Import sources from 2011-03-30 iso image

1 files changed, 63 insertions, 0 deletions

diff --git a/sys/src/9/bitsy/mouse.c b/sys/src/9/bitsy/mouse.c
new file mode 100755
index 000000000..f26607022
--- /dev/null
+++ b/sys/src/9/bitsy/mouse.c
@@ -0,0 +1,63 @@
+#include "u.h"
+#include "../port/lib.h"
+#include "mem.h"
+#include "dat.h"
+#include "fns.h"
+#include "../port/error.h"
+#include "io.h"
+
+#define	Image	IMAGE
+#include <draw.h>
+#include <memdraw.h>
+#include <cursor.h>
+#include "screen.h"
+
+enum {
+	Button1 = 0x1;
+	Button2 = 0x2;
+	Button3 = 0x4;
+};
+
+int		buttons;
+Point	position;
+
+static void
+mousevent(void) {
+	static int		curbuttons;
+	static Point	curposition;
+
+	if (buttons == curbuttons && eqpt(position, curposition))
+		return;
+
+	/* generate a mouse event */
+	curbuttons = buttons;
+	curposition = position;
+}
+
+void
+buttonevent(int event) {
+	switch (event) {
+	case 0x02:
+		/* Button 2 down */
+		buttons |= Button2;
+		mousevent();
+		break;
+	case 0x82:
+		/* Button 2 up */
+		buttons &= ~Button2;
+		mousevent();
+		break;
+	case 0x03:
+		/* Button 3 down */
+		buttons |= Button3;
+		mousevent();
+		break;
+	case 0x83:
+		/* Button 3 up */
+		buttons &= ~Button3;
+		mousevent();
+		break;
+	default:
+		/* other buttons */
+	}
+}