QGIS API Documentation 3.34.0-Prizren (ffbdd678812)
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qgslayoutitemmapoverview.h
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1/***************************************************************************
2 qgslayoutitemmapoverview.h
3 --------------------
4 begin : October 2017
5 copyright : (C) 2017 by Nyall Dawson
6 email : nyall dot dawson at gmail dot com
7 ***************************************************************************/
8
9/***************************************************************************
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
15 * *
16 ***************************************************************************/
17
18#ifndef QgsLayoutItemMapOVERVIEW_H
19#define QgsLayoutItemMapOVERVIEW_H
20
21#include "qgis_core.h"
22#include "qgis_sip.h"
24#include <QString>
25#include <QObject>
26#include <QPainter>
27
28class QDomDocument;
29class QDomElement;
31class QgsFillSymbol;
32
43{
44 public:
45
51
60 void addOverview( QgsLayoutItemMapOverview *overview SIP_TRANSFER );
61
68 void removeOverview( const QString &overviewId );
69
76 void moveOverviewUp( const QString &overviewId );
77
84 void moveOverviewDown( const QString &overviewId );
85
89 QgsLayoutItemMapOverview *overview( const QString &overviewId ) const;
90
94 QgsLayoutItemMapOverview *overview( int index ) const;
95
101
105 QList< QgsLayoutItemMapOverview * > asList() const;
106 bool readXml( const QDomElement &elem, const QDomDocument &doc, const QgsReadWriteContext &context ) override;
107
114 QList< QgsMapLayer * > modifyMapLayerList( const QList< QgsMapLayer * > &layers );
115
116};
117
127{
128 Q_OBJECT
129
130 public:
131
137 QgsLayoutItemMapOverview( const QString &name, QgsLayoutItemMap *map );
139
140 void draw( QPainter *painter ) override;
141 bool writeXml( QDomElement &elem, QDomDocument &doc, const QgsReadWriteContext &context ) const override;
142 bool readXml( const QDomElement &itemElem, const QDomDocument &doc, const QgsReadWriteContext &context ) override;
143 void finalizeRestoreFromXml() override;
144 bool usesAdvancedEffects() const override;
145
150 void setLinkedMap( QgsLayoutItemMap *map );
151
156 QgsLayoutItemMap *linkedMap();
157
163 void setFrameSymbol( QgsFillSymbol *symbol SIP_TRANSFER );
164
169 QgsFillSymbol *frameSymbol();
170
176 const QgsFillSymbol *frameSymbol() const; SIP_SKIP
177
182 QPainter::CompositionMode blendMode() const { return mBlendMode; }
183
188 void setBlendMode( QPainter::CompositionMode mode );
189
195 bool inverted() const { return mInverted; }
196
202 void setInverted( bool inverted );
203
208 bool centered() const { return mCentered; }
209
214 void setCentered( bool centered );
215
220 void connectSignals();
221
231 QgsVectorLayer *asMapLayer();
232
233 QgsMapLayer *mapLayer() override;
234
235 bool accept( QgsStyleEntityVisitorInterface *visitor ) const override;
236
237 public slots:
238
242 void overviewExtentChanged();
243
244 private:
245
246 QgsLayoutItemMapOverview() = delete;
247
248 QString mFrameMapUuid;
249 QPointer< QgsLayoutItemMap > mFrameMap;
250
252 std::unique_ptr< QgsFillSymbol > mFrameSymbol;
253
255 QPainter::CompositionMode mBlendMode = QPainter::CompositionMode_SourceOver;
256
258 bool mInverted = false;
259
261 bool mCentered = false;
262
263 std::unique_ptr< QgsVectorLayer > mExtentLayer;
264
266 void createDefaultFrameSymbol();
267
268};
269
270#endif // QgsLayoutItemMapOVERVIEW_H
A fill symbol type, for rendering Polygon and MultiPolygon geometries.
A collection of map items which are drawn above the map content in a QgsLayoutItemMap.
virtual bool writeXml(QDomElement &element, QDomDocument &doc, const QgsReadWriteContext &context) const
Stores the state of the item stack in a DOM node, where element is the DOM element corresponding to a...
virtual void finalizeRestoreFromXml()
Called after all pending items have been restored from XML.
virtual bool readXml(const QDomElement &element, const QDomDocument &doc, const QgsReadWriteContext &context)=0
Sets the item stack's state from a DOM document, where element is a DOM node corresponding to a 'Layo...
QList< QgsLayoutItemMapItem * > asList() const
Returns a list of QgsLayoutItemMapItems contained by the stack.
QgsLayoutItemMapItem & operator[](int index)
Returns a reference to an item at the specified index within the stack.
An item which is drawn inside a QgsLayoutItemMap, e.g., a grid or map overview.
A collection of overviews which are drawn above the map content in a QgsLayoutItemMap.
An individual overview which is drawn above the map content in a QgsLayoutItemMap,...
QPainter::CompositionMode blendMode() const
Retrieves the blending mode used for drawing the overview.
bool centered() const
Returns whether the extent of the map is forced to center on the overview.
~QgsLayoutItemMapOverview() override
bool inverted() const
Returns whether the overview frame is inverted, ie, whether the shaded area is drawn outside the exte...
Layout graphical items for displaying a map.
Base class for all map layer types.
Definition qgsmaplayer.h:74
The class is used as a container of context for various read/write operations on other objects.
An interface for classes which can visit style entity (e.g.
Represents a vector layer which manages a vector based data sets.
#define SIP_SKIP
Definition qgis_sip.h:126
#define SIP_TRANSFER
Definition qgis_sip.h:36