src/java.desktop/share/classes/java/awt/Container.java

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1092      * @see       LayoutManager2
1093      * @since     1.1
1094      */
1095     protected void addImpl(Component comp, Object constraints, int index) {
1096         synchronized (getTreeLock()) {
1097             /* Check for correct arguments:  index in bounds,
1098              * comp cannot be one of this container's parents,
1099              * and comp cannot be a window.
1100              * comp and container must be on the same GraphicsDevice.
1101              * if comp is container, all sub-components must be on
1102              * same GraphicsDevice.
1103              */
1104             GraphicsConfiguration thisGC = this.getGraphicsConfiguration();
1105 
1106             if (index > component.size() || (index < 0 && index != -1)) {
1107                 throw new IllegalArgumentException(
1108                           "illegal component position");
1109             }
1110             checkAddToSelf(comp);
1111             checkNotAWindow(comp);
1112             if (thisGC != null) {
1113                 comp.checkGD(thisGC.getDevice().getIDstring());
1114             }
1115 
1116             /* Reparent the component and tidy up the tree's state. */
1117             if (comp.parent != null) {
1118                 comp.parent.remove(comp);
1119                     if (index > component.size()) {
1120                         throw new IllegalArgumentException("illegal component position");
1121                     }
1122             }





1123 
1124             //index == -1 means add to the end.
1125             if (index == -1) {
1126                 component.add(comp);
1127             } else {
1128                 component.add(index, comp);
1129             }
1130             comp.parent = this;
1131             comp.setGraphicsConfiguration(thisGC);
1132 
1133             adjustListeningChildren(AWTEvent.HIERARCHY_EVENT_MASK,
1134                 comp.numListening(AWTEvent.HIERARCHY_EVENT_MASK));
1135             adjustListeningChildren(AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK,
1136                 comp.numListening(AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK));
1137             adjustDescendants(comp.countHierarchyMembers());
1138 
1139             invalidateIfValid();
1140             if (peer != null) {
1141                 comp.addNotify();
1142             }




1092      * @see       LayoutManager2
1093      * @since     1.1
1094      */
1095     protected void addImpl(Component comp, Object constraints, int index) {
1096         synchronized (getTreeLock()) {
1097             /* Check for correct arguments:  index in bounds,
1098              * comp cannot be one of this container's parents,
1099              * and comp cannot be a window.
1100              * comp and container must be on the same GraphicsDevice.
1101              * if comp is container, all sub-components must be on
1102              * same GraphicsDevice.
1103              */
1104             GraphicsConfiguration thisGC = this.getGraphicsConfiguration();
1105 
1106             if (index > component.size() || (index < 0 && index != -1)) {
1107                 throw new IllegalArgumentException(
1108                           "illegal component position");
1109             }
1110             checkAddToSelf(comp);
1111             checkNotAWindow(comp);




1112             /* Reparent the component and tidy up the tree's state. */
1113             if (comp.parent != null) {
1114                 comp.parent.remove(comp);
1115                 if (index > component.size()) {
1116                     throw new IllegalArgumentException("illegal component position");
1117                 }
1118             }
1119             if (thisGC != null) {
1120                 comp.checkGD(thisGC.getDevice().getIDstring());
1121             }
1122 
1123 
1124 
1125             //index == -1 means add to the end.
1126             if (index == -1) {
1127                 component.add(comp);
1128             } else {
1129                 component.add(index, comp);
1130             }
1131             comp.parent = this;
1132             comp.setGraphicsConfiguration(thisGC);
1133 
1134             adjustListeningChildren(AWTEvent.HIERARCHY_EVENT_MASK,
1135                 comp.numListening(AWTEvent.HIERARCHY_EVENT_MASK));
1136             adjustListeningChildren(AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK,
1137                 comp.numListening(AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK));
1138             adjustDescendants(comp.countHierarchyMembers());
1139 
1140             invalidateIfValid();
1141             if (peer != null) {
1142                 comp.addNotify();
1143             }