diff options
Diffstat (limited to 'keyboards/nullbitsco/snap/keymaps/typehud/typehud.c')
| -rw-r--r-- | keyboards/nullbitsco/snap/keymaps/typehud/typehud.c | 349 |
1 files changed, 349 insertions, 0 deletions
diff --git a/keyboards/nullbitsco/snap/keymaps/typehud/typehud.c b/keyboards/nullbitsco/snap/keymaps/typehud/typehud.c new file mode 100644 index 0000000000..ad884f843b --- /dev/null +++ b/keyboards/nullbitsco/snap/keymaps/typehud/typehud.c @@ -0,0 +1,349 @@ +/* Copyright 2023 Jay Greco + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "typehud.h" + +static bool is_initialized; +static uint16_t timer; +static int8_t bar_height; +static uint8_t wpm_arr[_GRAPH_WIDTH]; +static uint8_t point_arr[_GRAPH_WIDTH]; + + +static void + render_graph(uint8_t wpm), + render_caret(void), + render_axis(void), + render_bar(void), + render_init(void); + +/* + * Renders the wpm counter. + */ +static void render_wpm(uint8_t wpm) { + oled_set_cursor(0, 0); + oled_write("WPM", false); + oled_set_cursor(0, 1); + oled_write(get_u8_str(wpm, '0'), false); +} + +/* + * Renders the keyboard matrix. + */ +static void render_matrix(keyrecord_t *record) { + uint8_t x = _MATRIX_X; + uint8_t y = _MATRIX_Y; + uint8_t width = _MATRIX_WIDTH; + uint8_t height = _MATRIX_HEIGHT; +#ifdef SPLIT_KEYBOARD + uint8_t rows = _NML_MATRIX_ROWS; + uint8_t cols = _NML_MATRIX_COLS; +#endif + + // On initial render draw the matrix outline + if (!is_initialized) { + for (uint8_t i = 1; i <= width - 2; i++) { + oled_write_pixel(x + i, y, true); + oled_write_pixel(x + i, y + height - 1, true); + } + for (uint8_t j = 1; j <= height - 2; j++) { + oled_write_pixel(x, y + j, true); + oled_write_pixel(x + width - 1, y + j, true); + } + return; + } + + // Determine position based on matrix rotation + // For split keyboards the keys on the right half get appended as additional rows and + // have their columns reset at 0 +#ifdef SPLIT_KEYBOARD + uint8_t row = (record->event.key.row % rows); + uint8_t col = record->event.key.col; + if (record->event.key.row >= rows) { + col += (cols / 2); + } +#else + uint8_t row = record->event.key.row; + uint8_t col = record->event.key.col; +#endif + +#ifdef TYPEHUD_MATRIX_ROW_SHIFT + row += TYPEHUD_MATRIX_ROW_SHIFT; +#endif +#ifdef TYPEHUD_MATRIX_COL_SHIFT + col += TYPEHUD_MATRIX_COL_SHIFT; +#endif + + // Scale position to key size + uint8_t size = _MATRIX_SIZE; + row *= size; + col *= size; + + // Render key in matrix + for (int i = 0; i < size; i++) { + for (int j = 0; j < size; j++) { +#if defined(TYPEHUD_MATRIX_ROTATE_90) + uint8_t key_x = x + width - 1 - size - row; + uint8_t key_y = y + 1 + col; +#elif defined(TYPEHUD_MATRIX_ROTATE_180) + uint8_t key_x = x + width - 1 - size - col; + uint8_t key_y = y + height - 1 - size - row; +#elif defined(TYPEHUD_MATRIX_ROTATE_270) + uint8_t key_x = x + 1 + row; + uint8_t key_y = y + height - 1 - size - col; +#else + uint8_t key_x = x + 1 + col; + uint8_t key_y = y + 1 + row; +#endif + oled_write_pixel(key_x + i, key_y + j, record->event.pressed); + } + } +} + +/* + * Renders the graph. + */ +static void render_graph(uint8_t wpm) { + uint8_t x = _GRAPH_X; + uint8_t y = _GRAPH_Y + _GRAPH_HEIGHT; + uint8_t width = _GRAPH_WIDTH; + uint8_t height = _GRAPH_HEIGHT; + + // Handle intial graph render + if (!is_initialized) { + for (uint8_t i = 0; i < width; i++) { + oled_write_pixel(x + i, y, true); + } + return; + } + + uint8_t i = 0; + + // Shift all graph points except last to the left and re-render + for (; i < width - 1; i++) { + int8_t point_delta = point_arr[i + 1] - point_arr[i]; + +#ifdef TYPEHUD_FILLGRAPH + if (point_delta < 0) { +#else + if (point_delta != 0) { +#endif + oled_write_pixel(x + i, y - point_arr[i], false); + } + + wpm_arr[i] = wpm_arr[i + 1]; + point_arr[i] = point_arr[i + 1]; + + if (point_delta != 0) { + oled_write_pixel(x + i, y - point_arr[i], true); + } + } + + // Clear last graph point + if (wpm > wpm_arr[i] && point_arr[i] + 1 <= height) { +#ifndef TYPEHUD_FILLGRAPH + oled_write_pixel(x + i, y - point_arr[i], false); +#endif + point_arr[i] = point_arr[i] + 1; + } else if ((wpm < wpm_arr[i] && point_arr[i] - 1 >= 0) || (wpm <= 0 && point_arr[i] > 0)) { + oled_write_pixel(x + i, y - point_arr[i], false); + point_arr[i] = point_arr[i] - 1; + } + + // Render last graph point + wpm_arr[i] = wpm; + + if (point_arr[i] != point_arr[i - 1]) { + oled_write_pixel(x + i, y - point_arr[i], true); + } +} + +/* + * Renders the caret. + */ +static void render_caret(void) { + uint8_t x = _GRAPH_X + _GRAPH_WIDTH + _GRAPH_RPAD + _CARET_WIDTH; + uint8_t y = 0; + uint8_t width = _CARET_WIDTH; + uint8_t height = _CARET_HEIGHT; + uint8_t g_width = _GRAPH_WIDTH; + uint8_t g_height = _GRAPH_HEIGHT; + + // Handle initial caret render + if (!is_initialized) { + y = g_height - point_arr[g_width - 1]; + + for (uint8_t i = 0; i < width; i++) { + for (uint8_t j = i; j < height - i; j++) { + oled_write_pixel(x - i, y - j, true); + } + } + return; + } + + // Handle caret updates and re-render + int8_t point_delta = point_arr[g_width - 1] - point_arr[g_width - 2]; + if (point_delta > 0) { + y = g_height - point_arr[g_width - 2]; + if (y - height + 1 > 0) { + for (uint8_t i = 0; i < width; i++) { + oled_write_pixel(x - i, y - i, false); + oled_write_pixel(x - i, y - height + i, true); + } + } + } else if (point_delta < 0) { + y = g_height - point_arr[g_width - 1]; + if (y - height + 1 > 0) { + for (uint8_t i = 0; i < width; i++) { + oled_write_pixel(x - i, y - height + i, false); + oled_write_pixel(x - i, y - i, true); + } + } + } +} + +/* + * Renders the axis. + */ +static void render_axis(void) { + uint8_t x = _AXIS_X; + uint8_t y = _AXIS_HEIGHT; + uint8_t width = _AXIS_WIDTH; + uint8_t height = _AXIS_HEIGHT; + uint8_t tick_width = _AXIS_TICK_WIDTH; + uint8_t subtick_width = _AXIS_SUBTICK_WIDTH; + uint8_t interval = _AXIS_INTERVAL; + uint8_t tick_interval = _AXIS_TICK_INTERVAL; + + for (uint8_t j = 0; j <= height; j += interval) { + uint8_t curr_tick_width = 0; + + // Determine tick width and draw extra point if at interval + if (j % tick_interval == 0) { + curr_tick_width = tick_width; + oled_write_pixel(x, y - j, true); + } else { + curr_tick_width = subtick_width; + } + + // Draw tick + for (uint8_t i = 0; i < curr_tick_width; i++) { + oled_write_pixel(x + width - i, y - j, true); + } + } +} + +/* + * Renders the input bar. + */ +static void render_bar(void) { + uint8_t x = _BAR_X; + uint8_t width = _BAR_WIDTH; + uint8_t height = _BAR_HEIGHT; + + // Increment bar height + bar_height = (bar_height + 1) % height; + + // When bar resets back to 0, clear bar pixels + if (bar_height % height == 0) { + for (uint8_t i = 0; i < width; i++) { + for (uint8_t j = 0; j < height; j++) { + oled_write_pixel(x + i, j, false); + } + } + } + + // Draw new bar pixels + for (uint8_t i = 0; i < width; i++) { + oled_write_pixel(x + i, height - bar_height, true); + } +} + +/* + * Renders the initial frame for all components. + */ +static void render_init(void) { + render_graph(0); + render_caret(); + render_matrix(NULL); + render_axis(); +} + +/* + * Initializes and resets the typehud. + */ +void typehud_init(void) { + // Reset variables + is_initialized = false; + timer = 0; + bar_height = -1; + + for (uint8_t i = 0; i < _GRAPH_WIDTH; i++) { + wpm_arr[i] = 0; + point_arr[i] = 0; + } + + // Draw the initial graph + for (uint8_t i = 0; i < _GRAPH_WIDTH; i++) { + oled_write_pixel(_GRAPH_X + i, _GRAPH_HEIGHT, true); + } +} + +/* + * Renders the typehud. + */ +void typehud_render(void) { + uint8_t wpm = get_current_wpm(); + + // Run initial rendering once + if (!is_initialized) { + render_init(); + is_initialized = true; + } + + // Render wpm + render_wpm(wpm); + + // Render next graph and caret frame when timer reaches refresh rate + if (timer_elapsed(timer) > _GRAPH_REFRESH) { + render_graph(wpm); + render_caret(); + timer = timer_read(); + } +} + +/* + * Handles keypresses for the typehud. + */ +void typehud_process_record(keyrecord_t *record) { + // For split keyboards, only draw on correct side +#ifdef SPLIT_KEYBOARD +# ifdef TYPEHUD_MASTER + if (!is_keyboard_master()) { +# else + if (is_keyboard_master()) { +# endif + return; + } +#endif + // Render/update matrix + render_matrix(record); + + // Render/update input bar on keypress + if (record->event.pressed) { + render_bar(); + } +} |