1 files changed, 264 insertions, 0 deletions
diff --git a/dselect/basecmds.cc b/dselect/basecmds.cc
new file mode 100644
index 000000000..9181601bc
--- /dev/null
+++ b/dselect/basecmds.cc
@@ -0,0 +1,264 @@
+/*
+ * dselect - Debian GNU/Linux package maintenance user interface
+ * bcommands.cc - base list keyboard commands display
+ *
+ * Copyright (C) 1994,1995 Ian Jackson <iwj10@cus.cam.ac.uk>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2,
+ * or (at your option) any later version.
+ *
+ * This 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <ncurses.h>
+#include <assert.h>
+#include <signal.h>
+
+extern "C" {
+#include "config.h"
+#include "dpkg.h"
+#include "dpkg-db.h"
+}
+#include "dselect.h"
+#include "helpmsgs.h"
+
+void baselist::kd_scrollon() {
+  topofscreen += list_height;
+  if (topofscreen > nitems - list_height) topofscreen= nitems - list_height;
+  if (topofscreen < 0) topofscreen= 0;
+  if (cursorline < topofscreen)
+    setcursor(topofscreen);
+  refreshlist();
+}
+
+void baselist::kd_scrollon1() {
+  if (topofscreen >= nitems - list_height) return;
+  topofscreen++;
+  if (cursorline < topofscreen)
+    setcursor(topofscreen);
+  refreshlist();
+}
+
+void baselist::kd_scrollback() {
+  topofscreen -= list_height;
+  if (topofscreen < 0) topofscreen= 0;
+  if (cursorline >= topofscreen + list_height)
+    setcursor(topofscreen + list_height - 1);
+  refreshlist();
+}
+
+void baselist::kd_scrollback1() {
+  if (topofscreen <= 0) return;
+  topofscreen--;
+  if (cursorline >= topofscreen + list_height)
+    setcursor(topofscreen + list_height - 1);
+  refreshlist();
+}
+
+void baselist::kd_top() {
+  topofscreen= 0; setcursor(0);
+}
+
+void baselist::kd_bottom() {
+  topofscreen= nitems - list_height;
+  if (topofscreen < 0) topofscreen= 0;
+  setcursor(lesserint(topofscreen + list_height - 1, nitems-1));
+}
+
+void baselist::kd_redraw() {
+//#define RFSH(x) werase(x); redrawwin(x)
+//  RFSH(listpad);
+//  RFSH(infopad); 
+//  RFSH(colheadspad); 
+//  RFSH(thisstatepad); 
+//  RFSH(titlewin); 
+//  RFSH(whatinfowin); /* fixme-ncurses: why does ncurses need this ? */
+  clearok(curscr,TRUE);
+  redrawall();
+  if (debug) fprintf(debug,"baselist[%p]::kd_redraw() done\n",this);
+}
+
+void baselist::kd_searchagain() {
+  if (!searchstring[0]) { beep(); return; }
+  dosearch();
+}
+
+void baselist::kd_search() {
+  werase(querywin);
+  mvwaddstr(querywin,0,0, "Search for ? ");
+  echo();
+  /* fixme: make / RET do `search again' and / DEL to abort */
+  if (wgetnstr(querywin,searchstring,sizeof(searchstring)-1) == ERR)
+    searchstring[0]= 0;
+  noecho();
+  if (whatinfo_height) { touchwin(whatinfowin); refreshinfo(); }
+  else if (info_height) { touchwin(infopad); refreshinfo(); }
+  else if (thisstate_height) redrawthisstate();
+  else { touchwin(listpad); refreshlist(); }
+  if (searchstring[0]) dosearch();
+}
+
+void baselist::displayhelp(const struct helpmenuentry *helpmenu, int key) {
+  const struct helpmenuentry *hme;
+  int maxx, maxy, i, y, x, nextkey;
+  
+  getmaxyx(stdscr,maxy,maxx);
+  clearok(stdscr,TRUE);
+  for (;;) {
+    werase(stdscr);
+    for (hme= helpmenu; hme->key && hme->key != key; hme++);
+    if (hme->key) {
+      attrset(list_attr);
+      mvaddstr(1,0, hme->msg->text);
+      attrset(title_attr);
+      mvaddstr(0,0, "Help: ");
+      addstr(hme->msg->title);
+      getyx(stdscr,y,x);
+      while (++x<maxx) addch(' ');
+      attrset(thisstate_attr);
+      mvaddstr(maxy-1,0,
+"? = help menu    Space = exit help    . = next help    or a help page key "
+               );
+      getyx(stdscr,y,x);
+      while (++x<maxx) addch(' ');
+      move(maxy,maxx);
+      attrset(A_NORMAL);
+      nextkey= hme[1].key;
+    } else {
+      mvaddstr(1,1, "Help information is available under the following topics:");
+      for (i=0, hme=helpmenu; hme->key; hme++,i++) {
+        attrset(A_BOLD);
+        mvaddch(i+3,3, hme->key);
+        attrset(A_NORMAL);
+        mvaddstr(i+3,6, hme->msg->title);
+      }
+      mvaddstr(i+4,1,
+               "Press a key from the list above, Space to exit help,\n"
+               "  or `.' (full stop) to read each help page in turn. ");
+      nextkey= helpmenu[0].key;
+    }
+    refresh();
+    key= getch();
+    if (key == EOF) ohshite("error reading keyboard in help");
+    if (key == ' ') {
+      break;
+    } else if (key == '?') {
+      key= 0;
+    } else if (key == '.') {
+      key= nextkey;
+    }
+  }
+  werase(stdscr);
+  clearok(stdscr,TRUE);
+  wnoutrefresh(stdscr);
+
+  redrawtitle();
+  refreshcolheads();
+  refreshlist();
+  redrawthisstate();
+  refreshinfo();
+  wnoutrefresh(whatinfowin);
+}     
+
+void baselist::kd_help() {
+  displayhelp(helpmenulist(),0);
+}
+
+void baselist::setcursor(int index) {
+  if (listpad && cursorline != -1) {
+    redrawitemsrange(cursorline,cursorline+1);
+    redraw1itemsel(cursorline,0);
+  }
+  if (cursorline != index) infotopofscreen= 0;
+  cursorline= index;
+  if (listpad) {
+    redrawitemsrange(cursorline,cursorline+1);
+    redraw1itemsel(cursorline,1);
+    refreshlist();
+    redrawthisstate();
+  }
+  redrawinfo();
+}
+
+void baselist::kd_down() {
+  int ncursor= cursorline;
+  // scroll by one line unless the bottom is already visible
+  // or we're in the top half of the screen ...
+  if (topofscreen < nitems - list_height &&
+      ncursor >= topofscreen + list_height - 3) topofscreen++;
+  // move cursor if there are any more ...
+  if (cursorline+1 < nitems) ncursor++;
+  setcursor(ncursor);
+}
+  
+void baselist::kd_up() {
+  int ncursor= cursorline;
+  // scroll by one line if there are any lines not shown yet
+  // and we're not in the bottom half the screen ...
+  if (topofscreen > 0 &&
+      ncursor <= topofscreen + 2) topofscreen--;
+  // move cursor if there are any to move it to ...
+  if (cursorline > 0) ncursor--;
+  setcursor(ncursor);
+}
+
+void baselist::kd_iscrollon() {
+  infotopofscreen += info_height;
+  if (infotopofscreen > infolines - info_height)
+    infotopofscreen= infolines - info_height;
+  if (infotopofscreen < 0) infotopofscreen= 0;
+  refreshinfo();
+}
+
+void baselist::kd_iscrollback() {
+  infotopofscreen -= info_height;
+  if (infotopofscreen < 0) infotopofscreen= 0;
+  refreshinfo();
+}
+
+void baselist::kd_iscrollon1() {
+  if (infotopofscreen >= infolines - info_height) return;
+  infotopofscreen++; refreshinfo();
+}
+
+void baselist::kd_iscrollback1() {
+  if (infotopofscreen <= 0) return;
+  infotopofscreen--; refreshinfo();
+}
+
+void baselist::kd_panon() {
+  leftofscreen += xmax/3;
+  if (leftofscreen > total_width - xmax) leftofscreen= total_width - xmax;
+  if (leftofscreen < 0) leftofscreen= 0;
+  refreshcolheads(); refreshlist(); redrawthisstate(); refreshinfo();
+}
+
+void baselist::kd_panback() {
+  leftofscreen -= xmax/3;
+  if (leftofscreen < 0) leftofscreen= 0;
+  refreshcolheads(); refreshlist(); redrawthisstate(); refreshinfo();
+}
+
+void baselist::kd_panon1() {
+  leftofscreen++;
+  if (leftofscreen > total_width - xmax) leftofscreen= total_width - xmax;
+  if (leftofscreen < 0) leftofscreen= 0;
+  refreshcolheads(); refreshlist(); redrawthisstate(); refreshinfo();
+}
+
+void baselist::kd_panback1() {
+  leftofscreen--;
+  if (leftofscreen < 0) leftofscreen= 0;
+  refreshcolheads(); refreshlist(); redrawthisstate(); refreshinfo();
+}