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Program to show the implementation of None-or-All String Clipping Strategy (Text Clipping Example)

Posted By: Easy Tutor     Category: C++ Programming     Views: 5121

Write a program to show the implementation of None-or-All String Clipping Strategy (Text Clipping Example).

Code for Program to show the implementation of None-or-All String Clipping Strategy (Text Clipping Example) in C++ Programming

 # include <iostream.h>
 # include <graphics.h>
 # include    <conio.h>
 # include     <math.h>


 class WindowCoordinates
    {
       public:
      float x_min;
      float y_min;
      float x_max;
      float y_max;

      WindowCoordinates(constfloat x1,constfloat y1,
                          constfloat x2,constfloat y2)
         {
        x_min=x1;
        y_min=y1;
        x_max=x2;
        y_max=y2;
         }
    };


 void show_screen( );

 void show_clipped_text(const WindowCoordinates,constint,constint,
                 constchar*,constint,constint,constint);

 void Rectangle(constint,constint,constint,constint);
 void Line(constint,constint,constint,constint);


 int main( )
    {
       int driver=VGA;
       int mode=VGAHI;

       initgraph(&driver,&mode,"..\\Bgi");

       show_screen( );

       WindowCoordinates WC(180,140,470,340);

       setcolor(15);
     Rectangle(WC.x_min,WC.y_min,WC.x_max,WC.y_max);

       setcolor(7);
     settextstyle(0,0,2);
       outtextxy(160,160,"String 1");
       outtextxy(250,300,"String 2");

     settextstyle(0,1,2);
       outtextxy(350,120,"String 3");
       outtextxy(440,180,"String 4");

       char Key=NULL;

       do
      {
         Key=getch( );
      }
       while(Key!='C' && Key!='c');

       settextstyle(0,0,1);
     setcolor(0);
       outtextxy(163,450,"  Press 'C' to see the Clipped Text.  ");

    setcolor(15);
       outtextxy(165,450,"------                          -------");

     setcolor(12);
       outtextxy(213,450,"  Press any Key to exit.  ");

       setcolor(10);
     show_clipped_text(WC,160,160,"String 1",0,0,2);
     show_clipped_text(WC,250,300,"String 2",0,0,2);
     show_clipped_text(WC,350,120,"String 3",0,1,2);
     show_clipped_text(WC,440,180,"String 4",0,1,2);


       getch( );
       return 0;
    }


 /*************************************************************************///---------------------------  clip_line( )  ----------------------------///*************************************************************************/void show_clipped_text(const WindowCoordinates wc,constint x,constint y,
                   constchar* String,constint font_style,
                constint text_direction,constint font_size)
    {
       settextstyle(font_style,text_direction,font_size);

       int flag=0;
       int width=textwidth(String);
       int height=textheight(String);

       if(text_direction==0)
      {
         if(x>=wc.x_min && y>=wc.y_min &&
                 (x+width)<=wc.x_max && (y+height)<=wc.y_max)
        flag=1;
      }

       elseif(text_direction==1)
      {
         if(x>=wc.x_min && y>=wc.y_min &&
                 (x+height)<=wc.x_max && (y+width)<=wc.y_max)
        flag=1;
      }

       if(flag)
      outtextxy(x,y,String);
    }

 /*************************************************************************///---------------------------  Rectangle( )  ----------------------------///*************************************************************************/void Rectangle(constint x_1,constint y_1,constint x_2,constint y_2)
    {
       Line(x_1,y_1,x_2,y_1);
       Line(x_2,y_1,x_2,y_2);
       Line(x_2,y_2,x_1,y_2);
       Line(x_1,y_2,x_1,y_1);
    }

 /*************************************************************************///-------------------------------  Line( )  -----------------------------///*************************************************************************/void Line(constint x_1,constint y_1,constint x_2,constint y_2)
    {
       int color=getcolor( );

       int x1=x_1;
       int y1=y_1;

       int x2=x_2;
       int y2=y_2;

       if(x_1>x_2)
      {
         x1=x_2;
         y1=y_2;

         x2=x_1;
         y2=y_1;
      }

       int dx=abs(x2-x1);
       int dy=abs(y2-y1);
       int inc_dec=((y2>=y1)?1:-1);

       if(dx>dy)
      {
         int two_dy=(2*dy);
         int two_dy_dx=(2*(dy-dx));
         int p=((2*dy)-dx);

         int x=x1;
         int y=y1;

         putpixel(x,y,color);

         while(x<x2)
        {
           x++;

           if(p<0)
              p+=two_dy;

           else
              {
             y+=inc_dec;
             p+=two_dy_dx;
              }

           putpixel(x,y,color);
        }
      }

       else
      {
         int two_dx=(2*dx);
         int two_dx_dy=(2*(dx-dy));
         int p=((2*dx)-dy);

         int x=x1;
         int y=y1;

         putpixel(x,y,color);

         while(y!=y2)
        {
           y+=inc_dec;

           if(p<0)
              p+=two_dx;

           else
              {
             x++;
             p+=two_dx_dy;
              }

           putpixel(x,y,color);
        }
      }
    }

 /*************************************************************************///--------------------------  show_screen( )  ---------------------------///*************************************************************************/void show_screen( )
    {
       setfillstyle(1,1);
     bar(160,26,455,38);

       settextstyle(0,0,1);
     setcolor(15);
       outtextxy(5,5,"******************************************************************************");
       outtextxy(5,17,"*-**************************************************************************-*");
       outtextxy(5,29,"*-----------------                                        -------------------*");
       outtextxy(5,41,"*-**************************************************************************-*");
       outtextxy(5,53,"*-**************************************************************************-*");

     setcolor(11);
       outtextxy(168,29,"Non-or-All String Clipping Strategy");

     setcolor(15);

       for(int count=0;count<=30;count++)
          outtextxy(5,(65+(count*12)),"*-*                                                                        *-*");

       outtextxy(5,438,"*-**************************************************************************-*");
       outtextxy(5,450,"*-------------------                                      -------------------*");
       outtextxy(5,462,"******************************************************************************");

     setcolor(12);
       outtextxy(163,450,"  Press 'C' to see the Clipped Text.  ");
    }

  
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Easy Tutor
Easy Tutor author of Program to show the implementation of None-or-All String Clipping Strategy (Text Clipping Example) is from United States. Easy Tutor says

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