1 files changed, 132 insertions, 0 deletions
diff --git a/libjava/gnu/gcj/xlib/natDisplay.cc b/libjava/gnu/gcj/xlib/natDisplay.cc
new file mode 100644
index 000000000..f89cb740c
--- /dev/null
+++ b/libjava/gnu/gcj/xlib/natDisplay.cc
@@ -0,0 +1,132 @@
+/* Copyright (C) 1999, 2000  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <X11/Xproto.h>
+#include <X11/Xlib.h>
+#include <stdio.h>
+
+#include <java/lang/System.h>
+#include <java/lang/RuntimeException.h>
+#include <java/io/PrintStream.h>
+#include <gcj/cni.h>
+
+#include <gnu/gcj/xlib/Display.h>
+#include <gnu/gcj/xlib/XConnectException.h>
+#include <gnu/gcj/xlib/XException.h>
+
+void gnu::gcj::xlib::Display::init()
+{
+  ::Display* openedDisplay = XOpenDisplay(0); // default display
+  
+  if (openedDisplay == 0) {
+    jstring msg = JvNewStringLatin1("Unable to open display");
+    throw new gnu::gcj::xlib::XConnectException(msg);
+  }
+  
+  display = reinterpret_cast<gnu::gcj::RawData*>(openedDisplay); 
+}
+
+void gnu::gcj::xlib::Display::finalize()
+{
+  if (display == 0) return;
+  ::Display* dpy = (::Display*) display;
+  XCloseDisplay(dpy);
+}
+
+jint gnu::gcj::xlib::Display::getDefaultScreenNumber()
+{
+  ::Display* dpy = (::Display*) display;
+  return DefaultScreen(dpy);
+}
+
+jint gnu::gcj::xlib::Display::getDefaultRootWindowXID()
+{
+  ::Display* dpy = (::Display*) display;
+  return DefaultRootWindow(dpy);
+}
+
+jint gnu::gcj::xlib::Display::internAtom(jstring name)
+{
+  ::Display* dpy = (::Display*) display;
+  int len = JvGetStringUTFLength(name);
+  char cName[len+1];
+  JvGetStringUTFRegion(name, 0, name->length(), cName);
+  cName[len] = '\0';
+  bool onlyIfExists = false;
+  return XInternAtom(dpy, cName, onlyIfExists);
+}
+
+jstring gnu::gcj::xlib::Display::getAtomName(jint atom)
+{
+  ::Display* dpy = (::Display*) display;
+  char* cName = XGetAtomName(dpy, atom);
+  jstring name = JvNewStringLatin1(cName);
+  XFree(cName);
+  return name;
+}
+
+static int handleXError(Display* dpy, XErrorEvent* xee)
+{
+  const int ERROR_TEXT_LENGTH = 256;
+  char errorText[ERROR_TEXT_LENGTH];
+  XGetErrorText(dpy, xee->error_code, errorText, ERROR_TEXT_LENGTH);
+  int requestCode = xee->request_code;
+  
+  if (requestCode == X_GetImage)
+    {
+      /* The current implementation of Drawable.copyIntoXImage()
+	 will generate harmless X_GetImage errors if the initially
+	 requested area is not completly within the drawable. Until
+	 we find a better solution, simply ignore these errors. */
+      return 0;
+    }
+
+  java::lang::System::err->print(JvNewStringLatin1("X error: "));
+  java::lang::System::err->print(JvNewStringLatin1(errorText));
+  java::lang::System::err->print(JvNewStringLatin1(", serial="));
+  java::lang::System::err->print((jlong) xee->serial);
+  java::lang::System::err->print(JvNewStringLatin1(", requestCode="));
+  java::lang::System::err->print((jint) requestCode);
+  
+  if (requestCode < 128)
+    {
+      char number[8];
+      snprintf(number, 8, "%d", requestCode);
+      number[7] = '\0';
+
+      XGetErrorDatabaseText(dpy, "XRequest", number,
+			    "", errorText, ERROR_TEXT_LENGTH);
+      java::lang::System::err->print(JvNewStringLatin1(" ("));
+      java::lang::System::err->print(JvNewStringLatin1(errorText));
+      java::lang::System::err->print(JvNewStringLatin1(")"));
+    }
+
+  java::lang::System::err->print(JvNewStringLatin1(", minorCode="));
+  java::lang::System::err->print((jint) xee->minor_code);
+  java::lang::System::err->print(JvNewStringLatin1(", XID="));
+  java::lang::System::err->println((jlong) xee->resourceid);
+  
+  return 0;
+}
+
+void gnu::gcj::xlib::Display::staticInit()
+{
+  if (XInitThreads() == 0)
+    {
+      char msg[] = "threads are not supported on this platform";
+      throw new ::java::lang::RuntimeException(JvNewStringLatin1(msg));
+    }
+  
+  XSetErrorHandler(&handleXError);
+}
+
+void gnu::gcj::xlib::Display::flush() 
+{
+  ::Display* dpy = (::Display*) display;
+  XFlush(dpy);
+}