Update

main.c

@@ -56,7 +56,7 @@ int init() {
         printf("Renderer could not be created SDL_Error: %s\n", SDL_GetError());
         return 1;
     }
-    smallFont = prepText(renderer, 10, "../PublicPixel.ttf", 255, 255, 255, 255);
+    smallFont = prepText(renderer, 12, "../PublicPixel.ttf", 255, 255, 255, 255);
     init_editor(&codeEditor, &smallFont, 50, 50, renderer);
     activeEditor = &codeEditor;
     SDL_RenderSetLogicalSize(renderer, SCREEN_WIDTH, SCREEN_HEIGHT);
@@ -87,6 +87,128 @@ int render() {
     return 0;
 }
 
+SDL_Keycode ConvertKPToNonKP(SDL_Keycode keycode) {
+    switch (keycode) {
+        case SDLK_KP_0:
+            return SDLK_0;
+        case SDLK_KP_1:
+            return SDLK_1;
+        case SDLK_KP_2:
+            return SDLK_2;
+        case SDLK_KP_3:
+            return SDLK_3;
+        case SDLK_KP_4:
+            return SDLK_4;
+        case SDLK_KP_5:
+            return SDLK_5;
+        case SDLK_KP_6:
+            return SDLK_6;
+        case SDLK_KP_7:
+            return SDLK_7;
+        case SDLK_KP_8:
+            return SDLK_8;
+        case SDLK_KP_9:
+            return SDLK_9;
+        case SDLK_KP_PERIOD:
+            return SDLK_PERIOD;
+        case SDLK_KP_COMMA:
+            return SDLK_COMMA;
+        case SDLK_KP_DIVIDE:
+            return SDLK_SLASH;
+        case SDLK_KP_MULTIPLY:
+            return SDLK_ASTERISK;
+        case SDLK_KP_MINUS:
+            return SDLK_MINUS;
+        case SDLK_KP_PLUS:
+            return SDLK_PLUS;
+        case SDLK_KP_ENTER:
+            return SDLK_RETURN;
+        case SDLK_KP_EQUALS:
+            return SDLK_EQUALS;
+        case SDLK_KP_LEFTPAREN:
+            return SDLK_LEFTPAREN;
+        case SDLK_KP_RIGHTPAREN:
+            return SDLK_RIGHTPAREN;
+        case SDLK_KP_LEFTBRACE:
+            return SDLK_LEFTBRACKET;
+        case SDLK_KP_RIGHTBRACE:
+            return SDLK_RIGHTBRACKET;
+        case SDLK_KP_TAB:
+            return SDLK_TAB;
+        case SDLK_KP_BACKSPACE:
+            return SDLK_BACKSPACE;
+        case SDLK_KP_A:
+            return SDLK_a;
+        case SDLK_KP_B:
+            return SDLK_b;
+        case SDLK_KP_C:
+            return SDLK_c;
+        case SDLK_KP_D:
+            return SDLK_d;
+        case SDLK_KP_E:
+            return SDLK_e;
+        case SDLK_KP_F:
+            return SDLK_f;
+        case SDLK_KP_XOR:
+            return SDLK_CARET;
+        case SDLK_KP_PERCENT:
+            return SDLK_PERCENT;
+        case SDLK_KP_LESS:
+            return SDLK_LESS;
+        case SDLK_KP_GREATER:
+            return SDLK_GREATER;
+        case SDLK_KP_AMPERSAND:
+            return SDLK_AMPERSAND;
+        case SDLK_KP_DBLAMPERSAND:
+            return SDLK_AMPERSAND;  // No direct match, best alternative
+        case SDLK_KP_VERTICALBAR:
+            return SDLK_BACKSLASH;  // Vertical bar alternative
+        case SDLK_KP_DBLVERTICALBAR:
+            return SDLK_BACKSLASH;  // No direct match
+        case SDLK_KP_COLON:
+            return SDLK_COLON;
+        case SDLK_KP_HASH:
+            return SDLK_HASH;
+        case SDLK_KP_SPACE:
+            return SDLK_SPACE;
+        case SDLK_KP_AT:
+            return SDLK_AT;
+        case SDLK_KP_EXCLAM:
+            return SDLK_EXCLAIM;
+        case SDLK_KP_MEMSTORE:
+            return SDLK_UNKNOWN;  // No direct match
+        case SDLK_KP_MEMRECALL:
+            return SDLK_UNKNOWN;
+        case SDLK_KP_MEMCLEAR:
+            return SDLK_UNKNOWN;
+        case SDLK_KP_MEMADD:
+            return SDLK_PLUS;
+        case SDLK_KP_MEMSUBTRACT:
+            return SDLK_MINUS;
+        case SDLK_KP_MEMMULTIPLY:
+            return SDLK_ASTERISK;
+        case SDLK_KP_MEMDIVIDE:
+            return SDLK_SLASH;
+        case SDLK_KP_PLUSMINUS:
+            return SDLK_UNKNOWN;
+        case SDLK_KP_CLEAR:
+            return SDLK_UNKNOWN;
+        case SDLK_KP_CLEARENTRY:
+            return SDLK_UNKNOWN;
+        case SDLK_KP_BINARY:
+            return SDLK_UNKNOWN;
+        case SDLK_KP_OCTAL:
+            return SDLK_UNKNOWN;
+        case SDLK_KP_DECIMAL:
+            return SDLK_UNKNOWN;
+        case SDLK_KP_HEXADECIMAL:
+            return SDLK_UNKNOWN;
+        default:
+            return keycode; // If it's not a KP key, return it unchanged
+    }
+}
+
+
 int processEvent(SDL_Event e) {
     if (e.type == SDL_QUIT) { return 0; }
     else if (e.type == SDL_WINDOWEVENT && e.window.event == SDL_WINDOWEVENT_RESIZED) {
@@ -97,7 +219,7 @@ int processEvent(SDL_Event e) {
         SDL_Rect viewport = {0, 0, newWidth, newHeight};
         SDL_RenderSetViewport(renderer, &viewport);
     } else if (e.type == SDL_KEYDOWN) {
-        int keySym = e.key.keysym.sym;
+        int keySym = ConvertKPToNonKP(e.key.keysym.sym);
         switch (keySym) {
             case SDLK_UP:
                 if (activeEditor) {
@@ -122,18 +244,20 @@ int processEvent(SDL_Event e) {
             case SDLK_RETURN:
             case SDLK_RETURN2:
                 if (activeEditor && !activeEditor->readOnly) {
-                    insert_line_rel(activeEditor);
+                    insert_line_rel(activeEditor, renderer);
                 }
                 break;
             default:
                 break;
         }
-        if (activeEditor && !activeEditor->readOnly) {
+        if (activeEditor && !activeEditor->readOnly && activeEditor->cursor_pos < MAX_LINE_WIDTH) {
             if (keySym >= 32 && keySym <= 126) {
                 if (keySym > 0x60 && keySym < 0x7b) {
                     keySym -= 0x20;
                 }
                 insert_character(activeEditor, (keySym & 0xff), renderer);
+            } else if (keySym == SDLK_BACKSPACE || keySym == SDLK_DELETE) {
+                remove_character(activeEditor, renderer);
             }
         }
     }