checkpoint

[slipway.git] / src / edu / berkeley / slipway / gui / R.java

diff --git a/src/edu/berkeley/slipway/gui/R.java b/src/edu/berkeley/slipway/gui/R.java
new file mode 100644 (file)
index 0000000..27ed3e7
--- /dev/null
+++ b/src/edu/berkeley/slipway/gui/R.java
@@ -0,0 +1,47 @@
+package edu.berkeley.slipway.gui;
+
+import com.atmel.fpslic.*;
+import java.awt.geom.*;
+
+public class R {
+
+    private double x1, x2, y1, y2;
+    public R(double x1, double y1, double x2, double y2) {
+        this.x1 = x1;
+        this.x2 = x2;
+        this.y1 = y1;
+        this.y2 = y2;
+    }
+
+    public double getWidth() { return Math.abs(x2-x1); }
+    public double getHeight() { return Math.abs(y2-y1); }
+    public double minx() { return Math.min(x1, x2); }
+    public double miny() { return Math.min(y1, y2); }
+    public double maxx() { return Math.max(x1, x2); }
+    public double maxy() { return Math.max(y1, y2); }
+    public double cx() { return (x1+x2)/2; }
+    public double cy() { return (y1+y2)/2; }
+    public double width() { return Math.abs(x2-x1); }
+    public double height() { return Math.abs(y2-y1); }
+
+    public void fill(G g) {
+        g.g.fill(new Rectangle2D.Double(minx(), miny(), width(), height()));
+    }
+    public void draw(G g) {
+        g.line(x1, y1, x1, y2);
+        g.line(x1, y2, x2, y2);
+        g.line(x2, y2, x2, y1);
+        g.line(x2, y1, x1, y1);
+    }
+
+    public boolean contains(P p) {
+        return p.x >= minx() && p.x < maxx() && p.y >= miny() && p.y < maxy();
+    }
+
+    public R plus(double minxplus, double minyplus, double maxxplus, double maxyplus) {
+        return new R(minx()+minxplus,
+                     miny()+minyplus,
+                     maxx()+maxxplus,
+                     maxy()+maxyplus);
+    }
+}
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