2009-01-17 Michael Natterer <mitch@gimp.org>
* all files with a GPL header and all COPYING files:
Change licence to GPLv3 (and to LGPLv3 for libgimp).
Cleaned up some copyright headers and regenerated the parsers in
the ImageMap plugin.
svn path=/trunk/; revision=27913
2008-10-22 Sven Neumann <sven@gimp.org>
Bug 555246 – gimp crashes when a file is opened while a preview
is
generating
* app/widgets/gimpthumbbox.c: set box->progress to NULL in
destroy() and check for progress being NULL in various places so
we don't crash on API calls after the widget is destroyed.
svn path=/trunk/; revision=27360
2008-06-10 Michael Natterer <mitch@gimp.org>
* app/widgets/gimpthumbbox.c (gimp_thumb_box_new): don't set a
width request on the info label. It broke horizontal label
positioning and didn't serve any purpose I can remember.
svn path=/trunk/; revision=25911
2007-12-27 Sven Neumann <sven@gimp.org>
* app/widgets/gimpthumbbox.c (gimp_thumb_box_new): enable line
wrapping on the info label.
svn path=/trunk/; revision=24439
2007-06-11 Sven Neumann <sven@gimp.org>
* app/core/gimpimage-preview.c: don't disable image previews
when
layer previews are disabled. We do not any longer create the
image
preview from the layer previews.
* app/core/gimpimagefile.c
* app/widgets/gimpthumbbox.c
* tools/pdbgen/pdb/image.pdb: thumbnail rendering is not any
longer disabled if layer previews are turned off.
* app/config/gimprc-blurbs.h (THUMBNAIL_SIZE_BLURB): removed
note
that has become invalid by the change above.
* app/core/gimpitem-preview.c: cosmetics.
* app/pdb/image_cmds.c: regenerated.
svn path=/trunk/; revision=22756
2007-05-16 Michael Natterer <mitch@gimp.org>
* app/widgets/gimpthumbbox.c
* libgimp/gimpprogressbar.c
* plug-ins/script-fu/script-fu-interface.c: use Gtk functions to
manually iterate the main loop because they release the Gdk lock
correctly around calling the GLib main loop functions.
svn path=/trunk/; revision=22516
2007-05-16 Sven Neumann <sven@gimp.org>
* app/widgets/gimpfiledialog.c (gimp_file_dialog_set_sensitive):
apply sensitivity state to the Cancel button as well.
(gimp_file_dialog_progress_start): make the Cancel button sensitive
if the progress is cancelable.
* app/widgets/gimpthumbbox.c (gimp_thumb_box_progress_start): if
embedded in a GimpFileDialog, make its Cancel button sensitive if
the progress is cancelable
svn path=/trunk/; revision=22506
2007-05-16 Sven Neumann <sven@gimp.org>
* app/widgets/gimpthumbbox.[ch]: combined the two progress bars
(when loading multiple thumbnails) into a single one using a
GimpSubProgress.
svn path=/trunk/; revision=22503
2007-01-13 Sven Neumann <sven@gimp.org>
* app/widgets/gimpfiledialog.c
* app/widgets/gimpthumbbox.[ch]: save some string copies by
changing gimp_thumb_box_set_uri() to gimp_thumb_box_take_uri().
svn path=/trunk/; revision=21701
2006-10-09 Michael Natterer <mitch@gimp.org>
Added message severities and make sure all messages are routed
through a central function, so redirecting to the error console or
stderr work again:
* app/core/core-enums.[ch]: added enum GimpMessageSeverity { INFO,
WARNING, ERROR }.
* app/core/gimp.[ch] (gimp_message)
(gimp_message_valist): added severity parameter. Changed
"GimpProgress *progress" parameter to "GObject *handler", where
"handler" can be either a GimpProgress, a GtkWidget or NULL.
* app/core/gimp-gui.[ch] (gimp_show_message): ditto. Honor
--console-messages again. Always dispatch to the GUI message
handler first if it exists.
* app/gui/gui-message.[ch]: pass severity parameters around.
(gui_message_error_dialog): if "handler" is a progress, dispatch
the message to it first. If it is a widget (and *not* a progress),
use a GtkMessageDialog on top of that widget's toplevel. Fall
back to the usual GimpErrorDialog otherwise.
* app/core/gimpprogress.[ch] (gimp_progress_message): added
severity parameter. Also added boolean return value to the virtual
function so it can decide to fail if it can't handle the message.
* app/display/gimpdisplay.c: implement GimpProgress::message() and
redirect the message to GimpDisplayShell.
* app/display/gimpdisplayshell-progress.c: implement
GimpProgress::message() and redirect the message to GimpStatusbar
if it is not an error and if the status bar is visible.
* app/display/gimpstatusbar.[ch]: implement GimpProgress::message(),
but fail on messages that contain a newline. Show the right icons
for the message severities (work in progress).
* app/display/gimpdisplayshell.[ch]: removed
gimp_display_shell_message() and its _valist() variant.
* app/widgets/gimperrorconsole.[ch]: show the right icons for the
message severities.
* app/widgets/gimpthumbbox.c (gimp_thumb_box_progress_message):
return TRUE to swallow all messages.
* app/widgets/gimpwidgets-utils.[ch]: removed
gimp_show_message_dialog(). Added gimp_get_message_stock_id().
* app/errors.c
* app/actions/edit-commands.c
* app/actions/error-console-commands.c
* app/actions/file-commands.c
* app/actions/select-commands.c
* app/actions/text-editor-commands.c
* app/actions/vectors-commands.c
* app/core/gimpimage-convert.c
* app/core/gimpimagefile.c
* app/dialogs/convert-dialog.c
* app/dialogs/file-open-dialog.c
* app/dialogs/file-open-location-dialog.c
* app/dialogs/file-save-dialog.c
* app/dialogs/palette-import-dialog.c
* app/dialogs/stroke-dialog.c
* app/display/gimpdisplayshell-dnd.c
* app/pdb/gimppdb.c
* app/plug-in/gimpplugin.c
* app/tools/gimpimagemaptool.c
* app/tools/gimptool.c
* app/tools/gimpvectortool.c
* app/widgets/gimpactionview.c
* app/widgets/gimpcontrollerlist.c
* app/widgets/gimppdbdialog.c
* app/widgets/gimpvectorstreeview.c
* app/xcf/xcf-load.c
* app/xcf/xcf-save.c
* app/xcf/xcf.c
* tools/pdbgen/pdb/brush.pdb
* tools/pdbgen/pdb/gradient.pdb
* tools/pdbgen/pdb/image.pdb
* tools/pdbgen/pdb/message.pdb
* tools/pdbgen/pdb/palette.pdb: added severity parameter to
gimp_message() calls. Convert all calls to
gimp_show_message_dialog() and gimp_display_shell_message() to
gimp_message(). Also converted some more g_message() calls.
* app/pdb/brush_cmds.c
* app/pdb/gradient_cmds.c
* app/pdb/image_cmds.c
* app/pdb/message_cmds.c
* app/pdb/palette_cmds.c: regenerated.
2006-08-31 Michael Natterer <mitch@gimp.org>
* app/widgets/gimpthumbbox.[ch]: remember the context passed to
gimp_thumb_box_new() and use it instead of the user context when
creating thumbnails.
2006-08-29 Michael Natterer <mitch@gimp.org>
Changed GimpViewable preview rendering to have a context to get
FG/BG/whatever from. Use the context to enable dynamic FG/BG
colors in gradients. Fixes bug #127676 and bug #352214. Addresses
bug #128367 (doesn't fix it because there's no loading/saving and
no GUI yet).
* app/core/core-enums.[ch]: added enum GimpGradientColor to enable
specifying gradient colors in terms of foreground and background.
* app/core/gimpgradient.[ch]: added color_type members to the
GimpGradientSegment struct and honor them in
gimp_gradient_get_color_at(). Added GimpContext parameters to all
functions which finally call get_color_at().
* app/core/gimp-gradients.c: use the new method to implement the
builtin gradients.
* app/core/gimpviewable.[ch]: added GimpContext parameters to all
get_preview() and get_pixbuf() functions.
* app/core/gimpbrush.c
* app/core/gimpbuffer.c
* app/core/gimpdrawable-preview.[ch]
* app/core/gimpgradient.c
* app/core/gimpimage-preview.[ch]
* app/core/gimpimagefile.c
* app/core/gimppalette.c
* app/core/gimppattern.c
* app/core/gimpundo.[ch]
* app/text/gimpfont.c
* app/vectors/gimpvectors-preview.[ch]: changed ::get_preview()
and ::get_pixbuf() implementations accordingly.
* app/core/gimpdrawable-blend.c
* app/core/gimppalette-import.[ch]
* app/dialogs/dialogs-constructors.c
* app/dialogs/palette-import-dialog.c
* app/dialogs/resize-dialog.c
* app/display/gimpdisplayshell-layer-select.c
* app/display/gimpdisplayshell.c
* app/display/gimpnavigationeditor.c
* app/paint/gimppaintoptions.c
* app/tools/gimpeditselectiontool.c
* app/tools/gimptexttool.c
* app/actions/gradient-editor-commands.c
* app/widgets/gimpaction.c
* app/widgets/gimpbrusheditor.[ch]
* app/widgets/gimpbufferview.c
* app/widgets/gimpcellrendererviewable.c
* app/widgets/gimpchanneltreeview.c
* app/widgets/gimpclipboard.c
* app/widgets/gimpcoloreditor.c
* app/widgets/gimpcomponenteditor.c
* app/widgets/gimpcontainerbox.c
* app/widgets/gimpcontainercombobox.c
* app/widgets/gimpcontainereditor.c
* app/widgets/gimpcontainerentry.c
* app/widgets/gimpcontainergridview.c
* app/widgets/gimpcontainertreeview.[ch]
* app/widgets/gimpdataeditor.[ch]
* app/widgets/gimpdevicestatus.c
* app/widgets/gimpdnd.[ch]
* app/widgets/gimpdrawabletreeview.c
* app/widgets/gimpfiledialog.c
* app/widgets/gimpgradienteditor.[ch]
* app/widgets/gimpgradientselect.c
* app/widgets/gimpitemtreeview.c
* app/widgets/gimplayertreeview.c
* app/widgets/gimppaletteeditor.[ch]
* app/widgets/gimppropwidgets.[ch]
* app/widgets/gimpselectioneditor.c
* app/widgets/gimpthumbbox.[ch]
* app/widgets/gimptoolbox-image-area.c
* app/widgets/gimptoolbox-indicator-area.c
* app/widgets/gimptooloptionseditor.c
* app/widgets/gimpundoeditor.c
* app/widgets/gimpvectorstreeview.c
* app/widgets/gimpview-popup.[ch]
* app/widgets/gimpview.[ch]
* app/widgets/gimpviewablebutton.c
* app/widgets/gimpviewabledialog.c
* app/widgets/gimpviewrenderer.[ch]
* app/widgets/gimpviewrenderer-frame.c
* app/widgets/gimpviewrendererbrush.c
* app/widgets/gimpviewrendererbuffer.c
* app/widgets/gimpviewrendererdrawable.c
* app/widgets/gimpviewrenderergradient.c
* app/widgets/gimpviewrendererimage.c
* tools/pdbgen/pdb/drawable.pdb
* tools/pdbgen/pdb/gradient.pdb
* tools/pdbgen/pdb/gradients.pdb
* tools/pdbgen/pdb/image.pdb: added tons of GimpContext members
and parameters, implement GimpDocked::set_context() in many
widgets. Pass these locally remembered contexts to GimpViewable
functions. Did some minor cleanups on the way. There are still
some minor FIXMEs around where the code uses a NULL context (which
is allowed by the APIs)
* app/pdb/drawable_cmds.c
* app/pdb/gradient_cmds.c
* app/pdb/gradients_cmds.c
* app/pdb/image_cmds.c: regenerated.
2006-06-04 Michael Natterer <mitch@gimp.org>
* app/widgets/gimpthumbbox.c (gimp_thumb_box_new): changed
mnemonic from "_Preview" to "Pr_eview" because the GTK+ HEAD
file chooser has a "_Places" mnemonic now.
* app/widgets/gimpcomponenteditor.c: minor cleanup.
2005-06-15 Sven Neumann <sven@gimp.org>
* app/core/gimpimagefile.c (gimp_imagefile_load_thumb):
* app/widgets/gimpthumbbox.c (gimp_thumb_box_auto_thumbnail):
don't display a preview and don't attempt to create one if the
image file does not exist any longer (bug #307672).
2005-02-12 Sven Neumann <sven@gimp.org>
* app/core/gimpprogress.[ch]: added GimpProgress::pulse.
* app/display/gimpdisplay.c
* app/display/gimpstatusbar.c
* app/widgets/gimpfiledialog.c
* app/widgets/gimpprogressbox.c
* app/widgets/gimpprogressdialog.c
* app/widgets/gimpthumbbox.c: implement it in the classes that
implement the GimpProgress interface.
* app/plug-in/plug-in-progress.[ch]: allow plug-ins to pulse their
progress.
* tools/pdbgen/pdb/progress.pdb: added a procedure for the new
functionality.
* app/pdb/internal_procs.c
* app/pdb/progress_cmds.c
* libgimp/gimpprogress_pdb.[ch]: regenerated.
* libgimp/gimp.def: updated.
2005-02-09 Michael Natterer <mitch@gimp.org>
* app/core/gimpimagefile.c
* app/widgets/gimpthumbbox.c: enable explicit (not automatic while
browsing the list of files) thumbnailing of remote files
2005-02-07 Sven Neumann <sven@gimp.org>
* app/dialogs/file-open-dialog.c
* app/dialogs/file-save-dialog.c
* app/widgets/gimpthumbbox.c: use file_utils_filename_from_uri()
in some more places.
* app/dialogs/file-open-location-dialog.c
* app/widgets/gimpselectiondata.c: deal with hostname in URIs.
2005-02-07 Sven Neumann <sven@gimp.org>
* app/core/gimpimagefile.c (gimp_imagefile_get_desc_string):
changed "Remote Image" to "Remote File". The state of the
thumbnail doesn't tell us if this is an image file at all.
* app/widgets/gimpthumbbox.c: don't auto-thumbnail remote files.
* libgimpthumb/gimpthumb-utils.[ch]
* libgimpthumb/gimpthumbnail.c: do the same workaround for UNC
paths as in file_utils_filename_from_uri().
2004-10-23 Sven Neumann <sven@gimp.org>
* libgimpthumb/gimpthumb-utils.[ch]
* libgimpthumb/gimpthumbnail.[ch]
* libgimpthumb/gimpthumb.def: added missing API, mainly for deleting
thumbnails.
* app/core/gimpimagefile.[ch]: when saving a thumbnail, delete a
failure thumbnail if one exists. Unless the thumbnail was created
explicitely, remove all other thumbnails for this image.
* app/actions/documents-commands.c: changed accordingly.
* app/file/file-open.c: only save a thumbnail if there isn't a
valid thumbnail already.
* app/widgets/gimpthumbbox.c: before attempting to create a new
thumbnail, check if there's an uptodate failure thumbnail.
2004-10-14 Sven Neumann <sven@gimp.org>
* app/core/gimpprogress.[ch]: added "message" function to the
GimpProgress interface. Call gimp_message() if it is unimplemented.
* app/plug-in/plug-in-progress.[ch]: added new function
plug_in_progress_message() that passes the message to the current
proc_frame's progress.
* app/widgets/gimpthumbbox.c: implement GimpProgress::message.
Just do nothing in the implementation. We don't want to see
messages from file plug-ins that we use to create the thumbnails.
* tools/pdbgen/pdb/message.pdb
* app/pdb/message_cmds.c: if there's a current plug-in, dispatch
the message by calling plug_in_progress_message().
* app/display/gimpdisplayshell-close.c: fixed wrong types in
function calls.
2004-10-13 Sven Neumann <sven@gimp.org>
* app/core/gimpimagefile.c (gimp_imagefile_create_thumbnail): ref
the imagefile while creating the thumbnail.
* app/core/gimpimagefile.[ch]
* app/widgets/gimpthumbbox.c (gimp_thumb_box_auto_thumbnail): moved
the tricky part about thumbnail creation into the new function
gimp_imagefile_create_thumbnail_weak().
2004-10-11 Michael Natterer <mitch@gimp.org>
* app/widgets/gimpthumbbox.c (gimp_thumb_box_create_thumbnails):
user-visible counting starts at 1, not 0.
2004-10-11 Sven Neumann <sven@gimp.org>
* libgimpthumb/gimpthumb-utils.[ch]
* libgimpthumb/gimpthumb.def: added an API to delete thumbnails.
* app/widgets/gimpthumbbox.c (gimp_thumb_box_create_thumbnail):
when recreating a thumbnail on user request, delete all existing
thumbnails for it.
* plug-ins/common/AlienMap2.c: removed unused variable.
2004-10-10 Sven Neumann <sven@gimp.org>
* app/widgets/gimpcontainerview.c (gimp_container_view_lookup):
handle NULL as viewable parameter as a workaround for bug #149906.
* app/widgets/gimpthumbbox.c (gimp_thumb_box_auto_thumbnail): made
the code more robust.
* app/xcf/xcf-private.h
* app/xcf/xcf.c: added a const qualifier.
2004-10-08 Sven Neumann <sven@gimp.org>
* app/widgets/gimpthumbbox.c: tweaked the text shown while
updating the preview so that the dialog doesn't need to resize.
2004-10-08 Sven Neumann <sven@gimp.org>
* app/config/gimpcoreconfig.[ch]
* app/config/gimprc-blurbs.h: added new gimprc option
"thumbnail-filesize-limit" that allows to control the maximum
filesize for automatic thumbnail creation.
* app/dialogs/preferences-dialog.c: added a GUI for it, needs
review.
* app/core/gimpimagefile.[ch]: minor cleanups. Moved call to
gimp_thumbnail_peek_image() from gimp_imagefile_save_thumb() to
gimp_imagefile_save_thumbnail() to avoid it being called twice.
* app/file/file-utils.[ch]: export utility function
file_utils_find_proc_by_extension() that allows to check for a
file plug-in by looking at the filename extension only.
* app/widgets/gimpthumbbox.[ch]: automatically create or update
thumbnails for image files with a known extension that are smaller
than "thumbnail-filesize-limit". Fixes bug #137176.
2004-10-07 Sven Neumann <sven@gimp.org>
* libgimpthumb/gimpthumbnail.c: added some (disabled) debug output.
* app/widgets/gimpviewrenderer-frame.[ch]: added a way to retrieve
the size of the frame borders.
* app/widgets/gimpthumbbox.c: don't set an arbitrary padding but
exactly the size of the frame borders. Otherwise we get large
thumbnails (scaled down) if we request normal sized ones.
2004-09-27 Sven Neumann <sven@gimp.org>
* app/widgets/gimpthumbbox.c (gimp_thumb_box_new): added some
padding for the shadow frame to avoid scaling the thumbnail.
2004-08-11 Michael Natterer <mitch@gimp.org>
* app/widgets/gimpthumbbox.c (gimp_thumb_box_create_thumbnails):
fixed annoying resizing when thumbnailing exactly one image.
2004-08-10 Michael Natterer <mitch@gimp.org>
* app/widgets/gimpfiledialog.[ch]
(gimp_file_dialog_set_sensitive): new function which works on all
widgets in the dialog except the cancel button.
Remember if the active progress is cancelable and added two
booleans "busy" and "canceled". Added GtkDialog::response()
implementation which, if the dialog is busy, cancels the active
progress and sets the dialog's "canceled" state.
Moved the progress bar right above the action area so it is next
to the cancel button and in the same place for both open and save
dialogs.
* app/gui/file-open-dialog.c
* app/gui/file-save-dialog.c: use the new API to make image loading
and saving cancelable again.
* app/widgets/gimpthumbbox.c: use the same stuff to make
thumbnailing cancelable. Increased the minimum height a bit so it
doesn't resize when the progress bars are shown.
2004-08-10 Michael Natterer <mitch@gimp.org>
Redid the whole internal progress stuff: don't pass around
progress_callback and progress_data; instead, provide a
pointer to a GimpProgressInterface which can be implemented
by a variety of backends.
Addresses (but not yet fixes) bugs #6010, #97266 and #135185.
* app/display/Makefile.am
* app/display/gimpprogress.[ch]: removed the old progress hack.
* app/core/Makefile.am
* app/core/core-types.h
* app/core/gimpprogress.[ch]: implement GimpProgressInterface.
* app/widgets/Makefile.am
* app/widgets/widgets-types.h
* app/widgets/gimpprogressdialog.[ch]: the standalone progress
dialog as widget implementing GimpProgressInterface.
* app/display/gimpdisplay.c
* app/display/gimpstatusbar.[ch]
* app/widgets/gimpfiledialog.[ch]
* app/widgets/gimpthumbbox.[ch]: added GimpProgressInterface
implementation to these classes.
* app/core/gimp-gui.[ch]
* app/gui/gui-vtable.c: replaced the old progress vtable entries
by two new to create and destroy a GimpProgressDialog in case
no other progress is available.
* app/pdb/procedural_db.[ch]
* app/plug-in/plug-in-run.[ch]
* tools/pdbgen/app.pl: pass a GimpProgress to all PDB wrappers and
all plug-ins.
* app/plug-in/plug-in.[ch]
* app/plug-in/plug-ins.c
* app/plug-in/plug-in-message.c
* app/plug-in/plug-in-progress.c: handle the case there the
plug-in was crated with a progress as well as the case where it
wasn't.
* app/app_procs.c
* app/batch.c
* app/xcf/xcf.c
* app/file/file-open.[ch]
* app/file/file-save.[ch]
* app/widgets/gimphelp.c
* app/widgets/gimpbrushselect.c
* app/widgets/gimpfontselect.c
* app/widgets/gimpgradientselect.c
* app/widgets/gimppaletteselect.c
* app/widgets/gimppatternselect.c: changed accordingly.
* app/core/gimpimagefile.[ch]
* app/display/gimpdisplayshell-dnd.c
* app/gui/file-open-dialog.c
* app/gui/file-open-location-dialog.c
* app/gui/file-save-dialog.c
* app/widgets/gimplayertreeview.c
* app/widgets/gimptoolbox-dnd.c: pass a GimpProgress to all file
related functions. Embed the progress in the file dialog where
possible.
* app/core/gimpdrawable-blend.[ch]
* app/core/gimpdrawable-transform.[ch]
* app/core/gimpimage-convert.[ch]
* app/core/gimpimage-flip.[ch]
* app/core/gimpimage-resize.[ch]
* app/core/gimpimage-rotate.[ch]
* app/core/gimpimage-scale.[ch]
* app/core/gimpitem-linked.[ch]
* app/core/gimpitem.[ch]
* app/core/gimpchannel.c
* app/core/gimpdrawable.c
* app/core/gimplayer.c
* app/core/gimpselection.c
* app/vectors/gimpvectors.c: replaced callback/data by GimpProgress.
* app/tools/gimpblendtool.c
* app/tools/gimptransformtool.c
* app/gui/convert-dialog.c
* app/actions/documents-commands.c
* app/actions/file-commands.c
* app/actions/image-commands.c
* app/actions/layers-commands.c
* app/actions/plug-in-commands.c
* app/actions/vectors-commands.c
* tools/pdbgen/pdb/convert.pdb
* tools/pdbgen/pdb/edit.pdb
* tools/pdbgen/pdb/image.pdb
* tools/pdbgen/pdb/layer.pdb: changed callers accordingly.
* app/pdb/*_cmds.c: regenerated.
2004-06-29 Michael Natterer <mitch@gimp.org>
* app/widgets/gimpwidgets-utils.[ch]: added new function
gimp_get_mod_string() which takes a GdkModifierType and returns
correctly formated strings for all shift,control,alt combinations.
* app/tools/gimpbucketfilloptions.c
* app/tools/gimpcolorpickeroptions.c
* app/tools/gimpconvolvetool.c
* app/tools/gimpcropoptions.c
* app/tools/gimpdodgeburntool.c
* app/tools/gimperasertool.c
* app/tools/gimpflipoptions.c
* app/tools/gimpmagnifyoptions.c
* app/tools/gimpmoveoptions.c
* app/tools/gimptransformoptions.c
* app/tools/gimpvectoroptions.c
* app/widgets/gimpchanneltreeview.c
* app/widgets/gimpcolormapeditor.c
* app/widgets/gimpdocumentview.c
* app/widgets/gimperrorconsole.c
* app/widgets/gimpgradienteditor.c
* app/widgets/gimpitemtreeview.c
* app/widgets/gimppaletteeditor.c
* app/widgets/gimpselectioneditor.c
* app/widgets/gimpthumbbox.c
* app/widgets/gimptooloptionseditor.c
* app/widgets/gimpvectorstreeview.c: use the new function instead
of gimp_get_mod_name_shift(),control(),alt(),separator(). This
kindof addresses the issue of configurable modifier keys but is
actually indended to ease translation of format strings ("%s" is
easier to get right than "%s%s%s").
Michael Natterer