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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include "InputReceiver.h"
#include "Lua/LuaInputReceiver.h"
#include "Rendering/GL/myGL.h"
float CInputReceiver::guiAlpha = 0.8f;
CInputReceiver* CInputReceiver::activeReceiver = nullptr;
CInputReceiver::CInputReceiver(Where w)
{
switch (w) {
case FRONT: { GetReceivers().push_front(this); } break;
case BACK: { GetReceivers().push_back(this); } break;
default: {} break;
}
}
CInputReceiver::~CInputReceiver()
{
if (activeReceiver == this)
activeReceiver = nullptr;
for (CInputReceiver*& r: GetReceivers()) {
if (r == this) {
// we may be deleted while there are still iterators active
// inputReceivers.erase(ri);
r = nullptr;
break;
}
}
}
void CInputReceiver::CollectGarbage()
{
// remove dead receivers
std::deque<CInputReceiver*>& prvInputReceivers = GetReceivers();
std::deque<CInputReceiver*> nxtInputReceivers;
for (CInputReceiver* r: prvInputReceivers) {
if (r == nullptr)
continue;
nxtInputReceivers.push_back(r);
}
prvInputReceivers.swap(nxtInputReceivers);
}
void CInputReceiver::DrawReceivers()
{
std::deque<CInputReceiver*>& receivers = GetReceivers();
// draw back to front
for (auto it = receivers.rbegin(); it != receivers.rend(); ++it) {
CInputReceiver* r = *it;
if (r == nullptr)
continue;
r->Draw();
}
}
CInputReceiver* CInputReceiver::GetReceiverAt(int x, int y)
{
// always ask Lua first
if (luaInputReceiver != nullptr && luaInputReceiver->IsAbove(x, y))
return luaInputReceiver;
for (CInputReceiver* recv: GetReceivers()) {
if (recv == nullptr)
continue;
if (!recv->IsAbove(x, y))
continue;
return recv;
}
return nullptr;
}
bool CInputReceiver::InBox(float x, float y, const TRectangle<float>& box) const
{
return ((x > box.x1) && (x < box.x2) && (y > box.y1) && (y < box.y2));
}
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