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//
// System.Drawing.Test.LineLayout.jvm.cs
//
// Author:
// Konstantin Triger <kostat@mainsoft.com>
//
// Copyright (C) 2005 Mainsoft Corporation, (http://www.mainsoft.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Drawing.Drawing2D;
using font = java.awt.font;
using text = java.text;
using awt = java.awt;
using geom = java.awt.geom;
namespace System.Drawing.Text {
internal sealed class LineLayout {
#region Fields
readonly font.TextLayout _layout;
readonly float _accumulatedHeight;
readonly TextLineIterator _lineIter;
#endregion
#region ctor
internal LineLayout(font.TextLayout layout,
TextLineIterator lineIter,
float accumulatedHeight) {
_layout = layout;
_lineIter = lineIter;
_accumulatedHeight = accumulatedHeight;
}
#endregion
#region Properties
internal float AccumulatedHeight {
get { return _accumulatedHeight; }
}
internal float MeasureWidth {
get {
return _lineIter.PadWidth (Width);
}
}
internal float WidthPadding {
get {
return _lineIter.PadWidth (Width) - Width;
}
}
internal int CharacterCount {
get { return _layout.getCharacterCount(); }
}
internal float Ascent {
get { return _layout.getAscent(); }
}
internal float Descent {
get { return _layout.getDescent(); }
}
public float Leading {
get { return _layout.getLeading(); }
}
internal float NativeY {
get {
if (_lineIter.Format.IsVertical) {
float height = _lineIter.Height;
if (float.IsPositiveInfinity(height))
height = 0;
switch (_lineIter.Format.Alignment) {
case StringAlignment.Center:
return (height - Width) / 2;
case StringAlignment.Far:
return height - _layout.getVisibleAdvance () - WidthPadding;
default:
return WidthPadding;
}
}
else
return AccumulatedHeight + Ascent;
}
}
internal float NativeX {
get {
float width = _lineIter.Width;
if (float.IsPositiveInfinity(width))
width = 0;
if (_lineIter.Format.IsVertical)
return (_lineIter.Format.IsRightToLeft) ?
width - AccumulatedHeight - Ascent :
AccumulatedHeight + Leading + Descent;
else {
float xOffset;
switch ( _lineIter.Format.Alignment) {
case StringAlignment.Center:
xOffset = (width - Width) / 2;
break;
case StringAlignment.Far:
if (_lineIter.Format.IsRightToLeft)
xOffset = WidthPadding/2;
else
xOffset = width - _layout.getVisibleAdvance () - WidthPadding/2;
break;
default:
if (_lineIter.Format.IsRightToLeft)
xOffset = width - _layout.getVisibleAdvance () - WidthPadding/2;
else
xOffset = WidthPadding / 2;
break;
}
return xOffset;
}
}
}
internal float Height {
get {
return Ascent + Descent + Leading;
}
}
internal float Width {
get {
if (_lineIter.Format.MeasureTrailingSpaces)
if (!(_lineIter.Format.IsRightToLeft ^
(_lineIter.Format.Alignment == StringAlignment.Far)))
return _layout.getAdvance();
return _layout.getVisibleAdvance();
}
}
#endregion
#region Methods
internal void Draw(awt.Graphics2D g2d, float x, float y) {
if (_lineIter.Format.IsVertical)
_layout.draw (g2d, y + NativeY, -(x + NativeX));
else
_layout.draw(g2d, x + NativeX, y + NativeY );
}
internal awt.Shape GetOutline(float x, float y) {
geom.AffineTransform t = (geom.AffineTransform) _lineIter.Transform.clone();
if (_lineIter.Format.IsVertical)
t.translate(y + NativeY, -(x + NativeX));
else
t.translate(x + NativeX, y + NativeY);
return _layout.getOutline(t);
}
#endregion
}
}
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