299 lines
8.2 KiB
C
299 lines
8.2 KiB
C
/*
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* Copyright (c) 2019 CTCaer
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file lv_win.h
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*
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*/
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#ifndef LV_WIN_H
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#define LV_WIN_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*********************
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* INCLUDES
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*********************/
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#ifdef LV_CONF_INCLUDE_SIMPLE
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#include "lv_conf.h"
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#else
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#include "../../lv_conf.h"
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#endif
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#if USE_LV_WIN != 0
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/*Testing of dependencies*/
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#if USE_LV_BTN == 0
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#error "lv_win: lv_btn is required. Enable it in lv_conf.h (USE_LV_BTN 1) "
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#endif
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#if USE_LV_LABEL == 0
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#error "lv_win: lv_label is required. Enable it in lv_conf.h (USE_LV_LABEL 1) "
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#endif
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#if USE_LV_IMG == 0
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#error "lv_win: lv_img is required. Enable it in lv_conf.h (USE_LV_IMG 1) "
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#endif
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#if USE_LV_PAGE == 0
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#error "lv_win: lv_page is required. Enable it in lv_conf.h (USE_LV_PAGE 1) "
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#endif
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#include "../lv_core/lv_obj.h"
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#include "lv_cont.h"
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#include "lv_btn.h"
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#include "lv_label.h"
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#include "lv_img.h"
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#include "lv_page.h"
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/*********************
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* DEFINES
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*********************/
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/**********************
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* TYPEDEFS
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**********************/
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/*Data of window*/
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typedef struct
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{
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/*Ext. of ancestor*/
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/*New data for this type */
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lv_obj_t * page; /*Pointer to a page which holds the content*/
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lv_obj_t * header; /*Pointer to the header container of the window*/
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lv_obj_t * title; /*Pointer to the title label of the window*/
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lv_style_t * style_header; /*Style of the header container*/
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lv_style_t * style_btn_rel; /*Control button releases style*/
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lv_style_t * style_btn_pr; /*Control button pressed style*/
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lv_coord_t btn_size; /*Size of the control buttons (square)*/
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} lv_win_ext_t;
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enum {
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LV_WIN_STYLE_BG,
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LV_WIN_STYLE_CONTENT_BG,
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LV_WIN_STYLE_CONTENT_SCRL,
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LV_WIN_STYLE_SB,
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LV_WIN_STYLE_HEADER,
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LV_WIN_STYLE_BTN_REL,
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LV_WIN_STYLE_BTN_PR,
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};
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typedef uint8_t lv_win_style_t;
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/**********************
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* GLOBAL PROTOTYPES
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**********************/
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/**
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* Create a window objects
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* @param par pointer to an object, it will be the parent of the new window
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* @param copy pointer to a window object, if not NULL then the new object will be copied from it
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* @return pointer to the created window
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*/
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lv_obj_t * lv_win_create(lv_obj_t * par, const lv_obj_t * copy);
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/**
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* Delete all children of the scrl object, without deleting scrl child.
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* @param obj pointer to an object
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*/
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void lv_win_clean(lv_obj_t *obj);
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/*======================
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* Add/remove functions
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*=====================*/
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/**
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* Add control button to the header of the window
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* @param win pointer to a window object
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* @param img_src an image source ('lv_img_t' variable, path to file or a symbol)
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* @param rel_action a function pointer to call when the button is released
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* @return pointer to the created button object
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*/
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lv_obj_t * lv_win_add_btn(lv_obj_t * win, const void * img_src, const char * label_src, lv_action_t rel_action);
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/*=====================
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* Setter functions
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*====================*/
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/**
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* A release action which can be assigned to a window control button to close it
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* @param btn pointer to the released button
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* @return always LV_ACTION_RES_INV because the button is deleted with the window
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*/
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lv_res_t lv_win_close_action(lv_obj_t * btn);
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/**
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* Set the title of a window
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* @param win pointer to a window object
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* @param title string of the new title
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*/
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void lv_win_set_title(lv_obj_t * win, const char * title);
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/**
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* Set the control button size of a window
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* @param win pointer to a window object
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* @return control button size
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*/
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void lv_win_set_btn_size(lv_obj_t * win, lv_coord_t size);
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/**
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* Set the layout of the window
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* @param win pointer to a window object
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* @param layout the layout from 'lv_layout_t'
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*/
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void lv_win_set_layout(lv_obj_t *win, lv_layout_t layout);
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/**
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* Set the scroll bar mode of a window
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* @param win pointer to a window object
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* @param sb_mode the new scroll bar mode from 'lv_sb_mode_t'
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*/
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void lv_win_set_sb_mode(lv_obj_t *win, lv_sb_mode_t sb_mode);
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/**
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* Set a style of a window
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* @param win pointer to a window object
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* @param type which style should be set
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* @param style pointer to a style
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*/
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void lv_win_set_style(lv_obj_t *win, lv_win_style_t type, lv_style_t *style);
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/**
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* Set drag status of a window. If set to 'true' window can be dragged like on a PC.
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* @param win pointer to a window object
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* @param en whether dragging is enabled
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*/
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void lv_win_set_drag(lv_obj_t *win, bool en);
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/*=====================
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* Getter functions
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*====================*/
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/**
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* Get the title of a window
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* @param win pointer to a window object
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* @return title string of the window
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*/
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const char * lv_win_get_title(const lv_obj_t * win);
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/**
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* Get the content holder object of window (`lv_page`) to allow additional customization
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* @param win pointer to a window object
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* @return the Page object where the window's content is
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*/
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lv_obj_t * lv_win_get_content(const lv_obj_t * win);
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/**
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* Get the control button size of a window
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* @param win pointer to a window object
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* @return control button size
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*/
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lv_coord_t lv_win_get_btn_size(const lv_obj_t * win);
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/**
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* Get the pointer of a widow from one of its control button.
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* It is useful in the action of the control buttons where only button is known.
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* @param ctrl_btn pointer to a control button of a window
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* @return pointer to the window of 'ctrl_btn'
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*/
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lv_obj_t * lv_win_get_from_btn(const lv_obj_t * ctrl_btn);
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/**
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* Get the layout of a window
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* @param win pointer to a window object
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* @return the layout of the window (from 'lv_layout_t')
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*/
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lv_layout_t lv_win_get_layout(lv_obj_t *win);
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/**
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* Get the scroll bar mode of a window
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* @param win pointer to a window object
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* @return the scroll bar mode of the window (from 'lv_sb_mode_t')
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*/
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lv_sb_mode_t lv_win_get_sb_mode(lv_obj_t *win);
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/**
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* Get width of the content area (page scrollable) of the window
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* @param win pointer to a window object
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* @return the width of the content area
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*/
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lv_coord_t lv_win_get_width(lv_obj_t * win);
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/**
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* Get a style of a window
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* @param win pointer to a button object
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* @param type which style window be get
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* @return style pointer to a style
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*/
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lv_style_t * lv_win_get_style(const lv_obj_t *win, lv_win_style_t type);
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/**
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* Get drag status of a window. If set to 'true' window can be dragged like on a PC.
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* @param win pointer to a window object
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* @return whether window is draggable
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*/
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static inline bool lv_win_get_drag(const lv_obj_t *win)
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{
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return lv_obj_get_drag(win);
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}
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/*=====================
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* Other functions
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*====================*/
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/**
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* Focus on an object. It ensures that the object will be visible in the window.
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* @param win pointer to a window object
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* @param obj pointer to an object to focus (must be in the window)
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* @param anim_time scroll animation time in milliseconds (0: no animation)
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*/
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void lv_win_focus(lv_obj_t * win, lv_obj_t * obj, uint16_t anim_time);
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/**
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* Scroll the window horizontally
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* @param win pointer to a window object
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* @param dist the distance to scroll (< 0: scroll right; > 0 scroll left)
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*/
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static inline void lv_win_scroll_hor(lv_obj_t * win, lv_coord_t dist)
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{
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lv_win_ext_t * ext = (lv_win_ext_t *)lv_obj_get_ext_attr(win);
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lv_page_scroll_hor(ext->page, dist);
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}
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/**
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* Scroll the window vertically
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* @param win pointer to a window object
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* @param dist the distance to scroll (< 0: scroll down; > 0 scroll up)
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*/
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static inline void lv_win_scroll_ver(lv_obj_t * win, lv_coord_t dist)
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{
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lv_win_ext_t * ext = (lv_win_ext_t *)lv_obj_get_ext_attr(win);
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lv_page_scroll_ver(ext->page, dist);
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}
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/**********************
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* MACROS
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**********************/
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#endif /*USE_LV_WIN*/
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /*LV_WIN_H*/
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