Set imageableArea through options in PrintImage.

Author: antoineveldhoven

src/qz/printer/action/PrintImage.java

@@ -26,15 +26,13 @@
 import javax.imageio.ImageIO;
 import javax.print.attribute.PrintRequestAttributeSet;
 import javax.print.attribute.ResolutionSyntax;
+import javax.print.attribute.standard.MediaPrintableArea;
 import javax.print.attribute.standard.OrientationRequested;
 import javax.print.attribute.standard.PrinterResolution;
 import java.awt.*;
 import java.awt.geom.Rectangle2D;
 import java.awt.image.BufferedImage;
-import java.awt.print.PageFormat;
-import java.awt.print.Printable;
-import java.awt.print.PrinterException;
-import java.awt.print.PrinterJob;
+import java.awt.print.*;
 import java.io.ByteArrayInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
@@ -51,6 +49,9 @@ public class PrintImage extends PrintPixel implements PrintProcessor, Printable
 
     protected List<BufferedImage> images;
 
+    private double docWidth = 0;
+    private double docHeight = 0;
+
     protected double dpiScale = 1;
     protected boolean scaleImage = false;
     protected Object dithering = RenderingHints.VALUE_DITHER_DEFAULT;
@@ -69,11 +70,24 @@ public PrintingUtilities.Format getFormat() {
 
     @Override
     public void parseData(JSONArray printData, PrintOptions options) throws JSONException, UnsupportedOperationException {
+        PrintOptions.Pixel pxlOpts = options.getPixelOptions();
+        double convert = 72.0 / pxlOpts.getUnits().as1Inch();
         dpiScale = (options.getPixelOptions().getDensity() * options.getPixelOptions().getUnits().as1Inch()) / 72.0;
 
         for(int i = 0; i < printData.length(); i++) {
             JSONObject data = printData.getJSONObject(i);
 
+            if (!data.isNull("options")) {
+                JSONObject dataOpt = data.getJSONObject("options");
+
+                if (!dataOpt.isNull("pageWidth") && dataOpt.optDouble("pageWidth") > 0) {
+                    docWidth = dataOpt.optDouble("pageWidth") * convert;
+                }
+                if (!dataOpt.isNull("pageHeight") && dataOpt.optDouble("pageHeight") > 0) {
+                    docHeight = dataOpt.optDouble("pageHeight") * convert;
+                }
+            }
+
             PrintingUtilities.Flavor flavor = PrintingUtilities.Flavor.parse(data, PrintingUtilities.Flavor.FILE);
 
             try {
@@ -166,6 +180,19 @@ public void print(PrintOutput output, PrintOptions options) throws PrinterExcept
         PrintOptions.Pixel pxlOpts = options.getPixelOptions();
         PrintRequestAttributeSet attributes = applyDefaultSettings(pxlOpts, page, output.getSupportedMedia());
 
+        if (docWidth > 0 || docHeight > 0) {
+            Paper paper = page.getPaper();
+
+            if (docWidth <= 0) { docWidth = page.getImageableWidth(); }
+            if (docHeight <= 0) { docHeight = page.getImageableHeight(); }
+
+            paper.setImageableArea(paper.getImageableX(), paper.getImageableY(), docWidth, docHeight);
+            page.setPaper(paper);
+
+            //pdf uses imageable area from Paper, so this can be safely removed
+            attributes.remove(MediaPrintableArea.class);
+        }
+
         scaleImage = pxlOpts.isScaleContent();
         dithering = pxlOpts.getDithering();
         interpolation = pxlOpts.getInterpolation();