Warning looks like that
```
C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.35.32215\include\tuple(144,47): warning C4244: 'initializing': conversion from '_Ty' to '_Ty', possible loss of data [D:\a\slint\cppbuild\examples\virtual_keyboard\cpp\virtual_keyboard.vcxproj]
with
[
_Ty=int
]
and
[
_Ty=float
]
C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.35.32215\include\tuple(239): message : see reference to function template instantiation 'std::_Tuple_val<_This>::_Tuple_val<_Ty>(_Other &&)' being compiled [D:\a\slint\cppbuild\examples\virtual_keyboard\cpp\virtual_keyboard.vcxproj]
with
[
_This=float,
_Ty=int,
_Other=int
]
C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.35.32215\include\tuple(239,81): message : see reference to function template instantiation 'std::_Tuple_val<_This>::_Tuple_val<_Ty>(_Other &&)' being compiled [D:\a\slint\cppbuild\examples\virtual_keyboard\cpp\virtual_keyboard.vcxproj]
with
[
_This=float,
_Ty=int,
_Other=int
]
C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.35.32215\include\tuple(802): message : see reference to function template instantiation 'std::tuple<float,float,float,float>::tuple<std::_Exact_args_t,int,float,float,int,0>(_Tag,_This2 &&,float &&,float &&,int &&)' being compiled [D:\a\slint\cppbuild\examples\virtual_keyboard\cpp\virtual_keyboard.vcxproj]
with
[
_Tag=std::_Exact_args_t,
_This2=int
]
C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.35.32215\include\tuple(802,12): message : see reference to function template instantiation 'std::tuple<float,float,float,float>::tuple<std::_Exact_args_t,int,float,float,int,0>(_Tag,_This2 &&,float &&,float &&,int &&)' being compiled [D:\a\slint\cppbuild\examples\virtual_keyboard\cpp\virtual_keyboard.vcxproj]
with
[
_Tag=std::_Exact_args_t,
_This2=int
]
```
and their related name.
Also move the component module in the item_Tree module
register_component -> register_item_tree
ComponentItemTree -> ItemTreeNodeArray
For #3323
Rationale from that issue:
Right now, we use the term `component` in the Slint language and in the compiler to be a a tree of elements that can be used as an element in a .slint file.
The term is also currently used in the runtime as a tree of runtime Items that are allocated together. (declared in ComponentVTable)
But there are no 1 to 1 mapping between a `component` in the slint language, and a runtime Component.
(for example, the items behind a `if` or `for` or `PopupMenu` are in a different runtime component. And `component` declared in Slint are often inlined)
So we should rename the internal runtime `Component` to `ItemTree`
The currently public `slint::ComponentHandle` wraps the "root" of the ItemTree, but that's ok because it is generated from a .slint `component`, so it doesn't change name
The parent is already deleted when we delete the component that is kept
alive by the `grabber` ItemRc in `handle_mouse_grab`
When the ItemRc goes out of scope, we delete the component, but the
parent was already gone.
This doesn't solve a broader issue that we use the parent in many place
and it is not kept alive (for example when using properties of the
parent)
So it doesn't appear in the LLR and the C++ codegen can be simplified.
In particular, this removes the need to throw/catch exception to handle return
across generated lambdas
In Rust, register_component in the run-time library is called unconditionally and
invokes init(). The window adapter is an optional
parameter.
In C++, we'd call register_component only if we had a window adapter, which meant
that we're missing init calls().
Amends cd9994306e
... if they are not set as actual binding before
As reported in #3068
The problem is that the pass will properly create the Rotation or
Opacity item, but will not create the two way binding if there is no
existing binding. This causes code like `img.rotation-angle = ...` to
change the rotation angle of the image, but not its parent Rotation
item.
Fix it by making sure there is always a binding.
Since the change only affect visual representation, I abused one of the
screenshot test to test this feature. And I also patched another bug
that some #[allow(unused_parens)] was not set in the 'init' callback and
would cause a warning in the test
using `use slint::private_unstable_api::re_exports as sp;` should
allow to safely qualify everything will keeping things shorter.
For the `todo` example:
- before 1_050_650 octets for 24_012 formatted lines
- after 934_049 octets for 23_032 formatted lines
This also makes the generated code more readable if needed.
cc #2909 , #223
New message:
```
/home/olivier/slint/build2/examples/gallery/gallery.h:6:73: error: static assertion failed: This file was generated with Slint compiler version 1.1.1, but the Slint library used is 1.1.0. The version numbers must match exactly.
6 | static_assert(1 == SLINT_VERSION_MAJOR && 1 == SLINT_VERSION_MINOR && 1 == SLINT_VERSION_PATCH, "This file was generated with Slint compiler version 1.1.1, but the Slint library used is " SLINT_VERSION_STRING ". The version numbers must match exactly.");
/home/olivier/slint/build2/examples/gallery/gallery.h:6:73: note: the comparison reduces to ‘(1 == 0)’
```
Previous message:
```
/home/olivier/slint/build2/examples/printerdemo/cpp/printerdemo.h:12218:161: error: conversion from ‘VersionCheckHelper<[...],[...],0>’ to non-scalar type ‘VersionCheckHelper<[...],[...],1>’ requested
12218 | [[maybe_unused]] constexpr slint::private_api::VersionCheckHelper<1, 1, 1> THE_SAME_VERSION_MUST_BE_USED_FOR_THE_COMPILER_AND_THE_RUNTIME = slint::private_api::VersionCheckHelper<SLINT_VERSION_MAJOR, SLINT_VERSION_MINOR, SLINT_VERSION_PATCH>();
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/olivier/slint/build2/examples/printerdemo/cpp/printerdemo.h:12218:161: error: could not convert ‘slint::private_api::VersionCheckHelper<1, 1, 0>()’ from ‘VersionCheckHelper<[...],[...],0>’ to ‘VersionCheckHelper<[...],[...],1>’
12218 | [[maybe_unused]] constexpr slint::private_api::VersionCheckHelper<1, 1, 1> THE_SAME_VERSION_MUST_BE_USED_FOR_THE_COMPILER_AND_THE_RUNTIME = slint::private_api::VersionCheckHelper<SLINT_VERSION_MAJOR, SLINT_VERSION_MINOR, SLINT_VERSION_PATCH>();
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| VersionCheckHelper<[...],[...],0>
```
The type of thep property is `Point`, which existed before. It was
mapped to `slint::private_unstable_api::re_exports::Point` (euclid) and
is now mapped to slint::LogicalPosition (also in C++).
This will be needed for embedding - to avoid creating two window
adapters - and it will be needed for the API to allow creating a
component from an existing window.
