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#include "TGMenu.h"
#include "KeySymbols.h"
#include "TVirtualX.h"
class FWPopupMenu : public TGPopupMenu {
public:
FWPopupMenu(const TGWindow* p = nullptr, UInt_t w = 10, UInt_t h = 10, UInt_t options = 0)
: TGPopupMenu(p, w, h, options) {
AddInput(kKeyPressMask);
}
// virtual void PlaceMenu(Int_t x, Int_t y, Bool_t stick_mode, Bool_t grab_pointer)
// {
// TGPopupMenu::PlaceMenu(x, y, stick_mode, grab_pointer);
// gVirtualX->GrabKey(fId, 0l, kAnyModifier, kTRUE);
// }
void PoppedUp() override {
TGPopupMenu::PoppedUp();
gVirtualX->SetInputFocus(fId);
gVirtualX->GrabKey(fId, 0l, kAnyModifier, kTRUE);
}
void PoppedDown() override {
gVirtualX->GrabKey(fId, 0l, kAnyModifier, kFALSE);
TGPopupMenu::PoppedDown();
}
Bool_t HandleKey(Event_t* event) override {
if (event->fType != kGKeyPress)
return kTRUE;
UInt_t keysym;
char tmp[2];
gVirtualX->LookupString(event, tmp, sizeof(tmp), keysym);
TGMenuEntry* ce = fCurrent;
switch (keysym) {
case kKey_Up: {
if (ce)
ce = (TGMenuEntry*)GetListOfEntries()->Before(ce);
while (ce && ((ce->GetType() == kMenuSeparator) || (ce->GetType() == kMenuLabel) ||
!(ce->GetStatus() & kMenuEnableMask))) {
ce = (TGMenuEntry*)GetListOfEntries()->Before(ce);
}
if (!ce)
ce = (TGMenuEntry*)GetListOfEntries()->Last();
Activate(ce);
break;
}
case kKey_Down: {
if (ce)
ce = (TGMenuEntry*)GetListOfEntries()->After(ce);
while (ce && ((ce->GetType() == kMenuSeparator) || (ce->GetType() == kMenuLabel) ||
!(ce->GetStatus() & kMenuEnableMask))) {
ce = (TGMenuEntry*)GetListOfEntries()->After(ce);
}
if (!ce)
ce = (TGMenuEntry*)GetListOfEntries()->First();
Activate(ce);
break;
}
case kKey_Enter:
case kKey_Return: {
Event_t ev;
ev.fType = kButtonRelease;
ev.fWindow = fId;
return HandleButton(&ev);
}
case kKey_Escape: {
fCurrent = nullptr;
void* dummy = nullptr;
return EndMenu(dummy);
}
default: {
break;
}
}
return kTRUE;
}
};
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