static int
read_stdin(void) {
char buf[MAX_LINE_LEN],
retbuf[MAX_LINE_LEN];
ssize_t n, n_off=0;
if(!(n = read(STDIN_FILENO, buf, sizeof buf))) {
if(!dzen.ispersistent) {
dzen.running = False;
return -1;
}
else
return -2;
}
else {
while((n_off = chomp(buf, retbuf, n_off, n))) {
if(!dzen.slave_win.ishmenu
&& dzen.tsupdate
&& dzen.slave_win.max_lines
&& ((dzen.cur_line == 0) || !(dzen.cur_line % (dzen.slave_win.max_lines+1))))
drawheader(retbuf);
else if(!dzen.slave_win.ishmenu
&& !dzen.tsupdate
&& ((dzen.cur_line == 0) || !dzen.slave_win.max_lines))
drawheader(retbuf);
else
drawbody(retbuf);
dzen.cur_line++;
}
}
return 0;
}
//TODO (PM) The check for `ispersistent' is outside the logical scope of this
// function
static int
read_stdin(void) {
char buf[MAX_LINE_LEN],
retbuf[MAX_LINE_LEN];
ssize_t n, n_off=0;
n = read(STDIN_FILENO, buf, sizeof buf);
if(n == 0) { // If 0 bits are read
if(!dzen.ispersistent) { // And dzen is not persistent
dzen.running = False; // Stop running
//TODO (PM) The value of `running' will never be checked since the
// event loop returns if this function returns -1
return -1;
}
else
return -2; // Is persistent
}
else if (n > 0) {
while((n_off = chomp(buf, retbuf, n_off, n))) {
if(!dzen.slave_win.ishmenu
&& dzen.tsupdate
&& dzen.slave_win.max_lines
&& ((dzen.cur_line == 0) || !(dzen.cur_line % (dzen.slave_win.max_lines+1))))
drawheader(retbuf);
else if(!dzen.slave_win.ishmenu
&& !dzen.tsupdate
&& ((dzen.cur_line == 0) || !dzen.slave_win.max_lines))
drawheader(retbuf);
else
drawbody(retbuf);
dzen.cur_line++;
}
}
else {
perror("read"); //TODO (PM) Consolidate error handling
exit(EXIT_FAILURE);
}
return 0;
}
void display(void)//绘图函数
{
glClear(GL_COLOR_BUFFER_BIT);//使用清除颜色来清除指定的缓冲区
glLoadIdentity();//设置当前矩阵为单位矩阵
gluLookAt(xTranslation+30, yTranslation, zTranslation, xTranslation, yTranslation, zTranslation, 0.0, 1.0, 0.0);//第一组数据就是脑袋的位置,第二组数据就是眼睛看的物体的位置,第三组就是头顶朝向的方向
glRotatef(xRotation, 1.0, 0.0, 0.0);//xRotation为旋转角度，此处初始化为0
glRotatef(yRotation, 0.0, 1.0, 0.0);
//画shoulderr和elbowerr右手臂
glPushMatrix();
glColor3f(0.0f, 0.0f, 1.0f);//蓝色
//glColor3f(1.0f, 0.0f, 0.0f); //红色
glTranslatef(-2.0, 3.0, 0.0);
drawbody(armupr, armdownr);
glPopMatrix();
//画shoulderl和elbowl左手臂
glPushMatrix();
glTranslatef(2.0, 3.0, 0.0);
drawbody(armupl, armdownl);
glPopMatrix();
//画上半身
glPushMatrix();
glTranslatef(0.0, 0.0, 0.0);
glScalef(3, 5, 2);
glutWireCube(1.0);
glPopMatrix();
//画大小脑
glPushMatrix();
glTranslatef(0.0, 2.75, 0.0);
glScalef(1.0, 0.5, 1.0);
glutWireCube(1.0);//画一个立方体(小脑)，大小为一个单位，系数表示大小
glScalef(1.0, 2.0, 1.0);
glTranslatef(0.0, 0.25 + 0.75, 0.0);
glScalef(1.5, 1.5, 1.5);
glutWireCube(1.0);//画大脑
glPopMatrix();
//画两条腿
glPushMatrix();
glTranslatef(-(0.6 + 0.1), -(2.5 + 1), 0.0);
glPushMatrix();
glTranslatef(0.0, 1.0, 0.0);
glRotatef((GLfloat)blegr, 1.0, 0.0, 0.0);//右大腿可旋转
glTranslatef(0.0, -1.0, 0.0);
glPushMatrix();
glScalef(1.2, 2.0, 1.2);
glutWireCube(1.0);//右大腿大小设置为一个单位的立方体大小
glPopMatrix();
glTranslatef(0.0, -1.0, 0.0);
glRotatef((GLfloat)slegr, 1.0, 0.0, 0.0);//右小腿可旋转
glTranslatef(0.0, -1.25, 0.0);
glPushMatrix();
glScalef(1.0, 2.5, 1.0);
glutWireCube(1.0);//画右小腿
glPopMatrix();
glTranslatef(0.0, -1.25, 0.0);
glTranslatef(0.0, -0.25, 0.75 - 0.5);
glScalef(1.2, 0.5, 1.5);
glutWireCube(1.0);//画右脚底
glPopMatrix();
glPopMatrix();
glPushMatrix();
glTranslatef(0.6 + 0.1, -(2.5 + 1), 0.0);
glPushMatrix();
glTranslatef(0.0, 1.0, 0.0);
glRotatef((GLfloat)blegl, 1.0, 0.0, 0.0);//左大腿可旋转
glTranslatef(0.0, -1.0, 0.0);
glPushMatrix();
glScalef(1.2, 2.0, 1.2);
glutWireCube(1.0);//画左大腿
glPopMatrix();
glTranslatef(0.0, -1.0, 0.0);
glRotatef((GLfloat)slegl, 1.0, 0.0, 0.0);//左小腿可旋转
glTranslatef(0.0, -1.25, 0.0);
glPushMatrix();
glScalef(1.0, 2.5, 1.0);
glutWireCube(1.0);//画左小腿
glPopMatrix();
glTranslatef(0.0, -1.25, 0.0);
glTranslatef(0.0, -0.25, 0.75 - 0.5);
glScalef(1.2, 0.5, 1.5);
glutWireCube(1.0);//画左脚底
glPopMatrix();
glPopMatrix();
glutSwapBuffers();//交换缓冲区
}
