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/*
* Copyright 2024 jacqueline <me@jacqueline.id.au>
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#include "ui/themes.hpp"
#include "core/lv_obj.h"
#include "core/lv_obj_style.h"
#include "core/lv_obj_tree.h"
#include "draw/lv_draw_rect.h"
#include "esp_log.h"
#include "misc/lv_color.h"
#include "misc/lv_style.h"
#include "widgets/bar/lv_bar.h"
#include "widgets/button/lv_button.h"
#include "widgets/slider/lv_slider.h"
#include "themes.hpp"
namespace ui {
namespace themes {
static void theme_apply_cb(lv_theme_t* th, lv_obj_t* obj) {
reinterpret_cast<Theme*>(th->user_data)->Callback(obj);
}
Theme::Theme() {
lv_theme_t* parent_theme = lv_disp_get_theme(NULL);
theme_ = *parent_theme;
theme_.user_data = this;
/*Set the parent theme and the style apply callback for the new theme*/
lv_theme_set_parent(&theme_, parent_theme);
lv_theme_set_apply_cb(&theme_, theme_apply_cb);
}
void Theme::Apply(void) {
lv_disp_set_theme(NULL, &theme_);
}
void Theme::Callback(lv_obj_t* obj) {
// Find and apply base styles
if (auto search = style_map.find("base"); search != style_map.end()) {
for (const auto& pair : search->second) {
lv_obj_add_style(obj, pair.second, pair.first);
}
}
// Determine class name
std::string class_name;
if (lv_obj_check_type(obj, &lv_button_class)) {
class_name = "button";
} else if (lv_obj_check_type(obj, &lv_list_button_class)) {
class_name = "listbutton";
} else if (lv_obj_check_type(obj, &lv_bar_class)) {
class_name = "bar";
} else if (lv_obj_check_type(obj, &lv_slider_class)) {
class_name = "slider";
} else if (lv_obj_check_type(obj, &lv_switch_class)) {
class_name = "switch";
} else if (lv_obj_check_type(obj, &lv_dropdown_class)) {
class_name = "dropdown";
} else if (lv_obj_check_type(obj, &lv_dropdownlist_class)) {
class_name = "dropdownlist";
}
// Apply all styles from class
if (auto search = style_map.find(class_name); search != style_map.end()) {
for (const auto& pair : search->second) {
lv_obj_add_style(obj, pair.second, pair.first);
}
}
}
void Theme::ApplyStyle(lv_obj_t* obj, std::string style_key) {
if (auto search = style_map.find(style_key); search != style_map.end()) {
for (const auto& pair : search->second) {
lv_obj_remove_style(obj, pair.second, pair.first);
lv_obj_add_style(obj, pair.second, pair.first);
}
}
}
void Theme::Reset() {
style_map.clear();
}
auto Theme::instance() -> Theme* {
static Theme sTheme{};
return &sTheme;
}
void Theme::AddStyle(std::string key, int selector, lv_style_t* style) {
style_map.try_emplace(key, std::vector<std::pair<int, lv_style_t*>>{});
if (auto search = style_map.find(key); search != style_map.end()) {
// Key exists
auto& vec = search->second;
// Add it to the list
vec.push_back(std::make_pair(selector, style));
}
}
} // namespace themes
} // namespace ui
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