QGIS API Documentation
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src
core
effects
qgseffectstack.h
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/***************************************************************************
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qgseffectstack.h
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----------------
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begin : December 2014
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copyright : (C) 2014 Nyall Dawson
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email : nyall dot dawson at gmail dot com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSEFFECTSTACK_H
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#define QGSEFFECTSTACK_H
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#include "qgis_core.h"
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#include "
qgis_sip.h
"
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#include "
qgspainteffect.h
"
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class
CORE_EXPORT
QgsEffectStack
:
public
QgsPaintEffect
SIP_NODEFAULTCTORS
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{
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public
:
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static
QgsPaintEffect
*create(
const
QVariantMap &map )
SIP_FACTORY
;
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QgsEffectStack
() =
default
;
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QgsEffectStack
(
const
QgsEffectStack
&other );
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QgsEffectStack
(
QgsEffectStack
&&other )
SIP_SKIP
;
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explicit
QgsEffectStack
(
const
QgsPaintEffect
&effect );
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~QgsEffectStack
()
override
;
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QString
type
()
const override
{
return
QStringLiteral(
"effectStack"
); }
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QgsEffectStack
*
clone
() const override
SIP_FACTORY
;
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bool
saveProperties( QDomDocument &doc, QDomElement &element ) const override;
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bool
readProperties( const QDomElement &element ) override;
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QVariantMap properties() const override;
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void
readProperties( const QVariantMap &props ) override;
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void
appendEffect(
QgsPaintEffect
*effect
SIP_TRANSFER
);
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bool
insertEffect(
int
index,
QgsPaintEffect
*effect
SIP_TRANSFER
);
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bool
changeEffect(
int
index,
QgsPaintEffect
*effect
SIP_TRANSFER
);
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QgsPaintEffect
*takeEffect(
int
index
SIP_TRANSFERBACK
);
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QList<
QgsPaintEffect
* > *effectList();
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int
count()
const
{
return
mEffectList.count(); }
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QgsPaintEffect
*effect(
int
index )
const
;
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QgsEffectStack
&operator=(
const
QgsEffectStack
&rhs );
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QgsEffectStack
&operator=(
QgsEffectStack
&&other )
SIP_SKIP
;
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protected
:
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void
draw
(
QgsRenderContext
&context )
override
;
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private
:
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QList< QgsPaintEffect * > mEffectList;
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void
clearStack();
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};
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#endif
// QGSEFFECTSTACK_H
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QgsEffectStack
A paint effect which consists of a stack of other chained paint effects.
Definition
qgseffectstack.h:44
QgsEffectStack::QgsEffectStack
QgsEffectStack()=default
Constructor for empty QgsEffectStack.
QgsEffectStack::type
QString type() const override
Returns the effect type.
Definition
qgseffectstack.h:77
QgsPaintEffect
Base class for visual effects which can be applied to QPicture drawings.
Definition
qgspainteffect.h:52
QgsPaintEffect::QgsEffectStack
friend class QgsEffectStack
Definition
qgspainteffect.h:307
QgsPaintEffect::clone
virtual QgsPaintEffect * clone() const =0
Duplicates an effect by creating a deep copy of the effect.
QgsPaintEffect::draw
virtual void draw(QgsRenderContext &context)=0
Handles drawing of the effect's result on to the specified render context.
QgsRenderContext
Contains information about the context of a rendering operation.
Definition
qgsrendercontext.h:61
qgis_sip.h
SIP_SKIP
#define SIP_SKIP
Definition
qgis_sip.h:126
SIP_TRANSFER
#define SIP_TRANSFER
Definition
qgis_sip.h:36
SIP_TRANSFERBACK
#define SIP_TRANSFERBACK
Definition
qgis_sip.h:48
SIP_FACTORY
#define SIP_FACTORY
Definition
qgis_sip.h:76
SIP_NODEFAULTCTORS
#define SIP_NODEFAULTCTORS
Definition
qgis_sip.h:101
qgspainteffect.h
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