feat: implement keyboard and mouse input, pattern placement, and HiDPI scaling

Add configurable key bindings (TOML), modifier-aware dispatch, mouse-driven
pattern placement with preview and rotation, cell grid storage/rendering,
and fractional/integer HiDPI scaling. Archive the input-and-placement change
and sync its specs to main specs.

Tests: Hashtable, Config, Grid, Pattern (4/4 pass).

CMakeLists.txt

@@ -25,15 +25,49 @@ add_custom_command(
     DEPENDS ${CMAKE_SOURCE_DIR}/xdg-shell.xml
 )
 
+# viewporter
+add_custom_command(
+    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/include/viewporter.h
+    COMMAND wayland-scanner client-header ${CMAKE_SOURCE_DIR}/viewporter.xml ${CMAKE_CURRENT_BINARY_DIR}/include/viewporter.h
+    DEPENDS ${CMAKE_SOURCE_DIR}/viewporter.xml
+)
+
+add_custom_command(
+    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/viewporter.c
+    COMMAND wayland-scanner private-code ${CMAKE_SOURCE_DIR}/viewporter.xml ${CMAKE_CURRENT_BINARY_DIR}/viewporter.c
+    DEPENDS ${CMAKE_SOURCE_DIR}/viewporter.xml
+)
+
+# fractional-scale-v1
+add_custom_command(
+    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/include/fractional-scale-v1.h
+    COMMAND wayland-scanner client-header ${CMAKE_SOURCE_DIR}/fractional-scale-v1.xml ${CMAKE_CURRENT_BINARY_DIR}/include/fractional-scale-v1.h
+    DEPENDS ${CMAKE_SOURCE_DIR}/fractional-scale-v1.xml
+)
+
+add_custom_command(
+    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/fractional-scale-v1.c
+    COMMAND wayland-scanner private-code ${CMAKE_SOURCE_DIR}/fractional-scale-v1.xml ${CMAKE_CURRENT_BINARY_DIR}/fractional-scale-v1.c
+    DEPENDS ${CMAKE_SOURCE_DIR}/fractional-scale-v1.xml
+)
+
 set(SOURCES
     tkeyboard.c
     tpointer.c
-	hashtable.c
+    hashtable.c
+    toml.c
+    config.c
+    grid.c
+    pattern.c
     ${CMAKE_CURRENT_BINARY_DIR}/xdg-shell.c
+    ${CMAKE_CURRENT_BINARY_DIR}/viewporter.c
+    ${CMAKE_CURRENT_BINARY_DIR}/fractional-scale-v1.c
 )
 
 set(GENHEADERS
     ${CMAKE_CURRENT_BINARY_DIR}/include/xdg-shell.h
+    ${CMAKE_CURRENT_BINARY_DIR}/include/viewporter.h
+    ${CMAKE_CURRENT_BINARY_DIR}/include/fractional-scale-v1.h
 )
 
 add_executable(wlgol wlgol.c ${SOURCES} ${GENHEADERS})
@@ -47,6 +81,7 @@ target_include_directories(wlgol
 target_link_libraries(wlgol
     wayland-client
     wayland-cursor
+    m
     ${XKBCOMMON_LIBRARIES}
 )
 
@@ -75,3 +110,59 @@ target_compile_options(test_hashtable PRIVATE
 
 enable_testing()
 add_test(NAME Hashtable COMMAND test_hashtable)
+
+add_executable(test_config tests/test_config.c
+    ${SOURCES}
+)
+target_link_libraries(test_config
+    wayland-client
+    wayland-cursor
+    ${XKBCOMMON_LIBRARIES}
+)
+target_include_directories(test_config
+    PUBLIC ${CMAKE_CURRENT_BINARY_DIR}/include
+    PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include
+    PUBLIC ${XKBCOMMON_INCLUDE_DIRS}
+)
+target_compile_options(test_config PRIVATE
+    ${XKBCOMMON_CFLAGS_OTHER}
+)
+add_test(NAME Config COMMAND test_config)
+
+add_executable(test_grid tests/test_grid.c
+    ${SOURCES}
+)
+target_link_libraries(test_grid
+    wayland-client
+    wayland-cursor
+    m
+    ${XKBCOMMON_LIBRARIES}
+)
+target_include_directories(test_grid
+    PUBLIC ${CMAKE_CURRENT_BINARY_DIR}/include
+    PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include
+    PUBLIC ${XKBCOMMON_INCLUDE_DIRS}
+)
+target_compile_options(test_grid PRIVATE
+    ${XKBCOMMON_CFLAGS_OTHER}
+)
+add_test(NAME Grid COMMAND test_grid)
+
+add_executable(test_pattern tests/test_pattern.c
+    ${SOURCES}
+)
+target_link_libraries(test_pattern
+    wayland-client
+    wayland-cursor
+    m
+    ${XKBCOMMON_LIBRARIES}
+)
+target_include_directories(test_pattern
+    PUBLIC ${CMAKE_CURRENT_BINARY_DIR}/include
+    PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include
+    PUBLIC ${XKBCOMMON_INCLUDE_DIRS}
+)
+target_compile_options(test_pattern PRIVATE
+    ${XKBCOMMON_CFLAGS_OTHER}
+)
+add_test(NAME Pattern COMMAND test_pattern)