public void actionPerformed(ActionEvent ev) {
if (collapsed) {
if (label != null) {
remove(label);
}
add(comp);
moreOrLessButton.setIcon(collapseIcon);
} else {
remove(comp);
if (valueLabelStr != null) {
if (label == null) {
label = new JLabel(Resources.format(Messages.CURRENT_VALUE, valueLabelStr));
}
add(label);
}
moreOrLessButton.setIcon(expandIcon);
}
collapsed = !collapsed;
JComponent container = (JComponent) getParent();
if (container != null && container.getLayout() instanceof VariableGridLayout) {
((VariableGridLayout) container.getLayout()).setFillRow(this, !collapsed);
container.revalidate();
}
}
/**
* Creates a LabeledBorder instance with the specified border and label.
*
* @param border the border
* @param label the label the border should display
*/
public LabeledBorder(Border border, JComponent label) {
super(border);
this.label = label;
if (label instanceof JLabel && label.getForeground() instanceof ColorUIResource) {
label.setForeground(getTitleColor());
}
}
/**
* Returns the minimum dimensions this border requires in order to fully display the border and
* title.
*
* @param c the component where this border will be drawn
*/
public Dimension getMinimumSize(Component c) {
Insets insets = getBorderInsets(c);
Dimension minSize = new Dimension(insets.right + insets.left, insets.top + insets.bottom);
minSize.width += label.getWidth();
return minSize;
}
/**
* Reinitialize the insets parameter with this Border's current Insets.
*
* @param c the component for which this border insets value applies
* @param insets the object to be reinitialized
*/
public Insets getBorderInsets(Component c, Insets insets) {
Border border = getBorder();
if (border != null) {
if (border instanceof AbstractBorder) {
((AbstractBorder) border).getBorderInsets(c, insets);
} else {
// Can't reuse border insets because the Border interface
// can't be enhanced.
Insets i = border.getBorderInsets(c);
insets.top = i.top;
insets.right = i.right;
insets.bottom = i.bottom;
insets.left = i.left;
}
} else {
insets.left = insets.top = insets.right = insets.bottom = 0;
}
insets.left += EDGE_SPACING + TEXT_SPACING;
insets.right += EDGE_SPACING + TEXT_SPACING;
insets.top += EDGE_SPACING + TEXT_SPACING;
insets.bottom += EDGE_SPACING + TEXT_SPACING;
if (c == null || label == null) {
return insets;
}
insets.top += label.getHeight();
return insets;
}
public void doLayout() {
if (getLayout() != null) {
// A layout manager has been set, so delegate to it
super.doLayout();
return;
}
Dimension d = getSize();
Insets i = getInsets();
if (collapsed) {
if (label != null) {
Dimension p = label.getPreferredSize();
label.setBounds(
i.left, i.top + (d.height - i.top - i.bottom - p.height) / 2, p.width, p.height);
}
} else {
if (comp != null) {
comp.setBounds(i.left, i.top, d.width - i.left - i.right, d.height - i.top - i.bottom);
}
}
}
/**
* Paints the border for the specified component with the specified position and size.
*
* @param c the component for which this border is being painted
* @param g the paint graphics
* @param x the x position of the painted border
* @param y the y position of the painted border
* @param width the width of the painted border
* @param height the height of the painted border
*/
public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
Border border = getBorder();
if (label == null) {
if (border != null) {
border.paintBorder(c, g, x, y, width, height);
}
return;
}
Rectangle grooveRect =
new Rectangle(
x + EDGE_SPACING,
y + EDGE_SPACING,
width - (EDGE_SPACING * 2),
height - (EDGE_SPACING * 2));
Dimension labelDim = label.getPreferredSize();
int baseline = label.getBaseline(labelDim.width, labelDim.height);
int ascent = Math.max(0, baseline);
int descent = labelDim.height - ascent;
int diff;
Insets insets;
if (border != null) {
insets = border.getBorderInsets(c);
} else {
insets = new Insets(0, 0, 0, 0);
}
diff = Math.max(0, ascent / 2 + TEXT_SPACING - EDGE_SPACING);
grooveRect.y += diff;
grooveRect.height -= diff;
compLoc.y = grooveRect.y + insets.top / 2 - (ascent + descent) / 2 - 1;
int justification;
if (c.getComponentOrientation().isLeftToRight()) {
justification = LEFT;
} else {
justification = RIGHT;
}
switch (justification) {
case LEFT:
compLoc.x = grooveRect.x + TEXT_INSET_H + insets.left;
break;
case RIGHT:
compLoc.x =
(grooveRect.x + grooveRect.width - (labelDim.width + TEXT_INSET_H + insets.right));
break;
}
// If title is positioned in middle of border AND its fontsize
// is greater than the border's thickness, we'll need to paint
// the border in sections to leave space for the component's background
// to show through the title.
//
if (border != null) {
if (grooveRect.y > compLoc.y - ascent) {
Rectangle clipRect = new Rectangle();
// save original clip
Rectangle saveClip = g.getClipBounds();
// paint strip left of text
clipRect.setBounds(saveClip);
if (computeIntersection(clipRect, x, y, compLoc.x - 1 - x, height)) {
g.setClip(clipRect);
border.paintBorder(
c, g, grooveRect.x, grooveRect.y, grooveRect.width, grooveRect.height);
}
// paint strip right of text
clipRect.setBounds(saveClip);
if (computeIntersection(
clipRect,
compLoc.x + labelDim.width + 1,
y,
x + width - (compLoc.x + labelDim.width + 1),
height)) {
g.setClip(clipRect);
border.paintBorder(
c, g, grooveRect.x, grooveRect.y, grooveRect.width, grooveRect.height);
}
// paint strip below text
clipRect.setBounds(saveClip);
if (computeIntersection(
clipRect,
compLoc.x - 1,
compLoc.y + ascent + descent,
labelDim.width + 2,
y + height - compLoc.y - ascent - descent)) {
g.setClip(clipRect);
border.paintBorder(
c, g, grooveRect.x, grooveRect.y, grooveRect.width, grooveRect.height);
}
// restore clip
g.setClip(saveClip);
} else {
border.paintBorder(c, g, grooveRect.x, grooveRect.y, grooveRect.width, grooveRect.height);
}
label.setLocation(compLoc);
label.setSize(labelDim);
}
}