/*
* Copyright (C) 2000 - 2010 TagServlet Ltd
*
* This file is part of Open BlueDragon (OpenBD) CFML Server Engine.
*
* OpenBD is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* Free Software Foundation,version 3.
*
* OpenBD 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 OpenBD. If not, see http://www.gnu.org/licenses/
*
* Additional permission under GNU GPL version 3 section 7
*
* If you modify this Program, or any covered work, by linking or combining
* it with any of the JARS listed in the README.txt (or a modified version of
* (that library), containing parts covered by the terms of that JAR, the
* licensors of this Program grant you additional permission to convey the
* resulting work.
* README.txt @ http://www.openbluedragon.org/license/README.txt
*
* http://www.openbluedragon.org/
*/
package com.naryx.tagfusion.expression.function.image;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import com.naryx.tagfusion.cfm.engine.cfArgStructData;
import com.naryx.tagfusion.cfm.engine.cfBooleanData;
import com.naryx.tagfusion.cfm.engine.cfData;
import com.naryx.tagfusion.cfm.engine.cfSession;
import com.naryx.tagfusion.cfm.engine.cfmRunTimeException;
public class ImageClearRect extends ImageInfo {
private static final long serialVersionUID = 1L;
public ImageClearRect() {
min = max = 5;
setNamedParams( new String[]{ "name", "x", "y", "width", "height" } );
}
public String[] getParamInfo() {
return new String[] {
"the image object",
"the left of the bounding rectangle",
"the right of the bounding rectangle",
"the width of the rectangle",
"the height of the rectangle"};
}
public java.util.Map getInfo(){
return makeInfo(
"image",
"Clears the bounding rectangle with the current background color",
ReturnType.BOOLEAN );
}
public cfData execute( cfSession _session, cfArgStructData argStruct ) throws cfmRunTimeException{
cfImageData im = getImage( _session, argStruct );
int x = getNamedIntParam(argStruct, "x", 0 );
int y = getNamedIntParam(argStruct, "y", 0 );
int w = getNamedIntParam(argStruct, "width", 0 );
int h = getNamedIntParam(argStruct, "height", 0 );
//Check boundaries
BufferedImage bim = im.getImage();
if ( x < 0 || x > bim.getWidth() )
throwException(_session, "x (" + x + ") is outside the image" );
if ( y < 0 || y > bim.getHeight() )
throwException(_session, "y (" + y + ") is outside the image" );
if ( (x+w) < 0 || (x+w) > bim.getWidth() )
throwException(_session, "w (" + w + ") is outside the image" );
if ( (y+w) < 0 || (y+w) > bim.getHeight() )
throwException(_session, "w (" + w + ") is outside the image" );
Graphics2D g2 = im.createGraphics();
g2.clearRect(x, y, w, h );
im.dispose(g2);
return cfBooleanData.TRUE;
}
}