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 CompositionRenderer::setCirclePos(const QPointF &pos)
{
const QRect oldRect = rectangle_around(m_circle_pos).toAlignedRect();
m_circle_pos = pos;
const QRect newRect = rectangle_around(m_circle_pos).toAlignedRect();
#if defined(QT_OPENGL_SUPPORT) && !defined(QT_OPENGL_ES)
if (usesOpenGL())
update();
else
#endif
update(oldRect | newRect);
}
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));
}
}
void CompositionRenderer::paint(QPainter *painter)
{
#if defined(QT_OPENGL_SUPPORT) && !defined(QT_OPENGL_ES)
if (usesOpenGL()) {
int new_pbuf_size = m_pbuffer_size;
if (size().width() > m_pbuffer_size ||
size().height() > m_pbuffer_size)
new_pbuf_size *= 2;
if (size().width() < m_pbuffer_size/2 &&
size().height() < m_pbuffer_size/2)
new_pbuf_size /= 2;
if (!m_pbuffer || new_pbuf_size != m_pbuffer_size) {
if (m_pbuffer) {
m_pbuffer->deleteTexture(m_base_tex);
m_pbuffer->deleteTexture(m_compositing_tex);
delete m_pbuffer;
}
m_pbuffer = new QGLPixelBuffer(QSize(new_pbuf_size, new_pbuf_size), QGLFormat::defaultFormat(), glWidget());
m_pbuffer->makeCurrent();
m_base_tex = m_pbuffer->generateDynamicTexture();
m_compositing_tex = m_pbuffer->generateDynamicTexture();
m_pbuffer_size = new_pbuf_size;
}
if (size() != m_previous_size) {
m_previous_size = size();
QPainter p(m_pbuffer);
p.setCompositionMode(QPainter::CompositionMode_Source);
p.fillRect(QRect(0, 0, m_pbuffer->width(), m_pbuffer->height()), Qt::transparent);
drawBase(p);
p.end();
m_pbuffer->updateDynamicTexture(m_base_tex);
}
qreal x_fraction = width()/float(m_pbuffer->width());
qreal y_fraction = height()/float(m_pbuffer->height());
{
QPainter p(m_pbuffer);
p.setCompositionMode(QPainter::CompositionMode_Source);
p.fillRect(QRect(0, 0, m_pbuffer->width(), m_pbuffer->height()), Qt::transparent);
p.save(); // Needed when using the GL1 engine
p.beginNativePainting(); // Needed when using the GL2 engine
glBindTexture(GL_TEXTURE_2D, m_base_tex);
glEnable(GL_TEXTURE_2D);
glColor4f(1.,1.,1.,1.);
glBegin(GL_QUADS);
{
glTexCoord2f(0, 1.0);
glVertex2f(0, 0);
glTexCoord2f(x_fraction, 1.0);
glVertex2f(width(), 0);
glTexCoord2f(x_fraction, 1.0-y_fraction);
glVertex2f(width(), height());
glTexCoord2f(0, 1.0-y_fraction);
glVertex2f(0, height());
}
glEnd();
glDisable(GL_TEXTURE_2D);
p.endNativePainting(); // Needed when using the GL2 engine
p.restore(); // Needed when using the GL1 engine
drawSource(p);
p.end();
m_pbuffer->updateDynamicTexture(m_compositing_tex);
}
painter->beginNativePainting(); // Needed when using the GL2 engine
glWidget()->makeCurrent(); // Needed when using the GL1 engine
glBindTexture(GL_TEXTURE_2D, m_compositing_tex);
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
glColor4f(1.,1.,1.,1.);
glBegin(GL_QUADS);
{
glTexCoord2f(0, 1.0);
glVertex2f(0, 0);
glTexCoord2f(x_fraction, 1.0);
glVertex2f(width(), 0);
glTexCoord2f(x_fraction, 1.0-y_fraction);
glVertex2f(width(), height());
glTexCoord2f(0, 1.0-y_fraction);
glVertex2f(0, height());
}
glEnd();
glDisable(GL_TEXTURE_2D);
painter->endNativePainting(); // Needed when using the GL2 engine
} else
#endif
{
// using a QImage
if (m_buffer.size() != size()) {
m_buffer = QImage(size(), QImage::Format_ARGB32_Premultiplied);
m_base_buffer = QImage(size(), QImage::Format_ARGB32_Premultiplied);
m_base_buffer.fill(0);
QPainter p(&m_base_buffer);
drawBase(p);
}
memcpy(m_buffer.bits(), m_base_buffer.bits(), m_buffer.byteCount());
{
QPainter p(&m_buffer);
drawSource(p);
}
painter->drawImage(0, 0, m_buffer);
}
}
