From cbffab246997fb5a06211dfb706b54e5ae5bb59f Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 16:58:51 +0200
Subject: Adding upstream version 1.21.22.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 dselect/baselist.cc | 412 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 412 insertions(+)
 create mode 100644 dselect/baselist.cc

(limited to 'dselect/baselist.cc')

diff --git a/dselect/baselist.cc b/dselect/baselist.cc
new file mode 100644
index 0000000..ec8cf4d
--- /dev/null
+++ b/dselect/baselist.cc
@@ -0,0 +1,412 @@
+/*
+ * dselect - Debian package maintenance user interface
+ * baselist.cc - list of somethings
+ *
+ * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2001 Wichert Akkerman <wakkerma@debian.org>
+ * Copyright © 2007-2013 Guillem Jover <guillem@debian.org>
+ *
+ * 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 of the License, 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 program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/ioctl.h>
+
+#include <errno.h>
+#include <string.h>
+#include <termios.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/c-ctype.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+
+#include "dselect.h"
+#include "bindings.h"
+
+void mywerase(WINDOW *win) {
+  int my,mx,y,x;
+  getmaxyx(win,my,mx);
+  for (y=0; y<my; y++) {
+    wmove(win,y,0); for (x=0; x<mx; x++) waddch(win,' ');
+  }
+  wmove(win,0,0);
+}
+
+void
+baselist::resize_window()
+{
+  debug(dbg_general, "baselist::resize_window(), baselist=%p", this);
+  enddisplay();
+  startdisplay();
+  if (doupdate() == ERR)
+    ohshite(_("cannot update screen after window resize"));
+}
+
+void
+baselist::add_column(column &col, const char *title, int width)
+{
+  col.title = title;
+  col.x = col_cur_x;
+  col.width = width;
+
+  col_cur_x += col.width + gap_width;
+}
+
+void
+baselist::end_column(column &col, const char *title)
+{
+  col.title = title;
+  col.x = col_cur_x;
+  col.width = total_width - col.x;
+
+  col_cur_x += col.width + gap_width;
+}
+
+void
+baselist::draw_column_head(const column &col)
+{
+  mvwaddnstr(colheadspad, 0, col.x, col.title, col.width);
+}
+
+void
+baselist::draw_column_sep(const column &col, int y)
+{
+  mvwaddch(listpad, y, col.x - 1, ' ');
+}
+
+void
+baselist::draw_column_item(const column &col, int y, const char *item)
+{
+  mvwprintw(listpad, y, col.x, "%-*.*s", col.width, col.width, item);
+}
+
+void baselist::setheights() {
+  int y= ymax - (title_height + colheads_height + thisstate_height);
+
+  if (y < 1)
+    internerr("widget y=%d < 1", y);
+
+  if (showinfo==2 && y>=7) {
+    list_height= 5;
+    whatinfo_height= 1;
+    info_height= y-6;
+  } else if (showinfo==1 && y>=10) {
+    list_height= y/2;
+    info_height= (y-1)/2;
+    whatinfo_height= 1;
+  } else {
+    list_height= y;
+    info_height= 0;
+    whatinfo_height= 0;
+  }
+  colheads_row= title_height;
+  list_row= colheads_row + colheads_height;
+  thisstate_row= list_row + list_height;
+  info_row= thisstate_row + thisstate_height;
+  whatinfo_row= ymax - 1;
+}
+
+void baselist::startdisplay() {
+  debug(dbg_general, "baselist[%p]::startdisplay()", this);
+  cbreak(); noecho(); nonl(); keypad(stdscr,TRUE);
+  clear(); wnoutrefresh(stdscr);
+
+  // find attributes
+  if (has_colors() && start_color()==OK && COLOR_PAIRS >= numscreenparts) {
+    int i;
+    printf("allocing\n");
+    for (i = 1; i < numscreenparts; i++) {
+       if (init_pair(i, color[i].fore, color[i].back) != OK)
+         ohshite(_("failed to allocate colour pair"));
+       part_attr[i] = COLOR_PAIR(i) | color[i].attr;
+    }
+  } else {
+    /* User defined attributes for B&W mode are not currently supported. */
+    part_attr[title] = A_REVERSE;
+    part_attr[thisstate] = A_STANDOUT;
+    part_attr[list] = 0;
+    part_attr[listsel] = A_STANDOUT;
+    part_attr[selstate] = A_BOLD;
+    part_attr[selstatesel] = A_STANDOUT;
+    part_attr[colheads]= A_BOLD;
+    part_attr[query] = part_attr[title];
+    part_attr[info_body] = part_attr[list];
+    part_attr[info_head] = A_BOLD;
+    part_attr[whatinfo] = part_attr[thisstate];
+    part_attr[helpscreen] = A_NORMAL;
+  }
+
+  // set up windows and pads, based on screen size
+  getmaxyx(stdscr,ymax,xmax);
+  title_height= ymax>=6;
+  colheads_height= ymax>=5;
+  thisstate_height= ymax>=3;
+
+  setheights();
+  setwidths();
+
+  titlewin= newwin(1,xmax, 0,0);
+  if (!titlewin) ohshite(_("failed to create title window"));
+  wattrset(titlewin, part_attr[title]);
+
+  whatinfowin= newwin(1,xmax, whatinfo_row,0);
+  if (!whatinfowin) ohshite(_("failed to create whatinfo window"));
+  wattrset(whatinfowin, part_attr[whatinfo]);
+
+  listpad = newpad(ymax, total_width);
+  if (!listpad) ohshite(_("failed to create baselist pad"));
+
+  colheadspad= newpad(1, total_width);
+  if (!colheadspad) ohshite(_("failed to create heading pad"));
+  wattrset(colheadspad, part_attr[colheads]);
+
+  thisstatepad= newpad(1, total_width);
+  if (!thisstatepad) ohshite(_("failed to create thisstate pad"));
+  wattrset(thisstatepad, part_attr[thisstate]);
+
+  infopad= newpad(MAX_DISPLAY_INFO, total_width);
+  if (!infopad) ohshite(_("failed to create info pad"));
+  wattrset(infopad, part_attr[info_body]);
+  wbkgdset(infopad, ' ' | part_attr[info_body]);
+
+  querywin= newwin(1,xmax,ymax-1,0);
+  if (!querywin) ohshite(_("failed to create query window"));
+  wbkgdset(querywin, ' ' | part_attr[query]);
+
+  if (cursorline >= topofscreen + list_height) topofscreen= cursorline;
+  if (topofscreen > nitems - list_height) topofscreen= nitems - list_height;
+  if (topofscreen < 0) topofscreen= 0;
+
+  infotopofscreen= 0; leftofscreen= 0;
+
+  redrawall();
+
+  debug(dbg_general,
+        "baselist::startdisplay() done ...\n\n"
+        " xmax=%d, ymax=%d;\n\n"
+        " title_height=%d, colheads_height=%d, list_height=%d;\n"
+        " thisstate_height=%d, info_height=%d, whatinfo_height=%d;\n\n"
+        " colheads_row=%d, thisstate_row=%d, info_row=%d;\n"
+        " whatinfo_row=%d, list_row=%d;\n\n",
+        xmax, ymax, title_height, colheads_height, list_height,
+        thisstate_height, info_height, whatinfo_height,
+        colheads_row, thisstate_row, info_row, whatinfo_row, list_row);
+}
+
+void baselist::enddisplay() {
+  delwin(titlewin);
+  delwin(whatinfowin);
+  delwin(listpad);
+  delwin(colheadspad);
+  delwin(thisstatepad);
+  delwin(infopad);
+  wmove(stdscr,ymax,0); wclrtoeol(stdscr);
+  listpad = nullptr;
+  col_cur_x = 0;
+}
+
+void baselist::redrawall() {
+  redrawtitle();
+  redrawcolheads();
+  wattrset(listpad, part_attr[list]);
+  mywerase(listpad);
+  ldrawnstart= ldrawnend= -1; // start is first drawn; end is first undrawn; -1=none
+  refreshlist();
+  redrawthisstate();
+  redrawinfo();
+}
+
+void baselist::redraw1item(int index) {
+  redraw1itemsel(index, index == cursorline);
+}
+
+baselist::baselist(keybindings *kb) {
+  debug(dbg_general, "baselist[%p]::baselist()", this);
+
+  bindings= kb;
+  nitems= 0;
+
+  col_cur_x = 0;
+  gap_width = 1;
+  total_width = max(TOTAL_LIST_WIDTH, COLS);
+
+  xmax= -1;
+  ymax = -1;
+
+  list_height = 0;
+  info_height = 0;
+  title_height = 0;
+  whatinfo_height = 0;
+  colheads_height = 0;
+  thisstate_height = 0;
+
+  list_row = 0;
+  info_row = 0;
+  whatinfo_row = 0;
+  colheads_row = 0;
+  thisstate_row = 0;
+
+  topofscreen = 0;
+  leftofscreen = 0;
+  infotopofscreen = 0;
+  infolines = 0;
+
+  listpad = nullptr;
+  infopad = nullptr;
+  colheadspad = nullptr;
+  thisstatepad = nullptr;
+  titlewin = nullptr;
+  querywin = nullptr;
+  whatinfowin = nullptr;
+
+  cursorline = -1;
+  ldrawnstart = 0;
+  ldrawnend = 0;
+  showinfo= 1;
+
+  searchstring[0]= 0;
+}
+
+void baselist::itd_keys() {
+  whatinfovb(_("Keybindings"));
+
+  const int givek= xmax/3;
+  bindings->describestart();
+  const char **ta;
+  while ((ta = bindings->describenext()) != nullptr) {
+    const char **tap= ta+1;
+    for (;;) {
+      waddstr(infopad, gettext(*tap));
+      tap++;  if (!*tap) break;
+      waddstr(infopad, ", ");
+    }
+    int y,x;
+    getyx(infopad,y,x);
+    if (x >= givek) y++;
+    mvwaddstr(infopad, y,givek, ta[0]);
+    waddch(infopad,'\n');
+    delete [] ta;
+  }
+}
+
+void baselist::dosearch() {
+  int offset, index;
+  debug(dbg_general, "baselist[%p]::dosearch(); searchstring='%s'",
+        this, searchstring);
+  for (offset = 1, index = max(topofscreen, cursorline + 1);
+       offset<nitems;
+       offset++, index++) {
+    if (index >= nitems) index -= nitems;
+    if (matchsearch(index)) {
+      topofscreen= index-1;
+      if (topofscreen > nitems - list_height) topofscreen= nitems-list_height;
+      if (topofscreen < 0) topofscreen= 0;
+      setcursor(index);
+      return;
+    }
+  }
+  beep();
+}
+
+void baselist::refreshinfo() {
+  pnoutrefresh(infopad, infotopofscreen,leftofscreen, info_row,0,
+               min(info_row + info_height - 1, info_row + MAX_DISPLAY_INFO - 1),
+               min(total_width - leftofscreen - 1, xmax - 1));
+
+  if (whatinfo_height) {
+    mywerase(whatinfowin);
+    mvwaddstr(whatinfowin,0,0, whatinfovb.string());
+    if (infolines > info_height) {
+      wprintw(whatinfowin,_("  -- %d%%, press "),
+              (infotopofscreen + info_height) * 100 / infolines);
+      if (infotopofscreen + info_height < infolines) {
+        wprintw(whatinfowin,_("%s for more"), bindings->find("iscrollon"));
+        if (infotopofscreen) waddstr(whatinfowin, ", ");
+      }
+      if (infotopofscreen)
+        wprintw(whatinfowin, _("%s to go back"),bindings->find("iscrollback"));
+      waddch(whatinfowin,'.');
+    }
+    wnoutrefresh(whatinfowin);
+  }
+}
+
+void baselist::wordwrapinfo(int offset, const char *m) {
+  ssize_t usemax = xmax - 5;
+  debug(dbg_general, "baselist[%p]::wordwrapinfo(%d, '%s')", this, offset, m);
+  bool wrapping = false;
+
+  for (;;) {
+    int offleft=offset; while (*m == ' ' && offleft>0) { m++; offleft--; }
+    const char *p = strchrnul(m, '\n');
+    ptrdiff_t l = p - m;
+
+    while (l && c_isspace(m[l - 1]))
+      l--;
+    if (!l || (*m == '.' && l == 1)) {
+      if (wrapping) waddch(infopad,'\n');
+      waddch(infopad, '\n');
+      wrapping = false;
+    } else if (*m == ' ' || usemax < 10) {
+      if (wrapping) waddch(infopad,'\n');
+      waddnstr(infopad, m, l);
+      waddch(infopad, '\n');
+      wrapping = false;
+    } else {
+      int x, y DPKG_ATTR_UNUSED;
+
+      if (wrapping) {
+        getyx(infopad, y,x);
+        if (x+1 >= usemax) {
+          waddch(infopad,'\n');
+        } else {
+          waddch(infopad,' ');
+        }
+      }
+      for (;;) {
+        getyx(infopad, y,x);
+        ssize_t dosend = usemax - x;
+        if (l <= dosend) {
+          dosend=l;
+        } else {
+          ssize_t i = dosend;
+          while (i > 0 && m[i] != ' ') i--;
+          if (i > 0 || x > 0) dosend=i;
+        }
+        if (dosend) waddnstr(infopad, m, dosend);
+        while (dosend < l && m[dosend] == ' ') dosend++;
+        l-= dosend; m+= dosend;
+        if (l <= 0) break;
+        waddch(infopad,'\n');
+      }
+      wrapping = true;
+    }
+    if (*p == '\0')
+      break;
+    if (getcury(infopad) == (MAX_DISPLAY_INFO - 1)) {
+      waddstr(infopad,
+              "[The package description is too long and has been truncated...]");
+      break;
+    }
+    m= ++p;
+  }
+  debug(dbg_general, "baselist[%p]::wordwrapinfo() done", this);
+}
+
+baselist::~baselist() { }
-- 
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