private void OnDuplicateButtonClick(object sender, EventArgs e)
{
ListView.Item selected = listView.FocusedItem;
if (selected != null && selected.NumericValueSource is ArithmeticExpression)
{
ArithmeticExpression ae = ArithmeticExpression.Parse(selected.Text);
ae.Callbacks = selected.OperatorCallbacks;
ListView.Item item = new ListView.Item {
OperatorCallbacks = selected.OperatorCallbacks,
Color = FindNewColor(),
CheckState = selected.CheckState,
CheckEnabled = selected.CheckEnabled,
ImageResourceCallback = OnImageResourceCallback,
Description = selected.Description,
NumericValueSource = ae,
Text = selected.Text,
TextDisplay = selected.TextDisplay
};
listView.Items.Add(item);
listView.FocusedItem = item;
listView.Invalidate();
listView.Update();
listView.EnsureVisible(item);
}
}
private void OnItemBeforeEdit(object sender, CancelEventArgs e)
{
ListView.Item item = (ListView.Item)sender;
if (item.NumericValueSource is MemoryDataSet || item.NumericValueSource is FileDataSet)
{
e.Cancel = true;
}
}
private void RefreshUI()
{
ListView.Item selection = listView.SelectedItem;
double value;
findButton.Enabled = (selection?.NumericValueSource != null &&
!string.IsNullOrWhiteSpace(valueTextBox.Text) &&
double.TryParse(valueTextBox.Text, NumberStyles.Any, CultureInfo.InvariantCulture, out value) &&
value != 0);
}
private void OnSetItemCallbacksButtonClick(object sender, EventArgs e)
{
ToolStripMenuItem item = sender as ToolStripMenuItem;
if (item == null)
{
return;
}
ListView.Item selected = listView.FocusedItem;
if (selected != null && !(selected.NumericValueSource is MemoryDataSet) && !(selected.NumericValueSource is FileDataSet))
{
selected.OperatorCallbacks = item.Tag as OperatorCallbacks;
}
}
private void OnFindButtonClick(object sender, EventArgs e)
{
ListView.Item selection = listView.SelectedItem;
if (selection?.NumericValueSource != null)
{
double x;
if (!double.TryParse(valueTextBox.Text, NumberStyles.Any, CultureInfo.InvariantCulture, out x) || x == 0)
{
return;
}
double y = selection.NumericValueSource.Evaluate(x);
graph.ZoomToValue(x, y);
Close();
}
}
private void OnRemoveButtonClick(object sender, EventArgs e)
{
ListView.Item selected = listView.FocusedItem;
if (selected != null)
{
int index = selected.Index;
listView.Items.Remove(selected);
if (listView.Items.Count > 0)
{
listView.FocusedItem = listView.Items[Math.Max(0, index - 1)];
}
IDisposable sourceDisposable = selected.NumericValueSource as IDisposable;
if (sourceDisposable != null)
{
sourceDisposable.Dispose();
}
}
}
private void OnAddButtonClick(object sender, EventArgs e)
{
ListView.Item item = new ListView.Item {
OperatorCallbacks = defaultDoubleCallbacks,
Color = FindNewColor(),
CheckState = CheckState.Checked,
CheckEnabled = false,
ImageResourceCallback = OnImageResourceCallback,
TextDisplay = "\f[0x999999]" + Tx.T("main.enter expression")
};
OnItemPropertyChanged(item, new PropertyChangedEventArgs("OperatorCallbacks"));
listView.Items.Add(item);
listView.FocusedItem = item;
listView.Invalidate();
listView.Update();
listView.EnsureVisible(item);
}
/// <summary>
/// Refreshes state of toolstrip
/// </summary>
private void RefreshToolStrip()
{
ListView.Item selection = listView.SelectedItem;
if (selection == null)
{
removeButton.Enabled = false;
duplicateButton.Enabled = false;
exportButton.Enabled = false;
implementationButton.Enabled = false;
}
else
{
removeButton.Enabled = true;
ArithmeticExpression arithmeticExpression = selection.NumericValueSource as ArithmeticExpression;
if (arithmeticExpression != null)
{
duplicateButton.Enabled = true;
exportButton.Enabled = true;
implementationButton.Enabled = true;
foreach (ToolStripItem item in implementationButton.DropDownItems)
{
if (item.Tag != null)
{
((ToolStripMenuItem)item).Checked = (item.Tag == arithmeticExpression.Callbacks);
}
}
}
else
{
duplicateButton.Enabled = false;
exportButton.Enabled = false;
implementationButton.Enabled = false;
}
}
}
private void OnImportButtonClick(object sender, EventArgs e)
{
using (OpenFileDialog dialog = new OpenFileDialog()) {
const string ext = ".fvis-values";
dialog.CheckFileExists = true;
dialog.Filter = Tx.T("dataset.filetype") + " (*" + ext + ")|*" + ext;
dialog.FilterIndex = 0;
dialog.RestoreDirectory = true;
dialog.Title = Tx.T("dataset.load");
if (dialog.ShowDialog(this) != DialogResult.OK)
{
return;
}
string filename = dialog.FileName;
using (FileStream s = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read))
using (BinaryReader br = new BinaryReader(s)) {
byte[] header = br.ReadBytes(4);
if (header[0] != 'f' || header[1] != 'V' || header[2] != 'i' || header[3] != 's')
{
MessageBox.Show(this, Tx.T("dataset.errors.file not valid"), Tx.T("main.error"), MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
int flags = br.ReadInt32();
string description = br.ReadString();
long axisX = br.ReadInt64();
long axisY = br.ReadInt64();
double scaleFactor = br.ReadDouble();
ulong count = br.ReadUInt64();
if (count <= 0)
{
MessageBox.Show(this, Tx.T("dataset.errors.file not valid"), Tx.T("main.error"), MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
ulong offset = (ulong)s.Position;
// Close stream and open the same file in memory-mapped mode
s.Close();
FileDataSet fileDataSet = new FileDataSet(filename, offset, count);
// Add item to ListView
StringBuilder sb = new StringBuilder();
sb.Append("\f[I]\f[0x888888]" + Tx.T("dataset.part of function") + " \f[Rc]\f[I]");
int i = description.IndexOf('#');
if (i != -1)
{
while (i > 0 && description[i - 1] == ' ')
{
i--;
}
sb.Append(description, 0, i);
sb.Append("\f[0x498E3E]");
sb.Append(description, i, description.Length - i);
}
else
{
sb.Append(description);
}
ListView.Item item = new ListView.Item {
NumericValueSource = fileDataSet,
Text = description,
TextDisplay = sb.ToString(),
Color = FindNewColor(),
CheckState = CheckState.Checked,
CheckEnabled = true,
ImageResourceCallback = OnImageResourceCallback
};
listView.Items.Add(item);
listView.FocusedItem = item;
listView.Invalidate();
listView.Update();
listView.EnsureVisible(item);
// Zoom to values in graph
graph.ScaleFactor = scaleFactor;
graph.AxisX = axisX;
graph.AxisY = axisY;
}
}
}
private void OnImplementationAddButtonClick(object sender, EventArgs e)
{
ListView.Item selected = listView.FocusedItem;
if (selected == null)
{
return;
}
using (OpenFileDialog dialog = new OpenFileDialog()) {
dialog.CheckFileExists = true;
dialog.Filter = Tx.T("mathlib.filetype") + " (*.dll)|*.dll";
dialog.FilterIndex = 0;
dialog.RestoreDirectory = true;
dialog.Title = Tx.T("mathlib.load");
if (dialog.ShowDialog(this) != DialogResult.OK)
{
return;
}
string filename = dialog.FileName;
try {
NativeOperatorCallbacks callbacks = new NativeOperatorCallbacks(filename);
ToolStripMenuItem item = new ToolStripMenuItem(callbacks.ImplementationName);
item.ShortcutKeyDisplayString = "(" + Path.GetFileName(filename) + ")";
item.Click += OnSetItemCallbacksButtonClick;
item.Tag = callbacks;
string missingCallbacks = ConvertMissingCallbacksToString(callbacks);
if (!string.IsNullOrEmpty(missingCallbacks))
{
item.ToolTipText = Tx.T("mathlib.missing callbacks") + missingCallbacks;
}
implementationButton.DropDownItems.Add(item);
OnSetItemCallbacksButtonClick(item, EventArgs.Empty);
} catch (BadImageFormatException) {
if (Environment.Is64BitProcess)
{
try {
NativeOperatorRemotingCallbacks callbacks = new NativeOperatorRemotingCallbacks(filename);
ToolStripMenuItem item = new ToolStripMenuItem(callbacks.ImplementationName);
item.ShortcutKeyDisplayString = "(x86, " + Path.GetFileName(filename) + ")";
item.Click += OnSetItemCallbacksButtonClick;
item.Tag = callbacks;
string missingCallbacks = ConvertMissingCallbacksToString(callbacks);
if (!string.IsNullOrEmpty(missingCallbacks))
{
item.ToolTipText = Tx.T("mathlib.missing callbacks") + missingCallbacks;
}
implementationButton.DropDownItems.Add(item);
OnSetItemCallbacksButtonClick(item, EventArgs.Empty);
} catch (InvalidOperationException) {
MessageBox.Show(this, Tx.T("mathlib.errors.not valid"), Tx.T("mathlib.errors.title"), MessageBoxButtons.OK, MessageBoxIcon.Error);
} catch (Exception ex) {
MessageBox.Show(this, ex.Message, Tx.T("mathlib.errors.title"), MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
MessageBox.Show(this, Tx.T("mathlib.errors.platform mismatch"), Tx.T("mathlib.errors.title"), MessageBoxButtons.OK, MessageBoxIcon.Error);
}
} catch (InvalidOperationException) {
MessageBox.Show(this, Tx.T("mathlib.errors.not valid"), Tx.T("mathlib.errors.title"), MessageBoxButtons.OK, MessageBoxIcon.Error);
} catch (Exception ex) {
MessageBox.Show(this, ex.Message, Tx.T("mathlib.errors.title"), MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
/// <summary>
/// Checks missing callbacks for given arithmetic expression
/// </summary>
/// <param name="item">Item to check</param>
/// <param name="text">String builder to append warings to</param>
private void CheckCallbacks(ListView.Item item, StringBuilder text)
{
if (item?.OperatorCallbacks == null)
{
return;
}
ArithmeticExpression ae = item.NumericValueSource as ArithmeticExpression;
if (ae == null)
{
return;
}
bool isFirst = true;
bool iconAppended = false;
string[] missingCallbacks = null;
NativeOperatorCallbacks callbacks = item.OperatorCallbacks as NativeOperatorCallbacks;
if (callbacks != null)
{
missingCallbacks = callbacks.MissingCallbacks;
if (missingCallbacks.Length == 0)
{
return;
}
}
else
{
NativeOperatorRemotingCallbacks proxyCallbacks = item.OperatorCallbacks as NativeOperatorRemotingCallbacks;
if (proxyCallbacks != null)
{
iconAppended = true;
text.Append(" \f[-]\f[image:warning] \f[0xaa6400]\f[I]" + Tx.T("mathlib.remoting"));
missingCallbacks = proxyCallbacks.MissingCallbacks;
if (missingCallbacks.Length == 0)
{
text.Append("\f[I]\f[Rc]");
return;
}
}
}
if (missingCallbacks == null)
{
return;
}
for (int i = 0; i < missingCallbacks.Length; i++)
{
string current = missingCallbacks[i];
if (!ae.IsCallbackUsed(current))
{
continue;
}
if (isFirst)
{
isFirst = false;
if (iconAppended)
{
text.Append(" \f[0x999999]|\f[0xaa6400] " + Tx.T("mathlib.missing callbacks"));
}
else
{
text.Append(" \f[-]\f[image:warning] \f[0xaa6400]\f[I]" + Tx.T("mathlib.missing callbacks"));
}
}
else
{
text.Append(", ");
}
if (current.StartsWith("constant_", StringComparison.Ordinal))
{
text.Append("\f[I]");
text.Append(current, 9, current.Length - 9);
text.Append("\f[I]");
}
else if (current.StartsWith("operator_", StringComparison.Ordinal))
{
text.Append(current, 9, current.Length - 9);
}
else
{
text.Append(current);
}
}
if (!isFirst)
{
text.Append("\f[I]\f[Rc]");
}
}
private void OnItemPropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == "Text")
{
ListView.Item item = (ListView.Item)sender;
if (string.IsNullOrEmpty(item.Text))
{
item.NumericValueSource = null;
item.TextDisplay = "\f[0x999999]" + Tx.T("main.enter expression");
}
else
{
try {
ArithmeticExpression ae = ArithmeticExpression.Parse(item.Text);
ae.Callbacks = item.OperatorCallbacks;
item.NumericValueSource = ae;
int i = item.Text.IndexOf('#');
if (i != -1)
{
while (i > 0 && item.Text[i - 1] == ' ')
{
i--;
}
StringBuilder sb = new StringBuilder();
sb.Append(item.Text, 0, i);
if (ae.VariableName == null && !ae.IsSimpleConstantOnly)
{
double result = ae.Evaluate(double.NaN);
sb.Append("\f[I]\f[0x999999] = ");
sb.Append(result.ToExactString().LimitSize(32));
sb.Append(" \f[I]");
}
sb.Append("\f[0x498E3E]");
sb.Append(item.Text, i, item.Text.Length - i);
CheckCallbacks(item, sb);
item.TextDisplay = sb.ToString();
}
else
{
if (ae.VariableName == null && !ae.IsSimpleConstantOnly)
{
StringBuilder sb = new StringBuilder();
sb.Append(item.Text);
double result = ae.Evaluate(double.NaN);
sb.Append("\f[I]\f[0x999999] = ");
if (double.IsPositiveInfinity(result))
{
sb.Append("+∞");
}
else if (double.IsNegativeInfinity(result))
{
sb.Append("−∞");
}
else
{
sb.Append(result.ToExactString().LimitSize(32));
}
sb.Append("\f[I]");
CheckCallbacks(item, sb);
item.TextDisplay = sb.ToString();
}
else
{
StringBuilder sb = new StringBuilder();
sb.Append(item.Text);
CheckCallbacks(item, sb);
item.TextDisplay = sb.ToString();
}
}
} catch (SyntaxException ex) {
item.NumericValueSource = null;
StringBuilder sb = new StringBuilder();
sb.Append("\f[0x8b0000]");
int length = ex.Input.IndexOf('#');
if (length == -1)
{
length = ex.Input.Length;
}
if (length < 3)
{
sb.Append(ex.Input);
}
else
{
if (ex.Index - 1 < 0)
{
sb.Append("\f[U]");
}
else
{
sb.Append(ex.Input, 0, ex.Index - 1);
sb.Append("\f[U]\f[0xd00000]");
sb.Append(ex.Input[ex.Index - 1]);
}
sb.Append("\f[0xff0000]");
sb.Append(ex.Input[ex.Index]);
if (ex.Index + 1 < length)
{
sb.Append("\f[0xd00000]");
sb.Append(ex.Input[ex.Index + 1]);
sb.Append("\f[0x8b0000]\f[U]");
if (ex.Index + 2 < length)
{
sb.Append(ex.Input, ex.Index + 2, length - (ex.Index + 2));
}
}
else
{
sb.Append("\f[0xd00000] \f[U]");
}
}
switch (ex.ExceptionType)
{
case SyntaxException.Type.Unknown:
break;
case SyntaxException.Type.InvalidNumber:
sb.Append(" \f[-]\f[image:warning] \f[0xaa6400]\f[I]");
sb.Append(Tx.T("expression.errors.invalid number"));
break;
case SyntaxException.Type.DistinctVariableCountExceeded:
sb.Append(" \f[-]\f[image:warning] \f[0xaa6400]\f[I]");
sb.Append(Tx.T("expression.errors.distinct variable count exceeded"));
break;
case SyntaxException.Type.ParenthesesCountMismatch:
sb.Append(" \f[-]\f[image:warning] \f[0xaa6400]\f[I]");
sb.Append(Tx.T("expression.errors.parentheses count mismatch"));
break;
default:
throw new InvalidEnumArgumentException("ex.ExceptionType", (int)ex.ExceptionType, typeof(SyntaxException.Type));
}
item.TextDisplay = sb.ToString();
} catch (Exception ex) {
item.NumericValueSource = null;
item.TextDisplay = "\f[0x8b0000]" + item.Text + " \f[-]\f[image:warning] \f[0xaa6400]\f[I]" + ex.Message;
}
}
item.CheckEnabled = (item.NumericValueSource != null);
RefreshToolStrip();
}
else if (e.PropertyName == "OperatorCallbacks")
{
ListView.Item item = (ListView.Item)sender;
ArithmeticExpression arithmeticExpression = item.NumericValueSource as ArithmeticExpression;
if (arithmeticExpression != null)
{
arithmeticExpression.Callbacks = item.OperatorCallbacks;
OnItemPropertyChanged(item, new PropertyChangedEventArgs("Text"));
}
item.Description = item.OperatorCallbacks.ImplementationName;
}
}
private unsafe void OnExportSelectedButtonClick(object sender, EventArgs e)
{
ListView.Item selected = listView.FocusedItem;
if (selected == null)
{
// Nothing to export...
return;
}
ArithmeticExpression ae = selected.NumericValueSource as ArithmeticExpression;
if (ae == null)
{
MessageBox.Show(this, Tx.T("dataset.errors.item not supported"), Tx.T("main.error"), MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
long xFi = 0, xLi = 0, distance = 0;
if (ae.VariableName != null)
{
double xF_ = graph.MinVisibleX;
double xL_ = graph.MaxVisibleX;
if (xF_ >= xL_)
{
MessageBox.Show(this, Tx.T("dataset.errors.cannot determine interval"), Tx.T("main.error"),
MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (Math.Sign(xF_) != Math.Sign(xL_))
{
MessageBox.Show(this, Tx.T("dataset.errors.interval with zero"), Tx.T("main.error"),
MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
// Swap first and last for negative "x" values
xFi = *(long *)&xF_;
xLi = *(long *)&xL_;
if (xFi > xLi)
{
long swap = xLi;
xLi = xFi;
xFi = swap;
}
distance = (xLi - xFi);
if (distance < 0)
{
MessageBox.Show(this, Tx.T("dataset.errors.interval too big"), Tx.T("main.error"),
MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (distance > 10 * 1000 * 1000)
{
long sizeInMB = (distance * 8 * 2 / 1024 / 1024);
string sizeString;
if (sizeInMB > 100L * 1024L)
{
sizeString = Tx.N(sizeInMB / 1024) + " GB";
}
else
{
sizeString = Tx.N(sizeInMB) + " MB";
}
if (MessageBox.Show(this, Tx.T("dataset.errors.file too big", Tx.N(distance), sizeString), Tx.T("main.warning"),
MessageBoxButtons.OKCancel, MessageBoxIcon.Warning) != DialogResult.OK)
{
return;
}
}
}
using (SaveFileDialog dialog = new SaveFileDialog()) {
const string ext = ".fvis-values";
dialog.Filter = Tx.T("dataset.filetype") + " (*" + ext + ")|*" + ext;
dialog.FilterIndex = 0;
dialog.RestoreDirectory = true;
dialog.Title = Tx.T("dataset.save");
string filename = selected.Text;
char[] invalidChars = Path.GetInvalidFileNameChars();
for (int i = 0; i < invalidChars.Length; i++)
{
filename = filename.Replace(invalidChars[i], '_');
}
dialog.FileName = filename + ext;
if (dialog.ShowDialog(this) != DialogResult.OK)
{
return;
}
filename = dialog.FileName;
ProgressDialog progressDialog = new ProgressDialog();
progressDialog.Text = Tx.T("dataset.saving.title");
progressDialog.MainInstruction = Tx.T("dataset.saving.description");
progressDialog.Line1 = Tx.T("dataset.saving.progress", "0", Tx.N(xLi - xFi));
progressDialog.Show(this);
ThreadPool.UnsafeQueueUserWorkItem(delegate {
using (FileStream s = new FileStream(filename, FileMode.Create, FileAccess.Write, FileShare.None))
using (BinaryWriter bw = new BinaryWriter(s)) {
bw.Write(new[] { (byte)'f', (byte)'V', (byte)'i', (byte)'s' });
const int flags = 0;
bw.Write(flags);
string description = selected.Text;
bw.Write(description);
// Save graph viewport settings
long axisX = graph.AxisX;
long axisY = graph.AxisY;
double scaleFactor = graph.ScaleFactor;
bw.Write(axisX);
bw.Write(axisY);
bw.Write(scaleFactor);
if (ae.VariableName == null)
{
// Constant function, save only one value
double y = ae.Evaluate(double.NaN);
const long count = 2;
bw.Write(count);
bw.Write(double.MinValue);
bw.Write(y);
bw.Write(double.MaxValue);
bw.Write(y);
}
else
{
bw.Write(distance + 1);
Stopwatch sw = Stopwatch.StartNew();
long lastProcessed = xFi;
for (long xi = xFi; xi <= xLi; xi++)
{
double x = *(double *)ξ
double y = ae.Evaluate(x);
bw.Write(x);
bw.Write(y);
if (sw.ElapsedMilliseconds > 4000)
{
if (progressDialog.IsCancelled)
{
break;
}
sw.Stop();
long delta = (xi - lastProcessed);
long rate = delta * 1000 / (long)sw.Elapsed.TotalMilliseconds;
TimeSpan remaining = TimeSpan.FromSeconds((xLi - xi) / rate);
lastProcessed = xi;
BeginInvoke((MethodInvoker) delegate {
progressDialog.Line1 = Tx.T("dataset.saving.progress", Tx.N(lastProcessed - xFi), Tx.N(xLi - xFi));
progressDialog.Line2 = Tx.T("main.remaining time", remaining.ToTextString());
progressDialog.Progress = (int)((lastProcessed - xFi) * 100 / (xLi - xFi));
});
sw.Restart();
}
}
sw.Stop();
}
}
if (progressDialog.IsCancelled)
{
try {
File.Delete(filename);
} catch {
// Nothing to do...
}
}
BeginInvoke((MethodInvoker) delegate {
progressDialog.TaskCompleted();
});
}, null);
}
}
