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/*
* STFL - The Structured Terminal Forms Language/Library
* Copyright (C) 2006, 2007 Clifford Wolf <clifford@clifford.at>
* Copyright (C) 2006 Andreas Krennmair <ak@synflood.at>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA
*
* wt_textview.c: Widget type 'textview'
*/
#include "stfl_internals.h"
#include <string.h>
#include <stdlib.h>
#if 0
static void fix_offset_pos(struct stfl_widget *w)
{
int offset = stfl_widget_getkv_int(w, "offset", 0);
int pos = stfl_widget_getkv_int(w, "pos", 0);
int orig_offset = offset;
int orig_pos = pos;
while (pos < offset)
offset--;
if (w->h > 0)
while (pos >= offset+w->h)
offset++;
int maxpos = -1;
struct stfl_widget *c = w->first_child;
while (c) {
maxpos++;
c = c->next_sibling;
}
if (maxpos >= 0 && pos > maxpos)
pos = maxpos;
if (offset != orig_offset)
stfl_widget_setkv_int(w, "offset", offset);
if (pos != orig_pos)
stfl_widget_setkv_int(w, "pos", pos);
}
#endif
static void wt_textview_prepare(struct stfl_widget *w, struct stfl_form *f)
{
struct stfl_widget *c = w->first_child;
w->min_w = 1;
w->min_h = 5;
if (c)
w->allow_focus = 1;
while (c) {
const wchar_t * text = stfl_widget_getkv_str(c, L"text", L"");
int len = wcswidth(text, wcslen(text));
w->min_w = len > w->min_w ? len : w->min_w;
c = c->next_sibling;
}
}
static void wt_textview_draw(struct stfl_widget *w, struct stfl_form *f, WINDOW *win)
{
//fix_offset_pos(w);
int offset = stfl_widget_getkv_int(w, L"offset", 0);
int is_richtext = stfl_widget_getkv_int(w, L"richtext", 0);
const wchar_t *style_normal = stfl_widget_getkv_str(w, L"style_normal", L"");
const wchar_t *style_end = stfl_widget_getkv_str(w, L"style_end", L"");
struct stfl_widget *c;
int i;
stfl_style(win, style_normal);
for (i=0, c=w->first_child; c && i < offset+w->h; i++, c=c->next_sibling)
{
const wchar_t *text = stfl_widget_getkv_str(c, L"text", L"");
if (i < offset) {
if (is_richtext)
stfl_print_richtext(w, win, w->y, w->x, text, 0, style_normal, 0);
continue;
}
if (is_richtext) {
stfl_print_richtext(w, win, w->y+i-offset, w->x, text, w->w, style_normal, 0);
} else {
mvwaddnwstr(win, w->y+i-offset, w->x, text, w->w);
}
}
stfl_style(win, style_end);
while (i<offset+w->h) {
mvwaddnwstr(win,w->y+i-offset,w->x,L"~",w->w);
++i;
}
if (f->current_focus_id == w->id)
f->root->cur_x = f->root->cur_y = f->cursor_x = f->cursor_y = -1;
}
static int wt_textview_process(struct stfl_widget *w, struct stfl_widget *fw, struct stfl_form *f, wchar_t ch, int isfunckey)
{
//int pos = stfl_widget_getkv_int(w, "pos", 0);
int offset = stfl_widget_getkv_int(w,L"offset",0);
int maxoffset = -1;
struct stfl_widget *c = w->first_child;
while (c) {
maxoffset++;
c = c->next_sibling;
}
if (offset > 0 && stfl_matchbind(w, ch, isfunckey, L"up", L"UP")) {
stfl_widget_setkv_int(w, L"offset", offset-1);
//fix_offset_pos(w);
return 1;
}
if (offset < maxoffset && stfl_matchbind(w, ch, isfunckey, L"down", L"DOWN")) {
stfl_widget_setkv_int(w, L"offset", offset+1);
//fix_offset_pos(w);
return 1;
}
if (stfl_matchbind(w, ch, isfunckey, L"page_up", L"PPAGE")) {
if ((offset - w->h + 1) > 0) { // XXX: first page handling won't work with that
stfl_widget_setkv_int(w, L"offset", offset - w->h + 1);
} else {
stfl_widget_setkv_int(w, L"offset", 0);
}
return 1;
}
if (stfl_matchbind(w, ch, isfunckey, L"page_down", L"NPAGE")) {
if ((offset + w->h - 1) < maxoffset) { // XXX: last page handling won't work with that
stfl_widget_setkv_int(w, L"offset", offset + w->h - 1);
} else {
stfl_widget_setkv_int(w, L"offset", maxoffset);
}
return 1;
}
if (stfl_matchbind(w, ch, isfunckey, L"home", L"HOME")) {
stfl_widget_setkv_int(w, L"offset", 0);
return 1;
}
if (stfl_matchbind(w, ch, isfunckey, L"end", L"END")) {
stfl_widget_setkv_int(w, L"offset", (maxoffset - w->h + 2) < 0 ? 0 : maxoffset - w->h + 2);
return 1;
}
return 0;
}
struct stfl_widget_type stfl_widget_type_textview = {
L"textview",
0, // f_init
0, // f_done
0, // f_enter
0, // f_leave
wt_textview_prepare,
wt_textview_draw,
wt_textview_process,
};
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