// // "$Id$" // // Fl_File_Browser routines. // // Copyright 1999-2005 by Michael Sweet. // // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Library General Public // License as published by the Free Software Foundation; either // version 2 of the License, or (at your option) any later version. // // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // Library General Public License for more details. // // You should have received a copy of the GNU Library General Public // License along with this library; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 // USA. // // Please report all bugs and problems on the following page: // // http://www.fltk.org/str.php // // Contents: // // Fl_File_Browser::full_height() - Return the height of the list. // Fl_File_Browser::item_height() - Return the height of a list item. // Fl_File_Browser::item_width() - Return the width of a list item. // Fl_File_Browser::item_draw() - Draw a list item. // Fl_File_Browser::Fl_File_Browser() - Create a Fl_File_Browser widget. // Fl_File_Browser::load() - Load a directory into the browser. // Fl_File_Browser::filter() - Set the filename filter. // // // Include necessary header files... // #include #include #include #include #include #include "flstring.h" #ifdef __CYGWIN__ # include #elif defined(WIN32) # include # include // Apparently Borland C++ defines DIRECTORY in , which // interfers with the Fl_File_Icon enumeration of the same name. # ifdef DIRECTORY # undef DIRECTORY # endif // DIRECTORY #endif // __CYGWIN__ #ifdef __EMX__ # define INCL_DOS # define INCL_DOSMISC # include #endif // __EMX__ // CodeWarrior (__MWERKS__) gets its include paths confused, so we // temporarily disable this... #if defined(__APPLE__) && !defined(__MWERKS__) # include # include # include #endif // __APPLE__ && !__MWERKS__ // // FL_BLINE definition from "Fl_Browser.cxx"... // #define SELECTED 1 #define NOTDISPLAYED 2 struct FL_BLINE // data is in a linked list of these { FL_BLINE *prev; // Previous item in list FL_BLINE *next; // Next item in list void *data; // Pointer to data (function) short length; // sizeof(txt)-1, may be longer than string char flags; // selected, displayed char txt[1]; // start of allocated array }; // // 'Fl_File_Browser::full_height()' - Return the height of the list. // int // O - Height in pixels Fl_File_Browser::full_height() const { int i, // Looping var th; // Total height of list. for (i = 0, th = 0; i < size(); i ++) th += item_height(find_line(i)); return (th); } // // 'Fl_File_Browser::item_height()' - Return the height of a list item. // int // O - Height in pixels Fl_File_Browser::item_height(void *p) const // I - List item data { FL_BLINE *line; // Pointer to line char *t; // Pointer into text int height; // Width of line int textheight; // Height of text // Figure out the standard text height... fl_font(textfont(), textsize()); textheight = fl_height(); // We always have at least 1 line... height = textheight; // Scan for newlines... line = (FL_BLINE *)p; if (line != NULL) for (t = line->txt; *t != '\0'; t ++) if (*t == '\n') height += textheight; // If we have enabled icons then add space for them... if (Fl_File_Icon::first() != NULL && height < iconsize_) height = iconsize_; // Add space for the selection border.. height += 2; // Return the height return (height); } // // 'Fl_File_Browser::item_width()' - Return the width of a list item. // int // O - Width in pixels Fl_File_Browser::item_width(void *p) const // I - List item data { int i; // Looping var FL_BLINE *line; // Pointer to line char *t, // Pointer into text *ptr, // Pointer into fragment fragment[10240]; // Fragment of text int width, // Width of line tempwidth; // Width of fragment int column; // Current column const int *columns; // Columns // Set the font and size... fl_font(textfont(), textsize()); // Scan for newlines... line = (FL_BLINE *)p; columns = column_widths(); if (strchr(line->txt, '\n') == NULL && strchr(line->txt, column_char()) == NULL) { // Do a fast width calculation... width = (int)fl_width(line->txt); } else { // More than 1 line or have columns; find the maximum width... width = 0; tempwidth = 0; column = 0; for (t = line->txt, ptr = fragment; *t != '\0'; t ++) if (*t == '\n') { // Newline - nul terminate this fragment and get the width... *ptr = '\0'; tempwidth += (int)fl_width(fragment); // Update the max width as needed... if (tempwidth > width) width = tempwidth; // Point back to the start of the fragment... ptr = fragment; tempwidth = 0; column = 0; } else if (*t == column_char()) { // Advance to the next column... column ++; if (columns) { for (i = 0, tempwidth = 0; i < column && columns[i]; i ++) tempwidth += columns[i]; } else tempwidth = column * (int)(fl_height() * 0.6 * 8.0); if (tempwidth > width) width = tempwidth; ptr = fragment; } else *ptr++ = *t; if (ptr > fragment) { // Nul terminate this fragment and get the width... *ptr = '\0'; tempwidth += (int)fl_width(fragment); // Update the max width as needed... if (tempwidth > width) width = tempwidth; } } // If we have enabled icons then add space for them... if (Fl_File_Icon::first() != NULL) width += iconsize_ + 8; // Add space for the selection border.. width += 2; // Return the width return (width); } // // 'Fl_File_Browser::item_draw()' - Draw a list item. // void Fl_File_Browser::item_draw(void *p, // I - List item data int X, // I - Upper-lefthand X coordinate int Y, // I - Upper-lefthand Y coordinate int W, // I - Width of item int) const // I - Height of item { int i; // Looping var FL_BLINE *line; // Pointer to line Fl_Color c; // Text color char *t, // Pointer into text *ptr, // Pointer into fragment fragment[10240]; // Fragment of text int width, // Width of line height; // Height of line int column; // Current column const int *columns; // Columns // Draw the list item text... line = (FL_BLINE *)p; if (line->txt[strlen(line->txt) - 1] == '/') fl_font(textfont() | FL_BOLD, textsize()); else fl_font(textfont(), textsize()); if (line->flags & SELECTED) c = fl_contrast(textcolor(), selection_color()); else c = textcolor(); if (Fl_File_Icon::first() == NULL) { // No icons, just draw the text... X ++; W -= 2; } else { // Draw the icon if it is set... if (line->data) ((Fl_File_Icon *)line->data)->draw(X, Y, iconsize_, iconsize_, (line->flags & SELECTED) ? FL_YELLOW : FL_LIGHT2, active_r()); // Draw the text offset to the right... X += iconsize_ + 9; W -= iconsize_ - 10; // Center the text vertically... height = fl_height(); for (t = line->txt; *t != '\0'; t ++) if (*t == '\n') height += fl_height(); if (height < iconsize_) Y += (iconsize_ - height) / 2; } // Draw the text... line = (FL_BLINE *)p; columns = column_widths(); width = 0; column = 0; if (active_r()) fl_color(c); else fl_color(fl_inactive(c)); for (t = line->txt, ptr = fragment; *t != '\0'; t ++) if (*t == '\n') { // Newline - nul terminate this fragment and draw it... *ptr = '\0'; fl_draw(fragment, X + width, Y, W - width, fl_height(), (Fl_Align)(FL_ALIGN_LEFT | FL_ALIGN_CLIP), 0, 0); // Point back to the start of the fragment... ptr = fragment; width = 0; Y += fl_height(); column = 0; } else if (*t == column_char()) { // Tab - nul terminate this fragment and draw it... *ptr = '\0'; int cW = W - width; // Clip width... if (columns) { // Try clipping inside this column... for (i = 0; i < column && columns[i]; i ++); if (columns[i]) cW = columns[i]; } fl_draw(fragment, X + width, Y, cW, fl_height(), (Fl_Align)(FL_ALIGN_LEFT | FL_ALIGN_CLIP), 0, 0); // Advance to the next column... column ++; if (columns) { for (i = 0, width = 0; i < column && columns[i]; i ++) width += columns[i]; } else width = column * (int)(fl_height() * 0.6 * 8.0); ptr = fragment; } else *ptr++ = *t; if (ptr > fragment) { // Nul terminate this fragment and draw it... *ptr = '\0'; fl_draw(fragment, X + width, Y, W - width, fl_height(), (Fl_Align)(FL_ALIGN_LEFT | FL_ALIGN_CLIP), 0, 0); } } // // 'Fl_File_Browser::Fl_File_Browser()' - Create a Fl_File_Browser widget. // Fl_File_Browser::Fl_File_Browser(int X, // I - Upper-lefthand X coordinate int Y, // I - Upper-lefthand Y coordinate int W, // I - Width in pixels int H, // I - Height in pixels const char *l) // I - Label text : Fl_Browser(X, Y, W, H, l) { // Initialize the filter pattern, current directory, and icon size... pattern_ = "*"; directory_ = ""; iconsize_ = (uchar)(3 * textsize() / 2); filetype_ = FILES; } // // 'Fl_File_Browser::load()' - Load a directory into the browser. // int // O - Number of files loaded Fl_File_Browser::load(const char *directory,// I - Directory to load Fl_File_Sort_F *sort) // I - Sort function to use { int i; // Looping var int num_files; // Number of files in directory int num_dirs; // Number of directories in list char filename[4096]; // Current file Fl_File_Icon *icon; // Icon to use // printf("Fl_File_Browser::load(\"%s\")\n", directory); clear(); directory_ = directory; if (!directory) return (0); if (directory_[0] == '\0') { // // No directory specified; for UNIX list all mount points. For DOS // list all valid drive letters... // num_files = 0; if ((icon = Fl_File_Icon::find("any", Fl_File_Icon::DEVICE)) == NULL) icon = Fl_File_Icon::find("any", Fl_File_Icon::DIRECTORY); #ifdef WIN32 # ifdef __CYGWIN__ // // Cygwin provides an implementation of setmntent() to get the list // of available drives... // FILE *m = setmntent("/-not-used-", "r"); struct mntent *p; while ((p = getmntent (m)) != NULL) { add(p->mnt_dir, icon); num_files ++; } endmntent(m); # else // // Normal WIN32 code uses drive bits... // DWORD drives; // Drive available bits drives = GetLogicalDrives(); for (i = 'A'; i <= 'Z'; i ++, drives >>= 1) if (drives & 1) { sprintf(filename, "%c:/", i); if (i < 'C') // see also: GetDriveType and GetVolumeInformation in WIN32 add(filename, icon); else add(filename, icon); num_files ++; } # endif // __CYGWIN__ #elif defined(__EMX__) // // OS/2 code uses drive bits... // ULONG curdrive; // Current drive ULONG drives; // Drive available bits int start = 3; // 'C' (MRS - dunno if this is correct!) DosQueryCurrentDisk(&curdrive, &drives); drives >>= start - 1; for (i = 'A'; i <= 'Z'; i ++, drives >>= 1) if (drives & 1) { sprintf(filename, "%c:/", i); add(filename, icon); num_files ++; } #elif defined(__APPLE__) && !defined(__MWERKS__) // MacOS X and Darwin use getfsstat() system call... int numfs; // Number of file systems struct statfs *fs; // Buffer for file system info // We always have the root filesystem. add("/", icon); // Get the mounted filesystems... numfs = getfsstat(NULL, 0, MNT_NOWAIT); if (numfs > 0) { // We have file systems, get them... fs = new struct statfs[numfs]; getfsstat(fs, sizeof(struct statfs) * numfs, MNT_NOWAIT); // Add filesystems to the list... for (i = 0; i < numfs; i ++) { // Ignore "/", "/dev", and "/.vol"... if (fs[i].f_mntonname[1] && strcmp(fs[i].f_mntonname, "/dev") && strcmp(fs[i].f_mntonname, "/.vol")) { snprintf(filename, sizeof(filename), "%s/", fs[i].f_mntonname); add(filename, icon); } num_files ++; } // Free the memory used for the file system info array... delete[] fs; } #else // // UNIX code uses /etc/fstab or similar... // FILE *mtab; // /etc/mtab or /etc/mnttab file char line[1024]; // Input line // // Open the file that contains a list of mounted filesystems... // mtab = fopen("/etc/mnttab", "r"); // Fairly standard if (mtab == NULL) mtab = fopen("/etc/mtab", "r"); // More standard if (mtab == NULL) mtab = fopen("/etc/fstab", "r"); // Otherwise fallback to full list if (mtab == NULL) mtab = fopen("/etc/vfstab", "r"); // Alternate full list file if (mtab != NULL) { while (fgets(line, sizeof(line), mtab) != NULL) { if (line[0] == '#' || line[0] == '\n') continue; if (sscanf(line, "%*s%4095s", filename) != 1) continue; strlcat(filename, "/", sizeof(filename)); // printf("Fl_File_Browser::load() - adding \"%s\" to list...\n", filename); add(filename, icon); num_files ++; } fclose(mtab); } #endif // WIN32 || __EMX__ } else { dirent **files; // Files in in directory // // Build the file list... // #if (defined(WIN32) && !defined(__CYGWIN__)) || defined(__EMX__) strlcpy(filename, directory_, sizeof(filename)); i = strlen(filename) - 1; if (i == 2 && filename[1] == ':' && (filename[2] == '/' || filename[2] == '\\')) filename[2] = '/'; else if (filename[i] != '/' && filename[i] != '\\') strlcat(filename, "/", sizeof(filename)); num_files = fl_filename_list(filename, &files, sort); #else num_files = fl_filename_list(directory_, &files, sort); #endif /* WIN32 || __EMX__ */ if (num_files <= 0) return (0); for (i = 0, num_dirs = 0; i < num_files; i ++) { if (strcmp(files[i]->d_name, "./")) { snprintf(filename, sizeof(filename), "%s/%s", directory_, files[i]->d_name); icon = Fl_File_Icon::find(filename); if ((icon && icon->type() == Fl_File_Icon::DIRECTORY) || fl_filename_isdir(filename)) { num_dirs ++; insert(num_dirs, files[i]->d_name, icon); } else if (filetype_ == FILES && fl_filename_match(files[i]->d_name, pattern_)) { add(files[i]->d_name, icon); } } free(files[i]); } free(files); } return (num_files); } // // 'Fl_File_Browser::filter()' - Set the filename filter. // void Fl_File_Browser::filter(const char *pattern) // I - Pattern string { // If pattern is NULL set the pattern to "*"... if (pattern) pattern_ = pattern; else pattern_ = "*"; } // // End of "$Id$". //