Scheme Editor (schemeedit
)
Scheme Editor Widget
-
class
orangecanvas.document.schemeedit.
SchemeEditWidget
(parent=None) Bases:
PyQt5.QtWidgets.QWidget
A widget for editing a
Scheme
instance.-
undoAvailable
(bool)
-
redoAvailable
(bool)
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modificationChanged
(bool)
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undoCommandAdded
()
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selectionChanged
()
-
titleChanged
()
-
pathChanged
()
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undoAvailable
Undo command has become available/unavailable.
-
redoAvailable
Redo command has become available/unavailable.
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toolbarActions
() Return a list of actions that can be inserted into a toolbar. At the moment these are:
- ‘Zoom’ action
- ‘Clean up’ action (align to grid)
- ‘New text annotation’ action (with a size menu)
- ‘New arrow annotation’ action (with a color menu)
Return a list of actions that can be inserted into a QMenuBar.
-
isModified
() Is the document is a modified state.
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setModified
(modified) Set the document modified state.
-
modified
Is the document is a modified state.
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isModifiedStrict
() Is the document modified.
Run a strict check against all node properties as they were at the time when the last call to setModified(True) was made.
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setQuickMenuTriggers
(triggers) Set quick menu trigger flags.
Flags can be a bitwise or of:
- SchemeEditWidget.NoTrigeres
- SchemeEditWidget.RightClicked
- SchemeEditWidget.DoubleClicked
- SchemeEditWidget.SpaceKey
- SchemeEditWidget.AnyKey
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quickMenuTriggers
() Return quick menu trigger flags.
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setChannelNamesVisible
(visible) Set channel names visibility state. When enabled the links in the view will have a source/sink channel names displayed over them.
-
channelNamesVisible
() Return the channel name visibility state.
-
setNodeAnimationEnabled
(enabled) Set the node item animation enabled state.
-
nodeAnimationEnabled
() Return the node item animation enabled state.
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undoStack
() Return the undo stack.
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setPath
(path) Set the path associated with the current scheme.
Note
Calling setScheme will invalidate the path (i.e. set it to an empty string)
-
path
() Return the path associated with the scheme
-
setScheme
(scheme) Set the
Scheme
instance to display/edit.
-
ensureVisible
(node) Scroll the contents of the viewport so that node is visible.
Parameters: node (SchemeNode) –
-
scheme
() Return the
Scheme
edited by the widget.
-
scene
() Return the
QGraphicsScene
instance used to display the current scheme.
-
view
() Return the
QGraphicsView
instance used to display the current scene.
-
quickMenu
() Return a
QuickMenu
popup menu instance for new node creation.
-
setTitle
(title) Set the scheme title.
-
setDescription
(description) Set the scheme description string.
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addNode
(node) Add a new node (
SchemeNode
) to the document.
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createNewNode
(description, title=None, position=None) Create a new
SchemeNode
and add it to the document. The new node is constructed usingnewNodeHelper()
method
-
newNodeHelper
(description, title=None, position=None) Return a new initialized
SchemeNode
. If title and position are not supplied they are initialized to sensible defaults.
-
enumerateTitle
(title) Enumerate a title string (i.e. add a number in parentheses) so it is not equal to any node title in the current scheme.
-
nextPosition
() Return the next default node position as a (x, y) tuple. This is a position left of the last added node.
-
removeNode
(node) Remove a node (
SchemeNode
) from the scheme
-
renameNode
(node, title) Rename a node (
SchemeNode
) to title.
-
addLink
(link) Add a link (
SchemeLink
) to the scheme.
-
removeLink
(link) Remove a link (
SchemeLink
) from the scheme.
-
addAnnotation
(annotation) Add annotation (
BaseSchemeAnnotation
) to the scheme
-
removeAnnotation
(annotation) Remove annotation (
BaseSchemeAnnotation
) from the scheme.
-
removeSelected
() Remove all selected items in the scheme.
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selectAll
() Select all selectable items in the scheme.
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toggleZoom
(zoom) Toggle view zoom. If zoom is True the scheme is displayed scaled to 150%.
-
alignToGrid
() Align nodes to a grid.
-
focusNode
() Return the current focused
SchemeNode
orNone
if no node has focus.
-
selectedNodes
() Return all selected
SchemeNode
items.
-
selectedAnnotations
() Return all selected
BaseSchemeAnnotation
items.
-
openSelected
() Open (show and raise) all widgets for the current selected nodes.
-
editNodeTitle
(node) Edit (rename) the node’s title. Opens an input dialog.
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