Home | History | Annotate | Download | only in f54test 
      1 /*
      2  * Copyright (C) 2014 Satoshi Noguchi
      3  * Copyright (C) 2014 Synaptics Inc
      4  *
      5  * Licensed under the Apache License, Version 2.0 (the "License");
      6  * you may not use this file except in compliance with the License.
      7  * You may obtain a copy of the License at
      8  *
      9  *      http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  * Unless required by applicable law or agreed to in writing, software
     12  * distributed under the License is distributed on an "AS IS" BASIS,
     13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  * See the License for the specific language governing permissions and
     15  * limitations under the License.
     16  */
     17 
     18 #include <stdio.h>
     19 #include <sys/ioctl.h>
     20 #include <termios.h>
     21 #include <unistd.h>
     22 #include <string.h>
     23 
     24 #include "display.h"
     25 
     26 #define ESC 0x1B
     27 
     28 // default display
     29 void Display::Output(const char * buf)
     30 {
     31 	printf("%s", buf);
     32 }
     33 
     34 // ansi console
     35 AnsiConsole::AnsiConsole() : Display()
     36 {
     37 	m_buf = NULL;
     38 	GetWindowSize();
     39 	m_curX = 0;
     40 	m_curY = 0;
     41 	m_maxCurX = 0;
     42 	m_maxCurY = 0;
     43 }
     44 
     45 AnsiConsole::~AnsiConsole()
     46 {
     47 	delete [] m_buf;
     48 }
     49 
     50 void AnsiConsole::GetWindowSize()
     51 {
     52 	struct winsize winsz;
     53 	ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsz);
     54 	if (m_numRows != winsz.ws_row || m_numCols != winsz.ws_col)
     55 	{
     56 		m_numRows = winsz.ws_row;
     57 		m_numCols = winsz.ws_col;
     58 		if (m_buf != NULL)
     59 		{
     60 			delete [] m_buf;
     61 		}
     62 		m_buf = new char[m_numRows * m_numCols];
     63 
     64 		Clear();
     65 	}
     66 }
     67 
     68 void AnsiConsole::Output(const char * buf)
     69 {
     70 	char * p;
     71 
     72 	while (m_curY < m_numRows &&
     73 		m_numCols * m_curY + m_curX < m_numRows * m_numCols)
     74 	{
     75 		p = &(m_buf[m_numCols * m_curY + m_curX]);
     76 
     77 		if (*buf == '\0')
     78 		{
     79 			break;
     80 		}
     81 		else if (*buf == '\n')
     82 		{
     83 			memset(p, ' ', m_numCols - m_curX);
     84 			m_curX = 0;
     85 			m_curY++;
     86 		}
     87 		else if (m_curX < m_numCols)
     88 		{
     89 			*p = *buf;
     90 			m_curX++;
     91 		}
     92 		buf++;
     93 
     94 		if (m_maxCurX < m_curX) m_maxCurX = m_curX;
     95 		if (m_maxCurY < m_curY) m_maxCurY = m_curY;
     96 	}
     97 }
     98 
     99 void AnsiConsole::Clear()
    100 {
    101 	printf("%c[2J", ESC);
    102 }
    103 
    104 void AnsiConsole::Reflesh()
    105 {
    106 	int i;
    107 	int j;
    108 	char * p;
    109 
    110 	printf("%c[%d;%dH", ESC, 0, 0);
    111 
    112 	for (j = 0; j < m_maxCurY; j++)
    113 	{
    114 		p = &(m_buf[m_numCols * j]);
    115 
    116 		for (i = 0; i < m_maxCurX; i++)
    117 		{
    118 			putc(*p, stdout);
    119 			p++;
    120 		}
    121 
    122 		putc('\n', stdout);
    123 	}
    124 
    125 	GetWindowSize();
    126 	m_curX = 0;
    127 	m_curY = 0;
    128 	m_maxCurX = 0;
    129 	m_maxCurY = 0;
    130 }
    131