mirror of git://gcc.gnu.org/git/gcc.git
707 lines
19 KiB
Java
707 lines
19 KiB
Java
/* QtGraphics.java --
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.java.awt.peer.qt;
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import java.awt.AlphaComposite;
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import java.awt.BasicStroke;
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import java.awt.Color;
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import java.awt.Composite;
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import java.awt.GradientPaint;
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import java.awt.GraphicsConfiguration;
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import java.awt.Font;
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import java.awt.FontMetrics;
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import java.awt.Graphics;
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import java.awt.Graphics2D;
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import java.awt.Image;
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import java.awt.RenderingHints;
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import java.awt.Rectangle;
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import java.awt.Paint;
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import java.awt.Polygon;
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import java.awt.Shape;
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import java.awt.Stroke;
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import java.awt.font.FontRenderContext;
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import java.awt.font.GlyphVector;
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import java.awt.geom.AffineTransform;
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import java.awt.geom.PathIterator;
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import java.awt.geom.Arc2D;
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import java.awt.geom.Ellipse2D;
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import java.awt.geom.Line2D;
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import java.awt.geom.Rectangle2D;
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import java.awt.geom.RoundRectangle2D;
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import java.awt.image.BufferedImage;
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import java.awt.image.BufferedImageOp;
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import java.awt.image.ImageObserver;
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import java.awt.image.RenderedImage;
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import java.awt.image.renderable.RenderableImage;
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import java.text.AttributedCharacterIterator;
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import java.text.CharacterIterator;
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import java.util.Map;
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/**
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* QtGraphics is an abstract implementation of Graphics2D over a QPainter
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* object. This is to be subclassed for different drawing contexts,
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* which may have different requirements.
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*/
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public abstract class QtGraphics extends Graphics2D
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{
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/**
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* Native QPainter pointer.
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*/
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protected long nativeObject;
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private static final AffineTransform identity = new AffineTransform();
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// Graphics state
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protected Font font; // Current font.
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protected Color color, bgcolor; // Current color and background color.
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protected Shape clip; // Current clipping area.
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protected Shape initialClip; // Initial clip bounds
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protected AffineTransform xform; // Current transform
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protected Stroke currentStroke; // the current stroke
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protected boolean nativeStroking; // whether we're using Qt's stroking or not
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protected Composite composite; // current composite operator
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protected double currentAlpha; // current alpha
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protected Paint currentPaint; // current paint
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protected RenderingHints renderingHints; // the rendering hints.
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/**
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* Owner Graphics, used by subcontext created by create()
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* to avoid GC of the original context.
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*/
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Graphics parent;
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/**
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* Do-nothing constructor.
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*/
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QtGraphics()
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{
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}
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/**
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* Copying constructor - used by copy() and subclasses.
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*/
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QtGraphics(QtGraphics parent)
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{
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cloneNativeContext( parent );
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setFont( parent.getFont() );
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setAlpha( parent.currentAlpha );
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setBackground( parent.getBackground() );
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setColor( parent.getColor() );
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setClip( (initialClip = parent.getClip()) );
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setTransform( parent.getTransform() );
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setStroke( parent.getStroke() );
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setComposite( parent.getComposite() );
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setPaint( parent.getPaint() );
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setRenderingHints( parent.getRenderingHints() );
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}
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/**
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* Set up some generic defaults.
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*/
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protected void setup()
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{
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font = new Font ("Dialog", Font.PLAIN, 12);
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setTransform( identity );
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setStroke( new BasicStroke() );
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renderingHints = new RenderingHints( null );
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}
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public synchronized native void delete();
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public void dispose()
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{
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}
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// ********************** etc *******************************
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private void resetClip()
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{
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AffineTransform current = getTransform();
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setTransform( identity );
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setClip( initialClip );
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setTransform( current );
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}
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protected native void initImage(QtImage image);
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protected native void initVolatileImage(QtVolatileImage image);
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// Creates a new native QPainter object on the same context.
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private native void cloneNativeContext( QtGraphics parent );
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private native void setColor(int r, int g, int b, int a);
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private native void drawNative( QPainterPath p );
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private native void fillNative( QPainterPath p );
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private native void setClipNative( QPainterPath p );
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private native void setClipRectNative( int x, int y, int w, int h );
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private native void intersectClipNative( QPainterPath p );
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private native void intersectClipRectNative( int x, int y, int w, int h );
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private native void setQtTransform(QMatrix m);
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private native void setNativeStroke(QPen p);
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private native void setNativeComposite(int alphaMode);
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private native void drawStringNative(String string, double x, double y);
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private native void setLinearGradient(int r1, int g1, int b1,
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int r2, int g2, int b2,
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double x1, double y1,
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double x2, double y2, boolean cyclic);
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private native void setAlphaNative(double alpha);
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private native void setFontNative(QtFontPeer font);
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private native QPainterPath getClipNative();
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void setAlpha(double alpha)
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{
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currentAlpha = alpha;
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setAlphaNative(currentAlpha);
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}
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// ************ Public methods *********************
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/**
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* Context-sensitive methods are declared abstract.
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*/
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public abstract Graphics create();
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public abstract void copyArea(int x, int y, int width, int height,
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int dx, int dy);
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public abstract GraphicsConfiguration getDeviceConfiguration();
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public Color getColor()
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{
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return new Color(color.getRed(), color.getGreen(), color.getBlue());
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}
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public void setColor(Color c)
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{
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if( c == null )
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c = Color.white;
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this.color = c;
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int alpha = (int)(c.getAlpha() * currentAlpha);
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setColor(c.getRed(), c.getGreen(), c.getBlue(), alpha);
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}
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public void setBackground(Color color)
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{
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bgcolor = new Color(color.getRed(), color.getGreen(), color.getBlue());
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}
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public Color getBackground()
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{
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return new Color(bgcolor.getRed(), bgcolor.getGreen(), bgcolor.getBlue());
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}
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public void setPaintMode()
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{
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}
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public void setXORMode(Color color)
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{
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// FIXME
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}
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public boolean hit(Rectangle rect, Shape s, boolean onStroke)
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{
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if( onStroke )
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{
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Shape stroked = currentStroke.createStrokedShape( s );
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return stroked.intersects( (double)rect.x, (double)rect.y,
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(double)rect.width, (double)rect.height );
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}
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return s.intersects( (double)rect.x, (double)rect.y,
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(double)rect.width, (double)rect.height );
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}
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// ******************* Font ***********************
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public Font getFont()
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{
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return font;
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}
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public void setFont(Font font)
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{
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if( font == null )
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return;
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this.font = font;
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if(font.getPeer() != null && font.getPeer() instanceof QtFontPeer)
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setFontNative( (QtFontPeer)font.getPeer() );
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}
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public FontMetrics getFontMetrics(Font font)
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{
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return new QtFontMetrics(font, this);
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}
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// ***************** Clipping *********************
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/**
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* Intersects the current clip with the shape
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*/
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public void clip(Shape s)
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{
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intersectClipNative( new QPainterPath( s ) );
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}
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public void clipRect(int x, int y, int width, int height)
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{
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intersectClipRectNative( x, y, width, height );
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}
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public void setClip(int x, int y, int width, int height)
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{
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setClipRectNative( x, y, width, height );
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}
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public Shape getClip()
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{
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return getClipNative().getPath();
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}
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public native Rectangle getClipBounds();
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/**
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* Sets the clip
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*/
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public void setClip(Shape clip)
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{
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if (clip == null)
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resetClip();
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else
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setClipNative(new QPainterPath( clip ));
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}
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// ***************** Drawing primitives *********************
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public void draw(Shape s)
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{
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if( nativeStroking )
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drawNative( new QPainterPath(s) );
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else
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fillNative( new QPainterPath( currentStroke.createStrokedShape( s ) ) );
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}
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public void fill(Shape s)
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{
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fillNative( new QPainterPath(s) );
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}
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public void drawLine(int x1, int y1, int x2, int y2)
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{
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if( nativeStroking )
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drawNative( new QPainterPath((double)x1, (double)y1, (double)x2, (double)y2, true) );
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else
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draw( new Line2D.Double((double)x1, (double)y1, (double)x2, (double)y2) );
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}
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public void drawRect(int x, int y, int width, int height)
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{
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if( nativeStroking )
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drawNative( new QPainterPath((double)x, (double)y,
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(double)width, (double)height) );
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else
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fillNative( new QPainterPath
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( currentStroke.createStrokedShape
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(new Rectangle2D.Double
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((double)x, (double)y,
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(double)width, (double)height) ) ) );
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}
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public void fillRect(int x, int y, int width, int height)
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{
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fillNative( new QPainterPath( x, y, width, height ) );
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}
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public void clearRect(int x, int y, int width, int height)
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{
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Color c = color;
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setColor( bgcolor ); // FIXME
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fillRect( x, y, width, height );
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setColor( c );
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}
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public void drawRoundRect(int x, int y, int width, int height,
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int arcWidth, int arcHeight)
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{
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draw( new RoundRectangle2D.Double(x, y, width, height,
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arcWidth, arcHeight) );
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}
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public void fillRoundRect(int x, int y, int width, int height,
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int arcWidth, int arcHeight)
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{
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fill( new RoundRectangle2D.Double(x, y, width, height,
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arcWidth, arcHeight) );
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}
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public void drawOval(int x, int y, int width, int height)
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{
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draw( new Ellipse2D.Double((double)x, (double)y,
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(double)width, (double)height) );
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}
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public void fillOval(int x, int y, int width, int height)
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{
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fill( new Ellipse2D.Double(x, y, width, height) );
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}
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public void drawArc(int x, int y, int width, int height,
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int arcStart, int arcAngle)
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{
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draw( new Arc2D.Double(x, y, width, height, arcStart, arcAngle,
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Arc2D.OPEN) );
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}
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public void fillArc(int x, int y, int width, int height,
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int arcStart, int arcAngle)
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{
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fill( new Arc2D.Double(x, y, width, height, arcStart, arcAngle,
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Arc2D.CHORD) );
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}
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public void drawPolyline(int xPoints[], int yPoints[], int npoints)
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{
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for( int i = 0; i < npoints - 1; i++)
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drawLine(xPoints[i], yPoints[i], xPoints[i + 1], yPoints[i + 1]);
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}
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public void drawPolygon(int xPoints[], int yPoints[], int npoints)
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{
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draw( new Polygon(xPoints, yPoints, npoints) );
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}
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public void fillPolygon(int xPoints[], int yPoints[], int npoints)
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{
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fill( new Polygon(xPoints, yPoints, npoints) );
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}
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public native void fill3DRect(int x, int y, int width, int height, boolean raised);
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public native void draw3DRect(int x, int y, int width, int height, boolean raised);
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// *********************** Text rendering *************************
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public void drawString(String string, int x, int y)
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{
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drawStringNative(string, (double)x, (double)y);
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}
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public void drawString(String string, float x, float y)
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{
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drawStringNative(string, (double)x, (double)y);
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}
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public void drawString (AttributedCharacterIterator ci, int x, int y)
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{
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// FIXME - to something more correct ?
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String s = "";
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for(char c = ci.first(); c != CharacterIterator.DONE; c = ci.next())
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s += c;
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drawString(s, x, y);
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}
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public void drawString(AttributedCharacterIterator ci,
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float x, float y)
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{
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// FIXME - to something more correct ?
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String s = "";
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for(char c = ci.first(); c != CharacterIterator.DONE; c = ci.next())
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s += c;
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drawString(s, x, y);
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}
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public void drawGlyphVector(GlyphVector v, float x, float y)
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{
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throw new RuntimeException("Not implemented");
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}
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// ******************* Image drawing ******************************
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public boolean drawImage(Image image,
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AffineTransform Tx,
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ImageObserver obs)
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{
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if (image instanceof QtImage)
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return ((QtImage)image).drawImage(this, new QMatrix( Tx ), obs);
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return (new QtImage(image.getSource())).drawImage(this,
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new QMatrix( Tx ),
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obs);
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}
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public boolean drawImage(Image image, int x, int y, Color bgcolor,
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ImageObserver observer)
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{
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if (image instanceof QtImage)
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return ((QtImage)image).drawImage (this, x, y, bgcolor, observer);
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return (new QtImage(image.getSource())).drawImage (this, x, y,
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bgcolor, observer);
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}
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public boolean drawImage(Image image,
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int dx1, int dy1, int dx2, int dy2,
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int sx1, int sy1, int sx2, int sy2,
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Color bgcolor, ImageObserver observer)
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{
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if (image instanceof QtImage)
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return ((QtImage)image).drawImage(this, dx1, dy1, dx2, dy2,
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sx1, sy1, sx2, sy2, bgcolor, observer);
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return (new QtImage(image.getSource())).drawImage(this, dx1, dy1,
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dx2, dy2,
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sx1, sy1, sx2, sy2,
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bgcolor, observer);
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}
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public boolean drawImage(Image image, int x, int y,
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int width, int height, Color bgcolor,
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ImageObserver observer)
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{
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if (image instanceof QtImage)
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return ((QtImage)image).drawImage (this, x, y, width, height,
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bgcolor, observer);
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return (new QtImage(image.getSource())).drawImage (this, x, y,
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width, height,
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bgcolor, observer);
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}
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public boolean drawImage(Image image, int x, int y, int width, int height,
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ImageObserver observer)
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{
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return drawImage(image, x, y, width, height, null, observer);
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}
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public boolean drawImage(Image image, int x, int y, ImageObserver observer)
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{
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return drawImage(image, x, y, null, observer);
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}
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public boolean drawImage(Image image, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, ImageObserver observer)
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{
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return drawImage(image, dx1, dy1, dx2, dy2,
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sx1, sy1, sx2, sy2, null, observer);
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}
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// *********************** Transform methods *************************
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public AffineTransform getTransform()
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{
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return new AffineTransform( xform );
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}
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public void setTransform(AffineTransform Tx)
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{
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xform = new AffineTransform( Tx );
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setQtTransform( new QMatrix( xform ) );
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}
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public void rotate(double theta)
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{
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xform.rotate( theta );
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setQtTransform( new QMatrix( xform ) );
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}
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public void rotate(double theta, double x, double y)
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{
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xform.rotate(theta, x, y);
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setQtTransform( new QMatrix( xform ) );
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}
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public void scale(double sx, double sy)
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{
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xform.scale(sx, sy);
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setQtTransform( new QMatrix( xform ) );
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}
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public void shear(double shx, double shy)
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{
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xform.shear(shx, shy);
|
|
setQtTransform( new QMatrix( xform ) );
|
|
}
|
|
|
|
public void transform(AffineTransform Tx)
|
|
{
|
|
xform.concatenate( Tx );
|
|
setQtTransform( new QMatrix( xform ) );
|
|
}
|
|
|
|
public void translate(double tx, double ty)
|
|
{
|
|
xform.translate( tx, ty );
|
|
setQtTransform( new QMatrix( xform ) );
|
|
}
|
|
|
|
public void translate(int x, int y)
|
|
{
|
|
translate((double)x, (double)y);
|
|
}
|
|
|
|
// *************** Stroking, Filling, Compositing *****************
|
|
public void setStroke(Stroke s)
|
|
{
|
|
try // ..to convert the stroke into a native one.
|
|
{
|
|
QPen pen = new QPen( s );
|
|
nativeStroking = true;
|
|
setNativeStroke( pen );
|
|
setColor( color );
|
|
}
|
|
catch (IllegalArgumentException e)
|
|
{
|
|
nativeStroking = false;
|
|
}
|
|
currentStroke = s;
|
|
}
|
|
|
|
public Stroke getStroke()
|
|
{ // FIXME: return copy?
|
|
return currentStroke;
|
|
}
|
|
|
|
public void setComposite(Composite comp)
|
|
{
|
|
if( comp == null)
|
|
{
|
|
setNativeComposite( AlphaComposite.SRC_OVER );
|
|
return;
|
|
}
|
|
|
|
if( comp instanceof AlphaComposite )
|
|
{
|
|
if( ((AlphaComposite)comp).getRule() != AlphaComposite.XOR )
|
|
setAlpha( ((AlphaComposite)comp).getAlpha() );
|
|
setNativeComposite( ((AlphaComposite)comp).getRule() );
|
|
composite = comp;
|
|
}
|
|
else
|
|
throw new UnsupportedOperationException("We don't support custom"+
|
|
" composites yet.");
|
|
}
|
|
|
|
public Composite getComposite()
|
|
{
|
|
return composite;
|
|
}
|
|
|
|
public void setPaint(Paint p)
|
|
{
|
|
if( p == null )
|
|
return;
|
|
|
|
// FIXME
|
|
currentPaint = p;
|
|
if( p instanceof GradientPaint )
|
|
{
|
|
GradientPaint lg = (GradientPaint)p;
|
|
setLinearGradient(lg.getColor1().getRed(), lg.getColor1().getGreen(),
|
|
lg.getColor1().getBlue(), lg.getColor2().getRed(),
|
|
lg.getColor2().getGreen(), lg.getColor2().getBlue(),
|
|
lg.getPoint1().getX(), lg.getPoint1().getY(),
|
|
lg.getPoint2().getX(), lg.getPoint2().getY(),
|
|
lg.isCyclic() );
|
|
return;
|
|
}
|
|
if( p instanceof Color )
|
|
{
|
|
setColor((Color) p);
|
|
return;
|
|
}
|
|
throw new UnsupportedOperationException("We don't support custom"+
|
|
" paints yet.");
|
|
}
|
|
|
|
public Paint getPaint()
|
|
{
|
|
// FIXME
|
|
return currentPaint;
|
|
}
|
|
|
|
// ********************** Rendering Hints *************************
|
|
|
|
public void addRenderingHints(Map hints)
|
|
{
|
|
renderingHints.putAll( hints );
|
|
}
|
|
|
|
public Object getRenderingHint(RenderingHints.Key hintKey)
|
|
{
|
|
return renderingHints.get( hintKey );
|
|
}
|
|
|
|
public RenderingHints getRenderingHints()
|
|
{
|
|
return new RenderingHints( renderingHints );
|
|
}
|
|
|
|
public void setRenderingHints(Map hints)
|
|
{
|
|
renderingHints = new RenderingHints( hints );
|
|
updateRenderingHints();
|
|
}
|
|
|
|
public void setRenderingHint(RenderingHints.Key hintKey, Object hintValue)
|
|
{
|
|
renderingHints.put( hintKey, hintValue );
|
|
updateRenderingHints();
|
|
}
|
|
|
|
private void updateRenderingHints()
|
|
{
|
|
// FIXME - update native settings.
|
|
}
|
|
|
|
////////////////////////////// unimplemented /////////////////////
|
|
|
|
public FontRenderContext getFontRenderContext()
|
|
{
|
|
throw new UnsupportedOperationException("Not implemented yet");
|
|
}
|
|
|
|
public void drawRenderableImage(RenderableImage image, AffineTransform xform)
|
|
{
|
|
throw new UnsupportedOperationException("Not implemented yet");
|
|
}
|
|
|
|
public void drawRenderedImage(RenderedImage image, AffineTransform xform)
|
|
{
|
|
throw new UnsupportedOperationException("Not implemented yet");
|
|
}
|
|
|
|
public void drawImage(BufferedImage image, BufferedImageOp op, int x, int y)
|
|
{
|
|
throw new UnsupportedOperationException("Not implemented yet");
|
|
}
|
|
}
|
|
|