100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
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/*
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* Copyright (c) 2008-2010 Travis Geiselbrecht
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in 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,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/**
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* @addtogroup graphics
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* @{
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*/
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/**
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* @file
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* @brief Console text display
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*
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* This module displays text on the console. The text is retained so that
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* it can be redisplayed if the display is cleared.
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*
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* Output is to the default graphics display
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*/
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#include <debug.h>
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#include <list.h>
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#include <stdlib.h>
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#include <string.h>
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#include <dev/display.h>
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#include <lib/gfx.h>
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#include <lib/font.h>
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#include <lib/text.h>
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#define TEXT_COLOR 0xffffffff
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static struct list_node text_list = LIST_INITIAL_VALUE(text_list);
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struct text_line {
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struct list_node node;
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const char *str;
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int x, y;
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};
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/**
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* @brief Add a string to the console text
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*/
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void text_draw(int x, int y, const char *string)
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{
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struct text_line *line = malloc(sizeof(struct text_line));
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line->str = strdup(string);
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line->x = x;
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line->y = y;
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list_add_head(&text_list, &line->node);
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text_update();
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}
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/**
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* @brief Refresh the display
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*/
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void text_update(void)
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{
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struct display_info info;
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display_get_info(&info);
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/* get the display's surface */
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gfx_surface *surface = gfx_create_surface_from_display(&info);
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struct text_line *line;
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list_for_every_entry(&text_list, line, struct text_line, node) {
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const char *c;
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int x = line->x;
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for (c = line->str; *c; c++) {
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font_draw_char(surface, *c, x, line->y, TEXT_COLOR);
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x += FONT_X;
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}
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}
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gfx_flush(surface);
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gfx_surface_destroy(surface);
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}
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