initial commit

libraries/lvgl/src/widgets/lv_line.h

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+/**
+ * @file lv_line.h
+ *
+ */
+
+#ifndef LV_LINE_H
+#define LV_LINE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "../lv_conf_internal.h"
+
+#if LV_USE_LINE != 0
+
+#include "../core/lv_obj.h"
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/*Data of line*/
+typedef struct {
+    lv_obj_t obj;
+    const lv_point_t * point_array;     /**< Pointer to an array with the points of the line*/
+    uint16_t point_num;                 /**< Number of points in 'point_array'*/
+    uint8_t y_inv : 1;                  /**< 1: y == 0 will be on the bottom*/
+} lv_line_t;
+
+extern const lv_obj_class_t lv_line_class;
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+/**
+ * Create a line object
+ * @param parent pointer to an object, it will be the parent of the new line
+ * @return pointer to the created line
+ */
+lv_obj_t * lv_line_create(lv_obj_t * parent);
+
+/*=====================
+ * Setter functions
+ *====================*/
+
+/**
+ * Set an array of points. The line object will connect these points.
+ * @param obj           pointer to a line object
+ * @param points        an array of points. Only the address is saved, so the array needs to be alive while the line exists
+ * @param point_num     number of points in 'point_a'
+ */
+void lv_line_set_points(lv_obj_t * obj, const lv_point_t points[], uint16_t point_num);
+
+/**
+ * Enable (or disable) the y coordinate inversion.
+ * If enabled then y will be subtracted from the height of the object,
+ * therefore the y = 0 coordinate will be on the bottom.
+ * @param obj       pointer to a line object
+ * @param en        true: enable the y inversion, false:disable the y inversion
+ */
+void lv_line_set_y_invert(lv_obj_t * obj, bool en);
+
+/*=====================
+ * Getter functions
+ *====================*/
+
+/**
+ * Get the y inversion attribute
+ * @param obj       pointer to a line object
+ * @return          true: y inversion is enabled, false: disabled
+ */
+bool lv_line_get_y_invert(const lv_obj_t * obj);
+
+/**********************
+ *      MACROS
+ **********************/
+
+#endif /*LV_USE_LINE*/
+
+#ifdef __cplusplus
+} /*extern "C"*/
+#endif
+
+#endif /*LV_LINE_H*/