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## org.apache.jmeter.gui
Class GuiPackage

    java.lang.Object
      org.apache.jmeter.gui.GuiPackage

All Implemented Interfaces:
  LocaleChangeListener

    public final class GuiPackage

extends Object
implements LocaleChangeListener

GuiPackage is a static class that provides convenient access to information about the current state of JMeter's GUI. Any GUI class can grab a handle to GuiPackage by calling the static method `getInstance()` and then use it to query the GUI about it's state. When actions, for instance, need to affect the GUI, they typically use GuiPackage to get access to different parts of the GUI.

Method Summary
`HashTree` | `addSubTree(HashTree subTree)` Add a subtree to the currently selected node.
`void` | `clearTestPlan()` Clears the test plan and associated objects.
`void` | `clearTestPlan(TestElement element)` Clears the test plan element and associated object
`TestElement` | `createTestElement(Class<?> guiClass, Class<?> testClass)` Create a TestElement corresponding to the specified GUI class.
`TestElement` | `createTestElement(String objClass)` Create a TestElement for a GUI or TestBean class.
`void` | `displayPopUp(Component invoker, MouseEvent e, JPopupMenu popup)` Display the specified popup menu at the location specified by a mouse event with the specified source component.
`void` | `displayPopUp(MouseEvent e, JPopupMenu popup)` Display the specified popup menu with the source component and location from the specified mouse event.
`TestElement` | `getCurrentElement()`
`JMeterGUIComponent` | `getCurrentGui()` Convenience method for grabbing the gui for the current node.
`JMeterTreeNode` | `getCurrentNode()`
`HashTree` | `getCurrentSubTree()` Get the currently selected subtree.
`JMeterGUIComponent` | `getGui(TestElement node)` Get a JMeterGUIComponent for the specified test element.
`JMeterGUIComponent` | `getGui(TestElement node, Class<?> guiClass, Class<?> testClass)` Get a JMeterGUIComponent for the specified test element.
`static GuiPackage` | `getInstance()` Retrieve the singleton GuiPackage instance.
`static GuiPackage` | `getInstance(JMeterTreeListener listener, JMeterTreeModel treeModel)` When GuiPackage is requested for the first time, it should be given handles to JMeter's Tree Listener and TreeModel.
`MainFrame` | `getMainFrame()` Get the main JMeter frame.
`JMeterTreeNode` | `getNodeOf(TestElement userObject)` Find the JMeterTreeNode for a certain TestElement object.
`ValueReplacer` | `getReplacer()` Get a ValueReplacer for the test tree.
`String` | `getTestPlanFile()`
`JMeterTreeListener` | `getTreeListener()` Get the listener for JMeter's test tree.
`JMeterTreeModel` | `getTreeModel()` Get the model for JMeter's test tree.
`boolean` | `isDirty()` Retrieves the state of the 'dirty' property, a flag that indicates if there are test tree components that have been modified since they were last saved.
`void` | `localeChanged(LocaleChangeEvent event)`
`void` | `removeNode(TestElement node)` Remove a test element from the tree.
`void` | `setDirty(boolean dirty)` The dirty property is a flag that indicates whether there are parts of JMeter's test tree that the user has not saved since last modification.
`void` | `setMainFrame(MainFrame newMainFrame)` Set the main JMeter frame.
`void` | `setTestPlanFile(String f)` Sets the filepath of the current test plan.
`void` | `setTreeListener(JMeterTreeListener newTreeListener)` Set the listener for JMeter's test tree.
`void` | `setTreeModel(JMeterTreeModel newTreeModel)` Set the model for JMeter's test tree.
`static void` | `showErrorMessage(String message, String title)`
`static void` | `showInfoMessage(String message, String title)`
`static void` | `showMessage(String message, String title, int type)`
`static void` | `showWarningMessage(String message, String title)`
`void` | `updateCurrentGui()` Update the GUI for the currently selected node.
`void` | `updateCurrentNode()` This method should be called in order for GuiPackage to change the current node.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Method Detail

### getInstance

    public static GuiPackage getInstance()

  Retrieve the singleton GuiPackage instance.

  Returns:
    the GuiPackage instance

### getInstance

    public static GuiPackage getInstance(JMeterTreeListener listener,
                                         JMeterTreeModel treeModel)

  When GuiPackage is requested for the first time, it should be given handles to JMeter's Tree Listener and TreeModel.

  Parameters:
    `listener` - the TreeListener for JMeter's test tree
    `treeModel` - the model for JMeter's test tree
  Returns:
    GuiPackage

### getGui

    public JMeterGUIComponent getGui(TestElement node)

  Get a JMeterGUIComponent for the specified test element. If the GUI has already been created, that instance will be returned. Otherwise, if a GUI component of the same type has been created, and the component is not marked as an `UnsharedComponent`, that shared component will be returned. Otherwise, a new instance of the component will be created. The TestElement's GUI_CLASS property will be used to determine the appropriate type of GUI component to use.

  Parameters:
    `node` - the test element which this GUI is being created for
  Returns:
    the GUI component corresponding to the specified test element

### getGui

    public JMeterGUIComponent getGui(TestElement node,
                                     Class<?> guiClass,
                                     Class<?> testClass)

  Get a JMeterGUIComponent for the specified test element. If the GUI has already been created, that instance will be returned. Otherwise, if a GUI component of the same type has been created, and the component is not marked as an `UnsharedComponent`, that shared component will be returned. Otherwise, a new instance of the component will be created.

  Parameters:
    `node` - the test element which this GUI is being created for
    `guiClass` - the fully qualifed class name of the GUI component which will be created if it doesn't already exist
    `testClass` - the fully qualifed class name of the test elements which have to be edited by the returned GUI component
  Returns:
    the GUI component corresponding to the specified test element

### removeNode

    public void removeNode(TestElement node)

  Remove a test element from the tree. This removes the reference to any associated GUI component.

  Parameters:
    `node` - the test element being removed

### getCurrentGui

    public JMeterGUIComponent getCurrentGui()

  Convenience method for grabbing the gui for the current node.

  Returns:
    the GUI component associated with the currently selected node

### getNodeOf

    public JMeterTreeNode getNodeOf(TestElement userObject)

  Find the JMeterTreeNode for a certain TestElement object.

  Parameters:
    `userObject` - the test element to search for
  Returns:
    the tree node associated with the test element

### createTestElement

    public TestElement createTestElement(Class<?> guiClass,
                                         Class<?> testClass)

  Create a TestElement corresponding to the specified GUI class.

  Parameters:
    `guiClass` - the fully qualified class name of the GUI component or a TestBean class for TestBeanGUIs.
    `testClass` - the fully qualified class name of the test elements edited by this GUI component.
  Returns:
    the test element corresponding to the specified GUI class.

### createTestElement

    public TestElement createTestElement(String objClass)

  Create a TestElement for a GUI or TestBean class.

  This is a utility method to help actions do with one single String parameter.

  Parameters:
    `objClass` - the fully qualified class name of the GUI component or of the TestBean subclass for which a TestBeanGUI is wanted.
  Returns:
    the test element corresponding to the specified GUI class.

### updateCurrentGui

    public void updateCurrentGui()

  Update the GUI for the currently selected node. The GUI component is configured to reflect the settings in the current tree node.

### updateCurrentNode

    public void updateCurrentNode()

  This method should be called in order for GuiPackage to change the current node. This will save any changes made to the earlier node before choosing the new node.

### getCurrentNode

    public JMeterTreeNode getCurrentNode()

### getCurrentElement

    public TestElement getCurrentElement()

### setDirty

    public void setDirty(boolean dirty)

  The dirty property is a flag that indicates whether there are parts of JMeter's test tree that the user has not saved since last modification. Various (@link Command actions) set this property when components are modified/created/saved.

  Parameters:
    `dirty` - the new value of the dirty flag

### isDirty

    public boolean isDirty()

  Retrieves the state of the 'dirty' property, a flag that indicates if there are test tree components that have been modified since they were last saved.

  Returns:
    true if some tree components have been modified since they were last saved, false otherwise

### addSubTree

    public HashTree addSubTree(HashTree subTree)
                        throws IllegalUserActionException

  Add a subtree to the currently selected node.

  Parameters:
    `subTree` - the subtree to add.
  Returns:
    the resulting subtree starting with the currently selected node
  Throws:
    `IllegalUserActionException` - if a subtree cannot be added to the currently selected node

### getCurrentSubTree

    public HashTree getCurrentSubTree()

  Get the currently selected subtree.

  Returns:
    the subtree of the currently selected node

### getTreeModel

    public JMeterTreeModel getTreeModel()

  Get the model for JMeter's test tree.

  Returns:
    the JMeter tree model

### setTreeModel

    public void setTreeModel(JMeterTreeModel newTreeModel)

  Set the model for JMeter's test tree.

  Parameters:
    `newTreeModel` - the new JMeter tree model

### getReplacer

    public ValueReplacer getReplacer()

  Get a ValueReplacer for the test tree.

  Returns:
    a ValueReplacer configured for the test tree

### setMainFrame

    public void setMainFrame(MainFrame newMainFrame)

  Set the main JMeter frame.

  Parameters:
    `newMainFrame` - the new JMeter main frame

### getMainFrame

    public MainFrame getMainFrame()

  Get the main JMeter frame.

  Returns:
    the main JMeter frame

### setTreeListener

    public void setTreeListener(JMeterTreeListener newTreeListener)

  Set the listener for JMeter's test tree.

  Parameters:
    `newTreeListener` - the new JMeter test tree listener

### getTreeListener

    public JMeterTreeListener getTreeListener()

  Get the listener for JMeter's test tree.

  Returns:
    the JMeter test tree listener

### displayPopUp

    public void displayPopUp(MouseEvent e,
                             JPopupMenu popup)

  Display the specified popup menu with the source component and location from the specified mouse event.

  Parameters:
    `e` - the mouse event causing this popup to be displayed
    `popup` - the popup menu to display

### displayPopUp

    public void displayPopUp(Component invoker,
                             MouseEvent e,
                             JPopupMenu popup)

  Display the specified popup menu at the location specified by a mouse event with the specified source component.

  Parameters:
    `invoker` - the source component
    `e` - the mouse event causing this popup to be displayed
    `popup` - the popup menu to display

### localeChanged

    public void localeChanged(LocaleChangeEvent event)

  Specified by:
    `localeChanged` in interface `LocaleChangeListener`

### setTestPlanFile

    public void setTestPlanFile(String f)

  Sets the filepath of the current test plan. It's shown in the main frame title and used on saving.

  Parameters:
    `f` -

### getTestPlanFile

    public String getTestPlanFile()

### clearTestPlan

    public void clearTestPlan()

  Clears the test plan and associated objects. Clears the test plan file name.

### clearTestPlan

    public void clearTestPlan(TestElement element)

  Clears the test plan element and associated object

  Parameters:
    `element` - to clear

### showErrorMessage

    public static void showErrorMessage(String message,
                                        String title)

### showInfoMessage

    public static void showInfoMessage(String message,
                                       String title)

### showWarningMessage

    public static void showWarningMessage(String message,
                                          String title)

### showMessage

    public static void showMessage(String message,
                                   String title,
                                   int type)

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