/*
* $Id: MetaState.java 4784 2011-03-15 08:33:00Z blowagie $
*
* This file is part of the iText (R) project.
* Copyright (c) 1998-2011 1T3XT BVBA
* Authors: Bruno Lowagie, Paulo Soares, et al.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT,
* 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Affero General Public License for more details.
* You should have received a copy of the GNU Affero General Public License
* along with this program; if not, see http://www.gnu.org/licenses or write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://itextpdf.com/terms-of-use/
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License.
*
* In accordance with Section 7(b) of the GNU Affero General Public License,
* a covered work must retain the producer line in every PDF that is created
* or manipulated using iText.
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial activities involving the iText software without
* disclosing the source code of your own applications.
* These activities include: offering paid services to customers as an ASP,
* serving PDFs on the fly in a web application, shipping iText with a closed
* source product.
*
* For more information, please contact iText Software Corp. at this
* address: [email protected]
*/
package com.itextpdf.text.pdf.codec.wmf;
import java.util.ArrayList;
import java.util.Stack;
import com.itextpdf.text.BaseColor;
import com.itextpdf.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<MetaState> savedStates;
public ArrayList<MetaObject> MetaObjects;
public Point currentPoint;
public MetaPen currentPen;
public MetaBrush currentBrush;
public MetaFont currentFont;
public BaseColor currentBackgroundColor = BaseColor.WHITE;
public BaseColor currentTextColor = BaseColor.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<MetaState>();
MetaObjects = new ArrayList<MetaObject>();
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 = 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) {
BaseColor color = currentBrush.getColor();
cb.setColorFill(color);
}
else if (style == MetaBrush.BS_HATCHED) {
BaseColor color = currentBackgroundColor;
cb.setColorFill(color);
}
break;
case MetaObject.META_PEN:
{
currentPen = (MetaPen)obj;
style = currentPen.getStyle();
if (style != MetaPen.PS_NULL) {
BaseColor color = currentPen.getColor();
cb.setColorStroke(color);
cb.setLineWidth(Math.abs(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 = 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 BaseColor getCurrentBackgroundColor() {
return currentBackgroundColor;
}
/** Setter for property currentBackgroundColor.
* @param currentBackgroundColor New value of property currentBackgroundColor.
*/
public void setCurrentBackgroundColor(BaseColor currentBackgroundColor) {
this.currentBackgroundColor = currentBackgroundColor;
}
/** Getter for property currentTextColor.
* @return Value of property currentTextColor.
*/
public BaseColor getCurrentTextColor() {
return currentTextColor;
}
/** Setter for property currentTextColor.
* @param currentTextColor New value of property currentTextColor.
*/
public void setCurrentTextColor(BaseColor 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;
}
}
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