hg/bck2brwsr: javaquery/canvas/src/main/java/net/java/html/canvas/ImageData.java@493cae4fd458

     1 /**

     2  * Back 2 Browser Bytecode Translator Copyright (C) 2012 Jaroslav Tulach

     3  * <jaroslav.tulach@apidesign.org>

     4  *

     5  * This program is free software: you can redistribute it and/or modify it under

     6  * the terms of the GNU General Public License as published by the Free Software

     7  * Foundation, version 2 of the License.

     8  *

     9  * This program is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

    11  * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more

    12  * details.

    13  *

    14  * You should have received a copy of the GNU General Public License along with

    15  * this program. Look for COPYING file in the top folder. If not, see

    16  * http://opensource.org/licenses/GPL-2.0.

    17  */

    18 package net.java.html.canvas;

    20 /**

    21  * ImageData is an updateable 2-Dimensional Map of Color values. Created (

    22  * createPixelMap / getSnapShot ) by GraphicsContext. you can modify the

    23  * individual pixels and render it using paintPixelMap on GraphicsContext

    24  *

    25  * @author antonepple

    26  */

    27 public interface ImageData {

    29     /**

    30      * get the height.

    31      *

    32      * @return the height

    33      */

    34     public double getHeight();

    36     /**

    37      * get the width

    38      *

    39      * @return the width

    40      */

    41     public double getWidth();

    43     /**

    44      * get the red value at a specified coordinate

    45      *

    46      * @param x

    47      * @param y

    48      * @return the red value as an int (0 -255)

    49      */

    50     public int getR(int x, int y);

    52     /**

    53      * get the green value at a specified coordinate

    54      *

    55      * @param x

    56      * @param y

    57      * @return the green value as an int (0 -255)

    58      */

    59     public int getG(int x, int y);

    61     /**

    62      * get the blue value at a specified coordinate

    63      *

    64      * @param x

    65      * @param y

    66      * @return the blue value as an int (0 -255)

    67      */

    68     public int getB(int x, int y);

    70     /**

    71      * get the alpha (transparency) value at a specified coordinate

    72      *

    73      * @param x

    74      * @param y

    75      * @return the alpha value as an int (0 - 255)

    76      */

    77     public int getA(int x, int y);

    79      /**

    80      * set the red value at a specified coordinate

    81      *

    82      * @param x

    83      * @param y

    84      * @param value the red value as an int (0 - 255)

    85      */

    86     public void setR(int x, int y, int value);

    88      /**

    89      * set the green value at a specified coordinate

    90      *

    91      * @param x

    92      * @param y

    93      * @param value the green value as an int (0 - 255)

    94      */

    95     public void setG(int x, int y, int value);

    97      /**

    98      * set the blue value at a specified coordinate

    99      *

   100      * @param x

   101      * @param y

   102      * @param value the blue value as an int (0 - 255)

   103      */

   104     public void setB(int x, int y, int value);

   106     /**

   107      * set the alpha (transparency) value at a specified coordinate

   108      *

   109      * @param x

   110      * @param y

   111      * @param value the alpha value as an int (0 - 255)

   112      */

   113     public void setA(int x, int y, int value);

   114 }

author	Anton Epple <toni.epple@eppleton.de>
	Wed, 12 Feb 2014 08:43:07 +0100
branch	canvas
changeset 1445	493cae4fd458
parent 1440	c943709738df
permissions	-rw-r--r--