From a086752f5c2f70275f98b8698598db337fca498a Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Thu, 18 Mar 2021 19:18:39 -0400
Subject: main-menu: Add stub actions and init active button

---
(limited to 'src')

diff --git a/src/main-menu.c b/src/main-menu.c
index 243fcdd..3d13986 100644
--- a/src/main-menu.c
+++ b/src/main-menu.c
@@ -27,15 +27,17 @@
 #include "util.h"
 
 struct _db_main_menu_button {
-	SDL_Texture                 *texture_text;
-	SDL_Texture                 *texture_over;
-	SDL_Rect                     rect;
-	struct _db_main_menu_button *u;
-	struct _db_main_menu_button *d;
-	struct _db_main_menu_button *l;
-	struct _db_main_menu_button *r;
-	struct _db_main_menu_button *p;
-	struct _db_main_menu_button *n;
+	SDL_Texture                  *texture_text;
+	SDL_Texture                  *texture_over;
+	SDL_Rect                      rect;
+	struct _db_main_menu_button  *u;
+	struct _db_main_menu_button  *d;
+	struct _db_main_menu_button  *l;
+	struct _db_main_menu_button  *r;
+	struct _db_main_menu_button  *p;
+	struct _db_main_menu_button  *n;
+	void                        (*action)(void *);
+	void                         *user_data;
 };
 
 static SDL_Texture *
@@ -65,6 +67,26 @@ _db_main_menu_text(TTF_Font *font, const char *text, SDL_Color *color,
 	return texture;
 }
 
+static void
+_db_main_menu_help(void *user_data __attribute__((__unused__)))
+{
+}
+
+static void
+_db_main_menu_quit(void *user_data __attribute__((__unused__)))
+{
+}
+
+static void
+_db_main_menu_game(void *user_data)
+{
+	struct db_game *game;
+
+	game = user_data;
+
+	db_dbg("Loading game \"%s\"", db_game_get_name(game));
+}
+
 void
 db_main_menu(void)
 {
@@ -81,6 +103,7 @@ db_main_menu(void)
 	struct _db_main_menu_button **buttons;
 	char                         *name_desc;
 	int                           i;
+	struct _db_main_menu_button  *active;
 
 	games_dir = db_get_games_dir();
 	font_path = db_strcat(db_get_fonts_dir(), "/UbuntuTitling-Bold.ttf");
@@ -153,6 +176,8 @@ db_main_menu(void)
 	}
 	buttons[0]->rect.x = 640 - 16 - buttons[0]->rect.w;
 	buttons[0]->rect.y = 16;
+	buttons[0]->action = &_db_main_menu_help;
+	buttons[0]->user_data = NULL;
 
 	/* Render quit button */
 	buttons[1] = malloc(sizeof(**buttons));
@@ -172,6 +197,8 @@ db_main_menu(void)
 	}
 	buttons[1]->rect.x = 640 - 16 - buttons[1]->rect.w;
 	buttons[1]->rect.y = 48;
+	buttons[1]->action = &_db_main_menu_quit;
+	buttons[1]->user_data = NULL;
 
 	/* Render game buttons */
 	buttons[1]->n = buttons[0];  /* Quit button link (may change below) */
@@ -214,6 +241,8 @@ db_main_menu(void)
 		buttons[i + 2]->r = buttons[0];
 		buttons[i + 2]->p = buttons[i + 1];
 		buttons[i + 1]->n = buttons[i + 2];
+		buttons[i + 2]->action = &_db_main_menu_game;
+		buttons[i + 2]->user_data = games[i];
 	}
 	if (n > 0) {
 		buttons[i + 1]->n = buttons[0];
@@ -242,9 +271,20 @@ db_main_menu(void)
 	buttons[1]->r = NULL;
 	buttons[1]->p = buttons[0];
 
+	if (n > 0) {
+		active = buttons[2];
+	} else {
+		active = buttons[1];
+	}
+
 	for (i = 0; i < n + 2; ++i) {
-		SDL_RenderCopy(renderer, buttons[i]->texture_text, NULL,
-				&buttons[i]->rect);
+		if (buttons[i] == active) {
+			SDL_RenderCopy(renderer, buttons[i]->texture_over, NULL,
+					&buttons[i]->rect);
+		} else {
+			SDL_RenderCopy(renderer, buttons[i]->texture_text, NULL,
+					&buttons[i]->rect);
+		}
 	}
 
 	SDL_RenderPresent(renderer);
--
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