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/**************************************************************************
/* The base class for image-based commandline operations.
/*
/* Copyright (c) 2009 by Bernhard Bablok (mail@bablokb.de)
/*
/* This program is free software; you can redistribute it and/or modify
/* it under the terms of the GNU Library General Public License as published
/* by the Free Software Foundation; either version 2 of the License or
/* (at your option) any later version.
/*
/* This program 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 Library General Public License for more details.
/*
/* You should have received a copy of the GNU Library General Public License
/* along with this program; see the file COPYING.LIB. If not, write to
/* the Free Software Foundation Inc., 59 Temple Place - Suite 330,
/* Boston, MA 02111-1307 USA
/**************************************************************************/
package org.im4java.core;
import java.util.LinkedList;
import java.util.List;
/**
This class models the command-line of an image-command.
Objects of this class hold the arguments in a list and keep
track of special "dynamic" operations.
@version $Revision: 1.6 $
@author $Author: bablokb, Bruno Mascret (warnings) $
*/
public class Operation {
//////////////////////////////////////////////////////////////////////////////
/**
Placeholder-string for images.
*/
public final static String IMG_PLACEHOLDER = "?img?";
//////////////////////////////////////////////////////////////////////////////
/**
Placeholder-string for dynamic operations.
*/
final static String DOP_PLACEHOLDER = "?dop?";
//////////////////////////////////////////////////////////////////////////////
/**
The list of command-line arguments.
*/
LinkedList<String> iCmdArgs = null;
//////////////////////////////////////////////////////////////////////////////
/**
DynamicOperations for this Operation.
*/
private LinkedList<DynamicOperation> iDynamicOperations = null;
//////////////////////////////////////////////////////////////////////////////
/**
Constructor.
*/
public Operation() {
iCmdArgs = new LinkedList<String>();
iDynamicOperations = new LinkedList<DynamicOperation>();
}
//////////////////////////////////////////////////////////////////////////////
/**
Convert to String. Note that the arguments are not quoted!
*/
public String toString() {
StringBuffer buf = new StringBuffer();
for (String arg:iCmdArgs) {
buf.append(arg).append(" ");
}
return buf.toString();
}
//////////////////////////////////////////////////////////////////////////////
/**
Clone the (java) object. Note that ImageMagick has a -clone operator,
therefore this class has a method clone() (inherited from Core) which
does not clone the java-object, but wraps the IM-clone operator!
*/
public Operation cloneObject() {
Operation op = new Operation();
op.getCmdArgs().addAll(iCmdArgs);
return op;
}
//////////////////////////////////////////////////////////////////////////////
/**
Add raw text to the list of arguments.
*/
public Operation addRawArgs(String... pArgs) {
for (String arg:pArgs) {
iCmdArgs.add(arg);
}
return this;
}
//////////////////////////////////////////////////////////////////////////////
/**
Add raw text to the list of arguments.
*/
public Operation addRawArgs(List<String> pArgs) {
iCmdArgs.addAll(pArgs);
return this;
}
//////////////////////////////////////////////////////////////////////////////
/**
Return the raw arguments.
*/
public LinkedList<String> getCmdArgs() {
return iCmdArgs;
}
//////////////////////////////////////////////////////////////////////////////
/**
Add image(s) to the operation.
*/
public Operation addImage(String... pImages) {
for (String img:pImages) {
if (img != null) {
iCmdArgs.add(img);
}
}
return this;
}
//////////////////////////////////////////////////////////////////////////////
/**
Add an image-placeholder to an Operation.
*/
public Operation addImage() {
return addImage(1);
}
//////////////////////////////////////////////////////////////////////////////
/**
Add multiple image-placeholders to an Operation.
*/
public Operation addImage(int n) {
for (int i=0; i<n; ++i) {
iCmdArgs.add(IMG_PLACEHOLDER);
}
return this;
}
//////////////////////////////////////////////////////////////////////////////
/**
Add an Operation.
*/
public Operation addOperation(Operation pOperation) {
return addRawArgs(pOperation.getCmdArgs());
}
///////////////////////////////////////////////////////////////////////////////
/**
* Add a DynamicOperation to this Operation. We just save the DynamicOperation
* in the internal list and add a placeholder for the operation.
@param pOperation
@return
*/
public Operation addDynamicOperation(DynamicOperation pOperation) {
iDynamicOperations.add(pOperation);
iCmdArgs.add(DOP_PLACEHOLDER);
return this;
}
///////////////////////////////////////////////////////////////////////////////
/**
* Return the list of DynmicOperations.
@return
*/
public LinkedList<DynamicOperation> getDynamicOperations() {
return iDynamicOperations;
}
}
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