feat: add beatloop anchor to set and adjust loop from either start or…

… end

res/skins/LateNight/controls/button_2state_display.xml

@@ -0,0 +1,46 @@
+<!--
+Description:
+  A button that has click or display controls.
+Variables:
+  ObjectName        : object name
+  ToolTipID         : standard Tooltip from mixxx db
+    see: https://github.com/mixxxdj/mixxx/blob/main/src/skin/legacy/tooltips.cpp
+  Size              : button size
+  state_X_text      : label text for state X
+  state_X_pressed   : background graphic for pressed state X
+  state_X_unpressed : background graphic for unpressed state X
+  Align             : alignment of text
+  ConfigKey         : left-click control
+  ConfigKeyDisp     : display control
+-->
+<Template>
+  <PushButton>
+    <TooltipId><Variable name="TooltipId"/></TooltipId>
+    <ObjectName><Variable name="ObjectName"/></ObjectName>
+    <Size><Variable name="Size"/></Size>
+    <NumberStates>2</NumberStates>
+    <RightClickIsPushButton>false</RightClickIsPushButton>
+    <State>
+      <Number>0</Number>
+      <Text><Variable name="state_0_text"/></Text>
+      <Alignment><Variable name="Align"/></Alignment>
+      <Unpressed scalemode="STRETCH">skins:LateNight/<Variable name="BtnScheme"/>/buttons/btn_<Variable name="BtnType"/>_<Variable name="BtnSize"/>.svg</Unpressed>
+      <Pressed scalemode="STRETCH">skins:LateNight/<Variable name="BtnScheme"/>/buttons/btn_<Variable name="BtnType"/>_<Variable name="BtnSize"/>_active.svg</Pressed>
+    </State>
+    <State>
+      <Number>1</Number>
+      <Text><Variable name="state_1_text"/></Text>
+      <Alignment><Variable name="Align"/></Alignment>
+      <Unpressed scalemode="STRETCH">skins:LateNight/<Variable name="BtnScheme"/>/buttons/btn_<Variable name="BtnType"/>_<Variable name="BtnSize"/>_active.svg</Unpressed>
+      <Pressed scalemode="STRETCH">skins:LateNight/<Variable name="BtnScheme"/>/buttons/btn_<Variable name="BtnType"/>_<Variable name="BtnSize"/>_active.svg</Pressed>
+    </State>
+    <Connection>
+      <ConfigKey><Variable name="ConfigKey"/></ConfigKey>
+      <ButtonState>LeftButton</ButtonState>
+    </Connection>
+    <Connection>
+      <ConfigKey><Variable name="ConfigKeyDisp"/></ConfigKey>
+      <ConnectValueFromWidget>false</ConnectValueFromWidget>
+    </Connection>
+  </PushButton>
+</Template>

res/skins/LateNight/decks/row_5_transportLoopJump.xml

@@ -230,7 +230,7 @@
             <Layout>vertical</Layout>
             <SizePolicy>min,min</SizePolicy>
             <MinimumSize>78,52</MinimumSize>
-            <MaximumSize>86,52</MaximumSize>
+            <MaximumSize>104,52</MaximumSize>
             <Children>
               <WidgetGroup><!-- loop enable + beatloop size -->
                 <ObjectName>AlignLeftTop</ObjectName>
@@ -290,6 +290,14 @@
                     <SetVariable name="ConfigKey"><Variable name="Group"/>,loop_out</SetVariable>
                     <SetVariable name="ConfigKeyRight"><Variable name="Group"/>,loop_out_goto</SetVariable>
                   </Template>
+
+                  <Template src="skins:LateNight/controls/button_2state_display.xml">
+                    <SetVariable name="TooltipId">beatloop_anchor</SetVariable>
+                    <SetVariable name="ObjectName">BeatLoopAnchor</SetVariable>
+                    <SetVariable name="Size">26f,26f</SetVariable>
+                    <SetVariable name="ConfigKey"><Variable name="Group"/>,beatloop_anchor_toggle</SetVariable>
+                    <SetVariable name="ConfigKeyDisp"><Variable name="Group"/>,beatloop_anchor</SetVariable>
+                  </Template>
                 </Children>
               </WidgetGroup>
             </Children>

res/skins/LateNight/style_palemoon.qss

@@ -1669,6 +1669,7 @@ QPushButton#pushButtonAnalyze:checked {
 #SyncLeader[value="1"],
 WPushButton#LoopIn[pressed="true"],
 WPushButton#LoopOut[pressed="true"],
+WPushButton#BeatLoopAnchor[pressed="true"],
 #BeatjumpControls WPushButton[value="1"],
 #RateControls WPushButton[value="1"],
 #BeatgridControls WPushButton[pressed="true"]/*,
@@ -2076,6 +2077,12 @@ WPushButton#PlayDeck[value="0"] {
   #LoopOut[pressed="true"] {
     image: url(skins:LateNight/palemoon/buttons/btn__loop_out_active.svg) no-repeat center center;
   }
+#BeatLoopAnchor[displayValue="0"] {
+  image: url(skins:LateNight/classic/buttons/btn__beatloop_anchor_start.svg) no-repeat center center;
+  }
+  #BeatLoopAnchor[displayValue="1"] {
+    image: url(skins:LateNight/classic/buttons/btn__beatloop_anchor_end.svg) no-repeat center center;
+  }
 
 #JumpForward {
   image: url(skins:LateNight/palemoon/buttons/btn__beatjump_right.svg) no-repeat center center;

src/controllers/controlpickermenu.cpp

@@ -628,6 +628,15 @@ ControlPickerMenu::ControlPickerMenu(QWidget* pParent)
     QString beatJumpBackwardDescription = tr("Jump backward by %1 beats, or if a loop is enabled, move the loop backward %1 beats");
     addDeckControl("beatjump_forward", tr("Beat Jump / Loop Move Forward Selected Beats"), tr("Jump forward by the selected number of beats, or if a loop is enabled, move the loop forward by the selected number of beats"), beatJumpMenu);
     addDeckControl("beatjump_backward", tr("Beat Jump / Loop Move Backward Selected Beats"), tr("Jump backward by the selected number of beats, or if a loop is enabled, move the loop backward by the selected number of beats"), beatJumpMenu);
+    addDeckControl("beatjump_anchor",
+            tr("Beat Jump"),
+            tr("Indicate which loop marker remain static when adjusting the "
+               "size or is inherited from the current position"),
+            beatJumpMenu);
+    addDeckControl("beatjump_anchor_toggle",
+            tr("Beat Jump"),
+            tr("Toggle the loop marker anchor"),
+            beatJumpMenu);
     beatJumpMenu->addSeparator();
 
     QMenu* beatjumpFwdSubmenu = addSubmenu(tr("Beat Jump / Loop Move Forward"), beatJumpMenu);