ncurses 与 panel
ncurses 与 panel
一下是ncurses
使用面板库panel
的一个demo程序。
#include <ncurses.h>
#include <panel.h>
#include <string.h>
void init_wins(WINDOW **wins, int n);
void win_show(WINDOW *win, char *label, int label_color);
void print_in_middle(WINDOW *win, int starty, int startx, int width, char *string, chtype color);
int main()
{
WINDOW *my_wins[3];
PANEL *my_panels[3];
PANEL *top;
int ch;
int new_x;
int new_y;
int widht;
int height;
int panel_c;
enum {
set_size,
move_,
none_
} status = none_;
/*初始化curses */
initscr();
start_color();
raw();
noecho();
keypad(stdscr, TRUE);
curs_set(0);
/* 初始化所有的颜色*/
init_pair(1, COLOR_RED, COLOR_WHITE);
init_pair(2, COLOR_GREEN, COLOR_BLACK);
init_pair(3, COLOR_BLUE, COLOR_BLACK);
init_pair(4, COLOR_CYAN, COLOR_BLACK);
init_wins(my_wins, 3);
my_panels[0] = new_panel(my_wins[0]);
my_panels[1] = new_panel(my_wins[1]);
my_panels[2] = new_panel(my_wins[2]);
set_panel_userptr(my_panels[0],my_panels[1]);
set_panel_userptr(my_panels[1],my_panels[2]);
set_panel_userptr(my_panels[2],my_panels[0]);
update_panels();
attron(COLOR_PAIR(4));
attroff(COLOR_PAIR(4));
doupdate();
top = my_panels[2];
panel_c = 2;
mvprintw(LINES-2, 0, "Use tab to browse through the windows (F1 to Exit) [%d]", panel_c + 1);
while((ch = getch()) != KEY_F(1))
{
switch(ch) {
case '\t':
if (status == none_) {
bool is_hide;
top = (PANEL *) panel_userptr(top);
is_hide = panel_hidden(top);
if (panel_c == 2)
panel_c = 0;
else
panel_c ++;
mvprintw(LINES-2, 0, "Use tab to browse through the windows (F1 to Exit) [%d]", panel_c + 1);
if (is_hide)
printw(" [hide] ");
else {
top_panel(top);
printw(" [show] ");
}
}
break;
case 'm': {
WINDOW *win = panel_window(top);
getbegyx(win, new_y, new_x);
status = move_;
mvprintw(LINES-2, 0, "Moveing Windows (ENTER to Exit) [%d] ", panel_c + 1);
break;
}
case 'r': {
WINDOW *win = panel_window(top);
getbegyx(win, new_y, new_x);
getmaxyx(win, height, widht);
status = set_size;
mvprintw(LINES-2, 0, "Set Windows Size (ENTER to Exit) [%d] %d %d ", panel_c + 1, height, widht);
break;
}
case 's':
if (status == none_)
show_panel(top);
break;
case 'h':
if (status == none_) {
if (panel_hidden(top))
show_panel(top);
else
hide_panel(top);
}
break;
case KEY_RIGHT:
if (status == move_)
new_x ++;
else
widht ++;
break;
case KEY_LEFT:
if (status == move_)
new_x --;
else
widht --;
break;
case KEY_UP:
if (status == move_)
new_y --;
else
height --;
break;
case KEY_DOWN:
if (status == move_)
new_y ++;
else
height ++;
break;
case 10:
status = none_;
mvprintw(LINES-2, 0, "Use tab to browse through the windows (F1 to Exit) [%d]\n", panel_c + 1);
break;
default:
mvprintw(LINES-3, 0, "ch = %d\n", ch);
break;
}
if (status == move_)
move_panel(top, new_y, new_x);
else if (status == set_size) {
char label[80] = {};
WINDOW *old = panel_window(top);
WINDOW *win = newwin(height, widht, new_y, new_x);
replace_panel(my_panels[panel_c], win);
delwin(old);
sprintf(label, "Window Number %d", panel_c + 1);
win_show(win, label, panel_c + 1);
}
update_panels();
doupdate();
}
endwin();
return 0;
}
// 初始化三个窗体并放入数组wins中
void init_wins(WINDOW *wins[], int n) {
char label[80] = {};
int x = 10;
int y = 2;
for(int i = 0; i < n; i++) {
wins[i] = newwin(10, 40, y, x);
sprintf(label, "Window Number %d", i + 1); // 设置窗体名字
win_show(wins[i], label, i + 1); // 绘制窗体内的内容
y += 3;
x += 7;
}
}
void win_show(WINDOW *win, char *label, int label_color) {
int startx;
int starty;
int height;
int width;
getbegyx(win, starty, startx);
getmaxyx(win, height, width);
box(win, 0, 0);
mvwhline(win, 2, 1, '-', width-2); // 画一条线
print_in_middle(win, 1, 0, width, label, COLOR_PAIR(label_color)); // 在中间显示文字
}
void print_in_middle(WINDOW *win, int y, int startx, int width, char *string, chtype color) {
int x;
if(win == NULL)
win = stdscr;
if(y == 0)
getyx(win, y, x);
x = startx + (width - strlen(string)) / 2;
wattron(win, color);
mvwprintw(win, y, x, "%s", string);
wattroff(win, color);
refresh();
}
按tab
切换窗体,按m
改变窗体位置,按r
设定窗体大小。按h
显示或隐藏窗体。