#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);
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)
{
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 is 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);
}