192 lines
6.6 KiB
C++
192 lines
6.6 KiB
C++
/*
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* Copyright (C) 2019 Max Regan
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <algorithm>
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#include <cmath>
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#include "Application/Screens/AnalogTimeScreen.h"
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#include "Application/SystemFonts.h"
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#include "Bsp/Drivers/RtcDriver.h"
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#include "Bsp/SystemTime.h"
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#include "Bsp/Drivers/LowPower.h"
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using BSP::ReturnCode;
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using BSP::Time;
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using BSP::Schedule::NextTime;
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using Color = BSP::DisplayDriver::Color;
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// TODO: remove all calls to std::cos and std::sin?
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AnalogTimeScreen::AnalogTimeScreen(BSP::DisplayDriver &driver,
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ScreenManager &manager,
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Screen &menu_screen)
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: m_driver(driver)
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, m_last_time()
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, m_manager(manager)
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, m_menu_screen(menu_screen)
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, m_display_seconds(true)
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{}
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ReturnCode AnalogTimeScreen::init()
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{
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return ReturnCode::OK;
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}
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void AnalogTimeScreen::draw_ticks() {
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// After profiling, using lookup tables is 6-10% faster than using std::sin & std::cos.
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static constexpr float sin_tbl[8] = {
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0.0,
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0.10452539173303049,
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0.20790564888802265,
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0.30900818248165035,
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0.4067253572759511,
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0.4999866265466325,
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0.5877702605258084,
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0.6691145400274635,
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};
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static constexpr float cos_tbl[8] = {
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1.0,
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0.9945222181947755,
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0.9781488849661131,
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0.9510593794077146,
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0.9135504823209005,
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0.8660331248136633,
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0.8090278863187741,
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0.7431592913526923,
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};
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const uint32_t y_center = m_driver.get_height() / 2;
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const uint32_t x_center = m_driver.get_width() / 2;
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const uint32_t radius = std::min(m_driver.get_width(), m_driver.get_height()) / 2;
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// This only works for square screens, but saves a a bunch of float math and calls to trig functions
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for (int i = 0; i < 8; i++) {
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const uint32_t len = (i % 5 == 0) ? 10 : 5;
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const uint32_t width = (i % 5 == 0) ? 3 : 1;
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const uint32_t end1_offset = sin_tbl[i] * radius;
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const uint32_t end2_offset = cos_tbl[i] * radius;
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const uint32_t start1_offset = sin_tbl[i] * (radius - len);
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const uint32_t start2_offset = cos_tbl[i] * (radius - len);
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m_driver.draw_line(x_center + start1_offset, y_center + start2_offset,
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x_center + end1_offset, y_center + end2_offset,
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Color::BLACK, width);
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m_driver.draw_line(x_center - start1_offset, y_center + start2_offset,
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x_center - end1_offset, y_center + end2_offset,
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Color::BLACK, width);
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m_driver.draw_line(x_center + start1_offset, y_center - start2_offset,
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x_center + end1_offset, y_center - end2_offset,
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Color::BLACK, width);
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m_driver.draw_line(x_center - start1_offset, y_center - start2_offset,
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x_center - end1_offset, y_center - end2_offset,
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Color::BLACK, width);
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m_driver.draw_line(x_center + start2_offset, y_center + start1_offset,
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x_center + end2_offset, y_center + end1_offset,
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Color::BLACK, width);
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m_driver.draw_line(x_center - start2_offset, y_center + start1_offset,
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x_center - end2_offset, y_center + end1_offset,
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Color::BLACK, width);
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m_driver.draw_line(x_center + start2_offset, y_center - start1_offset,
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x_center + end2_offset, y_center - end1_offset,
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Color::BLACK, width);
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m_driver.draw_line(x_center - start2_offset, y_center - start1_offset,
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x_center - end2_offset, y_center - end1_offset,
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Color::BLACK, width);
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}
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}
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void AnalogTimeScreen::draw_hand(uint32_t ticks, uint32_t len, int32_t width, Color color) {
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const uint32_t y_center = m_driver.get_height() / 2;
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const uint32_t x_center = m_driver.get_width() / 2;
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uint32_t x_end = x_center + std::sin(ticks * TURNS_PER_TICK) * len;
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uint32_t y_end = y_center - std::cos(ticks * TURNS_PER_TICK) * len;
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m_driver.draw_line(x_center, y_center, x_end, y_end, color, width);
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}
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void AnalogTimeScreen::display_time()
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{
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BSP::WallClockTime time;
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BSP::RtcDriver::get_time(time);
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m_driver.clear(Color::WHITE);
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draw_ticks();
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const uint32_t seconds_len = std::min(m_driver.get_width(), m_driver.get_height()) * 9 / 20;
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const uint32_t minutes_len = std::min(m_driver.get_width(), m_driver.get_height()) * 17 / 40;
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const uint32_t hours_len = std::min(m_driver.get_width(), m_driver.get_height()) * 6 / 20;
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draw_hand(time.get_hours_12() * 5, hours_len, 3, Color::BLACK);
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draw_hand(time.get_minutes(), minutes_len, 3, Color::BLACK);
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if (m_display_seconds) {
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draw_hand(time.get_seconds(), seconds_len, 2, Color::RED);
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}
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m_last_time = time;
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m_driver.refresh();
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}
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NextTime AnalogTimeScreen::execute()
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{
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display_time();
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BSP::time_t now;
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BSP::SystemTimer::get_time(now);
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if (m_display_seconds) {
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return NextTime::in(Time::seconds(1));
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} else {
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BSP::WallClockTime wall_time;
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BSP::RtcDriver::get_time(wall_time);
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return NextTime::in(Time::seconds(61 - wall_time.get_seconds()));
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}
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}
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void AnalogTimeScreen::enable() {
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m_last_time = {};
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display_time();
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}
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void AnalogTimeScreen::disable() {
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}
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void AnalogTimeScreen::notify_up_button() {
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/* TODO: This should open a menu first */
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m_manager.push_screen(m_menu_screen);
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}
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void AnalogTimeScreen::notify_middle_button() {
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}
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void AnalogTimeScreen::notify_down_button() {
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}
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