Custom Component UITypeEditor

Using System;
Using System.ComponentModel;
Using System.Drawing;
Using System.Drawing.Design;
Using System.Windows.Forms;
Using System.Windows.Forms.Design; namespace Mylib {//This uitypeeditor can is associated with Int32, Double and single//properties to provide a
    Design-mode Angle Selection interface. [System.Security.Permissions.PermissionSet (System.Security.Permissions.SecurityAction.Demand, Name = "FullTrust
        ')] public class AngleEditor:System.Drawing.Design.UITypeEditor {public Angleeditor () { }//Indicates whether the UITypeEditor provides a form-based (modal) dialog,//Drop down dialog, or no
        UI outside of the Properties window. public override System.Drawing.Design.UITypeEditorEditStyle GetEditStyle (
        System.ComponentModel.ITypeDescriptorContext context) {return uitypeeditoreditstyle.dropdown;
        }//Displays the UI for value selection. public override ObjecT EditValue (System.ComponentModel.ITypeDescriptorContext context, System.IServiceProvider Provider, object value)
            {//Return the value if ' is ' not ' of type Int32, Double and single. if (value. GetType ()!= typeof (Double) && value. GetType ()!= typeof (float) && value.
            GetType ()!= typeof (int)) return value;
            Uses the IWindowsFormsEditorService to display A//Drop-down UI in the Properties window. IWindowsFormsEditorService edsvc = (iwindowsformseditorservice) provider.
            GetService (typeof (IWindowsFormsEditorService));
                if (edsvc!= null) {//Display a angle selection control and retrieve the value.
                Anglecontrol Anglecontrol = new Anglecontrol (double) value;
                Edsvc.dropdowncontrol (Anglecontrol);
                Return the value in the Appropraite data format. if (value. GetType () = = typeof (double) return anglecontrol.angle; else if (value.
                GetType () = = typeof (float)) return (float) anglecontrol.angle; else if (value.
            GetType () = = typeof (int)) return (int) Anglecontrol.angle;
        return value;
        }//Draws a representation of the property ' s value. public override void PaintValue (System.Drawing.Design.PaintValueEventArgs e) {int normalx = (e.bounds .
            WIDTH/2);
            int normaly = (E.BOUNDS.HEIGHT/2);
            Fill Background and Ellipse and center point.
            E.graphics.fillrectangle (New SolidBrush (Color.darkblue), e.bounds.x, E.bounds.y, E.bounds.width, e.Bounds.Height); E.graphics.fillellipse (New SolidBrush (Color.White), e.bounds.x + 1, E.bounds.y + 1, e.bounds.width-3, E.Bounds.Hei
            GHT-3); E.graphics.fillellipse (New SolidBrush (Color.slategray), Normalx + e.bounds.x-1, normaly + E.bounds.y-1, 3, 3);
            Draw line along the current angle.
            Double radians = (double) e.value * Math.PI)/(double) 180; E.graphics.drawline (New Pen (New SolidBrush (color.red), 1), Normalx + e.bounds.x, normaly + e.bounds.y, e.b Ounds. X + (normalx + (int) (double) normalx * Math.Cos (radians)), E.bounds.y + (normaly + (int) (double) normaly
        * Math.sin (radians)));
        }//Indicates whether the UITypeEditor supports painting A//representation of a property ' s value.
            public override bool GetPaintValueSupported (System.ComponentModel.ITypeDescriptorContext context) {
        return true;
    }//provides a user interface for adjusting a angle value.
        Internal class AngleControl:System.Windows.Forms.UserControl {//Stores the angle.
        public double angle;
        Stores the rotation offset.
        private int rotation = 0; ControL State Tracking variables.
        private int dbx =-10;
        private int dby =-10;
        private int Overbutton =-1;
            Public Anglecontrol (double initial_angle) {this.angle = Initial_angle; This.
        SetStyle (Controlstyles.allpaintinginwmpaint, true);  } protected override void OnPaint (System.Windows.Forms.PaintEventArgs e) {//Set angle Origin
            Point at Center for control. int Originx = (this.
            WIDTH/2); int originy = (this.
            HEIGHT/2);
            Fill Background and Ellipse and center point. E.graphics.fillrectangle (New SolidBrush (Color.darkblue), 0, 0, this. Width, this.
            Height); E.graphics.fillellipse (New SolidBrush (Color.White), 1, 1, this. Width-3, this.
            HEIGHT-3);
            E.graphics.fillellipse (New SolidBrush (Color.slategray), OriginX-1, OriginY-1, 3, 3);
            Draw angle Markers.
 int startangle = (270-rotation)% 360;           E.graphics.drawstring (startangle. ToString (), New Font ("Arial", 8), New SolidBrush (Color.darkgray), (this.
            WIDTH/2)-10, 10);
            StartAngle = (startangle + 90)% 360; E.graphics.drawstring (startangle. ToString (), New Font ("Arial", 8), New SolidBrush (Color.darkgray), this. Width-18, (this.
            HEIGHT/2)-6);
            StartAngle = (startangle + 90)% 360; E.graphics.drawstring (startangle. ToString (), New Font ("Arial", 8), New SolidBrush (Color.darkgray), (this. WIDTH/2)-6, this.
            HEIGHT-18);
            StartAngle = (startangle + 90)% 360; E.graphics.drawstring (startangle. ToString (), New Font ("Arial", 8), New SolidBrush (Color.darkgray), ten, (this.
            HEIGHT/2)-6);
            Draw line along the current angle.
            Double radians = (((angle + rotation) + 360)% 360) * Math.PI)/(double) 180; E.graphics.drawline (New Pen (New SolidBrush (color.red), 1), Originx, Originy, Originx + (int) (double) Originx * (double) Math.Cos (radians)), Originy + (int) (double) Originy (double) Math.sin (radians));
            Output angle information. E.graphics.fillrectangle (New SolidBrush (Color.gray), this.
            Width-84, 3, 82, 13); E.graphics.drawstring ("Angle:" + Angle.) ToString ("F4"), New Font ("Arial", 8), New SolidBrush (Color.yellow), this.
            Width-84, 2);
            Draw square at mouse position's last angle adjustment.
            E.graphics.drawrectangle (New Pen (New SolidBrush (Color.Black), 1), Dbx-2, Dby-2, 4, 4);
            Draw rotation adjustment buttons. if (Overbutton = = 1) {E.graphics.fillrectangle (new SolidBrush (Color.green), this. Width-28, this.
                HEIGHT-14, 12, 12); E.graphics.fillrectangle (New SolidBrush (Color.gray), 2, this.
                HEIGHT-13, 110, 12); E.graphics.drawstring ("Rotate degrees left", New Font ("Arial", 8), New SolidBrush (Color.White), 2, this.
            HEIGHT-14); else E.graphics.fillrectangle (new SolidBrush (Color.darkgreen), this. Width-28, this.
            HEIGHT-14, 12, 12); if (Overbutton = = 2) {E.graphics.fillrectangle (new SolidBrush (Color.green), this. Width-14, this.
                HEIGHT-14, 12, 12); E.graphics.fillrectangle (New SolidBrush (Color.gray), 2, this.
                HEIGHT-13, 116, 12); E.graphics.drawstring ("Rotate degrees Right", New Font ("Arial", 8), New SolidBrush (Color.White), 2, this.
            HEIGHT-14); else E.graphics.fillrectangle (new SolidBrush (Color.darkgreen), this. Width-14, this.
            HEIGHT-14, 12, 12); E.graphics.drawellipse (New Pen (New SolidBrush (Color.White), 1), this. Width-11, this.
            HEIGHT-11, 6, 6); E.graphics.drawellipse (New Pen (New SolidBrush (Color.White), 1), this. Width-25, this.
            HEIGHT-11, 6, 6); if (Overbutton = 1) e.gRaphics. FillRectangle (New SolidBrush (Color.green), this. Width-25, this.
            Height-6, 4, 4); else E.graphics.fillrectangle (new SolidBrush (Color.darkgreen), this. Width-25, this.
            Height-6, 4, 4); if (Overbutton = = 2) e.graphics.fillrectangle (new SolidBrush (Color.green), this. Width-8, this.
            Height-6, 4, 4); else E.graphics.fillrectangle (new SolidBrush (Color.darkgreen), this. Width-8, this.
            Height-6, 4, 4); E.graphics.fillpolygon (New SolidBrush (Color.White), new point[] {new point. Width-7, this. HEIGHT-8), new Point (this. Width-3, this. HEIGHT-8), new Point (this. Width-5, this.
            HEIGHT-4)}); E.graphics.fillpolygon (New SolidBrush (Color.White), new point[] {new point. Width-26, this. HEIGHT-8), new Point (this. Width-21, this. HEIGHT-8), new Point (this. Width-25, this.
        HEIGHT-4)}); } protected override void OnMouseDown (System.Windows.FormS.mouseeventargs e) {//Handle rotation adjustment button clicks. if (e.x >= this. Width-28 && e.x <= this. Width-2 && e.y >= this. Height-14 && e.y <= this. Height-2) {if (e.x <=).
                Width-16) Rotation-= 90; else if (e.x >= this.
                WIDTH-14) rotation + + 90;
                if (rotation < 0) rotation + + 360;
                rotation = rotation% 360;
                dbx =-10;
            Dby =-10;
            else Updateangle (e.x, e.y); This.
        Refresh ();  } protected override void OnMouseMove (System.Windows.Forms.MouseEventArgs e) {if (E.button = =
                MouseButtons.Left) {Updateangle (e.x, e.y);
            Overbutton =-1; else if (e.x >= this.) Width-28 &&amP E.x <= this. Width-16 && e.y >= this. Height-14 && e.y <= this.
            Height-2) Overbutton = 1; else if (e.x >= this. Width-14 && e.x <= this. Width-2 && e.y >= this. Height-14 && e.y <= this.
            Height-2) Overbutton = 2;
            else Overbutton =-1; This.
        Refresh ();
            private void Updateangle (int mx, int my) {//Store mouse coordinates.
            dbx = mx;
            Dby = my;
            Translate y coordinate input to getangle function to correct for ellipsoid distortion. Double widthtoheightratio = (double) this. Width/(double) this.
            Height;
            int tmy;
            if (i = = 0) tmy = my; else if (Me < this. HEIGHT/2) Tmy = (this. HEIGHT/2)-(int) ((this.
            HEIGHT/2)-My) * widthtoheightratio); else tmy = (thiS.HEIGHT/2) + (int) (double) (this.
            HEIGHT/2)) * widthtoheightratio);
            Retrieve updated angle based on rise over run. Angle = (Getangle (this. WIDTH/2, this.
        HEIGHT/2, MX, tmy)-rotation)% 360;
            Private double getangle (int x1, int y1, int x2, int y2) {double degrees;
            Avoid divide by zero run values.
                if (x2-x1 = = 0) {if (y2 > y1) degrees = 90;
            else degrees = 270;
                else {//Calculate angle from offset.
                Double Riseoverrun = (double) (y2-y1)/(double) (X2-X1);
                Double radians = Math.atan (Riseoverrun);
                degrees = radians * (double) 180/math.pi);
                Handle Quadrant specific transformations. if ((X2-X1) < 0 | |
 (Y2-Y1) < 0) degrees + + 180;               if ((x2-x1) > 0 && (y2-y1) < 0) degrees-= 180;
            if (degrees < 0) degrees + + 360;
        return degrees; 
        } public class AngleEditorTestControl:System.Windows.Forms.UserControl {private Double int_angle;
        [BrowsableAttribute (True)]
            [Editor (typeof (Angleeditor), typeof (System.Drawing.Design.UITypeEditor))] public double Angle {
            get {return int_angle;}
        set {Int_angle = value;}
            Public Angleeditortestcontrol () {int_angle = 90; This.
            size = new Size (190, 42); This.
        BackColor = Color.beige; } protected override void OnPaint (System.Windows.Forms.PaintEventArgs e) {if (this. DesignMode) {e.graphics.drawstring ("Use of the Properties window to access", NEW Font ("Arial", 8), New SolidBrush (Color.Black), 3, 2);
                E.graphics.drawstring ("The Angleeditor UITypeEditor by", New Font ("Arial", 8), New SolidBrush (Color.Black), 3, 14);  E.graphics.drawstring ("Configuring the" Angle\ "property.", New Font ("Arial", 8), New SolidBrush (Color.Black),
            3, 26); else E.graphics.drawstring ("This example requires design mode.", New Font ("Arial", 8), new S
        Olidbrush (Color.Black), 3, 2); }
    }
}