public Dimension preferredLayoutSize(Container parent) {
JToolBar tb = (JToolBar) parent;
Insets insets = tb.getInsets();
Dimension dim = new Dimension();
SeaGlassContext context = getContext(tb);
if (tb.getOrientation() == JToolBar.HORIZONTAL) {
dim.width = tb.isFloatable() ? SeaGlassIcon.getIconWidth(handleIcon, context) : 0;
Dimension compDim;
for (int i = 0; i < tb.getComponentCount(); i++) {
Component component = tb.getComponent(i);
if (component.isVisible()) {
compDim = component.getPreferredSize();
dim.width += compDim.width;
dim.height = Math.max(dim.height, compDim.height);
}
}
} else {
dim.height = tb.isFloatable() ? SeaGlassIcon.getIconHeight(handleIcon, context) : 0;
Dimension compDim;
for (int i = 0; i < tb.getComponentCount(); i++) {
Component component = tb.getComponent(i);
if (component.isVisible()) {
compDim = component.getPreferredSize();
dim.width = Math.max(dim.width, compDim.width);
dim.height += compDim.height;
}
}
}
dim.width += insets.left + insets.right;
dim.height += insets.top + insets.bottom;
context.dispose();
return dim;
}
/**
* This method is called when the mouse is released from the JToolBar.
*
* @param e The MouseEvent.
*/
public void mouseReleased(MouseEvent e) {
if (!isDragging || !toolBar.isFloatable()) return;
isDragging = false;
floatAt(e.getPoint(), origin);
dragWindow.hide();
}
/**
* This method is called when the mouse is pressed in the JToolBar. If the press doesn't occur
* in a place where it causes the JToolBar to be dragged, it returns. Otherwise, it starts a
* drag session.
*
* @param e The MouseEvent.
*/
public void mousePressed(MouseEvent e) {
if (!toolBar.isFloatable()) return;
Point ssd = e.getPoint();
Insets insets = toolBar.getInsets();
// Verify that this click occurs in the top inset.
if (toolBar.getOrientation() == SwingConstants.HORIZONTAL) {
if (e.getX() > insets.left) return;
} else {
if (e.getY() > insets.top) return;
}
origin = new Point(0, 0);
if (toolBar.isShowing()) SwingUtilities.convertPointToScreen(ssd, toolBar);
if (!(SwingUtilities.getAncestorOfClass(Window.class, toolBar) instanceof UIResource))
// Need to know who keeps the toolBar if it gets dragged back into it.
origParent = toolBar.getParent();
if (toolBar.isShowing()) SwingUtilities.convertPointToScreen(origin, toolBar);
isDragging = true;
if (dragWindow != null)
dragWindow.setOffset(new Point(cachedBounds.width / 2, cachedBounds.height / 2));
dragTo(e.getPoint(), origin);
}
/**
* This method returns the border insets for the JToolBar.
*
* @param c The Component to find insets for.
* @return The border insets.
*/
public Insets getBorderInsets(Component c) {
if (c instanceof JToolBar) {
JToolBar tb = (JToolBar) c;
int orientation = tb.getOrientation();
if (!tb.isFloatable()) return new Insets(regular, regular, regular, regular);
else if (orientation == SwingConstants.HORIZONTAL)
return new Insets(regular, offset, regular, regular);
else return new Insets(offset, regular, regular, regular);
}
return new Insets(0, 0, 0, 0);
}
public void layoutContainer(Container parent) {
JToolBar tb = (JToolBar) parent;
Insets insets = tb.getInsets();
boolean ltr = tb.getComponentOrientation().isLeftToRight();
SeaGlassContext context = getContext(tb);
Component c;
Dimension d;
// JToolBar by default uses a somewhat modified BoxLayout as
// its layout manager. For compatibility reasons, we want to
// support Box "glue" as a way to move things around on the
// toolbar. "glue" is represented in BoxLayout as a Box.Filler
// with a minimum and preferred size of (0,0).
// So what we do here is find the number of such glue fillers
// and figure out how much space should be allocated to them.
int glueCount = 0;
for (int i = 0; i < tb.getComponentCount(); i++) {
if (isGlue(tb.getComponent(i))) glueCount++;
}
if (tb.getOrientation() == JToolBar.HORIZONTAL) {
int handleWidth = tb.isFloatable() ? SeaGlassIcon.getIconWidth(handleIcon, context) : 0;
// Note: contentRect does not take insets into account
// since it is used for determining the bounds that are
// passed to paintToolBarContentBackground().
contentRect.x = ltr ? handleWidth : 0;
contentRect.y = 0;
contentRect.width = tb.getWidth() - handleWidth;
contentRect.height = tb.getHeight();
// However, we do take the insets into account here for
// the purposes of laying out the toolbar child components.
int x = ltr ? handleWidth + insets.left : tb.getWidth() - handleWidth - insets.right;
int baseY = insets.top;
int baseH = tb.getHeight() - insets.top - insets.bottom;
// we need to get the minimum width for laying things out
// so that we can calculate how much empty space needs to
// be distributed among the "glue", if any
int extraSpacePerGlue = 0;
if (glueCount > 0) {
int minWidth = minimumLayoutSize(parent).width;
extraSpacePerGlue = (tb.getWidth() - minWidth) / glueCount;
if (extraSpacePerGlue < 0) extraSpacePerGlue = 0;
}
for (int i = 0; i < tb.getComponentCount(); i++) {
c = tb.getComponent(i);
if (c.isVisible()) {
d = c.getPreferredSize();
int y, h;
if (d.height >= baseH || c instanceof JSeparator) {
// Fill available height
y = baseY;
h = baseH;
} else {
// Center component vertically in the available
// space
y = baseY + (baseH / 2) - (d.height / 2);
h = d.height;
}
// if the component is a "glue" component then add to
// its
// width the extraSpacePerGlue it is due
if (isGlue(c)) d.width += extraSpacePerGlue;
c.setBounds(ltr ? x : x - d.width, y, d.width, h);
x = ltr ? x + d.width : x - d.width;
}
}
} else {
int handleHeight = tb.isFloatable() ? SeaGlassIcon.getIconHeight(handleIcon, context) : 0;
// See notes above regarding the use of insets
contentRect.x = 0;
contentRect.y = handleHeight;
contentRect.width = tb.getWidth();
contentRect.height = tb.getHeight() - handleHeight;
int baseX = insets.left;
int baseW = tb.getWidth() - insets.left - insets.right;
int y = handleHeight + insets.top;
// we need to get the minimum height for laying things out
// so that we can calculate how much empty space needs to
// be distributed among the "glue", if any
int extraSpacePerGlue = 0;
if (glueCount > 0) {
int minHeight = minimumLayoutSize(parent).height;
extraSpacePerGlue = (tb.getHeight() - minHeight) / glueCount;
if (extraSpacePerGlue < 0) extraSpacePerGlue = 0;
}
for (int i = 0; i < tb.getComponentCount(); i++) {
c = tb.getComponent(i);
if (c.isVisible()) {
d = c.getPreferredSize();
int x, w;
if (d.width >= baseW || c instanceof JSeparator) {
// Fill available width
x = baseX;
w = baseW;
} else {
// Center component horizontally in the available
// space
x = baseX + (baseW / 2) - (d.width / 2);
w = d.width;
}
// if the component is a "glue" component then add to
// its
// height the extraSpacePerGlue it is due
if (isGlue(c)) d.height += extraSpacePerGlue;
c.setBounds(x, y, w, d.height);
y += d.height;
}
}
}
context.dispose();
}