protected override void DrawBackground(TabStrip tabStrip, Rectangle tabStripRect, Graphics g, TabColorScheme colors, Region tabsRegion, eTabStripAlignment tabAlignment, Rectangle selectedTabRect)
{
base.DrawBackground(tabStrip, tabStripRect, g, colors, tabsRegion, tabAlignment, selectedTabRect);
SmoothingMode sm = g.SmoothingMode;
g.SmoothingMode = SmoothingMode.Default;
if (!colors.TabItemBorder.IsEmpty)
{
using (Pen pen = new Pen(colors.TabItemBorder, 1))
{
if (tabAlignment == eTabStripAlignment.Top)
{
if (selectedTabRect.X > tabStripRect.Right)
selectedTabRect = Rectangle.Empty;
Rectangle r = new Rectangle(tabStripRect.X, tabStripRect.Bottom - 1, tabStripRect.Width, 2);
DisplayHelp.FillRectangle(g, r, colors.TabItemBackground, Color.Empty);
g.DrawLine(pen, r.X, r.Y, selectedTabRect.X - 1, r.Y);
g.DrawLine(pen, selectedTabRect.Right, r.Y, r.Right, r.Y);
g.DrawLine(pen, r.X, r.Y, r.X, r.Bottom);
g.DrawLine(pen, r.Right - 1, r.Y, r.Right - 1, r.Bottom);
}
else if (tabAlignment == eTabStripAlignment.Bottom)
{
if (selectedTabRect.X > tabStripRect.Right)
selectedTabRect = Rectangle.Empty;
Rectangle r = new Rectangle(tabStripRect.X, tabStripRect.Y, tabStripRect.Width, 1);
DisplayHelp.FillRectangle(g, r, colors.TabItemBackground, Color.Empty);
g.DrawLine(pen, r.X, r.Bottom - 1, selectedTabRect.X - 1, r.Bottom - 1);
g.DrawLine(pen, selectedTabRect.Right, r.Bottom - 1, r.Right, r.Bottom - 1);
g.DrawLine(pen, r.X, r.Y, r.X, r.Bottom - 1);
g.DrawLine(pen, r.Right - 1, r.Y, r.Right - 1, r.Bottom - 1);
}
else if (tabAlignment == eTabStripAlignment.Left)
{
if (selectedTabRect.Y > tabStripRect.Bottom)
selectedTabRect = Rectangle.Empty;
Rectangle r = new Rectangle(tabStripRect.Right - 1, tabStripRect.Y, 1, tabStripRect.Height);
DisplayHelp.FillRectangle(g, r, colors.TabItemBackground, Color.Empty);
g.DrawLine(pen, r.X, r.Y, r.X, selectedTabRect.Y - 1);
g.DrawLine(pen, r.X, selectedTabRect.Bottom, r.X, r.Bottom);
g.DrawLine(pen, r.X, r.Y, r.Right, r.Y);
g.DrawLine(pen, r.X, r.Bottom - 1, r.Right, r.Bottom - 1);
}
else if (tabAlignment == eTabStripAlignment.Right)
{
if (selectedTabRect.Y > tabStripRect.Bottom)
selectedTabRect = Rectangle.Empty;
Rectangle r = new Rectangle(tabStripRect.X, tabStripRect.Y, 1, tabStripRect.Height);
DisplayHelp.FillRectangle(g, r, colors.TabItemBackground, Color.Empty);
g.DrawLine(pen, r.Right - 1, r.Y, r.Right - 1, selectedTabRect.Y - 1);
g.DrawLine(pen, r.Right - 1, selectedTabRect.Bottom, r.Right - 1, r.Bottom);
g.DrawLine(pen, r.X, r.Y, r.Right - 1, r.Y);
g.DrawLine(pen, r.X, r.Bottom - 1, r.Right - 1, r.Bottom - 1);
}
}
}
g.SmoothingMode = sm;
}
protected virtual void DrawBackground(TabStrip tabStrip, Rectangle tabStripRect, Graphics g, TabColorScheme colors, Region tabsRegion, eTabStripAlignment tabAlignment, Rectangle selectedTabRect)
{
if(colors.TabBackground2.IsEmpty)
{
if (!colors.TabBackground.IsEmpty)
{
using (SolidBrush brush = new SolidBrush(colors.TabBackground))
g.FillRegion(brush, tabsRegion);
}
}
else
{
using(LinearGradientBrush brush=BarFunctions.CreateLinearGradientBrush(tabsRegion.GetBounds(g),colors.TabBackground,colors.TabBackground2,colors.TabBackgroundGradientAngle))
g.FillRegion(brush, tabsRegion);
}
}
protected override void DrawBackground(TabStrip tabStrip, Rectangle tabStripRect, Graphics g, TabColorScheme colors, Region tabsRegion, eTabStripAlignment tabAlignment, Rectangle selectedTabRect)
{
base.DrawBackground(tabStrip, tabStripRect, g, colors, tabsRegion, tabAlignment, selectedTabRect);
SmoothingMode sm = g.SmoothingMode;
g.SmoothingMode = SmoothingMode.Default;
using (Pen pen = new Pen(colors.TabItemBorder, 1))
{
int tabExtension = 9;
if (selectedTabRect.IsEmpty)
tabExtension = 0;
Color tabItemSelectedColor2 = colors.TabItemSelectedBackground2;
if (tabStrip.SelectedTab != null)
{
TabColors tc = tabStrip.GetTabColors(tabStrip.SelectedTab);
tabItemSelectedColor2 = tc.BackColor2;
}
if (tabAlignment == eTabStripAlignment.Top)
{
if (selectedTabRect.X > tabStripRect.Right || selectedTabRect.Bottom < tabStripRect.Bottom - 4)
{
selectedTabRect = Rectangle.Empty;
tabExtension = 0;
}
Rectangle r = new Rectangle(tabStripRect.X, tabStripRect.Bottom - 1, tabStripRect.Width, 1);
DisplayHelp.FillRectangle(g, r, tabItemSelectedColor2, Color.Empty);
g.DrawLine(pen, r.X, r.Y, selectedTabRect.X, r.Y);
g.DrawLine(pen, selectedTabRect.Right + tabExtension, r.Y, r.Right, r.Y);
g.DrawLine(pen, r.X, r.Y, r.X, r.Bottom);
g.DrawLine(pen, r.Right - 1, r.Y, r.Right - 1, r.Bottom);
}
else if (tabAlignment == eTabStripAlignment.Bottom)
{
if (selectedTabRect.X > tabStripRect.Right || selectedTabRect.Y>4)
{
selectedTabRect = Rectangle.Empty;
tabExtension = 0;
}
Rectangle r = new Rectangle(tabStripRect.X, tabStripRect.Y, tabStripRect.Width, 1);
DisplayHelp.FillRectangle(g, r, tabItemSelectedColor2, Color.Empty);
g.DrawLine(pen, r.X, r.Bottom -1, selectedTabRect.X, r.Bottom - 1);
g.DrawLine(pen, selectedTabRect.Right + tabExtension, r.Bottom - 1, r.Right, r.Bottom - 1);
g.DrawLine(pen, r.X, r.Y, r.X, r.Bottom -1);
g.DrawLine(pen, r.Right - 1, r.Y, r.Right - 1, r.Bottom - 1);
}
else if (tabAlignment == eTabStripAlignment.Left)
{
if (selectedTabRect.Y > tabStripRect.Bottom || selectedTabRect.Right < tabStripRect.Right - 4)
{
selectedTabRect = Rectangle.Empty;
tabExtension = 0;
}
Rectangle r = new Rectangle(tabStripRect.Right -1, tabStripRect.Y, 1, tabStripRect.Height);
DisplayHelp.FillRectangle(g, r, tabItemSelectedColor2, Color.Empty);
g.DrawLine(pen, r.X, r.Y, r.X, selectedTabRect.Y);
g.DrawLine(pen, r.X, selectedTabRect.Bottom + tabExtension, r.X, r.Bottom);
g.DrawLine(pen, r.X, r.Y, r.Right, r.Y);
g.DrawLine(pen, r.X, r.Bottom - 1, r.Right, r.Bottom - 1);
}
else if (tabAlignment == eTabStripAlignment.Right)
{
if (selectedTabRect.Y > tabStripRect.Bottom || selectedTabRect.X>4)
{
selectedTabRect = Rectangle.Empty;
tabExtension = 0;
}
Rectangle r = new Rectangle(tabStripRect.X, tabStripRect.Y, 1, tabStripRect.Height);
DisplayHelp.FillRectangle(g, r, tabItemSelectedColor2, Color.Empty);
g.DrawLine(pen, r.Right - 1, r.Y, r.Right - 1, selectedTabRect.Y);
g.DrawLine(pen, r.Right - 1, selectedTabRect.Bottom + tabExtension, r.Right - 1, r.Bottom);
g.DrawLine(pen, r.X, r.Y, r.Right, r.Y);
g.DrawLine(pen, r.X, r.Bottom - 1, r.Right, r.Bottom - 1);
}
}
g.SmoothingMode = sm;
}
protected override void DrawBackground(TabStrip tabStrip, Rectangle tabStripRect, Graphics g, TabColorScheme colors, Region tabsRegion, eTabStripAlignment tabAlignment, Rectangle selectedTabRect)
{
base.DrawBackground(tabStrip, tabStripRect,g,colors,tabsRegion,tabAlignment, selectedTabRect);
if(!colors.TabItemBorder.IsEmpty)
{
using(Pen pen=new Pen(colors.TabItemBorder,1))
{
if(tabAlignment==eTabStripAlignment.Bottom)
{
g.DrawLine(pen,tabStripRect.X,tabStripRect.Y+1,tabStripRect.Right,tabStripRect.Y+1);
}
else if(tabAlignment==eTabStripAlignment.Left)
{
g.DrawLine(pen,tabStripRect.Right-1,tabStripRect.Y,tabStripRect.Right-1,tabStripRect.Bottom);
}
else if(tabAlignment==eTabStripAlignment.Right)
{
g.DrawLine(pen,tabStripRect.X,tabStripRect.Y,tabStripRect.X,tabStripRect.Bottom);
}
else if(tabAlignment==eTabStripAlignment.Top)
{
g.DrawLine(pen,tabStripRect.X,tabStripRect.Bottom-1,tabStripRect.Right,tabStripRect.Bottom-1);
}
}
}
}
private void DrawBackgroundInternal(Rectangle tabStripRect, Graphics g, TabColorScheme colors, Region tabsRegion, eTabStripAlignment tabAlignment, Rectangle tabItemsBounds)
{
int cornerDiameter=3;
Rectangle br;
GraphicsPath path=new GraphicsPath();
GraphicsPath backPath=null;
if(!tabItemsBounds.IsEmpty)
{
if(tabAlignment==eTabStripAlignment.Top)
{
tabItemsBounds.Width+=3;
br=new Rectangle(tabStripRect.X,tabItemsBounds.Y+1,(tabItemsBounds.Right>tabStripRect.Right?tabStripRect.Width:tabItemsBounds.Right),tabItemsBounds.Height-1);
path.AddLine(br.X,br.Bottom,br.X,br.Top+cornerDiameter);
ArcData ad=GetCornerArc(br,cornerDiameter,eCornerArc.TopLeft);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.X+cornerDiameter,br.Y,br.Right-cornerDiameter,br.Y);
ad=GetCornerArc(br,cornerDiameter,eCornerArc.TopRight);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.Right,br.Y+cornerDiameter,br.Right,br.Bottom);
backPath=path.Clone() as GraphicsPath;
backPath.CloseAllFigures();
if(tabItemsBounds.Right<tabStripRect.Right)
path.AddLine(br.Right,br.Bottom,tabStripRect.Right,br.Bottom);
}
else if(tabAlignment==eTabStripAlignment.Bottom)
{
tabItemsBounds.Width+=3;
br=new Rectangle(tabStripRect.X,tabStripRect.Y,(tabItemsBounds.Right>tabStripRect.Right?tabStripRect.Width:tabItemsBounds.Right),tabItemsBounds.Height-1);
path.AddLine(br.Right,br.Y,br.Right,br.Bottom-cornerDiameter);
ArcData ad=GetCornerArc(br,cornerDiameter,eCornerArc.BottomRight);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.Right-cornerDiameter,br.Bottom,br.X+cornerDiameter,br.Bottom);
ad=GetCornerArc(br,cornerDiameter,eCornerArc.BottomLeft);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.X,br.Bottom-cornerDiameter,br.X,br.Y);
backPath=path.Clone() as GraphicsPath;
backPath.CloseAllFigures();
if(tabItemsBounds.Right<tabStripRect.Right)
path.AddLine(br.Right,br.Y,tabStripRect.Right,br.Y);
}
else if(tabAlignment==eTabStripAlignment.Left)
{
tabItemsBounds.Height+=3;
br=new Rectangle(tabItemsBounds.X+1,tabStripRect.Y,tabItemsBounds.Width-1,(tabItemsBounds.Bottom>tabStripRect.Bottom?tabStripRect.Height:tabItemsBounds.Bottom));
path.AddLine(br.Right-1,br.Bottom,br.X+cornerDiameter,br.Bottom);
ArcData ad=GetCornerArc(br,cornerDiameter,eCornerArc.BottomLeft);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.X,br.Bottom-cornerDiameter,br.X,br.Y+cornerDiameter);
ad=GetCornerArc(br,cornerDiameter,eCornerArc.TopLeft);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.X+cornerDiameter,br.Y,br.Right-1,br.Y);
backPath=path.Clone() as GraphicsPath;
backPath.CloseAllFigures();
if(tabItemsBounds.Bottom<tabStripRect.Bottom)
path.AddLine(br.Right-1,br.Bottom,br.Right-1,tabStripRect.Bottom);
}
else if(tabAlignment==eTabStripAlignment.Right)
{
tabItemsBounds.Height+=3;
br=new Rectangle(tabStripRect.X,tabStripRect.Y,tabItemsBounds.Width-1,(tabItemsBounds.Bottom>tabStripRect.Bottom?tabStripRect.Height:tabItemsBounds.Bottom));
path.AddLine(br.X,br.Y,br.Right-cornerDiameter,br.Y);
ArcData ad=GetCornerArc(br,cornerDiameter,eCornerArc.TopRight);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.Right,br.Y+cornerDiameter,br.Right,br.Bottom-cornerDiameter);
ad=GetCornerArc(br,cornerDiameter,eCornerArc.BottomRight);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.Right-cornerDiameter,br.Bottom,br.X,br.Bottom);
backPath=path.Clone() as GraphicsPath;
backPath.CloseAllFigures();
if(tabItemsBounds.Bottom<tabStripRect.Bottom)
path.AddLine(br.X,br.Bottom,br.X,tabStripRect.Bottom);
}
}
else
{
path.AddRectangle(tabStripRect);
}
// Paint background of the tab control
//g.SetClip(backPath,CombineMode.Replace);
//g.SetClip(tabsRegion,CombineMode.Exclude);
if(colors.TabPanelBackground2.IsEmpty)
{
if(!colors.TabPanelBackground.IsEmpty)
{
using(SolidBrush brush=new SolidBrush(colors.TabPanelBackground))
g.FillPath(brush,path);
}
}
else
{
using(SolidBrush brush=new SolidBrush(Color.White))
g.FillPath(brush,path);
using(LinearGradientBrush brush=CreateTabGradientBrush(tabStripRect,colors.TabPanelBackground,colors.TabPanelBackground2,colors.TabPanelBackgroundGradientAngle))
g.FillPath(brush,path);
}
if(!colors.TabBorder.IsEmpty)
{
path.CloseAllFigures();
using(Pen pen=new Pen(colors.TabBorder,1))
g.DrawPath(pen,path);
}
if (backPath != null)
backPath.Dispose();
if (path != null)
path.Dispose();
}
/// <summary>
/// Default constructor.
/// </summary>
public TabStrip()
{
if(!ColorFunctions.ColorsLoaded)
{
NativeFunctions.RefreshSettings();
NativeFunctions.OnDisplayChange();
ColorFunctions.LoadColors();
}
m_Tabs=new TabsCollection(this);
this.SetStyle(ControlStyles.Selectable,true);
this.SetStyle(ControlStyles.UserPaint,true);
this.SetStyle(ControlStyles.Opaque,true);
this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
this.SetStyle(DisplayHelp.DoubleBufferFlag,true);
this.SetStyle(ControlStyles.AllPaintingInWmPaint,true);
this.SetStyle(ControlStyles.ResizeRedraw,true);
m_TabSystemBox=new TabSystemBox(this);
m_TabSystemBox.Back+=new EventHandler(this.OnTabBack);
m_TabSystemBox.Close+=new EventHandler(this.OnTabClose);
m_TabSystemBox.Forward+=new EventHandler(this.OnTabForward);
m_ColorScheme=new TabColorScheme(m_Style);
m_ColorScheme.ColorChanged+=new EventHandler(this.ColorSchemeChanged);
StyleManager.Register(this);
}
protected override void DrawBackground(TabStrip tabStrip, Rectangle tabStripRect, Graphics g, TabColorScheme colors, Region tabsRegion, eTabStripAlignment tabAlignment, Rectangle selectedTabRect)
{
int cornerDiameter=5;
Rectangle br;
GraphicsPath path=new GraphicsPath();
if(tabAlignment==eTabStripAlignment.Top)
{
br=new Rectangle(tabStripRect.X,tabStripRect.Y+tabStripRect.Height/2,tabStripRect.Width-1,tabStripRect.Height-tabStripRect.Height/2);
path.AddLine(br.X,br.Bottom,br.X,br.Top+cornerDiameter);
ArcData ad=GetCornerArc(br,cornerDiameter,eCornerArc.TopLeft);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.X+cornerDiameter,br.Y,br.Right-cornerDiameter,br.Y);
ad=GetCornerArc(br,cornerDiameter,eCornerArc.TopRight);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.Right,br.Y+cornerDiameter,br.Right,br.Bottom);
}
else if(tabAlignment==eTabStripAlignment.Bottom)
{
br=new Rectangle(tabStripRect.X,tabStripRect.Y,tabStripRect.Width-1,tabStripRect.Height/2);
path.AddLine(br.Right,br.Y,br.Right,br.Bottom-cornerDiameter);
ArcData ad=GetCornerArc(br,cornerDiameter,eCornerArc.BottomRight);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.Right-cornerDiameter,br.Bottom,br.X+cornerDiameter,br.Bottom);
ad=GetCornerArc(br,cornerDiameter,eCornerArc.BottomLeft);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.X,br.Bottom-cornerDiameter,br.X,br.Y);
}
else if(tabAlignment==eTabStripAlignment.Left)
{
br=new Rectangle(tabStripRect.X+tabStripRect.Width/2,tabStripRect.Y,tabStripRect.Width/2+1,tabStripRect.Height-1);
path.AddLine(br.Right,br.Bottom,br.X+cornerDiameter,br.Bottom);
ArcData ad=GetCornerArc(br,cornerDiameter,eCornerArc.BottomLeft);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.X,br.Bottom-cornerDiameter,br.X,br.Y+cornerDiameter);
ad=GetCornerArc(br,cornerDiameter,eCornerArc.TopLeft);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.X+cornerDiameter,br.Y,br.Right,br.Y);
}
else if(tabAlignment==eTabStripAlignment.Right)
{
br=new Rectangle(tabStripRect.X,tabStripRect.Y,tabStripRect.Width/2,tabStripRect.Height-1);
path.AddLine(br.X,br.Y,br.Right-cornerDiameter,br.Y);
ArcData ad=GetCornerArc(br,cornerDiameter,eCornerArc.TopRight);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.Right,br.Y+cornerDiameter,br.Right,br.Bottom-cornerDiameter);
ad=GetCornerArc(br,cornerDiameter,eCornerArc.BottomRight);
path.AddArc(ad.X,ad.Y,ad.Width,ad.Height,ad.StartAngle,ad.SweepAngle);
path.AddLine(br.Right-cornerDiameter,br.Bottom,br.X,br.Bottom);
}
// Paint background of the tab control
GraphicsPath backPath=path.Clone() as GraphicsPath;
backPath.CloseAllFigures();
g.SetClip(backPath,CombineMode.Replace);
g.SetClip(tabsRegion,CombineMode.Exclude);
g.Clear(colors.TabPanelBackground);
g.ResetClip();
backPath.Dispose();
g.SetClip(tabsRegion,CombineMode.Exclude);
using(Pen pen=new Pen(colors.TabBorder,1))
g.DrawPath(pen,path);
path.Dispose();
g.ResetClip();
}