370 lines
14 KiB
C#
370 lines
14 KiB
C#
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using Pulsar.Server.Models;
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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.Drawing2D;
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using System.Windows.Forms;
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// thanks to Mavamaarten~ for coding this
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namespace Pulsar.Server.Controls
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{
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public class TabPageEventArgs : EventArgs
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{
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public TabPage TabPage { get; }
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public TabPageEventArgs(TabPage tabPage)
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{
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TabPage = tabPage;
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}
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}
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internal class DotNetBarTabControl : TabControl
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{
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private bool _darkMode = Settings.DarkMode;
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private Dictionary<int, Rectangle> _closeButtonRects = new Dictionary<int, Rectangle>();
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private bool _showCloseButtons = true;
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public event EventHandler<TabPageEventArgs> TabClosed;
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/// <summary>
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/// Gets or sets whether close buttons are shown on tabs.
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/// </summary>
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[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
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public bool ShowCloseButtons
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{
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get { return _showCloseButtons; }
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set
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{
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if (_showCloseButtons != value)
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{
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_showCloseButtons = value;
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Invalidate();
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}
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}
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}
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public DotNetBarTabControl()
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{
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SetStyle(
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ControlStyles.AllPaintingInWmPaint | ControlStyles.ResizeRedraw | ControlStyles.UserPaint |
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ControlStyles.DoubleBuffer, true);
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SizeMode = TabSizeMode.Fixed;
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SelectedIndex = 0;
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ShowCloseButtons = false;
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MouseClick += DotNetBarTabControl_MouseClick;
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}
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private void DotNetBarTabControl_MouseClick(object sender, MouseEventArgs e)
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{
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if (!_showCloseButtons)
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return;
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foreach (var kvp in _closeButtonRects)
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{
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if (kvp.Value.Contains(e.Location))
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{
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int tabIndex = kvp.Key;
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if (tabIndex >= 0 && tabIndex < TabCount)
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{
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TabPage tabPage = TabPages[tabIndex];
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TabPages.Remove(tabPage);
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TabClosed?.Invoke(this, new TabPageEventArgs(tabPage));
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Invalidate();
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}
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break;
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}
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}
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}
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private void DrawTabText(Graphics g, Rectangle rect, string text, Font baseFont, Brush textBrush, bool isSelected)
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{
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int maxTextWidth = rect.Width - 20;
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if (_showCloseButtons)
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maxTextWidth -= 20;
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SizeF textSize = g.MeasureString(text, baseFont);
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Font fontToUse = baseFont;
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float scaleFactor = 1.0f;
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if (textSize.Width > maxTextWidth)
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{
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scaleFactor = maxTextWidth / textSize.Width;
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float newSize = Math.Max(baseFont.Size * scaleFactor, 7.0f);
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fontToUse = new Font(baseFont.FontFamily, newSize, isSelected ? FontStyle.Bold : FontStyle.Regular);
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}
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else if (isSelected && baseFont.Style != FontStyle.Bold)
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{
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fontToUse = new Font(baseFont.FontFamily, baseFont.Size, FontStyle.Bold);
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}
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g.DrawString(text, fontToUse, textBrush, rect, new StringFormat
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{
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LineAlignment = StringAlignment.Center,
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Alignment = StringAlignment.Center,
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Trimming = StringTrimming.EllipsisCharacter
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});
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if (fontToUse != baseFont)
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{
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fontToUse.Dispose();
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}
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}
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private void DrawCloseButton(Graphics g, Rectangle tabRect, int tabIndex, bool isSelected)
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{
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if (!_showCloseButtons)
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return;
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int buttonSize = 16;
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int buttonX = tabRect.Right - buttonSize - 5;
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int buttonY = tabRect.Top + (tabRect.Height - buttonSize) / 2;
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Rectangle closeRect = new Rectangle(buttonX, buttonY, buttonSize, buttonSize);
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_closeButtonRects[tabIndex] = closeRect;
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Color bgColor = _darkMode
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? (isSelected ? Color.FromArgb(90, 90, 90) : Color.FromArgb(60, 60, 60))
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: (isSelected ? Color.FromArgb(240, 240, 250) : Color.FromArgb(220, 220, 240));
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using (SolidBrush bgBrush = new SolidBrush(bgColor))
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{
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g.FillEllipse(bgBrush, closeRect);
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}
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Color xColor = _darkMode
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? Color.FromArgb(200, 200, 200)
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: Color.FromArgb(100, 100, 100);
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using (Pen xPen = new Pen(xColor, 1.5f))
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{
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g.DrawLine(xPen,
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closeRect.Left + 4, closeRect.Top + 4,
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closeRect.Right - 4, closeRect.Bottom - 4);
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g.DrawLine(xPen,
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closeRect.Left + 4, closeRect.Bottom - 4,
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closeRect.Right - 4, closeRect.Top + 4);
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}
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}
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protected override void OnPaint(PaintEventArgs e)
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{
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_closeButtonRects.Clear();
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Bitmap b = new Bitmap(Width, Height);
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Graphics g = Graphics.FromImage(b);
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g.SmoothingMode = SmoothingMode.AntiAlias;
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g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
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if (_darkMode)
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{
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DrawDarkMode(g);
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}
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else
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{
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DrawLightMode(g);
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}
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e.Graphics.DrawImage(b, new Point(0, 0));
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g.Dispose();
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b.Dispose();
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}
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private void DrawDarkMode(Graphics g)
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{
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if (!DesignMode && TabCount > 0 && SelectedIndex >= 0)
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SelectedTab.BackColor = Color.FromArgb(43, 43, 43);
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g.Clear(Color.FromArgb(43, 43, 43));
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g.FillRectangle(new SolidBrush(Color.FromArgb(43, 43, 43)),
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new Rectangle(0, 0, ItemSize.Height + 4, Height));
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g.DrawLine(new Pen(Color.FromArgb(80, 80, 80)), new Point(ItemSize.Height + 3, 0),
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new Point(ItemSize.Height + 3, 999));
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g.DrawLine(new Pen(Color.FromArgb(80, 80, 80)), new Point(0, Size.Height - 1),
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new Point(Width + 3, Size.Height - 1));
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for (int i = 0; i <= TabCount - 1; i++)
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{
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if (i == SelectedIndex)
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{
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Rectangle x2 = new Rectangle(new Point(GetTabRect(i).Location.X - 2, GetTabRect(i).Location.Y - 2),
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new Size(GetTabRect(i).Width + 3, GetTabRect(i).Height - 1));
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g.FillRectangle(new SolidBrush(Color.FromArgb(70, 70, 70)), x2);
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g.DrawRectangle(new Pen(Color.FromArgb(43, 43, 43)), x2);
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g.SmoothingMode = SmoothingMode.HighQuality;
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if (ImageList != null)
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{
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try
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{
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g.DrawImage(ImageList.Images[TabPages[i].ImageIndex],
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new Point(x2.Location.X + 8, x2.Location.Y + 6));
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DrawTabText(g, x2, TabPages[i].Text, Font, Brushes.White, true);
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}
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catch (Exception)
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{
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DrawTabText(g, x2, TabPages[i].Text, Font, Brushes.White, true);
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}
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}
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else
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{
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DrawTabText(g, x2, TabPages[i].Text, Font, Brushes.White, true);
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}
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DrawCloseButton(g, x2, i, true);
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}
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else
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{
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Rectangle x2 = new Rectangle(new Point(GetTabRect(i).Location.X - 2, GetTabRect(i).Location.Y - 2),
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new Size(GetTabRect(i).Width + 3, GetTabRect(i).Height - 1));
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g.FillRectangle(new SolidBrush(Color.FromArgb(43, 43, 43)), x2);
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g.DrawLine(new Pen(Color.FromArgb(80, 80, 80)), new Point(x2.Right, x2.Top),
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new Point(x2.Right, x2.Bottom));
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if (ImageList != null)
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{
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try
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{
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g.DrawImage(ImageList.Images[TabPages[i].ImageIndex],
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new Point(x2.Location.X + 8, x2.Location.Y + 6));
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DrawTabText(g, x2, TabPages[i].Text, Font, Brushes.LightGray, false);
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}
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catch (Exception)
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{
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DrawTabText(g, x2, TabPages[i].Text, Font, Brushes.LightGray, false);
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}
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}
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else
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{
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DrawTabText(g, x2, TabPages[i].Text, Font, Brushes.LightGray, false);
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}
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DrawCloseButton(g, x2, i, false);
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}
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}
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}
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private void DrawLightMode(Graphics g)
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{
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if (!DesignMode && TabCount > 0 && SelectedIndex >= 0)
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SelectedTab.BackColor = SystemColors.Control;
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g.Clear(SystemColors.Control);
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g.FillRectangle(new SolidBrush(Color.FromArgb(246, 248, 252)),
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new Rectangle(0, 0, ItemSize.Height + 4, Height));
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g.DrawLine(new Pen(Color.FromArgb(170, 187, 204)), new Point(ItemSize.Height + 3, 0),
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new Point(ItemSize.Height + 3, 999));
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g.DrawLine(new Pen(Color.FromArgb(170, 187, 204)), new Point(0, Size.Height - 1),
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new Point(Width + 3, Size.Height - 1));
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for (int i = 0; i <= TabCount - 1; i++)
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{
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if (i == SelectedIndex)
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{
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Rectangle x2 = new Rectangle(new Point(GetTabRect(i).Location.X - 2, GetTabRect(i).Location.Y - 2),
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new Size(GetTabRect(i).Width + 3, GetTabRect(i).Height - 1));
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ColorBlend myBlend = new ColorBlend();
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myBlend.Colors = new Color[] { Color.FromArgb(232, 232, 240), Color.FromArgb(232, 232, 240), Color.FromArgb(232, 232, 240) };
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myBlend.Positions = new float[] { 0f, 0.5f, 1f };
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LinearGradientBrush lgBrush = new LinearGradientBrush(x2, Color.Black, Color.Black, 90f);
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lgBrush.InterpolationColors = myBlend;
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g.FillRectangle(lgBrush, x2);
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g.DrawRectangle(new Pen(Color.FromArgb(170, 187, 204)), x2);
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g.SmoothingMode = SmoothingMode.HighQuality;
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Point[] p =
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{
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new Point(ItemSize.Height - 3, GetTabRect(i).Location.Y + 20),
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new Point(ItemSize.Height + 4, GetTabRect(i).Location.Y + 14),
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new Point(ItemSize.Height + 4, GetTabRect(i).Location.Y + 27)
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};
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g.FillPolygon(SystemBrushes.Control, p);
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g.DrawPolygon(new Pen(Color.FromArgb(170, 187, 204)), p);
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if (ImageList != null)
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{
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try
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{
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g.DrawImage(ImageList.Images[TabPages[i].ImageIndex],
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new Point(x2.Location.X + 8, x2.Location.Y + 6));
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DrawTabText(g, x2, TabPages[i].Text, Font, Brushes.Black, true);
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}
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catch (Exception)
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{
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DrawTabText(g, x2, TabPages[i].Text, Font, Brushes.Black, true);
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}
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}
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else
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{
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DrawTabText(g, x2, TabPages[i].Text, Font, Brushes.Black, true);
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}
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g.DrawLine(new Pen(Color.FromArgb(200, 200, 250)), new Point(x2.Location.X - 1, x2.Location.Y - 1),
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new Point(x2.Location.X, x2.Location.Y));
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g.DrawLine(new Pen(Color.FromArgb(200, 200, 250)), new Point(x2.Location.X - 1, x2.Bottom - 1),
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new Point(x2.Location.X, x2.Bottom));
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DrawCloseButton(g, x2, i, true);
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}
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else
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{
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Rectangle x2 = new Rectangle(new Point(GetTabRect(i).Location.X - 2, GetTabRect(i).Location.Y - 2),
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new Size(GetTabRect(i).Width + 3, GetTabRect(i).Height - 1));
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g.FillRectangle(new SolidBrush(Color.FromArgb(246, 248, 252)), x2);
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g.DrawLine(new Pen(Color.FromArgb(170, 187, 204)), new Point(x2.Right, x2.Top),
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new Point(x2.Right, x2.Bottom));
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if (ImageList != null)
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{
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try
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{
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g.DrawImage(ImageList.Images[TabPages[i].ImageIndex],
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new Point(x2.Location.X + 8, x2.Location.Y + 6));
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DrawTabText(g, x2, TabPages[i].Text, Font, Brushes.DimGray, false);
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}
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catch (Exception)
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{
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DrawTabText(g, x2, TabPages[i].Text, Font, Brushes.DimGray, false);
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}
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}
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else
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{
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DrawTabText(g, x2, TabPages[i].Text, Font, Brushes.DimGray, false);
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}
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DrawCloseButton(g, x2, i, false);
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}
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}
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}
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}
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}
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