/// <summary>
/// save to file, each block is 512 bytes
/// </summary>
/// <param name="path">path to file</param>
/// <param name="seek">position of block</param>
/// <param name="blocks">blocks to save</param>
public static void save(string path, long seek, long blocks)
{
if (seek > blocksCount())
{
return;
}
BinaryWriter bw = new BinaryWriter(new FileStream(path, FileMode.Create));
long cnt = 0;
if (seek < 0)
{
setPosition(0);
cnt = blocks + seek;
}
else
{
setPosition(seek);
cnt = blocks;
}
for (int i = 0; i < cnt; i++)
{
bw.Write(readBlock());
if (remainingBlocks() < 1)
{
bw.Close();
return;
}
}
bw.Close();
EcgStatistic ecg = new EcgStatistic();
ecg.id = id.id;
ecg.age = id.age;
ecg.name = id.name;
ecg.starttimeSec = id.starttimeSec + (int)((float)seek * 56.0f / FileHandler.readSampleRate());
XmlClass <EcgStatistic> .Save(ecg, path + ".xml", SerializedFormat.Document);
}
/// <summary>
/// Initialize self streaming system
/// </summary>
/// <param name="path">path to file</param>
public static void begin(string path)
{
p = path;
end();
if (File.Exists(path))
{
// load and save statistic file
if (!File.Exists(path + ".xml"))
{
formStatistic sttc = new formStatistic();
if (sttc.ShowDialog() == DialogResult.OK)
{
EcgStatistic ecg = new EcgStatistic();
ecg.id = sttc.mId.Text;
ecg.name = sttc.mName.Text;
ecg.age = sttc.mAge.Text;
string[] tm = sttc.mTime.Text.Split(':');
int hh = int.Parse(tm[0]);
int mm = int.Parse(tm[1]);
int ss = int.Parse(tm[2]);
ecg.starttimeSec = ss + mm * 60 + hh * 60 * 60;
id = ecg;
}
else
{
id = new EcgStatistic();
}
XmlClass <EcgStatistic> .Save(id, path + ".xml", SerializedFormat.Document);
}
else
{
id = XmlClass <EcgStatistic> .Load(path + ".xml", SerializedFormat.Document);
}
// load file to stream
io = new BinaryReader(new FileStream(path, FileMode.Open));
}
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
this.listBox1.Items.Clear();
EcgStatistic set = FileHandler.id;
if (set.critical != null)
{
foreach (var l in set.critical)
{
time t = new time();
t.block = l;
t.sampleRate = main.graph1.sampleRate;
t.s2 = FileHandler.id.starttimeSec;
listBox1.Items.Add(t);
}
}
}
public formMain()
{
InitializeComponent();
ribon1.add("Open", box.folder, true, () =>
{
// open ecg file
OpenFileDialog op = new OpenFileDialog();
op.Filter = "ECG Files (*.bin)|*.bin";
if (op.ShowDialog() == DialogResult.OK)
{
// store path to config
Settings set = Settings.instance();
set.path = op.FileName;
set.commit();
// load file
FileHandler.begin(set.path);
this.OnLoad(null);
}
});
ribon1.add("Print", box.mail, true, () =>
{
// skip if file not loaded
if (!FileHandler.available())
{
return;
}
// open print form
formPrint frm = new formPrint(this);
frm.ShowDialog();
});
ribon1.add("Edit", box.edit, true, () =>
{
// skip if file not loaded
if (!FileHandler.available())
{
return;
}
Settings set = Settings.instance();
// edit file information
formStatistic sttc = new formStatistic();
sttc.mId.Text = FileHandler.id.id;
sttc.mName.Text = FileHandler.id.name;
sttc.mAge.Text = FileHandler.id.age;
TimeSpan ts = TimeSpan.FromSeconds(FileHandler.id.starttimeSec);
sttc.mTime.Text = zero(ts.Hours) + ":" + zero(ts.Minutes) + ":" + zero(ts.Seconds);
if (sttc.ShowDialog() == DialogResult.OK)
{
// load ecg information data
EcgStatistic ecg = new EcgStatistic();
ecg.id = sttc.mId.Text;
ecg.name = sttc.mName.Text;
ecg.age = sttc.mAge.Text;
ecg.critical = FileHandler.id.critical;
string[] tm = sttc.mTime.Text.Split(':');
int hh = int.Parse(tm[0]);
int mm = int.Parse(tm[1]);
int ss = int.Parse(tm[2]);
ecg.starttimeSec = ss + mm * 60 + hh * 60 * 60;
FileHandler.id = ecg;
// save file information
XmlClass <EcgStatistic> .Save(ecg, set.path + ".xml", SerializedFormat.Document);
// refresh graph data
graph1.ecgid = ecg;
slider1.s2 = graph1.ecgid.starttimeSec;
graph1.s2 = graph1.ecgid.starttimeSec + slider1.seek * 56.0f / sampleRate;
graph1.Refresh();
slider1.Refresh();
}
});
ribon1.add("Save", box.save, true, () =>
{
// skip if file not loaded
if (!FileHandler.available())
{
return;
}
// save data
SaveFileDialog op = new SaveFileDialog();
op.Filter = "ECG Files (*.bin)|*.bin";
if (op.ShowDialog() == DialogResult.OK)
{
FileHandler.save(op.FileName, slider1.seek, slider1.blocks);
}
});
ribon1.add("Analyses", box.heart, true, () =>
{
if (!FileHandler.available())
{
return;
}
// open analyse form
formAnalyse frm = new formAnalyse();
frm.ShowDialog();
});
ribon1.add("Goto", box.ff, true, () =>
{
// skip if file not loaded
if (!FileHandler.available())
{
return;
}
// goto time
formTime tme = new formTime();
TimeSpan ts = TimeSpan.FromSeconds(FileHandler.id.starttimeSec + slider1.seek * 56.0f / slider1.sampleRate);
tme.mDays.Value = ts.Days;
tme.mTime.Text = zero(ts.Hours) + ":" + zero(ts.Minutes) + ":" + zero(ts.Seconds);
if (tme.ShowDialog() == DialogResult.OK)
{
int days = (int)(tme.mDays.Value);
string[] tm = tme.mTime.Text.Split(':');
int hh = int.Parse(tm[0]);
int mm = int.Parse(tm[1]);
int ss = int.Parse(tm[2]);
// calculate seek seconds
long sc = days * 24 * 60 * 60 + hh * 60 * 60 + mm * 60 + ss;
// conver seconds to block number
slider1.seek = (long)((float)(sc - FileHandler.id.starttimeSec) * (float)slider1.sampleRate / 56.0f) + 1;
if (slider1.seek < 0)
{
slider1.seek = 0;
}
slider1.page = (long)((float)slider1.seek / (float)slider1.perPage);
// refresh
slider1.reload();
}
});
ribon1.add("Process Button Presses", box.analyse, true, () =>
{
// skip if file not loaded
if (!FileHandler.available())
{
return;
}
// open signal for analysing button presses
formProcess frm = new formProcess(this);
if (frm.ShowDialog() == DialogResult.OK)
{
if (frm.listBox1.SelectedIndex >= 0)
{
var aa = (formProcess.time)(frm.listBox1.Items[frm.listBox1.SelectedIndex]);
slider1.seek = aa.block;
slider1.reload();
}
}
});
ribon1.add("Settings", box.settings, false, () =>
{
formSettings frm = new formSettings(this);
frm.ShowDialog();
});
ribon1.add("About", box.i, false, () => { });
}
void run()
{
progressBar1.Minimum = 0;
progressBar1.Maximum = 100;
if (!FileHandler.available())
{
return;
}
EcgStatistic set = FileHandler.id;
if (set.critical == null)
{
set.critical = new List <long>();
}
long len = FileHandler.blocksCount();
long i0 = 0;
if (set.critical.Count > 2)
{
i0 = set.critical[set.critical.Count - 1] + 1;
}
for (long i = i0; i < len; i++)
{
FileHandler.setPosition(i);
if (FileHandler.remainingBlocks() < 2)
{
break;
}
int sdm = FileHandler.io.ReadByte();
if (sdm == 170)
{
set.critical.Add(i);
}
progressBar1.Value = (int)((float)i / (float)len * 100.0f);
progressBar1.Refresh();
}
XmlClass <EcgStatistic> .Save(set, FileHandler.p + ".xml", SerializedFormat.Document);
listBox1.Items.Clear();
if (set.critical != null)
{
foreach (var l in set.critical)
{
time t = new time();
t.block = l;
t.sampleRate = main.graph1.sampleRate;
t.s2 = FileHandler.id.starttimeSec;
listBox1.Items.Add(t);
}
}
progressBar1.Value = 0;
progressBar1.Refresh();
MessageBox.Show("finish!");
}
/// <summary>
/// load and filter signal
/// </summary>
/// <param name="slider">slider</param>
/// <returns></returns>
public static SignalSamples load(Slider slider)
{
// skip if file not exist
if (!FileHandler.available())
{
return(null);
}
// load samples
Settings set = Settings.instance();
int sampleRate = FileHandler.readSampleRate();
SignalSamples samples = FileHandler.readBlocks(slider.seek, slider.blocks);
samples = samples.Normalize();
samples.sampleRate = sampleRate;
// find signal amplitude
Signal deltaGreat = samples.FindMax() - samples.FindMin();
// 2x 12 hz filter
if (set.noise12Hz)
{
samples.Filter(12, sampleRate / 2, 1.3f);
samples.Filter(12, sampleRate / 2, 1.3f);
}
// 20 hz filter
if (set.noise20Hz)
{
samples.Filter(20, sampleRate / 2, 1.3f);
samples.Filter(20, sampleRate / 2, 1.3f);
}
// 45 hz filter
if (set.noise45Hz)
{
samples.Filter(45, sampleRate / 2, 1.3f);
}
// 50hz or 60hz noise
if (set.noiseCustom > 0)
{
samples.Filter(set.noiseCustom, sampleRate / 2, 1);
}
// notch filter
if (set.noiseNotch)
{
samples = FilterNotch.Process(samples, 400, 0.1f);
}
// find signal loss enerrgy amplitude
Signal deltaLess = samples.FindMax() - samples.FindMin();
// amplify loosed amplitude
samples.Amplify(deltaGreat, deltaLess);
// load file description
FileHandler.id = XmlClass <EcgStatistic> .Load(FileHandler.p + ".xml", SerializedFormat.Document);
return(samples);
}
