From 0ff59ea1055f4e51f9935d5e48e40efb3cf39436 Mon Sep 17 00:00:00 2001
From: Maxime Gimeno <maxime.gimeno@gmail.com>
Date: Wed, 14 Sep 2016 09:55:18 +0200
Subject: [PATCH] Add missing files

---
 .../Surface_mesh/Parameterization_widget.ui   |  48 ++++++
 .../Plugins/Surface_mesh/UVProjector.h        | 139 ++++++++++++++++++
 2 files changed, 187 insertions(+)
 create mode 100644 Polyhedron/demo/Polyhedron/Plugins/Surface_mesh/Parameterization_widget.ui
 create mode 100644 Polyhedron/demo/Polyhedron/Plugins/Surface_mesh/UVProjector.h

diff --git a/Polyhedron/demo/Polyhedron/Plugins/Surface_mesh/Parameterization_widget.ui b/Polyhedron/demo/Polyhedron/Plugins/Surface_mesh/Parameterization_widget.ui
new file mode 100644
index 00000000000..7c705c323e0
--- /dev/null
+++ b/Polyhedron/demo/Polyhedron/Plugins/Surface_mesh/Parameterization_widget.ui
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Parameterization</class>
+ <widget class="QDockWidget" name="Parameterization">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>UVMapping</string>
+  </property>
+  <widget class="QWidget" name="dockWidgetContents">
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <widget class="QGraphicsView" name="graphicsView">
+      <property name="mouseTracking">
+       <bool>true</bool>
+      </property>
+      <property name="verticalScrollBarPolicy">
+       <enum>Qt::ScrollBarAlwaysOff</enum>
+      </property>
+      <property name="horizontalScrollBarPolicy">
+       <enum>Qt::ScrollBarAlwaysOff</enum>
+      </property>
+      <property name="interactive">
+       <bool>false</bool>
+      </property>
+      <property name="renderHints">
+       <set>QPainter::Antialiasing</set>
+      </property>
+      <property name="dragMode">
+       <enum>QGraphicsView::NoDrag</enum>
+      </property>
+      <property name="transformationAnchor">
+       <enum>QGraphicsView::NoAnchor</enum>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/Polyhedron/demo/Polyhedron/Plugins/Surface_mesh/UVProjector.h b/Polyhedron/demo/Polyhedron/Plugins/Surface_mesh/UVProjector.h
new file mode 100644
index 00000000000..dd54dad556d
--- /dev/null
+++ b/Polyhedron/demo/Polyhedron/Plugins/Surface_mesh/UVProjector.h
@@ -0,0 +1,139 @@
+#include <QDebug>
+#include <vector>
+
+#include <QWidget>
+#include <QObject>
+#include <QPainter>
+
+#include <QMouseEvent>
+#include <QEvent>
+
+#include <QPoint>
+#include <QMatrix3x3>
+#include <QVector2D>
+#include <QVector3D>
+
+#include <cmath>
+
+struct State{
+ bool is_left_pressed;
+ bool is_right_pressed;
+};
+
+class UVProjector:public QWidget
+{
+public:
+  UVProjector(QWidget* parent = 0, Qt::WindowFlags flags =0)
+    :QWidget(parent,flags)
+  {
+    setMouseTracking(true);
+    state = {false,false};
+    translation = QVector3D(0,0,1);
+    rotation = 0;
+    prev_pos = QPoint(0,0);
+    rot_center = QPoint(width()/2, height()/2);
+
+  }
+  void setPoints(const std::vector<QPointF>& p){points = p;}
+protected:
+  void paintEvent(QPaintEvent*)
+  {
+    QPainter painter(this);
+    QFont font;
+    font.setPointSize(10);
+    painter.setFont(font);
+    painter.setBrush(QBrush(Qt::white));
+    painter.setPen(Qt::white);
+    painter.drawRect(QRect(QPoint(0,0), QPoint(this->width(),this->height())));
+
+    painter.setPen(QPen(Qt::black));
+    Q_FOREACH(QPointF p, points)
+    {
+     /*Translation(-w/2, -h/2) to recenter the scene, then
+      * Scaling then Rotation and finaly the Translation
+      * + Translation(w/2+h/2) to put it back.    */
+     //scaled values
+     qreal sx(translation.z()* (p.x()-width() /2.0)), sy(translation.z()* (p.y()-height()/2.0)) ;
+
+     painter.drawPoint(
+        translation.x() + width() /2.0 + cos(rotation)*sx + sin(rotation)*sy,
+        translation.y() + height()/2.0 + -sin(rotation)*sx + cos(rotation)*sy
+        );
+    }
+    painter.end();
+  }
+  void mouseMoveEvent(QMouseEvent* me)
+  {
+    if(state.is_left_pressed)
+    {
+     QVector2D prev_dir(prev_pos.x() - width()/2,
+                   prev_pos.y() - height()/2);
+     QVector2D dir(me->pos().x() - width()/2,
+                   me->pos().y() - height()/2);
+     prev_dir.normalize();
+     dir.normalize();
+     qreal a = acos(QVector2D::dotProduct(dir,prev_dir)/(dir.length()*prev_dir.length()));
+     qreal det = dir.x()*prev_dir.y()-prev_dir.x()*dir.y();
+     if(det > 0)
+      rotation += a;
+     else
+      rotation -= a;
+     update();
+    }
+    else if(state.is_right_pressed)
+    {
+      QVector2D dir(me->pos().x() - prev_pos.x(),
+                    me->pos().y() - prev_pos.y());
+
+      translation[0] += dir.x();
+      translation[1] += dir.y();
+      update();
+    }
+    prev_pos = me->pos();
+  }
+
+  void mousePressEvent(QMouseEvent* me)
+  {
+    if(me->button() == Qt::LeftButton)
+      state.is_left_pressed = true;
+    else if (me->button() == Qt::RightButton)
+      state.is_right_pressed = true;
+  }
+  void mouseReleaseEvent(QMouseEvent* me)
+  {
+    if(me->button() == Qt::LeftButton)
+      state.is_left_pressed = false;
+    else if (me->button() == Qt::RightButton)
+      state.is_right_pressed = false;
+  }
+  void wheelEvent(QWheelEvent *event)
+  {
+   if(event->delta() >0)
+     translation[2] *= 1.2;
+   else
+    translation[2] /= 1.2;
+    update();
+  }
+
+  void mouseDoubleClickEvent(QMouseEvent * me)
+  {
+   if(state.is_right_pressed)
+   {
+     rot_center = me->pos();
+   }
+   else{
+     translation = QVector3D(0,0,1);
+     rotation = 0;
+     rot_center = QPoint(width()/2, height()/2);
+   }
+    update();
+  }
+private:
+  QPoint prev_pos;
+  QPoint rot_center;
+  std::vector<QPointF> points;
+  qreal rotation;
+  QVector3D translation;
+  State state;
+
+};