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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| /** | ||
| * @file lv_windows_interop.c | ||
| * | ||
| */ | ||
|
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| /********************* | ||
| * INCLUDES | ||
| *********************/ | ||
|
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| #include "lv_windows_interop.h" | ||
| #ifdef LV_USE_WINDOWS | ||
|
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| /********************* | ||
| * DEFINES | ||
| *********************/ | ||
|
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| /********************** | ||
| * TYPEDEFS | ||
| **********************/ | ||
|
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| /********************** | ||
| * STATIC PROTOTYPES | ||
| **********************/ | ||
|
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| /********************** | ||
| * STATIC VARIABLES | ||
| **********************/ | ||
|
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| /********************** | ||
| * MACROS | ||
| **********************/ | ||
|
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| /********************** | ||
| * GLOBAL FUNCTIONS | ||
| **********************/ | ||
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| EXTERN_C HWND lv_windows_get_display_window_handle( | ||
| lv_display_t* display) | ||
| { | ||
| return (HWND)lv_display_get_driver_data(display); | ||
| } | ||
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| EXTERN_C HWND lv_windows_get_indev_window_handle( | ||
| lv_indev_t* indev) | ||
| { | ||
| return lv_windows_get_display_window_handle(lv_indev_get_display(indev)); | ||
| } | ||
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| int32_t lv_windows_zoom_to_logical(int32_t physical, int32_t zoom_level) | ||
| { | ||
| return MulDiv(physical, LV_WINDOWS_ZOOM_BASE_LEVEL, zoom_level); | ||
| } | ||
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| int32_t lv_windows_zoom_to_physical(int32_t logical, int32_t zoom_level) | ||
| { | ||
| return MulDiv(logical, zoom_level, LV_WINDOWS_ZOOM_BASE_LEVEL); | ||
| } | ||
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| int32_t lv_windows_dpi_to_logical(int32_t physical, int32_t dpi) | ||
| { | ||
| return MulDiv(physical, USER_DEFAULT_SCREEN_DPI, dpi); | ||
| } | ||
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| int32_t lv_windows_dpi_to_physical(int32_t logical, int32_t dpi) | ||
| { | ||
| return MulDiv(logical, dpi, USER_DEFAULT_SCREEN_DPI); | ||
| } | ||
|
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| /********************** | ||
| * STATIC FUNCTIONS | ||
| **********************/ | ||
|
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| #endif // LV_USE_WINDOWS |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| /** | ||
| * @file lv_windows_interop.h | ||
| * | ||
| */ | ||
|
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| #ifndef LV_WINDOWS_INTEROP_H | ||
| #define LV_WINDOWS_INTEROP_H | ||
|
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| #ifdef __cplusplus | ||
| extern "C" { | ||
| #endif | ||
|
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| /********************* | ||
| * INCLUDES | ||
| *********************/ | ||
|
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| #include "lvgl.h" | ||
| #define LV_USE_WINDOWS | ||
|
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| //#include "../../display/lv_display.h" | ||
| //#include "../../indev/lv_indev.h" | ||
|
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| #ifdef LV_USE_WINDOWS | ||
|
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| #include <windows.h> | ||
|
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| /********************* | ||
| * DEFINES | ||
| *********************/ | ||
|
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| #define LV_WINDOWS_ZOOM_BASE_LEVEL 100 | ||
|
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| #ifndef USER_DEFAULT_SCREEN_DPI | ||
| #define USER_DEFAULT_SCREEN_DPI 96 | ||
| #endif | ||
|
|
||
| /********************** | ||
| * TYPEDEFS | ||
| **********************/ | ||
|
|
||
| /********************** | ||
| * GLOBAL PROTOTYPES | ||
| **********************/ | ||
|
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| /** | ||
| * @brief Get the window handle from specific LVGL display object. | ||
| * @param display The specific LVGL display object. | ||
| * @return The window handle from specific LVGL display object. | ||
| */ | ||
| HWND lv_windows_get_display_window_handle( | ||
| lv_display_t* display); | ||
|
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| /** | ||
| * @brief Get the window handle from specific LVGL input device object. | ||
| * @param indev The specific LVGL input device object. | ||
| * @return The window handle from specific LVGL input device object. | ||
| */ | ||
| HWND lv_windows_get_indev_window_handle( | ||
| lv_indev_t* indev); | ||
|
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||
| /** | ||
| * @brief Get logical pixel value from physical pixel value taken account | ||
| * with zoom level. | ||
| * @param physical The physical pixel value taken account with zoom level. | ||
| * @param zoom_level The zoom level value. Base value is 100 a.k.a 100%. | ||
| * @return The logical pixel value. | ||
| * @remark It uses the same calculation style as Windows OS implementation. | ||
| * It will be useful for integrate LVGL Windows backend to other | ||
| * Windows applications. | ||
| */ | ||
| int32_t lv_windows_zoom_to_logical(int32_t physical, int32_t zoom_level); | ||
|
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| /** | ||
| * @brief Get physical pixel value taken account with zoom level from | ||
| * logical pixel value. | ||
| * @param logical The logical pixel value. | ||
| * @param zoom_level The zoom level value. Base value is 100 a.k.a 100%. | ||
| * @return The physical pixel value taken account with zoom level. | ||
| * @remark It uses the same calculation style as Windows OS implementation. | ||
| * It will be useful for integrate LVGL Windows backend to other | ||
| * Windows applications. | ||
| */ | ||
| int32_t lv_windows_zoom_to_physical(int32_t logical, int32_t zoom_level); | ||
|
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| /** | ||
| * @brief Get logical pixel value from physical pixel value taken account | ||
| * with DPI scaling. | ||
| * @param physical The physical pixel value taken account with DPI scaling. | ||
| * @param dpi The DPI scaling value. Base value is USER_DEFAULT_SCREEN_DPI. | ||
| * @return The logical pixel value. | ||
| * @remark It uses the same calculation style as Windows OS implementation. | ||
| * It will be useful for integrate LVGL Windows backend to other | ||
| * Windows applications. | ||
| */ | ||
| int32_t lv_windows_dpi_to_logical(int32_t physical, int32_t dpi); | ||
|
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||
| /** | ||
| * @brief Get physical pixel value taken account with DPI scaling from | ||
| * logical pixel value. | ||
| * @param logical The logical pixel value. | ||
| * @param dpi The DPI scaling value. Base value is USER_DEFAULT_SCREEN_DPI. | ||
| * @return The physical pixel value taken account with DPI scaling. | ||
| * @remark It uses the same calculation style as Windows OS implementation. | ||
| * It will be useful for integrate LVGL Windows backend to other | ||
| * Windows applications. | ||
| */ | ||
| int32_t lv_windows_dpi_to_physical(int32_t logical, int32_t dpi); | ||
|
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| /********************** | ||
| * MACROS | ||
| **********************/ | ||
|
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| #endif // LV_USE_WINDOWS | ||
|
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| #ifdef __cplusplus | ||
| } /*extern "C"*/ | ||
| #endif | ||
|
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| #endif /*LV_WINDOWS_INTEROP_H*/ |
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