/*
* {{{ header & license
* Copyright (c) 2007 Wisconsin Court System
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* }}}
*/
package org.xhtmlrenderer.pdf;
import org.w3c.dom.Element;
import org.xhtmlrenderer.css.parser.FSColor;
import org.xhtmlrenderer.layout.LayoutContext;
import org.xhtmlrenderer.render.BlockBox;
import org.xhtmlrenderer.render.RenderingContext;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.PdfAnnotation;
import com.lowagie.text.pdf.PdfAppearance;
import com.lowagie.text.pdf.PdfBorderDictionary;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfFormField;
import com.lowagie.text.pdf.PdfWriter;
public class TextFormField extends AbstractFormField {
private static final String FIELD_TYPE = "Text";
private static final int DEFAULT_SIZE = 15;
private int _baseline;
public TextFormField(LayoutContext c, BlockBox box, int cssWidth, int cssHeight) {
initDimensions(c, box, cssWidth, cssHeight);
float fontSize = box.getStyle().getFSFont(c).getSize2D();
_baseline = (int)(getHeight() / 2 + (fontSize * 0.3f));
}
protected void initDimensions(LayoutContext c, BlockBox box, int cssWidth, int cssHeight) {
if (cssWidth != -1) {
setWidth(cssWidth);
} else {
setWidth(c.getTextRenderer().getWidth(
c.getFontContext(),
box.getStyle().getFSFont(c),
spaces(getSize(box.getElement()))));
}
if (cssHeight != -1) {
setHeight(cssHeight);
} else {
setHeight((int) (box.getStyle().getLineHeight(c)));
}
}
protected String getFieldType() {
return FIELD_TYPE;
}
public void paint(RenderingContext c, ITextOutputDevice outputDevice, BlockBox box) {
PdfWriter writer = outputDevice.getWriter();
Element elem = box.getElement();
PdfFormField field = PdfFormField.createTextField(
writer, false, false, getMaxLength(elem));
Rectangle targetArea = outputDevice.createLocalTargetArea(c, box);
field.setWidget(
targetArea,
PdfAnnotation.HIGHLIGHT_INVERT);
field.setFieldName(getFieldName(outputDevice, elem));
field.setBorderStyle(new PdfBorderDictionary(0.0f, 0));
String value = getValue(elem);
field.setDefaultValueAsString(value);
field.setValueAsString(value);
createAppearance(c, outputDevice, box, field, value);
if (isReadOnly(elem)) {
field.setFieldFlags(PdfFormField.FF_READ_ONLY);
}
writer.addAnnotation(field);
}
private void createAppearance(
RenderingContext c, ITextOutputDevice outputDevice,
BlockBox box, PdfFormField field,
String value) {
PdfWriter writer = outputDevice.getWriter();
ITextFSFont font = (ITextFSFont)box.getStyle().getFSFont(c);
PdfContentByte cb = writer.getDirectContent();
float width = outputDevice.getDeviceLength(getWidth());
float height = outputDevice.getDeviceLength(getHeight());
float fontSize = outputDevice.getDeviceLength(font.getSize2D());
PdfAppearance tp = cb.createAppearance(width, height);
PdfAppearance tp2 = (PdfAppearance)tp.getDuplicate();
tp2.setFontAndSize(font.getFontDescription().getFont(), fontSize);
FSColor color = box.getStyle().getColor();
setFillColor(tp2, color);
field.setDefaultAppearanceString(tp2);
tp.beginVariableText();
tp.saveState();
tp.beginText();
tp.setFontAndSize(font.getFontDescription().getFont(), fontSize);
setFillColor(tp, color);
tp.setTextMatrix(0, height / 2 - (fontSize * 0.3f));
tp.showText(value);
tp.endText();
tp.restoreState();
tp.endVariableText();
field.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, tp);
}
private int getSize(Element elem) {
String sSize = elem.getAttribute("size");
if (sSize.equals("")) {
return DEFAULT_SIZE;
} else {
try {
return Integer.parseInt(sSize.trim());
} catch (NumberFormatException e) {
return DEFAULT_SIZE;
}
}
}
private int getMaxLength(Element elem) {
String sMaxLen = elem.getAttribute("maxlength");
if (sMaxLen.equals("")) {
return 0;
} else {
try {
return Integer.parseInt(sMaxLen.trim());
} catch (NumberFormatException e) {
return 0;
}
}
}
protected String getValue(Element e) {
String result = e.getAttribute("value");
if (result.trim().equals("")) {
return "";
} else {
return result;
}
}
public int getBaseline() {
return _baseline;
}
public boolean hasBaseline() {
return true;
}
}