#region Imports
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using System;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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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 ComboBoxEdit
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public class ComboBoxEdit : ComboBox
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{
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#region Variables
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private int _StartIndex = 0;
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private Color _HoverSelectionColor = Color.FromArgb(241, 241, 241);
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#endregion
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#region Custom Properties
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public int StartIndex
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{
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get => _StartIndex;
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set
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{
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_StartIndex = value;
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try
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{
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base.SelectedIndex = value;
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}
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catch
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{
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}
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Invalidate();
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}
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}
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public Color HoverSelectionColor
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{
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get => _HoverSelectionColor;
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set
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{
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_HoverSelectionColor = value;
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Invalidate();
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}
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}
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#endregion
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#region EventArgs
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protected override void OnDrawItem(DrawItemEventArgs e)
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{
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if ((e.State & DrawItemState.Selected) == DrawItemState.Selected)
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{
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e.Graphics.FillRectangle(new SolidBrush(_HoverSelectionColor), e.Bounds);
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}
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else
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{
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e.Graphics.FillRectangle(Brushes.White, e.Bounds);
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}
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if (!(e.Index == -1))
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{
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e.Graphics.DrawString(GetItemText(Items[e.Index]), e.Font, Brushes.DimGray, e.Bounds);
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}
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}
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protected override void OnLostFocus(EventArgs e)
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{
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base.OnLostFocus(e);
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SuspendLayout();
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Update();
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ResumeLayout();
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}
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protected override void OnPaintBackground(PaintEventArgs e)
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{
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base.OnPaintBackground(e);
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}
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#endregion
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public ComboBoxEdit()
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{
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SetStyle((ControlStyles)139286, true);
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SetStyle(ControlStyles.Selectable, false);
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DrawMode = DrawMode.OwnerDrawFixed;
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DropDownStyle = ComboBoxStyle.DropDownList;
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Cursor = Cursors.Hand;
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BackColor = Color.FromArgb(246, 246, 246);
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ForeColor = Color.FromArgb(142, 142, 142);
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Size = new(135, 26);
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ItemHeight = 20;
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DropDownHeight = 100;
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Font = new("Segoe UI", 10, FontStyle.Regular);
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DoubleBuffered = true;
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}
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protected override void OnPaint(PaintEventArgs e)
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{
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base.OnPaint(e);
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LinearGradientBrush LGB = default;
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GraphicsPath GP = default;
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e.Graphics.Clear(BackColor);
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e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
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// Create a curvy border
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GP = RoundRectangle.RoundRect(0, 0, Width - 1, Height - 1, 5);
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// Fills the body of the rectangle with a gradient
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LGB = new(ClientRectangle, Color.FromArgb(241, 241, 241), Color.FromArgb(241, 241, 241), 90f);
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e.Graphics.SetClip(GP);
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e.Graphics.FillRectangle(LGB, ClientRectangle);
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e.Graphics.ResetClip();
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// Draw rectangle border
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e.Graphics.DrawPath(new(Color.FromArgb(204, 204, 204)), GP);
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// Draw string
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e.Graphics.DrawString(Text, Font, new SolidBrush(ForeColor), new Rectangle(3, 0, Width - 20, Height), new StringFormat
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{
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LineAlignment = StringAlignment.Center,
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Alignment = StringAlignment.Near
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});
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// Draw the dropdown arrow
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e.Graphics.DrawLine(new(Color.FromArgb(160, 160, 160), 2), new Point(Width - 18, 10), new Point(Width - 14, 14));
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e.Graphics.DrawLine(new(Color.FromArgb(160, 160, 160), 2), new Point(Width - 14, 14), new Point(Width - 10, 10));
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e.Graphics.DrawLine(new(Color.FromArgb(160, 160, 160)), new Point(Width - 14, 15), new Point(Width - 14, 14));
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GP.Dispose();
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LGB.Dispose();
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}
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}
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#endregion
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}
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