ui/widgets/StyledControl.java

   1 package org.argeo.cms.ui.widgets;
   2
   3 import javax.jcr.Item;
   4
   5 import org.argeo.cms.ui.CmsConstants;
   6 import org.argeo.cms.ui.util.CmsUiUtils;
   7 import org.argeo.eclipse.ui.specific.EclipseUiSpecificUtils;
   8 import org.eclipse.swt.SWT;
   9 import org.eclipse.swt.events.FocusListener;
  10 import org.eclipse.swt.events.MouseListener;
  11 import org.eclipse.swt.widgets.Composite;
  12 import org.eclipse.swt.widgets.Control;
  13
  14 /** Editable text part displaying styled text. */
  15 public abstract class StyledControl extends JcrComposite implements CmsConstants {
  16         private static final long serialVersionUID = -6372283442330912755L;
  17         private Control control;
  18
  19         private Composite container;
  20         private Composite box;
  21
  22         protected MouseListener mouseListener;
  23         protected FocusListener focusListener;
  24
  25         private Boolean editing = Boolean.FALSE;
  26
  27         public StyledControl(Composite parent, int swtStyle) {
  28                 super(parent, swtStyle);
  29                 setLayout(CmsUiUtils.noSpaceGridLayout());
  30         }
  31
  32         public StyledControl(Composite parent, int style, Item item) {
  33                 super(parent, style, item);
  34         }
  35
  36         public StyledControl(Composite parent, int style, Item item, boolean cacheImmediately) {
  37                 super(parent, style, item, cacheImmediately);
  38         }
  39
  40         protected abstract Control createControl(Composite box, String style);
  41
  42         protected Composite createBox(Composite parent) {
  43                 Composite box = new Composite(parent, SWT.INHERIT_DEFAULT);
  44                 setContainerLayoutData(box);
  45                 box.setLayout(CmsUiUtils.noSpaceGridLayout());
  46                 // new Label(box, SWT.NONE).setText("BOX");
  47                 return box;
  48         }
  49
  50         public Control getControl() {
  51                 return control;
  52         }
  53
  54         protected synchronized Boolean isEditing() {
  55                 return editing;
  56         }
  57
  58         public synchronized void startEditing() {
  59                 assert !isEditing();
  60                 editing = true;
  61                 // int height = control.getSize().y;
  62                 String style = (String) EclipseUiSpecificUtils.getStyleData(control);
  63                 clear(false);
  64                 control = createControl(box, style);
  65                 setControlLayoutData(control);
  66
  67                 // add the focus listener to the newly created edition control
  68                 if (focusListener != null)
  69                         control.addFocusListener(focusListener);
  70         }
  71
  72         public synchronized void stopEditing() {
  73                 assert isEditing();
  74                 editing = false;
  75                 String style = (String) EclipseUiSpecificUtils.getStyleData(control);
  76                 clear(false);
  77                 control = createControl(box, style);
  78                 setControlLayoutData(control);
  79         }
  80
  81         public void setStyle(String style) {
  82                 Object currentStyle = null;
  83                 if (control != null)
  84                         currentStyle = EclipseUiSpecificUtils.getStyleData(control);
  85                 if (currentStyle != null && currentStyle.equals(style))
  86                         return;
  87
  88                 // Integer preferredHeight = control != null ? control.getSize().y :
  89                 // null;
  90                 clear(true);
  91                 control = createControl(box, style);
  92                 setControlLayoutData(control);
  93
  94 //              control.getParent().setData(STYLE, style + "_box");
  95                 EclipseUiSpecificUtils.setStyleData(control.getParent(), style + "_box");
  96 //              control.getParent().getParent().setData(STYLE, style + "_container");
  97                 EclipseUiSpecificUtils.setStyleData(control.getParent().getParent(), style + "_container");
  98         }
  99
 100         /** To be overridden */
 101         protected void setControlLayoutData(Control control) {
 102                 control.setLayoutData(CmsUiUtils.fillWidth());
 103         }
 104
 105         /** To be overridden */
 106         protected void setContainerLayoutData(Composite composite) {
 107                 composite.setLayoutData(CmsUiUtils.fillWidth());
 108         }
 109
 110         protected void clear(boolean deep) {
 111                 if (deep) {
 112                         for (Control control : getChildren())
 113                                 control.dispose();
 114                         container = createBox(this);
 115                         box = createBox(container);
 116                 } else {
 117                         control.dispose();
 118                 }
 119         }
 120
 121         public void setMouseListener(MouseListener mouseListener) {
 122                 if (this.mouseListener != null && control != null)
 123                         control.removeMouseListener(this.mouseListener);
 124                 this.mouseListener = mouseListener;
 125                 if (control != null && this.mouseListener != null)
 126                         control.addMouseListener(mouseListener);
 127         }
 128
 129         public void setFocusListener(FocusListener focusListener) {
 130                 if (this.focusListener != null && control != null)
 131                         control.removeFocusListener(this.focusListener);
 132                 this.focusListener = focusListener;
 133                 if (control != null && this.focusListener != null)
 134                         control.addFocusListener(focusListener);
 135         }
 136 }