Several improvements (#9)

* fix icon filename

* update pp2d to fix preview problem

* several improvements:
- rely on a single header for simple/common headers
- cleaned up main by putting the interface drawing function in its own file
- load previews from .zip themes (may cause some loading times when launching
- only need 1 shuffle image thanks to pp2d's blending abilities

* not needed anymore

* fix preview color and position

* forgot

* add proper icon loading
thanks steveice10 for bannertool which this was pretty much taken from

* only add proper themes to the list

* add slightly more space between the icon and the name

* not monospace, the little movement every blink is annoying

* fix typo

include/common.h

@@ -0,0 +1,47 @@
+/*
+*   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 COMMON_H
+#define COMMON_H
+
+#include <3ds.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define THEMES_PATH "/Themes/"
+
+static const int THEMES_PER_SCREEN = 4;
+
+enum TextureID {
+    TEXTURE_FONT_RESERVED = 0, //used by pp2d for the font
+    TEXTURE_ARROW,
+    TEXTURE_SHUFFLE,
+    MAX_TEXTURE,
+};
+
+#endif

include/draw.h

@@ -0,0 +1,37 @@
+/*
+*   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 DRAW_H
+#define DRAW_H
+
+#include "themes.h"
+
+void init_screens(void);
+void exit_screens(void);
+
+void draw_interface(Theme_s * themes_list, int theme_count, int selected_theme, bool preview_mode);
+
+#endif

include/fs.h

@@ -27,7 +27,7 @@
 #ifndef FS_H
 #define FS_H
 
-#include <3ds.h>
+#include "common.h"
 
 FS_Archive ArchiveSD;
 FS_Archive ArchiveHomeExt;
@@ -35,9 +35,10 @@ FS_Archive ArchiveThemeExt;
 
 Result open_archives(void);
 Result close_archives(void);
-int get_number_entries(char*);
+
 u64 file_to_buf(FS_Path path, FS_Archive archive, char** buf);
 u32 zip_file_to_buf(char *file_name, u16 *zip_path, char **buf);
+
 u32 buf_to_file(u32 size, char *path, FS_Archive archive, char *buf);
 void remake_file(char *path, FS_Archive archive, u32 size);
 

include/themes.h

@@ -27,26 +27,27 @@
 #ifndef THEMES_H
 #define THEMES_H
 
-#include <3ds.h>
-
-#define TEX_COUNT   3
+#include "common.h"
 
 typedef struct {
-    u16 name[0x40];
-    u16 desc[0x80];
-    u16 author[0x40];
-    char icon_data[0x1200];
+    u16 name[0x80];
+    u16 desc[0x100];
+    u16 author[0x80];
+    
+    bool has_icon;
+    ssize_t icon_id;
+    
+    bool has_preview;
+    ssize_t preview_id;
+    
     u16 path[262];
     bool is_zip;
-    bool selected;
-    ssize_t preview_id;
-    bool has_preview;
-    char preview_path[0x106];
-} theme;
+    
+    bool in_shuffle;
+} Theme_s;
 
-void parse_smdh(theme *entry, u16 *path);
-int scan_themes(theme **themes, int num_themes);
-Result single_install(theme);
-Result shuffle_install(theme **themes_list, int num_themes);
+Result get_themes(Theme_s **themes_list, int *theme_count);
+Result single_install(Theme_s theme);
+Result shuffle_install(Theme_s *themes_list, int theme_count);
 
 #endif

include/unicode.h

@@ -27,7 +27,7 @@
 #ifndef UNICODE_H
 #define UNICODE_H
 
-#include <3ds.h>
+#include "common.h"
 
 ssize_t strulen(u16*, ssize_t);
 void struacat(u16 *input, const char *addition);