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Last change
on this file since 338 was 312, checked in by hugh, 26 years ago |
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Added rectangle.h to remove dep. within IBM classes
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File size:
2.0 KB
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| 1 | #ifndef __DDRectandle
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| 2 | #define __DDRectandle
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| 3 |
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| 4 | #include <ibase.hpp>
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| 5 |
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| 6 | class DDRectangle : public IBase {
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| 7 | typedef IBase
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| 8 | Inherited;
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| 9 | public:
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| 10 | /*------------------------------ Related Types -------------------------------*/
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| 11 | typedef long Coord;
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| 12 |
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| 13 | /*------------------------------- Constructors -------------------------------*/
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| 14 | DDRectangle ( );
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| 15 |
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| 16 |
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| 17 | DDRectangle ( Coord point1X,
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| 18 | Coord point1Y,
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| 19 | Coord point2X,
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| 20 | Coord point2Y );
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| 21 |
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| 22 |
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| 23 | /*------------------------------- Comparisons --------------------------------*/
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| 24 | Boolean
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| 25 | operator == ( const DDRectangle& rectangle ) const,
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| 26 | operator != ( const DDRectangle& rectangle ) const;
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| 27 |
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| 28 | /*--------------------------------- Testing ----------------------------------*/
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| 29 | Boolean
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| 30 | intersects ( const DDRectangle& rectangle ) const;
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| 31 |
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| 32 | Coord
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| 33 | width() const,
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| 34 | height() const;
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| 35 |
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| 36 | /*--------------------------------- Synonyms ---------------------------------
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| 37 |
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| 38 | Coord
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| 39 | bottom ( ) const,
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| 40 | left ( ) const,
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| 41 | right ( ) const,
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| 42 | top ( ) const;
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| 43 | */
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| 44 |
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| 45 | private:
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| 46 | long lTop,lLeft;
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| 47 | long lBottom,lRight;
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| 48 | }; // class DDRectangle
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| 49 |
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| 50 | DDRectangle :: DDRectangle ( Coord y1,
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| 51 | Coord x1,
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| 52 | Coord y2,
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| 53 | Coord x2 )
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| 54 | {
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| 55 | lTop = y1;
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| 56 | lLeft = x1;
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| 57 | lBottom = y2;
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| 58 | lRight = x2;
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| 59 | }
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| 60 |
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| 61 | IBase::Boolean DDRectangle :: operator == ( const DDRectangle &aRect ) const
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| 62 | {
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| 63 | return ( lTop == aRect.lTop && lLeft == aRect.lLeft
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| 64 | &&
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| 65 | lBottom == aRect.lBottom && lRight == aRect.lRight);
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| 66 | }
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| 67 | IBase::Boolean DDRectangle :: operator != ( const DDRectangle& aRect ) const
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| 68 | {
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| 69 | return !( *this == aRect );
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| 70 | }
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| 71 | IBase::Boolean DDRectangle :: intersects ( const DDRectangle &aRect ) const
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| 72 | {
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| 73 | return ( lTop < aRect.lBottom && lLeft<aRect.lRight
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| 74 | &&
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| 75 | aRect.lTop < lBottom && aRect.lLeft < lRight );
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| 76 | }
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| 77 |
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| 78 | DDRectangle::Coord DDRectangle :: width ( ) const
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| 79 | {
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| 80 | return ( lRight - lLeft);
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| 81 | }
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| 82 |
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| 83 | DDRectangle::Coord DDRectangle :: height ( ) const
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| 84 | {
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| 85 | return ( lBottom - lTop);
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| 86 | }
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| 87 |
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| 88 | #endif
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