+package net.miginfocom.swing;
+/*
+ * License (BSD):
+ * ==============
+ *
+ * Copyright (c) 2004, Mikael Grev, MiG InfoCom AB. (miglayout (at) miginfocom (dot) com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * Redistributions of source code must retain the above copyright notice, this list
+ * of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice, this
+ * list of conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution.
+ * Neither the name of the MiG InfoCom AB nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * @version 1.0
+ * @author Mikael Grev, MiG InfoCom AB
+ * Date: 2006-sep-08
+ */
+
+import net.miginfocom.layout.*;
+
+import javax.swing.*;
+import javax.swing.Timer;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.*;
+import java.util.*;
+
+/** A very flexible layout manager.
+ * <p>
+ * Read the documentation that came with this layout manager for information on usage.
+ */
+public class MigLayout implements LayoutManager2, Externalizable
+{
+ // ******** Instance part ********
+
+ /** The component to string constraints mappings.
+ */
+ private final Map<Component, Object> scrConstrMap = new IdentityHashMap<Component, Object>(8);
+
+ /** Hold the serializable text representation of the constraints.
+ */
+ private Object layoutConstraints = "", colConstraints = "", rowConstraints = ""; // Should never be null!
+
+ // ******** Transient part ********
+
+ private transient ContainerWrapper cacheParentW = null;
+
+ private transient final Map<ComponentWrapper, CC> ccMap = new HashMap<ComponentWrapper, CC>(8);
+ private transient javax.swing.Timer debugTimer = null;
+
+ private transient LC lc = null;
+ private transient AC colSpecs = null, rowSpecs = null;
+ private transient Grid grid = null;
+ private transient int lastModCount = PlatformDefaults.getModCount();
+ private transient int lastHash = -1;
+ private transient Dimension lastInvalidSize = null;
+ private transient boolean lastWasInvalid = false; // Added in 3.7.1. May have regressions
+ private transient Dimension lastParentSize = null;
+
+ private transient ArrayList<LayoutCallback> callbackList = null;
+
+ private transient boolean dirty = true;
+
+ /** Constructor with no constraints.
+ */
+ public MigLayout()
+ {
+ this("", "", "");
+ }
+
+ /** Constructor.
+ * @param layoutConstraints The constraints that concern the whole layout. <code>null</code> will be treated as "".
+ */
+ public MigLayout(String layoutConstraints)
+ {
+ this(layoutConstraints, "", "");
+ }
+
+ /** Constructor.
+ * @param layoutConstraints The constraints that concern the whole layout. <code>null</code> will be treated as "".
+ * @param colConstraints The constraints for the columns in the grid. <code>null</code> will be treated as "".
+ */
+ public MigLayout(String layoutConstraints, String colConstraints)
+ {
+ this(layoutConstraints, colConstraints, "");
+ }
+
+ /** Constructor.
+ * @param layoutConstraints The constraints that concern the whole layout. <code>null</code> will be treated as "".
+ * @param colConstraints The constraints for the columns in the grid. <code>null</code> will be treated as "".
+ * @param rowConstraints The constraints for the rows in the grid. <code>null</code> will be treated as "".
+ */
+ public MigLayout(String layoutConstraints, String colConstraints, String rowConstraints)
+ {
+ setLayoutConstraints(layoutConstraints);
+ setColumnConstraints(colConstraints);
+ setRowConstraints(rowConstraints);
+ }
+
+ /** Constructor.
+ * @param layoutConstraints The constraints that concern the whole layout. <code>null</code> will be treated as an empty constraint.
+ */
+ public MigLayout(LC layoutConstraints)
+ {
+ this(layoutConstraints, null, null);
+ }
+
+ /** Constructor.
+ * @param layoutConstraints The constraints that concern the whole layout. <code>null</code> will be treated as an empty constraint.
+ * @param colConstraints The constraints for the columns in the grid. <code>null</code> will be treated as an empty constraint.
+ */
+ public MigLayout(LC layoutConstraints, AC colConstraints)
+ {
+ this(layoutConstraints, colConstraints, null);
+ }
+
+ /** Constructor.
+ * @param layoutConstraints The constraints that concern the whole layout. <code>null</code> will be treated as an empty constraint.
+ * @param colConstraints The constraints for the columns in the grid. <code>null</code> will be treated as an empty constraint.
+ * @param rowConstraints The constraints for the rows in the grid. <code>null</code> will be treated as an empty constraint.
+ */
+ public MigLayout(LC layoutConstraints, AC colConstraints, AC rowConstraints)
+ {
+ setLayoutConstraints(layoutConstraints);
+ setColumnConstraints(colConstraints);
+ setRowConstraints(rowConstraints);
+ }
+
+ /** Returns layout constraints either as a <code>String</code> or {@link net.miginfocom.layout.LC} depending what was sent in
+ * to the constructor or set with {@link #setLayoutConstraints(Object)}.
+ * @return The layout constraints either as a <code>String</code> or {@link net.miginfocom.layout.LC} depending what was sent in
+ * to the constructor or set with {@link #setLayoutConstraints(Object)}. Never <code>null</code>.
+ */
+ public Object getLayoutConstraints()
+ {
+ return layoutConstraints;
+ }
+
+ /** Sets the layout constraints for the layout manager instance as a String.
+ * <p>
+ * See the class JavaDocs for information on how this string is formatted.
+ * @param constr The layout constraints as a String or {@link net.miginfocom.layout.LC} representation. <code>null</code> is converted to <code>""</code> for storage.
+ * @throws RuntimeException if the constraint was not valid.
+ */
+ public void setLayoutConstraints(Object constr)
+ {
+ if (constr == null || constr instanceof String) {
+ constr = ConstraintParser.prepare((String) constr);
+ lc = ConstraintParser.parseLayoutConstraint((String) constr);
+ } else if (constr instanceof LC) {
+ lc = (LC) constr;
+ } else {
+ throw new IllegalArgumentException("Illegal constraint type: " + constr.getClass().toString());
+ }
+ layoutConstraints = constr;
+ dirty = true;
+ }
+
+ /** Returns the column layout constraints either as a <code>String</code> or {@link net.miginfocom.layout.AC}.
+ * @return The column constraints either as a <code>String</code> or {@link net.miginfocom.layout.AC} depending what was sent in
+ * to the constructor or set with {@link #setColumnConstraints(Object)}. Never <code>null</code>.
+ */
+ public Object getColumnConstraints()
+ {
+ return colConstraints;
+ }
+
+ /** Sets the column layout constraints for the layout manager instance as a String.
+ * <p>
+ * See the class JavaDocs for information on how this string is formatted.
+ * @param constr The column layout constraints as a String or {@link net.miginfocom.layout.AC} representation. <code>null</code> is converted to <code>""</code> for storage.
+ * @throws RuntimeException if the constraint was not valid.
+ */
+ public void setColumnConstraints(Object constr)
+ {
+ if (constr == null || constr instanceof String) {
+ constr = ConstraintParser.prepare((String) constr);
+ colSpecs = ConstraintParser.parseColumnConstraints((String) constr);
+ } else if (constr instanceof AC) {
+ colSpecs = (AC) constr;
+ } else {
+ throw new IllegalArgumentException("Illegal constraint type: " + constr.getClass().toString());
+ }
+ colConstraints = constr;
+ dirty = true;
+ }
+
+ /** Returns the row layout constraints either as a <code>String</code> or {@link net.miginfocom.layout.AC}.
+ * @return The row constraints either as a <code>String</code> or {@link net.miginfocom.layout.AC} depending what was sent in
+ * to the constructor or set with {@link #setRowConstraints(Object)}. Never <code>null</code>.
+ */
+ public Object getRowConstraints()
+ {
+ return rowConstraints;
+ }
+
+ /** Sets the row layout constraints for the layout manager instance as a String.
+ * <p>
+ * See the class JavaDocs for information on how this string is formatted.
+ * @param constr The row layout constraints as a String or {@link net.miginfocom.layout.AC} representation. <code>null</code> is converted to <code>""</code> for storage.
+ * @throws RuntimeException if the constraint was not valid.
+ */
+ public void setRowConstraints(Object constr)
+ {
+ if (constr == null || constr instanceof String) {
+ constr = ConstraintParser.prepare((String) constr);
+ rowSpecs = ConstraintParser.parseRowConstraints((String) constr);
+ } else if (constr instanceof AC) {
+ rowSpecs = (AC) constr;
+ } else {
+ throw new IllegalArgumentException("Illegal constraint type: " + constr.getClass().toString());
+ }
+ rowConstraints = constr;
+ dirty = true;
+ }
+
+ /** Returns a shallow copy of the constraints map.
+ * @return A shallow copy of the constraints map. Never <code>null</code>.
+ */
+ public Map<Component, Object> getConstraintMap()
+ {
+ return new IdentityHashMap<Component, Object>(scrConstrMap);
+ }
+
+ /** Sets the constraints map.
+ * @param map The map. Will be copied.
+ */
+ public void setConstraintMap(Map<Component, Object> map)
+ {
+ scrConstrMap.clear();
+ ccMap.clear();
+ for (Map.Entry<Component, Object> e : map.entrySet())
+ setComponentConstraintsImpl(e.getKey(), e.getValue(), true);
+ }
+
+ /** Returns the component constraints as a String representation. This string is the exact string as set with {@link #setComponentConstraints(java.awt.Component, Object)}
+ * or set when adding the component to the parent component.
+ * <p>
+ * See the class JavaDocs for information on how this string is formatted.
+ * @param comp The component to return the constraints for.
+ * @return The component constraints as a String representation or <code>null</code> if the component is not registered
+ * with this layout manager. The returned values is either a String or a {@link net.miginfocom.layout.CC}
+ * depending on what constraint was sent in when the component was added. May be <code>null</code>.
+ */
+ public Object getComponentConstraints(Component comp)
+ {
+ synchronized(comp.getParent().getTreeLock()) {
+ return scrConstrMap.get(comp);
+ }
+ }
+
+ /** Sets the component constraint for the component that already must be handled by this layout manager.
+ * <p>
+ * See the class JavaDocs for information on how this string is formatted.
+ * @param constr The component constraints as a String or {@link net.miginfocom.layout.CC}. <code>null</code> is ok.
+ * @param comp The component to set the constraints for.
+ * @throws RuntimeException if the constraint was not valid.
+ * @throws IllegalArgumentException If the component is not handling the component.
+ */
+ public void setComponentConstraints(Component comp, Object constr)
+ {
+ setComponentConstraintsImpl(comp, constr, false);
+ }
+
+ /** Sets the component constraint for the component that already must be handled by this layout manager.
+ * <p>
+ * See the class JavaDocs for information on how this string is formatted.
+ * @param constr The component constraints as a String or {@link net.miginfocom.layout.CC}. <code>null</code> is ok.
+ * @param comp The component to set the constraints for.
+ * @param noCheck Does not check if the component is handled if true
+ * @throws RuntimeException if the constraint was not valid.
+ * @throws IllegalArgumentException If the component is not handling the component.
+ */
+ private void setComponentConstraintsImpl(Component comp, Object constr, boolean noCheck)
+ {
+ Container parent = comp.getParent();
+ synchronized(parent != null ? parent.getTreeLock() : new Object()) { // 3.7.2. No sync if not added to a hierarchy. Defeats a NPE.
+ if (noCheck == false && scrConstrMap.containsKey(comp) == false)
+ throw new IllegalArgumentException("Component must already be added to parent!");
+
+ ComponentWrapper cw = new SwingComponentWrapper(comp);
+
+ if (constr == null || constr instanceof String) {
+ String cStr = ConstraintParser.prepare((String) constr);
+
+ scrConstrMap.put(comp, constr);
+ ccMap.put(cw, ConstraintParser.parseComponentConstraint(cStr));
+
+ } else if (constr instanceof CC) {
+
+ scrConstrMap.put(comp, constr);
+ ccMap.put(cw, (CC) constr);
+
+ } else {
+ throw new IllegalArgumentException("Constraint must be String or ComponentConstraint: " + constr.getClass().toString());
+ }
+
+ dirty = true;
+ }
+ }
+
+ /** Returns if this layout manager is currently managing this component.
+ * @param c The component to check. If <code>null</code> then <code>false</code> will be returned.
+ * @return If this layout manager is currently managing this component.
+ */
+ public boolean isManagingComponent(Component c)
+ {
+ return scrConstrMap.containsKey(c);
+ }
+
+ /** Adds the callback function that will be called at different stages of the layout cycle.
+ * @param callback The callback. Not <code>null</code>.
+ */
+ public void addLayoutCallback(LayoutCallback callback)
+ {
+ if (callback == null)
+ throw new NullPointerException();
+
+ if (callbackList == null)
+ callbackList = new ArrayList<LayoutCallback>(1);
+
+ callbackList.add(callback);
+
+ grid = null;
+ }
+
+ /** Removes the callback if it exists.
+ * @param callback The callback. May be <code>null</code>.
+ */
+ public void removeLayoutCallback(LayoutCallback callback)
+ {
+ if (callbackList != null)
+ callbackList.remove(callback);
+ }
+
+ /** Sets the debugging state for this layout manager instance. If debug is turned on a timer will repaint the last laid out parent
+ * with debug information on top.
+ * <p>
+ * Red fill and dashed red outline is used to indicate occupied cells in the grid. Blue dashed outline indicate
+ * component bounds set.
+ * <p>
+ * Note that debug can also be set on the layout constraints. There it will be persisted. The value set here will not. See the class
+ * JavaDocs for information.
+ * @param parentW The parent to set debug for.
+ * @param b <code>true</code> means debug is turned on.
+ */
+ private void setDebug(final ComponentWrapper parentW, boolean b)
+ {
+ if (b && (debugTimer == null || debugTimer.getDelay() != getDebugMillis())) {
+ if (debugTimer != null)
+ debugTimer.stop();
+
+ ContainerWrapper pCW = parentW.getParent();
+ final Component parent = pCW != null ? (Component) pCW.getComponent() : null;
+
+ debugTimer = new Timer(getDebugMillis(), new MyDebugRepaintListener());
+
+ if (parent != null) {
+ SwingUtilities.invokeLater(new Runnable() {
+ @Override
+ public void run() {
+ Container p = parent.getParent();
+ if (p != null) {
+ if (p instanceof JComponent) {
+ ((JComponent) p).revalidate();
+ } else {
+ parent.invalidate();
+ p.validate();
+ }
+ }
+ }
+ });
+ }
+
+ debugTimer.setInitialDelay(100);
+ debugTimer.start();
+
+ } else if (!b && debugTimer != null) {
+ debugTimer.stop();
+ debugTimer = null;
+ }
+ }
+
+ /** Returns the current debugging state.
+ * @return The current debugging state.
+ */
+ private boolean getDebug()
+ {
+ return debugTimer != null;
+ }
+
+ /** Returns the debug millis. Combines the value from {@link net.miginfocom.layout.LC#getDebugMillis()} and {@link net.miginfocom.layout.LayoutUtil#getGlobalDebugMillis()}
+ * @return The combined value.
+ */
+ private int getDebugMillis()
+ {
+ int globalDebugMillis = LayoutUtil.getGlobalDebugMillis();
+ return globalDebugMillis > 0 ? globalDebugMillis : lc.getDebugMillis();
+ }
+
+ /** Check if something has changed and if so recreate it to the cached objects.
+ * @param parent The parent that is the target for this layout manager.
+ */
+ private void checkCache(Container parent)
+ {
+ if (parent == null)
+ return;
+
+ if (dirty)
+ grid = null;
+
+ cleanConstraintMaps(parent);
+
+ // Check if the grid is valid
+ int mc = PlatformDefaults.getModCount();
+ if (lastModCount != mc) {
+ grid = null;
+ lastModCount = mc;
+ }
+
+ if (!parent.isValid()) {
+ if (!lastWasInvalid) {
+ lastWasInvalid = true;
+
+ int hash = 0;
+ boolean resetLastInvalidOnParent = false; // Added in 3.7.3 to resolve a timing regression introduced in 3.7.1
+ for (ComponentWrapper wrapper : ccMap.keySet()) {
+ Object component = wrapper.getComponent();
+ if (component instanceof JTextArea || component instanceof JEditorPane)
+ resetLastInvalidOnParent = true;
+
+ hash ^= wrapper.getLayoutHashCode();
+ hash += 285134905;
+ }
+ if (resetLastInvalidOnParent)
+ resetLastInvalidOnParent(parent);
+
+ if (hash != lastHash) {
+ grid = null;
+ lastHash = hash;
+ }
+
+ Dimension ps = parent.getSize();
+ if (lastInvalidSize == null || !lastInvalidSize.equals(ps)) {
+ grid = null;
+ lastInvalidSize = ps;
+ }
+ }
+ } else {
+ lastWasInvalid = false;
+ }
+
+ ContainerWrapper par = checkParent(parent);
+
+ setDebug(par, getDebugMillis() > 0);
+
+ if (grid == null)
+ grid = new Grid(par, lc, rowSpecs, colSpecs, ccMap, callbackList);
+
+ dirty = false;
+ }
+
+ /** Checks so all components in ccMap actually exist in the parent's collection. Removes
+ * any references that don't.
+ * @param parent The parent to compare ccMap against. Never null.
+ */
+ private void cleanConstraintMaps(Container parent)
+ {
+ HashSet<Component> parentCompSet = new HashSet<Component>(Arrays.asList(parent.getComponents()));
+
+ Iterator<Map.Entry<ComponentWrapper, CC>> it = ccMap.entrySet().iterator();
+ while(it.hasNext()) {
+ Component c = (Component) it.next().getKey().getComponent();
+ if (parentCompSet.contains(c) == false) {
+ it.remove();
+ scrConstrMap.remove(c);
+ }
+ }
+ }
+
+ /**
+ * @since 3.7.3
+ */
+ private void resetLastInvalidOnParent(Container parent)
+ {
+ while (parent != null) {
+ LayoutManager layoutManager = parent.getLayout();
+ if (layoutManager instanceof MigLayout) {
+ ((MigLayout) layoutManager).lastWasInvalid = false;
+ }
+ parent = parent.getParent();
+ }
+ }
+
+ private ContainerWrapper checkParent(Container parent)
+ {
+ if (parent == null)
+ return null;
+
+ if (cacheParentW == null || cacheParentW.getComponent() != parent)
+ cacheParentW = new SwingContainerWrapper(parent);
+
+ return cacheParentW;
+ }
+
+ private long lastSize = 0;
+
+ @Override
+ public void layoutContainer(final Container parent)
+ {
+ synchronized(parent.getTreeLock()) {
+ checkCache(parent);
+
+ Insets i = parent.getInsets();
+ int[] b = new int[] {
+ i.left,
+ i.top,
+ parent.getWidth() - i.left - i.right,
+ parent.getHeight() - i.top - i.bottom
+ };
+
+ if (grid.layout(b, lc.getAlignX(), lc.getAlignY(), getDebug())) {
+ grid = null;
+ checkCache(parent);
+ grid.layout(b, lc.getAlignX(), lc.getAlignY(), getDebug());
+ }
+
+ long newSize = grid.getHeight()[1] + (((long) grid.getWidth()[1]) << 32);
+ if (lastSize != newSize) {
+ lastSize = newSize;
+ final ContainerWrapper containerWrapper = checkParent(parent);
+ Window win = ((Window) SwingUtilities.getAncestorOfClass(Window.class, (Component)containerWrapper.getComponent()));
+ if (win != null) {
+ if (win.isVisible()) {
+ SwingUtilities.invokeLater(new Runnable() {
+ @Override
+ public void run() {
+ adjustWindowSize(containerWrapper);
+ }
+ });
+ } else {
+ adjustWindowSize(containerWrapper);
+ }
+ }
+ }
+ lastInvalidSize = null;
+ }
+ }
+
+ /** Checks the parent window/popup if its size is within parameters as set by the LC.
+ * @param parent The parent who's window to possibly adjust the size for.
+ */
+ private void adjustWindowSize(ContainerWrapper parent)
+ {
+ BoundSize wBounds = lc.getPackWidth();
+ BoundSize hBounds = lc.getPackHeight();
+
+ if (wBounds == BoundSize.NULL_SIZE && hBounds == BoundSize.NULL_SIZE)
+ return;
+
+ Container packable = getPackable((Component) parent.getComponent());
+
+ if (packable != null) {
+
+ Component pc = (Component) parent.getComponent();
+
+ Container c = pc instanceof Container ? (Container) pc : pc.getParent();
+ for (; c != null; c = c.getParent()) {
+ LayoutManager layout = c.getLayout();
+ if (layout instanceof BoxLayout || layout instanceof OverlayLayout)
+ ((LayoutManager2) layout).invalidateLayout(c);
+ }
+
+ Dimension prefSize = packable.getPreferredSize();
+ int targW = constrain(checkParent(packable), packable.getWidth(), prefSize.width, wBounds);
+ int targH = constrain(checkParent(packable), packable.getHeight(), prefSize.height, hBounds);
+
+ Point p = packable.isShowing() ? packable.getLocationOnScreen() : packable.getLocation();
+
+ int x = Math.round(p.x - ((targW - packable.getWidth()) * (1 - lc.getPackWidthAlign())));
+ int y = Math.round(p.y - ((targH - packable.getHeight()) * (1 - lc.getPackHeightAlign())));
+
+ if (packable instanceof JPopupMenu) {
+ JPopupMenu popupMenu = (JPopupMenu) packable;
+ popupMenu.setVisible(false);
+ popupMenu.setPopupSize(targW, targH);
+ Component invoker = popupMenu.getInvoker();
+ Point popPoint = new Point(x, y);
+ SwingUtilities.convertPointFromScreen(popPoint, invoker);
+ ((JPopupMenu) packable).show(invoker, popPoint.x, popPoint.y);
+
+ packable.setPreferredSize(null); // Reset preferred size so we don't read it again.
+
+ } else {
+ packable.setBounds(x, y, targW, targH);
+ }
+ }
+ }
+
+ /** Returns a high level window or popup to pack, if any.
+ * @return May be null.
+ */
+ private Container getPackable(Component comp)
+ {
+ JPopupMenu popup = findType(JPopupMenu.class, comp);
+ if (popup != null) { // Lightweight/HeavyWeight popup must be handled separately
+ Container popupComp = popup;
+ while (popupComp != null) {
+ if (popupComp.getClass().getName().contains("HeavyWeightWindow"))
+ return popupComp; // Return the heavy weight window for normal processing
+ popupComp = popupComp.getParent();
+ }
+ return popup; // Return the JPopup.
+ }
+
+ return findType(Window.class, comp);
+ }
+
+ public static <E> E findType(Class<E> clazz, Component comp)
+ {
+ while (comp != null && !clazz.isInstance(comp))
+ comp = comp.getParent();
+
+ return (E) comp;
+ }
+
+
+ private int constrain(ContainerWrapper parent, int winSize, int prefSize, BoundSize constrain)
+ {
+ if (constrain == null)
+ return winSize;
+
+ int retSize = winSize;
+ UnitValue wUV = constrain.getPreferred();
+ if (wUV != null)
+ retSize = wUV.getPixels(prefSize, parent, parent);
+
+ retSize = constrain.constrain(retSize, prefSize, parent);
+
+ return constrain.getGapPush() ? Math.max(winSize, retSize) : retSize;
+ }
+
+ @Override
+ public Dimension minimumLayoutSize(Container parent)
+ {
+ synchronized(parent.getTreeLock()) {
+ return getSizeImpl(parent, LayoutUtil.MIN);
+ }
+ }
+
+ @Override
+ public Dimension preferredLayoutSize(Container parent)
+ {
+ synchronized(parent.getTreeLock()) {
+ if (lastParentSize == null || !parent.getSize().equals(lastParentSize)) {
+ for (ComponentWrapper wrapper : ccMap.keySet()) {
+ if (wrapper.getContentBias() != -1) {
+ layoutContainer(parent);
+ break;
+ }
+ }
+ }
+
+ lastParentSize = parent.getSize();
+ return getSizeImpl(parent, LayoutUtil.PREF);
+ }
+ }
+
+ @Override
+ public Dimension maximumLayoutSize(Container parent)
+ {
+ return new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE);
+ }
+
+ // Implementation method that does the job.
+ private Dimension getSizeImpl(Container parent, int sizeType)
+ {
+ checkCache(parent);
+
+ Insets i = parent.getInsets();
+
+ int w = LayoutUtil.getSizeSafe(grid != null ? grid.getWidth() : null, sizeType) + i.left + i.right;
+ int h = LayoutUtil.getSizeSafe(grid != null ? grid.getHeight() : null, sizeType) + i.top + i.bottom;
+
+ return new Dimension(w, h);
+ }
+
+ @Override
+ public float getLayoutAlignmentX(Container parent)
+ {
+ return lc != null && lc.getAlignX() != null ? lc.getAlignX().getPixels(1, checkParent(parent), null) : 0;
+ }
+
+ @Override
+ public float getLayoutAlignmentY(Container parent)
+ {
+ return lc != null && lc.getAlignY() != null ? lc.getAlignY().getPixels(1, checkParent(parent), null) : 0;
+ }
+
+ @Override
+ public void addLayoutComponent(String s, Component comp)
+ {
+ addLayoutComponent(comp, s);
+ }
+
+ @Override
+ public void addLayoutComponent(Component comp, Object constraints)
+ {
+ synchronized(comp.getParent().getTreeLock()) {
+ setComponentConstraintsImpl(comp, constraints, true);
+ }
+ }
+
+ @Override
+ public void removeLayoutComponent(Component comp)
+ {
+ synchronized(comp.getParent().getTreeLock()) {
+ scrConstrMap.remove(comp);
+ ccMap.remove(new SwingComponentWrapper(comp));
+ grid = null; // To clear references
+ }
+ }
+
+ @Override
+ public void invalidateLayout(Container target)
+ {
+ dirty = true;
+ }
+
+ // ************************************************
+ // Persistence Delegate and Serializable combined.
+ // ************************************************
+
+ private Object readResolve() throws ObjectStreamException
+ {
+ return LayoutUtil.getSerializedObject(this);
+ }
+
+ @Override
+ public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException
+ {
+ LayoutUtil.setSerializedObject(this, LayoutUtil.readAsXML(in));
+ }
+
+ @Override
+ public void writeExternal(ObjectOutput out) throws IOException
+ {
+ if (getClass() == MigLayout.class)
+ LayoutUtil.writeAsXML(out, this);
+ }
+
+ private class MyDebugRepaintListener implements ActionListener
+ {
+ @Override
+ public void actionPerformed(ActionEvent e)
+ {
+ if (grid != null) {
+ Component comp = (Component) grid.getContainer().getComponent();
+ if (comp.isShowing()) {
+ grid.paintDebug();
+ return;
+ }
+ }
+ debugTimer.stop();
+ debugTimer = null;
+ }
+ }
+}
\ No newline at end of file