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Class jclass.bwt.JCContainer

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Container
                   |
                   +----java.awt.Panel
                           |
                           +----jclass.bwt.JCContainer

public class JCContainer

extends Panel

Properties

Name	Method
Background	setBackground
Font	setFont
Foreground	setForeground
Insets	setInsets
PreferredSize	setPreferredSize
UserData	setUserData

applet

The parent applet.

dblbuffer_image

Current double-buffer image.

version

JCContainer()

This creates an empty container.

JCContainer(Applet, String)

This creates a container which reads parameters from the applet's HTML file.

add(Component)

Adds the specified component to this container, if it is not already a child.

addNotify()

Creates the Panel's peer.

disable()

Disables all the container's children.

enable()

Enables all the container's children.

enable11Events(long)

For JDK1.1, calls Component.enableEvents (which is final).

fillBackground(Graphics)

Fills the component with the background color (called by paint).

getAppletContext()

Gets the container's applet's context.

getComponent(Component)

Returns the position of the child, or BWTEnum.NOTFOUND.

getComponent(int)

Gets the child at the specified position.

getConverter()

Gets the converter used for converting strings to internal values.

getDoubleBufferGraphics()

Creates a double-buffer image

getPaintRect()

Returns the area currently being painted, relative to the component's origin.

getParameters()

Reads the parameter values from the HTML page using the container's applet.

getParameters(Applet)

Reads the parameter values from the HTML page using the specified applet.

getParameters(Applet, String)

Reads the parameter values from the file.

getUserData()

Gets the UserData value.

insets()

Returns the previously set insets, or the superclass' insets if none have been set.

minimumSize()

Returns preferredSize().

paint(Graphics)

Paints all children.

paintInterior(Graphics)

Called by paint, to allow subclasses to draw before their children are painted.

preferredHeight()

Gets the subclass' preferred height (default: 100).

preferredSize()

Returns the preferred size of this container.

preferredWidth()

Gets the subclass' preferred width (default: 100).

printAll(Graphics)

Disables double-buffering, and calls Container.printAll

processMouseEvent(MouseEvent)

Processes mouse events occurring on this component by dispatching them to any registered MouseListener objects.

processMouseMotionEvent(MouseEvent)

Processes mouse motion events occurring on this component by dispatching them to any registered MouseMotionListener objects.

repaint()

Overrides Component.repaint(), which sometimes doesn't call paint().

repaint(int, int, int, int)

Repaints part of the component by calling paint directly.

repaint(Rectangle)

Repaints part of the component by calling paint directly.

reshape(int, int, int, int)

Reshapes the Container to the specified bounding box.

setConverter(JCConverter)

Sets the converter to be used for converting strings to internal values.

setCursor(int)

Sets the cursor in the parent frame.

setInsets(Insets)

Sets the container's margins.

setPreferredSize(int, int)

Sets the container's preferred size.

setUserData(Object)

Sets an application-defined object that can be attached to the container.

updateParent()

Forces the parent to relayout this container.

validate()

Validates this Container and all of the components contained within it.

  public final static String version

  protected transient Applet applet

The parent applet.

  protected transient Image dblbuffer_image

Current double-buffer image.

  public JCContainer()

This creates an empty container. No parameters are read from an HTML file.

  public JCContainer(Applet applet,
                     String name)

This creates a container which reads parameters from the applet's HTML file.

Parameters:

applet - the applet whose PARAM tags are to be read

name - if this is not null, only parameters preceded by this name are read

See Also:

getParameter

  protected void getParameters()

Reads the parameter values from the HTML page using the container's applet. The values will override those previously set. Subclasses may override this method to set their own values - in this case, the method should first call super.getParameters().

  public void getParameters(Applet applet)

Reads the parameter values from the HTML page using the specified applet. The values will override those previously set.

See Also:

getParameter

  public void getParameters(Applet applet,
                            String file)

Reads the parameter values from the file. The values will override those previously set.

Parameters:

applet - if not null and in a browser, its documentBase() is used to construct a complete filename if necessary

file - if an http protocol is not specified (if a ":" is not present), the current working directory is used

  public static void setConverter(JCConverter c)

Sets the converter to be used for converting strings to internal values.

See Also:

JCConverter

  public static JCConverter getConverter()

Gets the converter used for converting strings to internal values.

See Also:

JCConverter

  public Object getUserData()

Gets the UserData value.

See Also:

setUserData

  public void setUserData(Object v)

Sets an application-defined object that can be attached to the container.

  public Component add(Component comp)

Adds the specified component to this container, if it is not already a child.

Overrides:

add in class Container

  public synchronized void enable()

Enables all the container's children.

Overrides:

enable in class Component

  public synchronized void disable()

Disables all the container's children.

Overrides:

disable in class Component

  public synchronized void repaint()

Overrides Component.repaint(), which sometimes doesn't call paint().

Overrides:

repaint in class Component

  public synchronized void repaint(Rectangle r)

Repaints part of the component by calling paint directly.

  public synchronized void repaint(int x,
                                   int y,
                                   int width,
                                   int height)

Repaints part of the component by calling paint directly.

Overrides:

repaint in class Component

  public void updateParent()

Forces the parent to relayout this container.

  public void validate()

Validates this Container and all of the components contained within it.

Overrides:

validate in class Container

  protected void enable11Events(long mask)

For JDK1.1, calls Component.enableEvents (which is final).

  public void addNotify()

Creates the Panel's peer.

Overrides:

addNotify in class Panel

  public AppletContext getAppletContext()

Gets the container's applet's context. The applet context lets an applet control the applet's environment which is usually the browser or the applet viewer.

Returns:

null if the container is not in an applet or the applet is not in a browser

See Also:

getAppletContext

  public Dimension minimumSize()

Returns preferredSize().

Overrides:

minimumSize in class Container

  public void setInsets(Insets insets)

Sets the container's margins. This value may be set from an HTML file using a PARAM tag with a "Insets" name and an Insets value.

See Also:

insets, Insets, toInsets

  public Insets insets()

Returns the previously set insets, or the superclass' insets if none have been set.

Overrides:

insets in class Container

See Also:

setInsets

  protected int preferredWidth()

Gets the subclass' preferred width (default: 100). The subclass should not include the inset sizes in its calculation; these will be added by JCContainer.

  protected int preferredHeight()

Gets the subclass' preferred height (default: 100). The subclass should not include the inset sizes in its calculation; these will be added by JCContainer.

  public void setPreferredSize(int w,
                               int h)

Sets the container's preferred size. If either dimension is set to BWTEnum.NOVALUE, it is calculated by the subclass. This value may be set from an HTML file using a PARAM tag with a "preferredWidth" name and an int value, and/or a "preferredHeight" name and an int value.

See Also:

preferredSize, toInt

  public Dimension preferredSize()

Returns the preferred size of this container. If the app has set the preferred size, it is returned. Otherwise the subclass' preferredWidth and/or preferredHeight method is called.

Overrides:

preferredSize in class Container

See Also:

setPreferredSize, preferredWidth, preferredHeight

  public synchronized void reshape(int x,
                                   int y,
                                   int width,
                                   int height)

Reshapes the Container to the specified bounding box.

Overrides:

reshape in class Component

  public void setCursor(int cursor)

Sets the cursor in the parent frame.

  public Component getComponent(int pos)

Gets the child at the specified position.

Overrides:

getComponent in class Container

  public int getComponent(Component comp)

Returns the position of the child, or BWTEnum.NOTFOUND.

  protected synchronized Graphics getDoubleBufferGraphics()

Creates a double-buffer image

Returns:

the Graphics instance for the image

  public synchronized void paintInterior(Graphics gc)

Called by paint, to allow subclasses to draw before their children are painted.

  protected void fillBackground(Graphics gc)

Fills the component with the background color (called by paint).

  public Rectangle getPaintRect()

Returns the area currently being painted, relative to the component's origin.

Returns:

null if no area is being drawn

See Also:

paint

  public void paint(Graphics gc)

Paints all children.

Overrides:

paint in class Container

  public void printAll(Graphics gc)

Disables double-buffering, and calls Container.printAll

Overrides:

printAll in class Component

  protected void processMouseEvent(MouseEvent mouse_ev)

Processes mouse events occurring on this component by dispatching them to any registered MouseListener objects.

Overrides:

processMouseEvent in class Component

  protected void processMouseMotionEvent(MouseEvent mouse_ev)

Processes mouse motion events occurring on this component by dispatching them to any registered MouseMotionListener objects.

Overrides:

processMouseMotionEvent in class Component

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