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o3de/Gems/GraphCanvas/Code/Source/Components/Nodes/General/GeneralNodeLayoutComponent.cpp

140 lines
4.7 KiB
C++

/*
* Copyright (c) Contributors to the Open 3D Engine Project. For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#include <functional>
#include <AzCore/RTTI/TypeInfo.h>
#include <QGraphicsLayoutItem>
#include <QGraphicsGridLayout>
#include <Components/Nodes/General/GeneralNodeLayoutComponent.h>
#include <Components/Nodes/NodeComponent.h>
#include <Components/Nodes/NodeLayerControllerComponent.h>
#include <Components/Nodes/General/GeneralNodeFrameComponent.h>
#include <Components/Nodes/General/GeneralSlotLayoutComponent.h>
#include <Components/Nodes/General/GeneralNodeTitleComponent.h>
#include <Components/StylingComponent.h>
#include <GraphCanvas/Components/GeometryBus.h>
#include <GraphCanvas/Components/Slots/SlotBus.h>
#include <GraphCanvas/tools.h>
#include <GraphCanvas/Styling/StyleHelper.h>
namespace GraphCanvas
{
///////////////////////////////
// GeneralNodeLayoutComponent
///////////////////////////////
void GeneralNodeLayoutComponent::Reflect(AZ::ReflectContext* context)
{
AZ::SerializeContext* serializeContext = azrtti_cast<AZ::SerializeContext*>(context);
if (serializeContext)
{
serializeContext->Class<GeneralNodeLayoutComponent, NodeLayoutComponent>()
->Version(1)
;
}
}
AZ::Entity* GeneralNodeLayoutComponent::CreateGeneralNodeEntity(const char* nodeType, const NodeConfiguration& configuration)
{
// Create this Node's entity.
AZ::Entity* entity = NodeComponent::CreateCoreNodeEntity(configuration);
entity->CreateComponent<GeneralNodeFrameComponent>();
entity->CreateComponent<StylingComponent>(Styling::Elements::Node, AZ::EntityId(), nodeType);
entity->CreateComponent<GeneralNodeLayoutComponent>();
entity->CreateComponent<GeneralNodeTitleComponent>();
entity->CreateComponent<GeneralSlotLayoutComponent>();
entity->CreateComponent<NodeLayerControllerComponent>();
return entity;
}
GeneralNodeLayoutComponent::GeneralNodeLayoutComponent()
: m_title(nullptr)
, m_slots(nullptr)
{
}
GeneralNodeLayoutComponent::~GeneralNodeLayoutComponent()
{
}
void GeneralNodeLayoutComponent::Init()
{
NodeLayoutComponent::Init();
m_layout = new QGraphicsLinearLayout(Qt::Vertical);
m_layout->setInstantInvalidatePropagation(true);
m_title = new QGraphicsLinearLayout(Qt::Horizontal);
m_title->setInstantInvalidatePropagation(true);
m_slots = new QGraphicsLinearLayout(Qt::Horizontal);
m_slots->setInstantInvalidatePropagation(true);
}
void GeneralNodeLayoutComponent::Activate()
{
NodeLayoutComponent::Activate();
NodeNotificationBus::Handler::BusConnect(GetEntityId());
}
void GeneralNodeLayoutComponent::Deactivate()
{
NodeLayoutComponent::Deactivate();
StyleNotificationBus::Handler::BusDisconnect();
NodeNotificationBus::Handler::BusDisconnect();
}
void GeneralNodeLayoutComponent::OnStyleChanged()
{
UpdateLayoutParameters();
}
void GeneralNodeLayoutComponent::OnNodeActivated()
{
QGraphicsWidget* titleGraphicsItem = nullptr;
NodeTitleRequestBus::EventResult(titleGraphicsItem, GetEntityId(), &NodeTitleRequests::GetGraphicsWidget);
if (titleGraphicsItem)
{
m_title->addItem(titleGraphicsItem);
m_title->setContentsMargins(0, 0, 0, 0);
}
GetLayoutAs<QGraphicsLinearLayout>()->addItem(m_title);
QGraphicsLayoutItem* slotsGraphicsItem = nullptr;
NodeSlotsRequestBus::EventResult(slotsGraphicsItem, GetEntityId(), &NodeSlotsRequestBus::Events::GetGraphicsLayoutItem);
if (slotsGraphicsItem)
{
m_slots->addItem(slotsGraphicsItem);
m_slots->setContentsMargins(0, 0, 0, 0);
}
GetLayoutAs<QGraphicsLinearLayout>()->addItem(m_slots);
StyleNotificationBus::Handler::BusConnect(GetEntityId());
UpdateLayoutParameters();
}
void GeneralNodeLayoutComponent::UpdateLayoutParameters()
{
Styling::StyleHelper style(GetEntityId());
qreal border = style.GetAttribute(Styling::Attribute::BorderWidth, 0.0);
qreal spacing = style.GetAttribute(Styling::Attribute::Spacing, 4.0);
qreal margin = style.GetAttribute(Styling::Attribute::Margin, 4.0);
GetLayoutAs<QGraphicsLinearLayout>()->setContentsMargins(margin + border, margin + border, margin + border, margin + border);
GetLayoutAs<QGraphicsLinearLayout>()->setSpacing(spacing);
GetLayout()->invalidate();
}
}