--- /dev/null
+/* 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 <stdlib.h>
+#include <assert.h>
+
+#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;
+}
--- /dev/null
+/* 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
projects / thirdparty / plymouth.git / commitdiff
