///
/// \brief GlFrame::wheelEvent
/// Translates along Z axis with mouse wheel
/// \param event
///
void GlFrame::wheelEvent( QWheelEvent* event )
{
if(event->delta() > 0)
translateCamera(-m_moveSpeed * m_timeSinceLastFrame, 0);
else
translateCamera(m_moveSpeed * m_timeSinceLastFrame, 0);
}
///
/// \brief GlFrame::keyPressEvent
/// Key Event handler, for translation and rotation
/// ZS : move along Z
/// QD : move along X
/// RF : move along Y
///
/// Arrow keys : rotate camera
///
/// \param event
///
void GlFrame::keyPressEvent( QKeyEvent* event )
{
switch( event->key())
{
case Qt::Key_Left:
rotateCamera( m_rotateSpeed * m_timeSinceLastFrame, 0 );
break;
case Qt::Key_Right:
rotateCamera( -m_rotateSpeed * m_timeSinceLastFrame, 0);
break;
case Qt::Key_Up:
rotateCamera( 0, m_rotateSpeed * m_timeSinceLastFrame );
break;
case Qt::Key_Down:
rotateCamera( 0, -m_rotateSpeed * m_timeSinceLastFrame);
break;
case Qt::Key_D:
translateCamera(0, m_moveSpeed * m_timeSinceLastFrame);
break;
case Qt::Key_Q:
translateCamera(0, -m_moveSpeed * m_timeSinceLastFrame);
break;
case Qt::Key_Z:
translateCamera(m_moveSpeed * m_timeSinceLastFrame, 0);
break;
case Qt::Key_S:
translateCamera(-m_moveSpeed * m_timeSinceLastFrame, 0);
break;
case Qt::Key_R:
m_Camera->translateY(m_moveSpeed * m_timeSinceLastFrame);
break;
case Qt::Key_F:
m_Camera->translateY(-m_moveSpeed * m_timeSinceLastFrame);
break;
}
}
// returns true iff the key had some effect
bool Camera::controlSpec(int key) {
switch (key) {
case GLUT_KEY_UP:
translateCamera(0, 0.1, 0);
break;
case GLUT_KEY_DOWN:
translateCamera(0, -0.1, 0);
break;
case GLUT_KEY_LEFT:
translateCamera(-0.1, 0, 0);
break;
case GLUT_KEY_RIGHT:
translateCamera(0.1, 0, 0);
break;
default:
return false;
}
return true;
}
static void special(int key, int x, int y)
{
switch (key) {
case GLUT_KEY_UP:
/* move forward */
translateCamera(0.15f);
break;
case GLUT_KEY_DOWN:
/* move backward */
translateCamera(-0.15f);
break;
case GLUT_KEY_RIGHT:
/* rotate to the right */
rotateCamera(5.0f);
break;
case GLUT_KEY_LEFT:
/* rotate to the left */
rotateCamera(-5.0f);
break;
}
}
bool Camera::control(unsigned char key) {
switch (key) {
case 'I':
translateCamera(0, 0, moveSpeed);
break;
case 'i':
translateCamera(0, 0, -moveSpeed);
break;
case 't':
rotateCamera(-turnSpeed, 1.0, 0.0, 0.0);
break;
case 'T':
rotateCamera(turnSpeed, 1.0, 0.0, 0.0);
break;
case 'a':
rotateCamera(-turnSpeed, 0.0, 1.0, 0.0);
break;
case 'A':
rotateCamera(turnSpeed, 0.0, 1.0, 0.0);
break;
case 'c':
rotateCamera(-turnSpeed, 0.0, 0.0, 1.0);
break;
case 'C':
rotateCamera(turnSpeed, 0.0, 0.0, 1.0);
break;
default:
return false;
}
return true;
}
void Viewer::key(int key, int scancode, int action, int mods)
{
if(action == GLFW_PRESS || action == GLFW_REPEAT)
{
if (key == GLFW_KEY_UP)
polarView(distance,azimut,elevation+5,twist);
else if (key == GLFW_KEY_DOWN)
polarView(distance,azimut,elevation-5,twist);
else if (key == GLFW_KEY_LEFT)
polarView(distance,azimut-5,elevation,twist);
else if (key == GLFW_KEY_RIGHT)
polarView(distance,azimut+5,elevation,twist);
}
/* w ==> switch draw_mode : wireframe <-> triangles */
if(action == GLFW_PRESS && key == GLFW_KEY_Z)
{
if(draw_mode == DRAW_MODE::WIREFRAME)
draw_mode = DRAW_MODE::TRIANGLES;
else if(draw_mode == DRAW_MODE::TRIANGLES)
draw_mode = DRAW_MODE::WIREFRAME;
}
/* s ==> switch smooth mode : smooth <-> no smooth */
if(action == GLFW_PRESS && key == GLFW_KEY_S)
{
if(smooth_mode == SMOOTH_MODE::SMOOTH)
smooth_mode = SMOOTH_MODE::NO_SMOOTH;
else
smooth_mode = SMOOTH_MODE::SMOOTH;
}
/* l ==> siwth lighting mode : constant <-> gouraud */
if(action == GLFW_PRESS && key == GLFW_KEY_L)
{
if(lighting_mode == LIGHTING_MODE::CONSTANT)
{
lighting_mode = LIGHTING_MODE::GOURAUD;
glShadeModel(GL_SMOOTH);
std::cout << "switch to gouraud illumination" << std::endl;
}else
{
lighting_mode = LIGHTING_MODE::CONSTANT;
glShadeModel(GL_FLAT);
std::cout << "switch to constant illumination model" << std::endl;
}
}
/* n ==> switch draw normals on/off */
if(action == GLFW_PRESS && key == GLFW_KEY_N)
{
draw_normals = !draw_normals;
}
/* keypad 5,2,1,3 ==> control camera translation */
if(action == GLFW_PRESS|| action == GLFW_REPEAT)
{
if(key == GLFW_KEY_KP_5)
{
translateCamera(0.0,1.0,0.0);
}else if(key == GLFW_KEY_KP_2)
{
translateCamera(0.0,-1.0,0.0);
}else if(key == GLFW_KEY_KP_1)
{
translateCamera(-1.0,0.0,0.0);
}else if(key == GLFW_KEY_KP_3)
{
translateCamera(1.0,0.0,0.0);
}
}
}
