[gtk] (52 commits) Non-fast-forward update to branch wip/baedert/transforms6

[Timm Bäder <baedert src gnome org>]

The branch 'wip/baedert/transforms6' 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:

  6ad72b7... widget: Add transform matrix
  92f9880... widget: Push transform node when neccessary
  8c32799... widget: Add gtk_widget_set_transform
  a70144f... widget: Use translate_coordinates in pick()
  9d880bf... widget: Care about transformation in translate_coordinatesf
  544d1a8... widget: Don't use compute_bounds in _real_contains
  4b54a5c... widget: Make translate_coordinatesf public
  b7a9c85... widget: Look at transform in compute_bounds
  2cc24f0... widget: Consider widget transformations in translate_coordi
  f8c0681... Add picking/translation/compute_bounds unit tests
  da38039... Add test for widget transforms
  cea9756... widget Add gtk_widget_get_transform
  5173185... widget: Fix translate_coordinates for CSS values
  e7a619a... tests: Add some transform test with CSS values
  0bd7d53... Add form entry test
  4e7378a... widget: Handle position in transformation matrix
  ab661e9... testsuite: Fix translate test for size_allocate changes
  e7e6e7c... compute_bounds: Add preconditions
  d4a1287... testformentry: Pass transform in size_allocate
  525834d... Add size_allocate_transformed to the docs
  9c8f2e9... testwidgettransforms: Add toggle for picking
  98b9119... widget: Only push a transform if we need to
  4168ce0... testwidgettransforms: Set transformation in size_allocate
  6ff5bb4... gl renderer: Fix offscreen-drawn transform nodes
  6064e81... gl renderer: Flip the framebuffer when dumping it
  07a250a... gl renderer: Remove an incorrect comment
  96060d7... Add shrinking test case
  2bbdf0e... widget: Fix queue_allocate on transformed widgets
  aadd744... Add flipping test
  2a99dc8... css: Add transform style property
  97c0422... csstransformvalue: Export is_none
  6ea4ceb... widget: Apply CSS transform in size_allocate_transformed
  f0e09b1... Fix shadowing warnings
  9bf9a59... Add & use GTK_CSS_AFFECTS_TRANSFORM
  041849c... add GtkTransformer
  4c2dd64... testsuite: Disable more pick() tests

Commits added to the branch:

  f4b26af... selection model: Add sanity checks (*)
  c0c6c87... stack: Avoid some ugly unrefs (*)
  2dd85b8... stack: Don't leak a reference (*)
  1750922... stack: Fix a corner-case (*)
  8c0b706... stack: Don't emit bad ::selection-changed signals (*)
  82fdd48... Add a missing icon (*)
  8de8b8e... inspector: Fix selecting objects with a next tab (*)
  fbe0db4... inspector: Add an api to activate an object (*)
  927e983... inspector: Make object property inspection work again (*)
  6ef775d... stack: Add a pages property (*)
  2866a13... inspector: Support list model properties (*)
  ae9a29f... Exempt "pages" properties from defaultvalue test (*)
  fb44491... assistant: Add a pages property (*)
  020857e... widget: Add transform matrix
  4d3a07c... widget: Push transform node when neccessary
  07e48d3... widget: Add gtk_widget_set_transform
  0a938cc... widget: Use translate_coordinates in pick()
  2a7fc5f... widget: Care about transformation in translate_coordinatesf
  bd410a2... widget: Don't use compute_bounds in _real_contains
  530d549... widget: Make translate_coordinatesf public
  379efea... widget: Look at transform in compute_bounds
  edd8183... widget: Consider widget transformations in translate_coordi
  43ac1e7... Add picking/translation/compute_bounds unit tests
  3e646ec... Add test for widget transforms
  7c8b1fd... widget Add gtk_widget_get_transform
  cce4aca... widget: Fix translate_coordinates for CSS values
  a80a17d... tests: Add some transform test with CSS values
  13d9848... Add form entry test
  997e438... widget: Handle position in transformation matrix
  1f1be20... testsuite: Fix translate test for size_allocate changes
  88278e8... compute_bounds: Add preconditions
  1345839... testformentry: Pass transform in size_allocate
  cf0d69d... Add size_allocate_transformed to the docs
  63ef6a0... testwidgettransforms: Add toggle for picking
  57cd339... widget: Only push a transform if we need to
  bcd6f0b... testwidgettransforms: Set transformation in size_allocate
  cdbb8d1... gl renderer: Fix offscreen-drawn transform nodes
  fcfab33... gl renderer: Flip the framebuffer when dumping it
  6455833... gl renderer: Remove an incorrect comment
  87bca83... Add shrinking test case
  6e2f024... widget: Fix queue_allocate on transformed widgets
  fc2ce9a... Add flipping test
  06a8dd7... css: Add transform style property
  6f06d5b... csstransformvalue: Export is_none
  e2094ee... widget: Apply CSS transform in size_allocate_transformed
  17f6169... Fix shadowing warnings
  ea94dab... Add & use GTK_CSS_AFFECTS_TRANSFORM
  8bafd03... testsuite: Disable more pick() tests
  c73e070... flowbox: Implement get_child_at_pos properly
  b2351f8... widget: Remove _gtk_widget_get_allocation
  427457f... widget: Fix get_allocation
  59aede1... widget: Remove allocation member

(*) This commit already existed in another branch; no separate mail sent