1 files changed, 85 insertions, 0 deletions
diff --git a/src/GudhUI/gui/Menu_edge_contraction.cpp b/src/GudhUI/gui/Menu_edge_contraction.cpp
new file mode 100644
index 00000000..f2938d61
--- /dev/null
+++ b/src/GudhUI/gui/Menu_edge_contraction.cpp
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+/*    This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
+ *    See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details.
+ *    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_