一個純C實現的圖形化計算器
一個純C實現的圖形化計算器，可以鼠標點擊操作
#include"graphics.h"include"dos.h"
include"stdio.h"
include"math.h"
union REGS i,o; char text[]={ "7","8","9","", "4","5","6","/", "1","2","3","+", "0","00",".","-", "M","M+","M-","+/-", "MR","MC","x^2","sr", "OFF","AC","CE","="};
int k=0,pass,op,prop,newnum=1,bt,memo=1,d=0,sq; long double num=0,accum,m;
void normalbutton(int ,int ,int ,int,char**);
void main()
{ int gd=DETECT,gm,x1,x2,y1,y2,i,j,maxx,maxy,x,y,button; char text1[]={""","T","o"," ","K","n","o","w"," ","a","b","o", "u","t"," ","m","e"," ","l","o","g","o","n"," ",":"}; char text2[]={"w","w","w",".","g","e","o","c","i","t","i","e","s", ".","c","o","m","/","t","a","l","k","d","e","e","p", "e","s","h"};
initgraph(&gd,&gm,"");
if(initmouse()==0) { closegraph(); restorecrtmode(); printf(" Mouse driver not loded"); exit(1); } showmouseptr(); // x=y=50; movemouseptr(&x,&y);
setbkcolor(11); setcolor(1); rectangle(198,140,417,163); rectangle(199,141,418,164); rectangle(197,139,416,162); rectangle(185,130,430,450); rectangle(184,129,431,451); rectangle(182,127,433,454); rectangle(181,126,434,453);
//setfillstyle(SOLID_FILL,3); //bar(200,142,415,161);
outtextxy(200,50,"A Calculator in C"); outtextxy(200,100,"Press OFF button to exit...."); y1=140; y2=160;
for(j=0;j<7;j++){ x1=200; x2=235; y1+=40; y2+=40;
for(i=0;i<4;i++) { normalbutton(x1,x2,y1,y2,text); x1+=60; x2+=60; } }
while(1) {
getmousepos(&button,&x,&y); y1=140; y2=160;/ if( (x>400&&x<450) && (y>400&&y<420) ) { if((button & 1)==1) { sound(500); delay(5); exit(); } }/ for(j=0;j<7;j++) { x1=200; x2=235; y1+=40; y2+=40;
for(i=0;i<4;i++) {
if((x<x2&&x>x1)&&(y<y2&&y>y1)){ if((button & 1)==1) { gotoxy(28,10); // printf("%d",ch=text[j4+i]); // printf("char is %c",ch); bt=j4+i; // printf("char is %d",j4+i); setcolor(11); outtextxy(x1+12,y1+7,text[j*4+i]);
if(num>pow(10.0,18)) exit(); sound(500);delay(10);nosound(); delay(250); sound(400);delay(10); nosound(); switch (bt) { case 8 : addnum(1); break; case 9 : addnum(2); break; case 10 : addnum(3); break; case 4 : addnum(4); break; case 5 : addnum(5); break; case 6 : addnum(6); break; case 0 : addnum(7); break; case 1 : addnum(8); break; case 2 : addnum(9); break; case 12 : addnum(0); break; case 11 : // plus operation(1); break; case 15 : // minus operation(2); break; case 3 : // multiplication operation(3); break; case 7 : // division operation(4); break; case 13: doublezero(); break; case 14 : decimal(); break; case 16: mem(); break; case 20: recallmem(); break; case 19: plusminus(); break; case 17: plusm(); break; case 18: minusm(); break; case 21: clearm(); break; case 22 : square(); break; case 23: sqroot(); break; case 24: // OFF hidemouseptr(); setcolor(1); for(j=0;j<20;j++) { for(i=75;i<481;i+=20) line(0,0+i+j,640,j+0+i); delay(100); } setcolor(14); outtextxy(225,200,"Thanks for using it !"); delay(2000); setcolor(13); for(j=0;j<20;j++) { for(i=0;i<640;i+=20) line(0+i+j,0,j+0+i,640); delay(100); } setcolor(1); for(i=0;i<25;i++) { outtextxy(75+10*i,200,text1[i]); sound(3000); delay(50); nosound(); } for(i=0;i<29;i++) { outtextxy(125+10*i,225,text2[i]); sound(3000); delay(50); nosound(); } delay(2500); sound(5000); delay(10); exit(); break; case 25: allclear(); break; case 26: clear(); break; case 27: // equalto operation(5); break; } setcolor(1); outtextxy(x1+12,y1+7,text[j*4+i]); }} x1+=60; x2+=60;
}
}
}
}
void normalbutton(int x1,int x2,int y1,int y2,char **text) { setcolor(15); rectangle(x1-2,y1-2,x2+1,y2+1); rectangle(x1-1,y1-1,x2+2,y2+2); setcolor(7); rectangle(x1,y1,x2+2,y2+2); rectangle(x1,y1,x2+1,y2+1);
setfillstyle(SOLID_FILL,14); bar(x1,y1,x2,y2); setcolor(1); outtextxy(x1+12,y1+7,text[k]); k++; } / initmouse / initmouse() { i.x.ax=0; int86 (0x33,&i,&o); return(o.x.ax); } hidemouseptr() { i.x.ax=2; int86(0x33,&i,&o); }
/ displays mouse pointer / showmouseptr() { i.x.ax=1; int86(0x33,&i,&o); return 0; }
/gets mouse coordinates and button status/
getmousepos(int button,int x,int y) { i.x.ax=3; int86(0x33,&i,&o); button=o.x.bx; x=o.x.cx; y=o.x.dx; return 0; } / Move mouse ptr to x,y / movemouseptr(int x,int y) { i.x.ax=4; int86(0x33,&i,&o); o.x.cx=x; o.x.dx=y; return 0; }
addnum(int pass) { if(sq) newnum=1;
if(newnum) { if(d) { num=pass/(pow(10.0,d)); d++; newnum=0; } else { num=pass; newnum=0; } } else { /* if(num==0) { if(d) { num=num+pass/(pow(10.0,d)); d++; } else num=pass; } */ // else { if(d) { if(num<0) num=num-pass/(pow(10.0,d)); else num=num+pass/(pow(10.0,d)); d++; } else { num=num*10+pass; } } }printf("%25.5Lf",num); }
operation(int opr) { long double pnum; pnum=num;
if(newnum && (prop != 5) && memo) { } else { newnum=1; d=0; sq=0; switch(prop) { case 1: accum=accum+pnum; break; case 2: accum=accum-pnum; break; case 3: accum=accum*pnum; break; case 4: accum=accum/pnum; break; default: accum=pnum; } } prop=opr; num=accum; printf("%25.5Lf",num); }
allclear() { sq=0; accum=0; num=0; d=0; newnum=1; printf("%25.5Lf",num); }
mem() { m=num; } recallmem() { memo=0; printf("%25.5Lf",m); num=m; } plusminus() { if(num!=0) { num*=-1; printf("%25.5Lf",num); } }
plusm() { m+=num; } minusm() { m-=num; } clearm() { m=0; } decimal() { if(!d) {d=1; if(newnum==1) { num=0; } printf("%25.5Lf",num); } }
square() { sq=1; num=num; printf("%25.5Lf",num); // newnum=1; } sqroot() { sq=1; num=pow(num,0.5); printf("%25.5Lf",num); // newnum=1; } doublezero() { if(d) { // num=num+pass/(pow(100.0,d)); d++; d++; } else num=100; printf("%25.5Lf",num); }
clear() { num=0; printf("%25.5Lf",num); }</pre>