Documentation of 'CH.ifa.draw.framework.Figure' Java class
Figure
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CH.ifa.draw.framework

Interface Figure

    • Field Detail

      • POPUP_MENU

        static final java.lang.String POPUP_MENU
        Constant that allows to identify a popup menu assigned as an attribute.
        See Also:
        Constant Field Values

    • Method Detail

      • moveBy

        void moveBy(int dx,
            int dy)
        Moves the Figure to a new location.
        Parameters:
        x - the x delta
        y - the y delta

      • basicDisplayBox

        void basicDisplayBox(java.awt.Point origin,
                     java.awt.Point corner)
        Changes the display box of a figure. This method is always implemented in figure subclasses. It only changes the displaybox and does not announce any changes. It is usually not called by the client. Clients typically call displayBox to change the display box.
        Parameters:
        origin - the new origin
        corner - the new corner
        See Also:
        displayBox(java.awt.Point, java.awt.Point)

      • displayBox

        void displayBox(java.awt.Point origin,
                java.awt.Point corner)
        Changes the display box of a figure. Clients usually invoke this method. It changes the display box and announces the corresponding changes.
        Parameters:
        origin - the new origin
        corner - the new corner
        See Also:
        displayBox(java.awt.Point, java.awt.Point)

      • draw

        void draw(java.awt.Graphics g)
        Draws the figure.
        Parameters:
        g - the Graphics to draw into

      • handles

        java.util.Vector handles()
        Returns the handles used to manipulate the figure. Handles is a Factory Method for creating handle objects.
        Returns:
        a Vector of handles
        See Also:
        Handle

      • size

        java.awt.Dimension size()
        Gets the size of the figure

      • center

        java.awt.Point center()
        Gets the figure's center

      • isEmpty

        boolean isEmpty()
        Checks if the Figure should be considered as empty.

      • figures

        FigureEnumeration figures()
        Returns an Enumeration of the figures contained in this figure

      • findFigureInside

        Figure findFigureInside(int x,
                        int y)
        Returns the figure that contains the given point.

      • containsPoint

        boolean containsPoint(int x,
                      int y)
        Checks if a point is inside the figure.

      • clone

        java.lang.Object clone()
        Returns a Clone of this figure

      • displayBox

        void displayBox(java.awt.Rectangle r)
        Changes the display box of a figure. This is a convenience method. Implementors should only have to override basicDisplayBox
        See Also:
        displayBox(java.awt.Point, java.awt.Point)

      • includes

        boolean includes(Figure figure)
        Checks whether the given figure is contained in this figure.

      • decompose

        FigureEnumeration decompose()
        Decomposes a figure into its parts. A figure is considered as a part of itself.

      • addToContainer

        void addToContainer(FigureChangeListener c)
        Sets the Figure's container and registers the container as a figure change listener. A figure's container can be any kind of FigureChangeListener. A figure is not restricted to have a single container.

      • removeFromContainer

        void removeFromContainer(FigureChangeListener c)
        Removes a figure from the given container and unregisters it as a change listener.

      • addFigureChangeListener

        void addFigureChangeListener(FigureChangeListener l)
        Adds a listener for this figure.

      • removeFigureChangeListener

        void removeFigureChangeListener(FigureChangeListener l)
        Removes a listener for this figure.

      • release

        void release()
        Releases a figure's resources. Release is called when a figure is removed from a drawing. Informs the listeners that the figure is removed by calling figureRemoved.

      • invalidate

        void invalidate()
        Invalidates the figure. This method informs its listeners that its current display box is invalid and should be refreshed.

      • willChange

        void willChange()
        Informes that a figure is about to change such that its display box is affected. Here is an example of how it is used together with changed() 
         public void move(int x, int y) {
      willChange();
      // change the figure's location
      changed();
  }
        See Also:
        invalidate(), changed()

      • changed

        void changed()
        Informes that a figure has changed its display box. This method also triggers an update call for its registered observers.
        See Also:
        invalidate(), willChange()

      • canConnect

        boolean canConnect()
        Checks if this figure can be connected

      • connectorAt

        Connector connectorAt(int x,
                      int y)
        Gets a connector for this figure at the given location. A figure can have different connectors at different locations.

      • connectorVisibility

        void connectorVisibility(boolean isVisible)
        Sets whether the connectors should be visible. Connectors can be optionally visible. Implement this method and react on isVisible to turn the connectors on or off.

      • connectionInsets

        java.awt.Insets connectionInsets()
        Returns the connection inset. This is only a hint that connectors can use to determine the connection location. The inset defines the area where the display box of a figure should not be connected.

      • connectedTextLocator

        Locator connectedTextLocator(Figure text)
        Returns the locator used to located connected text.

      • getAttribute

        java.lang.Object getAttribute(java.lang.String name)
        Returns the named attribute or null if a a figure doesn't have an attribute. All figures support the attribute names FillColor and FrameColor

      • setAttribute

        void setAttribute(java.lang.String name,
                  java.lang.Object value)
        Sets the named attribute to the new value
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