Meshroom/meshroom/ui/qml/GraphEditor/AttributePin.qml

360 lines
13 KiB
QML
Executable file

import QtQuick 2.9
import QtQuick.Controls 2.3
import QtQuick.Layouts 1.3
import MaterialIcons 2.2
import Utils 1.0
/**
The representation of an Attribute on a Node.
*/
RowLayout {
id: root
property var nodeItem
property var attribute
property bool readOnly: false
/// Whether to display an output pin for input attribute
property bool displayOutputPinForInput: true
// position of the anchor for attaching and edge to this attribute pin
readonly property point inputAnchorPos: Qt.point(inputAnchor.x + inputAnchor.width/2,
inputAnchor.y + inputAnchor.height/2)
readonly property point outputAnchorPos: Qt.point(outputAnchor.x + outputAnchor.width/2,
outputAnchor.y + outputAnchor.height/2)
readonly property bool isList: attribute && attribute.type === "ListAttribute"
signal childPinCreated(var childAttribute, var pin)
signal childPinDeleted(var childAttribute, var pin)
signal pressed(var mouse)
objectName: attribute ? attribute.name + "." : ""
layoutDirection: Qt.LeftToRight
spacing: 3
// Instantiate empty Items for each child attribute
Repeater {
id: childrenRepeater
model: isList && !attribute.isLink ? attribute.value : 0
onItemAdded: {childPinCreated(item.childAttribute, item)}
onItemRemoved: {childPinDeleted(item.childAttribute, item)}
delegate: Item {
property var childAttribute: object
}
}
Rectangle {
visible: !attribute.isOutput
id: inputAnchor
width: 8
height: width
radius: isList ? 0 : width/2
Layout.alignment: Qt.AlignVCenter
border.color: Colors.sysPalette.mid
color: Colors.sysPalette.base
Rectangle {
visible: inputConnectMA.containsMouse || childrenRepeater.count > 0 || attribute.isLink
radius: isList ? 0 : 2
anchors.fill: parent
anchors.margins: 2
color: {
if(inputConnectMA.containsMouse || inputConnectMA.drag.active || (inputDropArea.containsDrag && inputDropArea.acceptableDrop))
return Colors.sysPalette.highlight
return Colors.sysPalette.text
}
}
DropArea {
id: inputDropArea
property bool acceptableDrop: false
// add negative margins for DropArea to make the connection zone easier to reach
anchors.fill: parent
anchors.margins: -2
// add horizontal negative margins according to the current layout
anchors.rightMargin: -root.width * 0.3
keys: [inputDragTarget.objectName]
onEntered: {
// Filter drops:
if( root.readOnly
|| drag.source.objectName != inputDragTarget.objectName // not an edge connector
|| drag.source.nodeItem == inputDragTarget.nodeItem // connection between attributes of the same node
|| inputDragTarget.attribute.isLink // already connected attribute
|| (drag.source.isList && !inputDragTarget.isList) // connection between a list and a simple attribute
|| (drag.source.isList && childrenRepeater.count) // source/target are lists but target already has children
|| drag.source.connectorType == "input"
)
{
drag.accepted = false
}
inputDropArea.acceptableDrop = drag.accepted
}
onExited: {
acceptableDrop = false
drag.source.dropAccepted = false
}
onDropped: {
_reconstruction.addEdge(drag.source.attribute, inputDragTarget.attribute)
}
}
Item {
id: inputDragTarget
objectName: "edgeConnector"
readonly property string connectorType: "input"
readonly property alias attribute: root.attribute
readonly property alias nodeItem: root.nodeItem
readonly property bool isOutput: attribute && attribute.isOutput
readonly property alias isList: root.isList
property bool dragAccepted: false
anchors.verticalCenter: parent.verticalCenter
anchors.horizontalCenter: parent.horizontalCenter
width: 4
height: 4
Drag.keys: [inputDragTarget.objectName]
Drag.active: inputConnectMA.drag.active
Drag.hotSpot.x: width*0.5
Drag.hotSpot.y: height*0.5
}
MouseArea {
id: inputConnectMA
// If an input attribute is connected (isLink), we disable drag&drop
drag.target: attribute.isLink ? undefined : inputDragTarget
drag.threshold: 0
enabled: !root.readOnly
anchors.fill: parent
// use the same negative margins as DropArea to ease pin selection
anchors.margins: inputDropArea.anchors.margins
anchors.leftMargin: inputDropArea.anchors.leftMargin
anchors.rightMargin: inputDropArea.anchors.rightMargin
onPressed: {
root.pressed(mouse)
}
onReleased: {
inputDragTarget.Drag.drop()
}
hoverEnabled: true
}
Edge {
id: inputConnectEdge
visible: false
point1x: inputDragTarget.x + inputDragTarget.width/2
point1y: inputDragTarget.y + inputDragTarget.height/2
point2x: parent.width / 2
point2y: parent.width / 2
color: nameLabel.color
thickness: outputDragTarget.dropAccepted ? 2 : 1
}
}
// Attribute name
Item {
id: nameContainer
Layout.fillWidth: true
implicitHeight: childrenRect.height
Label {
id: nameLabel
property bool hovered: (inputConnectMA.containsMouse || inputConnectMA.drag.active || inputDropArea.containsDrag || outputConnectMA.containsMouse || outputConnectMA.drag.active || outputDropArea.containsDrag)
text: attribute.label
elide: hovered ? Text.ElideNone : Text.ElideMiddle
width: hovered ? contentWidth : parent.width
font.pointSize: 7
horizontalAlignment: attribute && attribute.isOutput ? Text.AlignRight : Text.AlignLeft
anchors.right: attribute && attribute.isOutput ? parent.right : undefined
rightPadding: 0
color: hovered ? palette.highlight : palette.text
}
}
Rectangle {
id: outputAnchor
visible: displayOutputPinForInput || attribute.isOutput
width: 8
height: width
radius: isList ? 0 : width / 2
Layout.alignment: Qt.AlignVCenter
border.color: Colors.sysPalette.mid
color: Colors.sysPalette.base
Rectangle {
visible: attribute.hasOutputConnections
radius: isList ? 0 : 2
anchors.fill: parent
anchors.margins: 2
color: {
if(outputConnectMA.containsMouse || outputConnectMA.drag.active || (outputDropArea.containsDrag && outputDropArea.acceptableDrop))
return Colors.sysPalette.highlight
return Colors.sysPalette.text
}
}
DropArea {
id: outputDropArea
property bool acceptableDrop: false
// add negative margins for DropArea to make the connection zone easier to reach
anchors.fill: parent
anchors.margins: -2
// add horizontal negative margins according to the current layout
anchors.leftMargin: -root.width * 0.2
keys: [outputDragTarget.objectName]
onEntered: {
// Filter drops:
if( drag.source.objectName != outputDragTarget.objectName // not an edge connector
|| drag.source.nodeItem == outputDragTarget.nodeItem // connection between attributes of the same node
|| drag.source.attribute.isLink // already connected attribute
|| (!drag.source.isList && outputDragTarget.isList) // connection between a list and a simple attribute
|| (drag.source.isList && childrenRepeater.count) // source/target are lists but target already has children
|| drag.source.connectorType == "output"
)
{
drag.accepted = false
}
outputDropArea.acceptableDrop = drag.accepted
}
onExited: {
acceptableDrop = false
}
onDropped: {
_reconstruction.addEdge(outputDragTarget.attribute, drag.source.attribute)
}
}
Item {
id: outputDragTarget
objectName: "edgeConnector"
readonly property string connectorType: "output"
readonly property alias attribute: root.attribute
readonly property alias nodeItem: root.nodeItem
readonly property bool isOutput: attribute.isOutput
readonly property alias isList: root.isList
property bool dropAccepted: false
anchors.horizontalCenter: parent.horizontalCenter
anchors.verticalCenter: parent.verticalCenter
width: 4
height: 4
Drag.keys: [outputDragTarget.objectName]
Drag.active: outputConnectMA.drag.active
Drag.hotSpot.x: width*0.5
Drag.hotSpot.y: height*0.5
}
MouseArea {
id: outputConnectMA
drag.target: outputDragTarget
drag.threshold: 0
anchors.fill: parent
// use the same negative margins as DropArea to ease pin selection
anchors.margins: outputDropArea.anchors.margins
anchors.leftMargin: outputDropArea.anchors.leftMargin
anchors.rightMargin: outputDropArea.anchors.rightMargin
onPressed: root.pressed(mouse)
onReleased: outputDragTarget.Drag.drop()
hoverEnabled: true
}
Edge {
id: outputConnectEdge
visible: false
point1x: parent.width / 2
point1y: parent.width / 2
point2x: outputDragTarget.x + outputDragTarget.width/2
point2y: outputDragTarget.y + outputDragTarget.height/2
color: nameLabel.color
thickness: outputDragTarget.dropAccepted ? 2 : 1
}
}
state: (inputConnectMA.pressed && !attribute.isLink) ? "DraggingInput" : outputConnectMA.pressed ? "DraggingOutput" : ""
states: [
State {
name: ""
AnchorChanges {
target: outputDragTarget
anchors.horizontalCenter: outputAnchor.horizontalCenter
anchors.verticalCenter: outputAnchor.verticalCenter
}
AnchorChanges {
target: inputDragTarget
anchors.horizontalCenter: inputAnchor.horizontalCenter
anchors.verticalCenter: inputAnchor.verticalCenter
}
PropertyChanges {
target: inputDragTarget
x: 0
y: 0
}
PropertyChanges {
target: outputDragTarget
x: 0
y: 0
}
},
State {
name: "DraggingInput"
AnchorChanges {
target: inputDragTarget
anchors.horizontalCenter: undefined
anchors.verticalCenter: undefined
}
PropertyChanges {
target: inputConnectEdge
z: 100
visible: true
}
StateChangeScript {
script: {
var pos = inputDragTarget.mapFromItem(inputConnectMA, inputConnectMA.mouseX, inputConnectMA.mouseY);
inputDragTarget.x = pos.x - inputDragTarget.width/2;
inputDragTarget.y = pos.y - inputDragTarget.height/2;
}
}
},
State {
name: "DraggingOutput"
AnchorChanges {
target: outputDragTarget
anchors.horizontalCenter: undefined
anchors.verticalCenter: undefined
}
PropertyChanges {
target: outputConnectEdge
z: 100
visible: true
}
StateChangeScript {
script: {
var pos = outputDragTarget.mapFromItem(outputConnectMA, outputConnectMA.mouseX, outputConnectMA.mouseY);
outputDragTarget.x = pos.x - outputDragTarget.width/2;
outputDragTarget.y = pos.y - outputDragTarget.height/2;
}
}
}
]
}