Package net.sourceforge.jiu.gui.awt

Class JiuAwtFrame

java.lang.Object
java.awt.Component
java.awt.Container
java.awt.Window
java.awt.Frame
net.sourceforge.jiu.gui.awt.JiuAwtFrame
All Implemented Interfaces:
ActionListener, ComponentListener, ImageObserver, MenuContainer, Serializable, EventListener, Accessible, JiuInfo, ProgressListener
public class JiuAwtFrame extends Frame implements ActionListener, ComponentListener, JiuInfo, ProgressListener
The frame class for the AWT demo program jiuawt.
Since:
0.8.0
Author:
Marco Schmidt
See Also:

  • Field Details

    • APP_NAME

      public static final String APP_NAME
      The name of this application, jiuawt, plus the version number taken from JiuInfo. Example: jiuawt 0.8.0. Will be displayed in the title bar of this frame.

    • serialVersionUID

      static final long serialVersionUID
      See Also:

    • editor

      private EditorState editor

    • processor

      private AwtOperationProcessor processor

    • statusBar

      private Label statusBar

    • scrollPane

      private ScrollPane scrollPane

    • canvas

      private ImageCanvas canvas

  • Constructor Details

    • JiuAwtFrame

      public JiuAwtFrame(EditorState editorState)
      Create an object of this class, using the argument editor state. String resources to initialize the menu etc. will be taken from the EditorState object's Strings variable
      Parameters:
      editorState - EditorState object used by this frame

  • Method Details

    • actionPerformed

      public void actionPerformed(ActionEvent e)
      Processes event objects that get created when menu items are picked. Determines the MenuIndexConstants value for a given event object and calls the internal AwtOperationProcessor object's process method with the menu value. The operation will then be performed.
      Specified by:
      actionPerformed in interface ActionListener
      Parameters:
      e - the ActionEvent object

    • componentHidden

      public void componentHidden(ComponentEvent e)
      Specified by:
      componentHidden in interface ComponentListener

    • componentMoved

      public void componentMoved(ComponentEvent e)
      Specified by:
      componentMoved in interface ComponentListener

    • componentResized

      public void componentResized(ComponentEvent e)
      Specified by:
      componentResized in interface ComponentListener

    • componentShown

      public void componentShown(ComponentEvent e)
      Specified by:
      componentShown in interface ComponentListener

    • maximize

      public void maximize()
      Maximize the frame on the desktop. There is no such function in the 1.1 AWT (was added in 1.4), so this class determines the screen size and sets the frame to be a little smaller than that (to make up for task bars etc.). So this is just a heuristical approach.

    • showError

      public void showError(String text)
      Displays the argument text in a message box with error in the title bar.
      Parameters:
      text - the error message to be displayed

    • setDefaultCursor

      public void setDefaultCursor()
      Sets the current cursor to be Cursor.DEFAULT_CURSOR.

    • setOriginalSize

      public void setOriginalSize()
      If an image is currently loaded,

    • setProgress

      public void setProgress(int zeroBasedIndex, int totalItems)
      Description copied from interface: ProgressListener
      Sets a new progress level. If an operation consists of totalItems steps, which are numbered from 0 to totalItems - 1, this method can be called after the completion of each step.

      Example: if there are three steps and the first one is done, the parameters must be 0 and 3, which will indicated 33% completion. Parameters 1 and 3 mean 66%, 2 and 3 100%. If you use 3 and 3, an IllegalArgumentException will be thrown.

      Computes (float)(zeroBasedIndex + 1) / (float)totalItems and calls ProgressListener.setProgress(float) with that value.

      Specified by:
      setProgress in interface ProgressListener
      Parameters:
      zeroBasedIndex - the index of the step that was just completed
      totalItems - the number of steps in this operation

    • setProgress

      public void setProgress(float progress)
      Set a new progress status.
      Specified by:
      setProgress in interface ProgressListener
      Parameters:
      progress - float from 0.0f to 1.0f, indicating the progress between 0 and 100 percent

    • setStatusBar

      public void setStatusBar(String text)

    • setWaitCursor

      public void setWaitCursor()

    • showInfo

      public void showInfo(String title, String text)
      Shows a modal dialog with given title bar and message text.
      Parameters:
      title - will be displayed in the dialog's title bar
      text - will be displayed in the dialog's center part

    • updateCanvas

      public void updateCanvas()
      If there is an image loaded, forces a canvas redraw by calling repaint.

    • updateImage

      public void updateImage()
      Removes the current canvas from the frame (if there is an image loaded) and creates a new canvas for the current image.

    • updateStatusBar

      public void updateStatusBar()
      Creates a description string for the current image and sets the status bar to that text.

    • updateTitle

      public void updateTitle()
      Sets the frame's title bar to the application name, plus the file name of the currently loaded image file, plus the current zoom factor, plus an optional asterisk in case the image was modified but not yet saved.

    • zoomIn

      public void zoomIn()
      If an image is currently displayed, zoom in one level.

    • zoomOut

      public void zoomOut()
      If an image is currently displayed, zoom out one level.