I was able to resolve the segmentation faults, but now get the following messages while running
I have defined the slots as part of Mainwindow class. What could be the reason?Code:Object::connect: No such slot Mainwindow::displayinfo(node) in entrytree2.cpp:167 Object::connect: No such slot Mainwindow::adjustroot(newbutton) in entrytree2.cpp:168 Object::connect: No such slot Mainwindow::displaychildren(node->parent) in entrytree2.cpp:169 Object::connect: No such slot Mainwindow::displayinfo(node->parent) in entrytree2.cpp:170 Object::connect: No such slot Mainwindow::adjustroot(node->parent) in entrytree2.cpp:171 Object::connect: No such slot Mainwindow::displaychildren(node) in entrytree2.cpp:166
Here is my present code:
Code:#include <iostream> #include <vector> #include <fstream> #include <string> #include <cstdlib> #include <sstream> #include <QtGui> using namespace std; char *stringtoarray(string); class treenode { public: string name; double efficiency; long noofflops; unsigned int level; treenode *parent; vector <treenode *> children; void createnode(int h, treenode *r) { level=h; parent=r; } void insertchild(treenode *c) { children.push_back (c); } void initdata(string &e, double f, long g) { name=e; efficiency=f; noofflops=g; } treenode* traversal(void) { static vector <treenode*>::size_type p=0; if(p<children.size()) { return(children[p]); ++p; } else { p=0; return NULL; } } }; treenode *root=NULL; treenode *curr=NULL; class Mainwindow : public QDialog, public treenode { Q_OBJECT public: Mainwindow(); void createbutton(treenode * node); protected: void closeevent(QCloseEvent *event); private slots: void adjustroot(QPushButton *button); void displayinfo(treenode *node); void displaychildren(treenode *node); private: QLabel *namelabel; QLabel *efflabel; QLabel *flopslabel; QTextEdit *namefield; QTextEdit *efffield; QTextEdit *flopsfield; QHBoxLayout *topleftlayout; QHBoxLayout *bottomleftlayout; QVBoxLayout *leftlayout; QVBoxLayout *rightlayout; QHBoxLayout *mainlayout; QScrollArea *scrollbox; QWidget *scrollwidget; QHBoxLayout *scrollboxlayout; QRect Rect; float factor; }; Mainwindow::Mainwindow(void) { topleftlayout=new QHBoxLayout; bottomleftlayout=new QHBoxLayout; leftlayout=new QVBoxLayout; rightlayout=new QVBoxLayout; mainlayout=new QHBoxLayout; namefield=new QTextEdit; efffield=new QTextEdit; flopsfield=new QTextEdit; treenode *tempnode; tempnode=root->traversal(); scrollbox=new QScrollArea; scrollbox->setWidgetResizable(true); bottomleftlayout->addWidget(scrollbox); scrollbox->setFrameShape(QFrame::NoFrame); scrollwidget=new QWidget(); scrollboxlayout=new QHBoxLayout(scrollwidget); scrollbox->setWidget(scrollwidget); scrollbox->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); scrollboxlayout->setAlignment(Qt::AlignLeft); scrollboxlayout->setSizeConstraint(QLayout::SetMinimumSize); while(tempnode!=NULL) { createbutton(tempnode); tempnode=root->traversal(); } Rect=QApplication::desktop()->screenGeometry(); factor=(float)(Rect.width()/Rect.height()); setMaximumSize(Rect.width()*0.7/factor, Rect.height()*0.4/factor); leftlayout->addLayout(topleftlayout); leftlayout->addLayout(bottomleftlayout); mainlayout->addLayout(leftlayout); mainlayout->addLayout(rightlayout); } void Mainwindow::createbutton(treenode *node) { QPushButton *newbutton =new QPushButton; newbutton->setDefault(false); newbutton->setEnabled(true); if(node==root) { topleftlayout->addWidget(newbutton); } else { scrollboxlayout->addWidget(newbutton); } QObject::connect(newbutton, SIGNAL(pressed()), this, SLOT(displaychildren(node))); QObject::connect(newbutton, SIGNAL(pressed()), this, SLOT(displayinfo(node))); QObject::connect(newbutton, SIGNAL(pressed()), this, SLOT(adjustroot(newbutton))); QObject::connect(newbutton, SIGNAL(released()), this, SLOT(displaychildren(node->parent))); QObject::connect(newbutton, SIGNAL(released()), this, SLOT(displayinfo(node->parent))); QObject::connect(newbutton, SIGNAL(released()), this, SLOT(adjustroot(node->parent))); } void Mainwindow::displaychildren(treenode *node) { treenode *tempnod; tempnod=node->traversal(); scrollbox->setWidgetResizable(true); bottomleftlayout->addWidget(scrollbox); scrollbox->setFrameShape(QFrame::NoFrame); scrollbox->setWidget(scrollwidget); scrollbox->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); scrollboxlayout->setAlignment(Qt::AlignLeft); scrollboxlayout->setSizeConstraint(QLayout::SetMinimumSize); while(tempnod!=NULL) { createbutton(tempnod); tempnod=root->traversal(); } Rect=QApplication::desktop()->screenGeometry(); factor=(float)(Rect.width()/Rect.height()); setMaximumSize(Rect.width()*0.7/factor, Rect.height()*0.4/factor); leftlayout->addLayout(topleftlayout); leftlayout->addLayout(bottomleftlayout); mainlayout->addLayout(leftlayout); mainlayout->addLayout(rightlayout); } void Mainwindow::displayinfo(treenode *node) { namefield->insertPlainText(stringtoarray(node->name)); namefield->setDocumentTitle("Name:"); rightlayout->addWidget(namefield); stringstream ss(stringstream::in|stringstream::out); ss<<node->efficiency; string s=ss.str(); QString q1(s.c_str()); efffield->insertPlainText(q1); efffield->setDocumentTitle("Efficiency:"); rightlayout->addWidget(efffield); s.clear(); ss.str(""); ss<<node->noofflops; s=ss.str(); QString q2(s.c_str()); flopsfield->insertPlainText(q2); flopsfield->setDocumentTitle("Flops:"); rightlayout->addWidget(flopsfield); } void Mainwindow::adjustroot(QPushButton *button) { topleftlayout->addWidget(button); } /*void treenode::createnode(leveldata *a, int h, treenode *r) { data=a; level=h; } void treenode::insertchild(treenode *c) { children.push_back (c); } void treenode::initdata(char *e, double f, long g,) { name=e; efficiency=f; noofflops=g; }*/ int main(int argc, char *argv[]) { size_t spaces=0; //size_t nextspaces=0; size_t pos=0; string temp; string temp2; string levname; double eff; long flops; int flag=1; ifstream myfile("sample.txt"); if(getline(myfile, temp)) { flag=1; } else { flag=0; return 1; } do { //Separating the data from the line read to initialise the data members of the object for(; temp[pos]!=' '; ++pos) { temp2.push_back(temp[pos]); } ++pos; levname=temp2; //size_t j=levname.length(); char c; size_t p=0; c=levname[p]; temp2.clear(); for(; temp[pos]!=' '; ++pos) { temp2.push_back(temp[pos]); } ++pos; eff=atof(stringtoarray(temp2)); temp2.clear(); for(; pos<temp.length(); ++pos) { temp2.push_back(temp[pos]); } ++pos; flops=atol(stringtoarray(temp2)); temp2.clear(); //Creating a new node treenode *newnode=new treenode; newnode->initdata(levname, eff, flops); newnode->createnode((unsigned int)spaces, curr); if((!newnode->level)||(spaces==0)) { root=newnode; curr=newnode; } //Associating the child to the parent curr->insertchild(newnode); //Updating the curr pointer to point to the parent for next node to be created if (getline(myfile, temp)) { flag=1; } else { flag=0; break; } spaces=0; while(temp[spaces]==' ') { ++spaces; } if(spaces>newnode->level) { curr=newnode; } else if(spaces<newnode->level) { treenode *temporary=newnode; while(!(temporary->level<spaces)) { temporary=temporary->parent; } curr=temporary; } pos=spaces; }while(flag==1); QApplication app(argc, argv); Mainwindow *mywindow=new Mainwindow; mywindow->show(); return app.exec(); } char *stringtoarray(string s) { char *a=new char[s.size()+1]; memcpy(a, s.c_str(), s.size()); a[s.size()]='\0'; return a; } #include "entrytree2.moc"
