public StripTabControl()
{
///添加左边的选项卡选择按钮
LeftStrip = new TabStrip();
LeftStripWidth = 100; ///左侧按键的高度的显示正常是与此按钮有无文字有关
LeftStrip.Dock = DockStyle.Left;
LeftStrip.AutoSize = false;
LeftStrip.Width = LeftStripWidth;
_mainPanel.Dock = DockStyle.Fill;
///初始化TabPages
TabPages = new RichList <StripTabPage>();
TabPages.Inserted += new EventHandler <EventArgs <StripTabPage> >(TabPages_Inserted);
TabPages.Removed += new EventHandler <EventArgs <StripTabPage> >(TabPages_Removed);
this.Controls.Add(_mainPanel);
this.Controls.Add(LeftStrip);
}
protected override void OnRenderButtonBackground(ToolStripItemRenderEventArgs e)
{
Graphics g = e.Graphics;
TabStrip tabs = e.ToolStrip as TabStrip;
TabStripButton tab = e.Item as TabStripButton;
if (tabs == null || tab == null)
{
if (currentRenderer != null)
{
currentRenderer.DrawButtonBackground(e);
}
else
{
base.OnRenderButtonBackground(e);
}
return;
}
bool selected = tab.Checked;
bool hovered = tab.Selected;
int top = 0;
int left = 0;
int width = tab.Bounds.Width - 1;
int height = tab.Bounds.Height - 1;
Rectangle drawBorder;
if (UseVS)
{
if (tabs.Orientation == Orientation.Horizontal)
{
if (!selected)
{
top = selOffset;
height -= (selOffset - 1);
}
else
{
top = 1;
}
drawBorder = new Rectangle(0, 0, width, height);
}
else
{
if (!selected)
{
left = selOffset;
width -= (selOffset - 1);
}
else
{
left = 1;
}
drawBorder = new Rectangle(0, 0, height, width);
}
using (Bitmap b = new Bitmap(drawBorder.Width, drawBorder.Height))
{
VisualStyleElement el = VisualStyleElement.Tab.TabItem.Normal;
if (selected)
{
el = VisualStyleElement.Tab.TabItem.Pressed;
}
if (hovered)
{
el = VisualStyleElement.Tab.TabItem.Hot;
}
if (!tab.Enabled)
{
el = VisualStyleElement.Tab.TabItem.Disabled;
}
if (!selected || hovered)
{
drawBorder.Width++;
}
else
{
drawBorder.Height++;
}
using (Graphics gr = Graphics.FromImage(b))
{
VisualStyleRenderer rndr = new VisualStyleRenderer(el);
rndr.DrawBackground(gr, drawBorder);
if (tabs.Orientation == Orientation.Vertical)
{
if (Mirrored)
{
b.RotateFlip(RotateFlipType.Rotate270FlipXY);
}
else
{
b.RotateFlip(RotateFlipType.Rotate270FlipNone);
}
}
else
{
if (Mirrored)
{
b.RotateFlip(RotateFlipType.RotateNoneFlipY);
}
}
if (Mirrored)
{
left = tab.Bounds.Width - b.Width - left;
top = tab.Bounds.Height - b.Height - top;
}
g.DrawImage(b, left, top);
}
}
}
else
{
if (tabs.Orientation == Orientation.Horizontal)
{
if (!selected)
{
top = selOffset;
height -= (selOffset - 1);
}
else
{
top = 1;
}
if (Mirrored)
{
left = 1;
top = 0;
}
else
{
top++;
}
width--;
}
else
{
if (!selected)
{
left = selOffset;
width--;
}
else
{
left = 1;
}
if (Mirrored)
{
left = 0;
top = 1;
}
}
height--;
drawBorder = new Rectangle(left, top, width, height);
using (GraphicsPath gp = new GraphicsPath())
{
if (Mirrored && tabs.Orientation == Orientation.Horizontal)
{
gp.AddLine(drawBorder.Left, drawBorder.Top, drawBorder.Left, drawBorder.Bottom - 2);
gp.AddArc(drawBorder.Left, drawBorder.Bottom - 3, 2, 2, 90, 90);
gp.AddLine(drawBorder.Left + 2, drawBorder.Bottom, drawBorder.Right - 2, drawBorder.Bottom);
gp.AddArc(drawBorder.Right - 2, drawBorder.Bottom - 3, 2, 2, 0, 90);
gp.AddLine(drawBorder.Right, drawBorder.Bottom - 2, drawBorder.Right, drawBorder.Top);
}
else if (!Mirrored && tabs.Orientation == Orientation.Horizontal)
{
gp.AddLine(drawBorder.Left, drawBorder.Bottom, drawBorder.Left, drawBorder.Top + 2);
gp.AddArc(drawBorder.Left, drawBorder.Top + 1, 2, 2, 180, 90);
gp.AddLine(drawBorder.Left + 2, drawBorder.Top, drawBorder.Right - 2, drawBorder.Top);
gp.AddArc(drawBorder.Right - 2, drawBorder.Top + 1, 2, 2, 270, 90);
gp.AddLine(drawBorder.Right, drawBorder.Top + 2, drawBorder.Right, drawBorder.Bottom);
}
else if (Mirrored && tabs.Orientation == Orientation.Vertical)
{
gp.AddLine(drawBorder.Left, drawBorder.Top, drawBorder.Right - 2, drawBorder.Top);
gp.AddArc(drawBorder.Right - 2, drawBorder.Top + 1, 2, 2, 270, 90);
gp.AddLine(drawBorder.Right, drawBorder.Top + 2, drawBorder.Right, drawBorder.Bottom - 2);
gp.AddArc(drawBorder.Right - 2, drawBorder.Bottom - 3, 2, 2, 0, 90);
gp.AddLine(drawBorder.Right - 2, drawBorder.Bottom, drawBorder.Left, drawBorder.Bottom);
}
else
{
gp.AddLine(drawBorder.Right, drawBorder.Top, drawBorder.Left + 2, drawBorder.Top);
gp.AddArc(drawBorder.Left, drawBorder.Top + 1, 2, 2, 180, 90);
gp.AddLine(drawBorder.Left, drawBorder.Top + 2, drawBorder.Left, drawBorder.Bottom - 2);
gp.AddArc(drawBorder.Left, drawBorder.Bottom - 3, 2, 2, 90, 90);
gp.AddLine(drawBorder.Left + 2, drawBorder.Bottom, drawBorder.Right, drawBorder.Bottom);
}
if (selected || hovered)
{
Color fill = (hovered) ? Color.WhiteSmoke : Color.White;
if (renderMode == ToolStripRenderMode.Professional)
{
fill = (hovered) ? ProfessionalColors.ButtonCheckedGradientBegin : ProfessionalColors.ButtonCheckedGradientEnd;
using (LinearGradientBrush br = new LinearGradientBrush(tab.ContentRectangle, fill, ProfessionalColors.ButtonCheckedGradientMiddle, LinearGradientMode.Vertical))
g.FillPath(br, gp);
}
else
{
using (SolidBrush br = new SolidBrush(fill))
g.FillPath(br, gp);
}
}
using (Pen p = new Pen((selected) ? ControlPaint.Dark(SystemColors.AppWorkspace) : SystemColors.AppWorkspace))
g.DrawPath(p, gp);
}
}
}
