row.c File Reference

#include "editor.h"

Include dependency graph for row.c:

Go to the source code of this file.

Functions
ME_Row *	row_next (ME_Row *row)
ME_Row *	row_next_all_paras (ME_Row *row)
ME_Row *	row_prev_all_paras (ME_Row *row)
ME_Run *	row_first_run (ME_Row *row)
ME_Run *	row_next_run (ME_Row *row, ME_Run *run)
ME_Row *	row_from_cursor (ME_Cursor *cursor)
void	row_first_cursor (ME_Row *row, ME_Cursor *cursor)
void	row_end_cursor (ME_Row *row, ME_Cursor *cursor, BOOL include_eop)
ME_Paragraph *	row_para (ME_Row *row)
ME_Row *	row_from_row_number (ME_TextEditor *editor, int row_num)
int	row_number_from_char_ofs (ME_TextEditor *editor, int ofs)

Function Documentation

row_end_cursor()

void row_end_cursor	(	ME_Row *	row,
		ME_Cursor *	cursor,
		BOOL	include_eop
	)

Definition at line 92 of file row.c.

{
    ME_DisplayItem *item, *run;
 
    item = ME_FindItemFwd( row_get_di( row ), diStartRowOrParagraphOrEnd );
    run = ME_FindItemBack( item, diRun );
    cursor->run = &run->member.run;
    cursor->para = cursor->run->para;
    cursor->nOffset = (item->type == diStartRow || include_eop) ? cursor->run->len : 0;
}

Referenced by editor_handle_message(), ME_ArrowEnd(), ME_ExtendAnchorSelection(), ME_SelectByType(), and row_number_from_char_ofs().

row_first_cursor()

void row_first_cursor	(	ME_Row *	row,
		ME_Cursor *	cursor
	)

Definition at line 82 of file row.c.

{
    ME_DisplayItem *item;
 
    item = ME_FindItemFwd( row_get_di( row ), diRun );
    cursor->run = &item->member.run;
    cursor->para = cursor->run->para;
    cursor->nOffset = 0;
}

Referenced by editor_handle_message(), ME_ArrowHome(), ME_ExtendAnchorSelection(), ME_SelectByType(), and row_para().

row_first_run()

ME_Run * row_first_run

(

ME_Row *

row

)

Definition at line 54 of file row.c.

{
    ME_DisplayItem *item;
 
    item = ME_FindItemFwd( row_get_di( row ), diRunOrStartRow );
    assert( item->type == diRun );
    return &item->member.run;
}

Referenced by row_cursor().

row_from_cursor()

ME_Row * row_from_cursor

(

ME_Cursor *

cursor

)

Definition at line 74 of file row.c.

{
    ME_DisplayItem *item;
 
    item = ME_FindItemBack( run_get_di( cursor->run ), diStartRow );
    return &item->member.row;
}

Referenced by cursor_coords(), cursor_move_line(), draw_run(), editor_ensure_visible(), editor_handle_message(), ME_ArrowEnd(), ME_ArrowHome(), ME_ArrowPageDown(), ME_ArrowPageUp(), ME_ExtendAnchorSelection(), and ME_SelectByType().

row_from_row_number()

ME_Row * row_from_row_number	(	ME_TextEditor *	editor,
		int	row_num
	)

Definition at line 111 of file row.c.

{
    ME_Paragraph *para = editor_first_para( editor );
    ME_Row *row;
    int count = 0;
 
    while (para_next( para ) && count + para->nRows <= row_num)
    {
        count += para->nRows;
        para = para_next( para );
    }
    if (!para_next( para )) return NULL;
 
    for (row = para_first_row( para ); row && count < row_num; count++)
        row = row_next( row );
 
    return row;
}

Referenced by editor_handle_message().

row_next()

ME_Row * row_next

(

ME_Row *

row

)

Definition at line 27 of file row.c.

{
    ME_DisplayItem *item;
 
    item = ME_FindItemFwd( row_get_di( row ), diStartRowOrParagraphOrEnd );
    if (!item || item->type != diStartRow) return NULL;
    return &item->member.row;
}

Referenced by cursor_from_virtual_coords(), editor_handle_message(), row_from_row_number(), and row_number_from_char_ofs().

row_next_all_paras()

ME_Row * row_next_all_paras

(

ME_Row *

row

)

Definition at line 36 of file row.c.

{
    ME_DisplayItem *item;
 
    item = ME_FindItemFwd( row_get_di( row ), diStartRow );
    if (!item) return NULL;
    return &item->member.row;
}

Referenced by cursor_move_line(), and ME_ArrowPageDown().

row_next_run()

ME_Run * row_next_run	(	ME_Row *	row,
		ME_Run *	run
	)

Definition at line 63 of file row.c.

{
    ME_DisplayItem *item;
 
    assert( row == &ME_FindItemBack( run_get_di( run ), diStartRow )->member.row );
 
    item = ME_FindItemFwd( run_get_di( run ), diRunOrStartRow );
    if (!item || item->type == diStartRow) return NULL;
    return &item->member.run;
}

Referenced by editor_handle_message(), and row_cursor().

row_number_from_char_ofs()

int row_number_from_char_ofs	(	ME_TextEditor *	editor,
		int	ofs
	)

Definition at line 131 of file row.c.

{
    ME_Paragraph *para = editor_first_para( editor );
    ME_Row *row;
    ME_Cursor cursor;
    int row_num = 0;
 
    while (para_next( para ) && para_next( para )->nCharOfs <= ofs)
    {
        row_num += para->nRows;
        para = para_next( para );
    }
 
    if (para_next( para ))
    {
        for (row = para_first_row( para ); row; row = row_next( row ))
        {
            row_end_cursor( row, &cursor, TRUE );
            if (ME_GetCursorOfs( &cursor ) > ofs ) break;
            row_num++;
        }
    }
 
    return row_num;
}

Referenced by editor_handle_message().

row_para()

ME_Paragraph * row_para

(

ME_Row *

row

)

Definition at line 103 of file row.c.

{
    ME_Cursor cursor;
 
    row_first_cursor( row, &cursor );
    return cursor.para;
}

Referenced by cursor_move_line(), ME_ArrowPageDown(), and ME_ArrowPageUp().

row_prev_all_paras()

ME_Row * row_prev_all_paras

(

ME_Row *

row

)

Definition at line 45 of file row.c.

{
    ME_DisplayItem *item;
 
    item = ME_FindItemBack( row_get_di( row ), diStartRow );
    if (!item) return NULL;
    return &item->member.row;
}

Referenced by cursor_move_line(), and ME_ArrowPageUp().