org.jpedal.render.ImageDisplay Maven / Gradle / Ivy
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2015 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* ImageDisplay.java
* ---------------
*/
package org.jpedal.render;
import java.awt.*;
import java.awt.geom.AffineTransform;
import java.awt.geom.Area;
import java.awt.image.BufferedImage;
import org.jpedal.color.PdfPaint;
import org.jpedal.fonts.PdfFont;
import org.jpedal.fonts.glyph.PdfGlyph;
import org.jpedal.io.ObjectStore;
import org.jpedal.objects.GraphicsState;
import org.jpedal.parser.Cmd;
import org.jpedal.utils.repositories.generic.Vector_Rectangle_Int;
public class ImageDisplay extends BaseDisplay implements DynamicVectorRenderer {
public ImageDisplay(final int pageNumber, final boolean addBackground, final int defaultSize, final ObjectStore newObjectRef) {
type = DynamicVectorRenderer.DISPLAY_IMAGE;
this.rawPageNumber = pageNumber;
this.objectStoreRef = newObjectRef;
this.addBackground = addBackground;
//setupArrays(defaultSize);
areas = new Vector_Rectangle_Int(defaultSize);
}
// save image in array to draw
@Override
public final int drawImage(final int pageNumber, final BufferedImage image, final GraphicsState gs, final boolean alreadyCached, final String name, final int optionsApplied, final int previousUse) {
//track objects
int iw = (int) gs.CTM[0][0];
if (iw < 0) {
iw = -iw;
} else if (iw == 0) {
iw = (int) gs.CTM[0][1];
if (iw < 0) {
iw = -iw;
}
}
int ih = (int) gs.CTM[1][1];
if (ih < 0) {
ih = -ih;
} else if (ih == 0) {
ih = (int) gs.CTM[1][0];
if (ih < 0) {
ih = -ih;
}
}
final int[] rectParams = {(int) gs.CTM[2][0], (int) gs.CTM[2][1], iw, ih};
areas.addElement(rectParams);
blendMode=gs.getBMValue();
renderImage(null, image, gs.getAlpha(GraphicsState.FILL), gs, gs.x, gs.y, optionsApplied);
return -1;
}
/*save clip in array to draw*/
@Override
public void drawClip(final GraphicsState currentGraphicsState, final Shape defaultClip, final boolean canBeCached) {
final Area clip=currentGraphicsState.getClippingShape();
if(canBeCached && hasClips && lastClip==null&& clip==null){
}else if (!canBeCached || lastClip==null || clip==null || !clip.equals(lastClip)){
RenderUtils.renderClip(currentGraphicsState.getClippingShape(), null, defaultClip, g2);
lastClip=clip;
hasClips=true;
}
}
@Override
public void drawEmbeddedText(final float[][] Trm, final int fontSize, final PdfGlyph embeddedGlyph,
final Object javaGlyph, final int type, final GraphicsState gs, final double[] textTransform, final String glyf, final PdfFont currentFontData, final float glyfWidth) {
blendMode=gs.getBMValue();
AffineTransform at = null;
if(textTransform!=null) //can actually be null at line 199
{
at = new AffineTransform(textTransform);
}
if (type == TEXT) {
PdfPaint currentCol = null, fillCol = null;
final int text_fill_type = gs.getTextRenderType();
//for a fill
if ((text_fill_type & GraphicsState.FILL) == GraphicsState.FILL) {
fillCol = gs.getNonstrokeColor();
}
//and/or do a stroke
if ((text_fill_type & GraphicsState.STROKE) == GraphicsState.STROKE) {
currentCol = gs.getStrokeColor();
}
//set the stroke to current value
final Stroke newStroke = gs.getStroke();
g2.setStroke(newStroke);
final AffineTransform def = g2.getTransform();
g2.translate(Trm[2][0], Trm[2][1]);
if(at!=null) {
g2.transform(at);
}
renderText(Trm[2][0], Trm[2][1], text_fill_type, (Area) javaGlyph, null, currentCol, fillCol, gs.getAlpha(GraphicsState.STROKE),
gs.getAlpha(GraphicsState.FILL));
g2.setTransform(def);
} else {
PdfPaint strokeCol = null, fillCol = null;
final int text_fill_type = gs.getTextRenderType();
//for a fill
if ((text_fill_type & GraphicsState.FILL) == GraphicsState.FILL) {
fillCol = gs.getNonstrokeColor();
}
//and/or do a stroke
if ((text_fill_type & GraphicsState.STROKE) == GraphicsState.STROKE) {
strokeCol = gs.getStrokeColor();
}
//set the stroke to current value
final Stroke newStroke = gs.getStroke();
final Stroke currentStroke = g2.getStroke();
//avoid if stroke/fill
if (text_fill_type == GraphicsState.STROKE) {
g2.setStroke(newStroke);
}
//track objects so we can work out if anything behind
int fontSize2 = (int) gs.CTM[1][1];
if (fontSize2 < 0) {
fontSize2 = -fontSize2;
}
if (fontSize2 == 0) {
fontSize2 = (int) gs.CTM[0][1];
}
if (fontSize2 < 0) {
fontSize2 = -fontSize2;
}
// System.out.println(">>"+CTM[2][0]+" "+CTM[2][1]+" "+CTM[0][0]+" "+" "+CTM[0][1]+" "+" "+CTM[1][0]+" "+" "+CTM[1][1]+" "+this);
final int[] rectParams = {(int) gs.CTM[2][0], (int) gs.CTM[2][1], fontSize2, fontSize2};
areas.addElement(rectParams);
renderEmbeddedText(text_fill_type, embeddedGlyph, type, at, null, strokeCol, fillCol,
gs.getAlpha(GraphicsState.STROKE), gs.getAlpha(GraphicsState.FILL), (int) gs.getLineWidth());
g2.setStroke(currentStroke);
}
}
/*save shape in array to draw*/
@Override
public final void drawShape(final Shape currentShape, final GraphicsState gs, final int cmd) {
if((cmd==Cmd.F || cmd==Cmd.B) && gs.CTM[0][1]==0 && gs.CTM[1][0]==0){
final int x = currentShape.getBounds().x;
final int y = currentShape.getBounds().y;
final int w = currentShape.getBounds().width;
final int h = currentShape.getBounds().height;
final int[] rectParams = {x,y,w,h};
areas.addElement(rectParams);
}else{
areas.addElement(null);
}
blendMode=gs.getBMValue();
renderShape(null, gs.getFillType(), gs.getStrokeColor(), gs.getNonstrokeColor(), gs.getStroke(),
currentShape, gs.getAlpha(GraphicsState.STROKE), gs.getAlpha(GraphicsState.FILL));
}
@Override
public void drawShape(final Object currentShape, final GraphicsState currentGraphicsState, final int cmd){
// Stub method to supress BaseDisplay message
}
}
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