绘制菜单

 

 1Image ItemIcon ;
 2        public   void   DrawIcon(Graphics   g,   Image   icon,   Rectangle   bounds,   bool   selected,   bool   enabled,   bool   ischecked)   
 3        {   
 4            int   iconTop   =   bounds.Top  ;   
 5            int   iconLeft   =   bounds.Left  ;   
 6            if   (enabled)   
 7            {   
 8                if   (selected)   
 9                {   
10                    ControlPaint.DrawImageDisabled(g,   icon,   iconLeft   +   1,   iconTop,   Color.Black);   
11                    g.DrawImage(icon,   iconLeft,   iconTop-1);   
12                }     
13                else   
14                {   
15                    g.DrawImage(icon,   iconLeft   +   1,   iconTop);   
16                }   
17            }     
18            else   
19            {   
20                ControlPaint.DrawImageDisabled(g,   icon,   iconLeft   +   1,   iconTop,   SystemColors.HighlightText);   
21            }   
22        }   
23        protected override void OnDrawItem(DrawItemEventArgs e)
24        {
25            bool   selected   =   (e.State   &   DrawItemState.Selected)   >   0;   
26            //bool   toplevel   =   (Parent   ==   Parent.GetMainMenu());   
27            //bool   hasicon     =   Icon   !=   null;   
28            bool   enabled   =   Enabled;   
29            try
30            {
31
32                e.Graphics.FillRectangle(BackColor, e.Bounds.X, e.Bounds.Y, e.Bounds.Width+1, e.Bounds.Height+1);
33                e.Graphics.FillRectangle(IconBackColor, e.Bounds.X, e.Bounds.Y, iconSize, e.Bounds.Height+1);
34                
35                if(base.Text == "-")
36                {
37                    e.Graphics.FillRectangle(new SolidBrush(MenuSplitColor), e.Bounds.X+iconSize, 
38                        e.Bounds.Y+2, e.Bounds.Width-iconSize, 1);
39                }
40                else
41                {
42                    if(ItemIcon != null)
43                    {
44                        int y = e.Bounds.Y + e.Bounds.Height - ItemIcon.Height  -1 ;
45                        Rectangle _rectIcon = new Rectangle(e.Bounds.X+1,y,ItemIcon.Width,ItemIcon.Height);
46                            //e.Graphics.DrawIconUnstretched(ItemIcon, _rectIcon);
47                        DrawIcon(e.Graphics,ItemIcon,_rectIcon,selected,enabled,this.Checked);
48                    }
49
50                    Brush strColor = TextColor;
51                    if(!enabled)
52                        strColor = new  SolidBrush ( SystemColors.GrayText);
53                    //int fontWidth = Convert.ToInt32(e.Graphics.MeasureString(base.Text, TextFont).Height);
54                    //fontWidth = e.Bounds.Y /2 - fontWidth /2 + e.Bounds.Y;
55
56                    e.Graphics.DrawString(base.Text, e.Font, strColor, e.Bounds.X+iconSize +2, e.Bounds.Y + 5);
57                    
58                    if(selected)
59                    {
60                        //
61                        
62                        if(enabled)
63                        {
64                            e.Graphics.FillRectangle(SelectedColor, e.Bounds);
65                            e.Graphics.DrawString(base.Text, e.Font, new  SolidBrush (MenuTextSelectedColor), e.Bounds.X+iconSize +2, e.Bounds.Y+4);
66                        }
67                        e.Graphics.DrawRectangle(SelectedBroder, e.Bounds.X, e.Bounds.Y, e.Bounds.Width-1, e.Bounds.Height-1);
68                    }
69                    
70                }
71            }
72            catch(Exception _ex)
73            {
74            }
75        }
76
77        protected override void OnMeasureItem(MeasureItemEventArgs e)
78        {
79            try
80            {
81                if(base.Text == "-")
82                {
83                    e.ItemHeight = 4;
84                }
85                else
86                {
87                    e.ItemHeight = 22;
88                    e.ItemWidth = Convert.ToInt32(e.Graphics.MeasureString(this.Text, TextFont).Width)+40;
89                }
90            }
91            catch(Exception x)
92            {
93                System.Diagnostics.Trace.WriteLine(x.ToString(), "WpmMenuItem ("+this.Text+"): Measuring ");
94            }
95        }