void TupLuminancePicker::paintEvent(QPaintEvent *)
{
int w = width() - 5;
QRect r(0, foff, w, height() - 2*foff);
int wi = r.width() - 2;
int hi = r.height() - 2;
if (!k->pix || k->pix->height() != hi || k->pix->width() != wi) {
delete k->pix;
QImage img(wi, hi, QImage::Format_RGB32);
int y;
for (y = 0; y < hi; y++) {
QColor c;
c.setHsv(k->hue, k->sat, y2val(y+coff));
QRgb r = c.rgb();
int x;
for (x = 0; x < wi; x++)
img.setPixel(x, y, r);
}
k->pix = new QPixmap(QPixmap::fromImage(img));
}
QPainter p(this);
p.drawPixmap(1, coff, *k->pix);
const QPalette &g = palette();
qDrawShadePanel(&p, r, g, true);
p.setPen(g.foreground().color());
p.setBrush(g.foreground());
QPolygon a;
int y = val2y(k->value);
a.setPoints(3, w, y, w+5, y+5, w+5, y-5);
p.eraseRect(w, 0, 5, height());
p.drawPolygon(a);
}
// ****************************************************************************
// 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 ColorLuminancePicker::paintEvent(QPaintEvent* /*event*/) {
int w = width() - 5;
QRect r(0, foff, w, height() - 2*foff);
int wi = r.width() - 2;
int hi = r.height() - 2;
if (wi <= 1 || hi <= 1)
return;
if ((pix_ == 0) || (pix_->height() != hi) || (pix_->width() != wi)) {
if (!pix_)
delete pix_;
QImage img(wi, hi, QImage::Format_RGB32);
for (int y = 0 ; y < hi ; ++y) {
QColor c;
c.setHsv(hue_, sat_, y2val(y+coff));
QRgb r = c.rgb();
for (int x = 0 ; x < wi ; ++x)
img.setPixel(x, y, r);
}
pix_ = new QPixmap(QPixmap::fromImage(img));
}
// color bar
QPainter p(this);
p.drawPixmap(1, coff, *pix_);
const QPalette &g = palette();
qDrawShadePanel(&p, r, g, true);
p.setPen(g.foreground().color());
p.setBrush(g.foreground());
// arrow
QPolygon a;
int y = val2y(val_);
a.setPoints(3, w, y, w+5, y+5, w+5, y-5);
p.eraseRect(w, 0, 5, height());
p.drawPolygon(a);
}
void YviColorLuminancePicker::paintEvent(QPaintEvent *)
{
int w = width() - 5;
QRect r(0, foff, w, height() - 2*foff);
int wi = r.width() - 2;
int hi = r.height() - 2;
if (!pix || pix->height() != hi || pix->width() != wi) {
delete pix;
QImage img(wi, hi, QImage::Format_RGB32);
int y;
uint *pixel = (uint *) img.scanLine(0);
for (y = 0; y < hi; y++) {
const uint *end = pixel + wi;
while (pixel < end) {
QColor c;
c.setHsv(hue, sat, y2val(y+coff));
*pixel = c.rgb();
++pixel;
}
}
pix = new QPixmap(QPixmap::fromImage(img));
}
QPainter p(this);
p.drawPixmap(1, coff, *pix);
const QPalette &g = palette();
qDrawShadePanel(&p, r, g, true);
p.setPen(g.foreground().color());
p.setBrush(g.foreground());
QPolygon a;
int y = val2y(val);
a.setPoints(3, w, y, w+5, y+5, w+5, y-5);
p.eraseRect(w, 0, 5, height());
p.drawPolygon(a);
}
void TupLuminancePicker::mousePressEvent(QMouseEvent *event)
{
setValue(y2val(event->y()));
}
void ColorLuminancePicker::mousePressEvent(QMouseEvent* event) {
emit toggleInteractionMode(true);
setVal(y2val(event->y()));
}
void ColorLuminancePicker::mouseMoveEvent(QMouseEvent* event) {
setVal(y2val(event->y()));
}
void YviColorLuminancePicker::mousePressEvent(QMouseEvent *m)
{
setVal(y2val(m->y()));
}
