org.eclipse.jface.text.source
Class ChangeRulerColumn

java.lang.Object
  org.eclipse.jface.text.source.ChangeRulerColumn

All Implemented Interfaces:

IChangeRulerColumn, IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension

public final class ChangeRulerColumn

extends Object

implements IVerticalRulerColumn, IVerticalRulerInfo, IVerticalRulerInfoExtension, IChangeRulerColumn

A vertical ruler column displaying line numbers and serving as a UI for quick diff. Clients usually instantiate and configure object of this class.

Since:

3.0

Field Summary

Fields inherited from interface org.eclipse.jface.text.source.IChangeRulerColumn

QUICK_DIFF_MODEL_ID

Constructor Summary

ChangeRulerColumn()

Method Summary

Control	createControl(CompositeRuler parentRuler, Composite parentControl) Creates the column's SWT control.
protected Color	getBackground(Display display) Returns the System background color for list widgets.
Control	getControl() Returns the column's SWT control.
IAnnotationHover	getHover() Returns the hover for this vertical ruler (column).
int	getLineOfLastMouseButtonActivity() Returns the line number of the last mouse button activity.
IAnnotationModel	getModel() Returns the model currently used by the receiver.
protected CompositeRuler	getParentRuler() Returns the parent (composite) ruler of this ruler column.
protected int	getVisibleLinesInViewport() Returns the viewport height in lines.
int	getWidth() Returns the width of this column's control.
protected void	handleDispose() Disposes the column's resources.
protected void	paintLine(int line, int y, int lineheight, GC gc, Display display)
protected void	postRedraw() Triggers a redraw in the display thread.
void	redraw() Redraws this column.
void	setAddedColor(Color addedColor) Sets the background color for added lines.
void	setBackground(Color background) Sets the background color for normal lines.
void	setChangedColor(Color changedColor) Sets the background color for changed lines.
void	setDeletedColor(Color deletedColor) Sets the color for the deleted lines indicator.
void	setFont(Font font) Sets the font of this ruler column.
void	setHover(IAnnotationHover hover) Sets the hover of this ruler column.
void	setModel(IAnnotationModel model) Associates an annotation model with this ruler column.
int	toDocumentLineNumber(int y_coordinate) Translates a y-coordinate of the ruler's SWT control into the according line number of the document of the connected text viewer.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChangeRulerColumn

public ChangeRulerColumn()

Method Detail

getBackground

protected Color getBackground(Display display)

Returns the System background color for list widgets.

Parameters:

display - the display the drawing occurs on

Returns:

the System background color for list widgets

createControl

public Control createControl(CompositeRuler parentRuler,
                             Composite parentControl)

Description copied from interface: IVerticalRulerColumn

Creates the column's SWT control.

Specified by:

createControl in interface IVerticalRulerColumn

Parameters:

parentRuler - the parent ruler of this column

parentControl - the control of the parent ruler

Returns:

the column's SWT control

handleDispose

protected void handleDispose()

Disposes the column's resources.

getVisibleLinesInViewport

protected int getVisibleLinesInViewport()

Returns the viewport height in lines.

Returns:

the viewport height in lines

redraw

public void redraw()

Description copied from interface: IVerticalRulerColumn

Redraws this column.

Specified by:

redraw in interface IVerticalRulerColumn

setFont

public void setFont(Font font)

Description copied from interface: IVerticalRulerColumn

Sets the font of this ruler column.

Specified by:

setFont in interface IVerticalRulerColumn

Parameters:

font - the new font of the ruler column

getParentRuler

protected CompositeRuler getParentRuler()

Returns the parent (composite) ruler of this ruler column.

Returns:

the parent ruler

Since:

3.0

paintLine

protected void paintLine(int line,
                         int y,
                         int lineheight,
                         GC gc,
                         Display display)

getLineOfLastMouseButtonActivity

public int getLineOfLastMouseButtonActivity()

Description copied from interface: IVerticalRulerInfo

Returns the line number of the last mouse button activity. Based on the input document of the connected text viewer. The smallest possible line number is 0.

Specified by:

getLineOfLastMouseButtonActivity in interface IVerticalRulerInfo

Returns:

the line number of the last mouse button activity

toDocumentLineNumber

public int toDocumentLineNumber(int y_coordinate)

Description copied from interface: IVerticalRulerInfo

Translates a y-coordinate of the ruler's SWT control into the according line number of the document of the connected text viewer.

Specified by:

toDocumentLineNumber in interface IVerticalRulerInfo

Parameters:

y_coordinate - a y-coordinate of the ruler's SWT control

Returns:

the line number of that coordinate or -1 if that coordinate does not correspond to a valid document line

getHover

public IAnnotationHover getHover()

Description copied from interface: IVerticalRulerInfoExtension

Returns the hover for this vertical ruler (column).

Specified by:

getHover in interface IVerticalRulerInfoExtension

Returns:

the hover for this column

setHover

public void setHover(IAnnotationHover hover)

Description copied from interface: IChangeRulerColumn

Sets the hover of this ruler column.

Specified by:

setHover in interface IChangeRulerColumn

Parameters:

hover - the hover that will produce hover information text for this ruler column

setModel

public void setModel(IAnnotationModel model)

Description copied from interface: IVerticalRulerColumn

Associates an annotation model with this ruler column. A value null is acceptable and clears the ruler.

Specified by:

setModel in interface IVerticalRulerColumn

Parameters:

model - the new annotation model, may be null

setBackground

public void setBackground(Color background)

Description copied from interface: IChangeRulerColumn

Sets the background color for normal lines. The color has to be disposed of by the caller when the receiver is no longer used.

Specified by:

setBackground in interface IChangeRulerColumn

Parameters:

background - the new color to be used as standard line background

setAddedColor

public void setAddedColor(Color addedColor)

Description copied from interface: IChangeRulerColumn

Sets the background color for added lines. The color has to be disposed of by the caller when the receiver is no longer used.

Specified by:

setAddedColor in interface IChangeRulerColumn

Parameters:

addedColor - the new color to be used for the added lines background

setChangedColor

public void setChangedColor(Color changedColor)

Description copied from interface: IChangeRulerColumn

Sets the background color for changed lines. The color has to be disposed of by the caller when the receiver is no longer used.

Specified by:

setChangedColor in interface IChangeRulerColumn

Parameters:

changedColor - the new color to be used for the changed lines background

setDeletedColor

public void setDeletedColor(Color deletedColor)

Description copied from interface: IChangeRulerColumn

Sets the color for the deleted lines indicator. The color has to be disposed of by the caller when the receiver is no longer used.

Specified by:

setDeletedColor in interface IChangeRulerColumn

Parameters:

deletedColor - the new color to be used for the deleted lines indicator.

getModel

public IAnnotationModel getModel()

Description copied from interface: IVerticalRulerInfoExtension

Returns the model currently used by the receiver.

Specified by:

getModel in interface IVerticalRulerInfoExtension

Returns:

the model of the receiver, or null if no model is installed.

getControl

public Control getControl()

Description copied from interface: IVerticalRulerColumn

Returns the column's SWT control.

Specified by:

getControl in interface IVerticalRulerColumn

Returns:

the column's SWT control

getWidth

public int getWidth()

Description copied from interface: IVerticalRulerColumn

Returns the width of this column's control.

Specified by:

getWidth in interface IVerticalRulerColumn

Returns:

the width of this column's control

postRedraw

protected final void postRedraw()

Triggers a redraw in the display thread.