New "Emoji" object in editor

src/Greenshot.Base/Interfaces/Drawing/Container.cs

@@ -135,6 +135,11 @@ namespace Greenshot.Base.Interfaces.Drawing
         void Load(string filename);
     }
 
+    public interface IEmojiContainer : IDrawableContainer
+    {
+        string Emoji { get; set; }
+    }
+
     public interface ICursorContainer : IDrawableContainer
     {
         Cursor Cursor { get; set; }

src/Greenshot.Base/Interfaces/DrawingModes.cs

@@ -35,6 +35,7 @@ namespace Greenshot.Base.Interfaces
         Bitmap,
         Path,
         SpeechBubble,
-        StepLabel
+        StepLabel,
+        Emoji
     }
 }

src/Greenshot.Base/Interfaces/ISurface.cs

@@ -93,6 +93,7 @@ namespace Greenshot.Base.Interfaces
         IImageContainer AddImageContainer(string filename, int x, int y);
         ICursorContainer AddCursorContainer(string filename, int x, int y);
         IIconContainer AddIconContainer(string filename, int x, int y);
+        IEmojiContainer AddEmojiContainer(string emoji, int x, int y, int size);
         long SaveElementsToStream(Stream stream);
         void LoadElementsFromStream(Stream stream);
 

src/Greenshot.Editor/Drawing/EmojiContainer.cs

@@ -0,0 +1,191 @@
+/*
+ * Greenshot - a free and open source screenshot tool
+ * Copyright (C) 2007-2021 Thomas Braun, Jens Klingen, Robin Krom
+ * 
+ * For more information see: https://getgreenshot.org/
+ * The Greenshot project is hosted on GitHub https://github.com/greenshot/greenshot
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 1 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+using System;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Runtime.Serialization;
+using System.Windows;
+using System.Windows.Forms;
+using System.Windows.Forms.Integration;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using Greenshot.Base.Interfaces.Drawing;
+using Greenshot.Editor.Drawing.Adorners;
+using Greenshot.Editor.Helpers;
+using log4net;
+using Point = System.Drawing.Point;
+using Size = System.Windows.Size;
+
+namespace Greenshot.Editor.Drawing
+{
+    /// <summary>
+    /// Description of EmojiContainer.
+    /// </summary>
+    [Serializable]
+    public class EmojiContainer : DrawableContainer, IEmojiContainer
+    {
+        private static readonly ILog Log = LogManager.GetLogger(typeof(IconContainer));
+
+        [NonSerialized] private System.Windows.Controls.Image _image;
+
+        private int _rotateAngle;
+        private string _emoji;
+
+        public string Emoji
+        {
+            get => _emoji;
+            set
+            {
+                _emoji = value;
+                if (_image != null)
+                {
+                    global::Emoji.Wpf.Image.SetSource(_image, Emoji);
+                }
+            }
+        }
+
+        public EmojiContainer(Surface parent) : this(parent, "🙂", size: 64)
+        {
+        }
+
+        public EmojiContainer(Surface parent, string emoji, int size) : base(parent)
+        {
+            Emoji = emoji;
+            Width = size;
+            Height = size;
+            Init();
+        }
+
+        public override void OnDoubleClick()
+        {
+            var host = new ElementHost();
+            host.Dock = DockStyle.None;
+            var rect = GuiRectangle.GetGuiRectangle(Left, Top, Width, Height);
+            host.Width = rect.Width;
+            host.Height = rect.Height;
+            host.Left = rect.Left;
+            host.Top = rect.Top;
+
+            var picker = new Emoji.Wpf.Picker { Selection = Emoji };
+            picker.Picked += (o, args) =>
+            {
+                Emoji = args.Emoji;
+                _parent.Controls.Remove(host);
+
+            };
+            host.Child = picker;
+
+            if (_parent != null)
+            {
+                _parent.KeysLocked = true;
+                _parent.Controls.Add(host);
+            }
+
+            host.Show();
+            host.Focus();
+        }
+
+        protected override void OnDeserialized(StreamingContext streamingContext)
+        {
+            base.OnDeserialized(streamingContext);
+            Init();
+        }
+
+        private void Init()
+        {
+            CreateDefaultAdorners();
+            
+            // Create WPF control
+            _image = new System.Windows.Controls.Image();
+            global::Emoji.Wpf.Image.SetSource(_image, Emoji);
+        }
+
+        public override void Transform(System.Drawing.Drawing2D.Matrix matrix)
+        {
+            _rotateAngle += CalculateAngle(matrix);
+            _rotateAngle %= 360;
+            base.Transform(matrix);
+        }
+
+        public override void Draw(Graphics graphics, RenderMode rm)
+        {
+            graphics.SmoothingMode = SmoothingMode.HighQuality;
+            graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
+            graphics.CompositingQuality = CompositingQuality.HighQuality;
+            graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
+
+            var rect = GuiRectangle.GetGuiRectangle(Left, Top, Width, Height);
+
+            var iconSize = Math.Min(rect.Width, rect.Height);
+
+            if (iconSize > 0)
+            {
+                _image.Measure(new Size(iconSize, iconSize));
+                _image.Arrange(new Rect(0, 0, iconSize, iconSize));
+
+                var renderTargetBitmap = new RenderTargetBitmap(iconSize, iconSize, 96, 96, PixelFormats.Pbgra32);
+                renderTargetBitmap.Render(_image);
+
+                using var bitmap = BitmapFromSource(renderTargetBitmap);
+
+                if (_rotateAngle != 0)
+                {
+                    graphics.DrawImage(RotateImage(bitmap, _rotateAngle), Bounds);
+                    return;
+                }
+
+                graphics.DrawImage(bitmap, Bounds);
+            }
+        }
+        private Bitmap BitmapFromSource(BitmapSource bitmapSource)
+        {
+            var src = new FormatConvertedBitmap();
+            src.BeginInit();
+            src.Source = bitmapSource;
+            src.DestinationFormat = PixelFormats.Bgra32;
+            src.EndInit();
+
+            var bitmap = new Bitmap(src.PixelWidth, src.PixelHeight, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
+            var data = bitmap.LockBits(new Rectangle(new Point(0, 0), bitmap.Size), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
+            src.CopyPixels(Int32Rect.Empty, data.Scan0, data.Height * data.Stride, data.Stride);
+            bitmap.UnlockBits(data);
+
+            return bitmap;
+        }
+
+        private static Image RotateImage(Image img, float rotationAngle)
+        {
+            var bitmap = new Bitmap(img.Width, img.Height);
+
+            using var gfx = Graphics.FromImage(bitmap);
+            gfx.InterpolationMode = InterpolationMode.HighQualityBicubic;
+
+            gfx.TranslateTransform((float)bitmap.Width / 2, (float)bitmap.Height / 2);
+            gfx.RotateTransform(rotationAngle);
+            gfx.TranslateTransform(-(float)bitmap.Width / 2, -(float)bitmap.Height / 2);
+
+            gfx.DrawImage(img, new Point(0, 0));
+
+            return bitmap;
+        }
+    }
+}

src/Greenshot.Editor/Drawing/ImageContainer.cs

@@ -178,6 +178,8 @@ namespace Greenshot.Editor.Drawing
         /// </summary>
         /// <param name="matrix"></param>
         public override void Transform(Matrix matrix)
+        {
+            if (image != null)
             {
                 int rotateAngle = CalculateAngle(matrix);
                 // we currently assume only one transformation has been made.
@@ -191,6 +193,7 @@ namespace Greenshot.Editor.Drawing
                         image = ImageHelper.ApplyEffect(image, new RotateEffect(rotateAngle), tmpMatrix);
                     }
                 }
+            }
 
             base.Transform(matrix);
         }

src/Greenshot.Editor/Drawing/Surface.cs

@@ -1,4 +1,4 @@
-/*
+/*
  * Greenshot - a free and open source screenshot tool
  * Copyright (C) 2007-2021 Thomas Braun, Jens Klingen, Robin Krom
  *
@@ -748,6 +748,9 @@ namespace Greenshot.Editor.Drawing
                 case DrawingModes.None:
                     _undrawnElement = null;
                     break;
+                case DrawingModes.Emoji:
+                    _undrawnElement = new EmojiContainer(this);
+                    break;
             }
 
             if (_undrawnElement != null)
@@ -802,6 +805,15 @@ namespace Greenshot.Editor.Drawing
             return iconContainer;
         }
 
+        public IEmojiContainer AddEmojiContainer(string emoji, int x, int y, int size)
+        {
+            var iconContainer = new EmojiContainer(this, emoji, size);
+            iconContainer.Left = x;
+            iconContainer.Top = y;
+            AddElement(iconContainer);
+            return iconContainer;
+        }
+
         public ICursorContainer AddCursorContainer(Cursor cursor, int x, int y)
         {
             CursorContainer cursorContainer = new CursorContainer(this)

src/Greenshot.Editor/Forms/ImageEditorForm.Designer.cs

@@ -70,6 +70,7 @@ namespace Greenshot.Editor.Forms {
 			this.btnText = new GreenshotToolStripButton();
 			this.btnSpeechBubble = new GreenshotToolStripButton();
 			this.btnStepLabel = new GreenshotToolStripButton();
+            this.btnEmoji = new GreenshotToolStripButton();
             this.toolStripSeparator14 = new System.Windows.Forms.ToolStripSeparator();
 			this.btnHighlight = new GreenshotToolStripButton();
 			this.btnObfuscate = new GreenshotToolStripButton();
@@ -334,6 +335,7 @@ namespace Greenshot.Editor.Forms {
 									this.btnText,
 									this.btnSpeechBubble,
 									this.btnStepLabel,
+									this.btnEmoji,
 									this.toolStripSeparator14,
                                     this.btnHighlight,
 									this.btnObfuscate,
@@ -444,6 +446,16 @@ namespace Greenshot.Editor.Forms {
 			this.btnStepLabel.Name = "btnStepLabel";
 			this.btnStepLabel.Click += new System.EventHandler(this.BtnStepLabelClick);
             // 
+            // btnStepEmoji
+            // 
+            this.btnEmoji.CheckOnClick = true;
+            this.btnEmoji.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image;
+            this.btnEmoji.Image = ((System.Drawing.Image)(resources.GetObject("btnEmoji.Image")));
+            this.btnEmoji.ImageTransparentColor = System.Drawing.Color.Magenta;
+            this.btnEmoji.LanguageKey = "editor_emoji";
+            this.btnEmoji.Name = "btnEmoji";
+            this.btnEmoji.Click += new System.EventHandler(this.BtnEmojiClick);
+            // 
             // toolStripSeparator14
             // 
             this.toolStripSeparator14.Name = "toolStripSeparator14";
@@ -1928,6 +1940,7 @@ namespace Greenshot.Editor.Forms {
 		private GreenshotToolStripButton btnText;
 		private GreenshotToolStripButton btnSpeechBubble;
 		private GreenshotToolStripButton btnStepLabel;
+        private GreenshotToolStripButton btnEmoji;
         private GreenshotToolStripMenuItem drawLineToolStripMenuItem;
 		private GreenshotToolStripButton btnLine;
 		private GreenshotToolStripButton btnSettings;

src/Greenshot.Editor/Forms/ImageEditorForm.cs

@@ -269,7 +269,7 @@ namespace Greenshot.Editor.Forms
 
             _toolbarButtons = new[]
             {
-                btnCursor, btnRect, btnEllipse, btnText, btnLine, btnArrow, btnFreehand, btnHighlight, btnObfuscate, btnCrop, btnStepLabel, btnSpeechBubble
+                btnCursor, btnRect, btnEllipse, btnText, btnLine, btnArrow, btnFreehand, btnHighlight, btnObfuscate, btnCrop, btnStepLabel, btnSpeechBubble, btnEmoji
             };
             //toolbarDropDownButtons = new ToolStripDropDownButton[]{btnBlur, btnPixeliate, btnTextHighlighter, btnAreaHighlighter, btnMagnifier};
 
@@ -655,6 +655,12 @@ namespace Greenshot.Editor.Forms
             RefreshFieldControls();
         }
 
+        private void BtnEmojiClick(object sender, EventArgs e)
+        {
+            _surface.DrawingMode = DrawingModes.Emoji;
+            RefreshFieldControls();
+        }
+
         private void BtnLineClick(object sender, EventArgs e)
         {
             _surface.DrawingMode = DrawingModes.Line;

src/Greenshot.Editor/Forms/ImageEditorForm.resx

@@ -1107,4 +1107,7 @@
   <metadata name="zoomMenuStrip.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
     <value>782, 17</value>
   </metadata>
+  <data name="btnEmoji.Image" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\btnEmoji.Image.bmp;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
 </root>

src/Greenshot.Editor/Greenshot.Editor.csproj

@@ -4,6 +4,9 @@
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
   </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Emoji.Wpf" Version="0.3.3" />
+  </ItemGroup>
 
   <ItemGroup>
     <ProjectReference Include="..\Greenshot.Base\Greenshot.Base.csproj" />
@@ -81,4 +84,8 @@
       <DependentUpon>ImageEditorForm.cs</DependentUpon>
     </EmbeddedResource>
   </ItemGroup>
+
+  <ItemGroup>
+    <Folder Include="Resources\" />
+  </ItemGroup>
 </Project>

src/Greenshot/Languages/language-en-US.xml

@@ -305,6 +305,7 @@ All Greenshot features still work directly from the tray icon context menu witho
     
     <resource name="editor_counter">Add counter (I)</resource>
     <resource name="editor_speechbubble">Add speechbubble (S)</resource>
+    <resource name="editor_emoji">Add emoji</resource>
 
         <resource name="editor_resize">Resize</resource>
     <resource name="editor_resize_settings">Resize settings</resource>