127 lines
4.0 KiB
C++
127 lines
4.0 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: tests/geometry/rect.cpp
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// Purpose: wxRect unit test
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// Author: Vadim Zeitlin
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// Created: 2004-12-11
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// Copyright: (c) 2004 wxWindows
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///////////////////////////////////////////////////////////////////////////////
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "testprec.h"
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#ifndef WX_PRECOMP
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#include "wx/gdicmn.h"
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#endif // WX_PRECOMP
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#include "wx/iosfwrap.h"
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#include "asserthelper.h"
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// ----------------------------------------------------------------------------
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// tests
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// ----------------------------------------------------------------------------
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TEST_CASE("wxRect::CentreIn", "[rect]")
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{
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typedef wxRect R;
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CHECK( R(0, 0, 10, 10).CentreIn(R(0, 0, 100, 100)) == R(45, 45, 10, 10) );
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CHECK( R(0, 0, 20, 20).CentreIn(R(0, 0, 10, 10)) == R(-5, -5, 20, 20) );
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R r(-10, -10, 20, 20);
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r.MakeCenteredIn(R(0, 0, 100, 100), wxHORIZONTAL);
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CHECK( r == R(40, -10, 20, 20) );
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}
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TEST_CASE("wxRect::InflateDeflate", "[rect]")
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{
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// This is the rectangle from the example in the documentation of wxRect::Inflate().
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const wxRect r1(10, 10, 20, 40);
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CHECK(r1.Inflate( 10, 10)==wxRect( 0, 0, 40, 60));
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CHECK(r1.Inflate( 20, 30)==wxRect(-10, -20, 60, 100));
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CHECK(r1.Inflate(-10, -10)==wxRect( 20, 20, 0, 20));
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CHECK(r1.Inflate(-15, -15)==wxRect( 20, 25, 0, 10));
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CHECK(r1.Inflate( 10, 10)==r1.Deflate(-10, -10));
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CHECK(r1.Inflate( 20, 30)==r1.Deflate(-20, -30));
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CHECK(r1.Inflate(-10, -10)==r1.Deflate( 10, 10));
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CHECK(r1.Inflate(-15, -15)==r1.Deflate( 15, 15));
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}
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TEST_CASE("wxRect::Operators", "[rect]")
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{
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// test + operator which works like Union but does not ignore empty rectangles
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static const struct RectData
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{
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int x1, y1, w1, h1;
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int x2, y2, w2, h2;
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int x, y, w, h;
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wxRect GetFirst() const { return wxRect(x1, y1, w1, h1); }
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wxRect GetSecond() const { return wxRect(x2, y2, w2, h2); }
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wxRect GetResult() const { return wxRect(x, y, w, h); }
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} s_rects[] =
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{
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 2, 2 },
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{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
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{ 1, 1, 1, 1, 4, 4, 1, 1, 1, 1, 4, 4 },
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{ 1, 1, 2, 2, 4, 4, 1, 1, 1, 1, 4, 4 },
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{ 2, 2, 2, 2, 4, 4, 4, 4, 2, 2, 6, 6 },
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{ 1, 1, 4, 4, 4, 4, 1, 1, 1, 1, 4, 4 }
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};
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for ( size_t n = 0; n < WXSIZEOF(s_rects); n++ )
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{
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const RectData& data = s_rects[n];
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CHECK( (data.GetFirst() + data.GetSecond()) == data.GetResult() );
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CHECK( (data.GetSecond() + data.GetFirst()) == data.GetResult() );
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}
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// test operator*() which returns the intersection of two rectangles
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wxRect r1 = wxRect(0, 2, 3, 4);
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wxRect r2 = wxRect(1, 2, 7, 8);
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r1 *= r2;
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CHECK(wxRect(1, 2, 2, 4) == r1);
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CHECK( (r1 * wxRect()).IsEmpty() );
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}
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TEST_CASE("wxRect::Union", "[rect]")
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{
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static const struct RectData
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{
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int x1, y1, w1, h1;
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int x2, y2, w2, h2;
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int x, y, w, h;
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wxRect GetFirst() const { return wxRect(x1, y1, w1, h1); }
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wxRect GetSecond() const { return wxRect(x2, y2, w2, h2); }
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wxRect GetResult() const { return wxRect(x, y, w, h); }
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} s_rects[] =
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{
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 },
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{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
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{ 1, 1, 1, 1, 4, 4, 1, 1, 1, 1, 4, 4 },
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{ 1, 1, 2, 2, 4, 4, 1, 1, 1, 1, 4, 4 },
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{ 2, 2, 2, 2, 4, 4, 4, 4, 2, 2, 6, 6 },
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{ 1, 1, 4, 4, 4, 4, 1, 1, 1, 1, 4, 4 }
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};
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for ( size_t n = 0; n < WXSIZEOF(s_rects); n++ )
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{
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const RectData& data = s_rects[n];
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CHECK( data.GetFirst().Union(data.GetSecond()) == data.GetResult() );
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CHECK( data.GetSecond().Union(data.GetFirst()) == data.GetResult() );
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}
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}
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