1 files changed, 132 insertions, 0 deletions
diff --git a/platform/java/example/TraceDevice.java b/platform/java/example/TraceDevice.java
new file mode 100644
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--- /dev/null
+++ b/platform/java/example/TraceDevice.java
@@ -0,0 +1,132 @@
+package example;
+
+import com.artifex.mupdf.fitz.*;
+
+public class TraceDevice extends Device implements PathWalker, TextWalker
+{
+	public String traceColor(ColorSpace cs, float color[], float alpha) {
+		String s = cs + " [";
+		int i;
+		for (i = 0; i < color.length; ++i) {
+			if (i > 0) s += " ";
+			s += color[i];
+		}
+		return s + "] " + alpha;
+	}
+	public String traceStroke(StrokeState stroke) {
+		return "c=" + stroke.getStartCap() + "," + stroke.getDashCap() + "," + stroke.getEndCap() +
+			" j=" + stroke.getLineJoin() +
+			" m=" + stroke.getMiterLimit() +
+			" l=" + stroke.getLineWidth();
+	}
+
+	public void moveTo(float x, float y) {
+		System.out.println("moveto " + x + " " + y);
+	}
+	public void lineTo(float x, float y) {
+		System.out.println("lineto " + x + " " + y);
+	}
+	public void curveTo(float cx1, float cy1, float cx2, float cy2, float ex, float ey) {
+		System.out.println("curveto " + cx1 + " " + cy1 + " " + cx2 + " " + cy2 + " " + ex + " " + ey);
+	}
+	public void closePath() {
+		System.out.println("closepath");
+	}
+
+	public void showGlyph(Font font, Matrix trm, int glyph, int unicode, boolean wmode) {
+		System.out.println("glyph '" + (char)unicode + "' " + glyph + "\t" + font + " " +  trm);
+	}
+
+	public void tracePath(Path path) {
+		path.walk(this);
+	}
+	public void traceText(Text text) {
+		text.walk(this);
+	}
+
+	public void fillPath(Path path, boolean evenOdd, Matrix ctm, ColorSpace cs, float color[], float alpha) {
+		System.out.println("fillPath " + evenOdd + " " + ctm + " " + traceColor(cs, color, alpha));
+		tracePath(path);
+	}
+	public void strokePath(Path path, StrokeState stroke, Matrix ctm, ColorSpace cs, float color[], float alpha) {
+		System.out.println("strokePath " + traceStroke(stroke) + " " + ctm + " " + traceColor(cs, color, alpha));
+		tracePath(path);
+	}
+	public void clipPath(Path path, Rect rect, boolean evenOdd, Matrix ctm) {
+		System.out.println("clipPath " + evenOdd + " " + ctm);
+		tracePath(path);
+	}
+	public void clipStrokePath(Path path, Rect rect, StrokeState stroke, Matrix ctm) {
+		System.out.println("clipStrokePath " + traceStroke(stroke) + " " + ctm);
+		tracePath(path);
+	}
+
+	public void fillText(Text text, Matrix ctm, ColorSpace cs, float color[], float alpha) {
+		System.out.println("fillText " + ctm + " " + traceColor(cs, color, alpha));
+		traceText(text);
+	}
+	public void strokeText(Text text, StrokeState stroke, Matrix ctm, ColorSpace cs, float color[], float alpha) {
+		System.out.println("strokeText " + ctm + " " + traceStroke(stroke) + " " + traceColor(cs, color, alpha));
+		traceText(text);
+	}
+	public void clipText(Text text, Matrix ctm) {
+		System.out.println("clipText " + ctm);
+		traceText(text);
+	}
+	public void clipStrokeText(Text text, StrokeState stroke, Matrix ctm) {
+		System.out.println("clipStrokeText " + ctm + " " + traceStroke(stroke));
+		traceText(text);
+	}
+	public void ignoreText(Text text, Matrix ctm) {
+		System.out.println("ignoreText " + ctm);
+		traceText(text);
+	}
+	public void fillShade(Shade shade, Matrix ctm, float alpha) {
+		System.out.println("fillShade " + ctm + " " + alpha);
+	}
+	public void fillImage(Image img, Matrix ctm, float alpha) {
+		System.out.println("fillImage " + ctm + " " + alpha);
+	}
+	public void fillImageMask(Image img, Matrix ctm, ColorSpace cs, float color[], float alpha) {
+		System.out.println("fillImageMask " + ctm + " " + traceColor(cs, color, alpha));
+	}
+	public void clipImageMask(Image img, Rect rect, Matrix ctm) {
+		System.out.println("clipImageMask " + ctm + " " + rect);
+	}
+	public void popClip() {
+		System.out.println("popClip");
+	}
+
+	public void beginMask(Rect rect, boolean luminosity, ColorSpace cs, float bc[]) {
+		System.out.println("beginMask r=" + rect +
+				" l=" + luminosity +
+				" " + traceColor(cs, bc, 1));
+	}
+	public void endMask() {
+		System.out.println("endMask");
+	}
+	public void beginGroup(Rect rect, boolean isolated, boolean knockout, int blendmode, float alpha) {
+		System.out.println("beginGroup r=" + rect +
+				" i=" + isolated +
+				" k=" + knockout +
+				" bm=" + blendmode +
+				" a=" + alpha);
+	}
+	public void endGroup() {
+		System.out.println("endGroup");
+	}
+	public int beginTile(Rect area, Rect view, float xstep, float ystep, Matrix ctm, int id) {
+		System.out.println("beginTile");
+		return 0;
+	}
+	public void endTile() {
+		System.out.println("endTile");
+	}
+
+	public static void main(String[] args) {
+		Document doc = new Document("pdfref17.pdf");
+		Page page = doc.loadPage(1144);
+		TraceDevice dev = new TraceDevice();
+		page.run(dev, new Matrix());
+	}
+}