Patrick Georgi | 3b77b72 | 2011-07-07 15:41:53 +0200 | [diff] [blame] | 1 | /* Public Domain Curses */ |
| 2 | |
| 3 | #include <curspriv.h> |
| 4 | |
| 5 | RCSID("$Id: deleteln.c,v 1.35 2008/07/13 16:08:18 wmcbrine Exp $") |
| 6 | |
| 7 | /*man-start************************************************************** |
| 8 | |
| 9 | Name: deleteln |
| 10 | |
| 11 | Synopsis: |
| 12 | int deleteln(void); |
| 13 | int wdeleteln(WINDOW *win); |
| 14 | int insdelln(int n); |
| 15 | int winsdelln(WINDOW *win, int n); |
| 16 | int insertln(void); |
| 17 | int winsertln(WINDOW *win); |
| 18 | |
| 19 | int mvdeleteln(int y, int x); |
| 20 | int mvwdeleteln(WINDOW *win, int y, int x); |
| 21 | int mvinsertln(int y, int x); |
| 22 | int mvwinsertln(WINDOW *win, int y, int x); |
| 23 | |
| 24 | Description: |
| 25 | With the deleteln() and wdeleteln() functions, the line under |
| 26 | the cursor in the window is deleted. All lines below the |
| 27 | current line are moved up one line. The bottom line of the |
| 28 | window is cleared. The cursor position does not change. |
| 29 | |
Stefan Reinauer | e11835e | 2011-10-31 12:54:00 -0700 | [diff] [blame] | 30 | With the insertln() and winsertn() functions, a blank line is |
Patrick Georgi | 3b77b72 | 2011-07-07 15:41:53 +0200 | [diff] [blame] | 31 | inserted above the current line and the bottom line is lost. |
| 32 | |
Stefan Reinauer | e11835e | 2011-10-31 12:54:00 -0700 | [diff] [blame] | 33 | mvdeleteln(), mvwdeleteln(), mvinsertln() and mvwinsertln() |
Patrick Georgi | 3b77b72 | 2011-07-07 15:41:53 +0200 | [diff] [blame] | 34 | allow moving the cursor and inserting/deleting in one call. |
| 35 | |
| 36 | Return Value: |
| 37 | All functions return OK on success and ERR on error. |
| 38 | |
| 39 | Portability X/Open BSD SYS V |
| 40 | deleteln Y Y Y |
| 41 | wdeleteln Y Y Y |
| 42 | mvdeleteln - - - |
| 43 | mvwdeleteln - - - |
| 44 | insdelln Y - 4.0 |
| 45 | winsdelln Y - 4.0 |
| 46 | insertln Y Y Y |
| 47 | winsertln Y Y Y |
| 48 | mvinsertln - - - |
| 49 | mvwinsertln - - - |
| 50 | |
| 51 | **man-end****************************************************************/ |
| 52 | |
| 53 | int wdeleteln(WINDOW *win) |
| 54 | { |
| 55 | chtype blank, *temp, *ptr; |
| 56 | int y; |
| 57 | |
| 58 | PDC_LOG(("wdeleteln() - called\n")); |
| 59 | |
| 60 | if (!win) |
| 61 | return ERR; |
| 62 | |
| 63 | /* wrs (4/10/93) account for window background */ |
| 64 | |
| 65 | blank = win->_bkgd; |
| 66 | |
| 67 | temp = win->_y[win->_cury]; |
| 68 | |
| 69 | for (y = win->_cury; y < win->_bmarg; y++) |
| 70 | { |
| 71 | win->_y[y] = win->_y[y + 1]; |
| 72 | win->_firstch[y] = 0; |
| 73 | win->_lastch[y] = win->_maxx - 1; |
| 74 | } |
| 75 | |
| 76 | for (ptr = temp; (ptr - temp < win->_maxx); ptr++) |
| 77 | *ptr = blank; /* make a blank line */ |
| 78 | |
Stefan Reinauer | e11835e | 2011-10-31 12:54:00 -0700 | [diff] [blame] | 79 | if (win->_cury <= win->_bmarg) |
Patrick Georgi | 3b77b72 | 2011-07-07 15:41:53 +0200 | [diff] [blame] | 80 | { |
| 81 | win->_firstch[win->_bmarg] = 0; |
| 82 | win->_lastch[win->_bmarg] = win->_maxx - 1; |
| 83 | win->_y[win->_bmarg] = temp; |
| 84 | } |
| 85 | |
| 86 | return OK; |
| 87 | } |
| 88 | |
| 89 | int deleteln(void) |
| 90 | { |
| 91 | PDC_LOG(("deleteln() - called\n")); |
| 92 | |
| 93 | return wdeleteln(stdscr); |
| 94 | } |
| 95 | |
| 96 | int mvdeleteln(int y, int x) |
| 97 | { |
| 98 | PDC_LOG(("mvdeleteln() - called\n")); |
| 99 | |
| 100 | if (move(y, x) == ERR) |
| 101 | return ERR; |
| 102 | |
| 103 | return wdeleteln(stdscr); |
| 104 | } |
| 105 | |
| 106 | int mvwdeleteln(WINDOW *win, int y, int x) |
| 107 | { |
| 108 | PDC_LOG(("mvwdeleteln() - called\n")); |
| 109 | |
| 110 | if (wmove(win, y, x) == ERR) |
| 111 | return ERR; |
| 112 | |
| 113 | return wdeleteln(win); |
| 114 | } |
| 115 | |
| 116 | int winsdelln(WINDOW *win, int n) |
| 117 | { |
| 118 | int i; |
| 119 | |
| 120 | PDC_LOG(("winsdelln() - called\n")); |
| 121 | |
| 122 | if (!win) |
| 123 | return ERR; |
| 124 | |
| 125 | if (n > 0) |
| 126 | { |
| 127 | for (i = 0; i < n; i++) |
| 128 | if (winsertln(win) == ERR) |
| 129 | return ERR; |
| 130 | } |
| 131 | else if (n < 0) |
| 132 | { |
| 133 | n = -n; |
| 134 | for (i = 0; i < n; i++) |
| 135 | if (wdeleteln(win) == ERR) |
| 136 | return ERR; |
| 137 | } |
| 138 | |
| 139 | return OK; |
| 140 | } |
| 141 | |
| 142 | int insdelln(int n) |
| 143 | { |
| 144 | PDC_LOG(("insdelln() - called\n")); |
| 145 | |
| 146 | return winsdelln(stdscr, n); |
| 147 | } |
| 148 | |
| 149 | int winsertln(WINDOW *win) |
| 150 | { |
| 151 | chtype blank, *temp, *end; |
| 152 | int y; |
| 153 | |
| 154 | PDC_LOG(("winsertln() - called\n")); |
| 155 | |
| 156 | if (!win) |
| 157 | return ERR; |
| 158 | |
| 159 | /* wrs (4/10/93) account for window background */ |
| 160 | |
| 161 | blank = win->_bkgd; |
| 162 | |
| 163 | temp = win->_y[win->_maxy - 1]; |
| 164 | |
| 165 | for (y = win->_maxy - 1; y > win->_cury; y--) |
| 166 | { |
| 167 | win->_y[y] = win->_y[y - 1]; |
| 168 | win->_firstch[y] = 0; |
| 169 | win->_lastch[y] = win->_maxx - 1; |
| 170 | } |
| 171 | |
| 172 | win->_y[win->_cury] = temp; |
| 173 | |
| 174 | for (end = &temp[win->_maxx - 1]; temp <= end; temp++) |
| 175 | *temp = blank; |
| 176 | |
| 177 | win->_firstch[win->_cury] = 0; |
| 178 | win->_lastch[win->_cury] = win->_maxx - 1; |
| 179 | |
| 180 | return OK; |
| 181 | } |
| 182 | |
| 183 | int insertln(void) |
| 184 | { |
| 185 | PDC_LOG(("insertln() - called\n")); |
| 186 | |
| 187 | return winsertln(stdscr); |
| 188 | } |
| 189 | |
| 190 | int mvinsertln(int y, int x) |
| 191 | { |
| 192 | PDC_LOG(("mvinsertln() - called\n")); |
| 193 | |
| 194 | if (move(y, x) == ERR) |
| 195 | return ERR; |
| 196 | |
| 197 | return winsertln(stdscr); |
| 198 | } |
| 199 | |
| 200 | int mvwinsertln(WINDOW *win, int y, int x) |
| 201 | { |
| 202 | PDC_LOG(("mvwinsertln() - called\n")); |
| 203 | |
| 204 | if (wmove(win, y, x) == ERR) |
| 205 | return ERR; |
| 206 | |
| 207 | return winsertln(win); |
| 208 | } |