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/*
* Very simple program, that has been used by us
* (V. Babin <babin :at: users.sourceforge.net> and
* S. Kondrat <valiska :at: users.sourceforge.net>)
* during toying with libmng (http://www.libmng.com)
*
* License: GPL :-))
*
* 7 July 2001: added key-press/button-press handling to exit viewer without
* window-manager help; added libmng version info [Greg Roelofs]
*/
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <gtk/gtk.h>
#include "gtk-mng-view.h"
#define BLOCK_SIZE 4096
static guint
read_file (const gchar* file_name, guchar ** ptr)
{
gint fd;
guint size = 0;
guint bytes_read = 0;
if ((fd = open (file_name, O_RDONLY)) == -1)
{
perror (file_name);
* ptr = NULL;
return 0;
}
* ptr = g_new (guchar, BLOCK_SIZE);
while ((bytes_read = read (fd, * ptr + size, BLOCK_SIZE)))
{
size += bytes_read;
* ptr = (guchar *) g_realloc (* ptr, size + BLOCK_SIZE);
}
close (fd);
* ptr = (guchar *) g_realloc (* ptr, size);
return size;
}
int
main (int argc, char ** argv)
{
GtkMngView * mng_view;
GtkWidget * window;
GtkWidget * align;
GtkWidget * frame;
guchar * mng_data = NULL;
guint mng_data_size;
if (argc < 2)
{
g_print ("Usage: %s <file.mng>\n\n", argv[0]);
g_print (" Compiled with GTK+ %d.%d.%d; using GTK+ %d.%d.%d.\n",
GTK_MAJOR_VERSION, GTK_MINOR_VERSION, GTK_MICRO_VERSION,
gtk_major_version, gtk_minor_version, gtk_micro_version);
#ifdef GDK_PIXBUF_VERSION
g_print (" Compiled with gdk-pixbuf %s; using gdk-pixbuf %s.\n",
GDK_PIXBUF_VERSION, gdk_pixbuf_version);
#endif
g_print (" Compiled with libmng %s; using libmng %s.\n",
MNG_VERSION_TEXT, mng_version_text());
g_print (" Compiled with zlib %s; using zlib %s.\n",
ZLIB_VERSION, zlib_version);
#ifdef JPEG_LIB_VERSION
{
int major = JPEG_LIB_VERSION / 10;
int minor = JPEG_LIB_VERSION % 10;
char minoralpha[2];
if (minor)
{
minoralpha[0] = (char)(minor - 1 + 'a');
minoralpha[1] = '\0';
}
else
minoralpha[0] = '\0';
g_print (" Compiled with libjpeg %d%s.\n", major, minoralpha);
}
#endif
g_print ("\nPress Esc or Q, or click mouse button, to quit.\n");
return 1;
}
mng_data_size = read_file (* (argv + 1), &mng_data);
if (mng_data == NULL)
return 1;
gtk_init (&argc, &argv);
gdk_rgb_init ();
gdk_rgb_set_verbose (TRUE);
gtk_widget_set_default_visual (gdk_rgb_get_visual ());
gtk_widget_set_default_colormap (gdk_rgb_get_cmap ());
window = gtk_widget_new (GTK_TYPE_WINDOW,
"GtkWindow::type", GTK_WINDOW_TOPLEVEL,
"GtkWindow::title", "MNG animation",
"GtkContainer::border_width", 5,
NULL);
gtk_signal_connect (GTK_OBJECT (window), "delete_event",
GTK_SIGNAL_FUNC (gtk_main_quit), NULL);
gtk_signal_connect (GTK_OBJECT (window), "destroy",
GTK_SIGNAL_FUNC (gtk_main_quit), NULL);
/* any keypress (e.g., Esc or Q) or mouse-button click will quit viewer */
gtk_signal_connect (GTK_OBJECT (window), "key_press_event",
GTK_SIGNAL_FUNC (gtk_main_quit), NULL);
gtk_widget_add_events(window, GDK_BUTTON_PRESS_MASK);
gtk_signal_connect (GTK_OBJECT (window), "button_press_event",
GTK_SIGNAL_FUNC (gtk_main_quit), NULL);
align = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
gtk_container_add (GTK_CONTAINER (window), align);
frame = gtk_frame_new (NULL);
gtk_container_add (GTK_CONTAINER (align), frame);
/* actually it */
mng_view = GTK_MNG_VIEW (gtk_mng_view_new ());
gtk_container_add (GTK_CONTAINER (frame), GTK_WIDGET (mng_view));
gtk_mng_view_load_mng_from_memory (mng_view, mng_data, mng_data_size);
g_free (mng_data);
/* rest in piece */
gtk_widget_show_all (window);
gtk_main ();
return 0;
}
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