From a63812707d690a1a35148ab248db8810df408343 Mon Sep 17 00:00:00 2001
From: Eliz <elizkilic@gmail.com>
Date: Sat, 24 Jan 2026 00:35:36 +0000
Subject: [PATCH] update

---
 src/activities/home/BookCoverCache.cpp | 48 +++++++++++++++++++++-----
 src/activities/home/BookCoverCache.h   |  4 ++-
 2 files changed, 43 insertions(+), 9 deletions(-)

diff --git a/src/activities/home/BookCoverCache.cpp b/src/activities/home/BookCoverCache.cpp
index 06c988e2..d7e96643 100644
--- a/src/activities/home/BookCoverCache.cpp
+++ b/src/activities/home/BookCoverCache.cpp
@@ -4,7 +4,8 @@
 #include "util/StringUtils.h"
 #include <sys/stat.h>
 
-BookCoverCache::BookCoverCache(const std::string& cache_dir) : cache_dir(cache_dir) {
+BookCoverCache::BookCoverCache(const std::string& cache_dir, GfxRenderer* renderer)
+    : cache_dir(cache_dir), renderer(renderer) {
   // Ensure the cache directory exists
   if (!SdMan.exists(cache_dir.c_str())) {
     SdMan.mkdir(cache_dir.c_str());
@@ -14,6 +15,18 @@ BookCoverCache::BookCoverCache(const std::string& cache_dir) : cache_dir(cache_d
 BookCoverCache::~BookCoverCache() {
 }
 
+
+
+bool BookCoverCache::render(const std::string& book_path, int x, int y, int width,
+                            int height) {
+  auto bitmap = getCover(book_path);
+  if (bitmap) {
+    renderer->drawBitmap(*bitmap, x, y, width, height);
+    return true;
+  }
+  return false;
+}
+
 std::shared_ptr<Bitmap> BookCoverCache::getCover(const std::string& book_path) {
   std::string cache_path = getCachePath(book_path);
 
@@ -46,6 +59,12 @@ bool BookCoverCache::isCacheValid(const std::string& book_path) const {
     return SdMan.exists(cache_path.c_str());
 }
 
+
+void BookCoverCache::setTargetSize(int width, int height) {
+  target_width = width;
+  target_height = height;
+}
+
 std::shared_ptr<Bitmap> BookCoverCache::generateThumbnail(const std::string& book_path) {
     std::string coverBmpPath;
     bool hasCoverImage = false;
@@ -70,14 +89,27 @@ std::shared_ptr<Bitmap> BookCoverCache::generateThumbnail(const std::string& boo
         // This is not very efficient, we are copying the file.
         // We should ideally generate the thumbnail directly to the cache path.
         // For now, this will do.
-        if(SdMan.copy(coverBmpPath.c_str(), cache_path.c_str())) {
-            FsFile file;
-            if (SdMan.openFileForRead("CACHE", cache_path, file)) {
-                auto bitmap = std::make_shared<Bitmap>(file);
-                if (bitmap->parseHeaders() == BmpReaderError::Ok) {
-                    return bitmap;
-                }
+        FsFile source_file;
+        FsFile dest_file;
+        if (SdMan.openFileForRead("THUMB", coverBmpPath, source_file) &&
+            SdMan.openFileForWrite("THUMB", cache_path, dest_file)) {
+          uint8_t buffer[512];
+          while (source_file.available()) {
+            int bytes_read = source_file.read(buffer, sizeof(buffer));
+            if (bytes_read > 0) {
+              dest_file.write(buffer, bytes_read);
             }
+          }
+          source_file.close();
+          dest_file.close();
+
+          FsFile file;
+          if (SdMan.openFileForRead("CACHE", cache_path, file)) {
+            auto bitmap = std::make_shared<Bitmap>(file);
+            if (bitmap->parseHeaders() == BmpReaderError::Ok) {
+              return bitmap;
+            }
+          }
         }
     }
 
diff --git a/src/activities/home/BookCoverCache.h b/src/activities/home/BookCoverCache.h
index bb80d663..b75b5b26 100644
--- a/src/activities/home/BookCoverCache.h
+++ b/src/activities/home/BookCoverCache.h
@@ -18,7 +18,9 @@ class BookCoverCache {
 
  private:
   std::string getCachePath(const std::string& book_path) const;
-  bool generateThumbnail(const std::string& book_path);
+  std::shared_ptr<Bitmap> generateThumbnail(const std::string& book_path);
+  std::shared_ptr<Bitmap> getCover(const std::string& book_path);
+  bool isCacheValid(const std::string& book_path) const;
   
   std::string cache_dir;
   GfxRenderer* renderer;