Add Edit > Clear strokes (1.7.7)

CHANGELOG.md

@@ -17,6 +17,13 @@ broke. The heading is parsed by `scripts/release-notes.ps1`, so keep its shape;
 under it is ordinary Markdown, and the renderer handles paragraphs, lists, links, `code`
 and **bold**.
 
+## 1.7.7 - 29 October 2026
+
+### Clear strokes
+**Edit → Clear strokes** removes every ink stroke on the board in one step, including strokes
+linked to a container, and leaves images, text, shapes, and frames in place. Undo brings the
+strokes back, so a board can be exported without its ink and then restored.
+
 ## 1.7.6 - 20 October 2026
 
 ### Panning with a mouse

Directory.Build.props

@@ -5,7 +5,7 @@
       scripts/build-installer.ps1 both read it from here, so releasing is a reviewed change
       to this line rather than an edit in a pipeline variable group.
     -->
-    <VersionPrefix>1.7.6</VersionPrefix>
+    <VersionPrefix>1.7.7</VersionPrefix>
     <LangVersion>latest</LangVersion>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>

README.md

@@ -219,6 +219,7 @@ Use **Copy settings** after finding a useful combination so the exact values can
 | Ctrl+E | Export the board to PowerPoint or PDF |
 | Delete | Delete the selected container and its linked strokes |
 | Ctrl+A / Ctrl+Shift+A | Select everything an area could take, or the ink strokes only |
+| Edit > Clear strokes | Remove every ink stroke on the board, including strokes linked to containers, as one step that Undo restores. Letter S while the Edit strip is open |
 | Ctrl+D | Duplicate the selection 24 pixels down and to the right, and select the copy |
 | … on the property bar | Delete, Copy, Duplicate, and the four depth commands for whatever is selected |
 | Alt+L | Laser pointer |

site/guide.html

@@ -911,7 +911,7 @@ <h3 id="ink">Ink and tools</h3>
       <div class="toolrow">
         <svg class="glyph" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true"><path d="m15.87 2.67 4.97 4.97c.88.88.88 2.3 0 3.18l-8.68 8.68h6.1c.37 0 .69.28.74.65v.1c0 .38-.28.7-.64.74l-.1.01H9.83a2.24 2.24 0 0 1-1.71-.65l-4.97-4.97a2.25 2.25 0 0 1 0-3.18l9.53-9.53c.88-.88 2.3-.88 3.18 0Zm-10.16 9.1-1.49 1.49c-.3.29-.3.76 0 1.06l4.97 4.96c.15.15.34.22.53.22h.07a.75.75 0 0 0 .46-.22l1.49-1.48-6.03-6.03Zm8.04-8.04L6.77 10.7l6.03 6.03 6.98-6.98c.29-.3.29-.77 0-1.06L14.8 3.73a.75.75 0 0 0-1.06 0Z"/></svg>
         <span class="name">Eraser</span>
-        <span class="role">Removes whole strokes. The eraser end of a pen does the same — and so does the upper side button, because Windows reports the two identically — and hovering with it draws a dashed square around what a tap would clear.</span>
+        <span class="role">Removes whole strokes. The eraser end of a pen does the same — and so does the upper side button, because Windows reports the two identically — and hovering with it draws a dashed square around what a tap would clear. <span class="ui">Edit → Clear strokes</span> removes every stroke on the board at once.</span>
       </div>
       <div class="toolrow">
         <svg class="glyph" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true"><path d="M15.28 6.03c-.3.3-.77.3-1.06 0l-1.47-1.47v3.69a.75.75 0 0 1-1.5 0V4.56L9.78 6.03a.75.75 0 0 1-1.06-1.06l2.75-2.75a.75.75 0 0 1 1.06 0l2.75 2.75c.3.3.3.77 0 1.06Zm-9.25 8.19a.75.75 0 1 1-1.06 1.06l-2.75-2.75a.75.75 0 0 1 0-1.06l2.75-2.75a.75.75 0 0 1 1.06 1.06l-1.47 1.47h3.69a.75.75 0 0 1 0 1.5H4.56l1.47 1.47Zm11.94 1.06a.75.75 0 0 1 0-1.06l1.47-1.47h-3.69a.75.75 0 0 1 0-1.5h3.69l-1.47-1.47a.75.75 0 0 1 1.06-1.06l2.75 2.75a.75.75 0 0 1 0 1.06l-2.75 2.75c-.3.3-.77.3-1.06 0Zm-2.69 2.69a.75.75 0 0 0-1.06 0l-1.47 1.47v-3.69a.75.75 0 0 0-1.5 0v3.69l-1.47-1.47a.75.75 0 0 0-1.06 1.06l2.75 2.75a.75.75 0 0 0 1.06 0l2.75-2.75c.3-.3.3-.77 0-1.06Z"/></svg>

site/shortcuts.html

@@ -134,7 +134,7 @@ <h2><span class="secico" aria-hidden="true"><svg viewBox="0 0 24 24" fill="none"
       <div class="keyrow"><span><kbd>Alt</kbd><span class="plus">+</span><kbd>L</kbd></span><span class="act">Laser pointer.</span></div>
       <div class="keyrow"><span><kbd>F11</kbd></span><span class="act">Fill the current monitor and hide the title and tabs. Press again or <kbd>Escape</kbd> to leave.</span></div>
       <div class="keyrow"><span><kbd>Ctrl</kbd><span class="plus">+</span><kbd>F11</kbd></span><span class="act">Canvas only: hide the title and tabs, keep this window’s size and place. Press again or <kbd>Escape</kbd> to leave.</span></div>
-      <div class="keyrow"><span><kbd>Alt</kbd><span class="plus">+</span><kbd>F</kbd> <span class="plus">/</span> <kbd>E</kbd> <span class="plus">/</span> <kbd>V</kbd> <span class="plus">/</span> <kbd>I</kbd> <span class="plus">/</span> <kbd>H</kbd></span><span class="act">Open or switch the File, Edit, View, Insert, or Help strip. Alt always selects a tab. With a strip open, letters without Alt run a command. File: N New, O Open, S Save, A Save As, I Import, E Export. Edit: Z Undo, Y Redo, C Copy, V Paste. View: F Full screen, C Canvas only, G Grid, B Bring to front, W Bring forward, K Send backward, S Send to back, A Frame, H Show frames, L LiveView, Z Freeze, D Disconnect, R Reconnect. Insert: T Text, P Palette. Help: P Preferences, A About. Left, right, Home, and End move between commands.</span></div>
+      <div class="keyrow"><span><kbd>Alt</kbd><span class="plus">+</span><kbd>F</kbd> <span class="plus">/</span> <kbd>E</kbd> <span class="plus">/</span> <kbd>V</kbd> <span class="plus">/</span> <kbd>I</kbd> <span class="plus">/</span> <kbd>H</kbd></span><span class="act">Open or switch the File, Edit, View, Insert, or Help strip. Alt always selects a tab. With a strip open, letters without Alt run a command. File: N New, O Open, S Save, A Save As, I Import, E Export. Edit: Z Undo, Y Redo, C Copy, V Paste, S Clear strokes. View: F Full screen, C Canvas only, G Grid, B Bring to front, W Bring forward, K Send backward, S Send to back, A Frame, H Show frames, L LiveView, Z Freeze, D Disconnect, R Reconnect. Insert: T Text, P Palette. Help: P Preferences, A About. Left, right, Home, and End move between commands.</span></div>
     </div>
   </section>
 

src/SQLBI.Whiteboard/MainWindow.xaml.cs

@@ -617,6 +617,7 @@ private void Document_Changed(object? sender, EventArgs e)
         }
 
         SessionBar.SetFramesChecked(_document.ShowFrames);
+        SessionBar.SetClearStrokesEnabled(_document.Objects.Any(item => item is InkStrokeObject));
         PublishSelection();
         SceneSurface.InvalidateVisual();
         UpdateLiveViewActionOverlay();
@@ -4163,6 +4164,30 @@ private void DeleteSelection()
         SceneSurface.InvalidateVisual();
     }
 
+    /// <summary>
+    /// Every ink stroke on the board, including those linked to a container, as
+    /// one step, so one undo brings them all back. The rest of the selection
+    /// stays selected.
+    /// </summary>
+    private void ClearStrokes()
+    {
+        if (_textEditBefore is not null ||
+            _labelEditBefore is not null ||
+            _shapeEditBefore is not null)
+        {
+            return;
+        }
+
+        BoardObject[] strokes = _document.Objects.OfType<InkStrokeObject>().ToArray<BoardObject>();
+        if (strokes.Length == 0)
+        {
+            return;
+        }
+
+        _history.Execute(DeleteCommandFor(strokes), _document);
+        SceneSurface.InvalidateVisual();
+    }
+
     /// <summary>
     /// A copy of the selection, 24 screen pixels down and to the right of it and
     /// above everything on the board, which becomes the selection: pressing the
@@ -7307,6 +7332,9 @@ private void SessionChrome_CommandRequested(SessionCommand command)
             case SessionCommand.Paste:
                 PasteButton_Click(this, new RoutedEventArgs());
                 break;
+            case SessionCommand.ClearStrokes:
+                ClearStrokes();
+                break;
             case SessionCommand.FullScreen:
                 SetChromeMode(
                     _chromeMode == SessionChromeMode.FullScreen

src/SQLBI.Whiteboard/SessionChrome.xaml

@@ -222,6 +222,24 @@
                                            Text="Ctrl+V" />
                             </StackPanel>
                         </Button>
+                        <Button x:Name="ClearStrokesButton"
+                                Style="{StaticResource SessionCommandButton}"
+                                ToolTip="Remove every ink stroke from the board"
+                                Tag="ClearStrokes"
+                                Click="Command_Click">
+                            <StackPanel HorizontalAlignment="Center">
+                                <Path Width="18"
+                                      Height="18"
+                                      Stretch="Uniform"
+                                      Fill="{Binding Foreground, RelativeSource={RelativeSource AncestorType=Button}}"
+                                      Data="{StaticResource EraserGeometry}" />
+                                <TextBlock Margin="0,4,0,0"
+                                           HorizontalAlignment="Center"
+                                           Text="Clear strokes" />
+                                <TextBlock Style="{StaticResource SessionShortcutHint}"
+                                           Text="S" />
+                            </StackPanel>
+                        </Button>
                     </StackPanel>
                     <StackPanel x:Name="ViewRow"
                                 Orientation="Horizontal"

src/SQLBI.Whiteboard/SessionChrome.xaml.cs

@@ -22,6 +22,7 @@ public enum SessionCommand
     Redo,
     Copy,
     Paste,
+    ClearStrokes,
     FullScreen,
     CanvasOnly,
     ToggleGrid,
@@ -50,6 +51,7 @@ public SessionChrome()
     {
         InitializeComponent();
         SetEditEnabled(canUndo: false, canRedo: false);
+        SetClearStrokesEnabled(hasStrokes: false);
         SetLiveViewCommands(selected: false, hasTarget: false, frozen: false);
         SetZOrderEnabled(canBringToFront: false, canSendToBack: false);
     }
@@ -107,6 +109,16 @@ public void SetEditEnabled(bool canUndo, bool canRedo)
         RedoButton.IsEnabled = canRedo;
     }
 
+    public void SetClearStrokesEnabled(bool hasStrokes)
+    {
+        if (ClearStrokesButton is null)
+        {
+            return;
+        }
+
+        ClearStrokesButton.IsEnabled = hasStrokes;
+    }
+
     /// <summary>
     /// The four depth commands need two flags, because a selection can be brought
     /// to the front exactly when it has something above it to pass, and sent to
@@ -493,6 +505,7 @@ item.Tag is string name &&
             'Y' when EditRow.Visibility == Visibility.Visible => SessionCommand.Redo,
             'C' when EditRow.Visibility == Visibility.Visible => SessionCommand.Copy,
             'V' when EditRow.Visibility == Visibility.Visible => SessionCommand.Paste,
+            'S' when EditRow.Visibility == Visibility.Visible => SessionCommand.ClearStrokes,
             'F' when ViewRow.Visibility == Visibility.Visible => SessionCommand.FullScreen,
             'C' when ViewRow.Visibility == Visibility.Visible => SessionCommand.CanvasOnly,
             'G' when ViewRow.Visibility == Visibility.Visible => SessionCommand.ToggleGrid,