1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153
| #include "stdafx.h"
#define _ _STDC_WANT_SECURE_LIB_ _ 1
#include <iostream>
#include <stdlib.h>
#include <string>
#include <assert.h>
using namespace std;
class Screen {
public :
Screen(int = 8, int = 40, char = '#');
inline int remainingSpace();
inline int row();
int isEqual(Screen&);
inline Screen& down();
inline Screen& forward();
inline Screen& move(int, int);
Screen& home(){move (1, 1); return *this;}
Screen& checkRange(int, int);
Screen& copy(Screen&);
Screen& display();
Screen& lineX(int, int, int, char);
Screen& reSize(int, int, char);
Screen& set(char);
Screen& set(char*);
private :
short height, width;
char *cursor, *screen;
};
Screen::Screen(int high, int wid, char bkground){
int sz = high * wid;
height = high;
width = wid;
cursor = screen = new char[sz + 1];
assert (cursor !=0);
char *ptr = screen;
char *endptr = screen + sz;
while (ptr != endptr) *ptr++ = bkground;
*ptr = '\0';
}
inline int Screen::remainingSpace(){
int sz = width*height;
return (screen + sz - cursor - 1);
}
inline int Screen::row(){
int pos = cursor - screen + 1;
return (pos + width - 1) / width;
}
int Screen::isEqual(Screen &s){
if(width != s.width || height != s.height)
return 0;
char *p = screen;
char *q = s.screen;
if (p == q) return 1;
while (*p && *p++ == *q++);
if (*p)
return 0;
return 1;
}
inline Screen& Screen::down(){
const char BELL = '\007';
if (row() == height)
std::cout.put (BELL);
else
cursor += width;
return *this;
}
inline Screen& Screen::forward(){
++cursor;
if (*cursor == '\0')
home ();
return *this;
}
inline Screen& Screen::move(int r, int c){
checkRange (r, c);
int row = (r-1)*width;
cursor = screen + row + c - 1;
return *this;
}
Screen& Screen::checkRange (int row, int col){
if (row < 1 || row > height ||col < 1 || col > width){
std::cerr<< "Screen coordinates ( "<<row<<", "<<col<<" ) out of bounds."<<endl;
exit (-1);
}
return *this;
}
Screen& Screen::copy(Screen &s){//FONCTION COPY
delete screen;
height = s.height;
width = s.width;
screen = cursor = new char[ height * width + 1];
assert (screen != 0);
strcpy_s (screen, sizeof(s.screen), s.screen);
return *this;
}
Screen& Screen::display(){
for(int ix = 0; ix <height; ix++){
std::cout<<endl;
int offset = width * ix;
for (int j = 0; j<width; j++){
char*p = screen + offset + j;
std::cout.put(*p);
}
}
return *this;
}
Screen& Screen::lineX(int row, int col, int len, char ch){
move (row, col);
for(int ix = 0; ix<len; ix++)
set(ch).forward();
return *this;
}
Screen& Screen::reSize(int h, int w, char bkground){
Screen *ps = new Screen (h, w, bkground);
assert (ps !=0);
char *pNew = ps->screen;
if (screen){
char *pOld = screen;
while (*pOld && *pNew)
*pNew++ = *pOld++;
delete screen;
}
*this = *ps;
return *this;
}
Screen& Screen::set(char*s){
int space = remainingSpace();
int len = strlen(s);
if(space<len){
std::cerr<<"Screen : warning : truncation : "<<endl<<"space : "<<space<<"string lenght : "<<len<<endl;
len = space;
}
for(int ix = 0; ix<len; ++ix)
*cursor++ = *s++;
return *this;
}
Screen& Screen::set(char ch){
if(ch=='\0')
cerr<<"Screen : warning : "<<endl<<"null character (ignored)."<<endl;
else *cursor = ch;
return *this;
}
Screen& lineY(Screen& s, int row, int col, int len, char ch){
s.move(row,col);
for(int ix = 0; ix<len; ix++)
s.set(ch).down();
return s;
} |
Partager