Java tutorial
///////////////////////////////////////////////////////////////////////////// // // Project ProjectForge Community Edition // www.projectforge.org // // Copyright (C) 2001-2013 Kai Reinhard (k.reinhard@micromata.de) // // ProjectForge is dual-licensed. // // This community edition 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; version 3 of the License. // // This community edition 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 this program; if not, see http://www.gnu.org/licenses/. // ///////////////////////////////////////////////////////////////////////////// package org.projectforge.web.imagecropper; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; import org.apache.commons.lang.StringUtils; import org.apache.wicket.markup.head.CssReferenceHeaderItem; import org.apache.wicket.markup.head.IHeaderResponse; import org.apache.wicket.markup.head.JavaScriptReferenceHeaderItem; import org.apache.wicket.markup.html.basic.Label; import org.apache.wicket.protocol.http.servlet.ServletWebRequest; import org.apache.wicket.request.mapper.parameter.PageParameters; import org.projectforge.common.StringHelper; import org.projectforge.core.ConfigXml; import org.projectforge.user.PFUserContext; import org.projectforge.web.wicket.AbstractSecuredPage; import org.projectforge.web.wicket.WicketUtils; public class ImageCropperPage extends AbstractSecuredPage { private static final long serialVersionUID = -3868048775620052627L; private static final org.apache.log4j.Logger log = org.apache.log4j.Logger.getLogger(ImageCropperPage.class); public static final String PARAM_ENABLE_WHITEBOARD_FILTER = "enableWhiteboardFilter"; public static final String PARAM_SHOW_UPLOAD_BUTTON = "showUploadButton"; public static final String PARAM_LANGUAGE = "language"; public static final String PARAM_RATIOLIST = "ratioList"; public static final String PARAM_DEFAULT_RATIO = "defaultRatio"; public static final String PARAM_FILE_FORMAT = "fileFormat"; private String ratioList = "1:1,1:2,2:1,1:3,2:3,3:1,3:2,1:4,3:4,4:1,4:3,1:5,2:5,3:5,4:5,5:1,5:2,5:3,5:4"; private String defaultRatio = "2:3"; private boolean showUploadButton; private boolean enableWhiteBoardFilter; private String defaultLanguage; private String fileFormat = ""; /** * See list of constants PARAM_* for supported parameters. * @param parameters */ public ImageCropperPage(final PageParameters parameters) { super(parameters); if (WicketUtils.contains(parameters, PARAM_SHOW_UPLOAD_BUTTON) == true) { setEnableWhiteBoardFilter(WicketUtils.getAsBoolean(parameters, PARAM_SHOW_UPLOAD_BUTTON)); } if (WicketUtils.contains(parameters, PARAM_ENABLE_WHITEBOARD_FILTER) == true) { setEnableWhiteBoardFilter(WicketUtils.getAsBoolean(parameters, PARAM_ENABLE_WHITEBOARD_FILTER)); } if (WicketUtils.contains(parameters, PARAM_LANGUAGE) == true) { setDefaultLanguage(WicketUtils.getAsString(parameters, PARAM_LANGUAGE)); } if (WicketUtils.contains(parameters, PARAM_RATIOLIST) == true) { setRatioList(WicketUtils.getAsString(parameters, PARAM_RATIOLIST)); } if (WicketUtils.contains(parameters, PARAM_DEFAULT_RATIO) == true) { setDefaultRatio(WicketUtils.getAsString(parameters, PARAM_DEFAULT_RATIO)); } if (WicketUtils.contains(parameters, PARAM_FILE_FORMAT) == true) { setFileFormat(WicketUtils.getAsString(parameters, PARAM_FILE_FORMAT)); } final ServletWebRequest req = (ServletWebRequest) this.getRequest(); final HttpServletRequest hreq = req.getContainerRequest(); String domain; if (StringUtils.isNotBlank(ConfigXml.getInstance().getDomain()) == true) { domain = ConfigXml.getInstance().getDomain(); } else { domain = hreq.getScheme() + "://" + hreq.getLocalName() + ":" + hreq.getLocalPort(); } final String url = domain + hreq.getContextPath() + "/secure/"; final StringBuffer buf = new StringBuffer(); appendVar(buf, "serverURL", url); // TODO: Wird wohl nicht mehr gebraucht. appendVar(buf, "uploadImageFileTemporaryServlet", url + "UploadImageFileTemporary"); appendVar(buf, "uploadImageFileTemporaryServletParams", "filedirectory=tempimages;filename=image"); appendVar(buf, "downloadImageFileServlet", url + "DownloadImageFile"); appendVar(buf, "downloadImageFileServletParams", "filedirectory=tempimages;filename=image"); appendVar(buf, "uploadImageFileServlet", url + "UploadImageFile"); appendVar(buf, "uploadImageFileServletParams", "filedirectory=images;filename=image;croppedname=cropped"); appendVar(buf, "upAndDownloadImageFileAsByteArrayServlet", url + "UpAndDownloadImageFileAsByteArray"); appendVar(buf, "upAndDownloadImageFileAsByteArrayServletParams", "filename=image;croppedname=cropped"); final HttpSession httpSession = hreq.getSession(); appendVar(buf, "sessionid", httpSession.getId()); appendVar(buf, "ratioList", ratioList); appendVar(buf, "defaultRatio", defaultRatio); appendVar(buf, "isUploadBtn", showUploadButton); appendVar(buf, "whiteBoardFilter", enableWhiteBoardFilter); appendVar(buf, "language", getDefaultLanguage()); appendVar(buf, "fileFormat", fileFormat); appendVar(buf, "flashFile", WicketUtils.getAbsoluteUrl("/imagecropper/MicromataImageCropper")); add(new Label("javaScriptVars", buf.toString()).setEscapeModelStrings(false)); } @Override public void renderHead(final IHeaderResponse response) { super.renderHead(response); response.render(CssReferenceHeaderItem.forUrl("imagecropper/history/history.css")); response.render(JavaScriptReferenceHeaderItem.forUrl("imagecropper/history/history.js")); response.render(JavaScriptReferenceHeaderItem.forUrl("imagecropper/AC_OETags.js")); } /** * Valid Ratio Examples: "1:4, 4:1, 1:2, 2:1, 1:3, 3:1, 2:3, 3:2" etc. */ public String getRatioList() { return ratioList; } public void setRatioList(final String ratioList) { this.ratioList = ratioList; } /** * Wird Variable leer gelassen, kann die Ratio frei gewhlt werden Wird Variable mit gltigem Wert befllt, wird die Ratio auf den * Konfigurierten Wert gesetzt */ public String getDefaultRatio() { return defaultRatio; } public void setDefaultRatio(final String defaultRatio) { this.defaultRatio = defaultRatio; } /** * If true then the upload button in ImageCropper flash app will be shown. */ public boolean isShowUploadButton() { return showUploadButton; } public void setShowUploadButton(final boolean showUploadButton) { this.showUploadButton = showUploadButton; } /** * Auf true gesetzt kann WhiteBoardFilter verwendet werden. */ public boolean isEnableWhiteBoardFilter() { return enableWhiteBoardFilter; } public void setEnableWhiteBoardFilter(final boolean enableWhiteBoardFilter) { this.enableWhiteBoardFilter = enableWhiteBoardFilter; } /** * Valid FileFormat: jpg, jpeg, gif, png. Wird Variable leer gelassen, knnen alle Formate ausgewhlt werden. Wird Variable mit gltigem * Wert befllt, knnen Images nur im jeweligen Dateiformat erzeugt werden. */ public String getFileFormat() { return fileFormat; } public void setFileFormat(final String fileFormat) { if (StringHelper.isIn(fileFormat, "png", "gif", "jpg", "jpeg") == true) { this.fileFormat = fileFormat; } else { log.error("Unsupported file format: " + fileFormat); } } /** * Valid language: DE, EN Wird Variable leer gelassen, wird die language des Users verwendet. */ public String getDefaultLanguage() { if (defaultLanguage != null) { return defaultLanguage; } return PFUserContext.getLocale().getCountry(); } public void setDefaultLanguage(final String defaultLanguage) { if (StringHelper.isIn(defaultLanguage, "EN", "DE") == true) { this.defaultLanguage = defaultLanguage; } else { log.error("Unsupported language: " + defaultLanguage); } } /** * @return false * @see org.projectforge.web.wicket.AbstractUnsecureBasePage#isBookmarkLinkIconVisible() */ // @Override // protected boolean isBookmarkLinkIconVisible() // { // return false; // } private ImageCropperPage appendVar(final StringBuffer buf, final String variable, final Object value) { buf.append("var ").append(variable).append(" = "); if (value == null) { buf.append("null"); } else if (value instanceof String) { buf.append("\"").append(value).append("\""); } else { buf.append(value); } buf.append(";\n"); return this; } @Override protected String getTitle() { return "ImageCropper"; } }