ruler-tests.cc File Reference

#include <cmath>
#include <gtest/gtest.h>
#include "ruler.hh"

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Functions
	EXPECT_TRUE (g_signal_handler_find(drawingArea, mask, drawID, 0, nullptr, nullptr, ruler.get()) !=0)
	EXPECT_TRUE (g_signal_handler_find(drawingArea, mask, sizeAllocateID, 0, nullptr, nullptr, ruler.get()) !=0)
void	testCorrectIntervalForMinWidth (double lowerLimit, double upperLimit, int expectedInterval)

Variables
GtkWidget *	drawingArea = gtk_drawing_area_new()
Ruler::Ptr const	ruler = Ruler::create(Ruler::HORIZONTAL, drawingArea)
auto	mask = static_cast<GSignalMatchType>(G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DATA)
const guint	drawID = g_signal_lookup("draw", GTK_TYPE_DRAWING_AREA)
const guint	sizeAllocateID = g_signal_lookup("size-allocate", GTK_TYPE_DRAWING_AREA)

Function Documentation

EXPECT_TRUE() [1/2]

EXPECT_TRUE

(

g_signal_handler_find(drawingArea, mask, drawID, 0, nullptr, nullptr, ruler.get()) !

= 0

)

Referenced by anonymous_namespace{determine-size-test.cc}::ResizablePresentationInterfaceStub::CheckEmpty(), for(), and ProgressInterfaceMultiplexer_Tests::ProgressInterfaceMultiplexer_Tests().

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EXPECT_TRUE() [2/2]

EXPECT_TRUE

(

g_signal_handler_find(drawingArea, mask, sizeAllocateID, 0, nullptr, nullptr, ruler.get()) !

= 0

)

testCorrectIntervalForMinWidth()

void testCorrectIntervalForMinWidth	(	double	lowerLimit,
		double	upperLimit,
		int	expectedInterval
	)

Calculates the minimum pixel width for the ruler such that the interval between major ticks equals expectedInterval.

Parameters

lowerLimit	Lower limit of the ruler range.
upperLimit	Upper limit of the ruler range.
expectedInterval	The expected interval.

{
  const double rangeSize = ceil(upperLimit - lowerLimit);
  // The minimum pixel width of the ruler such the interval can be expectedInterval
  const int minRulerWidth = floor(rangeSize / static_cast<double>(expectedInterval) * RulerCalculations::MIN_SPACE_MAJORTICKS);
  EXPECT_EQ(expectedInterval, RulerCalculations::calculateInterval(lowerLimit, upperLimit, minRulerWidth));
}

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Variable Documentation

drawID

const guint drawID = g_signal_lookup("draw", GTK_TYPE_DRAWING_AREA)

drawingArea

GtkWidget * drawingArea = gtk_drawing_area_new()

Referenced by create_scroom().

mask

auto mask = static_cast<GSignalMatchType>(G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DATA)

ruler

Ruler::Ptr const ruler = Ruler::create(Ruler::HORIZONTAL, drawingArea)

Referenced by Ruler::create(), Ruler::drawCallback(), and Ruler::sizeAllocateCallback().

sizeAllocateID

const guint sizeAllocateID = g_signal_lookup("size-allocate", GTK_TYPE_DRAWING_AREA)