From 528ef68a1d1eb40262a5964a58d659d98d501b03 Mon Sep 17 00:00:00 2001
From: Bertrand Songis <bsongis@gmail.com>
Date: Thu, 13 Aug 2020 10:32:28 +0200
Subject: [PATCH] Carousel update

---
 radio/src/thirdparty/libopenui/src/carousel.cpp | 7 +++++--
 radio/src/thirdparty/libopenui/src/carousel.h   | 8 ++++----
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/radio/src/thirdparty/libopenui/src/carousel.cpp b/radio/src/thirdparty/libopenui/src/carousel.cpp
index 44c069ead..5495ba000 100644
--- a/radio/src/thirdparty/libopenui/src/carousel.cpp
+++ b/radio/src/thirdparty/libopenui/src/carousel.cpp
@@ -21,9 +21,12 @@
 
 void CarouselWindow::update()
 {
-  auto first = min<int>(selection - 2, items.size() - 5);
+  auto first = min<int>(selection - 2, items.size() - count);
   first = max(0, first);
   coord_t lastPosition = 0;
+  coord_t spacing = 10;
+  if (count > 1)
+    spacing = (width() - items[0]->back->width() * (count - 1) - items[0]->front->width()) / (count - 1);
 
   int index = 0;
   for (auto & item: items) {
@@ -41,7 +44,7 @@ void CarouselWindow::update()
     window->setTop((height() - window->height()) / 2);
     if (index == first)
       setScrollPositionX(lastPosition);
-    lastPosition += window->width() + CAROUSEL_SPACING;
+    lastPosition += window->width() + spacing;
     index += 1;
   }
 
diff --git a/radio/src/thirdparty/libopenui/src/carousel.h b/radio/src/thirdparty/libopenui/src/carousel.h
index 2fb4a7a82..23b4ec0ea 100644
--- a/radio/src/thirdparty/libopenui/src/carousel.h
+++ b/radio/src/thirdparty/libopenui/src/carousel.h
@@ -23,8 +23,6 @@
 #include <vector>
 #include "button.h"
 
-constexpr coord_t CAROUSEL_SPACING = 20;
-
 class CarouselItem {
   public:
     CarouselItem(Window * front, Window * back):
@@ -50,8 +48,9 @@ class CarouselWindow: public Window {
   friend class Carousel;
 
   public:
-    CarouselWindow(Window * parent, const rect_t & rect):
-      Window(parent, rect, NO_SCROLLBAR)
+    CarouselWindow(Window * parent, const rect_t & rect, uint8_t count):
+      Window(parent, rect, NO_SCROLLBAR),
+      count(count)
     {
     }
 
@@ -90,6 +89,7 @@ class CarouselWindow: public Window {
   protected:
     std::vector<CarouselItem *> items;
     int selection = 0;
+    uint8_t count;
     void update();
 };