QGIS API Documentation  3.20.0-Odense (decaadbb31)
qgslayoutpropertieswidget.cpp
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1 /***************************************************************************
2  qgslayoutpropertieswidget.cpp
3  -----------------------------
4  begin : July 2017
5  copyright : (C) 2017 by Nyall Dawson
6  email : nyall dot dawson at gmail dot com
7  ***************************************************************************/
8 /***************************************************************************
9  * *
10  * This program is free software; you can redistribute it and/or modify *
11  * it under the terms of the GNU General Public License as published by *
12  * the Free Software Foundation; either version 2 of the License, or *
13  * (at your option) any later version. *
14  * *
15  ***************************************************************************/
16 
18 #include "qgslayout.h"
19 #include "qgslayoutsnapper.h"
21 #include "qgslayoutundostack.h"
22 #include "qgslayoutitemmap.h"
24 #include "qgsprintlayout.h"
25 #include "qgslayoutatlas.h"
26 
28  : QgsPanelWidget( parent )
29  , mLayout( layout )
30 {
31  Q_ASSERT( mLayout );
32 
33  setupUi( this );
34  setPanelTitle( tr( "Layout Properties" ) );
35  blockSignals( true );
36 
37  mVariableEditor->setMinimumHeight( mVariableEditor->fontMetrics().height() * 15 );
38 
39  updateSnappingElements();
40 
41  mGridSpacingUnitsCombo->linkToWidget( mGridResolutionSpinBox );
42  mGridOffsetUnitsComboBox->linkToWidget( mOffsetXSpinBox );
43  mGridOffsetUnitsComboBox->linkToWidget( mOffsetYSpinBox );
44 
45  blockSignals( false );
46 
47  connect( mSnapToleranceSpinBox, static_cast < void ( QSpinBox::* )( int ) > ( &QSpinBox::valueChanged ), this, &QgsLayoutPropertiesWidget::snapToleranceChanged );
48 
49  connect( mGridOffsetUnitsComboBox, &QgsLayoutUnitsComboBox::changed, this, &QgsLayoutPropertiesWidget::gridOffsetUnitsChanged );
50  connect( mGridSpacingUnitsCombo, &QgsLayoutUnitsComboBox::changed, this, &QgsLayoutPropertiesWidget::gridResolutionUnitsChanged );
51  connect( mGridResolutionSpinBox, static_cast < void ( QgsDoubleSpinBox::* )( double ) > ( &QgsDoubleSpinBox::valueChanged ), this, &QgsLayoutPropertiesWidget::gridResolutionChanged );
52  connect( mOffsetXSpinBox, static_cast < void ( QgsDoubleSpinBox::* )( double ) > ( &QgsDoubleSpinBox::valueChanged ), this, &QgsLayoutPropertiesWidget::gridOffsetXChanged );
53  connect( mOffsetYSpinBox, static_cast < void ( QgsDoubleSpinBox::* )( double ) > ( &QgsDoubleSpinBox::valueChanged ), this, &QgsLayoutPropertiesWidget::gridOffsetYChanged );
54 
55  double leftMargin = mLayout->customProperty( QStringLiteral( "resizeToContentsLeftMargin" ) ).toDouble();
56  double topMargin = mLayout->customProperty( QStringLiteral( "resizeToContentsTopMargin" ) ).toDouble();
57  double bottomMargin = mLayout->customProperty( QStringLiteral( "resizeToContentsBottomMargin" ) ).toDouble();
58  double rightMargin = mLayout->customProperty( QStringLiteral( "resizeToContentsRightMargin" ) ).toDouble();
59  QgsUnitTypes::LayoutUnit marginUnit = static_cast< QgsUnitTypes::LayoutUnit >(
60  mLayout->customProperty( QStringLiteral( "imageCropMarginUnit" ), QgsUnitTypes::LayoutMillimeters ).toInt() );
61 
62  bool exportWorldFile = mLayout->customProperty( QStringLiteral( "exportWorldFile" ), false ).toBool();
63  mGenerateWorldFileCheckBox->setChecked( exportWorldFile );
64  connect( mGenerateWorldFileCheckBox, &QCheckBox::toggled, this, &QgsLayoutPropertiesWidget::worldFileToggled );
65 
66  connect( mRasterizeCheckBox, &QCheckBox::toggled, this, &QgsLayoutPropertiesWidget::rasterizeToggled );
67  connect( mForceVectorCheckBox, &QCheckBox::toggled, this, &QgsLayoutPropertiesWidget::forceVectorToggled );
68 
69  mTopMarginSpinBox->setValue( topMargin );
70  mMarginUnitsComboBox->linkToWidget( mTopMarginSpinBox );
71  mRightMarginSpinBox->setValue( rightMargin );
72  mMarginUnitsComboBox->linkToWidget( mRightMarginSpinBox );
73  mBottomMarginSpinBox->setValue( bottomMargin );
74  mMarginUnitsComboBox->linkToWidget( mBottomMarginSpinBox );
75  mLeftMarginSpinBox->setValue( leftMargin );
76  mMarginUnitsComboBox->linkToWidget( mLeftMarginSpinBox );
77  mMarginUnitsComboBox->setUnit( marginUnit );
78  mMarginUnitsComboBox->setConverter( &mLayout->renderContext().measurementConverter() );
79 
80  connect( mTopMarginSpinBox, static_cast < void ( QDoubleSpinBox::* )( double ) > ( &QDoubleSpinBox::valueChanged ), this, &QgsLayoutPropertiesWidget::resizeMarginsChanged );
81  connect( mRightMarginSpinBox, static_cast < void ( QDoubleSpinBox::* )( double ) > ( &QDoubleSpinBox::valueChanged ), this, &QgsLayoutPropertiesWidget::resizeMarginsChanged );
82  connect( mBottomMarginSpinBox, static_cast < void ( QDoubleSpinBox::* )( double ) > ( &QDoubleSpinBox::valueChanged ), this, &QgsLayoutPropertiesWidget::resizeMarginsChanged );
83  connect( mLeftMarginSpinBox, static_cast < void ( QDoubleSpinBox::* )( double ) > ( &QDoubleSpinBox::valueChanged ), this, &QgsLayoutPropertiesWidget::resizeMarginsChanged );
84  connect( mResizePageButton, &QPushButton::clicked, this, &QgsLayoutPropertiesWidget::resizeToContents );
85 
86  connect( mResolutionSpinBox, static_cast < void ( QSpinBox::* )( int ) > ( &QSpinBox::valueChanged ), this, &QgsLayoutPropertiesWidget::dpiChanged );
87 
88  mReferenceMapComboBox->setCurrentLayout( mLayout );
89  mReferenceMapComboBox->setItemType( QgsLayoutItemRegistry::LayoutMap );
90  connect( mReferenceMapComboBox, &QgsLayoutItemComboBox::itemChanged, this, &QgsLayoutPropertiesWidget::referenceMapChanged );
91 
92  connect( mLayout, &QgsLayout::changed, this, &QgsLayoutPropertiesWidget::updateGui );
93 
94  updateVariables();
95  connect( mVariableEditor, &QgsVariableEditorWidget::scopeChanged, this, &QgsLayoutPropertiesWidget::variablesChanged );
96  // listen out for variable edits
97  connect( QgsApplication::instance(), &QgsApplication::customVariablesChanged, this, &QgsLayoutPropertiesWidget::updateVariables );
98  connect( QgsProject::instance(), &QgsProject::customVariablesChanged, this, &QgsLayoutPropertiesWidget::updateVariables );
99  connect( QgsProject::instance(), &QgsProject::metadataChanged, this, &QgsLayoutPropertiesWidget::updateVariables );
100  connect( &mLayout->renderContext(), &QgsLayoutRenderContext::dpiChanged, this, &QgsLayoutPropertiesWidget::updateVariables );
101  connect( mLayout->pageCollection(), &QgsLayoutPageCollection::changed, this, &QgsLayoutPropertiesWidget::updateVariables );
102  connect( mLayout, &QgsLayout::variablesChanged, this, &QgsLayoutPropertiesWidget::updateVariables );
103 
104  updateGui();
105 }
106 
108 {
109  if ( QgsPrintLayout *printLayout = dynamic_cast< QgsPrintLayout * >( masterLayout ) )
110  {
111  connect( printLayout, &QgsPrintLayout::nameChanged, this, &QgsLayoutPropertiesWidget::updateVariables );
112  connect( printLayout->atlas(), &QgsLayoutAtlas::coverageLayerChanged, this, &QgsLayoutPropertiesWidget::updateVariables );
113  }
114 }
115 
117 {
118  whileBlocking( mReferenceMapComboBox )->setItem( mLayout->referenceMap() );
119  whileBlocking( mResolutionSpinBox )->setValue( mLayout->renderContext().dpi() );
120 
121  bool rasterize = mLayout->customProperty( QStringLiteral( "rasterize" ), false ).toBool();
122  whileBlocking( mRasterizeCheckBox )->setChecked( rasterize );
123 
124  bool forceVectors = mLayout->customProperty( QStringLiteral( "forceVector" ), false ).toBool();
125  whileBlocking( mForceVectorCheckBox )->setChecked( forceVectors );
126 
127  if ( rasterize )
128  {
129  mForceVectorCheckBox->setChecked( false );
130  mForceVectorCheckBox->setEnabled( false );
131  }
132  else
133  {
134  mForceVectorCheckBox->setEnabled( true );
135  }
136 }
137 
138 void QgsLayoutPropertiesWidget::updateSnappingElements()
139 {
140  mSnapToleranceSpinBox->setValue( mLayout->snapper().snapTolerance() );
141 
142  mGridSpacingUnitsCombo->setUnit( mLayout->gridSettings().resolution().units() );
143  mGridResolutionSpinBox->setValue( mLayout->gridSettings().resolution().length() );
144 
145  mGridOffsetUnitsComboBox->setUnit( mLayout->gridSettings().offset().units() );
146  mOffsetXSpinBox->setValue( mLayout->gridSettings().offset().x() );
147  mOffsetYSpinBox->setValue( mLayout->gridSettings().offset().y() );
148 }
149 
150 void QgsLayoutPropertiesWidget::gridResolutionChanged( double d )
151 {
153  m.setLength( d );
154  mLayout->gridSettings().setResolution( m );
155  mLayout->pageCollection()->redraw();
156 }
157 
158 void QgsLayoutPropertiesWidget::gridResolutionUnitsChanged( QgsUnitTypes::LayoutUnit unit )
159 {
161  m.setUnits( unit );
162  mLayout->gridSettings().setResolution( m );
163  mLayout->pageCollection()->redraw();
164 }
165 
166 void QgsLayoutPropertiesWidget::gridOffsetXChanged( double d )
167 {
168  QgsLayoutPoint o = mLayout->gridSettings().offset();
169  o.setX( d );
170  mLayout->gridSettings().setOffset( o );
171  mLayout->pageCollection()->redraw();
172 }
173 
174 void QgsLayoutPropertiesWidget::gridOffsetYChanged( double d )
175 {
176  QgsLayoutPoint o = mLayout->gridSettings().offset();
177  o.setY( d );
178  mLayout->gridSettings().setOffset( o );
179  mLayout->pageCollection()->redraw();
180 }
181 
182 void QgsLayoutPropertiesWidget::gridOffsetUnitsChanged( QgsUnitTypes::LayoutUnit unit )
183 {
184  QgsLayoutPoint o = mLayout->gridSettings().offset();
185  o.setUnits( unit );
186  mLayout->gridSettings().setOffset( o );
187  mLayout->pageCollection()->redraw();
188 }
189 
190 void QgsLayoutPropertiesWidget::snapToleranceChanged( int tolerance )
191 {
192  mLayout->snapper().setSnapTolerance( tolerance );
193 }
194 
195 void QgsLayoutPropertiesWidget::resizeMarginsChanged()
196 {
197  mLayout->setCustomProperty( QStringLiteral( "resizeToContentsLeftMargin" ), mLeftMarginSpinBox->value() );
198  mLayout->setCustomProperty( QStringLiteral( "resizeToContentsTopMargin" ), mTopMarginSpinBox->value() );
199  mLayout->setCustomProperty( QStringLiteral( "resizeToContentsBottomMargin" ), mBottomMarginSpinBox->value() );
200  mLayout->setCustomProperty( QStringLiteral( "resizeToContentsRightMargin" ), mRightMarginSpinBox->value() );
201  mLayout->setCustomProperty( QStringLiteral( "imageCropMarginUnit" ), mMarginUnitsComboBox->unit() );
202 }
203 
204 void QgsLayoutPropertiesWidget::resizeToContents()
205 {
206  mLayout->undoStack()->beginMacro( tr( "Resize to Contents" ) );
207 
208  mLayout->pageCollection()->resizeToContents( QgsMargins( mLeftMarginSpinBox->value(),
209  mTopMarginSpinBox->value(),
210  mRightMarginSpinBox->value(),
211  mBottomMarginSpinBox->value() ),
212  mMarginUnitsComboBox->unit() );
213 
214  mLayout->undoStack()->endMacro();
215 }
216 
217 void QgsLayoutPropertiesWidget::referenceMapChanged( QgsLayoutItem *item )
218 {
219  mLayout->undoStack()->beginCommand( mLayout, tr( "Set Reference Map" ) );
220  QgsLayoutItemMap *map = qobject_cast< QgsLayoutItemMap * >( item );
221  mLayout->setReferenceMap( map );
222  mLayout->undoStack()->endCommand();
223 }
224 
225 void QgsLayoutPropertiesWidget::dpiChanged( int value )
226 {
227  mLayout->undoStack()->beginCommand( mLayout, tr( "Set Default DPI" ), QgsLayout::UndoLayoutDpi );
228  mLayout->renderContext().setDpi( value );
229  mLayout->undoStack()->endCommand();
230 
231  mLayout->refresh();
232 }
233 
234 void QgsLayoutPropertiesWidget::worldFileToggled()
235 {
236  mLayout->setCustomProperty( QStringLiteral( "exportWorldFile" ), mGenerateWorldFileCheckBox->isChecked() );
237 }
238 
239 void QgsLayoutPropertiesWidget::rasterizeToggled()
240 {
241  mLayout->setCustomProperty( QStringLiteral( "rasterize" ), mRasterizeCheckBox->isChecked() );
242 
243  if ( mRasterizeCheckBox->isChecked() )
244  {
245  mForceVectorCheckBox->setChecked( false );
246  mForceVectorCheckBox->setEnabled( false );
247  }
248  else
249  {
250  mForceVectorCheckBox->setEnabled( true );
251  }
252 }
253 
254 void QgsLayoutPropertiesWidget::forceVectorToggled()
255 {
256  mLayout->setCustomProperty( QStringLiteral( "forceVector" ), mForceVectorCheckBox->isChecked() );
257 }
258 
259 void QgsLayoutPropertiesWidget::variablesChanged()
260 {
261  mBlockVariableUpdates = true;
262  QgsExpressionContextUtils::setLayoutVariables( mLayout, mVariableEditor->variablesInActiveScope() );
263  mBlockVariableUpdates = false;
264 }
265 
266 void QgsLayoutPropertiesWidget::updateVariables()
267 {
268  if ( mBlockVariableUpdates )
269  return;
270 
271  QgsExpressionContext context;
275  mVariableEditor->setContext( &context );
276  mVariableEditor->setEditableScopeIndex( 2 );
277 }
278 
279 void QgsLayoutPropertiesWidget::blockSignals( bool block )
280 {
281  mGridResolutionSpinBox->blockSignals( block );
282  mOffsetXSpinBox->blockSignals( block );
283  mOffsetYSpinBox->blockSignals( block );
284  mSnapToleranceSpinBox->blockSignals( block );
285 }
286 
void customVariablesChanged()
Emitted whenever a custom global variable changes.
static QgsApplication * instance()
Returns the singleton instance of the QgsApplication.
The QgsSpinBox is a spin box with a clear button that will set the value to the defined clear value.
static QgsExpressionContextScope * layoutScope(const QgsLayout *layout)
Creates a new scope which contains variables and functions relating to a QgsLayout layout.
static QgsExpressionContextScope * projectScope(const QgsProject *project)
Creates a new scope which contains variables and functions relating to a QGIS project.
static void setLayoutVariables(QgsLayout *layout, const QVariantMap &variables)
Sets all layout context variables.
static QgsExpressionContextScope * globalScope()
Creates a new scope which contains variables and functions relating to the global QGIS context.
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
void coverageLayerChanged(QgsVectorLayer *layer)
Emitted when the coverage layer for the atlas changes.
QgsLayoutMeasurement resolution() const
Returns the page/snap grid resolution.
QgsLayoutPoint offset() const
Returns the offset of the page/snap grid.
void setOffset(const QgsLayoutPoint &offset)
Sets the offset of the page/snap grid.
void setResolution(QgsLayoutMeasurement resolution)
Sets the page/snap grid resolution.
void itemChanged(QgsLayoutItem *item)
Emitted whenever the currently selected item changes.
Layout graphical items for displaying a map.
Base class for graphical items within a QgsLayout.
This class provides a method of storing measurements for use in QGIS layouts using a variety of diffe...
void setLength(const double length)
Sets the length of the measurement.
double length() const
Returns the length of the measurement.
QgsUnitTypes::LayoutUnit units() const
Returns the units for the measurement.
void setUnits(const QgsUnitTypes::LayoutUnit units)
Sets the units for the measurement.
void changed()
Emitted when pages are added or removed from the collection.
void resizeToContents(const QgsMargins &margins, QgsUnitTypes::LayoutUnit marginUnits)
Resizes the layout to a single page which fits the current contents of the layout.
void redraw()
Triggers a redraw for all pages.
This class provides a method of storing points, consisting of an x and y coordinate,...
double x() const
Returns x coordinate of point.
void setUnits(const QgsUnitTypes::LayoutUnit units)
Sets the units for the point.
void setX(const double x)
Sets the x coordinate of point.
QgsUnitTypes::LayoutUnit units() const
Returns the units for the point.
double y() const
Returns y coordinate of point.
void setY(const double y)
Sets y coordinate of point.
void setMasterLayout(QgsMasterLayoutInterface *masterLayout)
Sets the master layout.
void updateGui()
Refreshes the gui to reflect the current layout settings.
QgsLayoutPropertiesWidget(QWidget *parent, QgsLayout *layout)
constructor
void setDpi(double dpi)
Sets the dpi for outputting the layout.
void dpiChanged()
Emitted when the context's DPI is changed.
double dpi() const
Returns the dpi for outputting the layout.
const QgsLayoutMeasurementConverter & measurementConverter() const
Returns the layout measurement converter to be used in the layout.
int snapTolerance() const
Returns the snap tolerance (in pixels) to use when snapping.
void setSnapTolerance(int snapTolerance)
Sets the snap tolerance (in pixels) to use when snapping.
void endCommand()
Saves final state of an object and pushes the active command to the undo history.
void beginMacro(const QString &commandText)
Starts a macro command, with the given descriptive commandText.
void beginCommand(QgsLayoutUndoObjectInterface *object, const QString &commandText, int id=0)
Begins a new undo command for the specified object.
void endMacro()
Ends a macro command.
void changed(QgsUnitTypes::LayoutUnit unit)
Emitted when the unit is changed.
Base class for layouts, which can contain items such as maps, labels, scalebars, etc.
Definition: qgslayout.h:51
void setCustomProperty(const QString &key, const QVariant &value)
Set a custom property for the layout.
Definition: qgslayout.cpp:407
QgsLayoutGridSettings & gridSettings()
Returns a reference to the layout's grid settings, which stores settings relating to grid appearance,...
Definition: qgslayout.h:419
QgsLayoutRenderContext & renderContext()
Returns a reference to the layout's render context, which stores information relating to the current ...
Definition: qgslayout.cpp:359
QgsLayoutPageCollection * pageCollection()
Returns a pointer to the layout's page collection, which stores and manages page items in the layout.
Definition: qgslayout.cpp:459
void variablesChanged()
Emitted whenever the expression variables stored in the layout have been changed.
QgsLayoutItemMap * referenceMap() const
Returns the map item which will be used to generate corresponding world files when the layout is expo...
Definition: qgslayout.cpp:430
void changed()
Emitted when properties of the layout change.
QVariant customProperty(const QString &key, const QVariant &defaultValue=QVariant()) const
Read a custom property from the layout.
Definition: qgslayout.cpp:415
QgsLayoutSnapper & snapper()
Returns a reference to the layout's snapper, which stores handles layout snap grids and lines and sna...
Definition: qgslayout.h:407
void refresh()
Forces the layout, and all items contained within it, to refresh.
Definition: qgslayout.cpp:804
void setReferenceMap(QgsLayoutItemMap *map)
Sets the map item which will be used to generate corresponding world files when the layout is exporte...
Definition: qgslayout.cpp:453
QgsLayoutUndoStack * undoStack()
Returns a pointer to the layout's undo stack, which manages undo/redo states for the layout and it's ...
Definition: qgslayout.cpp:686
@ UndoLayoutDpi
Change layout default DPI.
Definition: qgslayout.h:72
The QgsMargins class defines the four margins of a rectangle.
Definition: qgsmargins.h:38
Interface for master layout type objects, such as print layouts and reports.
Base class for any widget that can be shown as a inline panel.
void setPanelTitle(const QString &panelTitle)
Set the title of the panel when shown in the interface.
Print layout, a QgsLayout subclass for static or atlas-based layouts.
void nameChanged(const QString &name)
Emitted when the layout's name is changed.
static QgsProject * instance()
Returns the QgsProject singleton instance.
Definition: qgsproject.cpp:467
void metadataChanged()
Emitted when the project's metadata is changed.
void customVariablesChanged()
Emitted whenever the expression variables stored in the project have been changed.
LayoutUnit
Layout measurement units.
Definition: qgsunittypes.h:182
@ LayoutMillimeters
Millimeters.
Definition: qgsunittypes.h:183
void scopeChanged()
Emitted when the user has modified a scope using the widget.
QgsSignalBlocker< Object > whileBlocking(Object *object)
Temporarily blocks signals from a QObject while calling a single method from the object.
Definition: qgis.h:537