Java Code Examples for java.awt.Component#isFocusCycleRoot()
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Example 1
Source File: SortingFocusTraversalPolicy.java From openjdk-jdk9 with GNU General Public License v2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 2
Source File: SortingFocusTraversalPolicy.java From jdk8u-dev-jdk with GNU General Public License v2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 3
Source File: SortingFocusTraversalPolicy.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 4
Source File: SortingFocusTraversalPolicy.java From jdk8u_jdk with GNU General Public License v2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 5
Source File: SortingFocusTraversalPolicy.java From openjdk-8 with GNU General Public License v2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 6
Source File: SortingFocusTraversalPolicy.java From openjdk-8-source with GNU General Public License v2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 7
Source File: SortingFocusTraversalPolicy.java From hottub with GNU General Public License v2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 8
Source File: SortingFocusTraversalPolicy.java From Java8CN with Apache License 2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 9
Source File: SortingFocusTraversalPolicy.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 10
Source File: SortingFocusTraversalPolicy.java From jdk1.8-source-analysis with Apache License 2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 11
Source File: SortingFocusTraversalPolicy.java From Bytecoder with Apache License 2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 12
Source File: SortingFocusTraversalPolicy.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 13
Source File: SortingFocusTraversalPolicy.java From openjdk-jdk8u with GNU General Public License v2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 14
Source File: SortingFocusTraversalPolicy.java From JDKSourceCode1.8 with MIT License | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 15
Source File: SortingFocusTraversalPolicy.java From jdk8u60 with GNU General Public License v2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 16
Source File: SortingFocusTraversalPolicy.java From TencentKona-8 with GNU General Public License v2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }
Example 17
Source File: SortingFocusTraversalPolicy.java From dragonwell8_jdk with GNU General Public License v2.0 | 4 votes |
/** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, SortingFocusTraversalPolicy implicitly transfers focus down- * cycle. That is, during normal focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's * default Component to focus. This behavior can be disabled using the * <code>setImplicitDownCycleTraversal</code> method. * <p> * If aContainer is <a href="../../java/awt/doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or a focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp; Component tryComp; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } return null; }