diff options
Diffstat (limited to 'gnu/lib/libodialog/fselect.c')
| -rw-r--r-- | gnu/lib/libodialog/fselect.c | 402 |
1 files changed, 402 insertions, 0 deletions
diff --git a/gnu/lib/libodialog/fselect.c b/gnu/lib/libodialog/fselect.c new file mode 100644 index 0000000..6669edc --- /dev/null +++ b/gnu/lib/libodialog/fselect.c @@ -0,0 +1,402 @@ +/* + * program: fselect.c + * author: Marc van Kempen (wmbfmk@urc.tue.nl) + * Desc: File selection routine + * + * Copyright (c) 1995, Marc van Kempen + * + * All rights reserved. + * + * This software may be used, modified, copied, distributed, and + * sold, in both source and binary form provided that the above + * copyright and these terms are retained, verbatim, as the first + * lines of this file. Under no circumstances is the author + * responsible for the proper functioning of this software, nor does + * the author assume any responsibility for damages incurred with + * its use. + * + */ + +#include <stdlib.h> +#include <unistd.h> +#include <sys/param.h> +#include <dialog.h> +#include "ui_objects.h" +#include "dir.h" +#include "dialog.priv.h" + +/* + * Local prototypes + */ + +char *dialog_dfselect(char *dir, char *fmask, int is_fselect); + +/* + * Functions + */ + +void +get_directories(DirList *d, int n, char ***names, int *nd) +/* + * Desc: return the directorienames in <dir> as an array in + * <names>, the # of entries in <nd>, memory allocated + * to *names should be freed when done with it. + */ +{ + int i; + + /* count the directories, which are in front */ + *nd = 0; + while ((*nd < n) && (S_ISDIR(d[*nd].filestatus.st_mode))) (*nd)++; + *names = (char **) malloc( *nd * sizeof(char *) ); + for (i=0; i<*nd; i++) { + (*names)[i] = (char *) malloc( strlen(d[i].filename) + 1); + strcpy((*names)[i], d[i].filename); + } + + return; +} /* get_directories() */ + +void +get_filenames(DirList *d, int n, char ***names, int *nf) +/* + * Desc: return the filenames in <dir> as an arry in + * <names>, the # of entries in <nf>, memory allocated + * to *names should be freed when done. + */ +{ + int nd, i; + + /* the # of regular files is the total # of files - # of directories */ + /* count the # of directories */ + nd = 0; + while ((nd < n) && (S_ISDIR(d[nd].filestatus.st_mode))) nd++; + + *names = (char **) malloc( (n-nd) * sizeof(char *) ); + *nf = n - nd; + for (i=0; i<*nf; i++) { + (*names)[i] = (char *) malloc( strlen(d[i+nd].filename) + 1); + strcpy((*names)[i], d[i+nd].filename); + } + + return; +} /* get_filenames() */ + +void +FreeNames(char **names, int n) +/* + * Desc: free the space occupied by names + */ +{ + int i; + + /* free the space occupied by names */ + for (i=0; i<n; i++) { + free(names[i]); + } + free(names); + + return; +} /* FreeNames() */ + +int +dialog_dselect_old(void) +/* + * Desc: starting from the current directory, + * choose a new current directory + */ +{ + DirList *d = NULL; + char **names, old_dir[MAXPATHLEN]; + WINDOW *ds_win; + ButtonObj *okbut, *cancelbut; + ListObj *dirs_obj; + StringObj *dir_obj; + char o_dir[MAXPATHLEN]; + struct ComposeObj *obj = NULL; + int n, nd, okbutton, cancelbutton, + quit, cancel, ret; + + ds_win = newwin(LINES-8, COLS-30, 4, 15); + if (ds_win == NULL) { + fprintf(stderr, "\nnewwin(%d,%d,%d,%d) failed, maybe wrong dims\n", + LINES-8, COLS-30, 4, 15); + exit(1); + } + draw_box(ds_win, 0, 0, LINES-8, COLS-30, dialog_attr, border_attr); + wattrset(ds_win, dialog_attr); + mvwaddstr(ds_win, 0, (COLS-30)/2 - 9, " Directory Select "); + draw_shadow(stdscr, 4, 15, LINES-8, COLS-30); + display_helpline(ds_win, LINES-9, COLS-30); + + /* the Directory string input field */ + getcwd(o_dir, MAXPATHLEN); + dir_obj = NewStringObj(ds_win, "Directory:", o_dir, 1, 2, COLS-34, MAXPATHLEN-1); + AddObj(&obj, STRINGOBJ, (void *) dir_obj); + + /* the list of directories */ + get_dir(".", "*", &d, &n); + get_directories(d, n, &names, &nd); + dirs_obj = NewListObj(ds_win, "Directories:", names, o_dir, 5, 2, + LINES-15, COLS-48, nd); + AddObj(&obj, LISTOBJ, (void *) dirs_obj); + + /* the Ok-button */ + okbutton = FALSE; + okbut = NewButtonObj(ds_win, "Continue", &okbutton, 7, COLS-45); + AddObj(&obj, BUTTONOBJ, (void *) okbut); + + /* the Cancel-button */ + cancelbutton = FALSE; + cancelbut = NewButtonObj(ds_win, "Return", &cancelbutton, 11, COLS-44); + AddObj(&obj, BUTTONOBJ, (void *) cancelbut); + + quit = FALSE; + cancel = FALSE; + strcpy(old_dir, o_dir); + while (!quit) { + ret = PollObj(&obj); + switch(ret) { + case SEL_BUTTON: + if (okbutton) { + quit = TRUE; + } + if (cancelbutton) { + quit = TRUE; + cancel = TRUE; + } + break; + case SEL_CR: + if (strcmp(old_dir, o_dir)) { + /* the directory was changed, cd into it */ + if (chdir(o_dir)) { + dialog_notify("Could not change into directory"); + strcpy(o_dir, old_dir); + } else { + getcwd(o_dir, MAXPATHLEN); + strcpy(old_dir, o_dir); + } + RefreshStringObj(dir_obj); + } + get_dir(".", "*", &d, &n); + FreeNames(names, nd); + get_directories(d, n, &names, &nd); + UpdateListObj(dirs_obj, names, nd); + if (((obj->prev)->obj == (void *) dirs_obj)) { + obj=obj->prev; + } + break; + case SEL_ESC: + quit = TRUE; + cancel = TRUE; + break; + case KEY_F(1): + display_helpfile(); + break; + } + } + + FreeNames(names, nd); + DelObj(obj); + delwin(ds_win); + + return(cancel); + +} /* dialog_dselect() */ + +int +dialog_dselect(char *dir, char *fmask) +/* + * Desc: Choose a directory + */ +{ + if (dialog_dfselect(dir, fmask, FALSE)) { + return(FALSE); /* esc or cancel was pressed */ + } else { + return(TRUE); /* directory was selected */ + } +} /* dialog_dselect() */ + +char * +dialog_fselect(char *dir, char *fmask) +/* + * Desc: Choose a file from a directory + */ +{ + return(dialog_dfselect(dir, fmask, TRUE)); +} /* dialog_fselect() */ + +char * +dialog_dfselect(char *dir, char *fmask, int is_fselect) +/* + * Desc: choose a file from the directory <dir>, which + * initially display files with the mask <filemask> + * pre: <dir> is the initial directory + * only files corresponding to the mask <fmask> are displayed + * post: returns NULL if no file was selected + * else returns pointer to filename, space is allocated, should + * be freed after use. + */ +{ + DirList *d = NULL; + char msg[512]; + char **fnames, **dnames, *ret_name; + WINDOW *fs_win; + int n, nd, nf, ret; + StringObj *fm_obj, *dir_obj, *sel_obj; + char o_fm[255], o_dir[MAXPATHLEN], o_sel[MAXPATHLEN]; + char old_fmask[255], old_dir[MAXPATHLEN]; + ListObj *dirs_obj, *files_obj; + struct ComposeObj *obj = NULL, *o; + int quit, cancel; + ButtonObj *okbut_obj, *canbut_obj; + int ok_button, cancel_button; + + if (chdir(dir)) { + sprintf(msg, "Could not move into specified directory: %s", dir); + dialog_notify(msg); + return(NULL); + } + getcwd(o_dir, MAXPATHLEN); + + /* setup the fileselect-window and initialize its components */ + fs_win = newwin(LINES-2, COLS-20, 1, 10); + if (fs_win == NULL) { + endwin(); + fprintf(stderr, "\nnewwin(%d,%d,%d,%d) failed, maybe wrong dims\n", + LINES-2, COLS-20, 2, 10); + exit(1); + } + draw_box(fs_win, 0, 0, LINES-2, COLS-20, dialog_attr, border_attr); + wattrset(fs_win, dialog_attr); + if (is_fselect) { + mvwaddstr(fs_win, 0, (COLS-20)/2 - 7, " File Select "); + } else { + mvwaddstr(fs_win, 0, (COLS-20)/2 - 9, " Directory Select "); + } + draw_shadow(stdscr, 1, 10, LINES-2, COLS-20); + display_helpline(fs_win, LINES-3, COLS-20); + + /* Filemask entry */ + strcpy(o_fm, fmask); + fm_obj = NewStringObj(fs_win, "Filemask:", o_fm, 1, 2, 19, 255); + AddObj(&obj, STRINGOBJ, (void *) fm_obj); + + /* Directory entry */ + dir_obj = NewStringObj(fs_win, "Directory:", o_dir, 1, 22, COLS-44, 255); + AddObj(&obj, STRINGOBJ, (void *) dir_obj); + + /* Directory list */ + get_dir(".", fmask, &d, &n); /* read the entire directory */ + get_directories(d, n, &dnames, &nd); /* extract the dir-entries */ + if (is_fselect) { + dirs_obj = NewListObj(fs_win, "Directories:", dnames, o_dir, 5, 2, + LINES-16, (COLS-20)/2-2, nd); + } else { + dirs_obj = NewListObj(fs_win, "Directories:", dnames, o_dir, 5, 2, + LINES-12, (COLS-20)/2-2, nd); + } + AddObj(&obj, LISTOBJ, (void *) dirs_obj); + + /* Filenames list */ + get_filenames(d, n, &fnames, &nf); /* extract the filenames */ + if (is_fselect) { + files_obj = NewListObj(fs_win, "Files:", fnames, o_sel, 5, (COLS-20)/2+1, + LINES-16, (COLS-20)/2-3, nf); + } else { + files_obj = NewListObj(fs_win, "Files:", fnames, o_sel, 5, (COLS-20)/2+1, + LINES-12, (COLS-20)/2-3, nf); + } + AddObj(&obj, LISTOBJ, (void *) files_obj); + + if (is_fselect) { + /* Selection entry */ + o_sel[0] = '\0'; + sel_obj = NewStringObj(fs_win, "Selection:", o_sel, LINES-10, 2, COLS-24, 255); + AddObj(&obj, STRINGOBJ, (void *) sel_obj); + } + + /* Ok button */ + ok_button = FALSE; + okbut_obj = NewButtonObj(fs_win, "Ok", &ok_button, LINES-6, 20); + AddObj(&obj, BUTTONOBJ, (void *) okbut_obj); + + /* Cancel button */ + cancel_button = FALSE; + canbut_obj = NewButtonObj(fs_win, "Cancel", &cancel_button, LINES-6, 30); + AddObj(&obj, BUTTONOBJ, (void *) canbut_obj); + + /* Make sure all objects on the window are drawn */ + wrefresh(fs_win); + keypad(fs_win, TRUE); + + /* Start the reading */ + o = obj; + strcpy(old_fmask, o_fm); + strcpy(old_dir, o_dir); + quit = FALSE; + cancel = FALSE; + while (!quit) { + ret = PollObj(&o); + switch(ret) { + case SEL_CR: + if (strcmp(old_fmask, o_fm) || strcmp(old_dir, o_dir)) { + /* reread directory and update the listobjects */ + if (strcmp(old_dir, o_dir)) { /* dir entry was changed */ + if (chdir(o_dir)) { + dialog_notify("Could not change into directory"); + strcpy(o_dir, old_dir); + } else { + getcwd(o_dir, MAXPATHLEN); + strcpy(old_dir, o_dir); + } + RefreshStringObj(dir_obj); + } else { /* fmask entry was changed */ + strcpy(old_fmask, o_fm); + } + get_dir(".", o_fm, &d, &n); + FreeNames(dnames, nd); + get_directories(d, n, &dnames, &nd); + UpdateListObj(dirs_obj, dnames, nd); + FreeNames(fnames, nf); + get_filenames(d, n, &fnames, &nf); + UpdateListObj(files_obj, fnames, nf); + if (((o->prev)->obj == (void *) dirs_obj)) { + o=o->prev; + } + } + break; + case SEL_BUTTON: + /* check which button was pressed */ + if (ok_button) { + quit = TRUE; + } + if (cancel_button) { + quit = TRUE; + cancel = TRUE; + } + break; + case SEL_ESC: + quit = TRUE; + cancel = TRUE; + break; + case KEY_F(1): + case '?': + display_helpfile(); + break; + } + } + DelObj(obj); + FreeNames(dnames, nd); + FreeNames(fnames, nf); + delwin(fs_win); + + if (cancel || (strlen(o_sel) == 0)) { + return(NULL); + } else { + ret_name = (char *) malloc( strlen(o_sel) + 1 ); + strcpy(ret_name, o_sel); + return(ret_name); + } +} /* dialog_fselect() */ + |
