ui/viewers/Section.java

   1 package org.argeo.cms.ui.viewers;
   2
   3 import java.util.Collections;
   4 import java.util.LinkedHashMap;
   5 import java.util.Map;
   6
   7 import javax.jcr.Node;
   8 import javax.jcr.RepositoryException;
   9
  10 import org.argeo.cms.ui.util.CmsUiUtils;
  11 import org.argeo.cms.ui.widgets.JcrComposite;
  12 import org.eclipse.swt.SWT;
  13 import org.eclipse.swt.widgets.Composite;
  14 import org.eclipse.swt.widgets.Control;
  15
  16 /** A structured UI related to a JCR context. */
  17 public class Section extends JcrComposite {
  18         private static final long serialVersionUID = -5933796173755739207L;
  19
  20         private final Section parentSection;
  21         private Composite sectionHeader;
  22         private final Integer relativeDepth;
  23
  24         public Section(Composite parent, int style, Node node) {
  25                 this(parent, findSection(parent), style, node);
  26         }
  27
  28         public Section(Section section, int style, Node node) {
  29                 this(section, section, style, node);
  30         }
  31
  32         protected Section(Composite parent, Section parentSection, int style, Node node) {
  33                 super(parent, style, node);
  34                 try {
  35                         this.parentSection = parentSection;
  36                         if (parentSection != null) {
  37                                 relativeDepth = getNode().getDepth() - parentSection.getNode().getDepth();
  38                         } else {
  39                                 relativeDepth = 0;
  40                         }
  41                         setLayout(CmsUiUtils.noSpaceGridLayout());
  42                 } catch (RepositoryException e) {
  43                         throw new IllegalStateException("Cannot create section from " + node, e);
  44                 }
  45         }
  46
  47         public Map<String, Section> getSubSections() throws RepositoryException {
  48                 LinkedHashMap<String, Section> result = new LinkedHashMap<String, Section>();
  49                 for (Control child : getChildren()) {
  50                         if (child instanceof Composite) {
  51                                 collectDirectSubSections((Composite) child, result);
  52                         }
  53                 }
  54                 return Collections.unmodifiableMap(result);
  55         }
  56
  57         private void collectDirectSubSections(Composite composite, LinkedHashMap<String, Section> subSections)
  58                         throws RepositoryException {
  59                 if (composite == sectionHeader || composite instanceof EditablePart)
  60                         return;
  61                 if (composite instanceof Section) {
  62                         Section section = (Section) composite;
  63                         subSections.put(section.getNodeId(), section);
  64                         return;
  65                 }
  66
  67                 for (Control child : composite.getChildren())
  68                         if (child instanceof Composite)
  69                                 collectDirectSubSections((Composite) child, subSections);
  70         }
  71
  72         public Composite createHeader() {
  73                 return createHeader(this);
  74         }
  75
  76         public Composite createHeader(Composite parent) {
  77                 if (sectionHeader != null)
  78                         sectionHeader.dispose();
  79
  80                 sectionHeader = new Composite(parent, SWT.NONE);
  81                 sectionHeader.setLayoutData(CmsUiUtils.fillWidth());
  82                 sectionHeader.setLayout(CmsUiUtils.noSpaceGridLayout());
  83                 // sectionHeader.moveAbove(null);
  84                 // layout();
  85                 return sectionHeader;
  86         }
  87
  88         public Composite getHeader() {
  89                 if (sectionHeader != null && sectionHeader.isDisposed())
  90                         sectionHeader = null;
  91                 return sectionHeader;
  92         }
  93
  94         // SECTION PARTS
  95         public SectionPart getSectionPart(String partId) {
  96                 for (Control child : getChildren()) {
  97                         if (child instanceof SectionPart) {
  98                                 SectionPart sectionPart = (SectionPart) child;
  99                                 if (sectionPart.getPartId().equals(partId))
 100                                         return sectionPart;
 101                         }
 102                 }
 103                 return null;
 104         }
 105
 106         public SectionPart nextSectionPart(SectionPart sectionPart) {
 107                 Control[] children = getChildren();
 108                 for (int i = 0; i < children.length; i++) {
 109                         if (sectionPart == children[i])
 110                                 if (i + 1 < children.length) {
 111                                         Composite next = (Composite) children[i + 1];
 112                                         return (SectionPart) next;
 113                                 } else {
 114                                         // next section
 115                                 }
 116                 }
 117                 return null;
 118         }
 119
 120         public SectionPart previousSectionPart(SectionPart sectionPart) {
 121                 Control[] children = getChildren();
 122                 for (int i = 0; i < children.length; i++) {
 123                         if (sectionPart == children[i])
 124                                 if (i != 0) {
 125                                         Composite previous = (Composite) children[i - 1];
 126                                         return (SectionPart) previous;
 127                                 } else {
 128                                         // previous section
 129                                 }
 130                 }
 131                 return null;
 132         }
 133
 134         @Override
 135         public String toString() {
 136                 if (parentSection == null)
 137                         return "Main section " + getNode();
 138                 return "Section " + getNode();
 139         }
 140
 141         public Section getParentSection() {
 142                 return parentSection;
 143         }
 144
 145         public Integer getRelativeDepth() {
 146                 return relativeDepth;
 147         }
 148
 149         /** Recursively finds the related section in the parents (can be itself) */
 150         public static Section findSection(Control control) {
 151                 if (control == null)
 152                         return null;
 153                 if (control instanceof Section)
 154                         return (Section) control;
 155                 else
 156                         return findSection(control.getParent());
 157         }
 158 }