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1: /* CairoSurfaceGraphics.java 2: Copyright (C) 2006 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: 39: package gnu.java.awt.peer.gtk; 40: 41: import java.awt.Graphics; 42: import java.awt.GraphicsEnvironment; 43: import java.awt.GraphicsConfiguration; 44: import java.awt.geom.Rectangle2D; 45: 46: /** 47: * Implementation of Graphics2D on a Cairo surface. 48: */ 49: public class CairoSurfaceGraphics extends CairoGraphics2D 50: { 51: protected CairoSurface surface; 52: private long cairo_t; 53: 54: /** 55: * Create a graphics context from a cairo surface 56: */ 57: public CairoSurfaceGraphics(CairoSurface surface) 58: { 59: this.surface = surface; 60: cairo_t = surface.newCairoContext(); 61: setup( cairo_t ); 62: } 63: 64: /** 65: * Creates another context from a surface. 66: * Used by create(). 67: */ 68: private CairoSurfaceGraphics(CairoSurfaceGraphics copyFrom) 69: { 70: surface = copyFrom.surface; 71: cairo_t = surface.newCairoContext(); 72: copy( copyFrom, cairo_t ); 73: } 74: 75: public Graphics create() 76: { 77: return new CairoSurfaceGraphics(this); 78: } 79: 80: public GraphicsConfiguration getDeviceConfiguration() 81: { 82: return GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration(); 83: } 84: 85: protected Rectangle2D getRealBounds() 86: { 87: return new Rectangle2D.Double(0.0, 0.0, surface.width, surface.height); 88: } 89: 90: public void copyAreaImpl(int x, int y, int width, int height, int dx, int dy) 91: { 92: surface.copyAreaNative(x, y, width, height, dx, dy, surface.width); 93: } 94: }