Last change
on this file since 352 was 352, checked in by hugh, 26 years ago |
Changhed from Isequence to DPA for managing rectangles and surfaces
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File size:
920 bytes
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1 | #include "rectangle.h"
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2 |
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3 | DDRectangle::DDRectangle ( Coord y1,
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4 | Coord x1,
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5 | Coord y2,
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6 | Coord x2 )
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7 | {
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8 | lTop = y1;
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9 | lLeft = x1;
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10 | lBottom = y2;
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11 | lRight = x2;
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12 | }
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13 |
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14 | IBase::Boolean DDRectangle::operator == ( const DDRectangle &aRect ) const
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15 | {
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16 | return ( lTop == aRect.lTop && lLeft == aRect.lLeft
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17 | &&
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18 | lBottom == aRect.lBottom && lRight == aRect.lRight);
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19 | }
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20 | IBase::Boolean DDRectangle::operator != ( const DDRectangle& aRect ) const
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21 | {
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22 | return !( *this == aRect );
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23 | }
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24 | IBase::Boolean DDRectangle::intersects ( const DDRectangle &aRect ) const
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25 | {
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26 | return ( lTop < aRect.lBottom && lLeft<aRect.lRight
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27 | &&
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28 | aRect.lTop < lBottom && aRect.lLeft < lRight );
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29 | }
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30 |
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31 | DDRectangle::Coord DDRectangle::width ( ) const
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32 | {
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33 | return ( lRight - lLeft);
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34 | }
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35 |
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36 | DDRectangle::Coord DDRectangle::height ( ) const
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37 | {
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38 | return ( lBottom - lTop);
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39 | }
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40 |
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