diff dwtx/draw2d/PrinterGraphics.d @ 98:95307ad235d9

Added Draw2d code, still work in progress
author Frank Benoit <benoit@tionex.de>
date Sun, 03 Aug 2008 00:52:14 +0200
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/draw2d/PrinterGraphics.d	Sun Aug 03 00:52:14 2008 +0200
@@ -0,0 +1,102 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+module dwtx.draw2d.PrinterGraphics;
+
+import dwt.dwthelper.utils;
+import dwtx.dwtxhelper.Collection;
+
+import dwt.graphics.Font;
+import dwt.graphics.FontData;
+import dwt.graphics.Image;
+import dwt.printing.Printer;
+import dwt.widgets.Display;
+import dwtx.draw2d.ScaledGraphics;
+import dwtx.draw2d.Graphics;
+
+/**
+ * A scalable graphics object used to print to a printer.
+ * @author danlee
+ */
+public class PrinterGraphics : ScaledGraphics {
+
+Map imageCache;
+
+Printer printer;
+
+/**
+ * Creates a new PrinterGraphics with Graphics g, using Printer p
+ * @param g Graphics object to draw with
+ * @param p Printer to print to
+ */
+public this(Graphics g, Printer p) {
+    imageCache = new HashMap();
+    super(g);
+    printer = p;
+}
+
+Font createFont(FontData data) {
+    return new Font(printer, data);
+}
+
+private Image printerImage(Image image) {
+    Image result = cast(Image)imageCache.get(image);
+    if (result !is null)
+        return result;
+
+    result = new Image(printer, image.getImageData());
+    imageCache.put(image, result);
+    return result;
+}
+
+/**
+ * @see dwtx.draw2d.ScaledGraphics#dispose()
+ */
+public void dispose() {
+    super.dispose();
+
+    //Dispose printer images
+    Iterator iter = imageCache.values().iterator();
+    while (iter.hasNext()) {
+        Image printerImage = (cast(Image)iter.next());
+        printerImage.dispose();
+    }
+
+    imageCache.clear();
+}
+
+/**
+ * @see dwtx.draw2d.Graphics#drawImage(Image, int, int)
+ */
+public void drawImage(Image srcImage, int x, int y) {
+    super.drawImage(printerImage(srcImage), x, y);
+}
+
+/**
+ * @see Graphics#drawImage(Image, int, int, int, int, int, int, int, int)
+ */
+public void drawImage(Image srcImage, int sx, int sy, int sw, int sh,
+                                        int tx, int ty, int tw, int th) {
+    super.drawImage(printerImage(srcImage), sx, sy, sw, sh, tx, ty, tw, th);
+}
+
+int zoomFontHeight(int height) {
+    return cast(int)
+        (height * zoom * Display.getCurrent().getDPI().y / printer.getDPI().y
+            + 0.0000001);
+}
+
+int zoomLineWidth(int w) {
+    return cast(int)(w * zoom);
+}
+
+}