mirror of https://github.com/VDR4Arch/vdr.git
136 lines
3.1 KiB
C
136 lines
3.1 KiB
C
/*
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* sources.c: Source handling
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*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
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*
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* $Id: sources.c 3.6 2014/03/09 12:05:42 kls Exp $
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*/
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#include "sources.h"
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// --- cSource ---------------------------------------------------------------
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cSource::cSource(void)
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{
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code = stNone;
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description = NULL;
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}
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cSource::cSource(char Source, const char *Description)
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{
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code = int(Source) << 24;
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description = strdup(Description);
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}
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cSource::~cSource()
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{
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free(description);
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}
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bool cSource::Parse(const char *s)
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{
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char *codeBuf = NULL;
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if (2 == sscanf(s, "%m[^ ] %m[^\n]", &codeBuf, &description))
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code = FromString(codeBuf);
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free(codeBuf);
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return code != stNone && description && *description;
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}
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bool cSource::Matches(int Code1, int Code2)
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{
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if (Code1 == (stSat | st_Any))
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return IsSat(Code2);
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return Code1 == Code2;
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}
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int cSource::Position(int Code)
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{
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int n = (Code & st_Pos);
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if (n > 0x00007FFF)
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n |= 0xFFFF0000;
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return n;
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}
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cString cSource::ToString(int Code)
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{
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char buffer[16];
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char *q = buffer;
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*q++ = (Code & st_Mask) >> 24;
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if (int n = Position(Code)) {
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q += snprintf(q, sizeof(buffer) - 2, "%u.%u", abs(n) / 10, abs(n) % 10); // can't simply use "%g" here since the silly 'locale' messes up the decimal point
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*q++ = (n < 0) ? 'W' : 'E';
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}
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*q = 0;
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return buffer;
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}
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int cSource::FromString(const char *s)
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{
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if (!isempty(s)) {
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if ('A' <= *s && *s <= 'Z') {
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int code = int(*s) << 24;
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if (code == stSat) {
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int pos = 0;
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bool dot = false;
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bool neg = false;
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while (*++s) {
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switch (*s) {
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case '0' ... '9': pos *= 10;
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pos += *s - '0';
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break;
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case '.': dot = true;
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break;
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case 'W': neg = true; // fall through to 'E'
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case 'E': if (!dot)
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pos *= 10;
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break;
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default: esyslog("ERROR: unknown source character '%c'", *s);
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return stNone;
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}
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}
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if (neg)
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pos = -pos;
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code |= (pos & st_Pos);
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}
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return code;
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}
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else
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esyslog("ERROR: unknown source key '%c'", *s);
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}
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return stNone;
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}
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int cSource::FromData(eSourceType SourceType, int Position, bool East)
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{
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int code = SourceType;
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if (SourceType == stSat) {
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if (!East)
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Position = -Position;
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code |= (Position & st_Pos);
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}
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return code;
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}
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// --- cSources --------------------------------------------------------------
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cSources Sources;
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cSource *cSources::Get(int Code)
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{
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for (cSource *p = First(); p; p = Next(p)) {
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if (p->Code() == Code)
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return p;
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}
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return NULL;
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}
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bool cSources::ContainsSourceType(char SourceType)
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{
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for (cSource *p = First(); p; p = Next(p)) {
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if (cSource::ToChar(p->Code()) == SourceType)
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return true;
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}
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return false;
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}
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