protected override void OnPaint(PaintEventArgs e)
{
imageLocationX = 8;
imageLocationY = (int)Math.Round((float)(this.ClientRectangle.Height - (int)Math.Round(this.Font.SizeInPoints)) / 2);
imageLocationY = imageLocationY - 2;
textLocationX = 26;
textLocationY = (int)Math.Round((float)(this.ClientRectangle.Height - (int)Math.Round(this.Font.SizeInPoints)) / 2);
textLocationY = textLocationY - 1;
fillRect = new Rectangle(0, 0, this.Bounds.Width, this.Bounds.Height);
drawRect = new Rectangle(0, 0, this.Bounds.Width - 2, this.Bounds.Height - 2);
textBrush = new SolidBrush(this.ForeColor);
imageRect = new Rectangle(imageLocationX, imageLocationY, 16, 16);
backBrush = new LinearGradientBrush(drawRect,
Color.White, Color.FromArgb(236, 233, 217), LinearGradientMode.ForwardDiagonal);
backBrush_Selected = new LinearGradientBrush(drawRect,
Color.FromArgb(241, 243, 236), Color.FromArgb(188, 196, 166), LinearGradientMode.ForwardDiagonal);
drawPen = new Pen(SystemColors.ActiveCaption);
drawPen_Selected = new Pen(SystemColors.ActiveCaption);
if (this.Selected)
{
e.Graphics.FillPath(backBrush_Selected, DrawingTool.RoundedRect(fillRect, 3));
e.Graphics.DrawPath(drawPen_Selected, DrawingTool.RoundedRect(drawRect, 3));
}
else
{
e.Graphics.FillPath(backBrush, DrawingTool.RoundedRect(fillRect, 3));
e.Graphics.DrawPath(drawPen, DrawingTool.RoundedRect(drawRect, 3));
}
if (this.Image != null)
{
e.Graphics.DrawImage(this.Image, imageRect);
e.Graphics.DrawString(this.Text, this.Font, textBrush, new Point(textLocationX + 14, textLocationY), stringFormat);
}
e.Graphics.DrawString(this.ShowText, this.Font, textBrush, new Point(textLocationX, textLocationY), stringFormat);
}
/// <summary>
/// 绘制项
/// </summary>
/// <param name="g"></param>
/// <param name="item"></param>
/// <param name="state"></param>
/// <param name="bounds"></param>
internal virtual void DrawItem(Graphics g, ShengListViewItem item)
{
Rectangle bounds = LayoutManager.GetItemBounds(item);
g.SetClip(bounds);
DrawItemBackground(g, bounds);
Rectangle backgroundRect = bounds;
backgroundRect.Width -= 1;
backgroundRect.Height -= 1;
// Paint background Selected
if ((LayoutManager.Focused && ((item.State & ShengListViewItemState.Selected) == ShengListViewItemState.Selected)) ||
(LayoutManager.Focused == false && ((item.State & ShengListViewItemState.Selected) == ShengListViewItemState.Selected) && ((item.State & ShengListViewItemState.Hovered) == ShengListViewItemState.Hovered)))
{
using (Brush bSelected = new LinearGradientBrush(backgroundRect, Theme.SelectedColorStart, Theme.SelectedColorEnd, LinearGradientMode.Vertical))
{
// ImageListViewUtility.FillRoundedRectangle(g, bSelected, bounds, 4);
g.FillPath(bSelected, DrawingTool.RoundedRect(backgroundRect, _radius));
}
}
// Paint background unfocused
else if (LayoutManager.Focused == false && ((item.State & ShengListViewItemState.Selected) == ShengListViewItemState.Selected))
{
using (Brush bGray64 = new LinearGradientBrush(backgroundRect, Theme.UnFocusedColorStart, Theme.UnFocusedColorEnd, LinearGradientMode.Vertical))
{
// ImageListViewUtility.FillRoundedRectangle(g, bGray64, bounds, 4);
g.FillPath(bGray64, DrawingTool.RoundedRect(backgroundRect, _radius));
}
}
// Paint background Hovered
//如果正处于框选状态，不绘制Hover状态，减小闪烁
if (LayoutManager.MouseSelecting == false && (item.State & ShengListViewItemState.Hovered) == ShengListViewItemState.Hovered)
{
using (Brush bHovered = new LinearGradientBrush(backgroundRect, Theme.HoverColorStart, Theme.HoverColorEnd, LinearGradientMode.Vertical))
{
// ImageListViewUtility.FillRoundedRectangle(g, bHovered, bounds, 4);
g.FillPath(bHovered, DrawingTool.RoundedRect(backgroundRect, _radius));
}
}
DrawItemBorder(g, bounds, item);
// Focus rectangle
if (LayoutManager.Focused && ((item.State & ShengListViewItemState.Focused) == ShengListViewItemState.Focused))
{
ControlPaint.DrawFocusRectangle(g, bounds);
}
DrawItemContent(g, bounds, item);
}
/// <summary>
/// 绘制项的边框
/// </summary>
/// <param name="g"></param>
/// <param name="bounds"></param>
internal virtual void DrawItemBorder(Graphics g, Rectangle bounds)
{
Rectangle backgroundRect = bounds;
backgroundRect.Width -= 1;
backgroundRect.Height -= 1;
using (Pen pWhite128 = new Pen(Color.FromArgb(128, Theme.ItemBorderColor)))
{
// ImageListViewUtility.DrawRoundedRectangle(g, pWhite128, bounds.Left, bounds.Top , bounds.Width - 1, bounds.Height - 1, _radius);
g.DrawPath(pWhite128, DrawingTool.RoundedRect(backgroundRect, _radius));
}
}
protected override void OnPaint(PaintEventArgs e)
{
Color colorMenuHighLight = ControlPaint.LightLight(SystemColors.MenuHighlight);
#region 定义
//显示图像的位置X坐标
int imageLocationX = 4;
//显示图像的位置Y坐标
int imageLocationY = 2;
//显示文本的位置X坐标
int textLocationX = 6;
//显示文本的位置Y坐标
//int textLocationY = 4;
int textLocationY = (int)Math.Round((float)(this.ContentRectangle.Height - (int)Math.Round(this.Font.SizeInPoints)) / 2);
//子菜单显示文本位置X坐标
int textLocationX_DropDown = 33;
//子菜单显示图像的位置X坐标
int imageLocationX_DropDown = 5;
//子菜单显示图像的位置Y坐标
int imageLocationY_DropDown = 3;
//文本填充
SolidBrush textBrush = new SolidBrush(this.ForeColor);
//显示图像的Rectangle
Rectangle imageRect = new Rectangle(imageLocationX, imageLocationY, 16, 16);
//子菜单显示图像的Rectangle
Rectangle imageRect_DropDown = new Rectangle(imageLocationX_DropDown, imageLocationY_DropDown, 16, 16);
//菜单背景填充
SolidBrush backBrush_Normal = new SolidBrush(SystemColors.ControlLightLight);
//菜单背景填充 选中状态
//LinearGradientBrush backBrush_Selected = new LinearGradientBrush(new Point(0, 0), new Point(0, this.Height),
// Color.FromArgb(255, 246, 204), Color.FromArgb(255, 194, 115));
LinearGradientBrush backBrush_Selected = new LinearGradientBrush(new Point(0, 0), new Point(0, this.Height),
Color.White, colorMenuHighLight);
//菜单背景填充 按下状态
//LinearGradientBrush backBrush_Pressed = new LinearGradientBrush(new Point(0, 0), new Point(0, this.Height),
// Color.White, Color.LightSkyBlue);
LinearGradientBrush backBrush_Pressed = new LinearGradientBrush(new Point(0, 0), new Point(0, this.Height),
Color.White, colorMenuHighLight);
//子菜单左侧边条的填充
LinearGradientBrush leftBrush_DropDown = new LinearGradientBrush(new Point(0, 0), new Point(25, 0),
Color.White, Color.FromArgb(233, 230, 215));
//填充Rectangle 顶层
Rectangle fillRect = new Rectangle(0, 0, this.Bounds.Width, this.Bounds.Height);
//子菜单填充Rectangle
Rectangle fillRect_DropDown = new Rectangle(2, 0, this.Bounds.Width - 4, this.Bounds.Height);
//边框Rectangle 顶层
Rectangle drawRect = new Rectangle(0, 0, this.Bounds.Width - 1, this.Bounds.Height - 1);
//子菜单边框Rectangle
Rectangle drawRect_DropDown = new Rectangle(3, 0, this.Bounds.Width - 6, this.Bounds.Height - 2);
//子菜单左侧与内容的分隔条
Pen leftLine = new Pen(Color.FromArgb(197, 194, 184));
//边框画笔 顶层
//Pen drawPen = new Pen(Color.FromArgb(255, 192, 111));
Pen drawPen = new Pen(SystemColors.GradientActiveCaption);
//按下时的边框画笔 顶层
//Pen drawPen_Pressed = new Pen(Color.SkyBlue);
Pen drawPen_Pressed = new Pen(SystemColors.GradientActiveCaption);
//边框画笔
//Pen drawPen_DropDown = new Pen(Color.FromArgb(255, 192, 111));
Pen drawPen_DropDown = new Pen(SystemColors.GradientActiveCaption);
#endregion
#region 如果不可用,把文本填充色改成灰色,图片灰掉
//如果不可用,把文本填充色改成灰色
if (this.Enabled)
{
textBrush.Color = this.ForeColor;
}
else
{
textBrush.Color = Color.LightGray;
}
#endregion
#region 顶层菜单
//如果是顶层菜单
if (!this.IsOnDropDown)
{
//如果是按下状态
if (this.Pressed)
{
e.Graphics.FillRectangle(backBrush_Pressed, fillRect);
e.Graphics.DrawRectangle(drawPen_Pressed, drawRect);
}
//如果是选中状态
else if (this.Selected)
{
e.Graphics.FillRectangle(backBrush_Selected, fillRect);
e.Graphics.DrawRectangle(drawPen, drawRect);
}
//绘制图像和文本
if (this.Image != null)
{
if (this.DisplayStyle == ToolStripItemDisplayStyle.ImageAndText)
{
if (this.Enabled)
{
e.Graphics.DrawImage(this.Image, imageRect);
}
else
{
ControlPaint.DrawImageDisabled(e.Graphics, this.Image, imageRect.X, imageRect.Y, this.BackColor);
}
e.Graphics.DrawString(this.Text, this.Font, textBrush, new Point(textLocationX + 14, textLocationY), stringFormat);
}
else if (this.DisplayStyle == ToolStripItemDisplayStyle.Image)
{
if (this.Enabled)
{
e.Graphics.DrawImage(this.Image, imageRect);
}
else
{
ControlPaint.DrawImageDisabled(e.Graphics, this.Image, imageRect.X, imageRect.Y, this.BackColor);
}
}
else if (this.DisplayStyle == ToolStripItemDisplayStyle.Text)
{
e.Graphics.DrawString(this.Text, this.Font, textBrush, new Point(textLocationX, textLocationY), stringFormat);
}
}
else
{
e.Graphics.DrawString(this.Text, this.Font, textBrush, new Point(textLocationX, textLocationY), stringFormat);
}
}
#endregion
#region 如果不是顶层菜单
//如果不是顶层菜单
else
{
#region 如果是选中或是按下状态
//如果是选中或是按下状态
if (this.Selected || this.Pressed)
{
//e.Graphics.FillRectangle(backBrush_Selected,fillRect_DropDown);
e.Graphics.FillRectangle(backBrush_Normal, fillRect_DropDown);
e.Graphics.FillRectangle(leftBrush_DropDown, 0, 0, 25, this.Height);
e.Graphics.DrawLine(leftLine, 25, 0, 25, this.Height);
//如果可用
if (this.Enabled)
{
//GraphPlotting.FillRoundRect(e.Graphics, backBrush_Selected, drawRect_DropDown, 0, 2);
//GraphPlotting.DrawRoundRect(e.Graphics, drawPen_DropDown, drawRect_DropDown, 2);
e.Graphics.FillPath(backBrush_Selected, DrawingTool.RoundedRect(drawRect_DropDown, 3));
e.Graphics.DrawPath(drawPen_DropDown, DrawingTool.RoundedRect(drawRect_DropDown, 3));
}
if (this.Image != null)
{
//子菜单这里可以写在一起
//因为不管有没有图,文本的位置是不变的
if (this.DisplayStyle == ToolStripItemDisplayStyle.ImageAndText ||
this.DisplayStyle == ToolStripItemDisplayStyle.Image
)
{
if (this.Enabled)
{
e.Graphics.DrawImage(this.Image, imageRect_DropDown);
}
else
{
ControlPaint.DrawImageDisabled(e.Graphics, this.Image, imageRect_DropDown.X, imageRect_DropDown.Y, this.BackColor);
}
}
}
e.Graphics.DrawString(this.Text, this.Font, textBrush, new Point(textLocationX_DropDown, textLocationY), stringFormat);
}
#endregion
#region 如果未选中也未按下
//如果未选中也未按下
else
{
e.Graphics.FillRectangle(backBrush_Normal, fillRect_DropDown);
e.Graphics.FillRectangle(leftBrush_DropDown, 0, 0, 25, this.Height);
e.Graphics.DrawLine(leftLine, 25, 0, 25, this.Height);
if (this.Image != null)
{
if (this.DisplayStyle == ToolStripItemDisplayStyle.ImageAndText ||
this.DisplayStyle == ToolStripItemDisplayStyle.Image)
{
if (this.Enabled)
{
e.Graphics.DrawImage(this.Image, imageRect_DropDown);
}
else
{
ControlPaint.DrawImageDisabled(e.Graphics, this.Image, imageRect_DropDown.X, imageRect_DropDown.Y, this.BackColor);
}
}
}
e.Graphics.DrawString(this.Text, this.Font, textBrush, new Point(textLocationX_DropDown, textLocationY), stringFormat);
}
#endregion
#region 处理Checked = true
// ControlPaint.draw
// MenuGlyph.
if (this.Checked)
{
ControlPaint.DrawMenuGlyph
(e.Graphics, imageLocationX_DropDown, imageLocationY_DropDown, 16, 16,
MenuGlyph.Checkmark, Color.Black, SystemColors.GradientActiveCaption);
}
#endregion
#region 如果还有子菜单,画向右箭头
if (this.DropDownItems.Count > 0)
{
ControlPaint.DrawMenuGlyph
(e.Graphics, this.Width - 20, imageLocationY_DropDown, 16, 16,
MenuGlyph.Arrow, Color.Black, Color.Transparent);
}
#endregion
}
#endregion
#region 释放资源
//释放资源
textBrush.Dispose();
backBrush_Normal.Dispose();
backBrush_Selected.Dispose();
backBrush_Pressed.Dispose();
leftBrush_DropDown.Dispose();
leftLine.Dispose();
drawPen.Dispose();
drawPen_Pressed.Dispose();
drawPen_DropDown.Dispose();
#endregion
}