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User-driven applications

, 10 Apr 2010 CPOL 19.7K 77
User-driven applications are the programs in which full control is given to the users. Designers of such programs are responsible only for developing an instrument for solving some task, but they do not enforce users to work with this instrument according with a predefined scenario.
TheoryOfUserDrivenApplications.zip
TheoryOfUserDrivenApplications
TheoryOfUserDrivenApplications
bin
Debug
TheoryOfUserDrivenApplications.vshost.exe
Release
MoveGraphLibrary.dll
TheoryOfUserDrivenApplications.bin
TheoryOfUserDrivenApplications.exe
TheoryOfUserDrivenApplications.vshost.exe
Properties
Settings.settings
Resources
ArrowDown.bmp
ArrowUp.bmp
DELETE.BMP
Hangar.bmp
Lock.bmp
palette_.bmp
RuralHouse.bmp
RuralLeftPlus.bmp
RuralRightPlus.bmp
SimpleHouse.bmp
User_driven_applications.doc
User_driven_applications.pdf
using System;
using System .Collections .Generic;
using System .ComponentModel;
using System .Drawing;
using System .Windows .Forms;

using MoveGraphLibrary;

namespace UserDrivenApplications
{
    public partial class Form_Colors_Hangar : Form
    {
        public event EventHandler Changed;
        Mover mover;
        Hangar house;
        Sample_Hangar sample;
        Point ptMouseClick;

        // -------------------------------------------------
        public Form_Colors_Hangar (Hangar srcHouse, Point ptScreenMouseClick)
        {
            InitializeComponent ();
            mover = new Mover (this);

            house = srcHouse;
            ptMouseClick = ptScreenMouseClick;

            // drawing coordinates
            int nRadius = ClientSize .Height * 2 / 3;
            Point ptCenter = new Point (ClientSize .Width / 2, (ClientSize .Height - nRadius) / 2 + nRadius);
            int hDoor = 60;
            int wDoor = 100;
            Rectangle rcDoor = new Rectangle (ptCenter .X - wDoor / 2, ptCenter .Y - hDoor, wDoor, hDoor);

            buttonHouse .Location = new Point (ptCenter .X + buttonHouse .Width / 2, ptCenter .Y - nRadius + buttonHouse .Height * 2 / 3);
            buttonDoor .Location = new Point (rcDoor .Left + 6, rcDoor .Bottom - (buttonDoor .Height + 6));

            List<Control> ctrls = new List<Control> ();
            ctrls .Add (buttonHouse);
            ctrls .Add (buttonDoor);

            sample = new Sample_Hangar (ptCenter, nRadius, rcDoor, ctrls, house .GetColors ());
            mover .Add (sample);
        }
        // -------------------------------------------------        OnLoad
        private void OnLoad (object sender, EventArgs e)
        {
            Location = ptMouseClick;
        }
        // -------------------------------------------------        OnPaint
        private void OnPaint (object sender, PaintEventArgs e)
        {
            sample .Draw (e .Graphics);
        }
        // -------------------------------------------------        OnMouseDown
        private void OnMouseDown (object sender, MouseEventArgs e)
        {
            mover .Catch (e .Location, e .Button);
        }
        // -------------------------------------------------        OnMouseUp
        private void OnMouseUp (object sender, MouseEventArgs e)
        {
            mover .Release ();
        }
        // -------------------------------------------------        OnMouseMove
        private void OnMouseMove (object sender, MouseEventArgs e)
        {
            if (mover .Move (e .Location))
            {
                Invalidate ();
            }
        }
        // -------------------------------------------------        Click_btnHouse
        private void Click_btnHouse (object sender, EventArgs e)
        {
            ColorDialog dlg = new ColorDialog ();

            dlg .Color = house .HouseColor;
            if (dlg .ShowDialog () == DialogResult .OK)
            {
                house .HouseColor = dlg .Color;
                sample .HouseColor = dlg .Color;
                Invalidate ();
                if (Changed != null) Changed (this, new EventArgs ());
            }
        }
        // -------------------------------------------------        Click_btnDoor
        private void Click_btnDoor (object sender, EventArgs e)
        {
            ColorDialog dlg = new ColorDialog ();

            dlg .Color = house .DoorColor;
            if (dlg .ShowDialog () == DialogResult .OK)
            {
                house .DoorColor = dlg .Color;
                sample .DoorColor = dlg .Color;
                Invalidate ();
                if (Changed != null) Changed (this, new EventArgs ());
            }
        }
    }

    // ******************************************
    public class Sample_Hangar : GraphicalObject
    {
        Point ptCenter;
        int radius;
        Rectangle rcDoor;
        List<Control> controls = new List<Control> ();
        SolidBrush brushHouse, brushRoof, brushWindow, brushDoor;
        Pen penEdge;

        // -------------------------------------------------
        public Sample_Hangar (Point ptC, int nRad, Rectangle rcEntrance, List<Control> ctrls, Color [] clrs)
        {
            ptCenter = ptC;
            radius = nRad;
            rcDoor = rcEntrance;
            controls = ctrls;
            SetColors (clrs);
        }
        // -------------------------------------------------        SetColors
        public void SetColors (Color [] clrs)
        {
            brushHouse = new SolidBrush (clrs [0]);
            brushRoof = new SolidBrush (clrs [1]);
            brushWindow = new SolidBrush (clrs [2]);
            brushDoor = new SolidBrush (clrs [3]);
            penEdge = new Pen (clrs [4]);
        }
        // -------------------------------------------------        HouseColor
        public Color HouseColor
        {
            set { brushHouse = new SolidBrush (value); }
        }
        // -------------------------------------------------        RoofColor
        public Color RoofColor
        {
            set { brushRoof = new SolidBrush (value); }
        }
        // -------------------------------------------------        WindowColor
        public Color WindowColor
        {
            set { brushWindow = new SolidBrush (value); }
        }
        // -------------------------------------------------        DoorColor
        public Color DoorColor
        {
            set { brushDoor = new SolidBrush (value); }
        }
        // -------------------------------------------------        EdgeColor
        public Color EdgeColor
        {
            set { penEdge = new Pen (value); }
        }
        // -------------------------------------------------        Draw
        public void Draw (Graphics grfx)
        {
            Rectangle rc = new Rectangle (ptCenter .X - radius, ptCenter .Y - radius, 2 * radius, 2 * radius);
            grfx .FillPie (brushHouse, rc, 0, -180);
            grfx .DrawPie (penEdge, rc, 0, -180);
            grfx .FillRectangle (brushDoor, rcDoor);
            grfx .DrawRectangle (penEdge, rcDoor);
            int cx = ptCenter .X;
            grfx .DrawLine (penEdge, cx, rcDoor .Top, cx, rcDoor .Bottom);
        }
        // -------------------------------------------------        DefineCover
        public override void DefineCover ()
        {
            CoverNode [] nodes = new CoverNode [2];
            nodes [0] = new CoverNode (0, new Rectangle (ptCenter .X - radius, ptCenter .Y, 2 * radius, radius),
                                          MovementFreedom .Transparent, Cursors .Default);
            nodes [1] = new CoverNode (1, ptCenter, radius, Cursors .SizeAll);
            cover = new Cover (nodes);
        }
        // -------------------------------------------------        Move
        public override void Move (int dx, int dy)
        {
            Size size = new Size (dx, dy);
            ptCenter += size;
            for (int i = 0; i < controls .Count; i++)
            {
                controls [i] .Location += size;
            }
        }
        // -------------------------------------------------        MoveNode
        public override bool MoveNode (int i, int dx, int dy, Point ptM, MouseButtons catcher)
        {
            bool bRet = false;

            if (catcher == MouseButtons .Left)
            {
                Move (dx, dy);
                bRet = true;
            }
            return (bRet);
        }
    }
}

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SergeyAndreyev

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