javax.swing.text
Class GlyphView.GlyphPainter
- GlyphView
An abstract base implementation for a glyph painter for
GlyphView
.
float | getHeight(GlyphView view) - Returns the full height of the rendered text.
|
float | getSpan(GlyphView view, int p0, int p1, TabExpander te, float x) - Determine the span of the glyphs from location
p0 to
location p1 .
|
Shape | modelToView(GlyphView view, int pos, Position.Bias b, Shape a) - Maps a position in the document into the coordinate space of the View.
|
void | paint(GlyphView view, Graphics g, Shape a, int p0, int p1) - Paints the glyphs.
|
clone , equals , finalize , getClass , hashCode , notify , notifyAll , toString , wait , wait , wait |
GlyphPainter
public GlyphPainter()
Creates a new GlyphPainer
.
getHeight
public float getHeight(GlyphView view)
Returns the full height of the rendered text.
- the full height of the rendered text
getSpan
public float getSpan(GlyphView view,
int p0,
int p1,
TabExpander te,
float x)
Determine the span of the glyphs from location p0
to
location p1
. If te
is not null
,
then TABs are expanded using this TabExpander
.
The parameter x
is the location at which the view is
located (this is important when using TAB expansion).
view
- the glyph viewp0
- the starting location in the document modelte
- the tab expander to usex
- the location at which the view is located
- the span of the glyphs from location
p0
to
location p1
, possibly using TAB expansion
modelToView
public Shape modelToView(GlyphView view,
int pos,
Position.Bias b,
Shape a)
throws BadLocationException
Maps a position in the document into the coordinate space of the View.
The output rectangle usually reflects the font height but has a width
of zero.
Position.Bias.Backward
depending on the preferred
direction bias. If null
this defaults to
Position.Bias.Forward
view
- the glyph viewpos
- the position of the character in the modela
- the area that is occupied by the view
- a rectangle that gives the location of the document position
inside the view coordinate space
BadLocationException
- if pos
is invalidIllegalArgumentException
- if b is not one of the above listed
valid values
paint
public void paint(GlyphView view,
Graphics g,
Shape a,
int p0,
int p1)
Paints the glyphs.
view
- the glyph view to paintg
- the graphics context to use for paintinga
- the allocation of the glyph viewp0
- the start position (in the model) from which to paintp1
- the end position (in the model) to which to paint
GlyphView.java -- A view to render styled text
Copyright (C) 2005 Free Software Foundation, Inc.
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