From 1115118a13f9003c81ac058c0e012b55f4ff0c99 Mon Sep 17 00:00:00 2001
From: GuillaumeBft <54895740+GuillaumeBft@users.noreply.github.com>
Date: Tue, 10 Dec 2019 17:12:45 +0100
Subject: [PATCH] Show only possessed checkbox in addons screen #3376 (#4162)

* Show only possessed checkbox in addons screen

* add var w_show_possessed

* Update addons_screen.stkgui
---
 data/gui/screens/addons_screen.stkgui |  4 ++++
 src/states_screens/addons_screen.cpp  | 12 +++++++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/data/gui/screens/addons_screen.stkgui b/data/gui/screens/addons_screen.stkgui
index c033a1e4e..8267a95cb 100644
--- a/data/gui/screens/addons_screen.stkgui
+++ b/data/gui/screens/addons_screen.stkgui
@@ -37,6 +37,10 @@
         </tabs>
 
         <box proportion="1" width="98%" align="center" layout="vertical-row" padding="6">
+            <div layout="horizontal-row" width="100%" height="fit">
+                <checkbox id="show_possessed"/>
+                <label height="100%" I18N="In the addons screen, above the list of addons to be installed" text="Show only possessed" word_wrap="true"/>
+            </div>
             <list id="list_addons" x="0" y="0" width="100%" height="100%" word_wrap="true" alternate_bg="true"/>
         </box>
     </div>
diff --git a/src/states_screens/addons_screen.cpp b/src/states_screens/addons_screen.cpp
index 080d03ba2..1e155a880 100644
--- a/src/states_screens/addons_screen.cpp
+++ b/src/states_screens/addons_screen.cpp
@@ -167,6 +167,10 @@ void AddonsScreen::init()
                         getWidget<GUIEngine::SpinnerWidget>("filter_rating");
     w_filter_rating->setValue(0);
 
+    GUIEngine::CheckBoxWidget* w_show_possessed = 
+        getWidget<GUIEngine::CheckBoxWidget>("show_possessed");
+    w_show_possessed->setState(false);
+
     // Set the default sort order
     Addon::setSortOrder(Addon::SO_DEFAULT);
     loadList();
@@ -212,12 +216,18 @@ void AddonsScreen::loadList()
     GUIEngine::SpinnerWidget* w_filter_rating =
                         getWidget<GUIEngine::SpinnerWidget>("filter_rating");
     float rating = w_filter_rating->getValue() / 2.0f;
+    
+    GUIEngine::CheckBoxWidget* w_show_possessed = 
+        getWidget<GUIEngine::CheckBoxWidget>("show_possessed");
 
     // First create a list of sorted entries
     PtrVector<const Addon, REF> sorted_list;
     for(unsigned int i=0; i<addons_manager->getNumAddons(); i++)
     {
         const Addon & addon = addons_manager->getAddon(i);
+        // Ignore not installed addons if the checkbox is enabled
+        if(w_show_possessed->getState() && !addon.isInstalled())
+            continue;
         // Ignore addons of a different type
         if(addon.getType()!=m_type) continue;
         // Ignore invisible addons
@@ -453,7 +463,7 @@ void AddonsScreen::eventCallback(GUIEngine::Widget* widget,
             loadList();
         }
     }
-    else if (name == "filter_search")
+    else if (name == "filter_search" || name == "show_possessed")
     {
         loadList();
     }