org.eclipse.contribution.visualiser.views
Class VisualiserCanvas

java.lang.Object
  extended byorg.eclipse.swt.widgets.Widget
      extended byorg.eclipse.swt.widgets.Control
          extended byorg.eclipse.swt.widgets.Scrollable
              extended byorg.eclipse.swt.widgets.Composite
                  extended byorg.eclipse.swt.widgets.Canvas
                      extended byorg.eclipse.contribution.visualiser.views.VisualiserCanvas
All Implemented Interfaces:
org.eclipse.swt.graphics.Drawable

public class VisualiserCanvas
extends org.eclipse.swt.widgets.Canvas

This class is the core of the visualiser rendering. It manages the view's drawing surface, providing double buffering, scaling, scrollbar management, keyboard traversal support, and tooltip management. It delegates to implementations of the IVisualiserRenderer interface to actually render the columns.

Author:
mchapman

Field Summary
static org.eclipse.swt.graphics.Color VIS_BG_COLOUR
           
 
Fields inherited from class org.eclipse.swt.widgets.Control
handle
 
Constructor Summary
VisualiserCanvas(org.eclipse.swt.widgets.Composite parent, Visualiser vis)
           
 
Method Summary
 void dispose()
           
 void redraw(java.util.List data)
          This is the main route into this class.
 void zoomIn()
          Zoom in and repaint, if not at maximum zoom already
 void zoomOut()
          Zoom out and repaint, if not at minumum zoom already
 
Methods inherited from class org.eclipse.swt.widgets.Canvas
getCaret, scroll, setCaret, setFont
 
Methods inherited from class org.eclipse.swt.widgets.Composite
checkSubclass, computeSize, getChildren, getLayout, getTabList, layout, layout, setFocus, setLayout, setTabList
 
Methods inherited from class org.eclipse.swt.widgets.Scrollable
computeTrim, getClientArea, getHorizontalBar, getVerticalBar
 
Methods inherited from class org.eclipse.swt.widgets.Control
addControlListener, addFocusListener, addHelpListener, addKeyListener, addMouseListener, addMouseMoveListener, addMouseTrackListener, addPaintListener, addTraverseListener, computeSize, forceFocus, getAccessible, getBackground, getBorderWidth, getBounds, getEnabled, getFont, getForeground, getLayoutData, getLocation, getMenu, getMonitor, getParent, getShell, getSize, getToolTipText, getVisible, internal_dispose_GC, internal_new_GC, isEnabled, isFocusControl, isReparentable, isVisible, moveAbove, moveBelow, pack, pack, redraw, redraw, removeControlListener, removeFocusListener, removeHelpListener, removeKeyListener, removeMouseListener, removeMouseMoveListener, removeMouseTrackListener, removePaintListener, removeTraverseListener, setBackground, setBounds, setBounds, setCapture, setCursor, setEnabled, setForeground, setLayoutData, setLocation, setLocation, setMenu, setParent, setRedraw, setSize, setSize, setToolTipText, setVisible, toControl, toControl, toDisplay, toDisplay, traverse, update
 
Methods inherited from class org.eclipse.swt.widgets.Widget
addDisposeListener, addListener, checkWidget, getData, getData, getDisplay, getStyle, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, removeListener, setData, setData, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

VIS_BG_COLOUR

public static org.eclipse.swt.graphics.Color VIS_BG_COLOUR
Constructor Detail

VisualiserCanvas

public VisualiserCanvas(org.eclipse.swt.widgets.Composite parent,
                        Visualiser vis)
Parameters:
parent -
vis -
Method Detail

redraw

public void redraw(java.util.List data)
This is the main route into this class. It is called every time the data to be displayed changes

Parameters:
data -

zoomIn

public void zoomIn()
Zoom in and repaint, if not at maximum zoom already


zoomOut

public void zoomOut()
Zoom out and repaint, if not at minumum zoom already


dispose

public void dispose()