#include <HistoryDock.h>

Inheritance diagram for HistoryDock:

Public Member Functions
	HistoryDock ()

QString	observerName () override

void	setCanvas (KoCanvasBase *canvas) override

void	unsetCanvas () override

Public Member Functions inherited from KoCanvasObserverBase
	KoCanvasObserverBase ()

KoCanvasBase *	observedCanvas () const

void	setObservedCanvas (KoCanvasBase *canvas)

void	unsetObservedCanvas ()

virtual	~KoCanvasObserverBase ()

Private Attributes
KisUndoView *	m_undoView

Additional Inherited Members

Detailed Description

Definition at line 25 of file HistoryDock.h.

Constructor & Destructor Documentation

◆ HistoryDock()

HistoryDock::HistoryDock ( )

Definition at line 17 of file HistoryDock.cpp.

    : QDockWidget()
    , m_undoView(new KisUndoView(this))
{
    setWidget(m_undoView);
    setWindowTitle(i18n("Undo History"));
}

References m_undoView.

Member Function Documentation

◆ observerName()

QString HistoryDock::observerName ( )

inlineoverridevirtual

Reimplemented from KoCanvasObserverBase.

Definition at line 30 of file HistoryDock.h.

30{ return "HistoryDock"; }

◆ setCanvas()

void HistoryDock::setCanvas ( KoCanvasBase * canvas )

overridevirtual

re-implement this method in your canvas observer. It will be called whenever a canvas becomes active. Note that you are responsible for not connecting more than one time to the signals of a canvas or any of the QObjects you can access through the canvas.

Implements KoCanvasObserverBase.

Definition at line 25 of file HistoryDock.cpp.

{
    setEnabled(canvas != 0);
    QPointer<KisCanvas2> myCanvas = dynamic_cast<KisCanvas2*>(canvas);
    if (myCanvas
            && myCanvas->shapeController()
            && myCanvas->shapeController()->resourceManager()
            && myCanvas->shapeController()->resourceManager()->undoStack()) {
        KUndo2Stack* undoStack = myCanvas->shapeController()->resourceManager()->undoStack();
 
        m_undoView->setStack(undoStack);
    }
    m_undoView->setCanvas( myCanvas );
 
}

References m_undoView, KisUndoView::setCanvas(), and KisUndoView::setStack().

◆ unsetCanvas()

void HistoryDock::unsetCanvas ( )

overridevirtual

Re-implement to notify the observer that its canvas is no longer among the living. The daisies, it is pushing up. This means you don't have to disconnect, it's dead.

The old canvas should be deleted already, so if you stored a pointer to it, don't touch!

Note that currently there is a bug where in certain specific circumstances unsetCanvas can be called when it shouldn't, see for example KWStatisticsDocker for a workaround for this problem.

Implements KoCanvasObserverBase.

Definition at line 41 of file HistoryDock.cpp.

{
    setEnabled(false);
    m_undoView->setStack(0);
}

References m_undoView, and KisUndoView::setStack().

Member Data Documentation

◆ m_undoView

KisUndoView* HistoryDock::m_undoView

private

Definition at line 35 of file HistoryDock.h.

The documentation for this class was generated from the following files:

plugins/dockers/historydocker/HistoryDock.h
plugins/dockers/historydocker/HistoryDock.cpp

Public Member Functions

Private Attributes