X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.g2d%2Fsrc%2Forg%2Fsimantics%2Fg2d%2Fchassis%2FGraphics2DRenderer.java;fp=bundles%2Forg.simantics.g2d%2Fsrc%2Forg%2Fsimantics%2Fg2d%2Fchassis%2FGraphics2DRenderer.java;h=041e762b99901da70a02944be8523da2a29e7acf;hb=0ae2b770234dfc3cbb18bd38f324125cf0faca07;hp=4e0beba2cb9eeda4d59f6e9a317337fc564ed065;hpb=24e2b34260f219f0d1644ca7a138894980e25b14;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.g2d/src/org/simantics/g2d/chassis/Graphics2DRenderer.java b/bundles/org.simantics.g2d/src/org/simantics/g2d/chassis/Graphics2DRenderer.java
index 4e0beba2c..041e762b9 100644
--- a/bundles/org.simantics.g2d/src/org/simantics/g2d/chassis/Graphics2DRenderer.java
+++ b/bundles/org.simantics.g2d/src/org/simantics/g2d/chassis/Graphics2DRenderer.java
@@ -1,140 +1,140 @@
-/*******************************************************************************
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management
- * in Industry THTH ry.
- * 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:
- *     VTT Technical Research Centre of Finland - initial API and implementation
- *******************************************************************************/
-/*
- *
- * @author Toni Kalajainen
- */
-package org.simantics.g2d.chassis;
-
-import java.awt.Graphics2D;
-import java.awt.image.BufferedImage;
-
-import org.eclipse.swt.graphics.GC;
-import org.eclipse.swt.graphics.Image;
-import org.eclipse.swt.graphics.ImageData;
-import org.eclipse.swt.graphics.PaletteData;
-import org.eclipse.swt.widgets.Display;
-
-/**
- * Helper class allowing the use of Java 2D on SWT or Draw2D graphical
- * context.
- * @author Yannick Saillet
- */
-public class Graphics2DRenderer {
-  private static final PaletteData PALETTE_DATA =
-    new PaletteData(0xFF0000, 0xFF00, 0xFF);
-
-  private BufferedImage awtImage;
-  private Image swtImage;
-  private ImageData swtImageData;
-  private int[] awtPixels;
-
-  /** RGB value to use as transparent color */
-  private static final int TRANSPARENT_COLOR = 0x123456;
-
-  /**
-   * Prepare to render on a SWT graphics context.
-   */
-  public void prepareRendering(GC gc) {
-    org.eclipse.swt.graphics.Rectangle clip = gc.getClipping();
-    prepareRendering(clip.x, clip.y, clip.width, clip.height);
-  }
-
-  /**
-   * Prepare the AWT offscreen image for the rendering of the rectangular
-   * region given as parameter.
-   */
-  private void prepareRendering(int clipX, int clipY, int clipW, int clipH) {
-    // check that the offscreen images are initialized and large enough
-    checkOffScreenImages(clipW, clipH);
-    // fill the region in the AWT image with the transparent color
-    java.awt.Graphics awtGraphics = awtImage.getGraphics();
-    awtGraphics.setColor(new java.awt.Color(TRANSPARENT_COLOR));
-    awtGraphics.fillRect(clipX, clipY, clipW, clipH);
-  }
-
-  /**
-   * Returns the Graphics2D context to use.
-   */
-  public Graphics2D getGraphics2D() {
-    if (awtImage == null) return null;
-    return (Graphics2D) awtImage.getGraphics();
-  }
-
-  /**
-   * Complete the rendering by flushing the 2D renderer on a SWT graphical
-   * context.
-   */
-  public void render(GC gc) {
-    if (awtImage == null) return;
-
-    org.eclipse.swt.graphics.Rectangle clip = gc.getClipping();
-    transferPixels(clip.x, clip.y, clip.width, clip.height);
-    gc.drawImage(swtImage, clip.x, clip.y, clip.width, clip.height,
-                 clip.x, clip.y, clip.width, clip.height);
-  }
-
-  /**
-   * Transfer a rectangular region from the AWT image to the SWT image.
-   */
-  private void transferPixels(int clipX, int clipY, int clipW, int clipH) {
-    int step = swtImageData.depth / 8;
-    byte[] data = swtImageData.data;
-    awtImage.getRGB(clipX, clipY, clipW, clipH, awtPixels, 0, clipW);
-    for (int i = 0; i < clipH; i++) {
-      int idx = (clipY + i) * swtImageData.bytesPerLine + clipX * step;
-      for (int j = 0; j < clipW; j++) {
-        int rgb = awtPixels[j + i * clipW];
-        for (int k = swtImageData.depth - 8; k >= 0; k -= 8) {
-          data[idx++] = (byte) ((rgb >> k) & 0xFF);
-        }
-      }
-    }
-    if (swtImage != null) swtImage.dispose();
-    swtImage = new Image(Display.getDefault(), swtImageData);
-  }
-
-  /**
-   * Dispose the resources attached to this 2D renderer.
-   */
-  public void dispose() {
-    if (awtImage != null) awtImage.flush();
-    if (swtImage != null) swtImage.dispose();
-    awtImage = null;
-    swtImageData = null;
-    awtPixels = null;
-  }
-
-  /**
-   * Ensure that the offscreen images are initialized and are at least
-   * as large as the size given as parameter.
-   */
-  private void checkOffScreenImages(int width, int height) {
-    int currentImageWidth = 0;
-    int currentImageHeight = 0;
-    if (swtImage != null) {
-      currentImageWidth = swtImage.getImageData().width;
-      currentImageHeight = swtImage.getImageData().height;
-    }
-
-    // if the offscreen images are too small, recreate them
-    if (width > currentImageWidth || height > currentImageHeight) {
-      dispose();
-      width = Math.max(width, currentImageWidth);
-      height = Math.max(height, currentImageHeight);
-      awtImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
-      swtImageData = new ImageData(width, height, 24, PALETTE_DATA);
-      swtImageData.transparentPixel = TRANSPARENT_COLOR;
-      awtPixels = new int[width * height];
-    }
-  }
-}
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * 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:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+/*
+ *
+ * @author Toni Kalajainen
+ */
+package org.simantics.g2d.chassis;
+
+import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
+
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.ImageData;
+import org.eclipse.swt.graphics.PaletteData;
+import org.eclipse.swt.widgets.Display;
+
+/**
+ * Helper class allowing the use of Java 2D on SWT or Draw2D graphical
+ * context.
+ * @author Yannick Saillet
+ */
+public class Graphics2DRenderer {
+  private static final PaletteData PALETTE_DATA =
+    new PaletteData(0xFF0000, 0xFF00, 0xFF);
+
+  private BufferedImage awtImage;
+  private Image swtImage;
+  private ImageData swtImageData;
+  private int[] awtPixels;
+
+  /** RGB value to use as transparent color */
+  private static final int TRANSPARENT_COLOR = 0x123456;
+
+  /**
+   * Prepare to render on a SWT graphics context.
+   */
+  public void prepareRendering(GC gc) {
+    org.eclipse.swt.graphics.Rectangle clip = gc.getClipping();
+    prepareRendering(clip.x, clip.y, clip.width, clip.height);
+  }
+
+  /**
+   * Prepare the AWT offscreen image for the rendering of the rectangular
+   * region given as parameter.
+   */
+  private void prepareRendering(int clipX, int clipY, int clipW, int clipH) {
+    // check that the offscreen images are initialized and large enough
+    checkOffScreenImages(clipW, clipH);
+    // fill the region in the AWT image with the transparent color
+    java.awt.Graphics awtGraphics = awtImage.getGraphics();
+    awtGraphics.setColor(new java.awt.Color(TRANSPARENT_COLOR));
+    awtGraphics.fillRect(clipX, clipY, clipW, clipH);
+  }
+
+  /**
+   * Returns the Graphics2D context to use.
+   */
+  public Graphics2D getGraphics2D() {
+    if (awtImage == null) return null;
+    return (Graphics2D) awtImage.getGraphics();
+  }
+
+  /**
+   * Complete the rendering by flushing the 2D renderer on a SWT graphical
+   * context.
+   */
+  public void render(GC gc) {
+    if (awtImage == null) return;
+
+    org.eclipse.swt.graphics.Rectangle clip = gc.getClipping();
+    transferPixels(clip.x, clip.y, clip.width, clip.height);
+    gc.drawImage(swtImage, clip.x, clip.y, clip.width, clip.height,
+                 clip.x, clip.y, clip.width, clip.height);
+  }
+
+  /**
+   * Transfer a rectangular region from the AWT image to the SWT image.
+   */
+  private void transferPixels(int clipX, int clipY, int clipW, int clipH) {
+    int step = swtImageData.depth / 8;
+    byte[] data = swtImageData.data;
+    awtImage.getRGB(clipX, clipY, clipW, clipH, awtPixels, 0, clipW);
+    for (int i = 0; i < clipH; i++) {
+      int idx = (clipY + i) * swtImageData.bytesPerLine + clipX * step;
+      for (int j = 0; j < clipW; j++) {
+        int rgb = awtPixels[j + i * clipW];
+        for (int k = swtImageData.depth - 8; k >= 0; k -= 8) {
+          data[idx++] = (byte) ((rgb >> k) & 0xFF);
+        }
+      }
+    }
+    if (swtImage != null) swtImage.dispose();
+    swtImage = new Image(Display.getDefault(), swtImageData);
+  }
+
+  /**
+   * Dispose the resources attached to this 2D renderer.
+   */
+  public void dispose() {
+    if (awtImage != null) awtImage.flush();
+    if (swtImage != null) swtImage.dispose();
+    awtImage = null;
+    swtImageData = null;
+    awtPixels = null;
+  }
+
+  /**
+   * Ensure that the offscreen images are initialized and are at least
+   * as large as the size given as parameter.
+   */
+  private void checkOffScreenImages(int width, int height) {
+    int currentImageWidth = 0;
+    int currentImageHeight = 0;
+    if (swtImage != null) {
+      currentImageWidth = swtImage.getImageData().width;
+      currentImageHeight = swtImage.getImageData().height;
+    }
+
+    // if the offscreen images are too small, recreate them
+    if (width > currentImageWidth || height > currentImageHeight) {
+      dispose();
+      width = Math.max(width, currentImageWidth);
+      height = Math.max(height, currentImageHeight);
+      awtImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
+      swtImageData = new ImageData(width, height, 24, PALETTE_DATA);
+      swtImageData.transparentPixel = TRANSPARENT_COLOR;
+      awtPixels = new int[width * height];
+    }
+  }
+}