active viewport highlighting

helloqube/controller.cpp

@@ -35,7 +35,11 @@ void Controller::showSingleView(){
         views[i]->hide();
     }
     views[0]->show();
+
+    views[currentWidgetIndex]->setFocused(false);
     currentWidgetIndex = 0;
+    views[currentWidgetIndex]->setFocused(true);
+
 }
 
 void Controller::showDoubleView(){
@@ -49,7 +53,11 @@ void Controller::showDoubleView(){
     for (int i = 0; i < 2; i++){
         views[i]->show();
     }
-    if (currentWidgetIndex > 1) currentWidgetIndex = 0;
+    if (currentWidgetIndex > 1) {
+        views[currentWidgetIndex]->setFocused(false);
+        currentWidgetIndex = 0;
+        views[currentWidgetIndex]->setFocused(true);
+    }
 }
 
 void Controller::showQuadView(){
@@ -98,7 +106,12 @@ void Controller::processMousePressEvent(QMouseEvent *event, MyGLWidget *widget){
         leftButtonPressed = true;
         lastClickPosition = event->pos();
     }
+    if (currentWidgetIndex != widget->getIndex()){
+        qDebug("Mouse Press event with other index");
+        views[currentWidgetIndex]->setFocused(false);
         currentWidgetIndex = widget->getIndex();
+        views[currentWidgetIndex]->setFocused(true);
+    }
 }
 
 void Controller::processMouseMoveEvent(QMouseEvent *event, MyGLWidget *widget){

helloqube/helloqube.pro.user

 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 3.5.1, 2015-11-10T14:37:55. -->
+<!-- Written by QtCreator 3.5.1, 2015-11-15T21:45:35. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>

helloqube/myglwidget.cpp

@@ -19,8 +19,7 @@ MyGLWidget::MyGLWidget(int index, Controller* c, bool isPerspective, QQuaternion
     rightButtonPressed = false;
     controller = c;
     this->isPerspective = isPerspective;
-
-    setStyleSheet(" border:3px solid rgb(255, 255, 0); ");
+    this->isFocused = isPerspective; //start with focus on perspective view
 }
 
 MyGLWidget::~MyGLWidget()
@@ -137,25 +136,8 @@ void MyGLWidget::paintGL(){
     //cam rotation
     QMatrix4x4 camRot = QMatrix4x4();
     camRot.rotate(cameraRotation);
-
-    //for cube rotation
-    QMatrix4x4 m = QMatrix4x4();
-    m.rotate(qubeRotation);
-
-    //for cube translation
-    QMatrix4x4 translateRot1 = QMatrix4x4(1,0,0,cubeTranslation.x(),0,1,0,cubeTranslation.y(),0,0,1,cubeTranslation.z(),0,0,0,1);
-
     QMatrix4x4 zoomCameraMatrix = QMatrix4x4(1,0,0,0,0,1,0,0,0,0,1,cameraZoom,0,0,0,1);
 
-
-
-//    //zoom camera
-//    glTranslatef(0,0,cameraZoom);//Kamera sitzt sonst in (0,0,0) und man sieht nichts (duh)
-
-//    glTranslatef(cameraX,cameraY,0);//TODO anständig machen, kamerarotation fehlt noch.
-
-
-
     //So scheint das zumindest für die Kamera zu funktionieren:
     //1. ins Rotationszentrum verschieben - Wenn Rotationszentrum geändert wird, schon rotation berücksichtigen
     //2. Rotieren
@@ -165,6 +147,13 @@ void MyGLWidget::paintGL(){
     glTranslatef(camRotCenter.x(),camRotCenter.y(),camRotCenter.z());
 
 
+    //for cube rotation
+    QMatrix4x4 m = QMatrix4x4();
+    m.rotate(qubeRotation);
+
+    //for cube translation
+    QMatrix4x4 translateRot1 = QMatrix4x4(1,0,0,cubeTranslation.x(),0,1,0,cubeTranslation.y(),0,0,1,cubeTranslation.z(),0,0,0,1);
+
     //stack matrices
     glMultMatrixf(translateRot1.data());//Punkte zurück schieben damit rotation um qube zentrum ist
     glMultMatrixf(m.data());
@@ -276,13 +265,59 @@ void MyGLWidget::paintGL(){
     }
     glEnd();
     }
+
+    //has to be down here or will be overpainted by above code
+    if (isFocused) highlightViewport();
+
+}
+
+void MyGLWidget::setFocused(bool isFocused){
+    this->isFocused = isFocused;
+    updateGL();
+}
+
+void MyGLWidget::highlightViewport(){
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1,1,-1,1, -1, 1);//to draw yellow rectangle in screen coordinates
+
+    GLfloat specularColor[] = {1,1,1};
+    GLfloat shininess[] = {128};//specular exponent
+    glMaterialfv(GL_FRONT,GL_SPECULAR,specularColor);
+    glMaterialfv(GL_FRONT,GL_SHININESS,shininess);
+
+    GLfloat yellow[] = {1,1,0};
+    glMaterialfv(GL_FRONT,GL_DIFFUSE,yellow);
+    glNormal3f(0,0,1);
+
+    glDisable(GL_DEPTH_TEST);
+    glLineWidth(15.0f);
+    glBegin(GL_LINE_LOOP);
+    glVertex2f(1,1);
+    glVertex2f(1,-1);
+    glVertex2f(-1,-1);
+    glVertex2f(-1,1);
+    glEnd();
+    glEnable(GL_DEPTH_TEST);
+    resetProjectionMatrix();
 }
 
 void MyGLWidget::resizeGL(int width, int height){
-    double p = (double)width / (double)height;
-        qDebug() << "Resize to " << width << "," << height << ", Perspective: " << p;
+    windowWidth = width;
+    windowHeight = height;
+        qDebug() << "Resize to " << width << "," << height << ", Perspective: " << (double)windowWidth / (double)windowHeight;
     glViewport(0,0,width,height);
 
+    resetProjectionMatrix();
+
+   controller->setScreenScenter(QPoint((double)width/2.0,(double)height/2.0));//lieber zu oft casten bevors nicht tut...
+}
+
+void MyGLWidget::resetProjectionMatrix(){
+
+    double p = (double)windowWidth / (double)windowHeight;
     glMatrixMode(GL_PROJECTION);//from HelloGL example
     glLoadIdentity();
 
@@ -294,7 +329,6 @@ void MyGLWidget::resizeGL(int width, int height){
 
     glMatrixMode(GL_MODELVIEW);
 
-   controller->setScreenScenter(QPoint((double)width/2.0,(double)height/2.0));//lieber zu oft casten bevors nicht tut...
 }
 
 void MyGLWidget::mousePressEvent(QMouseEvent *event){
@@ -318,30 +352,6 @@ void MyGLWidget::keyReleaseEvent(QKeyEvent *event){
     }
 }
 
-void MyGLWidget::paintEvent(QPaintEvent *pe)
-{
-    //reaaaaally weird:
-//  QStyleOption o;
-//  o.initFrom(this);
-//  QPainter p(this);
-//  style()->drawPrimitive(
-//    QStyle::PE_Widget, &o, &p, this);
-
-    //even weider:
-//    QStyleOption opt;
-//        opt.init(this);
-//        QStylePainter p(this);
-//        p.drawPrimitive(QStyle::PE_Widget, opt);
-
-    //Anyway, the internet tells me I need to do something here in Order to use the style sheet
-    //and I didn't find any other plausible option to add a border to the selected view.
-    //A little hint on the assignment would have helped a great deal here...
-
-
-    //need this to actually draw gl stuff
-  QGLWidget::paintEvent(pe);
-};
-
 void MyGLWidget::translateCamera(double xDiff, double yDiff, double zDiff)
 {
     //in order to "move parallel to image plane", we have to rotate the image coordinates xDiff and yDiff by our current camera rotation.

helloqube/myglwidget.h

@@ -41,6 +41,7 @@ class MyGLWidget : public QGLWidget
        void initShaderStuff();
 
        int getIndex();
+       void setFocused(bool isFocused);//Tell view if it is focused and therefore needs a yellow border
 
 protected:
        //4.1 Core Functionality
@@ -50,9 +51,8 @@ protected:
     void mousePressEvent(QMouseEvent *event);
     void mouseMoveEvent(QMouseEvent *event);
     void wheelEvent(QWheelEvent *event);
-    void keyPressEvent(QKeyEvent * event);
-    void keyReleaseEvent(QKeyEvent *event);
-    void paintEvent(QPaintEvent *event);
+    void keyPressEvent(QKeyEvent * event);//for ctrl key for mode switch
+    void keyReleaseEvent(QKeyEvent *event);//for ctrl key for mode switch
 
     Controller* controller;
 
@@ -84,7 +84,10 @@ private:
     QGLShaderProgram *phongShader;
 
 
-
+    void highlightViewport();
+    void resetProjectionMatrix();
+    double windowWidth, windowHeight;
+    bool isFocused;
 
 public slots:
     //4.1.1 slots for shading modes