#include <overviewdocker_dock.h>

Inheritance diagram for OverviewDockerDock:

Public Member Functions
QString	observerName () override

	OverviewDockerDock ()

void	setCanvas (KoCanvasBase *canvas) override

void	unsetCanvas () override

	~OverviewDockerDock () override

Public Member Functions inherited from KoCanvasObserverBase
	KoCanvasObserverBase ()

KoCanvasBase *	observedCanvas () const

void	setObservedCanvas (KoCanvasBase *canvas)

void	unsetObservedCanvas ()

virtual	~KoCanvasObserverBase ()

Private Attributes
QPointer< KisCanvas2 >	m_canvas

OverviewDockerPage *	m_page {nullptr}

Additional Inherited Members

Detailed Description

Definition at line 20 of file overviewdocker_dock.h.

Constructor & Destructor Documentation

◆ OverviewDockerDock()

OverviewDockerDock::OverviewDockerDock ( )

Definition at line 12 of file overviewdocker_dock.cpp.

    : QDockWidget(i18n("Overview"))
{
    m_page = new OverviewDockerPage(this);
 
    setWidget(m_page);
 
    setEnabled(false);
}

References m_page.

◆ ~OverviewDockerDock()

OverviewDockerDock::~OverviewDockerDock ( )

override

Definition at line 22 of file overviewdocker_dock.cpp.

23{

24}

Member Function Documentation

◆ observerName()

QString OverviewDockerDock::observerName ( )

inlineoverridevirtual

Reimplemented from KoCanvasObserverBase.

Definition at line 25 of file overviewdocker_dock.h.

25{ return "OverviewDockerDock"; }

◆ setCanvas()

void OverviewDockerDock::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 26 of file overviewdocker_dock.cpp.

{
    if(m_canvas == canvas)
        return;
 
    setEnabled(canvas != nullptr);
 
    if (m_canvas) {
        m_canvas->disconnectCanvasObserver(this);
        m_canvas->image()->disconnect(this);
    }
 
    m_canvas = dynamic_cast<KisCanvas2*>(canvas);
 
    m_page->setCanvas(canvas);
}

References m_canvas, m_page, and OverviewDockerPage::setCanvas().

◆ unsetCanvas()

void OverviewDockerDock::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 43 of file overviewdocker_dock.cpp.

{
    setEnabled(false);
    m_canvas = nullptr;
    m_page->setCanvas(0);
}

References m_canvas, m_page, and OverviewDockerPage::setCanvas().

Member Data Documentation

◆ m_canvas

QPointer<KisCanvas2> OverviewDockerDock::m_canvas

private

Definition at line 31 of file overviewdocker_dock.h.

◆ m_page

OverviewDockerPage* OverviewDockerDock::m_page {nullptr}