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liu.wenjie
2021-11-23 15:51:37 +08:00
parent 47f77f5e64
commit a24dda2525
474 changed files with 91916 additions and 6429 deletions
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UsingControl/HZHControls/Controls/ScrollBar/UCVScrollbar.cs Normal file
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// ***********************************************************************
// Assembly : HZH_Controls
// Created : 2019-09-19
//
// ***********************************************************************
// <copyright file="UCVScrollbar.cs">
// Copyright by Huang Zhenghui(黄正辉) All, QQ group:568015492 QQ:623128629 Email:623128629@qq.com
// </copyright>
//
// Blog: https://www.cnblogs.com/bfyx
// GitHub：https://github.com/kwwwvagaa/NetWinformControl
// gitee：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
//
// If you use this code, please keep this note.
// ***********************************************************************
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.Windows.Forms.Design;
using System.Diagnostics;
namespace HZH_Controls.Controls
{
/// <summary>
/// Class UCVScrollbar.
/// Implements the <see cref="HZH_Controls.Controls.UCControlBase" />
/// </summary>
/// <seealso cref="HZH_Controls.Controls.UCControlBase" />
[Designer(typeof(ScrollbarControlDesigner))]
[DefaultEvent("Scroll")]
public class UCVScrollbar : UCControlBase
{
/// <summary>
/// The mo large change
/// </summary>
protected int moLargeChange = 10;
/// <summary>
/// The mo small change
/// </summary>
protected int moSmallChange = 1;
/// <summary>
/// The mo minimum
/// </summary>
protected int moMinimum = 0;
/// <summary>
/// The mo maximum
/// </summary>
protected int moMaximum = 100;
/// <summary>
/// The mo value
/// </summary>
protected int moValue = 0;
/// <summary>
/// The n click point
/// </summary>
private int nClickPoint;
/// <summary>
/// The mo thumb top
/// </summary>
protected int moThumbTop = 0;
/// <summary>
/// The mo automatic size
/// </summary>
protected bool moAutoSize = false;
/// <summary>
/// The mo thumb down
/// </summary>
private bool moThumbMouseDown = false;
/// <summary>
/// The mo thumb dragging
/// </summary>
private bool moThumbMouseDragging = false;
/// <summary>
/// Occurs when [scroll].
/// </summary>
public new event EventHandler Scroll = null;
/// <summary>
/// Occurs when [value changed].
/// </summary>
public event EventHandler ValueChanged = null;
/// <summary>
/// The BTN height
/// </summary>
private int btnHeight = 18;
/// <summary>
/// The m int thumb minimum height
/// </summary>
private int m_intThumbMinHeight = 15;
/// <summary>
/// Gets or sets the height of the BTN.
/// </summary>
/// <value>The height of the BTN.</value>
public int BtnHeight
{
get { return btnHeight; }
set { btnHeight = value; }
}
/// <summary>
/// Gets or sets the large change.
/// </summary>
/// <value>The large change.</value>
[EditorBrowsable(EditorBrowsableState.Always), Browsable(true), DefaultValue(false), Category("自定义"), Description("LargeChange")]
public int LargeChange
{
get { return moLargeChange; }
set
{
moLargeChange = value;
Invalidate();
}
}
/// <summary>
/// Gets or sets the small change.
/// </summary>
/// <value>The small change.</value>
[EditorBrowsable(EditorBrowsableState.Always), Browsable(true), DefaultValue(false), Category("自定义"), Description("SmallChange")]
public int SmallChange
{
get { return moSmallChange; }
set
{
moSmallChange = value;
Invalidate();
}
}
/// <summary>
/// Gets or sets the minimum.
/// </summary>
/// <value>The minimum.</value>
[EditorBrowsable(EditorBrowsableState.Always), Browsable(true), DefaultValue(false), Category("自定义"), Description("Minimum")]
public int Minimum
{
get { return moMinimum; }
set
{
moMinimum = value;
Invalidate();
}
}
/// <summary>
/// Gets or sets the maximum.
/// </summary>
/// <value>The maximum.</value>
[EditorBrowsable(EditorBrowsableState.Always), Browsable(true), DefaultValue(false), Category("自定义"), Description("Maximum")]
public int Maximum
{
get { return moMaximum; }
set
{
moMaximum = value;
Invalidate();
}
}
/// <summary>
/// Gets or sets the value.
/// </summary>
/// <value>The value.</value>
[EditorBrowsable(EditorBrowsableState.Always), Browsable(true), DefaultValue(false), Category("自定义"), Description("Value")]
public int Value
{
get { return moValue; }
set
{
moValue = value;
int nTrackHeight = (this.Height - btnHeight * 2);
float fThumbHeight = ((float)LargeChange / (float)Maximum) * nTrackHeight;
int nThumbHeight = (int)fThumbHeight;
if (nThumbHeight > nTrackHeight)
{
nThumbHeight = nTrackHeight;
fThumbHeight = nTrackHeight;
}
if (nThumbHeight < m_intThumbMinHeight)
{
nThumbHeight = m_intThumbMinHeight;
fThumbHeight = m_intThumbMinHeight;
}
//figure out value
int nPixelRange = nTrackHeight - nThumbHeight;
int nRealRange = (Maximum - Minimum) - LargeChange;
float fPerc = 0.0f;
if (nRealRange != 0)
{
fPerc = (float)moValue / (float)nRealRange;
}
float fTop = fPerc * nPixelRange;
moThumbTop = (int)fTop;
Invalidate();
}
}
/// <summary>
/// Gets or sets a value indicating whether [automatic size].
/// </summary>
/// <value><c>true</c> if [automatic size]; otherwise, <c>false</c>.</value>
public override bool AutoSize
{
get
{
return base.AutoSize;
}
set
{
base.AutoSize = value;
if (base.AutoSize)
{
this.Width = 15;
}
}
}
/// <summary>
/// The thumb color
/// </summary>
private Color thumbColor = Color.FromArgb(255, 77, 58);
/// <summary>
/// Gets or sets the color of the thumb.
/// </summary>
/// <value>The color of the thumb.</value>
public Color ThumbColor
{
get { return thumbColor; }
set { thumbColor = value; }
}
/// <summary>
/// Initializes a new instance of the <see cref="UCVScrollbar"/> class.
/// </summary>
public UCVScrollbar()
{
InitializeComponent();
ConerRadius = 2;
FillColor = Color.FromArgb(239, 239, 239);
IsShowRect = false;
IsRadius = true;
this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
this.SetStyle(ControlStyles.DoubleBuffer, true);
this.SetStyle(ControlStyles.ResizeRedraw, true);
this.SetStyle(ControlStyles.Selectable, true);
this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
this.SetStyle(ControlStyles.UserPaint, true);
}
/// <summary>
/// Initializes the component.
/// </summary>
private void InitializeComponent()
{
this.SuspendLayout();
//
// UCVScrollbar
//
this.MinimumSize = new System.Drawing.Size(10, 0);
this.Name = "UCVScrollbar";
this.Size = new System.Drawing.Size(18, 150);
this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.CustomScrollbar_MouseDown);
this.MouseMove += new System.Windows.Forms.MouseEventHandler(this.CustomScrollbar_MouseMove);
this.MouseUp += new System.Windows.Forms.MouseEventHandler(this.CustomScrollbar_MouseUp);
this.ResumeLayout(false);
}
/// <summary>
/// 引发 <see cref="E:System.Windows.Forms.Control.Paint" /> 事件。
/// </summary>
/// <param name="e">包含事件数据的 <see cref="T:System.Windows.Forms.PaintEventArgs" />。</param>
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
e.Graphics.SetGDIHigh();
//draw thumb
int nTrackHeight = (this.Height - btnHeight * 2);
float fThumbHeight = ((float)LargeChange / (float)Maximum) * nTrackHeight;
int nThumbHeight = (int)fThumbHeight;
if (nThumbHeight > nTrackHeight)
{
nThumbHeight = nTrackHeight;
fThumbHeight = nTrackHeight;
}
if (nThumbHeight < m_intThumbMinHeight)
{
nThumbHeight = m_intThumbMinHeight;
fThumbHeight = m_intThumbMinHeight;
}
int nTop = moThumbTop;
nTop += btnHeight;
e.Graphics.FillPath(new SolidBrush(thumbColor), new Rectangle(1, nTop, this.Width - 3, nThumbHeight).CreateRoundedRectanglePath(this.ConerRadius));
ControlHelper.PaintTriangle(e.Graphics, new SolidBrush(thumbColor), new Point(this.Width / 2, btnHeight - Math.Min(5, this.Width / 2)), Math.Min(5, this.Width / 2), GraphDirection.Upward);
ControlHelper.PaintTriangle(e.Graphics, new SolidBrush(thumbColor), new Point(this.Width / 2, this.Height - (btnHeight - Math.Min(5, this.Width / 2))), Math.Min(5, this.Width / 2), GraphDirection.Downward);
}
/// <summary>
/// Handles the MouseDown event of the CustomScrollbar control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="MouseEventArgs"/> instance containing the event data.</param>
private void CustomScrollbar_MouseDown(object sender, MouseEventArgs e)
{
Point ptPoint = this.PointToClient(Cursor.Position);
int nTrackHeight = (this.Height - btnHeight * 2);
float fThumbHeight = ((float)LargeChange / (float)Maximum) * nTrackHeight;
int nThumbHeight = (int)fThumbHeight;
if (nThumbHeight > nTrackHeight)
{
nThumbHeight = nTrackHeight;
fThumbHeight = nTrackHeight;
}
if (nThumbHeight < m_intThumbMinHeight)
{
nThumbHeight = m_intThumbMinHeight;
fThumbHeight = m_intThumbMinHeight;
}
int nTop = moThumbTop;
nTop += btnHeight;
Rectangle thumbrect = new Rectangle(new Point(1, nTop), new Size(this.Width - 2, nThumbHeight));
if (thumbrect.Contains(ptPoint))
{
//hit the thumb
nClickPoint = (ptPoint.Y - nTop);
//MessageBox.Show(Convert.ToString((ptPoint.Y - nTop)));
this.moThumbMouseDown = true;
}
else
{
Rectangle uparrowrect = new Rectangle(new Point(1, 0), new Size(this.Width, btnHeight));
if (uparrowrect.Contains(ptPoint))
{
int nRealRange = (Maximum - Minimum) - LargeChange;
int nPixelRange = (nTrackHeight - nThumbHeight);
if (nRealRange > 0)
{
if (nPixelRange > 0)
{
if ((moThumbTop - SmallChange) < 0)
moThumbTop = 0;
else
moThumbTop -= SmallChange;
//figure out value
float fPerc = (float)moThumbTop / (float)nPixelRange;
float fValue = fPerc * (Maximum - LargeChange);
moValue = (int)fValue;
if (ValueChanged != null)
ValueChanged(this, new EventArgs());
if (Scroll != null)
Scroll(this, new EventArgs());
Invalidate();
}
}
}
else
{
Rectangle downarrowrect = new Rectangle(new Point(1, btnHeight + nTrackHeight), new Size(this.Width, btnHeight));
if (downarrowrect.Contains(ptPoint))
{
int nRealRange = (Maximum - Minimum) - LargeChange;
int nPixelRange = (nTrackHeight - nThumbHeight);
if (nRealRange > 0)
{
if (nPixelRange > 0)
{
if ((moThumbTop + SmallChange) > nPixelRange)
moThumbTop = nPixelRange;
else
moThumbTop += SmallChange;
//figure out value
float fPerc = (float)moThumbTop / (float)nPixelRange;
float fValue = fPerc * (Maximum - LargeChange);
moValue = (int)fValue;
if (ValueChanged != null)
ValueChanged(this, new EventArgs());
if (Scroll != null)
Scroll(this, new EventArgs());
Invalidate();
}
}
}
}
}
}
/// <summary>
/// Handles the MouseUp event of the CustomScrollbar control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="MouseEventArgs"/> instance containing the event data.</param>
private void CustomScrollbar_MouseUp(object sender, MouseEventArgs e)
{
this.moThumbMouseDown = false;
this.moThumbMouseDragging = false;
}
/// <summary>
/// Moves the thumb.
/// </summary>
/// <param name="y">The y.</param>
private void MoveThumb(int y)
{
int nRealRange = Maximum - Minimum;
int nTrackHeight = (this.Height - btnHeight * 2);
float fThumbHeight = ((float)LargeChange / (float)Maximum) * nTrackHeight;
int nThumbHeight = (int)fThumbHeight;
if (nThumbHeight > nTrackHeight)
{
nThumbHeight = nTrackHeight;
fThumbHeight = nTrackHeight;
}
if (nThumbHeight < m_intThumbMinHeight)
{
nThumbHeight = m_intThumbMinHeight;
fThumbHeight = m_intThumbMinHeight;
}
int nSpot = nClickPoint;
int nPixelRange = (nTrackHeight - nThumbHeight);
if (moThumbMouseDown && nRealRange > 0)
{
if (nPixelRange > 0)
{
int nNewThumbTop = y - (btnHeight + nSpot);
if (nNewThumbTop < 0)
{
moThumbTop = nNewThumbTop = 0;
}
else if (nNewThumbTop > nPixelRange)
{
moThumbTop = nNewThumbTop = nPixelRange;
}
else
{
moThumbTop = y - (btnHeight + nSpot);
}
float fPerc = (float)moThumbTop / (float)nPixelRange;
float fValue = fPerc * (Maximum - LargeChange);
moValue = (int)fValue;
Application.DoEvents();
Invalidate();
}
}
}
/// <summary>
/// Handles the MouseMove event of the CustomScrollbar control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="MouseEventArgs"/> instance containing the event data.</param>
private void CustomScrollbar_MouseMove(object sender, MouseEventArgs e)
{
if (!moThumbMouseDown)
return;
if (moThumbMouseDown == true)
{
this.moThumbMouseDragging = true;
}
if (this.moThumbMouseDragging)
{
MoveThumb(e.Y);
}
if (ValueChanged != null)
ValueChanged(this, new EventArgs());
if (Scroll != null)
Scroll(this, new EventArgs());
}
}
}