2003-04-24  Paolo Bacchilega  <paolo.bacch@tin.it>

        * src/gthumb-window.c (set_preview_content)
        (preview_image_button_cb, preview_data_button_cb)
        (preview_comment_button_cb): added ability to change the preview
        content.

        * libgthumb/gth-image-list.c (gth_image_list_item_set_pixbuf): use
        the gtk theme background color as check color.
        (paint_item): paint the focus on the thumbnail if the filename is
        not displayed.

        * libgthumb/preferences.c (pref_get_view_mode): new function.

        * libgthumb/gth-file-list.c (gth_file_list_init): use
        pref_get_view_mode to get the view mode.
        (gth_file_list_set_list): clear before setting the list

        * src/commands-impl.c (alter_image_normalize_contrast_command_impl):
        * src/commands-impl.c (alter_image_stretch_contrast_command_impl):
        * libgthumb/async-pixbuf-ops.c (_gdk_pixbuf_iterate)
        (_gdk_pixbuf_normalize_contrast):
        (_gdk_pixbuf_stretch_contrast): implement normalize and stretch
        contrast.

        * src/commands-impl.c (file_save_command_impl):
        * libgthumb/dlg-save-image.c (dlg_save_image):
        * components/image-viewer/ui.c (verb_save_image): load the image
        after saving it.

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