/*
* Class: ch_heigvd_jpal_JPal
* Method: jpal_getSearchMethod
* Signature: ()I
*/
JNIEXPORT jint JNICALL Java_ch_heigvd_jpal_JPal_getSearchMethod
(JNIEnv *env, jobject obj) {
jclass cls = env->GetObjectClass (obj);
jfieldID fid = env->GetFieldID (cls, "pal_adr", "J");
Pal *pal = (Pal*) env->GetLongField (obj, fid);
SearchMethod method = pal->getSearch();
int return_value = -1;
switch (method) {
case POPMUSIC_TABU:
return_value = ch_heigvd_jpal_JPal_POPMUSIC_TABU;
break;
case POPMUSIC_CHAIN:
return_value = ch_heigvd_jpal_JPal_POPMUSIC_CHAIN;
break;
case POPMUSIC_TABU_CHAIN:
return_value = ch_heigvd_jpal_JPal_POPMUSIC_TABU_CHAIN;
break;
case CHAIN:
return_value = ch_heigvd_jpal_JPal_CHAIN;
break;
}
return return_value;
}
JNIEXPORT jobject JNICALL Java_ch_heigvd_jpal_JPal_getLayers
(JNIEnv *env, jobject obj) {
jclass cls = env->GetObjectClass (obj);
jfieldID fid = env->GetFieldID (cls, "pal_adr", "J");
Pal *pal = (Pal*) env->GetLongField (obj, fid);
std::list<Layer*> *layers = pal->getLayers();
jclass jpalLayer = env->FindClass ("ch/heigvd/jpal/JPalLayer");
jmethodID jpalLayerInit = env->GetMethodID (jpalLayer, "<init>", "()V");
jfieldID jpalLayerAdr = env->GetFieldID (jpalLayer, "pal_layer_adr", "J");
jclass listClass = env->FindClass ("java/util/LinkedList");
jmethodID listInit = env->GetMethodID (listClass, "<init>", "()V");
jmethodID listAdd = env->GetMethodID (listClass, "add", "(Ljava/lang/Object;)Z");
jobject jlist = env->NewObject (listClass, listInit);
for (std::list<Layer*>::iterator it = layers->begin();it != layers->end();it++) {
// Create a JPalLayer and set jpallayer_adr to (long)layer*
jobject jpalLayerObj = env->NewObject (jpalLayer, jpalLayerInit);
env->SetLongField (jpalLayerObj, jpalLayerAdr, (long) (*it));
// add layer into jlist
env->CallBooleanMethod (jlist, listAdd, jpalLayerObj);
}
env->DeleteLocalRef (listClass);
env->DeleteLocalRef (jpalLayer);
return jlist;
}
JNIEXPORT jint JNICALL Java_ch_heigvd_jpal_JPal_getPolyP
(JNIEnv *env, jobject obj) {
jclass cls = env->GetObjectClass (obj);
jfieldID fid = env->GetFieldID (cls, "pal_adr", "J");
Pal *pal = (Pal*) env->GetLongField (obj, fid);
return pal->getPolyP();
}
/*
* Class: ch_heigvd_jpal_JPal
* Method: jpal_removeLayer
* Signature: (Ljava/lang/String;)V;
*/
JNIEXPORT void JNICALL Java_ch_heigvd_jpal_JPal_removeLayer
(JNIEnv * env, jobject obj, jstring lyrName) {
jclass cls = env->GetObjectClass (obj);
jfieldID fid = env->GetFieldID (cls, "pal_adr", "J");
Pal *pal = (Pal*) env->GetLongField (obj, fid);
const char *name = env->GetStringUTFChars (lyrName, NULL);
pal->removeLayer (pal->getLayer (name));
}
JNIEXPORT void JNICALL Java_ch_heigvd_jpal_JPal_setPolyP
(JNIEnv *env, jobject obj, jint polyp) {
if (polyp <= 0)
return;
jclass cls = env->GetObjectClass (obj);
jfieldID fid = env->GetFieldID (cls, "pal_adr", "J");
Pal *pal = (Pal*) env->GetLongField (obj, fid);
pal->setPolyP (polyp);
}
bool filteringCallback( FeaturePart *featurePart, void *ctx )
{
RTree<LabelPosition *, double, 2, double> *cdtsIndex = ( reinterpret_cast< FilterContext * >( ctx ) )->cdtsIndex;
Pal *pal = ( reinterpret_cast< FilterContext * >( ctx ) )->pal;
if ( pal->isCanceled() )
return false; // do not continue searching
double amin[2], amax[2];
featurePart->getBoundingBox( amin, amax );
LabelPosition::PruneCtx pruneContext;
pruneContext.obstacle = featurePart;
pruneContext.pal = pal;
cdtsIndex->Search( amin, amax, LabelPosition::pruneCallback, static_cast< void * >( &pruneContext ) );
return true;
}
bool filteringCallback( PointSet *pset, void *ctx )
{
RTree<LabelPosition*, double, 2, double> *cdtsIndex = (( FilterContext* ) ctx )->cdtsIndex;
double scale = (( FilterContext* ) ctx )->scale;
Pal* pal = (( FilterContext* )ctx )->pal;
if ( pal->isCancelled() )
return false; // do not continue searching
double amin[2], amax[2];
pset->getBoundingBox( amin, amax );
LabelPosition::PruneCtx pruneContext;
pruneContext.scale = scale;
pruneContext.obstacle = pset;
pruneContext.pal = pal;
cdtsIndex->Search( amin, amax, LabelPosition::pruneCallback, ( void* ) &pruneContext );
return true;
}
/*
* Class: ch_heigvd_jpal_JPal
* Method: jpal_setSearchMethod
* Signature: (I)V
*/
JNIEXPORT void JNICALL Java_ch_heigvd_jpal_JPal_setSearchMethod
(JNIEnv *env, jobject obj, jint method) {
jclass cls = env->GetObjectClass (obj);
jfieldID fid = env->GetFieldID (cls, "pal_adr", "J");
Pal *pal = (Pal*) env->GetLongField (obj, fid);
switch (method) {
case ch_heigvd_jpal_JPal_POPMUSIC_TABU:
pal->setSearch (POPMUSIC_TABU);
break;
case ch_heigvd_jpal_JPal_POPMUSIC_CHAIN:
pal->setSearch (POPMUSIC_CHAIN);
break;
case ch_heigvd_jpal_JPal_POPMUSIC_TABU_CHAIN:
pal->setSearch (POPMUSIC_TABU_CHAIN);
break;
case ch_heigvd_jpal_JPal_CHAIN:
pal->setSearch (CHAIN);
break;
}
}
JNIEXPORT jobject JNICALL Java_ch_heigvd_jpal_JPal_getLayer
(JNIEnv *env, jobject obj, jstring layerName) {
jclass cls = env->GetObjectClass (obj);
jfieldID fid = env->GetFieldID (cls, "pal_adr", "J");
Pal *pal = (Pal*) env->GetLongField (obj, fid);
const char *name = env->GetStringUTFChars (layerName, NULL);
Layer * layer = pal->getLayer (name);
// Create a JPalLayer and put jpallayer_adr to (long)layer*
jclass jpalLayer = env->FindClass ("ch/heigvd/jpal/JPalLayer");
jmethodID jpalLayerInit = env->GetMethodID (jpalLayer, "<init>", "()V");
jfieldID jpalLayerAdr = env->GetFieldID (jpalLayer, "pal_layer_adr", "J");
jobject jpalLayerObj = env->NewObject (jpalLayer, jpalLayerInit);
std::cout << "JNI_WRAP: layer adr: " << layer << std::endl;
env->SetLongField (jpalLayerObj, jpalLayerAdr, (long) layer);
return jpalLayerObj;
}
QgsPalLabeling::QgsPalLabeling()
: mMapRenderer( NULL ), mPal( NULL )
{
// find out engine defaults
Pal p;
mCandPoint = p.getPointP();
mCandLine = p.getLineP();
mCandPolygon = p.getPolyP();
switch ( p.getSearch() )
{
case CHAIN: mSearch = Chain; break;
case POPMUSIC_TABU: mSearch = Popmusic_Tabu; break;
case POPMUSIC_CHAIN: mSearch = Popmusic_Chain; break;
case POPMUSIC_TABU_CHAIN: mSearch = Popmusic_Tabu_Chain; break;
case FALP: mSearch = Falp; break;
}
mShowingCandidates = false;
mShowingAllLabels = false;
mLabelSearchTree = new QgsLabelSearchTree();
}
JNIEXPORT jobject JNICALL Java_ch_heigvd_jpal_JPal_addLayer
(JNIEnv *env, jobject obj, jstring name, jdouble min_scale, jdouble max_scale , jint arrange, jint unit, jdouble priority, jboolean obstacle, jboolean active, jboolean toLabel) {
jclass cls = env->GetObjectClass (obj);
jfieldID fid = env->GetFieldID (cls, "pal_adr", "J");
Pal *pal = (Pal*) env->GetLongField (obj, fid);
std::cout << "JNI_WRAP: pal:" << pal << std::endl;
const char *layerName = env->GetStringUTFChars (name, NULL);
Arrangement ar;
Units un;
switch (unit) {
case ch_heigvd_jpal_JPal_UNIT_PIXEL:
un = PIXEL;
break;
case ch_heigvd_jpal_JPal_UNIT_METER:
un = METER;
break;
default:
un = PIXEL;
break;
}
switch (arrange) {
case ch_heigvd_jpal_JPal_P_LINE:
ar = P_LINE;
break;
case ch_heigvd_jpal_JPal_P_LINE_AROUND:
ar = P_LINE_AROUND;
break;
case ch_heigvd_jpal_JPal_P_POINT:
ar = P_POINT;
break;
case ch_heigvd_jpal_JPal_P_HORIZ:
ar = P_HORIZ;
break;
case ch_heigvd_jpal_JPal_P_FREE:
default:
ar = P_FREE;
break;
}
Layer *new_layer = pal->addLayer (layerName, min_scale, max_scale, ar, un, priority, obstacle, active, toLabel);
std::cout << "JNI_WRAP: Layer added" << std::endl;
// Create a JPalLayer and put jpallayer_adr to (long)layer*
jclass jpalLayer = env->FindClass ("ch/heigvd/jpal/JPalLayer");
jmethodID jpalLayerInit = env->GetMethodID (jpalLayer, "<init>", "()V");
jfieldID palLayerAdr = env->GetFieldID (jpalLayer, "pal_layer_adr", "J");
jobject jpalLayerObj = env->NewObject (jpalLayer, jpalLayerInit);
std::cout << "JNI_WRAP: layer adr: " << new_layer << std::endl;
env->SetLongField (jpalLayerObj, palLayerAdr, (long) new_layer);
return jpalLayerObj;
}
JNIEXPORT jobject JNICALL Java_ch_heigvd_jpal_JPal_labeller
(JNIEnv *env, jobject obj, jobjectArray layers, jdoubleArray layersFactor, jdouble scale, jdoubleArray bbox, jobjectArray jstats, jboolean displayAll) {
std::cout << "Env (labeller): " << env << std::endl;
std::cout << "obj (labeller): " << obj << std::endl;
int i;
const char *str;
char **layersN;
double *layersF;
int nbLayer = env->GetArrayLength (layers);
double bounding_box[4];
jclass cls = env->GetObjectClass (obj);
jfieldID fid = env->GetFieldID (cls, "pal_adr", "J");
Pal *pal = (Pal*) env->GetLongField (obj, fid);
layersN = new char*[nbLayer];
layersF = new double[nbLayer];
//str = env->GetStringUTFChars(name, NULL);
//env->ReleaseStringUTFChars(name, str);
env->GetDoubleArrayRegion (bbox, 0, 4, bounding_box);
env->GetDoubleArrayRegion (layersFactor, 0, nbLayer, layersF);
for (i = 0;i < nbLayer;i++) {
jstring jstr = (jstring) env->GetObjectArrayElement (layers, i);
str = env->GetStringUTFChars (jstr, NULL);
layersN[i] = new char[strlen (str) +1];
strcpy (layersN[i], str);
std::cout << "JNI_WRAP: Layers " << i << " : " << layersN[i] << " (" << layersF[i] << ")" << std::endl;
env->ReleaseStringUTFChars (jstr, str);
env->DeleteLocalRef (jstr);
}
std::cout << "JNI_WRAP: Labeller is going to run:" << std::endl;
PalStat * stats;
std::list<Label*> *solList = pal->labeller (nbLayer, layersN, layersF, scale, bounding_box, &stats, displayAll);
std::cout << "JNI_WRAP: Labelling done... translate stats..." << std::endl;
int nbLayers = stats->getNbLayers();
jclass stringClass = env->FindClass ("java/lang/String");
jobjectArray lyrsNames = env->NewObjectArray (nbLayers, stringClass, NULL);
jintArray nbLyrObjs = env->NewIntArray (nbLayers);
jintArray nbLyrLObjs = env->NewIntArray (nbLayers);
jint *lnbo = new jint[nbLayers];
jint *lnblo = new jint[nbLayers];
int k;
for (k = 0;k < nbLayers;k++) {
env->SetObjectArrayElement (lyrsNames, k, env->NewStringUTF (stats->getLayerName (k)));
lnbo[k] = stats->getLayerNbObjects (k);
lnblo[k] = stats->getLayerNbLabelledObjects (k);
}
env->SetIntArrayRegion (nbLyrObjs, 0, nbLayers, lnbo);
env->SetIntArrayRegion (nbLyrLObjs, 0, nbLayers, lnblo);
delete[] lnbo;
delete[] lnblo;
jclass jpalStatClass = env->FindClass ("ch/heigvd/jpal/JPalStat");
jmethodID jpalStatSet = env->GetMethodID (jpalStatClass, "set", "(II[Ljava/lang/String;[I[I)V");
env->CallVoidMethod (jstats,
jpalStatSet, stats->getNbObjects(), stats->getNbLabelledObjects(), lyrsNames, nbLyrObjs, nbLyrLObjs); //env->NewObject(jpalStatClass, jpalStatInit,
env->DeleteLocalRef (lyrsNames);
env->DeleteLocalRef (nbLyrObjs);
env->DeleteLocalRef (nbLyrLObjs);
delete stats;
std::cout << "JNI_WRAP: Labelling is finished" << std::endl;
jclass listClass;
jclass labelClass;
jmethodID listInit;
jmethodID listAdd;
jmethodID labelInit;
listClass = env->FindClass ("java/util/LinkedList");
labelClass = env->FindClass ("ch/heigvd/jpal/JPalLabel");
listInit = env->GetMethodID (listClass, "<init>", "()V");
listAdd = env->GetMethodID (listClass, "add", "(Ljava/lang/Object;)Z");
labelInit = env->GetMethodID (labelClass, "<init>", "(DDDLjava/lang/String;Ljava/lang/String;)V");
jstring layerName;
jstring featID;
jobject jlist = env->NewObject (listClass, listInit);
//jobject jlabel;
Label *label;
for (std::list<Label*>::iterator it = solList->begin(); it != solList->end();it++) {
label = *it;
layerName = env->NewStringUTF (label->getLayerName());
featID = env->NewStringUTF (label->getFeatureId());
env->CallBooleanMethod (jlist, listAdd, env->NewObject (labelClass, labelInit, label->getOrigX(), label->getOrigY(), label->getRotation(), layerName, featID));
//std::cout << "Identifier: " << label->getLayerName() << "/" << label->getFeatureId() << std::endl;
// std::cout << "coord:" << label->getOrigX() << " " << label->getOrigY() << std::endl;
// std::cout << "alpha: " << label->getRotation() << std::endl << std::endl;
delete label;
}
env->DeleteLocalRef (listClass);
env->DeleteLocalRef (labelClass);
return jlist;
}
JNIEXPORT jobject JNICALL Java_ch_heigvd_jpal_JPal_labeller_1all
(JNIEnv *env, jobject obj, jdouble scale, jdoubleArray bbox, jobjectArray jstats, jboolean displayAll) {
std::cout << "JNI_WRAP: Labeller_all" << std::endl;
double bounding_box[4];
jclass cls = env->GetObjectClass (obj);
jfieldID fid = env->GetFieldID (cls, "pal_adr", "J");
Pal *pal = (Pal*) env->GetLongField (obj, fid);
env->GetDoubleArrayRegion (bbox, 0, 4, bounding_box);
std::cout << "JNI_WRAP: Labeller is going to run:" << std::endl;
PalStat *stats;
std::cout << "JNI_WRAP displayAll:" << displayAll << std::endl;
std::list<Label*> *solList = pal->labeller (scale, bounding_box, &stats, displayAll);
std::cout << "JNI_WRAP: Labelling done... translate stats..." << std::endl;
int nbLayers;
nbLayers = stats->getNbLayers();
jclass stringClass = env->FindClass ("java/lang/String");
jobjectArray lyrsNames = env->NewObjectArray (nbLayers, stringClass, NULL);
jintArray nbLyrObjs = env->NewIntArray (nbLayers);
jintArray nbLyrLObjs = env->NewIntArray (nbLayers);
jint *lnbo = new jint[nbLayers];
jint *lnblo = new jint[nbLayers];
int k;
for (k = 0;k < nbLayers;k++) {
env->SetObjectArrayElement (lyrsNames, k, env->NewStringUTF (stats->getLayerName (k)));
lnbo[k] = stats->getLayerNbObjects (k);
lnblo[k] = stats->getLayerNbLabelledObjects (k);
}
env->SetIntArrayRegion (nbLyrObjs, 0, nbLayers, lnbo);
env->SetIntArrayRegion (nbLyrLObjs, 0, nbLayers, lnblo);
delete[] lnbo;
delete[] lnblo;
jclass jpalStatClass = env->FindClass ("ch/heigvd/jpal/JPalStat");
jmethodID jpalStatSet = env->GetMethodID (jpalStatClass, "set", "(II[Ljava/lang/String;[I[I)V");
env->CallVoidMethod (jstats,
jpalStatSet, stats->getNbObjects(), stats->getNbLabelledObjects(), lyrsNames, nbLyrObjs, nbLyrLObjs); //env->NewObject(jpalStatClass, jpalStatInit,
env->DeleteLocalRef (lyrsNames);
env->DeleteLocalRef (nbLyrObjs);
env->DeleteLocalRef (nbLyrLObjs);
delete stats;
std::cout << "JNI_WRAP: Labelling is finished" << std::endl;
jclass listClass;
jclass labelClass;
jmethodID listInit;
jmethodID listAdd;
jmethodID labelInit;
listClass = env->FindClass ("java/util/LinkedList");
labelClass = env->FindClass ("ch/heigvd/jpal/JPalLabel");
listInit = env->GetMethodID (listClass, "<init>", "()V");
listAdd = env->GetMethodID (listClass, "add", "(Ljava/lang/Object;)Z");
labelInit = env->GetMethodID (labelClass, "<init>", "(DDDLjava/lang/String;Ljava/lang/String;)V");
jstring layerName;
jstring featID;
jobject jlist = env->NewObject (listClass, listInit);
//jobject jlabel;
Label *label;
for (std::list<Label*>::iterator it = solList->begin(); it != solList->end();it++) {
label = *it;
layerName = env->NewStringUTF (label->getLayerName());
featID = env->NewStringUTF (label->getFeatureId());
env->CallBooleanMethod (jlist, listAdd, env->NewObject (labelClass, labelInit, label->getOrigX(), label->getOrigY(), label->getRotation(), layerName, featID));
delete label;
}
env->DeleteLocalRef (listClass);
env->DeleteLocalRef (labelClass);
return jlist;
}
