using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;

using HXX.Scanner.Client.Properties;

namespace HXX.Scanner.Client.Base
{
    public partial class BaseForm : Form
    {
        public BaseForm()
        {
            SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer, true);

            InitializeComponent();

            InitParts();
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            Calculate();

            DrawBackground(e.Graphics);

            base.OnPaint(e);
        }

        PartBase partTopBG_Left;
        //PartBase partTopBG_Right;
        PartBase partTopBG_Center;

        PartBase partTopLine;
        PartBase partBottomLine;
        PartBase partLeftLine;
        PartBase partRightLine;
        PartBase partBottomSquare;

        FormWindowState _formState = FormWindowState.Normal;

        int _orginWidth;
        int _orginHeight;
        int _orginX;
        int _orginY;

        private void InitParts()
        {
            partTopLine = new PartBase();
            partTopLine.BackgroundBitmap = Resources.HLine;

            partBottomLine = new PartBase();
            partBottomLine.BackgroundBitmap = Resources.HLine;

            partLeftLine = new PartBase();
            partLeftLine.BackgroundBitmap = Resources.VLine;

            partRightLine = new PartBase();
            partRightLine.BackgroundBitmap = Resources.VLine;

            partTopBG_Left = new PartBase();
            partTopBG_Left.BackgroundBitmap = Resources.topbg_left;

            //partTopBG_Right = new PartBase();
            //partTopBG_Right.BackgroundBitmap = Resources.topbg_Right21;

            partTopBG_Center = new PartBase();
            partTopBG_Center.BackgroundBitmap = Resources.topbg_Center;

            partBottomSquare = new PartBase();
            partBottomSquare.BackgroundBitmap = Resources.BottomMiddle;

            b1.ReadButtonImage(Resources.MinNormal, Resources.MinMove, Resources.MinDown);
            //b2.ReadButtonImage(Resources.MaxNormal, Resources.MaxMove, Resources.MaxDown);
            b3.ReadButtonImage(Resources.CloseNormal, Resources.CloseMove, Resources.CloseDown);
        }

        private void Calculate()
        {
            partTopLine.X = 0;
            partTopLine.Y = 0;
            partTopLine.Height = partTopLine.BackgroundBitmap.Height;
            partTopLine.Width = this.Width;

            partBottomLine.X = 0;
            partBottomLine.Y = this.Height - partBottomLine.BackgroundBitmap.Height;
            partBottomLine.Height = partBottomLine.BackgroundBitmap.Height;
            partBottomLine.Width = this.Width;

            partLeftLine.X = 0;
            partLeftLine.Y = 0;
            partLeftLine.Height = this.Height;
            partLeftLine.Width = partLeftLine.BackgroundBitmap.Width;

            partRightLine.X = this.Width - partLeftLine.BackgroundBitmap.Width;
            partRightLine.Y = 0;
            partRightLine.Height = this.Height;
            partRightLine.Width = partRightLine.BackgroundBitmap.Width;

            partTopBG_Left.X = partLeftLine.Width;
            partTopBG_Left.Y = partTopLine.Height;
            partTopBG_Left.Height = partTopBG_Left.BackgroundBitmap.Height;
            partTopBG_Left.Width = partTopBG_Left.BackgroundBitmap.Width;

            //partTopBG_Right.X = partRightLine.X - partTopBG_Right.BackgroundBitmap.Width;
            //partTopBG_Right.Y = partTopLine.Height;
            //partTopBG_Right.Height = partTopBG_Right.BackgroundBitmap.Height;
            //partTopBG_Right.Width = partTopBG_Right.BackgroundBitmap.Width;

            partTopBG_Center.X = partTopBG_Left.X + partTopBG_Left.Width;
            partTopBG_Center.Y = partTopLine.Height;
            partTopBG_Center.Height = partTopBG_Center.BackgroundBitmap.Height;
            partTopBG_Center.Width = this.Width - partLeftLine.Width - partRightLine.Width - partTopBG_Left.Width;// - partTopBG_Right.Width;

            partBottomSquare.X = partLeftLine.Width;
            partBottomSquare.Y = this.Height - partBottomLine.Height - partBottomSquare.BackgroundBitmap.Height;
            partBottomSquare.Height = partBottomSquare.BackgroundBitmap.Height;
            partBottomSquare.Width = this.Width - partLeftLine.Width - partRightLine.Width;

            palCenter.Top = partTopBG_Left.Y + partTopBG_Left.Height;
            palCenter.Left = partLeftLine.Width;
            palCenter.Height = this.Height - partTopLine.Height - partTopBG_Left.Height - partBottomSquare.Height - partBottomLine.Height;
            palCenter.Width = this.Width - partLeftLine.Width - partRightLine.Width;

            b3.Top = partTopLine.Height;
            b3.Left = this.Width - 50;

            b2.Top = b3.Top;
            b2.Left = b3.Left - b2.Width + 1;
            b2.Visible = false;

            b1.Top = b3.Top;
            b1.Left = b2.Left - b1.Width + 1;
        }

        private void DrawBackground(Graphics g)
        {
            g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
            g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBilinear;
            g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;

            ImageAttributes attribute = new ImageAttributes();
            attribute.SetWrapMode(WrapMode.TileFlipXY);

            //g.Clear(Color.Transparent);

            //边框线
            partTopLine.DrawSelf(g, attribute);
            partBottomLine.DrawSelf(g, attribute);
            partLeftLine.DrawSelf(g, attribute);
            partRightLine.DrawSelf(g, attribute);

            //Title图
            partTopBG_Left.DrawSelf(g, null);
            //partTopBG_Right.DrawSelf(g, null);

            if (partTopBG_Center.Width > 0)
            {
                partTopBG_Center.DrawSelf(g, attribute);
            }

            //底部横块
            partBottomSquare.DrawSelf(g, attribute);

            attribute.Dispose();  
        }

        private void NewBaseForm_MouseMove(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left && _formState != FormWindowState.Maximized)   //拖动窗体
            {
                if (e.Y < partTopBG_Left.X + partTopBG_Left.Height)
                {
                    BaseFormWin32.ReleaseCapture();
                    BaseFormWin32.SendMessage(Handle, 274, 61440 + 9, 0);
                    return;
                }
            }
        }

        protected virtual void maxButton_Click(object sender, EventArgs e)
        {
            if (_formState == FormWindowState.Normal)
            {
                MaxWindow();
            }
            else
            {
                NormalWindow();
            }
        }

        protected virtual void minButton_Click(object sender, EventArgs e)
        {
            WindowState = FormWindowState.Minimized;
        }

        protected virtual void closeButton_Click(object sender, EventArgs e)
        {
            Close();
        }

        private void NormalWindow()
        {
            this.Invalidate();

            Left = _orginX;
            Top = _orginY;
            Width = _orginWidth;
            Height = _orginHeight;

            _formState = FormWindowState.Normal;
        }

        private void MaxWindow()
        {
            this.Invalidate();

            //最大化之前记录窗口信息便于缩小
            _orginHeight = Height;
            _orginWidth = Width;
            _orginX = Location.X;
            _orginY = Location.Y;

            Width = Screen.PrimaryScreen.WorkingArea.Width + 4;
            Height = Screen.PrimaryScreen.WorkingArea.Height + 4;
            Top = -1;
            Left = -1;

            _formState = FormWindowState.Maximized;
        }

        private void NewBaseForm_DoubleClick(object sender, EventArgs e)
        {
            //if (e.Y < partTopBG_Left.X + partTopBG_Left.Height)
            {
                maxButton_Click(null, null);
            }
        }

        private void NewBaseForm_Click(object sender, EventArgs e)
        {
            //Point p = this.PointToClient(Control.MousePosition);

            //if (p.X > partTopBG_Right.X && p.X < partTopBG_Right.X + partTopBG_Right.Width
            //    && p.Y > partTopBG_Right.Y && p.Y < partTopBG_Right.Y + partTopBG_Right.Height)
            //{
            //    frmHelp frm = new frmHelp();

            //    frm.ShowDialog();
            //}
        }
    }

    class PartBase
    {
        public int X { get; set; }
        public int Y { get; set; }
        public int Width { get; set; }
        public int Height { get; set; }
        public Bitmap BackgroundBitmap { get; set; }

        public Rectangle Rectangle
        {
            get { return new Rectangle(X, Y, Width, Height); }
        }

        public void DrawSelf(Graphics g, ImageAttributes attribute)
        {
            if (attribute != null)
            {
                g.DrawImage(BackgroundBitmap, Rectangle, 0, 0, Width, Height, GraphicsUnit.Pixel, attribute);
            }
            else
            {
                g.DrawImage(BackgroundBitmap, Rectangle);
            }
        }
    }
}