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mirror of https://gitlab.com/kicad/code/kicad.git synced 2024-11-25 00:35:01 +00:00
kicad/qa/tests/common/test_bitmap_base.cpp
John Beard 215533f31a Unify flip direction handling
There was a gentle mish-mash of booleans, some with
true being left/right and some up/down, and some functions that
can flip in both axes (which is never actually done, and doesn't
really make geometric sense).

Replace all this with the FLIP_DIRECTION enum class, which makes
the intention completely unambiguous.

This also then allows a small scattering of simplifications,
because everything takes the same type and you don't have to
fiddle booleans to fit.
2024-09-27 17:13:13 +01:00

248 lines
7.2 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2023 KiCad Developers, see AUTHORS.TXT for contributors.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/**
* @file
* Test suite for BITMAP_BASE
*/
#include <qa_utils/wx_utils/unit_test_utils.h>
// Code under test
#include <bitmap_base.h>
#include "wximage_test_utils.h"
#include <wx/mstream.h>
// Dummy PNG image 8x8, 4 tiles:
//
// green, black,
// red, blue
// (the black tile is a circle, otherwise older wx's seem to crash)
static const std::vector<unsigned char> png_data_4tile = { //
0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A, 0x00, 0x00, 0x00, 0x0D, 0x49, 0x48, 0x44, 0x52,
0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08, 0x08, 0x06, 0x00, 0x00, 0x00, 0xC4, 0x0F, 0xBE,
0x8B, 0x00, 0x00, 0x00, 0x04, 0x73, 0x42, 0x49, 0x54, 0x08, 0x08, 0x08, 0x08, 0x7C, 0x08, 0x64,
0x88, 0x00, 0x00, 0x00, 0x09, 0x70, 0x48, 0x59, 0x73, 0x00, 0x00, 0x0E, 0xC4, 0x00, 0x00, 0x0E,
0xC4, 0x01, 0x95, 0x2B, 0x0E, 0x1B, 0x00, 0x00, 0x00, 0x19, 0x74, 0x45, 0x58, 0x74, 0x53, 0x6F,
0x66, 0x74, 0x77, 0x61, 0x72, 0x65, 0x00, 0x77, 0x77, 0x77, 0x2E, 0x69, 0x6E, 0x6B, 0x73, 0x63,
0x61, 0x70, 0x65, 0x2E, 0x6F, 0x72, 0x67, 0x9B, 0xEE, 0x3C, 0x1A, 0x00, 0x00, 0x00, 0x40, 0x49,
0x44, 0x41, 0x54, 0x18, 0x95, 0xA5, 0xCD, 0x4B, 0x0A, 0xC0, 0x20, 0x14, 0x43, 0xD1, 0x63, 0x77,
0xA7, 0xDD, 0xFF, 0x06, 0xD4, 0x7D, 0x3C, 0x07, 0x95, 0x42, 0x3F, 0xE0, 0xC0, 0x84, 0x0C, 0x02,
0xE1, 0x86, 0x78, 0x99, 0x13, 0x1D, 0x0D, 0xC5, 0xCF, 0xA0, 0x21, 0x66, 0xEA, 0x61, 0xA9, 0x2F,
0xA1, 0x4C, 0x4A, 0x45, 0x4E, 0x71, 0xA1, 0x6E, 0xA5, 0x67, 0xB5, 0xBC, 0xD8, 0x1F, 0x0C, 0xA7,
0xFD, 0x23, 0x67, 0x70, 0xDA, 0x89, 0xA2, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4E, 0x44, 0xAE,
0x42, 0x60, 0x82
};
///< 4tile is an 8x8 image
static const VECTOR2I size_4tile{ 8, 8 };
static const KIGFX::COLOR4D col_red{ 1.0, 0.0, 0.0, 1.0 };
static const KIGFX::COLOR4D col_green{ 0.0, 1.0, 0.0, 1.0 };
static const KIGFX::COLOR4D col_blue{ 0.0, 0.0, 1.0, 1.0 };
static const KIGFX::COLOR4D col_black{ 0.0, 0.0, 0.0, 1.0 };
class TEST_BITMAP_BASE_FIXTURE
{
public:
TEST_BITMAP_BASE_FIXTURE()
{
wxMemoryInputStream mis( png_data_4tile.data(), png_data_4tile.size() );
bool ok = m_4tile.ReadImageFile( mis );
// this is needed for most tests and can fail if the image handlers
// are not initialised (e.g. with wxInitAllImageHandlers)
BOOST_REQUIRE( ok );
// use an easier scale for test purposes
m_4tile.SetPixelSizeIu( 2.0 );
m_4tile.SetScale( 5.0 );
}
/*
* Simple image of 4 coloured tiles
*/
BITMAP_BASE m_4tile;
};
/**
* Declare the test suite
*/
BOOST_FIXTURE_TEST_SUITE( BitmapBase, TEST_BITMAP_BASE_FIXTURE )
/**
* Check basic properties of a populated image
*/
BOOST_AUTO_TEST_CASE( Empty )
{
BITMAP_BASE empty;
// Const to test we can get this data from a const object
const BITMAP_BASE& cempty = empty;
const int expected_ppi = 300;
BOOST_CHECK_EQUAL( cempty.GetImageData(), nullptr );
BOOST_CHECK_EQUAL( cempty.GetPPI(), expected_ppi );
BOOST_CHECK_EQUAL( cempty.GetScale(), 1.0 );
BOOST_CHECK_EQUAL( cempty.GetPixelSizeIu(), 254000.0 / expected_ppi );
// can do this on an empty image
empty.Rotate( true );
empty.Mirror( FLIP_DIRECTION::TOP_BOTTOM );
}
/**
* Check we can validly copy an empty bitmap
*/
BOOST_AUTO_TEST_CASE( EmptyCopy )
{
BITMAP_BASE empty;
BITMAP_BASE copied = empty;
// should still have nothing in it
BOOST_CHECK_EQUAL( copied.GetImageData(), nullptr );
}
struct TEST_PIXEL_CASE
{
int m_x;
int m_y;
KIGFX::COLOR4D m_color;
};
/**
* Check basic properties of the populated images
*/
BOOST_AUTO_TEST_CASE( BasicProps )
{
// make sure we can do all this to a const img
const BITMAP_BASE& img = m_4tile;
// have "some" image data
BOOST_REQUIRE_NE( img.GetImageData(), nullptr );
// still default props here
const int expected_ppi = 94;
BOOST_CHECK_EQUAL( img.GetPPI(), expected_ppi );
BOOST_CHECK_EQUAL( img.GetScale(), 5.0 );
// we changed this, make sure it's right
BOOST_CHECK_EQUAL( img.GetPixelSizeIu(), 2.0 );
BOOST_CHECK( img.GetSizePixels() == size_4tile );
BOOST_CHECK( img.GetSize() == size_4tile * 10 );
const BOX2I bb = img.GetBoundingBox();
BOOST_CHECK( bb.GetPosition() == VECTOR2I( -40, -40 ) );
BOOST_CHECK( bb.GetEnd() == VECTOR2I( 40, 40 ) );
}
/**
* Check the image is right
*/
BOOST_AUTO_TEST_CASE( BasicImage )
{
const wxImage* img_data = m_4tile.GetImageData();
BOOST_REQUIRE_NE( img_data, nullptr );
// green, black,
// red, blue
const std::vector<TEST_PIXEL_CASE> exp_pixels = {
{ 1, 1, col_green },
{ 6, 1, col_black },
{ 1, 6, col_red },
{ 6, 6, col_blue },
};
for( const auto& c : exp_pixels )
{
BOOST_CHECK_PREDICATE(
KI_TEST::IsImagePixelOfColor, ( *img_data )( c.m_x )( c.m_y )( c.m_color ) );
}
}
/**
* Check the image is right after rotating
*/
BOOST_AUTO_TEST_CASE( RotateImage )
{
// Note the parameter name is wrong here, true is clockwise
m_4tile.Rotate( false );
const wxImage* img_data = m_4tile.GetImageData();
BOOST_REQUIRE_NE( img_data, nullptr );
// black, blue,
// green, red
const std::vector<TEST_PIXEL_CASE> exp_pixels = {
{ 1, 1, col_black },
{ 6, 1, col_blue },
{ 1, 6, col_green },
{ 6, 6, col_red },
};
for( const auto& c : exp_pixels )
{
BOOST_CHECK_PREDICATE(
KI_TEST::IsImagePixelOfColor, ( *img_data )( c.m_x )( c.m_y )( c.m_color ) );
}
}
/**
* Check the image is right after mirroring
*/
BOOST_AUTO_TEST_CASE( MirrorImage )
{
m_4tile.Mirror( FLIP_DIRECTION::TOP_BOTTOM );
const wxImage* img_data = m_4tile.GetImageData();
BOOST_REQUIRE_NE( img_data, nullptr );
// red, blue
// green, black
const std::vector<TEST_PIXEL_CASE> exp_pixels = {
{ 1, 1, col_red },
{ 6, 1, col_blue },
{ 1, 6, col_green },
{ 6, 6, col_black },
};
for( const auto& c : exp_pixels )
{
BOOST_CHECK_PREDICATE(
KI_TEST::IsImagePixelOfColor, ( *img_data )( c.m_x )( c.m_y )( c.m_color ) );
}
}
BOOST_AUTO_TEST_SUITE_END()