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|
/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: CanvasUtils.java,v $
*
* $Revision: 1.6 $
*
* last change: $Author: rt $ $Date: 2005-09-07 23:10:57 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
// UNO
import com.sun.star.uno.UnoRuntime;
import com.sun.star.uno.XComponentContext;
import com.sun.star.uno.AnyConverter;
import com.sun.star.uno.IQueryInterface;
import com.sun.star.lang.XInitialization;
import com.sun.star.lib.uno.helper.WeakBase;
// OOo AWT
import com.sun.star.awt.*;
// Canvas
import com.sun.star.rendering.*;
import com.sun.star.geometry.*;
// Java AWT
import java.awt.*;
import java.awt.image.*;
import java.awt.geom.*;
public class CanvasUtils
{
//
// Canvas utilities
// ================
//
public static java.awt.geom.AffineTransform makeTransform( AffineMatrix2D ooTransform )
{
return new AffineTransform( ooTransform.m00,
ooTransform.m10,
ooTransform.m01,
ooTransform.m11,
ooTransform.m02,
ooTransform.m12 );
}
public static AffineMatrix2D makeAffineMatrix2D( java.awt.geom.AffineTransform transform )
{
double[] matrix = new double[6];
transform.getMatrix( matrix );
return new AffineMatrix2D( matrix[0], matrix[2], matrix[4],
matrix[1], matrix[3], matrix[5] );
}
public static void initGraphics( Graphics2D graphics )
{
if( graphics != null )
{
java.awt.RenderingHints hints = new java.awt.RenderingHints(null);
boolean hq = true;
if( hq )
{
hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_FRACTIONALMETRICS,
java.awt.RenderingHints.VALUE_FRACTIONALMETRICS_ON ) );
// hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_ALPHA_INTERPOLATION,
// java.awt.RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY) );
hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_ALPHA_INTERPOLATION,
java.awt.RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED) );
// hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_INTERPOLATION,
// java.awt.RenderingHints.VALUE_INTERPOLATION_BICUBIC) );
hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_INTERPOLATION,
java.awt.RenderingHints.VALUE_INTERPOLATION_BILINEAR) );
// hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_RENDERING,
// java.awt.RenderingHints.VALUE_RENDER_QUALITY) );
hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_RENDERING,
java.awt.RenderingHints.VALUE_RENDER_SPEED) );
// hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_STROKE_CONTROL,
// java.awt.RenderingHints.VALUE_STROKE_NORMALIZE) );
hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_STROKE_CONTROL,
java.awt.RenderingHints.VALUE_STROKE_DEFAULT) );
hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_ANTIALIASING,
java.awt.RenderingHints.VALUE_ANTIALIAS_ON) );
}
else
{
hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_ALPHA_INTERPOLATION,
java.awt.RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED) );
hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_INTERPOLATION,
java.awt.RenderingHints.VALUE_INTERPOLATION_BILINEAR) );
hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_RENDERING,
java.awt.RenderingHints.VALUE_RENDER_SPEED) );
hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_STROKE_CONTROL,
java.awt.RenderingHints.VALUE_STROKE_DEFAULT) );
hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_ANTIALIASING,
java.awt.RenderingHints.VALUE_ANTIALIAS_OFF) );
}
// the least common denominator standard
hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_FRACTIONALMETRICS,
java.awt.RenderingHints.VALUE_FRACTIONALMETRICS_ON) );
hints.add( new java.awt.RenderingHints( java.awt.RenderingHints.KEY_TEXT_ANTIALIASING,
java.awt.RenderingHints.VALUE_TEXT_ANTIALIAS_ON) );
graphics.setRenderingHints( hints );
}
}
//----------------------------------------------------------------------------------
public static java.awt.geom.GeneralPath makeGenPathFromBezierPoints( RealBezierSegment2D [][] points )
{
java.awt.geom.GeneralPath path = new java.awt.geom.GeneralPath();
// extract every polygon into GeneralPath object
for( int i=0; i<points.length; ++i )
{
if( points[i].length > 0 )
path.moveTo((float) points[i][0].Px, (float) points[i][0].Py);
for( int j=1; j<points[i].length; ++j )
{
CanvasUtils.printLog( "makeGenPathFromBezierPoints: point added." );
path.curveTo((float)(points[i][j-1].C1x), (float)(points[i][j-1].C1y),
(float)(points[i][j-1].C2x), (float)(points[i][j-1].C2y),
(float) points[i][j].Px, (float) points[i][j].Py );
}
// TODO: closePath?
}
return path;
}
public static java.awt.geom.GeneralPath makeGenPathFromBezierPoly( com.sun.star.rendering.XBezierPolyPolygon2D poly )
{
try
{
com.sun.star.geometry.RealBezierSegment2D [][] points = poly.getBezierSegments(0,-1,0,-1);
return makeGenPathFromBezierPoints( points );
}
catch( com.sun.star.lang.IndexOutOfBoundsException e )
{
}
return new java.awt.geom.GeneralPath();
}
public static java.awt.geom.GeneralPath makeGenPathFromLinePoints( RealPoint2D [][] points )
{
java.awt.geom.GeneralPath path = new java.awt.geom.GeneralPath();
// extract every polygon into GeneralPath object
for( int i=0; i<points.length; ++i )
{
if( points[i].length > 0 )
path.moveTo((float) points[i][0].X, (float) points[i][0].Y);
for( int j=1; j<points[i].length; ++j )
{
CanvasUtils.printLog( "makeGenPathFromLinePoints: point (" +
points[i][j].X + "," + points[i][j].Y + ") added." );
path.lineTo((float) points[i][j].X, (float) points[i][j].Y );
}
// TODO: closePath?
}
return path;
}
public static java.awt.geom.GeneralPath makeGenPathFromLinePoly( com.sun.star.rendering.XLinePolyPolygon2D poly )
{
try
{
com.sun.star.geometry.RealPoint2D [][] points = poly.getPoints(0,-1,0,-1);
return makeGenPathFromLinePoints( points );
}
catch( com.sun.star.lang.IndexOutOfBoundsException e )
{
}
return new java.awt.geom.GeneralPath();
}
public static java.awt.geom.GeneralPath makeGeneralPath( com.sun.star.rendering.XPolyPolygon2D poly )
{
if( poly instanceof BezierPolyPolygon )
{
CanvasUtils.printLog( "makeGeneralPath: bezier impl used." );
return ((BezierPolyPolygon)poly).getJavaPath();
}
if( poly instanceof LinePolyPolygon )
{
CanvasUtils.printLog( "makeGeneralPath: line impl used." );
return ((LinePolyPolygon)poly).getJavaPath();
}
XBezierPolyPolygon2D bezierPoly = (XBezierPolyPolygon2D) UnoRuntime.queryInterface(XBezierPolyPolygon2D.class, poly);
if( bezierPoly != null )
{
// extract polygon data. Prefer bezier interface, because
// that's the more high-level data.
return makeGenPathFromBezierPoly( bezierPoly );
}
XLinePolyPolygon2D linePoly = (XLinePolyPolygon2D) UnoRuntime.queryInterface(XLinePolyPolygon2D.class, poly);
if( linePoly != null )
{
// extract polygon data. Fallback to line polygon, if no
// curves are available.
return makeGenPathFromLinePoly( linePoly );
}
// Only opaque general interface. No chance to get to the
// data. Empty path, then
CanvasUtils.printLog( "makeGeneralPath: Cannot access polygon data, given interface has class" + poly.getClass().getName() );
return new GeneralPath();
}
public static java.awt.image.BufferedImage getBufferedImage( com.sun.star.rendering.XBitmap bitmap )
{
if( bitmap instanceof CanvasBitmap )
{
CanvasUtils.printLog( "getBufferedImage: CanvasBitmap impl used." );
return ((CanvasBitmap)bitmap).getBufferedImage();
}
XIntegerBitmap integerBitmap = (XIntegerBitmap) UnoRuntime.queryInterface(XIntegerBitmap.class, bitmap);
if( integerBitmap != null )
{
// extract bitmap data. TODO.
return null;
}
// check other types. TODO.
return null;
}
public static byte [] int2byte( int [] input )
{
byte [] output = new byte[4*input.length];
int i, j;
for( i=0, j=0; i<input.length; ++i )
{
output[j] = (byte)(input[i] & 255);
output[j+1] = (byte)((input[i]/256) & 255);
output[j+2] = (byte)((input[i]/256/256) & 255);
output[j+3] = (byte)((input[i]/256/256/256) & 255);
j += 4;
}
return output;
}
public static int [] byte2int( byte [] input )
{
int [] output = new int[(input.length+3)/4];
int i, j;
for( i=0,j=0; j<output.length; ++j )
{
output[j] = input[i] + (input[i+1] + (input[i+2] + input[i+3]*256)*256)*256;
i += 4;
}
return output;
}
public static int javaRuleFromCompositeOp( byte compositeOp )
{
// TODO: Finish mapping of Canvas and Java compositing magics
int rule = java.awt.AlphaComposite.SRC_OVER;
switch( compositeOp )
{
case com.sun.star.rendering.CompositeOperation.CLEAR:
CanvasUtils.printLog( "javaRuleFromCompositeOp: clear selected" );
rule = java.awt.AlphaComposite.CLEAR;
break;
case com.sun.star.rendering.CompositeOperation.SOURCE:
CanvasUtils.printLog( "javaRuleFromCompositeOp: src selected" );
rule = java.awt.AlphaComposite.SRC;
break;
case com.sun.star.rendering.CompositeOperation.DESTINATION:
CanvasUtils.printLog( "javaRuleFromCompositeOp: dst selected" );
rule = java.awt.AlphaComposite.DST;
break;
case com.sun.star.rendering.CompositeOperation.OVER:
CanvasUtils.printLog( "javaRuleFromCompositeOp: over selected" );
rule = java.awt.AlphaComposite.SRC_OVER;
break;
case com.sun.star.rendering.CompositeOperation.UNDER:
CanvasUtils.printLog( "javaRuleFromCompositeOp: under selected" );
rule = java.awt.AlphaComposite.DST_OVER;
break;
case com.sun.star.rendering.CompositeOperation.INSIDE:
CanvasUtils.printLog( "javaRuleFromCompositeOp: inside selected" );
rule = java.awt.AlphaComposite.CLEAR;
break;
case com.sun.star.rendering.CompositeOperation.INSIDE_REVERSE:
CanvasUtils.printLog( "javaRuleFromCompositeOp: inReverse selected" );
rule = java.awt.AlphaComposite.CLEAR;
break;
case com.sun.star.rendering.CompositeOperation.OUTSIDE:
CanvasUtils.printLog( "javaRuleFromCompositeOp: outside selected" );
rule = java.awt.AlphaComposite.CLEAR;
break;
case com.sun.star.rendering.CompositeOperation.OUTSIDE_REVERSE:
CanvasUtils.printLog( "javaRuleFromCompositeOp: outReverse selected" );
rule = java.awt.AlphaComposite.CLEAR;
break;
case com.sun.star.rendering.CompositeOperation.XOR:
CanvasUtils.printLog( "javaRuleFromCompositeOp: xor selected" );
rule = java.awt.AlphaComposite.CLEAR;
break;
case com.sun.star.rendering.CompositeOperation.ADD:
CanvasUtils.printLog( "javaRuleFromCompositeOp: add selected" );
rule = java.awt.AlphaComposite.CLEAR;
break;
case com.sun.star.rendering.CompositeOperation.SATURATE:
CanvasUtils.printLog( "javaRuleFromCompositeOp: saturate selected" );
rule = java.awt.AlphaComposite.CLEAR;
break;
default:
CanvasUtils.printLog( "javaRuleFromCompositeOp: Unexpected compositing rule" );
break;
}
return rule;
}
public static java.awt.AlphaComposite makeAlphaComposite( byte compositeOp )
{
return java.awt.AlphaComposite.getInstance( javaRuleFromCompositeOp( compositeOp ) );
}
public static java.awt.AlphaComposite makeAlphaCompositeAlpha( byte compositeOp, double alpha )
{
return java.awt.AlphaComposite.getInstance( javaRuleFromCompositeOp( compositeOp ), (float)alpha );
}
// when given to setupGraphicsState, makes that method to also
// setup the Paint with the color specified in the render state.
public static final byte alsoSetupPaint=0;
// when given to setupGraphicsState, makes that method to _not_
// setup the Paint with the color specified in the render state.
public static final byte dontSetupPaint=1;
public static java.awt.geom.AffineTransform ViewConcatRenderTransform( ViewState viewState,
RenderState renderState )
{
// calculate overall affine transform
AffineTransform transform = makeTransform( viewState.AffineTransform );
transform.concatenate( makeTransform( renderState.AffineTransform ) );
printTransform( transform, "ViewConcatRenderTransform" );
return transform;
}
public static void setupGraphicsState( java.awt.Graphics2D graphics,
ViewState viewState,
RenderState renderState,
byte paintTouchMode )
{
// calculate overall affine transform
graphics.setTransform( ViewConcatRenderTransform(viewState, renderState ) );
// setup overall clip polyPolygon
if( viewState.Clip != null )
{
Area clipArea = new Area( makeGeneralPath( viewState.Clip ) );
if( renderState.Clip != null )
clipArea.intersect( new Area( makeGeneralPath( renderState.Clip ) ) );
graphics.setClip( clipArea );
}
else if( renderState.Clip != null )
{
Area clipArea = new Area( makeGeneralPath( renderState.Clip ) );
graphics.setClip( clipArea );
}
else
{
// TODO: HACK! Use true visible area here!
graphics.setClip( new java.awt.Rectangle(-1000000,-1000000,2000000,2000000) );
}
// setup current output color
// TODO: Complete color handling here
if( paintTouchMode == alsoSetupPaint )
{
switch( renderState.DeviceColor.length )
{
case 3:
CanvasUtils.printLog( "setupGraphicsState: Color(" +
renderState.DeviceColor[0] + "," +
renderState.DeviceColor[1] + "," +
renderState.DeviceColor[2] + ") set." );
graphics.setColor( new Color( (float)renderState.DeviceColor[0],
(float)renderState.DeviceColor[1],
(float)renderState.DeviceColor[2] ) );
break;
case 4:
CanvasUtils.printLog( "setupGraphicsState: Color(" +
renderState.DeviceColor[0] + "," +
renderState.DeviceColor[1] + "," +
renderState.DeviceColor[2] + "," +
renderState.DeviceColor[3] + ") set." );
graphics.setColor( new Color( (float)renderState.DeviceColor[0],
(float)renderState.DeviceColor[1],
(float)renderState.DeviceColor[2],
(float)renderState.DeviceColor[3] ) );
break;
default:
CanvasUtils.printLog( "setupGraphicsState: unexpected number of " +
renderState.DeviceColor.length + " color components!" );
break;
}
}
// setup current composite mode
graphics.setComposite( makeAlphaComposite( renderState.CompositeOperation ) );
}
public static void applyStrokeAttributes( java.awt.Graphics2D graphics,
StrokeAttributes attributes )
{
int cap = java.awt.BasicStroke.CAP_BUTT;
if( attributes.StartCapType != attributes.EndCapType )
CanvasUtils.printLog( "applyStrokeAttributes: different start and end caps are not yet supported!" );
if( attributes.LineArray.length != 0 )
CanvasUtils.printLog( "applyStrokeAttributes: multi-strokes are not yet supported!" );
if( attributes.StartCapType == PathCapType.BUTT )
cap = java.awt.BasicStroke.CAP_BUTT;
else if( attributes.StartCapType == PathCapType.ROUND )
cap = java.awt.BasicStroke.CAP_ROUND;
else if( attributes.StartCapType == PathCapType.SQUARE )
cap = java.awt.BasicStroke.CAP_SQUARE;
int join = java.awt.BasicStroke.JOIN_MITER;
if( attributes.JoinType == PathJoinType.MITER )
cap = java.awt.BasicStroke.JOIN_MITER;
else if( attributes.JoinType == PathJoinType.ROUND )
cap = java.awt.BasicStroke.JOIN_ROUND;
else if( attributes.JoinType == PathJoinType.BEVEL )
cap = java.awt.BasicStroke.JOIN_BEVEL;
else
CanvasUtils.printLog( "applyStrokeAttributes: current join type not yet supported!" );
float [] dashArray = null;
if( attributes.DashArray.length != 0 )
{
dashArray = new float [attributes.DashArray.length];
for( int i=0; i<attributes.DashArray.length; ++i )
dashArray[i] = (float)attributes.DashArray[i];
}
graphics.setStroke( new java.awt.BasicStroke( (float)attributes.StrokeWidth,
cap,
join,
(float)attributes.MiterLimit,
dashArray,
0) );
}
public static void setupGraphicsFont( java.awt.Graphics2D graphics,
ViewState viewState,
RenderState renderState,
com.sun.star.rendering.XCanvasFont xFont )
{
if( xFont instanceof CanvasFont )
{
CanvasUtils.printLog( "setupGraphicsFont: font impl used." );
graphics.setFont( ((CanvasFont)xFont).getFont() );
}
else
{
CanvasUtils.printLog( "setupGraphicsFont: creating Java font anew." );
CanvasFont canvasFont;
canvasFont = new CanvasFont( xFont.getFontRequest(), null );
graphics.setFont( canvasFont.getFont() );
}
}
static java.awt.geom.Rectangle2D.Double calcTransformedRectBounds( java.awt.geom.Rectangle2D.Double aRect,
AffineTransform aTransform )
{
// transform rect by given transformation
java.awt.geom.Point2D.Double aPointTopLeft = new java.awt.geom.Point2D.Double(aRect.x, aRect.y);
aTransform.transform(aPointTopLeft, aPointTopLeft);
java.awt.geom.Point2D.Double aPointTopRight = new java.awt.geom.Point2D.Double(aRect.x + aRect.width,
aRect.y);
aTransform.transform(aPointTopRight, aPointTopRight);
java.awt.geom.Point2D.Double aPointBottomLeft = new java.awt.geom.Point2D.Double(aRect.x,
aRect.y + aRect.height);
aTransform.transform(aPointBottomLeft, aPointBottomLeft);
java.awt.geom.Point2D.Double aPointBottomRight = new java.awt.geom.Point2D.Double(aRect.x + aRect.width,
aRect.y + aRect.height);
aTransform.transform(aPointBottomRight, aPointBottomRight);
// calc bounding rect of those four points
java.awt.geom.Point2D.Double aResTopLeft = new java.awt.geom.Point2D.Double( Math.min(aPointTopLeft.x,
Math.min(aPointTopRight.x,
Math.min(aPointBottomLeft.x,aPointBottomRight.x))),
Math.min(aPointTopLeft.y,
Math.min(aPointTopRight.y,
Math.min(aPointBottomLeft.y,aPointBottomRight.y))) );
java.awt.geom.Point2D.Double aResBottomRight = new java.awt.geom.Point2D.Double( Math.max(aPointTopLeft.x,
Math.max(aPointTopRight.x,
Math.max(aPointBottomLeft.x,aPointBottomRight.x))),
Math.max(aPointTopLeft.y,
Math.max(aPointTopRight.y,
Math.max(aPointBottomLeft.y,aPointBottomRight.y))) );
return new java.awt.geom.Rectangle2D.Double( aResTopLeft.x, aResTopLeft.y,
aResBottomRight.x - aResTopLeft.x,
aResBottomRight.y - aResTopLeft.y );
}
// Create a corrected view transformation out of the give one,
// which ensures that the rectangle given by (0,0) and
// attributes.untransformedSize is mapped with its left,top corner
// to (0,0) again. This is required to properly render sprite
// animations to buffer bitmaps.
public static ViewState createAnimationViewState( ViewState inputViewState,
AnimationAttributes attributes )
{
// TODO: Properly respect clip here. Might have to be transformed, too.
AffineTransform aViewTransform = makeTransform( inputViewState.AffineTransform );
// transform Rect(0,0,attributes.untransformedSize) by
// viewTransform
java.awt.geom.Rectangle2D.Double aTransformedRect =
calcTransformedRectBounds( new java.awt.geom.Rectangle2D.Double(0.0, 0.0,
attributes.UntransformedSize.Width,
attributes.UntransformedSize.Height),
aViewTransform );
printTransform( aViewTransform, "createAnimationViewState" );
CanvasUtils.printLog( "createAnimationViewState: transformed origin is: (" + aTransformedRect.x + ", " + aTransformedRect.y + ")" );
// now move resulting left,top point of bounds to (0,0)
AffineTransform animationViewTransform = new AffineTransform();
animationViewTransform.translate( -aTransformedRect.x, -aTransformedRect.y );
animationViewTransform.concatenate( aViewTransform );
printTransform( animationViewTransform, "createAnimationViewState" );
return new ViewState( makeAffineMatrix2D( animationViewTransform ), inputViewState.Clip );
}
public static void postRenderImageTreatment( Image buffer )
{
// TODO: This is specific to Sun's JREs 1.4 and upwards. Make this more portable
buffer.flush(); // as long as we force images to VRAM,
// we need to flush them afterwards, to
// avoid eating up all VRAM.
}
public static void printTransform( AffineTransform transform,
String stringPrefix )
{
CanvasUtils.printLog( stringPrefix + ": Transform is" );
double [] matrix = new double[6];
transform.getMatrix(matrix);
int i;
for( i=0; i<6; ++i )
System.err.print( matrix[i] + ", " );
CanvasUtils.printLog( "" );
}
public static void preCondition( boolean bCondition,
String methodName )
{
if( !bCondition )
printLog("Precondition violated: " + methodName);
}
public static void printLog( String s )
{
System.err.println( s );
}
}
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