org.jpedal.display.javafx.SingleDisplayFX Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of OpenViewerFX Show documentation
Show all versions of OpenViewerFX Show documentation
An Open Source JavaFX PDF Viewer
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2016 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
*
* ---------------
* SingleDisplayFX.java
* ---------------
*/
package org.jpedal.display.javafx;
import javafx.application.Platform;
import javafx.geometry.Bounds;
import javafx.scene.Group;
import javafx.scene.Node;
import javafx.scene.control.ScrollPane;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.shape.*;
import javafx.scene.transform.Transform;
import org.jpedal.PdfDecoderFX;
import org.jpedal.display.Display;
import org.jpedal.display.GUIDisplay;
import org.jpedal.examples.viewer.commands.javafx.JavaFXPreferences;
import org.jpedal.examples.viewer.gui.JavaFxGUI;
import org.jpedal.external.Options;
import org.jpedal.objects.acroforms.AcroRenderer;
import org.jpedal.parser.DecoderOptions;
import org.jpedal.render.DynamicVectorRenderer;
import org.jpedal.render.FXDisplay;
/**
* JavaFX version
*/
public class SingleDisplayFX extends GUIDisplay implements Display {
final PdfDecoderFX pdf;
public SingleDisplayFX(int pageNumber, final DynamicVectorRenderer currentDisplay, final PdfDecoderFX pdf, final DecoderOptions options) {
if(pageNumber<1) {
pageNumber = 1;
}
this.pageNumber=pageNumber;
this.currentDisplay=currentDisplay;
this.pdf=pdf;
this.options=options;
displayOffsets=pdf.getDisplayOffsets();
pageData=pdf.getPdfPageData();
}
public SingleDisplayFX(final PdfDecoderFX pdf, final DecoderOptions options) {
this.pdf=pdf;
this.options=options;
displayOffsets=pdf.getDisplayOffsets();
pageData=pdf.getPdfPageData();
}
@Override
public void refreshDisplay(){
if(Platform.isFxApplicationThread()){
if(displayScalingDbl!=null){
pdf.getTransforms().setAll(Transform.affine(displayScalingDbl[0],displayScalingDbl[1],displayScalingDbl[2],displayScalingDbl[3],displayScalingDbl[4],displayScalingDbl[5]));
}
if(currentDisplay!=null){
paintPage(pdf.highlightsPane, pdf.getFormRenderer());
}
}else{
//Ensure dialog is handled on FX thread
Platform.runLater(new Runnable() {
@Override
public void run() {
if(displayScalingDbl!=null){
pdf.getTransforms().setAll(Transform.affine(displayScalingDbl[0],displayScalingDbl[1],displayScalingDbl[2],displayScalingDbl[3],displayScalingDbl[4],displayScalingDbl[5]));
}
if(currentDisplay!=null){
paintPage(pdf.highlightsPane, pdf.getFormRenderer());
}
}
});
}
}
/**
* initialise panel and set size to display during updates and update the AffineTransform to new values
*/
@Override
public void setPageRotation(final int newRotation) {
super.setPageRotation(newRotation);
//force redraw if screen being cached
refreshDisplay();
}
// private Path getBorder() {
//
// Path border=null;
//
// if(pdf.isBorderPresent() && crw >0 && crh >0){
//
// border=getBorder(crw,crh);
//
// // if(!FXDisplay.useCanvas){
// // border.setFill(Color.WHITE);
// // }
//
// //Border myBorder=pdf.getBorder();
//
//// if((crw >0)&&(crh >0)&&(myBorder!=null)){
//// myBorder.paintBorder(pdf,g2,crx-myBorder.getBorderInsets(pdf).left, cry-myBorder.getBorderInsets(pdf).bottom, crw+myBorder.getBorderInsets(pdf).left+myBorder.getBorderInsets(pdf).right, crh+myBorder.getBorderInsets(pdf).bottom+myBorder.getBorderInsets(pdf).top);
//// }
// }
//
// return border;
// }
static Path getBorder(int crw, int crh) {
final Path border=new Path();
border.getElements().add(new MoveTo(-1,-1));
border.getElements().add(new LineTo(crw+2,-1));
border.getElements().add(new LineTo(crw+2,crh+2));
border.getElements().add(new LineTo(-1,crh+2));
border.getElements().add(new ClosePath());
border.setStroke(Color.rgb(0,0,0));
return border;
// myBorder.paintBorder(pdf,g2,crx-myBorder.getBorderInsets(pdf).left, cry-myBorder.getBorderInsets(pdf).bottom, crw+myBorder.getBorderInsets(pdf).left+myBorder.getBorderInsets(pdf).right, crh+myBorder.getBorderInsets(pdf).bottom+myBorder.getBorderInsets(pdf).top);
}
/**
* Resets the FXPane when we open a new PDF
*/
@Override
public void disableScreen() {
if (currentDisplay != null) {
final Group FXpane = ((FXDisplay) currentDisplay).getFXPane();
if (pdf.getChildren().contains(FXpane)) {
final int count = pdf.getChildren().size();
for (int i = 0; i < count; i++) {
pdf.getChildren().remove(0);
}
}
}
}
private void paintPage(final Object rawBox, final AcroRenderer formRenderer) {
final boolean debugPane=false;
final Pane box=(Pane)rawBox;
final Group fxPane=((FXDisplay)currentDisplay).getFXPane();
String pageNumberStr = String.valueOf(pageNumber);
final Rectangle clip = new Rectangle(crx,cry,crw,crh);
clip.setFill(Color.WHITE);
// Remove box from the current node it belongs to - avoids duplication errors
if(box != null && box.getParent() != null) {
((Group) box.getParent()).getChildren().remove(box);
}
fxPane.getChildren().addAll(box);
pdf.setPrefSize(crw, crh);
if(displayView==SINGLE_PAGE){
pdf.getChildren().clear();
if(formRenderer.isXFA()){
//draw wihte background border on xfa contents
final Path border = getBorder(crw, crh);
border.setFill(Color.WHITE);
pdf.getChildren().addAll(border);
border.setLayoutX(crx);
border.setLayoutY(cry);
}
if(!pdf.getChildren().contains(fxPane)){
pdf.getChildren().addAll(fxPane);
}
fxPane.setLayoutX(-crx);
fxPane.setLayoutY(-cry);
}else{
Node pagePath = null;
for (Node child : pdf.getChildren()) {
if(child.getId()!=null && child.getId().equals(pageNumberStr)){
if(child instanceof Path){
pagePath = child;
}
}
}
if(pagePath!=null){
pdf.getChildren().remove(pagePath);
}
fxPane.setId(pageNumberStr);
if(!pdf.getChildren().contains(fxPane)){
pdf.getChildren().addAll(fxPane);
}
final int[] xReached= multiDisplayOptions.getxReached();
final int[] yReached= multiDisplayOptions.getyReached();
//final int[] pageW=multiDisplayOptions.getPageW();
//final int[] pageH=multiDisplayOptions.getPageH();
int cx,cy,j=pageNumber;
cx=(int)(xReached[j]/scaling);
cy=(int)(yReached[j]/scaling);
//code works differently in Swing and FX so needs reversing
if(displayView==CONTINUOUS_FACING){
cx=currentOffset.getWidestPageR()-cx;
}
fxPane.setLayoutX(-cx);
fxPane.setLayoutY(pdf.getHeight()-cy);
}
if(!debugPane){
clip.setFill(Color.WHITE);
fxPane.setClip(clip);
}else{
//Debug Different GUI Display Panes
clip.setFill(Color.BLUE);
clip.setOpacity(0.5);
fxPane.getChildren().add(clip);
pdf.setStyle("-fx-background-color: red;");
pdf.getParent().setStyle("-fx-background-color: yellow;");
fxPane.setStyle("-fx-background-color: green;");
}
addForms(formRenderer);
}
private void addForms(final AcroRenderer formRenderer) {
int start=pageNumber,end=pageNumber;
//control if we display forms on multiple pages
if(displayView!=Display.SINGLE_PAGE){
start= getStartPage();
end= getEndPage();
if(start==0 || end==0 || lastEnd!=end || lastStart!=start) {
lastFormPage = -1;
}
lastEnd=end;
lastStart=start;
}
if((lastFormPage!=pageNumber) && (formRenderer != null)){
formRenderer.displayComponentsOnscreen(start,end);
//switch off if forms for this page found
if(formRenderer.getCompData().hasformsOnPageDecoded(pageNumber)) {
lastFormPage = pageNumber; //ensure not called too early
}
}
// Add the forms to the Pane
if(formRenderer!=null && currentOffset !=null){ //if all forms flattened, we can get a null value for currentOffset so avoid this case
formRenderer.getCompData().setPageValues(scaling,displayRotation,(int)indent,displayOffsets.getUserOffsetX(), displayOffsets.getUserOffsetY(),displayView,currentOffset.getWidestPageNR(), currentOffset.getWidestPageR());
formRenderer.getCompData().resetScaledLocation(scaling,displayRotation,(int)indent);//indent here does nothing.
}
}
@Override
public void init(final float scaling, final int displayRotation, final int pageNumber, final DynamicVectorRenderer currentDisplay, final boolean isInit){
this.pageData=pdf.getPdfPageData();
super.init(scaling, displayRotation, pageNumber, currentDisplay, isInit);
setPageSize(pageNumber, scaling);
lastFormPage = -1;
// if(displayView==SINGLE_PAGE){
//
// int[] singlePageSize=pdf.getMaximumSize();
// pdf.setMinSize(singlePageSize[0], singlePageSize[1]);
//
// }
}
/**
* Overridden here as we don't need to scale/rotate as that is done using FX transforms
*/
@Override
public void setPageSize(final int pageNumber, final float scaling) {
//handle clip - crop box values
pageData.setScalingValue(scaling); //ensure aligned
topW=pageData.getCropBoxWidth(pageNumber);
topH=pageData.getCropBoxHeight(pageNumber);
final double mediaH=pageData.getMediaBoxHeight(pageNumber);
cropX=pageData.getCropBoxX(pageNumber);
cropY=pageData.getCropBoxY(pageNumber);
// int mediaX = pageData.getMediaBoxX(pageNumber);
//int mediaY = pageData.getMediaBoxY(pageNumber);
cropW=topW;
cropH=topH;
//actual clip values - for flipped page
if(displayView==Display.SINGLE_PAGE){
crx =(int)(insetW+cropX);
cry =(int)(insetH-cropY);
}else{
crx =insetW;
cry =insetH;
}
//amount needed to move cropped page into correct position
int offsetY=(int) (mediaH-cropH);
// Adjust the offset more in cases like costena
if(!pageData.getMediaValue(pageNumber).isEmpty()){
offsetY -= pageData.getMediaBoxHeight(pageNumber) - (int)(cropY + cropH) - pageData.getCropBoxY(pageNumber);
}
crw =(int)(cropW);
crh =(int)(cropH);
cry += offsetY;
}
/**
* rectangle drawn on screen by user
*/
private int[] cursorBoxOnScreen;
//private Rectangle lastCursorBoxOnScreen;
@Override
public int[] getCursorBoxOnScreenAsArray(){
return cursorBoxOnScreen;
}
Rectangle cursorRect;
final Pane cursorBoxPane = new Pane();
@Override
public void updateCursorBoxOnScreen(final int[] newOutlineRectangle, final int outlineColor, final int pageNumber, final int x_size, final int y_size) {
if (displayView != Display.SINGLE_PAGE && getPageSize(displayView)[0] == 0 && getPageSize(displayView)[1] == 0) {
return;
}
if (newOutlineRectangle != null) {
int x = newOutlineRectangle[0];
int y = newOutlineRectangle[1];
int w = newOutlineRectangle[2];
int h = newOutlineRectangle[3];
final int cropX = pageData.getCropBoxX(pageNumber);
final int cropY = pageData.getCropBoxY(pageNumber);
// final int cropW = pageData.getCropBoxWidth(pageNumber);
//final int cropH = pageData.getCropBoxHeight(pageNumber);
//allow for odd crops and correct
// if (y > 0 && y < (cropY)) {
// y += cropY;
// }
//
// if (x < cropX) {
// final int diff = cropX - x;
// w -= diff;
// x = cropX;
// }
//
// if (y < cropY) {
// final int diff = cropY - y;
// h -= diff;
// y += diff;
// }
// if ((x + w) > cropW + cropX) {
// w = cropX + cropW - x;
// }
// if ((y + h) > (cropY + cropH)) {
// h = cropY + cropH - y;
// }
y -= cropY;
x -= cropX;
cursorBoxOnScreen = new int[]{x, y, w, h};
if(DecoderOptions.showMouseBox){
//Setup Cursor box.
cursorRect = new Rectangle(x, y, w, h);
cursorRect.setStroke(JavaFXPreferences.shiftColorSpaceToFX(outlineColor));
cursorRect.setFill(Color.TRANSPARENT);
//Draw Cursor box.
if(pdf.getChildren().contains(cursorBoxPane)){
cursorBoxPane.getChildren().clear();
cursorBoxPane.getChildren().add(cursorRect);
pdf.getChildren().remove(cursorBoxPane);
}
pdf.getChildren().add(cursorBoxPane);
}
} else {
cursorBoxOnScreen = null;
if (pdf.getChildren().contains(cursorBoxPane)) {
cursorBoxPane.getChildren().clear();
pdf.getChildren().remove(cursorBoxPane);
}
}
}
@Override
public java.awt.Rectangle getDisplayedRectangle() {
final ScrollPane customFXHandle= ((JavaFxGUI)pdf.getExternalHandler(Options.MultiPageUpdate)).getPageContainer();
if(customFXHandle==null){
return new java.awt.Rectangle(0,0,0,0);
}
Bounds bounds = customFXHandle.getViewportBounds();
return getDisplayedRectangle(true,new java.awt.Rectangle((int)bounds.getMinX(),(int)-bounds.getMinY(),(int)bounds.getWidth(),(int)bounds.getHeight()));
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy