我在哪里可以找到globalOffsetX，globalOffsetY和放大课程扩展新的JRGraphics2DExporter？

我正在使用它们的项目中升级库（从3.x版本到6.0.0），并且我不知道在哪里得到这3个缺失变量。他们曾经在旧版本中受到保护。现在他们是私人的。我在哪里可以找到globalOffsetX，globalOffsetY和放大课程扩展新的JRGraphics2DExporter？

我的旧代码：

import java.awt.Rectangle; 
import java.awt.RenderingHints; 
import java.awt.Shape; 
import java.awt.geom.AffineTransform; 
import net.sf.jasperreports.engine.JRException; 
import net.sf.jasperreports.engine.JRPrintPage; 
import net.sf.jasperreports.engine.export.JRGraphics2DExporter; 

public class SRptGraphics2DExporter extends JRGraphics2DExporter { 

    Double rotationAngle = 0.0; 

    public SRptGraphics2DExporter() throws JRException { 
     super(); 
     this.setParameter(SRptGraphics2DExporterParameter.ROTATION_ANGLE, new Double(0.0)); 
    } 

    @Override 
    public void exportReportToGraphics2D() throws JRException { 
     boolean printPageBorders = (Boolean) parameters.get(SRptGraphics2DExporterParameter.PRINT_PAGE_BORDERS); 
     rotationAngle = (Double) parameters.get(SRptGraphics2DExporterParameter.ROTATION_ANGLE); 
     grx.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); 
     grx.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON); 
     grx.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC); 

     AffineTransform atrans = new AffineTransform(); 
     atrans.translate(globalOffsetX, globalOffsetY); 
     atrans.rotate(rotationAngle); 
     atrans.scale(zoom, zoom); 

     AffineTransform sa = grx.getTransform(); 
     grx.transform(atrans); 

     java.util.List pages = jasperPrint.getPages(); 
     if (pages != null) { 
      Shape oldClipShape = grx.getClip(); 
      grx.clip(new Rectangle(0, 0, jasperPrint.getPageWidth(), jasperPrint.getPageHeight())); 

      try { 
       JRPrintPage page = (JRPrintPage) pages.get(startPageIndex); 
       exportPage(page); 
       if (printPageBorders) { 
        grx.drawRect(0, 0, jasperPrint.getPageWidth(), jasperPrint.getPageHeight()); 
       } 
      } finally { 
       grx.setClip(oldClipShape); 
       grx.setTransform(sa); 
      } 
     } 
    } 
}

来源

2016-07-07 Přemysl Šťastný

发现它在受保护的JR（约3.xx的版本） –

的旧的源代码 - （变焦不可在这个版本中）http://grepcode.com/file/repo1.maven.org/maven2/net.sf.jasperreports/jasperreports/5.0.4/net/sf/jasperreports/engine/JRAbstractExporter.java#JRAbstractExporter.0globalOffsetX –

我试图用新的库来编译这个代码......它与旧的一起工作，并与新的一个netbeans告诉我，符号无法找到 - 我应该发送整个班？ –

我终于找到继承功能getCurrentItemConfiguration();，在那里我找到了这些功能： getCurrentItemConfiguration().getZoomRatio();，getCurrentItemConfiguration().getOffsetX()和getCurrentItemConfiguration().getOffsetY()。

所以我改变了源代码（有一些其他的变化，由于其他不兼容）：

@Override 
public void exportReportToGraphics2D(Graphics2D grx) throws JRException { 

    Shape oldClipShape = grx.getClip(); 
    boolean printPageBorders = (Boolean) parameters.get(SRptGraphics2DExporterParameter.PRINT_PAGE_BORDERS); 
    grx.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); 
    //grx.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF); 
    grx.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON); 
    grx.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC); 

    rotationAngle = (Double) parameters.get(SRptGraphics2DExporterParameter.ROTATION_ANGLE); 

    setCurrentExporterInputItem(exporterInput.getItems().get(0)); 

    ReportExportConfiguration configuration = getCurrentItemConfiguration(); 
    AffineTransform sa = grx.getTransform(); 

    float zoom = 1f; 

    Float zoomRatio = getCurrentItemConfiguration().getZoomRatio(); 
    if (zoomRatio != null) { 
     zoom = zoomRatio.floatValue(); 
     if (zoom <= 0) { 
      throw new JRRuntimeException(
        EXCEPTION_MESSAGE_KEY_INVALID_ZOOM_RATIO, 
        new Object[]{zoom} 
      ); 
     } 
    } 

    AffineTransform atrans = new AffineTransform(); 
    atrans.translate(
      configuration.getOffsetX() == null ? 0 : configuration.getOffsetX(), 
      configuration.getOffsetY() == null ? 0 : configuration.getOffsetY() 
    ); 
    atrans.rotate(rotationAngle); 

    atrans.scale(zoom, zoom); 

    grx.transform(atrans); 

    List<JRPrintPage> pages = jasperPrint.getPages(); 
    if (pages != null) { 
     PageRange pageRange = getPageRange(); 
     int startPageIndex = (pageRange == null || pageRange.getStartPageIndex() == null) ? 0 : pageRange.getStartPageIndex(); 

     PrintPageFormat pageFormat = jasperPrint.getPageFormat(startPageIndex); 

     grx.clip(new Rectangle(0, 0, pageFormat.getPageWidth(), pageFormat.getPageHeight())); 
     atrans = grx.getTransform(); 
     try {     
      AffineTransform ertrans = new AffineTransform(); 
      ertrans.translate(
        configuration.getOffsetX() == null ? 0 : -configuration.getOffsetX(), 
        configuration.getOffsetY() == null ? 0 : -configuration.getOffsetY() 
      ); 
      grx.transform(ertrans); 

      exportPage(grx, startPageIndex); 

      grx.setTransform(atrans); 

      if (printPageBorders) { 
       grx.drawRect(1, 1, pageFormat.getPageWidth() -1, pageFormat.getPageHeight()-1); 
      } 


     } finally { 

      grx.setTransform(sa); 
      grx.setClip(oldClipShape); 

     } 
    } 
}

来源

2016-07-22 18:55:38

我在哪里可以找到globalOffsetX，globalOffsetY和放大课程扩展新的JRGraphics2DExporter？

回答

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