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优化 重绘逻辑，减少重绘次数

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jie65535 2021-01-15 22:25:32 +08:00
parent c26e8724b9
commit 532909ed1a
2 changed files with 48 additions and 51 deletions
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2
CodeMatrix/Properties/AssemblyInfo.cs
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@ -10,7 +10,7 @@ using System.Runtime.InteropServices;
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("CodeMatrix")]
[assembly: AssemblyCopyright("Copyright © 2020")]
[assembly: AssemblyCopyright("© 2020 jie65535@github.com")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]

79
CodeMatrix/UCCodeMatrix.cs
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@ -14,7 +14,8 @@ namespace CodeMatrix
public int Rows { get; set; }
public byte[,] Matrix { get; set; }
public Point SelectPoint { get; private set; }
public Point CursorPosition { get; private set; }
public Point CursorPoint { get; private set; }
public Point HoverPoint { get; private set; }
public RectangleF CodeMatrixRect { get; private set; }
/// <summary>
@ -43,10 +44,11 @@ namespace CodeMatrix
private void InitData()
{
Rows = 5;
Columns = 5;
Rows = 9;
Columns = 16;
CellSize = new SizeF(40, 40);
_currDir = Directions.Horizontal;
HoverPoint = new Point(-1, -1);
}
private void InitComponent()
@ -84,9 +86,11 @@ namespace CodeMatrix
CodeMatrixRect = new RectangleF(blockOffset, blockSize);
}
//int _paintCount;
protected override void OnPaint(PaintEventArgs e)
{
if (!_IsLoaded) return;
//_paintCount++;
var offset = new PointF(SelectPoint.X*CellSize.Width, SelectPoint.Y*CellSize.Height);
if (_currDir == Directions.Horizontal)
@ -94,35 +98,28 @@ namespace CodeMatrix
else if (_currDir == Directions.Vertical)
e.Graphics.FillRectangle(Styles.Default.DefaultLineBackColor, offset.X + CodeMatrixRect.X, 0, CellSize.Width, Height);
Cursor = Cursors.Default;
if (CursorPosition.X >= 0 && Matrix[CursorPosition.X, CursorPosition.Y] != 0)
if (HoverPoint.X >= 0)
{
Cursor = Cursors.Hand;
if (_currDir == Directions.Horizontal)
{
if (CursorPosition.Y == SelectPoint.Y)
{
offset.X = CursorPosition.X * CellSize.Width;
offset.X = HoverPoint.X * CellSize.Width;
e.Graphics.FillRectangle(Styles.Default.SelectLineBackColor, offset.X + CodeMatrixRect.X, 0, CellSize.Width, Height);
Cursor = Cursors.Hand;
}
}
else if (_currDir == Directions.Vertical)
{
if (CursorPosition.X == SelectPoint.X)
{
offset.Y = CursorPosition.Y * CellSize.Height;
offset.Y = HoverPoint.Y * CellSize.Height;
e.Graphics.FillRectangle(Styles.Default.SelectLineBackColor, 0, offset.Y + CodeMatrixRect.Y, Width, CellSize.Height);
Cursor = Cursors.Hand;
}
}
if (Cursor == Cursors.Hand)
{
offset.X += CodeMatrixRect.X;
offset.Y += CodeMatrixRect.Y;
e.Graphics.DrawRectangle(Styles.Default.SelectCellBorderPen, offset.X, offset.Y, CellSize.Width - 1, CellSize.Height - 1);
e.Graphics.DrawRectangle(Styles.Default.SelectCellBorderPen, offset.X + 4, offset.Y + 4, CellSize.Width - 8 - 1, CellSize.Height - 8 - 1);
}
else
{
Cursor = Cursors.Default;
}
for (int col = 0; col < Columns; col++)
@ -149,6 +146,8 @@ namespace CodeMatrix
e.Graphics.DrawString(code, Font, brush, codePoint);
}
}
//e.Graphics.DrawString(_paintCount.ToString(), Font, Styles.Default.CodeBrush, 0, 0);
}
protected override void OnMouseMove(MouseEventArgs e)
@ -160,17 +159,30 @@ namespace CodeMatrix
{
var offset = new PointF(e.X-CodeMatrixRect.X, e.Y-CodeMatrixRect.Y);
var current = new Point((int)(offset.X / CellSize.Width), (int)(offset.Y / CellSize.Height));
if (CursorPosition != current)
if (CursorPoint != current)
{
CursorPosition = current;
CursorPoint = current;
var hoverPoint = new Point(-1, -1);
if (Matrix[CursorPoint.X, CursorPoint.Y] != 0)
{
if (_currDir == Directions.Horizontal && CursorPoint.Y == SelectPoint.Y)
hoverPoint = CursorPoint;
else if (_currDir == Directions.Vertical && CursorPoint.X == SelectPoint.X)
hoverPoint = CursorPoint;
}
if (HoverPoint != hoverPoint)
{
HoverPoint = hoverPoint;
Invalidate();
}
}
}
else
{
if (CursorPosition.X >= 0)
if (HoverPoint.X >= 0)
{
CursorPosition = new Point(-1, -1);
HoverPoint = CursorPoint = new Point(-1, -1);
Invalidate();
}
}
@ -179,29 +191,14 @@ namespace CodeMatrix
protected override void OnMouseClick(MouseEventArgs e)
{
if (CursorPosition.X >= 0 && Matrix[CursorPosition.X, CursorPosition.Y] != 0)
if (HoverPoint.X >= 0)
{
if (_currDir == Directions.Horizontal)
{
if (CursorPosition.Y == SelectPoint.Y)
{
Matrix[CursorPosition.X, CursorPosition.Y] = 0;
_currDir = Directions.Vertical;
SelectPoint = CursorPosition;
SelectPoint = HoverPoint;
HoverPoint = new Point(-1, -1);
Matrix[SelectPoint.X, SelectPoint.Y] = 0;
_currDir = _currDir == Directions.Horizontal ? Directions.Vertical : Directions.Horizontal;
Invalidate();
}
}
else if (_currDir == Directions.Vertical)
{
if (CursorPosition.X == SelectPoint.X)
{
Matrix[CursorPosition.X, CursorPosition.Y] = 0;
_currDir = Directions.Horizontal;
SelectPoint = CursorPosition;
Invalidate();
}
}
}
base.OnMouseClick(e);
}