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#include <qapplication.h>
#include "TVChannel.h"
bool TVChannel::s_TablesFilled = false;
QVector<TVChannel::FrequencyTableEntry> TVChannel::s_Channel2BaseFrequency[TVChannel::FrequencyGrid_MAX];
TVChannel::TVChannel()
{
Name = QString::null;
FrequencySystem = FrequencyGrid_INVALID;
Channel = 0;
Finetuning = 0;
ColorSystem = PAL_BG;
}
TVChannel::TVChannel(const TVChannel &org)
{
Name = org.Name;
FrequencySystem = org.FrequencySystem;
Channel = org.Channel;
Finetuning = org.Finetuning;
ColorSystem = org.ColorSystem;
}
TVChannel &TVChannel::operator =(const TVChannel &org)
{
// kkeep ListView parent
Name = org.Name;
FrequencySystem = org.FrequencySystem;
Channel = org.Channel;
Finetuning = org.Finetuning;
ColorSystem = org.ColorSystem;
return *this;
}
// private
/**
\brief Fill frequency base tables with names and frequencies
*/
void TVChannel::FillTables()
{
int i, j;
QString fname;
if (s_TablesFilled)
return;
s_Channel2BaseFrequency[European].resize(109); // Total number of channels for Europe
s_Channel2BaseFrequency[European].setAutoDelete(true);
for (i = 0; i < 109; i++)
{
s_Channel2BaseFrequency[European].insert(i, new FrequencyTableEntry());
}
j = 0;
for (i = 0; i < 3; i++) {
s_Channel2BaseFrequency[European][j ]->Name = fname.sprintf("VHF %d", 2 + i);
s_Channel2BaseFrequency[European][j++]->Frequency = 48.25 + 7.0 * i;
}
for (i = 0; i < 8; i++) {
s_Channel2BaseFrequency[European][j ]->Name = fname.sprintf("VHF %d", 5 + i);
s_Channel2BaseFrequency[European][j++]->Frequency = 175.25 + 7.0 * i;
}
/* The following set of frequencies make no sense at all. */
s_Channel2BaseFrequency[European][j ]->Name = tr("Italy A");
s_Channel2BaseFrequency[European][j++]->Frequency = 53.75;
s_Channel2BaseFrequency[European][j ]->Name = tr("Italy B");
s_Channel2BaseFrequency[European][j++]->Frequency = 62.25;
s_Channel2BaseFrequency[European][j ]->Name = tr("Italy C");
s_Channel2BaseFrequency[European][j++]->Frequency = 82.25;
s_Channel2BaseFrequency[European][j ]->Name = tr("Italy D");
s_Channel2BaseFrequency[European][j++]->Frequency = 175.25;
s_Channel2BaseFrequency[European][j ]->Name = tr("Italy E");
s_Channel2BaseFrequency[European][j++]->Frequency = 183.75;
s_Channel2BaseFrequency[European][j ]->Name = tr("Italy F");
s_Channel2BaseFrequency[European][j++]->Frequency = 192.25;
s_Channel2BaseFrequency[European][j ]->Name = tr("Italy G");
s_Channel2BaseFrequency[European][j++]->Frequency = 201.25;
s_Channel2BaseFrequency[European][j ]->Name = tr("Italy H");
s_Channel2BaseFrequency[European][j++]->Frequency = 210.25;
/* UHF band */
for (i = 0; i < 49; i++) {
s_Channel2BaseFrequency[European][j ]->Name = fname.sprintf("UHF %d", 21 + i);
s_Channel2BaseFrequency[European][j++]->Frequency = 471.25 + 8.0 * i;
}
/* Cable */
for (i = 0; i < 10; i++) {
s_Channel2BaseFrequency[European][j ]->Name = fname.sprintf("CATV S%d", 1 + i);
s_Channel2BaseFrequency[European][j++]->Frequency = 105.25 + 7.0 * i;
}
for (i = 0; i < 10; i++) {
s_Channel2BaseFrequency[European][j ]->Name = fname.sprintf("CATV S%d", 11 + i);
s_Channel2BaseFrequency[European][j++]->Frequency = 231.25 + 7.0 * i;
}
for (i = 0; i < 21; i++) {
s_Channel2BaseFrequency[European][j ]->Name = fname.sprintf("CATV S%d", 21 + i);
s_Channel2BaseFrequency[European][j++]->Frequency = 303.25 + 8.0 * i;
}
s_TablesFilled = true;
}
// public
/**
\brief Calculate frequency for this channel
\return The frequency in MHz
See also the function below.
*/
float TVChannel::Frequency() const
{
return Frequency(FrequencySystem, Channel, Finetuning);
}
/**
\brief Calculate frequency for channel + finetuning
\return The frequency in MHz
\param grid The frequency grid system
\param channel The channel in this grid
\param finetuning The finetuning offset, in 0.01 MHz
Note: the frequency is in MHz, so for the real frequency multiply by 1e6.
*/
float TVChannel::Frequency(FrequencyGrid grid, int channel, int finetuning)
{
float fr;
FillTables();
if (grid < 0 || grid >= FrequencyGrid_MAX)
return 0.0;
if (channel < 0 || channel >= s_Channel2BaseFrequency[grid].count())
return 0.0;
fr = s_Channel2BaseFrequency[grid][channel]->Frequency + finetuning / 100.0;
return fr;
}
/**
\brief Return number of channels within a grid
\return Number of channels, or 0 if invalid grid
\see ChannelName
*/
uint TVChannel::GetNumberOfChannels(FrequencyGrid grid)
{
if (grid < 0 || grid >= FrequencyGrid_MAX)
return 0;
FillTables();
return s_Channel2BaseFrequency[grid].count();
}
/**
\brief Return name of a channel
\param grid The frequency grid system
\param channel The channel in this grid
\return The name of this channel, like VHF 1, or CATV 23
Note: the name is not a TV channel name, but a rather systemic name
given to the channel within the given frequency system, like VHF 3,
UHF 21, etc.
*/
QString TVChannel::ChannelName(FrequencyGrid grid, int channel)
{
FillTables();
if (grid < 0 || grid >= FrequencyGrid_MAX)
return QString::null;
if (channel < 0 || channel >= s_Channel2BaseFrequency[grid].count())
return QString::null;
return s_Channel2BaseFrequency[grid][channel]->Name;
}
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