using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using SharpDX.Direct3D;
using SharpDX.Direct2D1;
using Factory2D1 = SharpDX.Direct2D1.Factory;
using FactoryType2D1 = SharpDX.Direct2D1.FactoryType;
using System.Text;
using System.Windows.Forms;
using SharpDX.DXGI;
using SharpDX;
using Colors = SharpDX.Color;
using SharpDX.Windows;
using System.Globalization;
using SharpDX.DirectWrite;


namespace PackingPlanVisualizations {
  public partial class PackingPlan2D : UserControl {
    WindowRenderTarget wndRender              = null;
    Factory2D1 factory                        = new Factory2D1(FactoryType2D1.SingleThreaded);
    SharpDX.DirectWrite.Factory dwFactory     = new SharpDX.DirectWrite.Factory(SharpDX.DirectWrite.FactoryType.Shared);
    RenderTargetProperties rndTargProperties  = new RenderTargetProperties(new PixelFormat(Format.B8G8R8A8_UNorm, AlphaMode.Premultiplied));
    HwndRenderTargetProperties hwndProperties = new HwndRenderTargetProperties();


    #region Packing members BEGIN     
    SolidColorBrush containerBrush;
    SolidColorBrush containerFillingBrush;
    SolidColorBrush itemBrush;
    SolidColorBrush itemFillingBrush;
    SolidColorBrush labelBrush;
    TextFormat textFormat;

    CenteredContainer2D container;
    #endregion Packing members END


    //Initialization-Methods

    public PackingPlan2D() {
      InitializeComponent();
      this.SetStyle(
        ControlStyles.ResizeRedraw, true);
    }

    private void InitializeRenderTarget() {
      hwndProperties.Hwnd = this.Handle;
      hwndProperties.PixelSize = new DrawingSize(this.Width, this.Height);
      hwndProperties.PresentOptions = PresentOptions.None;
      textFormat = new TextFormat(dwFactory, "arial", 14);

      wndRender = new WindowRenderTarget(factory, rndTargProperties, hwndProperties);
      wndRender.AntialiasMode = AntialiasMode.Aliased;
      containerBrush = new SolidColorBrush(wndRender, Colors.Black);
      containerFillingBrush = new SolidColorBrush(wndRender, Colors.DarkGray);
      itemBrush = new SolidColorBrush(wndRender, Colors.Black);
      itemFillingBrush = new SolidColorBrush(wndRender, new Color4 (Color3.White, 0.5f));
      labelBrush = new SolidColorBrush(wndRender, Colors.Black);
    }





    //Packing-Methods
    public void InitializeContainer (float width, float height) {
      container = new CenteredContainer2D(new Vector2 (this.Width, this.Height), new Vector2 (width, height));   
    }

    public void AddItemToContainer(float width, float height, float x, float y, string label) {
      container.AddItem(new Vector2(width, height), new Vector2 (x, y), label);
    }



    


    //Event-Listeners  

    private void PackingPlan2D_Load(object sender, EventArgs e) {
      InitializeRenderTarget();
    }

    private void PackingPlan2D_Paint(object sender, PaintEventArgs e) {
      wndRender.BeginDraw();
      var controlColor = Colors.White;//System.Drawing.SystemColors.Control;
      wndRender.Clear(new Colors (controlColor.R, controlColor.G, controlColor.B));

      if (container != null) {
        container.UpdateContainer(new Vector2(this.Width, this.Height));
        wndRender.FillRectangle(container.GetContainerData(), containerFillingBrush);

        //foreach (PackingPlanVisualizations.CenteredContainer2D.PackingItem item in container.GetPackingItems()) {
        //  SharpDX.RectangleF rect = item.GetRectangle(container.ContainerTopLeft);
        //  wndRender.DrawRectangle(rect, itemBrush, 2f);
        //  wndRender.FillRectangle(rect, itemFillingBrush);
        //  wndRender.DrawText(item.GetLabel(), textFormat, rect, labelBrush);
        //}

        foreach (PackingPlanVisualizations.CenteredContainer2D.LabeledRectangle item in container.GetItemRectangles()) {
          wndRender.DrawRectangle(item.rectangle, itemBrush, 2f);
          wndRender.FillRectangle(item.rectangle, itemFillingBrush);
          wndRender.DrawText(item.label, textFormat, item.rectangle, labelBrush);
        }

        wndRender.DrawRectangle(container.GetContainerData(), containerBrush, 2.0f);
      }

      wndRender.Flush();
      wndRender.EndDraw();
    }

    private void PackingPlan2D_Resize(object sender, EventArgs e) {
      if (wndRender != null)
        wndRender.Resize(new DrawingSize(this.Width, this.Height));
      //this.Refresh();
    }

    private void PackingPlan2D_MouseClick(object sender, MouseEventArgs e) {
      Console.WriteLine(e.X + " - " + e.Y);
    }
  }
}