diff options
Diffstat (limited to 'src/libs/lvgl/src/lv_objx/lv_roller.c')
| -rw-r--r-- | src/libs/lvgl/src/lv_objx/lv_roller.c | 733 |
1 files changed, 0 insertions, 733 deletions
diff --git a/src/libs/lvgl/src/lv_objx/lv_roller.c b/src/libs/lvgl/src/lv_objx/lv_roller.c deleted file mode 100644 index 4d21bbad..00000000 --- a/src/libs/lvgl/src/lv_objx/lv_roller.c +++ /dev/null @@ -1,733 +0,0 @@ -/** - * @file lv_roller.c - * - */ - -/********************* - * INCLUDES - *********************/ -#include "lv_roller.h" -#if LV_USE_ROLLER != 0 - -#include "../lv_core/lv_debug.h" -#include "../lv_draw/lv_draw.h" -#include "../lv_core/lv_group.h" -#include "../lv_themes/lv_theme.h" - -/********************* - * DEFINES - *********************/ -#define LV_OBJX_NAME "lv_roller" - -#if LV_USE_ANIMATION == 0 -#undef LV_ROLLER_DEF_ANIM_TIME -#define LV_ROLLER_DEF_ANIM_TIME 0 /*No animation*/ -#endif - -/********************** - * TYPEDEFS - **********************/ - -/********************** - * STATIC PROTOTYPES - **********************/ -static bool lv_roller_design(lv_obj_t * roller, const lv_area_t * mask, lv_design_mode_t mode); -static lv_res_t lv_roller_scrl_signal(lv_obj_t * roller_scrl, lv_signal_t sign, void * param); -static lv_res_t lv_roller_signal(lv_obj_t * roller, lv_signal_t sign, void * param); -static void refr_position(lv_obj_t * roller, lv_anim_enable_t animen); -static void refr_height(lv_obj_t * roller); -static void inf_normalize(void * roller_scrl); -#if LV_USE_ANIMATION -static void scroll_anim_ready_cb(lv_anim_t * a); -#endif -static void draw_bg(lv_obj_t * roller, const lv_area_t * mask); - -/********************** - * STATIC VARIABLES - **********************/ -static lv_signal_cb_t ancestor_signal; -static lv_signal_cb_t ancestor_scrl_signal; - -/********************** - * MACROS - **********************/ - -/********************** - * GLOBAL FUNCTIONS - **********************/ - -/** - * Create a roller object - * @param par pointer to an object, it will be the parent of the new roller - * @param copy pointer to a roller object, if not NULL then the new object will be copied from it - * @return pointer to the created roller - */ -lv_obj_t * lv_roller_create(lv_obj_t * par, const lv_obj_t * copy) -{ - LV_LOG_TRACE("roller create started"); - - /*Create the ancestor of roller*/ - lv_obj_t * new_roller = lv_ddlist_create(par, copy); - LV_ASSERT_MEM(new_roller); - if(new_roller == NULL) return NULL; - - if(ancestor_scrl_signal == NULL) ancestor_scrl_signal = lv_obj_get_signal_cb(lv_page_get_scrl(new_roller)); - if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_cb(new_roller); - - /*Allocate the roller type specific extended data*/ - lv_roller_ext_t * ext = lv_obj_allocate_ext_attr(new_roller, sizeof(lv_roller_ext_t)); - LV_ASSERT_MEM(ext); - if(ext == NULL) return NULL; - ext->ddlist.draw_arrow = 0; /*Do not draw arrow by default*/ - ext->mode = LV_ROLLER_MODE_NORMAL; - - /*The signal and design functions are not copied so set them here*/ - lv_obj_set_signal_cb(new_roller, lv_roller_signal); - lv_obj_set_design_cb(new_roller, lv_roller_design); - - /*Init the new roller roller*/ - if(copy == NULL) { - lv_obj_t * scrl = lv_page_get_scrl(new_roller); - lv_obj_set_drag(scrl, true); /*In ddlist it might be disabled*/ - lv_page_set_scrl_fit2(new_roller, LV_FIT_TIGHT, LV_FIT_NONE); /*Height is specified directly*/ - lv_ddlist_open(new_roller, false); - lv_ddlist_set_anim_time(new_roller, LV_ROLLER_DEF_ANIM_TIME); - lv_ddlist_set_stay_open(new_roller, true); - lv_roller_set_visible_row_count(new_roller, 3); - lv_label_set_align(ext->ddlist.label, LV_LABEL_ALIGN_CENTER); - - lv_obj_set_signal_cb(scrl, lv_roller_scrl_signal); - - /*Set the default styles*/ - lv_theme_t * th = lv_theme_get_current(); - if(th) { - lv_roller_set_style(new_roller, LV_ROLLER_STYLE_BG, th->style.roller.bg); - lv_roller_set_style(new_roller, LV_ROLLER_STYLE_SEL, th->style.roller.sel); - } else { - /*Refresh the roller's style*/ - lv_obj_refresh_style(new_roller); /*To set scrollable size automatically*/ - } - } - /*Copy an existing roller*/ - else { - lv_roller_ext_t * copy_ext = lv_obj_get_ext_attr(copy); - ext->mode = copy_ext->mode; - - lv_obj_t * scrl = lv_page_get_scrl(new_roller); - lv_ddlist_open(new_roller, false); - lv_obj_set_signal_cb(scrl, lv_roller_scrl_signal); - - /*Refresh the roller's style*/ - lv_obj_refresh_style(new_roller); /*Refresh the style with new signal function*/ - } - - LV_LOG_INFO("roller created"); - - return new_roller; -} - -/*===================== - * Setter functions - *====================*/ - -/** - * Set the options on a roller - * @param roller pointer to roller object - * @param options a string with '\n' separated options. E.g. "One\nTwo\nThree" - * @param mode `LV_ROLLER_MODE_NORMAL` or `LV_ROLLER_MODE_INFINITE` - */ -void lv_roller_set_options(lv_obj_t * roller, const char * options, lv_roller_mode_t mode) -{ - LV_ASSERT_OBJ(roller, LV_OBJX_NAME); - LV_ASSERT_STR(options); - - lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller); - - if(mode == LV_ROLLER_MODE_NORMAL) { - ext->mode = LV_ROLLER_MODE_NORMAL; - lv_ddlist_set_options(roller, options); - - /* Make sure the roller's height and the scrollable's height is refreshed. - * They are refreshed in `LV_SIGNAL_COORD_CHG` but if the new options has the same width - * that signal won't be called. (It's called because of LV_FIT_TIGHT hor fit)*/ - refr_height(roller); - refr_position(roller, LV_ANIM_OFF); - } else { - ext->mode = LV_ROLLER_MODE_INIFINITE; - - size_t opt_len = strlen(options) + 1; /*+1 to add '\n' after option lists*/ - char * opt_extra = lv_mem_alloc(opt_len * LV_ROLLER_INF_PAGES); - uint8_t i; - for(i = 0; i < LV_ROLLER_INF_PAGES; i++) { - strcpy(&opt_extra[opt_len * i], options); - opt_extra[opt_len * (i + 1) - 1] = '\n'; - } - opt_extra[opt_len * LV_ROLLER_INF_PAGES - 1] = '\0'; - lv_ddlist_set_options(roller, opt_extra); - lv_mem_free(opt_extra); - - /* Make sure the roller's height and the scrollable's height is refreshed. - * They are refreshed in `LV_SIGNAL_COORD_CHG` but if the new options has the same width - * that signal won't be called. (It called because LV_FIT_TIGHT hor fit)*/ - refr_height(roller); - - uint16_t real_id_cnt = ext->ddlist.option_cnt / LV_ROLLER_INF_PAGES; - lv_roller_set_selected(roller, ((LV_ROLLER_INF_PAGES / 2) + 1) * real_id_cnt, false); /*Select the middle page*/ - } -} - -/** - * Set the align of the roller's options (left or center) - * @param roller - pointer to a roller object - * @param align - one of lv_label_align_t values (left, right, center) - */ -void lv_roller_set_align(lv_obj_t * roller, lv_label_align_t align) -{ - LV_ASSERT_OBJ(roller, LV_OBJX_NAME); - - lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller); - - lv_obj_t * label = ext->ddlist.label; - - if(label == NULL) return; /*Probably the roller is being deleted if the label is NULL.*/ - lv_label_set_align(label, align); - - switch(lv_label_get_align(label)) { - case LV_LABEL_ALIGN_LEFT: lv_obj_align(label, NULL, LV_ALIGN_IN_LEFT_MID, 0, 0); break; - case LV_LABEL_ALIGN_CENTER: lv_obj_align(label, NULL, LV_ALIGN_CENTER, 0, 0); break; - case LV_LABEL_ALIGN_RIGHT: lv_obj_align(label, NULL, LV_ALIGN_IN_RIGHT_MID, 0, 0); break; - } -} - -/** - * Set the selected option - * @param roller pointer to a roller object - * @param sel_opt id of the selected option (0 ... number of option - 1); - * @param anim_en LV_ANIM_ON: set with animation; LV_ANOM_OFF set immediately - */ -void lv_roller_set_selected(lv_obj_t * roller, uint16_t sel_opt, lv_anim_enable_t anim) -{ - LV_ASSERT_OBJ(roller, LV_OBJX_NAME); - -#if LV_USE_ANIMATION == 0 - anim = LV_ANIM_OFF; -#endif - - if(lv_roller_get_selected(roller) == sel_opt) return; - - lv_ddlist_set_selected(roller, sel_opt); - refr_position(roller, anim); -} - -/** - * Set the height to show the given number of rows (options) - * @param roller pointer to a roller object - * @param row_cnt number of desired visible rows - */ -void lv_roller_set_visible_row_count(lv_obj_t * roller, uint8_t row_cnt) -{ - LV_ASSERT_OBJ(roller, LV_OBJX_NAME); - - lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller); - const lv_style_t * style_label = lv_obj_get_style(ext->ddlist.label); - uint8_t n_line_space = (row_cnt > 1) ? row_cnt - 1 : 1; - lv_ddlist_set_fix_height(roller, lv_font_get_line_height(style_label->text.font) * row_cnt + - style_label->text.line_space * n_line_space); -} - -/** - * Set a style of a roller - * @param roller pointer to a roller object - * @param type which style should be set - * @param style pointer to a style - */ -void lv_roller_set_style(lv_obj_t * roller, lv_roller_style_t type, const lv_style_t * style) -{ - LV_ASSERT_OBJ(roller, LV_OBJX_NAME); - - switch(type) { - case LV_ROLLER_STYLE_BG: lv_obj_set_style(roller, style); break; - case LV_ROLLER_STYLE_SEL: lv_ddlist_set_style(roller, LV_DDLIST_STYLE_SEL, style); break; - } -} - -/*===================== - * Getter functions - *====================*/ - -/** - * Get the id of the selected option - * @param roller pointer to a roller object - * @return id of the selected option (0 ... number of option - 1); - */ -uint16_t lv_roller_get_selected(const lv_obj_t * roller) -{ - LV_ASSERT_OBJ(roller, LV_OBJX_NAME); - - lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller); - if(ext->mode == LV_ROLLER_MODE_INIFINITE) { - uint16_t real_id_cnt = ext->ddlist.option_cnt / LV_ROLLER_INF_PAGES; - return lv_ddlist_get_selected(roller) % real_id_cnt; - } else { - return lv_ddlist_get_selected(roller); - } -} - -/** - * Get the align attribute. Default alignment after _create is LV_LABEL_ALIGN_CENTER - * @param roller pointer to a roller object - * @return LV_LABEL_ALIGN_LEFT, LV_LABEL_ALIGN_RIGHT or LV_LABEL_ALIGN_CENTER - */ -lv_label_align_t lv_roller_get_align(const lv_obj_t * roller) -{ - LV_ASSERT_OBJ(roller, LV_OBJX_NAME); - - lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller); - LV_ASSERT_MEM(ext); - LV_ASSERT_MEM(ext->ddlist.label); - return lv_label_get_align(ext->ddlist.label); -} - -/** - * Get the auto width set attribute - * @param roller pointer to a roller object - * @return true: auto size enabled; false: manual width settings enabled - */ -bool lv_roller_get_hor_fit(const lv_obj_t * roller) -{ - LV_ASSERT_OBJ(roller, LV_OBJX_NAME); - - return lv_page_get_scrl_fit_left(roller); -} - -/** - * Get a style of a roller - * @param roller pointer to a roller object - * @param type which style should be get - * @return style pointer to a style - * */ -const lv_style_t * lv_roller_get_style(const lv_obj_t * roller, lv_roller_style_t type) -{ - LV_ASSERT_OBJ(roller, LV_OBJX_NAME); - - switch(type) { - case LV_ROLLER_STYLE_BG: return lv_obj_get_style(roller); - case LV_ROLLER_STYLE_SEL: return lv_ddlist_get_style(roller, LV_DDLIST_STYLE_SEL); - default: return NULL; - } - - /*To avoid warning*/ - return NULL; -} - -/********************** - * STATIC FUNCTIONS - **********************/ - -/** - * Handle the drawing related tasks of the rollers - * @param roller pointer to an object - * @param mask the object will be drawn only in this area - * @param mode LV_DESIGN_COVER_CHK: only check if the object fully covers the 'mask_p' area - * (return 'true' if yes) - * LV_DESIGN_DRAW: draw the object (always return 'true') - * LV_DESIGN_DRAW_POST: drawing after every children are drawn - * @param return true/false, depends on 'mode' - */ -static bool lv_roller_design(lv_obj_t * roller, const lv_area_t * mask, lv_design_mode_t mode) -{ - /*Return false if the object is not covers the mask_p area*/ - if(mode == LV_DESIGN_COVER_CHK) { - return false; - } - /*Draw the object*/ - else if(mode == LV_DESIGN_DRAW_MAIN) { - draw_bg(roller, mask); - - const lv_style_t * style = lv_roller_get_style(roller, LV_ROLLER_STYLE_BG); - lv_opa_t opa_scale = lv_obj_get_opa_scale(roller); - const lv_font_t * font = style->text.font; - lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller); - lv_coord_t font_h = lv_font_get_line_height(font); - lv_area_t rect_area; - rect_area.y1 = roller->coords.y1 + lv_obj_get_height(roller) / 2 - font_h / 2 - style->text.line_space / 2; - if((font_h & 0x1) && (style->text.line_space & 0x1)) rect_area.y1--; /*Compensate the two rounding error*/ - rect_area.y2 = rect_area.y1 + font_h + style->text.line_space - 1; - lv_area_t roller_coords; - lv_obj_get_coords(roller, &roller_coords); - lv_obj_get_inner_coords(roller, &roller_coords); - - rect_area.x1 = roller_coords.x1; - rect_area.x2 = roller_coords.x2; - - lv_draw_rect(&rect_area, mask, ext->ddlist.sel_style, opa_scale); - } - /*Post draw when the children are drawn*/ - else if(mode == LV_DESIGN_DRAW_POST) { - const lv_style_t * style = lv_roller_get_style(roller, LV_ROLLER_STYLE_BG); - lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller); - const lv_font_t * font = style->text.font; - lv_coord_t font_h = lv_font_get_line_height(font); - lv_opa_t opa_scale = lv_obj_get_opa_scale(roller); - - /*Redraw the text on the selected area with a different color*/ - lv_area_t rect_area; - rect_area.y1 = roller->coords.y1 + lv_obj_get_height(roller) / 2 - font_h / 2 - style->text.line_space / 2; - if((font_h & 0x1) && (style->text.line_space & 0x1)) rect_area.y1--; /*Compensate the two rounding error*/ - rect_area.y2 = rect_area.y1 + font_h + style->text.line_space - 1; - rect_area.x1 = roller->coords.x1; - rect_area.x2 = roller->coords.x2; - lv_area_t mask_sel; - bool area_ok; - area_ok = lv_area_intersect(&mask_sel, mask, &rect_area); - if(area_ok) { - const lv_style_t * sel_style = lv_roller_get_style(roller, LV_ROLLER_STYLE_SEL); - lv_style_t new_style; - lv_txt_flag_t txt_align = LV_TXT_FLAG_NONE; - - { - lv_label_align_t label_align = lv_label_get_align(ext->ddlist.label); - - if(LV_LABEL_ALIGN_CENTER == label_align) { - txt_align |= LV_TXT_FLAG_CENTER; - } else if(LV_LABEL_ALIGN_RIGHT == label_align) { - txt_align |= LV_TXT_FLAG_RIGHT; - } - } - - lv_style_copy(&new_style, style); - new_style.text.color = sel_style->text.color; - new_style.text.opa = sel_style->text.opa; - lv_draw_label(&ext->ddlist.label->coords, &mask_sel, &new_style, opa_scale, - lv_label_get_text(ext->ddlist.label), txt_align, NULL, NULL, NULL, lv_obj_get_base_dir(ext->ddlist.label)); - } - } - - return true; -} - -/** - * Signal function of the roller - * @param roller pointer to a roller object - * @param sign a signal type from lv_signal_t enum - * @param param pointer to a signal specific variable - * @return LV_RES_OK: the object is not deleted in the function; LV_RES_INV: the object is deleted - */ -static lv_res_t lv_roller_signal(lv_obj_t * roller, lv_signal_t sign, void * param) -{ - lv_res_t res = LV_RES_OK; - - /*Don't let the drop down list to handle the control signals. It works differently*/ - if(sign != LV_SIGNAL_CONTROL && sign != LV_SIGNAL_FOCUS && sign != LV_SIGNAL_DEFOCUS) { - /* Include the ancient signal function */ - res = ancestor_signal(roller, sign, param); - if(res != LV_RES_OK) return res; - } - if(sign == LV_SIGNAL_GET_TYPE) return lv_obj_handle_get_type_signal(param, LV_OBJX_NAME); - - lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller); - - if(sign == LV_SIGNAL_STYLE_CHG) { - refr_height(roller); - - refr_position(roller, false); - } else if(sign == LV_SIGNAL_CORD_CHG) { - - if(lv_obj_get_width(roller) != lv_area_get_width(param) || - lv_obj_get_height(roller) != lv_area_get_height(param)) { - - refr_height(roller); -#if LV_USE_ANIMATION - lv_anim_del(lv_page_get_scrl(roller), (lv_anim_exec_xcb_t)lv_obj_set_y); -#endif - lv_ddlist_set_selected(roller, ext->ddlist.sel_opt_id); - refr_position(roller, false); - } - } else if(sign == LV_SIGNAL_FOCUS) { -#if LV_USE_GROUP - lv_group_t * g = lv_obj_get_group(roller); - bool editing = lv_group_get_editing(g); - lv_indev_type_t indev_type = lv_indev_get_type(lv_indev_get_act()); - - /*Encoders need special handling*/ - if(indev_type == LV_INDEV_TYPE_ENCODER) { - /*In navigate mode revert the original value*/ - if(!editing) { - if(ext->ddlist.sel_opt_id != ext->ddlist.sel_opt_id_ori) { - ext->ddlist.sel_opt_id = ext->ddlist.sel_opt_id_ori; - refr_position(roller, true); - } - } - /*Save the current state when entered to edit mode*/ - else { - ext->ddlist.sel_opt_id_ori = ext->ddlist.sel_opt_id; - } - } else { - ext->ddlist.sel_opt_id_ori = ext->ddlist.sel_opt_id; /*Save the current value. Used to revert this state if - ENER wont't be pressed*/ - } -#endif - } else if(sign == LV_SIGNAL_DEFOCUS) { -#if LV_USE_GROUP - /*Revert the original state*/ - if(ext->ddlist.sel_opt_id != ext->ddlist.sel_opt_id_ori) { - ext->ddlist.sel_opt_id = ext->ddlist.sel_opt_id_ori; - refr_position(roller, true); - } -#endif - } else if(sign == LV_SIGNAL_CONTROL) { - char c = *((char *)param); - if(c == LV_KEY_RIGHT || c == LV_KEY_DOWN) { - if(ext->ddlist.sel_opt_id + 1 < ext->ddlist.option_cnt) { - uint16_t ori_id = ext->ddlist.sel_opt_id_ori; /*lv_roller_set_selceted will overwrite this*/ - lv_roller_set_selected(roller, ext->ddlist.sel_opt_id + 1, true); - ext->ddlist.sel_opt_id_ori = ori_id; - } - } else if(c == LV_KEY_LEFT || c == LV_KEY_UP) { - if(ext->ddlist.sel_opt_id > 0) { - uint16_t ori_id = ext->ddlist.sel_opt_id_ori; /*lv_roller_set_selceted will overwrite this*/ - lv_roller_set_selected(roller, ext->ddlist.sel_opt_id - 1, true); - ext->ddlist.sel_opt_id_ori = ori_id; - } - } - } - - return res; -} - -/** - * Signal function of the scrollable part of the roller. - * @param roller_scrl ointer to the scrollable part of roller (page) - * @param sign a signal type from lv_signal_t enum - * @param param pointer to a signal specific variable - * @return LV_RES_OK: the object is not deleted in the function; LV_RES_INV: the object is deleted - */ -static lv_res_t lv_roller_scrl_signal(lv_obj_t * roller_scrl, lv_signal_t sign, void * param) -{ - lv_res_t res; - - /* Include the ancient signal function */ - res = ancestor_scrl_signal(roller_scrl, sign, param); - if(res != LV_RES_OK) return res; - if(sign == LV_SIGNAL_GET_TYPE) return lv_obj_handle_get_type_signal(param, LV_OBJX_NAME); - - lv_indev_t * indev = lv_indev_get_act(); - int32_t id = -1; - lv_obj_t * roller = lv_obj_get_parent(roller_scrl); - lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller); - - if(ext->ddlist.label == NULL) - return LV_RES_INV; /*On delete the ddlist signal deletes the label so nothing left to do - here*/ - - const lv_style_t * style_label = lv_obj_get_style(ext->ddlist.label); - const lv_font_t * font = style_label->text.font; - lv_coord_t font_h = lv_font_get_line_height(font); - - if(sign == LV_SIGNAL_DRAG_END) { - /*If dragged then align the list to have an element in the middle*/ - lv_coord_t label_y1 = ext->ddlist.label->coords.y1 - roller->coords.y1; - lv_coord_t label_unit = font_h + style_label->text.line_space; - lv_coord_t mid = (roller->coords.y2 - roller->coords.y1) / 2; - - id = (mid - label_y1 + style_label->text.line_space / 2) / label_unit; - - if(id < 0) id = 0; - if(id >= ext->ddlist.option_cnt) id = ext->ddlist.option_cnt - 1; - - ext->ddlist.sel_opt_id = id; - ext->ddlist.sel_opt_id_ori = id; - res = lv_event_send(roller, LV_EVENT_VALUE_CHANGED, &id); - if(res != LV_RES_OK) return res; - } - /*If picked an option by clicking then set it*/ - else if(sign == LV_SIGNAL_RELEASED) { - if(!lv_indev_is_dragging(indev)) { - id = ext->ddlist.sel_opt_id; -#if LV_USE_GROUP - /*In edit mode go to navigate mode if an option is selected*/ - lv_group_t * g = lv_obj_get_group(roller); - bool editing = lv_group_get_editing(g); - if(editing) lv_group_set_editing(g, false); -#endif - } - } else if(sign == LV_SIGNAL_PRESSED) { -#if LV_USE_ANIMATION - lv_anim_del(roller_scrl, (lv_anim_exec_xcb_t)lv_obj_set_y); -#endif - } - - /*Position the scrollable according to the new selected option*/ - if(id != -1) { - refr_position(roller, true); - } - - return res; -} - -/** - * Draw a rectangle which has gradient on its top and bottom - * @param roller pointer to a roller object - * @param mask pointer to the current mask (from the design function) - */ -static void draw_bg(lv_obj_t * roller, const lv_area_t * mask) -{ - const lv_style_t * style = lv_roller_get_style(roller, LV_ROLLER_STYLE_BG); - lv_area_t half_mask; - lv_area_t half_roller; - lv_coord_t h = lv_obj_get_height(roller); - bool union_ok; - lv_area_copy(&half_roller, &roller->coords); - - half_roller.x1 -= roller->ext_draw_pad; /*Add ext size too (e.g. because of shadow draw) */ - half_roller.x2 += roller->ext_draw_pad; - half_roller.y1 -= roller->ext_draw_pad; - half_roller.y2 = roller->coords.y1 + h / 2; - - union_ok = lv_area_intersect(&half_mask, &half_roller, mask); - - half_roller.x1 += roller->ext_draw_pad; /*Revert ext. size adding*/ - half_roller.x2 -= roller->ext_draw_pad; - half_roller.y1 += roller->ext_draw_pad; - half_roller.y2 += style->body.radius; - - if(union_ok) { - lv_draw_rect(&half_roller, &half_mask, style, lv_obj_get_opa_scale(roller)); - } - - half_roller.x1 -= roller->ext_draw_pad; /*Add ext size too (e.g. because of shadow draw) */ - half_roller.x2 += roller->ext_draw_pad; - half_roller.y2 = roller->coords.y2 + roller->ext_draw_pad; - half_roller.y1 = roller->coords.y1 + h / 2; - if((h & 0x1) == 0) half_roller.y1++; /*With even height the pixels in the middle would be drawn twice*/ - - union_ok = lv_area_intersect(&half_mask, &half_roller, mask); - - half_roller.x1 += roller->ext_draw_pad; /*Revert ext. size adding*/ - half_roller.x2 -= roller->ext_draw_pad; - half_roller.y2 -= roller->ext_draw_pad; - half_roller.y1 -= style->body.radius; - - if(union_ok) { - lv_style_t style_tmp; - memcpy(&style_tmp, style, sizeof(lv_style_t)); - style_tmp.body.main_color = style->body.grad_color; - style_tmp.body.grad_color = style->body.main_color; - lv_draw_rect(&half_roller, &half_mask, &style_tmp, lv_obj_get_opa_scale(roller)); - } -} - -/** - * Refresh the position of the roller. It uses the id stored in: ext->ddlist.selected_option_id - * @param roller pointer to a roller object - * @param anim_en LV_ANIM_ON: refresh with animation; LV_ANOM_OFF: without animation - */ -static void refr_position(lv_obj_t * roller, lv_anim_enable_t anim_en) -{ -#if LV_USE_ANIMATION == 0 - anim_en = LV_ANIM_OFF; -#endif - - lv_obj_t * roller_scrl = lv_page_get_scrl(roller); - lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller); - const lv_style_t * style_label = lv_obj_get_style(ext->ddlist.label); - const lv_font_t * font = style_label->text.font; - lv_coord_t font_h = lv_font_get_line_height(font); - lv_coord_t h = lv_obj_get_height(roller); - uint16_t anim_time = lv_roller_get_anim_time(roller); - - /* Normally the animtaion's `end_cb` sets correct position of the roller is infinite. - * But without animations do it manually*/ - if(anim_en == LV_ANIM_OFF || anim_time == 0) { - inf_normalize(roller_scrl); - } - - int32_t id = ext->ddlist.sel_opt_id; - lv_coord_t line_y1 = - id * (font_h + style_label->text.line_space) + ext->ddlist.label->coords.y1 - roller_scrl->coords.y1; - lv_coord_t new_y = -line_y1 + (h - font_h) / 2; - - if(anim_en == LV_ANIM_OFF || anim_time == 0) { - lv_obj_set_y(roller_scrl, new_y); - } else { -#if LV_USE_ANIMATION - lv_anim_t a; - a.var = roller_scrl; - a.start = lv_obj_get_y(roller_scrl); - a.end = new_y; - a.exec_cb = (lv_anim_exec_xcb_t)lv_obj_set_y; - a.path_cb = lv_anim_path_linear; - a.ready_cb = scroll_anim_ready_cb; - a.act_time = 0; - a.time = anim_time; - a.playback = 0; - a.playback_pause = 0; - a.repeat = 0; - a.repeat_pause = 0; - lv_anim_create(&a); -#endif - } -} - -/** - * Refresh the height of the roller and the scrolable - * @param roller pointer to roller - */ -static void refr_height(lv_obj_t * roller) -{ - lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller); - lv_align_t obj_align = LV_ALIGN_IN_LEFT_MID; - if(ext->ddlist.label) { - lv_label_align_t label_align = lv_label_get_align(ext->ddlist.label); - if(LV_LABEL_ALIGN_CENTER == label_align) - obj_align = LV_ALIGN_CENTER; - else if(LV_LABEL_ALIGN_RIGHT == label_align) - obj_align = LV_ALIGN_IN_RIGHT_MID; - } - - lv_obj_set_height(lv_page_get_scrl(roller), lv_obj_get_height(ext->ddlist.label) + lv_obj_get_height(roller)); - lv_obj_align(ext->ddlist.label, NULL, obj_align, 0, 0); -#if LV_USE_ANIMATION - lv_anim_del(lv_page_get_scrl(roller), (lv_anim_exec_xcb_t)lv_obj_set_y); -#endif - lv_ddlist_set_selected(roller, ext->ddlist.sel_opt_id); -} - -/** - * Set the middle page for the roller if inifinte is enabled - * @param scrl pointer to the roller's scrollable (lv_obj_t *) - */ -static void inf_normalize(void * scrl) -{ - lv_obj_t * roller_scrl = (lv_obj_t *)scrl; - lv_obj_t * roller = lv_obj_get_parent(roller_scrl); - lv_roller_ext_t * ext = lv_obj_get_ext_attr(roller); - - if(ext->mode == LV_ROLLER_MODE_INIFINITE) { - uint16_t real_id_cnt = ext->ddlist.option_cnt / LV_ROLLER_INF_PAGES; - - ext->ddlist.sel_opt_id = ext->ddlist.sel_opt_id % real_id_cnt; - - ext->ddlist.sel_opt_id += (LV_ROLLER_INF_PAGES / 2) * real_id_cnt; /*Select the middle page*/ - - /*Move to the new id*/ - const lv_style_t * style_label = lv_obj_get_style(ext->ddlist.label); - const lv_font_t * font = style_label->text.font; - lv_coord_t font_h = lv_font_get_line_height(font); - lv_coord_t h = lv_obj_get_height(roller); - - lv_coord_t line_y1 = ext->ddlist.sel_opt_id * (font_h + style_label->text.line_space) + - ext->ddlist.label->coords.y1 - roller_scrl->coords.y1; - lv_coord_t new_y = -line_y1 + (h - font_h) / 2; - lv_obj_set_y(roller_scrl, new_y); - } -} - -#if LV_USE_ANIMATION -static void scroll_anim_ready_cb(lv_anim_t * a) -{ - inf_normalize(a->var); -} -#endif - -#endif |