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Copy pathDefaultNodePainter.cpp
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463 lines (343 loc) · 15.7 KB
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#include "DefaultNodePainter.hpp"
#include "AbstractGraphModel.hpp"
#include "AbstractNodeGeometry.hpp"
#include "BasicGraphicsScene.hpp"
#include "ConnectionGraphicsObject.hpp"
#include "ConnectionIdUtils.hpp"
#include "DataFlowGraphModel.hpp"
#include "NodeDelegateModel.hpp"
#include "NodeGraphicsObject.hpp"
#include "NodeState.hpp"
#include "StyleCollection.hpp"
#include <QtCore/QMargins>
#include <cmath>
namespace QtNodes {
void DefaultNodePainter::paint(QPainter *painter, NodeGraphicsObject &ngo) const
{
// TODO?
//AbstractNodeGeometry & geometry = ngo.nodeScene()->nodeGeometry();
//geometry.recomputeSizeIfFontChanged(painter->font());
drawNodeRect(painter, ngo);
drawConnectionPoints(painter, ngo);
drawFilledConnectionPoints(painter, ngo);
drawNodeCaption(painter, ngo);
drawEntryLabels(painter, ngo);
drawProcessingIndicator(painter, ngo);
drawResizeRect(painter, ngo);
drawNodeLabel(painter, ngo);
drawValidationIcon(painter, ngo);
drawProgressValue(painter, ngo);
}
void DefaultNodePainter::drawNodeRect(QPainter *painter, NodeGraphicsObject &ngo) const
{
AbstractGraphModel &model = ngo.graphModel();
NodeId const nodeId = ngo.nodeId();
AbstractNodeGeometry &geometry = ngo.nodeScene()->nodeGeometry();
QSize size = geometry.size(nodeId);
QJsonDocument json = QJsonDocument::fromVariant(model.nodeData(nodeId, NodeRole::Style));
NodeStyle nodeStyle(json.object());
QVariant var = model.nodeData(nodeId, NodeRole::ValidationState);
bool invalid = false;
QColor color = ngo.isSelected() ? nodeStyle.SelectedBoundaryColor
: nodeStyle.NormalBoundaryColor;
if (var.canConvert<NodeValidationState>()) {
auto state = var.value<NodeValidationState>();
switch (state._state) {
case NodeValidationState::State::Error: {
invalid = true;
color = nodeStyle.ErrorColor;
} break;
case NodeValidationState::State::Warning: {
invalid = true;
color = nodeStyle.WarningColor;
break;
default:
break;
}
}
}
if (ngo.nodeState().hovered()) {
QPen p(color, nodeStyle.HoveredPenWidth);
painter->setPen(p);
} else {
QPen p(color, nodeStyle.PenWidth);
painter->setPen(p);
}
if (invalid) {
painter->setBrush(color);
} else {
QLinearGradient gradient(QPointF(0.0, 0.0), QPointF(2.0, size.height()));
gradient.setColorAt(0.0, nodeStyle.GradientColor0);
gradient.setColorAt(0.10, nodeStyle.GradientColor1);
gradient.setColorAt(0.90, nodeStyle.GradientColor2);
gradient.setColorAt(1.0, nodeStyle.GradientColor3);
painter->setBrush(gradient);
}
QRectF boundary(0, 0, size.width(), size.height());
double const radius = 3.0;
painter->drawRoundedRect(boundary, radius, radius);
}
void DefaultNodePainter::drawConnectionPoints(QPainter *painter, NodeGraphicsObject &ngo) const
{
AbstractGraphModel &model = ngo.graphModel();
NodeId const nodeId = ngo.nodeId();
AbstractNodeGeometry &geometry = ngo.nodeScene()->nodeGeometry();
QJsonDocument json = QJsonDocument::fromVariant(model.nodeData(nodeId, NodeRole::Style));
NodeStyle nodeStyle(json.object());
auto const &connectionStyle = StyleCollection::connectionStyle();
float diameter = nodeStyle.ConnectionPointDiameter;
auto reducedDiameter = diameter * 0.6;
for (PortType portType : {PortType::Out, PortType::In}) {
auto portCountRole = (portType == PortType::Out) ? NodeRole::OutPortCount
: NodeRole::InPortCount;
size_t const n = model.nodeData(nodeId, portCountRole).toUInt();
for (PortIndex portIndex = 0; portIndex < n; ++portIndex) {
QPointF p = geometry.portPosition(nodeId, portType, portIndex);
auto const &dataType = model.portData(nodeId, portType, portIndex, PortRole::DataType)
.value<NodeDataType>();
double r = 1.0;
NodeState const &state = ngo.nodeState();
if (auto const *cgo = state.connectionForReaction()) {
PortType requiredPort = cgo->connectionState().requiredPort();
if (requiredPort == portType) {
ConnectionId possibleConnectionId = makeCompleteConnectionId(cgo->connectionId(),
nodeId,
portIndex);
bool const possible = model.connectionPossible(possibleConnectionId);
auto cp = cgo->sceneTransform().map(cgo->endPoint(requiredPort));
cp = ngo.sceneTransform().inverted().map(cp);
auto diff = cp - p;
double dist = std::sqrt(QPointF::dotProduct(diff, diff));
if (possible) {
double const thres = 40.0;
r = (dist < thres) ? (2.0 - dist / thres) : 1.0;
} else {
double const thres = 80.0;
r = (dist < thres) ? (dist / thres) : 1.0;
}
}
}
if (connectionStyle.useDataDefinedColors()) {
painter->setBrush(connectionStyle.normalColor(dataType.id));
} else {
painter->setBrush(nodeStyle.ConnectionPointColor);
}
painter->drawEllipse(p, reducedDiameter * r, reducedDiameter * r);
}
}
if (ngo.nodeState().connectionForReaction()) {
ngo.nodeState().resetConnectionForReaction();
}
}
void DefaultNodePainter::drawFilledConnectionPoints(QPainter *painter, NodeGraphicsObject &ngo) const
{
AbstractGraphModel &model = ngo.graphModel();
NodeId const nodeId = ngo.nodeId();
AbstractNodeGeometry &geometry = ngo.nodeScene()->nodeGeometry();
QJsonDocument json = QJsonDocument::fromVariant(model.nodeData(nodeId, NodeRole::Style));
NodeStyle nodeStyle(json.object());
auto diameter = nodeStyle.ConnectionPointDiameter;
for (PortType portType : {PortType::Out, PortType::In}) {
size_t const n = model
.nodeData(nodeId,
(portType == PortType::Out) ? NodeRole::OutPortCount
: NodeRole::InPortCount)
.toUInt();
for (PortIndex portIndex = 0; portIndex < n; ++portIndex) {
QPointF p = geometry.portPosition(nodeId, portType, portIndex);
auto const &connected = model.connections(nodeId, portType, portIndex);
if (!connected.empty()) {
auto const &dataType = model
.portData(nodeId, portType, portIndex, PortRole::DataType)
.value<NodeDataType>();
auto const &connectionStyle = StyleCollection::connectionStyle();
if (connectionStyle.useDataDefinedColors()) {
QColor const c = connectionStyle.normalColor(dataType.id);
painter->setPen(c);
painter->setBrush(c);
} else {
painter->setPen(nodeStyle.FilledConnectionPointColor);
painter->setBrush(nodeStyle.FilledConnectionPointColor);
}
painter->drawEllipse(p, diameter * 0.4, diameter * 0.4);
}
}
}
}
void DefaultNodePainter::drawNodeCaption(QPainter *painter, NodeGraphicsObject &ngo) const
{
AbstractGraphModel &model = ngo.graphModel();
NodeId const nodeId = ngo.nodeId();
AbstractNodeGeometry &geometry = ngo.nodeScene()->nodeGeometry();
if (!model.nodeData(nodeId, NodeRole::CaptionVisible).toBool())
return;
QString const nickname = model.nodeData(nodeId, NodeRole::Label).toString();
QString const name = model.nodeData(nodeId, NodeRole::Caption).toString();
QFont f = painter->font();
f.setBold(nickname.isEmpty());
f.setItalic(!nickname.isEmpty());
QFontMetricsF metrics(f);
QRectF bounding = metrics.boundingRect(name);
QRectF capRect = geometry.captionRect(nodeId);
QPointF capPos = geometry.captionPosition(nodeId);
double centerX = capPos.x() + capRect.width() / 2.0;
QPointF position(centerX - bounding.width() / 2.0, capPos.y());
QJsonDocument json = QJsonDocument::fromVariant(model.nodeData(nodeId, NodeRole::Style));
NodeStyle nodeStyle(json.object());
painter->setFont(f);
painter->setPen(nodeStyle.FontColor);
painter->drawText(position, name);
f.setBold(false);
f.setItalic(false);
painter->setFont(f);
}
void DefaultNodePainter::drawNodeLabel(QPainter *painter, NodeGraphicsObject &ngo) const
{
AbstractGraphModel &model = ngo.graphModel();
NodeId const nodeId = ngo.nodeId();
AbstractNodeGeometry &geometry = ngo.nodeScene()->nodeGeometry();
if (!model.nodeData(nodeId, NodeRole::LabelVisible).toBool())
return;
QString const nickname = model.nodeData(nodeId, NodeRole::Label).toString();
QFont f = painter->font();
f.setBold(true);
f.setItalic(false);
QFontMetricsF metrics(f);
QRectF bounding = metrics.boundingRect(nickname);
QRectF capRect = geometry.captionRect(nodeId);
QPointF capPos = geometry.captionPosition(nodeId);
double centerX = capPos.x() + capRect.width() / 2.0;
double textHeight = metrics.height();
double y = capPos.y() - textHeight - 2.0;
QPointF position(centerX - bounding.width() / 2.0, y);
QJsonDocument json = QJsonDocument::fromVariant(model.nodeData(nodeId, NodeRole::Style));
NodeStyle nodeStyle(json.object());
painter->setFont(f);
painter->setPen(nodeStyle.FontColor);
painter->drawText(position, nickname);
f.setBold(false);
painter->setFont(f);
}
void DefaultNodePainter::drawEntryLabels(QPainter *painter, NodeGraphicsObject &ngo) const
{
AbstractGraphModel &model = ngo.graphModel();
NodeId const nodeId = ngo.nodeId();
AbstractNodeGeometry &geometry = ngo.nodeScene()->nodeGeometry();
QJsonDocument json = QJsonDocument::fromVariant(model.nodeData(nodeId, NodeRole::Style));
NodeStyle nodeStyle(json.object());
for (PortType portType : {PortType::Out, PortType::In}) {
unsigned int n = model.nodeData<unsigned int>(nodeId,
(portType == PortType::Out)
? NodeRole::OutPortCount
: NodeRole::InPortCount);
for (PortIndex portIndex = 0; portIndex < n; ++portIndex) {
auto const &connected = model.connections(nodeId, portType, portIndex);
QPointF p = geometry.portTextPosition(nodeId, portType, portIndex);
if (connected.empty())
painter->setPen(nodeStyle.FontColorFaded);
else
painter->setPen(nodeStyle.FontColor);
QString s;
if (model.portData<bool>(nodeId, portType, portIndex, PortRole::CaptionVisible)) {
s = model.portData<QString>(nodeId, portType, portIndex, PortRole::Caption);
} else {
auto portData = model.portData(nodeId, portType, portIndex, PortRole::DataType);
s = portData.value<NodeDataType>().name;
}
painter->drawText(p, s);
}
}
}
void DefaultNodePainter::drawResizeRect(QPainter *painter, NodeGraphicsObject &ngo) const
{
AbstractGraphModel &model = ngo.graphModel();
NodeId const nodeId = ngo.nodeId();
AbstractNodeGeometry &geometry = ngo.nodeScene()->nodeGeometry();
if (model.nodeFlags(nodeId) & NodeFlag::Resizable) {
painter->setBrush(Qt::gray);
painter->drawEllipse(geometry.resizeHandleRect(nodeId));
}
}
void DefaultNodePainter::drawProcessingIndicator(QPainter *painter, NodeGraphicsObject &ngo) const
{
AbstractGraphModel &model = ngo.graphModel();
NodeId const nodeId = ngo.nodeId();
auto *dfModel = dynamic_cast<DataFlowGraphModel *>(&model);
if (!dfModel)
return;
auto *delegate = dfModel->delegateModel<NodeDelegateModel>(nodeId);
if (!delegate)
return;
// Skip if status is NoStatus
if (delegate->processingStatus() == NodeProcessingStatus::NoStatus)
return;
AbstractNodeGeometry &geometry = ngo.nodeScene()->nodeGeometry();
QSize size = geometry.size(nodeId);
QPixmap pixmap = delegate->processingStatusIcon();
if (pixmap.isNull())
return;
ProcessingIconStyle const &iconStyle = delegate->nodeStyle().processingIconStyle;
qreal iconSize = iconStyle._size;
qreal margin = iconStyle._margin;
// Determine position, avoiding conflict with resize handle
ProcessingIconPos pos = iconStyle._pos;
bool isResizable = model.nodeFlags(nodeId) & NodeFlag::Resizable;
if (isResizable && pos == ProcessingIconPos::BottomRight) {
pos = ProcessingIconPos::BottomLeft;
}
qreal x = margin;
if (pos == ProcessingIconPos::BottomRight) {
x = size.width() - iconSize - margin;
}
QRect r(x, size.height() - iconSize - margin, iconSize, iconSize);
painter->drawPixmap(r, pixmap);
}
void DefaultNodePainter::drawValidationIcon(QPainter *painter, NodeGraphicsObject &ngo) const
{
AbstractGraphModel &model = ngo.graphModel();
NodeId const nodeId = ngo.nodeId();
AbstractNodeGeometry &geometry = ngo.nodeScene()->nodeGeometry();
QVariant var = model.nodeData(nodeId, NodeRole::ValidationState);
if (!var.canConvert<NodeValidationState>())
return;
auto state = var.value<NodeValidationState>();
if (state._state == NodeValidationState::State::Valid)
return;
QJsonDocument json = QJsonDocument::fromVariant(model.nodeData(nodeId, NodeRole::Style));
NodeStyle nodeStyle(json.object());
QSize size = geometry.size(nodeId);
QIcon icon(":/info-tooltip.svg");
QSize iconSize(16, 16);
QPixmap pixmap = icon.pixmap(iconSize);
QColor color = (state._state == NodeValidationState::State::Error) ? nodeStyle.ErrorColor
: nodeStyle.WarningColor;
QPainter imgPainter(&pixmap);
imgPainter.setCompositionMode(QPainter::CompositionMode_SourceIn);
imgPainter.fillRect(pixmap.rect(), color);
imgPainter.end();
QPointF center(size.width(), 0.0);
center += QPointF(iconSize.width() / 2.0, -iconSize.height() / 2.0);
painter->drawPixmap(center.toPoint() - QPoint(iconSize.width() / 2, iconSize.height() / 2),
pixmap);
}
void DefaultNodePainter::drawProgressValue(QPainter *painter, NodeGraphicsObject &ngo) const
{
AbstractGraphModel &model = ngo.graphModel();
NodeId const nodeId = ngo.nodeId();
AbstractNodeGeometry &geometry = ngo.nodeScene()->nodeGeometry();
QString const nodeProgress = model.nodeData(nodeId, NodeRole::ProgressValue).toString();
QFont font = painter->font();
font.setBold(true);
font.setPointSize(7);
auto rect = QFontMetrics(font).boundingRect(nodeProgress);
QSize size = geometry.size(nodeId);
QPointF position(rect.width() / 1.5, size.height() - 1.0 * rect.height());
QJsonDocument json = QJsonDocument::fromVariant(model.nodeData(nodeId, NodeRole::Style));
NodeStyle nodeStyle(json.object());
painter->setFont(font);
painter->setPen(nodeStyle.FontColor);
painter->drawText(position, nodeProgress);
font.setBold(false);
painter->setFont(font);
}
} // namespace QtNodes
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