44e63ce2e7
This allows scanning stuff without initializing ncurses. Not too useful at this point since ncdu will switch to an ncurses environment when it's done anyway, but this will become more useful when the export-to-file feature has been implemented.
400 строки
10 KiB
C
400 строки
10 KiB
C
/* ncdu - NCurses Disk Usage
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Copyright (c) 2007-2012 Yoran Heling
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "global.h"
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#include <string.h>
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#include <stdlib.h>
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#include <ncurses.h>
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static int graph = 1, show_as = 0, info_show = 0, info_page = 0, info_start = 0;
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static void browse_draw_info(struct dir *dr) {
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struct dir *t;
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int i;
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nccreate(11, 60, "Item info");
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if(dr->hlnk) {
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if(info_page == 0)
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attron(A_REVERSE);
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ncaddstr(0, 41, "1:Info");
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attroff(A_REVERSE);
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if(info_page == 1)
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attron(A_REVERSE);
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ncaddstr(0, 50, "2:Links");
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attroff(A_REVERSE);
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}
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switch(info_page) {
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case 0:
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attron(A_BOLD);
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ncaddstr(2, 3, "Name:");
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ncaddstr(3, 3, "Path:");
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ncaddstr(4, 3, "Type:");
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ncaddstr(6, 3, " Disk usage:");
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ncaddstr(7, 3, "Apparent size:");
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attroff(A_BOLD);
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ncaddstr(2, 9, cropstr(dr->name, 49));
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ncaddstr(3, 9, cropstr(getpath(dr->parent), 49));
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ncaddstr(4, 9, dr->flags & FF_DIR ? "Directory"
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: dr->flags & FF_FILE ? "File" : "Other (link, device, socket, ..)");
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ncprint(6, 18, "%s (%s B)", formatsize(dr->size), fullsize(dr->size));
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ncprint(7, 18, "%s (%s B)", formatsize(dr->asize), fullsize(dr->asize));
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break;
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case 1:
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for(i=0,t=dr->hlnk; t!=dr; t=t->hlnk,i++) {
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if(info_start > i)
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continue;
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if(i-info_start > 5)
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break;
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ncaddstr(2+i-info_start, 3, cropstr(getpath(t), 54));
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}
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if(t!=dr)
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ncaddstr(8, 25, "-- more --");
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break;
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}
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ncaddstr(9, 32, "Press i to hide this window");
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}
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static void browse_draw_item(struct dir *n, int row) {
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char ct, dt, *size, gr[11];
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int i, o;
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float pc;
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if(n->flags & FF_BSEL)
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attron(A_REVERSE);
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/* reference to parent dir has a different format */
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if(n == dirlist_parent) {
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mvhline(row, 0, ' ', wincols);
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o = graph == 0 ? 12 :
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graph == 1 ? 24 :
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graph == 2 ? 20 :
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31 ;
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mvaddstr(row, o, "/..");
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if(n->flags & FF_BSEL)
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attroff(A_REVERSE);
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return;
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}
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/* determine indication character */
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ct = n->flags & FF_EXL ? '<' :
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n->flags & FF_ERR ? '!' :
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n->flags & FF_SERR ? '.' :
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n->flags & FF_OTHFS ? '>' :
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n->flags & FF_HLNKC ? 'H' :
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!(n->flags & FF_FILE
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|| n->flags & FF_DIR) ? '@' :
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n->flags & FF_DIR
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&& n->sub == NULL ? 'e' :
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' ' ;
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dt = n->flags & FF_DIR ? '/' : ' ';
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size = formatsize(show_as ? n->asize : n->size);
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/* create graph (if necessary) */
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if(graph) {
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/* percentage */
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if((pc = (float)(show_as ? n->parent->asize : n->parent->size)) < 1)
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pc = 1.0f;
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pc = ((float)(show_as ? n->asize : n->size) / pc) * 100.0f;
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/* graph */
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if(graph == 1 || graph == 3) {
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o = (int)(10.0f*(float)(show_as ? n->asize : n->size) / (float)(show_as ? dirlist_maxa : dirlist_maxs));
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for(i=0; i<10; i++)
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gr[i] = i < o ? '#' : ' ';
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gr[10] = '\0';
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}
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}
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/* format and add item to the list */
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switch(graph) {
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case 0: mvprintw(row, 0, "%c %8s %c%-*s", ct, size, dt, wincols-13, cropstr(n->name, wincols-13)); break;
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case 1: mvprintw(row, 0, "%c %8s [%10s] %c%-*s", ct, size, gr, dt, wincols-25, cropstr(n->name, wincols-25)); break;
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case 2: mvprintw(row, 0, "%c %8s [%5.1f%%] %c%-*s", ct, size, pc, dt, wincols-21, cropstr(n->name, wincols-21)); break;
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case 3: mvprintw(row, 0, "%c %8s [%5.1f%% %10s] %c%-*s", ct, size, pc, gr, dt, wincols-32, cropstr(n->name, wincols-32));
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}
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if(n->flags & FF_BSEL)
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attroff(A_REVERSE);
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}
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void browse_draw() {
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struct dir *t;
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char fmtsize[9], *tmp;
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int selected = 0, i;
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erase();
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t = dirlist_get(0);
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/* top line - basic info */
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attron(A_REVERSE);
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mvhline(0, 0, ' ', wincols);
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mvhline(winrows-1, 0, ' ', wincols);
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mvprintw(0,0,"%s %s ~ Use the arrow keys to navigate, press ? for help", PACKAGE_NAME, PACKAGE_VERSION);
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if(read_only)
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mvaddstr(0, wincols-11, "[read-only]");
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attroff(A_REVERSE);
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/* second line - the path */
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mvhline(1, 0, '-', wincols);
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if(t) {
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mvaddch(1, 3, ' ');
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tmp = getpath(t->parent);
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mvaddstr(1, 4, cropstr(tmp, wincols-8));
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mvaddch(1, 4+((int)strlen(tmp) > wincols-8 ? wincols-8 : (int)strlen(tmp)), ' ');
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}
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/* bottom line - stats */
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attron(A_REVERSE);
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if(t) {
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strcpy(fmtsize, formatsize(t->parent->size));
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mvprintw(winrows-1, 0, " Total disk usage: %s Apparent size: %s Items: %d",
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fmtsize, formatsize(t->parent->asize), t->parent->items);
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} else
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mvaddstr(winrows-1, 0, " No items to display.");
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attroff(A_REVERSE);
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/* nothing to display? stop here. */
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if(!t)
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return;
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/* get start position */
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t = dirlist_top(0);
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/* print the list to the screen */
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for(i=0; t && i<winrows-3; t=dirlist_next(t),i++) {
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browse_draw_item(t, 2+i);
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/* save the selected row number for later */
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if(t->flags & FF_BSEL)
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selected = i;
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}
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/* draw information window */
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t = dirlist_get(0);
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if(info_show && t != dirlist_parent)
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browse_draw_info(t);
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/* move cursor to selected row for accessibility */
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move(selected+2, 0);
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}
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int browse_key(int ch) {
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struct dir *t, *sel;
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int i, catch = 0;
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sel = dirlist_get(0);
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/* info window overwrites a few keys */
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if(info_show && sel)
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switch(ch) {
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case '1':
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info_page = 0;
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break;
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case '2':
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if(sel->hlnk)
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info_page = 1;
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break;
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case KEY_RIGHT:
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case 'l':
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if(sel->hlnk) {
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info_page = 1;
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catch++;
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}
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break;
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case KEY_LEFT:
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case 'h':
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if(sel->hlnk) {
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info_page = 0;
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catch++;
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}
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break;
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case KEY_UP:
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case 'k':
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if(sel->hlnk && info_page == 1) {
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if(info_start > 0)
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info_start--;
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catch++;
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}
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break;
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case KEY_DOWN:
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case 'j':
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case ' ':
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if(sel->hlnk && info_page == 1) {
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for(i=0,t=sel->hlnk; t!=sel; t=t->hlnk)
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i++;
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if(i > info_start+6)
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info_start++;
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catch++;
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}
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break;
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}
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if(!catch)
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switch(ch) {
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/* selecting items */
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case KEY_UP:
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case 'k':
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dirlist_select(dirlist_get(-1));
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dirlist_top(-1);
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info_start = 0;
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break;
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case KEY_DOWN:
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case 'j':
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dirlist_select(dirlist_get(1));
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dirlist_top(1);
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info_start = 0;
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break;
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case KEY_HOME:
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dirlist_select(dirlist_next(NULL));
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dirlist_top(2);
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info_start = 0;
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break;
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case KEY_LL:
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case KEY_END:
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dirlist_select(dirlist_get(1<<30));
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dirlist_top(1);
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info_start = 0;
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break;
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case KEY_PPAGE:
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dirlist_select(dirlist_get(-1*(winrows-3)));
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dirlist_top(-1);
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info_start = 0;
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break;
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case KEY_NPAGE:
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dirlist_select(dirlist_get(winrows-3));
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dirlist_top(1);
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info_start = 0;
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break;
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/* sorting items */
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case 'n':
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dirlist_set_sort(DL_COL_NAME, dirlist_sort_col == DL_COL_NAME ? !dirlist_sort_desc : 0, DL_NOCHANGE);
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info_show = 0;
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break;
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case 's':
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i = show_as ? DL_COL_ASIZE : DL_COL_SIZE;
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dirlist_set_sort(i, dirlist_sort_col == i ? !dirlist_sort_desc : 1, DL_NOCHANGE);
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info_show = 0;
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break;
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case 'e':
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dirlist_set_hidden(!dirlist_hidden);
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info_show = 0;
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break;
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case 't':
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dirlist_set_sort(DL_NOCHANGE, DL_NOCHANGE, dirlist_sort_df);
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info_show = 0;
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break;
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case 'a':
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show_as = !show_as;
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if(dirlist_sort_col == DL_COL_ASIZE || dirlist_sort_col == DL_COL_SIZE)
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dirlist_set_sort(show_as ? DL_COL_ASIZE : DL_COL_SIZE, DL_NOCHANGE, DL_NOCHANGE);
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info_show = 0;
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break;
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/* browsing */
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case 10:
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case KEY_RIGHT:
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case 'l':
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if(sel != NULL && sel->sub != NULL) {
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dirlist_open(sel->sub);
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dirlist_top(-3);
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}
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info_show = 0;
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break;
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case KEY_LEFT:
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case 'h':
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case '<':
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if(sel != NULL && sel->parent->parent != NULL) {
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dirlist_open(sel->parent);
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dirlist_top(-3);
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}
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info_show = 0;
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break;
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/* and other stuff */
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case 'r':
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if(sel != NULL) {
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dir_ui = 2;
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dir_mem_init(sel->parent);
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dir_scan_init(getpath(sel->parent));
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}
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info_show = 0;
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break;
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case 'q':
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if(info_show)
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info_show = 0;
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else
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return 1;
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break;
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case 'g':
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if(++graph > 3)
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graph = 0;
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info_show = 0;
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break;
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case 'i':
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info_show = !info_show;
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break;
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case '?':
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help_init();
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info_show = 0;
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break;
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case 'd':
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if(read_only || sel == NULL || sel == dirlist_parent)
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break;
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info_show = 0;
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if((t = dirlist_get(1)) == sel)
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if((t = dirlist_get(-1)) == sel || t == dirlist_parent)
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t = sel->parent;
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delete_init(sel, t);
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break;
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}
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/* make sure the info_* options are correct */
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sel = dirlist_get(0);
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if(!info_show || sel == dirlist_parent)
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info_show = info_page = info_start = 0;
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else if(sel && !sel->hlnk)
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info_page = info_start = 0;
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return 0;
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}
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void browse_init(struct dir *cur) {
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pstate = ST_BROWSE;
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dirlist_open(cur);
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}
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