QGIS API Documentation
3.6.0-Noosa (5873452)
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Base class for frame items, which form a layout multiframe item. More...
#include <qgslayoutframe.h>
Public Member Functions | |
QgsLayoutFrame (QgsLayout *layout, QgsLayoutMultiFrame *multiFrame) | |
Constructor for QgsLayoutFrame, with the specified parent layout and belonging to a multiFrame. More... | |
void | cleanup () override |
Called just before a batch of items are deleted, allowing them to run cleanup tasks. More... | |
QgsExpressionContext | createExpressionContext () const override |
This method needs to be reimplemented in all classes which implement this interface and return an expression context. More... | |
QString | displayName () const override |
Gets item display name. More... | |
QRectF | extent () const |
Returns the visible portion of the multi frame's content which is shown in this frame, in layout units. More... | |
QgsLayoutSize | fixedSize () const override |
Returns the fixed size of the item, if applicable, or an empty size if item can be freely resized. More... | |
bool | hideBackgroundIfEmpty () const |
Returns whether the background and frame stroke should be hidden if this frame is empty. More... | |
bool | hidePageIfEmpty () const |
Returns whether the page should be hidden (ie, not included in layout exports) if this frame is empty. More... | |
QIcon | icon () const override |
Returns the item's icon. More... | |
bool | isEmpty () const |
Returns whether the frame is empty. More... | |
QgsLayoutSize | minimumSize () const override |
Returns the minimum allowed size of the item, if applicable, or an empty size if item can be freely resized. More... | |
QgsLayoutMultiFrame * | multiFrame () const |
Returns the parent multiframe for the frame. More... | |
void | setContentSection (const QRectF §ion) |
Sets the visible part of the multiframe's content which is visible within this frame (relative to the total multiframe extent in layout units). More... | |
void | setHideBackgroundIfEmpty (bool hideBackgroundIfEmpty) |
Sets whether the background and frame stroke should be hidden if this frame is empty. More... | |
void | setHidePageIfEmpty (bool hidePageIfEmpty) |
Sets whether the page should be hidden (ie, not included in layout exports) if this frame is empty. More... | |
int | type () const override |
Public Member Functions inherited from QgsLayoutItem | |
QgsLayoutItem (QgsLayout *layout, bool manageZValue=true) | |
Constructor for QgsLayoutItem, with the specified parent layout. More... | |
~QgsLayoutItem () override | |
virtual void | attemptMove (const QgsLayoutPoint &point, bool useReferencePoint=true, bool includesFrame=false, int page=-1) |
Attempts to move the item to a specified point. More... | |
void | attemptMoveBy (double deltaX, double deltaY) |
Attempts to shift the item's position by a specified deltaX and deltaY, in layout units. More... | |
virtual void | attemptResize (const QgsLayoutSize &size, bool includesFrame=false) |
Attempts to resize the item to a specified target size. More... | |
void | attemptSetSceneRect (const QRectF &rect, bool includesFrame=false) |
Attempts to update the item's position and size to match the passed rect in layout coordinates. More... | |
QColor | backgroundColor () const |
Returns the background color for this item. More... | |
void | beginCommand (const QString &commandText, UndoCommand command=UndoNone) |
Starts new undo command for this item. More... | |
QPainter::CompositionMode | blendMode () const |
Returns the item's composition blending mode. More... | |
void | cancelCommand () |
Cancels the current item command and discards it. More... | |
virtual bool | containsAdvancedEffects () const |
Returns true if the item contains contents with blend modes or transparency effects which can only be reproduced by rastering the item. More... | |
QgsAbstractLayoutUndoCommand * | createCommand (const QString &text, int id, QUndoCommand *parent=nullptr) override |
Creates a new layout undo command with the specified text and parent. More... | |
QgsExpressionContext | createExpressionContext () const override |
This method needs to be reimplemented in all classes which implement this interface and return an expression context. More... | |
void | endCommand () |
Completes the current item command and push it onto the layout's undo stack. More... | |
virtual double | estimatedFrameBleed () const |
Returns the estimated amount the item's frame bleeds outside the item's actual rectangle. More... | |
bool | excludeFromExports () const |
Returns whether the item should be excluded from layout exports and prints. More... | |
virtual void | finalizeRestoreFromXml () |
Called after all pending items have been restored from XML. More... | |
bool | frameEnabled () const |
Returns true if the item includes a frame. More... | |
Qt::PenJoinStyle | frameJoinStyle () const |
Returns the join style used for drawing the item's frame. More... | |
QColor | frameStrokeColor () const |
Returns the frame's stroke color. More... | |
QgsLayoutMeasurement | frameStrokeWidth () const |
Returns the frame's stroke width. More... | |
bool | hasBackground () const |
Returns true if the item has a background. More... | |
QString | id () const |
Returns the item's ID name. More... | |
bool | isGroupMember () const |
Returns true if the item is part of a QgsLayoutItemGroup group. More... | |
bool | isLocked () const |
Returns true if the item is locked, and cannot be interacted with using the mouse. More... | |
virtual Flags | itemFlags () const |
Returns the item's flags, which indicate how the item behaves. More... | |
double | itemOpacity () const |
Returns the item's opacity. More... | |
double | itemRotation () const |
Returns the current rotation for the item, in degrees clockwise. More... | |
virtual void | moveContent (double dx, double dy) |
Moves the content of the item, by a specified dx and dy in layout units. More... | |
virtual int | numberExportLayers () const |
Returns the number of layers that this item requires for exporting during layered exports (e.g. More... | |
int | page () const |
Returns the page the item is currently on, with the first page returning 0. More... | |
QPointF | pagePos () const |
Returns the item's position (in layout units) relative to the top left corner of its current page. More... | |
QgsLayoutPoint | pagePositionWithUnits () const |
Returns the item's position (in item units) relative to the top left corner of its current page. More... | |
void | paint (QPainter *painter, const QStyleOptionGraphicsItem *itemStyle, QWidget *pWidget) override |
Handles preparing a paint surface for the layout item and painting the item's content. More... | |
QgsLayoutItemGroup * | parentGroup () const |
Returns the item's parent group, if the item is part of a QgsLayoutItemGroup group. More... | |
QgsLayoutPoint | positionWithUnits () const |
Returns the item's current position, including units. More... | |
bool | readXml (const QDomElement &itemElement, const QDomDocument &document, const QgsReadWriteContext &context) |
Sets the item state from a DOM element. More... | |
virtual QRectF | rectWithFrame () const |
Returns the item's rectangular bounds, including any bleed caused by the item's frame. More... | |
ReferencePoint | referencePoint () const |
Returns the reference point for positioning of the layout item. More... | |
virtual bool | requiresRasterization () const |
Returns true if the item is drawn in such a way that forces the whole layout to be rasterized when exporting to vector formats. More... | |
void | setBackgroundColor (const QColor &color) |
Sets the background color for this item. More... | |
void | setBackgroundEnabled (bool drawBackground) |
Sets whether this item has a background drawn under it or not. More... | |
void | setBlendMode (QPainter::CompositionMode mode) |
Sets the item's composition blending mode. More... | |
void | setExcludeFromExports (bool exclude) |
Sets whether the item should be excluded from layout exports and prints. More... | |
virtual void | setFrameEnabled (bool drawFrame) |
Sets whether this item has a frame drawn around it or not. More... | |
void | setFrameJoinStyle (Qt::PenJoinStyle style) |
Sets the join style used when drawing the item's frame. More... | |
void | setFrameStrokeColor (const QColor &color) |
Sets the frame stroke color. More... | |
virtual void | setFrameStrokeWidth (QgsLayoutMeasurement width) |
Sets the frame stroke width. More... | |
virtual void | setId (const QString &id) |
Set the item's id name. More... | |
void | setItemOpacity (double opacity) |
Sets the item's opacity. More... | |
void | setLocked (bool locked) |
Sets whether the item is locked, preventing mouse interactions with the item. More... | |
virtual void | setMoveContentPreviewOffset (double dx, double dy) |
Sets temporary offset for the item, by a specified dx and dy in layout units. More... | |
void | setParentGroup (QgsLayoutItemGroup *group) |
Sets the item's parent group. More... | |
void | setReferencePoint (ReferencePoint point) |
Sets the reference point for positioning of the layout item. More... | |
virtual void | setSelected (bool selected) |
Sets whether the item should be selected. More... | |
virtual void | setVisibility (bool visible) |
Sets whether the item is visible. More... | |
bool | shouldDrawItem () const |
Returns whether the item should be drawn in the current context. More... | |
QgsLayoutSize | sizeWithUnits () const |
Returns the item's current size, including units. More... | |
int | type () const override |
Returns a unique graphics item type identifier. More... | |
virtual QString | uuid () const |
Returns the item identification string. More... | |
bool | writeXml (QDomElement &parentElement, QDomDocument &document, const QgsReadWriteContext &context) const |
Stores the item state in a DOM element. More... | |
virtual void | zoomContent (double factor, QPointF point) |
Zooms content of item. More... | |
Public Member Functions inherited from QgsLayoutObject | |
QgsLayoutObject (QgsLayout *layout) | |
Constructor for QgsLayoutObject, with the specified parent layout. More... | |
QgsExpressionContext | createExpressionContext () const override |
Creates an expression context relating to the objects' current state. More... | |
QStringList | customProperties () const |
Returns list of keys stored in custom properties for the object. More... | |
QVariant | customProperty (const QString &key, const QVariant &defaultValue=QVariant()) const |
Read a custom property from the object. More... | |
QgsPropertyCollection & | dataDefinedProperties () |
Returns a reference to the object's property collection, used for data defined overrides. More... | |
const QgsPropertyCollection & | dataDefinedProperties () const |
Returns a reference to the object's property collection, used for data defined overrides. More... | |
const QgsLayout * | layout () const |
Returns the layout the object is attached to. More... | |
QgsLayout * | layout () |
Returns the layout the object is attached to. More... | |
void | removeCustomProperty (const QString &key) |
Remove a custom property from the object. More... | |
void | setCustomProperty (const QString &key, const QVariant &value) |
Set a custom property for the object. More... | |
void | setDataDefinedProperties (const QgsPropertyCollection &collection) |
Sets the objects's property collection, used for data defined overrides. More... | |
Public Member Functions inherited from QgsExpressionContextGenerator | |
virtual | ~QgsExpressionContextGenerator ()=default |
Public Member Functions inherited from QgsLayoutUndoObjectInterface | |
virtual | ~QgsLayoutUndoObjectInterface ()=default |
Destructor for QgsLayoutUndoObjectInterface. More... | |
Static Public Member Functions | |
static QgsLayoutFrame * | create (QgsLayout *layout) |
Creates a new QgsLayoutFrame belonging to the specified layout. More... | |
Static Public Member Functions inherited from QgsLayoutObject | |
static const QgsPropertiesDefinition & | propertyDefinitions () |
Returns the layout object property definitions. More... | |
Protected Member Functions | |
void | draw (QgsLayoutItemRenderContext &context) override |
Draws the item's contents using the specified item render context. More... | |
void | drawBackground (QgsRenderContext &context) override |
Draws the background for the item. More... | |
void | drawFrame (QgsRenderContext &context) override |
Draws the frame around the item. More... | |
bool | readPropertiesFromElement (const QDomElement &itemElement, const QDomDocument &document, const QgsReadWriteContext &context) override |
Sets item state from a DOM element. More... | |
bool | writePropertiesToElement (QDomElement &parentElement, QDomDocument &document, const QgsReadWriteContext &context) const override |
Stores item state within an XML DOM element. More... | |
Protected Member Functions inherited from QgsLayoutItem | |
QPointF | adjustPointForReferencePosition (QPointF point, QSizeF size, ReferencePoint reference) const |
Adjusts the specified point at which a reference position of the item sits and returns the top left corner of the item, if reference point were placed at the specified position. More... | |
QgsLayoutSize | applyDataDefinedSize (const QgsLayoutSize &size) |
Applies any present data defined size overrides to the specified layout size. More... | |
virtual QSizeF | applyItemSizeConstraint (QSizeF targetSize) |
Applies any item-specific size constraint handling to a given targetSize in layout units. More... | |
virtual void | drawDebugRect (QPainter *painter) |
Draws a debugging rectangle of the item's current bounds within the specified painter. More... | |
QPointF | positionAtReferencePoint (ReferencePoint reference) const |
Returns the current position (in layout units) of a reference point for the item. More... | |
void | refreshBackgroundColor (bool updateItem=true) |
Refresh item's background color, considering data defined colors. More... | |
void | refreshBlendMode () |
Refresh item's blend mode, considering data defined blend mode. More... | |
void | refreshFrame (bool updateItem=true) |
Refresh item's frame, considering data defined colors and frame size. More... | |
void | refreshItemPosition () |
Refreshes an item's position by rechecking it against any possible overrides such as data defined positioning. More... | |
void | refreshItemRotation (QPointF *origin=nullptr) |
Refreshes an item's rotation by rechecking it against any possible overrides such as data defined rotation. More... | |
void | refreshItemSize () |
Refreshes an item's size by rechecking it against any possible item fixed or minimum sizes. More... | |
void | refreshOpacity (bool updateItem=true) |
Refresh item's opacity, considering data defined opacity. More... | |
virtual void | setFixedSize (const QgsLayoutSize &size) |
Sets a fixed size for the layout item, which prevents it from being freely resized. More... | |
virtual void | setMinimumSize (const QgsLayoutSize &size) |
Sets the minimum allowed size for the layout item. More... | |
QgsLayoutPoint | topLeftToReferencePoint (const QgsLayoutPoint &point) const |
Returns the position for the reference point of the item, if the top-left of the item was placed at the specified point. More... | |
Protected Member Functions inherited from QgsLayoutObject | |
bool | readObjectPropertiesFromElement (const QDomElement &parentElement, const QDomDocument &document, const QgsReadWriteContext &context) |
Sets object properties from a DOM element. More... | |
bool | writeObjectPropertiesToElement (QDomElement &parentElement, QDomDocument &document, const QgsReadWriteContext &context) const |
Stores object properties within an XML DOM element. More... | |
Friends | |
class | QgsLayoutMultiFrame |
Base class for frame items, which form a layout multiframe item.
Definition at line 31 of file qgslayoutframe.h.
QgsLayoutFrame::QgsLayoutFrame | ( | QgsLayout * | layout, |
QgsLayoutMultiFrame * | multiFrame | ||
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Constructor for QgsLayoutFrame, with the specified parent layout and belonging to a multiFrame.
Definition at line 22 of file qgslayoutframe.cpp.
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overridevirtual |
Called just before a batch of items are deleted, allowing them to run cleanup tasks.
Reimplemented from QgsLayoutItem.
Definition at line 153 of file qgslayoutframe.cpp.
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static |
Creates a new QgsLayoutFrame belonging to the specified layout.
Definition at line 44 of file qgslayoutframe.cpp.
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overridevirtual |
This method needs to be reimplemented in all classes which implement this interface and return an expression context.
Implements QgsExpressionContextGenerator.
Definition at line 123 of file qgslayoutframe.cpp.
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overridevirtual |
Gets item display name.
This is the item's id if set, and if not, a user-friendly string identifying item type.
Reimplemented from QgsLayoutItem.
Definition at line 138 of file qgslayoutframe.cpp.
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overrideprotectedvirtual |
Draws the item's contents using the specified item render context.
Note that the context's painter has been scaled so that painter units are pixels. Use the QgsRenderContext methods to convert from millimeters or other units to the painter's units.
Implements QgsLayoutItem.
Definition at line 161 of file qgslayoutframe.cpp.
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overrideprotectedvirtual |
Draws the background for the item.
Reimplemented from QgsLayoutItem.
Definition at line 180 of file qgslayoutframe.cpp.
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overrideprotectedvirtual |
Draws the frame around the item.
Reimplemented from QgsLayoutItem.
Definition at line 172 of file qgslayoutframe.cpp.
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inline |
Returns the visible portion of the multi frame's content which is shown in this frame, in layout units.
Definition at line 76 of file qgslayoutframe.h.
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overridevirtual |
Returns the fixed size of the item, if applicable, or an empty size if item can be freely resized.
Reimplemented from QgsLayoutItem.
Definition at line 65 of file qgslayoutframe.cpp.
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inline |
Returns whether the background and frame stroke should be hidden if this frame is empty.
Definition at line 97 of file qgslayoutframe.h.
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inline |
Returns whether the page should be hidden (ie, not included in layout exports) if this frame is empty.
Definition at line 83 of file qgslayoutframe.h.
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overridevirtual |
Returns the item's icon.
Reimplemented from QgsLayoutItem.
Definition at line 81 of file qgslayoutframe.cpp.
bool QgsLayoutFrame::isEmpty | ( | ) | const |
Returns whether the frame is empty.
Definition at line 105 of file qgslayoutframe.cpp.
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overridevirtual |
Returns the minimum allowed size of the item, if applicable, or an empty size if item can be freely resized.
Reimplemented from QgsLayoutItem.
Definition at line 54 of file qgslayoutframe.cpp.
QgsLayoutMultiFrame * QgsLayoutFrame::multiFrame | ( | ) | const |
Returns the parent multiframe for the frame.
Definition at line 49 of file qgslayoutframe.cpp.
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overrideprotectedvirtual |
Sets item state from a DOM element.
element | is the DOM element for the item |
document | DOM document |
context | read write context |
Note that item subclasses should not rely on all other items being present in the layout at the time this method is called. Instead, any connections and links to other items must be made in the finalizeRestoreFromXml() method. E.g. when restoring a scalebar, the connection to the linked map's signals should be implemented in finalizeRestoreFromXml(), not readPropertiesFromElement().
Reimplemented from QgsLayoutItem.
Definition at line 201 of file qgslayoutframe.cpp.
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inline |
Sets the visible part of the multiframe's content which is visible within this frame (relative to the total multiframe extent in layout units).
Definition at line 61 of file qgslayoutframe.h.
void QgsLayoutFrame::setHideBackgroundIfEmpty | ( | bool | hideBackgroundIfEmpty | ) |
Sets whether the background and frame stroke should be hidden if this frame is empty.
hideBackgroundIfEmpty | set to true if background and stroke should be hidden if frame is empty |
Definition at line 94 of file qgslayoutframe.cpp.
void QgsLayoutFrame::setHidePageIfEmpty | ( | bool | hidePageIfEmpty | ) |
Sets whether the page should be hidden (ie, not included in layout exports) if this frame is empty.
hidePageIfEmpty | set to true if page should be hidden if frame is empty |
Definition at line 89 of file qgslayoutframe.cpp.
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override |
Definition at line 76 of file qgslayoutframe.cpp.
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overrideprotectedvirtual |
Stores item state within an XML DOM element.
element | is the DOM element to store the item's properties in |
document | DOM document |
context | read write context |
Reimplemented from QgsLayoutItem.
Definition at line 188 of file qgslayoutframe.cpp.
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friend |
Definition at line 133 of file qgslayoutframe.h.