edi/elm_code/src/lib/widget/elm_code_widget.c

#ifdef HAVE_CONFIG
# include "config.h"
#endif

#include "Elm_Code.h"
#include "elm_code_private.h"
#include "elm_code_widget_private.h"

#define MY_CLASS ELM_CODE_WIDGET_CLASS

typedef enum {
   ELM_CODE_WIDGET_COLOR_GUTTER_BG = ELM_CODE_TOKEN_TYPE_COUNT,
   ELM_CODE_WIDGET_COLOR_GUTTER_FG,
   ELM_CODE_WIDGET_COLOR_WHITESPACE,
   ELM_CODE_WIDGET_COLOR_CURSOR,
   ELM_CODE_WIDGET_COLOR_SELECTION,

   ELM_CODE_WIDGET_COLOR_COUNT
} Elm_Code_Widget_Colors;

Eina_Unicode status_icons[] = {
 ' ',
 ' ',
 ' ',
 ' ',
 '!',
 '!',
 '!',

 '+',
 '-',
 ' ',

 0x2713,
 0x2717,

 0x2691,

 0
};

#define EO_CONSTRUCTOR_CHECK_RETURN(obj) do { \
   Eina_Bool finalized; \
   \
   finalized = eo_finalized_get(obj); \
   if (finalized) \
     { \
        ERR("This function is only allowed during construction."); \
        return; \
     } \
} while (0)

static void _elm_code_widget_resize(Elm_Code_Widget *widget, Elm_Code_Line *newline);

EAPI Evas_Object *
elm_code_widget_add(Evas_Object *parent, Elm_Code *code)
{
   EINA_SAFETY_ON_NULL_RETURN_VAL(parent, NULL);
   Evas_Object *obj = NULL;
   obj = eo_add(MY_CLASS, parent, elm_obj_code_widget_code_set(eo_self, code));
   return obj;
}

EOLIAN static Eo *
_elm_code_widget_eo_base_constructor(Eo *obj, Elm_Code_Widget_Data *pd)
{
   obj = eo_constructor(eo_super(obj, ELM_CODE_WIDGET_CLASS));

   pd->cursor_line = 1;
   pd->cursor_col = 1;

   pd->tabstop = 8;

   return obj;
}

EOLIAN static Eo *
_elm_code_widget_eo_base_finalize(Eo *obj, Elm_Code_Widget_Data *pd)
{
   obj = eo_finalize(eo_super(obj, ELM_CODE_WIDGET_CLASS));

   if (pd->code)
     return obj;

   ERR("Elm_Code_Widget cannot finalize without calling elm_code_widget_code_set.");
   return NULL;
}

EOLIAN static void
_elm_code_widget_class_constructor(Eo_Class *klass EINA_UNUSED)
{

}

void
_elm_code_widget_cell_size_get(Elm_Code_Widget *widget, Evas_Coord *width, Evas_Coord *height)
{
   Elm_Code_Widget_Data *pd;
   Evas_Object *grid;
   Evas_Coord w = 0, h = 0;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);

   grid = eina_list_nth(pd->grids, 0);
   evas_object_textgrid_cell_size_get(grid, &w, &h);
   if (w == 0) w = 5;
   if (h == 0) h = 10;

   if (width) *width = w;
   if (height) *height = h;
}

static void
_elm_code_widget_scroll_by(Elm_Code_Widget *widget, int by_x, int by_y)
{
   Elm_Code_Widget_Data *pd;
   Evas_Coord x, y, w, h;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);

   elm_scroller_region_get(pd->scroller, &x, &y, &w, &h);
   x += by_x;
   y += by_y;
   elm_scroller_region_show(pd->scroller, x, y, w, h);
}

static void
_elm_code_widget_fill_line_token(Evas_Textgrid_Cell *cells, int count, int start, int end, Elm_Code_Token_Type type)
{
   int x;

   for (x = start; x <= end && x < count; x++)
     {
        cells[x - 1].fg = type;
     }
}

static unsigned int
_elm_code_widget_status_type_get(Elm_Code_Widget *widget, Elm_Code_Line *line, unsigned int col)
{
   Elm_Code_Widget_Data *pd;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);

   if (line->status != ELM_CODE_STATUS_TYPE_DEFAULT)
     return line->status;

   if (pd->editable && pd->focussed && pd->cursor_line == line->number)
     return ELM_CODE_STATUS_TYPE_CURRENT;

   if (pd->line_width_marker == col)
     return ELM_CODE_WIDGET_COLOR_GUTTER_BG;

   return ELM_CODE_STATUS_TYPE_DEFAULT;
}

static void
_elm_code_widget_fill_line_tokens(Elm_Code_Widget *widget, Evas_Textgrid_Cell *cells,
                                  unsigned int count, Elm_Code_Line *line)
{
   Eina_List *item;
   Elm_Code_Token *token;
   unsigned int start, end, length, offset;
   unsigned int token_start_col, token_end_col;

   offset = elm_obj_code_widget_text_left_gutter_width_get(widget);
   start = offset;
   length = elm_code_widget_line_text_column_width_get(widget, line) + offset;

   EINA_LIST_FOREACH(line->tokens, item, token)
     {
        token_start_col = elm_code_widget_line_text_column_width_to_position(widget, line, token->start) + offset;
        token_end_col = elm_code_widget_line_text_column_width_to_position(widget, line, token->end) + offset;

        if (token_start_col > start)
          _elm_code_widget_fill_line_token(cells, count, start, token_start_col, ELM_CODE_TOKEN_TYPE_DEFAULT);

        // TODO handle a token starting before the previous finishes
        end = token_end_col;
        if (token->continues)
          end = length + offset;
        _elm_code_widget_fill_line_token(cells, count, token_start_col, end, token->type);

        start = end + 1;
     }

   _elm_code_widget_fill_line_token(cells, count, start, length, ELM_CODE_TOKEN_TYPE_DEFAULT);
}

static void
_elm_code_widget_fill_gutter(Elm_Code_Widget *widget, Evas_Textgrid_Cell *cells,
                             int width, Elm_Code_Status_Type status, int line)
{
   char *number = NULL;
   int gutter, g;
   Elm_Code_Widget_Data *pd;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   gutter = elm_code_widget_text_left_gutter_width_get(widget);

   if (width < gutter)
     return;

   cells[gutter-1].codepoint = status_icons[status];
   cells[gutter-1].bold = 1;
   cells[gutter-1].fg = ELM_CODE_WIDGET_COLOR_GUTTER_FG;
   cells[gutter-1].bg = (status == ELM_CODE_STATUS_TYPE_DEFAULT) ? ELM_CODE_WIDGET_COLOR_GUTTER_BG : status;

   if (pd->show_line_numbers)
     {
        if (line > 0)
          {
             number = malloc(sizeof(char) * gutter);
             snprintf(number, gutter, "%*d", gutter - 1, line);
          }
        for (g = 0; g < gutter - 1; g++)
          {
             if (number)
               cells[g].codepoint = *(number + g);
             else
               cells[g].codepoint = 0;

             cells[g].fg = ELM_CODE_WIDGET_COLOR_GUTTER_FG;
             cells[g].bg = ELM_CODE_WIDGET_COLOR_GUTTER_BG;
          }

        if (number)
          free(number);
     }
}

static void
_elm_code_widget_fill_whitespace(Elm_Code_Widget *widget, Eina_Unicode character, Evas_Textgrid_Cell *cell)
{
   Elm_Code_Widget_Data *pd;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   if (!pd->show_whitespace)
     {
        if (character== '\t')
          cell->codepoint = 0;
        return;
     }

   switch (character)
     {
        case ' ':
          cell->codepoint = 0x00b7;
          break;
        case '\t':
          cell->codepoint = 0x2192;
          break;
        case '\n':
          cell->codepoint = 0x23ce;
          break;
        default:
          return;
     }

   cell->fg = ELM_CODE_WIDGET_COLOR_WHITESPACE;
}

static void
_elm_code_widget_fill_cursor(Elm_Code_Widget *widget, unsigned int number,
                             Evas_Textgrid_Cell *cells, int gutter, int w)
{
   Elm_Code_Widget_Data *pd;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);

   if (pd->editable && pd->focussed && pd->cursor_line == number)
     {
        if (pd->cursor_col + gutter - 1 < (unsigned int) w)
          cells[pd->cursor_col + gutter - 1].bg = ELM_CODE_WIDGET_COLOR_CURSOR;
     }
}

static void
_elm_code_widget_fill_selection(Elm_Code_Widget *widget, Elm_Code_Line *line, Evas_Textgrid_Cell *cells,
                                int gutter, int w)
{
   Elm_Code_Widget_Data *pd;
   unsigned int x, start, end;
   Elm_Code_Widget_Selection_Data *selection;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   if (!pd->selection)
     return;

   selection = elm_code_widget_selection_normalized_get(widget);
   if (selection->start_line > line->number || selection->end_line < line->number)
     {
        free(selection);
        return;
     }

   start = selection->start_col;
   if (selection->start_line < line->number)
     start = 1;
   end = selection->end_col;
   if (selection->end_line > line->number)
     end = w;
   free(selection);

   for (x = gutter + start - 1; x < gutter + end && x < (unsigned int) w; x++)
     cells[x].bg = ELM_CODE_WIDGET_COLOR_SELECTION;
}

static void
_elm_code_widget_fill_line(Elm_Code_Widget *widget, Elm_Code_Line *line)
{
   char *chr;
   Eina_Unicode unichr;
   unsigned int length, x, charwidth, i, w;
   int chrpos, gutter;
   Evas_Object *grid, *status;
   Evas_Textgrid_Cell *cells;
   Elm_Code_Widget_Data *pd;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   gutter = elm_obj_code_widget_text_left_gutter_width_get(widget);
   if (eina_list_count(pd->grids) < line->number)
     return;

   w = elm_code_widget_columns_get(widget);
   grid = eina_list_nth(pd->grids, line->number - 1);
   cells = evas_object_textgrid_cellrow_get(grid, 0);

   _elm_code_widget_fill_gutter(widget, cells, w, line->status, line->number);
   _elm_code_widget_fill_line_tokens(widget, cells, w, line);

   length = elm_code_widget_line_text_column_width_get(widget, line);
   chrpos = 0;
   chr = (char *)elm_code_line_text_get(line, NULL);

   for (x = gutter; x < (unsigned int) w && x < length + gutter; x+=charwidth)
     {
        unichr = eina_unicode_utf8_next_get(chr, &chrpos);

        cells[x].codepoint = unichr;
        cells[x].bg = _elm_code_widget_status_type_get(widget, line, x - gutter + 1);

        charwidth = 1;
        if (unichr == '\t')
          charwidth = elm_code_widget_text_tabwidth_at_column_get(widget, x - gutter + 1);
        for (i = x + 1; i < x + charwidth; i++)
          {
             cells[i].codepoint = 0;
             cells[i].bg = _elm_code_widget_status_type_get(widget, line, i - gutter + 1);
          }

        _elm_code_widget_fill_whitespace(widget, unichr, &cells[x]);
     }
   for (; x < (unsigned int) w; x++)
     {
        cells[x].codepoint = 0;
        cells[x].bg = _elm_code_widget_status_type_get(widget, line, x - gutter + 1);
     }

   _elm_code_widget_fill_selection(widget, line, cells, gutter, w);
   _elm_code_widget_fill_cursor(widget, line->number, cells, gutter, w);
   if (line->number < elm_code_file_lines_get(line->file))
     _elm_code_widget_fill_whitespace(widget, '\n', &cells[length + gutter]);

   evas_object_textgrid_update_add(grid, 0, 0, w, 1);

   // add a status below the line if needed (and remove those no longer needed)
   status = evas_object_data_get(grid, "status");
   if (line->status_text)
     {
        if (!status)
          {
             status = elm_label_add(pd->gridbox);
             evas_object_size_hint_weight_set(status, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
             evas_object_size_hint_align_set(status, 0.05, EVAS_HINT_FILL);
             evas_object_show(status);

             elm_box_pack_after(pd->gridbox, status, grid);
             evas_object_data_set(grid, "status", status);
          }
        elm_object_text_set(status, line->status_text);
     }
   else if (status)
     {
        elm_box_unpack(pd->gridbox, status);
        evas_object_hide(status);
        evas_object_data_set(grid, "status", NULL);
     }
}

static void
_elm_code_widget_fill_range(Elm_Code_Widget *widget, unsigned int first_row, unsigned int last_row,
                            Elm_Code_Line *newline)
{
   Elm_Code_Line *line;
   unsigned int y;
   Elm_Code_Widget_Data *pd;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   _elm_code_widget_resize(widget, newline);

   // if called from new line cb, no need to update whole range unless visible
   if (newline && !elm_obj_code_widget_line_visible_get(widget, newline))
     return;

   for (y = first_row; y <= last_row; y++)
     {
        line = elm_code_file_line_get(pd->code->file, y);

        _elm_code_widget_fill_line(widget, line);
     }
}

static void
_elm_code_widget_refresh(Elm_Code_Widget *widget, Elm_Code_Line *line)
{
   Evas_Coord scroll_y, scroll_h, oy;
   unsigned int first_row, last_row;

   Elm_Code_Widget_Data *pd;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);

   evas_object_geometry_get(widget, NULL, &oy, NULL, NULL);
   elm_scroller_region_get(pd->scroller, NULL, &scroll_y, NULL, &scroll_h);
   if (scroll_h == 0)
     return;

   elm_code_widget_position_at_coordinates_get(widget, 0, oy, &first_row, NULL);
   elm_code_widget_position_at_coordinates_get(widget, 0, oy + scroll_h, &last_row, NULL);

   if (last_row > elm_code_file_lines_get(pd->code->file))
     last_row = elm_code_file_lines_get(pd->code->file);

   _elm_code_widget_fill_range(widget, first_row, last_row, line);
}

static void
_elm_code_widget_fill(Elm_Code_Widget *widget)
{
   Elm_Code_Widget_Data *pd;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);

   _elm_code_widget_fill_range(widget, 1, elm_code_file_lines_get(pd->code->file), NULL);
}

static Eina_Bool
_elm_code_widget_line_cb(void *data, const Eo_Event *event)
{
   Elm_Code_Line *line;
   Elm_Code_Widget *widget;

   line = (Elm_Code_Line *)event->info;
   widget = (Elm_Code_Widget *)data;

   _elm_code_widget_refresh(widget, line);

   return EO_CALLBACK_CONTINUE;
}

static Eina_Bool
_elm_code_widget_file_cb(void *data, const Eo_Event *event EINA_UNUSED)
{
   Elm_Code_Widget *widget;

   widget = (Elm_Code_Widget *)data;

   _elm_code_widget_fill(widget);
   return EO_CALLBACK_CONTINUE;
}

static Eina_Bool
_elm_code_widget_selection_cb(void *data, const Eo_Event *event EINA_UNUSED)
{
   Elm_Code_Widget *widget;

   widget = (Elm_Code_Widget *)data;

   _elm_code_widget_refresh(widget, NULL);
   return EO_CALLBACK_CONTINUE;
}

static Eina_Bool
_elm_code_widget_selection_clear_cb(void *data, const Eo_Event *event EINA_UNUSED)
{
   Elm_Code_Widget *widget;

   widget = (Elm_Code_Widget *)data;

   _elm_code_widget_fill(widget);
   return EO_CALLBACK_CONTINUE;
}

static void
_elm_code_widget_resize_cb(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED,
                           void *event_info EINA_UNUSED)
{
   Elm_Code_Widget *widget;

   widget = (Elm_Code_Widget *)data;

   _elm_code_widget_refresh(widget, NULL);
}

static Eina_Bool
_elm_code_widget_cursor_key_will_move(Elm_Code_Widget *widget, const char *key)
{
   Elm_Code_Widget_Data *pd;
   Elm_Code_Line *line;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   line = elm_code_file_line_get(pd->code->file, pd->cursor_line);

   if (!line)
     return EINA_FALSE;

   if (!strcmp(key, "Up"))
     return pd->cursor_line > 1;
   else if (!strcmp(key, "Down"))
     return pd->cursor_line < elm_code_file_lines_get(pd->code->file);
   else if (!strcmp(key, "Left"))
     return pd->cursor_col > 1 || pd->cursor_line > 1;
   else if (!strcmp(key, "Right"))
     return pd->cursor_col < elm_code_widget_line_text_column_width_get(widget, line) + 1 ||
        pd->cursor_line < elm_code_file_lines_get(pd->code->file);
   else
     return EINA_FALSE;
}

static void
_elm_code_widget_update_focus_directions(Elm_Code_Widget *obj)
{
   if (_elm_code_widget_cursor_key_will_move(obj, "Up"))
     elm_widget_focus_next_object_set(obj, obj, ELM_FOCUS_UP);
   else
     elm_widget_focus_next_object_set(obj, NULL, ELM_FOCUS_UP);

   if (_elm_code_widget_cursor_key_will_move(obj, "Down"))
     elm_widget_focus_next_object_set(obj, obj, ELM_FOCUS_DOWN);
   else
     elm_widget_focus_next_object_set(obj, NULL, ELM_FOCUS_DOWN);

   if (_elm_code_widget_cursor_key_will_move(obj, "Left"))
     elm_widget_focus_next_object_set(obj, obj, ELM_FOCUS_LEFT);
   else
     elm_widget_focus_next_object_set(obj, NULL, ELM_FOCUS_LEFT);

   if (_elm_code_widget_cursor_key_will_move(obj, "Right"))
     elm_widget_focus_next_object_set(obj, obj, ELM_FOCUS_RIGHT);
   else
     elm_widget_focus_next_object_set(obj, NULL, ELM_FOCUS_RIGHT);

   elm_widget_focus_next_object_set(obj, obj, ELM_FOCUS_PREVIOUS);
   elm_widget_focus_next_object_set(obj, obj, ELM_FOCUS_NEXT);
}

static void
_elm_code_widget_cursor_ensure_visible(Elm_Code_Widget *widget)
{
   Evas_Coord viewx, viewy, vieww, viewh, cellw, cellh;
   Evas_Coord curx, cury, oy, rowy;
   Evas_Object *grid;
   Elm_Code_Widget_Data *pd;
   int gutter;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);

   evas_object_geometry_get(widget, NULL, &oy, NULL, NULL);
   elm_scroller_region_get(pd->scroller, &viewx, &viewy, &vieww, &viewh);
   _elm_code_widget_cell_size_get(widget, &cellw, &cellh);

   grid = eina_list_data_get(eina_list_nth_list(pd->grids, pd->cursor_line - 1));
   evas_object_geometry_get(grid, NULL, &rowy, NULL, NULL);

   gutter = elm_obj_code_widget_text_left_gutter_width_get(widget);
   curx = (pd->cursor_col + gutter - 1) * cellw;
   cury = rowy + viewy - oy;

   if (curx >= viewx && cury >= viewy && curx + cellw <= viewx + vieww && cury + cellh <= viewy + viewh)
     return;

   elm_scroller_region_show(pd->scroller, curx, cury, cellw, cellh);
}

static void
_elm_code_widget_cursor_move(Elm_Code_Widget *widget, Elm_Code_Widget_Data *pd, unsigned int col, unsigned int line,
                             Eina_Bool was_key)
{
   Elm_Code *code;
   unsigned int oldrow;

   oldrow = pd->cursor_line;
   pd->cursor_col = col;
   pd->cursor_line = line;

   if (!was_key)
     _elm_code_widget_update_focus_directions(widget);

   eo_event_callback_call(widget, ELM_OBJ_CODE_WIDGET_EVENT_CURSOR_CHANGED, widget);
   _elm_code_widget_cursor_ensure_visible(widget);

   if (oldrow != pd->cursor_line)
     {
        code = pd->code;
        if (oldrow <= elm_code_file_lines_get(code->file))
          _elm_code_widget_fill_line(widget, elm_code_file_line_get(pd->code->file, oldrow));
     }
   _elm_code_widget_fill_line(widget, elm_code_file_line_get(pd->code->file, pd->cursor_line));
}

EOLIAN static Eina_Bool
_elm_code_widget_position_at_coordinates_get(Eo *obj, Elm_Code_Widget_Data *pd,
                                             Evas_Coord x, Evas_Coord y,
                                             unsigned int *row, int *col)
{
   Elm_Code_Widget *widget;
   Eina_List *item;
   Elm_Code_Line *line;
   Evas_Coord ox, oy, sx, sy, rowy;
   Evas_Object *grid;
   int cw, ch, gutter;
   unsigned int guess, number;

   widget = (Elm_Code_Widget *)obj;
   evas_object_geometry_get(widget, &ox, &oy, NULL, NULL);
   elm_scroller_region_get(pd->scroller, &sx, &sy, NULL, NULL);
   x = x + sx - ox;
   y = y + sy - oy;

   _elm_code_widget_cell_size_get(widget, &cw, &ch);
   gutter = elm_obj_code_widget_text_left_gutter_width_get(widget);

   guess = ((double) y / ch) + 1;
   number = guess;

   // unfortunately EINA_LIST_REVERSE_FOREACH skips to the end of the list...
   for (item = eina_list_nth_list(pd->grids, guess - 1), grid = eina_list_data_get(item);
        item;
        item = eina_list_prev(item), grid = eina_list_data_get(item))
     {
        evas_object_geometry_get(grid, NULL, &rowy, NULL, NULL);

        if (rowy + sy - oy - 1<= y)
          break;

        number--;
     }

   if (col)
     *col = ((double) x / cw) - gutter + 1;
   if (row)
     *row = number;

   line = elm_code_file_line_get(pd->code->file, number);
   return !!line;
}

static void
_elm_code_widget_clicked_gutter_cb(Elm_Code_Widget *widget, unsigned int row)
{
   Elm_Code_Widget_Data *pd;
   Elm_Code_Line *line;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);

   line = elm_code_file_line_get(pd->code->file, row);
   if (!line)
     return;

   eo_event_callback_call(widget, ELM_OBJ_CODE_WIDGET_EVENT_LINE_GUTTER_CLICKED, line);
}

static void
_elm_code_widget_clicked_editable_cb(Elm_Code_Widget *widget, unsigned int row, unsigned int col)
{
   Elm_Code_Widget_Data *pd;
   Elm_Code_Line *line;
   unsigned int column_width;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);

   line = elm_code_file_line_get(pd->code->file, row);
   if (!line)
     return;
   column_width = elm_code_widget_line_text_column_width_get(widget, line);

   if (col > column_width + 1)
     col = column_width + 1;
   else if (col <= 0)
     col = 1;

   _elm_code_widget_cursor_move(widget, pd, col, row, EINA_FALSE);
}

static void
_elm_code_widget_clicked_readonly_cb(Elm_Code_Widget *widget, unsigned int row)
{
   Elm_Code_Widget_Data *pd;
   Elm_Code_Line *line;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   line = elm_code_file_line_get(pd->code->file, row);
   if (!line)
     return;

   eo_event_callback_call(widget, ELM_OBJ_CODE_WIDGET_EVENT_LINE_CLICKED, line);
}

static void
_elm_code_widget_mouse_down_cb(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED,
                               void *event_info)
{
   Elm_Code_Widget *widget;
   Elm_Code_Widget_Data *pd;
   Evas_Event_Mouse_Down *event;
   unsigned int row;
   int col;

   widget = (Elm_Code_Widget *)data;
   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   event = (Evas_Event_Mouse_Down *)event_info;
   _elm_code_widget_position_at_coordinates_get(widget, pd, event->canvas.x, event->canvas.y, &row, &col);

   elm_code_widget_selection_clear(widget);
   if (event->flags & EVAS_BUTTON_TRIPLE_CLICK)
     {
        elm_code_widget_selection_select_line(widget, row);
        return;
     }
   else if (event->flags & EVAS_BUTTON_DOUBLE_CLICK)
     {
        elm_code_widget_selection_select_word(widget, row, col);
        return;
     }

   if (pd->editable)
     _elm_code_widget_clicked_editable_cb(widget, row, (unsigned int) col);
}

static void
_elm_code_widget_mouse_move_cb(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED,
                            void *event_info)
{
   Elm_Code_Widget *widget;
   Elm_Code_Widget_Data *pd;
   Evas_Event_Mouse_Move *event;
   unsigned int row;
   int col;

   widget = (Elm_Code_Widget *)data;
   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   event = (Evas_Event_Mouse_Move *)event_info;

   _elm_code_widget_position_at_coordinates_get(widget, pd, event->cur.canvas.x, event->cur.canvas.y, &row, &col);

   if (!pd->editable || !event->buttons)
     return;

   if (!pd->selection)
     if (col > 0 && row <= elm_code_file_lines_get(pd->code->file))
       elm_code_widget_selection_start(widget, row, col);
   elm_code_widget_selection_end(widget, row, col);
}

static void
_elm_code_widget_mouse_up_cb(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED,
                            void *event_info)
{
   Elm_Code_Widget *widget;
   Elm_Code_Widget_Data *pd;
   Evas_Event_Mouse_Up *event;
   Evas_Coord x, y;
   unsigned int row;
   int col;
   Eina_Bool hasline;

   widget = (Elm_Code_Widget *)data;
   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   event = (Evas_Event_Mouse_Up *)event_info;

   if (pd->selection)
     {
        if (pd->selection->start_line == pd->selection->end_line &&
            pd->selection->start_col == pd->selection->end_col)
          elm_code_widget_selection_clear(widget);
        else
          return;
     }

   x = event->canvas.x;
   y = event->canvas.y;
   hasline = _elm_code_widget_position_at_coordinates_get(widget, pd, x, y, &row, &col);
   if (!hasline)
     return;

   if (col <= 0)
     _elm_code_widget_clicked_gutter_cb(widget, row);
   else if (pd->editable)
     _elm_code_widget_clicked_editable_cb(widget, row, (unsigned int) col);
   else
     _elm_code_widget_clicked_readonly_cb(widget, row);
}

static void
_elm_code_widget_cursor_move_home(Elm_Code_Widget *widget)
{
   Elm_Code_Widget_Data *pd;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   elm_code_widget_selection_clear(widget);

   if (pd->cursor_col <= 1)
     return;

   _elm_code_widget_cursor_move(widget, pd, 1, pd->cursor_line, EINA_TRUE);
}

static void
_elm_code_widget_cursor_move_end(Elm_Code_Widget *widget)
{
   Elm_Code_Widget_Data *pd;
   Elm_Code_Line *line;
   unsigned int lastcol;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   elm_code_widget_selection_clear(widget);

   line = elm_code_file_line_get(pd->code->file, pd->cursor_line);
   lastcol = elm_code_widget_line_text_column_width_get(widget, line);
   if (pd->cursor_col > lastcol + 1)
     return;

   _elm_code_widget_cursor_move(widget, pd, lastcol + 1, pd->cursor_line, EINA_TRUE);
}

static void
_elm_code_widget_cursor_move_up(Elm_Code_Widget *widget)
{
   Elm_Code_Widget_Data *pd;
   Elm_Code_Line *line;
   unsigned int row, col, column_width;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   row = pd->cursor_line;
   col = pd->cursor_col;
   elm_code_widget_selection_clear(widget);

   if (pd->cursor_line <= 1)
     return;

   row--;
   line = elm_code_file_line_get(pd->code->file, row);
   column_width = elm_code_widget_line_text_column_width_get(widget, line);
   if (col > column_width + 1)
     col = column_width + 1;

   _elm_code_widget_cursor_move(widget, pd, col, row, EINA_TRUE);
}

static void
_elm_code_widget_cursor_move_down(Elm_Code_Widget *widget)
{
   Elm_Code_Widget_Data *pd;
   Elm_Code_Line *line;
   unsigned int row, col, column_width;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   row = pd->cursor_line;
   col = pd->cursor_col;
   elm_code_widget_selection_clear(widget);

   if (pd->cursor_line >= elm_code_file_lines_get(pd->code->file))
     return;

   row++;
   line = elm_code_file_line_get(pd->code->file, row);
   column_width = elm_code_widget_line_text_column_width_get(widget, line);
   if (col > column_width + 1)
     col = column_width + 1;

   _elm_code_widget_cursor_move(widget, pd, col, row, EINA_TRUE);
}

static void
_elm_code_widget_cursor_move_left(Elm_Code_Widget *widget)
{
   Elm_Code_Widget_Data *pd;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   elm_code_widget_selection_clear(widget);

   if (pd->cursor_col <= 1)
     {
        if (pd->cursor_line > 1)
          {
             _elm_code_widget_cursor_move_up(widget);
             _elm_code_widget_cursor_move_end(widget);
          }
        return;
     }

   _elm_code_widget_cursor_move(widget, pd, pd->cursor_col-1, pd->cursor_line, EINA_TRUE);
}

static void
_elm_code_widget_cursor_move_right(Elm_Code_Widget *widget)
{
   Elm_Code_Widget_Data *pd;
   Elm_Code_Line *line;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   elm_code_widget_selection_clear(widget);

   line = elm_code_file_line_get(pd->code->file, pd->cursor_line);
   if (pd->cursor_col > elm_code_widget_line_text_column_width_get(widget, line))
     {
        if (pd->cursor_line < elm_code_file_lines_get(pd->code->file))
          {
             _elm_code_widget_cursor_move_down(widget);
             _elm_code_widget_cursor_move_home(widget);
          }
        return;
     }

   _elm_code_widget_cursor_move(widget, pd, pd->cursor_col+1, pd->cursor_line, EINA_TRUE);
}

static unsigned int
_elm_code_widget_cursor_move_page_height_get(Elm_Code_Widget *widget)
{
   unsigned int lines;

   lines = elm_obj_code_widget_lines_visible_get(widget);
   return lines * 0.85;
}

static void
_elm_code_widget_cursor_move_pageup(Elm_Code_Widget *widget)
{
   Elm_Code_Widget_Data *pd;
   Elm_Code_Line *line;
   unsigned int row, col, column_width;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   row = pd->cursor_line;
   col = pd->cursor_col;

   elm_code_widget_selection_clear(widget);
   if (pd->cursor_line <= 1)
     return;

   if (row > _elm_code_widget_cursor_move_page_height_get(widget))
     row -= _elm_code_widget_cursor_move_page_height_get(widget);
   else
     row = 1;

   line = elm_code_file_line_get(pd->code->file, row);
   column_width = elm_code_widget_line_text_column_width_get(widget, line);
   if (col > column_width + 1)
     col = column_width + 1;

   _elm_code_widget_cursor_move(widget, pd, col, row, EINA_TRUE);
}

static void
_elm_code_widget_cursor_move_pagedown(Elm_Code_Widget *widget)
{
   Elm_Code_Widget_Data *pd;
   Elm_Code_Line *line;
   unsigned int row, col, column_width;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   row = pd->cursor_line;
   col = pd->cursor_col;

   elm_code_widget_selection_clear(widget);
   if (pd->cursor_line >= elm_code_file_lines_get(pd->code->file))
     return;

   row += _elm_code_widget_cursor_move_page_height_get(widget);
   if (row > elm_code_file_lines_get(pd->code->file))
     row = elm_code_file_lines_get(pd->code->file);

   line = elm_code_file_line_get(pd->code->file, row);
   column_width = elm_code_widget_line_text_column_width_get(widget, line);
   if (col > column_width + 1)
     col = column_width + 1;

   _elm_code_widget_cursor_move(widget, pd, col, row, EINA_TRUE);
}

static Eina_Bool
_elm_code_widget_delete_selection(Elm_Code_Widget *widget)
{
   Elm_Code_Widget_Data *pd;
   Elm_Code_Widget_Selection_Data *selection;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);

   if (!pd->selection)
     return EINA_FALSE;

   selection = elm_code_widget_selection_normalized_get(widget);
   elm_code_widget_selection_delete(widget);
   elm_code_widget_cursor_position_set(widget, selection->start_col, selection->start_line);
   free(selection);

   return EINA_TRUE;
}

static Elm_Code_Widget_Change_Info *
_elm_code_widget_change_create(unsigned int start_col, unsigned int start_line,
                               unsigned int end_col, unsigned int end_line,
                               const char *text, unsigned int length, Eina_Bool insert)
{
   Elm_Code_Widget_Change_Info *info;

   info = calloc(1, sizeof(*info));
   info->insert = insert;

   info->start_col = start_col;
   info->start_line = start_line;
   info->end_col = end_col;
   info->end_line = end_line;

   info->content = malloc((length + 1) * sizeof(char));
   strncpy(info->content, text, length);
   info->content[length] = '\0';
   info->length = length;

   return info;
}

static void
_elm_code_widget_change_free(Elm_Code_Widget_Change_Info *info)
{
   free((char *)info->content);
   free(info);
}

void
_elm_code_widget_text_at_cursor_insert(Elm_Code_Widget *widget, const char *text, int length)
{
   Elm_Code *code;
   Elm_Code_Line *line;
   Elm_Code_Widget_Change_Info *change;
   unsigned int row, col, position, col_width;

   _elm_code_widget_delete_selection(widget);
   code = elm_obj_code_widget_code_get(widget);
   elm_obj_code_widget_cursor_position_get(widget, &col, &row);
   line = elm_code_file_line_get(code->file, row);
   if (line == NULL)
     {
        elm_code_file_line_append(code->file, "", 0, NULL);
        row = elm_code_file_lines_get(code->file);
        line = elm_code_file_line_get(code->file, row);
     }

   position = elm_code_widget_line_text_position_for_column_get(widget, line, col);
   elm_code_line_text_insert(line, position, text, length);
   col_width = elm_code_widget_line_text_column_width_to_position(widget, line, position + length) -
               elm_code_widget_line_text_column_width_to_position(widget, line, position);

   // a workaround for when the cursor position would be off the line width
   _elm_code_widget_resize(widget, line);
   elm_obj_code_widget_cursor_position_set(widget, col + col_width, row);
   eo_event_callback_call(widget, ELM_OBJ_CODE_WIDGET_EVENT_CHANGED_USER, NULL);

   change = _elm_code_widget_change_create(col, row, col + col_width - 1, row, text, length, EINA_TRUE);
   _elm_code_widget_undo_change_add(widget, change);
   _elm_code_widget_change_free(change);
}

static void
_elm_code_widget_tab_at_cursor_insert(Elm_Code_Widget *widget)
{
   Elm_Code_Widget_Data *pd;
   unsigned int col, row, rem;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   if (!pd->tab_inserts_spaces)
     {
        _elm_code_widget_text_at_cursor_insert(widget, "\t", 1);
        return;
     }

   elm_obj_code_widget_cursor_position_get(widget, &col, &row);
   rem = (col - 1) % pd->tabstop;

   while (rem < pd->tabstop)
     {
        _elm_code_widget_text_at_cursor_insert(widget, " ", 1);
        rem++;
     }
}

void
_elm_code_widget_newline(Elm_Code_Widget *widget)
{
   Elm_Code *code;
   Elm_Code_Line *line;
   Elm_Code_Widget_Change_Info *change;
   unsigned int row, col, position, oldlen, leading, width, indent;
   char *oldtext;

   _elm_code_widget_delete_selection(widget);
   code = elm_obj_code_widget_code_get(widget);
   elm_obj_code_widget_cursor_position_get(widget, &col, &row);
   line = elm_code_file_line_get(code->file, row);
   if (line == NULL)
     {
        elm_code_file_line_append(code->file, "", 0, NULL);
        row = elm_code_file_lines_get(code->file);
        line = elm_code_file_line_get(code->file, row);
     }
   oldtext = (char *) elm_code_line_text_get(line, &oldlen);
   oldtext = strndup(oldtext, oldlen);

   position = elm_code_widget_line_text_position_for_column_get(widget, line, col);
   elm_code_line_split_at(line, position);
   width = elm_code_widget_line_text_column_width_get(widget, line);

   line = elm_code_file_line_get(code->file, row + 1);
   leading = elm_code_text_leading_whitespace_length(oldtext, oldlen);
   elm_code_line_text_leading_whitespace_strip(line);
   elm_code_line_text_insert(line, 0, oldtext, leading);
   free(oldtext);

   indent = elm_obj_code_widget_line_text_column_width_to_position(widget, line, leading);
   elm_obj_code_widget_cursor_position_set(widget, indent, row + 1);
   eo_event_callback_call(widget, ELM_OBJ_CODE_WIDGET_EVENT_CHANGED_USER, NULL);

   change = _elm_code_widget_change_create(width + 1, row, indent - 1, row + 1, "\n", 1, EINA_TRUE);
   _elm_code_widget_undo_change_add(widget, change);
   _elm_code_widget_change_free(change);
}

static void
_elm_code_widget_backspaceline(Elm_Code_Widget *widget, Eina_Bool nextline)
{
   Elm_Code *code;
   Elm_Code_Line *line, *oldline;
   unsigned int row, col, oldlength, position;

   code = elm_obj_code_widget_code_get(widget);
   elm_obj_code_widget_cursor_position_get(widget, &col, &row);
   line = elm_code_file_line_get(code->file, row);

   if (nextline)
     {
        elm_code_line_merge_down(line);
     }
   else
     {
        oldline = elm_code_file_line_get(code->file, row - 1);
        elm_code_line_text_get(oldline, &oldlength);
        elm_code_line_merge_up(line);

        position = elm_code_widget_line_text_column_width_to_position(widget, oldline, oldlength);

        elm_obj_code_widget_cursor_position_set(widget, position, row - 1);
     }
// TODO construct and pass a change object
   eo_event_callback_call(widget, ELM_OBJ_CODE_WIDGET_EVENT_CHANGED_USER, NULL);
}

void
_elm_code_widget_backspace(Elm_Code_Widget *widget)
{
   Elm_Code *code;
   Elm_Code_Line *line;
   Elm_Code_Widget_Change_Info *change;
   unsigned int row, col, position, start_col, end_col, char_width;
   const char *text;

   if (_elm_code_widget_delete_selection(widget))
     return; // TODO fire the change and log it

   code = elm_obj_code_widget_code_get(widget);
   elm_obj_code_widget_cursor_position_get(widget, &col, &row);

   if (col <= 1)
     {
        if (row == 1)
          return;

        _elm_code_widget_backspaceline(widget, EINA_FALSE);
        return;
     }

   line = elm_code_file_line_get(code->file, row);

   position = elm_code_widget_line_text_position_for_column_get(widget, line, col);
   end_col = elm_code_widget_line_text_column_width_to_position(widget, line, position);
   start_col = elm_code_widget_line_text_column_width_to_position(widget, line,
      elm_code_widget_line_text_position_for_column_get(widget, line, col - 1));
   char_width = position - elm_code_widget_line_text_position_for_column_get(widget, line, start_col);

   text = elm_code_widget_text_between_positions_get(widget, start_col, row, end_col, row);
   elm_code_line_text_remove(line, position - char_width, char_width);
   elm_obj_code_widget_cursor_position_set(widget, start_col, row);

   eo_event_callback_call(widget, ELM_OBJ_CODE_WIDGET_EVENT_CHANGED_USER, NULL);

   change = _elm_code_widget_change_create(start_col, row, end_col, row, text, char_width, EINA_FALSE);
   _elm_code_widget_undo_change_add(widget, change);
   _elm_code_widget_change_free(change);
}

void
_elm_code_widget_delete(Elm_Code_Widget *widget)
{
   Elm_Code *code;
   Elm_Code_Line *line;
   Elm_Code_Widget_Change_Info *change;
   unsigned int row, col, position, char_width, start_col, end_col;
   const char *text;

   if (_elm_code_widget_delete_selection(widget))
     return; // TODO fire the change and log it

   code = elm_obj_code_widget_code_get(widget);
   elm_obj_code_widget_cursor_position_get(widget, &col, &row);
   line = elm_code_file_line_get(code->file, row);
   if (col > elm_code_widget_line_text_column_width_get(widget, line))
     {
        if (row == elm_code_file_lines_get(code->file))
          return;

        _elm_code_widget_backspaceline(widget, EINA_TRUE);
        return;
     }

   position = elm_code_widget_line_text_position_for_column_get(widget, line, col);
   char_width = elm_code_widget_line_text_position_for_column_get(widget, line, col + 1) - position;
   if (char_width == 0) // a partial tab
     char_width = 1;
   start_col = elm_code_widget_line_text_column_width_to_position(widget, line, position);
   end_col = elm_code_widget_line_text_column_width_to_position(widget, line, position + char_width);

   text = elm_code_widget_text_between_positions_get(widget, start_col, row, end_col, row);
   elm_code_line_text_remove(line, position, char_width);
   elm_obj_code_widget_cursor_position_set(widget, start_col, row);
   eo_event_callback_call(widget, ELM_OBJ_CODE_WIDGET_EVENT_CHANGED_USER, NULL);

   change = _elm_code_widget_change_create(start_col, row, col, row, text, char_width, EINA_FALSE);
   _elm_code_widget_undo_change_add(widget, change);
   _elm_code_widget_change_free(change);
}

static void
_elm_code_widget_control_key_down_cb(Elm_Code_Widget *widget, const char *key)
{
   if (!key)
     return;

   if (!strcmp("c", key))
     {
        elm_code_widget_selection_copy(widget);
        return;
     }

   if (!strcmp("v", key))
     elm_code_widget_selection_paste(widget);
   else if (!strcmp("x", key))
     elm_code_widget_selection_cut(widget);
   else if (!strcmp("z", key))
     elm_code_widget_undo(widget);

   // TODO construct and pass a change object for cut and paste
         eo_event_callback_call(widget, ELM_OBJ_CODE_WIDGET_EVENT_CHANGED_USER, NULL);
}

static void
_elm_code_widget_key_down_cb(void *data, Evas *evas EINA_UNUSED,
                              Evas_Object *obj EINA_UNUSED, void *event_info)
{
   Elm_Code_Widget *widget;
   Elm_Code_Widget_Data *pd;

   widget = (Elm_Code_Widget *)data;
   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);

   Evas_Event_Key_Down *ev = event_info;

   if (!pd->editable)
     return;

   _elm_code_widget_update_focus_directions((Elm_Code_Widget *)obj);

   if (evas_key_modifier_is_set(ev->modifiers, "Control"))
     {
        _elm_code_widget_control_key_down_cb(widget, ev->key);
        return;
     }

   if (!strcmp(ev->key, "Up"))
     _elm_code_widget_cursor_move_up(widget);
   else if (!strcmp(ev->key, "Down"))
     _elm_code_widget_cursor_move_down(widget);
   else if (!strcmp(ev->key, "Left"))
     _elm_code_widget_cursor_move_left(widget);
   else if (!strcmp(ev->key, "Right"))
     _elm_code_widget_cursor_move_right(widget);
   else if (!strcmp(ev->key, "Home"))
     _elm_code_widget_cursor_move_home(widget);
   else if (!strcmp(ev->key, "End"))
     _elm_code_widget_cursor_move_end(widget);
   else if (!strcmp(ev->key, "Prior"))
     _elm_code_widget_cursor_move_pageup(widget);
   else if (!strcmp(ev->key, "Next"))
     _elm_code_widget_cursor_move_pagedown(widget);

   else if (!strcmp(ev->key, "KP_Enter") || !strcmp(ev->key, "Return"))
     _elm_code_widget_newline(widget);
   else if (!strcmp(ev->key, "BackSpace"))
     _elm_code_widget_backspace(widget);
   else if (!strcmp(ev->key, "Delete"))
     _elm_code_widget_delete(widget);
   else if (!strcmp(ev->key, "Tab"))
     _elm_code_widget_tab_at_cursor_insert(widget);

   else if (!strcmp(ev->key, "Escape"))
     DBG("TODO - Escape not yet captured");

   else if (ev->string && strlen(ev->string) == 1)
     _elm_code_widget_text_at_cursor_insert(widget, ev->string, 1);
   else
     INF("Unhandled key %s (%s) (%s)", ev->key, ev->keyname, ev->string);
}

static void
_elm_code_widget_focused_event_cb(void *data, Evas_Object *obj,
                                  void *event_info EINA_UNUSED)
{
   Elm_Code_Widget *widget;
   Elm_Code_Widget_Data *pd;

   widget = (Elm_Code_Widget *)data;
   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);

   pd->focussed = EINA_TRUE;

   _elm_code_widget_update_focus_directions(widget);
   _elm_code_widget_refresh(obj, NULL);
}

static void
_elm_code_widget_unfocused_event_cb(void *data, Evas_Object *obj,
                                    void *event_info EINA_UNUSED)
{
   Elm_Code_Widget *widget;
   Elm_Code_Widget_Data *pd;

   widget = (Elm_Code_Widget *)data;
   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);

   pd->focussed = EINA_FALSE;
   _elm_code_widget_refresh(obj, NULL);
}

static void
_elm_code_widget_scroll_event_cb(void *data, Evas_Object *obj EINA_UNUSED,
                                 void *event_info EINA_UNUSED)
{
   Elm_Code_Widget *widget;

   widget = (Elm_Code_Widget *)data;

   _elm_code_widget_refresh(widget, NULL);
}

EOLIAN static Eina_Bool
_elm_code_widget_elm_widget_event(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd EINA_UNUSED,
                                  Evas_Object *src EINA_UNUSED, Evas_Callback_Type type, void *event_info)
{
   Evas_Event_Key_Down *ev = event_info;

   if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;

   if (!strcmp(ev->key, "BackSpace"))
     {
        ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
        return EINA_TRUE;
     }

   return EINA_FALSE;
}

EOLIAN static Eina_Bool
_elm_code_widget_elm_widget_focus_next_manager_is(Eo *obj EINA_UNUSED,
                                                  Elm_Code_Widget_Data *pd EINA_UNUSED)
{
   return EINA_FALSE;
}

EOLIAN static Eina_Bool
_elm_code_widget_elm_widget_focus_direction_manager_is(Eo *obj EINA_UNUSED,
                                                       Elm_Code_Widget_Data *pd EINA_UNUSED)
{
   return EINA_TRUE;
}

static void
_elm_code_widget_setup_palette(Evas_Object *o)
{
   double feint = 0.5;

   // setup status colors
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_STATUS_TYPE_DEFAULT,
                                    36, 36, 36, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_STATUS_TYPE_CURRENT,
                                    12, 12, 12, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_STATUS_TYPE_IGNORED,
                                    36, 36, 36, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_STATUS_TYPE_NOTE,
                                    255, 153, 0, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_STATUS_TYPE_WARNING,
                                    255, 153, 0, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_STATUS_TYPE_ERROR,
                                    205, 54, 54, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_STATUS_TYPE_FATAL,
                                    205, 54, 54, 255);

   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_STATUS_TYPE_ADDED,
                                    36, 96, 36, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_STATUS_TYPE_REMOVED,
                                    96, 36, 36, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_STATUS_TYPE_CHANGED,
                                    36, 36, 96, 255);

   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_STATUS_TYPE_PASSED,
                                    54, 96, 54, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_STATUS_TYPE_FAILED,
                                    96, 54, 54, 255);

   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_STATUS_TYPE_TODO,
                                    54, 54, 96, 255);

   // setup token colors
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_TOKEN_TYPE_DEFAULT,
                                    205, 205, 205, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_TOKEN_TYPE_COMMENT,
                                    51, 153, 255, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_TOKEN_TYPE_STRING,
                                    255, 90, 53, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_TOKEN_TYPE_NUMBER,
                                    212, 212, 42, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_TOKEN_TYPE_BRACE,
                                    101, 101, 101, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_TOKEN_TYPE_TYPE,
                                    51, 153, 255, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_TOKEN_TYPE_CLASS,
                                    114, 170, 212, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_TOKEN_TYPE_FUNCTION,
                                    114, 170, 212, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_TOKEN_TYPE_PARAM,
                                    255, 255, 255, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_TOKEN_TYPE_KEYWORD,
                                    255, 153, 0, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_TOKEN_TYPE_PREPROCESSOR,
                                    0, 176, 0, 255);

   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_TOKEN_TYPE_ADDED,
                                    54, 255, 54, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_TOKEN_TYPE_REMOVED,
                                    255, 54, 54, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_TOKEN_TYPE_CHANGED,
                                    54, 54, 255, 255);

   // other styles that the widget uses
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_WIDGET_COLOR_CURSOR,
                                    205, 205, 54, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_WIDGET_COLOR_SELECTION,
                                    51, 153, 255, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_WIDGET_COLOR_GUTTER_BG,
                                    75, 75, 75, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_WIDGET_COLOR_GUTTER_FG,
                                    139, 139, 139, 255);
   evas_object_textgrid_palette_set(o, EVAS_TEXTGRID_PALETTE_STANDARD, ELM_CODE_WIDGET_COLOR_WHITESPACE,
                                    101 * feint, 101 * feint, 101 * feint, 255 * feint);
}

static void
_elm_code_widget_ensure_n_grid_rows(Elm_Code_Widget *widget, int rows)
{
   Evas_Object *grid;
   int existing, i;
   Elm_Code_Widget_Data *pd;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   existing = eina_list_count(pd->grids);

   // trim unneeded rows in our rendering
   if (rows < existing)
     {
        for (i = existing - rows; i > 0; i--)
          {
             grid = eina_list_data_get(eina_list_last(pd->grids));
             evas_object_hide(grid);
             elm_box_unpack(pd->gridbox, grid);
             pd->grids = eina_list_remove_list(pd->grids, eina_list_last(pd->grids));
          }
        rows = existing;
     }

   if (rows == existing)
     return;

   for (i = existing; i < rows; i++)
     {
        grid = evas_object_textgrid_add(pd->gridbox);
        evas_object_size_hint_weight_set(grid, EVAS_HINT_EXPAND, 0.0);
        evas_object_size_hint_align_set(grid, EVAS_HINT_FILL, 0.0);
        evas_object_show(grid);
        _elm_code_widget_setup_palette(grid);

        elm_box_pack_end(pd->gridbox, grid);
        pd->grids = eina_list_append(pd->grids, grid);

        evas_object_event_callback_add(grid, EVAS_CALLBACK_MOUSE_DOWN, _elm_code_widget_mouse_down_cb, widget);
        evas_object_event_callback_add(grid, EVAS_CALLBACK_MOUSE_MOVE, _elm_code_widget_mouse_move_cb, widget);
        evas_object_event_callback_add(grid, EVAS_CALLBACK_MOUSE_UP, _elm_code_widget_mouse_up_cb, widget);

        evas_object_textgrid_font_set(grid, pd->font_name, pd->font_size * elm_config_scale_get());
     }
}

static void
_elm_code_widget_resize(Elm_Code_Widget *widget, Elm_Code_Line *newline)
{
   Elm_Code_Line *line;
   Eina_List *item;
   Evas_Object *grid;
   Evas_Coord ww, wh, old_width, old_height;
   int w, h, cw, ch, gutter;
   unsigned int line_width;
   Elm_Code_Widget_Data *pd;

   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET_CLASS);
   gutter = elm_obj_code_widget_text_left_gutter_width_get(widget);

   if (!pd->code)
     return;

   evas_object_geometry_get(widget, NULL, NULL, &ww, &wh);

   old_width = ww;
   old_height = wh;
   w = 0;
   h = elm_code_file_lines_get(pd->code->file);

   if (newline)
     {
        line = eina_list_data_get(pd->code->file->lines);
        if (line)
          {
             line_width = elm_code_widget_line_text_column_width_get(widget, newline);
             w = (int) line_width + gutter + 1;
          }
        line_width = elm_code_widget_line_text_column_width_get(widget, line);
        if ((int) line_width + gutter + 1 > w)
          {
             w = (int) line_width + gutter + 1;
          }
     }
   else
     {
        EINA_LIST_FOREACH(pd->code->file->lines, item, line)
          {
             line_width = elm_code_widget_line_text_column_width_get(widget, line);
             if ((int) line_width + gutter + 1 > w)
               w = (int) line_width + gutter + 1;
          }
     }

   _elm_code_widget_ensure_n_grid_rows(widget, h);
   _elm_code_widget_cell_size_get(widget, &cw, &ch);
   if (w*cw > ww)
     ww = w*cw;
   if (h*ch > wh)
     wh = h*ch;
   pd->col_count = ww/cw + 1;

   EINA_LIST_FOREACH(pd->grids, item, grid)
     {
        evas_object_textgrid_size_set(grid, pd->col_count, 1);
        evas_object_size_hint_min_set(grid, w*cw, ch);
     }

   if (!newline) return;

   if (pd->gravity_x == 1.0 || pd->gravity_y == 1.0)
     _elm_code_widget_scroll_by(widget,
        (pd->gravity_x == 1.0 && ww > old_width) ? ww - old_width : 0,
        (pd->gravity_y == 1.0 && wh > old_height) ? wh - old_height : 0);
}

EOAPI void
_elm_code_widget_line_refresh(Eo *obj, Elm_Code_Widget_Data *pd EINA_UNUSED, Elm_Code_Line *line)
{
   _elm_code_widget_fill_line(obj, line);
}

EOAPI Eina_Bool
_elm_code_widget_line_visible_get(Eo *obj, Elm_Code_Widget_Data *pd, Elm_Code_Line *line)
{
   Evas_Coord cellh, viewy, viewh;

   elm_scroller_region_get(pd->scroller, NULL, &viewy, NULL, &viewh);
   _elm_code_widget_cell_size_get(obj, NULL, &cellh);

   if (((int)line->number - 1) * cellh > viewy + viewh || (int)line->number * cellh < viewy)
     return EINA_FALSE;

   return EINA_TRUE;;
}

EOAPI unsigned int
_elm_code_widget_lines_visible_get(Eo *obj, Elm_Code_Widget_Data *pd)
{
   Evas_Coord cellh, viewh;

   elm_scroller_region_get(pd->scroller, NULL, NULL, NULL, &viewh);
   _elm_code_widget_cell_size_get(obj, NULL, &cellh);

   return viewh / cellh + 1;
}

EOLIAN static void
_elm_code_widget_font_set(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd,
                          const char *name, Evas_Font_Size size)
{
   Eina_List *item;
   Evas_Object *grid;

   const char *face = name;
   if (!face)
     face = "Mono";

   EINA_LIST_FOREACH(pd->grids, item, grid)
     {
        evas_object_textgrid_font_set(grid, face, size * elm_config_scale_get());
     }
   if (pd->font_name)
     eina_stringshare_del((char *)pd->font_name);
   pd->font_name = eina_stringshare_add(face);
   pd->font_size = size;
}

EOLIAN static void
_elm_code_widget_font_get(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd,
                          const char **name, Evas_Font_Size *size)
{
   if (name)
     *name = strdup((const char *)pd->font_name);
   if (size)
     *size = pd->font_size;
}

EOLIAN static unsigned int
_elm_code_widget_columns_get(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd)
{
   return pd->col_count;
}

EOLIAN static void
_elm_code_widget_code_set(Eo *obj, Elm_Code_Widget_Data *pd, Elm_Code *code)
{
   EO_CONSTRUCTOR_CHECK_RETURN(obj);

   pd->code = code;

   code->widgets = eina_list_append(code->widgets, obj);
}

EOLIAN static Elm_Code *
_elm_code_widget_code_get(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd)
{
   return pd->code;
}

EOLIAN static void
_elm_code_widget_gravity_set(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd, double x, double y)
{
   pd->gravity_x = x;
   pd->gravity_y = y;
}

EOLIAN static void
_elm_code_widget_gravity_get(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd, double *x, double *y)
{
   *x = pd->gravity_x;
   *y = pd->gravity_y;
}

EOLIAN static void
_elm_code_widget_policy_set(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd, Elm_Scroller_Policy policy_h, Elm_Scroller_Policy policy_v)
{
   elm_scroller_policy_set(pd->scroller, policy_h, policy_v);
}

EOLIAN static void
_elm_code_widget_policy_get(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd, Elm_Scroller_Policy *policy_h, Elm_Scroller_Policy *policy_v)
{
   elm_scroller_policy_get(pd->scroller, policy_h, policy_v);
}

EOLIAN static void
_elm_code_widget_tabstop_set(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd, unsigned int tabstop)
{
   pd->tabstop = tabstop;
   _elm_code_widget_fill(obj);
}

EOLIAN static unsigned int
_elm_code_widget_tabstop_get(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd)
{
   return pd->tabstop;
}

EOLIAN static void
_elm_code_widget_editable_set(Eo *obj, Elm_Code_Widget_Data *pd, Eina_Bool editable)
{
   pd->editable = editable;
   elm_object_focus_allow_set(obj, editable);
}

EOLIAN static Eina_Bool
_elm_code_widget_editable_get(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd)
{
   return pd->editable;
}

EOLIAN static void
_elm_code_widget_line_numbers_set(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd, Eina_Bool line_numbers)
{
   pd->show_line_numbers = line_numbers;
}

EOLIAN static Eina_Bool
_elm_code_widget_line_numbers_get(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd)
{
   return pd->show_line_numbers;
}

EOLIAN static void
_elm_code_widget_line_width_marker_set(Eo *obj, Elm_Code_Widget_Data *pd, unsigned int col)
{
   pd->line_width_marker = col;
   _elm_code_widget_fill(obj);
}

EOLIAN static unsigned int
_elm_code_widget_line_width_marker_get(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd)
{
   return pd->line_width_marker;
}

EOLIAN static void
_elm_code_widget_show_whitespace_set(Eo *obj, Elm_Code_Widget_Data *pd, Eina_Bool show)
{
   pd->show_whitespace = show;
   _elm_code_widget_fill(obj);
}

EOLIAN static Eina_Bool
_elm_code_widget_show_whitespace_get(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd)
{
   return pd->show_whitespace;
}

EOLIAN static void
_elm_code_widget_tab_inserts_spaces_set(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd,
                                        Eina_Bool spaces)
{
   pd->tab_inserts_spaces = spaces;
}

EOLIAN static Eina_Bool
_elm_code_widget_tab_inserts_spaces_get(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd)
{
   return pd->tab_inserts_spaces;
}

EOLIAN static void
_elm_code_widget_cursor_position_set(Eo *obj, Elm_Code_Widget_Data *pd, unsigned int col, unsigned int line)
{
   _elm_code_widget_cursor_move(obj, pd, col, line, EINA_FALSE);
}

EOLIAN static void
_elm_code_widget_cursor_position_get(Eo *obj EINA_UNUSED, Elm_Code_Widget_Data *pd, unsigned int *col, unsigned int *line)
{
   *col = pd->cursor_col;
   *line = pd->cursor_line;
}

EOLIAN static void
_elm_code_widget_evas_object_smart_add(Eo *obj, Elm_Code_Widget_Data *pd)
{
   Evas_Object *background, *gridrows, *scroller;

   evas_obj_smart_add(eo_super(obj, ELM_CODE_WIDGET_CLASS));
   elm_object_focus_allow_set(obj, EINA_TRUE);

   elm_layout_file_set(obj, PACKAGE_DATA_DIR "/themes/elm_code.edj", "elm_code/layout/default");

   scroller = elm_scroller_add(obj);
   evas_object_size_hint_weight_set(scroller, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
   evas_object_size_hint_align_set(scroller, EVAS_HINT_FILL, EVAS_HINT_FILL);
   evas_object_show(scroller);
   elm_layout_content_set(obj, "elm.swallow.content", scroller);
   elm_object_focus_allow_set(scroller, EINA_FALSE);
   pd->scroller = scroller;

   background = elm_bg_add(scroller);
   evas_object_color_set(background, 145, 145, 145, 255);
   evas_object_size_hint_weight_set(background, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
   evas_object_size_hint_align_set(background, EVAS_HINT_FILL, EVAS_HINT_FILL);
   evas_object_show(background);
   elm_object_part_content_set(scroller, "elm.swallow.background", background);

   gridrows = elm_box_add(scroller);
   evas_object_size_hint_weight_set(gridrows, EVAS_HINT_EXPAND, 0.0);
   evas_object_size_hint_align_set(gridrows, EVAS_HINT_FILL, 0.0);
   elm_object_content_set(scroller, gridrows);
   pd->gridbox = gridrows;

   evas_object_event_callback_add(obj, EVAS_CALLBACK_RESIZE, _elm_code_widget_resize_cb, obj);
   evas_object_event_callback_add(obj, EVAS_CALLBACK_KEY_DOWN, _elm_code_widget_key_down_cb, obj);

   evas_object_smart_callback_add(obj, "focused", _elm_code_widget_focused_event_cb, obj);
   evas_object_smart_callback_add(obj, "unfocused", _elm_code_widget_unfocused_event_cb, obj);
   evas_object_smart_callback_add(scroller, "scroll", _elm_code_widget_scroll_event_cb, obj);

   eo_event_callback_add(obj, &ELM_CODE_EVENT_LINE_LOAD_DONE, _elm_code_widget_line_cb, obj);
   eo_event_callback_add(obj, &ELM_CODE_EVENT_FILE_LOAD_DONE, _elm_code_widget_file_cb, obj);
   eo_event_callback_add(obj, ELM_OBJ_CODE_WIDGET_EVENT_SELECTION_CHANGED, _elm_code_widget_selection_cb, obj);
   eo_event_callback_add(obj, ELM_OBJ_CODE_WIDGET_EVENT_SELECTION_CLEARED, _elm_code_widget_selection_clear_cb, obj);
}

#include "elm_code_widget_text.c"
#include "elm_code_widget_undo.c"
#include "elm_code_widget.eo.c"