From 30dbaeb2b175c1e67f57aba748ced1a2280fb56d Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Thu, 1 Oct 2020 19:12:33 +0200
Subject: Matrix: add room name and avatar of the current room at the top

---
 include/AsyncImageLoader.hpp | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 include/AsyncImageLoader.hpp

(limited to 'include/AsyncImageLoader.hpp')

diff --git a/include/AsyncImageLoader.hpp b/include/AsyncImageLoader.hpp
new file mode 100644
index 0000000..27e46e3
--- /dev/null
+++ b/include/AsyncImageLoader.hpp
@@ -0,0 +1,36 @@
+#pragma once
+
+#include <string>
+#include <SFML/System/Vector2.hpp>
+#include <SFML/Graphics/Texture.hpp>
+#include <memory>
+#include <future>
+
+namespace QuickMedia {
+    enum class LoadingState {
+        NOT_LOADED,
+        LOADING,
+        FINISHED_LOADING,
+        APPLIED_TO_TEXTURE
+    };
+
+    struct ThumbnailData {
+        bool referenced = false;
+        LoadingState loading_state = LoadingState::NOT_LOADED;
+        sf::Texture texture;
+        std::unique_ptr<sf::Image> image; // Set in another thread. This should be .reset after loading it into |texture|, to save memory
+    };
+
+    class AsyncImageLoader {
+    public:
+        // Returns false if the image loader is already loading an image. In that case, this function should be called again later.
+        // set |resize_target_size| to {0, 0} to disable resizing.
+        // |thumbnail_data.loading_state| has to be LoadingState::NOT_LOADED when calling this!
+        // Note: this method is not thread-safe
+        bool load_thumbnail(const std::string &url, bool local, sf::Vector2i resize_target_size, bool use_tor, std::shared_ptr<ThumbnailData> thumbnail_data);
+        void update();
+    private:
+        bool loading_image = false;
+        std::future<void> load_image_future;
+    };
+}
\ No newline at end of file
-- 
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