// ****************************************************************************
// Method: QvisScribbleOpacityBar::setValues
//
// Purpose:
//
//
// Programmer: Jeremy Meredith
// Creation: January 31, 2001
//
// ****************************************************************************
void
QvisScribbleOpacityBar::setValues(int x1, int y1, int x2, int y2)
{
if (x1==x2)
{
setValue(x2val(x2), y2val(y2));
return;
}
int xdiff = abs(x2 - x1) + 1;
int step = (x1 < x2) ? 1 : -1;
float slope = float(y2 - y1) / float (x2 - x1);
for (int i=0; i<xdiff; i++)
setValue(x2val(x1 + i*step),
y2val(y1 + int(float(i)*slope*step)));
}
// ****************************************************************************
// Method: QvisScribbleOpacityBar::mousePressEvent
//
// Purpose:
//
//
// Programmer: Jeremy Meredith
// Creation: January 31, 2001
//
// ****************************************************************************
void
QvisScribbleOpacityBar::mousePressEvent(QMouseEvent *e)
{
int _x = e->x();
int _y = e->y();
setValue(x2val(_x), y2val(_y));
lastx = _x;
lasty = _y;
mousedown = true;
this->repaint();
}
void HSVRangeDisplay::updateImage()
{
m_width = width();
m_height = height();
//printf("HSVRangeDisplay::updateImage(): %d x %d\n", m_width, m_height);
m_image = QImage(m_width, m_height, QImage::Format_RGB16);
if (!m_width || !m_height) return;
for (int y = 0; y < m_height; y++) {
uint16 hue = y2hue(y);
uint16 *dest = (uint16*) m_image.scanLine(y);
for (int x = 0; x < m_width/2; x++) {
*dest++ = HSV(hue, x2sat(x), 255).toPixel<Pixel565>().rgb;
}
for (int x = m_width/2; x < m_width; x++) {
*dest++ = HSV(hue, 255, x2val(x)).toPixel<Pixel565>().rgb;
}
}
}
