--- /dev/null
+/* ply-text-display.c - APIs for displaying text
+ *
+ * Copyright (C) 2009 Red Hat, Inc.
+ *
+ * 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.
+ *
+ * Written by: Ray Strode <rstrode@redhat.com>
+ */
+#include "config.h"
+#include "ply-text-display.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <wchar.h>
+
+#include "ply-buffer.h"
+#include "ply-console.h"
+#include "ply-event-loop.h"
+#include "ply-list.h"
+#include "ply-logger.h"
+#include "ply-terminal.h"
+#include "ply-utils.h"
+
+#ifndef CLEAR_SCREEN_SEQUENCE
+#define CLEAR_SCREEN_SEQUENCE "\033[2J"
+#endif
+
+#ifndef CLEAR_LINE_SEQUENCE
+#define CLEAR_LINE_SEQUENCE "\033[2K\r\n"
+#endif
+
+#ifndef BACKSPACE
+#define BACKSPACE "\b\033[0K"
+#endif
+
+#ifndef MOVE_CURSOR_SEQUENCE
+#define MOVE_CURSOR_SEQUENCE "\033[%d;%df"
+#endif
+
+#ifndef HIDE_CURSOR_SEQUENCE
+#define HIDE_CURSOR_SEQUENCE "\033[?25l"
+#endif
+
+#ifndef SHOW_CURSOR_SEQUENCE
+#define SHOW_CURSOR_SEQUENCE "\033[?25h"
+#endif
+
+#ifndef COLOR_SEQUENCE_FORMAT
+#define COLOR_SEQUENCE_FORMAT "\033[%dm"
+#endif
+
+#ifndef PAUSE_SEQUENCE
+#define PAUSE_SEQUENCE "\023"
+#endif
+
+#ifndef UNPAUSE_SEQUENCE
+#define UNPAUSE_SEQUENCE "\021"
+#endif
+
+#ifndef FOREGROUND_COLOR_BASE
+#define FOREGROUND_COLOR_BASE 30
+#endif
+
+#ifndef BACKGROUND_COLOR_BASE
+#define BACKGROUND_COLOR_BASE 40
+#endif
+
+#ifndef TEXT_PALETTE_SIZE
+#define TEXT_PALETTE_SIZE 48
+#endif
+
+struct _ply_text_display
+{
+ ply_event_loop_t *loop;
+
+ ply_terminal_t *terminal;
+ ply_console_t *console;
+
+ ply_terminal_color_t foreground_color;
+ ply_terminal_color_t background_color;
+
+ ply_text_display_draw_handler_t draw_handler;
+ void *draw_handler_user_data;
+};
+
+ply_text_display_t *
+ply_text_display_new (ply_terminal_t *terminal,
+ ply_console_t *console)
+{
+ ply_text_display_t *display;
+
+ display = calloc (1, sizeof (ply_text_display_t));
+
+ display->loop = NULL;
+ display->terminal = terminal;
+ display->console = console;
+
+ return display;
+}
+
+int
+ply_text_display_get_number_of_columns (ply_text_display_t *display)
+{
+ return ply_terminal_get_number_of_columns (display->terminal);
+}
+
+int
+ply_text_display_get_number_of_rows (ply_text_display_t *display)
+{
+ return ply_terminal_get_number_of_rows (display->terminal);
+}
+
+void
+ply_text_display_set_cursor_position (ply_text_display_t *display,
+ int column,
+ int row)
+{
+ int number_of_columns;
+ int number_of_rows;
+
+ number_of_columns = ply_text_display_get_number_of_columns (display);
+ number_of_rows = ply_text_display_get_number_of_rows (display);
+
+ column = CLAMP (column, 0, number_of_columns - 1);
+ row = CLAMP (row, 0, number_of_rows - 1);
+
+ ply_terminal_write (display->terminal,
+ MOVE_CURSOR_SEQUENCE,
+ row, column);
+}
+
+void
+ply_text_display_clear_screen (ply_text_display_t *display)
+{
+ if (ply_is_tracing ())
+ return;
+
+ ply_terminal_write (display->terminal,
+ CLEAR_SCREEN_SEQUENCE);
+
+ ply_text_display_set_cursor_position (display, 0, 0);
+}
+
+void
+ply_text_display_clear_line (ply_text_display_t *display)
+{
+
+ ply_terminal_write (display->terminal,
+ CLEAR_LINE_SEQUENCE);
+}
+
+void
+ply_text_display_remove_character (ply_text_display_t *display)
+{
+ ply_terminal_write (display->terminal,
+ BACKSPACE);
+}
+
+void
+ply_text_display_set_background_color (ply_text_display_t *display,
+ ply_terminal_color_t color)
+{
+
+ ply_terminal_write (display->terminal,
+ COLOR_SEQUENCE_FORMAT,
+ BACKGROUND_COLOR_BASE + color);
+
+ display->background_color = color;
+}
+
+void
+ply_text_display_set_foreground_color (ply_text_display_t *display,
+ ply_terminal_color_t color)
+{
+ ply_terminal_write (display->terminal,
+ COLOR_SEQUENCE_FORMAT,
+ FOREGROUND_COLOR_BASE + color);
+
+ display->foreground_color = color;
+}
+
+ply_terminal_color_t
+ply_text_display_get_background_color (ply_text_display_t *display)
+{
+ return display->background_color;
+}
+
+ply_terminal_color_t
+ply_text_display_get_foreground_color (ply_text_display_t *display)
+{
+ return display->foreground_color;
+}
+
+void
+ply_text_display_draw_area (ply_text_display_t *display,
+ int x,
+ int y,
+ int width,
+ int height)
+{
+ if (display->draw_handler != NULL)
+ display->draw_handler (display->draw_handler_user_data,
+ display->terminal,
+ x, y, width, height);
+}
+
+void
+ply_text_display_hide_cursor (ply_text_display_t *display)
+{
+ ply_terminal_write (display->terminal,
+ HIDE_CURSOR_SEQUENCE);
+}
+
+void
+ply_text_display_write (ply_text_display_t *display,
+ const char *format,
+ ...)
+{
+ int fd;
+
+ va_list args;
+ char *string;
+
+ assert (display != NULL);
+ assert (format != NULL);
+
+ fd = ply_terminal_get_fd (display->terminal);
+
+ string = NULL;
+ va_start (args, format);
+ vasprintf (&string, format, args);
+ va_end (args);
+
+ if (ply_terminal_get_vt_number (display->terminal) > 0)
+ ply_console_set_mode (display->console, PLY_CONSOLE_MODE_TEXT);
+ write (fd, string, strlen (string));
+ free (string);
+}
+
+void
+ply_text_display_show_cursor (ply_text_display_t *display)
+{
+ ply_terminal_write (display->terminal,
+ SHOW_CURSOR_SEQUENCE);
+}
+
+bool
+ply_text_display_supports_color (ply_text_display_t *display)
+{
+ return ply_terminal_supports_color (display->terminal);
+}
+
+static void
+ply_text_display_detach_from_event_loop (ply_text_display_t *display)
+{
+ assert (display != NULL);
+ display->loop = NULL;
+}
+
+void
+ply_text_display_free (ply_text_display_t *display)
+{
+ if (display == NULL)
+ return;
+
+ if (display->loop != NULL)
+ ply_event_loop_stop_watching_for_exit (display->loop,
+ (ply_event_loop_exit_handler_t)
+ ply_text_display_detach_from_event_loop,
+ display);
+
+ free (display);
+}
+
+void
+ply_text_display_set_draw_handler (ply_text_display_t *display,
+ ply_text_display_draw_handler_t draw_handler,
+ void *user_data)
+{
+ assert (display != NULL);
+
+ display->draw_handler = draw_handler;
+ display->draw_handler_user_data = user_data;
+}
+
+void
+ply_text_display_pause_updates (ply_text_display_t *display)
+{
+ ply_terminal_write (display->terminal,
+ PAUSE_SEQUENCE);
+}
+
+void
+ply_text_display_unpause_updates (ply_text_display_t *display)
+{
+ ply_terminal_write (display->terminal,
+ UNPAUSE_SEQUENCE);
+}
+
+void
+ply_text_display_attach_to_event_loop (ply_text_display_t *display,
+ ply_event_loop_t *loop)
+{
+ assert (display != NULL);
+ assert (loop != NULL);
+ assert (display->loop == NULL);
+
+ display->loop = loop;
+
+ ply_event_loop_watch_for_exit (loop, (ply_event_loop_exit_handler_t)
+ ply_text_display_detach_from_event_loop,
+ display);
+}
+
+ply_terminal_t *
+ply_text_display_get_terminal (ply_text_display_t *display)
+{
+ return display->terminal;
+}
+
+/* vim: set ts= 4 sw= 4 et ai ci cino= {.5s,^-2,+.5s,t0,g0,e-2,n-2,p2s,(0,=.5s,:.5s */
--- /dev/null
+/* ply-text-display.h - APIs for displaying text
+ *
+ * Copyright (C) 2009 Red Hat, Inc.
+ *
+ * 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.
+ *
+ * Written By: Ray Strode <rstrode@redhat.com>
+ */
+#ifndef PLY_TEXT_DISPLAY_H
+#define PLY_TEXT_DISPLAY_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#include "ply-buffer.h"
+#include "ply-console.h"
+#include "ply-event-loop.h"
+#include "ply-terminal.h"
+
+typedef struct _ply_text_display ply_text_display_t;
+
+typedef void (* ply_text_display_draw_handler_t) (void *user_data,
+ ply_terminal_t *terminal,
+ int column,
+ int row,
+ int number_of_columns,
+ int number_of_rows);
+
+#ifndef PLY_HIDE_FUNCTION_DECLARATIONS
+ply_text_display_t *ply_text_display_new (ply_terminal_t *terminal,
+ ply_console_t *console);
+
+void ply_text_display_free (ply_text_display_t *display);
+
+void ply_text_display_attach_to_event_loop (ply_text_display_t *display,
+ ply_event_loop_t *loop);
+
+ply_terminal_t *ply_text_display_get_terminal (ply_text_display_t *display);
+
+int ply_text_display_get_number_of_rows (ply_text_display_t *display);
+int ply_text_display_get_number_of_columns (ply_text_display_t *display);
+void ply_text_display_set_cursor_position (ply_text_display_t *display,
+ int column,
+ int row);
+__attribute__((__format__ (__printf__, 2, 3)))
+void ply_text_display_write (ply_text_display_t *display,
+ const char *format,
+ ...);
+void ply_text_display_hide_cursor (ply_text_display_t *display);
+void ply_text_display_show_cursor (ply_text_display_t *display);
+void ply_text_display_clear_screen (ply_text_display_t *display);
+void ply_text_display_clear_line (ply_text_display_t *display);
+void ply_text_display_remove_character (ply_text_display_t *display);
+bool ply_text_display_supports_color (ply_text_display_t *display);
+void ply_text_display_set_background_color (ply_text_display_t *display,
+ ply_terminal_color_t color);
+void ply_text_display_set_foreground_color (ply_text_display_t *display,
+ ply_terminal_color_t color);
+ply_terminal_color_t ply_text_display_get_background_color (ply_text_display_t *display);
+ply_terminal_color_t ply_text_display_get_foreground_color (ply_text_display_t *display);
+
+void ply_text_display_draw_area (ply_text_display_t *display,
+ int column,
+ int row,
+ int number_of_columns,
+ int number_of_rows);
+
+void ply_text_display_set_draw_handler (ply_text_display_t *display,
+ ply_text_display_draw_handler_t draw_handler,
+ void *user_data);
+void ply_text_display_pause_updates (ply_text_display_t *display);
+void ply_text_display_unpause_updates (ply_text_display_t *display);
+
+#endif
+
+#endif /* PLY_TEXT_DISPLAY_H */
+/* vim: set ts=4 sw=4 et ai ci cino={.5s,^-2,+.5s,t0,g0,e-2,n-2,p2s,(0,=.5s,:.5s */
projects / thirdparty / plymouth.git / commitdiff
