/// <summary>
/// Initializes the menu components.
/// </summary>
public void LateInitialize()
{
// adding the head of the menu to the list of menus
AllMenuTitles.Add(Items[0].Header);
foreach (var t in Items)
{
Game.Components.Add(t);
// Add the child component to the game with the modified parameters.
if (t.Items.Count > 0)
{
AllSubMenuTitles.Add(t.Header);
if (!OpenSubMenuDictionary.ContainsKey(t.Header))
{
OpenSubMenuDictionary.Add(t.Header, false);
}
}
}
Items[0].Width += (int)Items[0].Padding.Left + (int)Items[0].Padding.Right;
Items[0].Height += (int)Items[0].Padding.Top + (int)Items[0].Padding.Bottom;
Items[0].Margin = new Thickness(Margin.Left, Margin.Top, Margin.Right, Margin.Bottom);
CalculateGreatestWidth();
SetWidthAndHeight();
IsEnabled = true;
_lateInitialize = true;
}
private void MouseDownUpEvent()
{
// set bool to toggle check marks if IsCheckable on mouse down.
if (IsCheckable)
{
IsChecked = !IsChecked;
}
// causes the menu to close when a menu item is clicked, and it is not the head
// of the menu.
if (!AllSubMenuTitles.Contains(Header) && !AllMenuTitles.Contains(Header))
{
MenuVisibilityCount = 0;
}
}
/// <summary>
/// Draws the Menu Item.
/// </summary>
/// <param name="gameTime"></param>
public override void Draw(GameTime gameTime)
{
base.Draw(gameTime);
if (Visible == Visibility.Visible)
{
if (Items.Count > 0 && !_menuItemVariablesFinalized)
{
_menuItemVariablesFinalized = true;
CalculateGreatestWidth();
SetWidthAndHeight();
}
SpriteBatch.Begin();
if (!_transparent)
{
if (AllMenuTitles.Contains(Header))
{
if (MouseEntered)
{
SpriteBatch.Draw(Pixel, Panel, Color.LightGray * 0.25f);
}
else
{
SpriteBatch.Draw(Pixel, Panel, _backgroundColor);
}
}
if (!AllMenuTitles.Contains(Header))
{
var opacity = (float)Opacity * 0.45f;
// drawing the drop shadow.
if (!_dropShadowRectMeasured)
{
MeasureGhostRect();
}
SpriteBatch.Draw(Pixel, _dropShadowRect, Color.Black * opacity);
// highlights the hovered menu item.
if (MouseEntered || (_subMenuPanel.Contains(MsRect) && Items[0].Visible == Visibility.Visible))
{
SpriteBatch.Draw(Pixel, Panel, _backgroundColor);
SpriteBatch.Draw(Pixel, Panel, Color.LightGray * 0.35f);
// borders the top of the menu item
SpriteBatch.Draw(Pixel, _strokePanelTop, _stroke * (float)Opacity);
// borders the bottom of the menu item.
SpriteBatch.Draw(Pixel, _strokePanelBottom, _stroke * (float)Opacity);
// borders the left side of the menu item.
SpriteBatch.Draw(Pixel, _strokePanelLeft, _stroke * (float)Opacity);
// borders the right side of the menu item.
SpriteBatch.Draw(Pixel, _strokePanelRight, _stroke * (float)Opacity);
}
else
{
if (!AllMenuTitles.Contains(Header))
{
SpriteBatch.Draw(Pixel, Panel, _backgroundColor);
SpriteBatch.Draw(Pixel, _strokePanelLeft, _stroke * (float)Opacity);
SpriteBatch.Draw(Pixel, _strokePanelRight, _stroke * (float)Opacity);
}
}
}
if (AllSubMenuTitles.Contains(Header))
{
ArrowRect.X = Panel.X + Panel.Width - (Arrow.Width + 5);
ArrowRect.Y = (Panel.Y + (Height / 2)) - (ArrowRect.Height / 2);
SpriteBatch.Draw(Arrow, ArrowRect, Color.White * (float)Opacity);
}
}
if (SubMenuOpened)
{
SpriteBatch.Draw(Pixel, _subMenuPanel, Color.Black);
}
if (IsEnabled)
{
SpriteBatch.DrawString(SpriteFont, Text, _textPos, ForegroundColor * (float)Opacity);
}
else
{
SpriteBatch.DrawString(SpriteFont, Text, _textPos, ForegroundColor * 0.3f);
}
if (IsChecked)
{
MeasureCheckMark();
SpriteBatch.Draw(CheckMark, CheckMarkRect, Color.White * (float)Opacity);
}
SpriteBatch.End();
}
}
/// <summary>
/// Updates the menu item.
/// </summary>
public override void Update(GameTime gameTime)
{
base.Update(gameTime);
if (_fontFamilyChanged)
{
_fontFamilyChanged = false;
UpdateFontFamily(_fontFamily);
SpriteFont.Spacing = Spacing;
RecalculateWidthAndHeight(Header);
MarginChanged = true;
}
if (MarginChanged)
{
MarginChanged = false;
Margin = new Thickness(Margin.Left, Margin.Top, Margin.Right, Margin.Bottom);
if (AllMenuTitles.Contains(Header))
{
Panel = new Rectangle((int)Position.X, (int)Position.Y, (int)SpriteFont.MeasureString(Text).X + (int)Padding.Left + (int)Padding.Right, Height + (int)Padding.Top + (int)Padding.Bottom);
_textPos = new Vector2(Position.X + (int)Padding.Left, Position.Y + (int)Padding.Top);
}
else
{
Panel = new Rectangle((int)Position.X, (int)Position.Y, Width, Height);
_textPos = new Vector2(Position.X + (int)Padding.Left + _checkMarkWidth, Position.Y + (int)Padding.Top);
}
}
if (!_lateInitialize)
{
LateInitialize();
}
if (!_headerHeightRecalculated)
{
_headerHeightRecalculated = true;
if (AllMenuTitles.Contains(Header))
{
Panel = new Rectangle((int)Margin.Left, (int)Margin.Top, Width + (int)Padding.Left + (int)Padding.Right, Height);
}
}
if (IsEnabled)
{
// opens a sub-menu panel, if it exists.
if (MouseEntered && Items.Count > 0 && Visible == Visibility.Visible)
{
SubMenuOpened = true;
foreach (var t in Items)
{
t.Visible = Visibility.Visible;
}
if (!SubMenuKeyAdded)
{
SubMenuKeyAdded = true;
if (OpenSubMenuDictionary.ContainsKey(Header))
{
OpenSubMenuDictionary.Remove(Header);
OpenSubMenuDictionary.Add(Header, true);
}
}
}
else
{
if (!SubMenuOpened)
{
foreach (var t in Items)
{
t.Visible = Visibility.Hidden;
}
}
else if (Items.Count > 0 && !_subMenuPanel.Contains(MsRect))
{
// Check whether the submenu has a submenu. If so,
// don't close the menu.
foreach (var xamLiteMenuItem in Items)
{
if (xamLiteMenuItem.Items.Count > 0 && xamLiteMenuItem.Items[0].Visible == Visibility.Visible)
{
return;
}
}
SubMenuOpened = false;
SubMenuKeyAdded = false;
if (OpenSubMenuDictionary.ContainsKey(Header))
{
OpenSubMenuDictionary.Remove(Header);
OpenSubMenuDictionary.Add(Header, false);
}
}
}
// closes sub-menu panel after a menu item has been selected.
if (Ms.LeftButton == ButtonState.Pressed)
{
if (Math.Abs(MousePressPosition.X - Ms.X) < 0.01 && Math.Abs(MousePressPosition.Y - Ms.Y) < 0.01)
{
if (_subMenuPanel.Contains(MsRect))
{
SubMenuOpened = false;
SubMenuKeyAdded = false;
OpenSubMenuDictionary.Remove(Header);
OpenSubMenuDictionary.Add(Header, false);
}
}
}
}
}
