testeschergraphics.java

介绍java核心技术的pio编程方法以及基本概念

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   (the "License"); you may not use this file except in compliance with
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   distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.poi.hssf.usermodel;

import junit.framework.TestCase;

import java.awt.*;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;

/**
 * Tests the capabilities of the EscherGraphics class.
 * 
 * All tests have two escher groups available to them,
 *  one anchored at 0,0,1022,255 and another anchored
 *  at 20,30,500,200 
 *
 * @author Glen Stampoultzis (glens at apache.org)
 */
public class TestEscherGraphics extends TestCase
{
	private HSSFWorkbook workbook;
	private HSSFPatriarch patriarch;
    private HSSFShapeGroup escherGroupA;
    private HSSFShapeGroup escherGroupB;
    private EscherGraphics graphics;

    protected void setUp() throws Exception
    {
        workbook = new HSSFWorkbook();
        
        HSSFSheet sheet = workbook.createSheet("test");
        patriarch = sheet.createDrawingPatriarch();
        escherGroupA = patriarch.createGroup(new HSSFClientAnchor(0,0,1022,255,(short)0,0,(short) 0,0));
        escherGroupB = patriarch.createGroup(new HSSFClientAnchor(20,30,500,200,(short)0,0,(short) 0,0));
//        escherGroup = new HSSFShapeGroup(null, new HSSFChildAnchor());
        graphics = new EscherGraphics(this.escherGroupA, workbook, Color.black, 1.0f);
        super.setUp();
    }

    public void testGetFont() throws Exception
    {
        Font f = graphics.getFont();
        if (f.toString().indexOf("dialog") == -1 && f.toString().indexOf("Dialog") == -1)
            assertEquals("java.awt.Font[family=Arial,name=Arial,style=plain,size=10]", f.toString());
    }

    public void testGetFontMetrics() throws Exception
    {
        Font f = graphics.getFont();
        if (f.toString().indexOf("dialog") != -1 || f.toString().indexOf("Dialog") != -1)
            return;
        FontMetrics fontMetrics = graphics.getFontMetrics(graphics.getFont());
        assertEquals(7, fontMetrics.charWidth('X'));
        assertEquals("java.awt.Font[family=Arial,name=Arial,style=plain,size=10]", fontMetrics.getFont().toString());
    }

    public void testSetFont() throws Exception
    {
        Font f = new Font("Helvetica", 0, 12);
        graphics.setFont(f);
        assertEquals(f, graphics.getFont());
    }

    public void testSetColor() throws Exception
    {
        graphics.setColor(Color.red);
        assertEquals(Color.red, graphics.getColor());
    }

    public void testFillRect() throws Exception
    {
        graphics.fillRect( 10, 10, 20, 20 );
        HSSFSimpleShape s = (HSSFSimpleShape) escherGroupA.getChildren().get(0);
        assertEquals(HSSFSimpleShape.OBJECT_TYPE_RECTANGLE, s.getShapeType());
        assertEquals(10, s.getAnchor().getDx1());
        assertEquals(10, s.getAnchor().getDy1());
        assertEquals(30, s.getAnchor().getDy2());
        assertEquals(30, s.getAnchor().getDx2());
    }

    public void testDrawString() throws Exception
    {
        graphics.drawString("This is a test", 10, 10);
        HSSFTextbox t = (HSSFTextbox) escherGroupA.getChildren().get(0);
        assertEquals("This is a test", t.getString().getString().toString());
    }

    public void testGetDataBackAgain() throws Exception {
    	HSSFSheet s;
    	HSSFShapeGroup s1;
    	HSSFShapeGroup s2;
    	
    	patriarch.setCoordinates(10, 20, 30, 40);
    	
    	ByteArrayOutputStream baos = new ByteArrayOutputStream();
    	workbook.write(baos);
    	workbook = new HSSFWorkbook(new ByteArrayInputStream(baos.toByteArray()));
    	s = workbook.getSheetAt(0);
    	
    	patriarch = s.getDrawingPatriarch();
    	
    	assertNotNull(patriarch);
    	assertEquals(10, patriarch.getX1());
    	assertEquals(20, patriarch.getY1());
    	assertEquals(30, patriarch.getX2());
    	assertEquals(40, patriarch.getY2());
    	
    	// Check the two groups too
    	assertEquals(2, patriarch.countOfAllChildren());
    	assertTrue(patriarch.getChildren().get(0) instanceof HSSFShapeGroup);
    	assertTrue(patriarch.getChildren().get(1) instanceof HSSFShapeGroup);
    	
    	s1 = (HSSFShapeGroup)patriarch.getChildren().get(0);
    	s2 = (HSSFShapeGroup)patriarch.getChildren().get(1);
    	
    	assertEquals(0, s1.getX1());
    	assertEquals(0, s1.getY1());
    	assertEquals(1023, s1.getX2());
    	assertEquals(255, s1.getY2());
    	assertEquals(0, s2.getX1());
    	assertEquals(0, s2.getY1());
    	assertEquals(1023, s2.getX2());
    	assertEquals(255, s2.getY2());
    	
    	assertEquals(0, s1.getAnchor().getDx1());
    	assertEquals(0, s1.getAnchor().getDy1());
    	assertEquals(1022, s1.getAnchor().getDx2());
    	assertEquals(255, s1.getAnchor().getDy2());
    	assertEquals(20, s2.getAnchor().getDx1());
    	assertEquals(30, s2.getAnchor().getDy1());
    	assertEquals(500, s2.getAnchor().getDx2());
    	assertEquals(200, s2.getAnchor().getDy2());
    	
    	
    	// Write and re-load once more, to check that's ok
    	baos = new ByteArrayOutputStream();
    	workbook.write(baos);
    	workbook = new HSSFWorkbook(new ByteArrayInputStream(baos.toByteArray()));
    	s = workbook.getSheetAt(0);
    	patriarch = s.getDrawingPatriarch();
    	
    	assertNotNull(patriarch);
    	assertEquals(10, patriarch.getX1());
    	assertEquals(20, patriarch.getY1());
    	assertEquals(30, patriarch.getX2());
    	assertEquals(40, patriarch.getY2());
    	
    	// Check the two groups too
    	assertEquals(2, patriarch.countOfAllChildren());
    	assertTrue(patriarch.getChildren().get(0) instanceof HSSFShapeGroup);
    	assertTrue(patriarch.getChildren().get(1) instanceof HSSFShapeGroup);
    	
    	s1 = (HSSFShapeGroup)patriarch.getChildren().get(0);
    	s2 = (HSSFShapeGroup)patriarch.getChildren().get(1);
    	
    	assertEquals(0, s1.getX1());
    	assertEquals(0, s1.getY1());
    	assertEquals(1023, s1.getX2());
    	assertEquals(255, s1.getY2());
    	assertEquals(0, s2.getX1());
    	assertEquals(0, s2.getY1());
    	assertEquals(1023, s2.getX2());
    	assertEquals(255, s2.getY2());
    	
    	assertEquals(0, s1.getAnchor().getDx1());
    	assertEquals(0, s1.getAnchor().getDy1());
    	assertEquals(1022, s1.getAnchor().getDx2());
    	assertEquals(255, s1.getAnchor().getDy2());
    	assertEquals(20, s2.getAnchor().getDx1());
    	assertEquals(30, s2.getAnchor().getDy1());
    	assertEquals(500, s2.getAnchor().getDx2());
    	assertEquals(200, s2.getAnchor().getDy2());
    	
    	// Change the positions of the first groups,
    	//  but not of their anchors
    	s1.setCoordinates(2, 3, 1021, 242);
    	
    	baos = new ByteArrayOutputStream();
    	workbook.write(baos);
    	workbook = new HSSFWorkbook(new ByteArrayInputStream(baos.toByteArray()));
    	s = workbook.getSheetAt(0);
    	patriarch = s.getDrawingPatriarch();
    	
    	assertNotNull(patriarch);
    	assertEquals(10, patriarch.getX1());
    	assertEquals(20, patriarch.getY1());
    	assertEquals(30, patriarch.getX2());
    	assertEquals(40, patriarch.getY2());
    	
    	// Check the two groups too
    	assertEquals(2, patriarch.countOfAllChildren());
    	assertEquals(2, patriarch.getChildren().size());
    	assertTrue(patriarch.getChildren().get(0) instanceof HSSFShapeGroup);
    	assertTrue(patriarch.getChildren().get(1) instanceof HSSFShapeGroup);
    	
    	s1 = (HSSFShapeGroup)patriarch.getChildren().get(0);
    	s2 = (HSSFShapeGroup)patriarch.getChildren().get(1);
    	
    	assertEquals(2, s1.getX1());
    	assertEquals(3, s1.getY1());
    	assertEquals(1021, s1.getX2());
    	assertEquals(242, s1.getY2());
    	assertEquals(0, s2.getX1());
    	assertEquals(0, s2.getY1());
    	assertEquals(1023, s2.getX2());
    	assertEquals(255, s2.getY2());
    	
    	assertEquals(0, s1.getAnchor().getDx1());
    	assertEquals(0, s1.getAnchor().getDy1());
    	assertEquals(1022, s1.getAnchor().getDx2());
    	assertEquals(255, s1.getAnchor().getDy2());
    	assertEquals(20, s2.getAnchor().getDx1());
    	assertEquals(30, s2.getAnchor().getDy1());
    	assertEquals(500, s2.getAnchor().getDx2());
    	assertEquals(200, s2.getAnchor().getDy2());
    	
    	
    	// Now add some text to one group, and some more
    	//  to the base, and check we can get it back again
    	HSSFTextbox tbox1 =
    		patriarch.createTextbox(new HSSFClientAnchor(1,2,3,4, (short)0,0,(short)0,0));
    	tbox1.setString(new HSSFRichTextString("I am text box 1"));
    	HSSFTextbox tbox2 =
    		s2.createTextbox(new HSSFChildAnchor(41,42,43,44));
    	tbox2.setString(new HSSFRichTextString("This is text box 2"));
    	
    	assertEquals(3, patriarch.getChildren().size());
    	
    	
    	baos = new ByteArrayOutputStream();
    	workbook.write(baos);
    	workbook = new HSSFWorkbook(new ByteArrayInputStream(baos.toByteArray()));
    	s = workbook.getSheetAt(0);
    	
    	patriarch = s.getDrawingPatriarch();
    	
    	assertNotNull(patriarch);
    	assertEquals(10, patriarch.getX1());
    	assertEquals(20, patriarch.getY1());
    	assertEquals(30, patriarch.getX2());
    	assertEquals(40, patriarch.getY2());
    	
    	// Check the two groups and the text
    	assertEquals(3, patriarch.countOfAllChildren());
    	assertEquals(2, patriarch.getChildren().size());
    	
    	// Should be two groups and a text
    	assertTrue(patriarch.getChildren().get(0) instanceof HSSFShapeGroup);
    	assertTrue(patriarch.getChildren().get(1) instanceof HSSFTextbox);
//    	assertTrue(patriarch.getChildren().get(2) instanceof HSSFShapeGroup);
    	
    	s1 = (HSSFShapeGroup)patriarch.getChildren().get(0);
    	tbox1 = (HSSFTextbox)patriarch.getChildren().get(1);
    	
//    	s2 = (HSSFShapeGroup)patriarch.getChildren().get(1);
    	
    	assertEquals(2, s1.getX1());
    	assertEquals(3, s1.getY1());
    	assertEquals(1021, s1.getX2());
    	assertEquals(242, s1.getY2());
    	assertEquals(0, s2.getX1());
    	assertEquals(0, s2.getY1());
    	assertEquals(1023, s2.getX2());
    	assertEquals(255, s2.getY2());
    	
    	assertEquals(0, s1.getAnchor().getDx1());
    	assertEquals(0, s1.getAnchor().getDy1());
    	assertEquals(1022, s1.getAnchor().getDx2());
    	assertEquals(255, s1.getAnchor().getDy2());
    	assertEquals(20, s2.getAnchor().getDx1());
    	assertEquals(30, s2.getAnchor().getDy1());
    	assertEquals(500, s2.getAnchor().getDx2());
    	assertEquals(200, s2.getAnchor().getDy2());
    	
    	// Not working just yet
    	//assertEquals("I am text box 1", tbox1.getString().getString());
    }
}