[gtk+] Non-fast-forward update to branch wip/baedert/gtkimageview

[Timm Bäder <baedert src gnome org>]

The branch 'wip/baedert/gtkimageview' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  73a5706... Add GtkImageView
  3b1a0bd... gtk3-demo: Add GtkImageView demo
  16f1242... GtkImageView: Replace zoom-mode with fit-allocation
  ba93ce4... GtkImageView: Choose the anchor point in ::begin
  b5f00d0... Last "working" state
  41a538b... Simple rotation working
  ca57d3e... Update the adjustments properly
  028afcc... imageview: Draw less debugging stuff
  358e919... GtkImageView: Rename fix_point function to fix_anchor
  82f2bad... wupp
  bee3def... GtkImageView: scale fixing works in fix_anchor_rotate
  5649261... Foo.
  3962b35... Scale/Rotation fixing works individually, not together.
  84a1e34... I think both scale and angle are working...
  158d023... Both at the same time appear to be working...
  42e5cd7... \:D/
  e6c3c9e... imageview: Clean things up a bit
  f486e52... Set size_valid do FALSE after setting the properties...
  9e4443f... Fix some memory leaks
  ef66cdd... demo: Add scale spinbutton back
  f98395b... demo: Add rotate/scale gesture check buttons
  eba0420... demo: Unref GtkBuilder instance
  cb0bfb0... GtkImageView: Improvements!
  6b3536c... demo: Separate code and declarations
  c60b8fa... snap angle in _set_angle
  ec4e742... Return early in set_scale/_set_angle
  41428ba... demo: Use switches instead of checkbuttons
  c54a088... Add a forgotten queue_draw
  908f351... Rename gesture-enabled properties
  edb32e6... Docs
  0f14010... Add getter for scale-set
  6e5911b... demo: Add transitions-enabled switch
  518516c... Reset in_scale/angle_transition early
  61ebf7c... Fix typo
  a993c8e... Remove target parameter from animate_to_xxx functions
  3608055... Docs
  a164abf... fix angle transition
  0314e98... Care about already running transitions
  4df9df4... Revisit scale factor handling
  3356d7d... Remove some code duplication
  dedd7d4... add image abstraction
  da02b02... Implement image abstraction for pixbuf images
  c3ed47d... imageview: Remove obsolete code
  2fcb40a... Reimplement load_image_from_stream
  511ba15... Remove scale_factor member
  96dae0b... Use gtk_image_view_replace_image
  5331f5f... Remove image_surface leftovers
  be5e072... Remove GtkPixbufImage
  1085174... demo: Load hidpi pixbuf
  71d3d83... Handle scale-factor 0 again
  3fa2d2d... Use GtkPlayable to start/stop pixbuf animations
  79b2489... Ref input sources
  01f9e2c... abstractimage: Export more functions
  ce236cf... abstractimage: Fix ::changed signature
  8853e35... imageview: Comments
  1db037a... add imageview sizing tests
  613788a... imageview: Fix size request
  229ecc7... imageview+demo: Port to gtk4

Commits added to the branch:

  1625385... Add GtkImageView