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https://github.com/jkocon/g-helper.git
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Dark Theme
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seerge
290
app/CustomControls.cs
Normal file
290
app/CustomControls.cs
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@@ -0,0 +1,290 @@
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using System.ComponentModel;
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using System.Drawing.Drawing2D;
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using System.Runtime.InteropServices;
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namespace CustomControls
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{
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public class RForm : Form
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{
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protected static Color colorEco = Color.FromArgb(255, 6, 180, 138);
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protected static Color colorStandard = Color.FromArgb(255, 58, 174, 239);
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protected static Color colorTurbo = Color.FromArgb(255, 255, 32, 32);
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[DllImport("UXTheme.dll", SetLastError = true, EntryPoint = "#138")]
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public static extern bool CheckSystemDarkModeStatus();
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public static bool darkTheme = CheckSystemDarkModeStatus();
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[DllImport("DwmApi")] //System.Runtime.InteropServices
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private static extern int DwmSetWindowAttribute(IntPtr hwnd, int attr, int[] attrValue, int attrSize);
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protected override void OnHandleCreated(EventArgs e)
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{
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if (darkTheme && DwmSetWindowAttribute(Handle, 19, new[] { 1 }, 4) != 0)
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DwmSetWindowAttribute(Handle, 20, new[] { 1 }, 4);
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}
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}
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public class RComboBox : ComboBox
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{
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private Color borderColor = Color.Gray;
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[DefaultValue(typeof(Color), "Gray")]
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public Color BorderColor
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{
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get { return borderColor; }
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set
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{
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if (borderColor != value)
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{
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borderColor = value;
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Invalidate();
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}
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}
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}
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private Color buttonColor = Color.LightGray;
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[DefaultValue(typeof(Color), "LightGray")]
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public Color ButtonColor
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{
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get { return buttonColor; }
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set
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{
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if (buttonColor != value)
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{
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buttonColor = value;
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Invalidate();
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}
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}
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}
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private Color arrowColor = Color.Gray;
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[DefaultValue(typeof(Color), "Gray")]
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public Color ArrowColor
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{
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get { return arrowColor; }
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set
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{
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if (arrowColor != value)
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{
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arrowColor = value;
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Invalidate();
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}
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}
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}
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protected override void WndProc(ref Message m)
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{
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if (m.Msg == WM_PAINT && DropDownStyle != ComboBoxStyle.Simple)
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{
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var clientRect = ClientRectangle;
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var dropDownButtonWidth = SystemInformation.HorizontalScrollBarArrowWidth;
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var outerBorder = new Rectangle(clientRect.Location,
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new Size(clientRect.Width - 1, clientRect.Height - 1));
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var innerBorder = new Rectangle(outerBorder.X + 1, outerBorder.Y + 1,
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outerBorder.Width - dropDownButtonWidth - 2, outerBorder.Height - 2);
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var innerInnerBorder = new Rectangle(innerBorder.X + 1, innerBorder.Y + 1,
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innerBorder.Width - 2, innerBorder.Height - 2);
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var dropDownRect = new Rectangle(innerBorder.Right + 1, innerBorder.Y,
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dropDownButtonWidth, innerBorder.Height + 1);
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if (RightToLeft == RightToLeft.Yes)
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{
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innerBorder.X = clientRect.Width - innerBorder.Right;
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innerInnerBorder.X = clientRect.Width - innerInnerBorder.Right;
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dropDownRect.X = clientRect.Width - dropDownRect.Right;
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dropDownRect.Width += 1;
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}
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var innerBorderColor = Enabled ? BackColor : SystemColors.Control;
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var outerBorderColor = Enabled ? BorderColor : SystemColors.ControlDark;
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var buttonColor = Enabled ? ButtonColor : SystemColors.Control;
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var middle = new Point(dropDownRect.Left + dropDownRect.Width / 2,
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dropDownRect.Top + dropDownRect.Height / 2);
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var arrow = new Point[]
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{
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new Point(middle.X - 3, middle.Y - 2),
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new Point(middle.X + 4, middle.Y - 2),
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new Point(middle.X, middle.Y + 2)
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};
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var ps = new PAINTSTRUCT();
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bool shoulEndPaint = false;
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IntPtr dc;
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if (m.WParam == IntPtr.Zero)
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{
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dc = BeginPaint(Handle, ref ps);
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m.WParam = dc;
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shoulEndPaint = true;
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}
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else
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{
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dc = m.WParam;
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}
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var rgn = CreateRectRgn(innerInnerBorder.Left, innerInnerBorder.Top,
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innerInnerBorder.Right, innerInnerBorder.Bottom);
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SelectClipRgn(dc, rgn);
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DefWndProc(ref m);
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DeleteObject(rgn);
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rgn = CreateRectRgn(clientRect.Left, clientRect.Top,
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clientRect.Right, clientRect.Bottom);
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SelectClipRgn(dc, rgn);
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using (var g = Graphics.FromHdc(dc))
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{
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using (var b = new SolidBrush(buttonColor))
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{
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g.FillRectangle(b, dropDownRect);
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}
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using (var b = new SolidBrush(arrowColor))
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{
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g.FillPolygon(b, arrow);
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}
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using (var p = new Pen(innerBorderColor))
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{
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g.DrawRectangle(p, innerBorder);
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g.DrawRectangle(p, innerInnerBorder);
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}
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using (var p = new Pen(outerBorderColor))
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{
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g.DrawRectangle(p, outerBorder);
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}
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}
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if (shoulEndPaint)
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EndPaint(Handle, ref ps);
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DeleteObject(rgn);
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}
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else
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base.WndProc(ref m);
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}
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private const int WM_PAINT = 0xF;
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[StructLayout(LayoutKind.Sequential)]
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public struct RECT
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{
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public int L, T, R, B;
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}
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[StructLayout(LayoutKind.Sequential)]
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public struct PAINTSTRUCT
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{
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public IntPtr hdc;
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public bool fErase;
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public int rcPaint_left;
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public int rcPaint_top;
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public int rcPaint_right;
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public int rcPaint_bottom;
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public bool fRestore;
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public bool fIncUpdate;
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public int reserved1;
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public int reserved2;
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public int reserved3;
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public int reserved4;
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public int reserved5;
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public int reserved6;
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public int reserved7;
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public int reserved8;
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}
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[DllImport("user32.dll")]
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private static extern IntPtr BeginPaint(IntPtr hWnd,
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[In, Out] ref PAINTSTRUCT lpPaint);
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[DllImport("user32.dll")]
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private static extern bool EndPaint(IntPtr hWnd, ref PAINTSTRUCT lpPaint);
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[DllImport("gdi32.dll")]
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public static extern int SelectClipRgn(IntPtr hDC, IntPtr hRgn);
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[DllImport("user32.dll")]
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public static extern int GetUpdateRgn(IntPtr hwnd, IntPtr hrgn, bool fErase);
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public enum RegionFlags
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{
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ERROR = 0,
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NULLREGION = 1,
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SIMPLEREGION = 2,
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COMPLEXREGION = 3,
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}
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[DllImport("gdi32.dll")]
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internal static extern bool DeleteObject(IntPtr hObject);
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[DllImport("gdi32.dll")]
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private static extern IntPtr CreateRectRgn(int x1, int y1, int x2, int y2);
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}
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public class RButton : Button
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{
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//Fields
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private int borderSize = 5;
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private int borderRadius = 3;
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private bool activated = false;
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private Color borderColor = Color.Transparent;
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public Color BorderColor
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{
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get { return borderColor; }
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set
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{
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borderColor = value;
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}
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}
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public bool Activated
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{
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get { return activated; }
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set
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{
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if (activated != value)
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this.Invalidate();
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activated = value;
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}
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}
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public RButton()
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{
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this.FlatStyle = FlatStyle.Flat;
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this.FlatAppearance.BorderSize = 0;
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}
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private GraphicsPath GetFigurePath(Rectangle rect, int radius)
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{
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GraphicsPath path = new GraphicsPath();
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float curveSize = radius * 2F;
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path.StartFigure();
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path.AddArc(rect.X, rect.Y, curveSize, curveSize, 180, 90);
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path.AddArc(rect.Right - curveSize, rect.Y, curveSize, curveSize, 270, 90);
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path.AddArc(rect.Right - curveSize, rect.Bottom - curveSize, curveSize, curveSize, 0, 90);
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path.AddArc(rect.X, rect.Bottom - curveSize, curveSize, curveSize, 90, 90);
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path.CloseFigure();
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return path;
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}
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protected override void OnPaint(PaintEventArgs pevent)
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{
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base.OnPaint(pevent);
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float ratio = pevent.Graphics.DpiX / 192.0f;
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int border = (int)(ratio * borderSize);
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Rectangle rectSurface = this.ClientRectangle;
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Rectangle rectBorder = Rectangle.Inflate(rectSurface, -border, -border);
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Color borderDrawColor = activated ? borderColor : Color.Transparent;
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using (GraphicsPath pathSurface = GetFigurePath(rectSurface, borderRadius + border))
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using (GraphicsPath pathBorder = GetFigurePath(rectBorder, borderRadius))
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using (Pen penSurface = new Pen(this.Parent.BackColor, border))
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using (Pen penBorder = new Pen(borderDrawColor, border))
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{
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penBorder.Alignment = PenAlignment.Outset;
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pevent.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
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this.Region = new Region(pathSurface);
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pevent.Graphics.DrawPath(penSurface, pathSurface);
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pevent.Graphics.DrawPath(penBorder, pathBorder);
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}
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}
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}
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}
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