/** Paints the glyphs representing the given range. */
public void paint(GlyphView v, Graphics g, Shape a, int p0, int p1) {
sync(v);
Segment text;
TabExpander expander = v.getTabExpander();
Rectangle alloc = (a instanceof Rectangle) ? (Rectangle) a : a.getBounds();
// determine the x coordinate to render the glyphs
int x = alloc.x;
int p = v.getStartOffset();
int[] justificationData = getJustificationData(v);
if (p != p0) {
text = v.getText(p, p0);
int width = Utilities.getTabbedTextWidth(v, text, metrics, x, expander, p, justificationData);
x += width;
SegmentCache.releaseSharedSegment(text);
}
// determine the y coordinate to render the glyphs
int y = alloc.y + metrics.getHeight() - metrics.getDescent();
// render the glyphs
text = v.getText(p0, p1);
g.setFont(metrics.getFont());
Utilities.drawTabbedText(v, text, x, y, g, expander, p0, justificationData);
SegmentCache.releaseSharedSegment(text);
}
public Shape modelToView(GlyphView v, int pos, Position.Bias bias, Shape a)
throws BadLocationException {
sync(v);
Rectangle alloc = (a instanceof Rectangle) ? (Rectangle) a : a.getBounds();
int p0 = v.getStartOffset();
int p1 = v.getEndOffset();
TabExpander expander = v.getTabExpander();
Segment text;
if (pos == p1) {
// The caller of this is left to right and borders a right to
// left view, return our end location.
return new Rectangle(alloc.x + alloc.width, alloc.y, 0, metrics.getHeight());
}
if ((pos >= p0) && (pos <= p1)) {
// determine range to the left of the position
text = v.getText(p0, pos);
int[] justificationData = getJustificationData(v);
int width =
Utilities.getTabbedTextWidth(v, text, metrics, alloc.x, expander, p0, justificationData);
SegmentCache.releaseSharedSegment(text);
return new Rectangle(alloc.x + width, alloc.y, 0, metrics.getHeight());
}
throw new BadLocationException("modelToView - can't convert", p1);
}
/**
* Determines the best location (in the model) to break the given view. This method attempts to
* break on a whitespace location. If a whitespace location can't be found, the nearest character
* location is returned.
*
* @param v the view
* @param p0 the location in the model where the fragment should start its representation >= 0
* @param pos the graphic location along the axis that the broken view would occupy >= 0; this may
* be useful for things like tab calculations
* @param len specifies the distance into the view where a potential break is desired >= 0
* @return the model location desired for a break
* @see View#breakView
*/
public int getBoundedPosition(GlyphView v, int p0, float x, float len) {
sync(v);
TabExpander expander = v.getTabExpander();
Segment s = v.getText(p0, v.getEndOffset());
int[] justificationData = getJustificationData(v);
int index =
Utilities.getTabbedTextOffset(
v, s, metrics, (int) x, (int) (x + len), expander, p0, false, justificationData);
SegmentCache.releaseSharedSegment(s);
int p1 = p0 + index;
return p1;
}
/**
* Provides a mapping from the view coordinate space to the logical coordinate space of the model.
*
* @param v the view containing the view coordinates
* @param x the X coordinate
* @param y the Y coordinate
* @param a the allocated region to render into
* @param biasReturn always returns <code>Position.Bias.Forward</code> as the zero-th element of
* this array
* @return the location within the model that best represents the given point in the view
* @see View#viewToModel
*/
public int viewToModel(GlyphView v, float x, float y, Shape a, Position.Bias[] biasReturn) {
sync(v);
Rectangle alloc = (a instanceof Rectangle) ? (Rectangle) a : a.getBounds();
int p0 = v.getStartOffset();
int p1 = v.getEndOffset();
TabExpander expander = v.getTabExpander();
Segment text = v.getText(p0, p1);
int[] justificationData = getJustificationData(v);
int offs =
Utilities.getTabbedTextOffset(
v, text, metrics, alloc.x, (int) x, expander, p0, justificationData);
SegmentCache.releaseSharedSegment(text);
int retValue = p0 + offs;
if (retValue == p1) {
// No need to return backward bias as GlyphPainter1 is used for
// ltr text only.
retValue--;
}
biasReturn[0] = Position.Bias.Forward;
return retValue;
}
