TODO feature: Undo/Redo for canvas changes

McBitFont/CanvasHistory.cs

@@ -12,11 +12,13 @@ namespace McBitFont {
         public int Depth { get; set; }
         public int Index { get; set; }
         public int Count {
-            get { return stack.Count; }
+            get { return stack.Count - 1; }
         }
         public int Redos {
             get {
-                return Count - Index - 1;
+                var r = Count - Index - 1;
+
+                return r < 0 ? 0 : r;
             }
         }
         public int Undos {
@@ -26,9 +28,9 @@ namespace McBitFont {
         }
 
         
-        public CanvasHistory(int depth = 5, int index = -1) {
+        public CanvasHistory(int depth = 50) {
             Depth = depth;
-            Index = index;
+            Index = -1;
             stack = [];
         }
 
@@ -37,38 +39,47 @@ namespace McBitFont {
             Index = -1;
         }
 
-        public void Add(bool[,] data, bool useIndex = true) {
+        public void AddPre(MainForm.FrameMiniature f, bool useIndex = true) {
+            if (Count < 0) stack.Add(new bool[f.width, f.height]);
             if (Index < Count - 1) {
                 stack.RemoveRange(Index + 1, Count - Index - 1);
             }
-            stack.Add(data);
+            bool[,] d = new bool[f.width, f.height];
+            Array.Copy(f.data, d, f.data.Length);
+            stack.Insert(Count, d);
             if (useIndex) {
                 if (Count > Depth) stack.RemoveAt(0);
                 else Index++;
             }
         }
 
+        public void AddPost(MainForm.FrameMiniature f) {
+            var d = stack.ElementAt(Count);
+            Array.Copy(f.data, d, f.data.Length);
+        }
+
         public void ApplyAdded() {
-            if (Count > Depth)
             while (Count > Depth) stack.RemoveAt(0);
-            else Index = Count - 1;
+            Index = Count - 1;
         }
 
         public void Remove(bool useIndex = true) {
-            stack.RemoveAt(stack.Count - 1);
+            stack.RemoveAt(Count - 1);
             if (useIndex) Index--;
         }
 
-        public void Undo(ref bool[,] data) {
+        public void Undo(MainForm.FrameMiniature f) {
             if (Index < 0) return;
-            data = stack.ElementAt(Index);
+            var d = stack.ElementAt(Index);
+            Array.Copy(d, f.data, d.Length);
             Index--;
         }
 
-        public void Redo(ref bool[,] data) {
+        public void Redo(MainForm.FrameMiniature f) {
             if (Index >= Count - 1) return;
             Index++;
-            data = stack.ElementAt(Index);
+            var d = stack.ElementAt(Index + 1);
+            Array.Copy(d, f.data, d.Length);
         }
     }
 }

McBitFont/Form1.Designer.cs

@@ -85,7 +85,6 @@
             toolTip1 = new System.Windows.Forms.ToolTip(components);
             chkLeftSide = new System.Windows.Forms.CheckBox();
             chkTopSide = new System.Windows.Forms.CheckBox();
-            label3 = new System.Windows.Forms.Label();
             ((System.ComponentModel.ISupportInitialize)nudX).BeginInit();
             ((System.ComponentModel.ISupportInitialize)nudY).BeginInit();
             panel1.SuspendLayout();
@@ -346,7 +345,7 @@
             miniList.TabStop = false;
             miniList.TileSize = new System.Drawing.Size(50, 50);
             miniList.UseCompatibleStateImageBehavior = false;
-            miniList.SelectedIndexChanged += miniList_SelectedIndexChanged;
+            miniList.SelectedIndexChanged += MiniList_SelectedIndexChanged;
             // 
             // ilMiniatures
             // 
@@ -457,7 +456,7 @@
             saveAsToolStripMenuItem.Size = new System.Drawing.Size(184, 22);
             saveAsToolStripMenuItem.Text = "Save as";
             saveAsToolStripMenuItem.ToolTipText = "Save changes to another file";
-            saveAsToolStripMenuItem.Click += saveToolStripMenuItem_Click;
+            saveAsToolStripMenuItem.Click += SaveToolStripMenuItem_Click;
             // 
             // exitToolStripMenuItem
             // 
@@ -474,7 +473,7 @@
             // 
             editToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] { undoToolStripMenuItem, redoToolStripMenuItem, copyToolStripMenuItem, pasteToolStripMenuItem, prependSymbolToolStripMenuItem, appendSymbolToolStripMenuItem, removeSymbolToolStripMenuItem, removeBeforeToolStripMenuItem, removeAfterToolStripMenuItem, applyToolStripMenuItem });
             editToolStripMenuItem.Name = "editToolStripMenuItem";
-            editToolStripMenuItem.Size = new System.Drawing.Size(122, 20);
+            editToolStripMenuItem.Size = new System.Drawing.Size(39, 20);
             editToolStripMenuItem.Text = "Edit";
             editToolStripMenuItem.DropDownOpening += editToolStripMenuItem_DropDownOpening;
             // 
@@ -496,6 +495,7 @@
             redoToolStripMenuItem.Size = new System.Drawing.Size(215, 22);
             redoToolStripMenuItem.Text = "Redo";
             redoToolStripMenuItem.ToolTipText = "Redo canvas change";
+            redoToolStripMenuItem.Click += redoToolStripMenuItem_Click;
             // 
             // copyToolStripMenuItem
             // 
@@ -607,7 +607,7 @@
             // ClearToolStripMenuItem
             // 
             ClearToolStripMenuItem.Name = "ClearToolStripMenuItem";
-            ClearToolStripMenuItem.ShortcutKeyDisplayString = "Ctrl+W";
+            ClearToolStripMenuItem.ShortcutKeyDisplayString = "";
             ClearToolStripMenuItem.ShortcutKeys = System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.W;
             ClearToolStripMenuItem.Size = new System.Drawing.Size(197, 22);
             ClearToolStripMenuItem.Text = "Clear canvas";
@@ -618,7 +618,7 @@
             // 
             shiftUpToolStripMenuItem.Image = Properties.Resources.arrow_top;
             shiftUpToolStripMenuItem.Name = "shiftUpToolStripMenuItem";
-            shiftUpToolStripMenuItem.ShortcutKeyDisplayString = "Ctrl+Up";
+            shiftUpToolStripMenuItem.ShortcutKeyDisplayString = "";
             shiftUpToolStripMenuItem.ShortcutKeys = System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.Up;
             shiftUpToolStripMenuItem.Size = new System.Drawing.Size(197, 22);
             shiftUpToolStripMenuItem.Text = "Shift Up";
@@ -629,7 +629,7 @@
             // 
             shiftDownToolStripMenuItem.Image = Properties.Resources.arrow_down;
             shiftDownToolStripMenuItem.Name = "shiftDownToolStripMenuItem";
-            shiftDownToolStripMenuItem.ShortcutKeyDisplayString = "Ctrl+Down";
+            shiftDownToolStripMenuItem.ShortcutKeyDisplayString = "";
             shiftDownToolStripMenuItem.ShortcutKeys = System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.Down;
             shiftDownToolStripMenuItem.Size = new System.Drawing.Size(197, 22);
             shiftDownToolStripMenuItem.Text = "Shift Down";
@@ -640,7 +640,7 @@
             // 
             shiftLeftToolStripMenuItem.Image = Properties.Resources.arrow_back;
             shiftLeftToolStripMenuItem.Name = "shiftLeftToolStripMenuItem";
-            shiftLeftToolStripMenuItem.ShortcutKeyDisplayString = "Ctrl+Left";
+            shiftLeftToolStripMenuItem.ShortcutKeyDisplayString = "";
             shiftLeftToolStripMenuItem.ShortcutKeys = System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.Left;
             shiftLeftToolStripMenuItem.Size = new System.Drawing.Size(197, 22);
             shiftLeftToolStripMenuItem.Text = "Shift left";
@@ -651,7 +651,7 @@
             // 
             shiftRightToolStripMenuItem.Image = Properties.Resources.arrow_next;
             shiftRightToolStripMenuItem.Name = "shiftRightToolStripMenuItem";
-            shiftRightToolStripMenuItem.ShortcutKeyDisplayString = "Ctrl+Right";
+            shiftRightToolStripMenuItem.ShortcutKeyDisplayString = "";
             shiftRightToolStripMenuItem.ShortcutKeys = System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.Right;
             shiftRightToolStripMenuItem.Size = new System.Drawing.Size(197, 22);
             shiftRightToolStripMenuItem.Text = "Shift Right";
@@ -662,7 +662,7 @@
             // 
             invertToolStripMenuItem.Image = Properties.Resources.Ionic_Ionicons_Invert_mode_outline_16;
             invertToolStripMenuItem.Name = "invertToolStripMenuItem";
-            invertToolStripMenuItem.ShortcutKeyDisplayString = "Ctrl+I";
+            invertToolStripMenuItem.ShortcutKeyDisplayString = "";
             invertToolStripMenuItem.ShortcutKeys = System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.I;
             invertToolStripMenuItem.Size = new System.Drawing.Size(197, 22);
             invertToolStripMenuItem.Text = "Invert";
@@ -673,8 +673,7 @@
             // 
             mirrorXToolStripMenuItem.Image = Properties.Resources.Famfamfam_Silk_Shape_flip_horizontal_16;
             mirrorXToolStripMenuItem.Name = "mirrorXToolStripMenuItem";
-            mirrorXToolStripMenuItem.ShortcutKeyDisplayString = "Ctrl+X";
+            mirrorXToolStripMenuItem.ShortcutKeyDisplayString = "";
-            mirrorXToolStripMenuItem.ShortcutKeys = System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.X;
             mirrorXToolStripMenuItem.Size = new System.Drawing.Size(197, 22);
             mirrorXToolStripMenuItem.Text = "Mirror X";
             mirrorXToolStripMenuItem.ToolTipText = "Mirror by X axis (horizontal)";
@@ -684,8 +683,7 @@
             // 
             mirrorYToolStripMenuItem.Image = Properties.Resources.Famfamfam_Silk_Shape_flip_vertical_16;
             mirrorYToolStripMenuItem.Name = "mirrorYToolStripMenuItem";
-            mirrorYToolStripMenuItem.ShortcutKeyDisplayString = "Ctrl+Y";
+            mirrorYToolStripMenuItem.ShortcutKeyDisplayString = "";
-            mirrorYToolStripMenuItem.ShortcutKeys = System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.Y;
             mirrorYToolStripMenuItem.Size = new System.Drawing.Size(197, 22);
             mirrorYToolStripMenuItem.Text = "Mirror Y";
             mirrorYToolStripMenuItem.ToolTipText = "Mirror by Y axis (vertical)";
@@ -694,7 +692,7 @@
             // exportToolStripMenuItem
             // 
             exportToolStripMenuItem.Name = "exportToolStripMenuItem";
-            exportToolStripMenuItem.ShortcutKeyDisplayString = "Ctrl+E";
+            exportToolStripMenuItem.ShortcutKeyDisplayString = "";
             exportToolStripMenuItem.ShortcutKeys = System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.E;
             exportToolStripMenuItem.Size = new System.Drawing.Size(197, 22);
             exportToolStripMenuItem.Text = "Export";
@@ -761,21 +759,11 @@
             toolTip1.SetToolTip(chkTopSide, "Height changes will be made on Top/Bottom side");
             chkTopSide.UseVisualStyleBackColor = true;
             // 
-            // label3
-            // 
-            label3.AutoSize = true;
-            label3.Location = new System.Drawing.Point(645, 78);
-            label3.Name = "label3";
-            label3.Size = new System.Drawing.Size(17, 15);
-            label3.TabIndex = 21;
-            label3.Text = "h:";
-            // 
             // MainForm
             // 
             AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
             AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
             ClientSize = new System.Drawing.Size(915, 647);
-            Controls.Add(label3);
             Controls.Add(chkTopSide);
             Controls.Add(chkLeftSide);
             Controls.Add(btnBaseline);
@@ -874,7 +862,6 @@
         private System.Windows.Forms.ToolStripMenuItem removeBeforeToolStripMenuItem;
         private System.Windows.Forms.ToolStripMenuItem removeAfterToolStripMenuItem;
         private System.Windows.Forms.ToolStripMenuItem makeVarWidthToolStripMenuItem;
-        private System.Windows.Forms.Label label3;
         private System.Windows.Forms.ToolStripMenuItem undoToolStripMenuItem;
         private System.Windows.Forms.ToolStripMenuItem redoToolStripMenuItem;
     }

McBitFont/Form1.cs

@@ -68,7 +68,7 @@ namespace McBitFont {
 
         public MainForm() {
             InitializeComponent();
-            this.dotPanel.MouseWheel += new MouseEventHandler(this.dotPanel_MouseWheel);
+            this.dotPanel.MouseWheel += new MouseEventHandler(this.DotPanel_MouseWheel);
         }
 
         private void Form1_Load(object sender, EventArgs e) {
@@ -89,7 +89,7 @@ namespace McBitFont {
             miniList.Refresh();
             miniList.Items[0].Selected = true;
             miniList.Select();
-            f = copyFrame(frames.Find(x => x.code == 0));
+            f = CopyFrame(frames.Find(x => x.code == 0));
 
             ListViewItem_SetSpacing(miniList, 50 + 2, 50 + 22);
 
@@ -99,7 +99,7 @@ namespace McBitFont {
 
             // Chek for arguments
             if (Environment.GetCommandLineArgs().Length > 1) {
-                loadProject(Environment.GetCommandLineArgs()[1]);
+                LoadProject(Environment.GetCommandLineArgs()[1]);
             }
 
             Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
@@ -112,7 +112,7 @@ namespace McBitFont {
             return (int)(((ushort)lowPart) | (uint)(highPart << 16));
         }
 
-        FrameMiniature copyFrame(FrameMiniature frame) {
+        FrameMiniature CopyFrame(FrameMiniature frame) {
             var ff = new FrameMiniature(frame.code, frame.width, frame.height);
             Array.Copy(frame.data, ff.data, frame.data.Length);
             return ff;
@@ -124,7 +124,7 @@ namespace McBitFont {
             SendMessage(listview.Handle, LVM_SETICONSPACING, IntPtr.Zero, (IntPtr)MakeLong(leftPadding, topPadding));
         }
 
-        private void dotPanel_MouseWheel(object sender, MouseEventArgs e) {
+        private void DotPanel_MouseWheel(object sender, MouseEventArgs e) {
             int t = e.Delta / 120;
             if (e.Delta == 0) return;
             if (ModifierKeys.HasFlag(Keys.Control)) {
@@ -217,6 +217,9 @@ namespace McBitFont {
             w = pixelOffset + dotWidth * (cellSize + gap);
             h = pixelOffset + dotHeight * (cellSize + gap);
             cbZoom_SelectedIndexChanged(cbZoom, null);
+
+            // Re-create history object
+            history = new CanvasHistory();
         }
 
         private void cbZoom_SelectedIndexChanged(object sender, EventArgs e) {
@@ -248,6 +251,8 @@ namespace McBitFont {
 
         private void btnShiftLeft_Click(object sender, EventArgs e) {
             bool c;
+
+            history.AddPre(f);
             for (int j = 0; j < dotHeight; j++) {
                 c = f.data[0, j];
                 for (int i = 0; i < dotWidth; i++) {
@@ -258,12 +263,16 @@ namespace McBitFont {
                     }
                 }
             }
+            history.AddPost(f);
+            CheckHistoryButtons();
             modified = true;
             dotPanel.Refresh();
         }
 
         private void btnShiftRight_Click(object sender, EventArgs e) {
             bool c;
+
+            history.AddPre(f);
             for (int j = 0; j < dotHeight; j++) {
                 c = f.data[dotWidth - 1, j];
                 for (int i = dotWidth - 1; i >= 0; i--) {
@@ -274,6 +283,8 @@ namespace McBitFont {
                     }
                 }
             }
+            history.AddPost(f);
+            CheckHistoryButtons();
             modified = true;
             dotPanel.Refresh();
         }
@@ -313,8 +324,7 @@ namespace McBitFont {
             // history management
             if (e.Button != MouseButtons.None && !mouseDown) {
                 mouseDown = true;
-                history.Add(f.data, false);
+                history.AddPre(f, false);
-                label3.Text += history.Count.ToString();
             }
             if (e.Button == MouseButtons.None && mouseDown) {
                 mouseDown = false;
@@ -323,8 +333,9 @@ namespace McBitFont {
                 } else {
                     fChanged = false;
                     history.ApplyAdded();
+                    history.AddPost(f);
                 }
-                label3.Text += history.Count.ToString();
+                CheckHistoryButtons();
             }
 
             // Paint black / white
@@ -351,6 +362,8 @@ namespace McBitFont {
 
         private void btnShiftUp_Click(object sender, EventArgs e) {
             bool c;
+
+            history.AddPre(f);
             for (int i = 0; i < dotWidth; i++) {
                 c = f.data[i, 0];
                 for (int j = 0; j < dotHeight; j++) {
@@ -361,12 +374,16 @@ namespace McBitFont {
                     }
                 }
             }
+            history.AddPost(f);
+            CheckHistoryButtons();
             modified = true;
             dotPanel.Refresh();
         }
 
         private void btnShiftDown_Click(object sender, EventArgs e) {
             bool c;
+
+            history.AddPre(f);
             for (int i = 0; i < dotWidth; i++) {
                 c = f.data[i, dotHeight - 1];
                 for (int j = dotHeight - 1; j >= 0; j--) {
@@ -377,16 +394,21 @@ namespace McBitFont {
                     }
                 }
             }
+            history.AddPost(f);
+            CheckHistoryButtons();
             modified = true;
             dotPanel.Refresh();
         }
 
         private void btnInvert_Click(object sender, EventArgs e) {
+            history.AddPre(f);
             for (int i = 0; i < dotWidth; i++) {
                 for (int j = 0; j < dotHeight; j++) {
                     f.data[i, j] = !f.data[i, j];
                 }
             }
+            history.AddPost(f);
+            CheckHistoryButtons();
             modified = true;
             dotPanel.Refresh();
         }
@@ -395,6 +417,7 @@ namespace McBitFont {
             int a, b, j;
             bool c;
 
+            history.AddPre(f);
             for (j = 0; j < dotHeight; j++) {
                 a = 0;
                 b = dotWidth - 1;
@@ -406,6 +429,8 @@ namespace McBitFont {
                     b--;
                 }
             }
+            history.AddPost(f);
+            CheckHistoryButtons();
             modified = true;
             dotPanel.Refresh();
         }
@@ -414,6 +439,7 @@ namespace McBitFont {
             int a, b, i;
             bool c;
 
+            history.AddPre(f);
             for (i = 0; i < dotWidth; i++) {
                 a = 0;
                 b = dotHeight - 1;
@@ -425,6 +451,8 @@ namespace McBitFont {
                     b--;
                 }
             }
+            history.AddPost(f);
+            CheckHistoryButtons();
             modified = true;
             dotPanel.Refresh();
         }
@@ -434,7 +462,7 @@ namespace McBitFont {
                 if (MessageBox.Show("Current symbol is modified.\nDo you want to save the changes?", "Symbol was modified!", MessageBoxButtons.YesNo) == DialogResult.Yes) {
                     saveFrame();
                 } else {
-                    f = copyFrame(frames.Find(x => x.code == f.code));
+                    f = CopyFrame(frames.Find(x => x.code == f.code));
                 }
                 modified = false;
             }
@@ -609,7 +637,7 @@ namespace McBitFont {
                     var sss = decodeSymbol(ff.code);
                     miniList.Items.Add(s, s + ' ' + append + sss, s);
                 }
-                f = copyFrame(frames.First());
+                f = CopyFrame(frames.First());
                 dotPanel.Refresh();
                 miniList.Refresh();
                 form.Dispose();
@@ -626,7 +654,7 @@ namespace McBitFont {
             }
         }
 
-        private void miniList_SelectedIndexChanged(object sender, EventArgs e) {
+        private void MiniList_SelectedIndexChanged(object sender, EventArgs e) {
             if (miniList.FocusedItem == null) return;
             checkModifiedFrame();
             if (miniList.SelectedItems.Count == 0) {
@@ -644,7 +672,7 @@ namespace McBitFont {
 
             var sel = miniList.SelectedItems[0];
             int code = Convert.ToInt32(sel.ImageKey);
-            FrameMiniature ff = copyFrame(frames.Find(x => x.code == code));
+            FrameMiniature ff = CopyFrame(frames.Find(x => x.code == code));
             nudX.Value = ff.width;
             nudY.Value = ff.height;
             f = ff;
@@ -671,14 +699,14 @@ namespace McBitFont {
             else pasteToolStripMenuItem.Enabled = false;
         }
 
-        private void saveToolStripMenuItem_Click(object sender, EventArgs e) {
+        private void SaveToolStripMenuItem_Click(object sender, EventArgs e) {
             checkModifiedFrame();
             if (dlgSave.ShowDialog() == DialogResult.OK) {
-                saveProject(dlgSave.FileName);
+                SaveProject(dlgSave.FileName);
             }
         }
 
-        private void loadProject(string filename) {
+        private void LoadProject(string filename) {
             SaveBlock sav;
 
             using (FileStream fs = File.Open(filename, FileMode.Open)) {
@@ -706,7 +734,7 @@ namespace McBitFont {
             dotResize((int)nudX.Value, (int)nudY.Value);
             nudX.ValueChanged += nudX_ValueChanged;
             nudY.ValueChanged += nudY_ValueChanged;
-            f = copyFrame(frames.First());
+            f = CopyFrame(frames.First());
             dotPanel.Refresh();
             miniList.Refresh();
             modified = false;
@@ -719,7 +747,7 @@ namespace McBitFont {
             fbuffer = false;
         }
 
-        private void saveProject(string filename) {
+        private void SaveProject(string filename) {
             SaveBlock sav;
             sav.monospaced = monospaced;
             sav.frames = frames;
@@ -744,7 +772,7 @@ namespace McBitFont {
                 }
             }
             if (dlgOpen.ShowDialog() == DialogResult.OK) {
-                loadProject(dlgOpen.FileName);
+                LoadProject(dlgOpen.FileName);
             }
         }
 
@@ -792,7 +820,7 @@ namespace McBitFont {
 
         private void copyToolStripMenuItem_Click(object sender, EventArgs e) {
             fbuffer = true;
-            fbuf = copyFrame(f);
+            fbuf = CopyFrame(f);
             pasteToolStripMenuItem.Enabled = true;
         }
 
@@ -838,13 +866,16 @@ namespace McBitFont {
                 saveAsToolStripMenuItem.PerformClick();
             } else {
                 checkModifiedFrame();
-                saveProject(prjFileName);
+                SaveProject(prjFileName);
             }
 
         }
 
         private void btnClear_Click(object sender, EventArgs e) {
+            history.AddPre(f);
             Array.Clear(f.data, 0, f.data.Length);
+            history.AddPost(f);
+            CheckHistoryButtons();
             modified = true;
             dotPanel.Refresh();
         }
@@ -901,7 +932,7 @@ namespace McBitFont {
             prjModified = true;
         }
 
-        private void editToolStripMenuItem_DropDownOpening(object sender, EventArgs e) {
+        public void CheckHistoryButtons() {
             undoToolStripMenuItem.Enabled = history.Undos > 0;
             redoToolStripMenuItem.Enabled = history.Redos > 0;
 
@@ -909,9 +940,20 @@ namespace McBitFont {
             redoToolStripMenuItem.Text = "Redo (" + history.Redos + ")";
         }
 
+        private void editToolStripMenuItem_DropDownOpening(object sender, EventArgs e) {
+            CheckHistoryButtons();
+        }
+
         private void undoToolStripMenuItem_Click(object sender, EventArgs e) {
-            history.Undo(ref f.data);
+            history.Undo(f);
             dotPanel.Refresh();
+            CheckHistoryButtons();
+        }
+
+        private void redoToolStripMenuItem_Click(object sender, EventArgs e) {
+            history.Redo(f);
+            dotPanel.Refresh();
+            CheckHistoryButtons();
         }
     }
 }

TODO.txt

@@ -1,5 +1,6 @@
 Application:
 V Migrate from .Net Framework 4.7 to .NET 9
+V New Save file format! Use McBitFont v1.7 to convert old save files to the new format.
 V Better quality pictures in symbol list
 
 Functionality:
@@ -8,7 +9,7 @@ V Delete symbols before/after selected
 - Shift all symbols on code line (change symbol codes)
 - Specify starting code (extends the shift)
 V Ability to make monospaced font a variable width one
-- Undo/Redo
+V Undo/Redo for canvas changes
 - Image import from a file
 - Import from a text array
 - Rectangle selection to mass-paint, shift and mirror pixels