info.bioinfweb.tic.toolkit

Class DefaultSWTComposite

java.lang.Object

org.eclipse.swt.widgets.Widget

org.eclipse.swt.widgets.Control

org.eclipse.swt.widgets.Scrollable

org.eclipse.swt.widgets.Composite

org.eclipse.swt.widgets.Canvas

info.bioinfweb.tic.toolkit.AbstractSWTWidget

info.bioinfweb.tic.toolkit.DefaultSWTComposite

All Implemented Interfaces:

SWTToolkitComponent, ToolkitComponent, java.util.EventListener, org.eclipse.swt.events.PaintListener, org.eclipse.swt.graphics.Drawable, org.eclipse.swt.internal.SWTEventListener

Direct Known Subclasses:

DirectPaintingSWTScrollContainer

public class DefaultSWTComposite
extends AbstractSWTWidget

The default SWT widget implementation to be associated with a TICComponent.

It uses the TICComponent.paint(TICPaintEvent) to draw the widget.

Since TIC 3.0.0 optionally shifting the paint coordinate origin is possible to model direct scrolling (without being nested within a scroll container). This is especially relevant for large components in SWT since the component size is limited to 32767 (2^15 - 1) on some operating systems. For components that directly implement scrolling behavior the properties getScrollOffsetX() and getScrollOffsetY() can be used.

Author:

Ben Stöver

Module:

info.bioinfweb.tic.swt

Field Summary

Fields inherited from class org.eclipse.swt.widgets.Composite

embeddedHandle

Fields inherited from class org.eclipse.swt.widgets.Widget

handle

Constructor Summary

Constructors

Constructor and Description
DefaultSWTComposite(TICComponent ticComponent, org.eclipse.swt.widgets.Composite parent, int style)

Method Summary

Modifier and Type	Method and Description
org.eclipse.swt.graphics.Point	computeSize(int wHint, int hHint)
org.eclipse.swt.graphics.Point	computeSize(int wHint, int hHint, boolean changed)
protected TICComponent	getOutputComponent() This method may be overwritten be inherited classes to paint a TIC component that is not the associated independent component, e.g.
protected int	getScrollOffsetX() This method can be overwritten be inherited classes to provide direct scrolling.
protected int	getScrollOffsetY() This method can be overwritten be inherited classes to provide direct scrolling.
org.eclipse.swt.widgets.Control	getSWTComponent()
void	paintControl(org.eclipse.swt.events.PaintEvent e) Fire a TIC paint event internally to let the implementing class draw on a buffered image and than draws that image into the SWT graphics context.

Methods inherited from class info.bioinfweb.tic.toolkit.AbstractSWTWidget

getIndependentComponent

Methods inherited from class org.eclipse.swt.widgets.Canvas

drawBackground, getCaret, getIME, scroll, setCaret, setFont, setIME

Methods inherited from class org.eclipse.swt.widgets.Composite

changed, checkSubclass, drawBackground, getBackgroundMode, getChildren, getLayout, getLayoutDeferred, getTabList, isLayoutDeferred, layout, layout, layout, layout, layout, setBackgroundMode, setFocus, setLayout, setLayoutDeferred, setTabList

Methods inherited from class org.eclipse.swt.widgets.Scrollable

computeTrim, getClientArea, getHorizontalBar, getScrollbarsMode, getVerticalBar

Methods inherited from class org.eclipse.swt.widgets.Control

addControlListener, addDragDetectListener, addFocusListener, addGestureListener, addHelpListener, addKeyListener, addMenuDetectListener, addMouseListener, addMouseMoveListener, addMouseTrackListener, addMouseWheelListener, addPaintListener, addTouchListener, addTraverseListener, dragDetect, dragDetect, forceFocus, getAccessible, getBackground, getBackgroundImage, getBorderWidth, getBounds, getCursor, getDragDetect, getEnabled, getFont, getForeground, getLayoutData, getLocation, getMenu, getMonitor, getOrientation, getParent, getRegion, getShell, getSize, getTextDirection, getToolTipText, getTouchEnabled, getVisible, internal_dispose_GC, internal_new_GC, isEnabled, isFocusControl, isReparentable, isVisible, moveAbove, moveBelow, pack, pack, print, redraw, redraw, removeControlListener, removeDragDetectListener, removeFocusListener, removeGestureListener, removeHelpListener, removeKeyListener, removeMenuDetectListener, removeMouseListener, removeMouseMoveListener, removeMouseTrackListener, removeMouseWheelListener, removePaintListener, removeTouchListener, removeTraverseListener, requestLayout, setBackground, setBackgroundImage, setBounds, setBounds, setCapture, setCursor, setDragDetect, setEnabled, setForeground, setLayoutData, setLocation, setLocation, setMenu, setOrientation, setParent, setRedraw, setRegion, setSize, setSize, setTextDirection, setToolTipText, setTouchEnabled, setVisible, toControl, toControl, toDisplay, toDisplay, traverse, traverse, traverse, update

Methods inherited from class org.eclipse.swt.widgets.Widget

addDisposeListener, addListener, checkWidget, dispose, getData, getData, getDisplay, getListeners, getStyle, isAutoDirection, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, removeListener, reskin, setData, setData, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface info.bioinfweb.tic.toolkit.SWTToolkitComponent

assignSize, getLocationInParent, getTargetToolkit, getToolkitSize, isFocusOwner, repaint, requestFocus

Methods inherited from interface org.eclipse.swt.graphics.Drawable

isAutoScalable

Constructor Detail

DefaultSWTComposite

public DefaultSWTComposite(TICComponent ticComponent,
                           org.eclipse.swt.widgets.Composite parent,
                           int style)

Method Detail

getSWTComponent

public org.eclipse.swt.widgets.Control getSWTComponent()

getScrollOffsetX

protected int getScrollOffsetX()

This method can be overwritten be inherited classes to provide direct scrolling. This default implementation always returns 0.

Returns:

the paint offset on x

getScrollOffsetY

protected int getScrollOffsetY()

This method can be overwritten be inherited classes to provide direct scrolling. This default implementation always returns 0.

Returns:

the paint offset on y

getOutputComponent

protected TICComponent getOutputComponent()

This method may be overwritten be inherited classes to paint a TIC component that is not the associated independent component, e.g. for direct scrolling of another TICComponent. This default implementation returns the same instance of AbstractSWTWidget.getIndependentComponent().

Returns:

the TIC component to provide the paint method used by this toolkit component

paintControl

public void paintControl(org.eclipse.swt.events.PaintEvent e)

Fire a TIC paint event internally to let the implementing class draw on a buffered image and than draws that image into the SWT graphics context.

Note that the TIC paint event will always cover a rectangle which is extended by one pixel to the left and top compared to the SWT paint event. That is done to solve problems with anti-aliased lines passing the bounds of that rectangle.

computeSize

public org.eclipse.swt.graphics.Point computeSize(int wHint,
                                                  int hHint)

Overrides:

computeSize in class org.eclipse.swt.widgets.Control

computeSize

public org.eclipse.swt.graphics.Point computeSize(int wHint,
                                                  int hHint,
                                                  boolean changed)

Overrides:

computeSize in class org.eclipse.swt.widgets.Control