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tasksel
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Lots of redrawing fixes and wordwrapping fixes. Not completely done yet. 

Added changelog file to help track changes.
Added myself to the maintainers file for tasksel
keep-around/43e990ab3f4cc50982f8dbc32e3465ca7c827876
Randolph Chung 23 years ago
parent
bf867b841b
commit
cb74a46886
6 changed files with 149 additions and 94 deletions
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  1. 4
      ChangeLog
  2. 2
      scratch/flowtest.c
  3. 203
      slangui.c
  4. 8
      slangui.h
  5. 22
      strutl.c
  6. 4
      tasksel.c

4
ChangeLog
View File

@ -0,0 +1,4 @@
19991122
- fixed some redraw bugs
- better word wrapping support
- fixed some memory leaks

2
scratch/flowtest.c
View File

@ -5,7 +5,7 @@
int main(int argc, char**argv)
{
char *buf;
char *S1 = "99 bottles of beer on the wall, 99 bottles of beer, take one down, pass it around";
char *S1 = "99 bottles of beer on the\rwall, 99 bottles\r of beer, take one down, pass it around";
char *S2 = "99bottlesofbeeronthewall,99bottlesofbeer,takeonedown,passitaround";
buf = reflowtext(30, S1);

203
slangui.c
View File

@ -1,10 +1,11 @@
/* $Id: slangui.c,v 1.3 1999/11/21 23:15:47 cech Exp $ */
/* $Id: slangui.c,v 1.4 1999/11/23 05:12:43 tausq Exp $ */
/* slangui.c - SLang user interface routines */
/* TODO: the redraw code is a bit broken, also this module is usually way too many
/* TODO: the redraw code is a bit broken, also this module is using way too many
* global vars */
#include "slangui.h"
#include <slang.h>
#include <libintl.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
@ -22,16 +23,25 @@
#define POINTEROBJ 5
#define BUTTONOBJ 6
#define CHOOSERWINDOW 0
#define DESCWINDOW 1
#define HELPWINDOW 2
#define ROWS SLtt_Screen_Rows
#define COLUMNS SLtt_Screen_Cols
struct _chooserinfo_t {
int coloffset;
int rowoffset;
int height;
int width;
int index;
int topindex;
int whichwindow;
};
/* Module private variables */
static int _chooser_coloffset = 5;
static int _chooser_rowoffset = 3;
static int _chooser_height = 0;
static int _chooser_width = 0;
static int _chooser_topindex = 0;
static int _resized = 0;
static struct _chooserinfo_t _chooserinfo = {3, 3, 0, 0, 0, 0, 0};
static struct packages_t *_packages = NULL;
static struct packages_t *_taskpackages = NULL;
static struct package_t **_taskpackagesary = NULL;
@ -82,30 +92,51 @@ int ui_shutdown(void)
void ui_resize(void)
{
char buf[160];
/* SIGWINCH handler */
if (-1 == SLang_init_tty(-1, 0, 1)) DIE(_("Unable to initialize the terminal"));
SLtt_get_terminfo();
if (-1 == SLsmg_init_smg()) DIE(_("Unable to initialize screen output"));
if (-1 == SLkp_init()) DIE(_("Unable to initialize keyboard interface"));
/*
if (SLtt_Screen_Rows < 20 || SLtt_Screen_Cols < 70) {
DIE(_("Sorry, tasksel needs a terminal with at least 70 columns and 20 rows"));
}
*/
_chooserinfo.height = ROWS - 2 * _chooserinfo.rowoffset;
_chooserinfo.width = COLUMNS - 2 * _chooserinfo.coloffset;
SLsmg_cls();
/* Show version and status lines */
SLsmg_set_color(STATUSOBJ);
snprintf(buf, 160, "%s v%s - %s",
_(" Debian Task Installer"), VERSION,
_("(c) 1999 SPI and others "));
write_centered_str(0, 0, COLUMNS, buf);
_chooser_height = ROWS - 2 * _chooser_rowoffset;
_chooser_width = COLUMNS - 2 * _chooser_coloffset;
ui_drawscreen(0);
_resized = 1;
write_centered_str(ROWS-1, 0, COLUMNS,
_(" h - Help SPACE - Toggle selection i - Task info q - Exit"));
switch (_chooserinfo.whichwindow) {
case CHOOSERWINDOW: ui_drawscreen(); break;
case HELPWINDOW: ui_showhelp(); break;
case DESCWINDOW: ui_showpackageinfo(); break;
}
}
int ui_eventloop(void)
{
int done = 0;
int ret = 0;
int pos = 0;
int c, i;
_chooser_topindex = 0;
_chooserinfo.topindex = 0;
_chooserinfo.index = 0;
ui_redrawcursor(0);
while (!done) {
@ -114,43 +145,50 @@ int ui_eventloop(void)
switch (c) {
case SL_KEY_UP:
case SL_KEY_LEFT:
if (pos > 0) pos--; else pos = _taskpackages->count - 1;
ui_redrawcursor(pos);
if (_chooserinfo.index > 0)
_chooserinfo.index--;
else
_chooserinfo.index = _taskpackages->count - 1;
ui_redrawcursor(_chooserinfo.index);
break;
case SL_KEY_DOWN:
case SL_KEY_RIGHT:
if (pos < _taskpackages->count - 1) pos++; else pos = 0;
ui_redrawcursor(pos);
if (_chooserinfo.index < _taskpackages->count - 1)
_chooserinfo.index++;
else
_chooserinfo.index = 0;
ui_redrawcursor(_chooserinfo.index);
break;
case SL_KEY_PPAGE:
pos -= _chooser_height;
if (pos < 0) pos = 0;
ui_redrawcursor(pos);
_chooserinfo.index -= _chooserinfo.height;
if (_chooserinfo.index < 0) _chooserinfo.index = 0;
ui_redrawcursor(_chooserinfo.index);
break;
case SL_KEY_NPAGE:
pos += _chooser_height;
if (pos >= _taskpackages->count - 1) pos = _taskpackages->count - 1;
ui_redrawcursor(pos);
_chooserinfo.index += _chooserinfo.height;
if (_chooserinfo.index >= _taskpackages->count - 1)
_chooserinfo.index = _taskpackages->count - 1;
ui_redrawcursor(_chooserinfo.index);
break;
case SL_KEY_ENTER: case '\r': case '\n':
case ' ': ui_toggleselection(pos); break;
case ' ': ui_toggleselection(_chooserinfo.index); break;
case 'A': case 'a':
for (i = 0; i < _taskpackages->count; i++) _taskpackagesary[i]->selected = 1;
ui_drawscreen(pos);
ui_drawscreen();
break;
case 'N': case 'n':
for (i = 0; i < _taskpackages->count; i++) _taskpackagesary[i]->selected = 0;
ui_drawscreen(pos);
ui_drawscreen();
break;
case 'H': case 'h': case SL_KEY_F(1): ui_showhelp(); break;
case 'I': case 'i': ui_showpackageinfo(pos); break;
case 'I': case 'i': ui_showpackageinfo(); break;
case 'Q': case 'q': done = 1; break;
}
}
@ -161,41 +199,26 @@ int ui_drawbox(int obj, int r, int c, unsigned int dr, unsigned int dc)
{
SLsmg_set_color(obj);
SLsmg_draw_box(r, c, dr, dc);
SLsmg_fill_region(r+1, c+1, dr-2, dc-2, ' ');
return 0;
}
int ui_drawscreen(int index)
int ui_drawscreen(void)
{
int i;
char buf[160];
SLsmg_cls();
/* Show version and status lines */
SLsmg_set_color(STATUSOBJ);
snprintf(buf, 160, "%s v%s - %s",
_(" Debian Installation Task Selector"), VERSION,
_("(c) 1999 SPI and others "));
write_centered_str(0, 0, COLUMNS, buf);
write_centered_str(ROWS-1, 0, COLUMNS,
_(" h - Help SPACE - Toggle selection i - Task info q - Exit"));
/* Draw the chooser screen */
SLsmg_set_color(DEFAULTOBJ);
write_centered_str(1, 0, COLUMNS,
_("Select the task package(s) appropriate for your system:"));
ui_drawbox(CHOOSEROBJ, _chooser_rowoffset - 1, _chooser_coloffset - 1, _chooser_height + 2, _chooser_width + 2);
ui_drawbox(CHOOSEROBJ, _chooserinfo.rowoffset - 1, _chooserinfo.coloffset - 1, _chooserinfo.height + 2, _chooserinfo.width + 2);
for (i = 0; i < _taskpackages->count && i < _chooser_height; i++)
ui_drawchooseritem(i);
for (i = _chooserinfo.topindex; i < _chooserinfo.topindex + _chooserinfo.height; i++)
if (i < _taskpackages->count) ui_drawchooseritem(i);
ui_redrawcursor(index);
ui_redrawcursor(_chooserinfo.index);
SLsmg_refresh();
_resized = 0;
return 0;
}
@ -208,13 +231,16 @@ void ui_button(int row, int col, char *txt)
SLsmg_write_char(' ');
}
void ui_dialog(int row, int col, int height, int width, char *title, char *msg)
void ui_dialog(int row, int col, int height, int width, char *title, char *msg, int reflow)
{
char *reflowbuf;
int ri, c, pos;
char *line, *txt;
reflowbuf = reflowtext(width - 4, msg);
if (reflow)
reflowbuf = reflowtext(width - 2, msg);
else
reflowbuf = msg;
SLsmg_set_color(DIALOGOBJ);
@ -234,7 +260,7 @@ void ui_dialog(int row, int col, int height, int width, char *title, char *msg)
ri = 0;
while ((line = strsep(&txt, "\n")) && (ri < height - 3)) {
SLsmg_gotorc(row + 1 + ri, col + 1);
SLsmg_write_nstring(line, width - 4);
SLsmg_write_nstring(line, width - 2);
ri++;
}
}
@ -244,7 +270,9 @@ void ui_dialog(int row, int col, int height, int width, char *title, char *msg)
SLsmg_refresh();
do {
c = SLkp_getkey();
} while (!(c == '\n' || c == '\r' || c == SL_KEY_ENTER || isspace(c)) && (_resized == 0));
} while (!(c == '\n' || c == '\r' || c == SL_KEY_ENTER || isspace(c)));
if (reflow) FREE(reflowbuf);
}
void ui_drawchooseritem(int index)
@ -252,15 +280,15 @@ void ui_drawchooseritem(int index)
char buf[1024];
ASSERT(_taskpackages != NULL);
if (index >= _taskpackages->count) DIE("Index out of bounds: %d >= %d", index, _taskpackages->count);
if (index < _chooser_topindex) return;
if (index < _chooserinfo.topindex) return;
SLsmg_set_color(CHOOSEROBJ);
SLsmg_gotorc(_chooser_rowoffset + index - _chooser_topindex, _chooser_coloffset);
SLsmg_gotorc(_chooserinfo.rowoffset + index - _chooserinfo.topindex, _chooserinfo.coloffset);
snprintf(buf, 1024, " (%c) %s: %s",
(_taskpackagesary[index]->selected == 0 ? ' ' : '*'),
_taskpackagesary[index]->name, _taskpackagesary[index]->shortdesc);
SLsmg_write_nstring(buf, _chooser_width);
_taskpackagesary[index]->name+5, _taskpackagesary[index]->shortdesc);
SLsmg_write_nstring(buf, _chooserinfo.width);
}
void ui_toggleselection(int index)
@ -274,27 +302,21 @@ void ui_toggleselection(int index)
_taskpackagesary[index]->selected = 0;
SLsmg_set_color(CHOOSEROBJ);
SLsmg_gotorc(_chooser_rowoffset + index - _chooser_topindex, _chooser_coloffset + 3);
SLsmg_gotorc(_chooserinfo.rowoffset + index - _chooserinfo.topindex, _chooserinfo.coloffset + 3);
if (_taskpackagesary[index]->selected == 0)
SLsmg_write_string("( )");
else
SLsmg_write_string("(*)");
SLsmg_gotorc(_chooser_rowoffset + index - _chooser_topindex, _chooser_coloffset + 2);
SLsmg_gotorc(_chooserinfo.rowoffset + index - _chooserinfo.topindex, _chooserinfo.coloffset + 2);
SLsmg_refresh();
}
void ui_showhelp(void)
{
ui_dialog(3, 3, ROWS-6, COLUMNS-6, "Help", HELPTXT);
ui_drawscreen(0);
}
void ui_redrawchooser(int index)
void ui_redrawchooser(void)
{
int i;
for (i = _chooser_topindex; i < _chooser_topindex + _chooser_height; i++)
for (i = _chooserinfo.topindex; i < _chooserinfo.topindex + _chooserinfo.height; i++)
if (i < _taskpackages->count) ui_drawchooseritem(i);
}
@ -302,50 +324,65 @@ void ui_redrawcursor(int index)
{
/* Check to see if we have to scroll the selection */
if (index + 1 - _chooser_height > _chooser_topindex) {
_chooser_topindex = index + 1 - _chooser_height;
ui_redrawchooser(index);
} else if (index < _chooser_topindex) {
_chooser_topindex = 0;
ui_redrawchooser(index);
if (index + 1 - _chooserinfo.height > _chooserinfo.topindex) {
_chooserinfo.topindex = index + 1 - _chooserinfo.height;
ui_redrawchooser();
} else if (index < _chooserinfo.topindex) {
_chooserinfo.topindex = 0;
ui_redrawchooser();
}
SLsmg_set_color(POINTEROBJ);
SLsmg_fill_region(_chooser_rowoffset, _chooser_coloffset, _chooser_height, 3, ' ');
SLsmg_gotorc(_chooser_rowoffset + index - _chooser_topindex, _chooser_coloffset);
SLsmg_fill_region(_chooserinfo.rowoffset, _chooserinfo.coloffset, _chooserinfo.height, 3, ' ');
SLsmg_gotorc(_chooserinfo.rowoffset + index - _chooserinfo.topindex, _chooserinfo.coloffset);
SLsmg_write_string("->");
SLsmg_refresh();
}
void ui_showpackageinfo(int index)
void ui_showhelp(void)
{
_chooserinfo.whichwindow = HELPWINDOW;
ui_dialog(3, 3, ROWS-6, COLUMNS-6, _("Help"), HELPTXT, 1);
_chooserinfo.whichwindow = CHOOSERWINDOW;
ui_drawscreen();
}
void ui_showpackageinfo(void)
{
struct package_t *pkg, *deppkg;
int i;
int width;
int width = COLUMNS - 6;
char buf[4096];
char shortbuf[256];
char *desc = NULL;
int bufleft;
int index = _chooserinfo.index;
ASSERT(_taskpackages != NULL);
_chooserinfo.whichwindow = DESCWINDOW;
if (index >= _taskpackages->count) DIE("Index out of bounds: %d >= %d", index, _taskpackages->count);
pkg = _taskpackagesary[index];
ASSERT(pkg != NULL);
desc = reflowtext(width, pkg->longdesc);
/* pack buf with package info */
snprintf(buf, sizeof(buf), "Name: %s\nDescription:\n%s\n\nDependent packages:\n", pkg->name, pkg->longdesc);
snprintf(buf, sizeof(buf), "Description:\n%s\n\nDependent packages:\n", desc);
FREE(desc);
bufleft = sizeof(buf) - strlen(buf) - 1;
width = COLUMNS - 5;
ASSERT(width < sizeof(shortbuf));
for (i = 0; i < pkg->dependscount; i++) {
deppkg = packages_find(_packages, pkg->depends[i]);
snprintf(shortbuf, width, "%s - %s\n", pkg->depends[i],
(deppkg && deppkg->shortdesc ? deppkg->shortdesc : "(no description available)"));
snprintf(shortbuf, sizeof(shortbuf), "%s - %s\n", pkg->depends[i],
((deppkg && deppkg->shortdesc) ? deppkg->shortdesc : _("(no description available)")));
strncat(buf, shortbuf, bufleft);
bufleft = sizeof(buf) - strlen(buf) - 1;
}
ui_dialog(2, 2, ROWS-4, COLUMNS-4, pkg->name, buf);
ui_drawscreen(index);
ui_dialog(2, 2, ROWS-4, COLUMNS-4, pkg->name, buf, 0);
_chooserinfo.whichwindow = CHOOSERWINDOW;
ui_drawscreen();
}

8
slangui.h
View File

@ -11,14 +11,14 @@ int ui_eventloop(void);
int ui_drawbox(int obj, int x, int y, unsigned int dx, unsigned int dy);
void ui_button(int row, int col, char *txt);
void ui_dialog(int row, int col, int height, int width, char *title, char *msg);
void ui_dialog(int row, int col, int height, int width, char *title, char *msg, int reflow);
int ui_drawscreen(int index);
int ui_drawscreen(void);
void ui_drawchooseritem(int index);
void ui_toggleselection(int index);
void ui_showhelp(void);
void ui_showpackageinfo(int index);
void ui_redrawchooser(int index);
void ui_showpackageinfo(void);
void ui_redrawchooser(void);
void ui_redrawcursor(int index);
#endif

22
strutl.c
View File

@ -1,23 +1,36 @@
/* $Id: strutl.c,v 1.1 1999/11/21 22:01:04 tausq Exp $ */
/* $Id: strutl.c,v 1.2 1999/11/23 05:12:43 tausq Exp $ */
#include "strutl.h"
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include "util.h"
#include "macros.h"
char *reflowtext(int width, char *txt)
char *reflowtext(int width, char *ptxt)
{
/* A simple greedy text formatting algorithm. Tries to put as many characters as possible
* on a line without going over width
*
* Uses \r for hard line breaks. All \n not followed by a space are stripped.
* Returns a malloc'ed string buffer that should be freed by the caller
*/
char *buf;
char *txt;
char *begin, *end;
if (txt == NULL) return NULL;
buf = MALLOC(strlen(txt) + strlen(txt) / width + 2);
if (ptxt == NULL) return NULL;
txt = STRDUP(ptxt);
begin = txt;
while (*begin != 0) {
if (*begin == '\n' && !isspace(*(begin+1))) *begin = ' ';
if (*begin == '\r') *begin = '\n';
begin++;
}
buf = MALLOC(strlen(txt) + strlen(txt) / width * 2 + 2);
buf[0] = 0;
begin = txt;
@ -52,6 +65,7 @@ char *reflowtext(int width, char *txt)
}
}
}
FREE(txt);
return buf;
}

4
tasksel.c
View File

@ -1,4 +1,4 @@
/* $Id: tasksel.c,v 1.2 1999/11/21 22:35:25 tausq Exp $ */
/* $Id: tasksel.c,v 1.3 1999/11/23 05:12:43 tausq Exp $ */
#include "tasksel.h"
#include <string.h>
@ -56,7 +56,7 @@ int main(int argc, char * const argv[])
packages_readlist(&taskpkgs, &packages);
ui_init(argc, argv, &taskpkgs, &packages);
ui_drawscreen(0);
ui_drawscreen();
r = ui_eventloop();
ui_shutdown();

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