Java FontLib类代码示例

import prefuse.util.FontLib; //导入依赖的package包/类
private String computeTextDimensions(
	VisualItem item, String text,
	double size )
{
	// put item font in temp member variable
	m_font = item.getFont();
	// scale the font as needed
	if ( size != 1 ) {
		m_font = FontLib.getFont(
			m_font.getName(), m_font.getStyle(),
			size * m_font.getSize()
		);
	}

	FontMetrics fm = DEFAULT_GRAPHICS.getFontMetrics( m_font );
	StringBuffer str = null;

	// compute the number of lines and the maximum width
	int nlines = 1, w = 0, start = 0, end = text.indexOf( m_delim );
	m_textDim.width = 0;
	String line;
	for ( ; end >= 0; ++nlines ) {
		w = fm.stringWidth( line = text.substring( start, end ) );
		// abbreviate line as needed
		if ( m_maxTextWidth > -1 && w > m_maxTextWidth ) {
			if ( str == null )
				str = new StringBuffer( text.substring( 0, start ) );
			str.append( StringLib.abbreviate( line, fm, m_maxTextWidth ) );
			str.append( m_delim );
			w = m_maxTextWidth;
		}
		else if ( str != null ) {
			str.append( line ).append( m_delim );
		}
		// update maximum width and substring indices
		m_textDim.width = Math.max( m_textDim.width, w );
		start = end + 1;
		end = text.indexOf( m_delim, start );
	}
	w = fm.stringWidth( line = text.substring( start ) );
	// abbreviate line as needed
	if ( m_maxTextWidth > -1 && w > m_maxTextWidth ) {
		if ( str == null )
			str = new StringBuffer( text.substring( 0, start ) );
		str.append( StringLib.abbreviate( line, fm, m_maxTextWidth ) );
		w = m_maxTextWidth;
	}
	else if ( str != null ) {
		str.append( line );
	}
	// update maximum width
	m_textDim.width = Math.max( m_textDim.width, w );

	// compute the text height
	m_textDim.height = fm.getHeight() * nlines;

	return str == null ? text : str.toString();
}
 

import prefuse.util.FontLib; //导入依赖的package包/类
private String computeTextDimensions(VisualItem item, String text,
                                     double size)
{
    // put item font in temp member variable
    m_font = item.getFont();
    // scale the font as needed
    if ( size != 1 ) {
        m_font = FontLib.getFont(m_font.getName(), m_font.getStyle(),
                                 size*m_font.getSize());
    }
    m_font2 = FontLib.getFont(m_font.getName(), m_font.getStyle(),
            size*m_font.getSize() * 0.8);
    m_font_nic = FontLib.getFont(m_font.getName(), m_font.getStyle() | Font.ITALIC,
    		size*m_font.getSize());
    
    FontMetrics fm = DEFAULT_GRAPHICS.getFontMetrics(m_font);
    FontMetrics fm2 = DEFAULT_GRAPHICS.getFontMetrics(m_font2);
    StringBuffer str = null;
    
    // compute the number of lines and the maximum width
    int nlines = 1, w = 0, start = 0, end = text.indexOf(m_delim);
    if (text.endsWith("\n")) {
    	--nlines;
    }
    m_textDim.width = 0;
    m_headerDim.width = 0;
    String line;
    boolean f = true;
    for ( ; end >= 0; ++nlines ) {
        w = (f? fm : fm2).stringWidth(line=text.substring(start,end));
        f = false;
        // abbreviate line as needed
        if ( m_maxTextWidth > -1 && w > m_maxTextWidth ) {
            if ( str == null )
                str = new StringBuffer(text.substring(0,start));
            str.append(StringLib.abbreviate(line, fm, m_maxTextWidth));
            str.append(m_delim);
            w = m_maxTextWidth;
        } else if ( str != null ) {
            str.append(line).append(m_delim);
        }
        // update maximum width and substring indices
        m_textDim.width = Math.max(m_textDim.width, w);
        start = end+1;
        end = text.indexOf(m_delim, start);
    }
    w = (f? fm : fm2).stringWidth(line=text.substring(start));
    // abbreviate line as needed
    if ( m_maxTextWidth > -1 && w > m_maxTextWidth ) {
        if ( str == null )
            str = new StringBuffer(text.substring(0,start));
        str.append(StringLib.abbreviate(line, fm, m_maxTextWidth));
        w = m_maxTextWidth;
    } else if ( str != null ) {
        str.append(line);
    }
    // update maximum width
    m_textDim.width = Math.max(m_textDim.width, w);
    
    // compute the text height
    m_textDim.height = fm.getHeight() + fm2.getHeight() * (nlines - 1);
    
    m_headerDim.width = m_textDim.width;
    m_headerDim.height = fm.getHeight();
    
    return str==null ? text : str.toString();
}
 

import prefuse.util.FontLib; //导入依赖的package包/类
public AggregateDecoratorDemo() {
    // initialize display and data
    super(new Visualization());
    initDataGroups();
    // set up the renderers
    // draw the nodes as basic shapes
    Renderer nodeR = new ShapeRenderer(20);
    // draw aggregates as polygons with curved edges
    Renderer polyR = new PolygonRenderer(Constants.POLY_TYPE_CURVE);
    ((PolygonRenderer)polyR).setCurveSlack(0.15f);
    DefaultRendererFactory drf = new DefaultRendererFactory();
    drf.setDefaultRenderer(nodeR);
    drf.add("ingroup('aggregates')", polyR);
    drf.add(new InGroupPredicate(EDGE_DECORATORS), new LabelRenderer(VisualItem.LABEL));
    drf.add(new InGroupPredicate(NODE_DECORATORS), new LabelRenderer(VisualItem.LABEL));
    drf.add(new InGroupPredicate(AGGR_DECORATORS), new LabelRenderer("id"));
    m_vis.setRendererFactory(drf);
    // adding decorators, one group for the nodes, one for the edges and one
    // for the aggregates
    DECORATOR_SCHEMA.setDefault(VisualItem.TEXTCOLOR, ColorLib.gray(0));
    m_vis.addDecorators(EDGE_DECORATORS, EDGES, DECORATOR_SCHEMA);
    DECORATOR_SCHEMA.setDefault(VisualItem.TEXTCOLOR, ColorLib.gray(128));
    m_vis.addDecorators(NODE_DECORATORS, NODES, DECORATOR_SCHEMA);
    // the HoverPredicate makes this group of decorators to appear only on mouseOver
    DECORATOR_SCHEMA.setDefault(VisualItem.TEXTCOLOR, ColorLib.gray(255, 128));
    DECORATOR_SCHEMA.setDefault(VisualItem.FONT, FontLib.getFont("Tahoma", Font.BOLD, 48));
    m_vis.addDecorators(AGGR_DECORATORS, AGGR, new HoverPredicate(), DECORATOR_SCHEMA);
    // set up the visual operators
    // first set up all the color actions
    ColorAction nStroke = new ColorAction(NODES, VisualItem.STROKECOLOR);
    nStroke.setDefaultColor(ColorLib.gray(100));
    nStroke.add("_hover", ColorLib.gray(50));
    ColorAction nFill = new ColorAction(NODES, VisualItem.FILLCOLOR);
    nFill.setDefaultColor(ColorLib.gray(255));
    nFill.add("_hover", ColorLib.gray(200));
    ColorAction nEdges = new ColorAction(EDGES, VisualItem.STROKECOLOR);
    nEdges.setDefaultColor(ColorLib.gray(100));
    ColorAction aStroke = new ColorAction(AGGR, VisualItem.STROKECOLOR);
    aStroke.setDefaultColor(ColorLib.gray(200));
    aStroke.add("_hover", ColorLib.rgb(255,100,100));
    int[] palette = new int[] {
        ColorLib.rgba(255,200,200,150),
        ColorLib.rgba(200,255,200,150),
        ColorLib.rgba(200,200,255,150)
    };
    ColorAction aFill = new DataColorAction(AGGR, "id",
            Constants.NOMINAL, VisualItem.FILLCOLOR, palette);
    // bundle the color actions
    ActionList colors = new ActionList();
    colors.add(nStroke);
    colors.add(nFill);
    colors.add(nEdges);
    colors.add(aStroke);
    colors.add(aFill);
    // now create the main layout routine
    ActionList layout = new ActionList(Activity.INFINITY);
    layout.add(colors);
    layout.add(new ForceDirectedLayout(GRAPH, true));
    layout.add(new AggregateLayout2(AGGR));
    layout.add(new LabelLayout2(EDGE_DECORATORS));
    layout.add(new LabelLayout2(NODE_DECORATORS));
    layout.add(new LabelLayout2(AGGR_DECORATORS));
    layout.add(new RepaintAction());
    m_vis.putAction("layout", layout);
    // set up the display
    setSize(500,500);
    pan(250, 250);
    setHighQuality(true);
    addControlListener(new AggregateDragControl2());
    addControlListener(new ZoomControl());
    addControlListener(new PanControl());
    // set things running
    m_vis.run("layout");
}
 

import prefuse.util.FontLib; //导入依赖的package包/类
private String computeTextDimensions(VisualItem item, String text,
                                     double size)
{
    // put item font in temp member variable
    m_font = item.getFont();
    // scale the font as needed
    if ( size != 1 ) {
        m_font = FontLib.getFont(m_font.getName(), m_font.getStyle(),
                                 size*m_font.getSize());
    }
    
    AwtFontMetrics fm = new AwtFontMetrics(m_font);
    StringBuffer str = null;
    
    // compute the number of lines and the maximum width
    int nlines = 1, w = 0, start = 0, end = text.indexOf(m_delim);
    m_textDim.width = 0;
    String line;
    for ( ; end >= 0; ++nlines ) {
        w = fm.stringWidth(line=text.substring(start,end));
        // abbreviate line as needed
        if ( m_maxTextWidth > -1 && w > m_maxTextWidth ) {
            if ( str == null )
                str = new StringBuffer(text.substring(0,start));
            str.append(StringLib.abbreviate(line, fm, m_maxTextWidth));
            str.append(m_delim);
            w = m_maxTextWidth;
        } else if ( str != null ) {
            str.append(line).append(m_delim);
        }
        // update maximum width and substring indices
        m_textDim.width = Math.max(m_textDim.width, w);
        start = end+1;
        end = text.indexOf(m_delim, start);
    }
    w = fm.stringWidth(line=text.substring(start));
    // abbreviate line as needed
    if ( m_maxTextWidth > -1 && w > m_maxTextWidth ) {
        if ( str == null )
            str = new StringBuffer(text.substring(0,start));
        str.append(StringLib.abbreviate(line, fm, m_maxTextWidth));
        w = m_maxTextWidth;
    } else if ( str != null ) {
        str.append(line);
    }
    // update maximum width
    m_textDim.width = Math.max(m_textDim.width, w);
    
    // compute the text height
    m_textDim.height = fm.getHeight() * nlines;
    
    return str==null ? text : str.toString();
}
 

import prefuse.util.FontLib; //导入依赖的package包/类
/**
 * @see prefuse.action.ItemAction#process(prefuse.visual.VisualItem, double)
 */
public void process(VisualItem item, double frac) {
    Font f1 = item.getStartFont(), f2 = item.getEndFont();
    item.setFont(FontLib.getIntermediateFont(f1,f2,frac));
}
 

import prefuse.util.FontLib; //导入依赖的package包/类
public AggregateDecoratorDemo() {
    // initialize display and data
    super(new Visualization());
    initDataGroups();
    // set up the renderers
    // draw the nodes as basic shapes
    Renderer nodeR = new ShapeRenderer(20);
    // draw aggregates as polygons with curved edges
    Renderer polyR = new PolygonRenderer(Constants.POLY_TYPE_CURVE);
    ((PolygonRenderer)polyR).setCurveSlack(0.15f);
    DefaultRendererFactory drf = new DefaultRendererFactory();
    drf.setDefaultRenderer(nodeR);
    drf.add("ingroup('aggregates')", polyR);
    drf.add(new InGroupPredicate(EDGE_DECORATORS), new LabelRenderer(VisualItem.LABEL));
    drf.add(new InGroupPredicate(NODE_DECORATORS), new LabelRenderer(VisualItem.LABEL));
    drf.add(new InGroupPredicate(AGGR_DECORATORS), new LabelRenderer("id"));
    m_vis.setRendererFactory(drf);
    // adding decorators, one group for the nodes, one for the edges and one
    // for the aggregates
    DECORATOR_SCHEMA.setDefault(VisualItem.TEXTCOLOR, ColorLib.gray(0));
    m_vis.addDecorators(EDGE_DECORATORS, EDGES, DECORATOR_SCHEMA);
    DECORATOR_SCHEMA.setDefault(VisualItem.TEXTCOLOR, ColorLib.gray(128));
    m_vis.addDecorators(NODE_DECORATORS, NODES, DECORATOR_SCHEMA);
    // the HoverPredicate makes this group of decorators to appear only on mouseOver
    DECORATOR_SCHEMA.setDefault(VisualItem.TEXTCOLOR, ColorLib.gray(255, 128));
    DECORATOR_SCHEMA.setDefault(VisualItem.FONT, FontLib.getFont("Tahoma", Font.BOLD, 48));
    m_vis.addDecorators(AGGR_DECORATORS, AGGR, new HoverPredicate(), DECORATOR_SCHEMA);
    // set up the visual operators
    // first set up all the color actions
    ColorAction nStroke = new ColorAction(NODES, VisualItem.STROKECOLOR);
    nStroke.setDefaultColor(ColorLib.gray(100));
    nStroke.add("_hover", ColorLib.gray(50));
    ColorAction nFill = new ColorAction(NODES, VisualItem.FILLCOLOR);
    nFill.setDefaultColor(ColorLib.gray(255));
    nFill.add("_hover", ColorLib.gray(200));
    ColorAction nEdges = new ColorAction(EDGES, VisualItem.STROKECOLOR);
    nEdges.setDefaultColor(ColorLib.gray(100));
    ColorAction aStroke = new ColorAction(AGGR, VisualItem.STROKECOLOR);
    aStroke.setDefaultColor(ColorLib.gray(200));
    aStroke.add("_hover", ColorLib.rgb(255,100,100));
    int[] palette = new int[] {
        ColorLib.rgba(255,200,200,150),
        ColorLib.rgba(200,255,200,150),
        ColorLib.rgba(200,200,255,150)
    };
    ColorAction aFill = new DataColorAction(AGGR, "id",
            Constants.NOMINAL, VisualItem.FILLCOLOR, palette);
    // bundle the color actions
    ActionList colors = new ActionList();
    colors.add(nStroke);
    colors.add(nFill);
    colors.add(nEdges);
    colors.add(aStroke);
    colors.add(aFill);
    // now create the main layout routine
    ActionList layout = new ActionList(Activity.INFINITY);
    layout.add(colors);
    layout.add(new ForceDirectedLayout(GRAPH, true));
    layout.add(new AggregateLayout(AGGR));
    layout.add(new LabelLayout2(EDGE_DECORATORS));
    layout.add(new LabelLayout2(NODE_DECORATORS));
    layout.add(new LabelLayout2(AGGR_DECORATORS));
    layout.add(new RepaintAction());
    m_vis.putAction("layout", layout);
    // set up the display
    setSize(500,500);
    pan(250, 250);
    setHighQuality(true);
    addControlListener(new AggregateDragControl());
    addControlListener(new ZoomControl());
    addControlListener(new PanControl());
    // set things running
    m_vis.run("layout");
}
 

import prefuse.util.FontLib; //导入依赖的package包/类
@Override
public Font getFont(VisualItem item) {
	return FontLib.getFont(this.name, item.getDouble(fontSizeFieldName));
}
 

import prefuse.util.FontLib; //导入依赖的package包/类
/**
 * Adds a Graph, refreshes search items and removes aggregates.
 * 
 * @param graph
 */
protected void addGraph(Graph graph){
	if(graph == null) return;		
	// stop visualization
	m_vis.cancel(Actions.DRAW.name()).setEnabled(false);		
	m_vis.cancel(Actions.AGGR.name()).setEnabled(false);	
	// wait till layout calculations finished.
	while(m_aggregateLayout.runs); 
	// remove all rows 
	m_aTable.clear(); 
	// remove old groups
	m_vis.removeGroup(AGGR_DECORATORS);
	m_vis.removeGroup(Visualization.SEARCH_ITEMS);
	m_vis.removeGroup(GRAPH);
	// add new graph
	VisualGraph vg = m_vis.addGraph(GRAPH, graph);
	// set focus group
	VisualItem f = (VisualItem)vg.getNode(0); 
	m_vis.getGroup(Visualization.FOCUS_ITEMS).setTuple(f);
	//f.setFixed(true);		
	m_vis.setValue(EDGES, null, VisualItem.INTERACTIVE, Boolean.FALSE);			
	// refresh search group	
	SearchTupleSet searchTup = new KeywordSearchTupleSet();	
	m_vis.addFocusGroup(Visualization.SEARCH_ITEMS, searchTup);

	searchTup.addTupleSetListener(new TupleSetListener() {
		@Override
		public void tupleSetChanged(TupleSet t, Tuple[] add, Tuple[] rem) {			
			m_vis.run(Actions.DRAW.name() );							
		}
	});		
	//
	SearchQueryBinding sq = new SearchQueryBinding(	vg.getNodeTable(), NODE_NAME,
			(SearchTupleSet)m_vis.getGroup(Visualization.SEARCH_ITEMS));		
	// refresh search gui
	search = sq.createSearchPanel();
	search.setShowResultCount(true);
	search.setBorder(BorderFactory.createEmptyBorder(5,5,4,0));
	search.setFont(FontLib.getFont("Tahoma", Font.PLAIN, 11));  
	
	// refresh box
	m_searchBox.removeAll();		
	m_searchBox.add(Box.createHorizontalStrut(10));
	m_searchBox.add(m_searchLabel);
	m_searchBox.add(Box.createHorizontalGlue());
	m_searchBox.add(search);
	m_searchBox.add(Box.createHorizontalStrut(3));	
	// run		
	m_vis.run(Actions.DRAW.name()).setEnabled(true);
	m_vis.run(Actions.DRAW.name());
	// 
	revalidate();
	repaint();
}