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BadNote/windows/runner/CMakeLists.txt
Akiba So 45d89b7790
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fix(pen): re-baseline zoom on pointer-count change; observe pen on child HWND
Zoom jumping (device: min 0.5 / max 2.47 while zooming near 1): the per-frame
scale clamp limited single-frame spikes but not multi-frame runs. Root cause is
pointer-count transitions — on Windows touch the two fingers land/lift at
different times and digitizers drop/re-acquire touches, and stock InteractiveViewer
keeps _scaleStart/_referenceFocalPoint from the OLD finger set, so the next frame
jumps. PenInteractiveViewer now re-baselines (and skips the transitional frame)
whenever details.pointerCount changes. The per-frame clamp stays as a secondary
guard.

Buttons (device evidence: btn=1 for tip-down, side-button, AND inverted; kind
never becomes invertedStylus): Flutter does NOT surface the barrel/eraser/inverted
state at all — unreachable from Dart. The only path is the native badnote/pen
plugin, which was SILENT because WM_POINTER is delivered to the Flutter CHILD
view window, not the top-level FlutterWindow where ObservePenMessage was hooked.
Fix: subclass the child HWND (SetWindowSubclass + comctl32) and observe its
WM_POINTER messages, passing every message through unchanged via DefSubclassProc
(observation-only, input behavior preserved). This is what should finally feed
GetPointerPenInfo penFlags + tilt to the channel — to be confirmed on-device with
the diagnostic (btn / kind / tilt readout).

Dart: analyze clean, 66/66 tests, linux build green. Native compiles on Windows CI.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-22 21:14:50 +08:00

47 lines
2.1 KiB
CMake

cmake_minimum_required(VERSION 3.14)
project(runner LANGUAGES CXX)
# Define the application target. To change its name, change BINARY_NAME in the
# top-level CMakeLists.txt, not the value here, or `flutter run` will no longer
# work.
#
# Any new source files that you add to the application should be added here.
add_executable(${BINARY_NAME} WIN32
"flutter_window.cpp"
"main.cpp"
"ocr_channel.cpp"
"pen_channel.cpp"
"utils.cpp"
"win32_window.cpp"
"${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
"Runner.rc"
"runner.exe.manifest"
)
# Apply the standard set of build settings. This can be removed for applications
# that need different build settings.
apply_standard_settings(${BINARY_NAME})
# Add preprocessor definitions for the build version.
target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION=\"${FLUTTER_VERSION}\"")
target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_MAJOR=${FLUTTER_VERSION_MAJOR}")
target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_MINOR=${FLUTTER_VERSION_MINOR}")
target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_PATCH=${FLUTTER_VERSION_PATCH}")
target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_BUILD=${FLUTTER_VERSION_BUILD}")
# Disable Windows macros that collide with C++ standard library functions.
target_compile_definitions(${BINARY_NAME} PRIVATE "NOMINMAX")
# Add dependency libraries and include directories. Add any application-specific
# dependencies here.
target_link_libraries(${BINARY_NAME} PRIVATE flutter flutter_wrapper_app)
target_link_libraries(${BINARY_NAME} PRIVATE "dwmapi.lib" "windowsapp.lib")
# comctl32 provides SetWindowSubclass/DefSubclassProc for the pen WM_POINTER
# observer installed on the Flutter child window (flutter_window.cpp).
target_link_libraries(${BINARY_NAME} PRIVATE "comctl32.lib")
target_compile_options(${BINARY_NAME} PRIVATE /await)
target_include_directories(${BINARY_NAME} PRIVATE "${CMAKE_SOURCE_DIR}")
# Run the Flutter tool portions of the build. This must not be removed.
add_dependencies(${BINARY_NAME} flutter_assemble)