/** * @file lv_page.c * */ /********************* * INCLUDES *********************/ #include "lv_conf.h" #if USE_LV_PAGE != 0 #include "misc/math/math_base.h" #include "../lv_objx/lv_page.h" #include "../lv_objx/lv_rect.h" #include "../lv_draw/lv_draw.h" #include "../lv_obj/lv_refr.h" /********************* * DEFINES *********************/ /********************** * TYPEDEFS **********************/ /********************** * STATIC PROTOTYPES **********************/ static void lv_page_sb_refresh(lv_obj_t* main_dp); static bool lv_page_design(lv_obj_t* obj_dp, const area_t * mask_p, lv_design_mode_t mode); static bool lv_scrolling_signal(lv_obj_t* obj_dp, lv_signal_t sign, void* param); /********************** * STATIC VARIABLES **********************/ static lv_design_f_t ancestor_design_f; static lv_pages_t lv_pages_def = { .bg_rects.objs.color = COLOR_MAKE(0x50, 0x70, 0x90), .bg_rects.gcolor = COLOR_MAKE(0x70, 0xA0, 0xC0), .bg_rects.bcolor = COLOR_WHITE, .bg_rects.bopa = 50, .bg_rects.bwidth = 2 * LV_STYLE_MULT, .bg_rects.round = 4 * LV_STYLE_MULT, .bg_rects.empty = 0, .bg_rects.hpad = 10 * LV_STYLE_MULT, .bg_rects.vpad = 10 * LV_STYLE_MULT, .bg_rects.opad = 5 * LV_STYLE_MULT, .scrable_rects.objs.color = COLOR_WHITE, .scrable_rects.gcolor = COLOR_SILVER, .scrable_rects.bcolor = COLOR_GRAY, .scrable_rects.bopa = 50, .scrable_rects.bwidth = 0 * LV_STYLE_MULT, .scrable_rects.round = 2 * LV_STYLE_MULT, .scrable_rects.empty = 0, .scrable_rects.hpad = 10 * LV_STYLE_MULT, .scrable_rects.vpad = 10 * LV_STYLE_MULT, .scrable_rects.opad = 5 * LV_STYLE_MULT, .sb_rects.objs.color = COLOR_BLACK, .sb_rects.gcolor = COLOR_BLACK, .sb_rects.bcolor = COLOR_WHITE, .sb_rects.bopa = 50, .sb_rects.bwidth = 1 * LV_STYLE_MULT, .sb_rects.round = 5 * LV_STYLE_MULT, .sb_rects.empty = 0, .sb_rects.hpad = 0, .sb_rects.vpad = 0, .sb_rects.opad = 0, .sb_width= 8 * LV_STYLE_MULT, .sb_opa=50, .sb_mode = LV_PAGE_SB_MODE_AUTO, }; static lv_pages_t lv_pages_transp = { .bg_rects.objs.color = COLOR_MAKE(0x50, 0x70, 0x90), .bg_rects.gcolor = COLOR_MAKE(0x70, 0xA0, 0xC0), .bg_rects.bcolor = COLOR_WHITE, .bg_rects.bopa = 50, .bg_rects.bwidth = 0 * LV_STYLE_MULT, .bg_rects.round = 2 * LV_STYLE_MULT, .bg_rects.empty = 0, .bg_rects.hpad = 10 * LV_STYLE_MULT, .bg_rects.vpad = 10 * LV_STYLE_MULT, .bg_rects.opad = 5 * LV_STYLE_MULT, .scrable_rects.objs.transp = 1, .scrable_rects.empty = 1, .scrable_rects.bwidth = 0, .scrable_rects.hpad = 10 * LV_STYLE_MULT, .scrable_rects.vpad = 10 * LV_STYLE_MULT, .scrable_rects.vpad = 10 * LV_STYLE_MULT, .sb_rects.objs.color = COLOR_BLACK, .sb_rects.gcolor = COLOR_BLACK, .sb_rects.bcolor = COLOR_WHITE, .sb_rects.bopa = 0, .sb_rects.bwidth = 1 * LV_STYLE_MULT, .sb_rects.round = 5 * LV_STYLE_MULT, .sb_rects.empty = 0, .sb_rects.hpad = 0, .sb_rects.vpad = 0, .sb_rects.opad = 0, .sb_width = 8 * LV_STYLE_MULT, .sb_opa = 50, .sb_mode = LV_PAGE_SB_MODE_AUTO, }; /********************** * MACROS **********************/ /********************** * GLOBAL FUNCTIONS **********************/ /*----------------- * Create function *-----------------*/ /** * Create a page objects * @param par_dp pointer to an object, it will be the parent of the new page * @param copy_dp pointer to a page object, if not NULL then the new object will be copied from it * @return pointer to the created page */ lv_obj_t* lv_page_create(lv_obj_t * par_dp, lv_obj_t * copy_dp) { /*Create the ancestor object*/ lv_obj_t * new_obj_dp = lv_rect_create(par_dp, copy_dp); dm_assert(new_obj_dp); /*Allocate the object type specific extended data*/ lv_page_ext_t * ext_dp = lv_obj_alloc_ext(new_obj_dp, sizeof(lv_page_ext_t)); dm_assert(ext_dp); if(ancestor_design_f == NULL) { ancestor_design_f = lv_obj_get_design_f(new_obj_dp); } /*Init the new page object*/ if(copy_dp == NULL) { ext_dp->scrolling_dp = lv_rect_create(new_obj_dp, NULL); lv_obj_set_signal_f(ext_dp->scrolling_dp, lv_scrolling_signal); lv_obj_set_drag(ext_dp->scrolling_dp, true); lv_obj_set_drag_throw(ext_dp->scrolling_dp, true); lv_rect_set_fit(ext_dp->scrolling_dp, true, true); lv_obj_set_style(ext_dp->scrolling_dp, &lv_pages_def.scrable_rects); /* Add the signal function only if 'scrolling_dp' is created * because everything has to be ready before any signal is received*/ lv_obj_set_signal_f(new_obj_dp, lv_page_signal); lv_obj_set_design_f(new_obj_dp, lv_page_design); lv_obj_set_style(new_obj_dp, &lv_pages_def); } else { lv_page_ext_t * copy_ext_dp = lv_obj_get_ext(copy_dp); ext_dp->scrolling_dp = lv_rect_create(new_obj_dp, copy_ext_dp->scrolling_dp); lv_obj_set_signal_f(ext_dp->scrolling_dp, lv_scrolling_signal); /* Add the signal function only if 'scrolling_dp' is created * because everything has to be ready before any signal is received*/ lv_obj_set_signal_f(new_obj_dp, lv_page_signal); lv_obj_set_design_f(new_obj_dp, lv_page_design); lv_obj_set_style(new_obj_dp, lv_obj_get_style(copy_dp)); } lv_page_sb_refresh(new_obj_dp); return new_obj_dp; } /** * Signal function of the page * @param obj_dp pointer to a page object * @param sign a signal type from lv_signal_t enum * @param param pointer to a signal specific variable */ bool lv_page_signal(lv_obj_t* obj_dp, lv_signal_t sign, void* param) { bool obj_valid = true; /* Include the ancient signal function */ obj_valid = lv_rect_signal(obj_dp, sign, param); /* The object can be deleted so check its validity and then * make the object specific signal handling */ if(obj_valid != false) { lv_page_ext_t * page_ext_p = lv_obj_get_ext(obj_dp); lv_pages_t * pages_p = lv_obj_get_style(obj_dp); lv_obj_t * child; switch(sign) { case LV_SIGNAL_CHILD_CHG: /*Be sure, only scrollable object is on the page*/ child = lv_obj_get_child(obj_dp, NULL); while(child != NULL) { if(child != page_ext_p->scrolling_dp) { lv_obj_t * tmp = child; child = lv_obj_get_child(obj_dp, child); /*Get the next child before move this*/ lv_obj_set_parent(tmp, page_ext_p->scrolling_dp); } else { child = lv_obj_get_child(obj_dp, child); } } break; case LV_SIGNAL_STYLE_CHG: area_set_height(&page_ext_p->sbh, pages_p->sb_width); area_set_width(&page_ext_p->sbv, pages_p->sb_width); lv_obj_set_style(page_ext_p->scrolling_dp, &pages_p->scrable_rects); if(pages_p->sb_mode == LV_PAGE_SB_MODE_ON) { page_ext_p->sbh_draw = 1; page_ext_p->sbv_draw = 1; } else { page_ext_p->sbh_draw = 0; page_ext_p->sbv_draw = 0; } lv_page_sb_refresh(obj_dp); break; case LV_SIGNAL_CORD_CHG: lv_page_sb_refresh(obj_dp); break; default: break; } } return obj_valid; } /** * Signal function of the scrollable part of a page * @param obj_dp pointer to the scrollable object * @param sign a signal type from lv_signal_t enum * @param param pointer to a signal specific variable */ static bool lv_scrolling_signal(lv_obj_t* obj_dp, lv_signal_t sign, void* param) { bool obj_valid = true; /* Include the ancient signal function */ obj_valid = lv_rect_signal(obj_dp, sign, param); /* The object can be deleted so check its validity and then * make the object specific signal handling */ if(obj_valid != false) { cord_t new_x; cord_t new_y; bool refr_x = false; bool refr_y = false; area_t page_cords; area_t obj_cords; lv_obj_t * page_p = lv_obj_get_parent(obj_dp); lv_pages_t * pages_p = lv_obj_get_style(page_p); lv_page_ext_t * page_ext_dp = lv_obj_get_ext(page_p); cord_t hpad = pages_p->bg_rects.hpad; cord_t vpad = pages_p->bg_rects.vpad; switch(sign) { case LV_SIGNAL_CORD_CHG: new_x = lv_obj_get_x(obj_dp); new_y = lv_obj_get_y(obj_dp); lv_obj_get_cords(obj_dp, &obj_cords); lv_obj_get_cords(page_p, &page_cords); /*scrollable width smaller then page width? -> align to left*/ if(area_get_width(&obj_cords) + 2 * hpad < area_get_width(&page_cords)) { if(obj_cords.x1 != page_cords.x1 + hpad) { new_x = hpad; refr_x = true; } } else { /*The edges of the scrollable can not be in the page (minus hpad) */ if(obj_cords.x2 < page_cords.x2 - hpad) { new_x = area_get_width(&page_cords) - area_get_width(&obj_cords) - hpad; /* Right align */ refr_x = true; } if (obj_cords.x1 > page_cords.x1 + hpad) { new_x = hpad; /*Left align*/ refr_x = true; } } /*scrollable height smaller then page height? -> align to left*/ if(area_get_height(&obj_cords) + 2 * vpad < area_get_height(&page_cords)) { if(obj_cords.y1 != page_cords.y1 + vpad) { new_y = vpad; refr_y = true; } } else { /*The edges of the scrollable can not be in the page (minus vpad) */ if(obj_cords.y2 < page_cords.y2 - vpad) { new_y = area_get_height(&page_cords) - area_get_height(&obj_cords) - vpad; /* Bottom align */ refr_y = true; } if (obj_cords.y1 > page_cords.y1 + vpad) { new_y = vpad; /*Top align*/ refr_y = true; } } if(refr_x != false || refr_y != false) { lv_obj_set_pos(obj_dp, new_x, new_y); } lv_page_sb_refresh(page_p); break; case LV_SIGNAL_DRAG_BEGIN: if(pages_p->sb_mode == LV_PAGE_SB_MODE_AUTO ) { if(area_get_height(&page_ext_dp->sbv) < lv_obj_get_height(obj_dp) - pages_p->sb_width) { page_ext_dp->sbv_draw = 1; lv_inv_area(&page_ext_dp->sbv); } if(area_get_width(&page_ext_dp->sbh) < lv_obj_get_width(obj_dp) - pages_p->sb_width) { page_ext_dp->sbh_draw = 1; lv_inv_area(&page_ext_dp->sbh); } } break; case LV_SIGNAL_DRAG_END: if(pages_p->sb_mode == LV_PAGE_SB_MODE_AUTO) { page_ext_dp->sbh_draw = 0; page_ext_dp->sbv_draw = 0; lv_inv_area(&page_ext_dp->sbh); lv_inv_area(&page_ext_dp->sbv); } break; default: break; } } return obj_valid; } /** * Glue the object to the page. After it the page can be moved (dragged) with this object too. * @param obj_dp pointer to an object on a page * @param en true: enable glue, false: disable glue */ void lv_page_glue_obj(lv_obj_t* obj_dp, bool en) { lv_obj_set_drag_parent(obj_dp, en); lv_obj_set_drag(obj_dp, en); } /** * Return with a pointer to a built-in style and/or copy it to a variable * @param style a style name from lv_pages_builtin_t enum * @param copy_p copy the style to this variable. (NULL if unused) * @return pointer to an lv_pages_t style */ lv_pages_t * lv_pages_get(lv_pages_builtin_t style, lv_pages_t * to_copy) { lv_pages_t * style_p; switch(style) { case LV_PAGES_DEF: style_p = &lv_pages_def; break; case LV_PAGES_TRANSP: style_p = &lv_pages_transp; break; default: style_p = &lv_pages_def; } if(to_copy != NULL) { if(style_p != NULL) memcpy(to_copy, style_p, sizeof(lv_pages_t)); else memcpy(to_copy, &lv_pages_def, sizeof(lv_pages_t)); } return style_p; } /*===================== * Setter functions *====================*/ /*===================== * Getter functions *====================*/ /********************** * STATIC FUNCTIONS **********************/ /** * Handle the drawing related tasks of the pages * @param obj_dp 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_page_design(lv_obj_t* obj_dp, const area_t * mask_p, lv_design_mode_t mode) { if(mode == LV_DESIGN_COVER_CHK) { return ancestor_design_f(obj_dp, mask_p, mode); } else if(mode == LV_DESIGN_DRAW_MAIN) { ancestor_design_f(obj_dp, mask_p, mode); } else if(mode == LV_DESIGN_DRAW_POST) { /*Draw the scroll bars finally*/ lv_page_ext_t * page_ext_dp = lv_obj_get_ext(obj_dp); lv_pages_t * pages_p = lv_obj_get_style(obj_dp); opa_t sb_opa = lv_obj_get_opa(obj_dp) * pages_p->sb_opa /100; /*Draw the scrollbars*/ if(page_ext_dp->sbh_draw != 0) { lv_draw_rect(&page_ext_dp->sbh, mask_p, &pages_p->sb_rects, sb_opa); } if(page_ext_dp->sbv_draw != 0) { lv_draw_rect(&page_ext_dp->sbv, mask_p, &pages_p->sb_rects, sb_opa); } } return true; } /** * Handle the drawing related tasks of the pages * @param obj_dp 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') * @param return true/false, depends on 'mode' */ static void lv_page_sb_refresh(lv_obj_t* page_dp) { lv_page_ext_t * page_ext_dp = lv_obj_get_ext(page_dp); lv_pages_t * pages_p = lv_obj_get_style(page_dp); lv_obj_t* scrolling_dp = page_ext_dp->scrolling_dp; cord_t size_tmp; cord_t scrolling_w = lv_obj_get_width(scrolling_dp); cord_t scrolling_h = lv_obj_get_height(scrolling_dp); cord_t hpad = pages_p->bg_rects.hpad; cord_t vpad = pages_p->bg_rects.vpad; cord_t obj_w = lv_obj_get_width(page_dp); cord_t obj_h = lv_obj_get_height(page_dp); cord_t page_x0 = page_dp->cords.x1; cord_t page_y0 = page_dp->cords.y1; lv_inv_area(&page_ext_dp->sbh); lv_inv_area(&page_ext_dp->sbv); /*Horizontal scrollbar*/ if(scrolling_w <= obj_w - 2 * hpad) { /*Full sized scroll bar*/ area_set_width(&page_ext_dp->sbh, obj_w - pages_p->sb_width); area_set_pos(&page_ext_dp->sbh, page_x0, page_y0 + obj_h - pages_p->sb_width); } else { if(pages_p->sb_mode == LV_PAGE_SB_MODE_ON) { page_ext_dp->sbh_draw = 1; } size_tmp = (((obj_w - hpad) * (obj_w - pages_p->sb_width)) / scrolling_w); area_set_width(&page_ext_dp->sbh, size_tmp); area_set_pos(&page_ext_dp->sbh, page_x0 + ( -(lv_obj_get_x(scrolling_dp) - hpad) * (obj_w - size_tmp - pages_p->sb_width)) / (scrolling_w - obj_w + 2 * hpad), page_y0 + obj_h - pages_p->sb_width); } /*Vertical scrollbar*/ if(scrolling_h <= obj_h - 2 * vpad) { /*Full sized scroll bar*/ area_set_height(&page_ext_dp->sbv, obj_h - pages_p->sb_width); area_set_pos(&page_ext_dp->sbv, page_x0 + obj_w - pages_p->sb_width, 0); } else { if(pages_p->sb_mode == LV_PAGE_SB_MODE_ON) { page_ext_dp->sbv_draw = 1; } size_tmp = (((obj_h - vpad) * (obj_h - pages_p->sb_width)) / scrolling_h); area_set_height(&page_ext_dp->sbv, size_tmp); area_set_pos(&page_ext_dp->sbv, page_x0 + obj_w - pages_p->sb_width, page_y0 + (-(lv_obj_get_y(scrolling_dp) - vpad) * (obj_h - size_tmp - pages_p->sb_width)) / (scrolling_h - obj_h + 2 * vpad)); } lv_inv_area(&page_ext_dp->sbh); lv_inv_area(&page_ext_dp->sbv); } #endif