Add option to disable the new "move selection edges" behavior

data/strings/en.ini

@@ -256,6 +256,7 @@ skip = &Skip
 title = Preferences
 section_general = General
 section_editor = Editor
+section_selection = Selection
 section_timeline = Timeline
 section_cursors = Cursors
 section_background = Background
@@ -315,6 +316,12 @@ keep_selection_after_clear_tooltip = <<<END
 Check this if you want to keep the selection
 after deleting it.
 END
+move_edges = Allow moving selection edges
+move_edges_tooltip = <<<END
+Check this if you want to be able to drag
+only the selection edges when the mouse is
+above them.
+END
 autotimeline = Show timeline automatically
 autotimeline_tooltip = <<<END
 Show the timeline automatically

data/widgets/options.xml

@@ -8,6 +8,7 @@
         <listbox id="section_listbox">
           <listitem text="@.section_general" value="section_general" />
           <listitem text="@.section_editor" value="section_editor" />
+          <listitem text="@.section_selection" value="section_selection" />
           <listitem text="@.section_timeline" value="section_timeline" />
           <listitem text="@.section_cursors" value="section_cursors" />
           <listitem text="@.section_background" value="section_bg" />
@@ -84,10 +85,14 @@
             <label text="@.right_click" />
             <combobox id="right_click_behavior" expansive="true" />
           </hbox>
+        </vbox>
 
+        <!-- Selection -->
+        <vbox id="section_selection">
           <separator text="@.editor_selection" horizontal="true" />
           <check text="@.auto_opaque" id="auto_opaque" tooltip="@.auto_opaque_tooltip" />
           <check text="@.keep_selection_after_clear" id="keep_selection_after_clear" tooltip="@.keep_selection_after_clear_tooltip" />
+          <check text="@.move_edges" id="move_edges" tooltip="@.move_edges_tooltip" />
         </vbox>
 
         <!-- Timeline -->

src/app/commands/cmd_options.cpp

@@ -133,6 +133,9 @@ class OptionsWindow : public app::gen::Options {
     if (m_pref.selection.keepSelectionAfterClear())
       keepSelectionAfterClear()->setSelected(true);
 
+    if (m_pref.selection.moveEdges())
+      moveEdges()->setSelected(true);
+
 #if defined(_WIN32) || defined(__APPLE__)
     if (m_pref.cursor.useNativeCursor())
       nativeCursor()->setSelected(true);
@@ -297,6 +300,7 @@ class OptionsWindow : public app::gen::Options {
     m_pref.cursor.cursorScale(base::convert_to<int>(cursorScale()->getValue()));
     m_pref.selection.autoOpaque(autoOpaque()->isSelected());
     m_pref.selection.keepSelectionAfterClear(keepSelectionAfterClear()->isSelected());
+    m_pref.selection.moveEdges(moveEdges()->isSelected());
     m_pref.guides.layerEdgesColor(layerEdgesColor()->getColor());
     m_pref.guides.autoGuidesColor(autoGuidesColor()->getColor());
     m_pref.slices.defaultColor(defaultSliceColor()->getColor());