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Fr4nz D13trich 2025-11-22 13:58:55 +01:00
parent 4af19165ec
commit 68073add76
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libs/drape_frontend/drape_frontend_tests/navigator_test.cpp Normal file
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#include "testing/testing.hpp"
#include "drape_frontend/navigator.hpp"
#include "drape_frontend/visual_params.hpp"
#include "geometry/screenbase.hpp"
#include <cmath>
// -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
//
// 7 +-----------------------------------------------+
// | |
// 6 | |
// | |
// 5 | |
// | |
// 4 | +-----------------------+ |
// | | | |
// 3 | | | |
// | | | |
// 2 | | | |
// | | | |
// 1 | | a B<-------b | |
// | | | |
// 0 | +-----------------------+ |
// | |
//-1 +-----------------------------------------------+
UNIT_TEST(Navigator_Scale2Points)
{
df::VisualParams::Init(1.0, 1024);
df::Navigator navigator;
navigator.OnSize(200, 100);
navigator.SetFromRect(m2::AnyRectD(m2::RectD(0, 0, 8, 4)));
ScreenBase const & screen = navigator.Screen();
TEST_EQUAL(screen.ClipRect(), m2::RectD(0, 0, 8, 4), ());
navigator.StartScale(screen.GtoP(m2::PointD(1, 1)), screen.GtoP(m2::PointD(7, 1)));
navigator.StopScale(screen.GtoP(m2::PointD(1, 1)), screen.GtoP(m2::PointD(4, 1)));
TEST_EQUAL(screen.ClipRect(), m2::RectD(-1, -1, 15, 7), ());
}
namespace
{
void CheckNavigator(df::Navigator const & nav)
{
typedef m2::PointD P;
m2::RectD clipR = nav.Screen().ClipRect();
P arr[] = {clipR.LeftTop(), clipR.RightTop(), clipR.RightBottom(), clipR.LeftBottom(), clipR.Center()};
for (size_t i = 0; i < ARRAY_SIZE(arr); ++i)
{
P const & pxP = arr[i];
P const gP = nav.PtoG(pxP);
P const pxP2 = nav.GtoP(gP);
TEST(AlmostEqualAbs(pxP.x, pxP2.x, 0.00001), (pxP.x, pxP2.x));
TEST(AlmostEqualAbs(pxP.y, pxP2.y, 0.00001), (pxP.y, pxP2.y));
}
}
} // namespace
UNIT_TEST(Navigator_G2P_P2G)
{
df::VisualParams::Init(1.0, 1024);
df::Navigator navigator;
// Initialize.
navigator.OnSize(200, 100);
m2::PointD center = navigator.Screen().PixelRect().Center();
navigator.SetFromRect(m2::AnyRectD(m2::RectD(0, 0, 8, 4)));
TEST_EQUAL(navigator.Screen().ClipRect(), m2::RectD(0, 0, 8, 4), ());
CheckNavigator(navigator);
navigator.Scale(center, 3.0);
CheckNavigator(navigator);
navigator.Scale(center, 1 / 3.0);
CheckNavigator(navigator);
}