unused - could be trashed.
[jalview.git] / unused / net / miginfocom / swing / MigLayout.java
diff --git a/unused/net/miginfocom/swing/MigLayout.java b/unused/net/miginfocom/swing/MigLayout.java
new file mode 100644 (file)
index 0000000..fdd7718
--- /dev/null
@@ -0,0 +1,786 @@
+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;
+               }
+       }
+}
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