swt/org.argeo.cms.swt/src/org/argeo/cms/swt/widgets/EditableText.java

   1 package org.argeo.cms.swt.widgets;
   2
   3 import org.argeo.cms.swt.CmsSwtUtils;
   4 import org.eclipse.swt.SWT;
   5 import org.eclipse.swt.graphics.Color;
   6 import org.eclipse.swt.layout.GridData;
   7 import org.eclipse.swt.widgets.Composite;
   8 import org.eclipse.swt.widgets.Control;
   9 import org.eclipse.swt.widgets.Label;
  10 import org.eclipse.swt.widgets.Text;
  11
  12 /** Editable text part displaying styled text. */
  13 public class EditableText extends StyledControl {
  14         private static final long serialVersionUID = -6372283442330912755L;
  15
  16         private boolean editable = true;
  17         private boolean multiLine = true;
  18
  19         private Color highlightColor;
  20         private Composite highlight;
  21
  22         private boolean useTextAsLabel = false;
  23
  24         public EditableText(Composite parent, int style) {
  25                 super(parent, style);
  26                 editable = !(SWT.READ_ONLY == (style & SWT.READ_ONLY));
  27                 multiLine = !(SWT.SINGLE == (style & SWT.SINGLE));
  28                 highlightColor = parent.getDisplay().getSystemColor(SWT.COLOR_GRAY);
  29                 useTextAsLabel = SWT.FLAT == (style & SWT.FLAT);
  30         }
  31
  32         @Override
  33         protected Control createControl(Composite box, String style) {
  34                 if (isEditing() && getEditable()) {
  35                         return createText(box, style, true);
  36                 } else {
  37                         if (useTextAsLabel) {
  38                                 return createTextLabel(box, style);
  39                         } else {
  40                                 return createLabel(box, style);
  41                         }
  42                 }
  43         }
  44
  45         protected Label createLabel(Composite box, String style) {
  46                 Label lbl = new Label(box, getStyle() | SWT.WRAP);
  47                 lbl.setLayoutData(CmsSwtUtils.fillWidth());
  48                 if (style != null)
  49                         CmsSwtUtils.style(lbl, style);
  50                 CmsSwtUtils.markup(lbl);
  51                 if (mouseListener != null)
  52                         lbl.addMouseListener(mouseListener);
  53                 return lbl;
  54         }
  55
  56         protected Text createTextLabel(Composite box, String style) {
  57                 Text lbl = new Text(box, getStyle() | (multiLine ? SWT.MULTI : SWT.SINGLE));
  58                 lbl.setEditable(false);
  59                 lbl.setLayoutData(CmsSwtUtils.fillWidth());
  60                 if (style != null)
  61                         CmsSwtUtils.style(lbl, style);
  62                 CmsSwtUtils.markup(lbl);
  63                 if (mouseListener != null)
  64                         lbl.addMouseListener(mouseListener);
  65                 return lbl;
  66         }
  67
  68         protected Text createText(Composite box, String style, boolean editable) {
  69                 highlight = new Composite(box, SWT.NONE);
  70                 highlight.setBackground(highlightColor);
  71                 GridData highlightGd = new GridData(SWT.FILL, SWT.FILL, false, false);
  72                 highlightGd.widthHint = 5;
  73                 highlightGd.heightHint = 3;
  74                 highlight.setLayoutData(highlightGd);
  75
  76                 final Text text = new Text(box, getStyle() | (multiLine ? SWT.MULTI : SWT.SINGLE) | SWT.WRAP);
  77                 text.setEditable(editable);
  78                 GridData textLayoutData = CmsSwtUtils.fillWidth();
  79                 // textLayoutData.heightHint = preferredHeight;
  80                 text.setLayoutData(textLayoutData);
  81                 if (style != null)
  82                         CmsSwtUtils.style(text, style);
  83                 text.setFocus();
  84                 return text;
  85         }
  86
  87         @Override
  88         protected void clear(boolean deep) {
  89                 if (highlight != null)
  90                         highlight.dispose();
  91                 super.clear(deep);
  92         }
  93
  94         public void setText(String text) {
  95                 Control child = getControl();
  96                 if (child instanceof Label)
  97                         ((Label) child).setText(text);
  98                 else if (child instanceof Text)
  99                         ((Text) child).setText(text);
 100         }
 101
 102         public Text getAsText() {
 103                 return (Text) getControl();
 104         }
 105
 106         public Label getAsLabel() {
 107                 return (Label) getControl();
 108         }
 109
 110         public String getText() {
 111                 Control child = getControl();
 112
 113                 if (child instanceof Label)
 114                         return ((Label) child).getText();
 115                 else if (child instanceof Text)
 116                         return ((Text) child).getText();
 117                 else
 118                         throw new IllegalStateException("Unsupported control " + child.getClass());
 119         }
 120
 121         /** @deprecated Use {@link #isEditable()} instead. */
 122         @Deprecated
 123         public boolean getEditable() {
 124                 return isEditable();
 125         }
 126
 127         public boolean isEditable() {
 128                 return editable;
 129         }
 130
 131         public void setUseTextAsLabel(boolean useTextAsLabel) {
 132                 this.useTextAsLabel = useTextAsLabel;
 133         }
 134
 135 }