/*
* Title: BGraphControl.cpp
* Author: M.Thomas BEAM Ltd
* Date: 2007-05-31
*
* Contents:
*
*
*/
#include <BGraphControls.h>
#include <qlayout.h>
#include <Debug.h>
BGraphControlBasic::BGraphControlBasic(QWidget *p) : QWidget(p) {
QHBoxLayout* h = new QHBoxLayout(this);
omax = 100;
h->setSpacing(5);
h->setMargin(5);
oscroll = new QScrollBar(Qt::Horizontal,this);
ozoomIn = new QPushButton("Zoom In",this,"");
ozoomOut = new QPushButton("Zoom Out",this,"");
oscroll->setMaxValue(1000);
oscroll->setMinValue(0);
h->addWidget(oscroll);
h->addWidget(ozoomIn);
h->addWidget(ozoomOut);
ozoomOut->setMaximumWidth(70);
ozoomIn->setMaximumWidth(70);
connect(oscroll,SIGNAL(valueChanged(int)),this,SLOT(scroll()));
connect(ozoomOut,SIGNAL(clicked()),this,SLOT(zoomOut()));
connect(ozoomIn,SIGNAL(clicked()),this,SLOT(zoomIn()));
#ifdef ZAP
connect(plot,SIGNAL(zoomEvent()),this,SLOT(updateScrollbar()));
connect(plot,SIGNAL(scrollEvent()),this,SLOT(updateScrollbar()));
connect(plot,SIGNAL(initControls()),this,SLOT(updateScrollbar()));
#endif
}
void BGraphControlBasic::addGraph(BGraph* graph) {
ographs.append(graph);
}
void BGraphControlBasic::setMax(double max) {
omax = max;
updateScrollbar();
}
void BGraphControlBasic::zoomIn() {
zoom(1);
}
void BGraphControlBasic::zoomOut() {
zoom(0);
}
void BGraphControlBasic::zoom(int in) {
BIter i;
double oldMin = 0;
double oldMax = 0;
double oldRange = 0;
double newRange = 0;
double newMin = 0;
double newMax = 0;
for (ographs.start(i);! ographs.isEnd(i);ographs.next(i)) {
ographs[i]->getXRange(oldMin,oldMax);
oldRange = oldMax - oldMin;
if (in)
newRange = oldRange/2;
else
newRange = oldRange * 2;
if (newRange < 16)
newRange = 16;
if (newRange > omax)
newRange = omax;
newMin = oldMin;
newMax = oldMin + newRange;
if (newMax > omax) {
newMax = omax;
newMin = omax - newRange;
}
ographs[i]->setXRange(newMin,newMax);
}
if (gdebug & 0xffff) {
printf("zoomMe\n");
printf("omax (%f) oldMin (%f) oldMax (%f) oldRange (%f)\n",omax,oldMin,oldMax,oldRange);
printf("omax (%f) newMin (%f) newMax (%f) newRange (%f)\n",omax,newMin,newMax,newRange);
}
updateScrollbar();
}
void BGraphControlBasic::scroll(int val) {
oscroll->setValue(oscroll->value() + val);
scroll();
}
void BGraphControlBasic::scroll() {
BIter i;
double oldMin = 0,oldMax = 0;
double newMin = 0,newMax = 0;
double range = 0;
for (ographs.start(i);! ographs.isEnd(i);ographs.next(i)) {
ographs[i]->getXRange(oldMin,oldMax);
range = oldMax - oldMin;
newMin = oscroll->value();
newMax = newMin + range;
if (newMax > omax) {
newMax = omax;
newMin = omax - range;
}
ographs[i]->setXRange(newMin,newMax);
}
if (gdebug & 0x1000) {
printf("ScrollMe (%d)\n",oscroll->value());
printf("omax (%f) oldmin (%f) oldmax (%f) nmin (%f) nmax (%f)\n",omax,oldMin,oldMax,newMin,newMax);
}
}
void BGraphControlBasic::updateScrollbar() {
double min,max;
int page;
int smax;
int range;
ographs[ographs.end()]->getXRange(min,max);
range = (int)(max - min);
page = range;
smax = (int)(omax - range);
if (gdebug & 0x1000) {
printf("Update Scrollbar - value (%d) page (%d) smax (%d)\n",(int)min,page,smax);
printf("omax (%f) min (%f) max (%f)\n",omax,min,max);
}
disconnect(oscroll,SIGNAL(valueChanged(int)),this,SLOT(scroll()));
oscroll->setValue((int)min);
oscroll->setMaxValue(smax);
oscroll->setPageStep(page);
connect(oscroll,SIGNAL(valueChanged(int)),this,SLOT(scroll()));
}
