Reimplement list sorting and Fix UI7 Layers

pd/lithium/source/drawlist.cpp

@@ -90,7 +90,6 @@ PD_LITHIUM_API void DrawList::Optimize() {
 
 PD_LITHIUM_API Command::Ref DrawList::GetNewCmd() {
   Command::Ref cmd = pPool.NewCmd();
-  cmd->Layer = pLayer;
   cmd->Index = pPool.Size() - 1;
   cmd->Tex = CurrentTex;
   pClipCmd(cmd);

pd/ui7/source/container/button.cpp

@@ -51,10 +51,10 @@ PD_UI7_API void Button::Draw() {
   // io->Ren->OnScreen(screen);
   list->PathRect(FinalPos(), FinalPos() + size, io->FrameRounding);
   list->PathFill(io->Theme->Get(color));
-  list->pLayer++;
+  list->LayerUp();
   list->DrawText(FinalPos() + size * 0.5 - tdim * 0.5, label,
                  io->Theme->Get(UI7Color_Text));
-  list->pLayer--;
+  list->LayerDown();
 }
 
 PD_UI7_API void Button::Update() {

pd/ui7/source/container/dragdata.cpp

@@ -84,11 +84,11 @@ PD_UI7_API void DragData<T>::Draw() {
     list->PathRect(FinalPos() + fvec2(off_x, 0),
                    FinalPos() + td + io->FramePadding, io->FrameRounding);
     list->PathFill(io->Theme->Get(UI7Color_Button));
-    list->pLayer++;
+    list->LayerUp();
     list->DrawTextEx(FinalPos() + fvec2(off_x, 0), p,
                      io->Theme->Get(UI7Color_Text), LiTextFlags_AlignMid,
                      td + io->FramePadding);
-    list->pLayer--;
+    list->LayerDown();
     off_x += td.x + io->ItemSpace.x + io->FramePadding.x;
   }
   list->DrawText(FinalPos() + fvec2(off_x, io->FramePadding.y * 0.5), label,

pd/ui7/source/container/image.cpp

@@ -29,11 +29,11 @@ PD_UI7_API void Image::Draw() {
   // Assert(io.get() && list.get(), "Did you run Container::Init correctly?");
   // Assert(img.get(), "Image is nullptr!");
   // io->Ren->OnScreen(screen);
-  list->pLayer++;
+  list->LayerUp();
   list->DrawTexture(img);
   list->DrawRectFilled(FinalPos(), newsize, 0xffffffff);
   list->DrawSolid();
-  list->pLayer--;
+  list->LayerDown();
 }
 }  // namespace UI7
 }  // namespace PD

pd/ui7/source/menu.cpp

@@ -242,7 +242,7 @@ PD_UI7_API void Menu::DrawBaseLayout() {
     if (!(Flags & UI7MenuFlags_NoResize)) {
       Container::Ref r = DynObj::New(
           [](IO::Ref io, Li::DrawList::Ref l, UI7::Container* self) {
-            l->pLayer = 1;
+            l->Layer(1);
             l->PathAdd(self->FinalPos() + self->GetSize() - fvec2(0, 20));
             l->PathAdd(self->FinalPos() + self->GetSize());
             l->PathAdd(self->FinalPos() + self->GetSize() - fvec2(20, 0));
@@ -258,7 +258,7 @@ PD_UI7_API void Menu::DrawBaseLayout() {
     /** Background */
     Container::Ref r = DynObj::New([](IO::Ref io, Li::DrawList::Ref l,
                                       UI7::Container* self) {
-      l->pLayer = 0;
+      l->Layer(0);
       l->PathRectEx(self->FinalPos(), self->FinalPos() + self->GetSize(), 10.f,
                     LiPathRectFlags_KeepTop | LiPathRectFlags_KeepBot);
       l->PathFill(io->Theme->Get(UI7Color_Background));
@@ -275,11 +275,11 @@ PD_UI7_API void Menu::DrawBaseLayout() {
   if (!(Flags & UI7MenuFlags_NoTitlebar)) {
     Container::Ref r = DynObj::New(
         [=, this](UI7::IO::Ref io, Li::DrawList::Ref l, UI7::Container* self) {
-          l->pLayer = 20;
+          l->Layer(20);
           /** Header Bar */
           l->DrawRectFilled(self->FinalPos(), self->GetSize(),
                             io->Theme->Get(UI7Color_Header));
-          l->pLayer = 21;
+          l->Layer(21);
           /** Inline if statement to shift the Text if collapse sym is shown */
           /** What the hell is this code btw (didn't found a better way) */
           l->DrawText(self->FinalPos() + fvec2((Flags & UI7MenuFlags_NoCollapse)
@@ -300,7 +300,7 @@ PD_UI7_API void Menu::DrawBaseLayout() {
       r = DynObj::New([=, this](UI7::IO::Ref io, Li::DrawList::Ref l,
                                 UI7::Container* self) {
         /** This sym actually requires layer 21 (i dont know why) */
-        l->pLayer = 21;
+        l->Layer(21);
         /**
          * Symbol (Position Swapping set by pIsOpen ? openpos : closepos;)
          */