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