1 files changed, 143 insertions, 0 deletions
diff --git a/Tests/X11/HelloWorldX11.cxx b/Tests/X11/HelloWorldX11.cxx
new file mode 100644
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+++ b/Tests/X11/HelloWorldX11.cxx
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+
+/*** START MAIN.H ***/
+/* http://www.geocities.com/jeff_louie/x11/helloworld.htm* */
+/*
+ *  main.h
+ *  TestX
+ *
+ *  Created by Jeff Louie on Tue Feb 03 2004.
+ *  Copyright (c) 2004 __MyCompanyName__. All rights reserved.
+ *
+ */
+
+#ifndef MAIN_H
+#  define MAIN_H 1
+
+#  include <iostream>
+
+#  include <stdlib.h>
+
+/* include the X library headers */
+#  include <X11/Xlib.h>
+#  include <X11/Xos.h>
+#  include <X11/Xutil.h>
+
+class Main
+{
+
+public:
+  // constructor
+  Main(int argc, char* const argv[]);
+  // virtual ~Main();
+
+private:
+  /* here are our X variables */
+  Display* dis;
+  int screen;
+  Window win;
+  GC gc;
+
+  /* here are our X routines declared! */
+  void init_x();
+  void close_x();
+  void redraw();
+  int delay(int i);
+};
+
+#endif
+
+/*** END MAIN.H ***/
+
+/*** START MAIN.CPP ***/
+
+// modified from Brian Hammond's Howdy program at
+// http://www.insanityengine.com/doc/x11/xintro.html
+// jeff louie 02.05.2004
+
+int main(int argc, char* const argv[])
+{
+  Main m(argc, argv);
+  return 0;
+}
+
+// Main::~Main() {;};
+Main::Main(int argc, char* const argv[])
+{
+  XEvent event;   // XEvent declaration
+  KeySym key;     // KeyPress Events
+  char text[255]; // char buffer for KeyPress Events
+
+  init_x();
+
+  // event loop
+  while (1) {
+    // get the next event and stuff it into our event variable.
+    // Note:  only events we set the mask for are detected!
+    XNextEvent(dis, &event);
+
+    switch (event.type) {
+      int x;
+      int y;
+      case Expose:
+        if (event.xexpose.count == 0) {
+          redraw();
+        }
+        break;
+      case KeyPress:
+        if (XLookupString(&event.xkey, text, 255, &key, 0) == 1) {
+          // use the XLookupString routine to convert the invent
+          // KeyPress data into regular text.  Weird but necessary...
+          if ((text[0] == 'q') || (text[0] == 'Q')) {
+            close_x();
+          } else {
+            // echo key press
+            printf("You pressed the %c key!\n", text[0]);
+          }
+        }
+        break;
+      case ButtonPress:
+        // get cursor position
+        x = event.xbutton.x;
+        y = event.xbutton.y;
+        strcpy(text, "X is FUN!");
+        XSetForeground(dis, gc, rand() % event.xbutton.x % 255);
+        // draw text at cursor
+        XDrawString(dis, win, gc, x, y, text, strlen(text));
+        break;
+      default:
+        printf("Unhandled event.\n");
+    }
+  }
+}
+
+void Main::init_x()
+{
+  unsigned long black, white;
+
+  dis = XOpenDisplay(NULL);
+  screen = DefaultScreen(dis);
+  black = BlackPixel(dis, screen), white = WhitePixel(dis, screen);
+  win = XCreateSimpleWindow(dis, DefaultRootWindow(dis), 0, 0, 300, 300, 5,
+                            black, white);
+  XSetStandardProperties(dis, win, "Hello World", "Hi", None, NULL, 0, NULL);
+  XSelectInput(dis, win, ExposureMask | ButtonPressMask | KeyPressMask);
+  // get Graphics Context
+  gc = XCreateGC(dis, win, 0, 0);
+  XSetBackground(dis, gc, white);
+  XSetForeground(dis, gc, black);
+  XClearWindow(dis, win);
+  XMapRaised(dis, win);
+};
+
+void Main::close_x()
+{
+  XFreeGC(dis, gc);
+  XDestroyWindow(dis, win);
+  XCloseDisplay(dis);
+  exit(1);
+};
+
+void Main::redraw()
+{
+  XClearWindow(dis, win);
+};