/*
Copyright (C) 2009 - 2011 Volker Berlin (i-net software)
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
Jeroen Frijters
jeroen@frijters.net
*/
package sun.font;
import java.awt.Font;
import java.awt.Rectangle;
import java.awt.font.FontRenderContext;
import java.awt.geom.GeneralPath;
import java.awt.geom.Point2D.Float;
import cli.System.Drawing.Bitmap;
import cli.System.Drawing.CharacterRange;
import cli.System.Drawing.FontFamily;
import cli.System.Drawing.FontStyle;
import cli.System.Drawing.Graphics;
import cli.System.Drawing.RectangleF;
import cli.System.Drawing.Region;
import cli.System.Drawing.SizeF;
import cli.System.Drawing.StringFormat;
import cli.System.Drawing.StringFormatFlags;
import cli.System.Drawing.StringTrimming;
import cli.System.Drawing.Drawing2D.PixelOffsetMode;
import cli.System.Drawing.Drawing2D.SmoothingMode;
import cli.System.Drawing.Text.TextRenderingHint;
import ikvm.internal.NotYetImplementedError;
/**
* A FontStrike implementation that based on .NET fonts.
* It replace the equals naming Sun class
*/
public class PhysicalStrike extends FontStrike{
private static final Bitmap BITMAP = new Bitmap( 1, 1 );
private final Font font;
private final FontFamily family;
private final FontStyle style;
private final FontRenderContext frc;
private final float size2D;
private final float factor;
private StrikeMetrics strike;
public PhysicalStrike(Font font, FontFamily family, FontStyle style, FontRenderContext frc){
this.font = font;
this.family = family;
this.style = style;
this.frc = frc;
this.size2D = font.getNetFont().get_Size();
this.factor = size2D / family.GetEmHeight(style);
}
/**
* {@inheritDoc}
*/
@Override
Float getCharMetrics(char ch){
return new Float(getCodePointAdvance(ch), 0);
}
/**
* Create a Graphics with the settings for the given FontRenderContext
*
* @return
*/
private static Graphics createGraphics(FontRenderContext frc){
Graphics g = Graphics.FromImage(BITMAP);
boolean fm = frc.usesFractionalMetrics();
g.set_SmoothingMode(SmoothingMode.wrap(fm ? SmoothingMode.None : SmoothingMode.AntiAlias));
g.set_PixelOffsetMode(PixelOffsetMode.wrap(fm ? PixelOffsetMode.None : PixelOffsetMode.HighQuality));
g.set_TextRenderingHint(TextRenderingHint.wrap(fm ? TextRenderingHint.SingleBitPerPixelGridFit : TextRenderingHint.AntiAliasGridFit));
return g;
}
/**
* {@inheritDoc}
*/
@Override
float getCodePointAdvance( int cp ) {
StringFormat format = new StringFormat(StringFormat.get_GenericTypographic());
format.set_FormatFlags( StringFormatFlags.wrap( StringFormatFlags.MeasureTrailingSpaces | StringFormatFlags.NoWrap |
StringFormatFlags.FitBlackBox ));
format.set_Trimming( StringTrimming.wrap( StringTrimming.None ) );
format.SetMeasurableCharacterRanges(new CharacterRange[] {new CharacterRange(0, 1)});
Graphics g = createGraphics( frc );
Region[] regions = g.MeasureCharacterRanges(String.valueOf((char)cp), font.getNetFont(),
new RectangleF(0, 0, Integer.MAX_VALUE, Integer.MAX_VALUE), format);
SizeF size = regions[0].GetBounds(g).get_Size();
regions[0].Dispose();
return frc.usesFractionalMetrics() ? size.get_Width() : Math.round(size.get_Width());
}
/**
* {@inheritDoc}
*/
@Override
StrikeMetrics getFontMetrics(){
if(strike == null){
float ascent = family.GetCellAscent(style) * factor;
float descent = family.GetCellDescent(style) * factor;
float height = family.GetLineSpacing(style) * factor;
float leading = height - ascent - descent;
strike = new StrikeMetrics(
0, -ascent - leading/2,
0, descent - leading/2,
0.25f, 0,
0, leading,
size2D * 2, 0);
}
return strike;
}
/**
* {@inheritDoc}
*/
@Override
float getGlyphAdvance(int glyphCode){
return getCodePointAdvance( glyphCode );
}
/**
* {@inheritDoc}
*/
@Override
void getGlyphImageBounds(int glyphcode, Float pt, Rectangle result){
throw new NotYetImplementedError();
}
/**
* {@inheritDoc}
*/
@Override
long getGlyphImagePtr(int glyphcode){
throw new NotYetImplementedError();
}
/**
* {@inheritDoc}
*/
@Override
void getGlyphImagePtrs(int[] glyphCodes, long[] images, int len){
throw new NotYetImplementedError();
}
/**
* {@inheritDoc}
*/
@Override
Float getGlyphMetrics(int glyphcode){
return getCharMetrics((char)glyphcode);
}
/**
* {@inheritDoc}
*/
@Override
GeneralPath getGlyphOutline(int glyphCode, float x, float y){
throw new NotYetImplementedError();
}
/**
* {@inheritDoc}
*/
@Override
java.awt.geom.Rectangle2D.Float getGlyphOutlineBounds(int glyphCode){
throw new NotYetImplementedError();
}
/**
* {@inheritDoc}
*/
@Override
GeneralPath getGlyphVectorOutline(int[] glyphs, float x, float y){
throw new NotYetImplementedError();
}
/**
* {@inheritDoc}
*/
@Override
public int getNumGlyphs(){
throw new NotYetImplementedError();
}
}