C指针原理(53)-Ncurses-文本终端的图形
6、自动滚屏
dp@dp:~/cursestest % cat 2.c
#include <ncurses.h>
#include <locale.h>
int main(void){
int y,x,i,j,h,w;
setlocale(LC_ALL,"");
WINDOW *pad;
initscr();//初始化
getmaxyx(stdscr,h,w);//获得屏幕尺寸
//画背景
for(i=0;i<h;i++){
for(j=0;j<w;j++){
mvaddch(i,j,ACS_CKBOARD);
}
}
refresh();
//建立窗口
pad=newpad(80,90);
for (i=0;i<80;i++){
char line[90];
sprintf(line,"line %d\n",i);
mvwprintw(pad,i,1,line);
}
refresh();
prefresh(pad,0,1,5,10,20,25);//刷新pad。0,1 为基垫需要显示区域的左上角置(行列对，以下同此)。5,10,20,45为屏幕显示区域的左上角和右下角位置
for(i=0;i<65;i++){
prefresh(pad,i+1,1,5,10,20,25);//刷新pad，实现流屏;
usleep(30000);
}
getch();//等待按键
delwin(pad);
endwin();//结束
return 0;
}
麦好的AI乐园博客所有内容是原创，如果转载请注明来源
http://blog.csdn.net/myhaspl/
dp@dp:~/cursestest % gcc -lncursesw 2.c -o mytest
dp@dp:~/cursestest % ./mytest
7、在窗口中移动光标
dp@dp:~/cursestest % cat 2.c
#include <ncurses.h>
#include <locale.h>
int main(void){
//init_pair(short index,short foreground,short background)初始化颜色索引
//attron(COLOR_PAIR(索引号)|属性)
//newwin建立窗口,derwin建立窗口的子窗口(相对于父窗口相对位置)，subwin建立窗的子窗口(相对于根窗口绝对位置)
int x,y;
setlocale(LC_ALL,"");
WINDOW *win1,*win2,*subwin;
initscr();//初始化
win1=newwin(15,50,1,1);//新窗口(行，列,begin_y,begin_x)
box(win1,ACS_VLINE,ACS_HLINE);
mvwprintw(win1,1,1,"WIN1");
mvwprintw(win1,2,1,"[email protected]");
win2=newwin(10,40,10,30);//新窗口(行，列,begin_y,begin_x)
box(win2,ACS_VLINE,ACS_HLINE);
wmove(win2,1,1);//移动某窗口的光标
printw("WIN2");
wmove(win2,2,1);//移动某窗口的光标。(窗口,y,x)
printw("[email protected]");
subwin=derwin(win2,3,20,4,5); //子窗口
box(subwin,ACS_VLINE,ACS_HLINE);
mvwprintw(subwin,1,5,"按任意键退出");//(窗口，y,x,字符串)
refresh();//刷新整个大窗口stdscr
wrefresh(win1);
wrefresh(win2);
move(5,60);//在stdscr移动光标
printw("hello.........");
touchwin(win1);//转换当前窗口为win1
wrefresh(win1);
getch();//win1显示完，等待按键显示win2
touchwin(win2);//转换当前窗口为win2
//使用doupdate,可以事先定义要刷新的部分，然后刷新
wnoutrefresh(win2);
wnoutrefresh(subwin);
doupdate();
getyx(subwin,y,x);//获得当前逻辑光标位置
mvwprintw(subwin,y+1,x,"................");//在“按任意键退出"下一行输出"..............."
getch();//等待按键
delwin(win1);
delwin(subwin);
delwin(win2);
endwin();//结束
return 0;
}
编译后运行
dp@dp:~/cursestest % gcc -lncursesw 2.c -o mytest
dp@dp:~/cursestest % ./mytest
8、菜单
dp@dp:~/cursestest % cat 2.c
#include <locale.h>
#include <menu.h>
#include <stdio.h>
#include <ctype.h>
//定义菜单项
static const char *menus[]={
"1-1","1-2","1-3","2-1","2-2","2-3"
};
#define CITEM sizeof(menus)/sizeof(menus[0])//菜单项数
ITEM *items[CITEM];
int main(int argc,char *argv[]){
int i;
int ch;
int mrows,mcols;
WINDOW *win,*subwin;
MENU *mymenu;
//初始化屏幕
initscr();
//不用等待回车键
cbreak();
//不回显
noecho();
//可以处理功能键
keypad(stdscr,TRUE);
//建立菜单项
for(i=0;i<CITEM;i++){
items[i]=new_item(menus[i],menus[i]);//第二个参数为菜单项的描述
}
//建立菜单
mymenu=new_menu(items);
set_menu_format(mymenu,CITEM,1); //设置CITEM行1列的菜单
set_menu_mark(mymenu,">");//菜单选中的MARK
//获得菜单的行列数
scale_menu(mymenu,&mrows,&mcols);
//建立窗口和子窗口
win=newwin(mrows+2,mcols+2,3,30);
keypad(win,TRUE);
box(win,0,0);
subwin=derwin(win,0,0,1,1);
//设置菜单的窗口
set_menu_sub(mymenu,subwin);
//在子窗口上放置菜单
post_menu(mymenu);
refresh();
wrefresh(win);
//获得输入，并移动选择到相应的菜单项
while(toupper(ch=wgetch(win))!='\n'){
if(ch==KEY_DOWN)
menu_driver(mymenu,REQ_DOWN_ITEM);//移动菜单选择
else if(ch==KEY_RIGHT)
menu_driver(mymenu,REQ_RIGHT_ITEM);
else if (ch==KEY_UP)
menu_driver(mymenu,REQ_UP_ITEM);
else if (ch==KEY_LEFT)
menu_driver(mymenu,REQ_LEFT_ITEM);
}
//输出当前项
mvprintw(LINES-2,0,"you select the item :%s\n",item_name(current_item(mymenu)));
refresh();
unpost_menu(mymenu);
getch();
//释放内存
free_menu(mymenu);
for(i=0;i<CITEM;i++) free_item(items[i]);
endwin();
return 1;
}
编译并运行
dp@dp:~/cursestest % gcc -lncursesw -lmenu 2.c -o mytest
dp@dp:~/cursestest % ./mytest
