using System;
using System.Collections.Generic;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Xml;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework;
//using WinFormsGraphicsDevice;

namespace DarkWynter.App
{
    using Color = System.Drawing.Color;
    using Point = System.Drawing.Point;

    public class LevelEditorPanel : Panel
    {
        public Panel panel;

        private PictureBox pictureBoxMapView;
        private Button colorSelectionButton;
        private NumericUpDown numericUpDownGreyScaleValue;
        private NumericUpDown numericUpDownBrushSize;

        // New Bitmap
        Bitmap bmp;
        Color currentColor = Color.Red;
        int brushSize = 50;
        Texture2D saveTexture;
        Vector4[] saveData;

        public LevelEditorPanel(): base()
        {
            Initialize();
        }

        protected void Initialize()
        {
            this.panel = CreatePanel(ContentLoader.location, ContentLoader.size);
            this.pictureBoxMapView = new PictureBox();
            this.colorSelectionButton = new Button();
            this.numericUpDownGreyScaleValue = new NumericUpDown();
            this.numericUpDownBrushSize = new NumericUpDown();

            // 
            // pictureBox1
            // 
            this.pictureBoxMapView.BackColor = System.Drawing.Color.Transparent;
            this.pictureBoxMapView.Location = new System.Drawing.Point(0, 0);
            this.pictureBoxMapView.Name = "pictureBox1";
            this.pictureBoxMapView.Size = new System.Drawing.Size(500, 500);
            this.pictureBoxMapView.TabIndex = 0;
            this.pictureBoxMapView.TabStop = false;
            this.pictureBoxMapView.BorderStyle = BorderStyle.Fixed3D;
            this.pictureBoxMapView.Click += new System.EventHandler(this.pictureBoxMapView_Click);

            // New Bitmap
            // bmp = new Bitmap("c:/images/image.gif");
            bmp = new Bitmap(512, 512);
            pictureBoxMapView.Image = bmp;

            //saveTexture = new Texture2D(GraphicsDevice, bmp.Width, bmp.Height, 0, TextureUsage.AutoGenerateMipMap, SurfaceFormat.Vector4);
            saveData = new Vector4[bmp.Width * bmp.Height];
            // 
            // colorSelectionButton
            // 
            this.colorSelectionButton.Location = new System.Drawing.Point(0, 540);
            this.colorSelectionButton.Name = "colorSelectionButton";
            this.colorSelectionButton.Size = new System.Drawing.Size(107, 25);
            this.colorSelectionButton.TabIndex = 1;
            this.colorSelectionButton.Text = "Change Color";
            this.colorSelectionButton.UseVisualStyleBackColor = true;
            this.colorSelectionButton.Click += new System.EventHandler(this.colorSelectionButton_Click);
            // 
            // numericUpDownGreyScaleValue
            // 
            this.numericUpDownGreyScaleValue.Location = new System.Drawing.Point(0, 515);
            this.numericUpDownGreyScaleValue.Maximum = new decimal(new int[] {
            255,
            0,
            0,
            0});
            this.numericUpDownGreyScaleValue.Name = "numericUpDown1";
            this.numericUpDownGreyScaleValue.Size = new System.Drawing.Size(120, 20);
            this.numericUpDownGreyScaleValue.TabIndex = 2;
            this.numericUpDownGreyScaleValue.ValueChanged +=
                new System.EventHandler(this.numericUpDownGreyScaleValue_ValueChanged);

            // 
            // numericUpDownBrushSize
            // 
            this.numericUpDownBrushSize.Location = new System.Drawing.Point(0, 575);
            this.numericUpDownBrushSize.Maximum = new decimal(new int[] {
            255,
            0,
            0,
            0});
            this.numericUpDownBrushSize.Name = "numericUpDown1";
            this.numericUpDownBrushSize.Size = new System.Drawing.Size(120, 20);
            this.numericUpDownBrushSize.TabIndex = 2;
            this.numericUpDownBrushSize.ValueChanged +=
                new System.EventHandler(this.numericUpDownBrushSize_ValueChanged);

            panel.Controls.Add(this.pictureBoxMapView);
            panel.Controls.Add(this.numericUpDownGreyScaleValue);
            panel.Controls.Add(this.colorSelectionButton);
            panel.Controls.Add(this.numericUpDownBrushSize);
        }

        private Panel CreatePanel(Point location, Size size)
        {
            Panel myPanel = new Panel();
            myPanel.Location = location;
            myPanel.Size = size;
            myPanel.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
            myPanel.AutoScroll = true;
            myPanel.BorderStyle = BorderStyle.Fixed3D;
            return myPanel;
        }

        #region Level Edit
        private void pictureBoxMapView_Click(object sender, EventArgs e)
        {
            MouseEventArgs me = e as MouseEventArgs;//or MouseEventArgs em = (MouseEventArgs)e;

            // Paint the pixel using brushsize
            for (int i = -brushSize; i < brushSize; i++)
            {
                for (int j = -brushSize; j < brushSize; j++)
                {
                    // Find x & y relative to center of brush
                    int x = me.X + i;
                    int y = me.Y + j;

                    // If within the bmp bounds
                    if (0 < x && x < bmp.Width && 0 < y && y < bmp.Height)
                    {
                        // Call " Brush-Tip" Function here
                        bmp.SetPixel(x, y, currentColor);
                    }
                }
            }
            // Redraw
            pictureBoxMapView.Refresh();
        }
        private void colorSelectionButton_Click(object sender, EventArgs e)
        {
            // Color Dialog Selection
            ColorDialog colorDlg = new ColorDialog();
            colorDlg.ShowDialog();
            currentColor = colorDlg.Color;
            this.colorSelectionButton.BackColor = currentColor;
        }
        private void numericUpDownGreyScaleValue_ValueChanged(object sender, EventArgs e)
        {
            // Grey Scale selection
            int color = (int)this.numericUpDownGreyScaleValue.Value;
            currentColor = Color.FromArgb(255, color, color, color);
            this.colorSelectionButton.BackColor = currentColor;
        }
        private void numericUpDownBrushSize_ValueChanged(object sender, EventArgs e)
        {
            brushSize = (int)this.numericUpDownBrushSize.Value;
        }
        #endregion

        public void SaveHeightMap()
        {
            for (int x = 0; x < saveTexture.Width; x++)
            {
                for (int y = 0; y < saveTexture.Height; y++)
                {
                    Color pixelColor = bmp.GetPixel(x, y);
                    saveData[x + y * saveTexture.Width] = new Vector4(pixelColor.R, pixelColor.G, pixelColor.B, pixelColor.A);
                }
            }

            saveTexture.SetData<Vector4>(saveData);
            saveTexture.Save("heightMap.dds", ImageFileFormat.Dds);
        }

    }
}