libui/unix/main.c

75 lines
1.3 KiB
C

// 6 april 2015
#include "uipriv_unix.h"
uiInitOptions options;
const char *uiInit(uiInitOptions *o)
{
GError *err = NULL;
const char *msg;
options = *o;
if (gtk_init_with_args(NULL, NULL, NULL, NULL, NULL, &err) == FALSE) {
msg = g_strdup(err->message);
g_error_free(err);
return msg;
}
initAlloc();
return NULL;
}
void uiUninit(void)
{
uninitMenus();
uninitAlloc();
}
void uiFreeInitError(const char *err)
{
g_free((gpointer) err);
}
void uiMain(void)
{
gtk_main();
}
// gtk_main_quit() may run immediately, or it may wait for other pending events; "it depends" (thanks mclasen in irc.gimp.net/#gtk+)
// PostQuitMessage() on Windows always waits, so we must do so too
// we'll do it by using an idle callback
static gboolean quit(gpointer data)
{
gtk_main_quit();
return FALSE;
}
void uiQuit(void)
{
gdk_threads_add_idle(quit, NULL);
}
struct queued {
void (*f)(void *);
void *data;
};
static gboolean doqueued(gpointer data)
{
struct queued *q = (struct queued *) data;
(*(q->f))(q->data);
uiFree(q);
return FALSE;
}
// TODO document that the effect of calling this function after uiQuit() is called (either directly or via a nonzero return to uiShouldQuit()) is undefined
void uiQueueMain(void (*f)(void *data), void *data)
{
struct queued *q;
q = uiNew(struct queued);
q->f = f;
q->data = data;
gdk_threads_add_idle(doqueued, q);
}