Method hasAlpha

test/map_t.cpp:224–291

void MapTest::hasAlpha()
{
	Map map;
	MapView view{ &map };
	QVERIFY(map.loadFrom(examples_dir.absoluteFilePath(QStringLiteral("complete map.omap")), &view));
	QVERIFY(!map.hasAlpha());
	
	QVERIFY(map.getNumParts() > 0);
	QVERIFY(map.getPart(0)->getNumObjects() > 0);
	
	auto* symbol = [&map]() -> Symbol* {
	               auto* symbol = map.getPart(0)->getObject(0)->getSymbol();
	               return symbol ? map.getSymbol(map.findSymbolIndex(symbol)) : nullptr;
	}();
	QVERIFY(symbol);
	
	auto* color = [&map, symbol]() -> MapColor* {
	              auto* color = symbol->guessDominantColor();
	              return color ? map.getMapColor(map.findColorIndex(color)) : nullptr;
	}();
	QVERIFY(color);
	
	color->setOpacity(0.5);
	QVERIFY(map.hasAlpha());
	
	color->setOpacity(0);
	QVERIFY(!map.hasAlpha());
	
	color->setOpacity(0.5);
	for (int i = 0; i < map.getNumSymbols(); ++i)
	{
		if (map.getSymbol(i)->containsColor(color))
			map.getSymbol(i)->setHidden(true);
	}
	QVERIFY(!map.hasAlpha());
	
	view.setAllTemplatesHidden(false);
	view.setGridVisible(false);
	QVERIFY(!view.hasAlpha());
	
	view.setMapVisibility({1, true});
	QVERIFY(!view.hasAlpha());
	
	view.setMapVisibility({1, false});
	QVERIFY(!view.hasAlpha());
	
	view.setMapVisibility({0.5, false});
	QVERIFY(!view.hasAlpha());
	
	view.setMapVisibility({0.5, true});
	QVERIFY(view.hasAlpha());
	
	view.setAllTemplatesHidden(true);
	QVERIFY(!view.hasAlpha());
	
	view.setGridVisible(true);
	MapGrid grid;