merge master

1 files changed, 123 insertions, 0 deletions

diff --git a/src/imgmanager.cpp b/src/imgmanager.cpp
new file mode 100644
index 0000000..b97083c
--- /dev/null
+++ b/src/imgmanager.cpp
@@ -0,0 +1,123 @@
+#include "imgmanager.hpp"
+#include "util.hpp"
+#include "abaddon.hpp"
+
+ImageManager::ImageManager() {
+    m_cb_dispatcher.connect(sigc::mem_fun(*this, &ImageManager::RunCallbacks));
+}
+
+Cache &ImageManager::GetCache() {
+    return m_cache;
+}
+
+void ImageManager::ClearCache() {
+    m_cache.ClearCache();
+}
+
+Glib::RefPtr<Gdk::Pixbuf> ImageManager::ReadFileToPixbuf(std::string path) {
+    const auto &data = ReadWholeFile(path);
+    if (data.size() == 0) return Glib::RefPtr<Gdk::Pixbuf>(nullptr);
+    auto loader = Gdk::PixbufLoader::create();
+    loader->signal_size_prepared().connect([&loader](int w, int h) {
+        int cw, ch;
+        GetImageDimensions(w, h, cw, ch); // what could go wrong
+        loader->set_size(cw, ch);
+    });
+    loader->write(static_cast<const guint8 *>(data.data()), data.size());
+    loader->close();
+    return loader->get_pixbuf();
+}
+
+Glib::RefPtr<Gdk::PixbufAnimation> ImageManager::ReadFileToPixbufAnimation(std::string path, int w, int h) {
+    const auto &data = ReadWholeFile(path);
+    if (data.size() == 0) return Glib::RefPtr<Gdk::PixbufAnimation>(nullptr);
+    auto loader = Gdk::PixbufLoader::create();
+    loader->signal_size_prepared().connect([&loader, w, h](int, int) {
+        loader->set_size(w, h);
+    });
+    loader->write(static_cast<const guint8 *>(data.data()), data.size());
+    loader->close();
+    return loader->get_animation();
+}
+
+void ImageManager::LoadFromURL(std::string url, callback_type cb) {
+    sigc::signal<void(Glib::RefPtr<Gdk::Pixbuf>)> signal;
+    signal.connect(cb);
+    m_cache.GetFileFromURL(url, [this, url, signal](std::string path) {
+        try {
+            auto buf = ReadFileToPixbuf(path);
+            if (!buf)
+                printf("%s (%s) is null\n", url.c_str(), path.c_str());
+            else {
+                m_cb_mutex.lock();
+                m_cb_queue.push([signal, buf]() { signal.emit(buf); });
+                m_cb_dispatcher.emit();
+                m_cb_mutex.unlock();
+            }
+        } catch (const std::exception &e) {
+            fprintf(stderr, "err loading pixbuf from %s: %s\n", path.c_str(), e.what());
+        }
+    });
+}
+
+void ImageManager::LoadAnimationFromURL(std::string url, int w, int h, callback_anim_type cb) {
+    sigc::signal<void(Glib::RefPtr<Gdk::PixbufAnimation>)> signal;
+    signal.connect(cb);
+    m_cache.GetFileFromURL(url, [this, url, signal, w, h](std::string path) {
+        try {
+            auto buf = ReadFileToPixbufAnimation(path, w, h);
+            if (!buf)
+                printf("%s (%s) is null\n", url.c_str(), path.c_str());
+            else {
+                m_cb_mutex.lock();
+                m_cb_queue.push([signal, buf]() { signal.emit(buf); });
+                m_cb_dispatcher.emit();
+                m_cb_mutex.unlock();
+            }
+        } catch (const std::exception &e) {
+            fprintf(stderr, "err loading pixbuf animation from %s: %s\n", path.c_str(), e.what());
+        }
+    });
+}
+
+void ImageManager::Prefetch(std::string url) {
+    m_cache.GetFileFromURL(url, [](const auto &) {});
+}
+
+void ImageManager::RunCallbacks() {
+    m_cb_mutex.lock();
+    m_cb_queue.front()();
+    m_cb_queue.pop();
+    m_cb_mutex.unlock();
+}
+
+Glib::RefPtr<Gdk::Pixbuf> ImageManager::GetFromURLIfCached(std::string url) {
+    std::string path = m_cache.GetPathIfCached(url);
+    if (path != "")
+        return ReadFileToPixbuf(path);
+
+    return Glib::RefPtr<Gdk::Pixbuf>(nullptr);
+}
+
+Glib::RefPtr<Gdk::PixbufAnimation> ImageManager::GetAnimationFromURLIfCached(std::string url, int w, int h) {
+    std::string path = m_cache.GetPathIfCached(url);
+    if (path != "")
+        return ReadFileToPixbufAnimation(path, w, h);
+
+    return Glib::RefPtr<Gdk::PixbufAnimation>(nullptr);
+}
+
+Glib::RefPtr<Gdk::Pixbuf> ImageManager::GetPlaceholder(int size) {
+    std::string name = "/placeholder" + std::to_string(size);
+    if (m_pixs.find(name) != m_pixs.end())
+        return m_pixs.at(name);
+
+    try {
+        auto buf = Gdk::Pixbuf::create_from_file(Abaddon::Get().GetResPath() + "/decamarks.png", size, size);
+        m_pixs[name] = buf;
+        return buf;
+    } catch (std::exception &e) {
+        fprintf(stderr, "error loading placeholder\n");
+        return Glib::RefPtr<Gdk::Pixbuf>(nullptr);
+    }
+}