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390
iTechSharp/iTextSharp/text/pdf/codec/wmf/MetaState.cs
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390
iTechSharp/iTextSharp/text/pdf/codec/wmf/MetaState.cs
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using System;
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using System.Collections;
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using iTextSharp.text;
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/*
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* $Id: MetaState.cs,v 1.6 2008/05/13 11:25:37 psoares33 Exp $
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*
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*
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* Copyright 2001, 2002 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.codec.wmf {
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public class MetaState {
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public static int TA_NOUPDATECP = 0;
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public static int TA_UPDATECP = 1;
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public static int TA_LEFT = 0;
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public static int TA_RIGHT = 2;
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public static int TA_CENTER = 6;
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public static int TA_TOP = 0;
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public static int TA_BOTTOM = 8;
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public static int TA_BASELINE = 24;
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public static int TRANSPARENT = 1;
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public static int OPAQUE = 2;
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public static int ALTERNATE = 1;
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public static int WINDING = 2;
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public Stack savedStates;
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public ArrayList MetaObjects;
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public System.Drawing.Point currentPoint;
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public MetaPen currentPen;
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public MetaBrush currentBrush;
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public MetaFont currentFont;
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public Color currentBackgroundColor = Color.WHITE;
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public Color currentTextColor = Color.BLACK;
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public int backgroundMode = OPAQUE;
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public int polyFillMode = ALTERNATE;
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public int lineJoin = 1;
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public int textAlign;
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public int offsetWx;
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public int offsetWy;
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public int extentWx;
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public int extentWy;
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public float scalingX;
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public float scalingY;
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/** Creates new MetaState */
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public MetaState() {
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savedStates = new Stack();
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MetaObjects = new ArrayList();
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currentPoint = new System.Drawing.Point(0, 0);
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currentPen = new MetaPen();
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currentBrush = new MetaBrush();
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currentFont = new MetaFont();
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}
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public MetaState(MetaState state) {
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metaState = state;
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}
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public MetaState metaState {
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set {
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savedStates = value.savedStates;
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MetaObjects = value.MetaObjects;
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currentPoint = value.currentPoint;
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currentPen = value.currentPen;
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currentBrush = value.currentBrush;
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currentFont = value.currentFont;
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currentBackgroundColor = value.currentBackgroundColor;
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currentTextColor = value.currentTextColor;
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backgroundMode = value.backgroundMode;
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polyFillMode = value.polyFillMode;
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textAlign = value.textAlign;
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lineJoin = value.lineJoin;
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offsetWx = value.offsetWx;
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offsetWy = value.offsetWy;
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extentWx = value.extentWx;
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extentWy = value.extentWy;
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scalingX = value.scalingX;
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scalingY = value.scalingY;
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}
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}
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public void AddMetaObject(MetaObject obj) {
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for (int k = 0; k < MetaObjects.Count; ++k) {
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if (MetaObjects[k] == null) {
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MetaObjects[k] = obj;
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return;
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}
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}
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MetaObjects.Add(obj);
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}
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public void SelectMetaObject(int index, PdfContentByte cb) {
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MetaObject obj = (MetaObject)MetaObjects[index];
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if (obj == null)
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return;
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int style;
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switch (obj.Type) {
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case MetaObject.META_BRUSH:
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currentBrush = (MetaBrush)obj;
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style = currentBrush.Style;
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if (style == MetaBrush.BS_SOLID) {
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Color color = currentBrush.Color;
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cb.SetColorFill(color);
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}
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else if (style == MetaBrush.BS_HATCHED) {
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Color color = currentBackgroundColor;
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cb.SetColorFill(color);
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}
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break;
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case MetaObject.META_PEN: {
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currentPen = (MetaPen)obj;
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style = currentPen.Style;
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if (style != MetaPen.PS_NULL) {
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Color color = currentPen.Color;
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cb.SetColorStroke(color);
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cb.SetLineWidth(Math.Abs((float)currentPen.PenWidth * scalingX / extentWx));
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switch (style) {
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case MetaPen.PS_DASH:
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cb.SetLineDash(18, 6, 0);
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break;
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case MetaPen.PS_DASHDOT:
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cb.SetLiteral("[9 6 3 6]0 d\n");
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break;
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case MetaPen.PS_DASHDOTDOT:
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cb.SetLiteral("[9 3 3 3 3 3]0 d\n");
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break;
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case MetaPen.PS_DOT:
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cb.SetLineDash(3, 0);
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break;
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default:
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cb.SetLineDash(0);
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break;
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}
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}
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break;
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}
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case MetaObject.META_FONT: {
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currentFont = (MetaFont)obj;
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break;
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}
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}
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}
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public void DeleteMetaObject(int index) {
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MetaObjects[index] = null;
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}
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public void SaveState(PdfContentByte cb) {
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cb.SaveState();
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MetaState state = new MetaState(this);
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savedStates.Push(state);
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}
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public void RestoreState(int index, PdfContentByte cb) {
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int pops;
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if (index < 0)
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pops = Math.Min(-index, savedStates.Count);
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else
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pops = Math.Max(savedStates.Count - index, 0);
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if (pops == 0)
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return;
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MetaState state = null;
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while (pops-- != 0) {
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cb.RestoreState();
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state = (MetaState)savedStates.Pop();
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}
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metaState = state;
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}
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public void Cleanup(PdfContentByte cb) {
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int k = savedStates.Count;
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while (k-- > 0)
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cb.RestoreState();
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}
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public float TransformX(int x) {
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return ((float)x - offsetWx) * scalingX / extentWx;
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}
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public float TransformY(int y) {
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return (1f - ((float)y - offsetWy) / extentWy) * scalingY;
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}
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public float ScalingX {
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set {
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this.scalingX = value;
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}
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}
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public float ScalingY {
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set {
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this.scalingY = value;
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}
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}
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public int OffsetWx {
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set {
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this.offsetWx = value;
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}
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}
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public int OffsetWy {
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set {
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this.offsetWy = value;
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}
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}
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public int ExtentWx {
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set {
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this.extentWx = value;
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}
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}
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public int ExtentWy {
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set {
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this.extentWy = value;
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}
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}
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public float TransformAngle(float angle) {
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float ta = scalingY < 0 ? -angle : angle;
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return (float)(scalingX < 0 ? Math.PI - ta : ta);
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}
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public System.Drawing.Point CurrentPoint {
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get {
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return currentPoint;
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}
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set {
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currentPoint = value;
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}
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}
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public MetaBrush CurrentBrush {
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get {
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return currentBrush;
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}
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}
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public MetaPen CurrentPen {
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get {
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return currentPen;
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}
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}
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public MetaFont CurrentFont {
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get {
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return currentFont;
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}
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}
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/** Getter for property currentBackgroundColor.
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* @return Value of property currentBackgroundColor.
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*/
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public Color CurrentBackgroundColor {
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get {
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return currentBackgroundColor;
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}
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set {
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this.currentBackgroundColor = value;
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}
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}
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/** Getter for property currentTextColor.
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* @return Value of property currentTextColor.
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*/
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public Color CurrentTextColor {
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get {
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return currentTextColor;
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}
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set {
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this.currentTextColor = value;
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}
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}
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/** Getter for property backgroundMode.
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* @return Value of property backgroundMode.
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*/
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public int BackgroundMode {
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get {
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return backgroundMode;
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}
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set {
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this.backgroundMode = value;
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}
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}
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/** Getter for property textAlign.
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* @return Value of property textAlign.
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*/
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public int TextAlign {
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get {
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return textAlign;
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}
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set {
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this.textAlign = value;
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}
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}
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/** Getter for property polyFillMode.
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* @return Value of property polyFillMode.
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*/
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public int PolyFillMode {
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get {
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return polyFillMode;
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}
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set {
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this.polyFillMode = value;
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}
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}
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public PdfContentByte LineJoinRectangle {
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set {
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if (lineJoin != 0) {
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lineJoin = 0;
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value.SetLineJoin(0);
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}
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}
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}
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public PdfContentByte LineJoinPolygon {
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set {
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if (lineJoin == 0) {
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lineJoin = 1;
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value.SetLineJoin(1);
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}
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}
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}
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public bool LineNeutral {
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get {
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return (lineJoin == 0);
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}
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}
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}
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}
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