General instructions-drawing function (#111)

1 info line above, 4 rows, 2 columns.

include/draw.h

@@ -50,12 +50,13 @@ typedef enum {
 
 #define BUTTONS_START_Y 130
 #define BUTTONS_STEP 22
+#define BUTTONS_INFO_LINES 4
+#define BUTTONS_INFO_COLUNMNS 2
 
 enum {
+    BUTTONS_Y_INFO = BUTTONS_START_Y+5,
+
     BUTTONS_Y_LINE_1 = BUTTONS_START_Y + BUTTONS_STEP*1,
-
-    BUTTONS_Y_INFO = BUTTONS_Y_LINE_1+5,
-
     BUTTONS_Y_LINE_2 = BUTTONS_START_Y + BUTTONS_STEP*2,
     BUTTONS_Y_LINE_3 = BUTTONS_START_Y + BUTTONS_STEP*3,
     BUTTONS_Y_LINE_4 = BUTTONS_START_Y + BUTTONS_STEP*4,
@@ -64,6 +65,11 @@ enum {
     BUTTONS_X_RIGHT = 200,
 } ButtonPos;
 
+typedef struct {
+    const wchar_t * info_line;
+    const wchar_t * instructions[BUTTONS_INFO_LINES][BUTTONS_INFO_COLUNMNS];
+} Instructions_s;
+
 void init_screens(void);
 void exit_screens(void);
 
@@ -74,6 +80,7 @@ void draw_preview(int preview_offset);
 
 void draw_install(InstallType type);
 
-void draw_interface(Entry_List_s* list, EntryMode current_mode, bool install_mode);
+void draw_instructions(Instructions_s instructions);
+void draw_interface(Entry_List_s* list, EntryMode current_mode);
 
 #endif

include/instructions.h

@@ -0,0 +1,99 @@
+/*
+*   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 INSTRUCTIONS_H
+#define INSTRUCTIONS_H
+
+#include "draw.h"
+
+Instructions_s normal_instructions[MODE_AMOUNT] = {
+    {
+        .info_line = NULL,
+        .instructions = {
+            {
+                L"\uE000 Hold to install",
+                L"\uE001 Queue shuffle theme"
+            },
+            {
+                NULL,
+                L"\uE003 Preview theme"
+            },
+            {
+                L"\uE004 Switch to splashes",
+                L"\uE005 Scan QR code"
+            },
+            {
+                L"Exit",
+                L"Delete from SD"
+            }
+        }
+    },
+    {
+        .info_line = NULL,
+        .instructions = {
+            {
+                L"\uE000 Install splash",
+                L"\uE001 Delete installed splash"
+            },
+            {
+                NULL,
+                L"\uE003 Preview splash"
+            },
+            {
+                L"\uE004 Switch to themes",
+                L"\uE005 Scan QR code"
+            },
+            {
+                L"Exit",
+                L"Delete from SD"
+            }
+        }
+    }
+};
+
+Instructions_s install_instructions = {
+    .info_line = L"Release \uE000 to cancel or hold \uE006 and release \uE000 to install",
+    .instructions = {
+        {
+            L"\uE079 Normal install",
+            L"\uE07A Shuffle install"
+        },
+        {
+            L"\uE07B BGM-only install",
+            L"\uE07C No-BGM install"
+        },
+        {
+            NULL,
+            NULL
+        },
+        {
+            L"Exit",
+            NULL
+        }
+    }
+};
+
+#endif