ConfigRect ConfigManager::parseRect(){
ConfigRect r;
r.x = tok.getnextint(); // either just x,y..
tok.getnextcheck(T_COMMA);
r.y = tok.getnextint();
if(tok.getnext()==T_COMMA){ // or x,y,w,h
r.w = tok.getnextint();
tok.getnextcheck(T_COMMA);
r.h = tok.getnextint();
}else{
tok.rewind();
r.w = 1; r.h = 1;
}
if(tok.getnext() == T_SIZE){
r.minsizex = tok.getnextint();
if(tok.getnext()==T_COMMA){
r.minsizey = tok.getnextint();
}else{
r.minsizey = r.minsizex;
tok.rewind();
}
}else
tok.rewind();
return r;
}
DataBuffer<float> *ConfigManager::parseFloatSource(){
DataBuffer<float> *b;
char buf[256];
switch(tok.getnext()){
case T_VAR:
tok.getnextident(buf);
b = DataManager::findFloatBuffer(buf);
if(!b)
throw ParseException(&tok).set("undefined variable '%s'",buf);
break;
case T_EXPR:
tok.getnextstring(buf);
// OK, we're going to lose a reference to this, but such is life.
// In this version we never delete expressions anyway.
try {
b = (new Expression(buf))->buffer;
} catch(Exception& e){
throw Exception(e,tok.getline());
}
// now parse the extra bits
tok.getnextcheck(T_RANGE);
float mn,mx;
switch(tok.getnext()){
case T_INT:
case T_FLOAT:
mn = tok.getfloat();
tok.getnextcheck(T_TO);
mx = tok.getnextfloat();
b->setMinMax(mn,mx);
break;
case T_AUTO:
b->setAutoRange();
break;
default:
throw UnexpException(&tok,"expected number or 'auto'");
}
break;
default:
throw UnexpException(&tok,"'var' or 'expr'");
}
return b;
}
static void parseVars(){
tok.getnextcheck(T_OCURLY);
for(;;){
int t = tok.getnext();
switch(t){
case T_DIAMOND:
// diamond variables
#if !DIAMOND
throw ParseException(&tok,"diamond not supported in this build");
#else
if(!diamondapparatus::isRunning()){
diamondapparatus::init();
}
switch(t=tok.getnext()){
case T_NAMEFLOAT:
parseAVar(true);
break;
case T_LINKED:
parseLinkedVars(true);
break;
default:
throw UnexpException(&tok,"'float' or 'linked'");
break;
}
#endif
break;
case T_NAMEFLOAT:
parseAVar(false);
break;
case T_BOOL:
throw ParseException(&tok,"bools not currently supported");
break;
case T_LINKED:
parseLinkedVars(false);
break;
case T_CCURLY:
return;
default:printf("%d\n",tok.getcurrent());
throw UnexpException(&tok);
}
}
}
QColor ConfigManager::parseColour(QColor deflt){
QColor c;
switch(tok.getnext()){
case T_IDENT:
case T_STRING:
c = QColor(tok.getstring());
return c;
break;
case T_DEFAULT:
return deflt;
default:
throw UnexpException(&tok,"colour name or \"#rgb\"");
}
}
NudgeType ConfigManager::parseNudgeType(){
switch(tok.getnext()){
case T_UP:
return UP;
case T_DOWN:
return DOWN;
case T_MIN:
return MIN;
case T_MAX:
return MAX;
case T_CENTRE:
return CENTRE;
default:
throw UnexpException(&tok,"nudge type (up, down, centre)");
}
}
static void parseContainer(QWidget *parent){
// now start reading widgets
for(;;){
switch(tok.getnext()){
case T_FRAME:
parseFrame(parent);
break;
case T_GAUGE:
new Gauge(parent,&tok);
break;
case T_NUMBER:
new Number(parent,&tok);
break;
case T_COMPASS:
new Compass(parent,&tok);
break;
case T_GRAPH:
new Graph(parent,&tok);
break;
case T_MAP:
#if MARBLE
new MapWidget(parent,&tok);
#else
throw ParseException(&tok,"map not supported in this build");
#endif
break;
case T_STATUS:
new StatusBlockWrapper(parent,&tok);
break;
case T_SWITCH:
new Switch(parent,&tok);
break;
case T_MOMENTARY:
new Momentary(parent,&tok);
break;
case T_SLIDER:
new Slider(parent,&tok);
break;
case T_CCURLY:
return;
default:
throw UnexpException(&tok,"widget name");
}
}
}
static void parseAudio(){
char warning[1024];
bool speech;
DataBuffer<float> *buf = ConfigManager::parseFloatSource();
switch(tok.getnext()){
case T_SAMPLE:speech=false;break;
case T_SPEECH:speech=true;break;
default:
throw UnexpException(&tok,"'speech' or 'sample'");
}
tok.getnextstring(warning);
getApp()->addAudio(warning,buf,speech);
}
static void parseAVar(bool diamond){
// it's a valid type
char buf[256];
bool autoRange=false;
float mn=0,mx=0;
int size;
RawDataBuffer *b;
tok.getnextident(buf); // get name
// if diamond, get topic and datum index
char tname[256];
int idx;
#if DIAMOND
if(diamond){
tok.getnextcheck(T_TOPIC);
tok.getnextident(tname);
tok.getnextcheck(T_COMMA);
idx = tok.getnextint();
diamondMap[DiamondTopicKey(tname,idx)]=QString(buf);
diamondapparatus::subscribe(tname);
if(!diamondSet.contains(tname))
diamondSet.insert(tname);
}
#endif
size = tok.getnextint(); // and size
// now get the range
tok.getnextcheck(T_RANGE);
switch(tok.getnext()){
case T_INT:
case T_FLOAT:
mn = tok.getfloat();
tok.getnextcheck(T_TO);
mx = tok.getnextfloat();
break;
case T_AUTO:
autoRange=true;
break;
default:
throw UnexpException(&tok,"number or 'auto'");
break;
}
b=createVar(T_NAMEFLOAT,buf,size,mn,mx);
if(autoRange)
((DataBuffer<float>*)b)->setAutoRange();
}
static void parseWaypoint(){
tok.getnextcheck(T_OCURLY);
wpResetDefinitions();
for(;;){
char buf[256];
tok.getnextcheck(T_IDENT);
strcpy(buf,tok.getstring());
wpAddField(buf,tok.getnextfloat());
int t = tok.getnext();
if(t==T_CCURLY)
break;
else if(t!=T_COMMA)
throw UnexpException(&tok,"comma or '}'");
}
}
void ConfigManager::parseFile(QString fname){
tok.init();
tok.seterrorhandler(&tokerrorhandler);
tok.settokens(tokens);
tok.setcommentlinesequence("#");
// read the entire file!
QFile file(fname);
if(!file.open(QIODevice::ReadOnly))
throw Exception().set("could not open config file");
QByteArray b = file.readAll();
if(b.isNull() || b.isEmpty())
throw Exception().set("could not read config file");
b.append((char)0);
file.close();
const char *data = b.constData();
tok.reset(data);
bool done = false;
while(!done){
// at the top level we parse frames and
// variables
int t = tok.getnext();
switch(t){
case T_VAR:
parseVars();
break;
case T_WINDOW:
parseWindow();
break;
case T_END:
done=true;
break;
case T_PORT:
port = tok.getnextint();
break;
case T_SENDPORT:
udpSendPort = tok.getnextint();
break;
// the UDP client now sets its address from the first packet received
// but this will override it
case T_SENDADDR:
tok.getnextstring(udpSendAddr);
UDPClient::getInstance()->setAddress(udpSendAddr);
break;
case T_VALIDTIME:
DataManager::dataValidInterval = tok.getnextfloat();
break;
case T_SENDINTERVAL:
sendInterval = tok.getnextfloat();
break;
case T_UPDATEINTERVAL:
graphicalUpdateInterval = tok.getnextfloat()*1000;
break;
case T_AUDIO:
parseAudio();
break;
case T_WAYPOINT:
parseWaypoint();
break;
default:
throw UnexpException(&tok,"'var', 'frame', config data or end of file");
}
}
}
static void parseWindow(){
// option defaults
bool fullScreen = false; // should it be fullscreen?
bool disabled = false;
// what size? (default is fit around widgets. Ignored for fullscreen.)
int width=-1,height=-1;
// if set, move the window to a screen of the given dimensions
int swidth=-1,sheight=-1;
// title if any
char title[256];
// "tab" number - used to generate a shortcut to pull this window
// to the front
int number=-1;
title[0]=0;
int screensetline=-1;
// set this window to not inverse
ConfigManager::inverse=false;
// get window options
bool done = false;
while(!done){
switch(tok.getnext()){
case T_OCURLY:
done = true;
break;
case T_TITLE:
tok.getnextstring(title);
break;
case T_NUMBER:
number = tok.getnextint();
break;
case T_INVERSE:
ConfigManager::inverse=true;
break;
case T_FULLSCREEN:
fullScreen = true;
break;
case T_SIZE: // size of window if not fullscreen
width = tok.getnextint();
tok.getnextcheck(T_COMMA);
height = tok.getnextint();
break;
case T_SCREEN: // move to a screen of given dimensions
swidth = tok.getnextint();
tok.getnextcheck(T_COMMA);
screensetline = tok.getline();
sheight = tok.getnextint();
break;
case T_DISABLE: // the window is disabled and should be immediately closed
disabled=true;
break;
}
}
// create a window
Window *w = getApp()->createWindow();
if(number>=0)
getApp()->setWindowKey(number,w);
ConfigManager::setStyle(w);
// and parse the contents
parseContainer(w->centralWidget());
if(*title){
w->setWindowTitle(title);
}
// move the window if we want to
if(swidth>0){
QDesktopWidget *dt = QApplication::desktop();
QRect r;
int i;
for(i=0;i<dt->screenCount();i++){
r = dt->screenGeometry(i);
printf("Found display : %d x %d\n",r.width(),r.height());
if(r.width() == swidth && r.height()==sheight)
break;
}
if(i==dt->screenCount())
throw Exception(screensetline).set("could not find display of %d x %d",swidth,sheight);
w->move(r.topLeft());
}
// finally show the window and resize if required
if(disabled){
w->hide(); // marked "disabled" in the config
} else {
w->setWindowState(Qt::WindowActive);
w->raise();
w->activateWindow();
if(fullScreen){
w->showFullScreen();
} else {
if(width>0)
w->resize(width,height);
w->showNormal();
}
}
}
static void parseFrame(QWidget *parent){
// first parse the pos block
ConfigRect pos = ConfigManager::parseRect();
// followed by some optional stuff
bool borderless=false;
int spacing=2;
bool done=false;
char label[256];
bool hasLabel=false;
while(!done){
switch(tok.getnext()){
case T_BORDERLESS:
borderless=true;
break;
case T_LABEL:
if(!tok.getnextstring(label))
throw UnexpException(&tok,"frame label");
hasLabel=true;
break;
case T_SPACING:
spacing=tok.getnextint();
break;
case T_OCURLY:
done = true;
break;
default:
throw UnexpException(&tok,"frame option or {");
}
}
// create frame and layout
QFrame *f = new QFrame;
f->setFrameStyle(borderless?
QFrame::NoFrame:
QFrame::Panel);
QGridLayout *l = new QGridLayout;
l->setSpacing(spacing);
f->setLayout(l);
parseContainer(f);
// if there's a label, we need a containing vbox
if(hasLabel){
QFrame *cont = new QFrame;
QVBoxLayout *bl = new QVBoxLayout;
cont->setLayout(bl);
QLabel *lab = new QLabel(label);
lab->setMaximumSize(10000,20);
bl->addWidget(lab);
bl->addWidget(f);
f=cont;
}
// add to the parent's layout
((QGridLayout*)parent->layout())->addWidget(f,pos.y,pos.x,pos.h,pos.w);
}
void parseLinkedVars(bool diamond){
char buf[256];
int size,type;
RawDataBuffer *linkvar,*b;
if(tok.getnext()!=T_OPREN)
throw UnexpException(&tok,"( after linked");
linkedVars.clear();
for(;;){
double mn,mx;
char buf[256];
// get type
type = tok.getnext();
// get name
tok.getnextident(buf);
// if diamond, get topic and datum index
char tname[256];
int idx;
#if DIAMOND
if(diamond){
tok.getnextcheck(T_TOPIC);
tok.getnextident(tname);
tok.getnextcheck(T_COMMA);
idx = tok.getnextint();
diamondMap[DiamondTopicKey(tname,idx)]=QString(buf);
if(!diamondSet.contains(tname))
diamondSet.insert(tname);
diamondapparatus::subscribe(tname);
}
#endif
// now the range
tok.getnextcheck(T_RANGE);
mn = tok.getnextfloat();
tok.getnextcheck(T_TO);
mx = tok.getnextfloat();
// add to a list!
linkedVars.append(LinkedVarEntry(buf,type,mn,mx));
if(tok.getnext()!=T_COMMA){
tok.rewind();
break;
}
}
if(tok.getnext()!=T_CPREN)
throw UnexpException(&tok,") after linked var list");
if(tok.getnext()!=T_INT)
throw UnexpException(&tok,"buffer size after linked var list");
size = tok.getint();
linkvar = NULL;
for(int i=0;i<linkedVars.size();i++){
b = createVar(linkedVars[i].type,
linkedVars[i].name,
size,
linkedVars[i].minVal,
linkedVars[i].maxVal);
if(linkvar)
linkvar->link(b);
else
linkvar = b;
}
}