void Fl_MIDIKeyboard::kbd_position(short pos){
if( _type == MKB_HORIZONTAL)
position(pos, yposition());
else {
position(xposition(), pos);
}
visible_keys(); // calls redraw()
}
void CqCenterScroll::resize(int x, int y, int w, int h)
{
int dw = w - this->w();
int dh = h - this->h();
Fl_Scroll::resize(x,y,w,h);
// Scroll the widget so that the window seems to expand equally around the
// contained widget. This keeps the widget more centred than the default.
position(xposition()-dw/2, yposition()-dh/2);
}
void CqCenterScroll::setImage(const boost::shared_ptr<CqImage>& image)
{
int oldW = m_imageWidget.w();
int oldH = m_imageWidget.h();
m_imageWidget.setImage(image);
// Scroll the position such that the centre of the child widget remains in
// the same place.
position(xposition() + (m_imageWidget.w() - oldW)/2,
yposition() + (m_imageWidget.h() - oldH)/2);
}
int CqCenterScroll::handle(int event)
{
switch(event)
{
case FL_PUSH:
if(Fl::event_button() == FL_MIDDLE_MOUSE)
{
m_prevDragX = Fl::event_x();
m_prevDragY = Fl::event_y();
return 1;
}
break;
case FL_RELEASE:
if(Fl::event_button() == FL_MIDDLE_MOUSE)
return 1;
break;
case FL_DRAG:
if(Fl::event_button() == FL_MIDDLE_MOUSE)
{
position(xposition() - (Fl::event_x() - m_prevDragX),
yposition() - (Fl::event_y() - m_prevDragY));
m_prevDragX = Fl::event_x();
m_prevDragY = Fl::event_y();
return 1;
}
break;
case FL_KEYDOWN:
case FL_SHORTCUT:
int key = Fl::event_key();
switch(key)
{
case 'h':
if(Fl::event_alt())
return 0;
// passthrough
case FL_Home:
centerImageWidget();
return 1;
break;
// Ignore cursors, so that the browser gets them.
case FL_Up:
case FL_Down:
case FL_Left:
case FL_Right:
return 0;
}
break;
}
if(m_imageWidget.handle(event))
return(1);
else
return Fl_Scroll::handle(event);
}
void ParticleSystem::fuel(int particles, sf::Vector2f ySpawnRange, sf::Vector2f xSpawnRange) {
for (int i = 0; i < particles; i++) {
/* Randomizer initialization */
std::random_device rd;
std::mt19937 gen(rd());
UniRealDist yposition(ySpawnRange.x, ySpawnRange.y);
UniRealDist xposition(xSpawnRange.x, xSpawnRange.y);
UniRealDist yspeed(10.0f, 40.0f);
m_particleSpeed = yspeed(gen);
/* Generate a new particle and put it at the generation point */
Particle *particle;
particle = new Particle();
particle->drawVertex.position.x = xposition(gen);
particle->drawVertex.position.y = yposition(gen);
particle->vel.x = 0.0f;
particle->vel.y = 1.0f;
/*
switch (m_shape) {
case Shape::CIRCLE: {
// Generate a random angle
UniRealDist randomAngle(0.0f, (2.0f * 3.14159265));
float angle = randomAngle(gen);
// Use the random angle as a thrust vector for the particle
// UniRealDist randomAngleCos(0.0f, cos(angle));
// UniRealDist randomAngleSin(0.0f, sin(angle));
particle->vel.x = (float)(rand() % 100) * 0.01f; // randomAngleCos(gen);
particle->vel.y = (float)(rand() % 100) * 0.01f; // randomAngleSin(gen);
break;
}
case Shape::SQUARE: {
// Square generation
UniRealDist randomSide(-1.0f, 1.0f);
particle->vel.x = randomSide(gen);
particle->vel.y = randomSide(gen);
break;
}
default: {
particle->vel.x = 0.5f; // Easily detected
particle->vel.y = 0.5f; // Easily detected
}
}
*/
// We don't want lame particles. Reject, start over.
if (particle->vel.x == 0.0f && particle->vel.y == 0.0f) {
delete particle;
continue;
}
/* Randomly change the colors of the particles */
const auto a = (((m_particleSpeed - 10.0f) / 30.0f) * 255.0f) + 0;
particle->drawVertex.color.r = 255;
particle->drawVertex.color.g = 255 - a;
particle->drawVertex.color.b = 255 - a;
particle->drawVertex.color.a = 255;
m_particles.push_back(ParticlePtr(particle));
}
return;
}
