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graph.h
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graph.h
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// Graph接口
#pragma once
#include "config.h"
#include "window.h"
#include "point.h"
#include "common.h"
static int __static_graph_id = 0; //全局变量：待分配的Graph ID序号
struct graph_description {
//图形通用描述信息
int id; // 图元ID序号
char name[__GRAPH_DESCRIPTION_NAME_MAX__]; //图元名称
struct point center; //图元中心
};
//图形图元接口(抽象类)
struct graph {
__DATA__ int object_id; //图元代号
__DATA__ struct graph * parent;
__DATA__ struct graph ** child;
__DATA__ int child_count;
__DATA__ int child_max;
__DATA__ struct graph_description info;
//构造函数
__FUNCTION__ void (*init)(struct graph *cthis);
//析构函数
__FUNCTION__ void (*exit)(struct graph *cthis);
//添加子元：返回值：图元序号
__FUNCTION__ int (*insert)(struct graph *cthis,struct graph *item);
//删除子元
__FUNCTION__ int (*del)(struct graph *cthis,int item_id);
//返回子元序列
__FUNCTION__ struct graph** (*get_child)(struct graph *cthis);
//返回父元
__FUNCTION__ struct graph* (*get_parent)(struct graph *cthis);
//返回子代数量
__FUNCTION__ int (*get_child_count)(struct graph *cthis);
//虚函数:
//绘制图形
__FUNCTION__ __VIRTUAL__ int (*draw)(struct graph *cthis,struct window * draw_object);
//判断是否相交
__FUNCTION__ __VIRTUAL__ int (*is_cross)(struct graph *cthis,struct point point);
//平移
__FUNCTION__ __VIRTUAL__ int (*move)(struct graph *cthis,struct point base,struct point vector);
//旋转
__FUNCTION__ __VIRTUAL__ int (*rot)(struct graph *cthis,struct point base,float angle);
//缩放
__FUNCTION__ __VIRTUAL__ int (*resize)(struct graph *cthis,struct point base,float rate);
//获得图形中心
__FUNCTION__ __VIRTUAL__ struct point (*get_center)(struct graph *cthis);
//复制自身
__FUNCTION__ __VIRTUAL__ struct graph *(*deepcopy)(struct graph *cthis);
//在画板上画出图元标志
__FUNCTION__ __VIRTUAL__ int (*draw_tag)(struct graph *cthis,struct window * draw_object);
//返回图元信息
__FUNCTION__ __VIRTUAL__ int (*get_tag)(struct graph *cthis,
struct graph_description *out_info,
char *out_info_str);
};
//----------------------------------------------------------------------------------------
void graph_init(struct graph *cthis);
void graph_exit(struct graph *cthis);
int graph_insert(struct graph *cthis,struct graph *item);
int graph_del(struct graph *cthis,int item_id);
struct graph * graph_get_parent(struct graph *cthis);
struct graph ** graph_get_child(struct graph *cthis);
int graph_get_child_count(struct graph *cthis);
//----------------------------------------------------------------------------------------
//虚函数
int graph_draw(struct graph * cthis,struct window * draw_object);
int graph_is_cross(struct graph *cthis,struct point point);
int graph_move(struct graph *cthis,struct point base,struct point vector);
int graph_rot(struct graph *cthis,struct point base,float angle);
int graph_resize(struct graph *cthis,struct point base,float rate);
struct point graph_get_center(struct graph *cthis);
struct graph *graph_deepcopy(struct graph *cthis);
int graph_draw_tag(struct graph *cthis,struct window * draw_object);
int graph_get_tag(struct graph *cthis, struct graph_description *out_info, char *out_info_str);