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- // Borland C++ - (C) Copyright 1991 by Borland International
-
- /* VPOINT.CPP--Example from Getting Started */
-
- // VPOINT.CPP contains the definitions for the Point and Location
- // classes that are declared in the file vpoint.h
-
- #include "vpoint.h"
- #include <graphics.h>
-
- // member functions for the Location class
- Location::Location(int InitX, int InitY) {
- X = InitX;
- Y = InitY;
- };
-
- int Location::GetX(void) {
- return X;
- };
-
- int Location::GetY(void) {
- return Y;
- };
-
- // member functions for the Point class: These assume
- // the main program has initialized the graphics system
-
- Point::Point(int InitX, int InitY) : Location(InitX,InitY) {
- Visible = false; // make invisible by default
- };
-
- void Point::Show(void) {
- Visible = true;
- putpixel(X, Y, getcolor()); // uses default color
- };
-
- void Point::Hide(void) {
- Visible = false;
- putpixel(X, Y, getbkcolor()); // uses background color to erase
- };
-
- Boolean Point::IsVisible(void) {
- return Visible;
- };
-
- void Point::MoveTo(int NewX, int NewY) {
- Hide(); // make current point invisible
- X = NewX; // change X and Y coordinates to new location
- Y = NewY;
- Show(); // show point at new location
- };
-
-