//______________________________________________________________________________
void KVCanvas::HandleInput(EEventType event, Int_t px, Int_t py)
{
// Handle Input Events.
//
// Handle input events, like button up/down in current canvas.
if (fFreezed) return;
TPad* pad;
TPad* prevSelPad = (TPad*) fSelectedPad;
TObject* prevSelObj = fSelected;
fPadSave = (TPad*)gPad;
cd(); // make sure this canvas is the current canvas
fEvent = event;
fEventX = px;
fEventY = py;
Int_t sign = 0;
Bool_t sendOrder = true;
if (fHasDisabledClasses && fSelected) {
if (fDisabledClasses.Contains(fSelected->ClassName())) sendOrder = false;
}
if (fHasDisabledObject && fSelected) {
if (fDisabledObjects.Contains(fSelected)) sendOrder = false;
}
switch (event) {
case kMouseMotion:
// highlight object tracked over
pad = Pick(px, py, prevSelObj);
if (!pad) return;
EnterLeave(prevSelPad, prevSelObj);
gPad = pad; // don't use cd() we will use the current
// canvas via the GetCanvas member and not via
// gPad->GetCanvas
if (sendOrder) fSelected->ExecuteEvent(event, px, py);
RunAutoExec();
if (fAgeOfEmpire && (fSelected->InheritsFrom("TH2"))) {
TH2* TheHisto = (TH2*) FindHisto();//fSelected;
Double_t size = 0.4 - 0.35 * fVenerMode;
Int_t dX = 0;
Int_t dY = 0;
Double_t ppx = AbsPixeltoX(px);
Double_t ppy = AbsPixeltoY(py);
TAxis* ax = TheHisto->GetXaxis();
Int_t X0 = ax->GetFirst();
Int_t X1 = ax->GetLast();
Int_t NbinsX = ax->GetNbins();
px = ax->FindBin(ppx);
Double_t ddX = (X1 + X0) * 0.5 - px;
Double_t distX = TMath::Abs(ddX) / (X1 - X0);
if (distX >= 0.5) return;
TAxis* ay = TheHisto->GetYaxis();
Int_t Y0 = ay->GetFirst();
Int_t Y1 = ay->GetLast();
Int_t NbinsY = ay->GetNbins();
py = ay->FindBin(ppy);
Double_t ddY = (Y1 + Y0) * 0.5 - py;
Double_t distY = TMath::Abs(ddY) / (Y1 - Y0);
if (distY >= 0.5) return;
if ((distX <= size) && (distY <= size)) return;
dX = TMath::Nint(ddX * (0.05 + 0.05 * fVenerMode));
dY = TMath::Nint(ddY * (0.05 + 0.05 * fVenerMode));
if (TMath::Abs(dX) < 1) dX = TMath::Sign(1., ddX);
if (TMath::Abs(dY) < 1) dY = TMath::Sign(1., ddY);
Bool_t up = false;
if ((X0 - dX > 0) && (X1 - dX < NbinsX)) {
ax->SetRange(X0 - dX, X1 - dX);
up = true;
}
if ((Y0 - dY > 0) && (Y1 - dY < NbinsY)) {
ay->SetRange(Y0 - dY, Y1 - dY);
up = true;
}
if (up) {
Modified();
Update();
}
}
break;
case kMouseEnter:
// mouse enters canvas
if (!fDoubleBuffer) FeedbackMode(kTRUE);
break;
case kMouseLeave:
// mouse leaves canvas
{
// force popdown of tooltips
TObject* sobj = fSelected;
TPad* spad = fSelectedPad;
fSelected = 0;
fSelectedPad = 0;
EnterLeave(prevSelPad, prevSelObj);
fSelected = sobj;
fSelectedPad = spad;
if (!fDoubleBuffer) FeedbackMode(kFALSE);
}
break;
case kButton1Double:
// triggered on the second button down within 350ms and within
// 3x3 pixels of the first button down, button up finishes action
case kButton1Down:
// find pad in which input occured
pad = Pick(px, py, prevSelObj);
if (!pad) return;
gPad = pad; // don't use cd() because we won't draw in pad
// we will only use its coordinate system
if (fSelected) {
FeedbackMode(kTRUE); // to draw in rubberband mode
fSelected->ExecuteEvent(event, px, py);
RunAutoExec();
if (fSelected->InheritsFrom("TH2")) {
oldx = GetEventX();
oldy = GetEventY();
xmin = AbsPixeltoX(oldx);
ymin = AbsPixeltoY(oldy);
gVirtualX->DrawBox(XtoAbsPixel(xmin), YtoAbsPixel(ymin), oldx, oldy, TVirtualX::kHollow);
}
}
break;
case kButton1Motion:
if (fSelected) {
if (fSelected->InheritsFrom("TH2")) {
gVirtualX->DrawBox(XtoAbsPixel(xmin), YtoAbsPixel(ymin), oldx, oldy, TVirtualX::kHollow);
oldx = GetEventX();
oldy = GetEventY();
gVirtualX->DrawBox(XtoAbsPixel(xmin), YtoAbsPixel(ymin), oldx, oldy, TVirtualX::kHollow);
moved = true;
}
}
case kButton1ShiftMotion: //8 == kButton1Motion + shift modifier
if (fSelected) {
gPad = fSelectedPad;
if (sendOrder) fSelected->ExecuteEvent(event, px, py);
gVirtualX->Update();
if (!fSelected->InheritsFrom(TAxis::Class())) {
Bool_t resize = kFALSE;
if (fSelected->InheritsFrom(TBox::Class()))
resize = ((TBox*)fSelected)->IsBeingResized();
if (fSelected->InheritsFrom(TVirtualPad::Class()))
resize = ((TVirtualPad*)fSelected)->IsBeingResized();
if ((!resize && TestBit(kMoveOpaque)) || (resize && TestBit(kResizeOpaque))) {
gPad = fPadSave;
Update();
FeedbackMode(kTRUE);
}
}
RunAutoExec();
}
break;
case kButton1Up:
if (fSelected) {
gPad = fSelectedPad;
if (sendOrder) fSelected->ExecuteEvent(event, px, py);
RunAutoExec();
if (fPadSave)
gPad = fPadSave;
else {
gPad = this;
fPadSave = this;
}
if (fSelected->InheritsFrom("TH2") && moved && !fSelected->InheritsFrom("TH3")) {
xmax = AbsPixeltoX(GetEventX());
ymax = AbsPixeltoY(GetEventY());
Double_t toto = 0;
if (xmax < xmin) {
toto = xmax;
xmax = xmin;
xmin = toto;
}
if (ymax < ymin) {
toto = ymax;
ymax = ymin;
ymin = toto;
}
ZoomSelected((TH2*)FindHisto());
// ZoomSelected((TH2*)fSelected);
moved = false;
}
Update(); // before calling update make sure gPad is reset
}
break;
//*-*----------------------------------------------------------------------
case kButton2Down:
// find pad in which input occured
pad = Pick(px, py, prevSelObj);
if (!pad) return;
gPad = pad; // don't use cd() because we won't draw in pad
// we will only use its coordinate system
FeedbackMode(kTRUE);
if (!fSelected->InheritsFrom("TH1")) fSelected->Pop(); // pop object to foreground
pad->cd(); // and make its pad the current pad
if (fSelected->InheritsFrom("TH2") && !fSelected->InheritsFrom("TH3")) {
// implement pan & scan
X0 = px;
Y0 = py; // u clikd here
theXaxis = ((TH2*)FindHisto())->GetXaxis();
theYaxis = ((TH2*)FindHisto())->GetYaxis();
NXbins = theXaxis->GetNbins(); // maximum bin number in X
NYbins = theYaxis->GetNbins(); // maximum bin number in Y
Xf1 = Xfirst0 = theXaxis->GetFirst(); // initial displayed bin range in X
Xl1 = Xlast0 = theXaxis->GetLast();
Yf1 = Yfirst0 = theYaxis->GetFirst(); // initial displayed bin range in Y
Yl1 = Ylast0 = theYaxis->GetLast();
// size of axes in pixels
Int_t pixelWidthX = gPad->XtoAbsPixel(gPad->GetUxmax()) - gPad->XtoAbsPixel(gPad->GetUxmin());
Int_t pixelWidthY = gPad->YtoAbsPixel(gPad->GetUymax()) - gPad->YtoAbsPixel(gPad->GetUymin());
// sizes of bins in pixels
NdisXbins = Xlast0 - Xfirst0 + 1;
NdisYbins = Ylast0 - Yfirst0 + 1;
XbinPixel = pixelWidthX / (1.0 * NdisXbins);
YbinPixel = pixelWidthY / (1.0 * NdisYbins);
}
if (gDebug)
printf("Current Pad: %s / %s\n", pad->GetName(), pad->GetTitle());
// loop over all canvases to make sure that only one pad is highlighted
{
TIter next(gROOT->GetListOfCanvases());
TCanvas* tc;
while ((tc = (TCanvas*)next()))
tc->Update();
}
/*if (pad->GetGLDevice() != -1 && fSelected)
fSelected->ExecuteEvent(event, px, py);*/
break; // don't want fPadSave->cd() to be executed at the end
case kButton2Motion:
//was empty!
if (fSelected && fSelected->InheritsFrom("TH2") && !fSelected->InheritsFrom("TH3")) {
// implement pan & scan
Int_t dX = px - X0; // how far have i moved ?
Int_t dY = py - Y0;
Int_t dXbins = dX / XbinPixel;
Int_t dYbins = dY / YbinPixel;
Bool_t changed = kFALSE;
Int_t newXfirst = Xfirst0 - dXbins;
Int_t newXlast;
if (newXfirst < 1) {
newXfirst = 1;
newXlast = NdisXbins;
} else {
newXlast = Xlast0 - dXbins;
if (newXlast > NXbins) {
newXlast = NXbins;
newXfirst = newXlast - NdisXbins + 1;
}
}
if (newXfirst != Xf1) {
Xf1 = newXfirst;
Xl1 = newXlast;
theXaxis->SetRange(Xf1, Xl1);
changed = kTRUE;
}
Int_t newYfirst = Yfirst0 - dYbins;
Int_t newYlast;
if (newYfirst < 1) {
newYfirst = 1;
newYlast = NdisYbins;
} else {
newYlast = Ylast0 - dYbins;
if (newYlast > NYbins) {
newYlast = NYbins;
newYfirst = newYlast - NdisYbins + 1;
}
}
if (newYfirst != Yf1) {
Yf1 = newYfirst;
Yl1 = newYlast;
theYaxis->SetRange(Yf1, Yl1);
changed = kTRUE;
}
if (changed) {
Modified();
Update();
}
}
case kButton2Up:
if (fSelected) {
gPad = fSelectedPad;
if (sendOrder) fSelected->ExecuteEvent(event, px, py);
RunAutoExec();
}
break;
case kButton2Double:
break;
//*-*----------------------------------------------------------------------
case kButton3Down:
// popup context menu
pad = Pick(px, py, prevSelObj);
if (!pad) return;
if (!fDoubleBuffer) FeedbackMode(kFALSE);
if (fContextMenu && !fSelected->TestBit(kNoContextMenu) && !pad->TestBit(kNoContextMenu) && !TestBit(kNoContextMenu)) {
if (sendOrder) fContextMenu->Popup(px, py, fSelected, this, pad);
else fSelected->ExecuteEvent(event, px, py);
}
break;
case kButton3Motion:
break;
case kButton3Up:
if (!fDoubleBuffer) FeedbackMode(kTRUE);
break;
case kButton3Double:
break;
case kKeyDown:
// Info("HandleInput","Key down: %d %d",px,py);
break;
case kKeyUp:
// Info("HandleInput","Key up: %d %d",px,py);
break;
case kKeyPress:
if (!fSelectedPad || !fSelected) return;
gPad = fSelectedPad; // don't use cd() because we won't draw in pad
// we will only use its coordinate system
fSelected->ExecuteEvent(event, px, py);
HandleKey(px, py);
RunAutoExec();
break;
case kButton1Shift:
// Try to select
pad = Pick(px, py, prevSelObj);
if (!pad) return;
EnterLeave(prevSelPad, prevSelObj);
gPad = pad; // don't use cd() we will use the current
// canvas via the GetCanvas member and not via
// gPad->GetCanvas
fSelected->ExecuteEvent(event, px, py);
RunAutoExec();
break;
case kWheelUp:
case kWheelDown:
pad = Pick(px, py, prevSelObj);
if (!pad) return;
sign = (event == kWheelUp ? 1 : -1);
gPad = pad;
if (fSelected->InheritsFrom("TAxis")) fSelected->ExecuteEvent(event, px, py);
else if (fSelected->InheritsFrom("TH2")) DynamicZoom(sign, px, py);
RunAutoExec();
break;
default:
break;
}
if (fPadSave && event != kButton2Down)
fPadSave->cd();
if (event != kMouseLeave) { // signal was already emitted for this event
ProcessedEvent(event, px, py, fSelected); // emit signal
DrawEventStatus(event, px, py, fSelected);
}
}
