;
tickRect.y = trackRect.y + trackRect.height + 2 + getTickLength();
tickRect.width = trackRect.width;
tickRect.height = getTickLength();
if (!slider.getPaintTicks()) {
--tickRect.y;
tickRect.height = 0;
}
} else {
if (SynthLookAndFeel.isLeftToRight(slider)) {
tickRect.x = trackRect.x + trackRect.width;
tickRect.width = getTickLength();
} else {
tickRect.width = getTickLength();
tickRect.x = trackRect.x - tickRect.width;
}
tickRect.y = trackRect.y;
tickRect.height = trackRect.height;
if (!slider.getPaintTicks()) {
--tickRect.x;
tickRect.width = 0;
}
}
|
| protected TrackListener | createTrackListener(javax.swing.JSlider s)
return new SynthTrackListener();
|
| public static javax.swing.plaf.ComponentUI | createUI(javax.swing.JComponent c)
///////////////////////////////////////////////////
// ComponentUI Interface Implementation methods
///////////////////////////////////////////////////
return new SynthSliderUI((JSlider)c);
|
| public int | getBaseline(javax.swing.JComponent c, int width, int height)
if (c == null) {
throw new NullPointerException("Component must be non-null");
}
if (width < 0 || height < 0) {
throw new IllegalArgumentException(
"Width and height must be >= 0");
}
if (slider.getPaintLabels() && labelsHaveSameBaselines()) {
// Get the insets for the track.
Insets trackInsets = new Insets(0, 0, 0, 0);
SynthContext trackContext = getContext(slider,
Region.SLIDER_TRACK);
style.getInsets(trackContext, trackInsets);
trackContext.dispose();
if (slider.getOrientation() == JSlider.HORIZONTAL) {
int valueHeight = 0;
if (paintValue) {
SynthContext context = getContext(slider);
valueHeight = context.getStyle().getGraphicsUtils(context).
getMaximumCharHeight(context);
context.dispose();
}
int tickHeight = 0;
if (slider.getPaintTicks()) {
tickHeight = getTickLength();
}
int labelHeight = getHeightOfTallestLabel();
int contentHeight = valueHeight + trackHeight +
trackInsets.top + trackInsets.bottom +
tickHeight + labelHeight + 4;
int centerY = height / 2 - contentHeight / 2;
centerY += valueHeight + 2;
centerY += trackHeight + trackInsets.top + trackInsets.bottom;
centerY += tickHeight + 2;
Component label = (Component)slider.getLabelTable().
elements().nextElement();
Dimension pref = label.getPreferredSize();
return centerY + label.getBaseline(pref.width, pref.height);
}
else { // VERTICAL
Integer value = slider.getInverted() ? getLowestValue() :
getHighestValue();
if (value != null) {
int valueY = insetCache.top;
int valueHeight = 0;
if (paintValue) {
SynthContext context = getContext(slider);
valueHeight = context.getStyle().getGraphicsUtils(
context).getMaximumCharHeight(context);
context.dispose();
}
int contentHeight = height - insetCache.top -
insetCache.bottom;
int trackY = valueY + valueHeight;
int trackHeight = contentHeight - valueHeight;
int yPosition = yPositionForValue(value.intValue(), trackY,
trackHeight);
Component label = (Component)slider.getLabelTable().
get(value);
Dimension pref = label.getPreferredSize();
return yPosition - pref.height / 2 +
label.getBaseline(pref.width, pref.height);
}
}
}
return -1;
|
| public int | getComponentState(javax.swing.JComponent c)
return SynthLookAndFeel.getComponentState(c);
|
| private int | getComponentState(javax.swing.JComponent c, javax.swing.plaf.synth.Region region)
if (region == Region.SLIDER_THUMB && thumbActive &&c.isEnabled()) {
return MOUSE_OVER;
}
return SynthLookAndFeel.getComponentState(c);
|
| public javax.swing.plaf.synth.SynthContext | getContext(javax.swing.JComponent c)
return getContext(c, getComponentState(c));
|
| public javax.swing.plaf.synth.SynthContext | getContext(javax.swing.JComponent c, int state)
return SynthContext.getContext(SynthContext.class, c,
SynthLookAndFeel.getRegion(c), style, state);
|
| public javax.swing.plaf.synth.SynthContext | getContext(javax.swing.JComponent c, javax.swing.plaf.synth.Region subregion)
return getContext(c, subregion, getComponentState(c, subregion));
|
| private javax.swing.plaf.synth.SynthContext | getContext(javax.swing.JComponent c, javax.swing.plaf.synth.Region subregion, int state)
SynthStyle style = null;
Class klass = SynthContext.class;
if (subregion == Region.SLIDER_TRACK) {
style = sliderTrackStyle;
} else if (subregion == Region.SLIDER_THUMB) {
style = sliderThumbStyle;
}
return SynthContext.getContext(klass, c, subregion, style, state);
|
| public java.awt.Dimension | getMinimumSize(javax.swing.JComponent c)
recalculateIfInsetsChanged();
Dimension d = new Dimension(contentDim);
if (slider.getOrientation() == JSlider.VERTICAL) {
d.height = thumbRect.height + insetCache.top + insetCache.bottom;
} else {
d.width = thumbRect.width + insetCache.left + insetCache.right;
}
return d;
|
| private int | getPadForLabel(int i)Calculates the pad for the label at the specified index.
Dictionary dictionary = slider.getLabelTable();
int pad = 0;
Object o = dictionary.get(i);
if (o != null) {
Component c = (Component)o;
int centerX = xPositionForValue(i);
int cHalfWidth = c.getPreferredSize().width / 2;
if (centerX - cHalfWidth < insetCache.left) {
pad = Math.max(pad, insetCache.left - (centerX - cHalfWidth));
}
if (centerX + cHalfWidth > slider.getWidth() - insetCache.right) {
pad = Math.max(pad, (centerX + cHalfWidth) -
(slider.getWidth() - insetCache.right));
}
}
return pad;
|
| public java.awt.Dimension | getPreferredSize(javax.swing.JComponent c)
recalculateIfInsetsChanged();
Dimension d = new Dimension(contentDim);
if (slider.getOrientation() == JSlider.VERTICAL) {
d.height = 200;
} else {
d.width = 200;
}
return d;
|
| public javax.swing.plaf.synth.Region | getRegion(javax.swing.JComponent c)
return SynthLookAndFeel.getRegion(c);
|
| protected java.awt.Dimension | getThumbSize()
Dimension size = new Dimension();
if (slider.getOrientation() == JSlider.VERTICAL) {
size.width = thumbHeight;
size.height = thumbWidth;
} else {
size.width = thumbWidth;
size.height = thumbHeight;
}
return size;
|
| protected void | installDefaults(javax.swing.JSlider slider)
updateStyle(slider);
|
| protected void | installListeners(javax.swing.JSlider slider)
super.installListeners(slider);
slider.addPropertyChangeListener(this);
|
| protected void | layout()
SynthContext context = getContext(slider);
SynthGraphicsUtils synthGraphics = style.getGraphicsUtils(context);
// Set the thumb size.
Dimension size = getThumbSize();
thumbRect.setSize(size.width, size.height);
// Get the insets for the track.
Insets trackInsets = new Insets(0, 0, 0, 0);
SynthContext trackContext = getContext(slider, Region.SLIDER_TRACK);
style.getInsets(trackContext, trackInsets);
trackContext.dispose();
if (slider.getOrientation() == JSlider.HORIZONTAL) {
// Calculate the height of all the subcomponents so we can center
// them.
valueRect.height = 0;
if (paintValue) {
valueRect.height =
synthGraphics.getMaximumCharHeight(context);
}
trackRect.height = trackHeight;
tickRect.height = 0;
if (slider.getPaintTicks()) {
tickRect.height = getTickLength();
}
labelRect.height = 0;
if (slider.getPaintLabels()) {
labelRect.height = getHeightOfTallestLabel();
}
contentDim.height = valueRect.height + trackRect.height
+ trackInsets.top + trackInsets.bottom
+ tickRect.height + labelRect.height + 4;
contentDim.width = slider.getWidth() - insetCache.left
- insetCache.right;
// Check if any of the labels will paint out of bounds.
int pad = 0;
if (slider.getPaintLabels()) {
// Calculate the track rectangle. It is necessary for
// xPositionForValue to return correct values.
trackRect.x = insetCache.left;
trackRect.width = contentDim.width;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
int minValue = slider.getMinimum();
int maxValue = slider.getMaximum();
// Iterate through the keys in the dictionary and find the
// first and last labels indices that fall within the
// slider range.
int firstLblIdx = Integer.MAX_VALUE;
int lastLblIdx = Integer.MIN_VALUE;
for (Enumeration keys = dictionary.keys();
keys.hasMoreElements(); ) {
int keyInt = ((Integer)keys.nextElement()).intValue();
if (keyInt >= minValue && keyInt < firstLblIdx) {
firstLblIdx = keyInt;
}
if (keyInt <= maxValue && keyInt > lastLblIdx) {
lastLblIdx = keyInt;
}
}
// Calculate the pad necessary for the labels at the first
// and last visible indices.
pad = getPadForLabel(firstLblIdx);
pad = Math.max(pad, getPadForLabel(lastLblIdx));
}
}
// Calculate the painting rectangles for each of the different
// slider areas.
valueRect.x = trackRect.x = tickRect.x = labelRect.x =
(insetCache.left + pad);
valueRect.width = trackRect.width = tickRect.width =
labelRect.width = (contentDim.width - (pad * 2));
int centerY = slider.getHeight() / 2 - contentDim.height / 2;
valueRect.y = centerY;
centerY += valueRect.height + 2;
trackRect.y = centerY + trackInsets.top;
centerY += trackRect.height + trackInsets.top + trackInsets.bottom;
tickRect.y = centerY;
centerY += tickRect.height + 2;
labelRect.y = centerY;
centerY += labelRect.height;
} else {
// Calculate the width of all the subcomponents so we can center
// them.
trackRect.width = trackHeight;
tickRect.width = 0;
if (slider.getPaintTicks()) {
tickRect.width = getTickLength();
}
labelRect.width = 0;
if (slider.getPaintLabels()) {
labelRect.width = getWidthOfWidestLabel();
}
valueRect.y = insetCache.top;
valueRect.height = 0;
if (paintValue) {
valueRect.height =
synthGraphics.getMaximumCharHeight(context);
}
// Get the max width of the min or max value of the slider.
FontMetrics fm = slider.getFontMetrics(slider.getFont());
valueRect.width = Math.max(
synthGraphics.computeStringWidth(context, slider.getFont(),
fm, "" + slider.getMaximum()),
synthGraphics.computeStringWidth(context, slider.getFont(),
fm, "" + slider.getMinimum()));
int l = valueRect.width / 2;
int w1 = trackInsets.left + trackRect.width / 2;
int w2 = trackRect.width / 2 + trackInsets.right +
tickRect.width + labelRect.width;
contentDim.width = Math.max(w1, l) + Math.max(w2, l) +
2 + insetCache.left + insetCache.right;
contentDim.height = slider.getHeight() -
insetCache.top - insetCache.bottom;
// Layout the components.
trackRect.y = tickRect.y = labelRect.y =
valueRect.y + valueRect.height;
trackRect.height = tickRect.height = labelRect.height =
contentDim.height - valueRect.height;
int startX = slider.getWidth() / 2 - contentDim.width / 2;
if (SynthLookAndFeel.isLeftToRight(slider)) {
if (l > w1) {
startX += (l - w1);
}
trackRect.x = startX + trackInsets.left;
startX += trackInsets.left + trackRect.width + trackInsets.right;
tickRect.x = startX;
labelRect.x = startX + tickRect.width + 2;
} else {
if (l > w2) {
startX += (l - w2);
}
labelRect.x = startX;
startX += labelRect.width + 2;
tickRect.x = startX;
trackRect.x = startX + tickRect.width + trackInsets.left;
}
}
context.dispose();
|
| public void | paint(java.awt.Graphics g, javax.swing.JComponent c)
SynthContext context = getContext(c);
paint(context, g);
context.dispose();
|
| public void | paint(javax.swing.plaf.synth.SynthContext context, java.awt.Graphics g)
recalculateIfInsetsChanged();
recalculateIfOrientationChanged();
Rectangle clip = g.getClipBounds();
if (paintValue) {
FontMetrics fm = SwingUtilities2.getFontMetrics(slider, g);
int labelWidth = context.getStyle().getGraphicsUtils(context).
computeStringWidth(context, g.getFont(), fm,
"" + slider.getValue());
valueRect.x = thumbRect.x + (thumbRect.width - labelWidth) / 2;
// For horizontal sliders, make sure value is not painted
// outside slider bounds.
if (slider.getOrientation() == JSlider.HORIZONTAL) {
if (valueRect.x + labelWidth > contentDim.width) {
valueRect.x = contentDim.width - labelWidth;
}
valueRect.x = Math.max(valueRect.x, 0);
}
g.setColor(context.getStyle().getColor(
context, ColorType.TEXT_FOREGROUND));
context.getStyle().getGraphicsUtils(context).paintText(
context, g, "" + slider.getValue(), valueRect.x,
valueRect.y, -1);
}
SynthContext subcontext = getContext(slider, Region.SLIDER_TRACK);
paintTrack(subcontext, g, trackRect);
subcontext.dispose();
subcontext = getContext(slider, Region.SLIDER_THUMB);
paintThumb(subcontext, g, thumbRect);
subcontext.dispose();
if (slider.getPaintTicks() && clip.intersects(tickRect)) {
paintTicks(g);
}
if (slider.getPaintLabels() && clip.intersects(labelRect)) {
paintLabels(g);
}
|
| public void | paintBorder(javax.swing.plaf.synth.SynthContext context, java.awt.Graphics g, int x, int y, int w, int h)
context.getPainter().paintSliderBorder(context, g, x, y, w, h,
slider.getOrientation());
|
| public void | paintThumb(javax.swing.plaf.synth.SynthContext context, java.awt.Graphics g, java.awt.Rectangle thumbBounds)
int orientation = slider.getOrientation();
SynthLookAndFeel.updateSubregion(context, g, thumbBounds);
context.getPainter().paintSliderThumbBackground(context, g,
thumbBounds.x, thumbBounds.y, thumbBounds.width,
thumbBounds.height, orientation);
context.getPainter().paintSliderThumbBorder(context, g,
thumbBounds.x, thumbBounds.y, thumbBounds.width,
thumbBounds.height, orientation);
|
| public void | paintTrack(javax.swing.plaf.synth.SynthContext context, java.awt.Graphics g, java.awt.Rectangle trackBounds)
int orientation = slider.getOrientation();
SynthLookAndFeel.updateSubregion(context, g, trackBounds);
context.getPainter().paintSliderTrackBackground(context, g,
trackBounds.x, trackBounds.y, trackBounds.width,
trackBounds.height, orientation);
context.getPainter().paintSliderTrackBorder(context, g,
trackBounds.x, trackBounds.y, trackBounds.width,
trackBounds.height, orientation);
|
| public void | propertyChange(java.beans.PropertyChangeEvent e)
if (SynthLookAndFeel.shouldUpdateStyle(e)) {
updateStyle((JSlider)e.getSource());
}
|
| protected void | recalculateIfInsetsChanged()
SynthContext context = getContext(slider);
Insets newInsets = style.getInsets(context, null);
if (!newInsets.equals(insetCache)) {
insetCache = newInsets;
calculateGeometry();
}
context.dispose();
|
| private void | setThumbActive(boolean active)
if (thumbActive != active) {
thumbActive = active;
slider.repaint(thumbRect);
}
|
| public void | setThumbLocation(int x, int y)
super.setThumbLocation(x, y);
// Value rect is tied to the thumb location. We need to repaint when
// the thumb repaints.
slider.repaint(valueRect.x, valueRect.y,
valueRect.width, valueRect.height);
setThumbActive(false);
|
| protected void | uninstallDefaults()
SynthContext context = getContext(slider, ENABLED);
style.uninstallDefaults(context);
context.dispose();
style = null;
context = getContext(slider, Region.SLIDER_TRACK, ENABLED);
sliderTrackStyle.uninstallDefaults(context);
context.dispose();
sliderTrackStyle = null;
context = getContext(slider, Region.SLIDER_THUMB, ENABLED);
sliderThumbStyle.uninstallDefaults(context);
context.dispose();
sliderThumbStyle = null;
|
| protected void | uninstallListeners(javax.swing.JSlider slider)
slider.removePropertyChangeListener(this);
super.uninstallListeners(slider);
|
| public void | update(java.awt.Graphics g, javax.swing.JComponent c)
SynthContext context = getContext(c);
SynthLookAndFeel.update(context, g);
context.getPainter().paintSliderBackground(context,
g, 0, 0, c.getWidth(), c.getHeight(),
slider.getOrientation());
paint(context, g);
context.dispose();
|
| private void | updateStyle(javax.swing.JSlider c)
SynthContext context = getContext(c, ENABLED);
SynthStyle oldStyle = style;
style = SynthLookAndFeel.updateStyle(context, this);
if (style != oldStyle) {
thumbWidth =
style.getInt(context, "Slider.thumbWidth", 30);
thumbHeight =
style.getInt(context, "Slider.thumbHeight", 14);
trackBorder =
style.getInt(context, "Slider.trackBorder", 1);
trackHeight = thumbHeight + trackBorder * 2;
paintValue = style.getBoolean(context,
"Slider.paintValue", true);
if (oldStyle != null) {
uninstallKeyboardActions(c);
installKeyboardActions(c);
}
}
context.dispose();
context = getContext(c, Region.SLIDER_TRACK, ENABLED);
sliderTrackStyle =
SynthLookAndFeel.updateStyle(context, this);
context.dispose();
context = getContext(c, Region.SLIDER_THUMB, ENABLED);
sliderThumbStyle =
SynthLookAndFeel.updateStyle(context, this);
context.dispose();
|
| private void | updateThumbState(int x, int y)
setThumbActive(thumbRect.contains(x, y));
|
| public int | valueForXPosition(int xPos)Returns a value give an x position. If xPos is past the track at the
left or the right it will set the value to the min or max of the
slider, depending if the slider is inverted or not.
int value;
int minValue = slider.getMinimum();
int maxValue = slider.getMaximum();
int trackLeft = trackRect.x + thumbRect.width / 2 + trackBorder;
int trackRight = trackRect.x + trackRect.width
- thumbRect.width / 2 - trackBorder;
int trackLength = trackRight - trackLeft;
if (xPos <= trackLeft) {
value = drawInverted() ? maxValue : minValue;
} else if (xPos >= trackRight) {
value = drawInverted() ? minValue : maxValue;
} else {
int distanceFromTrackLeft = xPos - trackLeft;
double valueRange = (double)maxValue - (double)minValue;
double valuePerPixel = valueRange / (double)trackLength;
int valueFromTrackLeft =
(int)Math.round(distanceFromTrackLeft * valuePerPixel);
value = drawInverted() ?
maxValue - valueFromTrackLeft : minValue + valueFromTrackLeft;
}
return value;
|
| public int | valueForYPosition(int yPos)Returns a value give a y position. If yPos is past the track at the
top or the bottom it will set the value to the min or max of the
slider, depending if the slider is inverted or not.
int value;
int minValue = slider.getMinimum();
int maxValue = slider.getMaximum();
int trackTop = trackRect.y + thumbRect.height / 2 + trackBorder;
int trackBottom = trackRect.y + trackRect.height
- thumbRect.height / 2 - trackBorder;
int trackLength = trackBottom - trackTop;
if (yPos <= trackTop) {
value = drawInverted() ? minValue : maxValue;
} else if (yPos >= trackBottom) {
value = drawInverted() ? maxValue : minValue;
} else {
int distanceFromTrackTop = yPos - trackTop;
double valueRange = (double)maxValue - (double)minValue;
double valuePerPixel = valueRange / (double)trackLength;
int valueFromTrackTop =
(int)Math.round(distanceFromTrackTop * valuePerPixel);
value = drawInverted() ?
minValue + valueFromTrackTop : maxValue - valueFromTrackTop;
}
return value;
|
| protected int | xPositionForValue(int value)
int min = slider.getMinimum();
int max = slider.getMaximum();
int trackLeft = trackRect.x + thumbRect.width / 2 + trackBorder;
int trackRight = trackRect.x + trackRect.width - thumbRect.width / 2
- trackBorder;
int trackLength = trackRight - trackLeft;
double valueRange = (double)max - (double)min;
double pixelsPerValue = (double)trackLength / valueRange;
int xPosition;
if (!drawInverted()) {
xPosition = trackLeft;
xPosition += Math.round( pixelsPerValue * ((double)value - min));
} else {
xPosition = trackRight;
xPosition -= Math.round( pixelsPerValue * ((double)value - min));
}
xPosition = Math.max(trackLeft, xPosition);
xPosition = Math.min(trackRight, xPosition);
return xPosition;
|
| protected int | yPositionForValue(int value, int trackY, int trackHeight)
int min = slider.getMinimum();
int max = slider.getMaximum();
int trackTop = trackY + thumbRect.height / 2 + trackBorder;
int trackBottom = trackY + trackHeight - thumbRect.height / 2 -
trackBorder;
int trackLength = trackBottom - trackTop;
double valueRange = (double)max - (double)min;
double pixelsPerValue = (double)trackLength / (double)valueRange;
int yPosition;
if (!drawInverted()) {
yPosition = trackTop;
yPosition += Math.round(pixelsPerValue * ((double)max - value));
} else {
yPosition = trackTop;
yPosition += Math.round(pixelsPerValue * ((double)value - min));
}
yPosition = Math.max(trackTop, yPosition);
yPosition = Math.min(trackBottom, yPosition);
return yPosition;
|
