GUI: and here is the mobile orders bar

src/gui/gui.cpp

@@ -2197,6 +2197,11 @@ void FurnaceGUI::processDrags(int dragX, int dragY) {
       sampleSelEnd=x;
     }
   }
+  if (orderScrollLocked) {
+    orderScroll=(orderScrollSlideOrigin-dragX)/(40.0*dpiScale);
+    if (orderScroll<0.0f) orderScroll=0.0f;
+    if (orderScroll>(float)e->curSubSong->ordersLen-1) orderScroll=e->curSubSong->ordersLen-1;
+  }
 }
 
 #define checkExtension(x) \
@@ -2906,6 +2911,13 @@ void FurnaceGUI::pointUp(int x, int y, int button) {
     }
   }
   sampleDragActive=false;
+  if (orderScrollLocked) {
+    int targetOrder=round(orderScroll);
+    if (targetOrder<0) targetOrder=0;
+    if (targetOrder>e->curSubSong->ordersLen-1) targetOrder=e->curSubSong->ordersLen-1;
+    if (curOrder!=targetOrder) setOrder(targetOrder);
+  }
+  orderScrollLocked=false;
   if (selecting) {
     if (!selectingFull) cursor=selEnd;
     finishSelection();
@@ -2929,7 +2941,7 @@ void FurnaceGUI::pointMotion(int x, int y, int xrel, int yrel) {
       addScroll(1);
     }
   }
-  if (macroDragActive || macroLoopDragActive || waveDragActive || sampleDragActive) {
+  if (macroDragActive || macroLoopDragActive || waveDragActive || sampleDragActive || orderScrollLocked) {
     int distance=fabs((double)xrel);
     if (distance<1) distance=1;
     float start=x-xrel;
@@ -5728,6 +5740,7 @@ FurnaceGUI::FurnaceGUI():
   latchNibble(false),
   nonLatchNibble(false),
   keepLoopAlive(false),
+  orderScrollLocked(false),
   curWindow(GUI_WINDOW_NOTHING),
   nextWindow(GUI_WINDOW_NOTHING),
   curWindowLast(GUI_WINDOW_NOTHING),
@@ -5816,6 +5829,8 @@ FurnaceGUI::FurnaceGUI():
   bindSetPending(false),
   nextScroll(-1.0f),
   nextAddScroll(0.0f),
+  orderScroll(0.0f),
+  orderScrollSlideOrigin(0.0f),
   layoutTimeBegin(0),
   layoutTimeEnd(0),
   layoutTimeDelta(0),

src/gui/gui.h

@@ -1419,7 +1419,7 @@ class FurnaceGUI {
   SelectionPoint selStart, selEnd, cursor, cursorDrag, dragStart, dragEnd;
   bool selecting, selectingFull, dragging, curNibble, orderNibble, followOrders, followPattern, changeAllOrders, mobileUI;
   bool collapseWindow, demandScrollX, fancyPattern, wantPatName, firstFrame, tempoView, waveHex, waveSigned, waveGenVisible, lockLayout, editOptsVisible, latchNibble, nonLatchNibble;
-  bool keepLoopAlive;
+  bool keepLoopAlive, orderScrollLocked;
   FurnaceGUIWindows curWindow, nextWindow, curWindowLast;
   std::atomic<FurnaceGUIWindows> curWindowThreadSafe;
   float peak[2];
@@ -1562,7 +1562,7 @@ class FurnaceGUI {
   int bindSetTarget, bindSetPrevValue;
   bool bindSetActive, bindSetPending;
 
-  float nextScroll, nextAddScroll;
+  float nextScroll, nextAddScroll, orderScroll, orderScrollSlideOrigin;
 
   int layoutTimeBegin, layoutTimeEnd, layoutTimeDelta;
   int renderTimeBegin, renderTimeEnd, renderTimeDelta;

src/gui/orders.cpp

@@ -25,6 +25,20 @@
 void FurnaceGUI::drawMobileOrderSel() {
   if (!portrait) return;
 
+  if (!orderScrollLocked) {
+    if (orderScroll>(float)curOrder-0.005f && orderScroll<(float)curOrder+0.005f) {
+      orderScroll=curOrder;
+    } else if (orderScroll<curOrder) {
+      orderScroll+=MAX(0.05f,(curOrder-orderScroll)*0.2f);
+      if (orderScroll>curOrder) orderScroll=curOrder;
+      WAKE_UP;
+    } else {
+      orderScroll-=MAX(0.05f,(orderScroll-curOrder)*0.2f);
+      if (orderScroll<curOrder) orderScroll=curOrder;
+      WAKE_UP;
+    }
+  }
+
   ImGui::SetNextWindowPos(ImVec2(0.0f,mobileMenuPos*-0.65*canvasH));
   ImGui::SetNextWindowSize(ImVec2(canvasW,0.12*canvasW));
   if (ImGui::Begin("OrderSel",NULL,globalWinFlags)) {
@@ -41,18 +55,33 @@ void FurnaceGUI::drawMobileOrderSel() {
     );
     ImRect rect=ImRect(minArea,maxArea);
     ImGui::ItemSize(size,style.FramePadding.y);
-    ImU32 col=ImGui::GetColorU32(ImGuiCol_Text);
     if (ImGui::ItemAdd(rect,ImGui::GetID("OrderSelW"))) {
-      String text=fmt::sprintf("%.2X",curOrder);
+      ImVec2 centerPos=ImLerp(minArea,maxArea,ImVec2(0.5,0.5));
+      
+      for (int i=0; i<e->curSubSong->ordersLen; i++) {
+        ImVec2 pos=centerPos;
+        ImVec4 color=uiColors[GUI_COLOR_TEXT];
+        pos.x+=(i-orderScroll)*40.0*dpiScale;
+        if (pos.x<-200.0*dpiScale) continue;
+        if (pos.x>canvasW+200.0*dpiScale) break;
+        String text=fmt::sprintf("%.2X",i);
+        float targetSize=size.y-fabs(i-orderScroll)*2.0*dpiScale;
+        if (targetSize<8.0*dpiScale) targetSize=8.0*dpiScale;
+        color.w*=MIN(1.0f,targetSize/size.y);
 
-      ImVec2 pos=ImLerp(minArea,maxArea,ImVec2(0.5,0.0));
-      ImGui::PushFont(bigFont);
-      ImVec2 textSize=ImGui::CalcTextSize(text.c_str());
-      ImGui::PopFont();
+        ImGui::PushFont(bigFont);
+        ImVec2 textSize=ImGui::CalcTextSize(text.c_str());
+        ImGui::PopFont();
 
-      pos.x-=textSize.x*0.5*(size.y/textSize.y);
+        pos.x-=textSize.x*0.5*(targetSize/textSize.y);
+        pos.y-=targetSize*0.5;
 
-      dl->AddText(bigFont,size.y,pos,col,text.c_str());
+        dl->AddText(bigFont,targetSize,pos,ImGui::GetColorU32(color),text.c_str());
+      }
+    }
+    if (ImGui::IsItemClicked()) {
+      orderScrollSlideOrigin=ImGui::GetMousePos().x+orderScroll*40.0f*dpiScale;
+      orderScrollLocked=true;
     }
   }
   ImGui::End();