pdftemplate.java

一个java操作pdf文件的开发包,很好用的.

     * @param b an element of the transformation matrix
     * @param c an element of the transformation matrix
     * @param d an element of the transformation matrix
     * @param e an element of the transformation matrix
     * @param f an element of the transformation matrix
     * @throws DocumentException on error
     */
    
    public void addImage(Image image, float a, float b, float c, float d, float e, float f) throws DocumentException {
        try {
            PdfName name;
            if (image.isImgTemplate()) {
                name = pdf.addDirectImageSimple(image);
                PdfTemplate template = image.templateData();
                float w = template.getWidth();
                float h = template.getHeight();
                addTemplate(template, a / w, b / w, c / h, d / h, e, f);
            }
            else {
                Image maskImage = image.getImageMask();
                if (maskImage != null) {
                    PdfName mname = pdf.addDirectImageSimple(maskImage);
                    xObjectDictionary.put(mname, writer.getImageReference(mname));
                }
                name = pdf.addDirectImageSimple(image);
                content.append("q ");
                content.append(a).append(' ');
                content.append(b).append(' ');
                content.append(c).append(' ');
                content.append(d).append(' ');
                content.append(e).append(' ');
                content.append(f).append(" cm ");
                content.append(name.toString()).append(" Do Q").append_i(separator);
            }
            if (!image.isImgTemplate())
                xObjectDictionary.put(name, writer.getImageReference(name));
        }
        catch (Exception ee) {
            throw new DocumentException(ee.getMessage());
        }
    }
    
    public void setColorFill(PdfSpotColor sp, float tint) {
        state.colorDetails = writer.addSimple(sp);
        colorDictionary.put(state.colorDetails.getColorName(), state.colorDetails.getIndirectReference());
        content.append(state.colorDetails.getColorName().toPdf(null)).append(" cs ").append(tint).append(" scn").append_i(separator);
    }
    
    public void setColorStroke(PdfSpotColor sp, float tint) {
        state.colorDetails = writer.addSimple(sp);
        colorDictionary.put(state.colorDetails.getColorName(), state.colorDetails.getIndirectReference());
        content.append(state.colorDetails.getColorName().toPdf(null)).append(" CS ").append(tint).append(" SCN").append_i(separator);
    }
    
    public void setPatternFill(PdfPatternPainter p) {
        if (p.isStencil()) {
            setPatternFill(p, p.getDefaultColor());
            return;
        }
        checkWriter();
        PdfName name = writer.addSimplePattern(p);
        patternDictionary.put(name, p.getIndirectReference());
        content.append(PdfName.PATTERN.toPdf(null)).append(" cs ").append(name.toPdf(null)).append(" scn").append_i(separator);
    }
    
    public void setPatternStroke(PdfPatternPainter p) {
        if (p.isStencil()) {
            setPatternStroke(p, p.getDefaultColor());
            return;
        }
        checkWriter();
        PdfName name = writer.addSimplePattern(p);
        patternDictionary.put(name, p.getIndirectReference());
        content.append(PdfName.PATTERN.toPdf(null)).append(" CS ").append(name.toPdf(null)).append(" SCN").append_i(separator);
    }

    public void setPatternFill(PdfPatternPainter p, Color color, float tint) {
        checkWriter();
        if (!p.isStencil())
            throw new RuntimeException("An uncolored pattern was expected.");
        PdfName name = writer.addSimplePattern(p);
        patternDictionary.put(name, p.getIndirectReference());
        ColorDetails csDetail = writer.addSimplePatternColorspace(color);
        colorDictionary.put(csDetail.getColorName(), csDetail.getIndirectReference());
        content.append(csDetail.getColorName().toPdf(null)).append(" cs").append_i(separator);
        outputColorNumbers(color, tint);
        content.append(' ').append(name.toPdf(null)).append(" scn").append_i(separator);
    }
    
    public void setPatternStroke(PdfPatternPainter p, Color color, float tint) {
        checkWriter();
        if (!p.isStencil())
            throw new RuntimeException("An uncolored pattern was expected.");
        PdfName name = writer.addSimplePattern(p);
        patternDictionary.put(name, p.getIndirectReference());
        ColorDetails csDetail = writer.addSimplePatternColorspace(color);
        colorDictionary.put(csDetail.getColorName(), csDetail.getIndirectReference());
        content.append(csDetail.getColorName().toPdf(null)).append(" CS").append_i(separator);
        outputColorNumbers(color, tint);
        content.append(' ').append(name.toPdf(null)).append(" SCN").append_i(separator);
    }

    public void paintShading(PdfShading shading) {
        writer.addSimpleShading(shading);
        shadingDictionary.put(shading.getShadingName(), shading.getShadingReference());
        content.append(shading.getShadingName().toPdf(null)).append(" sh").append_i(separator);
        ColorDetails details = shading.getColorDetails();
        if (details != null)
            colorDictionary.put(details.getColorName(), details.getIndirectReference());
    }
    
    public void setShadingFill(PdfShadingPattern shading) {
        writer.addSimpleShadingPattern(shading);
        patternDictionary.put(shading.getPatternName(), shading.getPatternReference());
        content.append(PdfName.PATTERN.toPdf(null)).append(" cs ").append(shading.getPatternName().toPdf(null)).append(" scn").append_i(separator);
        ColorDetails details = shading.getColorDetails();
        if (details != null)
            colorDictionary.put(details.getColorName(), details.getIndirectReference());
    }

    public void setShadingStroke(PdfShadingPattern shading) {
        writer.addSimpleShadingPattern(shading);
        patternDictionary.put(shading.getPatternName(), shading.getPatternReference());
        content.append(PdfName.PATTERN.toPdf(null)).append(" CS ").append(shading.getPatternName().toPdf(null)).append(" SCN").append_i(separator);
        ColorDetails details = shading.getColorDetails();
        if (details != null)
            colorDictionary.put(details.getColorName(), details.getIndirectReference());
    }
    
    public void beginVariableText() {
        content.append("/Tx BMC ");
    }
    
    public void endVariableText() {
        content.append("EMC ");
    }
    
    /**
     * Constructs the resources used by this template.
     *
     * @return the resources used by this template
     */
    
    PdfObject getResources() {
        PdfResources resources = new PdfResources();
        int procset = PdfProcSet.PDF;
        if (fontDictionary.containsFont()) {
            resources.add(fontDictionary);
            procset |= PdfProcSet.TEXT;
        }
        if (xObjectDictionary.containsXObject()) {
            resources.add(xObjectDictionary);
            procset |= PdfProcSet.IMAGEC;
        }
        if (colorDictionary.containsColorSpace())
            resources.add(colorDictionary);
        if (patternDictionary.containsPattern())
            resources.add(patternDictionary);
        if (shadingDictionary.containsShading())
            resources.add(shadingDictionary);
        resources.add(new PdfProcSet(procset));
        return resources;
    }
    
    /**
     * Gets the stream representing this template.
     *
     * @return the stream representing this template
     */
    
    PdfStream getFormXObject() throws IOException {
        return new PdfFormXObject(this);
    }
    
    /**
     * Set the font and the size for the subsequent text writing.
     *
     * @param bf the font
     * @param size the font size in points
     */
    
    public void setFontAndSize(BaseFont bf, float size) {
        state.size = size;
        state.fontDetails = writer.addSimple(bf);
        PdfName name = state.fontDetails.getFontName();
        content.append(name.toPdf(null)).append(' ').append(size).append(" Tf").append_i(separator);
        fontDictionary.put(name, state.fontDetails.getIndirectReference());
    }
    
    /**
     * Gets a duplicate of this <CODE>PdfTemplate</CODE>. All
     * the members are copied by reference but the buffer stays different.
     * @return a copy of this <CODE>PdfTemplate</CODE>
     */
    
    public PdfContentByte getDuplicate() {
        PdfTemplate tpl = new PdfTemplate();
        tpl.writer = writer;
        tpl.pdf = pdf;
        tpl.thisReference = thisReference;
        tpl.fontDictionary = fontDictionary;
        tpl.xObjectDictionary = xObjectDictionary;
        tpl.colorDictionary = colorDictionary;
        tpl.patternDictionary = patternDictionary;
        tpl.shadingDictionary = shadingDictionary;
        tpl.bBox = new Rectangle(bBox);
        if (matrix != null) {
            tpl.matrix = new PdfArray(matrix);
        }
        return tpl;
    }
    
    public int getType() {
        return type;
    }
}