org.jpedal.objects.acroforms.overridingImplementations.FixImageIcon 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
*
* ---------------
* FixImageIcon.java
* ---------------
*/
package org.jpedal.objects.acroforms.overridingImplementations;
import java.awt.*;
import java.awt.image.BufferedImage;
import javax.swing.Icon;
import javax.swing.SwingConstants;
import org.jpedal.io.PdfObjectReader;
import org.jpedal.objects.raw.FormObject;
import org.jpedal.objects.raw.FormStream;
import org.jpedal.objects.raw.PdfObject;
public class FixImageIcon extends CustomImageIcon implements Icon, SwingConstants {
private static final long serialVersionUID = 8946195842453749725L;
final PdfObject formObject;
/** used to tell the paint method that we need to scale up the image for printing */
private boolean currentlyPrinting;
private int printMultiplier = 1;
/** -1 means only one image,
0 means unselected,
1 means selected
*
if there is only one image it is stored as the selected image
*/
private int selected = -1;
private static final int UNSELECTEDICON = 0;
private static final int SELECTEDICON = 1;
/** stores the root image for selected and unselected icons */
private BufferedImage rootImageSelected, rootImageUnselected;
/** stores the final image after any icon rotation */
private BufferedImage imageSelected,imageUnselected;
private PdfObject selObj;
private PdfObject unSelObj;
private PdfObjectReader currentpdffile;
private int subtype;
/** if 0 no change, 1 offset image, 2 invert image */
private int offsetImage;
/** constructor to be used for one image */
public FixImageIcon(final PdfObject formObject, final BufferedImage img, final int iconRot) {
super(iconRot);
this.formObject=formObject;
if(img!=null) {
imageSelected = img;
} else
//if null store opaque image
{
imageSelected = FormObject.getOpaqueImage();
}
selected = -1;
}
/** new code to store the data to create the image when needed to the size needed
* offset = if 0 no change, 1 offset image, 2 invert image
*/
public FixImageIcon(final PdfObject formObject, final PdfObject imgObj, final int iconRot, final PdfObjectReader pdfObjectReader, final int type, final int offset){
super(iconRot);
this.formObject=formObject;
selObj = imgObj;
selected = -1;
currentpdffile = pdfObjectReader;
subtype = type;
offsetImage = offset;
// if(selObj.getObjectRefAsString().equals("128 0 R") || selObj.getObjectRefAsString().equals("130 0 R"))
// debug = true;
}
/** new code that stores the data to create the image at the defined size needed.
* constructor for 2 images to be used for multipul pressed images,
*
sel should be 1 if its currently selected, 0 if unselected.
*
offset = if 0 no change, 1 offset image, 2 invert image
*/
public FixImageIcon(final PdfObject formObject, final PdfObject selObject, final PdfObject unselObject, final int iconRot, final int sel,
final PdfObjectReader pdfObjectReader, final int type, final int offset) {
super(iconRot);
this.formObject=formObject;
selObj = selObject;
unSelObj = unselObject;
selected = sel;
currentpdffile = pdfObjectReader;
subtype = type;
offsetImage = offset;
// if(selObj.getObjectRefAsString().equals("128 0 R") || selObj.getObjectRefAsString().equals("130 0 R"))
// debug = true;
}
/** returns the currently selected Image*/
@Override
public Image getImage(){
final Image image;
checkAndCreateimage();
switch(selected){
case UNSELECTEDICON:
image = imageUnselected;
break;
default: //or SELECTEDICON
image = imageSelected;
break;
}
return image;
}
@Override
public synchronized void paintIcon(final Component c, final Graphics g, final int x, final int y) {
final BufferedImage image = (BufferedImage) getImage();
if (image == null) {
return;
}
if (c.isEnabled()) {
g.setColor(c.getBackground());
} else {
g.setColor(Color.gray);
}
final Graphics2D g2 = (Graphics2D) g;
if (iconWidth > 0 && iconHeight > 0) {
int drawWidth = iconWidth;
int drawHeight = iconHeight;
boolean rotateIcon = false;
if((iconRotation==270 || iconRotation==90)){
//mark to rotate the x and y positions later
rotateIcon = true;
//swap width and height so that the image is drawn in the corect orientation
//without changing the raw width and height for the icon size
drawWidth = iconHeight;
drawHeight = iconWidth;
}
//only work out scaling if we have a dictionary of an image, as otherwise it could be a blank image (i.e. 1 x 1).
if(currentpdffile!=null){
//work out w,h which we want to draw inside our icon to maintain aspect ratio.
float ws = drawWidth / (float)image.getWidth(null);
float hs = drawHeight / (float)image.getHeight(null);
//check if dimensions are correct and alter if not
final float diff = ws-hs;
final int diffInt = (int)diff;
if(diffInt!=0){
//reserve the current rotation marker as its wrong
rotateIcon = !rotateIcon;
final int tmp = drawWidth;
drawWidth = drawHeight;
drawHeight = tmp;
ws = drawWidth / (float)image.getWidth(null);
hs = drawHeight / (float)image.getHeight(null);
}
if(ws (rootImageUnselected.getWidth(null))
|| newHeight > (rootImageUnselected.getHeight(null))
|| newWidth < (rootImageUnselected.getWidth(null)/MAXSCALEFACTOR)
|| newHeight < (rootImageUnselected.getHeight(null)/MAXSCALEFACTOR)){
rootImageUnselected = FormStream.decode(formObject,currentpdffile, unSelObj, subtype,newWidth,newHeight,offsetImage,1);
imageUnselected = FormStream.rotate(rootImageUnselected,iconRotation);
}//icon rotation is always defined in the constructor so we dont need to change it
break;
default: //or SELECTEDICON
if(rootImageSelected==null
|| newWidth > (rootImageSelected.getWidth(null))
|| newHeight > (rootImageSelected.getHeight(null))
|| newWidth < (rootImageSelected.getWidth(null)/MAXSCALEFACTOR)
|| newHeight < (rootImageSelected.getHeight(null)/MAXSCALEFACTOR)){
rootImageSelected = FormStream.decode(formObject,currentpdffile, selObj, subtype,newWidth,newHeight,offsetImage,1);
imageSelected = FormStream.rotate(rootImageSelected,iconRotation);
}//icon rotation is always defined in the constructor so we dont need to change it
break;
}
}
/** if this imageicon was constructed for use with one image this will do nothing,
*
otherwise it will set the selected image to be the selected image if the flag is true
* or the unseleced image if the flag is false.
*/
public void swapImage(final boolean selectedImage) {
if(selected==-1) {
return;
}
if(selectedImage) {
selected = SELECTEDICON;
} else {
selected = UNSELECTEDICON;
}
}
/**generates higher quality images */
public void setPrinting(final boolean print, final int multiplier){
currentlyPrinting = print;
printMultiplier = multiplier;
checkAndCreateimage();
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy