From 48ddc6ea60368e8a2d7c018a658607dd1d0fcedb Mon Sep 17 00:00:00 2001
From: suchmememanyskill <suchmememanyskill@users.noreply.github.com>
Date: Tue, 29 Dec 2020 17:12:58 +0100
Subject: [PATCH] add old bad hexview

---
 source/fs/menus/filemenu.c | 52 +++++++++++++++++++++++++++++++++++++-
 source/gfx/gfx.c           | 14 +++++-----
 source/hid/hid.h           |  1 +
 3 files changed, 60 insertions(+), 7 deletions(-)

diff --git a/source/fs/menus/filemenu.c b/source/fs/menus/filemenu.c
index e0d6b3d..74b6f77 100644
--- a/source/fs/menus/filemenu.c
+++ b/source/fs/menus/filemenu.c
@@ -109,12 +109,62 @@ void RenameFile(char *path, FSEntry_t entry){
     free(renameTo);
 }
 
+// This is from the original TE and it's bad but uhh i'm too lazy to fix it
+void HexView(char *path, FSEntry_t entry){
+    char *filePath = CombinePaths(path, entry.name);
+
+    FIL in;
+    u8 *print;
+    u32 size;
+    QWORD offset = 0;
+    int res;
+    Input_t *input = hidRead();
+
+    while (input->buttons & (BtnPow | JoyB))
+        hidRead();
+
+    gfx_clearscreen();
+    print = malloc(2048);
+
+    if ((res = f_open(&in, filePath, FA_READ | FA_OPEN_EXISTING))){
+        DrawError(newErrCode(res));
+        return;
+    }
+
+    while (1){
+        f_lseek(&in, offset * 32);
+
+        if ((res = f_read(&in, print, 2048, &size))){
+            DrawError(newErrCode(res));
+            return;
+        }
+
+        gfx_con_setpos(0, 31);
+        gfx_hexdump(offset * 32, print, size);
+
+        input = hidRead();
+
+        if (!(input->buttons))
+            input = hidWait();
+
+        if (input->down && 2048 == size)
+            offset += 2;
+        if (input->up && offset > 0)
+            offset -= 2;
+        if (input->buttons & (BtnPow | JoyB))
+            break;
+    }
+    f_close(&in);
+    free(print);
+    free(filePath);
+}
+
 fileMenuPath FileMenuPaths[] = {
     CopyClipboard,
     MoveClipboard,
     RenameFile,
     DeleteFile,
-    UnimplementedException,
+    HexView,
     LaunchPayload,
     RunScript
 };
diff --git a/source/gfx/gfx.c b/source/gfx/gfx.c
index ad05859..d7a1ef7 100644
--- a/source/gfx/gfx.c
+++ b/source/gfx/gfx.c
@@ -492,6 +492,8 @@ void gfx_putc_small(char c){
 	gfx_con.fntsz = 16;
 }
 
+#define hexDumpLen 0x20
+
 void gfx_hexdump(u32 base, const u8 *buf, u32 len)
 {
 	if (gfx_con.mute)
@@ -501,14 +503,14 @@ void gfx_hexdump(u32 base, const u8 *buf, u32 len)
 	gfx_con.fntsz = 8;
 	for(u32 i = 0; i < len; i++)
 	{
-		if(i % 0x10 == 0)
+		if(i % hexDumpLen == 0)
 		{
 			if(i != 0)
 			{
 				gfx_puts("| ");
-				for(u32 j = 0; j < 0x10; j++)
+				for(u32 j = 0; j < hexDumpLen; j++)
 				{
-					u8 c = buf[i - 0x10 + j];
+					u8 c = buf[i - hexDumpLen + j];
 					if(c >= 32 && c <= 126)
 						gfx_putc(c);
 					else
@@ -521,12 +523,12 @@ void gfx_hexdump(u32 base, const u8 *buf, u32 len)
 		gfx_printf("%02x ", buf[i]);
 		if (i == len - 1)
 		{
-			int ln = len % 0x10 != 0;
-			u32 k = 0x10 - 1;
+			int ln = len % hexDumpLen != 0;
+			u32 k = hexDumpLen - 1;
 			if (ln)
 			{
 				k = (len & 0xF) - 1;
-				for (u32 j = 0; j < 0x10 - k; j++)
+				for (u32 j = 0; j < hexDumpLen - k; j++)
 					gfx_puts("   ");
 			}
 			gfx_puts("| ");
diff --git a/source/hid/hid.h b/source/hid/hid.h
index 285c3d7..c4d441d 100644
--- a/source/hid/hid.h
+++ b/source/hid/hid.h
@@ -14,6 +14,7 @@
 #define JoyLRight BIT(18)
 #define JoyLLeft BIT(19)
 #define JoyLB BIT(22)
+#define BtnPow BIT(24)
 #define BtnVolP BIT(25)
 #define BtnVolM BIT(26)
 #define JoyRDown BIT(27)