This blog is created for my nephew who studding engineering (Sujit from SMU and Sumit from SRM ). This example illustrate how to use C programing and how to use graphics and assembly code in this language. I know this is a little advance concept for them but you can use this when you will get expertise in C.
To run following code you may use Turboc3 or GCC compiler. It will draw a PaintBrush for you..
#include<stdio.h>
#include<conio.h>
#include<dos.h>
#include<stdlib.h>
#include<graphics.h>
#include<math.h>
#include<ctype.h>
/* Global variable declaration */
int iRow=0,iCol=0,iStatus=0;
int fColor=0,bColor=15,Action=1;
/**** Function Declaration ****/
void initmouse(void); //initialize mouse
void yesmouse(void); //show mouse
void nomouse(void); //hide mouse
void mouse(void); //get mouse postion and button status
void graphics_mode(void); //initialize graphic mode
void screen(void); //draw screen
void titlebar(void); //draw title bar
void toolbar(void); //draw toolbar
void colorbar(void); // draw color bars
void actionbox(void); //draw action box
void colorbox(void); // draw current colors box
void fbcolors(int x,int y); //change colors
void draw(int x1,int y1,int x2,int y2); //draw selected shape
/* Initialize Mouse */
void initmouse(void)
{
iRow = 0,iCol = 0,iStatus = 0;
asm { //means below code is assembly language
mov ax,0; //0 mean initialize
int 0x33; //0x33 in interrupt for mouse
}
}
/* Enable mouse */
void yesmouse(void)
{
asm {
mov ax,1; //1 mean show
int 0x33;
}
}
/* Disable mouse */
void nomouse(void)
{
asm {
mov ax,2; //2 mean hide
int 0x33;
}
}
/* Find Row , Column and Status */
void mouse(void)
{
asm {
mov ax,3; // 3 mean let mouse move
int 0x33;
mov iRow,dx; // get mouse position and click status
mov iCol,cx;
mov iStatus,bx;
}
}
void graphics_mode(void)
{
int gD = DETECT,gM = DETECT; //auto detect graphic driver and mode
initgraph(&gD,&gM,"c:\\tc\\bgi"); //this is to initialize graphics
}
void titlebar(void)
{
setfillstyle(1,1);
bar(0,0,640,20); //title bar in blue color
setcolor(15);
rectangle(621,3,636,18); //close box
line(621,3,636,18);
line(636,3,621,18);
settextstyle(1,0,1); //write title
outtextxy(295,0,"Musawwir");
}
void actionbox(void)
{
setfillstyle(1,7); //erase previous action text
bar(0,200,79,225);
setcolor(1);
settextstyle(2,0,5); //write current action text
if(Action==1) {outtextxy(10,200,"Rectangel");}
if(Action==2) {outtextxy(10,200,"Circle");}
if(Action==3) {outtextxy(10,200,"Line");}
if(Action==4) {outtextxy(10,200,"Bar");}
if(Action==5) {outtextxy(10,200,"Arc");}
if(Action==6) {outtextxy(10,200,"Pixels");}
if(Action==7) {outtextxy(10,200,"PieSlice");}
if(Action==8) {outtextxy(10,200,"Bar3D");}
}
void colorbox(void)
{
setfillstyle(1,bColor); //display current foreground color
bar(38,283,58,303);
setfillstyle(1,fColor); //display current background color
bar(20,265,40,285);
setcolor(0);
rectangle(38,283,58,303); //draw rectangles around them
rectangle(20,265,40,285);
}
void toolbar(void)
{
setfillstyle(1,7); //draw left gray area
bar(0,21,79,435);
setcolor(0);
rectangle(12,30,32,50); //draw 8 rectanlges for tools
rectangle(42,30,62,50);
rectangle(12,62,32,82);
rectangle(42,62,62,82);
rectangle(12,92,32,112);
rectangle(42,92,62,112);
rectangle(12,122,32,142);
rectangle(42,122,62,142);
rectangle(16,33,28,46); //draw shapes in those rectangel to show which action they are
circle(52,40,8);
line(15,80,27,64);
setfillstyle(1,0);
bar(46,64,58,80);
arc(22,102,0,170,5);
settextstyle(1,0,1);
outtextxy(52,85,".");
pieslice(22,132,0,170,5);
bar3d(45,126,56,140,3,1);
settextstyle(1,0,1); //write action heading
outtextxy(8,170,"Action");
actionbox();
setcolor(0);
settextstyle(1,0,1); // write color heading and draw a box around colors
outtextxy(8,230,"Colors");
rectangle(7,260,73,310);
colorbox();
}
void colorbar(void)
{
int ccount;
setfillstyle(1,7); //draw bottom gray area
bar(0,436,640,480);
for(ccount=0;ccount<16;ccount++) //draw 16 blocks with 16 colors
{ //2 times for fore and back color
setfillstyle(1,ccount);
bar(80+(ccount*20),441,80+(ccount*20)+15,456);
bar(80+(ccount*20),461,80+(ccount*20)+15,476);
setcolor(0);
rectangle(80+(ccount*20),441,80+(ccount*20)+15,456);
rectangle(80+(ccount*20),461,80+(ccount*20)+15,476);
}
settextstyle(2,0,5); //write their headings
outtextxy(2,441,"Fore Color");
outtextxy(2,461,"Back Color");
}
void screen(void)
{
setfillstyle(1,15); //draw white drawing area
bar(80,21,640,435);
titlebar(); //call other components to complete screens
toolbar();
colorbar();
}
void fbcolors(int x,int y) //x and y are mouse postion passed from main
{
if((y>=441) && (y<=456)) // first color boxes row?
{ //check which box and set fore color accordingly
if((x>=80) && (x<=95)) {fColor=0;}
if((x>=100) && (x<=115)) {fColor=1;}
if((x>=120) && (x<=135)) {fColor=2;}
if((x>=140) && (x<=155)) {fColor=3;}
if((x>=160) && (x<=175)) {fColor=4;}
if((x>=180) && (x<=195)) {fColor=5;}
if((x>=200) && (x<=215)) {fColor=6;}
if((x>=220) && (x<=235)) {fColor=7;}
if((x>=240) && (x<=255)) {fColor=8;}
if((x>=260) && (x<=275)) {fColor=9;}
if((x>=280) && (x<=295)) {fColor=10;}
if((x>=300) && (x<=315)) {fColor=11;}
if((x>=320) && (x<=335)) {fColor=12;}
if((x>=340) && (x<=355)) {fColor=13;}
if((x>=360) && (x<=375)) {fColor=14;}
if((x>=380) && (x<=395)) {fColor=15;}
}
if((y>=461) && (y<=476)) // second color boxes row?
{ //check which box and set back color accordingly
if((x>=80) && (x<=95)) {bColor=0;}
if((x>=100) && (x<=115)) {bColor=1;}
if((x>=120) && (x<=135)) {bColor=2;}
if((x>=140) && (x<=155)) {bColor=3;}
if((x>=160) && (x<=175)) {bColor=4;}
if((x>=180) && (x<=195)) {bColor=5;}
if((x>=200) && (x<=215)) {bColor=6;}
if((x>=220) && (x<=235)) {bColor=7;}
if((x>=240) && (x<=255)) {bColor=8;}
if((x>=260) && (x<=275)) {bColor=9;}
if((x>=280) && (x<=295)) {bColor=10;}
if((x>=300) && (x<=315)) {bColor=11;}
if((x>=320) && (x<=335)) {bColor=12;}
if((x>=340) && (x<=355)) {bColor=13;}
if((x>=360) && (x<=375)) {bColor=14;}
if((x>=380) && (x<=395)) {bColor=15;}
}
colorbox(); //refresh color boxes to reflect changes
}
void draw(int x1,int y1,int x2,int y2) //two mouse potions passed by main
{
int radius; //radius for arc,circle,bar3d
radius=sqrt(pow((x2-x1),2)+pow((y2-y1),2)); //calculate radius from distance formula
setcolor(fColor); //set fore color to forgound
setfillstyle(1,fColor); //set fill color to forgound
nomouse(); //hide mouse show mouse pointer wont come in b/w drawing
if(Action==1) rectangle(x1,y1,x2,y2); //draw recangel
if(Action==2) circle(x1,y1,radius); //draw circle
if(Action==3) line(x1,y1,x2,y2); //draw line
if(Action==4) bar(x1,y1,x2,y2); //drawbar
if(Action==5)
{
arc(x1+(x2-x1),y1+(y2-y1),0,180,radius/2);//draw arc using half raduis and use middle of two mouse position as center
}
if(Action==6)
{
putpixel(x1,y1,fColor); //put a pixel at current mouse position
}
if(Action==7)
{
pieslice(x1+(x2-x1),y1+(y2-y1),0,180,radius/2); //draw pieslice using half raduis and use middle of two mouse position as center
}
if(Action==8)
{
bar3d(x1,y1,x2,y2,radius/4,1);//draw bar3d using quarter raduis and 3d portion at top (denoted by 1)
}
titlebar(); //refresh other screen components to erase over drawn parts
toolbar();
colorbar();
yesmouse(); //show mouse again
}
void main(void)
{
int x1,y1,x2,y2; //for two mouse positions
initmouse(); //initialize mouse
graphics_mode(); //intialize graphics mode
screen(); //draw complete screen
yesmouse(); // show mouse
while(1) // unconditional loop, will be terminated on exit(0) statment which ends program
{
mouse(); //let mouse mouse and get mouse variables
if((iRow>=3) && (iRow<=18) && (iCol>=621) && (iCol<=636) && (iStatus==1))
{ //close box clicked?
closegraph();
exit(0); //end program
}
if((iRow>=441) && (iRow<=476) && (iCol>=80) && (iCol<=395) && (iStatus==1))
{ // color bar at bottom clicked?
fbcolors(iCol,iRow); //check which color clicked and set it
}
if((iRow>=30) && (iRow<=50) && (iCol>=12) && (iCol<=32) && (iStatus==1))
{ //rectangle clicked?
Action=1;
actionbox(); //refrsh action text
}
if((iRow>=30) && (iRow<=50) && (iCol>=42) && (iCol<=62) && (iStatus==1))
{
Action=2; //circle clicked?
actionbox(); //refrsh action text
}
if((iRow>=62) && (iRow<=82) && (iCol>=12) && (iCol<=32) && (iStatus==1))
{
Action=3; //line clicked?
actionbox(); //refrsh action text
}
if((iRow>=62) && (iRow<=82) && (iCol>=42) && (iCol<=62) && (iStatus==1))
{
Action=4; //bar clicked?
actionbox(); //refrsh action text
}
if((iRow>=92) && (iRow<=112) && (iCol>=12) && (iCol<=32) && (iStatus==1))
{
Action=5; //arc clicked?
actionbox(); //refrsh action text
}
if((iRow>=92) && (iRow<=112) && (iCol>=42) && (iCol<=62) && (iStatus==1))
{
Action=6; //pixel clicked?
actionbox(); //refrsh action text
}
if((iRow>=122) && (iRow<=142) && (iCol>=12) && (iCol<=32) && (iStatus==1))
{
Action=7; //pieslice clicked?
actionbox(); //refrsh action text
}
if((iRow>=122) && (iRow<=142) && (iCol>=42) && (iCol<=62) && (iStatus==1))
{
Action=8; //bar3d clicked?
actionbox(); //refrsh action text
}
if((iRow>=21) && (iRow<=435) && (iCol>=81) && (iCol<=640) && (iStatus==1))
{ //draw area clicked?
y1=iRow; //set clicked location as first point
x1=iCol;
if(Action!=6) //6 means pixel which not need dragging of mouse
{
while(iStatus!=0) //let user mouse drag until he leaves the button
mouse();
}
y2=iRow;//set that position as second point
x2=iCol;
draw(x1,y1,x2,y2); //draw selected shape using these two points
}
} //end of while(1) loop
} //end of code
Visit my another blog
Note: You request and feedback are welcome... :)
-Shailendra kumar shail@AVAcorp.biz
Reach me : mr.shailendra.shail@gmail.com
To run following code you may use Turboc3 or GCC compiler. It will draw a PaintBrush for you..
#include<stdio.h>
#include<conio.h>
#include<dos.h>
#include<stdlib.h>
#include<graphics.h>
#include<math.h>
#include<ctype.h>
/* Global variable declaration */
int iRow=0,iCol=0,iStatus=0;
int fColor=0,bColor=15,Action=1;
/**** Function Declaration ****/
void initmouse(void); //initialize mouse
void yesmouse(void); //show mouse
void nomouse(void); //hide mouse
void mouse(void); //get mouse postion and button status
void graphics_mode(void); //initialize graphic mode
void screen(void); //draw screen
void titlebar(void); //draw title bar
void toolbar(void); //draw toolbar
void colorbar(void); // draw color bars
void actionbox(void); //draw action box
void colorbox(void); // draw current colors box
void fbcolors(int x,int y); //change colors
void draw(int x1,int y1,int x2,int y2); //draw selected shape
/* Initialize Mouse */
void initmouse(void)
{
iRow = 0,iCol = 0,iStatus = 0;
asm { //means below code is assembly language
mov ax,0; //0 mean initialize
int 0x33; //0x33 in interrupt for mouse
}
}
/* Enable mouse */
void yesmouse(void)
{
asm {
mov ax,1; //1 mean show
int 0x33;
}
}
/* Disable mouse */
void nomouse(void)
{
asm {
mov ax,2; //2 mean hide
int 0x33;
}
}
/* Find Row , Column and Status */
void mouse(void)
{
asm {
mov ax,3; // 3 mean let mouse move
int 0x33;
mov iRow,dx; // get mouse position and click status
mov iCol,cx;
mov iStatus,bx;
}
}
void graphics_mode(void)
{
int gD = DETECT,gM = DETECT; //auto detect graphic driver and mode
initgraph(&gD,&gM,"c:\\tc\\bgi"); //this is to initialize graphics
}
void titlebar(void)
{
setfillstyle(1,1);
bar(0,0,640,20); //title bar in blue color
setcolor(15);
rectangle(621,3,636,18); //close box
line(621,3,636,18);
line(636,3,621,18);
settextstyle(1,0,1); //write title
outtextxy(295,0,"Musawwir");
}
void actionbox(void)
{
setfillstyle(1,7); //erase previous action text
bar(0,200,79,225);
setcolor(1);
settextstyle(2,0,5); //write current action text
if(Action==1) {outtextxy(10,200,"Rectangel");}
if(Action==2) {outtextxy(10,200,"Circle");}
if(Action==3) {outtextxy(10,200,"Line");}
if(Action==4) {outtextxy(10,200,"Bar");}
if(Action==5) {outtextxy(10,200,"Arc");}
if(Action==6) {outtextxy(10,200,"Pixels");}
if(Action==7) {outtextxy(10,200,"PieSlice");}
if(Action==8) {outtextxy(10,200,"Bar3D");}
}
void colorbox(void)
{
setfillstyle(1,bColor); //display current foreground color
bar(38,283,58,303);
setfillstyle(1,fColor); //display current background color
bar(20,265,40,285);
setcolor(0);
rectangle(38,283,58,303); //draw rectangles around them
rectangle(20,265,40,285);
}
void toolbar(void)
{
setfillstyle(1,7); //draw left gray area
bar(0,21,79,435);
setcolor(0);
rectangle(12,30,32,50); //draw 8 rectanlges for tools
rectangle(42,30,62,50);
rectangle(12,62,32,82);
rectangle(42,62,62,82);
rectangle(12,92,32,112);
rectangle(42,92,62,112);
rectangle(12,122,32,142);
rectangle(42,122,62,142);
rectangle(16,33,28,46); //draw shapes in those rectangel to show which action they are
circle(52,40,8);
line(15,80,27,64);
setfillstyle(1,0);
bar(46,64,58,80);
arc(22,102,0,170,5);
settextstyle(1,0,1);
outtextxy(52,85,".");
pieslice(22,132,0,170,5);
bar3d(45,126,56,140,3,1);
settextstyle(1,0,1); //write action heading
outtextxy(8,170,"Action");
actionbox();
setcolor(0);
settextstyle(1,0,1); // write color heading and draw a box around colors
outtextxy(8,230,"Colors");
rectangle(7,260,73,310);
colorbox();
}
void colorbar(void)
{
int ccount;
setfillstyle(1,7); //draw bottom gray area
bar(0,436,640,480);
for(ccount=0;ccount<16;ccount++) //draw 16 blocks with 16 colors
{ //2 times for fore and back color
setfillstyle(1,ccount);
bar(80+(ccount*20),441,80+(ccount*20)+15,456);
bar(80+(ccount*20),461,80+(ccount*20)+15,476);
setcolor(0);
rectangle(80+(ccount*20),441,80+(ccount*20)+15,456);
rectangle(80+(ccount*20),461,80+(ccount*20)+15,476);
}
settextstyle(2,0,5); //write their headings
outtextxy(2,441,"Fore Color");
outtextxy(2,461,"Back Color");
}
void screen(void)
{
setfillstyle(1,15); //draw white drawing area
bar(80,21,640,435);
titlebar(); //call other components to complete screens
toolbar();
colorbar();
}
void fbcolors(int x,int y) //x and y are mouse postion passed from main
{
if((y>=441) && (y<=456)) // first color boxes row?
{ //check which box and set fore color accordingly
if((x>=80) && (x<=95)) {fColor=0;}
if((x>=100) && (x<=115)) {fColor=1;}
if((x>=120) && (x<=135)) {fColor=2;}
if((x>=140) && (x<=155)) {fColor=3;}
if((x>=160) && (x<=175)) {fColor=4;}
if((x>=180) && (x<=195)) {fColor=5;}
if((x>=200) && (x<=215)) {fColor=6;}
if((x>=220) && (x<=235)) {fColor=7;}
if((x>=240) && (x<=255)) {fColor=8;}
if((x>=260) && (x<=275)) {fColor=9;}
if((x>=280) && (x<=295)) {fColor=10;}
if((x>=300) && (x<=315)) {fColor=11;}
if((x>=320) && (x<=335)) {fColor=12;}
if((x>=340) && (x<=355)) {fColor=13;}
if((x>=360) && (x<=375)) {fColor=14;}
if((x>=380) && (x<=395)) {fColor=15;}
}
if((y>=461) && (y<=476)) // second color boxes row?
{ //check which box and set back color accordingly
if((x>=80) && (x<=95)) {bColor=0;}
if((x>=100) && (x<=115)) {bColor=1;}
if((x>=120) && (x<=135)) {bColor=2;}
if((x>=140) && (x<=155)) {bColor=3;}
if((x>=160) && (x<=175)) {bColor=4;}
if((x>=180) && (x<=195)) {bColor=5;}
if((x>=200) && (x<=215)) {bColor=6;}
if((x>=220) && (x<=235)) {bColor=7;}
if((x>=240) && (x<=255)) {bColor=8;}
if((x>=260) && (x<=275)) {bColor=9;}
if((x>=280) && (x<=295)) {bColor=10;}
if((x>=300) && (x<=315)) {bColor=11;}
if((x>=320) && (x<=335)) {bColor=12;}
if((x>=340) && (x<=355)) {bColor=13;}
if((x>=360) && (x<=375)) {bColor=14;}
if((x>=380) && (x<=395)) {bColor=15;}
}
colorbox(); //refresh color boxes to reflect changes
}
void draw(int x1,int y1,int x2,int y2) //two mouse potions passed by main
{
int radius; //radius for arc,circle,bar3d
radius=sqrt(pow((x2-x1),2)+pow((y2-y1),2)); //calculate radius from distance formula
setcolor(fColor); //set fore color to forgound
setfillstyle(1,fColor); //set fill color to forgound
nomouse(); //hide mouse show mouse pointer wont come in b/w drawing
if(Action==1) rectangle(x1,y1,x2,y2); //draw recangel
if(Action==2) circle(x1,y1,radius); //draw circle
if(Action==3) line(x1,y1,x2,y2); //draw line
if(Action==4) bar(x1,y1,x2,y2); //drawbar
if(Action==5)
{
arc(x1+(x2-x1),y1+(y2-y1),0,180,radius/2);//draw arc using half raduis and use middle of two mouse position as center
}
if(Action==6)
{
putpixel(x1,y1,fColor); //put a pixel at current mouse position
}
if(Action==7)
{
pieslice(x1+(x2-x1),y1+(y2-y1),0,180,radius/2); //draw pieslice using half raduis and use middle of two mouse position as center
}
if(Action==8)
{
bar3d(x1,y1,x2,y2,radius/4,1);//draw bar3d using quarter raduis and 3d portion at top (denoted by 1)
}
titlebar(); //refresh other screen components to erase over drawn parts
toolbar();
colorbar();
yesmouse(); //show mouse again
}
void main(void)
{
int x1,y1,x2,y2; //for two mouse positions
initmouse(); //initialize mouse
graphics_mode(); //intialize graphics mode
screen(); //draw complete screen
yesmouse(); // show mouse
while(1) // unconditional loop, will be terminated on exit(0) statment which ends program
{
mouse(); //let mouse mouse and get mouse variables
if((iRow>=3) && (iRow<=18) && (iCol>=621) && (iCol<=636) && (iStatus==1))
{ //close box clicked?
closegraph();
exit(0); //end program
}
if((iRow>=441) && (iRow<=476) && (iCol>=80) && (iCol<=395) && (iStatus==1))
{ // color bar at bottom clicked?
fbcolors(iCol,iRow); //check which color clicked and set it
}
if((iRow>=30) && (iRow<=50) && (iCol>=12) && (iCol<=32) && (iStatus==1))
{ //rectangle clicked?
Action=1;
actionbox(); //refrsh action text
}
if((iRow>=30) && (iRow<=50) && (iCol>=42) && (iCol<=62) && (iStatus==1))
{
Action=2; //circle clicked?
actionbox(); //refrsh action text
}
if((iRow>=62) && (iRow<=82) && (iCol>=12) && (iCol<=32) && (iStatus==1))
{
Action=3; //line clicked?
actionbox(); //refrsh action text
}
if((iRow>=62) && (iRow<=82) && (iCol>=42) && (iCol<=62) && (iStatus==1))
{
Action=4; //bar clicked?
actionbox(); //refrsh action text
}
if((iRow>=92) && (iRow<=112) && (iCol>=12) && (iCol<=32) && (iStatus==1))
{
Action=5; //arc clicked?
actionbox(); //refrsh action text
}
if((iRow>=92) && (iRow<=112) && (iCol>=42) && (iCol<=62) && (iStatus==1))
{
Action=6; //pixel clicked?
actionbox(); //refrsh action text
}
if((iRow>=122) && (iRow<=142) && (iCol>=12) && (iCol<=32) && (iStatus==1))
{
Action=7; //pieslice clicked?
actionbox(); //refrsh action text
}
if((iRow>=122) && (iRow<=142) && (iCol>=42) && (iCol<=62) && (iStatus==1))
{
Action=8; //bar3d clicked?
actionbox(); //refrsh action text
}
if((iRow>=21) && (iRow<=435) && (iCol>=81) && (iCol<=640) && (iStatus==1))
{ //draw area clicked?
y1=iRow; //set clicked location as first point
x1=iCol;
if(Action!=6) //6 means pixel which not need dragging of mouse
{
while(iStatus!=0) //let user mouse drag until he leaves the button
mouse();
}
y2=iRow;//set that position as second point
x2=iCol;
draw(x1,y1,x2,y2); //draw selected shape using these two points
}
} //end of while(1) loop
} //end of code
Visit my another blog
- http://eclipsesoapexample.blogspot.com/
- http://j2eeflexcdb.blogspot.com/
- http://reverseengineeringdoc.blogspot.com/
Note: You request and feedback are welcome... :)
-Shailendra kumar shail@AVAcorp.biz
Reach me : mr.shailendra.shail@gmail.com
