Package com.iizigo.term.screen

Class ScreenDesigner

java.lang.Object
com.iizigo.term.screen.ScreenDesigner
All Implemented Interfaces:
IScreenDesigner, EventListener, FocusListener, KeyListener, MouseListener, MouseMoveListener, SWTEventListener
public class ScreenDesigner extends Object implements IScreenDesigner, FocusListener, KeyListener, MouseListener, MouseMoveListener
Screen designer interfaces to the TerminalWindow to perform drawing of rectangles and to interface with the mouse and keyboard. Note that the display cannot be drawn correctly if the font size is smaller that 4 pixels vertically or horizontally.
Author:
Christopher Mindus

  • Field Details

    • imageObserver

      public static final Container imageObserver
      The image observer.

    • repainter

      public final Runnable repainter
      The repainter.

  • Constructor Details

    • ScreenDesigner

      public ScreenDesigner(ITermEditor editor)
      Constructs the instance of the screen designer.
      Parameters:
      editor - Editor in question.

  • Method Details

    • setTerminalWindow

      public void setTerminalWindow(TerminalWindow window)
      Sets the TerminalWindow at creation of it.
      Specified by:
      setTerminalWindow in interface IScreenDesigner

    • assignProperty

      public void assignProperty(PropCnr propCnr)
      Assigns the verification property and starts listening to it.
      Parameters:
      propCnr - The property container.

    • dispose

      public void dispose()
      Disposes of the designer.

    • focusGained

      public void focusGained(FocusEvent e)
      Focus gained.
      Specified by:
      focusGained in interface FocusListener

    • focusLost

      public void focusLost(FocusEvent e)
      Focus is lost.
      Specified by:
      focusLost in interface FocusListener

    • isCursorPresent

      public boolean isCursorPresent()
      Cursor present (and blinking)?
      Specified by:
      isCursorPresent in interface IScreenDesigner

    • keyPressed

      public void keyPressed(KeyEvent e)
      Key pressed.
      Specified by:
      keyPressed in interface KeyListener

    • keyReleased

      public void keyReleased(KeyEvent e)
      Key released.
      Specified by:
      keyReleased in interface KeyListener

    • mouseDown

      public void mouseDown(MouseEvent e)
      Mouse pressed.
      Specified by:
      mouseDown in interface MouseListener

    • mouseDoubleClick

      public void mouseDoubleClick(MouseEvent e)
      Mouse double-click.
      Specified by:
      mouseDoubleClick in interface MouseListener

    • mouseUp

      public void mouseUp(MouseEvent e)
      Mouse released.
      Specified by:
      mouseUp in interface MouseListener

    • mouseMove

      public void mouseMove(MouseEvent e)
      Mouse move.
      Specified by:
      mouseMove in interface MouseMoveListener

    • getMarkingConstraints

      public Rectangle getMarkingConstraints()
      Gets the rectangle marking constraints. This is used for pop-up windows.
      Specified by:
      getMarkingConstraints in interface IScreenDesigner
      Returns:
      null If no constrains are present.

    • isHotSpotEnabled

      public boolean isHotSpotEnabled()
      Check for hotspot enabled.
      Specified by:
      isHotSpotEnabled in interface IScreenDesigner

    • drawLine

      public static int drawLine(Graphics2D g, int x1, int y1, int x2, int y2, int type, int phase)
      Draws a "Business Graphics" line between two points with the current color and the same behavior as for "Java lines".

      When not using Java 2, the line will be dotted if horizontal or vertical if the line type is not solid (=). The width will be 1.

      If the line is invisible, it won't be drawn!

      Valid line types are:

       SOLID           =       0
 ALTERNATE       =       1
 DOT             =       2
 SHORTDASH       =       3
 DASHDOT         =       4
 DOUBLEDOT       =       5
 LONGDASH        =       6
 DASHDOUBLEDOT   =       7
 INVISIBLE       =       8

      Returns:
      the phase of the line style.

    • paint

      public void paint(Graphics2D g, int leftMargin, int topMargin, int cxFont, int cyFont, int cxFontReal, int cyFontReal, int cxScreen, int cyScreen, Rectangle clipRect)
      Paints the Graphics once the screen is drawn, before the cursor.
      Specified by:
      paint in interface IScreenDesigner

    • getSelectedRectProps

      public LinkedHashSet<IScreenRectangle> getSelectedRectProps()
      Gets the currently selected properties for rectangles.
      Returns:
      Do not change the returned set (!) as it may be reused or cached for performance reasons.

    • getMouseHandle

      public int getMouseHandle(int x, int y, IScreenRectangle[] returnValue)
      Gets the mouse handle: -1 when not found, 0 for move, otherwise a size handle. All painted rectangles are checked.
      Parameters:
      x - X position, pixel.
      y - Y position, pixel.
      returnValue - Returned screen rectangle in [0].
      Returns:
      -1 for none, otherwise the handle.

    • paintFieldRect

      public void paintFieldRect(Graphics2D g, IScreenRectangle r, boolean isSelected, Rectangle clipRect, boolean isHostField, int xOffset, int yOffset)
      Paints a screen rectangle property.

    • isWrapped

      public boolean isWrapped(IScreenRectangle r)
      Checks if a rectangle is wrapped.
      Parameters:
      r - The rectangle to verify.
      Returns:
      true if wrapping screen.

    • drawHandle

      public void drawHandle(ScreenRectangleInfo rectInfo, int handle, Graphics2D g, Color c, int x, int y, boolean draw)
      Draws a handle at position.

    • hasMark

      public boolean hasMark()
      Checks if terminal has a mark.
      Returns:
      Mark flag.

    • hasSingleMark

      public boolean hasSingleMark()
      Checks if terminal has a single mark.
      Returns:
      true if one mark is present.

    • onDoubleClick

      public void onDoubleClick(int x, int y)
      Marks the host field.
      Specified by:
      onDoubleClick in interface IScreenDesigner

    • createHostFieldToolTip

      public static Composite createHostFieldToolTip(HostField hostField, Composite parent)
      Creates a tooltip composite for a host field.