Gtk Pixmap and png

[Arno <dark-arno ifrance com>]

Hello,

I have a little problem with the creation of gtk pixmap. I have my icone 
in png with transparent background. I want to use it to create my icone 
to insert in my toolbar. So I do :

 GdkPixbuf *pixbuf;
 GdkPixmap *pixmap;
 GdkBitmap *mask;
 GtkWidget *icone;

 pixbuf = gdk_pixbuf_new_from_file("../Back-prelight.png", NULL);
 gdk_pixbuf_render_pixmap_and_mask (pixbuf, &pixmap, &mask, 0);
 icone = gtk_pixmap_new (pixmap, mask);
 gtk_toolbar_insert_item (GTK_TOOLBAR (toolbar),
              "Back",
              "bla bla",
              NULL,
              icone,
              NULL,
              NULL,
              -1);

But the background of the icone doesn't have to good color as you can 
see in this picture (The first one at left) 
http://www.arnoraes.freesurf.fr/Forum/icone.png.

So I convert my picture in xpm and with the same code, I obtain the 
second icone. The icone doesn't have the good background color.


Finally, I create this function :

GtkWidget*
pixmap_to_widget(GtkWidget *window, char *xpm[])
{
 GdkPixmap *pixmap;
 GdkBitmap *mask;
 GtkWidget *gtkpixmap;
 GtkStyle  *style;

 gtk_widget_show(window);
 style = gtk_widget_get_style (window);
 pixmap = gdk_pixmap_create_from_xpm_d (window->window,  &mask,
                    &style->bg[GTK_STATE_NORMAL], xpm);
 gtkpixmap = gtk_pixmap_new (pixmap, mask);
 gtk_widget_show (gtkpixmap);
 gdk_pixmap_unref(pixmap);
 gdk_pixmap_unref(mask);
 return (gtkpixmap);
}

And, I create my icone with :

 #include "../Back-prelight.xpm"

 gtk_toolbar_insert_item (GTK_TOOLBAR (toolbar),
              "Back",
              "bla bla",
              NULL,
              pixmap_to_widget(win, Back_prelight_xpm),
              NULL,
              NULL,
              -1);

Now it's good, the background of the icone is good. But like you can see 
in the screenshot (http://www.arnoraes.freesurf.fr/Forum/icone.png), the 
contour of the icones is not fuzzy.


So, how could I use png picture with transparent background.

Thank you
Arno



______________________________________________________________________________
ifrance.com, l'email gratuit le plus complet de l'Internet !
vos emails depuis un navigateur, en POP3, sur Minitel, sur le WAP...
http://www.ifrance.com/_reloc/email.emailif