2 * Copyright (C) 2014 EDIT
3 * European Distributed Institute of Taxonomy
4 * http://www.e-taxonomy.eu
6 * The contents of this file are subject to the Mozilla Public License Version 1.1
7 * See LICENSE.TXT at the top of this package for the full license terms.
9 package eu
.etaxonomy
.taxeditor
.ui
.section
.media
;
12 import java
.util
.List
;
15 import org
.apache
.sanselan
.ImageReadException
;
16 import org
.eclipse
.swt
.SWT
;
17 import org
.eclipse
.swt
.widgets
.Label
;
19 import eu
.etaxonomy
.cdm
.common
.UriUtils
;
20 import eu
.etaxonomy
.cdm
.common
.media
.ImageInfo
;
21 import eu
.etaxonomy
.cdm
.model
.media
.ImageFile
;
22 import eu
.etaxonomy
.cdm
.model
.media
.Media
;
23 import eu
.etaxonomy
.cdm
.model
.media
.MediaRepresentation
;
24 import eu
.etaxonomy
.cdm
.model
.media
.MediaRepresentationPart
;
25 import eu
.etaxonomy
.cdm
.model
.media
.MediaUtils
;
26 import eu
.etaxonomy
.taxeditor
.model
.MessagingUtils
;
27 import eu
.etaxonomy
.taxeditor
.preference
.IPreferenceKeys
;
28 import eu
.etaxonomy
.taxeditor
.preference
.PreferencesUtil
;
29 import eu
.etaxonomy
.taxeditor
.ui
.element
.CdmFormFactory
;
30 import eu
.etaxonomy
.taxeditor
.ui
.element
.ICdmFormElement
;
31 import eu
.etaxonomy
.taxeditor
.ui
.element
.ImageElement
;
32 import eu
.etaxonomy
.taxeditor
.ui
.element
.LayoutConstants
;
33 import eu
.etaxonomy
.taxeditor
.ui
.element
.UriWithLabelElement
;
34 import eu
.etaxonomy
.taxeditor
.ui
.section
.AbstractCdmDetailElement
;
41 public class MediaDetailElement
extends AbstractCdmDetailElement
<Media
>{
43 private UriWithLabelElement textUri
;
44 private MediaRepresentationSection section_mediaRepresentation
;
46 private boolean isAdvancedMediaView
;
47 private MediaRepresentationPart singleMediaRepresentationPart
;
48 private ICdmFormElement parentFormElement
;
52 * Used to store the URI even if it is invalid and thus cannot be stored in CDM
54 private String uriBuffer
;
55 private ImageElement element_image
;
56 private Label lblNoImage
;
58 public MediaDetailElement(CdmFormFactory formFactory
, ICdmFormElement formElement
) {
59 super(formFactory
, formElement
);
63 protected void createControls(ICdmFormElement formElement
, Media entity
, int style
) {
64 this.parentFormElement
= formElement
;
69 public void setEntity(Media entity
) {
70 super.setEntity(entity
);
71 if(singleMediaRepresentationPart
==null){
72 singleMediaRepresentationPart
= MediaUtils
.initFirstMediaRepresentationPart(entity
, true);
74 initIsAdvancedMediaView();
79 public void handleEvent(Object eventSource
){
80 if(eventSource
==textUri
){
81 textUri
.setBackground(getPersistentBackground());
82 URI uri
= textUri
.parseText();
83 singleMediaRepresentationPart
.setUri(uri
);
85 uriBuffer
=textUri
.getText();
88 createImageElement(uri
);
93 private void createImageElement(URI uri
) {
99 //first check if uri refers to an actual (non-image) file
100 UriUtils
.getInputStream(uri
);// will fail with a FileNotFoundException if not
101 imageInfo
= ImageInfo
.NewInstance(uri
, 10000);//will fail when it is no image file
102 singleMediaRepresentationPart
.setSize((int) imageInfo
.getLength());
103 if(singleMediaRepresentationPart
instanceof ImageFile
){
104 ((ImageFile
) singleMediaRepresentationPart
).setHeight(imageInfo
.getHeight());
105 ((ImageFile
) singleMediaRepresentationPart
).setWidth(imageInfo
.getWidth());
107 singleMediaRepresentationPart
.getMediaRepresentation().setMimeType(imageInfo
.getMimeType());
108 singleMediaRepresentationPart
.getMediaRepresentation().setSuffix(imageInfo
.getSuffix());
109 element_image
= formFactory
.createImageElement(parentFormElement
, uri
, style
);
110 element_image
.initImageUri(uri
);
111 element_image
.loadImage();
113 } catch (Exception e
){
114 if(e
.getCause()!=null && e
.getCause().getClass().equals(ImageReadException
.class)){
116 handleException(uri
, "No preview available for this file type");
120 handleException(uri
, "No file found");
125 private void disposeErrorLabel() {
126 if(lblNoImage
!=null){
127 lblNoImage
.dispose();
132 public void toggleAdvancedMediaView() {
133 if (getEntity().getRepresentations() != null
134 && (getEntity().getRepresentations().size() > 1 ||
135 (getEntity().getRepresentations().size() == 1
136 && getEntity().getRepresentations().iterator().next().getParts().size() > 1))) {
137 MessagingUtils
.informationDialog("Toggling not possible",
138 "Media has consists of multiple representations or representatio parts");
139 // toggling is only possible if there are no more than one
140 // MediaRepresentation resp. MediaRepresentationParts
143 isAdvancedMediaView
= !isAdvancedMediaView
;
145 reflowParentScrolledForm(true);
148 private void showAdvancedView() {
149 if(isAdvancedMediaView
){
151 removeElementsAndControls(textUri
);
153 if(element_image
!=null){
154 element_image
.dispose();
155 element_image
= null;
157 section_mediaRepresentation
= formFactory
.createMediaRepresentationSection(getConversationHolder(), parentFormElement
, style
);
158 section_mediaRepresentation
.setLayoutData(LayoutConstants
.FILL_HORIZONTALLY(2, 1));
159 section_mediaRepresentation
.setEntity(getEntity());
160 //set buffered uri as text if uri had parsing problems in simple view
162 section_mediaRepresentation
.getLayoutComposite().getChildren();
166 if(section_mediaRepresentation
!=null){
167 removeElementsAndControls(section_mediaRepresentation
);
169 textUri
= formFactory
.createUriWithLabelElement(parentFormElement
, "Media URI", null, style
);
170 URI uri
= singleMediaRepresentationPart
.getUri();
171 textUri
.setParsedText(uri
);
172 //set buffered uri as text if uri had parsing problems in advanced view
173 if(uri
==null && uriBuffer
!=null){
174 textUri
.setText(uriBuffer
);
177 textUri
.getLayoutComposite().layout();
179 createImageElement(singleMediaRepresentationPart
.getUri());
183 private void initIsAdvancedMediaView(){
184 if(PreferencesUtil
.getPreferenceStore().getBoolean(IPreferenceKeys
.SHOW_ADVANCED_MEDIA_SECTION
)){
185 isAdvancedMediaView
= true;
188 Set
<MediaRepresentation
> representations
= getEntity().getRepresentations();
189 if(representations
.size()>1){
190 isAdvancedMediaView
= true;
193 if(representations
.size()==1){
194 List
<MediaRepresentationPart
> parts
= representations
.iterator().next().getParts();
196 isAdvancedMediaView
= true;
200 isAdvancedMediaView
= false;
203 private void handleException(URI uri
, String labelText
) {
204 if(element_image
!=null){
205 element_image
.unloadImage();
206 element_image
.loadImage();
207 element_image
.dispose();
209 if(lblNoImage
==null){
210 lblNoImage
= formFactory
.createLabel(getLayoutComposite(), labelText
);
211 lblNoImage
.setLayoutData(LayoutConstants
.FILL_HORIZONTALLY(2, 1));
212 lblNoImage
.setAlignment(SWT
.CENTER
);
216 public boolean isAdvancedMediaView() {
217 return isAdvancedMediaView
;
220 public void setUriBuffer(String uriBuffer
) {
221 this.uriBuffer
= uriBuffer
;
224 public String
getUriBuffer() {