void getJavaGDPPI(NewDevDesc *dd, double *xpi, double *ypi) {
newJavaGDDesc *xd = (newJavaGDDesc *) dd->deviceSpecific;
JNIEnv *env = getJNIEnv();
jobject jo;
if (!env || !xd || !xd->talk) return;
*xpi = 96.0;
*ypi = 96.0;
jo = (*env)->CallObjectMethod(env, xd->talk, jmGDInterfaceGetPPI);
if (jo) {
jdouble *ac = (jdouble*)(*env)->GetDoubleArrayElements(env, jo, 0);
if (!ac) {
(*env)->DeleteLocalRef(env, jo);
gdWarning("getPPI: cant's get double*, using default");
return;
}
if (ac[0] > 0.0 && ac[1] > 0.0) {
*xpi = ac[0];
*ypi = ac[1];
}
(*env)->ReleaseDoubleArrayElements(env, jo, ac, 0);
(*env)->DeleteLocalRef(env, jo);
} else {
gdWarning("getPPI: method returned null, using default");
}
chkX(env);
}
static void newJavaGD_Size(double *left, double *right, double *bottom, double *top, NewDevDesc *dd)
{
newJavaGDDesc *xd = (newJavaGDDesc *) dd->deviceSpecific;
JNIEnv *env = getJNIEnv();
jmethodID mid;
if(!env || !xd || !xd->talk) return;
mid = (*env)->GetMethodID(env, xd->talkClass, "gdSize", "()[D");
if (mid) {
jobject o=(*env)->CallObjectMethod(env, xd->talk, mid);
if (o) {
jdouble *ac=(jdouble*)(*env)->GetDoubleArrayElements(env, o, 0);
if (!ac) {
(*env)->DeleteLocalRef(env, o);
gdWarning("gdSize: cant's get double*");
return;
}
*left=ac[0]; *right=ac[1]; *bottom=ac[2]; *top=ac[3];
(*env)->ReleaseDoubleArrayElements(env, o, ac, 0);
(*env)->DeleteLocalRef(env, o);
} else gdWarning("gdSize: gdSize returned null");
}
else gdWarning("gdSize: can't get mid ");
chkX(env);
}
void initJavaGD(newJavaGDDesc *xd, double *width, double *height, int *unit, double *xpi, double *ypi) {
JNIEnv *env = getJNIEnv();
jobject jo;
if(!env || !xd || !xd->talk) return;
jo = (*env)->CallObjectMethod(env, xd->talk, jmGDInterfaceInit,
(jdouble) *width, (jdouble) *height, (jint) *unit, (jdouble) *xpi, (jdouble) *ypi);
if (jo) {
jdouble *ac = (jdouble*)(*env)->GetDoubleArrayElements(env, jo, 0);
if (!ac) {
(*env)->DeleteLocalRef(env, jo);
gdWarning("gdInit: cant's get double*");
if (*unit != 1) {
*width = 672.0;
*height = 672.0;
}
return;
}
*width = ac[0];
*height = ac[1];
(*env)->ReleaseDoubleArrayElements(env, jo, ac, 0);
(*env)->DeleteLocalRef(env, jo);
} else {
gdWarning("gdInit: method returned null");
if (*unit != 1) {
*width = 672.0;
*height = 672.0;
}
}
chkX(env);
}
Rboolean newJavaGD_Open(NewDevDesc *dd, newJavaGDDesc *xd, const char *dsp, double w, double h)
{
if (initJavaGD(xd)) return FALSE;
xd->fill = 0xffffffff; /* transparent, was R_RGB(255, 255, 255); */
xd->col = R_RGB(0, 0, 0);
xd->canvas = R_RGB(255, 255, 255);
xd->windowWidth = w;
xd->windowHeight = h;
xd->holdlevel = 0;
{
JNIEnv *env = getJNIEnv();
jmethodID mid;
if(!env || !xd || !xd->talk) {
gdWarning("gdOpen: env, xd or talk is null");
return FALSE;
}
/* we're not using dsp atm! */
mid = (*env)->GetMethodID(env, xd->talkClass, "gdOpen", "(DD)V");
if (mid)
(*env)->CallVoidMethod(env, xd->talk, mid, w, h);
else {
gdWarning("gdOpen: can't get mid");
chkX(env);
return FALSE;
}
chkX(env);
}
return TRUE;
}
/** check changes in GC and issue corresponding commands if necessary */
static void sendGC(JNIEnv *env, newJavaGDDesc *xd, R_GE_gcontext *gc, int sendAll) {
jmethodID mid;
if (sendAll || gc->col != lastGC.col) {
mid = (*env)->GetMethodID(env, xd->talkClass, "gdcSetColor", "(I)V");
if (mid) (*env)->CallVoidMethod(env, xd->talk, mid, CONVERT_COLOR(gc->col));
else gdWarning("checkGC.gdcSetColor: can't get mid");
chkX(env);
}
if (sendAll || gc->fill != lastGC.fill) {
mid = (*env)->GetMethodID(env, xd->talkClass, "gdcSetFill", "(I)V");
if (mid) (*env)->CallVoidMethod(env, xd->talk, mid, CONVERT_COLOR(gc->fill));
else gdWarning("checkGC.gdcSetFill: can't get mid");
chkX(env);
}
if (sendAll || gc->lwd != lastGC.lwd || gc->lty != lastGC.lty) {
mid = (*env)->GetMethodID(env, xd->talkClass, "gdcSetLine", "(DI)V");
if (mid) (*env)->CallVoidMethod(env, xd->talk, mid, gc->lwd, gc->lty);
else gdWarning("checkGC.gdcSetLine: can't get mid");
chkX(env);
}
if (sendAll || gc->cex!=lastGC.cex || gc->ps!=lastGC.ps || gc->lineheight!=lastGC.lineheight || gc->fontface!=lastGC.fontface || strcmp(gc->fontfamily, lastGC.fontfamily)) {
jstring s = (*env)->NewStringUTF(env, gc->fontfamily);
mid = (*env)->GetMethodID(env, xd->talkClass, "gdcSetFont", "(DDDILjava/lang/String;)V");
if (mid) (*env)->CallVoidMethod(env, xd->talk, mid, gc->cex, gc->ps, gc->lineheight, gc->fontface, s);
else gdWarning("checkGC.gdcSetFont: can't get mid");
chkX(env);
}
memcpy(&lastGC, gc, sizeof(lastGC));
}
static void newJavaGD_Rect(double x0, double y0, double x1, double y1, R_GE_gcontext *gc, NewDevDesc *dd)
{
newJavaGDDesc *xd = (newJavaGDDesc *) dd->deviceSpecific;
JNIEnv *env = getJNIEnv();
jmethodID mid;
if(!env || !xd || !xd->talk) return;
checkGC(env,xd, gc);
mid = (*env)->GetMethodID(env, xd->talkClass, "gdRect", "(DDDD)V");
if (mid) (*env)->CallVoidMethod(env, xd->talk, mid, x0, y0, x1, y1);
else gdWarning("gdRect: can't get mid ");
chkX(env);
}
static void newJavaGD_Polyline(int n, double *x, double *y, R_GE_gcontext *gc, NewDevDesc *dd)
{
newJavaGDDesc *xd = (newJavaGDDesc *) dd->deviceSpecific;
JNIEnv *env = getJNIEnv();
jmethodID mid;
jarray xa, ya;
if(!env || !xd || !xd->talk) return;
checkGC(env, xd, gc);
xa = newDoubleArray(env, n, x);
if (!xa) return;
ya = newDoubleArray(env, n, y);
if (!ya) return;
mid = (*env)->GetMethodID(env, xd->talkClass, "gdPolyline", "(I[D[D)V");
if (mid) (*env)->CallVoidMethod(env, xd->talk, mid, n, xa, ya);
else gdWarning("gdPolyline: can't get mid ");
(*env)->DeleteLocalRef(env, xa);
(*env)->DeleteLocalRef(env, ya);
chkX(env);
}
Rboolean createJavaGD(newJavaGDDesc *xd) {
jclass jc = 0;
jobject jo = 0;
JNIEnv *env=getJNIEnv();
if (!jvm) {
initJVM(jarClassPath);
env=getJNIEnv();
}
if (!env) return FALSE;
char *customClass = getenv("RJGD_CLASS_NAME");
if (!customClass) {
//customClass = "org.rosuda.javaGD.JavaGD";
customClass = "de.walware.rj.server.gd.JavaGD";
}
if (!jcGDInterface) {
jclass jc = getJClass(env, "org.rosuda.javaGD.GDInterface", (RJ_ERROR_RERROR | RJ_GLOBAL_REF));
jmGDInterfaceActivate = getJMethod(env, jc, "gdActivate", "()V", RJ_ERROR_RERROR);
jmGDInterfaceCircle = getJMethod(env, jc, "gdCircle", "(DDD)V", RJ_ERROR_RERROR);
jmGDInterfaceClip = getJMethod(env, jc, "gdClip", "(DDDD)V", RJ_ERROR_RERROR);
jmGDInterfaceClose = getJMethod(env, jc, "gdClose", "()V", RJ_ERROR_RERROR);
jmGDInterfaceDeactivate = getJMethod(env, jc, "gdDeactivate", "()V", RJ_ERROR_RERROR);
jmGDInterfaceGetPPI = getJMethod(env, jc, "gdPPI", "()[D", RJ_ERROR_RERROR);
jmGDInterfaceInit = getJMethod(env, jc, "gdInit", "(DDIDD)[D", RJ_ERROR_RERROR);
jmGDInterfaceLocator = getJMethod(env, jc, "gdLocator", "()[D", RJ_ERROR_RERROR);
jmGDInterfaceLine = getJMethod(env, jc, "gdLine", "(DDDD)V", RJ_ERROR_RERROR);
jmGDInterfaceMetricInfo = getJMethod(env, jc, "gdMetricInfo", "(I)[D", RJ_ERROR_RERROR);
jmGDInterfaceMode = getJMethod(env, jc, "gdMode", "(I)V", RJ_ERROR_RERROR);
jmGDInterfaceNewPage = getJMethod(env, jc, "gdNewPage", "()V", RJ_ERROR_RERROR);
jmGDInterfaceNewPageConfirm = getJMethod(env, jc, "gdNewPageConfirm", "()Z", RJ_ERROR_RERROR);
jmGDInterfaceOpen = getJMethod(env, jc, "gdOpen", "(I)V", RJ_ERROR_RERROR);
jmGDInterfacePolygon = getJMethod(env, jc, "gdPolygon", "(I[D[D)V", RJ_ERROR_RERROR);
jmGDInterfacePolyline = getJMethod(env, jc, "gdPolyline", "(I[D[D)V", RJ_ERROR_RERROR);
jmGDInterfaceRect = getJMethod(env, jc, "gdRect", "(DDDD)V", RJ_ERROR_RERROR);
jmGDInterfaceSize = getJMethod(env, jc, "gdSize", "()[D", RJ_ERROR_RERROR);
jmGDInterfaceStrWidth = getJMethod(env, jc, "gdStrWidth", "(Ljava/lang/String;)D", RJ_ERROR_RERROR);
jmGDInterfaceText = getJMethod(env, jc, "gdText", "(DDLjava/lang/String;DD)V", RJ_ERROR_RERROR);
jmGDInterfaceSetColor = getJMethod(env, jc, "gdcSetColor", "(I)V", RJ_ERROR_RERROR);
jmGDInterfaceSetFill = getJMethod(env, jc, "gdcSetFill", "(I)V", RJ_ERROR_RERROR);
jmGDInterfaceSetLine = getJMethod(env, jc, "gdcSetLine", "(DI)V", RJ_ERROR_RERROR);
jmGDInterfaceSetFont = getJMethod(env, jc, "gdcSetFont", "(DDDILjava/lang/String;)V", RJ_ERROR_RERROR);
jcGDInterface = jc;
}
jc = getJClass(env, customClass, (RJ_ERROR_RERROR | RJ_GLOBAL_REF));
{ jmethodID jm = (*env)->GetMethodID(env, jc, "<init>", "()V");
if (!jm) {
(*env)->DeleteLocalRef(env, jc);
handleJError(env, RJ_ERROR_RERROR, "Cannot find default constructor for GD class '%s'.", customClass);
}
jo = (*env)->NewObject(env, jc, jm);
if (!jo) {
(*env)->DeleteLocalRef(env, jc);
handleJError(env, RJ_ERROR_RERROR, "Cannot instantiate object of GD class '%s'.", customClass);
}
}
xd->talk = (*env)->NewGlobalRef(env, jo);
(*env)->DeleteLocalRef(env, jo);
xd->talkClass = jc;
if (!xd->talk) {
chkX(env);
gdWarning("Rjgd_NewDevice: talk is null");
return FALSE;
}
return TRUE;
}
