353 lines
13 KiB
C#
353 lines
13 KiB
C#
using System;
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using System.Drawing;
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using System.Collections;
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using iTextSharp.text;
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/*
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* Copyright 2002 by Paulo Soares.
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* (the "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the License.
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*
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* The Original Code is 'iText, a free JAVA-PDF library'.
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*
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* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
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* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
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* All Rights Reserved.
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* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
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* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
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*
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* Contributor(s): all the names of the contributors are added in the source code
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* where applicable.
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*
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* Alternatively, the contents of this file may be used under the terms of the
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* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
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* provisions of LGPL are applicable instead of those above. If you wish to
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* allow use of your version of this file only under the terms of the LGPL
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* License and not to allow others to use your version of this file under
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* the MPL, indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by the LGPL.
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* If you do not delete the provisions above, a recipient may use your version
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* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the MPL as stated above or under the terms of the GNU
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* Library General Public License as published by the Free Software Foundation;
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* either version 2 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
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* details.
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*
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* If you didn't download this code from the following link, you should check if
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* you aren't using an obsolete version:
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* http://www.lowagie.com/iText/
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*/
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namespace iTextSharp.text.pdf {
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/** Implements form fields.
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*
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* @author Paulo Soares (psoares@consiste.pt)
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*/
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public class PdfFormField : PdfAnnotation {
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public const int FF_READ_ONLY = 1;
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public const int FF_REQUIRED = 2;
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public const int FF_NO_EXPORT = 4;
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public const int FF_NO_TOGGLE_TO_OFF = 16384;
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public const int FF_RADIO = 32768;
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public const int FF_PUSHBUTTON = 65536;
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public const int FF_MULTILINE = 4096;
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public const int FF_PASSWORD = 8192;
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public const int FF_COMBO = 131072;
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public const int FF_EDIT = 262144;
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public const int FF_FILESELECT = 1048576;
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public const int FF_MULTISELECT = 2097152;
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public const int FF_DONOTSPELLCHECK = 4194304;
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public const int FF_DONOTSCROLL = 8388608;
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public const int FF_COMB = 16777216;
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public const int FF_RADIOSINUNISON = 1 << 25;
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public const int Q_LEFT = 0;
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public const int Q_CENTER = 1;
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public const int Q_RIGHT = 2;
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public const int MK_NO_ICON = 0;
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public const int MK_NO_CAPTION = 1;
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public const int MK_CAPTION_BELOW = 2;
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public const int MK_CAPTION_ABOVE = 3;
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public const int MK_CAPTION_RIGHT = 4;
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public const int MK_CAPTION_LEFT = 5;
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public const int MK_CAPTION_OVERLAID = 6;
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public static readonly PdfName IF_SCALE_ALWAYS = PdfName.A;
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public static readonly PdfName IF_SCALE_BIGGER = PdfName.B;
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public static readonly PdfName IF_SCALE_SMALLER = PdfName.S;
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public static readonly PdfName IF_SCALE_NEVER = PdfName.N;
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public static readonly PdfName IF_SCALE_ANAMORPHIC = PdfName.A;
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public static readonly PdfName IF_SCALE_PROPORTIONAL = PdfName.P;
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public const bool MULTILINE = true;
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public const bool SINGLELINE = false;
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public const bool PLAINTEXT = false;
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public const bool PASSWORD = true;
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public static PdfName[] mergeTarget = {PdfName.FONT, PdfName.XOBJECT, PdfName.COLORSPACE, PdfName.PATTERN};
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/** Holds value of property parent. */
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internal PdfFormField parent;
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internal ArrayList kids;
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/**
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* Constructs a new <CODE>PdfAnnotation</CODE> of subtype link (Action).
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*/
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public PdfFormField(PdfWriter writer, float llx, float lly, float urx, float ury, PdfAction action) : base(writer, llx, lly, urx, ury, action) {
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Put(PdfName.TYPE, PdfName.ANNOT);
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Put(PdfName.SUBTYPE, PdfName.WIDGET);
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annotation = true;
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}
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/** Creates new PdfFormField */
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internal PdfFormField(PdfWriter writer) : base(writer, null) {
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form = true;
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annotation = false;
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}
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public void SetWidget(Rectangle rect, PdfName highlight) {
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Put(PdfName.TYPE, PdfName.ANNOT);
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Put(PdfName.SUBTYPE, PdfName.WIDGET);
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Put(PdfName.RECT, new PdfRectangle(rect));
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annotation = true;
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if (highlight != null && !highlight.Equals(HIGHLIGHT_INVERT))
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Put(PdfName.H, highlight);
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}
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public static PdfFormField CreateEmpty(PdfWriter writer) {
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PdfFormField field = new PdfFormField(writer);
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return field;
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}
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public int Button {
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set {
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Put(PdfName.FT, PdfName.BTN);
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if (value != 0)
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Put(PdfName.FF, new PdfNumber(value));
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}
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}
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protected static PdfFormField CreateButton(PdfWriter writer, int flags) {
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PdfFormField field = new PdfFormField(writer);
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field.Button = flags;
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return field;
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}
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public static PdfFormField CreatePushButton(PdfWriter writer) {
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return CreateButton(writer, FF_PUSHBUTTON);
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}
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public static PdfFormField CreateCheckBox(PdfWriter writer) {
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return CreateButton(writer, 0);
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}
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public static PdfFormField CreateRadioButton(PdfWriter writer, bool noToggleToOff) {
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return CreateButton(writer, FF_RADIO + (noToggleToOff ? FF_NO_TOGGLE_TO_OFF : 0));
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}
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public static PdfFormField CreateTextField(PdfWriter writer, bool multiline, bool password, int maxLen) {
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PdfFormField field = new PdfFormField(writer);
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field.Put(PdfName.FT, PdfName.TX);
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int flags = (multiline ? FF_MULTILINE : 0);
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flags += (password ? FF_PASSWORD : 0);
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field.Put(PdfName.FF, new PdfNumber(flags));
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if (maxLen > 0)
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field.Put(PdfName.MAXLEN, new PdfNumber(maxLen));
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return field;
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}
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protected static PdfFormField CreateChoice(PdfWriter writer, int flags, PdfArray options, int topIndex) {
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PdfFormField field = new PdfFormField(writer);
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field.Put(PdfName.FT, PdfName.CH);
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field.Put(PdfName.FF, new PdfNumber(flags));
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field.Put(PdfName.OPT, options);
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if (topIndex > 0)
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field.Put(PdfName.TI, new PdfNumber(topIndex));
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return field;
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}
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public static PdfFormField CreateList(PdfWriter writer, String[] options, int topIndex) {
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return CreateChoice(writer, 0, ProcessOptions(options), topIndex);
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}
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public static PdfFormField CreateList(PdfWriter writer, String[,] options, int topIndex) {
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return CreateChoice(writer, 0, ProcessOptions(options), topIndex);
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}
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public static PdfFormField CreateCombo(PdfWriter writer, bool edit, String[] options, int topIndex) {
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return CreateChoice(writer, FF_COMBO + (edit ? FF_EDIT : 0), ProcessOptions(options), topIndex);
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}
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public static PdfFormField CreateCombo(PdfWriter writer, bool edit, String[,] options, int topIndex) {
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return CreateChoice(writer, FF_COMBO + (edit ? FF_EDIT : 0), ProcessOptions(options), topIndex);
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}
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protected static PdfArray ProcessOptions(String[] options) {
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PdfArray array = new PdfArray();
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for (int k = 0; k < options.Length; ++k) {
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array.Add(new PdfString(options[k], PdfObject.TEXT_UNICODE));
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}
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return array;
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}
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protected static PdfArray ProcessOptions(String[,] options) {
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PdfArray array = new PdfArray();
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for (int k = 0; k < options.GetLength(0); ++k) {
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PdfArray ar2 = new PdfArray(new PdfString(options[k, 0], PdfObject.TEXT_UNICODE));
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ar2.Add(new PdfString(options[k, 1], PdfObject.TEXT_UNICODE));
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array.Add(ar2);
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}
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return array;
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}
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public static PdfFormField CreateSignature(PdfWriter writer) {
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PdfFormField field = new PdfFormField(writer);
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field.Put(PdfName.FT, PdfName.SIG);
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return field;
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}
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/** Getter for property parent.
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* @return Value of property parent.
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*/
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public PdfFormField Parent {
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get {
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return parent;
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}
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}
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public void AddKid(PdfFormField field) {
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field.parent = this;
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if (kids == null)
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kids = new ArrayList();
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kids.Add(field);
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}
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public ArrayList Kids {
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get {
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return kids;
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}
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}
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public int SetFieldFlags(int flags) {
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PdfNumber obj = (PdfNumber)Get(PdfName.FF);
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int old;
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if (obj == null)
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old = 0;
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else
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old = obj.IntValue;
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int v = old | flags;
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Put(PdfName.FF, new PdfNumber(v));
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return old;
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}
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public string ValueAsString {
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set {
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Put(PdfName.V, new PdfString(value, PdfObject.TEXT_UNICODE));
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}
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}
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public string ValueAsName {
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set {
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Put(PdfName.V, new PdfName(value));
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}
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}
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public PdfSignature ValueAsSig {
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set {
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Put(PdfName.V, value);
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}
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}
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public string DefaultValueAsString {
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set {
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Put(PdfName.DV, new PdfString(value, PdfObject.TEXT_UNICODE));
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}
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}
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public string DefaultValueAsName {
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set {
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Put(PdfName.DV, new PdfName(value));
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}
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}
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public string FieldName {
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set {
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if (value != null)
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Put(PdfName.T, new PdfString(value, PdfObject.TEXT_UNICODE));
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}
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}
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public string UserName {
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set {
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Put(PdfName.TU, new PdfString(value, PdfObject.TEXT_UNICODE));
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}
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}
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public string MappingName {
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set {
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Put(PdfName.TM, new PdfString(value, PdfObject.TEXT_UNICODE));
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}
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}
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public int Quadding {
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set {
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Put(PdfName.Q, new PdfNumber(value));
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}
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}
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internal static void MergeResources(PdfDictionary result, PdfDictionary source, PdfStamperImp writer) {
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PdfDictionary dic = null;
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PdfDictionary res = null;
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PdfName target = null;
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for (int k = 0; k < mergeTarget.Length; ++k) {
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target = mergeTarget[k];
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PdfDictionary pdfDict = (PdfDictionary)PdfReader.GetPdfObject(source.Get(target));
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if ((dic = pdfDict) != null) {
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if ((res = (PdfDictionary)PdfReader.GetPdfObject(result.Get(target), result)) == null) {
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res = new PdfDictionary();
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}
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res.MergeDifferent(dic);
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result.Put(target, res);
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if (writer != null)
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writer.MarkUsed(res);
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}
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}
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}
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internal static void MergeResources(PdfDictionary result, PdfDictionary source) {
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MergeResources(result, source, null);
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}
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public override void SetUsed() {
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used = true;
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if (parent != null)
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Put(PdfName.PARENT, parent.IndirectReference);
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if (kids != null) {
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PdfArray array = new PdfArray();
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for (int k = 0; k < kids.Count; ++k)
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array.Add(((PdfFormField)kids[k]).IndirectReference);
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Put(PdfName.KIDS, array);
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}
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if (templates == null)
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return;
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PdfDictionary dic = new PdfDictionary();
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foreach (PdfTemplate template in templates.Keys) {
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MergeResources(dic, (PdfDictionary)template.Resources);
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}
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Put(PdfName.DR, dic);
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}
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}
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} |