QGIS API Documentation 3.38.0-Grenoble (exported)
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qgscalloutwidget.cpp
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1/***************************************************************************
2 qgscalloutwidget.cpp
3 ---------------------
4 begin : July 2019
5 copyright : (C) 2019 by Nyall Dawson
6 email : nyall dot dawson at gmail dot com
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
15
16#include "qgscalloutwidget.h"
17#include "qgsvectorlayer.h"
18#include "qgsexpressioncontextutils.h"
19#include "qgsunitselectionwidget.h"
20#include "qgscallout.h"
21#include "qgsnewauxiliaryfielddialog.h"
22#include "qgsnewauxiliarylayerdialog.h"
23#include "qgsauxiliarystorage.h"
24#include "qgslinesymbol.h"
25#include "qgsfillsymbol.h"
26
27QgsExpressionContext QgsCalloutWidget::createExpressionContext() const
28{
29 if ( auto *lExpressionContext = mContext.expressionContext() )
30 return *lExpressionContext;
31
32 QgsExpressionContext expContext( mContext.globalProjectAtlasMapLayerScopes( vectorLayer() ) );
33 QgsExpressionContextScope *symbolScope = QgsExpressionContextUtils::updateSymbolScope( nullptr, new QgsExpressionContextScope() );
34 symbolScope->addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_SYMBOL_COLOR, QColor(), true ) );
35 expContext << symbolScope;
36
37 // additional scopes
38 const auto constAdditionalExpressionContextScopes = mContext.additionalExpressionContextScopes();
39 for ( const QgsExpressionContextScope &scope : constAdditionalExpressionContextScopes )
40 {
41 expContext.appendScope( new QgsExpressionContextScope( scope ) );
42 }
43
44 //TODO - show actual value
45 expContext.setOriginalValueVariable( QVariant() );
46
47 expContext.setHighlightedVariables( QStringList() << QgsExpressionContext::EXPR_ORIGINAL_VALUE << QgsExpressionContext::EXPR_SYMBOL_COLOR );
48
49 return expContext;
50}
51
52void QgsCalloutWidget::setContext( const QgsSymbolWidgetContext &context )
53{
54 mContext = context;
55 const auto unitSelectionWidgets = findChildren<QgsUnitSelectionWidget *>();
56 for ( QgsUnitSelectionWidget *unitWidget : unitSelectionWidgets )
57 {
58 unitWidget->setMapCanvas( mContext.mapCanvas() );
59 }
60 const auto symbolButtonWidgets = findChildren<QgsSymbolButton *>();
61 for ( QgsSymbolButton *symbolWidget : symbolButtonWidgets )
62 {
63 symbolWidget->setMapCanvas( mContext.mapCanvas() );
64 symbolWidget->setMessageBar( mContext.messageBar() );
65 }
66}
67
68QgsSymbolWidgetContext QgsCalloutWidget::context() const
69{
70 return mContext;
71}
72
73void QgsCalloutWidget::registerDataDefinedButton( QgsPropertyOverrideButton *button, QgsCallout::Property key )
74{
75 button->init( static_cast< int >( key ), callout()->dataDefinedProperties(), QgsCallout::propertyDefinitions(), mVectorLayer, true );
76 connect( button, &QgsPropertyOverrideButton::changed, this, &QgsCalloutWidget::updateDataDefinedProperty );
77 connect( button, &QgsPropertyOverrideButton::createAuxiliaryField, this, &QgsCalloutWidget::createAuxiliaryField );
78
79 button->registerExpressionContextGenerator( this );
80}
81
82void QgsCalloutWidget::createAuxiliaryField()
83{
84 // try to create an auxiliary layer if not yet created
85 if ( !mVectorLayer->auxiliaryLayer() )
86 {
87 QgsNewAuxiliaryLayerDialog dlg( mVectorLayer, this );
88 dlg.exec();
89 }
90
91 // return if still not exists
92 if ( !mVectorLayer->auxiliaryLayer() )
93 return;
94
95 QgsPropertyOverrideButton *button = qobject_cast<QgsPropertyOverrideButton *>( sender() );
96 const QgsCallout::Property key = static_cast< QgsCallout::Property >( button->propertyKey() );
97 const QgsPropertyDefinition def = QgsCallout::propertyDefinitions()[static_cast< int >( key )];
98
99 // create property in auxiliary storage if necessary
100 if ( !mVectorLayer->auxiliaryLayer()->exists( def ) )
101 {
102 mVectorLayer->auxiliaryLayer()->addAuxiliaryField( def );
103 }
104
105 // update property with join field name from auxiliary storage
106 QgsProperty property = button->toProperty();
107 property.setField( QgsAuxiliaryLayer::nameFromProperty( def, true ) );
108 property.setActive( true );
109 button->updateFieldLists();
110 button->setToProperty( property );
111
112 callout()->dataDefinedProperties().setProperty( key, button->toProperty() );
113
114 emit changed();
115}
116
117void QgsCalloutWidget::updateDataDefinedProperty()
118{
119 QgsPropertyOverrideButton *button = qobject_cast<QgsPropertyOverrideButton *>( sender() );
120 const QgsCallout::Property key = static_cast< QgsCallout::Property >( button->propertyKey() );
121 callout()->dataDefinedProperties().setProperty( key, button->toProperty() );
122 emit changed();
123}
124
126
127//
128// QgsSimpleLineCalloutWidget
129//
130
131QgsSimpleLineCalloutWidget::QgsSimpleLineCalloutWidget( QgsVectorLayer *vl, QWidget *parent )
132 : QgsCalloutWidget( parent, vl )
133{
134 setupUi( this );
135
136 // Callout options - to move to custom widgets when multiple callout styles exist
137 mCalloutLineStyleButton->setSymbolType( Qgis::SymbolType::Line );
138 mCalloutLineStyleButton->setDialogTitle( tr( "Callout Symbol" ) );
139 mCalloutLineStyleButton->registerExpressionContextGenerator( this );
140
141 mCalloutLineStyleButton->setLayer( vl );
142 mMinCalloutWidthUnitWidget->setUnits( QgsUnitTypes::RenderUnitList() << Qgis::RenderUnit::Millimeters << Qgis::RenderUnit::MetersInMapUnits << Qgis::RenderUnit::MapUnits << Qgis::RenderUnit::Pixels
143 << Qgis::RenderUnit::Points << Qgis::RenderUnit::Inches );
144 mOffsetFromAnchorUnitWidget->setUnits( QgsUnitTypes::RenderUnitList() << Qgis::RenderUnit::Millimeters << Qgis::RenderUnit::MetersInMapUnits << Qgis::RenderUnit::MapUnits << Qgis::RenderUnit::Pixels
145 << Qgis::RenderUnit::Points << Qgis::RenderUnit::Inches );
146 mOffsetFromLabelUnitWidget->setUnits( QgsUnitTypes::RenderUnitList() << Qgis::RenderUnit::Millimeters << Qgis::RenderUnit::MetersInMapUnits << Qgis::RenderUnit::MapUnits << Qgis::RenderUnit::Pixels
147 << Qgis::RenderUnit::Points << Qgis::RenderUnit::Inches );
148
149 connect( mMinCalloutWidthUnitWidget, &QgsUnitSelectionWidget::changed, this, &QgsSimpleLineCalloutWidget::minimumLengthUnitWidgetChanged );
150 connect( mMinCalloutLengthSpin, static_cast < void ( QDoubleSpinBox::* )( double ) > ( &QDoubleSpinBox::valueChanged ), this, &QgsSimpleLineCalloutWidget::minimumLengthChanged );
151
152 connect( mOffsetFromAnchorUnitWidget, &QgsUnitSelectionWidget::changed, this, &QgsSimpleLineCalloutWidget::offsetFromAnchorUnitWidgetChanged );
153 connect( mOffsetFromAnchorSpin, static_cast < void ( QDoubleSpinBox::* )( double ) > ( &QDoubleSpinBox::valueChanged ), this, &QgsSimpleLineCalloutWidget::offsetFromAnchorChanged );
154 connect( mOffsetFromLabelUnitWidget, &QgsUnitSelectionWidget::changed, this, &QgsSimpleLineCalloutWidget::offsetFromLabelUnitWidgetChanged );
155 connect( mOffsetFromLabelSpin, static_cast < void ( QDoubleSpinBox::* )( double ) > ( &QDoubleSpinBox::valueChanged ), this, &QgsSimpleLineCalloutWidget::offsetFromLabelChanged );
156
157 connect( mDrawToAllPartsCheck, &QCheckBox::toggled, this, &QgsSimpleLineCalloutWidget::drawToAllPartsToggled );
158
159 // Anchor point options
160 mAnchorPointComboBox->addItem( tr( "Pole of Inaccessibility" ), static_cast< int >( QgsCallout::PoleOfInaccessibility ) );
161 mAnchorPointComboBox->addItem( tr( "Point on Exterior" ), static_cast< int >( QgsCallout::PointOnExterior ) );
162 mAnchorPointComboBox->addItem( tr( "Point on Surface" ), static_cast< int >( QgsCallout::PointOnSurface ) );
163 mAnchorPointComboBox->addItem( tr( "Centroid" ), static_cast< int >( QgsCallout::Centroid ) );
164 connect( mAnchorPointComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, &QgsSimpleLineCalloutWidget::mAnchorPointComboBox_currentIndexChanged );
165
166 mLabelAnchorPointComboBox->addItem( tr( "Closest Point" ), static_cast< int >( QgsCallout::LabelPointOnExterior ) );
167 mLabelAnchorPointComboBox->addItem( tr( "Centroid" ), static_cast< int >( QgsCallout::LabelCentroid ) );
168 mLabelAnchorPointComboBox->addItem( tr( "Top Left" ), static_cast< int >( QgsCallout::LabelTopLeft ) );
169 mLabelAnchorPointComboBox->addItem( tr( "Top Center" ), static_cast< int >( QgsCallout::LabelTopMiddle ) );
170 mLabelAnchorPointComboBox->addItem( tr( "Top Right" ), static_cast< int >( QgsCallout::LabelTopRight ) );
171 mLabelAnchorPointComboBox->addItem( tr( "Left Middle" ), static_cast< int >( QgsCallout::LabelMiddleLeft ) );
172 mLabelAnchorPointComboBox->addItem( tr( "Right Middle" ), static_cast< int >( QgsCallout::LabelMiddleRight ) );
173 mLabelAnchorPointComboBox->addItem( tr( "Bottom Left" ), static_cast< int >( QgsCallout::LabelBottomLeft ) );
174 mLabelAnchorPointComboBox->addItem( tr( "Bottom Center" ), static_cast< int >( QgsCallout::LabelBottomMiddle ) );
175 mLabelAnchorPointComboBox->addItem( tr( "Bottom Right" ), static_cast< int >( QgsCallout::LabelBottomRight ) );
176 connect( mLabelAnchorPointComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, &QgsSimpleLineCalloutWidget::mLabelAnchorPointComboBox_currentIndexChanged );
177
178 connect( mCalloutLineStyleButton, &QgsSymbolButton::changed, this, &QgsSimpleLineCalloutWidget::lineSymbolChanged );
179
180 connect( mCalloutBlendComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, &QgsSimpleLineCalloutWidget::mCalloutBlendComboBox_currentIndexChanged );
181}
182
183void QgsSimpleLineCalloutWidget::setCallout( QgsCallout *callout )
184{
185 if ( !callout )
186 return;
187
188 mCallout.reset( dynamic_cast<QgsSimpleLineCallout *>( callout->clone() ) );
189 if ( !mCallout )
190 return;
191
192 mMinCalloutWidthUnitWidget->blockSignals( true );
193 mMinCalloutWidthUnitWidget->setUnit( mCallout->minimumLengthUnit() );
194 mMinCalloutWidthUnitWidget->setMapUnitScale( mCallout->minimumLengthMapUnitScale() );
195 mMinCalloutWidthUnitWidget->blockSignals( false );
196
197 whileBlocking( mMinCalloutLengthSpin )->setValue( mCallout->minimumLength() );
198
199 mOffsetFromAnchorUnitWidget->blockSignals( true );
200 mOffsetFromAnchorUnitWidget->setUnit( mCallout->offsetFromAnchorUnit() );
201 mOffsetFromAnchorUnitWidget->setMapUnitScale( mCallout->offsetFromAnchorMapUnitScale() );
202 mOffsetFromAnchorUnitWidget->blockSignals( false );
203 mOffsetFromLabelUnitWidget->blockSignals( true );
204 mOffsetFromLabelUnitWidget->setUnit( mCallout->offsetFromLabelUnit() );
205 mOffsetFromLabelUnitWidget->setMapUnitScale( mCallout->offsetFromLabelMapUnitScale() );
206 mOffsetFromLabelUnitWidget->blockSignals( false );
207 whileBlocking( mOffsetFromAnchorSpin )->setValue( mCallout->offsetFromAnchor() );
208 whileBlocking( mOffsetFromLabelSpin )->setValue( mCallout->offsetFromLabel() );
209
210 whileBlocking( mCalloutLineStyleButton )->setSymbol( mCallout->lineSymbol()->clone() );
211
212 whileBlocking( mDrawToAllPartsCheck )->setChecked( mCallout->drawCalloutToAllParts() );
213
214 whileBlocking( mAnchorPointComboBox )->setCurrentIndex( mAnchorPointComboBox->findData( static_cast< int >( callout->anchorPoint() ) ) );
215 whileBlocking( mLabelAnchorPointComboBox )->setCurrentIndex( mLabelAnchorPointComboBox->findData( static_cast< int >( callout->labelAnchorPoint() ) ) );
216
217 whileBlocking( mCalloutBlendComboBox )->setBlendMode( mCallout->blendMode() );
218
219 registerDataDefinedButton( mMinCalloutLengthDDBtn, QgsCallout::Property::MinimumCalloutLength );
220 registerDataDefinedButton( mOffsetFromAnchorDDBtn, QgsCallout::Property::OffsetFromAnchor );
221 registerDataDefinedButton( mOffsetFromLabelDDBtn, QgsCallout::Property::OffsetFromLabel );
222 registerDataDefinedButton( mDrawToAllPartsDDBtn, QgsCallout::Property::DrawCalloutToAllParts );
223 registerDataDefinedButton( mAnchorPointDDBtn, QgsCallout::Property::AnchorPointPosition );
224 registerDataDefinedButton( mLabelAnchorPointDDBtn, QgsCallout::Property::LabelAnchorPointPosition );
225 registerDataDefinedButton( mCalloutBlendModeDDBtn, QgsCallout::Property::BlendMode );
226
227 registerDataDefinedButton( mOriginXDDBtn, QgsCallout::Property::OriginX );
228 registerDataDefinedButton( mOriginYDDBtn, QgsCallout::Property::OriginY );
229 registerDataDefinedButton( mDestXDDBtn, QgsCallout::Property::DestinationX );
230 registerDataDefinedButton( mDestYDDBtn, QgsCallout::Property::DestinationY );
231}
232
233void QgsSimpleLineCalloutWidget::setGeometryType( Qgis::GeometryType type )
234{
235 const bool isPolygon = type == Qgis::GeometryType::Polygon;
236 mAnchorPointLbl->setEnabled( isPolygon );
237 mAnchorPointLbl->setVisible( isPolygon );
238 mAnchorPointComboBox->setEnabled( isPolygon );
239 mAnchorPointComboBox->setVisible( isPolygon );
240 mAnchorPointDDBtn->setEnabled( isPolygon );
241 mAnchorPointDDBtn->setVisible( isPolygon );
242}
243
244QgsCallout *QgsSimpleLineCalloutWidget::callout()
245{
246 return mCallout.get();
247}
248
249void QgsSimpleLineCalloutWidget::minimumLengthChanged()
250{
251 mCallout->setMinimumLength( mMinCalloutLengthSpin->value() );
252 emit changed();
253}
254
255void QgsSimpleLineCalloutWidget::minimumLengthUnitWidgetChanged()
256{
257 mCallout->setMinimumLengthUnit( mMinCalloutWidthUnitWidget->unit() );
258 mCallout->setMinimumLengthMapUnitScale( mMinCalloutWidthUnitWidget->getMapUnitScale() );
259 emit changed();
260}
261
262void QgsSimpleLineCalloutWidget::offsetFromAnchorUnitWidgetChanged()
263{
264 mCallout->setOffsetFromAnchorUnit( mOffsetFromAnchorUnitWidget->unit() );
265 mCallout->setOffsetFromAnchorMapUnitScale( mOffsetFromAnchorUnitWidget->getMapUnitScale() );
266 emit changed();
267}
268
269void QgsSimpleLineCalloutWidget::offsetFromAnchorChanged()
270{
271 mCallout->setOffsetFromAnchor( mOffsetFromAnchorSpin->value() );
272 emit changed();
273}
274
275void QgsSimpleLineCalloutWidget::offsetFromLabelUnitWidgetChanged()
276{
277 mCallout->setOffsetFromLabelUnit( mOffsetFromLabelUnitWidget->unit() );
278 mCallout->setOffsetFromLabelMapUnitScale( mOffsetFromLabelUnitWidget->getMapUnitScale() );
279 emit changed();
280}
281
282void QgsSimpleLineCalloutWidget::offsetFromLabelChanged()
283{
284 mCallout->setOffsetFromLabel( mOffsetFromLabelSpin->value() );
285 emit changed();
286}
287
288void QgsSimpleLineCalloutWidget::lineSymbolChanged()
289{
290 mCallout->setLineSymbol( mCalloutLineStyleButton->clonedSymbol< QgsLineSymbol >() );
291 emit changed();
292}
293
294void QgsSimpleLineCalloutWidget::mAnchorPointComboBox_currentIndexChanged( int index )
295{
296 mCallout->setAnchorPoint( static_cast<QgsCallout::AnchorPoint>( mAnchorPointComboBox->itemData( index ).toInt() ) );
297 emit changed();
298}
299
300void QgsSimpleLineCalloutWidget::mLabelAnchorPointComboBox_currentIndexChanged( int index )
301{
302 mCallout->setLabelAnchorPoint( static_cast<QgsCallout::LabelAnchorPoint>( mLabelAnchorPointComboBox->itemData( index ).toInt() ) );
303 emit changed();
304}
305
306void QgsSimpleLineCalloutWidget::mCalloutBlendComboBox_currentIndexChanged( int )
307{
308 mCallout->setBlendMode( mCalloutBlendComboBox->blendMode() );
309 emit changed();
310}
311
312void QgsSimpleLineCalloutWidget::drawToAllPartsToggled( bool active )
313{
314 mCallout->setDrawCalloutToAllParts( active );
315 emit changed();
316}
317
318
319//
320// QgsManhattanLineCalloutWidget
321//
322
323QgsManhattanLineCalloutWidget::QgsManhattanLineCalloutWidget( QgsVectorLayer *vl, QWidget *parent )
324 : QgsSimpleLineCalloutWidget( vl, parent )
325{
326
327}
328
329
330//
331// QgsCurvedLineCalloutWidget
332//
333
334QgsCurvedLineCalloutWidget::QgsCurvedLineCalloutWidget( QgsVectorLayer *vl, QWidget *parent )
335 : QgsCalloutWidget( parent, vl )
336{
337 setupUi( this );
338
339 // Callout options - to move to custom widgets when multiple callout styles exist
340 mCalloutLineStyleButton->setSymbolType( Qgis::SymbolType::Line );
341 mCalloutLineStyleButton->setDialogTitle( tr( "Callout Symbol" ) );
342 mCalloutLineStyleButton->registerExpressionContextGenerator( this );
343
344 mCalloutLineStyleButton->setLayer( vl );
345 mMinCalloutWidthUnitWidget->setUnits( QgsUnitTypes::RenderUnitList() << Qgis::RenderUnit::Millimeters << Qgis::RenderUnit::MetersInMapUnits << Qgis::RenderUnit::MapUnits << Qgis::RenderUnit::Pixels
346 << Qgis::RenderUnit::Points << Qgis::RenderUnit::Inches );
347 mOffsetFromAnchorUnitWidget->setUnits( QgsUnitTypes::RenderUnitList() << Qgis::RenderUnit::Millimeters << Qgis::RenderUnit::MetersInMapUnits << Qgis::RenderUnit::MapUnits << Qgis::RenderUnit::Pixels
348 << Qgis::RenderUnit::Points << Qgis::RenderUnit::Inches );
349 mOffsetFromLabelUnitWidget->setUnits( QgsUnitTypes::RenderUnitList() << Qgis::RenderUnit::Millimeters << Qgis::RenderUnit::MetersInMapUnits << Qgis::RenderUnit::MapUnits << Qgis::RenderUnit::Pixels
350 << Qgis::RenderUnit::Points << Qgis::RenderUnit::Inches );
351
352 connect( mMinCalloutWidthUnitWidget, &QgsUnitSelectionWidget::changed, this, &QgsCurvedLineCalloutWidget::minimumLengthUnitWidgetChanged );
353 connect( mMinCalloutLengthSpin, static_cast < void ( QDoubleSpinBox::* )( double ) > ( &QDoubleSpinBox::valueChanged ), this, &QgsCurvedLineCalloutWidget::minimumLengthChanged );
354
355 connect( mOffsetFromAnchorUnitWidget, &QgsUnitSelectionWidget::changed, this, &QgsCurvedLineCalloutWidget::offsetFromAnchorUnitWidgetChanged );
356 connect( mOffsetFromAnchorSpin, static_cast < void ( QDoubleSpinBox::* )( double ) > ( &QDoubleSpinBox::valueChanged ), this, &QgsCurvedLineCalloutWidget::offsetFromAnchorChanged );
357 connect( mOffsetFromLabelUnitWidget, &QgsUnitSelectionWidget::changed, this, &QgsCurvedLineCalloutWidget::offsetFromLabelUnitWidgetChanged );
358 connect( mOffsetFromLabelSpin, static_cast < void ( QDoubleSpinBox::* )( double ) > ( &QDoubleSpinBox::valueChanged ), this, &QgsCurvedLineCalloutWidget::offsetFromLabelChanged );
359
360 connect( mDrawToAllPartsCheck, &QCheckBox::toggled, this, &QgsCurvedLineCalloutWidget::drawToAllPartsToggled );
361
362 mOrientationComboBox->addItem( tr( "Automatic" ), static_cast< int >( QgsCurvedLineCallout::Automatic ) );
363 mOrientationComboBox->addItem( tr( "Clockwise" ), static_cast< int >( QgsCurvedLineCallout::Clockwise ) );
364 mOrientationComboBox->addItem( tr( "Counter Clockwise" ), static_cast< int >( QgsCurvedLineCallout::CounterClockwise ) );
365 connect( mOrientationComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [ = ]( int index )
366 {
367 mCallout->setOrientation( static_cast<QgsCurvedLineCallout::Orientation>( mOrientationComboBox->itemData( index ).toInt() ) );
368 emit changed();
369 } );
370
371 // Anchor point options
372 mAnchorPointComboBox->addItem( tr( "Pole of Inaccessibility" ), static_cast< int >( QgsCallout::PoleOfInaccessibility ) );
373 mAnchorPointComboBox->addItem( tr( "Point on Exterior" ), static_cast< int >( QgsCallout::PointOnExterior ) );
374 mAnchorPointComboBox->addItem( tr( "Point on Surface" ), static_cast< int >( QgsCallout::PointOnSurface ) );
375 mAnchorPointComboBox->addItem( tr( "Centroid" ), static_cast< int >( QgsCallout::Centroid ) );
376 connect( mAnchorPointComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, &QgsCurvedLineCalloutWidget::mAnchorPointComboBox_currentIndexChanged );
377
378 mLabelAnchorPointComboBox->addItem( tr( "Closest Point" ), static_cast< int >( QgsCallout::LabelPointOnExterior ) );
379 mLabelAnchorPointComboBox->addItem( tr( "Centroid" ), static_cast< int >( QgsCallout::LabelCentroid ) );
380 mLabelAnchorPointComboBox->addItem( tr( "Top Left" ), static_cast< int >( QgsCallout::LabelTopLeft ) );
381 mLabelAnchorPointComboBox->addItem( tr( "Top Center" ), static_cast< int >( QgsCallout::LabelTopMiddle ) );
382 mLabelAnchorPointComboBox->addItem( tr( "Top Right" ), static_cast< int >( QgsCallout::LabelTopRight ) );
383 mLabelAnchorPointComboBox->addItem( tr( "Left Middle" ), static_cast< int >( QgsCallout::LabelMiddleLeft ) );
384 mLabelAnchorPointComboBox->addItem( tr( "Right Middle" ), static_cast< int >( QgsCallout::LabelMiddleRight ) );
385 mLabelAnchorPointComboBox->addItem( tr( "Bottom Left" ), static_cast< int >( QgsCallout::LabelBottomLeft ) );
386 mLabelAnchorPointComboBox->addItem( tr( "Bottom Center" ), static_cast< int >( QgsCallout::LabelBottomMiddle ) );
387 mLabelAnchorPointComboBox->addItem( tr( "Bottom Right" ), static_cast< int >( QgsCallout::LabelBottomRight ) );
388 connect( mLabelAnchorPointComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, &QgsCurvedLineCalloutWidget::mLabelAnchorPointComboBox_currentIndexChanged );
389
390 connect( mCalloutLineStyleButton, &QgsSymbolButton::changed, this, &QgsCurvedLineCalloutWidget::lineSymbolChanged );
391
392 connect( mCurvatureSlider, &QSlider::valueChanged, this, [ = ]( int value ) { mCurvatureSpinBox->setValue( value / 10.0 ); } );
393 connect( mCurvatureSpinBox, static_cast < void ( QgsDoubleSpinBox::* )( double ) > ( &QgsDoubleSpinBox::valueChanged ), this, [ = ]( double value ) { whileBlocking( mCurvatureSlider )->setValue( value * 10 ); } );
394 connect( mCurvatureSpinBox, static_cast < void ( QgsDoubleSpinBox::* )( double ) > ( &QgsDoubleSpinBox::valueChanged ), this, [ = ]( double value )
395 {
396 mCallout->setCurvature( value / 100.0 );
397 emit changed();
398 } );
399
400 connect( mCalloutBlendComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, &QgsCurvedLineCalloutWidget::mCalloutBlendComboBox_currentIndexChanged );
401}
402
403void QgsCurvedLineCalloutWidget::setCallout( QgsCallout *callout )
404{
405 if ( !callout )
406 return;
407
408 mCallout.reset( dynamic_cast<QgsCurvedLineCallout *>( callout->clone() ) );
409 if ( !mCallout )
410 return;
411
412 mMinCalloutWidthUnitWidget->blockSignals( true );
413 mMinCalloutWidthUnitWidget->setUnit( mCallout->minimumLengthUnit() );
414 mMinCalloutWidthUnitWidget->setMapUnitScale( mCallout->minimumLengthMapUnitScale() );
415 mMinCalloutWidthUnitWidget->blockSignals( false );
416
417 whileBlocking( mMinCalloutLengthSpin )->setValue( mCallout->minimumLength() );
418
419 mOffsetFromAnchorUnitWidget->blockSignals( true );
420 mOffsetFromAnchorUnitWidget->setUnit( mCallout->offsetFromAnchorUnit() );
421 mOffsetFromAnchorUnitWidget->setMapUnitScale( mCallout->offsetFromAnchorMapUnitScale() );
422 mOffsetFromAnchorUnitWidget->blockSignals( false );
423 mOffsetFromLabelUnitWidget->blockSignals( true );
424 mOffsetFromLabelUnitWidget->setUnit( mCallout->offsetFromLabelUnit() );
425 mOffsetFromLabelUnitWidget->setMapUnitScale( mCallout->offsetFromLabelMapUnitScale() );
426 mOffsetFromLabelUnitWidget->blockSignals( false );
427 whileBlocking( mOffsetFromAnchorSpin )->setValue( mCallout->offsetFromAnchor() );
428 whileBlocking( mOffsetFromLabelSpin )->setValue( mCallout->offsetFromLabel() );
429
430 whileBlocking( mCalloutLineStyleButton )->setSymbol( mCallout->lineSymbol()->clone() );
431
432 whileBlocking( mDrawToAllPartsCheck )->setChecked( mCallout->drawCalloutToAllParts() );
433
434 whileBlocking( mOrientationComboBox )->setCurrentIndex( mOrientationComboBox->findData( static_cast< int >( mCallout->orientation() ) ) );
435
436 whileBlocking( mAnchorPointComboBox )->setCurrentIndex( mAnchorPointComboBox->findData( static_cast< int >( callout->anchorPoint() ) ) );
437 whileBlocking( mLabelAnchorPointComboBox )->setCurrentIndex( mLabelAnchorPointComboBox->findData( static_cast< int >( callout->labelAnchorPoint() ) ) );
438
439 whileBlocking( mCalloutBlendComboBox )->setBlendMode( mCallout->blendMode() );
440
441 whileBlocking( mCurvatureSpinBox )->setValue( mCallout->curvature() * 100.0 );
442 whileBlocking( mCurvatureSlider )->setValue( mCallout->curvature() * 1000.0 );
443
444 registerDataDefinedButton( mMinCalloutLengthDDBtn, QgsCallout::Property::MinimumCalloutLength );
445 registerDataDefinedButton( mOffsetFromAnchorDDBtn, QgsCallout::Property::OffsetFromAnchor );
446 registerDataDefinedButton( mOffsetFromLabelDDBtn, QgsCallout::Property::OffsetFromLabel );
447 registerDataDefinedButton( mDrawToAllPartsDDBtn, QgsCallout::Property::DrawCalloutToAllParts );
448 registerDataDefinedButton( mAnchorPointDDBtn, QgsCallout::Property::AnchorPointPosition );
449 registerDataDefinedButton( mLabelAnchorPointDDBtn, QgsCallout::Property::LabelAnchorPointPosition );
450 registerDataDefinedButton( mCalloutBlendModeDDBtn, QgsCallout::Property::BlendMode );
451 registerDataDefinedButton( mCalloutCurvatureDDBtn, QgsCallout::Property::Curvature );
452 registerDataDefinedButton( mCalloutOrientationDDBtn, QgsCallout::Property::Orientation );
453
454 registerDataDefinedButton( mOriginXDDBtn, QgsCallout::Property::OriginX );
455 registerDataDefinedButton( mOriginYDDBtn, QgsCallout::Property::OriginY );
456 registerDataDefinedButton( mDestXDDBtn, QgsCallout::Property::DestinationX );
457 registerDataDefinedButton( mDestYDDBtn, QgsCallout::Property::DestinationY );
458}
459
460void QgsCurvedLineCalloutWidget::setGeometryType( Qgis::GeometryType type )
461{
462 const bool isPolygon = type == Qgis::GeometryType::Polygon;
463 mAnchorPointLbl->setEnabled( isPolygon );
464 mAnchorPointLbl->setVisible( isPolygon );
465 mAnchorPointComboBox->setEnabled( isPolygon );
466 mAnchorPointComboBox->setVisible( isPolygon );
467 mAnchorPointDDBtn->setEnabled( isPolygon );
468 mAnchorPointDDBtn->setVisible( isPolygon );
469}
470
471QgsCallout *QgsCurvedLineCalloutWidget::callout()
472{
473 return mCallout.get();
474}
475
476void QgsCurvedLineCalloutWidget::minimumLengthChanged()
477{
478 mCallout->setMinimumLength( mMinCalloutLengthSpin->value() );
479 emit changed();
480}
481
482void QgsCurvedLineCalloutWidget::minimumLengthUnitWidgetChanged()
483{
484 mCallout->setMinimumLengthUnit( mMinCalloutWidthUnitWidget->unit() );
485 mCallout->setMinimumLengthMapUnitScale( mMinCalloutWidthUnitWidget->getMapUnitScale() );
486 emit changed();
487}
488
489void QgsCurvedLineCalloutWidget::offsetFromAnchorUnitWidgetChanged()
490{
491 mCallout->setOffsetFromAnchorUnit( mOffsetFromAnchorUnitWidget->unit() );
492 mCallout->setOffsetFromAnchorMapUnitScale( mOffsetFromAnchorUnitWidget->getMapUnitScale() );
493 emit changed();
494}
495
496void QgsCurvedLineCalloutWidget::offsetFromAnchorChanged()
497{
498 mCallout->setOffsetFromAnchor( mOffsetFromAnchorSpin->value() );
499 emit changed();
500}
501
502void QgsCurvedLineCalloutWidget::offsetFromLabelUnitWidgetChanged()
503{
504 mCallout->setOffsetFromLabelUnit( mOffsetFromLabelUnitWidget->unit() );
505 mCallout->setOffsetFromLabelMapUnitScale( mOffsetFromLabelUnitWidget->getMapUnitScale() );
506 emit changed();
507}
508
509void QgsCurvedLineCalloutWidget::offsetFromLabelChanged()
510{
511 mCallout->setOffsetFromLabel( mOffsetFromLabelSpin->value() );
512 emit changed();
513}
514
515void QgsCurvedLineCalloutWidget::lineSymbolChanged()
516{
517 mCallout->setLineSymbol( mCalloutLineStyleButton->clonedSymbol< QgsLineSymbol >() );
518 emit changed();
519}
520
521void QgsCurvedLineCalloutWidget::mAnchorPointComboBox_currentIndexChanged( int index )
522{
523 mCallout->setAnchorPoint( static_cast<QgsCallout::AnchorPoint>( mAnchorPointComboBox->itemData( index ).toInt() ) );
524 emit changed();
525}
526
527void QgsCurvedLineCalloutWidget::mLabelAnchorPointComboBox_currentIndexChanged( int index )
528{
529 mCallout->setLabelAnchorPoint( static_cast<QgsCallout::LabelAnchorPoint>( mLabelAnchorPointComboBox->itemData( index ).toInt() ) );
530 emit changed();
531}
532
533void QgsCurvedLineCalloutWidget::mCalloutBlendComboBox_currentIndexChanged( int )
534{
535 mCallout->setBlendMode( mCalloutBlendComboBox->blendMode() );
536 emit changed();
537}
538
539void QgsCurvedLineCalloutWidget::drawToAllPartsToggled( bool active )
540{
541 mCallout->setDrawCalloutToAllParts( active );
542 emit changed();
543}
544
545
546//
547// QgsBalloonCalloutWidget
548//
549
550QgsBalloonCalloutWidget::QgsBalloonCalloutWidget( QgsVectorLayer *vl, QWidget *parent )
551 : QgsCalloutWidget( parent, vl )
552{
553 setupUi( this );
554
555 // Callout options - to move to custom widgets when multiple callout styles exist
556 mCalloutFillStyleButton->setSymbolType( Qgis::SymbolType::Fill );
557 mCalloutFillStyleButton->setDialogTitle( tr( "Balloon Symbol" ) );
558 mCalloutFillStyleButton->registerExpressionContextGenerator( this );
559
560 mCalloutFillStyleButton->setLayer( vl );
561 mOffsetFromAnchorUnitWidget->setUnits( QgsUnitTypes::RenderUnitList() << Qgis::RenderUnit::Millimeters << Qgis::RenderUnit::MetersInMapUnits << Qgis::RenderUnit::MapUnits << Qgis::RenderUnit::Pixels
562 << Qgis::RenderUnit::Points << Qgis::RenderUnit::Inches );
563 mMarginUnitWidget->setUnits( QgsUnitTypes::RenderUnitList() << Qgis::RenderUnit::Millimeters << Qgis::RenderUnit::MetersInMapUnits << Qgis::RenderUnit::MapUnits << Qgis::RenderUnit::Pixels
564 << Qgis::RenderUnit::Points << Qgis::RenderUnit::Inches );
565 mWedgeWidthUnitWidget->setUnits( QgsUnitTypes::RenderUnitList() << Qgis::RenderUnit::Millimeters << Qgis::RenderUnit::MetersInMapUnits << Qgis::RenderUnit::MapUnits << Qgis::RenderUnit::Pixels
566 << Qgis::RenderUnit::Points << Qgis::RenderUnit::Inches );
567 mCornerRadiusUnitWidget->setUnits( QgsUnitTypes::RenderUnitList() << Qgis::RenderUnit::Millimeters << Qgis::RenderUnit::MetersInMapUnits << Qgis::RenderUnit::MapUnits << Qgis::RenderUnit::Pixels
568 << Qgis::RenderUnit::Points << Qgis::RenderUnit::Inches );
569
570 mSpinBottomMargin->setClearValue( 0 );
571 mSpinTopMargin->setClearValue( 0 );
572 mSpinRightMargin->setClearValue( 0 );
573 mSpinLeftMargin->setClearValue( 0 );
574 mWedgeWidthSpin->setClearValue( 2.64 );
575 mCornerRadiusSpin->setClearValue( 0.0 );
576
577 connect( mOffsetFromAnchorUnitWidget, &QgsUnitSelectionWidget::changed, this, &QgsBalloonCalloutWidget::offsetFromAnchorUnitWidgetChanged );
578 connect( mOffsetFromAnchorSpin, static_cast < void ( QDoubleSpinBox::* )( double ) > ( &QDoubleSpinBox::valueChanged ), this, &QgsBalloonCalloutWidget::offsetFromAnchorChanged );
579
580 // Anchor point options
581 mAnchorPointComboBox->addItem( tr( "Pole of Inaccessibility" ), static_cast< int >( QgsCallout::PoleOfInaccessibility ) );
582 mAnchorPointComboBox->addItem( tr( "Point on Exterior" ), static_cast< int >( QgsCallout::PointOnExterior ) );
583 mAnchorPointComboBox->addItem( tr( "Point on Surface" ), static_cast< int >( QgsCallout::PointOnSurface ) );
584 mAnchorPointComboBox->addItem( tr( "Centroid" ), static_cast< int >( QgsCallout::Centroid ) );
585 connect( mAnchorPointComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, &QgsBalloonCalloutWidget::mAnchorPointComboBox_currentIndexChanged );
586
587 connect( mCalloutFillStyleButton, &QgsSymbolButton::changed, this, &QgsBalloonCalloutWidget::fillSymbolChanged );
588
589 connect( mSpinBottomMargin, qOverload< double >( &QDoubleSpinBox::valueChanged ), this, [ = ]( double value )
590 {
591 QgsMargins margins = mCallout->margins();
592 margins.setBottom( value );
593 mCallout->setMargins( margins );
594 emit changed();
595 } );
596 connect( mSpinTopMargin, qOverload< double >( &QDoubleSpinBox::valueChanged ), this, [ = ]( double value )
597 {
598 QgsMargins margins = mCallout->margins();
599 margins.setTop( value );
600 mCallout->setMargins( margins );
601 emit changed();
602 } );
603 connect( mSpinLeftMargin, qOverload< double >( &QDoubleSpinBox::valueChanged ), this, [ = ]( double value )
604 {
605 QgsMargins margins = mCallout->margins();
606 margins.setLeft( value );
607 mCallout->setMargins( margins );
608 emit changed();
609 } );
610 connect( mSpinRightMargin, qOverload< double >( &QDoubleSpinBox::valueChanged ), this, [ = ]( double value )
611 {
612 QgsMargins margins = mCallout->margins();
613 margins.setRight( value );
614 mCallout->setMargins( margins );
615 emit changed();
616 } );
617 connect( mMarginUnitWidget, &QgsUnitSelectionWidget::changed, this, [ = ]
618 {
619 mCallout->setMarginsUnit( mMarginUnitWidget->unit() );
620 emit changed();
621 } );
622
623 connect( mWedgeWidthUnitWidget, &QgsUnitSelectionWidget::changed, this, [ = ]
624 {
625 mCallout->setWedgeWidthUnit( mWedgeWidthUnitWidget->unit() );
626 mCallout->setWedgeWidthMapUnitScale( mWedgeWidthUnitWidget->getMapUnitScale() );
627 emit changed();
628 } );
629 connect( mWedgeWidthSpin, qOverload< double >( &QDoubleSpinBox::valueChanged ), this, [ = ]( double value )
630 {
631 mCallout->setWedgeWidth( value );
632 emit changed();
633 } );
634
635 connect( mCornerRadiusUnitWidget, &QgsUnitSelectionWidget::changed, this, [ = ]
636 {
637 mCallout->setCornerRadiusUnit( mCornerRadiusUnitWidget->unit() );
638 mCallout->setCornerRadiusMapUnitScale( mCornerRadiusUnitWidget->getMapUnitScale() );
639 emit changed();
640 } );
641 connect( mCornerRadiusSpin, qOverload< double >( &QDoubleSpinBox::valueChanged ), this, [ = ]( double value )
642 {
643 mCallout->setCornerRadius( value );
644 emit changed();
645 } );
646
647 connect( mCalloutBlendComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, &QgsBalloonCalloutWidget::mCalloutBlendComboBox_currentIndexChanged );
648}
649
650void QgsBalloonCalloutWidget::setCallout( QgsCallout *callout )
651{
652 if ( !callout )
653 return;
654
655 mCallout.reset( dynamic_cast<QgsBalloonCallout *>( callout->clone() ) );
656 if ( !mCallout )
657 return;
658
659 mOffsetFromAnchorUnitWidget->blockSignals( true );
660 mOffsetFromAnchorUnitWidget->setUnit( mCallout->offsetFromAnchorUnit() );
661 mOffsetFromAnchorUnitWidget->setMapUnitScale( mCallout->offsetFromAnchorMapUnitScale() );
662 mOffsetFromAnchorUnitWidget->blockSignals( false );
663 whileBlocking( mOffsetFromAnchorSpin )->setValue( mCallout->offsetFromAnchor() );
664
665 whileBlocking( mSpinBottomMargin )->setValue( mCallout->margins().bottom() );
666 whileBlocking( mSpinTopMargin )->setValue( mCallout->margins().top() );
667 whileBlocking( mSpinLeftMargin )->setValue( mCallout->margins().left() );
668 whileBlocking( mSpinRightMargin )->setValue( mCallout->margins().right() );
669 whileBlocking( mMarginUnitWidget )->setUnit( mCallout->marginsUnit() );
670
671 mWedgeWidthUnitWidget->blockSignals( true );
672 mWedgeWidthUnitWidget->setUnit( mCallout->wedgeWidthUnit() );
673 mWedgeWidthUnitWidget->setMapUnitScale( mCallout->wedgeWidthMapUnitScale() );
674 mWedgeWidthUnitWidget->blockSignals( false );
675 whileBlocking( mWedgeWidthSpin )->setValue( mCallout->wedgeWidth() );
676
677 mCornerRadiusUnitWidget->blockSignals( true );
678 mCornerRadiusUnitWidget->setUnit( mCallout->cornerRadiusUnit() );
679 mCornerRadiusUnitWidget->setMapUnitScale( mCallout->cornerRadiusMapUnitScale() );
680 mCornerRadiusUnitWidget->blockSignals( false );
681 whileBlocking( mCornerRadiusSpin )->setValue( mCallout->cornerRadius() );
682
683 whileBlocking( mCalloutFillStyleButton )->setSymbol( mCallout->fillSymbol()->clone() );
684
685 whileBlocking( mAnchorPointComboBox )->setCurrentIndex( mAnchorPointComboBox->findData( static_cast< int >( callout->anchorPoint() ) ) );
686
687 whileBlocking( mCalloutBlendComboBox )->setBlendMode( mCallout->blendMode() );
688
689 registerDataDefinedButton( mOffsetFromAnchorDDBtn, QgsCallout::Property::OffsetFromAnchor );
690 registerDataDefinedButton( mAnchorPointDDBtn, QgsCallout::Property::AnchorPointPosition );
691 registerDataDefinedButton( mCalloutBlendModeDDBtn, QgsCallout::Property::BlendMode );
692
693 registerDataDefinedButton( mDestXDDBtn, QgsCallout::Property::DestinationX );
694 registerDataDefinedButton( mDestYDDBtn, QgsCallout::Property::DestinationY );
695 registerDataDefinedButton( mMarginsDDBtn, QgsCallout::Property::Margins );
696 registerDataDefinedButton( mWedgeWidthDDBtn, QgsCallout::Property::WedgeWidth );
697 registerDataDefinedButton( mCornerRadiusDDBtn, QgsCallout::Property::CornerRadius );
698}
699
700void QgsBalloonCalloutWidget::setGeometryType( Qgis::GeometryType type )
701{
702 const bool isPolygon = type == Qgis::GeometryType::Polygon;
703 mAnchorPointLbl->setEnabled( isPolygon );
704 mAnchorPointLbl->setVisible( isPolygon );
705 mAnchorPointComboBox->setEnabled( isPolygon );
706 mAnchorPointComboBox->setVisible( isPolygon );
707 mAnchorPointDDBtn->setEnabled( isPolygon );
708 mAnchorPointDDBtn->setVisible( isPolygon );
709}
710
711QgsCallout *QgsBalloonCalloutWidget::callout()
712{
713 return mCallout.get();
714}
715
716void QgsBalloonCalloutWidget::offsetFromAnchorUnitWidgetChanged()
717{
718 mCallout->setOffsetFromAnchorUnit( mOffsetFromAnchorUnitWidget->unit() );
719 mCallout->setOffsetFromAnchorMapUnitScale( mOffsetFromAnchorUnitWidget->getMapUnitScale() );
720 emit changed();
721}
722
723void QgsBalloonCalloutWidget::offsetFromAnchorChanged()
724{
725 mCallout->setOffsetFromAnchor( mOffsetFromAnchorSpin->value() );
726 emit changed();
727}
728
729void QgsBalloonCalloutWidget::fillSymbolChanged()
730{
731 mCallout->setFillSymbol( mCalloutFillStyleButton->clonedSymbol< QgsFillSymbol >() );
732 emit changed();
733}
734
735void QgsBalloonCalloutWidget::mAnchorPointComboBox_currentIndexChanged( int index )
736{
737 mCallout->setAnchorPoint( static_cast<QgsCallout::AnchorPoint>( mAnchorPointComboBox->itemData( index ).toInt() ) );
738 emit changed();
739}
740
741void QgsBalloonCalloutWidget::mCalloutBlendComboBox_currentIndexChanged( int )
742{
743 mCallout->setBlendMode( mCalloutBlendComboBox->blendMode() );
744 emit changed();
745}
746
748
Qgis::GeometryType
GeometryType
The geometry types are used to group Qgis::WkbType in a coarse way.
Definition qgis.h:274
Qgis::GeometryType::Polygon
@ Polygon
Polygons.
Qgis::RenderUnit::Millimeters
@ Millimeters
Millimeters.
Qgis::RenderUnit::Points
@ Points
Points (e.g., for font sizes)
Qgis::RenderUnit::MapUnits
@ MapUnits
Map units.
Qgis::RenderUnit::MetersInMapUnits
@ MetersInMapUnits
Meters value as Map units.
Qgis::SymbolType::Line
@ Line
Line symbol.
Qgis::SymbolType::Fill
@ Fill
Fill symbol.
QgsAuxiliaryLayer::nameFromProperty
static QString nameFromProperty(const QgsPropertyDefinition &def, bool joined=false)
Returns the name of the auxiliary field for a property definition.
QgsAuxiliaryLayer::addAuxiliaryField
bool addAuxiliaryField(const QgsPropertyDefinition &definition)
Adds an auxiliary field for the given property.
QgsAuxiliaryLayer::exists
bool exists(const QgsPropertyDefinition &definition) const
Returns true if the property is stored in the layer already, false otherwise.
QgsBalloonCallout
A cartoon talking bubble callout style.
Definition qgscallout.h:893
QgsCalloutWidget
Base class for widgets which allow control over the properties of callouts.
Definition qgscalloutwidget.h:35
QgsCalloutWidget::context
QgsSymbolWidgetContext context() const
Returns the context in which the symbol widget is shown, e.g., the associated map canvas and expressi...
Definition qgscalloutwidget.cpp:68
QgsCalloutWidget::createExpressionContext
QgsExpressionContext createExpressionContext() const override
This method needs to be reimplemented in all classes which implement this interface and return an exp...
Definition qgscalloutwidget.cpp:27
QgsCalloutWidget::setContext
virtual void setContext(const QgsSymbolWidgetContext &context)
Sets the context in which the symbol widget is shown, e.g., the associated map canvas and expression ...
Definition qgscalloutwidget.cpp:52
QgsCalloutWidget::vectorLayer
const QgsVectorLayer * vectorLayer() const
Returns the vector layer associated with the widget.
Definition qgscalloutwidget.h:79
QgsCalloutWidget::callout
virtual QgsCallout * callout()=0
Returns the callout defined by the current settings in the widget.
QgsCalloutWidget::changed
void changed()
Should be emitted whenever configuration changes happened on this symbol layer configuration.
QgsCalloutWidget::registerDataDefinedButton
void registerDataDefinedButton(QgsPropertyOverrideButton *button, QgsCallout::Property key)
Registers a data defined override button.
Definition qgscalloutwidget.cpp:73
QgsCallout
Abstract base class for callout renderers.
Definition qgscallout.h:53
QgsCallout::clone
virtual QgsCallout * clone() const =0
Duplicates a callout by creating a deep copy of the callout.
QgsCallout::dataDefinedProperties
QgsPropertyCollection & dataDefinedProperties()
Returns a reference to the callout's property collection, used for data defined overrides.
Definition qgscallout.h:333
QgsCallout::propertyDefinitions
static QgsPropertiesDefinition propertyDefinitions()
Returns the definitions for data defined properties available for use in callouts.
Definition qgscallout.cpp:193
QgsCallout::anchorPoint
AnchorPoint anchorPoint() const
Returns the feature's anchor point position.
Definition qgscallout.h:363
QgsCallout::labelAnchorPoint
LabelAnchorPoint labelAnchorPoint() const
Returns the label's anchor point position.
Definition qgscallout.h:396
QgsCallout::AnchorPoint
AnchorPoint
Feature's anchor point position.
Definition qgscallout.h:114
QgsCallout::PointOnExterior
@ PointOnExterior
A point on the surface's outline closest to the label is used as anchor for polygon geometries.
Definition qgscallout.h:116
QgsCallout::Centroid
@ Centroid
The surface's centroid is used as anchor for polygon geometries.
Definition qgscallout.h:118
QgsCallout::PointOnSurface
@ PointOnSurface
A point guaranteed to be on the surface is used as anchor for polygon geometries.
Definition qgscallout.h:117
QgsCallout::PoleOfInaccessibility
@ PoleOfInaccessibility
The surface's pole of inaccessibility used as anchor for polygon geometries.
Definition qgscallout.h:115
QgsCallout::LabelAnchorPoint
LabelAnchorPoint
Label's anchor point position.
Definition qgscallout.h:126
QgsCallout::LabelPointOnExterior
@ LabelPointOnExterior
The point on the label's boundary closest to the feature.
Definition qgscallout.h:127
QgsCallout::LabelBottomLeft
@ LabelBottomLeft
Bottom left corner of the label's boundary.
Definition qgscallout.h:134
QgsCallout::LabelBottomMiddle
@ LabelBottomMiddle
Bottom middle of the label's boundary.
Definition qgscallout.h:135
QgsCallout::LabelMiddleLeft
@ LabelMiddleLeft
Middle left of the label's boundary.
Definition qgscallout.h:132
QgsCallout::LabelBottomRight
@ LabelBottomRight
Bottom right corner of the label's boundary.
Definition qgscallout.h:136
QgsCallout::LabelMiddleRight
@ LabelMiddleRight
Middle right of the label's boundary.
Definition qgscallout.h:133
QgsCallout::LabelTopMiddle
@ LabelTopMiddle
Top middle of the label's boundary.
Definition qgscallout.h:130
QgsCallout::LabelTopLeft
@ LabelTopLeft
Top left corner of the label's boundary.
Definition qgscallout.h:129
QgsCallout::LabelCentroid
@ LabelCentroid
The labe's centroid.
Definition qgscallout.h:128
QgsCallout::LabelTopRight
@ LabelTopRight
Top right corner of the label's boundary.
Definition qgscallout.h:131
QgsCallout::Property
Property
Data definable properties.
Definition qgscallout.h:85
QgsCallout::Property::MinimumCalloutLength
@ MinimumCalloutLength
Minimum length of callouts.
QgsCallout::Property::LabelAnchorPointPosition
@ LabelAnchorPointPosition
Label's anchor point position.
QgsCallout::Property::CornerRadius
@ CornerRadius
Balloon callout corner radius (since QGIS 3.20)
QgsCallout::Property::OffsetFromAnchor
@ OffsetFromAnchor
Distance to offset lines from anchor points.
QgsCallout::Property::OffsetFromLabel
@ OffsetFromLabel
Distance to offset lines from label area.
QgsCallout::Property::DestinationX
@ DestinationX
X-coordinate of callout destination (feature anchor) (since QGIS 3.20)
QgsCallout::Property::DestinationY
@ DestinationY
Y-coordinate of callout destination (feature anchor) (since QGIS 3.20)
QgsCallout::Property::WedgeWidth
@ WedgeWidth
Balloon callout wedge width (since QGIS 3.20)
QgsCallout::Property::AnchorPointPosition
@ AnchorPointPosition
Feature's anchor point position.
QgsCallout::Property::OriginX
@ OriginX
X-coordinate of callout origin (label anchor) (since QGIS 3.20)
QgsCallout::Property::OriginY
@ OriginY
Y-coordinate of callout origin (label anchor) (since QGIS 3.20)
QgsCallout::Property::Curvature
@ Curvature
Curvature of curved line callouts (since QGIS 3.20)
QgsCallout::Property::BlendMode
@ BlendMode
Callout blend mode (since QGIS 3.20)
QgsCallout::Property::Orientation
@ Orientation
Orientation of curved line callouts (since QGIS 3.20)
QgsCallout::Property::Margins
@ Margins
Margin from text (since QGIS 3.20)
QgsCallout::Property::DrawCalloutToAllParts
@ DrawCalloutToAllParts
Whether callout lines should be drawn to all feature parts.
QgsCurvedLineCallout
Draws curved lines as callouts.
Definition qgscallout.h:793
QgsCurvedLineCallout::Orientation
Orientation
Curve orientation.
Definition qgscallout.h:800
QgsCurvedLineCallout::Clockwise
@ Clockwise
Curve lines in a clockwise direction.
Definition qgscallout.h:802
QgsCurvedLineCallout::CounterClockwise
@ CounterClockwise
Curve lines in a counter-clockwise direction.
Definition qgscallout.h:803
QgsCurvedLineCallout::Automatic
@ Automatic
Automatically choose most cartographically pleasing orientation based on label and callout arrangemen...
Definition qgscallout.h:801
QgsDoubleSpinBox
The QgsSpinBox is a spin box with a clear button that will set the value to the defined clear value.
Definition qgsdoublespinbox.h:43
QgsExpressionContextScope
Single scope for storing variables and functions for use within a QgsExpressionContext.
Definition qgsexpressioncontext.h:114
QgsExpressionContextScope::addVariable
void addVariable(const QgsExpressionContextScope::StaticVariable &variable)
Adds a variable into the context scope.
Definition qgsexpressioncontext.cpp:102
QgsExpressionContextUtils::updateSymbolScope
static QgsExpressionContextScope * updateSymbolScope(const QgsSymbol *symbol, QgsExpressionContextScope *symbolScope=nullptr)
Updates a symbol scope related to a QgsSymbol to an expression context.
Definition qgsexpressioncontextutils.cpp:577
QgsExpressionContext
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
Definition qgsexpressioncontext.h:471
QgsExpressionContext::setOriginalValueVariable
void setOriginalValueVariable(const QVariant &value)
Sets the original value variable value for the context.
Definition qgsexpressioncontext.cpp:704
QgsExpressionContext::EXPR_SYMBOL_COLOR
static const QString EXPR_SYMBOL_COLOR
Inbuilt variable name for symbol color variable.
Definition qgsexpressioncontext.h:888
QgsExpressionContext::appendScope
void appendScope(QgsExpressionContextScope *scope)
Appends a scope to the end of the context.
Definition qgsexpressioncontext.cpp:598
QgsExpressionContext::setHighlightedVariables
void setHighlightedVariables(const QStringList &variableNames)
Sets the list of variable names within the context intended to be highlighted to the user.
Definition qgsexpressioncontext.cpp:408
QgsExpressionContext::EXPR_ORIGINAL_VALUE
static const QString EXPR_ORIGINAL_VALUE
Inbuilt variable name for value original value variable.
Definition qgsexpressioncontext.h:886
QgsFillSymbol
A fill symbol type, for rendering Polygon and MultiPolygon geometries.
Definition qgsfillsymbol.h:30
QgsLineSymbol
A line symbol type, for rendering LineString and MultiLineString geometries.
Definition qgslinesymbol.h:30
QgsMargins
The QgsMargins class defines the four margins of a rectangle.
Definition qgsmargins.h:37
QgsMargins::setBottom
void setBottom(double bottom)
Sets the bottom margin to bottom.
Definition qgsmargins.h:113
QgsMargins::setLeft
void setLeft(double left)
Sets the left margin to left.
Definition qgsmargins.h:95
QgsMargins::setRight
void setRight(double right)
Sets the right margin to right.
Definition qgsmargins.h:107
QgsMargins::setTop
void setTop(double top)
Sets the top margin to top.
Definition qgsmargins.h:101
QgsNewAuxiliaryLayerDialog
A dialog to create a new auxiliary layer.
Definition qgsnewauxiliarylayerdialog.h:34
QgsPropertyCollection::setProperty
void setProperty(int key, const QgsProperty &property)
Adds a property to the collection and takes ownership of it.
Definition qgspropertycollection.cpp:187
QgsPropertyDefinition
Definition for a property.
Definition qgsproperty.h:45
QgsPropertyOverrideButton
A button for controlling property overrides which may apply to a widget.
Definition qgspropertyoverridebutton.h:49
QgsPropertyOverrideButton::toProperty
QgsProperty toProperty() const
Returns a QgsProperty object encapsulating the current state of the widget.
Definition qgspropertyoverridebutton.cpp:192
QgsPropertyOverrideButton::updateFieldLists
void updateFieldLists()
Updates list of fields.
Definition qgspropertyoverridebutton.cpp:152
QgsPropertyOverrideButton::changed
void changed()
Emitted when property definition changes.
QgsPropertyOverrideButton::init
void init(int propertyKey, const QgsProperty &property, const QgsPropertiesDefinition &definitions, const QgsVectorLayer *layer=nullptr, bool auxiliaryStorageEnabled=false)
Initialize a newly constructed property button (useful if button was included in a UI layout).
Definition qgspropertyoverridebutton.cpp:96
QgsPropertyOverrideButton::registerExpressionContextGenerator
void registerExpressionContextGenerator(QgsExpressionContextGenerator *generator)
Register an expression context generator class that will be used to retrieve an expression context fo...
Definition qgspropertyoverridebutton.cpp:953
QgsPropertyOverrideButton::propertyKey
int propertyKey() const
Returns the property key linked to the button.
Definition qgspropertyoverridebutton.h:121
QgsPropertyOverrideButton::setToProperty
void setToProperty(const QgsProperty &property)
Sets the widget to reflect the current state of a QgsProperty.
Definition qgspropertyoverridebutton.cpp:277
QgsPropertyOverrideButton::createAuxiliaryField
void createAuxiliaryField()
Emitted when creating a new auxiliary field.
QgsProperty
A store for object properties.
Definition qgsproperty.h:228
QgsProperty::setField
void setField(const QString &field)
Sets the field name the property references.
Definition qgsproperty.cpp:346
QgsSimpleLineCallout
A simple direct line callout style.
Definition qgscallout.h:513
QgsSymbolButton
A button for creating and modifying QgsSymbol settings.
Definition qgssymbolbutton.h:45
QgsSymbolButton::changed
void changed()
Emitted when the symbol's settings are changed.
QgsSymbolWidgetContext
Contains settings which reflect the context in which a symbol (or renderer) widget is shown,...
Definition qgssymbolwidgetcontext.h:35
QgsSymbolWidgetContext::additionalExpressionContextScopes
QList< QgsExpressionContextScope > additionalExpressionContextScopes() const
Returns the list of additional expression context scopes to show as available within the layer.
Definition qgssymbolwidgetcontext.cpp:89
QgsSymbolWidgetContext::globalProjectAtlasMapLayerScopes
QList< QgsExpressionContextScope * > globalProjectAtlasMapLayerScopes(const QgsMapLayer *layer) const
Returns list of scopes: global, project, atlas, map, layer.
Definition qgssymbolwidgetcontext.cpp:94
QgsSymbolWidgetContext::expressionContext
QgsExpressionContext * expressionContext() const
Returns the expression context used for the widget, if set.
Definition qgssymbolwidgetcontext.cpp:79
QgsSymbolWidgetContext::mapCanvas
QgsMapCanvas * mapCanvas() const
Returns the map canvas associated with the widget.
Definition qgssymbolwidgetcontext.cpp:56
QgsSymbolWidgetContext::messageBar
QgsMessageBar * messageBar() const
Returns the message bar associated with the widget.
Definition qgssymbolwidgetcontext.cpp:66
QgsUnitSelectionWidget
A widget displaying a combobox allowing the user to choose between various display units,...
Definition qgsunitselectionwidget.h:164
QgsUnitTypes::RenderUnitList
QList< Qgis::RenderUnit > RenderUnitList
List of render units.
Definition qgsunittypes.h:81
QgsVectorLayer
Represents a vector layer which manages a vector based data sets.
Definition qgsvectorlayer.h:401
QgsVectorLayer::auxiliaryLayer
QgsAuxiliaryLayer * auxiliaryLayer()
Returns the current auxiliary layer.
Definition qgsvectorlayer.cpp:6072
whileBlocking
QgsSignalBlocker< Object > whileBlocking(Object *object)
Temporarily blocks signals from a QObject while calling a single method from the object.
Definition qgis.h:5349
QgsExpressionContextScope::StaticVariable
Single variable definition for use within a QgsExpressionContextScope.
Definition qgsexpressioncontext.h:121
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