Java Cell类代码示例

import net.sf.jasperreports.components.table.Cell; //导入依赖的package包/类
protected boolean inScope(PropertyMetadata propertyMetadata, JRElementGroup container)
{
	if (container instanceof JRFrame)
	{
		return inScope(propertyMetadata, (JRElement) container);
	}
	
	List<PropertyScope> scopes = propertyMetadata.getScopes();
	
	if (container instanceof JRBand)
	{
		return scopes.contains(PropertyScope.BAND);
	}
	
	if (container instanceof Cell)
	{
		return scopes.contains(PropertyScope.TABLE_CELL);
	}
	
	if (container instanceof JRCellContents)
	{
		return scopes.contains(PropertyScope.CROSSTAB_CELL);
	}
	
	return false;
}
 

import net.sf.jasperreports.components.table.Cell; //导入依赖的package包/类
protected void writeTableCell(JRComponentElement componentElement, Cell cell, String name, 
		JRXmlWriter reportWriter) throws IOException
{
	if (cell != null)
	{
		JRXmlWriteHelper writer = reportWriter.getXmlWriteHelper();
		writer.startElement(name);
		reportWriter.writeStyleReferenceAttr(cell);
		writer.addAttribute("height", cell.getHeight());
		writer.addAttribute("rowSpan", cell.getRowSpan());
		
		if (isNewerVersionOrEqual(componentElement, reportWriter, JRConstants.VERSION_4_8_0))
		{
			reportWriter.writeProperties(cell);
		}
		reportWriter.writeBox(cell.getLineBox(), JRXmlWriter.JASPERREPORTS_NAMESPACE);
		reportWriter.writeChildElements(cell);
		
		writer.closeElement();//cell
	}
}
 

import net.sf.jasperreports.components.table.Cell; //导入依赖的package包/类
private Rectangle initHeader(Rectangle p, BaseColumn bc, int type, String grName) {
	int y = p.y;
	int h = 0;
	int w = bc.getWidth();
	Cell c = getCell(bc, type, grName);
	if (c != null) {
		y = p.y + c.getHeight();
		h = c.getHeight();
		boundsMap.put(c, new Rectangle(p.x, p.y, w, h));
	}
	if (bc instanceof ColumnGroup) {
		Rectangle pi = new Rectangle(p.x, y, w, h);
		int hi = 0;
		for (BaseColumn bcg : ((ColumnGroup) bc).getColumns()) {
			pi = initHeader(pi, bcg, type, grName);
			pi.setLocation(pi.x, y);
			if (hi < pi.height)
				hi = pi.height;
		}
		h += hi;
	}
	return new Rectangle(p.x + w, y, w, h);
}
 

import net.sf.jasperreports.components.table.Cell; //导入依赖的package包/类
private Rectangle initFooter(Rectangle p, BaseColumn bc, int type, String grName) {
	int y = p.y;
	int h = 0;
	int w = bc.getWidth();
	Cell c = getCell(bc, type, grName);
	if (bc instanceof ColumnGroup) {
		Rectangle pi = new Rectangle(p.x, y, w, h);
		int hi = 0;
		for (BaseColumn bcg : ((ColumnGroup) bc).getColumns()) {
			pi = initFooter(pi, bcg, type, grName);
			pi.setLocation(pi.x, y);
			if (hi < pi.height)
				hi = pi.height;
		}
		h += hi;
	}
	if (c != null) {
		y = p.y + h;
		int cellHeight = c.getHeight();
		boundsMap.put(c, new Rectangle(p.x, y, w, cellHeight));
		h += cellHeight;
	}
	return new Rectangle(p.x + w, y, w, h);
}
 

import net.sf.jasperreports.components.table.Cell; //导入依赖的package包/类
/**
 * 
 */
public static <T extends JRElement> T getCellElement(Class<T> type, Cell cell, boolean oneElementPerCell) 
{
	List<JRChild> detailElements = cell == null ? null : cell.getChildren();
	
	if (detailElements == null || (detailElements != null && oneElementPerCell && detailElements.size() != 1)) 
	{
		return null;
	}
	
	for (JRChild detailElement: detailElements) 
	{
		if (type.isInstance(detailElement) ) 
		{
			@SuppressWarnings("unchecked")
			T de = (T) detailElement;
			return de;
		}
	}
	
	return null;
}
 

import net.sf.jasperreports.components.table.Cell; //导入依赖的package包/类
@Override
public Void visitColumn(Column column)
{
	Cell cell = columnCell(column);
	
	if (!isEmpty(cell))
	{
		int rowSpan = cell.getRowSpan() == null ? 1 : cell.getRowSpan();
		int rowLevel = level + rowSpan - 1;
		JRDesignElementGroup elementGroup = bandInfo.getRowElementGroup(rowLevel);
		
		JRElement cellElement = createColumnCell(column, elementGroup, cell);
		elementGroup.addElement(cellElement);
		bandInfo.cellAdded(level, new CellInfo(cellElement, rowSpan, fillColumn.getColSpan()));
		
		yOffset += cell.getHeight();
	}
	
	xOffset += column.getWidth();
	
	return null;
}
 

import net.sf.jasperreports.components.table.Cell; //导入依赖的package包/类
protected JRExpression getColumnHeaderLabelExpression(Cell header)
{
	List<JRChild> detailElements = header == null ? null : header.getChildren();
	// only consider cells with a single text fields
	if (detailElements == null || detailElements.size() != 1)
	{
		return null;
	}

	JRChild detailElement = detailElements.get(0);
	if (detailElement instanceof JRTextField)
	{
		return ((JRTextField) detailElement).getExpression();
	}

	if (detailElement instanceof JRStaticText)
	{
		return builtinEvaluatorFactory.createConstantExpression(((JRStaticText)detailElement).getText());
	}
	
	return null;
}
 

import net.sf.jasperreports.components.table.Cell; //导入依赖的package包/类
private int getSectionHeight(byte sectionType, String groupName)
{
    int height = 0;
    List<BaseColumn> columns = getTable().getColumns();
    for (BaseColumn c : columns)
    {
        if (c instanceof StandardColumn)
        {
            Cell cell = getCellOfType(c, sectionType, groupName);
            if (cell != null && cell.getHeight().intValue() > height) height = cell.getHeight().intValue();
        }
        else if (c instanceof StandardColumnGroup)
        {
            int gh = getSectionHeight((StandardColumnGroup)c, sectionType, groupName );
            height = (gh > height) ? gh : height;
        }
    }
    return height;

}
 

import net.sf.jasperreports.components.table.Cell; //导入依赖的package包/类
private Cell getCellOfType(BaseColumn col, byte sectionType, String groupName)
{
    if (col == null) return null;
    switch (sectionType)
    {
        case TableCell.TABLE_HEADER: return col.getTableHeader();
        case TableCell.COLUMN_HEADER: return col.getColumnHeader();
        case TableCell.GROUP_HEADER: return col.getGroupHeader(groupName);
        case TableCell.TABLE_FOOTER: return col.getTableFooter();
        case TableCell.COLUMN_FOOTER: return col.getColumnFooter();
        case TableCell.GROUP_FOOTER: return col.getGroupFooter(groupName);
        case TableCell.DETAIL:
        {
            if (col instanceof StandardColumn) return ((StandardColumn)col).getDetailCell();
        }
    }
    return null;
}
 

import net.sf.jasperreports.components.table.Cell; //导入依赖的package包/类
public static void paintCell(Widget widget, Graphics2D g, Cell cell, int x, int y, int width, int height) {
        
        Paint oldPaint = g.getPaint();
        g.setColor(CELL_LABEL_COLOR);
        
        if (cell == null)
        {
            g.setPaint(getNullAreaTexture());
            g.fillRect(x, y, width, height);
            g.setPaint(CELL_LABEL_COLOR);
            g.drawRect(x, y, width, height);
            return;
        }

        g.drawRect(x, y, width, height);

        // paint frame...
        g.setPaint(AbstractReportObjectScene.DESIGN_LINE_COLOR);
        paintFrame(widget, g, cell.getLineBox(),cell.getStyle(),x,y,width,height);
        g.setPaint(oldPaint);
}
 

import net.sf.jasperreports.components.table.Cell; //导入依赖的package包/类
private Rectangle initDetail(Rectangle p, BaseColumn bc) {
	int h = 0;
	int w = 0;
	if (bc != null && bc instanceof Column) {
		Cell c = ((Column) bc).getDetailCell();
		w = bc.getWidth();
		if (c != null)
			h = c.getHeight();
		boundsMap.put(c, new Rectangle(p.x, p.y, w, h));
	}
	return new Rectangle(p.x + w, p.y, w, h);
}
 

import net.sf.jasperreports.components.table.Cell; //导入依赖的package包/类
public Rectangle getBounds(int width, Cell cell, BaseColumn col) {
	Rectangle b = boundsMap.get(cell);
	if (b != null)
		return b;
	int w = col != null ? col.getWidth() : 0;
	int h = cell != null ? cell.getHeight() : 0;
	return new Rectangle(0, 0, w, h);
}
 

import net.sf.jasperreports.components.table.Cell; //导入依赖的package包/类
public static Cell getCell(BaseColumn bc, int type, String grName) {
	Cell cell = null;
	switch (type) {
	case TABLE_HEADER:
		cell = bc.getTableHeader();
		break;
	case TABLE_FOOTER:
		cell = bc.getTableFooter();
		break;
	case COLUMN_HEADER:
		cell = bc.getColumnHeader();
		break;
	case COLUMN_FOOTER:
		cell = bc.getColumnFooter();
		break;
	case COLUMN_DETAIL:
		if (bc instanceof Column)
			cell = ((Column) bc).getDetailCell();
		break;
	case COLUMN_GROUP_HEADER:
		cell = bc.getGroupHeader(grName);
		break;
	case COLUMN_GROUP_FOOTER:
		cell = bc.getGroupFooter(grName);
		break;
	}
	return cell;
}
 

import net.sf.jasperreports.components.table.Cell; //导入依赖的package包/类
protected void visitCell(Cell cell)
{
	if (cell != null)
	{
		ElementsVisitorUtils.visitElements(visitor, cell.getChildren());
	}
}
 

import net.sf.jasperreports.components.table.Cell; //导入依赖的package包/类
@Override
protected boolean isEmpty(Cell cell)
{
	if (super.isEmpty(cell))
	{
		return true;
	}
	
	// also threat zero height cells as empty.
	// FIXME only doing this for the detail cells to minimize impact, it should apply to all cells
	List<JRChild> children = cell.getChildren();
	return cell.getHeight() == 0 && (children == null || children.isEmpty());
}