public float getProgress() {
BoundedRangeModel model = progressBar.getModel();
float progress = (float) (model.getValue() - model.getMinimum());
float limit = (float) model.getMaximum();
return progress / limit;
}
private void updateScrolling() {
if (myScrollingEnabled) {
myBoundedRangeModel.setRangeProperties(
0,
myTermSize.height,
-myTerminalTextBuffer.getHistoryBuffer().getLineCount(),
myTermSize.height,
false);
} else {
myBoundedRangeModel.setRangeProperties(0, myTermSize.height, 0, myTermSize.height, false);
}
}
/**
* This determines the amount of the progress bar that should be filled based on the percent done
* gathered from the model. This is a common operation so it was abstracted out. It assumes that
* your progress bar is linear. That is, if you are making a circular progress indicator, you will
* want to override this method.
*/
protected int getAmountFull(Insets b, int width, int height) {
int amountFull = 0;
BoundedRangeModel model = progressBar.getModel();
if ((model.getMaximum() - model.getMinimum()) != 0) {
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
amountFull = (int) Math.round(width * progressBar.getPercentComplete());
} else {
amountFull = (int) Math.round(height * progressBar.getPercentComplete());
}
}
return amountFull;
}
/**
* Creates a JSlider built using a {@link DefaultBoundedRangeModel} and containing a {@link
* MouseWheelListener} and some usual default settings
*
* @param model
* @return the corresponding {@link JSlider}
*/
public static JSlider createJSlider(final BoundedRangeModel model) {
final JSlider slider = new JSlider(model);
slider.addMouseWheelListener(
new MouseWheelListener() {
@Override
public void mouseWheelMoved(MouseWheelEvent e) {
slider.setValue(-e.getWheelRotation() * model.getExtent() + model.getValue());
}
});
slider.setPaintTicks(true);
slider.setPaintLabels(true);
slider.setMajorTickSpacing(model.getMaximum() / 2);
slider.setMinorTickSpacing(model.getExtent());
slider.setSnapToTicks(true);
return slider;
}
public synchronized void setPlayer(Player player) {
if (this.player != null) {
this.player.removeChangeListener(this);
player.removePropertyChangeListener(this);
}
this.player = player;
// boundedRangeModel = player == null ? null : player.getBoundedRangeModel();
boundedRangeModel = player == null ? null : player.getTimeModel();
slider.setModel(boundedRangeModel);
if (player != null) {
if (player.getState() >= Player.REALIZED
&& boundedRangeModel != null
&& boundedRangeModel.getMaximum() == 0) {
setPlayerControlsVisible(false);
}
slider.setProgressModel(player.getCachingModel());
startButton.setSelected(player.isActive());
player.addChangeListener(this);
player.addPropertyChangeListener(this);
audioButton.setVisible(player.isAudioAvailable());
audioButton.setSelected(player.isAudioEnabled());
colorCyclingButton.setVisible(
(player instanceof ColorCyclePlayer)
? ((ColorCyclePlayer) player).isColorCyclingAvailable()
: false);
colorCyclingButton.setSelected(
(player instanceof ColorCyclePlayer)
? ((ColorCyclePlayer) player).isColorCyclingStarted()
: false);
validate();
repaint();
BoundedRangeModel cachingControlModel = slider.getProgressModel();
}
}
// ChangeListener
public void stateChanged(ChangeEvent e) {
BoundedRangeModel model = progressBar.getModel();
int newRange = model.getMaximum() - model.getMinimum();
int newPercent;
int oldPercent = getCachedPercent();
if (newRange > 0) {
newPercent = (int) ((100 * (long) model.getValue()) / newRange);
} else {
newPercent = 0;
}
if (newPercent != oldPercent) {
setCachedPercent(newPercent);
progressBar.repaint();
}
}
public void actionPerformed(ActionEvent event) {
Object source = event.getSource();
if (boundedRangeModel != null) {
int value = boundedRangeModel.getValue();
if (source == forwardButton) {
boundedRangeModel.setValue(
value == boundedRangeModel.getMaximum() ? boundedRangeModel.getMinimum() : value + 1);
} else if (source == rewindButton) {
boundedRangeModel.setValue(
value == boundedRangeModel.getMinimum() ? boundedRangeModel.getMaximum() : value - 1);
} else if (source == startButton) {
if (startButton.isSelected() != player.isActive()) {
if (startButton.isSelected()) {
player.start();
} else {
player.stop();
}
}
} else if (source == audioButton) {
player.setAudioEnabled(audioButton.isSelected());
} else if (source == colorCyclingButton) {
if (player instanceof ColorCyclePlayer) {
((ColorCyclePlayer) player).setColorCyclingStarted(colorCyclingButton.isSelected());
}
}
}
}
/**
* Update the visibility model with the associated JTextField (if there is one) to reflect the
* current visibility as a result of changes to the document model. The bounded range properties
* are updated. If the view hasn't yet been shown the extent will be zero and we just set it to be
* full until determined otherwise.
*/
void updateVisibilityModel() {
Component c = getContainer();
if (c instanceof JTextField) {
JTextField field = (JTextField) c;
BoundedRangeModel vis = field.getHorizontalVisibility();
int hspan = (int) getPreferredSpan(X_AXIS);
int extent = vis.getExtent();
int maximum = Math.max(hspan, extent);
extent = (extent == 0) ? maximum : extent;
int value = maximum - extent;
int oldValue = vis.getValue();
if ((oldValue + extent) > maximum) {
oldValue = maximum - extent;
}
value = Math.max(0, Math.min(value, oldValue));
vis.setRangeProperties(value, extent, 0, maximum, false);
}
}
private void clearBuffer() {
if (!myTerminalTextBuffer.isUsingAlternateBuffer()) {
myTerminalTextBuffer.clearHistory();
if (myCoordsAccessor != null && myCoordsAccessor.getY() > 0) {
TerminalLine line = myTerminalTextBuffer.getLine(myCoordsAccessor.getY() - 1);
myTerminalTextBuffer.clearAll();
myCoordsAccessor.setY(0);
myCursor.setY(1);
myTerminalTextBuffer.addLine(line);
}
updateScrolling();
myClientScrollOrigin = myBoundedRangeModel.getValue();
}
}
/**
* Set the models value to the position of the top/left of the thumb relative to the origin of
* the track.
*/
public void mouseDragged(MouseEvent e) {
if (!XTraScrollBarUI.this.scrollbar().isEnabled() || !XTraScrollBarUI.this.isDragging()) {
return;
}
Insets sbInsets = XTraScrollBarUI.this.scrollbar().getInsets();
BoundedRangeModel model = XTraScrollBarUI.this.scrollbar().getModel();
Rectangle thumbR = XTraScrollBarUI.this.getThumbBounds();
float trackLength;
int thumbMin, thumbMax, thumbPos;
if (XTraScrollBarUI.this.scrollbar().getOrientation() == JScrollBar.VERTICAL) {
thumbMin = sbInsets.top; // decrButton.getY() + decrButton.getHeight();
thumbMax =
XTraScrollBarUI.this.decrButton().getY() /*incrButton.getY()*/
- XTraScrollBarUI.this.getThumbBounds().height;
thumbPos = Math.min(thumbMax, Math.max(thumbMin, (e.getY() - offset)));
XTraScrollBarUI.this.setThumbBounds(thumbR.x, thumbPos, thumbR.width, thumbR.height);
trackLength = XTraScrollBarUI.this.getTrackBounds().height;
} else {
thumbMin = sbInsets.left; // decrButton.getX() + decrButton.getWidth();
thumbMax =
XTraScrollBarUI.this.decrButton().getX() /*incrButton.getX()*/
- XTraScrollBarUI.this.getThumbBounds().width;
thumbPos = Math.min(thumbMax, Math.max(thumbMin, (e.getX() - offset)));
XTraScrollBarUI.this.setThumbBounds(thumbPos, thumbR.y, thumbR.width, thumbR.height);
trackLength = XTraScrollBarUI.this.getTrackBounds().width;
}
/* Set the scrollbars value. If the thumb has reached the end of
* the scrollbar, then just set the value to its maximum. Otherwise
* compute the value as accurately as possible.
*/
if (thumbPos == thumbMax) {
XTraScrollBarUI.this.scrollbar().setValue(model.getMaximum() - model.getExtent());
} else {
float valueMax = model.getMaximum() - model.getExtent();
float valueRange = valueMax - model.getMinimum();
float thumbValue = thumbPos - thumbMin;
float thumbRange = thumbMax - thumbMin;
int value = (int) (0.5 + ((thumbValue / thumbRange) * valueRange));
XTraScrollBarUI.this.scrollbar().setValue(value + model.getMinimum());
}
}
private void moveScrollBar(int k) {
myBoundedRangeModel.setValue(myBoundedRangeModel.getValue() + k);
}
private void scrollToBottom() {
myBoundedRangeModel.setValue(myTermSize.height);
}
public void init() {
initFont();
setUpClipboard();
setPreferredSize(new Dimension(getPixelWidth(), getPixelHeight()));
setFocusable(true);
enableInputMethods(true);
setDoubleBuffered(true);
setFocusTraversalKeysEnabled(false);
addMouseMotionListener(
new MouseMotionAdapter() {
@Override
public void mouseDragged(final MouseEvent e) {
if (!isLocalMouseAction(e)) {
return;
}
final Point charCoords = panelToCharCoords(e.getPoint());
if (mySelection == null) {
// prevent unlikely case where drag started outside terminal panel
if (mySelectionStartPoint == null) {
mySelectionStartPoint = charCoords;
}
mySelection = new TerminalSelection(new Point(mySelectionStartPoint));
}
repaint();
mySelection.updateEnd(charCoords);
if (mySettingsProvider.copyOnSelect()) {
handleCopy(false);
}
if (e.getPoint().y < 0) {
moveScrollBar((int) ((e.getPoint().y) * SCROLL_SPEED));
}
if (e.getPoint().y > getPixelHeight()) {
moveScrollBar((int) ((e.getPoint().y - getPixelHeight()) * SCROLL_SPEED));
}
}
});
addMouseWheelListener(
new MouseWheelListener() {
@Override
public void mouseWheelMoved(MouseWheelEvent e) {
if (isLocalMouseAction(e)) {
int notches = e.getWheelRotation();
moveScrollBar(notches);
}
}
});
addMouseListener(
new MouseAdapter() {
@Override
public void mousePressed(final MouseEvent e) {
if (e.getButton() == MouseEvent.BUTTON1) {
if (e.getClickCount() == 1) {
mySelectionStartPoint = panelToCharCoords(e.getPoint());
mySelection = null;
repaint();
}
}
}
@Override
public void mouseReleased(final MouseEvent e) {
requestFocusInWindow();
repaint();
}
@Override
public void mouseClicked(final MouseEvent e) {
requestFocusInWindow();
if (e.getButton() == MouseEvent.BUTTON1 && isLocalMouseAction(e)) {
int count = e.getClickCount();
if (count == 1) {
// do nothing
} else if (count == 2) {
// select word
final Point charCoords = panelToCharCoords(e.getPoint());
Point start = SelectionUtil.getPreviousSeparator(charCoords, myTerminalTextBuffer);
Point stop = SelectionUtil.getNextSeparator(charCoords, myTerminalTextBuffer);
mySelection = new TerminalSelection(start);
mySelection.updateEnd(stop);
if (mySettingsProvider.copyOnSelect()) {
handleCopy(false);
}
} else if (count == 3) {
// select line
final Point charCoords = panelToCharCoords(e.getPoint());
int startLine = charCoords.y;
while (startLine > -getScrollBuffer().getLineCount()
&& myTerminalTextBuffer.getLine(startLine - 1).isWrapped()) {
startLine--;
}
int endLine = charCoords.y;
while (endLine < myTerminalTextBuffer.getHeight()
&& myTerminalTextBuffer.getLine(endLine).isWrapped()) {
endLine++;
}
mySelection = new TerminalSelection(new Point(0, startLine));
mySelection.updateEnd(new Point(myTermSize.width, endLine));
if (mySettingsProvider.copyOnSelect()) {
handleCopy(false);
}
}
} else if (e.getButton() == MouseEvent.BUTTON2
&& mySettingsProvider.pasteOnMiddleMouseClick()
&& isLocalMouseAction(e)) {
handlePaste();
} else if (e.getButton() == MouseEvent.BUTTON3) {
JPopupMenu popup = createPopupMenu();
popup.show(e.getComponent(), e.getX(), e.getY());
}
repaint();
}
});
addComponentListener(
new ComponentAdapter() {
@Override
public void componentResized(final ComponentEvent e) {
sizeTerminalFromComponent();
}
});
addFocusListener(
new FocusAdapter() {
@Override
public void focusGained(FocusEvent e) {
myCursor.cursorChanged();
}
@Override
public void focusLost(FocusEvent e) {
myCursor.cursorChanged();
}
});
myBoundedRangeModel.addChangeListener(
new ChangeListener() {
public void stateChanged(final ChangeEvent e) {
myClientScrollOrigin = myBoundedRangeModel.getValue();
repaint();
}
});
createRepaintTimer();
}
protected void runTestGL(
final GLCapabilities caps,
final FrameLayout frameLayout,
final boolean twoCanvas,
final boolean resizeByComp)
throws InterruptedException, InvocationTargetException {
final JFrame frame = new JFrame("Bug816: " + this.getTestMethodName());
Assert.assertNotNull(frame);
final Container framePane = frame.getContentPane();
final GLCanvas glCanvas1 = new GLCanvas(caps);
Assert.assertNotNull(glCanvas1);
final GLCanvas glCanvas2;
if (twoCanvas) {
glCanvas2 = new GLCanvas(caps);
Assert.assertNotNull(glCanvas2);
} else {
glCanvas2 = null;
}
final Dimension glcDim = new Dimension(width / 2, height);
final Dimension frameDim = new Dimension(twoCanvas ? width + 64 : width / 2 + 64, height + 64);
setComponentSize(null, glCanvas1, glcDim, glCanvas2, glcDim);
switch (frameLayout) {
case None:
{
framePane.add(glCanvas1);
}
break;
case Flow:
{
final Container c = new Container();
c.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
c.add(glCanvas1);
if (twoCanvas) {
c.add(glCanvas2);
}
framePane.add(c);
}
break;
case DoubleBorderCenterSurrounded:
{
final Container c = new Container();
c.setLayout(new BorderLayout());
c.add(new Button("north"), BorderLayout.NORTH);
c.add(new Button("south"), BorderLayout.SOUTH);
c.add(new Button("east"), BorderLayout.EAST);
c.add(new Button("west"), BorderLayout.WEST);
if (twoCanvas) {
final Container c2 = new Container();
c2.setLayout(new GridLayout(1, 2));
c2.add(glCanvas1);
c2.add(glCanvas2);
c.add(c2, BorderLayout.CENTER);
} else {
c.add(glCanvas1, BorderLayout.CENTER);
}
framePane.setLayout(new BorderLayout());
framePane.add(new Button("NORTH"), BorderLayout.NORTH);
framePane.add(new Button("SOUTH"), BorderLayout.SOUTH);
framePane.add(new Button("EAST"), BorderLayout.EAST);
framePane.add(new Button("WEST"), BorderLayout.WEST);
framePane.add(c, BorderLayout.CENTER);
}
break;
case Box:
{
final Container c = new Container();
c.setLayout(new BoxLayout(c, BoxLayout.X_AXIS));
c.add(glCanvas1);
if (twoCanvas) {
c.add(glCanvas2);
}
framePane.add(c);
}
break;
case Split:
{
final Dimension sbDim = new Dimension(16, 16);
final JScrollPane vsp =
new JScrollPane(
ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,
ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
{
final JScrollBar vsb = vsp.getVerticalScrollBar();
vsb.setPreferredSize(sbDim);
final BoundedRangeModel model = vsb.getModel();
model.setMinimum(0);
model.setMaximum(100);
model.setValue(50);
model.setExtent(1);
vsb.setEnabled(true);
}
final JScrollPane hsp =
new JScrollPane(
ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER,
ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
{
final JScrollBar hsb = hsp.getHorizontalScrollBar();
hsb.setPreferredSize(sbDim);
final BoundedRangeModel model = hsb.getModel();
model.setMinimum(0);
model.setMaximum(100);
model.setValue(50);
model.setExtent(1);
hsb.setEnabled(true);
}
final JSplitPane horizontalSplitPane =
new JSplitPane(
JSplitPane.HORIZONTAL_SPLIT, true, twoCanvas ? glCanvas2 : vsp, glCanvas1);
horizontalSplitPane.setResizeWeight(0.5);
final JSplitPane verticalSplitPane =
new JSplitPane(JSplitPane.VERTICAL_SPLIT, true, horizontalSplitPane, hsp);
verticalSplitPane.setResizeWeight(0.5);
framePane.add(verticalSplitPane);
}
break;
}
final GearsES2 demo1 = new GearsES2(swapInterval);
glCanvas1.addGLEventListener(demo1);
if (twoCanvas) {
final RedSquareES2 demo2 = new RedSquareES2(swapInterval);
glCanvas2.addGLEventListener(demo2);
}
final Animator animator = new Animator();
animator.add(glCanvas1);
if (twoCanvas) {
animator.add(glCanvas2);
}
final QuitAdapter quitAdapter = new QuitAdapter();
new AWTWindowAdapter(new TraceWindowAdapter(quitAdapter), glCanvas1).addTo(frame);
javax.swing.SwingUtilities.invokeAndWait(
new Runnable() {
public void run() {
if (resizeByComp) {
frame.pack();
} else {
setFrameSize(frame, true, frameDim);
}
frame.setVisible(true);
}
});
Assert.assertEquals(true, AWTRobotUtil.waitForVisible(frame, true));
Assert.assertEquals(true, AWTRobotUtil.waitForRealized(glCanvas1, true));
if (twoCanvas) {
Assert.assertEquals(true, AWTRobotUtil.waitForRealized(glCanvas2, true));
}
animator.start();
Assert.assertTrue(animator.isStarted());
Assert.assertTrue(animator.isAnimating());
System.err.println(
"canvas1 pos/siz: "
+ glCanvas1.getX()
+ "/"
+ glCanvas1.getY()
+ " "
+ glCanvas1.getSurfaceWidth()
+ "x"
+ glCanvas1.getSurfaceHeight());
if (twoCanvas) {
System.err.println(
"canvas2 pos/siz: "
+ glCanvas2.getX()
+ "/"
+ glCanvas2.getY()
+ " "
+ glCanvas2.getSurfaceWidth()
+ "x"
+ glCanvas2.getSurfaceHeight());
}
Thread.sleep(Math.max(1000, duration / 2));
if (null != rwsize) {
final Dimension compRSizeHalf = new Dimension(rwsize.width / 2, rwsize.height);
final Dimension frameRSizeHalf =
new Dimension(twoCanvas ? rwsize.width + 64 : rwsize.width / 2 + 64, rwsize.height + 64);
if (resizeByComp) {
setComponentSize(frame, glCanvas1, compRSizeHalf, glCanvas2, compRSizeHalf);
} else {
setFrameSize(frame, true, frameRSizeHalf);
}
System.err.println(
"resize canvas1 pos/siz: "
+ glCanvas1.getX()
+ "/"
+ glCanvas1.getY()
+ " "
+ glCanvas1.getSurfaceWidth()
+ "x"
+ glCanvas1.getSurfaceHeight());
if (twoCanvas) {
System.err.println(
"resize canvas2 pos/siz: "
+ glCanvas2.getX()
+ "/"
+ glCanvas2.getY()
+ " "
+ glCanvas2.getSurfaceWidth()
+ "x"
+ glCanvas2.getSurfaceHeight());
}
}
final long t0 = System.currentTimeMillis();
long t1 = t0;
while (!quitAdapter.shouldQuit() && t1 - t0 < duration) {
Thread.sleep(100);
t1 = System.currentTimeMillis();
}
Assert.assertNotNull(frame);
Assert.assertNotNull(glCanvas1);
if (twoCanvas) {
Assert.assertNotNull(glCanvas2);
} else {
Assert.assertNull(glCanvas2);
}
Assert.assertNotNull(animator);
animator.stop();
Assert.assertFalse(animator.isAnimating());
Assert.assertFalse(animator.isStarted());
javax.swing.SwingUtilities.invokeAndWait(
new Runnable() {
public void run() {
frame.setVisible(false);
}
});
Assert.assertEquals(false, frame.isVisible());
javax.swing.SwingUtilities.invokeAndWait(
new Runnable() {
public void run() {
frame.remove(glCanvas1);
if (twoCanvas) {
frame.remove(glCanvas2);
}
frame.dispose();
}
});
}
public void adjustmentValueChanged(AdjustmentEvent e) {
if (!brm.getValueIsAdjusting()) {
if (wasAtBottom) brm.setValue(brm.getMaximum());
} else wasAtBottom = ((brm.getValue() + brm.getExtent()) == brm.getMaximum());
}
/** Run the task. */
public void run() {
final BoundedRangeModel model = progressBar.getModel();
switch (task) {
case -LABEL:
{
value = description.getText();
return;
}
case +LABEL:
{
description.setText((String) value);
return;
}
case PROGRESS:
{
model.setValue(((Integer) value).intValue());
progressBar.setIndeterminate(false);
return;
}
case STARTED:
{
model.setRangeProperties(0, 1, 0, 100, false);
window.setVisible(true);
break; // Need further action below.
}
case COMPLETE:
{
model.setRangeProperties(100, 1, 0, 100, false);
window.setVisible(warningArea != null);
cancel.setEnabled(false);
break; // Need further action below.
}
}
/*
* Some of the tasks above requires an action on the window, which may be a JDialog or
* a JInternalFrame. We need to determine the window type before to apply the action.
*/
synchronized (ProgressWindow.this) {
if (window instanceof JDialog) {
final JDialog window = (JDialog) ProgressWindow.this.window;
switch (task) {
case -TITLE:
{
value = window.getTitle();
return;
}
case +TITLE:
{
window.setTitle((String) value);
return;
}
case STARTED:
{
window.setDefaultCloseOperation(JDialog.DO_NOTHING_ON_CLOSE);
return;
}
case COMPLETE:
{
window.setDefaultCloseOperation(JDialog.HIDE_ON_CLOSE);
return;
}
case DISPOSE:
{
window.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
if (warningArea == null || !window.isVisible()) {
window.dispose();
}
return;
}
}
} else {
final JInternalFrame window = (JInternalFrame) ProgressWindow.this.window;
switch (task) {
case -TITLE:
{
value = window.getTitle();
return;
}
case +TITLE:
{
window.setTitle((String) value);
return;
}
case STARTED:
{
window.setClosable(false);
return;
}
case COMPLETE:
{
window.setClosable(true);
return;
}
case DISPOSE:
{
window.setDefaultCloseOperation(JInternalFrame.DISPOSE_ON_CLOSE);
if (warningArea == null || !window.isVisible()) {
window.dispose();
}
return;
}
}
}
/*
* Si la tâche spécifiée n'est aucune des tâches énumérées ci-haut,
* on supposera que l'on voulait afficher un message d'avertissement.
*/
if (warningArea == null) {
final JTextArea warningArea = new JTextArea();
final JScrollPane scroll = new JScrollPane(warningArea);
final JPanel namedArea = new JPanel(new BorderLayout());
ProgressWindow.this.warningArea = warningArea;
warningArea.setFont(Font.getFont("Monospaced"));
warningArea.setEditable(false);
namedArea.setBorder(BorderFactory.createEmptyBorder(0, HMARGIN, VMARGIN, HMARGIN));
namedArea.add(new JLabel(getString(VocabularyKeys.WARNING)), BorderLayout.NORTH);
namedArea.add(scroll, BorderLayout.CENTER);
content.add(namedArea, BorderLayout.CENTER);
if (window instanceof JDialog) {
final JDialog window = (JDialog) ProgressWindow.this.window;
window.setResizable(true);
} else {
final JInternalFrame window = (JInternalFrame) ProgressWindow.this.window;
window.setResizable(true);
}
window.setSize(WIDTH, HEIGHT + WARNING_HEIGHT);
window.setVisible(true); // Seems required in order to force relayout.
}
final JTextArea warningArea = (JTextArea) ProgressWindow.this.warningArea;
warningArea.append((String) value);
}
}
/**
* Adjusts the allocation given to the view to be a suitable allocation for a text field. If the
* view has been allocated more than the preferred span vertically, the allocation is changed to
* be centered vertically. Horizontally the view is adjusted according to the horizontal alignment
* property set on the associated JTextField (if that is the type of the hosting component).
*
* @param a the allocation given to the view, which may need to be adjusted.
* @return the allocation that the superclass should use.
*/
protected Shape adjustAllocation(Shape a) {
if (a != null) {
Rectangle bounds = a.getBounds();
int vspan = (int) getPreferredSpan(Y_AXIS);
int hspan = (int) getPreferredSpan(X_AXIS);
if (bounds.height != vspan) {
int slop = bounds.height - vspan;
bounds.y += slop / 2;
bounds.height -= slop;
}
// horizontal adjustments
Component c = getContainer();
if (c instanceof JTextField) {
JTextField field = (JTextField) c;
BoundedRangeModel vis = field.getHorizontalVisibility();
int max = Math.max(hspan, bounds.width);
int value = vis.getValue();
int extent = Math.min(max, bounds.width - 1);
if ((value + extent) > max) {
value = max - extent;
}
vis.setRangeProperties(value, extent, vis.getMinimum(), max, false);
if (hspan < bounds.width) {
// horizontally align the interior
int slop = bounds.width - 1 - hspan;
int align = ((JTextField) c).getHorizontalAlignment();
if (Utilities.isLeftToRight(c)) {
if (align == LEADING) {
align = LEFT;
} else if (align == TRAILING) {
align = RIGHT;
}
} else {
if (align == LEADING) {
align = RIGHT;
} else if (align == TRAILING) {
align = LEFT;
}
}
switch (align) {
case SwingConstants.CENTER:
bounds.x += slop / 2;
bounds.width -= slop;
break;
case SwingConstants.RIGHT:
bounds.x += slop;
bounds.width -= slop;
break;
}
} else {
// adjust the allocation to match the bounded range.
bounds.width = hspan;
bounds.x -= vis.getValue();
}
}
return bounds;
}
return null;
}