void PathDeformRenderer::mouseMoveEvent(QMouseEvent *e)
{
if (!m_mouseDrag && (QLineF(m_mousePress, e->pos()).length() > 25.0) )
m_mouseDrag = true;
if (m_mouseDrag) {
QRect rectBefore = circle_bounds(m_pos, m_radius, m_fontSize);
if (e->type() == QEvent::MouseMove) {
QLineF line(m_pos, e->pos() + m_offset);
line.setLength(line.length() * .1);
QPointF dir(line.dx(), line.dy());
m_direction = (m_direction + dir) / 2;
}
m_pos = e->pos() + m_offset;
#ifdef QT_OPENGL_SUPPORT
if (usesOpenGL()) {
update();
} else
#endif
{
QRect rectAfter = circle_bounds(m_pos, m_radius, m_fontSize);
update(rectBefore | rectAfter);
}
}
}
void PathDeformRenderer::timerEvent(QTimerEvent *e)
{
if (e->timerId() == m_repaintTimer.timerId()) {
if (QLineF(QPointF(0,0), m_direction).length() > 1)
m_direction *= 0.995;
qreal time = m_repaintTracker.restart();
QRect rectBefore = circle_bounds(m_pos, m_radius, m_fontSize);
qreal dx = m_direction.x();
qreal dy = m_direction.y();
if (time > 0) {
dx = dx * time * .1;
dy = dy * time * .1;
}
m_pos += QPointF(dx, dy);
if (m_pos.x() - m_radius < 0) {
m_direction.setX(-m_direction.x());
m_pos.setX(m_radius);
} else if (m_pos.x() + m_radius > width()) {
m_direction.setX(-m_direction.x());
m_pos.setX(width() - m_radius);
}
if (m_pos.y() - m_radius < 0) {
m_direction.setY(-m_direction.y());
m_pos.setY(m_radius);
} else if (m_pos.y() + m_radius > height()) {
m_direction.setY(-m_direction.y());
m_pos.setY(height() - m_radius);
}
#ifdef QT_OPENGL_SUPPORT
if (usesOpenGL()) {
update();
} else
#endif
{
QRect rectAfter = circle_bounds(m_pos, m_radius, m_fontSize);
update(rectAfter | rectBefore);
QApplication::syncX();
}
}
// else if (e->timerId() == m_fpsTimer.timerId()) {
// printf("fps: %d\n", m_fpsCounter);
// emit frameRate(m_fpsCounter);
// m_fpsCounter = 0;
// }
}
void PathDeformRenderer::generateLensPixmap()
{
qreal rad = m_radius + LENS_EXTENT;
QRect bounds = circle_bounds(QPointF(), rad, 0);
QPainter painter;
if (preferImage()) {
m_lens_image = QImage(bounds.size(), QImage::Format_ARGB32_Premultiplied);
m_lens_image.fill(0);
painter.begin(&m_lens_image);
} else {
m_lens_pixmap = QPixmap(bounds.size());
m_lens_pixmap.fill(Qt::transparent);
painter.begin(&m_lens_pixmap);
}
QRadialGradient gr(rad, rad, rad, 3 * rad / 5, 3 * rad / 5);
gr.setColorAt(0.0, QColor(255, 255, 255, 191));
gr.setColorAt(0.2, QColor(255, 255, 127, 191));
gr.setColorAt(0.9, QColor(150, 150, 200, 63));
gr.setColorAt(0.95, QColor(0, 0, 0, 127));
gr.setColorAt(1, QColor(0, 0, 0, 0));
painter.setRenderHint(QPainter::Antialiasing);
painter.setBrush(gr);
painter.setPen(Qt::NoPen);
painter.drawEllipse(0, 0, bounds.width(), bounds.height());
}
void PathDeformRenderer::setIntensity(int intensity)
{
m_intensity = intensity;
if (!m_animated) {
#ifdef QT_OPENGL_SUPPORT
if (usesOpenGL()) {
update();
return;
}
#endif
update(circle_bounds(m_pos, m_radius, m_fontSize));
}
}
void PathDeformRenderer::setRadius(int radius)
{
qreal max = qMax(m_radius, (qreal)radius);
m_radius = radius;
generateLensPixmap();
if (!m_animated || m_radius < max) {
#ifdef QT_OPENGL_SUPPORT
if (usesOpenGL()){
update();
return;
}
#endif
update(circle_bounds(m_pos, max, m_fontSize));
}
}
