public override void Draw(Graphics graphics)
{
#region 背景色
if (!BackColor.IsEmpty)
{
using (var brush = new SolidBrush(this.BackColor))
{
graphics.FillRectangle(brush, this.Rectangle);
}
}
#endregion
if (TableHeadDrawing != null)
{
var args = new TableHeadDrawEventArgs()
{
Cancel = false, Graphics = graphics, TableHead = this
};
TableHeadDrawing(args);
if (args.Cancel)
{
return;
}
}
if (!string.IsNullOrEmpty(Text))
{
var font = this.Font == null ? SystemFonts.DefaultFont : this.Font;
var foreColor = this.ForeColor.IsEmpty ? SystemColors.WindowText : this.ForeColor;
var fontSize = graphics.MeasureString(this.Text, font);
GDIHelper.DrawString(graphics, this.Rectangle, font, this.Text, foreColor, Align);
}
}
public override void Draw(Graphics graphics)
{
if (this.isHover)
{
GDIHelper.DrawString(graphics, this.Rectangle, Font, Text, ForeColor, this.HoverColor, this.Align, this.RadiusMode, this.Radius);
}
else
{
GDIHelper.DrawString(graphics, this.Rectangle, Font, Text, ForeColor, this.BackColor, this.Align, this.RadiusMode, this.Radius);
}
}
/// <summary>
/// 在指定区域绘制图片(可设置图片透明度) (平铺绘制）
/// Draws the image.
/// </summary>
/// <param name="g">The g.</param>
/// <param name="rect">The rect.</param>
/// <param name="img">The img.</param>
/// User:Ryan CreateTime:2012-8-3 21:12.
public static void DrawImage(Graphics g, Rectangle rect, Image img, float opacity)
{
if (opacity <= 0)
{
return;
}
using (ImageAttributes imgAttributes = new ImageAttributes())
{
GDIHelper.SetImageOpacity(imgAttributes, opacity >= 1 ? 1 : opacity);
Rectangle imageRect = new Rectangle(rect.X, rect.Y + rect.Height / 2 - img.Size.Height / 2, img.Size.Width, img.Size.Height);
g.DrawImage(img, rect, 0, 0, img.Width, img.Height, GraphicsUnit.Pixel, imgAttributes);
}
}
public override void Draw(Graphics graphics)
{
if (CellDrawing != null)
{
var args = new TableCellDrawEventArgs()
{
Cancel = false, Cell = this, Graphics = graphics
};
CellDrawing(args);
if (args.Cancel)
{
return;
}
}
if (!string.IsNullOrEmpty(Text))
{
GDIHelper.DrawString(graphics, this.Rectangle, this.Font, Text, ForeColor, Align);
}
}
private void PaintImage(PaintEventArgs e)
{
if (leftRectangle.IsEmpty)
{
rightRectangle = new Rectangle(this.Width - 80, (this.Height - 40) / 2, 40, 40);
leftRectangle = new Rectangle(40, (this.Height - 40) / 2, 40, 40);
}
e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
using (var brush = new SolidBrush(Color.FromArgb(70, 136, 71)))
{
e.Graphics.FillEllipse(brush, rightRectangle);
e.Graphics.FillEllipse(brush, leftRectangle);
}
var font = new Font("宋体", 14, FontStyle.Bold);
GDIHelper.DrawString(e.Graphics, rightRectangle, font, ">", Color.White, TextAlignment.MiddleCenter);
GDIHelper.DrawString(e.Graphics, leftRectangle, font, "<", Color.White, TextAlignment.MiddleCenter);
}
/// <summary>
/// 创建临时背景图片
/// </summary>
private Bitmap CreateBacgroundImage()
{
Rectangle rect = new Rectangle(this.Padding.Left,
this.Caption.Height,
this.Width - this.Padding.Left - this.Padding.Right,
this.Height - this.Caption.Height - this.Padding.Bottom);
int w = rect.Width;
int h = rect.Height;
Point p1 = new Point(this.Location.X + this.Padding.Left,
this.Location.Y + this.Caption.Height);
Point p = this.Parent == null ? p1 : this.PointToScreen(p1);
Bitmap TempImg = new Bitmap(w, h);
try
{
Bitmap img = new Bitmap(w, h);
using (Graphics g = Graphics.FromImage(TempImg))
{
g.CopyFromScreen(p, new Point(0, 0), new Size(w, h));
}
using (Graphics g = Graphics.FromImage(img))
{
GDIHelper.DrawImage(g, new Rectangle(0, 0, w, h), TempImg, 0.36F);
}
return(img);
}
catch
{
return(null);
}
finally
{
TempImg.Dispose();
}
}
private void DrawBackground(PaintEventArgs e, Graphics g)
{
using (var brush = new SolidBrush(this.BackColor))
{
g.FillRectangle(brush, this.ClientRectangle);
}
#region 表格边框
if (BorderStyle != MHtmlBorderType.None && this.BorderSize > 0)
{
using (var pen = new Pen(this.BorderColor, this.BorderSize))
{
pen.DashStyle = GetDashStyle(BorderStyle);
g.DrawRectangle(pen, new Rectangle(this.ClientRectangle.X, this.ClientRectangle.Y, this.ClientRectangle.Width - BorderSize, this.ClientRectangle.Height - BorderSize));
}
}
#endregion
var borderSize = this.BorderStyle == MHtmlBorderType.None ? 0 : this.BorderSize;
var y = borderSize;
if (this.TableHead.Visible)
{
this.TableHead.Draw(g);
y += this.TableHead.Height;
}
if (this.columnHeadVisible)
{
// 表头背景
using (var brush = new SolidBrush(this.ColumnHeadBackColor))
{
g.FillRectangle(brush, new Rectangle(borderSize, y, this.Width - borderSize * 2, this.ColumnHeadHeight));
}
#region 绘制表头
if (columns != null)
{
var columnWidth = this.equallyColumn ? (this.Width - borderSize * 2) / this.columns.Count : 0;
var x = borderSize;
var index = 0;
foreach (var item in columns)
{
item.Width = columnWidth == 0 ? item.Width : columnWidth;
var rect = new Rectangle(x, y, item.Width, this.ColumnHeadHeight);
if (item.BackColor != Color.Empty)
{
using (var brush = new SolidBrush(item.BackColor))
{
g.FillRectangle(brush, rect);
}
}
if (index < columns.Count - 1 && this.VerticalBorderStyle != MHtmlBorderType.None)
{
using (var pen = new Pen(this.VerticalBorderColor, this.VerticalBorderSize))
{
pen.DashStyle = GetDashStyle(BorderStyle);
g.DrawLine(pen, rect.X + rect.Width - this.VerticalBorderSize, rect.Y, rect.X + rect.Width - this.VerticalBorderSize, rect.Y + rect.Height - borderSize - this.VerticalBorderSize);
//g.DrawRectangle(pen, new Rectangle(this.ClientRectangle.X, this.ClientRectangle.Y, this.ClientRectangle.Width - BorderSize, this.ClientRectangle.Height - BorderSize));
}
}
if (!string.IsNullOrEmpty(item.Text))
{
var font = item.Font == null ? this.Font : item.Font;
GDIHelper.DrawString(g, rect, font, item.Text, item.ForeColor.IsEmpty ? this.ForeColor : item.ForeColor, item.Align);
}
x += item.Width;
index++;
}
}
#endregion
}
}
protected override void OnPaint(PaintEventArgs e)
{
e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
if (string.IsNullOrEmpty(this.Text))
{
this.text = string.Empty;
}
var size = e.Graphics.MeasureString(Text, this.Font);
var row = (int)size.Width / (this.Width - 6);
if (Text.Contains(System.Environment.NewLine))
{
row += this.Text.Split(new string[] { System.Environment.NewLine }, System.StringSplitOptions.None).Length;
}
else if (Text.Contains("\n"))
{
row += this.Text.Split(new string[] { "\n" }, System.StringSplitOptions.None).Length;
}
var height = size.Width > this.Width ? (row + 1) * this.Font.Height : 30;
//using (var brush = new SolidBrush(Color.Black))
//{
// e.Graphics.DrawString(Text, this.Font, brush, new Rectangle(3, this.Caption.Height + 3, this.Width - 6, height));
//}
if (this.AutoSize)
{
var left = this.border.Width > 0 ? this.border.Width : this.border.Left;
var right = this.border.Width > 0 ? this.border.Width : this.border.Right;
var bottom = this.border.Width > 0 ? this.border.Width : this.border.Bottom;
var top = this.border.Width > 0 ? this.border.Width : this.border.Top;
var w = left + right + size.Width;
var h = top + bottom + height;
if (this.Size.Height != (int)h || this.Size.Width != (int)w)
{
this.Size = new Size((int)Math.Ceiling(w), h);
}
}
// 注意，如果使用e.ClipRectangle，容器控件移动过程中，会出现重叠绘制
if (this.radiusMode != RadiusMode.None && this.radius > 0)
{
GDIHelper.DrawString(e.Graphics, ClientRectangle, this.Font, this.Text, this.ForeColor, this.BackgroundColor, Align, RadiusMode, Radius);
}
else if (this.border != null && !this.border.IsEmpty)
{
var left = this.border.Width > 0 ? this.border.Width : this.border.Left;
var right = this.border.Width > 0 ? this.border.Width : this.border.Right;
var bottom = this.border.Width > 0 ? this.border.Width : this.border.Bottom;
var top = this.border.Width > 0 ? this.border.Width : this.border.Top;
#region 绘制边框
using (var pen = new Pen(this.border.Color))
{
if (top > 0)
{
pen.Width = top;
e.Graphics.DrawLine(pen, 0, 0, this.Width, 0);
}
if (left > 0)
{
pen.Width = left;
e.Graphics.DrawLine(pen, 0, 0, 0, this.Height);
}
if (right > 0)
{
pen.Width = right;
e.Graphics.DrawLine(pen, this.Width - right, 0, this.Width - right, this.Height);
}
if (bottom > 0)
{
pen.Width = bottom;
e.Graphics.DrawLine(pen, 0, this.Height - bottom, 0, this.Height - bottom);
}
}
#endregion
GDIHelper.DrawString(e.Graphics, new Rectangle(ClientRectangle.X + left, ClientRectangle.Y + top, ClientRectangle.Width - left - right, ClientRectangle.Height - top - bottom), this.Font, this.Text, this.ForeColor, this.Align);
}
else
{
//using (var brush = new SolidBrush(this.ForeColor))
//{
// e.Graphics.DrawString(Text, Font, brush, new Rectangle(0, 0, this.Width, height));
//}
if (row > 1)
{
GDIHelper.DrawString(e.Graphics, new Rectangle(0, 0, this.Width, height), this.Font, this.Text, this.ForeColor, this.Align);
}
else
{
GDIHelper.DrawString(e.Graphics, ClientRectangle, this.Font, this.Text, this.ForeColor, this.Align);
}
}
}
internal void DrawElement(MHtmlElement element, Graphics graphics)
{
var rect = new Rectangle(element.RelativePosition, element.Rectangle.Size);
if (rect.IsEmpty)
{
return;
}
#region 边框和背景
// 圆角模式，忽略边框样式
if (element.RadiusMode != RadiusMode.None && element.Radius > 0)
{
var color1 = element.BackColor.IsEmpty ? Color.Transparent : element.BackColor;
var color2 = element.BackColorGradient;
RadiusDrawable.DrawRadius(graphics, rect, element.RadiusMode, element.Radius, element.BackColor, element.BackColorGradient, element.Gradient, element.Border.Color, element.Border.Width);
}
// 有边框
else if (element.Border != null && !element.Border.IsEmpty)
{
if (!element.BackColor.IsEmpty)
{
using (var brush = new SolidBrush(element.BackColor))
{
graphics.FillRectangle(brush, element.Rectangle);
}
}
var bl = element.Border.Left == 0 ? element.Border.Width : element.Border.Left;
var bt = element.Border.Top == 0 ? element.Border.Width : element.Border.Top;
var br = element.Border.Right == 0 ? element.Border.Width : element.Border.Right;
var bb = element.Border.Bottom == 0 ? element.Border.Width : element.Border.Bottom;
using (var pen = new Pen(element.Border.Color))
{
pen.DashStyle = element.Border.GetDashStyle();
if (bl > 0)
{
pen.Width = bl;
graphics.DrawLine(pen, rect.X, rect.Y, rect.X, rect.Y + rect.Height);
}
if (bt > 0)
{
pen.Width = bt;
graphics.DrawLine(pen, rect.X, rect.Y, rect.X + rect.Width, rect.Y);
}
if (br > 0)
{
pen.Width = br;
graphics.DrawLine(pen, rect.X + rect.Width, rect.Y, rect.X + rect.Width, rect.Y + rect.Height);
}
if (bb > 0)
{
pen.Width = bb;
graphics.DrawLine(pen, rect.X, rect.Y + rect.Height, rect.X + rect.Width, rect.Y + rect.Height);
}
}
}
else
{
// 没有边框，直接处理背景
if (!element.BackColor.IsEmpty)
{
using (var brush = new SolidBrush(element.BackColor))
{
graphics.FillRectangle(brush, rect);
}
}
}
#endregion
if (!string.IsNullOrEmpty(element.Text))
{
var textRect = new Rectangle(rect.X + element.Padding.Left, rect.Y + element.Padding.Top, rect.Width - element.Padding.Left - element.Padding.Right, rect.Height - element.Padding.Top - element.Padding.Bottom);
GDIHelper.DrawString(graphics, textRect, element.Font, element.Text, element.ForeColor, element.Align);
}
if (element.HasHover)
{
Hovers.Add(element);
}
if (element.HasClick)
{
Clicks.Add(element);
}
if (element.HasLeave)
{
Leaves.Add(element);
}
if (element.Items != null)
{
foreach (var item in element.Items)
{
this.DrawElement(item, graphics);
}
}
}