mirror of git://gcc.gnu.org/git/gcc.git
123 lines
4.0 KiB
Java
123 lines
4.0 KiB
Java
/* ComponentGraphicsCopy.java
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Copyright (C) 2006 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.gtk;
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import java.awt.Color;
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import java.awt.Image;
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import java.awt.Rectangle;
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import java.awt.Shape;
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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.image.RenderedImage;
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import java.awt.image.ImageObserver;
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/**
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* Implementation of Graphics2D for Components for servers which
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* do not have xrender.
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*
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* A mirrored GtkImage of the component is stored in memory
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* and copied back. Yay.
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*/
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public class ComponentGraphicsCopy extends CairoSurfaceGraphics
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{
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private GtkComponentPeer component;
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/**
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* GtkImage sharing its data buffer with this Cairo surface.
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*/
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private GtkImage gtkimage;
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private int width, height;
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native void getPixbuf( GtkComponentPeer component, GtkImage image );
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native void copyPixbuf( GtkComponentPeer component, GtkImage image,
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int x, int y, int w, int h );
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public ComponentGraphicsCopy(int width, int height,
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GtkComponentPeer component)
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{
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super( new CairoSurface( width, height ) );
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this.component = component;
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this.width = width;
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this.height = height;
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gtkimage = surface.getGtkImage();
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getPixbuf( component, gtkimage );
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}
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/**
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* Overloaded methods that do actual drawing need to enter the gdk threads
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* and also do certain things before and after.
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*/
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public void draw(Shape s)
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{
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super.draw(s);
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Rectangle r = s.getBounds();
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copyPixbuf(component, gtkimage, r.x, r.y, r.width, r.height);
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}
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public void fill(Shape s)
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{
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super.fill(s);
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Rectangle r = s.getBounds();
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copyPixbuf(component, gtkimage, r.x, r.y, r.width, r.height);
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}
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public void drawRenderedImage(RenderedImage image, AffineTransform xform)
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{
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super.drawRenderedImage(image, xform);
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copyPixbuf(component, gtkimage, 0, 0, width, height);
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}
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protected boolean drawImage(Image img, AffineTransform xform,
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Color bgcolor, ImageObserver obs)
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{
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boolean rv = super.drawImage(img, xform, bgcolor, obs);
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copyPixbuf(component, gtkimage, 0, 0, width, height);
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return rv;
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}
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public void drawGlyphVector(GlyphVector gv, float x, float y)
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{
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super.drawGlyphVector(gv, x, y);
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Rectangle r = gv.getPixelBounds(getFontRenderContext(), x , y);
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copyPixbuf(component, gtkimage, r.x, r.y, r.width, r.height);
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}
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}
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