Merge GudhUI, a UI for gudhi based on Qt

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/trunk@427 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: 17fedd974f14a8225b27d94361e835964eeb5cba

1 files changed, 91 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..dd2621be
--- /dev/null
+++ b/src/GudhUI/gui/Menu_edge_contraction.cpp
@@ -0,0 +1,91 @@
+/*
+ * Menu_edge_contraction.cpp
+ *
+ *  Created on: Sep 11, 2014
+ *      Author: dsalinas
+ */
+
+#ifndef MENU_EDGE_CONTRACTION_CPP_
+#define 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((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/(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((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 /* MENU_EDGE_CONTRACTION_CPP_ */