/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH (http://www.alkacon.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* For further information about Alkacon Software, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.ade.galleries.client.preview;
import org.opencms.gwt.client.util.CmsClientStringUtil;
/**
* Predefined image format restriction. To be used within the image format tab of the image preview.<p>
*
* @since 8.0.0
*/
public class CmsImageFormatRestriction implements I_CmsFormatRestriction {
/** The height. */
private int m_height;
/** The label. */
private String m_label;
/** The format name. */
private String m_name;
/** The width. */
private int m_width;
/**
* Constructor.<p>
*
* @param name the format name
* @param label the label
* @param config the configuration
*/
public CmsImageFormatRestriction(String name, String label, String config) {
m_name = name;
m_label = label;
parseConfig(config);
}
/**
* Returns if given configuration string is valid.<p>
*
* @param config configuration string
*
* @return <code>true</code> if given configuration string is valid
*/
public static native boolean isValidConfig(String config)/*-{
var regex = /^(\?|\d+)x(\?|\d+)$/;
return regex.test(config);
}-*/;
/**
* @see org.opencms.ade.galleries.client.preview.I_CmsFormatRestriction#adjustCroppingParam(org.opencms.ade.galleries.client.preview.CmsCroppingParamBean)
*/
public void adjustCroppingParam(CmsCroppingParamBean croppingParam) {
if (!matchesCroppingParam(croppingParam)) {
croppingParam.reset();
}
if (!isHeightEditable()) {
croppingParam.setTargetHeight(m_height);
}
if (!isWidthEditable()) {
croppingParam.setTargetWidth(m_width);
}
croppingParam.setFormatName(getName());
}
/**
* @see org.opencms.ade.galleries.client.preview.I_CmsFormatRestriction#getHeight(int, int)
*/
public int getHeight(int orgHeight, int orgWidth) {
if ((m_height == I_CmsFormatRestriction.DIMENSION_NOT_SET)
&& (m_width == I_CmsFormatRestriction.DIMENSION_NOT_SET)) {
return orgHeight;
}
return (m_height == I_CmsFormatRestriction.DIMENSION_NOT_SET) ? ((orgHeight * m_width) / orgWidth) : m_height;
}
/**
* @see org.opencms.ade.galleries.client.preview.I_CmsFormatRestriction#getLabel()
*/
public String getLabel() {
return m_label;
}
/**
* @see org.opencms.ade.galleries.client.preview.I_CmsFormatRestriction#getName()
*/
public String getName() {
return m_name;
}
/**
* @see org.opencms.ade.galleries.client.preview.I_CmsFormatRestriction#getWidth(int, int)
*/
public int getWidth(int orgHeight, int orgWidth) {
if ((m_height == I_CmsFormatRestriction.DIMENSION_NOT_SET)
&& (m_width == I_CmsFormatRestriction.DIMENSION_NOT_SET)) {
return orgWidth;
}
return (m_width == I_CmsFormatRestriction.DIMENSION_NOT_SET) ? ((orgWidth * m_height) / orgHeight) : m_width;
}
/**
* @see org.opencms.ade.galleries.client.preview.I_CmsFormatRestriction#isCroppingEnabled()
*/
public boolean isCroppingEnabled() {
return true;
}
/**
* @see org.opencms.ade.galleries.client.preview.I_CmsFormatRestriction#isFixedRatio()
*/
public boolean isFixedRatio() {
return !isHeightEditable() && !isWidthEditable();
}
/**
* @see org.opencms.ade.galleries.client.preview.I_CmsFormatRestriction#isHeightEditable()
*/
public boolean isHeightEditable() {
return m_height == I_CmsFormatRestriction.DIMENSION_NOT_SET;
}
/**
* @see org.opencms.ade.galleries.client.preview.I_CmsFormatRestriction#isWidthEditable()
*/
public boolean isWidthEditable() {
return m_width == I_CmsFormatRestriction.DIMENSION_NOT_SET;
}
/**
* @see org.opencms.ade.galleries.client.preview.I_CmsFormatRestriction#matchesCroppingParam(org.opencms.ade.galleries.client.preview.CmsCroppingParamBean)
*/
public boolean matchesCroppingParam(CmsCroppingParamBean croppingParam) {
if (!isHeightEditable() && (m_height != croppingParam.getTargetHeight())) {
return false;
}
if (!isWidthEditable() && (m_width != croppingParam.getTargetWidth())) {
return false;
}
return true;
}
/**
* Parses the the given configuration string.<p>
*
* @param config the configuration
*/
private void parseConfig(String config) {
if (isValidConfig(config)) {
String[] conf = config.split("x");
if (conf[0].trim().equals("?")) {
m_width = I_CmsFormatRestriction.DIMENSION_NOT_SET;
} else {
m_width = CmsClientStringUtil.parseInt(conf[0]);
m_width = (m_width == 0) ? I_CmsFormatRestriction.DIMENSION_NOT_SET : m_width;
}
if (conf[1].trim().equals("?")) {
m_height = I_CmsFormatRestriction.DIMENSION_NOT_SET;
} else {
m_height = CmsClientStringUtil.parseInt(conf[1]);
m_height = (m_height == 0) ? I_CmsFormatRestriction.DIMENSION_NOT_SET : m_height;
}
}
}
}