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Diffstat (limited to 'awt/java/awt/Image.java')
| -rw-r--r-- | awt/java/awt/Image.java | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/awt/java/awt/Image.java b/awt/java/awt/Image.java deleted file mode 100644 index 7ae3ed8..0000000 --- a/awt/java/awt/Image.java +++ /dev/null @@ -1,205 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/** - * @author Igor V. Stolyarov - * @version $Revision$ - */ - -package java.awt; - -import java.awt.image.AreaAveragingScaleFilter; -import java.awt.image.FilteredImageSource; -import java.awt.image.ImageFilter; -import java.awt.image.ImageObserver; -import java.awt.image.ImageProducer; -import java.awt.image.ReplicateScaleFilter; - -import org.apache.harmony.awt.internal.nls.Messages; - -/** - * The Image abstract class represents the graphic images. - * - * @since Android 1.0 - */ -public abstract class Image { - - /** - * The UndefinedProperty object should be returned if property is not - * defined for a particular image. - */ - public static final Object UndefinedProperty = new Object(); // $NON-LOCK-1$ - - /** - * The Constant SCALE_DEFAULT indicates the default image scaling algorithm. - */ - public static final int SCALE_DEFAULT = 1; - - /** - * The Constant SCALE_FAST indicates an image scaling algorithm which places - * a higher priority on scaling speed than on the image's smoothness. - */ - public static final int SCALE_FAST = 2; - - /** - * The Constant SCALE_SMOOTH indicates an image scaling algorithm which - * places a higher priority on image smoothness than on scaling speed. - */ - public static final int SCALE_SMOOTH = 4; - - /** - * The Constant SCALE_REPLICATE indicates the image scaling algorithm in the - * ReplicateScaleFilter class. - */ - public static final int SCALE_REPLICATE = 8; - - /** - * The Constant SCALE_AREA_AVERAGING indicates the area averaging image - * scaling algorithm. - */ - public static final int SCALE_AREA_AVERAGING = 16; - - /** - * The acceleration priority indicates image acceleration. - */ - protected float accelerationPriority = 0.5f; - - /** - * The Constant capabilities. - */ - private static final ImageCapabilities capabilities = new ImageCapabilities(false); - - /** - * Gets the image property with the specified name. The UndefinedProperty - * object should be return if the property is not specified for this image. - * The return value should be null if the property is currently unknown yet - * and the specified ImageObserver is to be notified later. - * - * @param name - * the name of image's property. - * @param observer - * the ImageObserver. - * @return the Object which represents value of the specified property. - */ - public abstract Object getProperty(String name, ImageObserver observer); - - /** - * Gets the ImageProducer object which represents data of this Image. - * - * @return the ImageProducer object which represents data of this Image. - */ - public abstract ImageProducer getSource(); - - /** - * Gets the width of this image. The specified ImageObserver object is - * notified when the width of this image is available. - * - * @param observer - * the ImageObserver object which is is notified when the width - * of this image is available. - * @return the width of image, or -1 if the width of this image is not - * available. - */ - public abstract int getWidth(ImageObserver observer); - - /** - * Gets the height of this image. The specified ImageObserver object is - * notified when the height of this image is available. - * - * @param observer - * the ImageObserver object which is is notified when the height - * of this image is available. - * @return the height of image, or -1 if the height of this image is not - * available. - */ - public abstract int getHeight(ImageObserver observer); - - /** - * Gets the scaled instance of this Image. This method returns an Image - * object constructed from the source of this image with the specified - * width, height, and applied scaling algorithm. - * - * @param width - * the width of scaled Image. - * @param height - * the height of scaled Image. - * @param hints - * the constant which indicates scaling algorithm. - * @return the scaled Image. - */ - public Image getScaledInstance(int width, int height, int hints) { - ImageFilter filter; - if ((hints & (SCALE_SMOOTH | SCALE_AREA_AVERAGING)) != 0) { - filter = new AreaAveragingScaleFilter(width, height); - } else { - filter = new ReplicateScaleFilter(width, height); - } - ImageProducer producer = new FilteredImageSource(getSource(), filter); - return Toolkit.getDefaultToolkit().createImage(producer); - } - - /** - * Gets a Graphics object for rendering this image. This method can be used - * for off-screen images. - * - * @return a Graphics object for rendering to this image. - */ - public abstract Graphics getGraphics(); - - /** - * Flushes resources which are used by this Image object. This method resets - * the image to the reconstructed state from the image's source. - */ - public abstract void flush(); - - /** - * Gets the acceleration priority of this image. - * - * @return the acceleration priority of this image. - */ - public float getAccelerationPriority() { - return accelerationPriority; - } - - /** - * Sets the acceleration priority for this image. - * - * @param priority - * the new acceleration priority (value in the range 0-1). - */ - public void setAccelerationPriority(float priority) { - if (priority < 0 || priority > 1) { - // awt.10A=Priority must be a value between 0 and 1, inclusive - throw new IllegalArgumentException(Messages.getString("awt.10A")); //$NON-NLS-1$ - } - accelerationPriority = priority; - } - - /** - * Gets an ImageCapabilities object of this Image object for the specified - * GraphicsConfiguration. - * - * @param gc - * the specified GraphicsConfiguration object (null value means - * default GraphicsConfiguration). - * @return an ImageCapabilities object of this Image object for the - * specified GraphicsConfiguration. - */ - public ImageCapabilities getCapabilities(GraphicsConfiguration gc) { - // Note: common image is not accelerated. - return capabilities; - } -} |