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