com.xilinx.rapidwright.gui

Class SchematicScene

Object

com.trolltech.qt.internal.QSignalEmitterInternal

com.trolltech.qt.QSignalEmitter

com.trolltech.qt.QtJambiObject

com.trolltech.qt.core.QObject

com.trolltech.qt.gui.QGraphicsScene

com.xilinx.rapidwright.gui.SchematicScene

All Implemented Interfaces:

com.trolltech.qt.QtJambiInterface

public class SchematicScene
extends com.trolltech.qt.gui.QGraphicsScene

Property Summary

Properties inherited from class com.trolltech.qt.core.QObject

userProperty

Nested Class Summary

Nested classes/interfaces inherited from class com.trolltech.qt.gui.QGraphicsScene

com.trolltech.qt.gui.QGraphicsScene.ItemIndexMethod, com.trolltech.qt.gui.QGraphicsScene.SceneLayer, com.trolltech.qt.gui.QGraphicsScene.SceneLayers

Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter

com.trolltech.qt.QSignalEmitter.AbstractSignal, com.trolltech.qt.QSignalEmitter.PrivateSignal0, com.trolltech.qt.QSignalEmitter.PrivateSignal1<A>, com.trolltech.qt.QSignalEmitter.PrivateSignal2<A,B>, com.trolltech.qt.QSignalEmitter.PrivateSignal3<A,B,C>, com.trolltech.qt.QSignalEmitter.PrivateSignal4<A,B,C,D>, com.trolltech.qt.QSignalEmitter.PrivateSignal5<A,B,C,D,E>, com.trolltech.qt.QSignalEmitter.PrivateSignal6<A,B,C,D,E,F>, com.trolltech.qt.QSignalEmitter.PrivateSignal7<A,B,C,D,E,F,G>, com.trolltech.qt.QSignalEmitter.PrivateSignal8<A,B,C,D,E,F,G,H>, com.trolltech.qt.QSignalEmitter.PrivateSignal9<A,B,C,D,E,F,G,H,I>, com.trolltech.qt.QSignalEmitter.Signal0, com.trolltech.qt.QSignalEmitter.Signal1<A>, com.trolltech.qt.QSignalEmitter.Signal2<A,B>, com.trolltech.qt.QSignalEmitter.Signal3<A,B,C>, com.trolltech.qt.QSignalEmitter.Signal4<A,B,C,D>, com.trolltech.qt.QSignalEmitter.Signal5<A,B,C,D,E>, com.trolltech.qt.QSignalEmitter.Signal6<A,B,C,D,E,F>, com.trolltech.qt.QSignalEmitter.Signal7<A,B,C,D,E,F,G>, com.trolltech.qt.QSignalEmitter.Signal8<A,B,C,D,E,F,G,H>, com.trolltech.qt.QSignalEmitter.Signal9<A,B,C,D,E,F,G,H,I>

Nested classes/interfaces inherited from class com.trolltech.qt.internal.QSignalEmitterInternal

com.trolltech.qt.internal.QSignalEmitterInternal.AbstractSignalInternal

Field Summary

Fields

Modifier and Type	Field and Description
com.trolltech.qt.QSignalEmitter.Signal0	cellDrawn
com.trolltech.qt.QSignalEmitter.Signal0	layoutFinished Emitted when a background layout finishes or is cancelled
com.trolltech.qt.QSignalEmitter.Signal1<String>	layoutStarted Emitted with the cell's name when a background layout starts
com.trolltech.qt.QSignalEmitter.Signal1<String>	objectSelected

Fields inherited from class com.trolltech.qt.gui.QGraphicsScene

changed, sceneRectChanged, selectionChanged

Constructor Summary

Constructors

Constructor and Description
SchematicScene(EDIFNetlist netlist)

Method Summary

Modifier and Type	Method and Description
void	cancelLayout() Abandons a layout that is still running.
void	drawCell(EDIFHierCellInst cellInst, boolean zoomFit) Draws a cell's schematic.
boolean	isLayoutInProgress() Whether a schematic is currently being laid out in the background
void	mousePressEvent(com.trolltech.qt.gui.QGraphicsSceneMouseEvent event)
void	renderAll() Renders the whole schematic at full detail no matter how the view is positioned.
void	renderSchematic()
void	renderSettledViewport() Slot for SchematicScene.viewportSettleTimer; not meant to be called directly.
void	selectObject(String lookup, boolean clearPreviousSelections)
void	viewportChanged() Called by SchematicView whenever the visible part of the scene changes.

Methods inherited from class com.trolltech.qt.gui.QGraphicsScene

activeWindow, addEllipse, addEllipse, addEllipse, addEllipse, addEllipse, addEllipse, addItem, addLine, addLine, addLine, addLine, addPath, addPath, addPath, addPixmap, addPolygon, addPolygon, addPolygon, addRect, addRect, addRect, addRect, addRect, addRect, addSimpleText, addSimpleText, addText, addText, addWidget, addWidget, addWidget, advance, backgroundBrush, bspTreeDepth, clear, clearFocus, clearSelection, collidingItems, collidingItems, createItemGroup, destroyItemGroup, event, eventFilter, focusItem, font, foregroundBrush, fromNativePointer, hasFocus, height, inputMethodQuery, invalidate, invalidate, invalidate, invalidate, invalidate, invalidate, invalidate, isSortCacheEnabled, itemAt, itemAt, itemIndexMethod, items, items, items, items, items, items, items, items, items, items, itemsBoundingRect, mouseGrabberItem, palette, removeItem, render, render, render, render, sceneRect, selectedItems, selectionArea, setActiveWindow, setBackgroundBrush, setBspTreeDepth, setFocus, setFocus, setFocusItem, setFocusItem, setFont, setForegroundBrush, setItemIndexMethod, setPalette, setSceneRect, setSceneRect, setSelectionArea, setSelectionArea, setSortCacheEnabled, setStickyFocus, setStyle, stickyFocus, style, update, update, update, views, width

Methods inherited from class com.trolltech.qt.core.QObject

blockSignals, children, connectSlotsByName, disposeLater, dumpObjectInfo, dumpObjectTree, dynamicPropertyNames, findChild, findChild, findChild, findChildren, findChildren, findChildren, findChildren, indexOfProperty, installEventFilter, isWidgetType, killTimer, moveToThread, objectName, parent, properties, property, removeEventFilter, setObjectName, setParent, setProperty, signalsBlocked, startTimer, thread, toString, userProperty

Methods inherited from class com.trolltech.qt.QtJambiObject

disableGarbageCollection, dispose, equals, nativeId, nativePointer, reassignNativeResources, reenableGarbageCollection, setJavaOwnership, tr, tr, tr

Methods inherited from class com.trolltech.qt.QSignalEmitter

disconnect, disconnect, signalSender

Methods inherited from class Object

getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

objectSelected

public com.trolltech.qt.QSignalEmitter.Signal1<String> objectSelected

cellDrawn

public com.trolltech.qt.QSignalEmitter.Signal0 cellDrawn

layoutStarted

public com.trolltech.qt.QSignalEmitter.Signal1<String> layoutStarted

Emitted with the cell's name when a background layout starts

layoutFinished

public com.trolltech.qt.QSignalEmitter.Signal0 layoutFinished

Emitted when a background layout finishes or is cancelled

Constructor Detail

SchematicScene

public SchematicScene(EDIFNetlist netlist)

Method Detail

drawCell

public void drawCell(EDIFHierCellInst cellInst,
                     boolean zoomFit)

Draws a cell's schematic. Laying the graph out takes seconds on a large cell and, unlike building and rendering it, cannot be broken into small pieces -- ELK reports progress in bursts, with over 90% of a layout spent inside single steps longer than 100ms. Running it on the calling thread would therefore freeze the window for the whole layout, so it is handed to a worker instead. The previously drawn schematic stays on screen and the window stays alive until the new layout is ready; see SchematicScene.cancelLayout().

Parameters:

cellInst - The cell instance to draw.

zoomFit - Whether to zoom to fit the new schematic once it is drawn.

cancelLayout

public void cancelLayout()

Abandons a layout that is still running. ELK only checks for cancellation between steps, so the worker may keep going for a little while; its result is discarded either way. The schematic on screen is left alone but stops being redrawn as the view moves, until the next SchematicScene.drawCell(EDIFHierCellInst, boolean) replaces it.

isLayoutInProgress

public boolean isLayoutInProgress()

Whether a schematic is currently being laid out in the background

viewportChanged

public void viewportChanged()

Called by SchematicView whenever the visible part of the scene changes. A single turn of the mouse wheel makes the view scale and then scroll, so it reaches here more than once, and a gesture is many turns in quick succession. Redrawing on each one costs about a tenth of a second on a large schematic and makes zooming feel like it is dragging behind the mouse, so the redraw waits until the view stops moving. Qt keeps scaling the items already on screen in the meantime, so the picture stays live throughout.

renderSettledViewport

public void renderSettledViewport()

Slot for SchematicScene.viewportSettleTimer; not meant to be called directly.

renderAll

public void renderAll()

Renders the whole schematic at full detail no matter how the view is positioned. Used when exporting, where the output must contain everything rather than what happens to be on screen.

renderSchematic

public void renderSchematic()

mousePressEvent

public void mousePressEvent(com.trolltech.qt.gui.QGraphicsSceneMouseEvent event)

Overrides:

mousePressEvent in class com.trolltech.qt.gui.QGraphicsScene

selectObject

public void selectObject(String lookup,
                         boolean clearPreviousSelections)