private void btnClose_Click(object sender, EventArgs e)
{
if (!string.IsNullOrWhiteSpace(currentTab?.scintilla.Text))
{
if (DialogResult.OK != MessageBox.Show(this, "Close this tab will delete its current contents, are you sure?", "Please confirm", MessageBoxButtons.OKCancel, MessageBoxIcon.Warning))
{
return;
}
}
ExpressionTab tab = currentTab;
int index = tabsLeft.SelectedIndex;
tabsLeft.Controls.Remove(tab);
DataTable dt = gridFiles.DataSource as DataTable;
if (dt != null)
{
dt.Columns.Remove(tab.ID);
}
if (tabsLeft.TabCount == 0)
{
AddExpressionTab();
}
if (index >= tabsLeft.TabCount)
{
index = tabsLeft.TabCount - 1;
}
tabsLeft.SelectedIndex = index;
reorderDatagridColumns();
}
private ExpressionTab AddExpressionTab(string name = null, string content = null, int pos = -1)
{
if (name == null)
{
// find free name
int n = tabsLeft.TabCount + 1;
string[] names = expressionTabs.Select(t => t.Text).ToArray();
while (names.Contains($"expr{n}"))
{
n++;
}
name = $"expr{n}";
}
var tab = new ExpressionTab(name, settings);
tab.highlighter = new ELSyntax(jrAPI.FieldsHighlight, settings.ExtraFunctions);
tab.jrAPI = jrAPI;
tab.Paused = paused;
tab.ZoomChanged += expression_ZoomChanged;
tab.ExpressionChanged += expression_TextChanged;
tab.FunctionChanged += expression_FunctionChanged;
if (content != null)
{
tab.scintilla.Text = content;
}
if (pos >= 0)
{
tab.scintilla.GotoPosition(pos);
}
tabsLeft.TabPages.Add(tab);
DataTable dt = gridFiles.DataSource as DataTable;
if (dt != null)
{
dt.Columns.Add(tab.ID);
gridFiles.Columns[tab.ID].HeaderText = tab.Text;
gridFiles.Columns[tab.ID].SortMode = DataGridViewColumnSortMode.NotSortable;
reorderDatagridColumns();
}
tabsLeft.SelectedTab = tab;
tab.scintilla.EmptyUndoBuffer();
tab.scintilla.Focus();
tab.Evaluate(currentFile);
return(tab);
}
void UpdateDatagrid(ExpressionTab tab, string expression)
{
// get visible rows to fetch them first
int first = gridFiles.FirstDisplayedScrollingRowIndex;
int count = gridFiles.DisplayedRowCount(true);
DataTable data = gridFiles.DataSource as DataTable;
if (data == null)
{
return;
}
if (!data.Columns.Contains(tab.ID))
{
return;
}
List <JRFile> visible = new List <JRFile>();
for (int i = first - 1; i <= first + count; i++)
{
if (i >= 0 && i < gridFiles.Rows.Count)
{
visible.Add(gridFiles.Rows[i].Cells[0].Value as JRFile);
}
}
// make list of rows - visible first
List <DataRow> rows = new List <DataRow>();
foreach (DataRow row in data.Rows)
{
if (visible.Contains(row[0] as JRFile))
{
rows.Add(row);
}
}
foreach (DataRow row in data.Rows)
{
if (!visible.Contains(row[0] as JRFile))
{
rows.Add(row);
}
}
Task.Run(() =>
{
// calculate expression and populate data
Stopwatch sw = new Stopwatch();
List <object[]> rowData = new List <object[]>();
int currRow = 0;
bool isEmpty = string.IsNullOrWhiteSpace(expression);
foreach (DataRow row in rows)
{
if (tab.changed)
{
return;
}
//if (changed) return; // TODO!!!! cancel current processing on changes
if (settings.ShowAPICallTime)
{
sw.Restart();
}
string value = isEmpty ? expression : jrAPI.resolveExpression(row[0] as JRFile, expression);
if (settings.ShowAPICallTime)
{
sw.Stop();
}
double time = settings.ShowAPICallTime && !isEmpty ? TimeSpan.FromTicks(sw.ElapsedTicks).TotalMilliseconds : 0;
rowData.Add(new object[] { row, value, time });
if (++currRow % 100 == 0)
{
var copy = new List <object[]>(rowData);
BeginInvoke(new MethodInvoker(() => UpdateDatagrid(tab.ID, copy)));
rowData.Clear();
}
}
BeginInvoke(new MethodInvoker(() => UpdateDatagrid(tab.ID, rowData)));
});
}