C++ (Cpp) BGradient Examples

Example #1

File: Gradient.cpp Project: mmanley/Antares

// SetColorStops
void
BGradient::SetColorStops(const BGradient& other)
{
	MakeEmpty();
	for (int32 i = 0; ColorStop* stop = other.ColorStopAt(i); i++)
		AddColorStop(*stop, i);
}

Example #2

File: Gradient.cpp Project: mmanley/Antares

// ColorStopsAreEqual
bool
BGradient::ColorStopsAreEqual(const BGradient& other) const
{
	int32 count = CountColorStops();
	if (count == other.CountColorStops() &&
		fType == other.fType) {
		
		bool equal = true;
		for (int32 i = 0; i < count; i++) {
			ColorStop* ourStop = ColorStopAtFast(i);
			ColorStop* otherStop = other.ColorStopAtFast(i);
			if (*ourStop != *otherStop) {
				equal = false;
				break;
			}
		}
		return equal;
	}
	return false;
}

Example #3

File: CanvasMessage.cpp Project: SummerSnail2014/haiku

status_t
CanvasMessage::ReadGradient(BGradient** _gradient)
{
	BGradient::Type type;
	Read(type);

	BGradient *gradient = NULL;
	switch (type) {
		case BGradient::TYPE_NONE:
			break;

		case BGradient::TYPE_LINEAR:
		{
			BPoint start, end;

			Read(start);
			Read(end);

			gradient = new(std::nothrow) BGradientLinear(start, end);
			break;
		}

		case BGradient::TYPE_RADIAL:
		{
			BPoint center;
			float radius;

			Read(center);
			Read(radius);

			gradient = new(std::nothrow) BGradientRadial(center, radius);
			break;
		}

		case BGradient::TYPE_RADIAL_FOCUS:
		{
			BPoint center, focal;
			float radius;

			Read(center);
			Read(focal);
			Read(radius);

			gradient = new(std::nothrow) BGradientRadialFocus(center, radius,
				focal);
			break;
		}

		case BGradient::TYPE_DIAMOND:
		{
			BPoint center;

			Read(center);

			gradient = new(std::nothrow) BGradientDiamond(center);
			break;
		}

		case BGradient::TYPE_CONIC:
		{
			BPoint center;
			float angle;

			Read(center);
			Read(angle);

			gradient = new(std::nothrow) BGradientConic(center, angle);
			break;
		}
	}

	if (gradient == NULL)
		return B_NO_MEMORY;

	int32 stopCount;
	status_t result = Read(stopCount);
	if (result != B_OK) {
		delete gradient;
		return result;
	}

	for (int32 i = 0; i < stopCount; i++) {
		rgb_color color;
		float offset;

		Read(color);
		result = Read(offset);
		if (result != B_OK)
			return result;

		gradient->AddColor(color, offset);
	}

	*_gradient = gradient;
	return B_OK;
}

Example #4

File: CanvasMessage.cpp Project: SummerSnail2014/haiku

void
CanvasMessage::AddGradient(const BGradient& gradient)
{
	Add(gradient.GetType());

	switch (gradient.GetType()) {
		case BGradient::TYPE_NONE:
			break;

		case BGradient::TYPE_LINEAR:
		{
			const BGradientLinear* linear
				= dynamic_cast<const BGradientLinear *>(&gradient);
			if (linear == NULL)
				return;

			Add(linear->Start());
			Add(linear->End());
			break;
		}

		case BGradient::TYPE_RADIAL:
		{
			const BGradientRadial* radial
				= dynamic_cast<const BGradientRadial *>(&gradient);
			if (radial == NULL)
				return;

			Add(radial->Center());
			Add(radial->Radius());
			break;
		}

		case BGradient::TYPE_RADIAL_FOCUS:
		{
			const BGradientRadialFocus* radialFocus
				= dynamic_cast<const BGradientRadialFocus *>(&gradient);
			if (radialFocus == NULL)
				return;

			Add(radialFocus->Center());
			Add(radialFocus->Focal());
			Add(radialFocus->Radius());
			break;
		}

		case BGradient::TYPE_DIAMOND:
		{
			const BGradientDiamond* diamond
				= dynamic_cast<const BGradientDiamond *>(&gradient);
			if (diamond == NULL)
				return;

			Add(diamond->Center());
			break;
		}

		case BGradient::TYPE_CONIC:
		{
			const BGradientConic* conic
				= dynamic_cast<const BGradientConic *>(&gradient);
			if (conic == NULL)
				return;

			Add(conic->Center());
			Add(conic->Angle());
			break;
		}
	}

	int32 stopCount = gradient.CountColorStops();
	Add(stopCount);

	for (int32 i = 0; i < stopCount; i++) {
		BGradient::ColorStop* stop = gradient.ColorStopAt(i);
		if (stop == NULL)
			return;

		Add(stop->color);
		Add(stop->offset);
	}
}

Example #5

File: ServerLink.cpp Project: Barrett17/haiku-contacts-kit-old

status_t
ServerLink::AttachGradient(const BGradient& gradient)
{
	GTRACE(("ServerLink::AttachGradient\n"));
	BGradient::Type gradientType = gradient.GetType();
	int32 stopCount = gradient.CountColorStops();
	GTRACE(("ServerLink::AttachGradient> color stop count == %d\n",
		(int)stopCount));
	fSender->Attach(&gradientType, sizeof(BGradient::Type));
	fSender->Attach(&stopCount, sizeof(int32));
	if (stopCount > 0) {
		for (int i = 0; i < stopCount; i++) {
			fSender->Attach(gradient.ColorStopAtFast(i),
				sizeof(BGradient::ColorStop));
		}
	}

	switch (gradientType) {
		case BGradient::TYPE_LINEAR:
		{
			GTRACE(("ServerLink::AttachGradient> type == TYPE_LINEAR\n"));
			const BGradientLinear* linear = (BGradientLinear*)&gradient;
			fSender->Attach(linear->Start());
			fSender->Attach(linear->End());
			break;
		}
		case BGradient::TYPE_RADIAL:
		{
			GTRACE(("ServerLink::AttachGradient> type == TYPE_RADIAL\n"));
			const BGradientRadial* radial = (BGradientRadial*)&gradient;
			BPoint center = radial->Center();
			float radius = radial->Radius();
			fSender->Attach(&center, sizeof(BPoint));
			fSender->Attach(&radius, sizeof(float));
			break;
		}
		case BGradient::TYPE_RADIAL_FOCUS:
		{
			GTRACE(("ServerLink::AttachGradient> type == TYPE_RADIAL_FOCUS\n"));
			const BGradientRadialFocus* radialFocus
				= (BGradientRadialFocus*)&gradient;
			BPoint center = radialFocus->Center();
			BPoint focal = radialFocus->Focal();
			float radius = radialFocus->Radius();
			fSender->Attach(&center, sizeof(BPoint));
			fSender->Attach(&focal, sizeof(BPoint));
			fSender->Attach(&radius, sizeof(float));
			break;
		}
		case BGradient::TYPE_DIAMOND:
		{
			GTRACE(("ServerLink::AttachGradient> type == TYPE_DIAMOND\n"));
			const BGradientDiamond* diamond = (BGradientDiamond*)&gradient;
			BPoint center = diamond->Center();
			fSender->Attach(&center, sizeof(BPoint));
			break;
		}
		case BGradient::TYPE_CONIC:
		{
			GTRACE(("ServerLink::AttachGradient> type == TYPE_CONIC\n"));
			const BGradientConic* conic = (BGradientConic*)&gradient;
			BPoint center = conic->Center();
			float angle = conic->Angle();
			fSender->Attach(&center, sizeof(BPoint));
			fSender->Attach(&angle, sizeof(float));
			break;
		}
		case BGradient::TYPE_NONE:
		{
			GTRACE(("ServerLink::AttachGradient> type == TYPE_NONE\n"));
			break;
		}
	}
	return B_OK;
}

Example #6

File: LinkReceiver.cpp Project: DonCN/haiku

status_t
LinkReceiver::ReadGradient(BGradient** _gradient)
{
	GTRACE(("LinkReceiver::ReadGradient\n"));

	BGradient::Type gradientType;
	int32 colorsCount;
	Read(&gradientType, sizeof(BGradient::Type));
	status_t status = Read(&colorsCount, sizeof(int32));
	if (status != B_OK)
		return status;

	BGradient* gradient = gradient_for_type(gradientType);
	if (!gradient)
		return B_NO_MEMORY;

	*_gradient = gradient;

	if (colorsCount > 0) {
		BGradient::ColorStop stop;
		for (int i = 0; i < colorsCount; i++) {
			if ((status = Read(&stop, sizeof(BGradient::ColorStop))) != B_OK)
				return status;
			if (!gradient->AddColorStop(stop, i))
				return B_NO_MEMORY;
		}
	}

	switch (gradientType) {
		case BGradient::TYPE_LINEAR:
		{
			GTRACE(("LinkReceiver::ReadGradient> type == TYPE_LINEAR\n"));
			BGradientLinear* linear = (BGradientLinear*)gradient;
			BPoint start;
			BPoint end;
			Read(&start, sizeof(BPoint));
			if ((status = Read(&end, sizeof(BPoint))) != B_OK)
				return status;
			linear->SetStart(start);
			linear->SetEnd(end);
			return B_OK;
		}
		case BGradient::TYPE_RADIAL:
		{
			GTRACE(("LinkReceiver::ReadGradient> type == TYPE_RADIAL\n"));
			BGradientRadial* radial = (BGradientRadial*)gradient;
			BPoint center;
			float radius;
			Read(&center, sizeof(BPoint));
			if ((status = Read(&radius, sizeof(float))) != B_OK)
				return status;
			radial->SetCenter(center);
			radial->SetRadius(radius);
			return B_OK;
		}
		case BGradient::TYPE_RADIAL_FOCUS:
		{
			GTRACE(("LinkReceiver::ReadGradient> type == TYPE_RADIAL_FOCUS\n"));
			BGradientRadialFocus* radialFocus =
				(BGradientRadialFocus*)gradient;
			BPoint center;
			BPoint focal;
			float radius;
			Read(&center, sizeof(BPoint));
			Read(&focal, sizeof(BPoint));
			if ((status = Read(&radius, sizeof(float))) != B_OK)
				return status;
			radialFocus->SetCenter(center);
			radialFocus->SetFocal(focal);
			radialFocus->SetRadius(radius);
			return B_OK;
		}
		case BGradient::TYPE_DIAMOND:
		{
			GTRACE(("LinkReceiver::ReadGradient> type == TYPE_DIAMOND\n"));
			BGradientDiamond* diamond = (BGradientDiamond*)gradient;
			BPoint center;
			if ((status = Read(&center, sizeof(BPoint))) != B_OK)
				return status;
			diamond->SetCenter(center);
			return B_OK;
		}
		case BGradient::TYPE_CONIC:
		{
			GTRACE(("LinkReceiver::ReadGradient> type == TYPE_CONIC\n"));
			BGradientConic* conic = (BGradientConic*)gradient;
			BPoint center;
			float angle;
			Read(&center, sizeof(BPoint));
			if ((status = Read(&angle, sizeof(float))) != B_OK)
				return status;
			conic->SetCenter(center);
			conic->SetAngle(angle);
			return B_OK;
		}
		case BGradient::TYPE_NONE:
		{
			GTRACE(("LinkReceiver::ReadGradient> type == TYPE_NONE\n"));
			break;
		}
	}

	return B_ERROR;
}

Example #7

File: Gradient.cpp Project: mmanley/Antares

// operator==
bool
BGradient::operator==(const BGradient& other) const
{
	return ((other.GetType() == GetType()) && ColorStopsAreEqual(other));
}