music-field/include/graphs.hpp

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#ifndef graphs_h
#define graphs_h
#include <type.hpp>
using std::string;
using std::vector;
using std::list;
using std::pair;
using std::map;
class Field;
/*********************************************************************
*
*函数声明
*
*********************************************************************/
//绘图函数声明
unsigned long fresh_screen(int signal);
//计算函数声明
void draw_fields(int signal);
int create_fields(int hw);
/*********************************************************************
*
*图形操作类声明
*
*********************************************************************/
/************************************************
颜色的抽象
***/
class Color{
public:
// 颜色的RGB值范围从0到1
double red, green, blue;
Color():red(1.0),blue(1.0),green(1.0){
}
Color(RawColor color){
red = color[0]/255;
blue = color[1]/255;
green = color[2]/255;
}
Color(const Color &color){
red = color.red;
blue = color.blue;
green = color.green;
}
/**
设置颜色对象的颜色
@param color RawColor颜色数据
*/
void setColor(RawColor color){
red = color[0]/255;
green = color[1]/255;
blue = color[2]/255;
}
/**
设置颜色对象的颜色
@param color Color颜色数据
*/
void setColor(Color color){
red = color.red;
blue = color.blue;
green = color.green;
}
// 将颜色按照相关比例变亮
void brighter(void){
red = sqrt(red);
blue = sqrt(blue);
green = sqrt(green);
}
};
/************************************************
图形的抽象
***/
class Shape{
public:
// 图形形状
GLenum type;
// 点大小和画笔大小
GLfloat point_size, line_size;
// 图形顶点的坐标
vector<Point3> points;
// 图形颜色
Color color;
Shape():type(GL_POINTS),point_size(2.0f),line_size(2.0f),color({255,255,255}){
}
/**
根据储存的信息调用glut函数库中的函数进行绘图前的初始化操作
*/
void flesh(void){
if(point_size != 1.0f)
glPointSize(point_size);
else if(line_size != 1.0f)
glLineWidth(line_size);
glColor3f(color.red, color.blue, color.green);
}
/**
设置图形对象的颜色
@param color RawColor颜色数据
*/
void setColor(RawColor color){
this->color.setColor(color);
}
/**
设置图形对象的颜色
@param color Color颜色数据
*/
void setColor(Color color){
this->color.setColor(color);
}
/**
将图形对象的形状设置为矩形
@param pos 对角线两端点坐标
*/
void setRetangle(const pair<Point3,Point3> pos){
double fx = pos.first[0],fy = pos.first[1];
double sx = pos.second[0], sy = pos.second[1];
setPolygon({{fx,fy,0},{sx,fy,0},{sx,sy,0},{fx,sy,0}});
}
/**
将图形对象的形状设置为多边形
@param pos 多边形每个顶点的坐标
*/
void setPolygon(const vector<Point3> pos){
type = GL_POLYGON;
for(auto i = pos.begin(); i != pos.end(); i++){
points.push_back(*i);
}
}
};
/************************************************
控件的抽象
***/
class View2D {
public:
Point pos;
vector<Shape> shapes;
};
/************************************************
进度条控件的抽象
***/
class Bar:public View2D {
public:
Bar(Point, GLint width){
//Shape *p_shape = new Shape();
}
};
/************************************************
窗体的抽象
***/
class Window {
public:
// 储存指向窗体中要包含的图形对象的指针
static list<Shape *> shapes;
// 储存指向窗体中要包含的控件对象的指针
static map<string,View2D *> menus;
Window(int argc, char **argv){
glutInit(&argc, argv);
}
/**
设置显示模式
@param Mode 参照GLUT函数库相关说明即可
*/
void playMode(int Mode){
glutInitDisplayMode(Mode);
}
/**
设置窗体大小
@param sizexy 输入Size数据
*/
void size(Size sizexy){
glutInitWindowSize(static_cast<int>(sizexy.first), static_cast<int>(sizexy.second));
}
/**
设置窗体的初始位置
@param positionxy 输入Point数据
*/
void position(Point positionxy){
glutPositionWindow(positionxy.first, positionxy.second);
}
/**
创建窗体
@param name 窗体的标题名字
@param func 指向自定义绘制函数的函数指针
*/
void create(string name = "No Name",void (*func)() = Window::displayEngine){
glutCreateWindow(name.data());
glutDisplayFunc(func);
glutMouseFunc(mouseListener);
glutTimerFunc(DRAW_TIMER, draw_fields, 1);
glutTimerFunc(FRESH_TIMER, rendEngine, 1);
}
/**
设置窗体的初始颜色
@param color 输入Color数据
*/
void setColor(Color color){
glClearColor(color.red, color.blue, color.green, 1.0f);
}
/**
显示窗体
*/
void show(void){
glutMainLoop();
}
/**
进行图形对象的实际绘制操作
@param shape 指向目标图形对象的指针
*/
static void rendShape(Shape *shape){
if(shape->point_size != 1.0f)
glPointSize(shape->point_size);
else if(shape->line_size != 1.0f)
glLineWidth(shape->line_size);
glColor3f(shape->color.red, shape->color.blue, shape->color.green);
glBegin(shape->type);
for(auto k = shape->points.begin(); k != shape->points.end();k++){
glVertex3f((*k)[0],(*k)[1],(*k)[2]);
}
glEnd();
}
/**
默认的绘制函数
*/
static void displayEngine(void){
glClear(GL_COLOR_BUFFER_BIT);
for(auto i = shapes.begin(); i != shapes.end(); i++)
rendShape(*i);
//for(auto i = menus.begin(); i != menus.end(); i++)
//rendShape((*i).second);
glutSwapBuffers();
}
/**
默认的鼠标相关事件的监听函数
*/
static void mouseListener(int button,int state,int x,int y){
}
/**
窗口刷新注册函数
@param value 无用值
*/
static void rendEngine(int value){
unsigned long ms = fresh_screen(0);
unsigned int now_fresh = (unsigned int)(FRESH_TIMER - ms);
if(now_fresh < 0 || now_fresh > FRESH_TIMER) now_fresh = 0;
glutTimerFunc(now_fresh, rendEngine, 1);
}
/**
在窗体中直接绘制三角形并可以指定其填充颜色
*/
void draw_triangle(vector<Point3> pos, RawColor color={255, 255, 255}){
Shape *p_shape = new Shape;
p_shape->type = GL_TRIANGLES;
p_shape->setColor(color);
for(auto i = pos.begin(); i != pos.end(); i++){
p_shape->points.push_back(*i);
}
draw_shape(p_shape);
}
/**
直接在窗体中绘制点并可以指定其填充颜色
*/
void draw_point(Point3 pos, GLfloat size = 1.0f, RawColor color={255, 255, 255}){
Shape *p_shape = new Shape;
p_shape->type = GL_POINTS;
p_shape->point_size = size;
p_shape->setColor(color);
p_shape->points.push_back(pos);
draw_shape(p_shape);
}
/**
直接在窗体中绘制多边形并可以指定其填充颜色
*/
void draw_polygon(vector<Point3> pos, RawColor color={255,255,255}){
Shape *p_shape = new Shape;
p_shape->type = GL_POLYGON;
p_shape->setColor(color);
p_shape->setPolygon(pos);
draw_shape(p_shape);
}
/**
直接在窗体中绘制线并可以指定其填充颜色
*/
void draw_line(pair<Point3,Point3> pos, GLfloat size = 1.0f, RawColor color={255,255,255}){
Shape *p_shape = new Shape;
p_shape->type = GL_LINES;
p_shape->line_size = size;
p_shape->setColor(color);
p_shape->points.push_back(pos.first);
p_shape->points.push_back(pos.second);
draw_shape(p_shape);
}
/**
直接在窗体中绘制矩形并可以指定其填充颜色
*/
void draw_retangle(pair<Point3,Point3> pos, RawColor color={255,255,255}){
double fx = pos.first[0],fy = pos.first[1];
double sx = pos.second[0], sy = pos.second[1];
draw_polygon({{fx,fy},{sx,fy},{sx,sy},{fx,sy}},color);
}
/**
在窗体中添加图形对象
@param shape 指向目标图形对象的指针
*/
void draw_shape(Shape *shape){
shapes.insert(shapes.end(),shape);
}
/**
在窗体中添加控件对象
@param name 控件名
@param view 指向目标控件对象的指针
*/
void add_menu(string name, View2D *view){
menus.insert({name,view});
}
};
#endif /* graphs_h */