pdfview.java

exTreme taglib的使用

/*
 * Copyright 2004 original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.extremecomponents.table.view;

import java.util.Iterator;
import java.util.List;

import org.extremecomponents.table.bean.Column;
import org.extremecomponents.table.bean.Export;
import org.extremecomponents.table.core.BaseModel;

/**
 * @author jeff johnston
 */
public class PdfView implements View {
    private StringBuffer xlsfo = new StringBuffer();

    public final static String HEADER_BACKGROUND_COLOR = "headerBackgroundColor";
    public final static String HEADER_TITLE = "headerTitle";
    public final static String HEADER_COLOR = "headerColor";

    public PdfView() {
    }

    public void beforeBody(BaseModel model) {
        xlsfo.append(startRoot());
        xlsfo.append(regionBefore(model));
        xlsfo.append(regionAfter());
        xlsfo.append(columnDefinitions(model));
        xlsfo.append(header(model));
        xlsfo.append(" <fo:table-body> ");
    }

    public void body(BaseModel model, Column column) {
        if (column.isFirstColumn()) {
            xlsfo.append(" <fo:table-row> ");
        }

        String value = ExportViewUtils.parsePDF(column.getPropertyValueAsString());

        xlsfo.append(" <fo:table-cell border=\"solid silver .5px\" display-align=\"center\" padding=\"3pt\"> ");
        xlsfo.append(" <fo:block>" + value + "</fo:block> ");
        xlsfo.append(" </fo:table-cell> ");

        if (column.isLastColumn()) {
            xlsfo.append(" </fo:table-row> ");
        }
    }

    public Object afterBody(BaseModel model) {
        xlsfo.append(" </fo:table-body> ");
        xlsfo.append(endRoot());
        return xlsfo.toString();
    }

    public String startRoot() {
        StringBuffer sb = new StringBuffer();

        sb.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");

        sb.append("<fo:root xmlns:fo=\"http://www.w3.org/1999/XSL/Format\">");

        sb.append(" <fo:layout-master-set> ");
        sb.append(" <fo:simple-page-master master-name=\"simple\" ");
        sb.append(" page-height=\"8.5in\" ");
        sb.append(" page-width=\"11in\" ");
        sb.append(" margin-top=\".5in\" ");
        sb.append(" margin-bottom=\".25in\" ");
        sb.append(" margin-left=\".5in\" ");
        sb.append(" margin-right=\".5in\"> ");
        sb.append(" <fo:region-body margin-top=\".5in\" margin-bottom=\".25in\"/> ");
        sb.append(" <fo:region-before extent=\".5in\"/> ");
        sb.append(" <fo:region-after extent=\".25in\"/> ");
        sb.append(" </fo:simple-page-master> ");
        sb.append(" </fo:layout-master-set> ");

        sb.append(" <fo:page-sequence master-reference=\"simple\" initial-page-number=\"1\"> ");

        return sb.toString();
    }

    public String regionBefore(BaseModel model) {
        StringBuffer sb = new StringBuffer();

        Export export = model.getExportHandler().getCurrentExport();
        String headerBackgroundColor = export.getAttributeAsString(HEADER_BACKGROUND_COLOR);

        sb.append(" <fo:static-content flow-name=\"xsl-region-before\"> ");

        String title = export.getAttributeAsString(HEADER_TITLE);

        sb.append(" <fo:block space-after.optimum=\"15pt\" color=\"" + headerBackgroundColor
                + "\" font-size=\"17pt\" font-family=\"'Times'\">" + title + "</fo:block> ");

        sb.append(" </fo:static-content> ");

        return sb.toString();
    }

    public String regionAfter() {
        StringBuffer sb = new StringBuffer();

        sb.append(" <fo:static-content flow-name=\"xsl-region-after\" display-align=\"after\"> ");

        sb.append(" <fo:block text-align=\"end\">Page <fo:page-number/></fo:block> ");

        sb.append(" </fo:static-content> ");

        return sb.toString();
    }

    public String columnDefinitions(BaseModel model) {
        StringBuffer sb = new StringBuffer();

        sb.append(" <fo:flow flow-name=\"xsl-region-body\"> ");

        sb.append(" <fo:block> ");

        sb.append(" <fo:table table-layout=\"fixed\" font-size=\"10pt\"> ");

        double columnCount = model.getColumnHandler().columnCount();

        double colwidth = 10 / columnCount;

        for (int i = 1; i <= columnCount; i++) {
            sb.append(" <fo:table-column column-number=\"" + i + "\" column-width=\"" + colwidth + "in\"/> ");
        }

        return sb.toString();
    }

    public String header(BaseModel model) {
        StringBuffer sb = new StringBuffer();

        Export export = model.getExportHandler().getCurrentExport();
        String headerColor = export.getAttributeAsString(HEADER_COLOR);
        String headerBackgroundColor = export.getAttributeAsString(HEADER_BACKGROUND_COLOR);

        sb.append(" <fo:table-header background-color=\"" + headerBackgroundColor + "\" color=\"" + headerColor
                + "\"> ");

        sb.append(" <fo:table-row> ");

        List columns = model.getColumnHandler().getHeaderColumns();
        for (Iterator iter = columns.iterator(); iter.hasNext();) {
            Column column = (Column) iter.next();
            String title = column.getValue().toString();
            sb
                    .append(" <fo:table-cell border=\"solid silver .5px\" text-align=\"center\" display-align=\"center\" padding=\"3pt\"> ");
            sb.append(" <fo:block>" + title + "</fo:block> ");
            sb.append(" </fo:table-cell> ");
        }

        sb.append(" </fo:table-row> ");

        sb.append(" </fo:table-header> ");

        return sb.toString();
    }

    public String endRoot() {
        StringBuffer sb = new StringBuffer();

        sb.append(" </fo:table> ");

        sb.append(" </fo:block> ");

        sb.append(" </fo:flow> ");

        sb.append(" </fo:page-sequence> ");

        sb.append(" </fo:root> ");

        return sb.toString();
    }
}