CadPythonShell/CADPythonShell/CompletionToolTip.cs at dev · chuongmep/CadPythonShell · GitHub

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namespace CADPythonShell

{

/// <summary>

/// Display a listbox with a list of completions for a given string.

/// </summary>

public class CompletionToolTip

{

private ListBox _lstCompletions;

private TextBox _lblDocumentation;

private CompletionToolTipWindow _dialog;

private bool _cancel = false;

private IEnumerable<string> _documentations;

private class CompletionToolTipWindow : Form

{

private ListBox _completions;

private TextBox _documentation;

public CompletionToolTipWindow(ListBox completions, TextBox documentation)

{

_completions = completions;

_documentation = documentation;

FormBorderStyle = FormBorderStyle.None;

StartPosition = FormStartPosition.Manual;

TopMost = true;

ShowInTaskbar = false;

BackColor = Color.White;

Opacity = 0.9;

Controls.Add(completions);

Controls.Add(documentation);

Width = completions.PreferredSize.Width;

Height = completions.Height + documentation.Height;

completions.Width = Width;

documentation.Width = Width;

documentation.Location = new Point(completions.Location.X, completions.Location.Y + completions.Height);

completions.Show();

documentation.Show();

}

public void resize()

{

Width = _completions.PreferredSize.Width;

Height = _completions.Height + _documentation.Height;

_documentation.Location = new Point(_completions.Location.X, _completions.Location.Y + _completions.Height);

}

protected override void OnShown(EventArgs e)

{

base.OnShown(e);

_completions.Focus();

}

/// <summary>

/// Show a listbox with possible completions for the uncompleted string.

/// When the user chooses one and presses enter (or clicks it with the mouse),

/// return the chosen completion. Or, when the user presses escape, then

/// close the window and return null.

/// </summary>

public string ShowTooltip(string uncompleted, IEnumerable<string> completions, IEnumerable<string> documentations, Point location)

{

_lstCompletions = new ListBox();

_lstCompletions.ScrollAlwaysVisible = true;

_lstCompletions.Items.AddRange(completions.ToArray());

_lstCompletions.SelectionMode = SelectionMode.One;

_lstCompletions.AutoSize = false;

_lstCompletions.SelectedIndexChanged += new EventHandler(selectedIndexChanged);

_lstCompletions.Click += new EventHandler(lstCompletionsClicked);

int maxWidth = 0;

for (int i = 0; i < _lstCompletions.Items.Count; i++)

{

if (_lstCompletions.GetItemRectangle(i).Width > maxWidth)

maxWidth = _lstCompletions.GetItemRectangle(i).Width;

}

_lstCompletions.Width = maxWidth;

if (_lstCompletions.Items.Count > 0)

_lstCompletions.Height = _lstCompletions.GetItemHeight(0) * 10;

_documentations = documentations;

_lblDocumentation = new TextBox();

_lblDocumentation.WordWrap = true;

_lblDocumentation.Width = _lstCompletions.Width;

_lblDocumentation.BackColor = SystemColors.ControlLight;

if (_documentations != null && _documentations.Count() > 0)

_lblDocumentation.Text = _documentations.ElementAt(0);

_lblDocumentation.ScrollBars = ScrollBars.Vertical;

_lblDocumentation.Multiline = true;

_lblDocumentation.AutoSize = true;

_lblDocumentation.Height = 100;

_lblDocumentation.ReadOnly = true;

_dialog = new CompletionToolTipWindow(_lstCompletions, _lblDocumentation);

_dialog.KeyDown += new KeyEventHandler(dialog_KeyDown);

_dialog.Location = location;

_dialog.KeyPreview = true;

_dialog.ShowDialog();

if (_cancel || _lstCompletions.SelectedIndex < 0)

return null;

return (string)_lstCompletions.SelectedItem;

}

private void selectedIndexChanged(object sender, EventArgs e)

{

try

{

_lblDocumentation.Text = _documentations.ElementAt(_lstCompletions.SelectedIndex);

}

catch

{

_lblDocumentation.Text = "";

}

_dialog.resize();

}

private void dialog_KeyDown(object sender, KeyEventArgs e)

{

if (e.KeyCode == Keys.Enter || e.KeyCode == Keys.Tab || e.KeyCode == Keys.Return)

{

_dialog.Hide();

}

else if (e.KeyCode == Keys.Escape)

{

_cancel = true;

_dialog.Hide();

}

private void lstCompletionsClicked(object sender, EventArgs e)

{

_dialog.Hide();

}

CadPythonShell/CADPythonShell/CompletionToolTip.cs at dev · chuongmep/CadPythonShell · GitHub

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