Example usage for com.itextpdf.text.pdf BaseFont charExists

Introduction

In this page you can find the example usage for com.itextpdf.text.pdf BaseFont charExists.

Prototype

public boolean charExists(int c) 

Source Link

Document

Checks if a character exists in this font.

Usage

From source file:org.javad.pdf.util.PdfUtil.java

License:Apache License

protected static void improveRenderText(PdfContentByte content, String str, Font f, float x, float y) {

    BaseFont bf = f.getCalculatedBaseFont(false);
    if (i18Font == null && (System.currentTimeMillis() - LAST_CHECK_TIME > 10000)) {
        i18Font = FontRegistry.getInstance().getFont(PdfFontDefinition.ExtendedCharacters)
                .getCalculatedBaseFont(false);
        LAST_CHECK_TIME = System.currentTimeMillis();
    }//from www  .ja v a  2 s. c o  m
    StringBuilder buf = new StringBuilder(str.length());
    boolean extendedCodePoint = false;
    float effWidth = 0.0f;
    for (int i = 0; i < str.length(); i++) {
        char c = str.charAt(i);
        int codePoint = Character.codePointAt("" + c, 0);
        boolean curCodePoint = (!bf.charExists(codePoint)) ? true : false;
        if (curCodePoint != extendedCodePoint) {
            content.setFontAndSize((extendedCodePoint) ? i18Font : bf, f.getSize());
            effWidth += content.getEffectiveStringWidth(buf.toString(), false);
            buf = new StringBuilder();
            extendedCodePoint = curCodePoint;
        }
        buf.append(c);
    }
    content.setFontAndSize(bf, f.getSize());
    effWidth += content.getEffectiveStringWidth(buf.toString(), false);
    float x_pos = x - (effWidth / 2.0f); // eq. to showTextAligned

    content.beginText();
    content.setTextMatrix(x_pos, y);
    BaseFont lastFont = bf;
    @SuppressWarnings("UnusedAssignment")
    BaseFont currentFont = lastFont;
    buf = new StringBuilder();
    for (int i = 0; i < str.length(); i++) {
        char c = str.charAt(i);
        int codePoint = Character.codePointAt("" + c, 0);
        if (!bf.charExists(codePoint)) {
            currentFont = i18Font;
        } else {
            currentFont = bf;
        }
        if (currentFont != lastFont) {
            content.showText(buf.toString());
            buf = new StringBuilder();
            content.setFontAndSize(currentFont, f.getSize());
            lastFont = currentFont;
        }
        buf.append(c);
    }
    if (buf.length() > 0) {
        content.showText(buf.toString());
    }
    content.endText();

}

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