Java JComponent.revalidate方法代码示例

import javax.swing.JComponent; //导入方法依赖的package包/类
/**
 * Import a unit specified by its label to a component.
 *
 * @param comp The component to import to.
 * @param label The {@code UnitLabel} specifying the unit.
 * @param oldSelectedUnit A label for the old {@code Unit} to restore
 *     selection to.
 * @return True if the import succeeds.
 */
private boolean importUnit(JComponent comp, UnitLabel label,
                           UnitLabel oldSelectedUnit) {
    if (!(comp instanceof DropTarget)) return importFail(comp, "unit");
    final DropTarget target = (DropTarget)comp;

    // Check if the unit can be dragged to comp.
    final Unit unit = label.getUnit();
    if (!target.accepts(unit)) {
        return importFail(comp, "unacceptable unit (" + unit + ")");
    }

    // OK, add it.
    target.add(label, true);

    // Update unit selection.
    // New unit selection has already been taken care of
    // if this unit was moved to ToAmericaPanel
    restoreSelection(oldSelectedUnit);
    comp.revalidate();
    return true;
}
 

import javax.swing.JComponent; //导入方法依赖的package包/类
private void refreshMenu() {
  if (menuItems != null && menuItems.length > 0) {
    firstIndex = Math.max(topFixedCount, firstIndex);
    firstIndex = Math.min(menuItems.length - bottomFixedCount - scrollCount, firstIndex);

    upItem.setEnabled(firstIndex > topFixedCount);
    downItem.setEnabled(firstIndex + scrollCount < menuItems.length - bottomFixedCount);

    menu.removeAll();
    for (int i = 0; i < topFixedCount; i++) {
      menu.add(menuItems[i]);
    }
    if (topFixedCount > 0) {
      menu.addSeparator();
    }

    menu.add(upItem);
    for (int i = firstIndex; i < scrollCount + firstIndex; i++) {
      menu.add(menuItems[i]);
    }
    menu.add(downItem);

    if (bottomFixedCount > 0) {
      menu.addSeparator();
    }
    for (int i = menuItems.length - bottomFixedCount; i < menuItems.length; i++) {
      menu.add(menuItems[i]);
    }

    JComponent parent = (JComponent) upItem.getParent();
    parent.revalidate();
    parent.repaint();
  }
}
 

import javax.swing.JComponent; //导入方法依赖的package包/类
private void refreshMenu() {
  if (menuItems != null && menuItems.length > 0) {
    firstIndex = Math.max(topFixedCount, firstIndex);
    firstIndex = Math.min(menuItems.length - bottomFixedCount - scrollCount, firstIndex);

    upItem.setEnabled(firstIndex > topFixedCount);
    downItem.setEnabled(firstIndex + scrollCount < menuItems.length - bottomFixedCount);

    menu.removeAll();
    for (int i = 0; i < topFixedCount; i++) {
      menu.add(menuItems[i]);
    }
    if (topFixedCount > 0) {
      menu.add(new JSeparator());
    }

    menu.add(upItem);
    for (int i = firstIndex; i < scrollCount + firstIndex; i++) {
      menu.add(menuItems[i]);
    }
    menu.add(downItem);

    if (bottomFixedCount > 0) {
      menu.add(new JSeparator());
    }
    for (int i = menuItems.length - bottomFixedCount; i < menuItems.length; i++) {
      menu.add(menuItems[i]);
    }

    JComponent parent = (JComponent) upItem.getParent();
    parent.revalidate();
    parent.repaint();
  }
}
 

import javax.swing.JComponent; //导入方法依赖的package包/类
private void refreshMenu() {
    if (menuItems != null && menuItems.length > 0) {
        firstIndex = Math.max(topFixedCount, firstIndex);
        firstIndex = Math.min(menuItems.length - bottomFixedCount - scrollCount, firstIndex);

        upItem.setEnabled(firstIndex > topFixedCount);
        downItem.setEnabled(firstIndex + scrollCount < menuItems.length - bottomFixedCount);

        menu.removeAll();
        for (int i = 0; i < topFixedCount; i++) {
            menu.add(menuItems[i]);
        }
        if (topFixedCount > 0) {
            menu.addSeparator();
        }

        menu.add(upItem);
        for (int i = firstIndex; i < scrollCount + firstIndex; i++) {
            menu.add(menuItems[i]);
        }
        menu.add(downItem);

        if (bottomFixedCount > 0) {
            menu.addSeparator();
        }
        for (int i = menuItems.length - bottomFixedCount; i < menuItems.length; i++) {
            menu.add(menuItems[i]);
        }

        JComponent parent = (JComponent) upItem.getParent();
        parent.revalidate();
        parent.repaint();
    }
}
 

import javax.swing.JComponent; //导入方法依赖的package包/类
private void selectPlatform (Node pNode) {
    Component active = null;
    for (Component c : cards.getComponents()) {
        if (c.isVisible() &&
            (c == jPanel1 || c == messageArea)) {
                active = c;
                break;
        }
    }
    final Dimension lastSize = active == null ?
        null :
        active.getSize();
    this.clientArea.removeAll();
    this.messageArea.removeAll();
    this.removeButton.setEnabled (false);
    if (pNode == null) {
        ((CardLayout)cards.getLayout()).last(cards);
        return;
    }
    JComponent target = messageArea;
    JComponent owner = messageArea;
    JavaPlatform platform = pNode.getLookup().lookup(JavaPlatform.class);
    if (pNode != getExplorerManager().getRootContext()) {
        if (platform != null) {
            this.removeButton.setEnabled (canRemove(platform, pNode.getLookup().lookup(DataObject.class)));
            if (!platform.getInstallFolders().isEmpty()) {
                this.platformName.setText(pNode.getDisplayName());
                for (FileObject installFolder : platform.getInstallFolders()) {
                    File file = FileUtil.toFile(installFolder);
                    if (file != null) {
                        this.platformHome.setText (file.getAbsolutePath());
                    }
                }
                target = clientArea;
                owner = jPanel1;
            }
        }
        Component component = null;
        if (pNode.hasCustomizer()) {
            component = pNode.getCustomizer();
        }
        if (component == null) {
            final PropertySheet sp = new PropertySheet();
            sp.setNodes(new Node[] {pNode});
            component = sp;
        }
        addComponent(target, component);
    }
    if (lastSize != null) {
        final Dimension newSize = owner.getPreferredSize();
        final Dimension updatedSize = new Dimension(
            Math.max(lastSize.width, newSize.width),
            Math.max(lastSize.height, newSize.height));
        if (!newSize.equals(updatedSize)) {
            owner.setPreferredSize(updatedSize);
        }
    }
    target.revalidate();
    CardLayout cl = (CardLayout) cards.getLayout();
    if (target == clientArea) {
        cl.first (cards);
    }
    else {
        cl.last (cards);
    }
}
 

import javax.swing.JComponent; //导入方法依赖的package包/类
final void resizeContainer() {
    JComponent c = ( JComponent ) container.getParent();
    c.invalidate();
    c.revalidate();
    c.doLayout();
}
 

import javax.swing.JComponent; //导入方法依赖的package包/类
private void selectPlatform(Node pNode) {
    Component active = null;
    for (Component c : cards.getComponents()) {
        if (c.isVisible()
                && (c == jPanel1 || c == messageArea)) {
            active = c;
            break;
        }
    }
    final Dimension lastSize = active == null
            ? null
            : active.getSize();
    this.clientArea.removeAll();
    this.messageArea.removeAll();
    this.removeButton.setEnabled(false);
    if (pNode == null) {
        ((CardLayout) cards.getLayout()).last(cards);
        return;
    }
    JComponent target = messageArea;
    JComponent owner = messageArea;
    selectedPlatform = pNode.getLookup().lookup(AndroidSdk.class);
    if (pNode != getExplorerManager().getRootContext()) {
        if (selectedPlatform != null) {
            mkDefault.setEnabled(!selectedPlatform.isDefaultSdk());
            this.removeButton.setEnabled(!selectedPlatform.isDefaultSdk());
            if (!selectedPlatform.getInstallFolders().isEmpty()) {
                this.platformName.setText(pNode.getDisplayName());
                for (FileObject installFolder : selectedPlatform.getInstallFolders()) {
                    File file = FileUtil.toFile(installFolder);
                    if (file != null) {
                        this.platformHome.setText(file.getAbsolutePath());
                    }
                }
                target = clientArea;
                owner = jPanel1;
            }
        } else {
            removeButton.setEnabled(false);
            mkDefault.setEnabled(false);
        }
        Component component = null;
        if (pNode.hasCustomizer()) {
            component = pNode.getCustomizer();
        }
        if (component == null) {
            final PropertySheet sp = new PropertySheet();
            sp.setNodes(new Node[]{pNode});
            component = sp;
        }
        addComponent(target, component);
    }
    if (lastSize != null) {
        final Dimension newSize = owner.getPreferredSize();
        final Dimension updatedSize = new Dimension(
                Math.max(lastSize.width, newSize.width),
                Math.max(lastSize.height, newSize.height));
        if (!newSize.equals(updatedSize)) {
            owner.setPreferredSize(updatedSize);
        }
    }
    target.revalidate();
    CardLayout cl = (CardLayout) cards.getLayout();
    if (target == clientArea) {
        cl.first(cards);
    } else {
        cl.last(cards);
    }
}