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Add settitle, setcurshape, gettermsize, getch and getche #3

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merged 3 commits into from Oct 23, 2019
Merged

Add settitle, setcurshape, gettermsize, getch and getche #3

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feebdfc
added Makefile, make functions static
Kestrer Oct 23, 2019
0368043
added settitle, setcurshape, gettermsize
Kestrer Oct 23, 2019
c78a6e9
added getch and getche
Kestrer Oct 23, 2019
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2 changes: 2 additions & 0 deletions .gitignore
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@@ -0,0 +1,2 @@
.DS_Store
demo
16 changes: 16 additions & 0 deletions Makefile
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CC::=cc
PREFIX::=/usr/local

all:

install: nocurses.h
install -CD nocurses.h ${PREFIX}/include/nocurses.h

uninstall:
rm ${PREFIX}/include/nocurses.h

demo: demo.c nocurses.h
${CC} -pthread -lm -o demo demo.c

clean:
rm demo
41 changes: 29 additions & 12 deletions readme.md → README.md
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Expand Up @@ -10,18 +10,23 @@ Here's a demo (demo.c file avaiable in the same repo):
![nocurses.h](img/nocurses.gif)

## Functions Provided
| Function | Description | Example |
|--------------------------|:--------------------------------------------------------------------------------------:|:--------------------:|
| pause() | Waits for the user to hit [ENTER]. | pause(); |
| clrscr() | Clears the screen. | clrscr(); |
| gotoxy(x, y) | Sets the cursor do the position x, y. Where x is the row number and y the line number. | gotoxy(10,25); |
| setfontcolor(color_name) | Sets the text color to one of the colors described on the color table below. | setfontcolor(RED); |
| setbgrcolor(color_name) | Sets the background color to one of the colors described on the color table below. | setbgrcolor(BLUE); |
| setfontbold(status) | Sets the bold attribute on or off. status can be TRUE or FALSE. | setfontbold(TRUE); |
| setunderline(status) | Sets the underline attribute on or off. status can be TRUE or FALSE. | setunderline(FALSE); |
| setblink(status) | Sets the blink attribute on or off. status can be TRUE or FALSE. | setblink(TRUE); |
| clrline() | Clears the row contents. | clrline(); |
| resetcolors() | Reset terminal to default colors. | clrline(); |
| Function | Description | Example |
|--------------------------|:--------------------------------------------------------------------------------------:|:------------------------:|
| wait() | Waits for the user to hit [ENTER]. | wait(); |
| clrscr() | Clears the screen. | clrscr(); |
| gotoxy(x, y) | Sets the cursor do the position x, y. Where x is the row number and y the line number. | gotoxy(10,25); |
| setfontcolor(color_name) | Sets the text color to one of the colors described on the color table below. | setfontcolor(RED); |
| setbgrcolor(color_name) | Sets the background color to one of the colors described on the color table below. | setbgrcolor(BLUE); |
| setfontbold(status) | Sets the bold attribute on or off. status can be TRUE or FALSE. | setfontbold(TRUE); |
| setunderline(status) | Sets the underline attribute on or off. status can be TRUE or FALSE. | setunderline(FALSE); |
| setblink(status) | Sets the blink attribute on or off. status can be TRUE or FALSE. | setblink(TRUE); |
| settitle(title) | Sets the title of the terminal. | settitle("Hello World"); |
| setcurshape(shape_name) | Sets the shape of the cursor in the terminal in the shape table below. | setcurshape(BAR); |
| gettermsize() | Gets the columns and rows of the terminal. | gettermsize(); |
| getch() | Gets a character without waiting for enter. | getch(); |
| getche() | Gets a character and echoes it without waiting for enter. | getche(); |
| clrline() | Clears the row contents. | clrline(); |
| resetcolors() | Reset terminal to default colors. | clrline(); |


## color_name
Expand All @@ -39,4 +44,16 @@ Valid color names are:
| CYAN |
| WHITE |

## shape_name

Valid shape names are:

| shape_name |
|:---------------:|
| BLOCK_BLINK |
| BLOCK |
| UNDERLINE_BLINK |
| UNDERLINE |
| BAR_BLINK |
| BAR |

47 changes: 39 additions & 8 deletions demo.c
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Expand Up @@ -3,7 +3,7 @@

nocurses.h - nocurses library demo

Compile and run with: $gcc -pthread -lm -o demo demo.c && ./demo
Compile and run with: $ make demo && ./demo

*/

Expand All @@ -15,7 +15,7 @@ int i;

int waiting(){
printf("\n\nHit ENTER to continue...");
pause();
wait();
clrscr();
return 0;
}
Expand Down Expand Up @@ -56,21 +56,22 @@ int main(void) {
setfontcolor(WHITE);

printf("\n\n\nHello! Welcome to nocurses.h demo!\nLet me present you its features... \n");

waiting();

printf("The nocurses.h provides these set of functions:\n\n\
pause()\n\
wait()\n\
clrscr()\n\
setfontcolor(COLOR_NAME)\n\
setbgrcolor(COLOR_NAME)\n\
gotoxy(XPOS,YPOS)\n\
setfontbold(STATE)\n\
setunderline(STATE)\n\
setblink(STATE)\n");
setblink(STATE)\n\
settitle(TITLE)\n\
gettermsize()\n");
waiting();

printf("I am using the pause() function to wait for your\ncommand.");
printf("I am using the wait() function to wait for your\ncommand.");
waiting();

printf("See it? The screen was cleared with the clrscr() funciton.");
Expand Down Expand Up @@ -105,10 +106,24 @@ setblink(STATE)\n");

resetcolors();
clrscr();

printf("Now I used resetcolors()");
waiting();

struct termsize size = gettermsize();
printf("I can detect your terminal size.\n\nThis terminal is %d columns and %d rows, so one line should look like this:\n\n", size.cols, size.rows);
for (int i=0;i<size.cols;i++) {
printf("=");
}
waiting();

printf("I have getch() and getche()! Here is getch() until you press q:\n\nPress q to exit:");
while (getch() != 'q');
clrscr();

printf("Here is getche() until you press q:\n\nPress q to exit:");
while (getche() != 'q');


clrscr();
printf("Now some fancy stuff. \n\nThis may or may not work in your terminal emulator,\n so I am going to TRY stuff, ok?\n\n");
waiting();
Expand All @@ -121,7 +136,7 @@ setblink(STATE)\n");
waiting();

setfontbold(FALSE);
printf("BOLD is set fo FALSE --> setfontbold(FALSE)\n\n");
printf("BOLD is set to FALSE --> setfontbold(FALSE)\n\n");
waiting();

setunderline(TRUE);
Expand All @@ -140,6 +155,22 @@ setblink(STATE)\n");
printf("Blinking cursor is set to FALSE --> setblink(FALSE)\n\n");
waiting();

settitle("nocurses demo");
printf("Title is set to \"nocurses demo\" --> settitle(\"nocurses demo\")\n\n");
waiting();

setcurshape(BLOCK);
printf("Cursor is set to BLOCK --> setcurshape(BLOCK)\n\n");
waiting();

setcurshape(UNDERLINE);
printf("Cursor is set to UNDERLINE --> setcurshape(UNDERLINE)\n\n");
waiting();

setcurshape(BAR);
printf("Cursor is set to BAR --> setcurshape(BAR)\n\n");
waiting();

printf("\n\nThat's all! Simple nocurses.h\n\nContribute with it on https://github.com/LionyxML/nocurses/\n\n");

waiting();
Expand Down
158 changes: 134 additions & 24 deletions nocurses.h
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Expand Up @@ -9,8 +9,19 @@
*/

#include <stdio.h>
#ifdef _WIN32
# include <windows.h>
#elif defined(unix) || defined(__unix) || defined(__unix__) || defined(__APPLE__) || defined(__linux__)
# ifndef __unix__
# define __unix__
# endif
# include <sys/ioctl.h>
# include <termios.h>
# include <unistd.h>
#endif

#define ESC "\x1b"

#define ESC 27
#define BLACK 0
#define RED 1
#define GREEN 2
Expand All @@ -20,69 +31,168 @@
#define CYAN 6
#define WHITE 7

#define BLOCK_BLINK 1
#define BLOCK 2
#define UNDERLINE_BLINK 3
#define UNDERLINE 4
#define BAR_BLINK 5
#define BAR 6

#define TRUE 1
#define FALSE 0

struct termsize {
int cols;
int rows;
};


int bg_color = BLACK,
font_color = WHITE,
font_bold = FALSE;
static int bg_color = BLACK,
font_color = WHITE,
font_bold = FALSE;


void pause(){
fgetc(stdin);
static void wait(){
while (fgetc(stdin) != '\n');
}


void clrscr(){
printf("%c[2J%c[?6h", ESC, ESC);
static void clrscr(){
printf(ESC"[2J"ESC"[?6h");
}


void gotoxy(int x, int y){
printf("%c[%d;%dH", ESC, y, x);
static void gotoxy(int x, int y){
printf(ESC"[%d;%dH", y, x);
}


void setfontcolor(int color){
printf("%c[3%dm", ESC, color);
static void setfontcolor(int color){
printf(ESC"[3%dm", color);
font_color = color;
}

void setbgrcolor(int color){
printf("%c[4%dm", ESC, color);
static void setbgrcolor(int color){
printf(ESC"[4%dm", color);
bg_color = color;
}


void setfontbold(int status){
printf("%c[%dm", ESC, status);
static void setfontbold(int status){
printf(ESC"[%dm", status);
font_bold = status;
setfontcolor(font_color);
setbgrcolor(bg_color);
}

void setunderline(int status){
static void setunderline(int status){
if (status) status = 4;
printf("%c[%dm", ESC, status);
printf(ESC"[%dm", status);
setfontcolor(font_color);
setbgrcolor(bg_color);
setfontbold(font_bold);
}

void setblink(int status){
static void setblink(int status){
if (status) status = 5;
printf("%c[%dm", ESC, status);
printf(ESC"[%dm", status);
setfontcolor(font_color);
setbgrcolor(bg_color);
setfontbold(font_bold);
}

void clrline(){
printf("%c[2K%cE", ESC, ESC);
static void settitle(char const* title) {
printf(ESC"]0;%s\x7", title);
}

static void setcurshape(int shape){
// vt520/xterm-style; linux terminal uses ESC[?1;2;3c, not implemented
printf(ESC"[%d q", shape);
}

static struct termsize gettermsize(){
struct termsize size;
#ifdef _WIN32
CONSOLE_SCREEN_BUFFER_INFO csbi;

GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi);
size.cols = csbi.srWindow.Right - csbi.srWindow.Left + 1;
size.rows = csbi.srWindow.Bottom - csbi.srWindow.Top + 1;
#elif defined(__unix__)
struct winsize win;
ioctl(STDOUT_FILENO, TIOCGWINSZ, &win);
size.cols = win.ws_col;
size.rows = win.ws_row;
#else
size.cols = 0;
size.rows = 0;
#endif
return size;
}

static int getch(){
#ifdef _WIN32
HANDLE input = GetStdHandle(STD_INPUT_HANDLE);
if (h == NULL) return EOF;

DWORD oldmode;
GetConsoleMode(input, &oldmode);
DWORD newmode = oldmode & ~(ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT);
SetConsoleMode(input, newmode);
#elif defined(__unix__)
struct termios oldattr, newattr;
tcgetattr(STDIN_FILENO, &oldattr);

newattr = oldattr;
newattr.c_lflag &= ~(ICANON | ECHO);
tcsetattr(STDIN_FILENO, TCSANOW, &newattr);
#endif

int ch = getc(stdin);

#ifdef _WIN32
SetConsoleMode(input, oldmode);
#elif defined(__unix__)
tcsetattr(STDIN_FILENO, TCSANOW, &oldattr);
#endif

return ch;
}

static int getche(){
#ifdef _WIN32
HANDLE input = GetStdHandle(STD_INPUT_HANDLE);
if (h == NULL) return EOF;

DWORD oldmode;
GetConsoleMode(input, &oldmode);
DWORD newmode = oldmode & ~ENABLE_LINE_INPUT;
SetConsoleMode(input, newmode);
#elif defined(__unix__)
struct termios oldattr, newattr;
tcgetattr(STDIN_FILENO, &oldattr);

newattr = oldattr;
newattr.c_lflag &= ~ICANON;
tcsetattr(STDIN_FILENO, TCSANOW, &newattr);
#endif

int ch = getc(stdin);

#ifdef _WIN32
SetConsoleMode(input, oldmode);
#elif defined(__unix__)
tcsetattr(STDIN_FILENO, TCSANOW, &oldattr);
#endif

return ch;
}

static void clrline(){
printf(ESC"[2K"ESC"E");
}

void resetcolors(){
printf("%c001b%c[0m", ESC, ESC);
static void resetcolors(){
printf(ESC"001b"ESC"[0m");
}