Exemple #1
0
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);
}
Exemple #6
0
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()));
}