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/* This file is part of the Gudhi Library. The Gudhi library
* (Geometric Understanding in Higher Dimensions) is a generic C++
* library for computational topology.
*
* Author(s): David Salinas
*
* Copyright (C) 2014 Inria
*
* Modification(s):
* - YYYY/MM Author: Description of the modification
*/
#ifndef GUI_MENU_EDGE_CONTRACTION_CPP_
#define GUI_MENU_EDGE_CONTRACTION_CPP_
#include "Menu_edge_contraction.h"
Menu_edge_contraction::Menu_edge_contraction(MainWindow* parent, const Model& model) :
parent_(parent), model_(model) {
setupUi(this);
connectActions(parent_);
}
void Menu_edge_contraction::connectActions(MainWindow* parent) {
QObject::connect(
this->horizontalSlider,
SIGNAL(valueChanged(int)),
this,
SLOT(slider_value_changed(int)));
QObject::connect(this, SIGNAL(contract_edges(unsigned)), parent, SLOT(contract_edges(unsigned)));
QObject::connect(this->pushButton_collapse, SIGNAL(clicked()), this, SLOT(send_contract_edges()));
}
void Menu_edge_contraction::slider_value_changed(int new_slider_value) {
int num_collapses =
(horizontalSlider->value() == 1) ? 1 : horizontalSlider->value() * model_.num_vertices() / 100;
this->txt_nb_vertices->setNum(static_cast<int>(model_.num_vertices()));
this->txt_nb_collapses->setNum(num_collapses);
this->spinBox_nb_remaining_vertices->setValue(model_.num_vertices() - num_collapses);
}
void
Menu_edge_contraction::update_slider_value() {
int num_vertices = model_.num_vertices();
int num_collapses = (horizontalSlider->value() == 1) ? 1 : horizontalSlider->value() * num_vertices / 100;
int horizontal_slider_position = num_vertices > 0 ? num_collapses / static_cast<double>(num_vertices * 100) : 1;
horizontalSlider->setValue(horizontal_slider_position);
}
void
Menu_edge_contraction::update_gui_numbers() {
update_slider_value();
bool ok;
int num_collapses = this->txt_nb_collapses->text().toInt(&ok, 10);
if (!ok) return;
this->txt_nb_vertices->setNum(static_cast<int>(model_.num_vertices()));
this->txt_nb_collapses->setNum(num_collapses);
this->spinBox_nb_remaining_vertices->setValue(model_.num_vertices() - num_collapses);
}
void
Menu_edge_contraction::update_gui_numbers(int new_value) {
update_gui_numbers();
}
void
Menu_edge_contraction::send_contract_edges() {
emit(contract_edges(num_collapses()));
update_gui_numbers();
}
unsigned
Menu_edge_contraction::num_vertices() {
return model_.num_vertices();
}
unsigned
Menu_edge_contraction::num_collapses() {
return (horizontalSlider->value() == 1) ? 1 : horizontalSlider->value() * num_vertices() / 100;
}
#include "Menu_edge_contraction.moc"
#endif // GUI_MENU_EDGE_CONTRACTION_CPP_
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