Grayscale button now functions as expected

Charcoal/Charcoal/Charcoal.cpp

@@ -99,6 +99,21 @@ void Charcoal::deleteBooks(const JSObject& thisobject, const JSArgs& args)
     return;
 }
 
+void Charcoal::grayscaleName(const JSObject& thisobject, const JSArgs& args) {
+    MessageBoxA(NULL, "Grayscale Books Hook", "Grayscale Books Hook", MB_OK);
+    // Get the first argument
+    JSValueRef arg = args[0];
+    JSContextRef ctx = JSGlobalContextCreate(NULL);
+    // Convert it to a number
+    int ID = JSValueToNumber(ctx, arg, 0);
+
+    // Call the grayscale method
+    ebooks.grayscale(ID);
+
+    return;
+}
+
+
 JSValue Charcoal::printAllBooks(const JSObject& thisObject, const JSArgs& args) {
 
     std::string bookList = ebooks.printall();
@@ -149,10 +164,7 @@ JSValueRef OnButtonClick(JSContextRef ctx, JSObjectRef function,
     return JSValueMakeNull(ctx);
 }
 
-void Charcoal::grayscaleName(const JSObject& thisObject, const JSArgs& args) { //at the moment just gets metadata, Thomas will puts grayscale hooks here.
-    //std::string added = ebooks.getStringData();
-    //MessageBoxA(NULL, added.c_str(), "Book Data", MB_OK);
-}
+
 
 
 void Charcoal::OpenFile(const JSObject& thisObject, const JSArgs& args)
@@ -210,7 +222,7 @@ void Charcoal::OnDOMReady(ultralight::View* caller,
     SetJSContext(context->ctx());
     JSObject global = JSGlobalObject();
     global["AddBook"] = BindJSCallback(&Charcoal::OpenFile);
-    global["nameToGrayscale"] = BindJSCallback(&Charcoal::grayscaleName);
+    global["grayscaleName"] = BindJSCallback(&Charcoal::grayscaleName);
 	global["deleteBook"] = BindJSCallback(&Charcoal::deleteBooks);
 
     auto scoped_context = context;

Charcoal/Charcoal/Epub.cpp

@@ -15,10 +15,9 @@
 #include <opencv2/imgproc/imgproc.hpp>
 #define _CRT_SECURE_NO_WARNINGS
 #pragma once
-book Epub::add(PWSTR path)
+book Epub::add(std::string npath)
 {
     book curr;
-    std::string npath = wstrtostr(path);
     using namespace libzippp;
     ZipArchive zf(npath);
     zf.open(ZipArchive::ReadOnly);
@@ -98,6 +97,7 @@ book Epub::add(PWSTR path)
                 }
                 meta = meta->NextSiblingElement();
             }
+
             collection.push_back(curr);
             //adding book to the collection
         }
@@ -108,10 +108,10 @@ book Epub::add(PWSTR path)
     return curr;
 }
 
-void Epub::grayscaleEpub(PWSTR path) {
-    std::string npath = wstrtostr(path);
+void Epub::grayscaleEpub(std::string path) {
+    //std::string npath = wstrtostr(path);
     using namespace libzippp;
-    ZipArchive zipArchive(npath);
+    ZipArchive zipArchive(path);
     zipArchive.open(ZipArchive::Write);
     std::vector<ZipEntry> entries = zipArchive.getEntries();
     std::vector<ZipEntry>::iterator it;
@@ -128,9 +128,7 @@ void Epub::grayscaleEpub(PWSTR path) {
             // Read the image file from the epub archive
             int width, height, channels;
             unsigned char* image = stbi_load_from_memory((unsigned char*)entry.readAsBinary(), entry.getSize(), &width, &height, &channels, 0);
-
-            // Grayscale the image
-            //grayscaleImage(image, width, height);
+
 
             std::string base_filename = name.substr(name.find_last_of("/\\") + 1);
             if(fileExt == "jpeg" || fileExt == "jpg")

Charcoal/Charcoal/Epub.h

@@ -3,9 +3,8 @@
 class Epub : public Library
 {
 	public:
-		book add(PWSTR path);
-		void grayscaleEpub(PWSTR Path);
+		book add(std::string path);
+		void grayscaleEpub(std::string path);
 	private:
-		void grayscaleImage(unsigned char* imageData, int width, int height);
 };
 

Charcoal/Charcoal/Library.cpp

@@ -87,8 +87,10 @@ std::string Library::add(PWSTR path)
     if (f == "epub")
     {
         Epub e;
-        book curr = e.add(path);
+        std::string npath = wstrtostr(path);
+        book curr = e.add(npath);
         curr.ID = ID;
+        curr.path = npath;
         ++ID;
         collection.push_back(curr);
         titles.push_back(curr.title);
@@ -134,4 +136,35 @@ int Library::remove(int ID) // this actually removes the book from the library.
 		}   
     }
     return -1;
+}
+
+int Library::grayscale(int ID) 
+{
+    for (int i = 0; i < collection.size(); i++)
+    {
+        if (collection[i].ID == ID)
+        {
+            std::string path = collection[i].path;
+            std::string f = getFileExtension((path));
+            if (f == "epub")
+            {
+                Epub e;
+                e.grayscaleEpub(path);
+                return 1;
+            }
+            else if (f == "AZW3" || f == "azw3")
+            {
+
+            }
+            else if (f == "pdf" || f == "PDF")
+            {
+
+            }
+            else
+            {
+
+            }
+        }
+    }
+    return -1;
 }

Charcoal/Charcoal/Library.h

@@ -15,7 +15,7 @@ class book {
     std::string language;
     std::string description;
 
-    PWSTR path;
+    std::string path;
 
 
 };
@@ -29,10 +29,10 @@ class Library {
     std::string getFileExtension(const std::string& filePath);
     int remove(int ID);
     std::vector<std::string> getBookTitles();
+    int grayscale(int ID);
 protected:
     std::vector<book> collection;
     std::vector<std::string> titles;
-    void push(book b);
 
 };
 

Charcoal/x64/Debug/assets/app.html

@@ -292,7 +292,16 @@ <h2 id="result">
             <button class="button-28" onclick="gscalebutton()">Grayscale</button>
             <script>
                 function gscalebutton() {
-                    nameToGrayscale();
+                    var array = []
+                    var checkboxes = document.querySelectorAll('input[type=checkbox]:checked')
+                    for (var i = 0; i < checkboxes.length; i++) {
+                        array.push(checkboxes[i].id)
+                        alert(checkboxes[i].id);
+                        var toGray = parseInt(checkboxes[i].id); //sets string ID to int so it can be passed back.
+                        grayscaleName(toGray);
+                    }
+
+                    OnButtonClick();
                 }
             </script>