#region Imports
|
|
using DPumpHydr.WinFrmUI.RLT.Colors;
|
using DPumpHydr.WinFrmUI.RLT.Util;
|
using System;
|
using System.Drawing;
|
using System.Windows.Forms;
|
|
#endregion
|
|
namespace DPumpHydr.WinFrmUI.RLT.Controls
|
{
|
#region RoyalScrollBar
|
|
public class RoyalScrollBar : ControlRoyalBase
|
{
|
public event EventHandler ValueChanged;
|
|
private Color gutterColor;
|
public Color GutterColor
|
{
|
get => gutterColor;
|
set { gutterColor = value; Invalidate(); }
|
}
|
|
private Color thumbColor;
|
public Color ThumbColor
|
{
|
get => thumbColor;
|
set { thumbColor = value; Invalidate(); }
|
}
|
|
private int _value;
|
public int Value
|
{
|
get => _value;
|
set
|
{
|
if (value < 0)
|
{
|
_value = 0;
|
}
|
else if (value > Max)
|
{
|
_value = Max;
|
}
|
else
|
{
|
_value = value;
|
ValueChanged(this, EventArgs.Empty);
|
}
|
Invalidate();
|
}
|
}
|
|
private int min;
|
public int Min
|
{
|
get => min;
|
set { min = value; Invalidate(); }
|
}
|
|
private int max;
|
public int Max
|
{
|
get => max;
|
set
|
{
|
max = value;
|
|
if (Orientation == Orientation.Vertical)
|
{
|
if (max > Height)
|
{
|
thumbSize = Height * (Height / (double)max);
|
}
|
else
|
{
|
thumbSize = 0;
|
}
|
}
|
else if (Orientation == Orientation.Horizontal)
|
{
|
if (max > Width)
|
{
|
thumbSize = Width * (Width / (double)max);
|
}
|
else
|
{
|
thumbSize = 0;
|
}
|
}
|
|
Refresh();
|
Invalidate();
|
}
|
}
|
|
private int smallChange;
|
public int SmallChange
|
{
|
get => smallChange;
|
set { smallChange = value; Invalidate(); }
|
}
|
|
private int largeChange;
|
public int LargeChange
|
{
|
get => largeChange;
|
set { largeChange = value; Invalidate(); }
|
}
|
|
private double thumbSize;
|
private bool thumbSelected;
|
private Point lastMousePos;
|
private Orientation orientation;
|
public Orientation Orientation
|
{
|
get => orientation;
|
set { orientation = value; Invalidate(); }
|
}
|
|
public RoyalScrollBar()
|
{
|
SetStyle(ControlStyles.AllPaintingInWmPaint, true);
|
SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
|
SetStyle(ControlStyles.Selectable, true);
|
|
ValueChanged = new EventHandler(OnValueChanged);
|
|
gutterColor = RoyalColors.HotTrackColor;
|
thumbColor = RoyalColors.AccentColor;
|
|
Value = 0;
|
Min = 0;
|
Max = 1;
|
SmallChange = 10;
|
LargeChange = 50;
|
Orientation = Orientation.Vertical;
|
|
thumbSize = 10;
|
thumbSelected = false;
|
}
|
|
protected void DrawGutter(PaintEventArgs e)
|
{
|
if (Max > Height)
|
{
|
e.Graphics.FillRectangle(new SolidBrush(GutterColor), e.ClipRectangle);
|
}
|
}
|
|
protected void DrawThumb(PaintEventArgs e)
|
{
|
Rectangle rect = new(0, 0, 10, 10);
|
|
if (Orientation == Orientation.Vertical)
|
{
|
thumbSize = Height * (Height / (double)max);
|
double y = (double)(Height - thumbSize) * (Value / (double)max);
|
|
rect = new(new Point(0, (int)y), new Size(Width, (int)thumbSize));
|
}
|
else if (Orientation == Orientation.Horizontal)
|
{
|
thumbSize = Width * (Width / (double)max);
|
double x = (double)(Width - thumbSize) * (Value / (double)max);
|
|
rect = new(new Point((int)x, 0), new Size((int)thumbSize, Height));
|
}
|
|
e.Graphics.FillRectangle(new SolidBrush(ThumbColor), rect);
|
}
|
|
protected virtual void OnValueChanged(object sender, EventArgs e)
|
{
|
Refresh();
|
}
|
|
protected override void OnMouseWheel(MouseEventArgs e)
|
{
|
if (e.Delta > 0)
|
{
|
Value -= SmallChange;
|
|
if (Value < Min)
|
{
|
Value = Min;
|
}
|
}
|
else if (e.Delta < 0)
|
{
|
Value += SmallChange;
|
|
if (Value > Max)
|
{
|
Value = Max;
|
}
|
}
|
|
Refresh();
|
base.OnMouseWheel(e);
|
}
|
|
protected override void OnMouseEnter(EventArgs e)
|
{
|
Focus();
|
|
base.OnMouseEnter(e);
|
}
|
|
protected override void OnMouseDown(MouseEventArgs e)
|
{
|
Rectangle mouseRect = new(e.X, e.Y, 1, 1);
|
Rectangle gutterRect = new(0, 0, Width, Height);
|
Rectangle thumbRect = new(0, 0, 10, 10);
|
|
if (Orientation == Orientation.Vertical)
|
{
|
thumbSize = Height * (Height / (double)max);
|
double y = (double)(Height - thumbSize) * (Value / (double)max);
|
|
thumbRect = new(0, (int)y, Width, (int)thumbSize);
|
}
|
else if (Orientation == Orientation.Horizontal)
|
{
|
thumbSize = Width * (Width / (double)max);
|
double x = (double)(Width - thumbSize) * (Value / (double)max);
|
|
thumbRect = new((int)x, 0, (int)thumbSize, Height);
|
}
|
|
if (mouseRect.IntersectsWith(gutterRect))
|
{
|
if (mouseRect.IntersectsWith(thumbRect))
|
{
|
thumbSelected = true;
|
}
|
else
|
{
|
if (Orientation == Orientation.Vertical)
|
{
|
if (mouseRect.Y < thumbRect.Top)
|
{
|
Value -= largeChange;
|
}
|
else if (mouseRect.Y > thumbRect.Bottom)
|
{
|
Value += largeChange;
|
}
|
}
|
else if (Orientation == Orientation.Horizontal)
|
{
|
if (mouseRect.X < thumbRect.Left)
|
{
|
Value -= largeChange;
|
}
|
else if (mouseRect.X > thumbRect.Right)
|
{
|
Value += largeChange;
|
}
|
}
|
}
|
}
|
|
base.OnMouseDown(e);
|
}
|
|
protected override void OnMouseUp(MouseEventArgs e)
|
{
|
thumbSelected = false;
|
|
base.OnMouseUp(e);
|
}
|
|
protected override void OnMouseMove(MouseEventArgs e)
|
{
|
if (thumbSelected)
|
{
|
if (Orientation == Orientation.Vertical)
|
{
|
if (e.Y != lastMousePos.Y)
|
{
|
double y = e.Y - (thumbSize / 2);
|
y = Math.Min(y, Height - thumbSize);
|
y = Math.Max(y, 0);
|
|
double v = Max * (y / (Height - thumbSize));
|
Value = (int)v;
|
}
|
}
|
else if (Orientation == Orientation.Horizontal)
|
{
|
if (e.X != lastMousePos.X)
|
{
|
double x = e.X - (thumbSize / 2);
|
x = Math.Min(x, Width - thumbSize);
|
x = Math.Max(x, 0);
|
|
double v = Max * (x / (Width - thumbSize));
|
Value = (int)v;
|
}
|
}
|
}
|
|
lastMousePos = new(e.X, e.Y);
|
base.OnMouseMove(e);
|
}
|
|
protected override void OnPaint(PaintEventArgs e)
|
{
|
DrawGutter(e);
|
DrawThumb(e);
|
|
base.OnPaint(e);
|
}
|
}
|
|
#endregion
|
}
|
