gambas-source-code/main/lib/gui/main.c

153 lines
3.2 KiB
C
Raw Normal View History

/***************************************************************************
main.c
(c) 2000-2017 Benoît Minisini <benoit.minisini@gambas-basic.org>
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, 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., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
***************************************************************************/
#define __MAIN_C
#include "main.h"
enum { USE_NOTHING, USE_GB_QT4, USE_GB_QT5, USE_GB_GTK, USE_GB_GTK3 };
static char use_list[4][3] = {
{ USE_GB_QT5, USE_GB_GTK, USE_GB_GTK3 },
{ USE_GB_QT4, USE_GB_GTK3, USE_GB_GTK },
{ USE_GB_GTK3, USE_GB_QT4, USE_GB_QT5 },
{ USE_GB_GTK, USE_GB_QT5, USE_GB_QT4 },
};
GB_INTERFACE GB EXPORT;
// Prevents gbi3 from complaining
GB_DESC *GB_CLASSES[] EXPORT =
{
NULL
};
char *GB_INCLUDE EXPORT = "gb.qt4|gb.qt5|gb.gtk|gb.gtk3";
static bool _debug = FALSE;
const char *get_name(int use)
{
switch (use)
{
case USE_GB_QT4: return "gb.qt4";
case USE_GB_QT5: return "gb.qt5";
case USE_GB_GTK3: return "gb.gtk3";
default: return "gb.gtk";
}
}
#include "gb_gui_test_temp.h"
int EXPORT GB_INIT(void)
{
int use = USE_NOTHING;
int use_other = USE_NOTHING;
char *env;
const char *comp;
int i;
const char *fail;
char not_found[32];
env = getenv("GB_GUI");
if (env)
{
if (strcmp(env, "gb.qt4") == 0)
use = USE_GB_QT4;
else if (strcmp(env, "gb.qt5") == 0)
use = USE_GB_QT5;
else if (strcmp(env, "gb.gtk") == 0)
use = USE_GB_GTK;
else if (strcmp(env, "gb.gtk3") == 0)
use = USE_GB_GTK3;
}
env = getenv("GB_GUI_DEBUG");
if (env && strcmp(env, "0"))
_debug = TRUE;
if (use == USE_NOTHING)
{
use = GUI_should_use();
if (use == USE_NOTHING)
use = USE_GB_GTK3;
}
if (_debug)
fprintf(stderr, "gb.gui: checking %s...\n", get_name(use));
fail = GUI_can_use(use);
if (fail)
{
strcpy(not_found, fail);
use_other = USE_NOTHING;
for (i = 0; i <= 2; i++)
{
if (_debug)
fprintf(stderr, "gb.gui: checking %s...\n", get_name(use_list[use - 1][i]));
if (!GUI_can_use(use_list[use - 1][i]))
{
use_other = use_list[use - 1][i];
break;
}
}
if (use_other)
{
fprintf(stderr, "gb.gui: warning: '%s' component not found, using '%s' instead\n", not_found, get_name(use_other));
use = use_other;
}
else
{
fprintf(stderr, "gb.gui: error: '%s' component not found, unable to find any GUI replacement component\n", not_found);
exit(1);
}
}
comp = get_name(use);
if (GB.Component.Load(comp))
{
fprintf(stderr, "gb.gui: error: cannot load component '%s'\n", comp);
exit(1);
}
else
{
if (_debug)
fprintf(stderr, "gb.gui: loading '%s'\n", comp);
}
setenv("GB_GUI", comp, TRUE);
return 0;
}
void EXPORT GB_EXIT()
{
}