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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/java/awt/font/ImageGraphicAttribute.java | |
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Diffstat (limited to 'libjava/classpath/java/awt/font/ImageGraphicAttribute.java')
-rw-r--r-- | libjava/classpath/java/awt/font/ImageGraphicAttribute.java | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/libjava/classpath/java/awt/font/ImageGraphicAttribute.java b/libjava/classpath/java/awt/font/ImageGraphicAttribute.java new file mode 100644 index 000000000..63fff4101 --- /dev/null +++ b/libjava/classpath/java/awt/font/ImageGraphicAttribute.java @@ -0,0 +1,187 @@ +/* ImageGraphicAttribute.java + Copyright (C) 2003 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package java.awt.font; + +import java.awt.Graphics2D; +import java.awt.Image; +import java.awt.geom.Rectangle2D; + +/** + * This is an implementation of GraphicAttribute which draws images in a + * TextLayout. + * + * @author Lillian Angel + * @author Michael Koch + */ +public final class ImageGraphicAttribute + extends GraphicAttribute +{ + private Image image; + private float originX; + private float originY; + + /** + * Constucts an instance from the specified Image. The origin is at (0, 0). + * + * @param image - image to construct from. + * @param alignment - the alignment + */ + public ImageGraphicAttribute(Image image, int alignment) + { + this(image, alignment, 0, 0); + } + + /** + * Constucts an instance from the specified Image. The origin is at (originX, + * originY). + * + * @param image - image to construct from + * @param alignment - the alignment + * @param originX - x point of origin + * @param originY - y point of origin + */ + public ImageGraphicAttribute(Image image, int alignment, float originX, + float originY) + { + super(alignment); + this.image = image; + this.originX = originX; + this.originY = originY; + } + + /** + * Draws the image at the specified location, relative to the + * origin. + * + * @param g - the graphics to use to render the image + * @param x - the x location + * @param y - the y location + */ + public void draw(Graphics2D g, float x, float y) + { + g.drawImage(image, (int) (x - originX), (int) (y - originY), null); + } + + /** + * Compares this to the specified Object + * + * @param obj - the object to compare + * @return true if the obj and this are equivalent + */ + public boolean equals(Object obj) + { + if (! (obj instanceof ImageGraphicAttribute)) + return false; + + return equals((ImageGraphicAttribute) obj); + } + + /** + * Compares this to the ImageGraphicAttribute given, by + * comparing all fields and values. + * + * @param rhs - the ImageGraphicAttribute to compare + * @return true if the object given is equivalent to this + */ + public boolean equals(ImageGraphicAttribute rhs) + { + return ((this == rhs) || ((this.getAscent() == rhs.getAscent()) + && (this.getAdvance() == rhs.getAdvance()) + && (this.getAlignment() == rhs.getAlignment()) + && (this.getBounds().equals(rhs.getBounds())) + && (this.getDescent() == rhs.getDescent()) + && (this.hashCode() == rhs.hashCode()) + && (this.image.equals(rhs.image)) + && (this.originX == rhs.originX) + && (this.originY == rhs.originY))); + } + + /** + * Returns distance from the origin to the right edge of the image of this. + * + * @return the advance + */ + public float getAdvance() + { + return Math.max(0, image.getWidth(null) - originX); + } + + /** + * Returns the the distance from the top of the image to the origin of this. + * + * @return the ascent. + */ + public float getAscent() + { + return Math.max(0, originY); + } + + /** + * Gets the bounds of the object rendered, relative to the position. + * + * @return the bounds of the object rendered, relative to the position. + */ + public Rectangle2D getBounds() + { + // This is equivalent to what Sun's JDK returns. + // I am not entirely sure why the origin is negative. + return new Rectangle2D.Float(- originX, - originY, image.getWidth(null), + image.getHeight(null)); + } + + /** + * Returns the distance from the origin to the bottom of the image. + * + * @return the descent + */ + public float getDescent() + { + return Math.max(0, image.getHeight(null) - originY); + } + + /** + * Gets the hash code for this image. + * + * @return the hash code + */ + public int hashCode() + { + return image.hashCode(); + } +} |