zabstractcellpainter.java

用Java写的报表.功能如下: 0.内建网络打印,网络预览功能！ 1.文件操作。包括url 指定的文件。 2.全功能打印支持。包括打印预览。 3.Undo 和 redo。 4.合并单元格。 5.Cel

/*
 * Copyright 2002 EZCell , Inc. All rights reserved.
 * Version  1.0.
 * Author   W.John
 */
package ezcell;

import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.geom.Line2D;



/**
 * DOCUMENT ME!
 *
 * @version 1.00
 * @author W.John
 */
class ZAbstractCellPainter implements ZCellPainter {
    protected int leftHeadText;
    protected int topHeadText;
    protected ZPen gridxPen;
    protected ZPen gridyPen;
    protected boolean gridxVisible;
    protected boolean gridyVisible;
    protected Line2D line = new Line2D.Float(0, 0, 0, 0);

    ZAbstractCellPainter(ZDefaultUI ui) {
        updateUI(ui);
    }

    /**
     *
     * @param g2
     * @param cellLoc
     * @param cell
     */
    public void paint(Graphics2D g2, ZRect cellLoc, ZCell cell) {
    }

    /**
     *
     * @param ui
     */
    public void updateUI(ZDefaultUI ui) {
        leftHeadText = ((Integer) ui.get(ZDefaultUI.LEFT_HEAD_TEXT)).intValue();
        topHeadText = ((Integer) ui.get(ZDefaultUI.TOP_HEAD_TEXT)).intValue();
        gridxPen = (ZPen) ui.get(ZDefaultUI.GRID_X_PEN);
        gridyPen = (ZPen) ui.get(ZDefaultUI.GRID_Y_PEN);
        gridxVisible = ((Boolean) ui.get(ZDefaultUI.GRID_X_VISIBLE)).booleanValue();
        gridyVisible = ((Boolean) ui.get(ZDefaultUI.GRID_Y_VISIBLE)).booleanValue();
    }

    /**
     *
     * @param g2
     * @param cellLoc
     *
     * @return
     */
    protected boolean isDirtyRect(Graphics2D g2, ZRect cellLoc) {
        Rectangle clipRect = g2.getClipBounds();

        return !((cellLoc.right < clipRect.x) || (cellLoc.bottom < clipRect.y) ||
               (cellLoc.top > (clipRect.y + clipRect.height)) || cellLoc.left > (clipRect.x + clipRect.width));
    }

    /**
     *
     * @param cell
     * @param g2
     * @param cellLoc
     * @param str
     * @param alignX
     * @param alignY
     * @param font
     */
    protected void paintText(ZCell cell, Graphics2D g2, ZRect cellLoc, String str, int alignX, int alignY, ZFont font) {
        if (str == null) {
            return;
        }

        font.paint(g2, cellLoc, str, alignX, alignY,cell.isWordWrap() );
    }
}