eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/ui/mvc/element/TextWithLabelElementController.java

   1 /**
   2 * Copyright (C) 2014 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   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.
   8 */
   9 package eu.etaxonomy.taxeditor.ui.mvc.element;
  10
  11 import org.eclipse.swt.SWT;
  12 import org.eclipse.swt.events.KeyAdapter;
  13 import org.eclipse.swt.events.KeyEvent;
  14 import org.eclipse.swt.events.ModifyEvent;
  15 import org.eclipse.swt.events.ModifyListener;
  16 import org.eclipse.swt.graphics.Color;
  17 import org.eclipse.swt.widgets.Control;
  18 import org.eclipse.swt.widgets.Text;
  19
  20 import eu.etaxonomy.taxeditor.preference.Resources;
  21 import eu.etaxonomy.taxeditor.store.StoreUtil;
  22 import eu.etaxonomy.taxeditor.ui.element.AbstractRelevanceFormElement;
  23 import eu.etaxonomy.taxeditor.ui.element.CdmFormFactory;
  24 import eu.etaxonomy.taxeditor.ui.element.CdmPropertyChangeEvent;
  25 import eu.etaxonomy.taxeditor.ui.element.ICdmFormElement;
  26 import eu.etaxonomy.taxeditor.ui.element.IEnableableFormElement;
  27 import eu.etaxonomy.taxeditor.ui.element.ISelectable;
  28 import eu.etaxonomy.taxeditor.ui.mvc.interfaces.CdmCompositeController;
  29
  30 /**
  31  * TextWithLabelElement class.
  32  *
  33  * @author n.hoffmann
  34  */
  35 public class TextWithLabelElementController
  36         extends AbstractRelevanceFormElement
  37         implements ModifyListener, IEnableableFormElement, ISelectable, CdmCompositeController {
  38
  39     protected Text text;
  40 //    private Label label;
  41
  42     /** Constant <code>MAX_HEIGHT=0</code> */
  43     public static final int MAX_HEIGHT = 0;
  44     /** Constant <code>SINGLE=-1</code> */
  45     public static final int SINGLE = -1;
  46
  47     /**
  48      * Constructor for TextWithLabelElement.
  49      */
  50     public TextWithLabelElementController(TextWithLabelElementMVC textWithLabelElement, CdmFormFactory formFactory, ICdmFormElement parentElement,
  51             String initialText, Integer textHeight, int style) {
  52         super(formFactory, parentElement);
  53
  54         int scrollStyle = textHeight == null ? SWT.NULL : (SWT.V_SCROLL | SWT.MULTI);
  55
  56         int combinedStyle = style | SWT.BORDER | scrollStyle;
  57
  58         // SWT.PASSWORD does not work when SWT.WRAP is set.
  59         if (style != SWT.PASSWORD) {
  60             combinedStyle = combinedStyle | SWT.WRAP;
  61         }
  62
  63         text = textWithLabelElement.getText();
  64
  65         addControl(text);
  66
  67         if (textHeight == null) {
  68             text.addKeyListener(new KeyAdapter() {
  69                 @Override
  70                 public void keyPressed(KeyEvent e) {
  71                     if (e.character == SWT.CR) {
  72                         // Don't accept carriage returns as input when in single
  73                         // line mode
  74                         e.doit = false;
  75                     } else if (e.character == SWT.TAB) {
  76                         // traverse is not working for wrapped text widgets so
  77                         // we reintroduce it here
  78                         e.doit = false;
  79                         TextWithLabelElementController.this.text.traverse(SWT.TRAVERSE_TAB_NEXT);
  80                     }
  81                 }
  82             });
  83         }
  84
  85         text.addModifyListener(this);
  86     }
  87
  88     /**
  89      * Get the text of this composites text composite
  90      */
  91     public String getText() {
  92         return text.getText();
  93     }
  94
  95     /**
  96      * Set the text of this composites text composite
  97      */
  98     public void setText(String string) {
  99         StoreUtil.setTextWithoutModifyListeners(text, string);
 100     }
 101
 102     @Override
 103     public void modifyText(ModifyEvent e) {
 104         firePropertyChangeEvent(new CdmPropertyChangeEvent(this, e));
 105     }
 106
 107     @Override
 108     public void setEnabled(boolean enabled) {
 109         text.setEnabled(enabled);
 110         String symbolicName = enabled ? Resources.COLOR_FONT_DEFAULT : Resources.COLOR_TEXT_DISABLED;
 111         text.setForeground(getColor(symbolicName));
 112     }
 113
 114     @Override
 115     public boolean isEnabled() {
 116         return text.isEnabled();
 117     }
 118
 119     @Override
 120     public void updateCacheRelevance() {
 121         Color color = cacheRelevance().getColor();
 122         text.setBackground(color);
 123     }
 124
 125     @Override
 126     public void setBackground(Color color) {
 127 //        if (label != null) {
 128 //            label.setBackground(color);
 129 //        }
 130     }
 131
 132     @Override
 133     public void setSelected(boolean selected) {
 134         setBackground(selected ? SELECTED : getPersistentBackground());
 135     }
 136
 137     @Override
 138     public void setFocus() {
 139         text.setFocus();
 140     }
 141
 142     /**
 143      * getMainControl
 144      */
 145     public Control getMainControl() {
 146         return text;
 147     }
 148
 149     /**
 150      * setTextLimit
 151      */
 152     public void setTextLimit(int limit) {
 153         text.setTextLimit(limit);
 154     }
 155 }