Fixed memory leak

The image widget is responsible for deleting the loaded part of the image
Check for correct type of selected file
Error checking after image upload

1 files changed, 28 insertions, 4 deletions

diff --git a/puzzle.cpp b/puzzle.cpp
index 3fbd026..8cca327 100644
--- a/puzzle.cpp
+++ b/puzzle.cpp
@@ -4,13 +4,15 @@
 #include <algorithm>
 #include <stdlib.h>
 #include <string>
+#include <string.h>
+#include <FL/Fl.H>
 #include <FL/Fl_PNG_Image.H>
+#include <FL/fl_ask.H>
 #include <utility>
 #include <memory>
 #include <filesystem>
 #include <random>
 
-
 GameParams* GameParams::instance = nullptr;
 
 void GameParams::CalculateStandardPuzzlePos()
@@ -47,8 +49,10 @@ void GameParams::NextUntestedPuzzles()
     /*
      * check if puzzles already were created
      */
-    if(puzzles.size() != 0)
+    if(puzzles.size() != 0) {
         puzzles.clear();
+        Fl::do_widget_deletion();
+    }
     /*
      * ======== creating puzzles ===========
      */
@@ -74,13 +78,33 @@ void GameParams::NextUntestedPuzzles()
         find_path_to_picture(tmp_puzzle->path, cur_directory,
                              tmp_puzzle->sequence_number);
         Fl_PNG_Image *img = new Fl_PNG_Image(tmp_puzzle->path.c_str());
-        // TODO check fails img->fail();
+        switch (img->fail()) {
+            case Fl_Image::ERR_NO_IMAGE:
+            case Fl_Image::ERR_FILE_ACCESS:
+                fl_alert("%s: %s", tmp_puzzle->path.c_str(), strerror(errno));
+                exit(1);
+            case Fl_Image::ERR_FORMAT:
+                fl_alert("couldn't decode image");
+                exit(1);
+        }
         tmp_puzzle->image(img);
+        tmp_puzzle->stored_img_pointer = img;
         tmp_puzzle->callback(press_button_callback, this);
         puzzles.push_back(std::move(tmp_puzzle));
     }
-    win->end();
     ResetFreePuzzles();
+   /*
+    * Checking image shuffling
+    */
+    bool shuffled_img = false;
+    for(int i = 0; i < puzzle_pieces-1; ++i)
+        if(puzzles[i]->sequence_number != i) {
+            shuffled_img = true;
+            break;
+        }
+    if(!shuffled_img)
+        NextUntestedPuzzles();
+    win->end();
 }
 
 bool GameParams::IsSolvability()