Initial Commit
This commit is contained in:
630
iTechSharp/iTextSharp/text/pdf/BaseField.cs
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630
iTechSharp/iTextSharp/text/pdf/BaseField.cs
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using System;
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using System.Collections;
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using System.Text;
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/*
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* Copyright 2005 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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{
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public abstract class BaseField {
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/** A thin border with 1 point width. */
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public const float BORDER_WIDTH_THIN = 1;
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/** A medium border with 2 point width. */
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public const float BORDER_WIDTH_MEDIUM = 2;
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/** A thick border with 3 point width. */
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public const float BORDER_WIDTH_THICK = 3;
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/** The field is visible. */
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public const int VISIBLE = 0;
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/** The field is hidden. */
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public const int HIDDEN = 1;
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/** The field is visible but does not print. */
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public const int VISIBLE_BUT_DOES_NOT_PRINT = 2;
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/** The field is hidden but is printable. */
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public const int HIDDEN_BUT_PRINTABLE = 3;
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/** The user may not change the value of the field. */
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public const int READ_ONLY = PdfFormField.FF_READ_ONLY;
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/** The field must have a value at the time it is exported by a submit-form
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* action.
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*/
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public const int REQUIRED = PdfFormField.FF_REQUIRED;
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/** The field may contain multiple lines of text.
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* This flag is only meaningful with text fields.
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*/
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public const int MULTILINE = PdfFormField.FF_MULTILINE;
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/** The field will not scroll (horizontally for single-line
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* fields, vertically for multiple-line fields) to accommodate more text
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* than will fit within its annotation rectangle. Once the field is full, no
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* further text will be accepted.
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*/
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public const int DO_NOT_SCROLL = PdfFormField.FF_DONOTSCROLL;
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/** The field is intended for entering a secure password that should
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* not be echoed visibly to the screen.
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*/
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public const int PASSWORD = PdfFormField.FF_PASSWORD;
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/** The text entered in the field represents the pathname of
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* a file whose contents are to be submitted as the value of the field.
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*/
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public const int FILE_SELECTION = PdfFormField.FF_FILESELECT;
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/** The text entered in the field will not be spell-checked.
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* This flag is meaningful only in text fields and in combo
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* fields with the <CODE>EDIT</CODE> flag set.
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*/
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public const int DO_NOT_SPELL_CHECK = PdfFormField.FF_DONOTSPELLCHECK;
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/** If set the combo box includes an editable text box as well as a drop list; if
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* clear, it includes only a drop list.
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* This flag is only meaningful with combo fields.
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*/
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public const int EDIT = PdfFormField.FF_EDIT;
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/**
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* combo box flag.
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*/
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public const int COMB = PdfFormField.FF_COMB;
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protected float borderWidth = BORDER_WIDTH_THIN;
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protected int borderStyle = PdfBorderDictionary.STYLE_SOLID;
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protected Color borderColor;
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protected Color backgroundColor;
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protected Color textColor;
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protected BaseFont font;
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protected float fontSize = 0;
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protected int alignment = Element.ALIGN_LEFT;
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protected PdfWriter writer;
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protected String text;
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protected Rectangle box;
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/** Holds value of property rotation. */
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protected int rotation = 0;
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/** Holds value of property visibility. */
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protected int visibility;
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/** Holds value of property fieldName. */
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protected String fieldName;
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/** Holds value of property options. */
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protected int options;
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/** Holds value of property maxCharacterLength. */
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protected int maxCharacterLength;
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private static Hashtable fieldKeys = new Hashtable();
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static BaseField() {
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foreach (DictionaryEntry entry in PdfCopyFieldsImp.fieldKeys)
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fieldKeys[entry.Key] = entry.Value;
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fieldKeys[PdfName.T] = 1;
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}
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/** Creates a new <CODE>TextField</CODE>.
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* @param writer the document <CODE>PdfWriter</CODE>
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* @param box the field location and dimensions
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* @param fieldName the field name. If <CODE>null</CODE> only the widget keys
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* will be included in the field allowing it to be used as a kid field.
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*/
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public BaseField(PdfWriter writer, Rectangle box, String fieldName) {
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this.writer = writer;
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Box = box;
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this.fieldName = fieldName;
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}
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protected BaseFont RealFont {
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get {
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if (font == null)
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return BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.WINANSI, false);
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else
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return font;
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}
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}
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protected PdfAppearance GetBorderAppearance() {
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PdfAppearance app = PdfAppearance.CreateAppearance(writer, box.Width, box.Height);
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switch (rotation) {
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case 90:
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app.SetMatrix(0, 1, -1, 0, box.Height, 0);
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break;
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case 180:
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app.SetMatrix(-1, 0, 0, -1, box.Width, box.Height);
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break;
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case 270:
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app.SetMatrix(0, -1, 1, 0, 0, box.Width);
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break;
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}
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app.SaveState();
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// background
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if (backgroundColor != null) {
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app.SetColorFill(backgroundColor);
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app.Rectangle(0, 0, box.Width, box.Height);
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app.Fill();
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}
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// border
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if (borderStyle == PdfBorderDictionary.STYLE_UNDERLINE) {
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if (borderWidth != 0 && borderColor != null) {
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app.SetColorStroke(borderColor);
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app.SetLineWidth(borderWidth);
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app.MoveTo(0, borderWidth / 2);
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app.LineTo(box.Width, borderWidth / 2);
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app.Stroke();
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}
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}
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else if (borderStyle == PdfBorderDictionary.STYLE_BEVELED) {
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if (borderWidth != 0 && borderColor != null) {
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app.SetColorStroke(borderColor);
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app.SetLineWidth(borderWidth);
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app.Rectangle(borderWidth / 2, borderWidth / 2, box.Width - borderWidth, box.Height - borderWidth);
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app.Stroke();
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}
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// beveled
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Color actual = backgroundColor;
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if (actual == null)
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actual = Color.WHITE;
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app.SetGrayFill(1);
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DrawTopFrame(app);
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app.SetColorFill(actual.Darker());
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DrawBottomFrame(app);
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}
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else if (borderStyle == PdfBorderDictionary.STYLE_INSET) {
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if (borderWidth != 0 && borderColor != null) {
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app.SetColorStroke(borderColor);
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app.SetLineWidth(borderWidth);
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app.Rectangle(borderWidth / 2, borderWidth / 2, box.Width - borderWidth, box.Height - borderWidth);
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app.Stroke();
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}
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// inset
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app.SetGrayFill(0.5f);
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DrawTopFrame(app);
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app.SetGrayFill(0.75f);
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DrawBottomFrame(app);
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}
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else {
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if (borderWidth != 0 && borderColor != null) {
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if (borderStyle == PdfBorderDictionary.STYLE_DASHED)
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app.SetLineDash(3, 0);
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app.SetColorStroke(borderColor);
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app.SetLineWidth(borderWidth);
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app.Rectangle(borderWidth / 2, borderWidth / 2, box.Width - borderWidth, box.Height - borderWidth);
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app.Stroke();
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if ((options & COMB) != 0 && maxCharacterLength > 1) {
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float step = box.Width / maxCharacterLength;
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float yb = borderWidth / 2;
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float yt = box.Height - borderWidth / 2;
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for (int k = 1; k < maxCharacterLength; ++k) {
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float x = step * k;
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app.MoveTo(x, yb);
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app.LineTo(x, yt);
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}
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app.Stroke();
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}
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}
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}
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app.RestoreState();
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return app;
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}
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protected static ArrayList GetHardBreaks(String text) {
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ArrayList arr = new ArrayList();
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char[] cs = text.ToCharArray();
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int len = cs.Length;
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StringBuilder buf = new StringBuilder();
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for (int k = 0; k < len; ++k) {
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char c = cs[k];
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if (c == '\r') {
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if (k + 1 < len && cs[k + 1] == '\n')
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++k;
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arr.Add(buf.ToString());
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buf = new StringBuilder();
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}
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else if (c == '\n') {
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arr.Add(buf.ToString());
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buf = new StringBuilder();
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}
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else
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buf.Append(c);
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}
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arr.Add(buf.ToString());
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return arr;
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}
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protected static void TrimRight(StringBuilder buf) {
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int len = buf.Length;
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while (true) {
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if (len == 0)
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return;
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if (buf[--len] != ' ')
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return;
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buf.Length = len;
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}
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}
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protected static ArrayList BreakLines(ArrayList breaks, BaseFont font, float fontSize, float width) {
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ArrayList lines = new ArrayList();
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StringBuilder buf = new StringBuilder();
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for (int ck = 0; ck < breaks.Count; ++ck) {
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buf.Length = 0;
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float w = 0;
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char[] cs = ((String)breaks[ck]).ToCharArray();
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int len = cs.Length;
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// 0 inline first, 1 inline, 2 spaces
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int state = 0;
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int lastspace = -1;
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char c = (char)0;
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int refk = 0;
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for (int k = 0; k < len; ++k) {
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c = cs[k];
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switch (state) {
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case 0:
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w += font.GetWidthPoint(c, fontSize);
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buf.Append(c);
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if (w > width) {
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w = 0;
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if (buf.Length > 1) {
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--k;
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buf.Length = buf.Length - 1;
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}
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lines.Add(buf.ToString());
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buf.Length = 0;
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refk = k;
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if (c == ' ')
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state = 2;
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else
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state = 1;
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}
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else {
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if (c != ' ')
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state = 1;
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}
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break;
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case 1:
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w += font.GetWidthPoint(c, fontSize);
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buf.Append(c);
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if (c == ' ')
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lastspace = k;
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if (w > width) {
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w = 0;
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if (lastspace >= 0) {
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k = lastspace;
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buf.Length = lastspace - refk;
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TrimRight(buf);
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lines.Add(buf.ToString());
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buf.Length = 0;
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refk = k;
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lastspace = -1;
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state = 2;
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}
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else {
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if (buf.Length > 1) {
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--k;
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buf.Length = buf.Length - 1;
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}
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lines.Add(buf.ToString());
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buf.Length = 0;
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refk = k;
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if (c == ' ')
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state = 2;
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}
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}
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break;
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case 2:
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if (c != ' ') {
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w = 0;
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--k;
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state = 1;
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}
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break;
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}
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}
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TrimRight(buf);
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lines.Add(buf.ToString());
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}
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return lines;
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}
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private void DrawTopFrame(PdfAppearance app) {
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app.MoveTo(borderWidth, borderWidth);
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app.LineTo(borderWidth, box.Height - borderWidth);
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app.LineTo(box.Width - borderWidth, box.Height - borderWidth);
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app.LineTo(box.Width - 2 * borderWidth, box.Height - 2 * borderWidth);
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app.LineTo(2 * borderWidth, box.Height - 2 * borderWidth);
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app.LineTo(2 * borderWidth, 2 * borderWidth);
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app.LineTo(borderWidth, borderWidth);
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app.Fill();
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}
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private void DrawBottomFrame(PdfAppearance app) {
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app.MoveTo(borderWidth, borderWidth);
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app.LineTo(box.Width - borderWidth, borderWidth);
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app.LineTo(box.Width - borderWidth, box.Height - borderWidth);
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app.LineTo(box.Width - 2 * borderWidth, box.Height - 2 * borderWidth);
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app.LineTo(box.Width - 2 * borderWidth, 2 * borderWidth);
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app.LineTo(2 * borderWidth, 2 * borderWidth);
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app.LineTo(borderWidth, borderWidth);
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app.Fill();
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}
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/** Sets the border width in points. To eliminate the border
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* set the border color to <CODE>null</CODE>.
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* @param borderWidth the border width in points
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*/
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public float BorderWidth {
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set {
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this.borderWidth = value;
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}
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get {
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return borderWidth;
|
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}
|
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}
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|
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/** Sets the border style. The styles are found in <CODE>PdfBorderDictionary</CODE>
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* and can be <CODE>STYLE_SOLID</CODE>, <CODE>STYLE_DASHED</CODE>,
|
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* <CODE>STYLE_BEVELED</CODE>, <CODE>STYLE_INSET</CODE> and
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* <CODE>STYLE_UNDERLINE</CODE>.
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* @param borderStyle the border style
|
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*/
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public int BorderStyle {
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set {
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this.borderStyle = value;
|
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}
|
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get {
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return borderStyle;
|
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}
|
||||
}
|
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|
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/** Sets the border color. Set to <CODE>null</CODE> to remove
|
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* the border.
|
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* @param borderColor the border color
|
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*/
|
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public Color BorderColor {
|
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set {
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this.borderColor = value;
|
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}
|
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get {
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return borderColor;
|
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}
|
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}
|
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|
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/** Sets the background color. Set to <CODE>null</CODE> for
|
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* transparent background.
|
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* @param backgroundColor the background color
|
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*/
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public Color BackgroundColor {
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set {
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this.backgroundColor = value;
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}
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get {
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return backgroundColor;
|
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}
|
||||
}
|
||||
|
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/** Sets the text color. If <CODE>null</CODE> the color used
|
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* will be black.
|
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* @param textColor the text color
|
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*/
|
||||
public Color TextColor {
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set {
|
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this.textColor = value;
|
||||
}
|
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get {
|
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return textColor;
|
||||
}
|
||||
}
|
||||
|
||||
/** Sets the text font. If <CODE>null</CODE> then Helvetica
|
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* will be used.
|
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* @param font the text font
|
||||
*/
|
||||
public BaseFont Font {
|
||||
set {
|
||||
this.font = value;
|
||||
}
|
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get {
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return font;
|
||||
}
|
||||
}
|
||||
|
||||
/** Sets the font size. If 0 then auto-sizing will be used but
|
||||
* only for text fields.
|
||||
* @param fontSize the font size
|
||||
*/
|
||||
public float FontSize {
|
||||
set {
|
||||
this.fontSize = value;
|
||||
}
|
||||
get {
|
||||
return fontSize;
|
||||
}
|
||||
}
|
||||
|
||||
/** Sets the text horizontal alignment. It can be <CODE>Element.ALIGN_LEFT</CODE>,
|
||||
* <CODE>Element.ALIGN_CENTER</CODE> and <CODE>Element.ALIGN_RIGHT</CODE>.
|
||||
* @param alignment the text horizontal alignment
|
||||
*/
|
||||
public int Alignment {
|
||||
set {
|
||||
this.alignment = value;
|
||||
}
|
||||
get {
|
||||
return alignment;
|
||||
}
|
||||
}
|
||||
|
||||
/** Sets the text for text fields.
|
||||
* @param text the text
|
||||
*/
|
||||
public string Text {
|
||||
set {
|
||||
this.text = value;
|
||||
}
|
||||
get {
|
||||
return text;
|
||||
}
|
||||
}
|
||||
|
||||
/** Sets the field dimension and position.
|
||||
* @param box the field dimension and position
|
||||
*/
|
||||
public Rectangle Box {
|
||||
set {
|
||||
if (value == null)
|
||||
box = null;
|
||||
else {
|
||||
box = new Rectangle(value);
|
||||
box.Normalize();
|
||||
}
|
||||
}
|
||||
get {
|
||||
return box;
|
||||
}
|
||||
}
|
||||
|
||||
/** Sets the field rotation. This value should be the same as
|
||||
* the page rotation where the field will be shown.
|
||||
* @param rotation the field rotation
|
||||
*/
|
||||
public int Rotation {
|
||||
set {
|
||||
if (value % 90 != 0)
|
||||
throw new ArgumentException("Rotation must be a multiple of 90.");
|
||||
rotation = (value % 360);
|
||||
if (rotation < 0)
|
||||
rotation += 360;
|
||||
}
|
||||
get {
|
||||
return rotation;
|
||||
}
|
||||
}
|
||||
|
||||
/** Convenience method to set the field rotation the same as the
|
||||
* page rotation.
|
||||
* @param page the page
|
||||
*/
|
||||
public void SetRotationFromPage(Rectangle page) {
|
||||
Rotation = page.Rotation;
|
||||
}
|
||||
|
||||
/** Sets the field visibility flag. This flags can be one of
|
||||
* <CODE>VISIBLE</CODE>, <CODE>HIDDEN</CODE>, <CODE>VISIBLE_BUT_DOES_NOT_PRINT</CODE>
|
||||
* and <CODE>HIDDEN_BUT_PRINTABLE</CODE>.
|
||||
* @param visibility field visibility flag
|
||||
*/
|
||||
public int Visibility {
|
||||
set {
|
||||
this.visibility = value;
|
||||
}
|
||||
get {
|
||||
return visibility;
|
||||
}
|
||||
}
|
||||
|
||||
/** Sets the field name.
|
||||
* @param fieldName the field name. If <CODE>null</CODE> only the widget keys
|
||||
* will be included in the field allowing it to be used as a kid field.
|
||||
*/
|
||||
public string FieldName {
|
||||
set {
|
||||
this.fieldName = value;
|
||||
}
|
||||
get {
|
||||
return fieldName;
|
||||
}
|
||||
}
|
||||
|
||||
/** Sets the option flags. The option flags can be a combination by oring of
|
||||
* <CODE>READ_ONLY</CODE>, <CODE>REQUIRED</CODE>,
|
||||
* <CODE>MULTILINE</CODE>, <CODE>DO_NOT_SCROLL</CODE>,
|
||||
* <CODE>PASSWORD</CODE>, <CODE>FILE_SELECTION</CODE>,
|
||||
* <CODE>DO_NOT_SPELL_CHECK</CODE> and <CODE>EDIT</CODE>.
|
||||
* @param options the option flags
|
||||
*/
|
||||
public int Options {
|
||||
set {
|
||||
this.options = value;
|
||||
}
|
||||
get {
|
||||
return options;
|
||||
}
|
||||
}
|
||||
|
||||
/** Sets the maximum length of the field<6C>s text, in characters.
|
||||
* It is only meaningful for text fields.
|
||||
* @param maxCharacterLength the maximum length of the field<6C>s text, in characters
|
||||
*/
|
||||
public int MaxCharacterLength {
|
||||
set {
|
||||
this.maxCharacterLength = value;
|
||||
}
|
||||
get {
|
||||
return maxCharacterLength;
|
||||
}
|
||||
}
|
||||
|
||||
public PdfWriter Writer {
|
||||
get {
|
||||
return writer;
|
||||
}
|
||||
set {
|
||||
writer = value;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Moves the field keys from <CODE>from</CODE> to <CODE>to</CODE>. The moved keys
|
||||
* are removed from <CODE>from</CODE>.
|
||||
* @param from the source
|
||||
* @param to the destination. It may be <CODE>null</CODE>
|
||||
*/
|
||||
public static void MoveFields(PdfDictionary from, PdfDictionary to) {
|
||||
PdfName[] keys = new PdfName[from.Size];
|
||||
foreach (PdfName key in keys) {
|
||||
if (fieldKeys.ContainsKey(key)) {
|
||||
if (to != null)
|
||||
to.Put(key, from.Get(key));
|
||||
from.Remove(key);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user