Major rewrite: less repetition (#101)

* first step of rewriting: at least it compiles™

* fix tabs/spaces

* fix dabort on load

* fix preview crash

* sorting isnt done outside of loading

* step one of making remake_file useless

* camera/qr code cleanup

* fix dabort when folder is empty, and bring back preview optimization

* fix button for switching modes and show mode when folder is empty

* fix scanning qrs

* no more splash discrimination

* add debug helpers

* fix theme installing
turns out that wasnt such a good idea

* fix battery icon

* mistake

* themeplaza compatibility

* make use of load_data

* don't drink and copy-paste, kids

* fix user-agent

* remove useless

* cleanup includes

* not even used

* add splash buttons

* upgrade buttons drawing

* fix controls while preview is up

* improve positions

include/loading.h

@@ -0,0 +1,60 @@
+/*
+*   This file is part of Anemone3DS
+*   Copyright (C) 2016-2017 Alex Taber ("astronautlevel"), Dawid Eckert ("daedreth")
+*
+*   This program is free software: you can redistribute it and/or modify
+*   it under the terms of the GNU General Public License as published by
+*   the Free Software Foundation, either version 3 of the License, or
+*   (at your option) any later version.
+*
+*   This program is distributed in the hope that it will be useful,
+*   but WITHOUT ANY WARRANTY; without even the implied warranty of
+*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*   GNU General Public License for more details.
+*
+*   You should have received a copy of the GNU General Public License
+*   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+*   Additional Terms 7.b and 7.c of GPLv3 apply to this file:
+*       * Requiring preservation of specified reasonable legal notices or
+*         author attributions in that material or in the Appropriate Legal
+*         Notices displayed by works containing it.
+*       * Prohibiting misrepresentation of the origin of that material,
+*         or requiring that modified versions of such material be marked in
+*         reasonable ways as different from the original version.
+*/
+
+#ifndef LOADING_H
+#define LOADING_H
+
+#include "common.h"
+
+typedef struct {
+    u16 name[0x41];
+    u16 desc[0x81];
+    u16 author[0x41];
+
+    u32 placeholder_color;
+    ssize_t icon_id;
+
+    u16 path[0x106];
+    bool is_zip;
+
+    bool in_shuffle;
+} Entry_s;
+
+typedef struct {
+    Entry_s * entries;
+    int entries_count;
+
+    int scroll;
+    int selected_entry;
+
+    int shuffle_count;
+} Entry_List_s;
+
+Result load_entries(const char * loading_path, Entry_List_s * list);
+bool load_preview(Entry_List_s list, int * preview_offset);
+u32 load_data(char * filename, Entry_s entry, char ** buf);
+
+#endif