1 files changed, 29 insertions, 13 deletions
diff --git a/src/displayapp/fonts/CMakeLists.txt b/src/displayapp/fonts/CMakeLists.txt
index ea61c3a2..d00c802b 100644
--- a/src/displayapp/fonts/CMakeLists.txt
+++ b/src/displayapp/fonts/CMakeLists.txt
@@ -1,19 +1,35 @@
-cmake_minimum_required(VERSION 3.10)
-
 set(FONTS jetbrains_mono_42 jetbrains_mono_76 jetbrains_mono_bold_20
    jetbrains_mono_extrabold_compressed lv_font_navi_80 lv_font_sys_48
    open_sans_light)
-find_program(LV_FONT_CONV "lv_font_conv" NO_CACHE REQUIRED)
+find_program(LV_FONT_CONV "lv_font_conv" NO_CACHE REQUIRED
+   HINTS "${CMAKE_SOURCE_DIR}/node_modules/.bin")
+message(STATUS "Using ${LV_FONT_CONV} to generate font files")
 configure_file(${CMAKE_CURRENT_LIST_DIR}/jetbrains_mono_bold_20.c_zero.patch
-   displayapp/fonts/jetbrains_mono_bold_20.c_zero.patch COPYONLY)
-foreach(FONT ${FONTS})
-   set_source_files_properties(displayapp/fonts/${FONT}.c
-      PROPERTIES GENERATED TRUE)
+   ${CMAKE_CURRENT_BINARY_DIR}/jetbrains_mono_bold_20.c_zero.patch COPYONLY)
+if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.12)
+   # FindPython3 module introduces with CMake 3.12
+   # https://cmake.org/cmake/help/latest/module/FindPython3.html
+   find_package(Python3 REQUIRED)
+else()
+   set(Python3_EXECUTABLE "python")
+endif()
 
-   add_custom_command(OUTPUT displayapp/fonts/${FONT}.c
-      COMMAND python ${CMAKE_CURRENT_LIST_DIR}/generate.py
-      -f ${FONT} ${CMAKE_CURRENT_LIST_DIR}/fonts.json
-      DEPENDS ${CMAKE_CURRENT_LIST_DIR}/fonts.json
-      WORKING_DIRECTORY displayapp/fonts
-      )
+# create static library building fonts
+add_library(infinitime_fonts STATIC)
+# add include directory to lvgl headers needed to compile the font files on its own
+target_include_directories(infinitime_fonts PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../libs")
+foreach(FONT ${FONTS})
+   add_custom_command(
+      OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${FONT}.c
+      COMMAND "${Python3_EXECUTABLE}" ${CMAKE_CURRENT_SOURCE_DIR}/generate.py
+      --lv-font-conv "${LV_FONT_CONV}"
+      --font ${FONT} ${CMAKE_CURRENT_SOURCE_DIR}/fonts.json
+      DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/fonts.json
+      WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+   )
+   add_custom_target(infinitime_fonts_${FONT}
+      DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${FONT}.c
+   )
+   target_sources(infinitime_fonts PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/${FONT}.c")
+   add_dependencies(infinitime_fonts infinitime_fonts_${FONT})
 endforeach()