#region Imports
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using DPumpHydr.WinFrmUI.RLT.Child.Metro;
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using DPumpHydr.WinFrmUI.RLT.Design.Metro;
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using DPumpHydr.WinFrmUI.RLT.Enum.Metro;
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using DPumpHydr.WinFrmUI.RLT.Extension.Metro;
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using DPumpHydr.WinFrmUI.RLT.Interface.Metro;
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using DPumpHydr.WinFrmUI.RLT.Manager;
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using DPumpHydr.WinFrmUI.RLT.Native;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Drawing.Text;
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using System.Runtime.InteropServices;
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using System.Windows.Forms;
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#endregion
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namespace DPumpHydr.WinFrmUI.RLT.Controls
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{
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#region MetroListBox
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[ToolboxItem(true)]
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[ToolboxBitmap(typeof(MetroListBox), "Bitmaps.ListBox.bmp")]
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[Designer(typeof(MetroListBoxDesigner))]
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[DefaultProperty("Items")]
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[DefaultEvent("SelectedIndexChanged")]
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[ComVisible(true)]
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public class MetroListBox : Control, IMetroControl
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{
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#region Interfaces
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[Category("Metro"), Description("Gets or sets the style associated with the control.")]
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public Style Style
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{
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get => StyleManager?.Style ?? _style;
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set
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{
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_style = value;
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switch (value)
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{
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case Style.Light:
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ApplyTheme();
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break;
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case Style.Dark:
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ApplyTheme(Style.Dark);
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break;
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case Style.Custom:
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ApplyTheme(Style.Custom);
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break;
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default:
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ApplyTheme();
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break;
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}
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_svs.Style = value;
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Invalidate();
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}
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}
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[Category("Metro"), Description("Gets or sets the Style Manager associated with the control.")]
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public MetroStyleManager StyleManager
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{
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get => _styleManager;
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set
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{
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_styleManager = value;
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Invalidate();
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}
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}
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[Category("Metro"), Description("Gets or sets the The Author name associated with the theme.")]
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public string ThemeAuthor { get; set; }
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[Category("Metro"), Description("Gets or sets the The Theme name associated with the theme.")]
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public string ThemeName { get; set; }
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#endregion Interfaces
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#region Global Vars
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private readonly Utilites _utl;
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#endregion Global Vars
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#region Internal Vars
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private Style _style;
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private MetroStyleManager _styleManager;
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private List<object> _indicates;
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private bool _multiSelect;
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private int _selectedIndex;
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private object _selectedItem;
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private string _selectedText;
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private bool _showScrollBar;
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private bool _multiKeyDown;
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private int _hoveredItem;
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private MetroScrollBar _svs;
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private object _selectedValue;
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private bool _isDerivedStyle = true;
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private int _itemHeight;
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private bool _showBorder;
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private Color _selectedItemColor;
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private Color _selectedItemBackColor;
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private Color _hoveredItemColor;
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private Color _hoveredItemBackColor;
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private Color _disabledForeColor;
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private Color _disabledBackColor;
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private Color _borderColor;
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#endregion Internal Vars
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#region Constructors
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public MetroListBox()
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{
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SetStyle
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(
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ControlStyles.UserPaint |
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ControlStyles.AllPaintingInWmPaint |
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ControlStyles.Selectable |
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ControlStyles.ResizeRedraw |
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ControlStyles.OptimizedDoubleBuffer |
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ControlStyles.SupportsTransparentBackColor,
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true
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);
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UpdateStyles();
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base.BackColor = Color.Transparent;
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base.Font = MetroFonts.Light(10);
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_utl = new Utilites();
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ApplyTheme();
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SetDefaults();
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}
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private void SetDefaults()
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{
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SelectedIndex = -1;
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_hoveredItem = -1;
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_showScrollBar = false;
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Items = new MetroItemCollection();
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Items.ItemUpdated += InvalidateScroll;
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SelectedItems = new List<object>();
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_indicates = new List<object>();
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ItemHeight = 30;
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_multiKeyDown = false;
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_svs = new MetroScrollBar()
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{
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Orientation = ScrollOrientate.Vertical,
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Size = new(12, Height),
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Maximum = Items.Count * ItemHeight,
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SmallChange = 1,
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LargeChange = 5
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};
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_svs.Scroll += HandleScroll;
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_svs.MouseDown += VS_MouseDown;
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_svs.BackColor = Color.Transparent;
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if (!Controls.Contains(_svs))
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{
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Controls.Add(_svs);
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}
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}
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#endregion Constructors
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#region ApplyTheme
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private void ApplyTheme(Style style = Style.Light)
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{
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if (!IsDerivedStyle)
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{
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return;
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}
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switch (style)
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{
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case Style.Light:
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ForeColor = Color.Black;
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BackColor = Color.White;
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SelectedItemBackColor = Color.FromArgb(65, 177, 225);
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SelectedItemColor = Color.White;
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HoveredItemColor = Color.DimGray;
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HoveredItemBackColor = Color.LightGray;
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DisabledBackColor = Color.FromArgb(204, 204, 204);
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DisabledForeColor = Color.FromArgb(136, 136, 136);
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BorderColor = Color.LightGray;
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ThemeAuthor = "Taiizor";
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ThemeName = "MetroLight";
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UpdateProperties();
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break;
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case Style.Dark:
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ForeColor = Color.FromArgb(170, 170, 170);
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BackColor = Color.FromArgb(30, 30, 30);
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SelectedItemBackColor = Color.FromArgb(65, 177, 225);
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SelectedItemColor = Color.White;
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HoveredItemColor = Color.DimGray;
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HoveredItemBackColor = Color.LightGray;
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DisabledBackColor = Color.FromArgb(80, 80, 80);
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DisabledForeColor = Color.FromArgb(109, 109, 109);
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BorderColor = Color.FromArgb(64, 64, 64);
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ThemeAuthor = "Taiizor";
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ThemeName = "MetroDark";
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UpdateProperties();
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break;
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case Style.Custom:
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if (StyleManager != null)
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{
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foreach (KeyValuePair<string, object> varkey in StyleManager.ListBoxDictionary)
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{
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switch (varkey.Key)
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{
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case "ForeColor":
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ForeColor = _utl.HexColor((string)varkey.Value);
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break;
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case "BackColor":
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BackColor = _utl.HexColor((string)varkey.Value);
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break;
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case "DisabledBackColor":
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DisabledBackColor = _utl.HexColor((string)varkey.Value);
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break;
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case "DisabledForeColor":
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DisabledForeColor = _utl.HexColor((string)varkey.Value);
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break;
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case "HoveredItemBackColor":
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HoveredItemBackColor = _utl.HexColor((string)varkey.Value);
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break;
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case "HoveredItemColor":
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HoveredItemColor = _utl.HexColor((string)varkey.Value);
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break;
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case "SelectedItemBackColor":
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SelectedItemBackColor = _utl.HexColor((string)varkey.Value);
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break;
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case "SelectedItemColor":
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SelectedItemColor = _utl.HexColor((string)varkey.Value);
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break;
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case "BorderColor":
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BorderColor = _utl.HexColor((string)varkey.Value);
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break;
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default:
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return;
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}
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}
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}
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UpdateProperties();
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break;
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default:
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throw new ArgumentOutOfRangeException(nameof(style), style, null);
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}
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}
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private void UpdateProperties()
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{
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Invalidate();
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}
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#endregion ApplyTheme
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#region Draw Control
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protected override void OnPaint(PaintEventArgs e)
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{
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Graphics g = e.Graphics;
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g.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
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Rectangle mainRect = new(0, 0, Width - (ShowBorder ? 1 : 0), Height - (ShowBorder ? 1 : 0));
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using SolidBrush bg = new(Enabled ? BackColor : DisabledBackColor);
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using SolidBrush usic = new(Enabled ? ForeColor : DisabledForeColor);
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using SolidBrush sic = new(SelectedItemColor);
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using SolidBrush sibc = new(SelectedItemBackColor);
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using SolidBrush hic = new(HoveredItemColor);
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using SolidBrush hibc = new(HoveredItemBackColor);
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using StringFormat sf = new() { Alignment = StringAlignment.Near, LineAlignment = StringAlignment.Center };
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int firstItem = _svs.Value / ItemHeight < 0 ? 0 : _svs.Value / ItemHeight;
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int lastItem = (_svs.Value / ItemHeight) + (Height / ItemHeight) + 1 > Items.Count ? Items.Count : (_svs.Value / ItemHeight) + (Height / ItemHeight) + 1;
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g.FillRectangle(bg, mainRect);
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for (int i = firstItem; i < lastItem; i++)
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{
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string itemText = (string)Items[i];
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Rectangle rect = new(5, (i - firstItem) * ItemHeight, Width - 1, ItemHeight);
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g.DrawString(itemText, Font, usic, rect, sf);
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if (MultiSelect && _indicates.Count != 0)
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{
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if (i == _hoveredItem && !_indicates.Contains(i))
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{
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g.FillRectangle(hibc, rect);
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g.DrawString(itemText, Font, hic, rect, sf);
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}
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else if (_indicates.Contains(i))
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{
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g.FillRectangle(sibc, rect);
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g.DrawString(itemText, Font, sic, rect, sf);
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}
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}
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else
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{
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if (i == _hoveredItem && i != SelectedIndex)
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{
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g.FillRectangle(hibc, rect);
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g.DrawString(itemText, Font, hic, rect, sf);
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}
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else if (i == SelectedIndex)
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{
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g.FillRectangle(sibc, rect);
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g.DrawString(itemText, Font, sic, rect, sf);
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}
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}
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}
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if (ShowBorder)
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{
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g.DrawRectangle(Pens.LightGray, mainRect);
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}
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}
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#endregion Draw Control
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#region Properties
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[TypeConverter(typeof(CollectionConverter))]
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[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
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[Editor("System.Windows.Forms.Design.StringCollectionEditor, System.Design", "System.Drawing.Design.UITypeEditor, System.Drawing")]
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[Category("Metro"), Description("Gets the items of the ListBox.")]
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public MetroItemCollection Items { get; private set; }
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[Browsable(false)]
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[Category("Metro"), Description("Gets a collection containing the currently selected items in the ListBox.")]
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public List<object> SelectedItems { get; private set; }
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[Category("Metro"), Description("Gets or sets the height of an item in the ListBox.")]
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public int ItemHeight
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{
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get => _itemHeight;
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set
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{
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_itemHeight = value;
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Refresh();
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}
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}
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[Browsable(false), Category("Metro"), Description("Gets or sets the currently selected item in the ListBox.")]
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public object SelectedItem
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{
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get => _selectedItem;
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set
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{
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_selectedItem = value;
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Invalidate();
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}
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}
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[Browsable(false), Category("Metro"),
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Description("Gets or sets the currently selected Text in the ListBox.")]
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public string SelectedText
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{
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get => _selectedText;
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set
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{
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_selectedText = value;
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Invalidate();
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}
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}
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[Browsable(false), Category("Metro"), Description("Gets or sets the zero-based index of the currently selected item in a ListBox.")]
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public int SelectedIndex
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{
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get => _selectedIndex;
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set
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{
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_selectedIndex = value;
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Invalidate();
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}
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}
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[Browsable(true), Category("Metro"), Description("Gets or sets the value of the member property specified by the ValueMember property.")]
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public object SelectedValue
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{
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get => _selectedValue;
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set
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{
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_selectedValue = value;
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Invalidate();
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}
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}
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[Category("Metro"), Description("Gets or sets a value indicating whether the ListBox supports multiple rows.")]
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public bool MultiSelect
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{
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get => _multiSelect;
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set
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{
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_multiSelect = value;
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if (SelectedItems.Count > 1)
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{
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SelectedItems.RemoveRange(1, SelectedItems.Count - 1);
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}
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Invalidate();
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}
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}
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[Browsable(false)]
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public int Count => Items.Count;
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[Category("Metro"), Description("Gets or sets a value indicating whether the vertical scroll bar be shown or not.")]
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public bool ShowScrollBar
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{
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get => _showScrollBar;
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set
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{
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_showScrollBar = value;
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_svs.Visible = value;
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Invalidate();
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}
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}
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[Category("Metro"), Description("Gets or sets a value indicating whether the border shown or not.")]
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public bool ShowBorder
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{
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get => _showBorder;
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set
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{
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_showBorder = value;
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Refresh();
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}
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}
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[Category("Metro"), Description("Gets or sets backcolor used by the control.")]
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public override Color BackColor { get; set; }
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[Category("Metro"), Description("Gets or sets forecolor used by the control.")]
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public override Color ForeColor { get; set; }
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[Browsable(false)]
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[EditorBrowsable(EditorBrowsableState.Never)]
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public override string Text { get => base.Text; set => base.Text = value; }
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[Category("Metro"), Description("Gets or sets selected item used by the control.")]
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public Color SelectedItemColor
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{
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get => _selectedItemColor;
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set
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{
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_selectedItemColor = value;
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Refresh();
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}
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}
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[Category("Metro"), Description("Gets or sets selected item backcolor used by the control.")]
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public Color SelectedItemBackColor
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{
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get => _selectedItemBackColor;
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set
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{
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_selectedItemBackColor = value;
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Refresh();
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}
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}
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[Category("Metro"), Description("Gets or sets hovered item used by the control.")]
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public Color HoveredItemColor
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{
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get => _hoveredItemColor;
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set
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{
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_hoveredItemColor = value;
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Refresh();
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}
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}
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[Category("Metro"), Description("Gets or sets hovered item backcolor used by the control.")]
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public Color HoveredItemBackColor
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{
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get => _hoveredItemBackColor;
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set
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{
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_hoveredItemBackColor = value;
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Refresh();
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}
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}
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[Category("Metro"), Description("Gets or sets disabled forecolor used by the control.")]
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public Color DisabledForeColor
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{
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get => _disabledForeColor;
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set
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{
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_disabledForeColor = value;
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Refresh();
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}
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}
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[Category("Metro"), Description("Gets or sets disabled backcolor used by the control.")]
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public Color DisabledBackColor
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{
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get => _disabledBackColor;
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set
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{
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_disabledBackColor = value;
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Refresh();
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}
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}
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[Category("Metro"), Description("Gets or sets border color used by the control.")]
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public Color BorderColor
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{
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get => _borderColor;
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set
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{
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_borderColor = value;
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Refresh();
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}
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}
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[Category("Metro")]
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[Description("Gets or sets the whether this control reflect to parent(s) style. \n " +
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"Set it to false if you want the style of this control be independent. ")]
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public bool IsDerivedStyle
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{
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get => _isDerivedStyle;
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set
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{
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_isDerivedStyle = value;
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Refresh();
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}
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}
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#endregion Properties
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#region Methods
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public void AddItem(string newItem)
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{
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Items.Add(newItem);
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InvalidateScroll(this, null);
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}
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public void AddItems(string[] newItems)
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{
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foreach (string str in newItems)
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{
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AddItem(str);
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}
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InvalidateScroll(this, null);
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}
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public void RemoveItemAt(int index)
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{
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Items.RemoveAt(index);
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InvalidateScroll(this, null);
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}
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public void RemoveItem(string item)
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{
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Items.Remove(item);
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InvalidateScroll(this, null);
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}
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public int IndexOf(string value)
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{
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return Items.IndexOf(value);
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}
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public bool Contains(object item)
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{
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return Items.Contains(item.ToString());
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}
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public void RemoveItems(string[] itemsToRemove)
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{
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foreach (string item in itemsToRemove)
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{
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Items.Remove(item);
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}
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InvalidateScroll(this, null);
|
}
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|
public void Clear()
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{
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for (int i = Items.Count - 1; i >= 0; i += -1)
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{
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Items.RemoveAt(i);
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}
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InvalidateScroll(this, null);
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}
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#endregion Methods
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#region Events
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|
public event SelectedIndexChangedEventHandler SelectedIndexChanged;
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public delegate void SelectedIndexChangedEventHandler(object sender);
|
|
public event SelectedValueEventHandler SelectedValueChanged;
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|
public delegate void SelectedValueEventHandler(object sender);
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protected override void OnSizeChanged(EventArgs e)
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{
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InvalidateScroll(this, e);
|
InvalidateLayout();
|
base.OnSizeChanged(e);
|
}
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|
protected override void OnMouseDown(MouseEventArgs e)
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{
|
Focus();
|
if (e.Button == MouseButtons.Left)
|
{
|
int index = (_svs.Value / ItemHeight) + (e.Location.Y / ItemHeight);
|
if (index >= 0 && index < Items.Count)
|
{
|
if (MultiSelect && _multiKeyDown)
|
{
|
_indicates.Add(index);
|
SelectedItems.Add(Items[index]);
|
}
|
else
|
{
|
_indicates.Clear();
|
SelectedItems.Clear();
|
_selectedItem = Items[index];
|
_selectedIndex = index;
|
_selectedValue = Items[index];
|
_selectedText = Items[index].ToString();
|
SelectedIndexChanged?.Invoke(this);
|
SelectedValueChanged?.Invoke(this);
|
}
|
}
|
Invalidate();
|
}
|
base.OnMouseDown(e);
|
}
|
|
private void HandleScroll(object sender)
|
{
|
Invalidate();
|
}
|
|
private void InvalidateScroll(object sender, EventArgs e)
|
{
|
_svs.Maximum = Items.Count * ItemHeight;
|
Invalidate();
|
}
|
|
private void VS_MouseDown(object sender, MouseEventArgs e)
|
{
|
Focus();
|
}
|
|
private void InvalidateLayout()
|
{
|
_svs.Size = new(12, Height - (ShowBorder ? 2 : 0));
|
_svs.Location = new(Width - (_svs.Width + (ShowBorder ? 2 : 0)), ShowBorder ? 1 : 0);
|
Invalidate();
|
}
|
|
protected override void OnMouseWheel(MouseEventArgs e)
|
{
|
_svs.Value -= e.Delta / 4;
|
base.OnMouseWheel(e);
|
}
|
|
protected override bool IsInputKey(Keys keyData)
|
{
|
switch (keyData)
|
{
|
case Keys.Down:
|
try
|
{
|
SelectedItems.Remove(Items[SelectedIndex]);
|
SelectedIndex += 1;
|
SelectedItems.Add(Items[SelectedIndex]);
|
}
|
catch
|
{
|
//
|
}
|
break;
|
|
case Keys.Up:
|
try
|
{
|
SelectedItems.Remove(Items[SelectedIndex]);
|
SelectedIndex -= 1;
|
SelectedItems.Add(Items[SelectedIndex]);
|
}
|
catch
|
{
|
//
|
}
|
break;
|
}
|
Invalidate();
|
return base.IsInputKey(keyData);
|
}
|
|
protected override void OnMouseMove(MouseEventArgs e)
|
{
|
base.OnMouseMove(e);
|
Cursor = Cursors.Hand;
|
int index = (_svs.Value / ItemHeight) + (e.Location.Y / ItemHeight);
|
|
if (index >= Items.Count)
|
{
|
index = -1;
|
}
|
|
if (index >= 0 && index < Items.Count)
|
{
|
_hoveredItem = index;
|
}
|
|
Invalidate();
|
}
|
|
protected override void OnMouseLeave(EventArgs e)
|
{
|
_hoveredItem = -1;
|
Cursor = Cursors.Default;
|
Invalidate();
|
base.OnMouseLeave(e);
|
}
|
|
protected override void OnHandleCreated(EventArgs e)
|
{
|
base.OnHandleCreated(e);
|
_svs.Location = new(Width - (_svs.Width + (ShowBorder ? 2 : 0)), ShowBorder ? 1 : 0);
|
InvalidateScroll(this, e);
|
}
|
|
protected override void WndProc(ref Message m)
|
{
|
if (m.Msg == User32.WM_SETCURSOR)
|
{
|
User32.SetCursor(User32.LoadCursor(IntPtr.Zero, User32.IDC_HAND));
|
m.Result = IntPtr.Zero;
|
return;
|
}
|
base.WndProc(ref m);
|
}
|
|
#endregion Events
|
|
}
|
|
#endregion
|
}
|
