com.jidesoft.swing.JideSplitPaneDivider Maven / Gradle / Ivy
/*
* @(#)JideSplitPaneDivider.java
*
* Copyright 2002 JIDE Software Inc. All rights reserved.
*/
package com.jidesoft.swing;
import com.jidesoft.plaf.UIDefaultsLookup;
import com.jidesoft.plaf.basic.Painter;
import com.jidesoft.utils.PortingUtils;
import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.event.MouseInputAdapter;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
/**
* Divider used by JideSplitPane.
*/
public class JideSplitPaneDivider extends JPanel
implements PropertyChangeListener {
/**
* Handles mouse dragging message to do the actual dragging.
*/
protected DragController _dragger;
/**
* Size of the divider.
*/
protected int _dividerSize = UIDefaultsLookup.getInt("JideSplitPane.dividerSize"); // default - SET TO 0???
/**
* JideSplitPane the receiver is contained in.
*/
protected JideSplitPane _jideSplitPane;
/**
* Handles mouse events from both this class, and the split pane. Mouse events are handled for the JideSplitPane
* since you want to be able to drag when clicking on the border of the divider, which is not drawn by the divider.
*/
protected MouseHandler _mouseHandler;
/**
* Orientation of the JideSplitPane.
*/
protected int _orientation;
/**
* Cursor used for HORIZONTAL_SPLIT split panes.
*/
static final Cursor HORIZONTAL_CURSOR =
JideCursors.getPredefinedCursor(JideCursors.HSPLIT_CURSOR);
/**
* Cursor used for VERTICAL_SPLIT split panes.
*/
static final Cursor VERTICAL_CURSOR =
JideCursors.getPredefinedCursor(JideCursors.VSPLIT_CURSOR);
/**
* Default cursor.
*/
static final Cursor DEFAULT_CURSOR = Cursor.getDefaultCursor();
private Painter _gripperPainter;
/**
* Creates an instance of BasicJideSplitPaneDivider. Registers this instance for mouse events and mouse dragged
* events.
*
* @param splitPane the JideSplitPane.
*/
public JideSplitPaneDivider(JideSplitPane splitPane) {
setJideSplitPane(splitPane);
_orientation = _jideSplitPane.getOrientation();
// get divider size from JideSplitPane
setDividerSize(splitPane.getDividerSize());
setDefaultResizeCursor();
setBackground(UIDefaultsLookup.getColor("JideSplitPaneDivider.background"));
setBorder(UIDefaultsLookup.getBorder("JideSplitPaneDivider.border"));
if (_jideSplitPane.isOneTouchExpandable()) {
oneTouchExpandableChanged();
}
_gripperPainter = (Painter) UIDefaultsLookup.get("JideSplitPaneDivider.gripperPainter");
setOpaque(false);
setLayout(null);
}
public void setDefaultResizeCursor() {
setCursor((_orientation == JideSplitPane.HORIZONTAL_SPLIT) ?
HORIZONTAL_CURSOR : VERTICAL_CURSOR);
}
/**
* Gets the JideSplitPane.
*
* @return the JideSplitPane
*/
public JideSplitPane getJideSplitPane() {
return _jideSplitPane;
}
/**
* Sets the JideSplitPane that is using this divider.
*
* @param splitPane the JideSplitPane.
*/
public void setJideSplitPane(JideSplitPane splitPane) {
uninstallListeners();
_jideSplitPane = splitPane;
installListeners();
}
private void installListeners() {
if (_jideSplitPane != null) {
if (_mouseHandler == null) {
_mouseHandler = createMouseHandler();
}
_jideSplitPane.addMouseListener(_mouseHandler);
_jideSplitPane.addMouseMotionListener(_mouseHandler);
addMouseListener(_mouseHandler);
addMouseMotionListener(_mouseHandler);
_jideSplitPane.addPropertyChangeListener(this);
}
}
private void uninstallListeners() {
if (_jideSplitPane != null) {
_jideSplitPane.removePropertyChangeListener(this);
if (_mouseHandler != null) {
_jideSplitPane.removeMouseListener(_mouseHandler);
_jideSplitPane.removeMouseMotionListener(_mouseHandler);
removeMouseListener(_mouseHandler);
removeMouseMotionListener(_mouseHandler);
_mouseHandler = null;
}
}
}
protected MouseHandler createMouseHandler() {
return new MouseHandler();
}
/**
* Sets the size of the divider to newSize. That is the width if the split pane is
* HORIZONTAL_SPLIT, or the height of VERTICAL_SPLIT.
*
* @param newSize the new divider size.
*/
public void setDividerSize(int newSize) {
_dividerSize = newSize;
}
/**
* Returns the size of the divider, that is the width if the split pane is HORIZONTAL_SPLIT, or the height of
* VERTICAL_SPLIT.
*
* @return the divider size.
*/
public int getDividerSize() {
return _dividerSize;
}
/**
* Returns dividerSize x dividerSize
*/
@Override
public Dimension getPreferredSize() {
return new Dimension(getDividerSize(), getDividerSize());
}
/**
* Returns dividerSize x dividerSize
*/
@Override
public Dimension getMinimumSize() {
return getPreferredSize();
}
/**
* Property change event, presumably from the JideSplitPane, will message updateOrientation if necessary.
*/
public void propertyChange(PropertyChangeEvent e) {
if (e.getSource() == _jideSplitPane) {
if (JideSplitPane.ORIENTATION_PROPERTY.equals(e.getPropertyName())) {
_orientation = _jideSplitPane.getOrientation();
setCursor((_orientation == JideSplitPane.HORIZONTAL_SPLIT) ?
HORIZONTAL_CURSOR : VERTICAL_CURSOR);
invalidate();
validate();
}
else if (JideSplitPane.ONE_TOUCH_EXPANDABLE_PROPERTY.equals(e.getPropertyName())) {
setDividerSize(_jideSplitPane.getDividerSize());
oneTouchExpandableChanged();
}
else if (JideSplitPane.DIVIDER_SIZE_PROPERTY.equals(e.getPropertyName())) {
setDividerSize(_jideSplitPane.getDividerSize());
}
else if (JideSplitPane.GRIPPER_PROPERTY.equals(e.getPropertyName())) {
repaint();
}
}
}
/**
* Resets the UI property to a value from the current look and feel. JComponent subclasses must
* override this method like this:
*
* public void updateUI() {
* setUI((SliderUI)UIManager.getUI(this);
* }
*
*
* @see #setUI
* @see UIManager#getLookAndFeel
* @see UIManager#getUI
*/
@Override
public void updateUI() {
super.updateUI();
setBackground(UIDefaultsLookup.getColor("JideSplitPaneDivider.background"));
setBorder(UIDefaultsLookup.getBorder("JideSplitPaneDivider.border"));
_gripperPainter = (Painter) UIDefaultsLookup.get("JideSplitPaneDivider.gripperPainter");
}
/**
* Paints the divider.
*/
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
// Paint the border.
Border border = getBorder();
Dimension size = getSize();
if (isOpaque()) {
g.setColor(getBackground());
g.fillRect(0, 0, size.width, size.height);
}
if (border != null) {
border.paintBorder(this, g, 0, 0, size.width, size.height);
}
if (_jideSplitPane.isShowGripper()) {
Rectangle rect = new Rectangle(size);
if (_gripperPainter != null) {
if (rect.width > rect.height) {
// rect.x = rect.x + rect.width / 2 - 10;
// rect.width = 22;
_gripperPainter.paint(this, g, rect, SwingConstants.VERTICAL, 0);
}
else {
// rect.y = rect.y + rect.height / 2 - 10;
// rect.height = 22;
_gripperPainter.paint(this, g, rect, SwingConstants.HORIZONTAL, 0);
}
}
else {
rect.x++;
rect.y++;
JideSwingUtilities.drawGrip(g, rect, 9, UIDefaultsLookup.getInt("JideSplitPane.dividerSize") / 3);
}
}
}
/**
* Message to prepare for dragging. This messages the BasicJideSplitPaneUI with startDragging.
*/
protected void prepareForDragging() {
_jideSplitPane.startDragging(this);
}
protected void dragDividerTo(int location) {
_jideSplitPane.dragDividerTo(this, location);
/*
* Update the variables used by the one-touch expand/collapse buttons.
*/
_currentState = DEFAULT_STATE;
int indexOfDivider = _jideSplitPane.indexOfDivider(JideSplitPaneDivider.this);
_lastPosition = _jideSplitPane.getDividerLocation(indexOfDivider);
}
protected void finishDraggingTo(int location) {
_jideSplitPane.finishDraggingTo(this, location);
}
protected int getPreviousDividerLocation(boolean ignoreVisibility, boolean reversed) {
return _jideSplitPane.getPreviousDividerLocation(this, ignoreVisibility, reversed);
}
protected int getNextDividerLocation(boolean ignoreVisibility, boolean reversed) {
return _jideSplitPane.getNextDividerLocation(this, ignoreVisibility, reversed);
}
/**
* Gets the first component. This divider is installed between two components. The first component is usually the
* one on the left or on the top.
*
* @param ignoreVisibility true to not check if the component is visible.
* @return the first component
*/
public Component getFirstComponent(boolean ignoreVisibility) {
int index = _jideSplitPane.indexOf(this);
if (index - 1 >= 0) {
for (int i = (index - 1); i >= 0; i--) {
if (ignoreVisibility || _jideSplitPane.getComponent(i).isVisible()) {
return _jideSplitPane.getComponent(i);
}
}
// return an invisible component in lieu of null
return _jideSplitPane.getComponent(index - 1);
}
else {
throw new IndexOutOfBoundsException("There is no component before divider " + index);
}
}
/**
* Gets the second component. This divider is installed between two components. The second component is usually the
* one on the right or on the bottom.
*
* @param ignoreVisibility true to not check if the component is visible.
* @return the first component
*/
public Component getSecondComponent(boolean ignoreVisibility) {
int index = _jideSplitPane.indexOf(this);
if (index + 1 < _jideSplitPane.getComponentCount()) {
for (int i = (index + 1); i >= 0; i++) {
if (ignoreVisibility || _jideSplitPane.getComponent(i).isVisible()) {
return _jideSplitPane.getComponent(i);
}
}
// return an invisible component in lieu of null
return _jideSplitPane.getComponent(index + 1);
}
else {
throw new IndexOutOfBoundsException("There is no component before divider " + index);
}
}
/**
* MouseHandler is responsible for converting mouse events (released, dragged...) into the appropriate
* DragController methods.
*
*/
protected class MouseHandler extends MouseInputAdapter {
/**
* Starts the dragging session by creating the appropriate instance of DragController.
*/
@Override
public void mousePressed(MouseEvent e) {
if ((e.getSource() == JideSplitPaneDivider.this/*||
e.getSource() == _jideSplitPane*/) && _dragger == null && _jideSplitPane.isEnabled() && _jideSplitPane.isDragResizable()) {
if (getFirstComponent(true) != null &&
getSecondComponent(true) != null) {
if (_orientation == JideSplitPane.HORIZONTAL_SPLIT) {
_dragger = new DragController(e);
}
else {
_dragger = new VerticalDragController(e);
}
if (!_dragger.isValid()) {
_dragger = null;
}
else {
prepareForDragging();
_dragger.continueDrag(e);
}
}
e.consume();
}
}
/**
* If dragger is not null it is messaged with completeDrag.
*/
@Override
public void mouseReleased(MouseEvent e) {
if (_dragger != null) {
if (e.getSource() == _jideSplitPane) {
_dragger.completeDrag(e.getX(), e.getY());
}
else if (e.getSource() == JideSplitPaneDivider.this) {
Point ourLoc = getLocation();
_dragger.completeDrag(e.getX() + ourLoc.x, e.getY() + ourLoc.y);
}
_dragger = null;
e.consume();
}
}
//
// MouseMotionListener
//
/**
* If dragger is not null it is messaged with continueDrag.
*/
@Override
public void mouseDragged(MouseEvent e) {
if (_dragger != null) {
if (e.getSource() == _jideSplitPane) {
_dragger.continueDrag(e.getX(), e.getY());
}
else if (e.getSource() == JideSplitPaneDivider.this) {
Point ourLoc = getLocation();
_dragger.continueDrag(e.getX() + ourLoc.x, e.getY() + ourLoc.y);
}
e.consume();
}
}
}
/**
* Handles the events during a dragging session for a HORIZONTAL_SPLIT oriented split pane. This continually
* messages dragDividerTo and then when done messages finishDraggingTo. When an instance
* is created it should be messaged with isValid to insure that dragging can happen (dragging won't be
* allowed if the two views can not be resized).
*/
protected class DragController {
/**
* Initial location of the divider.
*/
int initialLocation;
/**
* Maximum and minimum positions to drag to.
*/
int maxLocation, minLocation;
/**
* Initial location the mouse down happened at.
*/
int offset;
protected DragController(MouseEvent e) {
ComponentOrientation o = getComponentOrientation();
boolean ltr = o.isLeftToRight();
boolean reversed = !ltr && _jideSplitPane.getOrientation() == JideSplitPane.HORIZONTAL_SPLIT;
Component leftC = reversed ? getSecondComponent(false) : getFirstComponent(false);
Component rightC = reversed ? getFirstComponent(false) : getSecondComponent(false);
initialLocation = getLocation().x;
if (e.getSource() == JideSplitPaneDivider.this) {
offset = e.getX();
}
else { // splitPane
offset = e.getX() - initialLocation;
}
if (leftC == null || rightC == null || offset < -1 ||
offset >= _jideSplitPane.getSize().width) {
// Don't allow dragging.
maxLocation = -1;
}
else {
int index = _jideSplitPane.indexOf(JideSplitPaneDivider.this);
int modelLeftWidth = 0;
int modelRightWidth = 0;
for (int i = 0; i < index; i++) {
Component component = _jideSplitPane.getComponent(i);
if (component instanceof JideSplitPaneDivider) {
modelLeftWidth += component.getSize().getWidth();
}
else if (component.isVisible()) {
if (((JideBoxLayout) _jideSplitPane.getLayout()).getConstraintMap().get(component) == JideBoxLayout.FIX) {
modelLeftWidth += component.getWidth();
}
else {
modelLeftWidth += component.getMinimumSize().getWidth();
}
}
}
for (int i = index + 1; i < _jideSplitPane.getComponentCount(); i++) {
Component component = _jideSplitPane.getComponent(i);
if (component instanceof JideSplitPaneDivider) {
modelRightWidth += component.getSize().getWidth();
}
else if (component.isVisible()) {
if (((JideBoxLayout) _jideSplitPane.getLayout()).getConstraintMap().get(component) == JideBoxLayout.FIX) {
modelRightWidth += component.getWidth();
}
else {
modelRightWidth += component.getMinimumSize().getWidth();
}
}
}
minLocation = reversed ? modelRightWidth : modelLeftWidth;
maxLocation = _jideSplitPane.getWidth() - ((reversed ? modelLeftWidth : modelRightWidth) + (int) getSize().getWidth());
if (maxLocation < minLocation) minLocation = maxLocation = 0;
}
}
/**
* Returns true if the dragging session is valid.
*
* @return true or false.
*/
protected boolean isValid() {
return (maxLocation > 0);
}
/**
* Returns the new position to put the divider at based on the passed in MouseEvent.
*
* @param e the mouse event.
* @return the position of the mouse event after considering the max and min size it is allowed.
*/
protected int positionForMouseEvent(MouseEvent e) {
int newX = (e.getSource() == JideSplitPaneDivider.this) ? (e.getX() + getLocation().x) : e.getX();
newX = Math.min(maxLocation, Math.max(minLocation, newX - offset));
if (_jideSplitPane.getDividerStepSize() != 0) {
int distanceFromCurrent = newX - getX();
newX -= (distanceFromCurrent % _jideSplitPane.getDividerStepSize());
}
return newX;
}
/**
* Returns the x argument, since this is used for horizontal splits.
*
* @param x x position
* @param y y position
* @return the actual position after considering the max and min size it is allowed.
*/
protected int getNeededLocation(int x, int y) {
int newX;
newX = Math.min(maxLocation, Math.max(minLocation, x - offset));
if (_jideSplitPane.getDividerStepSize() != 0) {
int distanceFromCurrent = newX - getX();
newX -= (distanceFromCurrent % _jideSplitPane.getDividerStepSize());
}
return newX;
}
protected void continueDrag(int newX, int newY) {
dragDividerTo(getNeededLocation(newX, newY));
}
/**
* Messages dragDividerTo with the new location for the mouse event.
*
* @param e the mouse event.
*/
protected void continueDrag(MouseEvent e) {
dragDividerTo(positionForMouseEvent(e));
}
protected void completeDrag(int x, int y) {
finishDraggingTo(getNeededLocation(x, y));
}
/**
* Messages finishDraggingTo with the new location for the mouse event.
*
* @param e the mouse event.
*/
protected void completeDrag(MouseEvent e) {
finishDraggingTo(positionForMouseEvent(e));
}
} // End of BasicJideSplitPaneDivider.DragController
/**
* Handles the events during a dragging session for a VERTICAL_SPLIT oriented split pane. This continually messages
* dragDividerTo and then when done messages finishDraggingTo. When an instance is created
* it should be messaged with isValid to insure that dragging can happen (dragging won't be allowed if
* the two views can not be resized).
*/
protected class VerticalDragController extends DragController {
/* Vertical DragControllers are now in terms of y, not x. */
protected VerticalDragController(MouseEvent e) {
super(e);
Component leftC = getFirstComponent(false);
Component rightC = getSecondComponent(false);
initialLocation = getLocation().y;
if (e.getSource() == JideSplitPaneDivider.this) {
offset = e.getY();
}
else { // splitPane
offset = e.getY() - initialLocation;
}
if (leftC == null || rightC == null || offset < -1 ||
offset >= _jideSplitPane.getSize().height) {
// Don't allow dragging.
maxLocation = -1;
}
else {
int index = _jideSplitPane.indexOf(JideSplitPaneDivider.this);
int modelUpHeight = 0;
int modelDownHeight = 0;
for (int i = 0; i < index; i++) {
Component component = _jideSplitPane.getComponent(i);
if (component instanceof JideSplitPaneDivider) {
modelUpHeight += component.getSize().getHeight();
}
else if (component.isVisible()) {
if (((JideBoxLayout) _jideSplitPane.getLayout()).getConstraintMap().get(component) == JideBoxLayout.FIX) {
modelUpHeight += component.getHeight();
}
else {
modelUpHeight += component.getMinimumSize().getHeight();
}
}
}
for (int i = index + 1; i < _jideSplitPane.getComponentCount(); i++) {
Component component = _jideSplitPane.getComponent(i);
if (component instanceof JideSplitPaneDivider) {
modelDownHeight += component.getSize().getHeight();
}
else if (component.isVisible()) {
if (((JideBoxLayout) _jideSplitPane.getLayout()).getConstraintMap().get(component) == JideBoxLayout.FIX) {
modelDownHeight += component.getHeight();
}
else {
modelDownHeight += component.getMinimumSize().getHeight();
}
}
}
minLocation = modelUpHeight;
maxLocation = _jideSplitPane.getHeight() - modelDownHeight - (int) getSize().getHeight();
if (maxLocation < minLocation) minLocation = maxLocation = 0;
}
}
/**
* Returns the y argument, since this is used for vertical splits.
*/
@Override
protected int getNeededLocation(int x, int y) {
int newY;
newY = Math.min(maxLocation, Math.max(minLocation, y - offset));
if (_jideSplitPane.getDividerStepSize() != 0) {
int distanceFromCurrent = newY - getY();
newY -= (distanceFromCurrent % _jideSplitPane.getDividerStepSize());
}
return newY;
}
/**
* Returns the new position to put the divider at based on the passed in MouseEvent.
*/
@Override
protected int positionForMouseEvent(MouseEvent e) {
int newY = (e.getSource() == JideSplitPaneDivider.this) ? (e.getY() + getLocation().y) : e.getY();
newY = Math.min(maxLocation, Math.max(minLocation, newY - offset));
if (_jideSplitPane.getDividerStepSize() != 0) {
int distanceFromCurrent = newY - getY();
newY -= (distanceFromCurrent % _jideSplitPane.getDividerStepSize());
}
return newY;
}
} // End of BasicSplitPaneDividier.VerticalDragController
/*
* Added on 05/14/2008 in response to http://www.jidesoft.com/forum/viewtopic.php?p=26074#26074,
* http://www.jidesoft.com/forum/viewtopic.php?p=5148#5148 and
* http://www.jidesoft.com/forum/viewtopic.php?p=23403#23403.
*
* The addition below provides the option of adding a one-touch button which is capable of expanding/collapsing the
* split pane (in one click of the mouse).
*
* @see #setOneTouchExpandable(boolean)
*/
/**
* Indicates that the pane of the left of this component has been collapse by the one-touch button.
*/
public static final int COLLAPSED_STATE = 0;
/**
* Indicates that this divider has not been expanded or collapsed.
*/
public static final int DEFAULT_STATE = 1;
/**
* Indicates that the pane of the right of this component has been collapse by the one-touch button. Hence, the pane
* on the left has been "expanded".
*/
public static final int EXPANDED_STATE = 2;
/**
* Indicates the current state of this divider. Either expanded, collapsed or in its default state.
*/
private int _currentState = DEFAULT_STATE;
/**
* Button for quickly toggling the left component.
*/
protected JButton _leftButton = null;
/**
* Button for quickly toggling the right component.
*/
protected JButton _rightButton = null;
/**
* Used to paint the triangle on the one-touch buttons.
*/
private int _triangleSize = 5;
/**
* Used as the one-touch button's width.
*/
private int _buttonWidth = 5;
/**
* Used as the one-touch button's height.
*/
private int _buttonHeight = 10;
/**
* The last non-expanded/collapsed position of the divider. We want to keep track of the dividers last position, so
* if a user collapses the pane on the right of this divider for example, pressing the expand button will revert the
* divider back to its original location - the last non-expanded/collapsed position.
*
* @see JideSplitPaneDivider.OneTouchActionHandler#actionPerformed
*/
private int _lastPosition;
/**
* Invoked when the oneTouchExpandable value of the JideSplitPane changes.
Responsible for creating the
* one-touch buttons and revalidating the UI.
*
* #see JideSplitePane#setOneTouchExpandable(boolean)
*/
protected void oneTouchExpandableChanged() {
if (_jideSplitPane.isOneTouchExpandable() && _leftButton == null) {
_leftButton = createLeftOneTouchButton();
if (_leftButton != null) {
_leftButton.addActionListener(new OneTouchActionHandler(true));
if (_orientation == JideSplitPane.HORIZONTAL_SPLIT) {
_leftButton.setBounds(1, 10, _buttonWidth, _buttonHeight);
}
else if (_orientation == JideSplitPane.VERTICAL_SPLIT) {
//noinspection SuspiciousNameCombination
_leftButton.setBounds(10, 1, _buttonHeight, _buttonWidth);
}
add(_leftButton);
}
}
if (_jideSplitPane.isOneTouchExpandable() && _rightButton == null) {
_rightButton = createRightOneTouchButton();
if (_rightButton != null) {
_rightButton.addActionListener(new OneTouchActionHandler(false));
if (_orientation == JideSplitPane.HORIZONTAL_SPLIT) {
_rightButton.setBounds(1, 25, _buttonWidth, _buttonHeight);
}
else if (_orientation == JideSplitPane.VERTICAL_SPLIT) {
//noinspection SuspiciousNameCombination
_rightButton.setBounds(25, 1, _buttonHeight, _buttonWidth);
}
add(_rightButton);
}
}
if (!(_jideSplitPane.isOneTouchExpandable()) && _leftButton != null) {
remove(_leftButton);
_leftButton = null;
}
if (!(_jideSplitPane.isOneTouchExpandable()) && _rightButton != null) {
remove(_rightButton);
_rightButton = null;
}
/*
* The one-touch buttons should completely collapse the pane in question; as such, all panes should have a
* their minimum sizes overridden whilst one-touch expandable is on.
*
* We fill the minimunSizes array with the current minimum size of each pane for restoration later.
*/
int paneCount = _jideSplitPane.getPaneCount();
if (_jideSplitPane.isOneTouchExpandable()) {
for (int i = 0; i < paneCount; i++) {
Component component = _jideSplitPane.getPaneAt(i);
PortingUtils.setMinimumSize(component, new Dimension(0, 0));
}
}
else {
for (int i = 0; i < paneCount; i++) {
Component component = _jideSplitPane.getPaneAt(i);
PortingUtils.setMinimumSize(component, null);
}
}
}
/**
* Builds the Button that can be used to collapse the component to the left/above this divider.
*
* @return a JButton instance used to collapse the component to the left/above this divider.
*/
protected JButton createLeftOneTouchButton() {
JButton b = new JButton() {
@Override
public void setBorder(Border b) {
}
@Override
public void paint(Graphics g) {
if (_jideSplitPane != null) {
g.setColor(JideSplitPaneDivider.this.getBackground());
if (isOpaque()) {
g.fillRect(0, 0, this.getWidth(), this.getHeight());
}
if (_jideSplitPane.getLeftOneTouchButtonImageIcon() != null) {
_jideSplitPane.getLeftOneTouchButtonImageIcon().paintIcon(this, g, 0, 0);
}
else if (_orientation == JideSplitPane.HORIZONTAL_SPLIT) {
/*
* If the split pane is horizontally split, paint the 'left' button.
*/
g.setColor(getDarkShadowColor());
int size = _triangleSize;
for (int i = 0; i < size; i++) {
g.drawLine(i, size - i, i, size + i);
}
}
else if (_orientation == JideSplitPane.VERTICAL_SPLIT) {
/*
* If the split pane is vertically split, paint an 'up' button.
*/
g.setColor(getDarkShadowColor());
int size = _triangleSize;
for (int i = 0; i < size; i++) {
g.drawLine(size - i, i, size + i, i);
}
}
}
}
@SuppressWarnings({"deprecation"})
@Override
public boolean isFocusTraversable() {
return false;
}
};
b.setMinimumSize(new Dimension(_buttonWidth, _buttonHeight));
b.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
b.setFocusPainted(false);
b.setBorderPainted(false);
b.setRequestFocusEnabled(false);
return b;
}
/**
* Gets the current collapse/expand state.
*
* The default value is DEFAULT_STATE when {@link com.jidesoft.swing.JideSplitPane#isOneTouchExpandable()} returns false.
* It could be EXPANDED_STATE or COLLAPSED_STATE when one touch expandable is activated.
*
* @return the current state
* @since 3.3.8
*/
public int getCurrentState() {
return _currentState;
}
/**
* Builds the rightButton that can be used to expand/collapse a split panes divider to the right.
*
* @return a JButton instance used to expand/collapse a split panes divider to the right.
*/
protected JButton createRightOneTouchButton() {
JButton b = new JButton() {
@Override
public void setBorder(Border b) {
}
@Override
public void paint(Graphics g) {
if (_jideSplitPane != null) {
g.setColor(JideSplitPaneDivider.this.getBackground());
if (isOpaque()) {
g.fillRect(0, 0, this.getWidth(), this.getHeight());
}
if (_jideSplitPane.getRightOneTouchButtonImageIcon() != null) {
_jideSplitPane.getRightOneTouchButtonImageIcon().paintIcon(this, g, 0, 0);
}
else if (_orientation == JideSplitPane.HORIZONTAL_SPLIT) {
/*
* If the split pane is horizontally split, paint the 'right' button.
*/
g.setColor(getDarkShadowColor());
int size = _triangleSize;
int j = 0;
for (int i = size - 1; i >= 0; i--) {
g.drawLine(j, size - i, j, size + i);
j++;
}
}
else if (_orientation == JideSplitPane.VERTICAL_SPLIT) {
/*
* If the split pane is vertically split, paint an 'down' button.
*/
g.setColor(getDarkShadowColor());
int size = _triangleSize;
int j = 0;
for (int i = size - 1; i >= 0; i--) {
g.drawLine(size - i, j, size + i, j);
j++;
}
}
}
}
@SuppressWarnings({"deprecation"})
@Override
public boolean isFocusTraversable() {
return false;
}
};
b.setMinimumSize(new Dimension(_buttonWidth, _buttonHeight));
b.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
b.setFocusPainted(false);
b.setBorderPainted(false);
b.setRequestFocusEnabled(false);
return b;
}
/**
* Returns a dark shadow color. This color is used to paint the left and right buttons graphics. It is based on the
* current Look and Feel. (And thus fits all look and Feels.)
*
* @return UIManager.getColor("controlDkShadow")
*/
protected Color getDarkShadowColor() {
return UIManager.getColor("controlDkShadow");
}
/**
* The actionListener that will listen for button presses on either the leftButton or the rightButton. This class is
* responsible for one-touch expanding/collapsing of the divider.
*/
protected class OneTouchActionHandler implements ActionListener {
/**
* If collapse is true, move the divider to the left/top; otherwise, move the divider to the
* right/bottom.
*/
private boolean _collapse;
/**
* Constructs the handler responsible for expanding/collapsing the panes on either side of this divider.
*
* @param collapse true or false.
*/
public OneTouchActionHandler(boolean collapse) {
_collapse = collapse;
}
/**
* Called to collapse or expand this divider.
*/
public void actionPerformed(ActionEvent e) {
/*
* If _collapse is true, move the divider to the left/top; otherwise, move the divider to the right/bottom.
*/
/*
* If the left button is pressed. (If _collapse is true.)
*/
if (_collapse) {
if (_currentState == COLLAPSED_STATE) {
int indexOfDivider = _jideSplitPane.indexOfDivider(JideSplitPaneDivider.this);
int dividerPosition = _jideSplitPane.getDividerLocation(indexOfDivider);
int previousDividerPosition = getPreviousDividerLocation(true, false);
if (dividerPosition != previousDividerPosition) {
_currentState = DEFAULT_STATE;
}
}
if (_currentState == EXPANDED_STATE) {
_jideSplitPane.setDividerLocation(JideSplitPaneDivider.this, _lastPosition);
_currentState = DEFAULT_STATE;
}
else if (_currentState == DEFAULT_STATE) {
int indexOfDivider = _jideSplitPane.indexOfDivider(JideSplitPaneDivider.this);
_lastPosition = _jideSplitPane.getDividerLocation(indexOfDivider);
int loc = getPreviousDividerLocation(true, false);
_jideSplitPane.setDividerLocation(JideSplitPaneDivider.this, loc);
_currentState = COLLAPSED_STATE;
}
}
/*
* If the right button is pressed. (If _collapse is false.)
*/
else {
if (_currentState == EXPANDED_STATE) {
int indexOfDivider = _jideSplitPane.indexOfDivider(JideSplitPaneDivider.this);
int dividerPosition = _jideSplitPane.getDividerLocation(indexOfDivider);
int nextDividerPosition = getNextDividerLocation(true, false);
if (dividerPosition != nextDividerPosition) {
_currentState = DEFAULT_STATE;
}
}
if (_currentState == COLLAPSED_STATE) {
_jideSplitPane.setDividerLocation(JideSplitPaneDivider.this, _lastPosition);
_currentState = DEFAULT_STATE;
}
else if (_currentState == DEFAULT_STATE) {
int indexOfDivider = _jideSplitPane.indexOfDivider(JideSplitPaneDivider.this);
_lastPosition = _jideSplitPane.getDividerLocation(indexOfDivider);
int loc = getNextDividerLocation(true, false);
_jideSplitPane.setDividerLocation(JideSplitPaneDivider.this, loc);
_currentState = EXPANDED_STATE;
}
}
}
}
/**
* Collapses the divider to the left side (or to the top if vertically).
*/
public void collapse() {
if (_leftButton != null) {
_leftButton.doClick();
}
else {
new OneTouchActionHandler(true).actionPerformed(null);
}
}
/**
* Expands the divider to the right side (or to the bottom if vertically).
*/
public void expand() {
if (_rightButton != null) {
_rightButton.doClick();
}
else {
new OneTouchActionHandler(false).actionPerformed(null);
}
}
/*
* End of one-touch expand/collapse addition.
*
* Added on 05/14/2008.
*/
}
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