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aca6529455
lvgl/lv_objx/lv_page.c
Kiss-Vamosi Gabor aca6529455 lv_list basic implementetion
2016-06-22 17:25:42 +02:00

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/**
* @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"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void lv_page_sb_refresh(lv_obj_t* main_dp);
/**********************
* STATIC VARIABLES
**********************/
static lv_pages_t lv_pages_def =
{
.bg_rects.objs.color = COLOR_WHITE,
.bg_rects.gcolor = COLOR_SILVER,
.bg_rects.bcolor = COLOR_GRAY,
.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,
.bg_rects.vpad = 10,
.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_width= 8 * LV_STYLE_MULT,
.sb_opa=50,
.sb_mode = LV_PAGE_SB_MODE_ON,
.margin_hor = 10 * LV_STYLE_MULT,
.margin_ver = 10 * LV_STYLE_MULT,
};
static lv_pages_t lv_pages_paper =
{
.bg_rects.objs.color = COLOR_WHITE,
.bg_rects.gcolor = COLOR_WHITE,
.bg_rects.bcolor = COLOR_GRAY,
.bg_rects.bopa = 100,
.bg_rects.bwidth = 2 * LV_STYLE_MULT,
.bg_rects.round = 0 * LV_STYLE_MULT,
.bg_rects.empty = 0,
.bg_rects.hpad = 20 * LV_STYLE_MULT,
.bg_rects.vpad = 20 * LV_STYLE_MULT,
.sb_rects.objs.color = COLOR_BLACK,
.sb_rects.gcolor = COLOR_BLACK,
.sb_rects.bcolor = COLOR_SILVER,
.sb_rects.bopa = 100,
.sb_rects.bwidth = 1 * LV_STYLE_MULT,
.sb_rects.round = 5 * LV_STYLE_MULT,
.sb_rects.empty = 0,
.sb_width = 10 * LV_STYLE_MULT,
.sb_opa=50,
.sb_mode = LV_PAGE_SB_MODE_ON,
.margin_hor = 15 * LV_STYLE_MULT,
.margin_ver = 15 * LV_STYLE_MULT,
};
static lv_pages_t lv_pages_transp =
{
.bg_rects.empty = 1,
.bg_rects.hpad = 1,
.bg_rects.vpad = 1,
.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_width = 8 * LV_STYLE_MULT,
.sb_opa = 50,
.sb_mode = LV_PAGE_SB_MODE_AUTO,
.margin_hor = 0 * LV_STYLE_MULT,
.margin_ver = 0 * LV_STYLE_MULT,
};
/**********************
* 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
* @return pointer to the created page
*/
lv_obj_t* lv_page_create(lv_obj_t * par_dp, lv_obj_t * ori_dp)
{
lv_obj_t* new_dp = NULL;
/*Create a basic object. Page elements will be stored here*/
new_dp = lv_rect_create(par_dp, ori_dp);
/*Init the new object*/
lv_page_ext_t * page_p = lv_obj_alloc_ext(new_dp, sizeof(lv_page_ext_t));
/*Init the main rectangle if it is not copied*/
if(ori_dp == NULL) {
lv_obj_set_drag(new_dp, true);
lv_obj_set_drag_throw(new_dp, true);
lv_obj_set_style(new_dp, &lv_pages_def);
lv_rect_set_pad_en(new_dp, true, true);
} else {
lv_obj_set_style(new_dp, lv_obj_get_style(ori_dp));
}
lv_pages_t * pages_p = lv_obj_get_style(new_dp);
/*Create horizontal scroll bar*/
page_p->sbh_dp = lv_rect_create(par_dp, NULL);
lv_obj_set_height(page_p->sbh_dp, pages_p->sb_width);
lv_obj_set_style(page_p->sbh_dp, &pages_p->sb_rects);
lv_obj_set_click(page_p->sbh_dp, false);
if(pages_p->sb_mode == LV_PAGE_SB_MODE_ON) {
lv_obj_set_opa(page_p->sbh_dp, (pages_p->sb_opa * OPA_COVER) / 100);
} else {
lv_obj_set_opa(page_p->sbh_dp, OPA_TRANSP);
}
/*Create vertical scroll bar*/
page_p->sbv_dp =lv_rect_create(par_dp, NULL);
lv_obj_set_width(page_p->sbv_dp, pages_p->sb_width);
lv_obj_set_style(page_p->sbv_dp, &pages_p->sb_rects);
lv_obj_set_click(page_p->sbv_dp, false);
if(lv_pages_def.sb_mode == LV_PAGE_SB_MODE_ON) {
lv_obj_set_opa(page_p->sbv_dp, (pages_p->sb_opa * OPA_COVER) / 100);
} else {
lv_obj_set_opa(page_p->sbv_dp, OPA_TRANSP);
}
lv_obj_set_signal_f(new_dp, lv_page_signal);
lv_page_sb_refresh(new_dp);
return new_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) {
cord_t new_x;
cord_t new_y;
bool refr_x = false;
bool refr_y = false;
area_t page_cords;
area_t par_cords;
lv_obj_t * par_dp = lv_obj_get_parent(obj_dp);
lv_page_ext_t * page_ext_p = lv_obj_get_ext(obj_dp);
lv_pages_t * pages_p = lv_obj_get_style(obj_dp);
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(par_dp, &par_cords);
lv_obj_get_cords(obj_dp, &page_cords);
/*page width smaller then parent width? -> align to left*/
if(area_get_width(&page_cords) <= area_get_width(&par_cords) - pages_p->margin_hor * 2) {
if(page_cords.x1 - pages_p->margin_hor != par_cords.x1) {
new_x = pages_p->margin_hor;
refr_x = true;
}
} else {
if(page_cords.x2 + pages_p->margin_hor < par_cords.x2) {
new_x = area_get_width(&par_cords) - area_get_width(&page_cords) - pages_p->margin_hor; /* Right align */
refr_x = true;
}
if (page_cords.x1 - pages_p->margin_hor > par_cords.x1) {
new_x = pages_p->margin_hor; /*Left align*/
refr_x = true;
}
}
/*Wrong in y?*/
if(area_get_height(&page_cords) <= area_get_height(&par_cords) - pages_p->margin_ver * 2) {
if(page_cords.y1 - pages_p->margin_ver != par_cords.y1) {
new_y = pages_p->margin_ver;
refr_y = true;
}
} else {
if(page_cords.y2 + pages_p->margin_ver < par_cords.y2) {
new_y = area_get_height(&par_cords) - area_get_height(&page_cords) - pages_p->margin_ver; /* Bottom align */
refr_y = true;
}
if (page_cords.y1 - pages_p->margin_ver > par_cords.y1) {
new_y = pages_p->margin_ver; /*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(obj_dp);
break;
case LV_SIGNAL_DRAG_BEGIN:
if(pages_p->sb_mode == LV_PAGE_SB_MODE_AUTO ) {
if(lv_obj_get_height(page_ext_p->sbv_dp) < lv_obj_get_height(par_dp) - pages_p->sb_width) {
lv_obj_set_opa(page_ext_p->sbv_dp, (pages_p->sb_opa * OPA_COVER) / 100);
}
if(lv_obj_get_width(page_ext_p->sbh_dp) < lv_obj_get_width(par_dp) - pages_p->sb_width) {
lv_obj_set_opa(page_ext_p->sbh_dp, (pages_p->sb_opa * OPA_COVER) / 100);
}
}
break;
case LV_SIGNAL_DRAG_END:
if(pages_p->sb_mode == LV_PAGE_SB_MODE_AUTO) {
lv_obj_set_opa(page_ext_p->sbh_dp, OPA_TRANSP);
lv_obj_set_opa(page_ext_p->sbv_dp, OPA_TRANSP);
}
break;
case LV_SIGNAL_STYLE_CHG:
/* Set the styles only if they are different else infinite loop
* will be created from lv_obj_set_style*/
if(lv_obj_get_style(page_ext_p->sbh_dp) != &pages_p->sb_rects) {
lv_obj_set_style(page_ext_p->sbh_dp, &pages_p->sb_rects);
lv_obj_set_style(page_ext_p->sbv_dp, &pages_p->sb_rects);
lv_obj_set_style(obj_dp, &pages_p->bg_rects);
}
if(pages_p->sb_mode == LV_PAGE_SB_MODE_ON) {
lv_obj_set_opa(page_ext_p->sbv_dp, (pages_p->sb_opa * OPA_COVER) / 100);
lv_obj_set_opa(page_ext_p->sbh_dp, (pages_p->sb_opa * OPA_COVER) / 100);
} else {
lv_obj_set_opa(page_ext_p->sbv_dp, OPA_TRANSP);
lv_obj_set_opa(page_ext_p->sbh_dp, OPA_TRANSP);
}
lv_page_sb_refresh(obj_dp);
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_PAPER:
style_p = &lv_pages_paper;
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')
* @param return true/false, depends on 'mode'
*/
static void lv_page_sb_refresh(lv_obj_t* page_dp)
{
lv_page_ext_t * page_p = lv_obj_get_ext(page_dp);
lv_pages_t * pages_p = lv_obj_get_style(page_dp);
lv_obj_t* par_dp = lv_obj_get_parent(page_dp);
cord_t size_tmp;
cord_t page_w = lv_obj_get_width(page_dp) + 2 * pages_p->margin_hor;
cord_t page_h = lv_obj_get_height(page_dp) + 2 * pages_p->margin_ver;
cord_t par_w = lv_obj_get_width(par_dp);
cord_t par_h = lv_obj_get_height(par_dp);
/*Horizontal scrollbar*/
if(page_w <= par_w) { /*Full sized scroll bar*/
lv_obj_set_width(page_p->sbh_dp, par_w - pages_p->sb_width);
lv_obj_set_pos(page_p->sbh_dp, 0, par_h - pages_p->sb_width);
lv_obj_set_opa(page_p->sbh_dp, OPA_TRANSP);
} else {
if(pages_p->sb_mode == LV_PAGE_SB_MODE_ON) {
lv_obj_set_opa(page_p->sbh_dp, (pages_p->sb_opa * OPA_COVER) / 100);
}
size_tmp = ((par_w * (par_w - pages_p->sb_width)) / page_w);
lv_obj_set_width(page_p->sbh_dp, size_tmp);
lv_obj_set_pos(page_p->sbh_dp,
( -(lv_obj_get_x(page_dp) - pages_p->margin_hor) * (par_w - size_tmp - pages_p->sb_width)) /
(page_w - par_w),
par_h - pages_p->sb_width);
}
/*Vertical scrollbar*/
if(page_h <= par_h) { /*Full sized scroll bar*/
lv_obj_set_height(page_p->sbv_dp, par_h - pages_p->sb_width);
lv_obj_set_pos(page_p->sbv_dp, par_w - pages_p->sb_width, 0);
lv_obj_set_opa(page_p->sbv_dp, OPA_TRANSP);
} else {
if(pages_p->sb_mode == LV_PAGE_SB_MODE_ON) {
lv_obj_set_opa(page_p->sbv_dp, (pages_p->sb_opa * OPA_COVER) / 100);
}
size_tmp = ((par_h * (par_h - pages_p->sb_width)) / page_h);
lv_obj_set_height(page_p->sbv_dp, size_tmp);
lv_obj_set_pos(page_p->sbv_dp,
par_w - pages_p->sb_width,
(-(lv_obj_get_y(page_dp) - pages_p->margin_ver) * (par_h - size_tmp - pages_p->sb_width)) /
(page_h - par_h));
}
}
#endif
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