From 86051198997c6cd09ac00321473b570875f2b9bd Mon Sep 17 00:00:00 2001 From: n3rdopolis Date: Sun, 19 Mar 2023 22:41:32 -0400 Subject: [PATCH] libply-splash-graphics: Introduce new ply-console-viewer control --- src/libply-splash-graphics/meson.build | 2 + .../ply-console-viewer.c | 232 ++++++++++++++++++ .../ply-console-viewer.h | 50 ++++ 3 files changed, 284 insertions(+) create mode 100644 src/libply-splash-graphics/ply-console-viewer.c create mode 100644 src/libply-splash-graphics/ply-console-viewer.h diff --git a/src/libply-splash-graphics/meson.build b/src/libply-splash-graphics/meson.build index 32fad963..22d1092e 100644 --- a/src/libply-splash-graphics/meson.build +++ b/src/libply-splash-graphics/meson.build @@ -1,6 +1,7 @@ libply_splash_graphics_sources = files( 'ply-animation.c', 'ply-capslock-icon.c', + 'ply-console-viewer.c', 'ply-entry.c', 'ply-image.c', 'ply-keymap-icon.c', @@ -40,6 +41,7 @@ libply_splash_graphics_dep = declare_dependency( libply_splash_graphics_headers = files( 'ply-animation.h', 'ply-capslock-icon.h', + 'ply-console-viewer.h', 'ply-entry.h', 'ply-image.h', 'ply-keymap-icon.h', diff --git a/src/libply-splash-graphics/ply-console-viewer.c b/src/libply-splash-graphics/ply-console-viewer.c new file mode 100644 index 00000000..792cb353 --- /dev/null +++ b/src/libply-splash-graphics/ply-console-viewer.c @@ -0,0 +1,232 @@ +/* ply-console-view.c - console message viewer + * + * 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, 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, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + * + */ + +#include +#include + +#include "ply-console-viewer.h" +#include "ply-label.h" +#include "ply-list.h" +#include "ply-pixel-display.h" +#include "ply-image.h" +#include "ply-kmsg-reader.h" + +#define CONSOLE_POLLS_PER_SECOND 4 + +struct _ply_console_viewer +{ + ply_event_loop_t *loop; + + ply_list_t *console_messages; + + ply_pixel_display_t *display; + ply_rectangle_t area; + + ply_list_t *message_labels; + + int is_hidden; + + char *fontdesc; + long font_height; + long font_width; + int line_max_chars; + int messages_updating; + + uint32_t text_color; +}; + +ply_console_viewer_t * +ply_console_viewer_new (ply_pixel_display_t *display, + const char *fontdesc) +{ + ply_console_viewer_t *console_viewer; + + console_viewer = calloc (1, sizeof(struct _ply_console_viewer)); + + console_viewer->messages_updating = false; + console_viewer->message_labels = ply_list_new (); + + console_viewer->fontdesc = strdup (fontdesc); + + ply_label_t *console_message_label, *measure_label; + int label_count; + + measure_label = ply_label_new (); + ply_label_set_text (measure_label, " "); + ply_label_set_font (measure_label, console_viewer->fontdesc); + + console_viewer->text_color = PLY_CONSOLE_VIEWER_LOG_TEXT_COLOR; + + console_viewer->font_height = ply_label_get_height (measure_label); + console_viewer->font_width = ply_label_get_width (measure_label); + /* Allow the label to be the size of how many characters can fit in the width of the screeen, minus one for larger fonts that have some size overhead */ + console_viewer->line_max_chars = ply_pixel_display_get_width (display) / console_viewer->font_width - 1; + label_count = ply_pixel_display_get_height (display) / console_viewer->font_height; + ply_label_free (measure_label); + + for (int label_index = 0; label_index < label_count; label_index++) { + console_message_label = ply_label_new (); + ply_label_set_font (console_message_label, console_viewer->fontdesc); + ply_list_append_data (console_viewer->message_labels, console_message_label); + } + + return console_viewer; +} + +void +ply_console_viewer_free (ply_console_viewer_t *console_viewer) +{ + ply_list_node_t *node; + ply_label_t *console_message_label; + + for (int i = 0; i < ply_list_get_length (console_viewer->message_labels); i++) { + node = ply_list_get_nth_node (console_viewer->message_labels, i); + console_message_label = ply_list_node_get_data (node); + ply_label_free (console_message_label); + } + ply_list_free (console_viewer->message_labels); + + + free (console_viewer->fontdesc); + free (console_viewer); +} + +void +ply_console_viewer_show (ply_console_viewer_t *console_viewer, + ply_pixel_display_t *display) +{ + assert (console_viewer != NULL); + + console_viewer->display = display; + console_viewer->is_hidden = false; + + ply_list_node_t *node; + ply_label_t *console_message_label; + int label_count, message_number, label_index, string_length_left, utf8_string_offset, utf8_string_range; + char *console_message; + uint32_t label_color; + + if (console_viewer->console_messages == NULL) + return; + + label_index = 0; + label_count = ply_list_get_length (console_viewer->message_labels) - 1; + message_number = ply_list_get_length (console_viewer->console_messages) - 1; + label_color = console_viewer->text_color; + while (label_index <= label_count) { + if (message_number >= 0) { + console_message = ply_list_node_get_data (ply_list_get_nth_node (console_viewer->console_messages, message_number)); + } else { + console_message = ""; + } + + string_length_left = ply_utf8_string_get_length (console_message, strlen (console_message)); + utf8_string_offset = string_length_left; + while (string_length_left >= 0) { + node = ply_list_get_nth_node (console_viewer->message_labels, label_index); + console_message_label = ply_list_node_get_data (node); + + utf8_string_range = utf8_string_offset % console_viewer->line_max_chars; + if (utf8_string_range == 0) + utf8_string_range = console_viewer->line_max_chars; + + utf8_string_offset -= utf8_string_range; + string_length_left = utf8_string_offset - 1; + + /* prevent underrun */ + if (utf8_string_offset < 0) + utf8_string_offset = 0; + + ply_label_set_text (console_message_label, + ply_utf8_string_get_substring (console_message, utf8_string_offset, utf8_string_range)); + ply_label_show (console_message_label, console_viewer->display, console_viewer->font_width / 2, + (ply_pixel_display_get_height (console_viewer->display) - (console_viewer->font_height * label_index) - console_viewer->font_height)); + ply_label_set_hex_color (console_message_label, label_color); + + label_index++; + if (label_index > label_count) + break; + + utf8_string_offset--; + } + message_number--; + if (message_number < 0) + break; + } +} + +void +ply_console_viewer_draw_area (ply_console_viewer_t *console_viewer, + ply_pixel_buffer_t *buffer, + long x, + long y, + unsigned long width, + unsigned long height) +{ + ply_list_node_t *node; + ply_label_t *console_message_label; + + if (console_viewer->messages_updating == false) { + console_viewer->messages_updating = true; + + for (int label_index = 0; label_index < ply_list_get_length (console_viewer->message_labels); label_index++) { + node = ply_list_get_nth_node (console_viewer->message_labels, label_index); + console_message_label = ply_list_node_get_data (node); + ply_label_draw_area (console_message_label, buffer, x, y, width, height); + } + console_viewer->messages_updating = false; + } +} + +void +ply_console_viewer_hide (ply_console_viewer_t *console_viewer) +{ + int label_count = ply_list_get_length (console_viewer->message_labels); + ply_list_node_t *node; + ply_label_t *console_message_label; + + if (console_viewer->is_hidden == true) + return; + + console_viewer->is_hidden = true; + + console_viewer->messages_updating = true; + + for (int label_index = 0; label_index < label_count; label_index++) { + node = ply_list_get_nth_node (console_viewer->message_labels, label_index); console_message_label = ply_list_node_get_data (node); + ply_label_hide (console_message_label); + } + console_viewer->messages_updating = false; + + console_viewer->display = NULL; +} + +void +ply_console_viewer_attach_console_messages (ply_console_viewer_t *console_viewer, + ply_list_t *console_messages) +{ + console_viewer->console_messages = console_messages; +} + +void +ply_console_viewer_set_text_color (ply_console_viewer_t *console_viewer, + uint32_t hex_color) +{ + console_viewer->text_color = hex_color; +} diff --git a/src/libply-splash-graphics/ply-console-viewer.h b/src/libply-splash-graphics/ply-console-viewer.h new file mode 100644 index 00000000..89c0d5c9 --- /dev/null +++ b/src/libply-splash-graphics/ply-console-viewer.h @@ -0,0 +1,50 @@ +/* ply-console-viewer.h - console message viewer + * + * 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, 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, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + * + */ +#ifndef PLY_CONSOLE_VIEWER_H +#define PLY_CONSOLE_VIEWER_H + +#include "ply-key-file.h" +#include "ply-list.h" +#include "ply-event-loop.h" +#include "ply-pixel-display.h" + +typedef struct _ply_console_viewer ply_console_viewer_t; + +#define PLY_CONSOLE_VIEWER_LOG_TEXT_COLOR 0xffffffff /* white */ + +#ifndef PLY_HIDE_FUNCTION_DECLARATIONS +ply_console_viewer_t *ply_console_viewer_new (ply_pixel_display_t *display, + const char *fontdesc); +void ply_console_viewer_free (ply_console_viewer_t *console_viewer); +void ply_console_viewer_show (ply_console_viewer_t *console_viewer, + ply_pixel_display_t *display); +void ply_console_viewer_draw_area (ply_console_viewer_t *console_viewer, + ply_pixel_buffer_t *buffer, + long x, + long y, + unsigned long width, + unsigned long height); +void ply_console_viewer_hide (ply_console_viewer_t *console_viewer); +void ply_console_viewer_attach_console_messages (ply_console_viewer_t *console_viewer, + ply_list_t *console_messages); +void ply_console_viewer_set_text_color (ply_console_viewer_t *console_viewer, + uint32_t hex_color); +#endif //PLY_HIDE_FUNCTION_DECLARATIONS + +#endif //PLY_CONSOLE_VIEWER_H -- 2.47.3