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485 lines
6.7 KiB
C++
485 lines
6.7 KiB
C++
Drawing Pad - An Easy way to create circles, rectangles etc.
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#include<iostream.h>
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#include<stdio.h>
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#include<string.h>
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#include<string.h>
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#include<stdlib.h>
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#include<graphics.h>
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#include<conio.h>
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#include<dos.h>
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#include<fstream.h>
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class mouse
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{
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union REGS i, o;
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public:
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mouse()
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{
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initmouse();
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showmouseptr();
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}
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void initmouse()
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{
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i.x.ax=0;
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int86(0x33,&i,&o);
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}
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void showmouseptr()
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{
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i.x.ax=1;
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int86(0x33,&i,&o);
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}
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void hidemouseptr()
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{
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i.x.ax=2;
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int86(0x33,&i,&o);
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}
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void getmousepos(int& button, int& x, int& y)
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{
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i.x.ax=3;
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int86(0x33,&i,&o);
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button=o.x.bx;
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x=o.x.cx;
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y=o.x.dx;
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}
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void restrictmouseptr(int x1, int y1, int x2, int y2)
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{
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i.x.ax=7;
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i.x.cx=x1;
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i.x.dx=x2;
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int86(0x33,&i,&o);
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i.x.ax=8;
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i.x.cx=y1;
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i.x.dx=y2;
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int86(0x33,&i,&o);
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}
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};
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class shapes
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{
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public:
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virtual void draw()
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{
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}
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virtual void save (ofstream &ft)
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{
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}
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virtual void open(ifstream &fs)
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{
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}
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};
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class myline:public shapes
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{
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int sx,sy,ex,ey,color;
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public:
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myline()
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{
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}
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myline(int x1,int y1,int x2,int y2,int clr)
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{
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sx=x1;
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sy=y1;
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ex=x2;
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ey=y2;
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color=clr;
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}
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void draw()
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{
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setcolor(color);
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moveto(sx,sy);
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lineto(ex,ey);
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}
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void save(ofstream &ft)
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{
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ft<<"L"<<"
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";
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ft<<sx<<" "<<sy<<" "<<ex<<" "<<ey<<" "<<color<<"
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";
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}
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void open(ifstream &fs)
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{
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fs>>sx>>sy>>ex>>ey>>color;
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}
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};
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class myrectangle:public shapes
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{
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int sx,sy,ex,ey,color;
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public:
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myrectangle()
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{
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}
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myrectangle(int x1,int y1,int x2,int y2,int clr)
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{
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sx=x1;
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sy=y1;
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ex=x2;
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ey=y2;
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color=clr;
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}
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void draw()
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{
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setcolor(color);
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rectangle(sx,sy,ex,ey);
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}
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void save(ofstream &ft)
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{
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ft<<"R"<<"
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";
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ft<<sx<<" "<<sy<<" "<<ex<<" "<<ey<<" "<<color<<"
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";
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}
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void open(ifstream &fs)
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{
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fs>>sx>>sy>>ex>>ey>>color;
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}
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};
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class mycircle:public shapes
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{
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int sx,sy,radius,color;
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public:
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mycircle()
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{
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}
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mycircle(int x1,int y1,int r,int clr)
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{
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sx=x1;
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sy=y1;
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radius=r;
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color=clr;
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}
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void draw()
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{
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setcolor(color);
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circle(sx,sy,radius);
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}
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void save(ofstream &ft)
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{
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ft<<"C"<<"
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";
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ft<<sx<<" "<<sy<<" "<<radius<<" "<<color<<"
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";
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}
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void open(ifstream &fs)
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{
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fs>>sx>>sy>>radius>>color;
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}
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};
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struct node
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{
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void *obj;
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node *link;
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};
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class objarray
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{
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node *head;
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public:
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objarray()
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{
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head =NULL;
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}
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void add(void *o)
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{
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node *temp =new node;
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temp->obj=o;
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temp->link=NULL;
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if(head==NULL)
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head=temp;
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else
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{
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node *q;
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q=head;
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while(q->link!=NULL)
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q=q->link;
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q->link=temp;
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}
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}
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void *getobj(int i)
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{
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node *q;
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q=head;
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for(int n=1; n<i;n++)
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q=q->link;
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return(q->obj);
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}
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int getcount()
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{
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int n=0;
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node *q;
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q=head;
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while(q!=NULL)
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{
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q=q->link;
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n++;
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}
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return n;
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}
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~objarray()
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{
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node *q;
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q=head;
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while(q!=NULL)
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{
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head=head->link;
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delete q;
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q=head;
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}
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}
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};
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void mainscreen()
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{
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cleardevice();
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rectangle(0,0,639,479);
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line(0,30,640,30);
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char *names[]={"Clear","Open","Save","Line","Rect","Circ","Exit"};
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int x,i;
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for(x=5,i=0;x<=7*90;x+=90,i++)
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{
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setcolor(WHITE);
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rectangle(x,5,x+70,25);
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floodfill(x+1,6,WHITE);
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settextstyle(1,0,3);
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setcolor(BLACK);
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outtextxy(x+10,0,names[i]);
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}
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}
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void DisplayName(int ycor)
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{
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char *name[] = {"D","R","A","W","I","N","G"," ","P","A","D"};
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int i;
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settextjustify(1,1);
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settextstyle(4,0,7);
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for(i=0;i<11;i++)
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{
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setcolor(i+2);
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outtextxy(40+i*45,ycor, name[i]);
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}
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}
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music()
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{
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int i ;
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float octave[7] = { 830.81, 846.83, 864.81, 674.61, 596, 420, 1046.94
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} ;
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for ( i = 0 ; i < 7 ; i++ )
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{
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sound ( octave[i] * 5 ) ;
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delay ( 30 ) ;
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}
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nosound();
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}
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void Welcome()
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{
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char pattern[8] = {0x00, 0x70, 0x12, 0x27, 0x00, 0x27, 0x20, 0x70};
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int i;
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setfillpattern(pattern,BLUE);
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for(i=0;i<=320;i++)
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{
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bar(320-i,240-i*0.75,320+i,240+i*0.75);
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delay (0.3) ;
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}
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settextjustify(1,1);
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DisplayName(100);
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settextstyle(5,0,4);
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outtextxy(100,300,"Hello ");
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settextstyle(7,0,6);
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setcolor(11);
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outtextxy(320,350,"World");
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music();
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delay(1000);
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}
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void main()
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{
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ifstream fs;
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ofstream ft;
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int gd= DETECT,gm;
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initgraph(&gd,&gm,"C:\tc\bgi");
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mainscreen();
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music();
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setviewport(1,31,638,478,1);
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mouse m;
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int button,x,y,flag=0;
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int t,i,index;
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int strptx,strpty,endptx,endpty;
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objarray arr;
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while(1)
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{
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button=0;
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m.getmousepos(button,x,y);
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if(((button &1)==1)&&(flag==0))
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for(t=5,i=0;t<=7*90;t+=90,i++)
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if(x>=t && x<=t+70 && y>=5 && y<=25)
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{
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index=i;
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flag=1;
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break;
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}
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int clmum=random(16);
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int sx=random(638);
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int sy=random(478);
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int ex=random(638);
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int ey=random(478);
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int r=random(200);
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switch(index)
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{
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case 0:
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m.getmousepos(button,x,y);
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if(((button &1)==0)&&(flag==1))
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{
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clearviewport();
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flag=0;
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}
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break;
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case 1:
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m.getmousepos(button,x,y);
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if(((button &1)==0)&&(flag==1))
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{
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fs.open("output.txt",ios::in);
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shapes *ptr;
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char a[2];
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while(fs)
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{
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fs>>a;
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if(strcmp(a,"L")==0)
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{
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myline *l=new myline();
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l->open(fs);
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arr.add(l);
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}
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if(strcmp(a,"R")==0)
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{
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myrectangle *r=new myrectangle();
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r->open(fs);
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arr.add(r);
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}
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if(strcmp(a,"C")==0)
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{
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mycircle *c=new mycircle();
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c->open(fs);
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arr.add(c);
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}
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}
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fs.close();
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int count=arr.getcount();
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for(int i=1;i<=count;i++)
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{
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ptr=(shapes*)arr.getobj(i);
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ptr->draw();
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}
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flag=0;
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}
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break;
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case 2:
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m.getmousepos(button,x,y);
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if(((button &1)==0)&&(flag==1))
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{
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ft.open("output.txt",ios::out);
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int count=arr.getcount();
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shapes *ptr;
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for(i=1;i<=count;i++)
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{
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ptr=(shapes*)arr.getobj(i);
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ptr->save(ft);
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}
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ft.close();
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flag=0;
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}
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break;
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case 3:
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m.getmousepos(button,x,y);
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if(((button &1)==0)&&(flag==1))
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{
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setcolor(clmum);
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moveto(sx,sy);
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lineto(ex,ey);
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myline *l=new myline(sx,sy,ex,ey,clmum);
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if(l==NULL)
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exit(1);
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arr.add(l);
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flag=0;
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}
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break;
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case 4:
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m.getmousepos(button,x,y);
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if(((button &1)==0)&&(flag==1))
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{
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setcolor(clmum);
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rectangle(sx,sy,ex,ey);
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myrectangle *r=new myrectangle(sx,sy,ex,ey,clmum);
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if(r==NULL)
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exit(1);
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arr.add(r);
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flag=0;
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}
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break;
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case 5:
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m.getmousepos(button,x,y);
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if(((button &1)==0)&&(flag==1))
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{
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setcolor(clmum);
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circle(sx,sy,r);
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mycircle *c=new mycircle(sx,sy,r,clmum);
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if(r==NULL)
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exit(1);
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arr.add(c);
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flag=0;
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}
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break;
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}
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if(index==6)
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break;
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}
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Welcome();
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closegraph();
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restorecrtmode();
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}
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