/// Sets up a ScrollView window, depending on the constructor variables.
void ScrollView::Initialize(const char* name, int x_pos, int y_pos, int x_size,
int y_size, int x_canvas_size, int y_canvas_size,
bool y_axis_reversed, const char* server_name) {
// If this is the first ScrollView Window which gets created, there is no
// network connection yet and we have to set it up in a different thread.
if (stream_ == nullptr) {
nr_created_windows_ = 0;
stream_ = new SVNetwork(server_name, kSvPort);
waiting_for_events_mu = new SVMutex();
svmap_mu = new SVMutex();
SendRawMessage(
"svmain = luajava.bindClass('com.google.scrollview.ScrollView')\n");
SVSync::StartThread(MessageReceiver, nullptr);
}
// Set up the variables on the clientside.
nr_created_windows_++;
event_handler_ = nullptr;
event_handler_ended_ = false;
y_axis_is_reversed_ = y_axis_reversed;
y_size_ = y_canvas_size;
window_name_ = name;
window_id_ = nr_created_windows_;
// Set up polygon buffering.
points_ = new SVPolyLineBuffer;
points_->empty = true;
svmap_mu->Lock();
svmap[window_id_] = this;
svmap_mu->Unlock();
for (int i = 0; i < SVET_COUNT; i++) {
event_table_[i] = nullptr;
}
mutex_ = new SVMutex();
semaphore_ = new SVSemaphore();
// Set up an actual Window on the client side.
char message[kMaxMsgSize];
snprintf(message, sizeof(message),
"w%u = luajava.newInstance('com.google.scrollview.ui"
".SVWindow','%s',%u,%u,%u,%u,%u,%u,%u)\n",
window_id_, window_name_, window_id_,
x_pos, y_pos, x_size, y_size, x_canvas_size, y_canvas_size);
SendRawMessage(message);
SVSync::StartThread(StartEventHandler, this);
}
// Send the current buffered polygon (if any) and clear it.
void ScrollView::SendPolygon() {
if (!points_->empty) {
points_->empty = true; // Allows us to use SendMsg.
int length = points_->xcoords.size();
// length == 1 corresponds to 2 SetCursors in a row and only the
// last setCursor has any effect.
if (length == 2) {
// An isolated line!
SendMsg("drawLine(%d,%d,%d,%d)",
points_->xcoords[0], points_->ycoords[0],
points_->xcoords[1], points_->ycoords[1]);
} else if (length > 2) {
// A polyline.
SendMsg("createPolyline(%d)", length);
char coordpair[kMaxIntPairSize];
std::string decimal_coords;
for (int i = 0; i < length; ++i) {
snprintf(coordpair, kMaxIntPairSize, "%d,%d,",
points_->xcoords[i], points_->ycoords[i]);
decimal_coords += coordpair;
}
decimal_coords += '\n';
SendRawMessage(decimal_coords.c_str());
SendMsg("drawPolyline()");
}
points_->xcoords.clear();
points_->ycoords.clear();
}
}
already_AddRefed<Promise> JSWindowActor::SendQuery(
JSContext* aCx, const nsAString& aMessageName, JS::Handle<JS::Value> aObj,
JS::Handle<JS::Value> aTransfers, ErrorResult& aRv) {
ipc::StructuredCloneData data;
if (!aObj.isUndefined() && !nsFrameMessageManager::GetParamsForMessage(
aCx, aObj, aTransfers, data)) {
aRv.Throw(NS_ERROR_DOM_DATA_CLONE_ERR);
return nullptr;
}
nsIGlobalObject* global = xpc::CurrentNativeGlobal(aCx);
if (NS_WARN_IF(!global)) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
RefPtr<Promise> promise = Promise::Create(global, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
JSWindowActorMessageMeta meta;
meta.actorName() = mName;
meta.messageName() = aMessageName;
meta.queryId() = mNextQueryId++;
meta.kind() = JSWindowActorMessageKind::Query;
mPendingQueries.Put(meta.queryId(), promise);
SendRawMessage(meta, std::move(data), aRv);
return promise.forget();
}
// Sends for each pixel either '1' or '0'.
void ScrollView::TransferGrayImage(PIX* image) {
char* pixel_data = new char[image->w * 2 + 2];
for (int y = 0; y < image->h; y++) {
l_uint32* data = pixGetData(image) + y * pixGetWpl(image);
for (int x = 0; x < image->w; x++) {
snprintf(&pixel_data[x*2], 2, "%.2x", (GET_DATA_BYTE(data, x)));
pixel_data[image->w * 2] = '\n';
pixel_data[image->w * 2 + 1] = '\0';
SendRawMessage(pixel_data);
}
}
delete [] pixel_data;
}
// Sends for each pixel either '1' or '0'.
void ScrollView::TransferBinaryImage(PIX* image) {
char* pixel_data = new char[image->w + 2];
for (int y = 0; y < image->h; y++) {
l_uint32* data = pixGetData(image) + y * pixGetWpl(image);
for (int x = 0; x < image->w; x++) {
if (GET_DATA_BIT(data, x))
pixel_data[x] = '1';
else
pixel_data[x] = '0';
}
pixel_data[image->w] = '\n';
pixel_data[image->w + 1] = '\0';
SendRawMessage(pixel_data);
}
delete [] pixel_data;
}
void JSWindowActor::SendAsyncMessage(JSContext* aCx,
const nsAString& aMessageName,
JS::Handle<JS::Value> aObj,
JS::Handle<JS::Value> aTransfers,
ErrorResult& aRv) {
ipc::StructuredCloneData data;
if (!aObj.isUndefined() && !nsFrameMessageManager::GetParamsForMessage(
aCx, aObj, aTransfers, data)) {
aRv.Throw(NS_ERROR_DOM_DATA_CLONE_ERR);
return;
}
JSWindowActorMessageMeta meta;
meta.actorName() = mName;
meta.messageName() = aMessageName;
meta.kind() = JSWindowActorMessageKind::Message;
SendRawMessage(meta, std::move(data), aRv);
}
// Sends each pixel as hex value like html, e.g. #00FF00 for green.
void ScrollView::Transfer32bppImage(PIX* image) {
int ppL = pixGetWidth(image);
int h = pixGetHeight(image);
int wpl = pixGetWpl(image);
int transfer_size= ppL * 7 + 2;
char* pixel_data = new char[transfer_size];
for (int y = 0; y < h; ++y) {
l_uint32* data = pixGetData(image) + y*wpl;
for (int x = 0; x < ppL; ++x, ++data) {
snprintf(&pixel_data[x*7], 7, "#%.2x%.2x%.2x",
GET_DATA_BYTE(data, COLOR_RED),
GET_DATA_BYTE(data, COLOR_GREEN),
GET_DATA_BYTE(data, COLOR_BLUE));
}
pixel_data[transfer_size - 2] = '\n';
pixel_data[transfer_size - 1] = '\0';
SendRawMessage(pixel_data);
}
delete[] pixel_data;
}
// Send an image of type Pix.
void ScrollView::Image(struct Pix* image, int x_pos, int y_pos) {
l_uint8* data;
size_t size;
pixWriteMem(&data, &size, image, IFF_PNG);
int base64_len = (size + 2) / 3 * 4;
y_pos = TranslateYCoordinate(y_pos);
SendMsg("readImage(%d,%d,%d)", x_pos, y_pos, base64_len);
// Base64 encode the data.
const char kBase64Table[64] = {
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
'w', 'x', 'y', 'z', '0', '1', '2', '3',
'4', '5', '6', '7', '8', '9', '+', '/',
};
char* base64 = new char[base64_len + 1];
memset(base64, '=', base64_len);
base64[base64_len] = '\0';
int remainder = 0;
int bits_left = 0;
int code_len = 0;
for (size_t i = 0; i < size; ++i) {
int code = (data[i] >> (bits_left + 2)) | remainder;
base64[code_len++] = kBase64Table[code & 63];
bits_left += 2;
remainder = data[i] << (6 - bits_left);
if (bits_left == 6) {
base64[code_len++] = kBase64Table[remainder & 63];
bits_left = 0;
remainder = 0;
}
}
if (bits_left > 0)
base64[code_len++] = kBase64Table[remainder & 63];
SendRawMessage(base64);
delete [] base64;
lept_free(data);
}
// Exit the client completely (and notify the server of it).
void ScrollView::Exit() {
SendRawMessage("svmain:exit()");
exit(0);
}
void Bot::SendMessage(const QString& receiver, const char *message)
{
QString msg = "PRIVMSG " + receiver + " :" + message;
SendRawMessage(msg);
}
