Merge commit '42b2e5ca519766e37ce6941ba4faecc9691cc403' into upstream

[debian/openrocket] / core / src / net / sf / openrocket / gui / print / AbstractPrintable.java

diff --git a/core/src/net/sf/openrocket/gui/print/AbstractPrintable.java b/core/src/net/sf/openrocket/gui/print/AbstractPrintable.java
new file mode 100644 (file)
index 0000000..585e497
--- /dev/null
+++ b/core/src/net/sf/openrocket/gui/print/AbstractPrintable.java
@@ -0,0 +1,80 @@
+package net.sf.openrocket.gui.print;
+
+import java.awt.BasicStroke;
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Image;
+import java.awt.RenderingHints;
+import java.awt.image.BufferedImage;
+
+public abstract class AbstractPrintable<T> extends PrintableComponent {
+    /**
+     * A thin stroke.
+     */
+    public final static BasicStroke thinStroke = new BasicStroke(1.0f);
+
+    /**
+     * A thick stroke.
+     */
+    public final static BasicStroke thickStroke = new BasicStroke(4.0f);
+
+    /**
+     * Constructor. Initialize this printable with the component to be printed.
+     *
+     * @param isDoubleBuffered  a boolean, true for double-buffering
+     * @param transition  the component to be printed
+     */
+    public AbstractPrintable(boolean isDoubleBuffered, T transition) {
+        init(transition);
+    }
+
+    /**
+     * Initialize the printable.
+     *
+     * @param component the component
+     */
+    protected abstract void init(T component);
+
+    /**
+     * Draw the component onto the graphics context.
+     *
+     * @param g2 the graphics context
+     */
+    protected abstract void draw(Graphics2D g2);
+
+    /**
+     * Returns a generated image of the component.  May then be used wherever AWT images can be used, or converted to
+     * another image/picture format and used accordingly.
+     *
+     * @return an awt image of the printable component
+     */
+    public Image createImage() {
+        int width = getWidth() + getOffsetX();
+        int height = getHeight() + getOffsetY();
+        // Create a buffered image in which to draw
+        BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
+        // Create a graphics contents on the buffered image
+        Graphics2D g2d = bufferedImage.createGraphics();
+        // Draw graphics
+        g2d.setBackground(Color.white);
+        g2d.clearRect(0, 0, width, height);
+        paintComponent(g2d);
+        // Graphics context no longer needed so dispose it
+        g2d.dispose();
+        return bufferedImage;
+    }
+
+    @Override
+    public void paintComponent(Graphics g) {
+        Graphics2D g2 = (Graphics2D) g;
+        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
+                RenderingHints.VALUE_ANTIALIAS_ON);
+
+        g2.setColor(Color.BLACK);
+        g2.setStroke(thinStroke);
+               g2.translate(getOffsetX(), getOffsetY());
+
+        draw(g2);
+    }
+}