/*
* $Id: MetaState.java 2366 2006-09-14 23:10:58Z xlv $
* $Name$
*
* Copyright 2001, 2002 Paulo Soares
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* http://www.lowagie.com/iText/
*/
package com.lowagie.text.pdf.codec.wmf;
import com.google.code.appengine.awt.Color;
import com.google.code.appengine.awt.Point;
import java.util.ArrayList;
import java.util.Stack;
import com.lowagie.text.pdf.PdfContentByte;
public class MetaState {
public static final int TA_NOUPDATECP = 0;
public static final int TA_UPDATECP = 1;
public static final int TA_LEFT = 0;
public static final int TA_RIGHT = 2;
public static final int TA_CENTER = 6;
public static final int TA_TOP = 0;
public static final int TA_BOTTOM = 8;
public static final int TA_BASELINE = 24;
public static final int TRANSPARENT = 1;
public static final int OPAQUE = 2;
public static final int ALTERNATE = 1;
public static final int WINDING = 2;
public Stack savedStates;
public ArrayList MetaObjects;
public Point currentPoint;
public MetaPen currentPen;
public MetaBrush currentBrush;
public MetaFont currentFont;
public Color currentBackgroundColor = Color.white;
public Color currentTextColor = Color.black;
public int backgroundMode = OPAQUE;
public int polyFillMode = ALTERNATE;
public int lineJoin = 1;
public int textAlign;
public int offsetWx;
public int offsetWy;
public int extentWx;
public int extentWy;
public float scalingX;
public float scalingY;
/** Creates new MetaState */
public MetaState() {
savedStates = new Stack();
MetaObjects = new ArrayList();
currentPoint = new Point(0, 0);
currentPen = new MetaPen();
currentBrush = new MetaBrush();
currentFont = new MetaFont();
}
public MetaState(MetaState state) {
setMetaState(state);
}
public void setMetaState(MetaState state) {
savedStates = state.savedStates;
MetaObjects = state.MetaObjects;
currentPoint = state.currentPoint;
currentPen = state.currentPen;
currentBrush = state.currentBrush;
currentFont = state.currentFont;
currentBackgroundColor = state.currentBackgroundColor;
currentTextColor = state.currentTextColor;
backgroundMode = state.backgroundMode;
polyFillMode = state.polyFillMode;
textAlign = state.textAlign;
lineJoin = state.lineJoin;
offsetWx = state.offsetWx;
offsetWy = state.offsetWy;
extentWx = state.extentWx;
extentWy = state.extentWy;
scalingX = state.scalingX;
scalingY = state.scalingY;
}
public void addMetaObject(MetaObject object) {
for (int k = 0; k < MetaObjects.size(); ++k) {
if (MetaObjects.get(k) == null) {
MetaObjects.set(k, object);
return;
}
}
MetaObjects.add(object);
}
public void selectMetaObject(int index, PdfContentByte cb) {
MetaObject obj = (MetaObject)MetaObjects.get(index);
if (obj == null)
return;
int style;
switch (obj.getType()) {
case MetaObject.META_BRUSH:
currentBrush = (MetaBrush)obj;
style = currentBrush.getStyle();
if (style == MetaBrush.BS_SOLID) {
Color color = currentBrush.getColor();
cb.setColorFill(color);
}
else if (style == MetaBrush.BS_HATCHED) {
Color color = currentBackgroundColor;
cb.setColorFill(color);
}
break;
case MetaObject.META_PEN:
{
currentPen = (MetaPen)obj;
style = currentPen.getStyle();
if (style != MetaPen.PS_NULL) {
Color color = currentPen.getColor();
cb.setColorStroke(color);
cb.setLineWidth(Math.abs((float)currentPen.getPenWidth() * scalingX / extentWx));
switch (style) {
case MetaPen.PS_DASH:
cb.setLineDash(18, 6, 0);
break;
case MetaPen.PS_DASHDOT:
cb.setLiteral("[9 6 3 6]0 d\n");
break;
case MetaPen.PS_DASHDOTDOT:
cb.setLiteral("[9 3 3 3 3 3]0 d\n");
break;
case MetaPen.PS_DOT:
cb.setLineDash(3, 0);
break;
default:
cb.setLineDash(0);
break;
}
}
break;
}
case MetaObject.META_FONT:
{
currentFont = (MetaFont)obj;
break;
}
}
}
public void deleteMetaObject(int index) {
MetaObjects.set(index, null);
}
public void saveState(PdfContentByte cb) {
cb.saveState();
MetaState state = new MetaState(this);
savedStates.push(state);
}
public void restoreState(int index, PdfContentByte cb) {
int pops;
if (index < 0)
pops = Math.min(-index, savedStates.size());
else
pops = Math.max(savedStates.size() - index, 0);
if (pops == 0)
return;
MetaState state = null;
while (pops-- != 0) {
cb.restoreState();
state = (MetaState)savedStates.pop();
}
setMetaState(state);
}
public void cleanup(PdfContentByte cb) {
int k = savedStates.size();
while (k-- > 0)
cb.restoreState();
}
public float transformX(int x) {
return ((float)x - offsetWx) * scalingX / extentWx;
}
public float transformY(int y) {
return (1f - ((float)y - offsetWy) / extentWy) * scalingY;
}
public void setScalingX(float scalingX) {
this.scalingX = scalingX;
}
public void setScalingY(float scalingY) {
this.scalingY = scalingY;
}
public void setOffsetWx(int offsetWx) {
this.offsetWx = offsetWx;
}
public void setOffsetWy(int offsetWy) {
this.offsetWy = offsetWy;
}
public void setExtentWx(int extentWx) {
this.extentWx = extentWx;
}
public void setExtentWy(int extentWy) {
this.extentWy = extentWy;
}
public float transformAngle(float angle) {
float ta = scalingY < 0 ? -angle : angle;
return (float)(scalingX < 0 ? Math.PI - ta : ta);
}
public void setCurrentPoint(Point p) {
currentPoint = p;
}
public Point getCurrentPoint() {
return currentPoint;
}
public MetaBrush getCurrentBrush() {
return currentBrush;
}
public MetaPen getCurrentPen() {
return currentPen;
}
public MetaFont getCurrentFont() {
return currentFont;
}
/** Getter for property currentBackgroundColor.
* @return Value of property currentBackgroundColor.
*/
public Color getCurrentBackgroundColor() {
return currentBackgroundColor;
}
/** Setter for property currentBackgroundColor.
* @param currentBackgroundColor New value of property currentBackgroundColor.
*/
public void setCurrentBackgroundColor(Color currentBackgroundColor) {
this.currentBackgroundColor = currentBackgroundColor;
}
/** Getter for property currentTextColor.
* @return Value of property currentTextColor.
*/
public Color getCurrentTextColor() {
return currentTextColor;
}
/** Setter for property currentTextColor.
* @param currentTextColor New value of property currentTextColor.
*/
public void setCurrentTextColor(Color currentTextColor) {
this.currentTextColor = currentTextColor;
}
/** Getter for property backgroundMode.
* @return Value of property backgroundMode.
*/
public int getBackgroundMode() {
return backgroundMode;
}
/** Setter for property backgroundMode.
* @param backgroundMode New value of property backgroundMode.
*/
public void setBackgroundMode(int backgroundMode) {
this.backgroundMode = backgroundMode;
}
/** Getter for property textAlign.
* @return Value of property textAlign.
*/
public int getTextAlign() {
return textAlign;
}
/** Setter for property textAlign.
* @param textAlign New value of property textAlign.
*/
public void setTextAlign(int textAlign) {
this.textAlign = textAlign;
}
/** Getter for property polyFillMode.
* @return Value of property polyFillMode.
*/
public int getPolyFillMode() {
return polyFillMode;
}
/** Setter for property polyFillMode.
* @param polyFillMode New value of property polyFillMode.
*/
public void setPolyFillMode(int polyFillMode) {
this.polyFillMode = polyFillMode;
}
public void setLineJoinRectangle(PdfContentByte cb) {
if (lineJoin != 0) {
lineJoin = 0;
cb.setLineJoin(0);
}
}
public void setLineJoinPolygon(PdfContentByte cb) {
if (lineJoin == 0) {
lineJoin = 1;
cb.setLineJoin(1);
}
}
public boolean getLineNeutral() {
return (lineJoin == 0);
}
}