MS Paint like program in C

MS Paint Editor in C. It is having four function Circle, Rectangle, Line and Pen. Using this four function you can design whatever you want. And later you can save it by taking screenshot of it.

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//MS Paint like program in C #include<graphics.h> #include<stdio.h> #include<conio.h> #include<dos.h> #include<iostream.h> #include<math.h> union REGS in,out; class draw { public: int x,y,click; int temp_click; int rectflag,circflag,linflag,penflag; struct rectarray { int x1,x2,y1,y2; struct rectarray *prev,*next; }; typedef struct rectarray rectnode; struct linarray { int x1,x2,y1,y2; struct linarray *prev,*next; }; typedef struct linarray linnode; struct circarray { int x,y,xrad,yrad; struct circarray *prev,*next; }; typedef struct circarray circnode; struct cord { int x,y; struct cord *prev,*next; }; typedef struct cord cordnode; struct penarray { cord *xy; struct penarray *prev,*next; }; typedef struct penarray pennode; rectnode *rstart; linnode *lstart; circnode *cstart; pennode *pstart; cordnode *cordstart; public: draw() { rstart=NULL; lstart=NULL; cstart=NULL; pstart=NULL; cordstart=NULL; rectflag=0; penflag=0; linflag=0; circflag=0; } void ract() { rectnode *temp; temp=new rectnode; rectflag=1; int x1,y1,x2,y2; restrictmouseptr(); do { toolbox(); delay(100); mouseposi(x1,y1,temp_click); } while(temp_click!=1); do { cleardevice(); temp_click=1; toolbox(); mouseposi(x2,y2,temp_click); drawall(); //setfillstyle(0,15); rectangle(x1,y1,x2,y2); } while(temp_click!=0); temp->x1=x1; temp->y1=y1; temp->x2=x2; temp->y2=y2; temp->prev=NULL; temp->next=NULL; rstart=addrectnode(rstart,temp); rectflag=0; } void lin() { linnode *temp; temp=new linnode; linflag=1; int x1,y1,x2,y2; restrictmouseptr(); do { toolbox(); delay(100); mouseposi(x1,y1,temp_click); } while(temp_click!=1); do { cleardevice(); temp_click=1; toolbox(); mouseposi(x2,y2,temp_click); drawall(); line(x1,y1,x2,y2); } while(temp_click!=0); temp->x1=x1; temp->y1=y1; temp->x2=x2; temp->y2=y2; temp->prev=NULL; temp->next=NULL; lstart=addlinnode(lstart,temp); linflag=0; } void circ() { circnode *temp; temp=new circnode; circflag=1; int x1,y1,x2,y2,xrad=0,yrad=0,cx,cy; restrictmouseptr(); do { toolbox(); delay(100); mouseposi(x1,y1,temp_click); } while(temp_click!=1); do { cleardevice(); temp_click=1; toolbox(); mouseposi(x2,y2,temp_click); drawall(); cx=(x1+x2)/2; cy=(y1+y2)/2; xrad=x2-cx; if(xrad<0) xrad=0-xrad; yrad=y2-cy; if(yrad<0) yrad=0-yrad; setfillstyle(0,15); fillellipse(cx,cy,xrad,yrad); } while(temp_click!=0); temp->x=cx; temp->y=cy; temp->xrad=xrad; temp->yrad=yrad; temp->prev=NULL; temp->next=NULL; cstart=addcircnode(cstart,temp); circflag=0; } void pen() { pennode *temp; temp=new pennode; penflag=1; int x,y; int temp_click; cordstart=NULL; restrictmouseptr(); do { toolbox(); delay(100); mouseposi(x,y,temp_click); } while(temp_click!=1); do { cordnode *t; t=new cordnode; cleardevice(); temp_click=1; toolbox(); mouseposi(x,y,temp_click); drawall(); drawcordnode(cordstart); t->x=x; t->y=y; t->next=NULL; t->prev=NULL; cordstart=addcordnode(cordstart,t); } while(temp_click!=0); temp->xy=cordstart; temp->prev=NULL; temp->next=NULL; pstart=addpennode(pstart,temp); drawall(); penflag=0; } void toolbox() { setfillstyle(1,15); bar(0,0,100,480); setfillstyle(1,0); setcolor(15); if(circflag==1) { setfillstyle(1,15); setcolor(0); } bar(1,1,49,49); circle(23,23,23); setfillstyle(1,0); setcolor(15); if(rectflag==1) { setfillstyle(1,15); setcolor(0); } bar(51,1,99,49); rectangle(52,2,98,48); setfillstyle(1,0); setcolor(15); if(linflag==1) { setfillstyle(1,15); setcolor(0); } bar(1,51,49,99); line(2,75,48,75); setfillstyle(1,0); setcolor(15); if(penflag==1) { setfillstyle(1,15); setcolor(0); } bar(51,51,99,99); line(80,60,85,65); line(60,80,80,60); line(62,82,82,62); line(63,83,83,63); line(65,85,85,65); line(65,85,60,80); line(60,80,60,85); line(65,85,60,85); setfillstyle(1,0); setcolor(15); bar(1,101,49,149); setfillstyle(1,0); setcolor(15); bar(51,101,99,149); bar(1,151,99,450); bar(5,455,95,475); outtextxy(20,460,"Tool Box"); } void draw_graph() { char ch; do { donotrestrictmouseptr(); toolbox(); do { mouseposi(x,y,click); if(x>0&&x<100) { delay(300); cleardevice(); toolbox(); drawall(); if(y>0&&y<50) { if(x>0&&x<50) { outtextxy(x,y,"circle"); } else if(x>50&&x<100) { outtextxy(x,y,"ractangle"); } } else if(y>50&&y<100) { if(x>0&&x<50) { outtextxy(x,y,"line"); } else if(x>50&&x<100) { outtextxy(x,y,"pen"); } } } } while(!(click==1||kbhit())); if(kbhit()) ch=getch(); if(x>0&&x<50&&y>0&&y<50) circ(); else if(x>50&&x<100&&y>0&&y<50) ract(); else if(x>0&&x<50&&y>50&&y<100) lin(); else if(x>50&&x<100&&y>50&&y<100) pen(); } while(ch!=27); } void drawall() { drawcircnode(cstart); drawrectnode(rstart); drawlinnode(lstart); drawpennode(pstart); } rectnode* addrectnode(rectnode *start,rectnode *temp) { rectnode *t; if(start==NULL) { start=temp; } else { t=start; while(t->next!=NULL) t=t->next; t->next=temp; } return start; } linnode* addlinnode(linnode *start,linnode *temp) { linnode *t; if(start==NULL) { start=temp; } else { t=start; while(t->next!=NULL) t=t->next; t->next=temp; } return start; } circnode* addcircnode(circnode *start,circnode *temp) { circnode *t; if(start==NULL) { start=temp; } else { t=start; while(t->next!=NULL) t=t->next; t->next=temp; } return start; } cordnode* addcordnode(cordnode *start,cordnode *temp) { cordnode *t; if(start==NULL) { start=temp; } else { t=start; while(t->next!=NULL) t=t->next; t->next=temp; } return start; } pennode* addpennode(pennode *start,pennode *temp) { pennode *t; if(start==NULL) { start=temp; } else { t=start; while(t->next!=NULL) t=t->next; t->next=temp; } return start; } void drawrectnode(rectnode *start) { rectnode *t; t=start; setfillstyle(0,15); while(t!=NULL) { rectangle(t->x1,t->y1,t->x2,t->y2); t=t->next; } } void drawlinnode(linnode *start) { linnode *t; t=start; while(t!=NULL) { line(t->x1,t->y1,t->x2,t->y2); t=t->next; } } void drawcircnode(circnode *start) { circnode *t; t=start; setfillstyle(0,15); while(t!=NULL) { fillellipse(t->x,t->y,t->xrad,t->yrad); t=t->next; } } void drawcordnode(cordnode *start) { cordnode *t; t=start; while(t!=NULL) { line(t->x,t->y,t->x,t->y); t=t->next; } } void drawpennode(pennode *start) { pennode *t; t=start; while(t!=NULL) { drawcordnode(t->xy); t=t->next; } } }; draw paint; int callmouse() { in.x.ax=1; int86(0X33,&in,&out); return 1; } void mouseposi(int &x,int &y,int &click) { in.x.ax=3; fflush(stdin); int86(0X33,&in,&out); click=out.x.bx; x=out.x.cx; y=out.x.dx; } int mousehide() { in.x.ax=2; int86(0X33,&in,&out); return 1; } void setposi(int &xpos,int &ypos) { in.x.ax=4; in.x.cx=xpos; in.x.dx=ypos; int86(0X33,&in,&out); } void restrictmouseptr() { in.x.ax=7; in.x.cx=100; in.x.dx=640; int86(51,&in,&out); in.x.ax=8; in.x.cx=0; in.x.dx=480; int86(51,&in,&out); } void donotrestrictmouseptr() { in.x.ax=7; in.x.cx=0; in.x.dx=640; int86(51,&in,&out); in.x.ax=8; in.x.cx=0; in.x.dx=480; int86(51,&in,&out); } int main() { char ch; clrscr(); int g=DETECT,m; initgraph(&g,&m,"c:\\turboc3\\bgi"); directvideo=0; callmouse(); paint.draw_graph(); getch(); mousehide(); return 0; }