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/*
* STFL - The Structured Terminal Forms Language/Library
* Copyright (C) 2006, 2007 Clifford Wolf <clifford@clifford.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_box.c: Widget types 'hbox' and 'vbox'
*/
#include "stfl_internals.h"
#include <stdlib.h>
#include <string.h>
struct box_data {
char type;
};
static void wt_vbox_init(struct stfl_widget *w)
{
struct box_data *d = calloc(1, sizeof(struct box_data));
d->type = 'V';
w->internal_data = d;
}
static void wt_hbox_init(struct stfl_widget *w)
{
struct box_data *d = calloc(1, sizeof(struct box_data));
d->type = 'H';
w->internal_data = d;
}
static void wt_box_done(struct stfl_widget *w)
{
free(w->internal_data);
}
static void wt_box_prepare(struct stfl_widget *w, struct stfl_form *f)
{
struct box_data *d = w->internal_data;
w->min_w = 0;
w->min_h = 0;
struct stfl_widget *c = w->first_child;
while (c) {
if (stfl_widget_getkv_int(c, L".display", 1)) {
c->type->f_prepare(c, f);
if (d->type == 'H') {
if (w->min_h < c->min_h)
w->min_h = c->min_h;
w->min_w += c->min_w;
} else {
if (w->min_w < c->min_w)
w->min_w = c->min_w;
w->min_h += c->min_h;
}
}
c = c->next_sibling;
}
}
static void wt_box_draw(struct stfl_widget *w, struct stfl_form *f, WINDOW *win)
{
struct box_data *d = w->internal_data;
int num_dyn_children = 0;
int min_w = 0, min_h = 0;
int i, j;
struct stfl_widget *c = w->first_child;
while (c)
{
if (stfl_widget_getkv_int(c, L".display", 1))
{
int size_w = stfl_widget_getkv_int(c, L".width", 0);
if (size_w < c->min_w) size_w = c->min_w;
int size_h = stfl_widget_getkv_int(c, L".height", 0);
if (size_h < c->min_h) size_h = c->min_h;
if (wcschr(stfl_widget_getkv_str(c, L".expand", L"vh"),
d->type == 'H' ? 'h' : 'v'))
num_dyn_children++;
if (d->type == 'H') {
min_w += size_w;
if (min_h < size_h)
min_h = size_h;
} else {
min_h += size_h;
if (min_w < size_w)
min_w = size_w;
}
}
c = c->next_sibling;
}
int box_x = w->x, box_y = w->y;
int box_w = w->w, box_h = w->h;
stfl_widget_style(w, f, win);
for (i=box_x; i<box_x+box_w; i++)
for (j=box_y; j<box_y+box_h; j++)
mvwaddch(win, j, i, ' ');
const wchar_t *tie = stfl_widget_getkv_str(w, L"tie", L"lrtb");
if (!wcschr(tie, L'l') && !wcschr(tie, L'r')) box_x += (box_w-min_w)/2;
if (!wcschr(tie, L'l') && wcschr(tie, L'r')) box_x += box_w-min_w;
if (!wcschr(tie, L'l') || !wcschr(tie, L'r')) box_w = min_w;
if (!wcschr(tie, L't') && !wcschr(tie, L'b')) box_y += (box_h-min_h)/2;
if (!wcschr(tie, L't') && wcschr(tie, L'b')) box_y += box_h-min_h;
if (!wcschr(tie, L't') || !wcschr(tie, L'b')) box_h = min_h;
int sizes_extra = (d->type == 'H' ? box_w - min_w : box_h - min_h);
int cursor = (d->type == 'H' ? box_x : box_y);
c = w->first_child;
for (i=0; c; i++)
{
if (stfl_widget_getkv_int(c, L".display", 1))
{
int size = stfl_widget_getkv_int(c,
d->type == 'H' ? L".width" : L".height", 0);
if (size < (d->type == 'H' ? c->min_w : c->min_h))
size = d->type == 'H' ? c->min_w : c->min_h;
if (wcschr(stfl_widget_getkv_str(c, L".expand", L"vh"),
d->type == 'H' ? 'h' : 'v')) {
int extra = sizes_extra / num_dyn_children--;
sizes_extra -= extra;
size += extra;
}
if (d->type == 'H') {
c->y = box_y;
c->x = cursor;
c->h = box_h;
c->w = size;
cursor += c->w;
} else {
c->x = box_x;
c->y = cursor;
c->w = box_w;
c->h = size;
cursor += c->h;
}
tie = stfl_widget_getkv_str(c, L".tie", L"lrtb");
if (!wcschr(tie, L'l') && !wcschr(tie, L'r')) c->x += (c->w - c->min_w)/2;
if (!wcschr(tie, L'l') && wcschr(tie, L'r')) c->x += c->w - c->min_w;
if (!wcschr(tie, L'l') || !wcschr(tie, L'r')) c->w = c->min_w;
if (!wcschr(tie, L't') && !wcschr(tie, L'b')) c->y += (c->h - c->min_h)/2;
if (!wcschr(tie, L't') && wcschr(tie, L'b')) c->y += c->h - c->min_h;
if (!wcschr(tie, L't') || !wcschr(tie, L'b')) c->h = c->min_h;
c->type->f_draw(c, f, win);
}
c = c->next_sibling;
}
}
static int wt_box_process(struct stfl_widget *w, struct stfl_widget *fw, struct stfl_form *f, wchar_t ch, int isfunckey)
{
struct box_data *d = w->internal_data;
if (d->type == 'H')
{
if (stfl_matchbind(w, ch, isfunckey, L"left", L"LEFT"))
return stfl_focus_prev(w, fw, f);
if (stfl_matchbind(w, ch, isfunckey, L"right", L"RIGHT"))
return stfl_focus_next(w, fw, f);
}
if (d->type == 'V')
{
if (stfl_matchbind(w, ch, isfunckey, L"up", L"UP"))
return stfl_focus_prev(w, fw, f);
if (stfl_matchbind(w, ch, isfunckey, L"down", L"DOWN"))
return stfl_focus_next(w, fw, f);
}
return 0;
}
struct stfl_widget_type stfl_widget_type_vbox = {
L"vbox",
wt_vbox_init,
wt_box_done,
0, // f_enter
0, // f_leave
wt_box_prepare,
wt_box_draw,
wt_box_process
};
struct stfl_widget_type stfl_widget_type_hbox = {
L"hbox",
wt_hbox_init,
wt_box_done,
0, // f_enter
0, // f_leave
wt_box_prepare,
wt_box_draw,
wt_box_process
};
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