| /* |
| * Copyright (c) 1998, 2000, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.print; |
| |
| import java.awt.AlphaComposite; |
| import java.awt.Color; |
| import java.awt.Composite; |
| import java.awt.Graphics2D; |
| import java.awt.Image; |
| import java.awt.Paint; |
| |
| import java.awt.font.TextLayout; |
| |
| import java.awt.image.RenderedImage; |
| import java.awt.image.renderable.RenderableImage; |
| |
| /** |
| * Maintain information about the type of drawing |
| * performed by a printing application. |
| */ |
| public class PeekMetrics { |
| |
| private boolean mHasNonSolidColors; |
| |
| private boolean mHasCompositing; |
| |
| private boolean mHasText; |
| |
| private boolean mHasImages; |
| |
| /** |
| * Return <code>true</code> if the application |
| * has done any drawing with a Paint that |
| * is not an instance of <code>Color</code> |
| */ |
| public boolean hasNonSolidColors() { |
| return mHasNonSolidColors; |
| } |
| |
| /** |
| * Return true if the application has |
| * done any drawing with an alpha other |
| * than 1.0. |
| */ |
| public boolean hasCompositing() { |
| return mHasCompositing; |
| } |
| |
| /** |
| * Return true if the application has |
| * drawn any text. |
| */ |
| public boolean hasText() { |
| return mHasText; |
| } |
| |
| /** |
| * Return true if the application has |
| * drawn any images. |
| */ |
| public boolean hasImages() { |
| return mHasImages; |
| } |
| |
| /** |
| * The application is performing a fill |
| * so record the needed information. |
| */ |
| public void fill(Graphics2D g) { |
| checkDrawingMode(g); |
| } |
| |
| /** |
| * The application is performing a draw |
| * so record the needed information. |
| */ |
| public void draw(Graphics2D g) { |
| checkDrawingMode(g); |
| } |
| |
| /** |
| * The application is performing a clearRect |
| * so record the needed information. |
| */ |
| public void clear(Graphics2D g) { |
| checkPaint(g.getBackground()); |
| } |
| /** |
| * The application is drawing text |
| * so record the needed information. |
| */ |
| public void drawText(Graphics2D g) { |
| mHasText = true; |
| checkDrawingMode(g); |
| } |
| |
| /** |
| * The application is drawing text |
| * defined by <code>TextLayout</code> |
| * so record the needed information. |
| */ |
| public void drawText(Graphics2D g, TextLayout textLayout) { |
| mHasText = true; |
| checkDrawingMode(g); |
| } |
| |
| /** |
| * The application is drawing the passed |
| * in image. |
| */ |
| public void drawImage(Graphics2D g, Image image) { |
| mHasImages = true; |
| } |
| |
| /** |
| * The application is drawing the passed |
| * in image. |
| */ |
| public void drawImage(Graphics2D g, RenderedImage image) { |
| mHasImages = true; |
| } |
| |
| /** |
| * The application is drawing the passed |
| * in image. |
| */ |
| public void drawImage(Graphics2D g, RenderableImage image) { |
| mHasImages = true; |
| } |
| |
| /** |
| * Record information about the current paint |
| * and composite. |
| */ |
| private void checkDrawingMode(Graphics2D g) { |
| |
| checkPaint(g.getPaint()); |
| checkAlpha(g.getComposite()); |
| |
| } |
| |
| /** |
| * Record information about drawing done |
| * with the supplied <code>Paint</code>. |
| */ |
| private void checkPaint(Paint paint) { |
| |
| if (paint instanceof Color) { |
| if (((Color)paint).getAlpha() < 255) { |
| mHasNonSolidColors = true; |
| } |
| } else { |
| mHasNonSolidColors = true; |
| } |
| } |
| |
| /** |
| * Record information about drawing done |
| * with the supplied <code>Composite</code>. |
| */ |
| private void checkAlpha(Composite composite) { |
| |
| if (composite instanceof AlphaComposite) { |
| AlphaComposite alphaComposite = (AlphaComposite) composite; |
| float alpha = alphaComposite.getAlpha(); |
| int rule = alphaComposite.getRule(); |
| |
| if (alpha != 1.0 |
| || (rule != AlphaComposite.SRC |
| && rule != AlphaComposite.SRC_OVER)) { |
| |
| mHasCompositing = true; |
| } |
| |
| } else { |
| mHasCompositing = true; |
| } |
| |
| } |
| |
| } |