using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Collections;       // ?
using System.Drawing.Drawing2D; // LinearGradientBrush object
using System.Resources;         // ResourceManager object

namespace Standard
{
    public partial class MainForm : Form
    {

        public MainForm()
        {
            InitializeComponent();
        }


        private void restoreWindowState()
        {
            string stringMe = "restoreWindowState: ";
            try
            {
                this.Top = Model.MainFormTop;
                this.Left = Model.MainFormLeft;
                this.Width = Model.MainFormWidth;
                this.Height = Model.MainFormHeight;
                if (Model.MainFormMaximized)
                    WindowState = FormWindowState.Maximized;
            }
            catch (Exception ex)
            {
                throw new Exception(stringMe + ex.Message);
            }
        }
        
        private void MainForm_Load(object sender, System.EventArgs e)
        {
            string stringMe = "MainForm_Load: ";
            try
            {
                LogFile.WriteLine(stringMe + "screen is " +
                    SystemInformation.WorkingArea.Width.ToString() + " by " +
                    SystemInformation.WorkingArea.Height.ToString() + " pixels");

                this.Icon = new Icon(this.GetType(), "application.ico");

                restoreWindowState();

                this.Text = Application.ProductName + " " + Model.VersionShort;

                this.BackColor = Model.BackgroundColor;
                if (Model.Background == Model.BgType.Image)
                    fixImage();
                else
                    this.Invalidate();

                menuAbout.Text = "About " + this.Text;

                this.statusBar1.Panels[0].Text = DateTime.Now.ToLongTimeString();
                this.statusBar1.Panels[1].Text = DateTime.Now.ToShortDateString();
                this.timer1.Interval = 1000;
                this.timer1.Enabled = true;
            }
            catch (Exception ex)
            { throw new Exception(stringMe + ex.Message); }
        }


        protected override void OnPaintBackground(System.Windows.Forms.PaintEventArgs pevent)
        {
            string stringMe = "MainForm.OnPaintBackground: ";
            try
            {
                if (Model.Background == Model.BgType.Gradient)
                {
                    Graphics gc = pevent.Graphics;
                    // paint from upper-left corner (0,0) to lower-right
                    LinearGradientBrush linGrBrush = new LinearGradientBrush(new Point(0,0),
                        new Point(this.Width, this.Height),
                        Model.GradientColor1,Model.GradientColor2);
                    gc.FillRectangle(linGrBrush, pevent.ClipRectangle);
                }
                else
                {
                    base.OnPaintBackground(pevent);
                }
            }
            catch (Exception ex)
            { throw new Exception(stringMe + ex.Message); }
        }


        private void menuExit_Click(object sender, System.EventArgs e)
        {
            string stringMe = "menuExit_Click: ";
            try
            {
                this.Close();
            }
            catch (Exception ex)
            { throw new Exception(stringMe + ex.Message); }
        }


        private void saveWindowState()
        {
            if (this.WindowState.Equals(FormWindowState.Maximized))
            {
                Model.MainFormMaximized = true;
            }
            else
            {
                Model.MainFormMaximized = false;
                Model.MainFormTop = this.Top;
                Model.MainFormLeft = this.Left;
                Model.MainFormWidth = this.Width;
                Model.MainFormHeight = this.Height;
            }
        }


        private void MainForm_Closing(object sender, System.ComponentModel.CancelEventArgs e)
        {
            string stringMe = "MainForm_Closing: ";
            try
            {
                LogFile.WriteLine(stringMe + "starting");
                saveWindowState();
            }
            catch (Exception ex)
            { throw new Exception(stringMe + ex.Message); }
        }


        private void buttonExit_Click(object sender, System.EventArgs e)
        {
            menuExit_Click(sender,e);
        }


        private void menuAbout_Click(object sender, System.EventArgs e)
        {
            string stringMe = "menuAbout_Click: ";
            try
            {
                AboutForm myAboutForm = new AboutForm();
                myAboutForm.ShowDialog(this);
            }
            catch (Exception ex)
            { throw new Exception(stringMe + ex.Message); }
        }


        private void MainForm_SizeChanged(object sender, System.EventArgs e)
        {
            string stringMe = "MainForm_SizeChanged: ";
            try
            {
                this.Invalidate();
            }
            catch (Exception ex)
            { throw new Exception(stringMe + ex.Message); }
        }


        private void timer1_Tick(object sender, System.EventArgs e)
        {
            this.statusBar1.Panels[0].Text = DateTime.Now.ToLongTimeString();
        }


        private void menuBgSolid_Click(object sender, System.EventArgs e)
        {
            this.BackgroundImage = null;
            Model.Background = Model.BgType.Solid;
            this.Invalidate();
        }


        private void menuBgGradient_Click(object sender, System.EventArgs e)
        {
            this.BackgroundImage = null;
            Model.Background = Model.BgType.Gradient;
            this.Invalidate();
            
        }


        private void fixImage()
        {
            this.BackgroundImage =
                    new Bitmap(this.GetType(), "background.jpg");
            this.Invalidate();
        }


        private void menuBgImage_Click(object sender, System.EventArgs e)
        {
            Model.Background = Model.BgType.Image;
            fixImage();
        }

        private void MainForm_ResizeEnd(object sender, EventArgs e)
        {
            string stringMe = "MainForm_ResizeBegin: ";
            try
            {
                saveWindowState();
            }
            catch (Exception ex)
            {
                throw new Exception(stringMe + ex.Message);
            }
        }

        protected override void OnResize(EventArgs ea)
        {
            string stringMe = "OnResize: ";
            try
            {
                this.Invalidate();
                this.Update();
                base.OnResize(ea);
            }
            catch (Exception ex)
            {
                throw new Exception(stringMe + ex.Message);
            }
        }

    } // end class
} // end namespace