raton4.0-source/Raton RAT/DarkModeForms/FlatComboBox.cs

// Decompiled with JetBrains decompiler
// Type: DarkModeForms.FlatComboBox
// Assembly: Raton, Version=0.4.0.0, Culture=neutral, PublicKeyToken=null
// MVID: 36C4E416-7F8D-4D23-930F-B5CCB0D810E7
// Assembly location: C:\Users\user\Desktop\v3.8.0 Deluxe Plugins (v4.0.0) cracked\Raton.exe

using System;
using System.ComponentModel;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Runtime.InteropServices;
using System.Windows.Forms;

#nullable disable
namespace DarkModeForms;

public class FlatComboBox : ComboBox
{
  private Color borderColor = Color.Gray;
  private Color buttonColor = Color.LightGray;
  private const int WM_PAINT = 15;

  [DefaultValue(typeof (Color), "Gray")]
  public Color BorderColor
  {
    get => this.borderColor;
    set
    {
      if (!(this.borderColor != value))
        return;
      this.borderColor = value;
      this.Invalidate();
    }
  }

  [DefaultValue(typeof (Color), "LightGray")]
  public Color ButtonColor
  {
    get => this.buttonColor;
    set
    {
      if (!(this.buttonColor != value))
        return;
      this.buttonColor = value;
      this.Invalidate();
    }
  }

  protected override void WndProc(ref Message m)
  {
    if (m.Msg == 15 && this.DropDownStyle != ComboBoxStyle.Simple)
    {
      Rectangle clientRectangle = this.ClientRectangle;
      int scrollBarArrowWidth = SystemInformation.HorizontalScrollBarArrowWidth;
      Rectangle rect1 = new Rectangle(clientRectangle.Location, new Size(clientRectangle.Width - 1, clientRectangle.Height - 1));
      Rectangle rect2 = new Rectangle(rect1.X + 1, rect1.Y + 1, rect1.Width - scrollBarArrowWidth - 2, rect1.Height - 2);
      Rectangle rect3 = new Rectangle(rect2.X + 1, rect2.Y + 1, rect2.Width - 2, rect2.Height - 2);
      Rectangle rect4 = new Rectangle(rect2.Right + 1, rect2.Y - 1, scrollBarArrowWidth, rect2.Height + 2);
      if (this.RightToLeft == RightToLeft.Yes)
      {
        rect2.X = clientRectangle.Width - rect2.Right;
        rect3.X = clientRectangle.Width - rect3.Right;
        rect4.X = clientRectangle.Width - rect4.Right;
        ++rect4.Width;
      }
      Color color1 = this.Enabled ? this.BackColor : SystemColors.Control;
      Color color2 = this.Enabled ? this.BorderColor : SystemColors.ControlDark;
      Color color3 = this.Enabled ? this.ButtonColor : SystemColors.Control;
      Point point = new Point(rect4.Left + rect4.Width / 2, rect4.Top + rect4.Height / 2);
      Point[] pointArray1 = new Point[3]
      {
        new Point(point.X - 3, point.Y - 2),
        new Point(point.X + 4, point.Y - 2),
        new Point(point.X, point.Y + 2)
      };
      FlatComboBox.PAINTSTRUCT lpPaint = new FlatComboBox.PAINTSTRUCT();
      bool flag = false;
      IntPtr num;
      if (m.WParam == IntPtr.Zero)
      {
        num = FlatComboBox.BeginPaint(this.Handle, ref lpPaint);
        m.WParam = num;
        flag = true;
      }
      else
        num = m.WParam;
      IntPtr rectRgn1 = FlatComboBox.CreateRectRgn(rect3.Left, rect3.Top, rect3.Right, rect3.Bottom);
      FlatComboBox.SelectClipRgn(num, rectRgn1);
      this.DefWndProc(ref m);
      FlatComboBox.DeleteObject(rectRgn1);
      IntPtr rectRgn2 = FlatComboBox.CreateRectRgn(clientRectangle.Left, clientRectangle.Top, clientRectangle.Right, clientRectangle.Bottom);
      FlatComboBox.SelectClipRgn(num, rectRgn2);
      using (Graphics graphics = Graphics.FromHdc(num))
      {
        graphics.InterpolationMode = InterpolationMode.HighQualityBilinear;
        graphics.CompositingQuality = CompositingQuality.HighQuality;
        graphics.SmoothingMode = SmoothingMode.AntiAlias;
        using (SolidBrush solidBrush = new SolidBrush(color3))
          graphics.FillRectangle((Brush) solidBrush, rect4);
        Size size = new Size(8, 4);
        Point[] pointArray2 = new Point[3]
        {
          new Point(point.X - size.Width / 2, point.Y - size.Height / 2),
          new Point(point.X + size.Width / 2, point.Y - size.Height / 2),
          new Point(point.X, point.Y + size.Height / 2)
        };
        using (Pen pen = new Pen(this.BorderColor, 2.5f))
        {
          graphics.DrawLine(pen, pointArray2[0], pointArray2[2]);
          graphics.DrawLine(pen, pointArray2[1], pointArray2[2]);
        }
        using (Pen pen = new Pen(color1))
        {
          graphics.DrawRectangle(pen, rect2);
          graphics.DrawRectangle(pen, rect3);
        }
        using (Pen pen = new Pen(color2))
          graphics.DrawRectangle(pen, rect1);
      }
      if (flag)
        FlatComboBox.EndPaint(this.Handle, ref lpPaint);
      FlatComboBox.DeleteObject(rectRgn2);
    }
    else
      base.WndProc(ref m);
  }

  [DllImport("user32.dll")]
  private static extern IntPtr BeginPaint(IntPtr hWnd, [In, Out] ref FlatComboBox.PAINTSTRUCT lpPaint);

  [DllImport("user32.dll")]
  private static extern bool EndPaint(IntPtr hWnd, ref FlatComboBox.PAINTSTRUCT lpPaint);

  [DllImport("gdi32.dll")]
  public static extern int SelectClipRgn(IntPtr hDC, IntPtr hRgn);

  [DllImport("user32.dll")]
  public static extern int GetUpdateRgn(IntPtr hwnd, IntPtr hrgn, bool fErase);

  [DllImport("gdi32.dll")]
  internal static extern bool DeleteObject(IntPtr hObject);

  [DllImport("gdi32.dll")]
  private static extern IntPtr CreateRectRgn(int x1, int y1, int x2, int y2);

  public struct RECT
  {
    public int L;
    public int T;
    public int R;
    public int B;
  }

  public struct PAINTSTRUCT
  {
    public IntPtr hdc;
    public bool fErase;
    public int rcPaint_left;
    public int rcPaint_top;
    public int rcPaint_right;
    public int rcPaint_bottom;
    public bool fRestore;
    public bool fIncUpdate;
    public int reserved1;
    public int reserved2;
    public int reserved3;
    public int reserved4;
    public int reserved5;
    public int reserved6;
    public int reserved7;
    public int reserved8;
  }

  public enum RegionFlags
  {
    ERROR,
    NULLREGION,
    SIMPLEREGION,
    COMPLEXREGION,
  }
}