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#include <syslog.h>
#include "variable.h"
#include "skin.h"
#include "function.h"
namespace GLCD
{
cSkinVariable::cSkinVariable(cSkin * Parent)
: mSkin(Parent),
mValue(0),
mCondition(NULL),
mFunction(NULL),
mDummyDisplay(mSkin),
mDummyObject(&mDummyDisplay),
mEvalMode(tevmTick),
mEvalInterval(0),
mTimestamp(0)
{
}
bool cSkinVariable::ParseEvalMode(const std::string & Text)
{
if (Text == "always") {
mEvalMode = tevmAlways;
} else if (Text == "tick") {
mEvalMode = tevmTick;
} else if (Text == "switch") {
mEvalMode = tevmSwitch;
} else if (Text == "once") {
mEvalMode = tevmOnce;
} else if (Text.length() > 9 && Text.substr(0,9) == "interval:") {
char * e;
const char * t = Text.substr(9).c_str();
long l = strtol(t, &e, 10);
if ( ! (e == t || *e != '\0') && (l >= 100))
{
mEvalInterval = (int) l;
mEvalMode = tevmInterval;
return true;
}
return false;
} else {
return false;
}
return true;
}
bool cSkinVariable::ParseValue(const std::string & Text)
{
if (isalpha(Text[0]) || Text[0] == '#' || Text[0] == '{')
{
//delete mFunction;
mFunction = new cSkinFunction(&mDummyObject);
if (mFunction->Parse(Text))
{
if (mEvalMode == tevmOnce) {
mValue = mFunction->Evaluate();
delete mFunction;
mFunction = NULL;
}
//mValue = func->Evaluate();
//delete func;
return true;
}
delete mFunction;
mFunction = NULL;
}
else if (Text[0] == '\'')
{
mValue = Text.substr(1, Text.length() - 2);
return true;
}
char * e;
const char * t = Text.c_str();
long l = strtol(t, &e, 10);
if (e == t || *e != '\0')
{
return false;
}
mValue = l;
return true;
}
bool cSkinVariable::ParseCondition(const std::string & Text)
{
cSkinFunction *result = new cSkinFunction(&mDummyObject);
if (result->Parse(Text))
{
delete mCondition;
mCondition = result;
return true;
}
return false;
}
const cType & cSkinVariable::Value(void)
{
if ( mTimestamp > 0 &&
( ( mEvalMode == tevmTick && mTimestamp >= mSkin->GetTSEvalTick() ) ||
( mEvalMode == tevmSwitch && mTimestamp >= mSkin->GetTSEvalSwitch() ) ||
( mEvalMode == tevmInterval && (mTimestamp + (uint64_t)mEvalInterval) > mSkin->Config().Now())
)
)
{
return mValue;
}
if (mFunction != NULL) {
mValue = mFunction->Evaluate();
// should've been solved in ParseValue already, just to be sure ...
if (mEvalMode == tevmOnce) {
delete mFunction;
mFunction = NULL;
}
}
if (mEvalMode == tevmTick || mEvalMode == tevmSwitch || mEvalMode == tevmInterval) {
mTimestamp = mSkin->Config().Now();
}
return mValue;
}
cSkinVariables::cSkinVariables(void)
{
}
cSkinVariables::~cSkinVariables()
{
iterator it = begin();
while (it != end())
{
delete (*it);
it++;
}
}
} // end of namespace
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