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rect.h
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rect.h
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//基本图元库：直线
#include "common.h"
#include "point.h"
#include "graph.h"
struct graph_rect {
//基本图元：直线
struct graph graph; //继承自类Graph
//对角线起点
__DATA__ struct point pstart;
//对角线终点
__DATA__ struct point pend;
__DATA__ struct point pa; //附加点坐标
__DATA__ struct point pb; //附加点坐标
//继承自graph的方法----------------------------------------------------------------------
//添加子元：返回值：图元序号
__FUNCTION__ int (*insert)(struct graph_rect *cthis,struct graph_rect *item);
//删除子元
__FUNCTION__ int (*del)(struct graph_rect *cthis,int item_id);
//返回子元序列
__FUNCTION__ struct graph** (*get_child)(struct graph_rect *cthis);
//返回父元
__FUNCTION__ struct graph* (*get_parent)(struct graph_rect *cthis);
//返回子代数量
__FUNCTION__ int (*get_child_count)(struct graph_rect *cthis);
//覆写的函数------------------------------------------------------------------------------
//构造函数
__FUNCTION__ __OVERRIDE__ void (*init)(struct graph_rect *cthis,struct point pstart,struct point pend);
//析构函数
__FUNCTION__ __OVERRIDE__ void (*exit)(struct graph_rect *cthis);
//绘制图形
__FUNCTION__ __OVERRIDE__ int (*draw)(struct graph_rect *cthis,struct window * draw_object);
//判断是否相交
__FUNCTION__ __OVERRIDE__ int (*is_cross)(struct graph_rect *cthis,struct point point);
//平移
__FUNCTION__ __OVERRIDE__ int (*move)(struct graph *cthis,struct point base,struct point vector);
//旋转
__FUNCTION__ __OVERRIDE__ int (*rot)(struct graph *cthis,struct point base,float angle);
//缩放
__FUNCTION__ __OVERRIDE__ int (*resize)(struct graph *cthis,struct point base,float rate);
//获取点
__FUNCTION__ __OVERRIDE__ struct point (*get_center)(struct graph *cthis);
//复制自身
__FUNCTION__ __OVERRIDE__ struct graph *(*deepcopy)(struct graph *cthis);
//在画板上画出图元标志
__FUNCTION__ __OVERRIDE__ int (*draw_tag)(struct graph *cthis,struct window * draw_object);
//返回图元信息
__FUNCTION__ __OVERRIDE__ int (*get_tag)(struct graph *cthis,
struct graph_description *out_info,
char *out_info_str);
};
void graph_rect_init(struct graph_rect * cthis,struct point pstart,struct point pend);
void graph_rect_exit(struct graph_rect * cthis);
struct graph_rect * graph_rect_new(struct point pstart,struct point pend);
void graph_rect_delete(struct graph_rect * cthis);
int graph_rect_insert(struct graph_rect *cthis,struct graph_rect *item);
int graph_rect_del(struct graph_rect *cthis,int item_id);
struct graph** graph_rect_get_child(struct graph_rect *cthis);
struct graph* graph_rect_get_parent(struct graph_rect *cthis);
int graph_rect_get_child_count(struct graph_rect *cthis);
int graph_rect_draw(struct graph * cthis, struct window * draw_object);
int graph_rect_is_cross(struct graph *cthis, struct point point);
int graph_rect_move(struct graph *cthis,struct point base,struct point vector);
int graph_rect_rot(struct graph *cthis,struct point base,float angle);
int graph_rect_resize(struct graph *cthis,struct point base,float rate);
struct point graph_rect_get_center(struct graph *cthis);
struct graph *graph_rect_deepcopy(struct graph *cthis);
int graph_rect_draw_tag(struct graph *cthis,struct window * draw_object);
int graph_rect_get_tag(struct graph *cthis, struct graph_description *out_info, char *out_info_str);