103 lines
2.9 KiB
C++
103 lines
2.9 KiB
C++
#pragma once
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#include "config.hpp"
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#include "drawtypes/label.hpp"
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#include "drawtypes/progressbar.hpp"
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#include "drawtypes/ramp.hpp"
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#include "modules/meta.hpp"
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LEMONBUDDY_NS
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namespace modules {
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class backlight_module : public inotify_module<backlight_module> {
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public:
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using inotify_module::inotify_module;
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void setup() {
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// Load configuration values
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auto card = m_conf.get<string>(name(), "card");
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// Add formats and elements
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m_formatter->add(DEFAULT_FORMAT, TAG_LABEL, {TAG_LABEL, TAG_BAR, TAG_RAMP});
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if (m_formatter->has(TAG_LABEL))
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m_label = get_optional_config_label(m_conf, name(), TAG_LABEL, "%percentage%");
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if (m_formatter->has(TAG_BAR))
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m_progressbar = get_config_bar(m_bar, m_conf, name(), TAG_BAR);
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if (m_formatter->has(TAG_RAMP))
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m_ramp = get_config_ramp(m_conf, name(), TAG_RAMP);
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if (m_label)
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m_tokenized = m_label->clone();
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// Build path to the file where the current/maximum brightness value is located
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m_path_val = string_util::replace(PATH_BACKLIGHT_VAL, "%card%", card);
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m_path_max = string_util::replace(PATH_BACKLIGHT_MAX, "%card%", card);
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if (!file_util::exists(m_path_val))
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throw module_error("backlight_module: The file '" + m_path_val + "' does not exist");
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if (!file_util::exists(m_path_max))
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throw module_error("backlight_module: The file '" + m_path_max + "' does not exist");
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// Add inotify watch
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watch(string_util::replace(PATH_BACKLIGHT_VAL, "%card%", card));
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}
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bool on_event(inotify_event* event) {
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if (event != nullptr)
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m_log.trace("%s: %s", name(), event->filename);
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auto val = file_util::get_contents(m_path_val);
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m_val = std::stoull(val.c_str(), 0, 10);
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auto max = file_util::get_contents(m_path_max);
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m_max = std::stoull(max.c_str(), 0, 10);
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m_percentage = static_cast<int>(float(m_val) / float(m_max) * 100.0f + 0.5f);
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if (!m_label)
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return true;
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m_tokenized->m_text = m_label->m_text;
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m_tokenized->replace_token("%percentage%", to_string(m_percentage) + "%");
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return true;
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}
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bool build(builder* builder, string tag) {
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if (tag == TAG_BAR)
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builder->node(m_progressbar->output(m_percentage));
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else if (tag == TAG_RAMP)
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builder->node(m_ramp->get_by_percentage(m_percentage));
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else if (tag == TAG_LABEL)
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builder->node(m_tokenized);
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else
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return false;
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return true;
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}
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void idle() {
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this_thread::sleep_for(75ms);
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}
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private:
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static constexpr auto TAG_LABEL = "<label>";
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static constexpr auto TAG_BAR = "<bar>";
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static constexpr auto TAG_RAMP = "<ramp>";
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ramp_t m_ramp;
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label_t m_label;
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label_t m_tokenized;
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progressbar_t m_progressbar;
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string m_path_val;
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string m_path_max;
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float m_val = 0;
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float m_max = 0;
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int m_percentage;
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};
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}
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LEMONBUDDY_NS_END
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