GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libform/frm_data.c Lines: 0 34 0.0 %
Date: 2017-11-13 Branches: 0 42 0.0 %

Line Branch Exec Source
1
/*	$OpenBSD: frm_data.c,v 1.8 2015/01/23 22:48:51 krw Exp $	*/
2
/****************************************************************************
3
 * Copyright (c) 1998-2004,2005 Free Software Foundation, Inc.              *
4
 *                                                                          *
5
 * Permission is hereby granted, free of charge, to any person obtaining a  *
6
 * copy of this software and associated documentation files (the            *
7
 * "Software"), to deal in the Software without restriction, including      *
8
 * without limitation the rights to use, copy, modify, merge, publish,      *
9
 * distribute, distribute with modifications, sublicense, and/or sell       *
10
 * copies of the Software, and to permit persons to whom the Software is    *
11
 * furnished to do so, subject to the following conditions:                 *
12
 *                                                                          *
13
 * The above copyright notice and this permission notice shall be included  *
14
 * in all copies or substantial portions of the Software.                   *
15
 *                                                                          *
16
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
17
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
18
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
19
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
20
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
21
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
22
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
23
 *                                                                          *
24
 * Except as contained in this notice, the name(s) of the above copyright   *
25
 * holders shall not be used in advertising or otherwise to promote the     *
26
 * sale, use or other dealings in this Software without prior written       *
27
 * authorization.                                                           *
28
 ****************************************************************************/
29
30
/****************************************************************************
31
 *   Author:  Juergen Pfeifer, 1995,1997                                    *
32
 ****************************************************************************/
33
34
#include "form.priv.h"
35
36
MODULE_ID("$Id: frm_data.c,v 1.8 2015/01/23 22:48:51 krw Exp $")
37
38
/*---------------------------------------------------------------------------
39
|   Facility      :  libnform
40
|   Function      :  bool data_behind(const FORM *form)
41
|
42
|   Description   :  Check for off-screen data behind. This is nearly trivial
43
|                    because the beginning of a field is fixed.
44
|
45
|   Return Values :  TRUE   - there are off-screen data behind
46
|                    FALSE  - there are no off-screen data behind
47
+--------------------------------------------------------------------------*/
48
NCURSES_EXPORT(bool)
49
data_behind(const FORM *form)
50
{
51
  bool result = FALSE;
52
53
  T((T_CALLED("data_behind(%p)"), form));
54
55
  if (form && (form->status & _POSTED) && form->current)
56
    {
57
      FIELD *field;
58
59
      field = form->current;
60
      if (!Single_Line_Field(field))
61
	{
62
	  result = (form->toprow == 0) ? FALSE : TRUE;
63
	}
64
      else
65
	{
66
	  result = (form->begincol == 0) ? FALSE : TRUE;
67
	}
68
    }
69
  returnBool(result);
70
}
71
72
/*---------------------------------------------------------------------------
73
|   Facility      :  libnform
74
|   Function      :  static char * Only_Padding(
75
|                                    WINDOW *w,
76
|                                    int len,
77
|                                    int pad)
78
|
79
|   Description   :  Test if 'length' cells starting at the current position
80
|                    contain a padding character.
81
|
82
|   Return Values :  true if only padding cells are found
83
+--------------------------------------------------------------------------*/
84
NCURSES_INLINE static bool
85
Only_Padding(WINDOW *w, int len, int pad)
86
{
87
  bool result = TRUE;
88
  int y, x, j;
89
  FIELD_CELL cell;
90
91
  getyx(w, y, x);
92
  for (j = 0; j < len; ++j)
93
    {
94
      if (wmove(w, y, x + j) != ERR)
95
	{
96
#if USE_WIDEC_SUPPORT
97
	  if (win_wch(w, &cell) != ERR)
98
	    {
99
	      if ((chtype)CharOf(cell) != ChCharOf(pad)
100
		  || cell.chars[1] != 0)
101
		{
102
		  result = FALSE;
103
		  break;
104
		}
105
	    }
106
#else
107
	  cell = winch(w);
108
	  if (ChCharOf(cell) != ChCharOf(pad))
109
	    {
110
	      result = FALSE;
111
	      break;
112
	    }
113
#endif
114
	}
115
      else
116
	{
117
	  /* if an error, return true: no non-padding text found */
118
	  break;
119
	}
120
    }
121
  /* no need to reset the cursor position; caller does this */
122
  return result;
123
}
124
125
/*---------------------------------------------------------------------------
126
|   Facility      :  libnform
127
|   Function      :  bool data_ahead(const FORM *form)
128
|
129
|   Description   :  Check for off-screen data ahead. This is more difficult
130
|                    because a dynamic field has a variable end.
131
|
132
|   Return Values :  TRUE   - there are off-screen data ahead
133
|                    FALSE  - there are no off-screen data ahead
134
+--------------------------------------------------------------------------*/
135
NCURSES_EXPORT(bool)
136
data_ahead(const FORM *form)
137
{
138
  bool result = FALSE;
139
140
  T((T_CALLED("data_ahead(%p)"), form));
141
142
  if (form && (form->status & _POSTED) && form->current)
143
    {
144
      FIELD *field;
145
      bool cursor_moved = FALSE;
146
      int pos;
147
148
      field = form->current;
149
      assert(form->w);
150
151
      if (Single_Line_Field(field))
152
	{
153
	  int check_len;
154
155
	  pos = form->begincol + field->cols;
156
	  while (pos < field->dcols)
157
	    {
158
	      check_len = field->dcols - pos;
159
	      if (check_len >= field->cols)
160
		check_len = field->cols;
161
	      cursor_moved = TRUE;
162
	      wmove(form->w, 0, pos);
163
	      if (Only_Padding(form->w, check_len, field->pad))
164
		pos += field->cols;
165
	      else
166
		{
167
		  result = TRUE;
168
		  break;
169
		}
170
	    }
171
	}
172
      else
173
	{
174
	  pos = form->toprow + field->rows;
175
	  while (pos < field->drows)
176
	    {
177
	      cursor_moved = TRUE;
178
	      wmove(form->w, pos, 0);
179
	      pos++;
180
	      if (!Only_Padding(form->w, field->cols, field->pad))
181
		{
182
		  result = TRUE;
183
		  break;
184
		}
185
	    }
186
	}
187
188
      if (cursor_moved)
189
	wmove(form->w, form->currow, form->curcol);
190
    }
191
  returnBool(result);
192
}
193
194
/* frm_data.c ends here */