Files
Terminal.Gui/UICatalog/Scenarios/DynamicMenuBar.cs

1441 lines
62 KiB
C#

using System;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Text;
using Terminal.Gui;
namespace UICatalog.Scenarios;
[ScenarioMetadata ("Dynamic MenuBar", "Demonstrates how to change a MenuBar dynamically.")]
[ScenarioCategory ("Top Level Windows")]
[ScenarioCategory ("Menus")]
public class DynamicMenuBar : Scenario
{
public override void Main ()
{
// Init
Application.Init ();
// Setup - Create a top-level application window and configure it.
DynamicMenuBarSample appWindow = new ()
{
Title = $"{Application.QuitKey} to Quit - Scenario: {GetName ()}"
};
// Run - Start the application.
Application.Run (appWindow);
appWindow.Dispose ();
// Shutdown - Calling Application.Shutdown is required.
Application.Shutdown ();
}
public class Binding
{
private readonly PropertyInfo _sourceBindingProperty;
private readonly object _sourceDataContext;
private readonly IValueConverter _valueConverter;
public Binding (
View source,
string sourcePropertyName,
View target,
string targetPropertyName,
IValueConverter valueConverter = null
)
{
Target = target;
Source = source;
SourcePropertyName = sourcePropertyName;
TargetPropertyName = targetPropertyName;
_sourceDataContext = Source.GetType ().GetProperty ("DataContext").GetValue (Source);
_sourceBindingProperty = _sourceDataContext.GetType ().GetProperty (SourcePropertyName);
_valueConverter = valueConverter;
UpdateTarget ();
var notifier = (INotifyPropertyChanged)_sourceDataContext;
if (notifier != null)
{
notifier.PropertyChanged += (s, e) =>
{
if (e.PropertyName == SourcePropertyName)
{
UpdateTarget ();
}
};
}
}
public View Source { get; }
public string SourcePropertyName { get; }
public View Target { get; }
public string TargetPropertyName { get; }
private void UpdateTarget ()
{
try
{
object sourceValue = _sourceBindingProperty.GetValue (_sourceDataContext);
if (sourceValue == null)
{
return;
}
object finalValue = _valueConverter?.Convert (sourceValue) ?? sourceValue;
PropertyInfo targetProperty = Target.GetType ().GetProperty (TargetPropertyName);
targetProperty.SetValue (Target, finalValue);
}
catch (Exception ex)
{
MessageBox.ErrorQuery ("Binding Error", $"Binding failed: {ex}.", "Ok");
}
}
}
public class DynamicMenuBarDetails : FrameView
{
private bool _hasParent;
private MenuItem _menuItem;
public DynamicMenuBarDetails (MenuItem menuItem = null, bool hasParent = false) : this ()
{
_menuItem = menuItem;
_hasParent = hasParent;
Title = menuItem == null ? "Adding New Menu." : "Editing Menu.";
}
public DynamicMenuBarDetails ()
{
var _lblTitle = new Label { Y = 1, Text = "Title:" };
Add (_lblTitle);
TextTitle = new () { X = Pos.Right (_lblTitle) + 2, Y = Pos.Top (_lblTitle), Width = Dim.Fill () };
Add (TextTitle);
var _lblHelp = new Label { X = Pos.Left (_lblTitle), Y = Pos.Bottom (_lblTitle) + 1, Text = "Help:" };
Add (_lblHelp);
TextHelp = new () { X = Pos.Left (TextTitle), Y = Pos.Top (_lblHelp), Width = Dim.Fill () };
Add (TextHelp);
var _lblAction = new Label { X = Pos.Left (_lblTitle), Y = Pos.Bottom (_lblHelp) + 1, Text = "Action:" };
Add (_lblAction);
TextAction = new ()
{
X = Pos.Left (TextTitle), Y = Pos.Top (_lblAction), Width = Dim.Fill (), Height = 5
};
Add (TextAction);
CkbIsTopLevel = new ()
{
X = Pos.Left (_lblTitle), Y = Pos.Bottom (_lblAction) + 5, Text = "IsTopLevel"
};
Add (CkbIsTopLevel);
CkbSubMenu = new ()
{
X = Pos.Left (_lblTitle),
Y = Pos.Bottom (CkbIsTopLevel),
State = (_menuItem == null ? !_hasParent : HasSubMenus (_menuItem)) ? CheckState.Checked : CheckState.UnChecked,
Text = "Has sub-menus"
};
Add (CkbSubMenu);
CkbNullCheck = new ()
{
X = Pos.Left (_lblTitle), Y = Pos.Bottom (CkbSubMenu), Text = "Allow null checked"
};
Add (CkbNullCheck);
var _rChkLabels = new [] { "NoCheck", "Checked", "Radio" };
RbChkStyle = new ()
{
X = Pos.Left (_lblTitle), Y = Pos.Bottom (CkbSubMenu) + 1, RadioLabels = _rChkLabels
};
Add (RbChkStyle);
var _lblShortcut = new Label
{
X = Pos.Right (CkbSubMenu) + 10, Y = Pos.Top (CkbSubMenu), Text = "Shortcut:"
};
Add (_lblShortcut);
TextShortcut = new ()
{
X = Pos.X (_lblShortcut), Y = Pos.Bottom (_lblShortcut), Width = Dim.Fill (), ReadOnly = true
};
TextShortcut.KeyDown += (s, e) =>
{
if (!ProcessKey (e))
{
return;
}
if (CheckShortcut (e.KeyCode, true))
{
e.Handled = true;
}
};
bool ProcessKey (Key ev)
{
switch (ev.KeyCode)
{
case KeyCode.CursorUp:
case KeyCode.CursorDown:
case KeyCode.Tab:
case KeyCode.Tab | KeyCode.ShiftMask:
return false;
}
return true;
}
bool CheckShortcut (KeyCode k, bool pre)
{
MenuItem m = _menuItem != null ? _menuItem : new ();
if (pre && !ShortcutHelper.PreShortcutValidation (k))
{
TextShortcut.Text = "";
return false;
}
if (!pre)
{
if (!ShortcutHelper.PostShortcutValidation (
ShortcutHelper.GetShortcutFromTag (TextShortcut.Text)
))
{
TextShortcut.Text = "";
return false;
}
return true;
}
TextShortcut.Text =
Key.ToString (
k,
MenuBar.ShortcutDelimiter
); // ShortcutHelper.GetShortcutTag (k);
return true;
}
TextShortcut.KeyUp += (s, e) =>
{
if (CheckShortcut (e.KeyCode, false))
{
e.Handled = true;
}
};
Add (TextShortcut);
var _btnShortcut = new Button
{
X = Pos.X (_lblShortcut), Y = Pos.Bottom (TextShortcut) + 1, Text = "Clear Shortcut"
};
_btnShortcut.Accept += (s, e) => { TextShortcut.Text = ""; };
Add (_btnShortcut);
CkbIsTopLevel.Toggle += (s, e) =>
{
if ((_menuItem != null && _menuItem.Parent != null && CkbIsTopLevel.State == CheckState.Checked)
|| (_menuItem == null && _hasParent && CkbIsTopLevel.State == CheckState.Checked))
{
MessageBox.ErrorQuery (
"Invalid IsTopLevel",
"Only menu bar can have top level menu item!",
"Ok"
);
CkbIsTopLevel.State = CheckState.UnChecked;
return;
}
if (CkbIsTopLevel.State == CheckState.Checked)
{
CkbSubMenu.State = CheckState.UnChecked;
CkbSubMenu.SetNeedsDisplay ();
TextHelp.Enabled = true;
TextAction.Enabled = true;
TextShortcut.Enabled =
CkbIsTopLevel.State == CheckState.UnChecked && CkbSubMenu.State == CheckState.UnChecked;
}
else
{
if ((_menuItem == null && !_hasParent) || _menuItem.Parent == null)
{
CkbSubMenu.State = CheckState.Checked;
CkbSubMenu.SetNeedsDisplay ();
TextShortcut.Enabled = false;
}
TextHelp.Text = "";
TextHelp.Enabled = false;
TextAction.Text = "";
TextAction.Enabled = false;
}
};
CkbSubMenu.Toggle += (s, e) =>
{
if (e.NewValue == CheckState.Checked)
{
CkbIsTopLevel.State = CheckState.UnChecked;
CkbIsTopLevel.SetNeedsDisplay ();
TextHelp.Text = "";
TextHelp.Enabled = false;
TextAction.Text = "";
TextAction.Enabled = false;
TextShortcut.Text = "";
TextShortcut.Enabled = false;
}
else
{
if (!_hasParent)
{
CkbIsTopLevel.State = CheckState.Checked;
CkbIsTopLevel.SetNeedsDisplay ();
TextShortcut.Enabled = false;
}
TextHelp.Enabled = true;
TextAction.Enabled = true;
TextShortcut.Enabled =
CkbIsTopLevel.State == CheckState.UnChecked && CkbSubMenu.State == CheckState.UnChecked;
}
};
CkbNullCheck.Toggle += (s, e) =>
{
if (_menuItem != null)
{
_menuItem.AllowNullChecked = e.NewValue == CheckState.Checked;
}
};
//Add (_frmMenuDetails);
}
public CheckBox CkbIsTopLevel { get; }
public CheckBox CkbNullCheck { get; }
public CheckBox CkbSubMenu { get; }
public RadioGroup RbChkStyle { get; }
public TextView TextAction { get; }
public TextField TextHelp { get; }
public TextField TextShortcut { get; }
public TextField TextTitle { get; }
public Action CreateAction (MenuItem menuItem, DynamicMenuItem item)
{
switch (menuItem.CheckType)
{
case MenuItemCheckStyle.NoCheck:
return () => MessageBox.ErrorQuery (item.Title, item.Action, "Ok");
case MenuItemCheckStyle.Checked:
return menuItem.ToggleChecked;
case MenuItemCheckStyle.Radio:
break;
}
return () =>
{
menuItem.Checked = true;
var parent = menuItem?.Parent as MenuBarItem;
if (parent != null)
{
MenuItem [] childrens = parent.Children;
for (var i = 0; i < childrens.Length; i++)
{
MenuItem child = childrens [i];
if (child != menuItem)
{
child.Checked = false;
}
}
}
};
}
public void EditMenuBarItem (MenuItem menuItem)
{
if (menuItem == null)
{
_hasParent = false;
Enabled = false;
CleanEditMenuBarItem ();
return;
}
_hasParent = menuItem.Parent != null;
Enabled = true;
_menuItem = menuItem;
TextTitle.Text = menuItem?.Title ?? "";
TextHelp.Text = menuItem?.Help ?? "";
TextAction.Text = menuItem != null && menuItem.Action != null
? GetTargetAction (menuItem.Action)
: string.Empty;
CkbIsTopLevel.State = IsTopLevel (menuItem) ? CheckState.Checked : CheckState.UnChecked;
CkbSubMenu.State = HasSubMenus (menuItem) ? CheckState.Checked : CheckState.UnChecked;
CkbNullCheck.State = menuItem.AllowNullChecked ? CheckState.Checked : CheckState.UnChecked;
TextHelp.Enabled = CkbSubMenu.State == CheckState.Checked;
TextAction.Enabled = CkbSubMenu.State == CheckState.Checked;
RbChkStyle.SelectedItem = (int)(menuItem?.CheckType ?? MenuItemCheckStyle.NoCheck);
TextShortcut.Text = menuItem?.ShortcutTag ?? "";
TextShortcut.Enabled = CkbIsTopLevel.State == CheckState.UnChecked && CkbSubMenu.State == CheckState.UnChecked;
}
public DynamicMenuItem EnterMenuItem ()
{
var valid = false;
if (_menuItem == null)
{
var m = new DynamicMenuItem ();
TextTitle.Text = m.Title;
TextHelp.Text = m.Help;
TextAction.Text = m.Action;
CkbIsTopLevel.State = CheckState.UnChecked;
CkbSubMenu.State = !_hasParent ? CheckState.Checked : CheckState.UnChecked;
CkbNullCheck.State = CheckState.UnChecked;
TextHelp.Enabled = _hasParent;
TextAction.Enabled = _hasParent;
TextShortcut.Enabled = _hasParent;
}
else
{
EditMenuBarItem (_menuItem);
}
var btnOk = new Button { IsDefault = true, Text = "Ok" };
btnOk.Accept += (s, e) =>
{
if (string.IsNullOrEmpty (TextTitle.Text))
{
MessageBox.ErrorQuery ("Invalid title", "Must enter a valid title!.", "Ok");
}
else
{
valid = true;
Application.RequestStop ();
}
};
var btnCancel = new Button { Text = "Cancel" };
btnCancel.Accept += (s, e) =>
{
TextTitle.Text = string.Empty;
Application.RequestStop ();
};
var dialog = new Dialog
{ Title = "Enter the menu details.", Buttons = [btnOk, btnCancel], Height = Dim.Auto (DimAutoStyle.Content, 22, Driver.Rows) };
Width = Dim.Fill ();
Height = Dim.Fill () - 1;
dialog.Add (this);
TextTitle.SetFocus ();
TextTitle.CursorPosition = TextTitle.Text.Length;
Application.Run (dialog);
dialog.Dispose ();
if (valid)
{
return new ()
{
Title = TextTitle.Text,
Help = TextHelp.Text,
Action = TextAction.Text,
IsTopLevel = CkbIsTopLevel?.State == CheckState.Checked,
HasSubMenu = CkbSubMenu?.State == CheckState.UnChecked,
CheckStyle = RbChkStyle.SelectedItem == 0 ? MenuItemCheckStyle.NoCheck :
RbChkStyle.SelectedItem == 1 ? MenuItemCheckStyle.Checked :
MenuItemCheckStyle.Radio,
Shortcut = TextShortcut.Text,
AllowNullChecked = CkbNullCheck?.State == CheckState.Checked,
};
}
return null;
}
public void UpdateParent (ref MenuItem menuItem)
{
var parent = menuItem.Parent as MenuBarItem;
int idx = parent.GetChildrenIndex (menuItem);
if (!(menuItem is MenuBarItem))
{
menuItem = new MenuBarItem (menuItem.Title, new MenuItem [] { }, menuItem.Parent);
if (idx > -1)
{
parent.Children [idx] = menuItem;
}
}
else
{
menuItem = new (
menuItem.Title,
menuItem.Help,
CreateAction (menuItem, new ()),
null,
menuItem.Parent
);
if (idx > -1)
{
parent.Children [idx] = menuItem;
}
}
}
private void CleanEditMenuBarItem ()
{
TextTitle.Text = "";
TextHelp.Text = "";
TextAction.Text = "";
CkbIsTopLevel.State = CheckState.UnChecked;
CkbSubMenu.State = CheckState.UnChecked;
RbChkStyle.SelectedItem = (int)MenuItemCheckStyle.NoCheck;
TextShortcut.Text = "";
}
private string GetTargetAction (Action action)
{
object me = action.Target;
if (me == null)
{
throw new ArgumentException ();
}
var v = new object ();
foreach (FieldInfo field in me.GetType ().GetFields ())
{
if (field.Name == "item")
{
v = field.GetValue (me);
}
}
return v == null || !(v is DynamicMenuItem item) ? string.Empty : item.Action;
}
private bool HasSubMenus (MenuItem menuItem)
{
var menuBarItem = menuItem as MenuBarItem;
if (menuBarItem != null && menuBarItem.Children != null && (menuBarItem.Children.Length > 0 || menuBarItem.Action == null))
{
return true;
}
return false;
}
private bool IsTopLevel (MenuItem menuItem)
{
var topLevel = menuItem as MenuBarItem;
if (topLevel != null && topLevel.Parent == null && (topLevel.Children == null || topLevel.Children.Length == 0) && topLevel.Action != null)
{
return true;
}
return false;
}
}
public class DynamicMenuBarSample : Window
{
private readonly ListView _lstMenus;
private MenuItem _currentEditMenuBarItem;
private MenuItem _currentMenuBarItem;
private int _currentSelectedMenuBar;
private MenuBar _menuBar;
public DynamicMenuBarSample ()
{
DataContext = new ();
var _frmDelimiter = new FrameView
{
X = Pos.Center (),
Y = 3,
Width = 25,
Height = 4,
Title = "Shortcut Delimiter:"
};
var _txtDelimiter = new TextField
{
X = Pos.Center (), Width = 2, Text = MenuBar.ShortcutDelimiter.ToString ()
};
_txtDelimiter.TextChanged += (s, _) =>
MenuBar.ShortcutDelimiter = _txtDelimiter.Text.ToRunes () [0];
_frmDelimiter.Add (_txtDelimiter);
Add (_frmDelimiter);
var _frmMenu = new FrameView { Y = 7, Width = Dim.Percent (50), Height = Dim.Fill (), Title = "Menus:" };
var _btnAddMenuBar = new Button { Y = 1, Text = "Add a MenuBar" };
_frmMenu.Add (_btnAddMenuBar);
var _btnMenuBarUp = new Button { X = Pos.Center (), Text = CM.Glyphs.UpArrow.ToString () };
_frmMenu.Add (_btnMenuBarUp);
var _btnMenuBarDown = new Button { X = Pos.Center (), Y = Pos.Bottom (_btnMenuBarUp), Text = CM.Glyphs.DownArrow.ToString () };
_frmMenu.Add (_btnMenuBarDown);
var _btnRemoveMenuBar = new Button { Y = 1, Text = "Remove a MenuBar" };
_btnRemoveMenuBar.X = Pos.AnchorEnd (0) - (Pos.Right (_btnRemoveMenuBar) - Pos.Left (_btnRemoveMenuBar));
_frmMenu.Add (_btnRemoveMenuBar);
var _btnPrevious = new Button
{
X = Pos.Left (_btnAddMenuBar), Y = Pos.Top (_btnAddMenuBar) + 2, Text = CM.Glyphs.LeftArrow.ToString ()
};
_frmMenu.Add (_btnPrevious);
var _btnAdd = new Button { Y = Pos.Top (_btnPrevious) + 2, Text = " Add " };
_btnAdd.X = Pos.AnchorEnd ();
_frmMenu.Add (_btnAdd);
var _btnNext = new Button { X = Pos.X (_btnAdd), Y = Pos.Top (_btnPrevious), Text = CM.Glyphs.RightArrow.ToString () };
_frmMenu.Add (_btnNext);
var _lblMenuBar = new Label
{
ColorScheme = Colors.ColorSchemes ["Dialog"],
TextAlignment = Alignment.Center,
X = Pos.Right (_btnPrevious) + 1,
Y = Pos.Top (_btnPrevious),
Width = Dim.Fill () - Dim.Func (() => _btnAdd.Frame.Width + 1),
Height = 1
};
_frmMenu.Add (_lblMenuBar);
_lblMenuBar.WantMousePositionReports = true;
_lblMenuBar.CanFocus = true;
var _lblParent = new Label
{
TextAlignment = Alignment.Center,
X = Pos.Right (_btnPrevious) + 1,
Y = Pos.Top (_btnPrevious) + 1,
Width = Dim.Fill () - Dim.Width (_btnAdd) - 1
};
_frmMenu.Add (_lblParent);
var _btnPreviowsParent = new Button
{
X = Pos.Left (_btnAddMenuBar), Y = Pos.Top (_btnPrevious) + 1, Text = ".."
};
_frmMenu.Add (_btnPreviowsParent);
_lstMenus = new ()
{
ColorScheme = Colors.ColorSchemes ["Dialog"],
X = Pos.Right (_btnPrevious) + 1,
Y = Pos.Top (_btnPrevious) + 2,
Width = _lblMenuBar.Width,
Height = Dim.Fill (),
Source = new ListWrapper<DynamicMenuItemList> ([])
};
_frmMenu.Add (_lstMenus);
_lblMenuBar.TabIndex = _btnPrevious.TabIndex + 1;
_lstMenus.TabIndex = _lblMenuBar.TabIndex + 1;
_btnNext.TabIndex = _lstMenus.TabIndex + 1;
_btnAdd.TabIndex = _btnNext.TabIndex + 1;
var _btnRemove = new Button { X = Pos.Left (_btnAdd), Y = Pos.Top (_btnAdd) + 1, Text = "Remove" };
_frmMenu.Add (_btnRemove);
var _btnUp = new Button { X = Pos.Right (_lstMenus) + 2, Y = Pos.Top (_btnRemove) + 2, Text = CM.Glyphs.UpArrow.ToString () };
_frmMenu.Add (_btnUp);
var _btnDown = new Button { X = Pos.Right (_lstMenus) + 2, Y = Pos.Top (_btnUp) + 1, Text = CM.Glyphs.DownArrow.ToString () };
_frmMenu.Add (_btnDown);
Add (_frmMenu);
var _frmMenuDetails = new DynamicMenuBarDetails
{
X = Pos.Right (_frmMenu),
Y = Pos.Top (_frmMenu),
Width = Dim.Fill (),
Height = Dim.Fill (2),
Title = "Menu Details:"
};
Add (_frmMenuDetails);
_btnMenuBarUp.Accept += (s, e) =>
{
int i = _currentSelectedMenuBar;
MenuBarItem menuItem = _menuBar != null && _menuBar.Menus.Length > 0
? _menuBar.Menus [i]
: null;
if (menuItem != null)
{
MenuBarItem [] menus = _menuBar.Menus;
if (i > 0)
{
menus [i] = menus [i - 1];
menus [i - 1] = menuItem;
_currentSelectedMenuBar = i - 1;
_menuBar.SetNeedsDisplay ();
}
}
};
_btnMenuBarDown.Accept += (s, e) =>
{
int i = _currentSelectedMenuBar;
MenuBarItem menuItem = _menuBar != null && _menuBar.Menus.Length > 0
? _menuBar.Menus [i]
: null;
if (menuItem != null)
{
MenuBarItem [] menus = _menuBar.Menus;
if (i < menus.Length - 1)
{
menus [i] = menus [i + 1];
menus [i + 1] = menuItem;
_currentSelectedMenuBar = i + 1;
_menuBar.SetNeedsDisplay ();
}
}
};
_btnUp.Accept += (s, e) =>
{
int i = _lstMenus.SelectedItem;
MenuItem menuItem = DataContext.Menus.Count > 0 ? DataContext.Menus [i].MenuItem : null;
if (menuItem != null)
{
MenuItem [] childrens = ((MenuBarItem)_currentMenuBarItem).Children;
if (i > 0)
{
childrens [i] = childrens [i - 1];
childrens [i - 1] = menuItem;
DataContext.Menus [i] = DataContext.Menus [i - 1];
DataContext.Menus [i - 1] =
new () { Title = menuItem.Title, MenuItem = menuItem };
_lstMenus.SelectedItem = i - 1;
}
}
};
_btnDown.Accept += (s, e) =>
{
int i = _lstMenus.SelectedItem;
MenuItem menuItem = DataContext.Menus.Count > 0 ? DataContext.Menus [i].MenuItem : null;
if (menuItem != null)
{
MenuItem [] childrens = ((MenuBarItem)_currentMenuBarItem).Children;
if (i < childrens.Length - 1)
{
childrens [i] = childrens [i + 1];
childrens [i + 1] = menuItem;
DataContext.Menus [i] = DataContext.Menus [i + 1];
DataContext.Menus [i + 1] =
new () { Title = menuItem.Title, MenuItem = menuItem };
_lstMenus.SelectedItem = i + 1;
}
}
};
_btnPreviowsParent.Accept += (s, e) =>
{
if (_currentMenuBarItem != null && _currentMenuBarItem.Parent != null)
{
MenuItem mi = _currentMenuBarItem;
_currentMenuBarItem = _currentMenuBarItem.Parent as MenuBarItem;
SetListViewSource (_currentMenuBarItem, true);
int i = ((MenuBarItem)_currentMenuBarItem).GetChildrenIndex (mi);
if (i > -1)
{
_lstMenus.SelectedItem = i;
}
if (_currentMenuBarItem.Parent != null)
{
DataContext.Parent = _currentMenuBarItem.Title;
}
else
{
DataContext.Parent = string.Empty;
}
}
else
{
DataContext.Parent = string.Empty;
}
};
var _btnOk = new Button { X = Pos.Right (_frmMenu) + 20, Y = Pos.Bottom (_frmMenuDetails), Text = "Ok" };
Add (_btnOk);
var _btnCancel = new Button { X = Pos.Right (_btnOk) + 3, Y = Pos.Top (_btnOk), Text = "Cancel" };
_btnCancel.Accept += (s, e) => { SetFrameDetails (_currentEditMenuBarItem); };
Add (_btnCancel);
_lstMenus.SelectedItemChanged += (s, e) => { SetFrameDetails (); };
_btnOk.Accept += (s, e) =>
{
if (string.IsNullOrEmpty (_frmMenuDetails.TextTitle.Text) && _currentEditMenuBarItem != null)
{
MessageBox.ErrorQuery ("Invalid title", "Must enter a valid title!.", "Ok");
}
else if (_currentEditMenuBarItem != null)
{
var menuItem = new DynamicMenuItem
{
Title = _frmMenuDetails.TextTitle.Text,
Help = _frmMenuDetails.TextHelp.Text,
Action = _frmMenuDetails.TextAction.Text,
IsTopLevel = _frmMenuDetails.CkbIsTopLevel?.State == CheckState.UnChecked,
HasSubMenu = _frmMenuDetails.CkbSubMenu?.State == CheckState.UnChecked,
CheckStyle = _frmMenuDetails.RbChkStyle.SelectedItem == 0
? MenuItemCheckStyle.NoCheck
: _frmMenuDetails.RbChkStyle.SelectedItem == 1
? MenuItemCheckStyle.Checked
: MenuItemCheckStyle.Radio,
Shortcut = _frmMenuDetails.TextShortcut.Text
};
UpdateMenuItem (_currentEditMenuBarItem, menuItem, _lstMenus.SelectedItem);
}
};
_btnAdd.Accept += (s, e) =>
{
if (MenuBar == null)
{
MessageBox.ErrorQuery ("Menu Bar Error", "Must add a MenuBar first!", "Ok");
_btnAddMenuBar.SetFocus ();
return;
}
var frameDetails = new DynamicMenuBarDetails (null, _currentMenuBarItem != null);
DynamicMenuItem item = frameDetails.EnterMenuItem ();
if (item == null)
{
return;
}
if (_currentMenuBarItem is not MenuBarItem)
{
var parent = _currentMenuBarItem.Parent as MenuBarItem;
int idx = parent.GetChildrenIndex (_currentMenuBarItem);
_currentMenuBarItem = new MenuBarItem (
_currentMenuBarItem.Title,
new MenuItem [] { },
_currentMenuBarItem.Parent
);
_currentMenuBarItem.CheckType = item.CheckStyle;
parent.Children [idx] = _currentMenuBarItem;
}
else
{
MenuItem newMenu = CreateNewMenu (item, _currentMenuBarItem);
var menuBarItem = _currentMenuBarItem as MenuBarItem;
if (menuBarItem == null)
{
menuBarItem = new (
_currentMenuBarItem.Title,
new [] { newMenu },
_currentMenuBarItem.Parent
);
}
else if (menuBarItem.Children == null)
{
menuBarItem.Children = new [] { newMenu };
}
else
{
MenuItem [] childrens = menuBarItem.Children;
Array.Resize (ref childrens, childrens.Length + 1);
childrens [childrens.Length - 1] = newMenu;
menuBarItem.Children = childrens;
}
DataContext.Menus.Add (new () { Title = newMenu.Title, MenuItem = newMenu });
_lstMenus.MoveDown ();
}
};
_btnRemove.Accept += (s, e) =>
{
MenuItem menuItem = DataContext.Menus.Count > 0
? DataContext.Menus [_lstMenus.SelectedItem].MenuItem
: null;
if (menuItem != null)
{
MenuItem [] childrens = ((MenuBarItem)_currentMenuBarItem).Children;
childrens [_lstMenus.SelectedItem] = null;
var i = 0;
foreach (MenuItem c in childrens)
{
if (c != null)
{
childrens [i] = c;
i++;
}
}
Array.Resize (ref childrens, childrens.Length - 1);
if (childrens.Length == 0)
{
if (_currentMenuBarItem.Parent == null)
{
((MenuBarItem)_currentMenuBarItem).Children = null;
//_currentMenuBarItem.Action = _frmMenuDetails.CreateAction (_currentEditMenuBarItem, new DynamicMenuItem (_currentMenuBarItem.Title));
}
else
{
_currentMenuBarItem = new (
_currentMenuBarItem.Title,
_currentMenuBarItem.Help,
_frmMenuDetails.CreateAction (
_currentEditMenuBarItem,
new ()
{
Title = _currentEditMenuBarItem
.Title
}
),
null,
_currentMenuBarItem.Parent
);
}
}
else
{
((MenuBarItem)_currentMenuBarItem).Children = childrens;
}
DataContext.Menus.RemoveAt (_lstMenus.SelectedItem);
if (_lstMenus.Source.Count > 0 && _lstMenus.SelectedItem > _lstMenus.Source.Count - 1)
{
_lstMenus.SelectedItem = _lstMenus.Source.Count - 1;
}
_lstMenus.SetNeedsDisplay ();
SetFrameDetails ();
}
};
_lstMenus.OpenSelectedItem += (s, e) =>
{
_currentMenuBarItem = DataContext.Menus [e.Item].MenuItem;
if (!(_currentMenuBarItem is MenuBarItem))
{
MessageBox.ErrorQuery ("Menu Open Error", "Must allows sub menus first!", "Ok");
return;
}
DataContext.Parent = _currentMenuBarItem.Title;
DataContext.Menus = new ();
SetListViewSource (_currentMenuBarItem, true);
MenuItem menuBarItem = DataContext.Menus.Count > 0 ? DataContext.Menus [0].MenuItem : null;
SetFrameDetails (menuBarItem);
};
_lstMenus.Enter += (s, e) =>
{
MenuItem menuBarItem = _lstMenus.SelectedItem > -1 && DataContext.Menus.Count > 0
? DataContext.Menus [_lstMenus.SelectedItem].MenuItem
: null;
SetFrameDetails (menuBarItem);
};
_btnNext.Accept += (s, e) =>
{
if (_menuBar != null && _currentSelectedMenuBar + 1 < _menuBar.Menus.Length)
{
_currentSelectedMenuBar++;
}
SelectCurrentMenuBarItem ();
};
_btnPrevious.Accept += (s, e) =>
{
if (_currentSelectedMenuBar - 1 > -1)
{
_currentSelectedMenuBar--;
}
SelectCurrentMenuBarItem ();
};
_lblMenuBar.Enter += (s, e) =>
{
if (_menuBar?.Menus != null)
{
_currentMenuBarItem = _menuBar.Menus [_currentSelectedMenuBar];
SetFrameDetails (_menuBar.Menus [_currentSelectedMenuBar]);
}
};
_btnAddMenuBar.Accept += (s, e) =>
{
var frameDetails = new DynamicMenuBarDetails (null);
DynamicMenuItem item = frameDetails.EnterMenuItem ();
if (item == null)
{
return;
}
if (MenuBar == null)
{
_menuBar = new ();
Add (_menuBar);
}
var newMenu = CreateNewMenu (item) as MenuBarItem;
MenuBarItem [] menus = _menuBar.Menus;
Array.Resize (ref menus, menus.Length + 1);
menus [^1] = newMenu;
_menuBar.Menus = menus;
_currentMenuBarItem = newMenu;
_currentMenuBarItem.CheckType = item.CheckStyle;
_currentSelectedMenuBar = menus.Length - 1;
_menuBar.Menus [_currentSelectedMenuBar] = newMenu;
_lblMenuBar.Text = newMenu.Title;
SetListViewSource (_currentMenuBarItem, true);
SetFrameDetails (_menuBar.Menus [_currentSelectedMenuBar]);
_menuBar.SetNeedsDisplay ();
};
_btnRemoveMenuBar.Accept += (s, e) =>
{
if (_menuBar == null || _menuBar.Menus.Length == 0)
{
return;
}
if (_menuBar != null && _menuBar.Menus.Length > 0)
{
_menuBar.Menus [_currentSelectedMenuBar] = null;
var i = 0;
foreach (MenuBarItem m in _menuBar.Menus)
{
if (m != null)
{
_menuBar.Menus [i] = m;
i++;
}
}
MenuBarItem [] menus = _menuBar.Menus;
Array.Resize (ref menus, menus.Length - 1);
_menuBar.Menus = menus;
if (_currentSelectedMenuBar - 1 >= 0 && _menuBar.Menus.Length > 0)
{
_currentSelectedMenuBar--;
}
_currentMenuBarItem = _menuBar.Menus?.Length > 0
? _menuBar.Menus [_currentSelectedMenuBar]
: null;
}
if (MenuBar != null && _currentMenuBarItem == null && _menuBar.Menus.Length == 0)
{
Remove (_menuBar);
_menuBar = null;
DataContext.Menus = new ();
_currentMenuBarItem = null;
_currentSelectedMenuBar = -1;
_lblMenuBar.Text = string.Empty;
}
else
{
_lblMenuBar.Text = _menuBar.Menus [_currentSelectedMenuBar].Title;
}
SetListViewSource (_currentMenuBarItem, true);
SetFrameDetails ();
};
SetFrameDetails ();
var ustringConverter = new UStringValueConverter ();
ListWrapperConverter<DynamicMenuItemList> listWrapperConverter = new ListWrapperConverter<DynamicMenuItemList> ();
var lblMenuBar = new Binding (this, "MenuBar", _lblMenuBar, "Text", ustringConverter);
var lblParent = new Binding (this, "Parent", _lblParent, "Text", ustringConverter);
var lstMenus = new Binding (this, "Menus", _lstMenus, "Source", listWrapperConverter);
void SetFrameDetails (MenuItem menuBarItem = null)
{
MenuItem menuItem;
if (menuBarItem == null)
{
menuItem = _lstMenus.SelectedItem > -1 && DataContext.Menus.Count > 0
? DataContext.Menus [_lstMenus.SelectedItem].MenuItem
: null;
}
else
{
menuItem = menuBarItem;
}
_currentEditMenuBarItem = menuItem;
_frmMenuDetails.EditMenuBarItem (menuItem);
bool f = _btnOk.Enabled == _frmMenuDetails.Enabled;
if (!f)
{
_btnOk.Enabled = _frmMenuDetails.Enabled;
_btnCancel.Enabled = _frmMenuDetails.Enabled;
}
}
void SelectCurrentMenuBarItem ()
{
MenuBarItem menuBarItem = null;
if (_menuBar?.Menus != null)
{
menuBarItem = _menuBar.Menus [_currentSelectedMenuBar];
_lblMenuBar.Text = menuBarItem.Title;
}
SetFrameDetails (menuBarItem);
_currentMenuBarItem = menuBarItem;
DataContext.Menus = new ();
SetListViewSource (_currentMenuBarItem, true);
_lblParent.Text = string.Empty;
}
void SetListViewSource (MenuItem _currentMenuBarItem, bool fill = false)
{
DataContext.Menus = [];
var menuBarItem = _currentMenuBarItem as MenuBarItem;
if (menuBarItem != null && menuBarItem?.Children == null)
{
return;
}
if (!fill)
{
return;
}
if (menuBarItem != null)
{
foreach (MenuItem child in menuBarItem?.Children)
{
var m = new DynamicMenuItemList { Title = child.Title, MenuItem = child };
DataContext.Menus.Add (m);
}
}
}
MenuItem CreateNewMenu (DynamicMenuItem item, MenuItem parent = null)
{
MenuItem newMenu;
if (item.HasSubMenu)
{
newMenu = new MenuBarItem (item.Title, new MenuItem [] { }, parent);
}
else if (parent != null)
{
newMenu = new (item.Title, item.Help, null, null, parent);
newMenu.CheckType = item.CheckStyle;
newMenu.Action = _frmMenuDetails.CreateAction (newMenu, item);
newMenu.Shortcut = ShortcutHelper.GetShortcutFromTag (item.Shortcut);
newMenu.AllowNullChecked = item.AllowNullChecked;
}
else if (item.IsTopLevel)
{
newMenu = new MenuBarItem (item.Title, item.Help, null);
newMenu.Action = _frmMenuDetails.CreateAction (newMenu, item);
}
else
{
newMenu = new MenuBarItem (item.Title, item.Help, null);
((MenuBarItem)newMenu).Children [0].Action =
_frmMenuDetails.CreateAction (newMenu, item);
((MenuBarItem)newMenu).Children [0].Shortcut =
ShortcutHelper.GetShortcutFromTag (item.Shortcut);
}
return newMenu;
}
void UpdateMenuItem (MenuItem _currentEditMenuBarItem, DynamicMenuItem menuItem, int index)
{
_currentEditMenuBarItem.Title = menuItem.Title;
_currentEditMenuBarItem.Help = menuItem.Help;
_currentEditMenuBarItem.CheckType = menuItem.CheckStyle;
var parent = _currentEditMenuBarItem.Parent as MenuBarItem;
if (parent != null && parent.Children.Length == 1 && _currentEditMenuBarItem.CheckType == MenuItemCheckStyle.Radio)
{
_currentEditMenuBarItem.Checked = true;
}
if (menuItem.IsTopLevel && _currentEditMenuBarItem is MenuBarItem)
{
((MenuBarItem)_currentEditMenuBarItem).Children = null;
_currentEditMenuBarItem.Action =
_frmMenuDetails.CreateAction (_currentEditMenuBarItem, menuItem);
SetListViewSource (_currentEditMenuBarItem, true);
}
else if (menuItem.HasSubMenu)
{
_currentEditMenuBarItem.Action = null;
if (_currentEditMenuBarItem is MenuBarItem && ((MenuBarItem)_currentEditMenuBarItem).Children == null)
{
((MenuBarItem)_currentEditMenuBarItem).Children = new MenuItem [] { };
}
else if (_currentEditMenuBarItem.Parent != null)
{
_frmMenuDetails.UpdateParent (ref _currentEditMenuBarItem);
}
else
{
_currentEditMenuBarItem =
new MenuBarItem (
_currentEditMenuBarItem.Title,
new MenuItem [] { },
_currentEditMenuBarItem.Parent
);
}
SetListViewSource (_currentEditMenuBarItem, true);
}
else if (_currentEditMenuBarItem is MenuBarItem && _currentEditMenuBarItem.Parent != null)
{
_frmMenuDetails.UpdateParent (ref _currentEditMenuBarItem);
_currentEditMenuBarItem = new (
menuItem.Title,
menuItem.Help,
_frmMenuDetails.CreateAction (_currentEditMenuBarItem, menuItem),
null,
_currentEditMenuBarItem.Parent
);
}
else
{
if (_currentEditMenuBarItem is MenuBarItem)
{
((MenuBarItem)_currentEditMenuBarItem).Children = null;
DataContext.Menus = new ();
}
_currentEditMenuBarItem.Action =
_frmMenuDetails.CreateAction (_currentEditMenuBarItem, menuItem);
_currentEditMenuBarItem.Shortcut =
ShortcutHelper.GetShortcutFromTag (menuItem.Shortcut);
}
if (_currentEditMenuBarItem.Parent == null)
{
DataContext.MenuBar = _currentEditMenuBarItem.Title;
}
else
{
if (DataContext.Menus.Count == 0)
{
DataContext.Menus.Add (
new ()
{
Title = _currentEditMenuBarItem.Title, MenuItem = _currentEditMenuBarItem
}
);
}
DataContext.Menus [index] =
new ()
{
Title = _currentEditMenuBarItem.Title, MenuItem = _currentEditMenuBarItem
};
}
_currentEditMenuBarItem.CheckType = menuItem.CheckStyle;
SetFrameDetails (_currentEditMenuBarItem);
}
//_frmMenuDetails.Initialized += (s, e) => _frmMenuDetails.Enabled = false;
}
public DynamicMenuItemModel DataContext { get; set; }
}
public class DynamicMenuItem
{
public string Action { get; set; } = string.Empty;
public bool AllowNullChecked { get; set; }
public MenuItemCheckStyle CheckStyle { get; set; }
public bool HasSubMenu { get; set; }
public string Help { get; set; } = string.Empty;
public bool IsTopLevel { get; set; }
public string Shortcut { get; set; }
public string Title { get; set; } = "_New";
}
public class DynamicMenuItemList
{
public MenuItem MenuItem { get; set; }
public string Title { get; set; }
public override string ToString () { return $"{Title}, {MenuItem}"; }
}
public class DynamicMenuItemModel : INotifyPropertyChanged
{
private string _menuBar;
private ObservableCollection<DynamicMenuItemList> _menus;
private string _parent;
public DynamicMenuItemModel () { Menus = []; }
public string MenuBar
{
get => _menuBar;
set
{
if (value == _menuBar)
{
return;
}
_menuBar = value;
PropertyChanged?.Invoke (
this,
new (GetPropertyName ())
);
}
}
public ObservableCollection<DynamicMenuItemList> Menus
{
get => _menus;
set
{
if (value == _menus)
{
return;
}
_menus = value;
PropertyChanged?.Invoke (
this,
new (GetPropertyName ())
);
}
}
public string Parent
{
get => _parent;
set
{
if (value == _parent)
{
return;
}
_parent = value;
PropertyChanged?.Invoke (
this,
new (GetPropertyName ())
);
}
}
public event PropertyChangedEventHandler PropertyChanged;
public string GetPropertyName ([CallerMemberName] string propertyName = null) { return propertyName; }
}
public interface IValueConverter
{
object Convert (object value, object parameter = null);
}
public class ListWrapperConverter<T> : IValueConverter
{
public object Convert (object value, object parameter = null) { return new ListWrapper<T> ((ObservableCollection<T>)value); }
}
public class UStringValueConverter : IValueConverter
{
public object Convert (object value, object parameter = null)
{
byte [] data = Encoding.ASCII.GetBytes (value.ToString () ?? string.Empty);
return StringExtensions.ToString (data);
}
}
}