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Cst816s: scale down SDL mouse coordinates according to MONITOR_ZOOM

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The lv_drivers provided monitor driver supports a `MONITOR_ZOOM`-factor
which scales the window by the set factor. This is 'useful when
simulating small screens'.

The zoom can be set as cmake configuration setting `-DMONITOR_ZOOM=1`.

Probably even more usefull for high-dpi screens where 240 pixels is
really tiny.
This commit is contained in:
Reinhold Gschweicher
2022-03-30 19:49:17 +02:00
parent 84195fa44b
commit bf3a255ca4
4 changed files with 16 additions and 0 deletions
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7
CMakeLists.txt
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@@ -55,6 +55,13 @@ file(GLOB_RECURSE SOURCES "lv_drivers/*.c" "${InfiniTime_DIR}/src/libs/lvgl/src
add_executable(infinisim main.cpp ${SOURCES} ${INCLUDES})
set(MONITOR_ZOOM 1 CACHE STRING "Scale simulator window by this factor")
if(MONITOR_ZOOM MATCHES "^[0-9]\.?[0-9]*")
target_compile_definitions(infinisim PRIVATE MONITOR_ZOOM=${MONITOR_ZOOM})
else()
message(FATAL_ERROR "variable MONITOR_ZOOM=${MONITOR_ZOOM} must be a positive number")
endif()
# include the generated lv_conf.h file before anything else
target_include_directories(infinisim PRIVATE "${CMAKE_CURRENT_BINARY_DIR}")