Java CellContext类代码示例

import org.jdesktop.swingx.renderer.CellContext; //导入依赖的package包/类
/**
 * Dirty example how to configure a custom renderer to use
 * treeTableModel.getValueAt(...) for showing.
 * 
 */
public void interactiveTreeTableGetValueRenderer() {
    JXTreeTable tree = new JXTreeTable(new ComponentTreeTableModel(new JXFrame()));
    ComponentProvider<?> provider = new CheckBoxProvider(StringValues.TO_STRING) {
        
        @Override
        protected String getValueAsString(CellContext context) {
            // this is dirty because the design idea was to keep the renderer 
            // unaware of the context type
            TreeTableModel model = (TreeTableModel) ((JXTree) context.getComponent()).getModel();
            // beware: currently works only if the node is not a DefaultMutableTreeNode
            // otherwise the WrappingProvider tries to be smart and replaces the node
            // by the userObject before passing on to the wrappee! 
            Object nodeValue = model.getValueAt(context.getValue(), 0);
            return formatter.getString(nodeValue);            
          }

      
    };
    tree.setTreeCellRenderer(new DefaultTreeRenderer(provider));
    tree.expandAll();
    tree.setHighlighters(HighlighterFactory.createSimpleStriping());
    JFrame frame = wrapWithScrollingInFrame(tree, "treeTable and getValueAt renderer");
    frame.setVisible(true);
}
 

import org.jdesktop.swingx.renderer.CellContext; //导入依赖的package包/类
/**
	 * 
	 */
	public JComponent getRendererComponent(CellContext context) {
		if (context != null) {
			Object value = context.getValue();
			
			if (value instanceof Boolean) {
				rendererComponent =  booleanComp;
			} else {
				rendererComponent = stringComp;
			}
			configureVisuals(context);
			configureContent(context);
		}
//		rendererComponent.setEnabled(context.isEditable());
		
		return rendererComponent;
	}
 

import org.jdesktop.swingx.renderer.CellContext; //导入依赖的package包/类
@Override
protected void configureState(CellContext context) {
	ButtonModel model = this.rendererComponent.getButtonModel();

	if (model != null && context.getComponent() != null) {
		Point p = (Point) context.getComponent().getClientProperty(
				RolloverProducer.ROLLOVER_KEY);
		if (/* hasFocus || */(p != null && (p.x >= 0)
				&& (p.x == context.getColumn()) && (p.y == context.getRow()))) {
			if (!model.isRollover())
				model.setRollover(true);
		} else {
			if (model.isRollover())
				model.setRollover(false);
		}
	}
}
 

import org.jdesktop.swingx.renderer.CellContext; //导入依赖的package包/类
@Override
    protected void format(CellContext arg0) {
        //  从CellContext获取tree中的文字和图标
        JTree tree = (JTree) arg0.getComponent();
        DefaultMutableTreeTableNode node = (DefaultMutableTreeTableNode) arg0.getValue();
        Object obj = node.getUserObject();
        if(obj instanceof FieldEntity){
            _label.setText(((FieldEntity) obj).getKey());
            _checkBox.setSelector((FieldEntity) obj);
        }else if(obj instanceof ClassEntity){
            _label.setText(((ClassEntity) obj).getClassName());
            _checkBox.setSelector((ClassEntity) obj);
        }

//        _label.setIcon(arg0.getIcon());

        //  根据selectionModel中的状态来绘制TristateCheckBox的外观
        TreePath path = tree.getPathForRow(arg0.getRow());
        if (path != null) {
            if (selectionModel.isPathSelected(path, true)) {
                _checkBox.setState(Boolean.TRUE);
            } else if (selectionModel.isPartiallySelected(path)) {
                _checkBox.setState(null);   //  注意“部分选中”状态的API
            } else {
                _checkBox.setState(Boolean.FALSE);
            }
        }

        //  使用BorderLayout布局，依次放置TristateCheckBox和JLabel
        rendererComponent.setLayout(new BorderLayout());
        rendererComponent.add(_checkBox);
        rendererComponent.add(_label, BorderLayout.LINE_END);
    }
 

import org.jdesktop.swingx.renderer.CellContext; //导入依赖的package包/类
@Override
protected void format(CellContext context) {
	Object value = context.getValue();
	if (value==null) {
		labelProvider.format(context);
	}
	else {
		checkboxProvider.format(context);
	}
}
 

import org.jdesktop.swingx.renderer.CellContext; //导入依赖的package包/类
@Override
protected void configureState(CellContext context) {
	Object value = context.getValue();
	if (value==null) {
		labelProvider.configureState(context);
	}
	else {
		checkboxProvider.configureState(context);
	}
}
 

import org.jdesktop.swingx.renderer.CellContext; //导入依赖的package包/类
/**
 * Creates and stores ComponentProviders for all DayStates.
 */
private void installProviders() {
    providers = new HashMap<CalendarState, ComponentProvider<?>>();

    StringValue sv = createDayStringValue(null);
    ComponentProvider<?> provider = new LabelProvider(sv, JLabel.RIGHT);
    providers.put(CalendarState.IN_MONTH, provider);
    providers.put(CalendarState.TODAY, provider);
    providers.put(CalendarState.TRAILING, provider);
    providers.put(CalendarState.LEADING, provider);

    StringValue wsv = createWeekOfYearStringValue(null);
    ComponentProvider<?> weekOfYearProvider = new LabelProvider(wsv,
            JLabel.RIGHT);
    providers.put(CalendarState.WEEK_OF_YEAR, weekOfYearProvider);

    ComponentProvider<?> dayOfWeekProvider = new LabelProvider(JLabel.CENTER) {

        @Override
        protected String getValueAsString(CellContext context) {
            Object value = context.getValue();
            // PENDING JW: this is breaking provider's contract in its
            // role as StringValue! Don't in the general case.
            if (value instanceof Calendar) {
                int day = ((Calendar) value).get(Calendar.DAY_OF_WEEK);
                return ((JXMonthView) context.getComponent()).getDayOfTheWeek(day);
            }
            return super.getValueAsString(context);
        }
        
    };
    providers.put(CalendarState.DAY_OF_WEEK, dayOfWeekProvider);

    StringValue tsv = createMonthHeaderStringValue(null);
    ComponentProvider<?> titleProvider = new LabelProvider(tsv,
            JLabel.CENTER);
    providers.put(CalendarState.TITLE, titleProvider);
}
 

import org.jdesktop.swingx.renderer.CellContext; //导入依赖的package包/类
/**
     * Size effecting decoration vs. initial config (in provider).
     * 
     * Decoration: use highlighter 
     * - works correctly only with largeModel (due to caching issues)
     * 
     * Config in Provider (usually not recommended): 
     * - override getRendererComponent, width always correct, height only
     *   if enabled via setRowHeight(0)
     *  
     */
    public void interactiveBold() {
        JXTree tree = new JXTree();
        tree.setCellRenderer(new DefaultTreeRenderer());
//        tree.setRowHeight(0);
        tree.setLargeModel(true);
        final Font bold = tree.getFont().deriveFont(Font.BOLD, 20f);
        Highlighter hl = new AbstractHighlighter(HighlightPredicate.IS_LEAF) {

            @Override
            protected Component doHighlight(Component component,
                    ComponentAdapter adapter) {
                component.setFont(bold);
                return component;
            }
        };
        tree.addHighlighter(hl);
        JXTree treeP = new JXTree();
        treeP.setRowHeight(0);
        WrappingProvider provider = new WrappingProvider() {
            
            @Override
            public WrappingIconPanel getRendererComponent(CellContext context) {
                super.getRendererComponent(context);
                if (context.isLeaf()) {
                    rendererComponent.setFont(bold);
                }
                return rendererComponent;
            }

        };
        treeP.setCellRenderer(new DefaultTreeRenderer(provider));
        showWithScrollingInFrame(tree, treeP, "bold font: decorate vs. config");
    }
 

import org.jdesktop.swingx.renderer.CellContext; //导入依赖的package包/类
@Override
protected void format(CellContext context) {
	super.format(context);
	Object value = context.getValue();
	if (value instanceof TellapicAbstractUser) {
		TellapicAbstractUser user = (TellapicAbstractUser) value;
		PaintPropertyColor customColor = null;
		Font usedFont = null;
		try {
			customColor = (PaintPropertyColor) user.getCustomProperty(TellapicAbstractUser.CUSTOM_PAINT_PROPERTY_COLOR);
			if (customColor != null) {
				rendererComponent.setForeground(customColor.getColor());
				usedFont = rendererComponent.getFont().deriveFont(Font.BOLD);
			} else {
				usedFont = rendererComponent.getFont().deriveFont(Font.PLAIN); 
			}
		} catch (NoSuchPropertyTypeException e) {
			usedFont = rendererComponent.getFont().deriveFont(Font.PLAIN); 
		}
		rendererComponent.setFont(usedFont);
		String text = rendererComponent.getText();
		if (text != null) {
			int newWidth  = rendererComponent.getFontMetrics(usedFont).stringWidth(text);
			int iconWidth = rendererComponent.getIcon().getIconWidth();
			rendererComponent.setPreferredSize(new Dimension(newWidth + iconWidth + 10, 22));
		}
	}
}
 

import org.jdesktop.swingx.renderer.CellContext; //导入依赖的package包/类
@Override
protected void format(CellContext context) {
	rendererComponent.setIcon(deselectedIcon);
	rendererComponent.setSelectedIcon(selectedIcon);
	rendererComponent.setSelected(getValueAsBoolean(context));
	rendererComponent.setPreferredSize(new Dimension(12,12));
	rendererComponent.setToolTipText(toolTipText);
	//			rendererComponent.setText(getValueAsString(context));
}
 

import org.jdesktop.swingx.renderer.CellContext; //导入依赖的package包/类
@Override
public PluginActionComponent getRendererComponent(CellContext context) {
	if (context.getValue() instanceof String) {
		String uid = (String) context.getValue();
		this.rendererComponent = PluginActionProvider.getPluginActionComponent(uid);
		this.rendererComponent.addContainer(context.getComponent());
	} else {
		this.rendererComponent = PluginActionProvider.emptyPAC;
	}
	return super.getRendererComponent(context);
}
 

import org.jdesktop.swingx.renderer.CellContext; //导入依赖的package包/类
@Override
protected void configureState(CellContext arg0) {
}
 

import org.jdesktop.swingx.renderer.CellContext; //导入依赖的package包/类
@Override
public JComponent getRendererComponent(CellContext context) {
	Object value = context.getValue();
	return value==null ? labelProvider.getRendererComponent(context)
			: checkboxProvider.getRendererComponent(context);
}
 

import org.jdesktop.swingx.renderer.CellContext; //导入依赖的package包/类
/**
 * Size effecting decoration vs. initial config (in provider).
 * 
 * For comparison: JXList
 * 
 * Decoration: use highlighter 
 * - works correctly 
 * 
 * Config in Provider (usually not recommended): 
 * - override getRendererComponent, works correctly
 *  
 */
public void interactiveBoldList() {
    final Locale[] locales = Locale.getAvailableLocales();
    ListModel model = new AbstractListModel() {

        public Object getElementAt(int index) {
            return locales[index];
        }

        public int getSize() {
            return locales.length;
        }
        
    };
    JXList tree = new JXList(model);
    tree.setCellRenderer(new DefaultListRenderer());
    final Font bold = tree.getFont().deriveFont(Font.BOLD, 20f);
    Highlighter hl = new AbstractHighlighter(HighlightPredicate.EVEN) {

        @Override
        protected Component doHighlight(Component component,
                ComponentAdapter adapter) {
            component.setFont(bold);
            return component;
        }
    };
    tree.addHighlighter(hl);
    JXList treeP = new JXList(model);
    WrappingProvider provider = new WrappingProvider() {
        
        @Override
        public WrappingIconPanel getRendererComponent(CellContext context) {
            super.getRendererComponent(context);
            if (context.getRow() % 2 == 0) {
                rendererComponent.setFont(bold);
            }
            return rendererComponent;
        }

    };
    treeP.setCellRenderer(new DefaultListRenderer(provider));
    showWithScrollingInFrame(tree, treeP, "bold font: decorate vs. config");
}
 

import org.jdesktop.swingx.renderer.CellContext; //导入依赖的package包/类
@Override
	protected void configureState(CellContext context) {
		Object value = context.getValue();

		if (value instanceof Boolean) {
			booleanComp.setText(value.toString());
			booleanComp.setSelected((Boolean)value);
			booleanComp.setEnabled(context.isEditable());
			booleanComp.setRolloverEnabled(true);
			rendererComponent =  booleanComp;
		} else {
			stringComp.setText(value.toString());
			
			if (value instanceof Color) {
//				PaintPropertyColor ppc = (PaintPropertyColor) value;
				Color color = (Color) value;
				stringComp.setBackground(color);
				stringComp.setToolTipText("RGB Value: ("+color.getRed()+", "+color.getGreen()+", "+color.getBlue()+")");
				if (context.isSelected())
					stringComp.setBorder(BorderFactory.createMatteBorder(2,5,2,5, ((JTable)context.getComponent()).getSelectionBackground()));
				else
					stringComp.setBorder(BorderFactory.createMatteBorder(2,5,2,5, ((JTable)context.getComponent()).getBackground()));
				stringComp.setHorizontalAlignment(SwingConstants.CENTER);
				stringComp.setIcon(null);
				stringComp.setText(Utils.colorToHexa(color));
				rendererComponent = stringComp;
			} else if (value instanceof PaintPropertyStroke.EndCapsType) {
				PaintPropertyStroke.EndCapsType ect = (PaintPropertyStroke.EndCapsType) value;
				stringComp.setIcon(new ImageIcon(Utils.createIconImage(12, 12, PaintPropertyView.END_CAPS_ICON_PATHS[ect.ordinal()])));
				stringComp.setToolTipText(value.toString());
				stringComp.setHorizontalAlignment(SwingConstants.LEADING);
				rendererComponent = stringComp;
			} else if (value instanceof PaintPropertyStroke.LineJoinsType) {
				PaintPropertyStroke.LineJoinsType ljt = (PaintPropertyStroke.LineJoinsType) value;
				stringComp.setIcon(new ImageIcon(Utils.createIconImage(12, 12, PaintPropertyView.LINE_JOINS_ICON_PATHS[ljt.ordinal()])));
				stringComp.setToolTipText(value.toString());
				stringComp.setHorizontalAlignment(SwingConstants.LEADING);
				rendererComponent = stringComp;
				
//			} else if (value instanceof PaintPropertyFill) {
//				PaintPropertyFill ppf = (PaintPropertyFill) value;
//				stringComp.setBackground((Color) ppf.getFillPaint());
//				stringComp.setToolTipText("RGB Value: ("+((Color)ppf.getFillPaint()).getRed()+", "+((Color)ppf.getFillPaint()).getGreen()+", "+((Color)ppf.getFillPaint()).getBlue()+")");
//				if (context.isSelected())
//					stringComp.setBorder(BorderFactory.createMatteBorder(2,5,2,5, ((JTable)context.getComponent()).getSelectionBackground()));
//				else
//					stringComp.setBorder(BorderFactory.createMatteBorder(2,5,2,5, ((JTable)context.getComponent()).getBackground()));
//				stringComp.setHorizontalAlignment(SwingConstants.CENTER);
//				stringComp.setIcon(null);
//				rendererComponent = stringComp;
			} else {
				stringComp.setToolTipText(value.toString());
				stringComp.setHorizontalAlignment(SwingConstants.LEADING);
				stringComp.setIcon(null);
				rendererComponent = stringComp;
			}
		}
	}