BitmapFramesTest

Set the NameSpace to project current NameSpace

//Form Designer
namespace BitmapFramesTest
{
    partial class frmBitmapFrames
    {
        private System.ComponentModel.IContainer components = null;

        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        private void InitializeComponent()
        {
            this.panScrollFrames = new System.Windows.Forms.Panel();
            this.pictureBox1 = new System.Windows.Forms.PictureBox();
            this.btnOpenFile = new System.Windows.Forms.Button();
            this.btnClear = new System.Windows.Forms.Button();
            this.rtbInfo = new System.Windows.Forms.RichTextBox();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
            this.SuspendLayout();
            //
            // panScrollFrames
            //
            this.panScrollFrames.AutoScroll = true;
            this.panScrollFrames.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.panScrollFrames.Dock = System.Windows.Forms.DockStyle.Bottom;
            this.panScrollFrames.Font = new System.Drawing.Font("Segoe UI", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.panScrollFrames.ForeColor = System.Drawing.Color.Black;
            this.panScrollFrames.Location = new System.Drawing.Point(0, 245);
            this.panScrollFrames.Name = "panScrollFrames";
            this.panScrollFrames.Size = new System.Drawing.Size(415, 126);
            this.panScrollFrames.TabIndex = 0;
            //
            // pictureBox1
            //
            this.pictureBox1.Location = new System.Drawing.Point(183, 11);
            this.pictureBox1.Name = "pictureBox1";
            this.pictureBox1.Size = new System.Drawing.Size(220, 220);
            this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
            this.pictureBox1.TabIndex = 1;
            this.pictureBox1.TabStop = false;
            //
            // btnOpenFile
            //
            this.btnOpenFile.FlatAppearance.MouseDownBackColor = System.Drawing.Color.FromArgb(((int)(((byte)(128)))), ((int)(((byte)(64)))), ((int)(((byte)(0)))));
            this.btnOpenFile.FlatAppearance.MouseOverBackColor = System.Drawing.Color.FromArgb(((int)(((byte)(192)))), ((int)(((byte)(64)))), ((int)(((byte)(0)))));
            this.btnOpenFile.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
            this.btnOpenFile.Font = new System.Drawing.Font("Segoe UI", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.btnOpenFile.ForeColor = System.Drawing.Color.White;
            this.btnOpenFile.Location = new System.Drawing.Point(12, 12);
            this.btnOpenFile.Name = "btnOpenFile";
            this.btnOpenFile.Size = new System.Drawing.Size(106, 35);
            this.btnOpenFile.TabIndex = 2;
            this.btnOpenFile.Text = "Open Bitmap";
            this.btnOpenFile.UseVisualStyleBackColor = true;
            this.btnOpenFile.Click += new System.EventHandler(this.btnOpenFile_Click);
            //
            // btnClear
            //
            this.btnClear.FlatAppearance.MouseDownBackColor = System.Drawing.Color.FromArgb(((int)(((byte)(128)))), ((int)(((byte)(64)))), ((int)(((byte)(0)))));
            this.btnClear.FlatAppearance.MouseOverBackColor = System.Drawing.Color.FromArgb(((int)(((byte)(192)))), ((int)(((byte)(64)))), ((int)(((byte)(0)))));
            this.btnClear.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
            this.btnClear.Font = new System.Drawing.Font("Segoe UI", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.btnClear.ForeColor = System.Drawing.Color.White;
            this.btnClear.Location = new System.Drawing.Point(12, 53);
            this.btnClear.Name = "btnClear";
            this.btnClear.Size = new System.Drawing.Size(106, 35);
            this.btnClear.TabIndex = 3;
            this.btnClear.Text = "Clear ViewPort";
            this.btnClear.UseVisualStyleBackColor = true;
            this.btnClear.Click += new System.EventHandler(this.btnClear_Click);
            //
            // rtbInfo
            //
            this.rtbInfo.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(32)))), ((int)(((byte)(32)))), ((int)(((byte)(32)))));
            this.rtbInfo.BorderStyle = System.Windows.Forms.BorderStyle.None;
            this.rtbInfo.Font = new System.Drawing.Font("Microsoft Sans Serif", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.rtbInfo.ForeColor = System.Drawing.Color.White;
            this.rtbInfo.Location = new System.Drawing.Point(12, 132);
            this.rtbInfo.Name = "rtbInfo";
            this.rtbInfo.Size = new System.Drawing.Size(165, 99);
            this.rtbInfo.TabIndex = 4;
            this.rtbInfo.Text = "";
            //
            // frmBitmapFrames
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(32)))), ((int)(((byte)(32)))), ((int)(((byte)(32)))));
            this.ClientSize = new System.Drawing.Size(415, 371);
            this.Controls.Add(this.rtbInfo);
            this.Controls.Add(this.btnClear);
            this.Controls.Add(this.btnOpenFile);
            this.Controls.Add(this.pictureBox1);
            this.Controls.Add(this.panScrollFrames);
            this.Name = "frmBitmapFrames";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
            this.Text = "frmBitmapFrames";
            this.Load += new System.EventHandler(this.frmBitmapFrames_Load);
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.Panel panScrollFrames;
        private System.Windows.Forms.PictureBox pictureBox1;
        private System.Windows.Forms.Button btnOpenFile;
        private System.Windows.Forms.Button btnClear;
        private System.Windows.Forms.RichTextBox rtbInfo;
    }
}


// Form code

using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Windows.Media.Imaging;
using System.Windows.Forms;

namespace BitmapFramesTest
{
    public partial class frmBitmapFrames : Form
    {
        internal BitmapDecoder Decoder = null;
        private List<PictureBox> ImageContainers = null;
        private List<BitmapFrame> Frames;
        private Bitmap CurrentBitmap = null;
        private int CurrentSelectedFrame = -1;
        private float DefaultFrameHeight = 0.0F;

        public frmBitmapFrames()
        {
            InitializeComponent();
            this.ImageContainers = new List<PictureBox>();
            this.Frames = new List<BitmapFrame>();
            DefaultFrameHeight = this.panScrollFrames.Height - 22;
        }

        private BitmapDecoder DecodeBitmap(string FileName)
        {
            using (FileStream stream = File.Open(FileName, FileMode.Open, FileAccess.Read, FileShare.None))
                return DecodeBitmap(stream);
        }

        private BitmapDecoder DecodeBitmap(FileStream stream)
        {
            MemoryStream memstream = new MemoryStream();
            stream.CopyTo(memstream);
            memstream.Position = 0;
            BitmapDecoder bitmapDecoder = BitmapDecoder.Create(memstream,
                                                        BitmapCreateOptions.PreservePixelFormat,
                                                        BitmapCacheOption.Default);
            this.Frames = bitmapDecoder.Frames.ToList();
            return bitmapDecoder;
        }

        internal void BuildImageList()
        {
            SizeF ImageSize = CalculateImageSize(this.Decoder.Frames[0]);
            PointF ImagePosition = new PointF(0, 0);
            foreach (BitmapFrame frame in this.Decoder.Frames)
            {
                this.CurrentSelectedFrame += 1;
                this.ImageContainers.Add(new PictureBox()
                {
                    Image = BitmapFromSource(frame),
                    Size = System.Drawing.Size.Round(ImageSize),
                    Location = System.Drawing.Point.Round(ImagePosition),
                    SizeMode = PictureBoxSizeMode.Zoom,
                    Tag = this.CurrentSelectedFrame
                });
                ImageContainers.Last().Click += new EventHandler(this.pictureBoxClick);
                ImagePosition.X += ImageSize.Width + 10;
            }
            this.panScrollFrames.Controls.AddRange(ImageContainers.ToArray());
        }

        public Bitmap BitmapFromSource(BitmapSource source)
        {
            using (MemoryStream outStream = new MemoryStream())
            {
                BitmapEncoder encoder = new BmpBitmapEncoder();
                encoder.Frames.Add(BitmapFrame.Create(source));
                encoder.Save(outStream);
                using (Bitmap bitmap = new Bitmap(outStream))
                    return (Bitmap)bitmap.Clone();
            }
        }

        private SizeF CalculateImageSize(BitmapSource source)
        {
            float ScaleFactor = (float)source.Height / DefaultFrameHeight;
            return new SizeF(((float)source.Width / ScaleFactor), DefaultFrameHeight);
        }

        private void ClearVewport()
        {
            foreach (Control ctrl in this.panScrollFrames.Controls.OfType<PictureBox>())
                ctrl.Dispose();
            this.panScrollFrames.Controls.Clear();
            this.ImageContainers.Clear();
            this.rtbInfo.Text = string.Empty;
            this.Decoder = null;
        }

        protected void pictureBoxClick(object sender, EventArgs e)
        {
            this.CurrentBitmap = (Bitmap)((PictureBox)sender).Image.Clone();
            this.CurrentSelectedFrame = (int)((PictureBox)sender).Tag;
            //pictureBox1.Image = this.CurrentBitmap;
            pictureBox1.Image = BitmapFromSource(this.Frames[this.CurrentSelectedFrame]);
        }

        private void btnOpenFile_Click(object sender, EventArgs e)
        {
            using (OpenFileDialog ofd = new OpenFileDialog())
            {
                ofd.Filter = "All Files (*.*)|*.*";
                ofd.Multiselect = false;
                if (ofd.ShowDialog() == DialogResult.Cancel) return;

                if (this.ImageContainers.Count > 0)
                    ClearVewport();
                this.Decoder = DecodeBitmap(ofd.FileName);
            }
            rtbInfo.AppendText($"Image Size: \t");
            rtbInfo.SelectionColor = System.Drawing.Color.LightGreen;
            rtbInfo.AppendText($"{this.Decoder.Frames[0].Width}x{this.Decoder.Frames[0].Height}\n");
            rtbInfo.AppendText($"Pixel Format: \t");
            rtbInfo.SelectionColor = System.Drawing.Color.LightGreen;
            rtbInfo.AppendText($"{this.Decoder.Frames[0].Format.ToString()}\n");
            rtbInfo.AppendText($"Frames Count: \t");
            rtbInfo.SelectionColor = System.Drawing.Color.LightGreen;
            rtbInfo.AppendText($"{this.Decoder.Frames.Count}\n");
            BuildImageList();
        }

        private void btnClear_Click(object sender, EventArgs e)
        {
            ClearVewport();
        }
    }
}