pdf_test_utils.cpp File Reference

#include <algorithm>
#include <qa_utils/file_utils.h>
#include <qa_utils/pdf_test_utils.h>
#include <gal/color4d.h>
#include <wx/filefn.h>
#include <wx/ffile.h>
#include <wx/utils.h>
#include <wx/image.h>
#include <wx/imagpng.h>
#include <zlib.h>

Go to the source code of this file.

Functions
TEXT_ATTRIBUTES	BuildTextAttributes (int aSizeIu, int aStrokeWidth, bool aBold, bool aItalic)
	Build a commonly used set of text attributes for plotting text in tests.
std::unique_ptr< KIFONT::STROKE_FONT >	LoadStrokeFontUnique ()
	Load the default stroke font and return a unique_ptr for RAII deletion.
static void	append_decompressed_streams (std::string &aBuffer)
bool	ReadPdfWithDecompressedStreams (const wxString &aPdfPath, std::string &aOutBuffer)
	Read a PDF file and append best-effort decompressed contents of any Flate streams to the returned buffer to make text searches easier.
int	CountOccurrences (const std::string &aHaystack, const std::string &aNeedle)
	Count occurrences of a substring in a string (overlapping allowed).
bool	RasterizePdfCountDark (const wxString &aPdfPath, int aDpi, int aNearWhiteThresh, long &aOutDarkPixels)
	Rasterize a PDF page to PNG using pdftoppm if available and count non-near-white pixels.

Function Documentation

append_decompressed_streams()

static void append_decompressed_streams ( std::string & aBuffer )

static

Definition at line 66 of file pdf_test_utils.cpp.

Referenced by ReadPdfWithDecompressedStreams().

BuildTextAttributes()

TEXT_ATTRIBUTES BuildTextAttributes	(	int	aSizeIu = 3000,
		int	aStrokeWidth = 300,
		bool	aBold = false,
		bool	aItalic = false )

Build a commonly used set of text attributes for plotting text in tests.

Parameters

aSizeIu	Size in internal units (both X and Y)
aStrokeWidth	Stroke width in internal units (0 for outline fonts)
aBold	Bold flag
aItalic	Italic flag

Definition at line 46 of file pdf_test_utils.cpp.

References ANGLE_0, GR_TEXT_H_ALIGN_LEFT, GR_TEXT_V_ALIGN_BOTTOM, TEXT_ATTRIBUTES::m_Angle, TEXT_ATTRIBUTES::m_Bold, TEXT_ATTRIBUTES::m_Halign, TEXT_ATTRIBUTES::m_Italic, TEXT_ATTRIBUTES::m_Mirrored, TEXT_ATTRIBUTES::m_Multiline, TEXT_ATTRIBUTES::m_Size, TEXT_ATTRIBUTES::m_StrokeWidth, and TEXT_ATTRIBUTES::m_Valign.

Referenced by BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), and BOOST_AUTO_TEST_CASE().

CountOccurrences()

int CountOccurrences	(	const std::string &	aHaystack,
		const std::string &	aNeedle )

Count occurrences of a substring in a string (overlapping allowed).

Definition at line 159 of file pdf_test_utils.cpp.

Referenced by BOOST_AUTO_TEST_CASE(), and BOOST_AUTO_TEST_CASE().

LoadStrokeFontUnique()

std::unique_ptr< KIFONT::STROKE_FONT > LoadStrokeFontUnique

(

)

Load the default stroke font and return a unique_ptr for RAII deletion.

Definition at line 61 of file pdf_test_utils.cpp.

References KIFONT::STROKE_FONT::LoadFont().

Referenced by BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), and BOOST_AUTO_TEST_CASE().

RasterizePdfCountDark()

bool RasterizePdfCountDark	(	const wxString &	aPdfPath,
		int	aDpi,
		int	aNearWhiteThresh,
		long &	aOutDarkPixels )

Rasterize a PDF page to PNG using pdftoppm if available and count non-near-white pixels.

Parameters

aPdfPath	Input PDF path.
aDpi	Rasterization DPI.
aNearWhiteThresh	Threshold for each RGB channel to consider white (e.g., 240).
aOutDarkPixels	Output: number of pixels darker than threshold.

Returns

true if rasterization succeeded and dark pixel count is valid. False if tool not available or conversion failed.

Definition at line 179 of file pdf_test_utils.cpp.

References KI_TEST::SCOPED_TEMP_DIR::ChildPathStr().

Referenced by BOOST_AUTO_TEST_CASE().

ReadPdfWithDecompressedStreams()

bool ReadPdfWithDecompressedStreams	(	const wxString &	aPdfPath,
		std::string &	aOutBuffer )

Read a PDF file and append best-effort decompressed contents of any Flate streams to the returned buffer to make text searches easier.

Returns

true on success; false if file cannot be opened or read.

Definition at line 141 of file pdf_test_utils.cpp.

References append_decompressed_streams().

Referenced by BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), BOOST_AUTO_TEST_CASE(), and BOOST_AUTO_TEST_CASE().