Bug fixes + chart bg changed to chart and some basic chart funtions added

lv_objx/lv_chart.h

@@ -0,0 +1,97 @@
+/**
+ * @file lv_chart.h
+ *
+ */
+
+#ifndef LV_CHARTBG_H
+#define LV_CHARTBG_H
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "lv_conf.h"
+#if USE_LV_CHARTBG != 0
+
+#include "../lv_obj/lv_obj.h"
+#include "lv_rect.h"
+#include "lv_line.h"
+
+/*********************
+ *      DEFINES
+ *********************/
+#define LV_CHART_DL_NUM		8
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+typedef enum
+{
+	LV_CHART_LINE,
+	LV_CHART_COL,
+	LV_CHART_POINT,
+}lv_chart_type_t;
+
+typedef int32_t lv_chart_range_t;
+
+/*Style of chart background*/
+typedef struct
+{
+	lv_rects_t bg_rects;
+	lv_lines_t div_lines;
+	uint8_t div_line_opa;		/*Percentage of obj. opacity*/
+	color_t color[LV_CHART_DL_NUM];	/*Line/Point/Col color */
+	uint16_t line_width;			/*Line width or point diameter*/
+	cord_t col_space;			/*Space between columns*/
+	opa_t data_opa;				/*Line/Point/Col opacity in the percentage of obj. opacity*/
+}lv_charts_t;
+
+/*Built-in styles of chart background*/
+typedef enum
+{
+	LV_CHARTS_DEF,
+}lv_charts_builtin_t;
+
+/*Data of chart background*/
+typedef struct
+{
+	lv_rect_ext_t rect_ext;
+	lv_chart_range_t xmin;
+	lv_chart_range_t xmax;
+	lv_chart_range_t ymin;
+	lv_chart_range_t ymax;
+	uint8_t hdiv_num;
+	uint8_t vdiv_num;
+
+	ll_dsc_t dl_ll;				/*Linked list for the data line pointers (stores cord_t * )*/
+	uint16_t pnum;				/*Point number in a data line*/
+	uint8_t type	:2;			/*Line, column or point chart*/
+	uint8_t dl_num;				/*Data line number in dl_ll*/
+}lv_chart_ext_t;
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+lv_obj_t* lv_chart_create(lv_obj_t* par_dp, lv_obj_t * copy_dp);
+bool lv_chart_signal(lv_obj_t* obj_dp, lv_signal_t sign, void * param);
+lv_charts_t * lv_charts_get(lv_charts_builtin_t style, lv_charts_t * copy_p);
+
+cord_t * lv_chart_add_dataline(lv_obj_t* obj_dp);
+
+void lv_chart_refr(lv_obj_t * obj_dp);
+
+void lv_chart_set_type(lv_obj_t * obj_dp, lv_chart_type_t type);
+void lv_chart_set_hvdiv(lv_obj_t * obj_dp, uint8_t hdiv, uint8_t vdiv);
+void lv_chart_set_range(lv_obj_t * obj_dp, int32_t xmin, int32_t xmax, int32_t ymin, int32_t ymax);
+void lv_chart_set_pnum(lv_obj_t * obj_dp, uint16_t pnum);
+void lv_chart_set_next(lv_obj_t * obj_dp, cord_t * dl_p, cord_t y);
+
+lv_chart_type_t lv_chart_get_type(lv_obj_t * obj_dp);
+uint16_t lv_chart_get_pnum(lv_obj_t * obj_dp);
+/**********************
+ *      MACROS
+ **********************/
+
+#endif
+
+#endif