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pphandle.c
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pphandle.c
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/*
* CFLIB, a GEM library for ATARI/TOS
* Copyright (C) 1999, 2000 Christian Felsch
*
* Modified for FreeMiNT CVS by Frank Naumann <fnaumann@freemint.de>
*
* Please send suggestions, patches or bug reports to me or
* the MiNT mailing list.
*
*
* 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 2.1 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "intern.h"
_WORD handle_popup(OBJECT *dial, _WORD dial_obj, OBJECT *pop, _WORD pop_obj, _WORD mode)
{
char active_str[50] = "", s[50];
_WORD first, last, item, i, first_offset;
_WORD x, y;
MENU m1, m2;
GRECT r;
_WORD down_pop;
if (pop == NULL)
return -1;
first = pop[pop_obj].ob_head;
while (!popup_valid_item(pop, first))
first++;
last = pop[pop_obj].ob_tail;
while (!popup_valid_item(pop, last))
last--;
/* falls erste Spalte z.B. Farbmarke */
first_offset = first - pop[pop_obj].ob_head;
item = first;
down_pop = FALSE;
if (dial != NULL)
{
/* Popup-Typ ermitteln */
down_pop = (get_obtype(dial, dial_obj, NULL) == G_BOXCHAR);
if (!down_pop)
{
/* Zun„chst das aktuelle, im Dialog eingetragene Popup-Item suchen */
get_string(dial, dial_obj, active_str);
item = first;
while (item <= last)
{
get_string(pop, item, s);
if (strcmp(active_str, s) == 0)
break;
item++;
}
if (item > last) /* nicht gefunden */
item = first;
}
}
switch (mode)
{
case POP_OPEN:
/* Position des Popups ermitteln */
if (dial != NULL)
{
objc_offset(dial, dial_obj, &x, &y);
if (down_pop)
x -= (pop[1].ob_width - dial[dial_obj].ob_width);
else
{
/* mehrspaltiges Popups? */
if (pop[pop_obj].ob_height <= ((item - first) * gl_hchar))
{
get_objframe(pop, item, &r);
x -= r.g_w;
item -= pop[pop_obj].ob_height / gl_hchar;
}
}
/* aužerhalb des Bildschirms? */
get_objframe(pop, pop_obj, &r);
if (x < gl_desk.g_x)
x = gl_desk.g_x;
if ((x + r.g_w) > (gl_desk.g_x + gl_desk.g_w))
x = (gl_desk.g_x + gl_desk.g_w) - r.g_w;
i = (last - item + 1) * gl_hchar;
if ((y + i) > (gl_desk.g_y + gl_desk.g_h))
y = (gl_desk.g_y + gl_desk.g_h) - i;
i = (item - first) * gl_hchar;
if (y - i < gl_desk.g_y)
y = gl_desk.g_y + i;
}
else
{
graf_mkstate(&x, &y, &i, &i);
get_objframe(pop, item, &r);
x -= r.g_w / 2;
y -= r.g_h / 2;
if (first_offset > 0)
y -= (first_offset * gl_hchar);
}
m1.mn_tree = pop;
m1.mn_menu = pop_obj;
m1.mn_item = item;
i = cf_menu_popup(&m1, x, y, &m2, 1, first_offset);
if (i != 0)
item = m2.mn_item;
else
item = 0;
break;
case POP_CYCLE:
i = 0;
do
{
item++;
i++;
if (item > last)
item = first;
} while (((pop[item].ob_state & OS_DISABLED) || !(pop[item].ob_flags & OF_SELECTABLE)) && i <= last - first);
if (i > last - first)
item = 0;
break;
default:
debug("handle_popup: unbekannter Modus %d.\n", mode);
break;
}
/* Text des neuen Popup-Items in den Dialog eintragen und neu zeichnen */
if (!down_pop && item > 0 && dial != NULL)
{
get_string(pop, item, s);
set_string(dial, dial_obj, s);
get_objframe(dial, dial_obj, &r);
objc_draw_grect(dial, dial_obj, 1, &r);
}
return item;
}