139 lines
4.0 KiB
C#
139 lines
4.0 KiB
C#
// Mozilla Public License 2.0
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// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// Copyright (C) LibreHardwareMonitor and Contributors
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// All Rights Reserved
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using System;
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using System.Drawing;
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using System.Windows.Forms;
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namespace LibreHardwareMonitor.UI
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{
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public class SplitContainerAdv : SplitContainer
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{
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private int _delta;
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private Border3DStyle _border3DStyle = Border3DStyle.Raised;
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private Color _bgColor = SystemColors.Control;
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public SplitContainerAdv()
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{
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SetStyle(ControlStyles.ResizeRedraw, true);
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SetStyle(ControlStyles.AllPaintingInWmPaint, true);
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SetStyle(ControlStyles.UserPaint, true);
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SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
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SetStyle(ControlStyles.ContainerControl, true);
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UpdateStyles();
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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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Graphics g = e.Graphics;
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Rectangle r = SplitterRectangle;
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using (SolidBrush brush = new SolidBrush(_bgColor))
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g.FillRectangle(brush, r);
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ControlPaint.DrawBorder3D(g, r, _border3DStyle);
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}
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protected override void OnKeyDown(KeyEventArgs e)
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{
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if (!IsSplitterFixed)
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{
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switch (e.KeyData)
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{
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case Keys.Right:
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case Keys.Down:
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SplitterDistance += SplitterIncrement;
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break;
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case Keys.Left:
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case Keys.Up:
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SplitterDistance -= SplitterIncrement;
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break;
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}
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Invalidate();
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}
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}
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protected override void OnMouseDown(MouseEventArgs e)
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{
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if (Orientation == Orientation.Vertical)
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{
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_delta = SplitterDistance - e.X;
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Cursor.Current = Cursors.VSplit;
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}
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else
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{
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_delta = SplitterDistance - e.Y;
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Cursor.Current = Cursors.HSplit;
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}
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IsSplitterFixed = true;
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}
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protected override void OnMouseMove(MouseEventArgs e)
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{
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if (IsSplitterFixed)
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{
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if (e.Button == MouseButtons.Left)
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{
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if (Orientation == Orientation.Vertical)
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{
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if (e.X > 0 && e.X < Width)
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SplitterDistance = e.X + _delta < 0 ? 0 : e.X + _delta;
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}
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else
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{
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if (e.Y > 0 && e.Y < Height)
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SplitterDistance = e.Y + _delta < 0 ? 0 : e.Y + _delta;
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}
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}
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else
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{
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IsSplitterFixed = false;
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}
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Invalidate();
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}
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else
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{
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if (SplitterRectangle.Contains(e.Location))
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Cursor = Orientation == Orientation.Vertical ? Cursors.VSplit : Cursors.HSplit;
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}
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}
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protected override void OnMouseLeave(EventArgs e)
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{
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base.OnMouseLeave(e);
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Cursor = Cursors.Default;
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}
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protected override void OnMouseUp(MouseEventArgs e)
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{
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_delta = 0;
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IsSplitterFixed = false;
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Cursor.Current = Cursors.Default;
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}
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public Border3DStyle Border3DStyle
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{
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get { return _border3DStyle; }
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set
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{
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_border3DStyle = value;
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Invalidate(false);
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}
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}
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public Color Color
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{
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get { return _bgColor; }
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set
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{
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_bgColor = value;
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Invalidate(false);
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}
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}
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}
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}
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