Patch #4864 by Jonathan Gordon: text editor plugin, with some changes by me.

Also correct a var clash between the rockbox's gui api and doom plugin


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9451 a1c6a512-1295-4272-9138-f99709370657

13 files changed, 549 insertions, 42 deletions

diff --git a/apps/gui/list.c b/apps/gui/list.c
index 8ca3042a4b..d0117d7c03 100644
--- a/apps/gui/list.c
+++ b/apps/gui/list.c
@@ -491,6 +491,14 @@ void gui_synclist_set_nb_items(struct gui_synclist * lists, int nb_items)
 #endif
     }
 }
+int gui_synclist_get_nb_items(struct gui_synclist * lists)
+{
+    return gui_list_get_nb_items(&((lists)->gui_list[0]));
+}
+int  gui_synclist_get_sel_pos(struct gui_synclist * lists)
+{
+    return gui_list_get_sel_pos(&((lists)->gui_list[0]));
+}
 void gui_synclist_set_icon_callback(struct gui_synclist * lists, list_get_icon icon_callback)
 {
     int i;
diff --git a/apps/gui/list.h b/apps/gui/list.h
index e72e00c5d1..48b7a5e0fc 100644
--- a/apps/gui/list.h
+++ b/apps/gui/list.h
@@ -337,14 +337,10 @@ extern void gui_synclist_init(
     );
 extern void gui_synclist_set_nb_items(struct gui_synclist * lists, int nb_items);
 extern void gui_synclist_set_icon_callback(struct gui_synclist * lists, list_get_icon icon_callback);
-#define gui_synclist_get_nb_items(lists) \
-    gui_list_get_nb_items(&((lists)->gui_list[0]))
+extern int gui_synclist_get_nb_items(struct gui_synclist * lists);
 
 extern int  gui_synclist_get_sel_pos(struct gui_synclist * lists);
 
-#define gui_synclist_get_sel_pos(lists) \
-    gui_list_get_sel_pos(&((lists)->gui_list[0]))
-
 extern void gui_synclist_draw(struct gui_synclist * lists);
 extern void gui_synclist_select_item(struct gui_synclist * lists,
                                      int item_number);
diff --git a/apps/plugin.c b/apps/plugin.c
index 6cbda49a48..57bc09530a 100644
--- a/apps/plugin.c
+++ b/apps/plugin.c
@@ -52,6 +52,7 @@
 #include "sound.h"
 #include "database.h"
 #include "splash.h"
+#include "list.h"
 #if (CONFIG_CODEC == SWCODEC)
 #include "pcm_playback.h"
 #include "dsp.h"
@@ -412,6 +413,27 @@ static const struct plugin_api rockbox_api = {
 
     vsnprintf,
     memchr,
+    /* list */
+    gui_synclist_init,
+    gui_synclist_set_nb_items,
+    gui_synclist_set_icon_callback,
+    gui_synclist_get_nb_items,
+    gui_synclist_get_sel_pos,
+    gui_synclist_draw,
+    gui_synclist_select_item,
+    gui_synclist_select_next,
+    gui_synclist_select_previous,
+    gui_synclist_select_next_page,
+    gui_synclist_select_previous_page,
+    gui_synclist_add_item,
+    gui_synclist_del_item,
+    gui_synclist_limit_scroll,
+    gui_synclist_flash,
+#ifdef HAVE_LCD_BITMAP
+    gui_synclist_scroll_right,
+    gui_synclist_scroll_left,
+#endif
+    gui_synclist_do_button,
 };
 
 int plugin_load(const char* plugin, void* parameter)
diff --git a/apps/plugin.h b/apps/plugin.h
index 4061346eba..d39e92de9c 100644
--- a/apps/plugin.h
+++ b/apps/plugin.h
@@ -67,6 +67,7 @@
 #include "sound.h"
 #include "menu.h"
 #include "rbunicode.h"
+#include "list.h"
 
 #ifdef HAVE_REMOTE_LCD
 #include "lcd-remote.h"
@@ -102,7 +103,7 @@
 #define PLUGIN_MAGIC 0x526F634B /* RocK */
 
 /* increase this every time the api struct changes */
-#define PLUGIN_API_VERSION 17
+#define PLUGIN_API_VERSION 18
 
 /* update this to latest version if a change to the api struct breaks
    backwards compatibility (and please take the opportunity to sort in any 
@@ -483,6 +484,32 @@ struct plugin_api {
 
     int (*vsnprintf)(char *buf, int size, const char *fmt, va_list ap);
     void *(*memchr)(const void *s1, int c, size_t n);
+
+    /* list */
+    void (*gui_synclist_init)(struct gui_synclist * lists,
+            list_get_name callback_get_item_name,void * data);
+    void (*gui_synclist_set_nb_items)(struct gui_synclist * lists, int nb_items);
+    void (*gui_synclist_set_icon_callback)(struct gui_synclist * lists, list_get_icon icon_callback);
+    int (*gui_synclist_get_nb_items)(struct gui_synclist * lists);
+    int  (*gui_synclist_get_sel_pos)(struct gui_synclist * lists);
+    void (*gui_synclist_draw)(struct gui_synclist * lists);
+    void (*gui_synclist_select_item)(struct gui_synclist * lists,
+    int item_number);
+    void (*gui_synclist_select_next)(struct gui_synclist * lists);
+    void (*gui_synclist_select_previous)(struct gui_synclist * lists);
+    void (*gui_synclist_select_next_page)(struct gui_synclist * lists,
+    enum screen_type screen);
+    void (*gui_synclist_select_previous_page)(struct gui_synclist * lists,
+    enum screen_type screen);
+    void (*gui_synclist_add_item)(struct gui_synclist * lists);
+    void (*gui_synclist_del_item)(struct gui_synclist * lists);
+    void (*gui_synclist_limit_scroll)(struct gui_synclist * lists, bool scroll);
+    void (*gui_synclist_flash)(struct gui_synclist * lists);
+#ifdef HAVE_LCD_BITMAP
+    void (*gui_synclist_scroll_right)(struct gui_synclist * lists);
+    void (*gui_synclist_scroll_left)(struct gui_synclist * lists);
+#endif
+    unsigned (*gui_synclist_do_button)(struct gui_synclist * lists, unsigned button);
 };
 
 /* plugin header */
diff --git a/apps/plugins/SOURCES b/apps/plugins/SOURCES
index b777791f69..029b622fdf 100644
--- a/apps/plugins/SOURCES
+++ b/apps/plugins/SOURCES
@@ -26,6 +26,7 @@ wavplay.c
 #ifndef IRIVER_IFP7XX_SERIES       /* Temporarily disable plugins for iFP7xx */
 dice.c
 #ifdef HAVE_LCD_BITMAP             /* Not for the Player */
+text_editor.c
 
 #if CONFIG_LCD != LCD_IPOD2BPP     /* Plugins needing the grayscale lib */
 fire.c
diff --git a/apps/plugins/doom/f_wipe.c b/apps/plugins/doom/f_wipe.c
index a6251f295e..f51224f5ce 100644
--- a/apps/plugins/doom/f_wipe.c
+++ b/apps/plugins/doom/f_wipe.c
@@ -140,7 +140,7 @@ static int wipe_doMelt(int width, int height, int ticks)
    return done;
 }
 
-// CPhipps - modified to allocate and deallocate screens[2 to 3] as needed, saving memory
+// CPhipps - modified to allocate and deallocate d_screens[2 to 3] as needed, saving memory
 
 static int wipe_exitMelt(int width, int height, int ticks)
 {
@@ -152,20 +152,20 @@ static int wipe_exitMelt(int width, int height, int ticks)
    free(wipe_scr_end);
    // Paranoia
    y = NULL;
-   wipe_scr_start = wipe_scr_end = screens[SRC_SCR] = screens[DEST_SCR] = NULL;
+   wipe_scr_start = wipe_scr_end = d_screens[SRC_SCR] = d_screens[DEST_SCR] = NULL;
    return 0;
 }
 
 int wipe_StartScreen(int x, int y, int width, int height)
 {
-   wipe_scr_start = screens[SRC_SCR] = malloc(SCREENWIDTH * SCREENHEIGHT);
+   wipe_scr_start = d_screens[SRC_SCR] = malloc(SCREENWIDTH * SCREENHEIGHT);
    V_CopyRect(x, y, 0,       width, height, x, y, SRC_SCR, VPT_NONE ); // Copy start screen to buffer
    return 0;
 }
 
 int wipe_EndScreen(int x, int y, int width, int height)
 {
-   wipe_scr_end = screens[DEST_SCR] = malloc(SCREENWIDTH * SCREENHEIGHT);
+   wipe_scr_end = d_screens[DEST_SCR] = malloc(SCREENWIDTH * SCREENHEIGHT);
    V_CopyRect(x, y, 0,       width, height, x, y, DEST_SCR, VPT_NONE); // Copy end screen to buffer
    V_CopyRect(x, y, SRC_SCR, width, height, x, y, 0       , VPT_NONE); // restore start screen
    return 0;
@@ -180,7 +180,7 @@ int wipe_ScreenWipe(int x, int y, int width, int height, int ticks)
    if (!go)                                         // initial stuff
    {
       go = 1;
-      wipe_scr = screens[0];
+      wipe_scr = d_screens[0];
       wipe_initMelt(width, height, ticks);
    }
    V_MarkRect(0, 0, width, height);                 // do a piece of wipe-in
diff --git a/apps/plugins/doom/i_video.c b/apps/plugins/doom/i_video.c
index 6adb9491a4..ea6389deab 100644
--- a/apps/plugins/doom/i_video.c
+++ b/apps/plugins/doom/i_video.c
@@ -16,7 +16,11 @@
  * GNU General Public License for more details.
  *
  * $Log$
- * Revision 1.4  2006/04/02 20:45:24  kkurbjun
+ * Revision 1.5  2006/04/03 08:51:08  bger
+ * Patch #4864 by Jonathan Gordon: text editor plugin, with some changes by me.
+ * Also correct a var clash between the rockbox's gui api and doom plugin
+ *
+ * Revision 1.4  2006-04-02 20:45:24  kkurbjun
  * Properly ifdef H300 video code, fix commented line handling rockbox volume
  *
  * Revision 1.3  2006-04-02 01:52:44  kkurbjun
@@ -336,7 +340,7 @@ void I_FinishUpdate (void)
    *(volatile unsigned short *) 0xf0000002 = 0;    // value
    *(volatile unsigned short *) 0xf0000000 = 0x22; // GRAM
 
-   unsigned char *screenptr=screens[0];
+   unsigned char *screenptr=d_screens[0];
    int wcnt=0, hcnt=0;
 
    while(hcnt<LCD_HEIGHT)
@@ -358,7 +362,7 @@ void I_FinishUpdate (void)
    {
       for (x = 0; x < LCD_WIDTH; x++)
       {
-         paletteIndex = screens[0][y*SCREENWIDTH + x];
+         paletteIndex = d_screens[0][y*SCREENWIDTH + x];
          rb->lcd_framebuffer[y * LCD_WIDTH + x] = palette[paletteIndex];
       }
    }
@@ -371,7 +375,7 @@ void I_FinishUpdate (void)
 //
 void I_ReadScreen (byte* scr)
 {
-   memcpy (scr, screens[0], SCREENWIDTH*SCREENHEIGHT);
+   memcpy (scr, d_screens[0], SCREENWIDTH*SCREENHEIGHT);
 }
 
 //
@@ -399,9 +403,9 @@ void I_InitGraphics(void)
 
 #if defined(CPU_COLDFIRE) && !defined(SIMULATOR)
    coldfire_set_macsr(EMAC_FRACTIONAL | EMAC_SATURATE);
-   screens[0] = fastscreen;
+   d_screens[0] = fastscreen;
 #else
    // Don't know if this will fit in other IRAMs
-   screens[0] = malloc (SCREENWIDTH * SCREENHEIGHT * sizeof(unsigned char));
+   d_screens[0] = malloc (SCREENWIDTH * SCREENHEIGHT * sizeof(unsigned char));
 #endif
 }
diff --git a/apps/plugins/doom/r_draw.c b/apps/plugins/doom/r_draw.c
index b6d84f0dff..a6bc21e420 100644
--- a/apps/plugins/doom/r_draw.c
+++ b/apps/plugins/doom/r_draw.c
@@ -573,7 +573,7 @@ void R_InitBuffer(int width, int height)
 
    viewwindowy = width==SCREENWIDTH ? 0 : (SCREENHEIGHT-(ST_SCALED_HEIGHT-1)-height)>>1;
 
-   topleft = screens[0] + viewwindowy*SCREENWIDTH + viewwindowx;
+   topleft = d_screens[0] + viewwindowy*SCREENWIDTH + viewwindowx;
 
    // Preclaculate all row offsets.
    // CPhipps - merge viewwindowx into here
@@ -627,7 +627,7 @@ void R_FillBackScreen (void)
 
 void R_VideoErase(unsigned ofs, int count)
 {
-   memcpy(screens[0]+ofs, screens[1]+ofs, count);   // LFB copy.
+   memcpy(d_screens[0]+ofs, d_screens[1]+ofs, count);   // LFB copy.
 }
 
 //
diff --git a/apps/plugins/doom/st_stuff.c b/apps/plugins/doom/st_stuff.c
index 5d9244d951..feae89a802 100644
--- a/apps/plugins/doom/st_stuff.c
+++ b/apps/plugins/doom/st_stuff.c
@@ -1148,6 +1148,6 @@ void ST_Init(void)
    veryfirsttime = 0;
    ST_loadData();
    // proff 08/18/98: Changed for high-res
-   screens[4] = Z_Malloc(SCREENWIDTH*(ST_SCALED_HEIGHT+1), PU_STATIC, 0);
-   //  screens[4] = Z_Malloc(ST_WIDTH*ST_HEIGHT, PU_STATIC, 0);
+   d_screens[4] = Z_Malloc(SCREENWIDTH*(ST_SCALED_HEIGHT+1), PU_STATIC, 0);
+   //  d_screens[4] = Z_Malloc(ST_WIDTH*ST_HEIGHT, PU_STATIC, 0);
 }
diff --git a/apps/plugins/doom/v_video.c b/apps/plugins/doom/v_video.c
index 75ccc3ffda..ca90c4b293 100644
--- a/apps/plugins/doom/v_video.c
+++ b/apps/plugins/doom/v_video.c
@@ -44,7 +44,7 @@
 #include "m_swap.h"
 #include "rockmacros.h"
 // Each screen is [SCREENWIDTH*SCREENHEIGHT];
-byte *screens[6] IBSS_ATTR;
+byte *d_screens[6] IBSS_ATTR;
 int  dirtybox[4];
 
 /* jff 4/24/98 initialize this at runtime */
@@ -239,8 +239,8 @@ void V_CopyRect(int srcx, int srcy, int srcscrn, int width,
 
    V_MarkRect (destx, desty, width, height);
 
-   src = screens[srcscrn]+SCREENWIDTH*srcy+srcx;
-   dest = screens[destscrn]+SCREENWIDTH*desty+destx;
+   src = d_screens[srcscrn]+SCREENWIDTH*srcy+srcx;
+   dest = d_screens[destscrn]+SCREENWIDTH*desty+destx;
 
    for ( ; height>0 ; height--)
    {
@@ -294,7 +294,7 @@ void V_DrawBlock(int x, int y, int scrn, int width, int height,
       if (!scrn)
          V_MarkRect (x, y, width, height);
 
-      dest = screens[scrn] + y*SCREENWIDTH+x;
+      dest = d_screens[scrn] + y*SCREENWIDTH+x;
       // x & y no longer needed
 
       while (height--) {
@@ -308,7 +308,7 @@ void V_DrawBlock(int x, int y, int scrn, int width, int height,
    } else {
       V_MarkRect (x, y, width, height);
 
-      dest = screens[scrn] + y*SCREENWIDTH+x;
+      dest = d_screens[scrn] + y*SCREENWIDTH+x;
 
       while (height--) {
          memcpy (dest, src, width);
@@ -369,7 +369,7 @@ void V_GetBlock(int x, int y, int scrn, int width, int height, byte *dest)
       I_Error ("V_GetBlock: Bad arguments");
 #endif
 
-   src = screens[scrn] + y*SCREENWIDTH+x;
+   src = d_screens[scrn] + y*SCREENWIDTH+x;
 
    while (height--)
    {
@@ -394,13 +394,13 @@ void V_Init (void)
 #define PREALLOCED_SCREENS 2
 
    // CPhipps - no point in "stick these in low dos memory on PCs" anymore
-   // Allocate the screens individually, so I_InitGraphics can release screens[0]
+   // Allocate the screens individually, so I_InitGraphics can release d_screens[0]
    //  if e.g. it wants a MitSHM buffer instead
 
    for (i=0 ; i<PREALLOCED_SCREENS ; i++)
-      screens[i] = calloc(SCREENWIDTH*SCREENHEIGHT, 1);
+      d_screens[i] = calloc(SCREENWIDTH*SCREENHEIGHT, 1);
    for (; i<4; i++) // Clear the rest (paranoia)
-      screens[i] = NULL;
+      d_screens[i] = NULL;
 }
 
 //
@@ -448,7 +448,7 @@ void V_DrawMemPatch(int x, int y, int scrn, const patch_t *patch,
    if (!(flags & VPT_STRETCH)) {
       unsigned int             col;
       const column_t *column;
-      byte           *desttop = screens[scrn]+y*SCREENWIDTH+x;
+      byte           *desttop = d_screens[scrn]+y*SCREENWIDTH+x;
       unsigned int    w = SHORT(patch->width);
 
       if (!scrn)
@@ -544,7 +544,7 @@ void V_DrawMemPatch(int x, int y, int scrn, const patch_t *patch,
          V_MarkRect ( stretchx, stretchy, (SHORT( patch->width ) * DX ) >> 16,
                       (SHORT( patch->height) * DY ) >> 16 );
 
-      desttop = screens[scrn] + stretchy * SCREENWIDTH +  stretchx;
+      desttop = d_screens[scrn] + stretchy * SCREENWIDTH +  stretchx;
 
       for ( col = 0; col <= w; x++, col+=DXI, desttop++ ) {
          const column_t *column;
@@ -640,11 +640,11 @@ byte *V_PatchToBlock(const char* name, int cm,
                      enum patch_translation_e flags,
                      unsigned short* width, unsigned short* height)
 {
-   byte          *oldscr = screens[1];
+   byte          *oldscr = d_screens[1];
    byte          *block;
    const patch_t *patch;
 
-   screens[1] = calloc(SCREENWIDTH*SCREENHEIGHT, 1);
+   d_screens[1] = calloc(SCREENWIDTH*SCREENHEIGHT, 1);
 
    patch = W_CacheLumpName(name);
    V_DrawMemPatch(SHORT(patch->leftoffset), SHORT(patch->topoffset),
@@ -662,8 +662,8 @@ byte *V_PatchToBlock(const char* name, int cm,
    V_GetBlock(0, 0, 1, *width, *height,
               block = malloc((long)(*width) * (*height)));
 
-   free(screens[1]);
-   screens[1] = oldscr;
+   free(d_screens[1]);
+   d_screens[1] = oldscr;
    return block;
 }
 #endif /* GL_DOOM */
@@ -691,7 +691,7 @@ void V_SetPalette(int pal)
 #ifndef GL_DOOM
 void V_FillRect(int scrn, int x, int y, int width, int height, byte colour)
 {
-   byte* dest = screens[scrn] + x + y*SCREENWIDTH;
+   byte* dest = d_screens[scrn] + x + y*SCREENWIDTH;
    while (height--) {
       memset(dest, colour, width);
       dest += SCREENWIDTH;
diff --git a/apps/plugins/doom/v_video.h b/apps/plugins/doom/v_video.h
index c9926e8997..c4b8927109 100644
--- a/apps/plugins/doom/v_video.h
+++ b/apps/plugins/doom/v_video.h
@@ -72,7 +72,7 @@ typedef enum
 
 #define CR_DEFAULT CR_RED   /* default value for out of range colors */
 
-extern byte      *screens[6];
+extern byte      *d_screens[6];
 extern int        dirtybox[4];
 extern const byte gammatable[5][256];
 extern int        usegamma;
@@ -173,11 +173,11 @@ void V_SetPalette(int pal);
 // CPhipps - function to plot a pixel
 
 #ifndef GL_DOOM
-#define V_PlotPixel(s,x,y,c) screens[s][x+SCREENWIDTH*y]=c
+#define V_PlotPixel(s,x,y,c) d_screens[s][x+SCREENWIDTH*y]=c
 #endif
 
-#define V_AllocScreen(scrn) screens[scrn] = malloc(SCREENWIDTH*SCREENHEIGHT)
-#define V_FreeScreen(scrn) free(screens[scrn]); screens[scrn] = NULL
+#define V_AllocScreen(scrn) d_screens[scrn] = malloc(SCREENWIDTH*SCREENHEIGHT)
+#define V_FreeScreen(scrn) free(d_screens[scrn]); d_screens[scrn] = NULL
 
 #ifdef GL_DOOM
 #include "gl_struct.h"
diff --git a/apps/plugins/text_editor.c b/apps/plugins/text_editor.c
new file mode 100644
index 0000000000..6767940938
--- /dev/null
+++ b/apps/plugins/text_editor.c
@@ -0,0 +1,447 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 Jonathan Gordon
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "plugin.h"
+/* button definitions, every keypad must only have select,menu and cancel */
+#if CONFIG_KEYPAD == RECORDER_PAD
+#define TEXT_EDITOR_SELECT BUTTON_PLAY
+#define TEXT_EDITOR_CANCEL BUTTON_OFF
+#define TEXT_EDITOR_ITEM_MENU BUTTON_F1
+
+#elif CONFIG_KEYPAD == ONDIO_PAD
+#define TEXT_EDITOR_SELECT_PRE BUTTON_MENU
+#define TEXT_EDITOR_SELECT (BUTTON_MENU|BUTTON_REL)
+#define TEXT_EDITOR_CANCEL BUTTON_OFF
+#define TEXT_EDITOR_ITEM_MENU BUTTON_MENU|BUTTON_REPEAT
+
+#elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || (CONFIG_KEYPAD == IRIVER_H300_PAD)
+#define TEXT_EDITOR_SELECT BUTTON_SELECT
+#define TEXT_EDITOR_CANCEL BUTTON_OFF
+#define TEXT_EDITOR_DELETE BUTTON_REC
+#define TEXT_EDITOR_ITEM_MENU BUTTON_MODE
+
+#elif (CONFIG_KEYPAD == IPOD_3G_PAD) || (CONFIG_KEYPAD == IPOD_4G_PAD)
+#define TEXT_EDITOR_SELECT_PRE    BUTTON_SELECT
+#define TEXT_EDITOR_SELECT ( BUTTON_SELECT | BUTTON_REL)
+#define TEXT_EDITOR_CANCEL_PRE    BUTTON_SELECT
+#define TEXT_EDITOR_CANCEL (BUTTON_SELECT | BUTTON_MENU)
+#define TEXT_EDITOR_DELETE (BUTTON_LEFT)
+#define TEXT_EDITOR_ITEM_MENU (BUTTON_MENU)
+
+#elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
+
+#elif CONFIG_KEYPAD == IAUDIO_X5_PAD
+#define TEXT_EDITOR_SELECT BUTTON_SELECT
+#define TEXT_EDITOR_CANCEL BUTTON_POWER
+#define TEXT_EDITOR_ITEM_MENU BUTTON_PLAY
+
+#elif CONFIG_KEYPAD == GIGABEAT_PAD
+
+#else
+    #error TEXT_EDITOR: Unsupported keypad
+#endif
+
+#define MAX_LINE_LEN 128
+
+#if PLUGIN_BUFFER_SIZE > 0x45000
+#define MAX_LINES    2048
+#else
+#define MAX_LINES   128
+#endif
+
+PLUGIN_HEADER
+static struct plugin_api* rb;
+
+struct LineStruct {
+    char line[MAX_LINE_LEN];
+    int prev; /* index to prev item, or -1 */
+    int next; /* index to next item, or -1 */
+};
+
+struct LineStruct lines[MAX_LINES];
+int line_count = 0;
+int first = -1, last = -1;
+int indicies[MAX_LINES];
+/**************************** stuff for the linked lists  ***************/
+int build_indicies(void)
+{
+    int i=0, index = first;
+    struct LineStruct *line;
+    if (first==-1)
+        return 0;
+    while (i<line_count)
+    {
+        indicies[i++] = index;
+        DEBUGF("%d,",index);
+        line = &lines[index];
+        index = line->next;
+
+    }
+    DEBUGF("\n");
+    return 1;
+}
+
+int find_first_free(int start)
+{
+    int i;
+    if ((start <0) || (start >=MAX_LINES))
+        start = 0;
+    i = start;
+    do
+    {
+        if (lines[i].line[0] == '\0')
+            return i;
+        i = (i+1)%MAX_LINES;
+    } while (i!=start);
+    return -1;
+}
+
+int add_line(char *line, int idx_after_me)
+{
+    struct LineStruct *temp;
+    int next;
+    int this_idx = find_first_free(idx_after_me);
+    if ((line_count >= MAX_LINES) || (this_idx == -1))
+        return -1;
+    DEBUGF("line:%s ,idx_after_me=%d\n",line,idx_after_me);
+    if (idx_after_me == -1) /* add as the first item */
+    {
+        rb->strcpy(lines[this_idx].line,line);
+        lines[this_idx].prev = -1;
+        if (first != -1)
+            lines[first].prev = this_idx;
+        lines[this_idx].next = first;
+        first = this_idx;
+        if (last == idx_after_me)
+            last = this_idx;
+        line_count++;
+        return 1;
+    }
+
+    temp = &lines[idx_after_me];
+    next = lines[idx_after_me].next;
+    temp->next = this_idx;
+    rb->strcpy(lines[this_idx].line,line);
+    temp = &lines[this_idx];
+    temp->next = next;
+    temp->prev = idx_after_me;
+    if (last == idx_after_me)
+        last = this_idx;
+    if (first == -1)
+        first = this_idx;
+    line_count ++;
+    return this_idx;
+}
+
+void del_line(int line)
+{
+    int idx_prev, idx_next;
+    idx_prev = (&lines[line])->prev;
+    idx_next = (&lines[line])->next;
+    lines[line].line[0] = '\0';
+    lines[idx_prev].next = idx_next;
+    lines[idx_next].prev = idx_prev;
+    line_count --;
+}
+char *list_get_name_cb(int selected_item,void* data,char* buf)
+{
+    (void)data;
+    rb->strcpy(buf,lines[indicies[selected_item]].line);
+    return buf;
+}
+char filename[1024];
+void save_changes(int overwrite)
+{
+    int fd;
+    int i;
+
+    if (!filename[0] || overwrite)
+    {
+        rb->strcpy(filename,"/");
+        rb->kbd_input(filename,1024);
+    }
+
+    fd = rb->open(filename,O_WRONLY|O_CREAT);
+    if (!fd)
+    {
+        rb->splash(HZ*2,1,"Changes NOT saved");
+        return;
+    }
+
+    rb->lcd_clear_display();
+    build_indicies();
+    for (i=0;i<line_count;i++)
+    {
+        rb->fdprintf(fd,"%s\n",lines[indicies[i]].line);
+    }
+
+    rb->close(fd);
+}
+
+void setup_lists(struct gui_synclist *lists)
+{
+    build_indicies();
+    rb->gui_synclist_init(lists,list_get_name_cb,0);
+    rb->gui_synclist_set_icon_callback(lists,NULL);
+    rb->gui_synclist_set_nb_items(lists,line_count);
+    rb->gui_synclist_limit_scroll(lists,true);
+    rb->gui_synclist_select_item(lists, 0);
+    rb->gui_synclist_draw(lists);
+}
+enum {
+    MENU_RET_SAVE = -1,
+    MENU_RET_NO_UPDATE,
+    MENU_RET_UPDATE,
+};
+int do_item_menu(int cur_sel, char* copy_buffer)
+{
+    int m, ret = 0;
+    static const struct menu_item items[] = {
+            { "Cut", NULL },
+            { "Copy", NULL },
+            { "", NULL },
+            { "Insert Above", NULL },
+            { "Insert Below", NULL },
+            { "", NULL },
+            { "Cat To Above",NULL },
+            /*       { "Split Line",NULL }, */
+            { "", NULL },
+            { "Save", NULL },
+    };
+    m = rb->menu_init(items, sizeof(items) / sizeof(*items),
+    NULL, NULL, NULL, NULL);
+
+    switch (rb->menu_show(m))
+    {
+        case 0: /* cut */
+            rb->strcpy(copy_buffer,lines[indicies[cur_sel]].line);
+            del_line(indicies[cur_sel]);
+            ret = MENU_RET_UPDATE;
+        break;
+        case 1: /* copy */
+            rb->strcpy(copy_buffer,lines[indicies[cur_sel]].line);
+            ret = MENU_RET_NO_UPDATE;
+        break;
+        case 2: /* blank */
+            ret = MENU_RET_NO_UPDATE;
+        break;
+
+        case 3: /* insert above */
+            if (!rb->kbd_input(copy_buffer,MAX_LINE_LEN))
+            {
+                add_line(copy_buffer,lines[indicies[cur_sel]].prev);
+                copy_buffer[0]='\0';
+                ret = MENU_RET_UPDATE;
+            }
+        break;
+        case 4: /* insert below */
+            if (!rb->kbd_input(copy_buffer,MAX_LINE_LEN))
+            {
+                add_line(copy_buffer,indicies[cur_sel]);
+                copy_buffer[0]='\0';
+                ret = MENU_RET_UPDATE;
+            }
+        break;
+        case 5: /* blank */
+            ret = MENU_RET_NO_UPDATE;
+        break;
+        case 6: /* cat to above */
+            if (cur_sel>0)
+            {
+                rb->strcat(lines[indicies[cur_sel-1]].line,lines[indicies[cur_sel]].line);
+                del_line(indicies[cur_sel]);
+                ret = MENU_RET_UPDATE;
+            }
+        break;
+        /*   case 7: // split line */
+
+        case 7: /* save */
+            ret = MENU_RET_SAVE;
+        break;
+        default:
+            ret = MENU_RET_NO_UPDATE;
+        break;
+    }
+    rb->menu_exit(m);
+    return ret;
+}
+/* this is the plugin entry point */
+enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
+{
+    int fd;
+    char temp_line[MAX_LINE_LEN];
+
+    struct gui_synclist lists;
+    bool exit = false;
+    int button, last_button = BUTTON_NONE;
+    bool changed = false;
+    int cur_sel;
+    char copy_buffer[MAX_LINE_LEN]; copy_buffer[0]='\0';
+
+    rb = api;
+    if (parameter)
+    {
+        rb->strcpy(filename,(char*)parameter);
+        fd = rb->open(filename,O_RDONLY);
+        if (fd<0)
+        {
+            rb->splash(HZ*2,true,"Couldnt open file: %s",(char*)parameter);
+            return PLUGIN_ERROR;
+        }
+        /* read in the file */
+        while (rb->read_line(fd,temp_line,MAX_LINE_LEN))
+        {
+            if (add_line(temp_line,last) < 0)
+            {
+                rb->splash(HZ*2,true,"Error reading file: %s",(char*)parameter);
+                rb->close(fd);
+                return PLUGIN_ERROR;
+            }
+        }
+        rb->close(fd);
+    }
+    else filename[0] = '\0';
+    /* now dump it in the list */
+    setup_lists(&lists);
+    while (!exit)
+    {
+        rb->gui_synclist_draw(&lists);
+        cur_sel = rb->gui_synclist_get_sel_pos(&lists);
+        button = rb->button_get(true);
+        if (rb->gui_synclist_do_button(&lists,button))
+            continue;
+        switch (button)
+        {
+            case TEXT_EDITOR_SELECT:
+            {
+#ifdef TEXT_EDITOR_SELECT_PRE
+                if (last_button != TEXT_EDITOR_SELECT_PRE)
+                    break;
+#endif
+                char buf[MAX_LINE_LEN];buf[0]='\0';
+
+                if (line_count)
+                    rb->strcpy(buf,lines[indicies[cur_sel]].line);
+                if (!rb->kbd_input(buf,MAX_LINE_LEN))
+                {
+                    if (line_count)
+                        rb->strcpy(lines[indicies[cur_sel]].line,buf);
+                    else { add_line(buf, first); setup_lists(&lists); }
+                    changed = true;
+                }
+            }
+            break;
+#ifdef TEXT_EDITOR_DELETE
+            case TEXT_EDITOR_DELETE:
+#ifdef TEXT_EDITOR_DELETE_PRE
+                if (last_button != TEXT_EDITOR_DELETE_PRE)
+                    break;
+#endif
+                if (!line_count) break;
+                rb->strcpy(copy_buffer,lines[indicies[cur_sel]].line);
+                del_line(indicies[cur_sel]);
+                changed = true;
+                setup_lists(&lists);
+            break;
+#endif
+#ifdef TEXT_EDITOR_ITEM_MENU
+            case TEXT_EDITOR_ITEM_MENU:
+#ifdef TEXT_EDITOR_RC_ITEM_MENU
+            case TEXT_EDITOR_RC_ITEM_MENU:
+#endif
+#ifdef TEXT_EDITOR_ITEM_MENU_PRE
+                if (lastbutton != TEXT_EDITOR_ITEM_MENU_PRE
+#ifdef TEXT_EDITOR_RC_ITEM_MENU_PRE
+                    && lastbutton != TEXT_EDITOR_RC_ITEM_MENU_PRE
+#endif
+                    )
+                    break;
+#endif
+            { /* do the item menu */
+                switch (do_item_menu(cur_sel, copy_buffer))
+                {
+                    case MENU_RET_SAVE:
+                        save_changes(1);
+                        changed = false;
+                    break;
+                    case MENU_RET_UPDATE:
+                        changed = true;
+                        setup_lists(&lists);
+                    break;
+                    case MENU_RET_NO_UPDATE:
+                    break;
+                }
+            }
+            break;
+#endif /* TEXT_EDITOR_ITEM_MENU */
+            case TEXT_EDITOR_CANCEL:
+#ifdef TEXT_EDITOR_CANCEL_PRE
+                if (last_button != TEXT_EDITOR_CANCEL_PRE)
+                    break;
+#endif
+                if (changed)
+                {
+                    int m;
+                    int result;
+
+                    static const struct menu_item items[] = {
+                            { "Return", NULL },
+                            { " ", NULL },
+                            { "Save Changes", NULL },
+                            { "Save As...", NULL },
+                            { " ", NULL },
+                            { "Save and Exit", NULL },
+                            { "Ignore Changes and Exit", NULL },
+                    };
+
+                    m = rb->menu_init(items, sizeof(items) / sizeof(*items),
+                    NULL, NULL, NULL, NULL);
+
+                    result=rb->menu_show(m);
+
+                    switch (result)
+                    {
+                        case 0:
+                        break;
+                        case 2: //save to disk
+                            save_changes(1);
+                            changed = 0;
+                        break;
+                        case 3:
+                            save_changes(0);
+                            changed = 0;
+                        break;
+
+                        case 5:
+                            save_changes(1);
+                            exit=1;
+                        break;
+                        case 6:
+                            exit=1;
+                        break;
+                    }
+                    rb->menu_exit(m);
+                }
+                else exit=1;
+            break;
+        }
+        last_button = button;
+    }
+
+    return PLUGIN_OK;
+}
diff --git a/apps/plugins/viewers.config b/apps/plugins/viewers.config
index a4dcc3695b..6de2bd883a 100644
--- a/apps/plugins/viewers.config
+++ b/apps/plugins/viewers.config
@@ -1,6 +1,7 @@
 ch8,viewers/chip8,70 70 7f 7f 70 70
 txt,viewers/viewer,55 55 55 55 55 55
 nfo,viewers/viewer,55 55 55 55 55 55
+txt,rocks/text_editor, 55 55 55 55 55 55
 jpg,viewers/jpeg,18 24 3C 3C 24 18
 ucl,viewers/rockbox_flash,2A 7F 41 41 7F 2A
 rvf,viewers/video,5D 7F 5D 7F 5D 7F
@@ -15,4 +16,5 @@ rsp,viewers/searchengine, 0e 11 11 31 7e 60
 ss,rocks/sudoku, 55 55 55 55 55 55
 wav,viewers/wav2wv, 00 00 00 00 00 00
 wav,viewers/mp3_encoder, 00 00 00 00 00 00
-wav,viewers/wavplay,60 7F 05 35 3F 00
\ No newline at end of file
+wav,viewers/wavplay,60 7F 05 35 3F 00
+