Problem with spinbox?
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This is the code
@main.cpp
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;int min = 0; int max = 100; QPixmap pixmap(":/simple_track_bar.png"); QPixmap pixmap1(":/simple_track_thumb.png"); QRect rect(50,60,4,118); MBSlider *mb3 = new MBSlider(min, max, pixmap, pixmap1,rect,false,&w); QSpinBox *spinBox3 = new QSpinBox; spinBox3->setRange(0, 100); QObject::connect(spinBox3, SIGNAL(valueChanged(int)),mb3, SLOT(setValue2(int))); QObject::connect(mb3, SIGNAL(sliderMoved(int)),spinBox3, SLOT(setValue(int)));@
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mbslider.cppMBSlider::MBSlider(int min,
int max,
QPixmap image,
QPixmap image1,
QRect rect1,
bool mode,
QWidget *parent) :
QAbstractSlider(parent)
{
rect = rect1;setRange (min, max); valuePos = minimum (); valuePos_vertical = minimum (); pixmap = image; pixmap1 = image1; QColor color(Qt::white); pixmap.setMask (pixmap.createMaskFromColor (color, Qt::MaskInColor)); this->setGeometry (rect); slider_mode = mode; if (slider_mode) { draw_horizontal_slider (); } else { draw_vertical_slider (); } this->repaint ();}
MBSlider::~MBSlider()
{
}
void MBSlider::draw_vertical_slider ()
{
this->setOrientation (Qt::Vertical);
if (pixmap.width () > pixmap1.width ()) {
mid_pos = ((pixmap.width () >> 1) - (pixmap1.width ()>> 1));
this->setFixedSize (pixmap.width (), rect.height ());
} else {
mid_pos = ((pixmap1.width () >> 1) - (pixmap.width ()>>1));
this->setFixedSize (pixmap1.width (), rect.height ());
}pos_width = (rect.height () - (pixmap1.height ())); newPos = pos_width;}
void MBSlider::draw_horizontal_slider ()
{
newPos = 0;
this->setOrientation(Qt::Horizontal);
if (pixmap1.height () > pixmap.height ()) {
this->setFixedSize (rect.width (), pixmap1.height ());
mid_pos = ((pixmap1.height() >> 1) - (pixmap.height () >> 1));
} else {
this->setFixedSize (rect.width (), pixmap.height ());
mid_pos = ((pixmap.height () >> 1) - (pixmap1.height () >> 1));
}pos_width = (rect.width () - (pixmap1.width ()));}
void MBSlider::mousePressEvent ( QMouseEvent * event ){
if (event->button() == Qt::LeftButton) {if (slider_mode) { newPos = event->x (); } else { newPos = event->y (); } calcNewValue(); if (slider_mode) { emit sliderMoved(valuePos); } else { emit sliderMoved (valuePos_vertical); } repaint(); } QAbstractSlider::mousePressEvent (event);}
void MBSlider::keyPressEvent (QKeyEvent *event)
{
qDebug ()<<"key pressed";
// Check whether the key entered is a enter key or not.
if (slider_mode) {
// Check for horizontal slider.
if (event->key () == Qt::Key_Right ) {
event->accept ();
newPos = newPos + 1;
calcNewValue ();
emit sliderMoved (valuePos);
this->repaint ();
} else if (event->key () == Qt::Key_Left) {
event->accept ();
newPos = newPos - 1;
calcNewValue ();
emit sliderMoved (valuePos);
this->repaint ();
}
} else {
if (event->key () == Qt::Key_Up) {
event->accept ();
newPos = newPos - 1;
calcNewValue ();
emit sliderMoved (valuePos);
this->repaint ();
} else if (event->key () == Qt::Key_Down){
event->accept ();
newPos = newPos + 1;
calcNewValue ();
emit sliderMoved (valuePos);
this->repaint ();
}
}
}void MBSlider::mouseMoveEvent ( QMouseEvent * event )
{
if (event->buttons() & Qt::LeftButton) {
is_down = true;
if (orientation() == Qt::Horizontal) {
newPos = event->x();
} else {
newPos = event->y ();
}
calcNewValue();
if (slider_mode) {
emit sliderMoved(valuePos);
} else {
emit sliderMoved (valuePos_vertical);
}
}
repaint();
QAbstractSlider::mouseMoveEvent (event);
}void MBSlider::paintEvent ( QPaintEvent * event )
{
QPainter painter(this);
QRectF center;
int draw_pos;
int new_pos;if (slider_mode) { // Draw horizontal slider. draw_pos = newPos + (pixmap1.width () >> 1); ..................................................................................}
int MBSlider::getValue()
{
int value_pos;if (slider_mode) { value_pos = valuePos; } else { value_pos = valuePos_vertical; } return value_pos;}
void MBSlider::calcNewValue()
{
if (newPos > pos_width) {
newPos = pos_width;
} else if (newPos < 0) {
newPos = 0;
}
qDebug ()<<valuePos<<"valuepos";
qDebug ()<<newPos<< "new POs";
valuePos = (((float (maximum () - minimum ()) ) / pos_width) * newPos) + minimum ();if (!slider_mode) { valuePos_vertical = minimum () + (maximum () - valuePos); }}
void MBSlider::setValue2(int v)
{
// Work for all range with all pixels.
//calcNewValue();if (slider_mode) { valuePos = v; emit valueChanged (valuePos); emit sliderMoved (valuePos); newPos = (float(valuePos - this->minimum ()) / (this->maximum() - this->minimum ()) * pos_width); this->repaint(); } else { valuePos = minimum() + (maximum () - v); newPos = (float(valuePos - this->minimum ())/(this->maximum () - this->minimum ()) * pos_width); emit valueChanged (v); emit sliderMoved (v); this->repaint (); }}
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Not sure I'm getting the problem, but does not
@mb3->setFocus();@solve it? You are asking, if I get it right, that the spin box does not have the focus initially.
Moreover, the problem you are trying to face here is the cause of "another problem you posted":http://developer.qt.nokia.com/forums/viewthread/11629/. You should try to solve one per time (in my opinion).