Labrador/Desktop_Interface/ui_elements/esposlider.cpp

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//Known issues:
//Memory leak
//Must be called by main window or labels can disappear.
#include "esposlider.h"
#define MIN(a,b) (((a)<(b))?(a):(b))
espoSlider::espoSlider(QWidget *parent) : QSlider(parent)
{
windowPointer = parent;
labelMargin = 3;
}
bool espoSlider::setTickLabel(QString label, int position)
{
if (position > maxTick()){
//qDebug() << "Tried to label tick at position " << position << "but ticks range from 0 to " << maxTick();
return true;
}
QLabel * working = addressBook.at(position);
working->setText(label);
working->setGeometry(QRect(0, 0, 100, 12));
//qDebug() << "Set Geometry of QLabel" << working;
working->show();
return false;
}
void espoSlider::resizeEvent(QResizeEvent *event){
this->debug_var++;
//qDebug() << "move/resize event" << debug_var;
rearrange();
}
void espoSlider::moveEvent(QMoveEvent *event){
this->debug_var++;
//qDebug() << "move/resize event" << debug_var;
rearrange();
}
void espoSlider::setTickInterval(int ti){
addressBook.resize(maxTick(ti) + 1, NULL); //Leaky, but not significantly. Old qlabels never deleted.
for (int i=0; i<addressBook.size();i++){
if (addressBook.at(i)==NULL)
addressBook.at(i) = new QLabel(windowPointer);
}
QSlider::setTickInterval(ti);
return;
}
int espoSlider::maxTick(){
if (this->tickInterval() == 0){
return 0;
}
return (this->maximum() - this-> minimum() + 1) / (this->tickInterval());
}
int espoSlider::maxTick(int ti){
if (ti == 0){
return 0;
}
return (this->maximum() - this-> minimum() + 1) / ti;
}
void espoSlider::rearrange(){
QLabel *working;
int k = 7;
int c = 5;
int left = this->geometry().left();
int right = this->geometry().right();
int top = this->geometry().top();
int bottom = this->geometry().bottom();
int height = bottom - top;
int internalHeight = height-c-k;
int margin = (width()/3) - 6;
//qDebug() << "left = " << left << "right = " << right << "top = " << top << "bottom = " << bottom << "height = " << height << "internalHeight = " << internalHeight << "margin = " << margin;
//qDebug() << "maxTick() =" << maxTick();
if (addressBook.size() > 1)
for (int i=addressBook.size()-1; i>0; i--){
working = addressBook.at(i);
working->setGeometry(QRect(right-margin+labelMargin, top + c + (internalHeight * i * this->tickInterval()) / (this->maximum() - this->minimum()) - 5, 100, k*2));
}
working = addressBook.at(0);
working->setGeometry(QRect(right-margin+labelMargin, top + c - 5, 100, k*2));
}
void espoSlider::selfMoved(int newval)
{
QString newstring;
newstring.setNum((double) newval/20, 'f', 2);
//qDebug() << newstring;
voltageChanged(((double) newval) / 20);
lcdOut(newstring);
return;
}
void espoSlider::poke(void){
//qDebug() << "Refreshing to voltage" << ((double) (this->value())) / 20;
voltageChanged(((double) (this->value())) / 20);
}