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// Copyright (C) 2003 Mooffie <mooffie@typo.co.il>
//
// This program 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 program 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, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
#include <config.h>
#include "widget.h"
#include "mk_wcwidth.h"
#include "bidi.h"
#include "shaping.h"
#include "my_wctob.h"
Widget::Widget()
{
wnd = NULL;
modal = false;
}
Widget::~Widget()
{
destroy_window();
}
bool Widget::create_window(int lines, int cols)
{
if (terminal::is_interactive()) {
wnd = newwin(lines, cols, 0, 0);
enable_keypad();
}
return wnd != NULL;
}
void Widget::resize(int lines, int columns, int y, int x)
{
wresize(wnd, lines, columns);
mvwin(wnd, y, x);
}
void Widget::put_unichar(unichar ch, unichar bad_repr)
{
#ifdef HAVE_WIDE_CURSES
if (!terminal::is_utf8 && WCTOB(ch) == EOF)
ch = bad_repr;
waddnwstr(wnd, (wchar_t*)&ch, 1);
#else
int ich = terminal::force_iso88598 ? unicode_to_iso88598(ch) : WCTOB(ch);
if (ich == EOF)
ich = bad_repr;
waddch(wnd, (unsigned char)ich);
#endif
}
// draw_string() - draws a UTF-8 string. This is a very simple routine and
// it's used by the most simple widgets only (like Label).
void Widget::draw_string(const char *u8, bool align_right)
{
unistring text, vis_text;
text.init_from_utf8(u8);
// trim string to fit window width
int wnd_x, dummy;
getyx(wnd, dummy, wnd_x);
int swidth = wnd_x;
unichar *trim_pos = text.begin();
while (trim_pos < text.end()) {
int char_width = mk_wcwidth(*trim_pos);
if (swidth + char_width > window_width())
break;
swidth += char_width;
trim_pos++;
}
text.erase(trim_pos, text.end());
// convert to visual
direction_t dir = BiDi::determine_base_dir(text.begin(), text.size(),
algoUnicode);
BiDi::simple_log2vis(text, dir, vis_text);
if (terminal::do_arabic_shaping) {
int new_len = shape(vis_text.begin(), vis_text.len());
swidth -= vis_text.len() - new_len;
vis_text.resize(new_len);
}
// draw the string
if (align_right && dir == dirRTL)
wmove(wnd, 0, window_width() - swidth);
for (int i = 0; i < vis_text.len(); i++) {
put_unichar(vis_text[i], '?');
}
// reposition the cursor
if (align_right && dir == dirRTL)
wmove(wnd, 0, window_width() - swidth - 1);
}
void Widget::signal_error()
{
// I don't like those awful beeps,
// but people may not be familiar with flashes.
//flash();
beep();
}
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