Wednesday, 12 December 2018 03:22

Create Grid in PDF in Java

Written by  support iceblue
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In this article, you'll learn how to add a grid to PDF and how to format the grid as well, by using Spire.PDF with Java.

import com.spire.pdf.graphics.*;
import com.spire.pdf.grid.PdfGrid;

import java.awt.*;

public class CreateGrid {

    public static void main(String[] args) {

        //create a pdf document
        PdfDocument doc = new PdfDocument();
        PdfPageBase page = doc.getPages().add();

        //create a PdfGrid object
        PdfGrid grid = new PdfGrid();

        //set the cell padding, font, text brush, background brush of the grid
        grid.getStyle().setCellPadding(new PdfPaddings(3,3,3,3));
        grid.getStyle().setFont(new PdfTrueTypeFont(new Font("Arial Unicode MS", Font.PLAIN,10), true));
        grid.getStyle().setTextBrush(PdfBrushes.getBlack());
        grid.getStyle().setBackgroundBrush(PdfBrushes.getLightGray());

        //create a PdfBorders object
        PdfBorders borders= new PdfBorders();
        borders.setAll(new PdfPen(PdfBrushes.getWhite(),1f));

        //define sample data
        String[] data = {"Continent;Country;Population;Ratio to World Pop;Flag",
                "Asia;China;1,391,190,000;18.2%; ",
                "Asia;Japan;126,490,000;1.66%; ",
                "Europe;United Kingdom;65,648,054;0.86%; ",
                "Europe;Germany;82,665,600;1.08%; ",
                "North America; Canada; 37,119,000; 0.49%; ",
                "North America; United States; 327,216,000; 4.29%; "
                };
        String[][] dataSource = new String[data.length][];
        for (int i = 0; i < data.length; i++) {
            dataSource[i] = data[i].split("[;]", -1);
        }

        //fill the grid with data
        grid.setDataSource(dataSource);

        //fill the cells with background images
        grid.getRows().get(1).getCells().get(4).getStyle().setBackgroundImage(PdfImage.fromFile("F:\\Documents\\flags\\flag-of-China.png"));
        grid.getRows().get(2).getCells().get(4).getStyle().setBackgroundImage(PdfImage.fromFile("F:\\Documents\\flags\\flag-of-Japan.png"));
        grid.getRows().get(3).getCells().get(4).getStyle().setBackgroundImage(PdfImage.fromFile("F:\\Documents\\flags\\flag-of-United-Kingdom.png"));
        grid.getRows().get(4).getCells().get(4).getStyle().setBackgroundImage(PdfImage.fromFile("F:\\Documents\\flags\\flag-of-Germany.png"));
        grid.getRows().get(5).getCells().get(4).getStyle().setBackgroundImage(PdfImage.fromFile("F:\\Documents\\flags\\flag-of-Canada.png"));
        grid.getRows().get(6).getCells().get(4).getStyle().setBackgroundImage(PdfImage.fromFile("F:\\Documents\\flags\\flag-of-United-States-of-America.png"));

        //set the width of the last column
        grid.getColumns().get(grid.getColumns().getCount()-1).setWidth(60f);

        //vertically span cells
        grid.getRows().get(1).getCells().get(0).setRowSpan(2);
        grid.getRows().get(3).getCells().get(0).setRowSpan(2);
        grid.getRows().get(5).getCells().get(0).setRowSpan(2);

        for (int i = 0; i < data.length ; i++) {

            //set the height of each row
            grid.getRows().get(i).setHeight(30f);
            //set the background color of the first column
            grid.getRows().get(i).getCells().get(0).getStyle().setBackgroundBrush(PdfBrushes.getDarkGray());
            //set the font of the first column
            grid.getRows().get(i).getCells().get(0).getStyle().setFont(new PdfTrueTypeFont(new Font("Arial",Font.PLAIN,12),true));

            for (int j = 0; j < grid.getColumns().getCount(); j++) {

                //apply border style to all cells
                grid.getRows().get(i).getCells().get(j).getStyle().setBorders(borders);
                //apply text alignment to all cells
                grid.getRows().get(i).getCells().get(j).setStringFormat(new PdfStringFormat(PdfTextAlignment.Center,PdfVerticalAlignment.Middle));
                //set the font of the first row
                grid.getRows().get(0).getCells().get(j).getStyle().setFont(new PdfTrueTypeFont(new Font("Arial",Font.PLAIN,12),true));
                //set the background color of the first row
                grid.getRows().get(0).getCells().get(j).getStyle().setBackgroundBrush(PdfBrushes.getDarkGray());

            }
        }

        //draw grid on the pdf page
        grid.draw(page,0,30);

        //save to file
        doc.saveToFile("Grid.pdf");
        doc.close();
    }
}

Create Grid in PDF in Java

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