1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326
|
/* $Id: fselect_ex.c,v 1.27 2016/12/04 15:22:16 tom Exp $ */
#include <cdk_test.h>
#ifdef HAVE_XCURSES
char *XCursesProgramName = "fselect_ex";
#endif
/*
* This program demonstrates the file selector and the viewer widget.
*/
static CDKSCREEN *cdkscreen = 0;
static char **myUserList = 0;
static int userSize;
typedef struct
{
int deleted; /* index in current list which is deleted */
int original; /* index in myUserList[] of deleted item */
int position; /* position before delete */
int topline; /* top-line before delete */
} UNDO;
static UNDO *myUndoList;
static int undoSize;
#define CB_PARAMS EObjectType cdktype GCC_UNUSED, void* object GCC_UNUSED, void* clientdata GCC_UNUSED, chtype key GCC_UNUSED
static void fill_undo (CDKFSELECT *widget, int deleted, char *data)
{
int top = getCDKScrollCurrentTop (widget->scrollField);
int item = getCDKFselectCurrentItem (widget);
int n;
myUndoList[undoSize].deleted = deleted;
myUndoList[undoSize].topline = top;
myUndoList[undoSize].original = -1;
myUndoList[undoSize].position = item;
for (n = 0; n < userSize; ++n)
{
if (!strcmp (myUserList[n], data))
{
myUndoList[undoSize].original = n;
break;
}
}
++undoSize;
}
static int do_delete (CB_PARAMS)
{
CDKFSELECT *widget = (CDKFSELECT *)clientdata;
int size;
char **list = getCDKFselectContents (widget, &size);
int result = FALSE;
if (size)
{
int save = getCDKScrollCurrentTop (widget->scrollField);
int first = getCDKFselectCurrentItem (widget);
int n;
fill_undo (widget, first, list[first]);
for (n = first; n < size; ++n)
list[n] = list[n + 1];
setCDKFselectContents (widget, (CDK_CSTRING2)list, size - 1);
setCDKScrollCurrentTop (widget->scrollField, save);
setCDKFselectCurrentItem (widget, first);
drawCDKFselect (widget, BorderOf (widget));
result = TRUE;
}
return result;
}
static int do_delete1 (CB_PARAMS)
{
CDKFSELECT *widget = (CDKFSELECT *)clientdata;
int size;
char **list = getCDKFselectContents (widget, &size);
int result = FALSE;
if (size)
{
int save = getCDKScrollCurrentTop (widget->scrollField);
int first = getCDKFselectCurrentItem (widget);
if (first-- > 0)
{
int n;
fill_undo (widget, first, list[first]);
for (n = first; n < size; ++n)
list[n] = list[n + 1];
setCDKFselectContents (widget, (CDK_CSTRING2)list, size - 1);
setCDKScrollCurrentTop (widget->scrollField, save);
setCDKFselectCurrentItem (widget, first);
drawCDKFselect (widget, BorderOf (widget));
result = TRUE;
}
}
return result;
}
static int do_help (CB_PARAMS)
{
static const char *message[] =
{
"File Selection tests:",
"",
"F1 = help (this message)",
"F2 = delete current item",
"F3 = delete previous item",
"F4 = reload all items",
"F5 = undo deletion",
0
};
popupLabel (cdkscreen,
(CDK_CSTRING2)message,
(int)CDKcountStrings ((CDK_CSTRING2)message));
return TRUE;
}
static int do_reload (CB_PARAMS)
{
int result = FALSE;
if (userSize)
{
CDKFSELECT *widget = (CDKFSELECT *)clientdata;
setCDKFselectContents (widget, (CDK_CSTRING2)myUserList, userSize);
setCDKFselectCurrentItem (widget, 0);
drawCDKFselect (widget, BorderOf (widget));
result = TRUE;
}
return result;
}
static int do_undo (CB_PARAMS)
{
int result = FALSE;
if (undoSize > 0)
{
CDKFSELECT *widget = (CDKFSELECT *)clientdata;
int size;
int n;
char **oldlist = getCDKFselectContents (widget, &size);
char **newlist = (char **)malloc ((size_t) (++size + 1) * sizeof (char *));
--undoSize;
newlist[size] = 0;
for (n = size - 1; n > myUndoList[undoSize].deleted; --n)
{
newlist[n] = copyChar (oldlist[n - 1]);
}
newlist[n--] = copyChar (myUserList[myUndoList[undoSize].original]);
while (n >= 0)
{
newlist[n] = copyChar (oldlist[n]);
--n;
}
setCDKFselectContents (widget, (CDK_CSTRING2)newlist, size);
setCDKScrollCurrentTop (widget->scrollField, myUndoList[undoSize].topline);
setCDKFselectCurrentItem (widget, myUndoList[undoSize].position);
drawCDKFselect (widget, BorderOf (widget));
free (newlist);
result = TRUE;
}
return result;
}
int main (int argc, char **argv)
{
/* *INDENT-EQLS* */
CDKVIEWER *example = 0;
CDKFSELECT *fSelect = 0;
const char *title = "<C>Pick\n<C>A\n<C>File";
const char *label = "File: ";
char **info = 0;
const char *button[5];
const char *mesg[4];
char *filename;
char vTitle[256];
char temp[256];
int selected, lines;
CDK_PARAMS params;
char *directory;
CDKparseParams (argc, argv, ¶ms, "d:" CDK_CLI_PARAMS);
directory = CDKparamString2 (¶ms, 'd', ".");
/* Create the viewer buttons. */
button[0] = "</5><OK><!5>";
button[1] = "</5><Cancel><!5>";
cdkscreen = initCDKScreen (NULL);
/* Start color. */
initCDKColor ();
/* Get the filename. */
fSelect = newCDKFselect (cdkscreen,
CDKparamValue (¶ms, 'X', CENTER),
CDKparamValue (¶ms, 'Y', CENTER),
CDKparamValue (¶ms, 'H', 20),
CDKparamValue (¶ms, 'W', 65),
title, label, A_NORMAL, '_', A_REVERSE,
"</5>", "</48>", "</N>", "</N>",
CDKparamValue (¶ms, 'N', TRUE),
CDKparamValue (¶ms, 'S', FALSE));
if (fSelect == 0)
{
destroyCDKScreen (cdkscreen);
endCDK ();
fprintf (stderr, "Cannot create widget\n");
ExitProgram (EXIT_FAILURE);
}
bindCDKObject (vFSELECT, fSelect, '?', do_help, NULL);
bindCDKObject (vFSELECT, fSelect, KEY_F1, do_help, NULL);
bindCDKObject (vFSELECT, fSelect, KEY_F2, do_delete, fSelect);
bindCDKObject (vFSELECT, fSelect, KEY_F3, do_delete1, fSelect);
bindCDKObject (vFSELECT, fSelect, KEY_F4, do_reload, fSelect);
bindCDKObject (vFSELECT, fSelect, KEY_F5, do_undo, fSelect);
/*
* Set the starting directory. This is not necessary because when
* the file selector starts it uses the present directory as a default.
*/
setCDKFselect (fSelect, directory, A_NORMAL, ' ', A_REVERSE,
"</5>", "</48>", "</N>", "</N>", ObjOf (fSelect)->box);
myUserList = copyCharList ((const char **)getCDKFselectContents (fSelect, &userSize));
myUndoList = (UNDO *) malloc ((size_t) userSize * sizeof (UNDO));
undoSize = 0;
/* Activate the file selector. */
filename = activateCDKFselect (fSelect, 0);
/* Check how the person exited from the widget. */
if (fSelect->exitType == vESCAPE_HIT)
{
/* Pop up a message for the user. */
mesg[0] = "<C>Escape hit. No file selected.";
mesg[1] = "";
mesg[2] = "<C>Press any key to continue.";
popupLabel (cdkscreen, (CDK_CSTRING2)mesg, 3);
/* Exit CDK. */
destroyCDKFselect (fSelect);
destroyCDKScreen (cdkscreen);
endCDK ();
ExitProgram (EXIT_SUCCESS);
}
/* Create the file viewer to view the file selected. */
example = newCDKViewer (cdkscreen, CENTER, CENTER, 20, -2,
(CDK_CSTRING2)button, 2, A_REVERSE, TRUE, FALSE);
/* Could we create the viewer widget? */
if (example == 0)
{
/* Exit CDK. */
destroyCDKFselect (fSelect);
destroyCDKScreen (cdkscreen);
endCDK ();
printf ("Can't seem to create viewer. Is the window too small?\n");
ExitProgram (EXIT_SUCCESS);
}
/* Open the file and read the contents. */
lines = CDKreadFile (filename, &info);
if (lines == -1)
{
filename = copyChar (filename);
destroyCDKFselect (fSelect);
destroyCDKScreen (cdkscreen);
endCDK ();
printf ("Could not open \"%s\"\n", filename);
ExitProgram (EXIT_FAILURE);
}
/* Set up the viewer title, and the contents to the widget. */
sprintf (vTitle, "<C></B/21>Filename:<!21></22>%20s<!22!B>", filename);
setCDKViewer (example, vTitle,
(CDK_CSTRING2)info, lines,
A_REVERSE, TRUE, TRUE, TRUE);
CDKfreeStrings (info);
/* Destroy the file selector widget. */
destroyCDKFselect (fSelect);
/* Activate the viewer widget. */
selected = activateCDKViewer (example, 0);
/* Check how the person exited from the widget. */
if (example->exitType == vESCAPE_HIT)
{
mesg[0] = "<C>Escape hit. No Button selected.";
mesg[1] = "";
mesg[2] = "<C>Press any key to continue.";
popupLabel (cdkscreen, (CDK_CSTRING2)mesg, 3);
}
else if (example->exitType == vNORMAL)
{
sprintf (temp, "<C>You selected button %d", selected);
mesg[0] = temp;
mesg[1] = "";
mesg[2] = "<C>Press any key to continue.";
popupLabel (cdkscreen, (CDK_CSTRING2)mesg, 3);
}
/* Clean up. */
destroyCDKViewer (example);
destroyCDKScreen (cdkscreen);
endCDK ();
ExitProgram (EXIT_SUCCESS);
}
|