306 lines
8.3 KiB
C#

using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Text;
namespace DevComponents.DotNetBar
{
/// <summary>
/// Represents class that provide display support for simple tabs.
/// </summary>
public class SimpleTabDisplay
{
#region Private Variables
private int m_SideWidth=8;
private int m_TextTopOffset=2;
#endregion
#region Internal Implementation
/// <summary>
/// Default constructor.
/// </summary>
public SimpleTabDisplay()
{
}
public virtual void Paint(Graphics g, ISimpleTab[] tabs)
{
int iSelected=-1;
for(int i=tabs.Length-1;i>=0;i--)
{
if(tabs[i].IsSelected)
{
iSelected=i;
continue;
}
PaintTab(g,tabs[i]);
}
if(iSelected!=-1)
PaintTab(g,tabs[iSelected]);
}
protected virtual void PaintTab(Graphics g, ISimpleTab tab)
{
TabColors c=GetTabColors(tab);
Rectangle r=tab.DisplayRectangle;
r.Width+=(m_SideWidth*2);
r.X-=m_SideWidth;
GraphicsPath path=this.GetTabPath(r,tab.TabAlignment);
if(c.BackColor2.IsEmpty)
{
using(SolidBrush brush=new SolidBrush(c.BackColor))
g.FillPath(brush,path);
}
else
{
using(LinearGradientBrush brush=BarFunctions.CreateLinearGradientBrush(tab.DisplayRectangle,c.BackColor,c.BackColor2,c.BackColorGradientAngle))
g.FillPath(brush,path);
}
r.Width--;
r.Height--;
//Rectangle r=tab.DisplayRectangle;
// r.Width--;
// r.Height--;
if(!c.BorderColor.IsEmpty)
{
using(Pen pen=new Pen(c.BorderColor,1))
{
Line l=GetLeftLine(r,tab.TabAlignment);
g.DrawLine(pen,l.X1,l.Y1,l.X2,l.Y2);
l=GetRightLine(r,tab.TabAlignment);
g.DrawLine(pen,l.X1,l.Y1,l.X2,l.Y2);
if(tab.TabAlignment==eTabStripAlignment.Top)
{
l=GetTopLine(r,tab.TabAlignment);
g.DrawLine(pen,l.X1,l.Y1,l.X2,l.Y2);
}
else if(tab.TabAlignment==eTabStripAlignment.Bottom)
{
l=GetBottomLine(r,tab.TabAlignment);
g.DrawLine(pen,l.X1,l.Y1,l.X2,l.Y2);
}
}
}
if(!c.LightBorderColor.IsEmpty)
{
using(Pen pen=new Pen(c.LightBorderColor,1))
{
Line l=GetLeftLine(r,tab.TabAlignment);
g.DrawLine(pen,l.X1,l.Y1,l.X2,l.Y2);
if(tab.TabAlignment==eTabStripAlignment.Top)
{
l=GetTopLine(r,tab.TabAlignment);
g.DrawLine(pen,l.X1,l.Y1,l.X2,l.Y2);
}
else if(tab.TabAlignment==eTabStripAlignment.Bottom)
{
l=GetBottomLine(r,tab.TabAlignment);
g.DrawLine(pen,l.X1,l.Y1,l.X2,l.Y2);
}
}
}
if(!c.DarkBorderColor.IsEmpty)
{
using(Pen pen=new Pen(c.DarkBorderColor,1))
{
Line l=GetRightLine(r,tab.TabAlignment);
g.DrawLine(pen,l.X1,l.Y1,l.X2,l.Y2);
}
}
DrawTabText(g,tab,GetTextRectangle(tab),c);
// if(tab is BubbleBarTab && ((BubbleBarTab)tab).Focus)
// {
// Region clip=g.Clip;
// g.ResetClip();
// r=tab.DisplayRectangle;
// r.Width+=(m_SideWidth*2);
// r.X-=m_SideWidth;
// r.Inflate(1,1);
// DesignTime.DrawDesignTimeSelection(g,r,Color.Navy);
// g.Clip=clip;
// }
}
private TabColors GetTabColors(ISimpleTab tab)
{
TabColors c=new TabColors();
c.BackColor=tab.BackColor;
c.BackColor2=tab.BackColor2;
c.BackColorGradientAngle=tab.BackColorGradientAngle;
c.BorderColor=tab.BorderColor;
c.DarkBorderColor=tab.DarkBorderColor;
c.LightBorderColor=tab.LightBorderColor;
c.TextColor=tab.TextColor;
if(tab.IsSelected)
{
if(tab is BubbleBarTab && ((BubbleBarTab)tab).Parent!=null)
{
TabColors sel=((BubbleBarTab)tab).Parent.SelectedTabColors;
if(!sel.BackColor.IsEmpty)
c.BackColor=sel.BackColor;
if(!sel.BackColor2.IsEmpty)
{
c.BackColor2=sel.BackColor2;
c.BackColorGradientAngle=sel.BackColorGradientAngle;
}
if(!sel.BorderColor.IsEmpty)
c.BorderColor=sel.BorderColor;
if(!sel.DarkBorderColor.IsEmpty)
c.DarkBorderColor=sel.DarkBorderColor;
if(!sel.LightBorderColor.IsEmpty)
c.LightBorderColor=sel.LightBorderColor;
if(!sel.TextColor.IsEmpty)
c.TextColor=sel.TextColor;
}
}
if(tab.IsMouseOver)
{
if(tab is BubbleBarTab && ((BubbleBarTab)tab).Parent!=null)
{
TabColors sel=((BubbleBarTab)tab).Parent.MouseOverTabColors;
if(!sel.BackColor.IsEmpty)
c.BackColor=sel.BackColor;
if(!sel.BackColor2.IsEmpty)
{
c.BackColor2=sel.BackColor2;
c.BackColorGradientAngle=sel.BackColorGradientAngle;
}
if(!sel.BorderColor.IsEmpty)
c.BorderColor=sel.BorderColor;
if(!sel.DarkBorderColor.IsEmpty)
c.DarkBorderColor=sel.DarkBorderColor;
if(!sel.LightBorderColor.IsEmpty)
c.LightBorderColor=sel.LightBorderColor;
if(!sel.TextColor.IsEmpty)
c.TextColor=sel.TextColor;
}
}
return c;
}
protected virtual Rectangle GetTextRectangle(ISimpleTab tab)
{
Rectangle rText=tab.DisplayRectangle;
rText.Y+=m_TextTopOffset;
rText.Height-=m_TextTopOffset;
//rText.X+=m_SideWidth/2;
//rText.Width-=m_SideWidth;
return rText;
}
protected virtual GraphicsPath GetTabPath(Rectangle r,eTabStripAlignment align)
{
GraphicsPath path=new GraphicsPath();
Line l=GetLeftLine(r,align);
path.AddLine(l.X1,l.Y1,l.X2,l.Y2);
l=GetTopLine(r,align);
path.AddLine(l.X1,l.Y1,l.X2,l.Y2);
l=GetRightLine(r,align);
path.AddLine(l.X1,l.Y1,l.X2,l.Y2);
l=GetBottomLine(r,align);
path.AddLine(l.X1,l.Y1,l.X2,l.Y2);
path.CloseAllFigures();
return path;
}
protected virtual Line GetLeftLine(Rectangle r,eTabStripAlignment align)
{
if(align==eTabStripAlignment.Top)
return new Line(r.X,r.Bottom,r.X+m_SideWidth,r.Y);
else if(align==eTabStripAlignment.Bottom)
return new Line(r.X+m_SideWidth,r.Bottom,r.X,r.Y);
return null;
}
protected virtual Line GetRightLine(Rectangle r,eTabStripAlignment align)
{
if(align==eTabStripAlignment.Top)
return new Line(r.Right-m_SideWidth,r.Y,r.Right,r.Bottom);
else if(align==eTabStripAlignment.Bottom)
return new Line(r.Right,r.Y,r.Right-m_SideWidth,r.Bottom);
return null;
}
protected virtual Line GetTopLine(Rectangle r,eTabStripAlignment align)
{
if(align==eTabStripAlignment.Top)
return new Line(r.X+m_SideWidth,r.Y,r.Right-m_SideWidth,r.Y);
else if(align==eTabStripAlignment.Bottom)
return new Line(r.X,r.Y,r.Right,r.Y);
return null;
}
protected virtual Line GetBottomLine(Rectangle r,eTabStripAlignment align)
{
if(align==eTabStripAlignment.Top)
return new Line(r.X,r.Bottom,r.Right,r.Bottom);
else if(align==eTabStripAlignment.Bottom)
return new Line(r.Right-m_SideWidth,r.Bottom,r.X+m_SideWidth,r.Bottom);
return null;
}
protected virtual void DrawTabText(Graphics g, ISimpleTab tab, Rectangle rText, TabColors c)
{
eTextFormat strFormat=GetStringFormat();
Font font=tab.GetTabFont();
if(tab.TabAlignment==eTabStripAlignment.Left || tab.TabAlignment==eTabStripAlignment.Right)
{
g.RotateTransform(90);
rText=new Rectangle(rText.Top,-rText.Right,rText.Height,rText.Width);
}
if (tab.TabAlignment == eTabStripAlignment.Left || tab.TabAlignment == eTabStripAlignment.Right)
TextDrawing.DrawStringLegacy(g, tab.Text, font, c.TextColor, rText, strFormat);
else
TextDrawing.DrawString(g,tab.Text,font,c.TextColor,rText,strFormat);
if(tab.TabAlignment==eTabStripAlignment.Left || tab.TabAlignment==eTabStripAlignment.Right)
g.ResetTransform();
}
protected virtual eTextFormat GetStringFormat()
{
return eTextFormat.HorizontalCenter | eTextFormat.VerticalCenter |
eTextFormat.SingleLine | eTextFormat.EndEllipsis;
//StringFormat strFormat=BarFunctions.CreateStringFormat(); //new StringFormat(StringFormat.GenericDefault);
//strFormat.FormatFlags=strFormat.FormatFlags | StringFormatFlags.NoWrap;
//strFormat.Trimming=StringTrimming.EllipsisCharacter;
//strFormat.LineAlignment=StringAlignment.Center;
//strFormat.Alignment=StringAlignment.Center;
//strFormat.HotkeyPrefix=HotkeyPrefix.Show;
//return strFormat;
}
#endregion
#region Line class
protected class Line
{
public int X1=0;
public int Y1=0;
public int X2=0;
public int Y2=0;
public Line(int x1, int y1, int x2, int y2)
{
this.X1=x1;
this.Y1=y1;
this.X2=x2;
this.Y2=y2;
}
}
#endregion
}
}