Class WrappedPlainView

public WrappedPlainView(Element elem)

Creates a new View instance.

Parameters:

elem - an Element value

public WrappedPlainView(Element elem,
                        boolean wordWrap)

protected int calculateBreakPosition(int p0,
                                     int p1)

Calculates the break position for the text between model positions p0 and p1. Will break on word boundaries or character boundaries depending on the break argument given in construction of this WrappedPlainView. Used by the nested WrappedLine class to determine when to start the next logical line.

Parameters:

p0 - the start model position

p1 - the end model position

Returns:

the model position at which to break the text

public void changedUpdate(DocumentEvent e,
                          Shape a,
                          ViewFactory f)

Called when the portion of the Document that this View is responsible for changes. Overridden so that the view factory creates WrappedLine views.

Overrides:

changedUpdate in interface View

protected void drawLine(int p0,
                        int p1,
                        Graphics g,
                        int x,
                        int y)

Draws a line of text, suppressing white space at the end and expanding tabs. Calls drawSelectedText and drawUnselectedText.

Parameters:

p0 - starting document position to use

p1 - ending document position to use

g - graphics context

x - starting x position

y - starting y position

protected int drawSelectedText(Graphics g,
                               int x,
                               int y,
                               int p0,
                               int p1)
            throws BadLocationException

Renders the range of text as selected text. Just paints the text in the color specified by the host component. Assumes the highlighter will render the selected background.

Parameters:

g - the graphics context

x - the starting X coordinate

y - the starting Y coordinate

p0 - the starting model location

p1 - the ending model location

Returns:

the X coordinate of the end of the text

Throws:

BadLocationException - if the given range is invalid

protected int drawUnselectedText(Graphics g,
                                 int x,
                                 int y,
                                 int p0,
                                 int p1)
            throws BadLocationException

Renders the range of text as normal unhighlighted text.

Parameters:

g - the graphics context

x - the starting X coordinate

y - the starting Y coordinate

p0 - the starting model location

p1 - the end model location

Returns:

the X location of the end off the range

Throws:

BadLocationException - if the range given is invalid

protected final Segment getLineBuffer()

Provides access to the Segment used for retrievals from the Document.

Returns:

the Segment.

public float getMaximumSpan(int axis)

Determines the maximum span along the given axis. Implemented to cache the font metrics and then call the super classes method.

Overrides:

getMaximumSpan in interface BoxView

public float getMinimumSpan(int axis)

Determines the minimum span along the given axis. Implemented to cache the font metrics and then call the super classes method.

Overrides:

getMinimumSpan in interface BoxView

public float getPreferredSpan(int axis)

Determines the preferred span along the given axis. Implemented to cache the font metrics and then call the super classes method.

Overrides:

getPreferredSpan in interface BoxView

protected int getTabSize()

Returns the tab size for the Document based on PlainDocument.tabSizeAttribute, defaulting to 8 if this property is not defined

Returns:

the tab size.

public void insertUpdate(DocumentEvent e,
                         Shape a,
                         ViewFactory f)

Called when something was inserted. Overridden so that the view factory creates WrappedLine views.

Overrides:

insertUpdate in interface View

protected void loadChildren(ViewFactory f)

Loads the children to initiate the view. Called by setParent. Creates a WrappedLine for each child Element.

Overrides:

loadChildren in interface CompositeView

public float nextTabStop(float x,
                         int tabStop)

Returns the next tab stop position after a given reference position. This implementation ignores the tabStop argument.

Specified by:

nextTabStop in interface TabExpander

Parameters:

x - the current x position in pixels

tabStop - the position within the text stream that the tab occured at

public void paint(Graphics g,
                  Shape a)

Renders the Element that is associated with this View. Caches the metrics and then calls super.paint to paint all the child views.

Overrides:

paint in interface BoxView

Parameters:

g - the Graphics context to render to

a - the allocated region for the Element

public void removeUpdate(DocumentEvent e,
                         Shape a,
                         ViewFactory f)

Called when something is removed. Overridden so that the view factory creates WrappedLine views.

Overrides:

removeUpdate in interface View

public void setSize(float width,
                    float height)

Sets the size of the View. Implemented to update the metrics and then call super method.

Overrides:

setSize in interface BoxView