diff options
Diffstat (limited to 'TAO/examples/Simulator/DOVEBrowser/PersianVisComp.java')
| -rw-r--r-- | TAO/examples/Simulator/DOVEBrowser/PersianVisComp.java | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/TAO/examples/Simulator/DOVEBrowser/PersianVisComp.java b/TAO/examples/Simulator/DOVEBrowser/PersianVisComp.java new file mode 100644 index 00000000000..bf29e9aaf19 --- /dev/null +++ b/TAO/examples/Simulator/DOVEBrowser/PersianVisComp.java @@ -0,0 +1,209 @@ +// $Id$ +// +// = FILENAME +// PersianVisComp.java +// +// = AUTHOR +// Chris Gill <cdgill@cs.wustl.edu> +// +// = DESCRIPTION +// This is a Visualization Component for displaying a Persian +// Recursion drawing. +// +// ============================================================================ + + + + +import java.awt.*; +import java.util.*; + +// This was needed to help the class loader. +import java.awt.image.MemoryImageSource; + +public class PersianVisComp extends Canvas implements VisComp +{ + private static final Font FONT = new Font ("Dialog", Font.PLAIN, 10); + private static final int PIXELS_WIDE = 256; + private static final int TOTAL_PIXELS = PIXELS_WIDE * PIXELS_WIDE; + private static final int DRAW_OFFSET = 32; + + private String title_; + private Graphics offgraphics_; + private Image offscreen_; + private Dimension offscreensize_; + private int pixel_array_ []; + private MemoryImageSource image_source_; + public PersianVisComp () + { + super (); + title_ = ""; + this.setBackground (Color.white); + this.setForeground (Color.black); + pixel_array_ = new int [TOTAL_PIXELS]; + for (int i = 0; i < TOTAL_PIXELS; ++i) + pixel_array_ [i] = Color.white.getRGB (); + image_source_ = new MemoryImageSource (PIXELS_WIDE, PIXELS_WIDE, + pixel_array_, 0, PIXELS_WIDE); + } + + public void drawPixels (int x1, int y1, int x2, int y2, Color c) { + + int x_min; + int x_max; + int y_min; + int y_max; + int rgb_value = c.getRGB (); + + if (x1 < 0 || y1 < 0 || x2 < 0 || y2 < 0 + || x1 >= PIXELS_WIDE || y1 >= PIXELS_WIDE + || x2 >= PIXELS_WIDE || y2 >= PIXELS_WIDE) + { + System.err.println ("coordinates out of range: (" + + x1 + ", " + y1 + ") (" + + x2 + ", " + y2 + ")\n"); + return; + } + + if (x1 < x2) + { + x_min = x1; + x_max = x2; + } + else + { + x_min = x2; + x_max = x1; + } + + if (y1 < y2) + { + y_min = y1; + y_max = y2; + } + else + { + y_min = y2; + y_max = y1; + } + + // System.out.println ("Updating pixels: (" + // + x1 + ", " + y1 + ") (" + // + x2 + ", " + y2 + ")\n"); + + for (int x = x_min; x <= x_max; ++x) + for (int y = y_min; y <= y_max; ++y) + pixel_array_ [y * PIXELS_WIDE + x] = rgb_value; + } + + public void setName (String title) { + title_ = title; + } + + public int getProperty () { + return Properties.PERSIAN; + } + + public Dimension getMinimumSize () { + return new Dimension (PIXELS_WIDE + 2 * DRAW_OFFSET, + PIXELS_WIDE + 2 * DRAW_OFFSET); + } + + public Dimension getPreferredSize () { + return new Dimension (PIXELS_WIDE + 2 * DRAW_OFFSET, + PIXELS_WIDE + 2 * DRAW_OFFSET); + } + + public String getName () { + return title_; + } + + public void update (java.util.Observable observable, java.lang.Object obj) + { + PersianRecursion.Data data_temp_; + try { + data_temp_ = (PersianRecursion.Data) obj; + } + catch (Exception excp) { + data_temp_ = null; + System.out.println (excp); + System.out.println ("PR Visualization Component received exception!"); + return; + } + + Color c = Color.black; + + if (data_temp_.line_color == PersianRecursion.Line_Color_t.BLUE) + { + c = Color.red; + // c = Color.blue; + } + else if (data_temp_.line_color == PersianRecursion.Line_Color_t.RED) + { + c = Color.yellow; + // c = Color.red; + } + else if (data_temp_.line_color == PersianRecursion.Line_Color_t.GREEN) + { + c = Color.blue; + // c = Color.green; + } + else if (data_temp_.line_color == PersianRecursion.Line_Color_t.YELLOW) + { + c = Color.green; + // c = Color.yellow; + } + + drawPixels (data_temp_.x1, data_temp_.y1, + data_temp_.x2, data_temp_.y2, c); + + // System.out.println ("PersianVisComp: drawing {" + // + data_temp_.x1 + ", " + data_temp_.y1 + ", " + // + data_temp_.x2 + ", " + data_temp_.y2 + "}"); + + repaint (); + } + + public void update (Graphics g) + { + Dimension d = getSize (); + FontMetrics fm = g.getFontMetrics (); + int x1 = d.width - 8, y1, x2, y2, fheight = fm.getHeight (), i; + PersianRecursion.Data data_temp_; + + if ((offscreen_ == null) || + (offscreensize_.width != d.width - 8) || + (offscreensize_.height != d.height - 8)) + { + offscreen_ = createImage (d.width - 8, d.height - 8); + offscreensize_ = new Dimension (d.width - 8, d.height - 8); + offgraphics_ = offscreen_.getGraphics (); + offgraphics_.setFont (FONT); + } + + g.setColor (Color.lightGray); + g.draw3DRect (0, 0, d.width - 1, d.height - 1, true); + g.draw3DRect (1, 1, d.width - 3, d.height - 3, true); + g.draw3DRect (2, 2, d.width - 5, d.height - 5, true); + + offgraphics_.setColor (getBackground ()); + offgraphics_.fillRect (0, 0, offscreensize_.width, offscreensize_.height); + offgraphics_.setColor (getForeground ()); + offgraphics_.drawString (title_, 5, fheight); + + Image img = createImage (image_source_); + offgraphics_.drawImage (img, DRAW_OFFSET, DRAW_OFFSET, null); + + g.drawImage (offscreen_, 3, 3, null); + + // System.out.println ("updated."); + } + + public void paint (Graphics g) + { + update (g); + // System.out.println ("painted."); + } +} + + |