Remove unused Command::clone() member function

src/app/commands/cmd_about.cpp

@@ -23,7 +23,6 @@ using namespace ui;
 class AboutCommand : public Command {
 public:
   AboutCommand();
-  Command* clone() const override { return new AboutCommand(*this); }
 
 protected:
   void onExecute(Context* context) override;

src/app/commands/cmd_advanced_mode.cpp

@@ -26,7 +26,6 @@ using namespace ui;
 class AdvancedModeCommand : public Command {
 public:
   AdvancedModeCommand();
-  Command* clone() const override { return new AdvancedModeCommand(*this); }
 
 protected:
   void onExecute(Context* context) override;

src/app/commands/cmd_background_from_layer.cpp

@@ -22,7 +22,6 @@ namespace app {
 class BackgroundFromLayerCommand : public Command {
 public:
   BackgroundFromLayerCommand();
-  Command* clone() const override { return new BackgroundFromLayerCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_cancel.cpp

@@ -26,7 +26,6 @@ public:
   };
 
   CancelCommand();
-  Command* clone() const override { return new CancelCommand(*this); }
 
 protected:
   bool onNeedsParams() const override { return true; }

src/app/commands/cmd_canvas_size.cpp

@@ -271,7 +271,6 @@ private:
 class CanvasSizeCommand : public Command {
 public:
   CanvasSizeCommand();
-  Command* clone() const override { return new CanvasSizeCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_cel_properties.cpp

@@ -273,7 +273,6 @@ private:
 class CelPropertiesCommand : public Command {
 public:
   CelPropertiesCommand();
-  Command* clone() const override { return new CelPropertiesCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_change_pixel_format.cpp

@@ -335,7 +335,6 @@ private:
 class ChangePixelFormatCommand : public Command {
 public:
   ChangePixelFormatCommand();
-  Command* clone() const override { return new ChangePixelFormatCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_clear.cpp

@@ -17,7 +17,6 @@ namespace app {
 class ClearCommand : public Command {
 public:
   ClearCommand();
-  Command* clone() const override { return new ClearCommand(*this); }
 
 protected:
   bool onEnabled(Context* ctx) override;

src/app/commands/cmd_clear_cel.cpp

@@ -24,7 +24,6 @@ namespace app {
 class ClearCelCommand : public Command {
 public:
   ClearCelCommand();
-  Command* clone() const override { return new ClearCelCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_close_file.cpp

@@ -32,8 +32,6 @@ public:
     : Command(CommandId::CloseFile(), CmdUIOnlyFlag) {
   }
 
-  Command* clone() const override { return new CloseFileCommand(*this); }
-
 protected:
 
   bool onEnabled(Context* context) override {
@@ -57,8 +55,6 @@ public:
     m_quitting = false;
   }
 
-  Command* clone() const override { return new CloseAllFilesCommand(*this); }
-
 protected:
 
   void onLoadParams(const Params& params) override {

src/app/commands/cmd_color_quantization.cpp

@@ -33,7 +33,6 @@ namespace app {
 class ColorQuantizationCommand : public Command {
 public:
   ColorQuantizationCommand();
-  Command* clone() const override { return new ColorQuantizationCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_contiguous_fill.cpp

@@ -18,7 +18,6 @@ namespace app {
 class ContiguousFillCommand : public Command {
 public:
   ContiguousFillCommand();
-  Command* clone() const override { return new ContiguousFillCommand(*this); }
 
 protected:
   bool onChecked(Context* context) override;

src/app/commands/cmd_copy.cpp

@@ -17,7 +17,6 @@ namespace app {
 class CopyCommand : public Command {
 public:
   CopyCommand();
-  Command* clone() const override { return new CopyCommand(*this); }
 
 protected:
   bool onEnabled(Context* ctx) override;

src/app/commands/cmd_copy_cel.cpp

@@ -19,7 +19,6 @@ namespace app {
 class CopyCelCommand : public Command {
 public:
   CopyCelCommand();
-  Command* clone() const override { return new CopyCelCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_copy_merged.cpp

@@ -17,7 +17,6 @@ namespace app {
 class CopyMergedCommand : public Command {
 public:
   CopyMergedCommand();
-  Command* clone() const override { return new CopyMergedCommand(*this); }
 
 protected:
   bool onEnabled(Context* ctx) override;

src/app/commands/cmd_crop.cpp

@@ -25,7 +25,6 @@ namespace app {
 class CropSpriteCommand : public Command {
 public:
   CropSpriteCommand();
-  Command* clone() const override { return new CropSpriteCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;
@@ -86,7 +85,6 @@ void CropSpriteCommand::onExecute(Context* context)
 class AutocropSpriteCommand : public Command {
 public:
   AutocropSpriteCommand();
-  Command* clone() const override { return new AutocropSpriteCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_cut.cpp

@@ -17,7 +17,6 @@ namespace app {
 class CutCommand : public Command {
 public:
   CutCommand();
-  Command* clone() const override { return new CutCommand(*this); }
 
 protected:
   bool onEnabled(Context* ctx) override;

src/app/commands/cmd_deselect_mask.cpp

@@ -21,7 +21,6 @@ namespace app {
 class DeselectMaskCommand : public Command {
 public:
   DeselectMaskCommand();
-  Command* clone() const override { return new DeselectMaskCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_discard_brush.cpp

@@ -22,7 +22,6 @@ namespace app {
 class DiscardBrushCommand : public Command {
 public:
   DiscardBrushCommand();
-  Command* clone() const override { return new DiscardBrushCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_duplicate_layer.cpp

@@ -27,7 +27,6 @@ namespace app {
 class DuplicateLayerCommand : public Command {
 public:
   DuplicateLayerCommand();
-  Command* clone() const override { return new DuplicateLayerCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_duplicate_sprite.cpp

@@ -29,7 +29,6 @@ using namespace ui;
 class DuplicateSpriteCommand : public Command {
 public:
   DuplicateSpriteCommand();
-  Command* clone() const override { return new DuplicateSpriteCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_duplicate_view.cpp

@@ -21,7 +21,6 @@ namespace app {
 class DuplicateViewCommand : public Command {
 public:
   DuplicateViewCommand();
-  Command* clone() const override { return new DuplicateViewCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_exit.cpp

@@ -22,7 +22,6 @@ namespace app {
 class ExitCommand : public Command {
 public:
   ExitCommand();
-  Command* clone() const override { return new ExitCommand(*this); }
 
 protected:
   void onExecute(Context* context) override;

src/app/commands/cmd_export_sprite_sheet.cpp

@@ -590,7 +590,6 @@ struct ExportSpriteSheetParams : public NewParams {
 class ExportSpriteSheetCommand : public CommandWithNewParams<ExportSpriteSheetParams> {
 public:
   ExportSpriteSheetCommand();
-  Command* clone() const override { return new ExportSpriteSheetCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_eyedropper.h

@@ -23,7 +23,6 @@ namespace app {
   class EyedropperCommand : public Command {
   public:
     EyedropperCommand();
-    Command* clone() const override { return new EyedropperCommand(*this); }
 
     // Returns the color in the given sprite pos.
     void pickSample(const Site& site,

src/app/commands/cmd_fill_and_stroke.cpp

@@ -29,7 +29,6 @@ class FillCommand : public Command {
 public:
   enum Type { Fill, Stroke };
   FillCommand(Type type);
-  Command* clone() const override { return new FillCommand(*this); }
 protected:
   bool onEnabled(Context* ctx) override;
   void onExecute(Context* ctx) override;

src/app/commands/cmd_fit_screen.cpp

@@ -19,7 +19,6 @@ namespace app {
 class FitScreenCommand : public Command {
 public:
   FitScreenCommand();
-  Command* clone() const override { return new FitScreenCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_flatten_layers.cpp

@@ -25,7 +25,6 @@ namespace app {
 class FlattenLayersCommand : public Command {
 public:
   FlattenLayersCommand();
-  Command* clone() const override { return new FlattenLayersCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_flip.h

@@ -16,7 +16,6 @@ namespace app {
   class FlipCommand : public Command {
   public:
     FlipCommand();
-    Command* clone() const override { return new FlipCommand(*this); }
 
     doc::algorithm::FlipType getFlipType() const { return m_flipType; }
 

src/app/commands/cmd_frame_properties.cpp

@@ -29,7 +29,6 @@ using namespace ui;
 class FramePropertiesCommand : public Command {
 public:
   FramePropertiesCommand();
-  Command* clone() const override { return new FramePropertiesCommand(*this); }
 
 protected:
   bool onNeedsParams() const override { return true; }

src/app/commands/cmd_frame_tag_properties.cpp

@@ -31,7 +31,6 @@ using namespace ui;
 class FrameTagPropertiesCommand : public Command {
 public:
   FrameTagPropertiesCommand();
-  Command* clone() const override { return new FrameTagPropertiesCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_fullscreen_preview.cpp

@@ -256,7 +256,6 @@ private:
 class FullscreenPreviewCommand : public Command {
 public:
   FullscreenPreviewCommand();
-  Command* clone() const override { return new FullscreenPreviewCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_goto_frame.cpp

@@ -51,7 +51,6 @@ class GotoFirstFrameCommand : public GotoCommand {
 public:
   GotoFirstFrameCommand()
     : GotoCommand(CommandId::GotoFirstFrame()) { }
-  Command* clone() const override { return new GotoFirstFrameCommand(*this); }
 
 protected:
   frame_t onGetFrame(Editor* editor) override {
@@ -63,7 +62,6 @@ class GotoFirstFrameInTagCommand : public GotoCommand {
 public:
   GotoFirstFrameInTagCommand()
     : GotoCommand(CommandId::GotoFirstFrameInTag()) { }
-  Command* clone() const override { return new GotoFirstFrameInTagCommand(*this); }
 
 protected:
   frame_t onGetFrame(Editor* editor) override {
@@ -80,7 +78,6 @@ class GotoPreviousFrameCommand : public GotoCommand {
 public:
   GotoPreviousFrameCommand()
     : GotoCommand(CommandId::GotoPreviousFrame()) { }
-  Command* clone() const override { return new GotoPreviousFrameCommand(*this); }
 
 protected:
   frame_t onGetFrame(Editor* editor) override {
@@ -94,7 +91,6 @@ protected:
 class GotoNextFrameCommand : public GotoCommand {
 public:
   GotoNextFrameCommand() : GotoCommand(CommandId::GotoNextFrame()) { }
-  Command* clone() const override { return new GotoNextFrameCommand(*this); }
 
 protected:
   frame_t onGetFrame(Editor* editor) override {
@@ -108,7 +104,6 @@ protected:
 class GotoNextFrameWithSameTagCommand : public GotoCommand {
 public:
   GotoNextFrameWithSameTagCommand() : GotoCommand(CommandId::GotoNextFrameWithSameTag()) { }
-  Command* clone() const override { return new GotoNextFrameWithSameTagCommand(*this); }
 
 protected:
   frame_t onGetFrame(Editor* editor) override {
@@ -127,7 +122,6 @@ protected:
 class GotoPreviousFrameWithSameTagCommand : public GotoCommand {
 public:
   GotoPreviousFrameWithSameTagCommand() : GotoCommand(CommandId::GotoPreviousFrameWithSameTag()) { }
-  Command* clone() const override { return new GotoPreviousFrameWithSameTagCommand(*this); }
 
 protected:
   frame_t onGetFrame(Editor* editor) override {
@@ -146,7 +140,6 @@ protected:
 class GotoLastFrameCommand : public GotoCommand {
 public:
   GotoLastFrameCommand() : GotoCommand(CommandId::GotoLastFrame()) { }
-  Command* clone() const override { return new GotoLastFrameCommand(*this); }
 
 protected:
   frame_t onGetFrame(Editor* editor) override {
@@ -158,7 +151,6 @@ class GotoLastFrameInTagCommand : public GotoCommand {
 public:
   GotoLastFrameInTagCommand()
     : GotoCommand(CommandId::GotoLastFrameInTag()) { }
-  Command* clone() const override { return new GotoLastFrameInTagCommand(*this); }
 
 protected:
   frame_t onGetFrame(Editor* editor) override {
@@ -175,7 +167,6 @@ class GotoFrameCommand : public GotoCommand {
 public:
   GotoFrameCommand() : GotoCommand(CommandId::GotoFrame())
                      , m_showUI(true) { }
-  Command* clone() const override { return new GotoFrameCommand(*this); }
 
 private:
 

src/app/commands/cmd_goto_layer.cpp

@@ -88,9 +88,6 @@ public:
     : GotoLayerCommand(-1, "GotoPreviousLayer",
                        CmdUIOnlyFlag) {
   }
-  Command* clone() const override {
-    return new GotoPreviousLayerCommand(*this);
-  }
 };
 
 class GotoNextLayerCommand : public GotoLayerCommand {
@@ -99,9 +96,6 @@ public:
     : GotoLayerCommand(+1, "GotoNextLayer",
                        CmdUIOnlyFlag) {
   }
-  Command* clone() const override {
-    return new GotoNextLayerCommand(*this);
-  }
 };
 
 Command* CommandFactory::createGotoPreviousLayerCommand()

src/app/commands/cmd_goto_tab.cpp

@@ -17,7 +17,6 @@ namespace app {
 class GotoNextTabCommand : public Command {
 public:
   GotoNextTabCommand();
-  Command* clone() const override { return new GotoNextTabCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;
@@ -42,7 +41,6 @@ void GotoNextTabCommand::onExecute(Context* context)
 class GotoPreviousTabCommand : public Command {
 public:
   GotoPreviousTabCommand();
-  Command* clone() const override { return new GotoPreviousTabCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_grid.cpp

@@ -36,8 +36,6 @@ public:
     : Command(CommandId::SnapToGrid(), CmdUIOnlyFlag) {
   }
 
-  Command* clone() const override { return new SnapToGridCommand(*this); }
-
 protected:
   bool onChecked(Context* ctx) override {
     DocumentPreferences& docPref = Preferences::instance().document(ctx->activeDocument());
@@ -59,8 +57,6 @@ public:
     : Command(CommandId::SelectionAsGrid(), CmdUIOnlyFlag) {
   }
 
-  Command* clone() const override { return new SelectionAsGridCommand(*this); }
-
 protected:
   bool onEnabled(Context* ctx) override {
     return (ctx->activeDocument() &&
@@ -85,7 +81,6 @@ protected:
 class GridSettingsCommand : public Command {
 public:
   GridSettingsCommand();
-  Command* clone() const override { return new GridSettingsCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_import_sprite_sheet.cpp

@@ -290,7 +290,6 @@ private:
 class ImportSpriteSheetCommand : public Command {
 public:
   ImportSpriteSheetCommand();
-  Command* clone() const override { return new ImportSpriteSheetCommand(*this); }
 
 protected:
   virtual void onExecute(Context* context) override;

src/app/commands/cmd_invert_mask.cpp

@@ -24,7 +24,6 @@ namespace app {
 class InvertMaskCommand : public Command {
 public:
   InvertMaskCommand();
-  Command* clone() const override { return new InvertMaskCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_keyboard_shortcuts.cpp

@@ -841,7 +841,6 @@ private:
 class KeyboardShortcutsCommand : public Command {
 public:
   KeyboardShortcutsCommand();
-  Command* clone() const override { return new KeyboardShortcutsCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_launch.cpp

@@ -18,7 +18,6 @@ namespace app {
 class LaunchCommand : public Command {
 public:
   LaunchCommand();
-  Command* clone() const override { return new LaunchCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_layer_from_background.cpp

@@ -22,7 +22,6 @@ namespace app {
 class LayerFromBackgroundCommand : public Command {
 public:
   LayerFromBackgroundCommand();
-  Command* clone() const override { return new LayerFromBackgroundCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_layer_lock.cpp

@@ -23,7 +23,6 @@ using namespace ui;
 class LayerLockCommand : public Command {
 public:
   LayerLockCommand();
-  Command* clone() const override { return new LayerLockCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_layer_properties.cpp

@@ -41,7 +41,6 @@ using namespace ui;
 class LayerPropertiesCommand : public Command {
 public:
   LayerPropertiesCommand();
-  Command* clone() const override { return new LayerPropertiesCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_layer_visibility.cpp

@@ -23,7 +23,6 @@ using namespace ui;
 class LayerVisibilityCommand : public Command {
 public:
   LayerVisibilityCommand();
-  Command* clone() const override { return new LayerVisibilityCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_link_cels.cpp

@@ -24,7 +24,6 @@ namespace app {
 class LinkCelsCommand : public Command {
 public:
   LinkCelsCommand();
-  Command* clone() const override { return new LinkCelsCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_load_mask.cpp

@@ -29,7 +29,6 @@ class LoadMaskCommand : public Command {
 
 public:
   LoadMaskCommand();
-  Command* clone() const override { return new LoadMaskCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_load_palette.cpp

@@ -28,7 +28,6 @@ using namespace ui;
 class LoadPaletteCommand : public Command {
 public:
   LoadPaletteCommand();
-  Command* clone() const override { return new LoadPaletteCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_mask_all.cpp

@@ -22,7 +22,6 @@ namespace app {
 class MaskAllCommand : public Command {
 public:
   MaskAllCommand();
-  Command* clone() const override { return new MaskAllCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_mask_by_color.cpp

@@ -48,7 +48,6 @@ using namespace ui;
 class MaskByColorCommand : public Command {
 public:
   MaskByColorCommand();
-  Command* clone() const override { return new MaskByColorCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_mask_content.cpp

@@ -32,7 +32,6 @@ namespace app {
 class MaskContentCommand : public Command {
 public:
   MaskContentCommand();
-  Command* clone() const override { return new MaskContentCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_merge_down_layer.cpp

@@ -33,7 +33,6 @@ namespace app {
 class MergeDownLayerCommand : public Command {
 public:
   MergeDownLayerCommand();
-  Command* clone() const override { return new MergeDownLayerCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_modify_selection.cpp

@@ -39,7 +39,6 @@ class ModifySelectionWindow : public app::gen::ModifySelection {
 class ModifySelectionCommand : public Command {
 public:
   ModifySelectionCommand();
-  Command* clone() const override { return new ModifySelectionCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_move_cel.cpp

@@ -19,7 +19,6 @@ namespace app {
 class MoveCelCommand : public Command {
 public:
   MoveCelCommand();
-  Command* clone() const override { return new MoveCelCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_move_mask.h

@@ -18,7 +18,6 @@ namespace app {
     enum Target { Boundaries, Content };
 
     MoveMaskCommand();
-    Command* clone() const override { return new MoveMaskCommand(*this); }
 
     Target getTarget() const { return m_target; }
     gfx::Point getDelta(Context* context) const;

src/app/commands/cmd_new_brush.cpp

@@ -35,7 +35,6 @@ class NewBrushCommand : public Command
                       , public SelectBoxDelegate {
 public:
   NewBrushCommand();
-  Command* clone() const override { return new NewBrushCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_new_file.cpp

@@ -43,7 +43,6 @@ namespace app {
 class NewFileCommand : public Command {
 public:
   NewFileCommand();
-  Command* clone() const override { return new NewFileCommand(*this); }
 
 protected:
   void onExecute(Context* context) override;

src/app/commands/cmd_new_frame.cpp

@@ -46,7 +46,6 @@ public:
    };
 
   NewFrameCommand();
-  Command* clone() const override { return new NewFrameCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_new_frame_tag.cpp

@@ -27,7 +27,6 @@ using namespace doc;
 class NewFrameTagCommand : public Command {
 public:
   NewFrameTagCommand();
-  Command* clone() const override { return new NewFrameTagCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_new_layer.cpp

@@ -46,7 +46,6 @@ public:
   enum class Place { AfterActiveLayer, BeforeActiveLayer, Top };
 
   NewLayerCommand();
-  Command* clone() const override { return new NewLayerCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_new_sprite_from_selection.cpp

@@ -31,7 +31,6 @@ using namespace doc;
 class NewSpriteFromSelectionCommand : public Command {
 public:
   NewSpriteFromSelectionCommand();
-  Command* clone() const override { return new NewSpriteFromSelectionCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_onionskin.cpp

@@ -25,8 +25,6 @@ public:
   {
   }
 
-  Command* clone() const override { return new ShowOnionSkinCommand(*this); }
-
 protected:
   bool onChecked(Context* context) override {
     DocumentPreferences& docPref = Preferences::instance().document(context->activeDocument());

src/app/commands/cmd_open_browser.cpp

@@ -19,7 +19,6 @@ namespace app {
 class OpenBrowserCommand : public Command {
 public:
   OpenBrowserCommand();
-  Command* clone() const override { return new OpenBrowserCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_open_file.h

@@ -22,7 +22,6 @@ namespace app {
     };
 
     OpenFileCommand();
-    Command* clone() const override { return new OpenFileCommand(*this); }
 
     const base::paths& usedFiles() const {
       return m_usedFiles;

src/app/commands/cmd_open_group.cpp

@@ -20,7 +20,6 @@ using namespace ui;
 class OpenGroupCommand : public Command {
 public:
   OpenGroupCommand();
-  Command* clone() const override { return new OpenGroupCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_open_in_folder.cpp

@@ -19,7 +19,6 @@ namespace app {
 class OpenInFolderCommand : public Command {
 public:
   OpenInFolderCommand();
-  Command* clone() const override { return new OpenInFolderCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_open_with_app.cpp

@@ -19,7 +19,6 @@ namespace app {
 class OpenWithAppCommand : public Command {
 public:
   OpenWithAppCommand();
-  Command* clone() const override { return new OpenWithAppCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_options.cpp

@@ -1278,7 +1278,6 @@ private:
 class OptionsCommand : public Command {
 public:
   OptionsCommand();
-  Command* clone() const override { return new OptionsCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_palette_editor.cpp

@@ -19,7 +19,6 @@ namespace app {
 class PaletteEditorCommand : public Command {
 public:
   PaletteEditorCommand();
-  Command* clone() const override { return new PaletteEditorCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_palette_size.cpp

@@ -28,7 +28,6 @@ namespace app {
 class PaletteSizeCommand : public Command {
 public:
   PaletteSizeCommand();
-  Command* clone() const override { return new PaletteSizeCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_paste.cpp

@@ -17,7 +17,6 @@ namespace app {
 class PasteCommand : public Command {
 public:
   PasteCommand();
-  Command* clone() const override { return new PasteCommand(*this); }
 
 protected:
   bool onEnabled(Context* ctx) override;

src/app/commands/cmd_paste_text.cpp

@@ -37,7 +37,6 @@ static std::string last_text_used;
 class PasteTextCommand : public Command {
 public:
   PasteTextCommand();
-  Command* clone() const override { return new PasteTextCommand(*this); }
 
 protected:
   bool onEnabled(Context* ctx) override;

src/app/commands/cmd_pixel_perfect_mode.cpp

@@ -21,7 +21,6 @@ namespace app {
 class PixelPerfectModeCommand : public Command {
 public:
   PixelPerfectModeCommand();
-  Command* clone() const override { return new PixelPerfectModeCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_play_animation.cpp

@@ -27,7 +27,6 @@ using namespace ui;
 class PlayAnimationCommand : public Command {
 public:
   PlayAnimationCommand();
-  Command* clone() const override { return new PlayAnimationCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;
@@ -71,7 +70,6 @@ void PlayAnimationCommand::onExecute(Context* context)
 class PlayPreviewAnimationCommand : public Command {
 public:
   PlayPreviewAnimationCommand();
-  Command* clone() const override { return new PlayPreviewAnimationCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_refresh.cpp

@@ -26,7 +26,6 @@ namespace app {
 class RefreshCommand : public Command {
 public:
   RefreshCommand();
-  Command* clone() const override { return new RefreshCommand(*this); }
 
 protected:
   void onExecute(Context* context) override;

src/app/commands/cmd_remove_frame.cpp

@@ -22,7 +22,6 @@ namespace app {
 class RemoveFrameCommand : public Command {
 public:
   RemoveFrameCommand();
-  Command* clone() const override { return new RemoveFrameCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_remove_frame_tag.cpp

@@ -25,7 +25,6 @@ namespace app {
 class RemoveFrameTagCommand : public Command {
 public:
   RemoveFrameTagCommand();
-  Command* clone() const override { return new RemoveFrameTagCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_remove_layer.cpp

@@ -26,7 +26,6 @@ namespace app {
 class RemoveLayerCommand : public Command {
 public:
   RemoveLayerCommand();
-  Command* clone() const override { return new RemoveLayerCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_remove_slice.cpp

@@ -27,7 +27,6 @@ namespace app {
 class RemoveSliceCommand : public Command {
 public:
   RemoveSliceCommand();
-  Command* clone() const override { return new RemoveSliceCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_repeat_last_export.cpp

@@ -21,7 +21,6 @@ namespace app {
 class RepeatLastExportCommand : public Command {
 public:
   RepeatLastExportCommand();
-  Command* clone() const override { return new RepeatLastExportCommand(*this); }
 
 protected:
   virtual bool onEnabled(Context* context) override;

src/app/commands/cmd_reselect_mask.cpp

@@ -21,7 +21,6 @@ namespace app {
 class ReselectMaskCommand : public Command {
 public:
   ReselectMaskCommand();
-  Command* clone() const override { return new ReselectMaskCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_reverse_frames.cpp

@@ -20,7 +20,6 @@ namespace app {
 class ReverseFramesCommand : public Command {
 public:
   ReverseFramesCommand();
-  Command* clone() const override { return new ReverseFramesCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_rotate.h

@@ -15,7 +15,6 @@ namespace app {
   class RotateCommand : public Command {
   public:
     RotateCommand();
-    Command* clone() const override { return new RotateCommand(*this); }
 
     bool flipMask() const { return m_flipMask; }
     int angle() const { return m_angle; }

src/app/commands/cmd_run_script.cpp

@@ -34,7 +34,6 @@ namespace app {
 class RunScriptCommand : public Command {
 public:
   RunScriptCommand();
-  Command* clone() const override { return new RunScriptCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_save_file.cpp

@@ -238,7 +238,6 @@ void SaveFileBaseCommand::saveDocumentInBackground(
 class SaveFileCommand : public SaveFileBaseCommand {
 public:
   SaveFileCommand();
-  Command* clone() const override { return new SaveFileCommand(*this); }
 
 protected:
   void onExecute(Context* context) override;
@@ -277,7 +276,6 @@ void SaveFileCommand::onExecute(Context* context)
 class SaveFileAsCommand : public SaveFileBaseCommand {
 public:
   SaveFileAsCommand();
-  Command* clone() const override { return new SaveFileAsCommand(*this); }
 
 protected:
   void onExecute(Context* context) override;
@@ -298,7 +296,6 @@ void SaveFileAsCommand::onExecute(Context* context)
 class SaveFileCopyAsCommand : public SaveFileBaseCommand {
 public:
   SaveFileCopyAsCommand();
-  Command* clone() const override { return new SaveFileCopyAsCommand(*this); }
 
 protected:
   void onExecute(Context* context) override;

src/app/commands/cmd_save_mask.cpp

@@ -24,7 +24,6 @@ namespace app {
 class SaveMaskCommand : public Command {
 public:
   SaveMaskCommand();
-  Command* clone() const override { return new SaveMaskCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_save_palette.cpp

@@ -28,7 +28,6 @@ using namespace ui;
 class SavePaletteCommand : public Command {
 public:
   SavePaletteCommand();
-  Command* clone() const override { return new SavePaletteCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_scroll.cpp

@@ -25,7 +25,6 @@ namespace app {
 class ScrollCommand : public Command {
 public:
   ScrollCommand();
-  Command* clone() const override { return new ScrollCommand(*this); }
 
 protected:
   bool onNeedsParams() const override { return true; }

src/app/commands/cmd_scroll_center.cpp

@@ -19,7 +19,6 @@ namespace app {
 class ScrollCenterCommand : public Command {
 public:
   ScrollCenterCommand();
-  Command* clone() const override { return new ScrollCenterCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_select_tile.cpp

@@ -31,7 +31,6 @@ using namespace doc;
 class SelectTileCommand : public Command {
 public:
   SelectTileCommand();
-  Command* clone() const override { return new SelectTileCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_set_color_selector.cpp

@@ -20,7 +20,6 @@ namespace app {
 class SetColorSelectorCommand : public Command {
 public:
   SetColorSelectorCommand();
-  Command* clone() const override { return new SetColorSelectorCommand(*this); }
 
 protected:
   bool onNeedsParams() const override { return true; }

src/app/commands/cmd_set_ink_type.cpp

@@ -22,7 +22,6 @@ namespace app {
 class SetInkTypeCommand : public Command {
 public:
   SetInkTypeCommand();
-  Command* clone() const override { return new SetInkTypeCommand(*this); }
 
 protected:
   bool onNeedsParams() const override { return true; }

src/app/commands/cmd_set_loop_section.cpp

@@ -28,7 +28,6 @@ public:
   enum class Action { Auto, On, Off };
 
   SetLoopSectionCommand();
-  Command* clone() const override { return new SetLoopSectionCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_set_palette.h

@@ -21,7 +21,6 @@ namespace app {
     enum class Target { Document, App };
 
     SetPaletteCommand();
-    Command* clone() const override { return new SetPaletteCommand(*this); }
 
     void setPalette(const doc::Palette* palette) { m_palette = palette; }
 

src/app/commands/cmd_set_palette_entry_size.cpp

@@ -18,7 +18,6 @@ namespace app {
 class SetPaletteEntrySizeCommand : public Command {
 public:
   SetPaletteEntrySizeCommand();
-  Command* clone() const override { return new SetPaletteEntrySizeCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_set_same_ink.cpp

@@ -21,7 +21,6 @@ namespace app {
 class SetSameInkCommand : public Command {
 public:
   SetSameInkCommand();
-  Command* clone() const override { return new SetSameInkCommand(*this); }
 
 protected:
   bool onChecked(Context* context) override;

src/app/commands/cmd_show.cpp

@@ -21,8 +21,6 @@ public:
     : Command(CommandId::ShowExtras(), CmdUIOnlyFlag) {
   }
 
-  Command* clone() const override { return new ShowExtrasCommand(*this); }
-
 protected:
   bool onChecked(Context* ctx) override {
     DocumentPreferences& docPref = Preferences::instance().document(ctx->activeDocument());
@@ -60,8 +58,6 @@ public:
     : Command(CommandId::ShowLayerEdges(), CmdUIOnlyFlag) {
   }
 
-  Command* clone() const override { return new ShowLayerEdgesCommand(*this); }
-
 protected:
   bool onChecked(Context* ctx) override {
     DocumentPreferences& docPref = Preferences::instance().document(ctx->activeDocument());
@@ -80,8 +76,6 @@ public:
     : Command(CommandId::ShowGrid(), CmdUIOnlyFlag) {
   }
 
-  Command* clone() const override { return new ShowGridCommand(*this); }
-
 protected:
   bool onChecked(Context* ctx) override {
     DocumentPreferences& docPref = Preferences::instance().document(ctx->activeDocument());
@@ -100,8 +94,6 @@ public:
     : Command(CommandId::ShowPixelGrid(), CmdUIOnlyFlag) {
   }
 
-  Command* clone() const override { return new ShowPixelGridCommand(*this); }
-
 protected:
   bool onChecked(Context* ctx) override {
     DocumentPreferences& docPref = Preferences::instance().document(ctx->activeDocument());
@@ -120,8 +112,6 @@ public:
     : Command(CommandId::ShowSelectionEdges(), CmdUIOnlyFlag) {
   }
 
-  Command* clone() const override { return new ShowSelectionEdgesCommand(*this); }
-
 protected:
   bool onChecked(Context* ctx) override {
     DocumentPreferences& docPref = Preferences::instance().document(ctx->activeDocument());
@@ -140,8 +130,6 @@ public:
     : Command(CommandId::ShowBrushPreview(), CmdUIOnlyFlag) {
   }
 
-  Command* clone() const override { return new ShowBrushPreviewCommand(*this); }
-
 protected:
   bool onChecked(Context* ctx) override {
     DocumentPreferences& docPref = Preferences::instance().document(ctx->activeDocument());
@@ -165,8 +153,6 @@ public:
     : Command(CommandId::ShowAutoGuides(), CmdUIOnlyFlag) {
   }
 
-  Command* clone() const override { return new ShowAutoGuidesCommand(*this); }
-
 protected:
   bool onChecked(Context* ctx) override {
     DocumentPreferences& docPref = Preferences::instance().document(ctx->activeDocument());
@@ -185,8 +171,6 @@ public:
     : Command(CommandId::ShowSlices(), CmdUIOnlyFlag) {
   }
 
-  Command* clone() const override { return new ShowSlicesCommand(*this); }
-
 protected:
   bool onChecked(Context* ctx) override {
     DocumentPreferences& docPref = Preferences::instance().document(ctx->activeDocument());

src/app/commands/cmd_slice_properties.cpp

@@ -26,7 +26,6 @@ using namespace ui;
 class SlicePropertiesCommand : public Command {
 public:
   SlicePropertiesCommand();
-  Command* clone() const override { return new SlicePropertiesCommand(*this); }
 
 protected:
   void onLoadParams(const Params& params) override;

src/app/commands/cmd_sprite_properties.cpp

@@ -41,7 +41,6 @@ using namespace ui;
 class SpritePropertiesCommand : public Command {
 public:
   SpritePropertiesCommand();
-  Command* clone() const override { return new SpritePropertiesCommand(*this); }
 
 protected:
   bool onEnabled(Context* context) override;

src/app/commands/cmd_sprite_size.cpp

@@ -279,11 +279,6 @@ SpriteSizeCommand::SpriteSizeCommand()
   m_resizeMethod = doc::algorithm::RESIZE_METHOD_NEAREST_NEIGHBOR;
 }
 
-Command* SpriteSizeCommand::clone() const
-{
-  return new SpriteSizeCommand(*this);
-}
-
 void SpriteSizeCommand::onLoadParams(const Params& params)
 {
   std::string useUI = params.get("use-ui");

src/app/commands/cmd_sprite_size.h

@@ -23,7 +23,6 @@ namespace app {
   class SpriteSizeCommand : public Command {
   public:
     SpriteSizeCommand();
-    Command* clone() const override;
 
     void setScale(double x, double y) {
       m_scaleX = x;