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QgsComposerMap Class Reference

Object representing map window. More...

#include <qgscomposermap.h>

Inheritance diagram for QgsComposerMap:
Inheritance graph
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Public Types

enum  PreviewMode { Cache = 0, Render, Rectangle }
 Preview style. More...
 
enum  GridStyle { Solid = 0, Cross, Markers, FrameAnnotationsOnly }
 
enum  GridAnnotationPosition { InsideMapFrame = 0, OutsideMapFrame, Disabled }
 
enum  GridAnnotationDirection { Horizontal = 0, Vertical, HorizontalAndVertical, BoundaryDirection }
 
enum  GridAnnotationFormat {
  Decimal = 0, DegreeMinute, DegreeMinuteSecond, DecimalWithSuffix,
  DegreeMinuteNoSuffix, DegreeMinutePadded, DegreeMinuteSecondNoSuffix, DegreeMinuteSecondPadded
}
 
enum  GridFrameStyle {
  NoGridFrame = 0, Zebra, InteriorTicks, ExteriorTicks,
  InteriorExteriorTicks, LineBorder
}
 
enum  Border { Left, Right, Bottom, Top }
 Enum for different frame borders. More...
 
enum  AtlasScalingMode { Fixed, Predefined, Auto }
 Scaling modes used for the serial rendering (atlas) More...
 
- Public Types inherited from QgsComposerItem
enum  ItemType {
  ComposerItem = UserType + 100, ComposerArrow, ComposerItemGroup, ComposerLabel,
  ComposerLegend, ComposerMap, ComposerPaper, ComposerPicture,
  ComposerScaleBar, ComposerShape, ComposerTable, ComposerAttributeTable,
  ComposerTextTable, ComposerFrame
}
 
enum  MouseMoveAction {
  MoveItem, ResizeUp, ResizeDown, ResizeLeft,
  ResizeRight, ResizeLeftUp, ResizeRightUp, ResizeLeftDown,
  ResizeRightDown, NoAction
}
 Describes the action (move or resize in different directon) to be done during mouse move. More...
 
enum  ItemPositionMode {
  UpperLeft, UpperMiddle, UpperRight, MiddleLeft,
  Middle, MiddleRight, LowerLeft, LowerMiddle,
  LowerRight
}
 
enum  ZoomMode { Zoom = 0, ZoomRecenter, ZoomToPoint, NoZoom }
 Modes for zooming item content. More...
 
- Public Types inherited from QgsComposerObject
enum  DataDefinedProperty {
  NoProperty = 0, AllProperties, TestProperty, PresetPaperSize,
  PaperWidth, PaperHeight, NumPages, PaperOrientation,
  PageNumber, PositionX, PositionY, ItemWidth,
  ItemHeight, ItemRotation, Transparency, BlendMode,
  ExcludeFromExports, MapRotation, MapScale, MapXMin,
  MapYMin, MapXMax, MapYMax, MapAtlasMargin,
  PictureSource, SourceUrl
}
 Data defined properties for different item types. More...
 
enum  PropertyValueType { EvaluatedValue = 0, OriginalValue }
 Specifies whether the value returned by a function should be the original, user set value, or the current evaluated value for the property. More...
 

Public Slots

void updateCachedImage ()
 Called if map canvas has changed. More...
 
void renderModeUpdateCachedImage ()
 Call updateCachedImage if item is in render mode. More...
 
void updateBoundingRect ()
 Updates the bounding rect of this item. More...
 
void overviewExtentChanged ()
 
- Public Slots inherited from QgsComposerItem
virtual void setItemRotation (const double r, const bool adjustPosition=false)
 Sets the item rotation. More...
 
void repaint ()
 
- Public Slots inherited from QgsComposerObject
virtual void repaint ()
 Triggers a redraw for the item. More...
 

Signals

void extentChanged ()
 
void mapRotationChanged (double newRotation)
 Is emitted on rotation change to notify north arrow pictures. More...
 
void preparedForAtlas ()
 Is emitted when the map has been prepared for atlas rendering, just before actual rendering. More...
 
- Signals inherited from QgsComposerItem
void itemRotationChanged (double newRotation)
 Is emitted on item rotation change. More...
 
void sizeChanged ()
 Emitted if the rectangle changes. More...
 
void frameChanged ()
 Emitted if the item's frame style changes. More...
 
void lockChanged ()
 Emitted if the item's lock status changes. More...
 
- Signals inherited from QgsComposerObject
void itemChanged ()
 Emitted when the item changes. More...
 

Public Member Functions

 QgsComposerMap (QgsComposition *composition, int x, int y, int width, int height)
 Constructor. More...
 
 QgsComposerMap (QgsComposition *composition)
 Constructor. More...
 
virtual ~QgsComposerMap ()
 
virtual int type () const
 return correct graphics item type. More...
 
void draw (QPainter *painter, const QgsRectangle &extent, const QSizeF &size, double dpi, double *forceWidthScale=0)
 Draw to paint device. More...
 
void paint (QPainter *painter, const QStyleOptionGraphicsItem *itemStyle, QWidget *pWidget)
 Reimplementation of QCanvasItem::paint - draw on canvas. More...
 
void cache ()
 Create cache image. More...
 
QgsMapSettings mapSettings (const QgsRectangle &extent, const QSizeF &size, int dpi) const
 Return map settings that would be used for drawing of the map. More...
 
int id () const
 Get identification number. More...
 
bool isDrawing () const
 True if a draw is already in progress. More...
 
void resize (double dx, double dy)
 resizes an item in x- and y direction (canvas coordinates) More...
 
void moveContent (double dx, double dy)
 Move content of map. More...
 
Q_DECL_DEPRECATED void zoomContent (int delta, double x, double y)
 Zoom content of map. More...
 
virtual void zoomContent (const double factor, const QPointF point, const ZoomMode mode=QgsComposerItem::Zoom)
 Zoom content of item. More...
 
void setSceneRect (const QRectF &rectangle)
 Sets new scene rectangle bounds and recalculates hight and extent. More...
 
double scale () const
 Scale. More...
 
void setNewScale (double scaleDenominator, bool forceUpdate=true)
 Sets new scale and changes only mExtent. More...
 
void setNewExtent (const QgsRectangle &extent)
 Sets new extent for the map. More...
 
void zoomToExtent (const QgsRectangle &extent)
 Zooms the map so that the specified extent is fully visible within the map item. More...
 
void setNewAtlasFeatureExtent (const QgsRectangle &extent)
 Sets new Extent for the current atlas preview and changes width, height (and implicitely also scale). More...
 
Q_DECL_DEPRECATED void toggleAtlasPreview ()
 Called when atlas preview is toggled, to force map item to update its extent and redraw. More...
 
QgsRectanglecurrentMapExtent ()
 Returns a pointer to the current map extent, which is either the original user specified extent or the temporary atlas-driven feature extent depending on the current atlas state of the composition. More...
 
const QgsRectanglecurrentMapExtent () const
 
PreviewMode previewMode () const
 
void setPreviewMode (PreviewMode m)
 
bool keepLayerSet () const
 Getter for flag that determines if the stored layer set should be used or the current layer set of the qgis mapcanvas. More...
 
void setKeepLayerSet (bool enabled)
 Setter for flag that determines if the stored layer set should be used or the current layer set of the qgis mapcanvas. More...
 
QStringList layerSet () const
 Getter for stored layer set that is used if mKeepLayerSet is true. More...
 
void setLayerSet (const QStringList &layerSet)
 Setter for stored layer set that is used if mKeepLayerSet is true. More...
 
void storeCurrentLayerSet ()
 Stores the current layer set of the qgis mapcanvas in mLayerSet. More...
 
void setCacheUpdated (bool u=false)
 
QgsRectangle extent () const
 
Q_DECL_DEPRECATED const
QgsMapRenderer
mapRenderer () const
 
void setOffset (double xOffset, double yOffset)
 Sets offset values to shift image (useful for live updates when moving item content) More...
 
bool containsWMSLayer () const
 True if composer map renders a WMS layer. More...
 
bool containsAdvancedEffects () const
 True if composer map contains layers with blend modes or flattened layers for vectors. More...
 
bool writeXML (QDomElement &elem, QDomDocument &doc) const
 stores state in Dom node More...
 
bool readXML (const QDomElement &itemElem, const QDomDocument &doc)
 sets state from Dom document More...
 
Q_DECL_DEPRECATED void setGridEnabled (bool enabled)
 Enables a coordinate grid that is shown on top of this composermap. More...
 
Q_DECL_DEPRECATED bool gridEnabled () const
 
Q_DECL_DEPRECATED void setGridStyle (GridStyle style)
 Sets coordinate grid style to solid or cross. More...
 
Q_DECL_DEPRECATED GridStyle gridStyle () const
 
Q_DECL_DEPRECATED void setGridIntervalX (double interval)
 Sets coordinate interval in x-direction for composergrid. More...
 
Q_DECL_DEPRECATED double gridIntervalX () const
 
Q_DECL_DEPRECATED void setGridIntervalY (double interval)
 Sets coordinate interval in y-direction for composergrid. More...
 
Q_DECL_DEPRECATED double gridIntervalY () const
 
Q_DECL_DEPRECATED void setGridOffsetX (double offset)
 Sets x-coordinate offset for composer grid. More...
 
Q_DECL_DEPRECATED double gridOffsetX () const
 
Q_DECL_DEPRECATED void setGridOffsetY (double offset)
 Sets y-coordinate offset for composer grid. More...
 
Q_DECL_DEPRECATED double gridOffsetY () const
 
Q_DECL_DEPRECATED void setGridPen (const QPen &p)
 Sets the pen to draw composer grid. More...
 
Q_DECL_DEPRECATED QPen gridPen () const
 
Q_DECL_DEPRECATED void setGridPenWidth (double w)
 Sets width of grid pen. More...
 
Q_DECL_DEPRECATED void setGridPenColor (const QColor &c)
 Sets the color of the grid pen. More...
 
Q_DECL_DEPRECATED void setGridAnnotationFont (const QFont &f)
 Sets font for grid annotations. More...
 
Q_DECL_DEPRECATED QFont gridAnnotationFont () const
 
Q_DECL_DEPRECATED void setAnnotationFontColor (const QColor &c)
 Sets font color for grid annotations. More...
 
Q_DECL_DEPRECATED QColor annotationFontColor () const
 Get font color for grid annotations. More...
 
Q_DECL_DEPRECATED void setGridAnnotationPrecision (int p)
 Sets coordinate precision for grid annotations. More...
 
Q_DECL_DEPRECATED int gridAnnotationPrecision () const
 
Q_DECL_DEPRECATED void setShowGridAnnotation (bool show)
 Sets flag if grid annotation should be shown. More...
 
Q_DECL_DEPRECATED bool showGridAnnotation () const
 
Q_DECL_DEPRECATED void setGridAnnotationPosition (GridAnnotationPosition p, QgsComposerMap::Border border)
 
Q_DECL_DEPRECATED
GridAnnotationPosition 
gridAnnotationPosition (QgsComposerMap::Border border) const
 
Q_DECL_DEPRECATED void setAnnotationFrameDistance (double d)
 Sets distance between map frame and annotations. More...
 
Q_DECL_DEPRECATED double annotationFrameDistance () const
 
Q_DECL_DEPRECATED void setGridAnnotationDirection (GridAnnotationDirection d, QgsComposerMap::Border border)
 
Q_DECL_DEPRECATED
GridAnnotationDirection 
gridAnnotationDirection (QgsComposerMap::Border border) const
 
Q_DECL_DEPRECATED void setGridAnnotationFormat (GridAnnotationFormat f)
 
Q_DECL_DEPRECATED
GridAnnotationFormat 
gridAnnotationFormat () const
 
Q_DECL_DEPRECATED void setGridFrameStyle (GridFrameStyle style)
 Set grid frame style (NoGridFrame or Zebra) More...
 
Q_DECL_DEPRECATED GridFrameStyle gridFrameStyle () const
 
Q_DECL_DEPRECATED void setGridFrameWidth (double w)
 Set grid frame width. More...
 
Q_DECL_DEPRECATED double gridFrameWidth () const
 
Q_DECL_DEPRECATED void setGridFramePenSize (double w)
 Set grid frame pen thickness. More...
 
Q_DECL_DEPRECATED double gridFramePenSize () const
 
Q_DECL_DEPRECATED void setGridFramePenColor (const QColor &c)
 Sets pen color for grid frame. More...
 
Q_DECL_DEPRECATED QColor gridFramePenColor () const
 Get pen color for grid frame. More...
 
Q_DECL_DEPRECATED void setGridFrameFillColor1 (const QColor &c)
 Sets first fill color for grid zebra frame. More...
 
Q_DECL_DEPRECATED QColor gridFrameFillColor1 () const
 Get first fill color for grid zebra frame. More...
 
Q_DECL_DEPRECATED void setGridFrameFillColor2 (const QColor &c)
 Sets second fill color for grid zebra frame. More...
 
Q_DECL_DEPRECATED QColor gridFrameFillColor2 () const
 Get second fill color for grid zebra frame. More...
 
Q_DECL_DEPRECATED void setCrossLength (double l)
 Sets length of the cross segments (if grid style is cross) More...
 
Q_DECL_DEPRECATED double crossLength ()
 
Q_DECL_DEPRECATED void setGridLineSymbol (QgsLineSymbolV2 *symbol)
 
Q_DECL_DEPRECATED QgsLineSymbolV2gridLineSymbol ()
 
Q_DECL_DEPRECATED
QPainter::CompositionMode 
gridBlendMode () const
 Returns the grid's blending mode. More...
 
Q_DECL_DEPRECATED void setGridBlendMode (QPainter::CompositionMode blendMode)
 Sets the grid's blending mode. More...
 
QgsComposerMapGridStackgrids ()
 Returns the map item's grid stack, which is used to control how grids are drawn over the map's contents. More...
 
QgsComposerMapGridgrid ()
 Returns the map item's first grid. More...
 
QgsComposerMapOverviewStackoverviews ()
 Returns the map item's overview stack, which is used to control how overviews are drawn over the map's contents. More...
 
QgsComposerMapOverviewoverview ()
 Returns the map item's first overview. More...
 
QRectF boundingRect () const
 In case of annotations, the bounding rectangle can be larger than the map item rectangle. More...
 
virtual void setFrameOutlineWidth (const double outlineWidth)
 Sets frame outline width. More...
 
Q_DECL_DEPRECATED void setRotation (double r)
 Sets rotation for the map - this does not affect the composer item shape, only the way the map is drawn within the item. More...
 
Q_DECL_DEPRECATED double rotation () const
 Returns the rotation used for drawing the map within the composer item. More...
 
void setMapRotation (double r)
 Sets rotation for the map - this does not affect the composer item shape, only the way the map is drawn within the item. More...
 
double mapRotation (QgsComposerObject::PropertyValueType valueType=QgsComposerObject::EvaluatedValue) const
 Returns the rotation used for drawing the map within the composer item. More...
 
void updateItem ()
 Updates item, with the possibility to do custom update for subclasses. More...
 
void setMapCanvas (QGraphicsView *canvas)
 Sets canvas pointer (necessary to query and draw map canvas items) More...
 
void setDrawCanvasItems (bool b)
 
bool drawCanvasItems () const
 
double mapUnitsToMM () const
 Returns the conversion factor map units -> mm. More...
 
Q_DECL_DEPRECATED void setOverviewFrameMap (int mapId)
 Sets overview frame map. More...
 
Q_DECL_DEPRECATED int overviewFrameMapId () const
 Returns id of overview frame (or -1 if no overfiew frame) More...
 
Q_DECL_DEPRECATED void setOverviewFrameMapSymbol (QgsFillSymbolV2 *symbol)
 
Q_DECL_DEPRECATED QgsFillSymbolV2overviewFrameMapSymbol ()
 
Q_DECL_DEPRECATED
QPainter::CompositionMode 
overviewBlendMode () const
 Returns the overview's blending mode. More...
 
Q_DECL_DEPRECATED void setOverviewBlendMode (QPainter::CompositionMode blendMode)
 Sets the overview's blending mode. More...
 
Q_DECL_DEPRECATED bool overviewInverted () const
 Returns true if the overview frame is inverted. More...
 
Q_DECL_DEPRECATED void setOverviewInverted (bool inverted)
 Sets the overview's inversion mode. More...
 
Q_DECL_DEPRECATED bool overviewCentered () const
 Returns true if the extent is forced to center on the overview. More...
 
Q_DECL_DEPRECATED void setOverviewCentered (bool centered)
 Set the overview's centering mode. More...
 
void assignFreeId ()
 Sets mId to a number not yet used in the composition. More...
 
Q_DECL_DEPRECATED bool imageSizeConsideringRotation (double &width, double &height) const
 Calculates width and hight of the picture (in mm) such that it fits into the item frame with the given rotation. More...
 
Q_DECL_DEPRECATED bool cornerPointOnRotatedAndScaledRect (double &x, double &y, double width, double height) const
 Calculates corner point after rotation and scaling. More...
 
Q_DECL_DEPRECATED void sizeChangedByRotation (double &width, double &height)
 Calculates width / height of the bounding box of a rotated rectangle. More...
 
bool atlasDriven () const
 Returns whether the map extent is set to follow the current atlas feature. More...
 
void setAtlasDriven (bool enabled)
 Sets whether the map extent will follow the current atlas feature. More...
 
Q_DECL_DEPRECATED bool atlasFixedScale () const
 Returns true if the map uses a fixed scale when in atlas mode. More...
 
Q_DECL_DEPRECATED void setAtlasFixedScale (bool fixed)
 Set to true if the map should use a fixed scale when in atlas mode. More...
 
AtlasScalingMode atlasScalingMode () const
 Returns the current atlas scaling mode. More...
 
void setAtlasScalingMode (AtlasScalingMode mode)
 Sets the current atlas scaling mode. More...
 
double atlasMargin (const QgsComposerObject::PropertyValueType valueType=QgsComposerObject::EvaluatedValue)
 Returns the margin size (percentage) used when the map is in atlas mode. More...
 
void setAtlasMargin (double margin)
 Sets the margin size (percentage) used when the map is in atlas mode. More...
 
void setUpdatesEnabled (bool enabled)
 Sets whether updates to the composer map are enabled. More...
 
bool updatesEnabled () const
 Returns whether updates to the composer map are enabled. More...
 
int numberExportLayers () const
 Get the number of layers that this item requires for exporting as layers. More...
 
QPolygonF visibleExtentPolygon () const
 Returns a polygon representing the current visible map extent, considering map extents and rotation. More...
 
virtual QString displayName () const
 Get item display name. More...
 
QPolygonF transformedMapPolygon () const
 Returns extent that considers rotation and shift with mOffsetX / mOffsetY. More...
 
QPointF mapToItemCoords (const QPointF &mapCoords) const
 Transforms map coordinates to item coordinates (considering rotation and move offset) More...
 
Q_DECL_DEPRECATED void connectMapOverviewSignals ()
 
void requestedExtent (QgsRectangle &extent) const
 Calculates the extent to request and the yShift of the top-left point in case of rotation. More...
 
virtual void refreshDataDefinedProperty (const QgsComposerObject::DataDefinedProperty property=QgsComposerObject::AllProperties)
 Refreshes a data defined property for the item by reevaluating the property's value and redrawing the item with this new value. More...
 
- Public Member Functions inherited from QgsComposerItem
 QgsComposerItem (QgsComposition *composition, bool manageZValue=true)
 Constructor. More...
 
 QgsComposerItem (qreal x, qreal y, qreal width, qreal height, QgsComposition *composition, bool manageZValue=true)
 Constructor with box position and composer object. More...
 
virtual ~QgsComposerItem ()
 
virtual bool isRemoved () const
 Returns whether this item has been removed from the composition. More...
 
void setIsRemoved (const bool removed)
 Sets whether this item has been removed from the composition. More...
 
virtual void setSelected (bool s)
 Set selected, selected item should be highlighted. More...
 
virtual bool selected () const
 Is selected. More...
 
void move (double dx, double dy)
 Moves item in canvas coordinates. More...
 
int page () const
 Gets the page the item is currently on. More...
 
QPointF pagePos () const
 Returns the item's position relative to its current page. More...
 
void updatePagePos (double newPageWidth, double newPageHeight)
 Moves the item so that it retains its relative position on the page when the paper size changes. More...
 
void setItemPosition (double x, double y, ItemPositionMode itemPoint=UpperLeft, int page=-1)
 Moves the item to a new position (in canvas coordinates) More...
 
void setItemPosition (double x, double y, double width, double height, ItemPositionMode itemPoint=UpperLeft, bool posIncludesFrame=false, int page=-1)
 Sets item position and width / height in one go. More...
 
ItemPositionMode lastUsedPositionMode ()
 Returns item's last used position mode. More...
 
bool _writeXML (QDomElement &itemElem, QDomDocument &doc) const
 Writes parameter that are not subclass specific in document. More...
 
bool _readXML (const QDomElement &itemElem, const QDomDocument &doc)
 Reads parameter that are not subclass specific in document. More...
 
bool hasFrame () const
 Whether this item has a frame or not. More...
 
void setFrameEnabled (const bool drawFrame)
 Set whether this item has a frame drawn around it or not. More...
 
virtual void setFrameOutlineColor (const QColor &color)
 Sets frame outline color. More...
 
QColor frameOutlineColor () const
 Returns the frame's outline color. More...
 
double frameOutlineWidth () const
 Returns the frame's outline width. More...
 
Qt::PenJoinStyle frameJoinStyle () const
 Returns the join style used for drawing the item's frame. More...
 
void setFrameJoinStyle (const Qt::PenJoinStyle style)
 Sets join style used when drawing the item's frame. More...
 
virtual double estimatedFrameBleed () const
 Returns the estimated amount the item's frame bleeds outside the item's actual rectangle. More...
 
virtual QRectF rectWithFrame () const
 Returns the item's rectangular bounds, including any bleed caused by the item's frame. More...
 
bool hasBackground () const
 Whether this item has a Background or not. More...
 
void setBackgroundEnabled (const bool drawBackground)
 Set whether this item has a Background drawn around it or not. More...
 
QColor backgroundColor () const
 Gets the background color for this item. More...
 
void setBackgroundColor (const QColor &backgroundColor)
 Sets the background color for this item. More...
 
QPainter::CompositionMode blendMode () const
 Returns the item's composition blending mode. More...
 
void setBlendMode (const QPainter::CompositionMode blendMode)
 Sets the item's composition blending mode. More...
 
int transparency () const
 Returns the item's transparency. More...
 
void setTransparency (const int transparency)
 Sets the item's transparency. More...
 
bool effectsEnabled () const
 Returns whether effects (eg blend modes) are enabled for the item. More...
 
void setEffectsEnabled (const bool effectsEnabled)
 Sets whether effects (eg blend modes) are enabled for the item. More...
 
virtual void addItem (QgsComposerItem *item)
 Composite operations for item groups do nothing per default. More...
 
virtual void removeItems ()
 
virtual void beginItemCommand (const QString &text)
 
void beginCommand (const QString &commandText, QgsComposerMergeCommand::Context c=QgsComposerMergeCommand::Unknown)
 Starts new composer undo command. More...
 
virtual void endItemCommand ()
 
void endCommand ()
 Finish current command and push it onto the undo stack. More...
 
void cancelCommand ()
 
Q_DECL_DEPRECATED void drawText (QPainter *p, double x, double y, const QString &text, const QFont &font, const QColor &c=QColor()) const
 Draws Text. More...
 
Q_DECL_DEPRECATED void drawText (QPainter *p, const QRectF &rect, const QString &text, const QFont &font, Qt::AlignmentFlag halignment=Qt::AlignLeft, Qt::AlignmentFlag valignment=Qt::AlignTop, int flags=Qt::TextWordWrap) const
 Like the above, but with a rectangle for multiline text. More...
 
Q_DECL_DEPRECATED double textWidthMillimeters (const QFont &font, const QString &text) const
 Returns the font width in millimeters (considers upscaling and downscaling with FONT_WORKAROUND_SCALE. More...
 
Q_DECL_DEPRECATED double fontHeightCharacterMM (const QFont &font, const QChar &c) const
 Returns the font height of a character in millimeters. More...
 
Q_DECL_DEPRECATED double fontAscentMillimeters (const QFont &font) const
 Returns the font ascent in Millimeters (considers upscaling and downscaling with FONT_WORKAROUND_SCALE. More...
 
Q_DECL_DEPRECATED double fontDescentMillimeters (const QFont &font) const
 Returns the font descent in Millimeters (considers upscaling and downscaling with FONT_WORKAROUND_SCALE. More...
 
Q_DECL_DEPRECATED double fontHeightMillimeters (const QFont &font) const
 Returns the font height in Millimeters (considers upscaling and downscaling with FONT_WORKAROUND_SCALE. More...
 
Q_DECL_DEPRECATED double pixelFontSize (double pointSize) const
 Calculates font size in mm from a font point size. More...
 
Q_DECL_DEPRECATED QFont scaledFontPixelSize (const QFont &font) const
 Returns a font where size is in pixel and font size is upscaled with FONT_WORKAROUND_SCALE. More...
 
void setPositionLock (const bool lock)
 Locks / unlocks the item position for mouse drags. More...
 
bool positionLock () const
 Returns whether position lock for mouse drags is enabled returns true if item is locked for mouse movement and resizing. More...
 
double itemRotation (const QgsComposerObject::PropertyValueType valueType=QgsComposerObject::EvaluatedValue) const
 Returns the current rotation for the composer item. More...
 
Q_DECL_DEPRECATED double rotation () const
 Returns the rotation for the composer item. More...
 
QString id () const
 Get item's id (which is not necessarly unique) More...
 
virtual void setId (const QString &id)
 Set item's id (which is not necessarly unique) More...
 
QString uuid () const
 Get item identification name. More...
 
virtual void setVisibility (const bool visible)
 Sets visibility for item. More...
 
bool excludeFromExports (const QgsComposerObject::PropertyValueType valueType=QgsComposerObject::EvaluatedValue)
 Returns whether the item should be excluded from composer exports and prints. More...
 
virtual void setExcludeFromExports (const bool exclude)
 Sets whether the item should be excluded from composer exports and prints. More...
 
bool isGroupMember () const
 Returns whether this item is part of a group. More...
 
void setIsGroupMember (const bool isGroupMember)
 Sets whether this item is part of a group. More...
 
virtual void setCurrentExportLayer (const int layerIdx=-1)
 Sets the current layer to draw for exporting. More...
 
- Public Member Functions inherited from QgsComposerObject
 QgsComposerObject (QgsComposition *composition)
 Constructor. More...
 
virtual ~QgsComposerObject ()
 
const QgsCompositioncomposition () const
 Returns the composition the item is attached to. More...
 
QgsCompositioncomposition ()
 
QgsDataDefineddataDefinedProperty (const DataDefinedProperty property) const
 Returns a reference to the data defined settings for one of the item's data defined properties. More...
 
void setDataDefinedProperty (const DataDefinedProperty property, const bool active, const bool useExpression, const QString &expression, const QString &field)
 Sets parameters for a data defined property for the item. More...
 

Friends

class QgsComposerMapOverview
 

Additional Inherited Members

- Protected Member Functions inherited from QgsComposerItem
virtual void drawSelectionBoxes (QPainter *p)
 Draws additional graphics on selected items. More...
 
virtual void drawFrame (QPainter *p)
 Draw black frame around item. More...
 
virtual void drawBackground (QPainter *p)
 Draw background. More...
 
Q_DECL_DEPRECATED void drawArrowHead (QPainter *p, double x, double y, double angle, double arrowHeadWidth) const
 Draws arrowhead. More...
 
Q_DECL_DEPRECATED double angle (const QPointF &p1, const QPointF &p2) const
 Returns angle of the line from p1 to p2 (clockwise, starting at N) More...
 
double rectHandlerBorderTolerance () const
 Returns the current (zoom level dependent) tolerance to decide if mouse position is close enough to the item border for resizing. More...
 
Q_DECL_DEPRECATED double lockSymbolSize () const
 Returns the size of the lock symbol depending on the composer zoom level and the item size. More...
 
double horizontalViewScaleFactor () const
 Returns the zoom factor of the graphics view. More...
 
Q_DECL_DEPRECATED bool imageSizeConsideringRotation (double &width, double &height, double rotation) const
 Calculates width and hight of the picture (in mm) such that it fits into the item frame with the given rotation. More...
 
Q_DECL_DEPRECATED bool imageSizeConsideringRotation (double &width, double &height) const
 Calculates width and hight of the picture (in mm) such that it fits into the item frame with the given rotation. More...
 
Q_DECL_DEPRECATED QRectF largestRotatedRectWithinBounds (QRectF originalRect, QRectF boundsRect, double rotation) const
 Calculates the largest scaled version of originalRect which fits within boundsRect, when it is rotated by a specified amount. More...
 
Q_DECL_DEPRECATED bool cornerPointOnRotatedAndScaledRect (double &x, double &y, double width, double height, double rotation) const
 Calculates corner point after rotation and scaling. More...
 
Q_DECL_DEPRECATED bool cornerPointOnRotatedAndScaledRect (double &x, double &y, double width, double height) const
 Calculates corner point after rotation and scaling. More...
 
Q_DECL_DEPRECATED void sizeChangedByRotation (double &width, double &height, double rotation)
 Calculates width / height of the bounding box of a rotated rectangle. More...
 
Q_DECL_DEPRECATED void sizeChangedByRotation (double &width, double &height)
 Calculates width / height of the bounding box of a rotated rectangle. More...
 
Q_DECL_DEPRECATED void rotate (double angle, double &x, double &y) const
 Rotates a point / vector. More...
 
QGraphicsLineItem * hAlignSnapItem ()
 Return horizontal align snap item. More...
 
void deleteHAlignSnapItem ()
 
QGraphicsLineItem * vAlignSnapItem ()
 Return vertical align snap item. More...
 
void deleteVAlignSnapItem ()
 
void deleteAlignItems ()
 
QRectF evalItemRect (const QRectF &newRect, const bool resizeOnly=false)
 Evaluates an item's bounding rect to consider data defined position and size of item and reference point. More...
 
bool shouldDrawItem () const
 Returns whether the item should be drawn in the current context. More...
 
- Protected Member Functions inherited from QgsComposerObject
bool dataDefinedEvaluate (const QgsComposerObject::DataDefinedProperty property, QVariant &expressionValue)
 Evaluate a data defined property and return the calculated value. More...
 
- Protected Attributes inherited from QgsComposerItem
bool mRemovedFromComposition
 True if item has been removed from the composition. More...
 
QgsComposerItem::MouseMoveAction mCurrentMouseMoveAction
 
QPointF mMouseMoveStartPos
 Start point of the last mouse move action (in scene coordinates) More...
 
QPointF mLastMouseEventPos
 Position of the last mouse move event (in scene coordinates) More...
 
QGraphicsRectItem * mBoundingResizeRectangle
 Rectangle used during move and resize actions. More...
 
QGraphicsLineItem * mHAlignSnapItem
 
QGraphicsLineItem * mVAlignSnapItem
 
bool mFrame
 True if item fram needs to be painted. More...
 
bool mBackground
 True if item background needs to be painted. More...
 
QColor mBackgroundColor
 Background color. More...
 
Qt::PenJoinStyle mFrameJoinStyle
 Frame join style. More...
 
bool mItemPositionLocked
 True if item position and size cannot be changed with mouse move. More...
 
double mLastValidViewScaleFactor
 Backup to restore item appearance if no view scale factor is available. More...
 
double mItemRotation
 Item rotation in degrees, clockwise. More...
 
double mEvaluatedItemRotation
 Temporary evaluated item rotation in degrees, clockwise. More...
 
QPainter::CompositionMode mBlendMode
 Composition blend mode for item. More...
 
bool mEffectsEnabled
 
QgsComposerEffectmEffect
 
int mTransparency
 Item transparency. More...
 
bool mExcludeFromExports
 Whether item should be excluded in exports. More...
 
bool mEvaluatedExcludeFromExports
 Temporary evaluated item exclusion. More...
 
ItemPositionMode mLastUsedPositionMode
 The item's position mode. More...
 
bool mIsGroupMember
 Whether or not this item is part of a group. More...
 
int mCurrentExportLayer
 The layer that needs to be exported. More...
 
- Protected Attributes inherited from QgsComposerObject
QgsCompositionmComposition
 
QMap
< QgsComposerObject::DataDefinedProperty,
QString > 
mDataDefinedNames
 Map of data defined properties for the item to string name to use when exporting item to xml. More...
 

Detailed Description

Object representing map window.

Member Enumeration Documentation

Scaling modes used for the serial rendering (atlas)

Enumerator
Fixed 
Predefined 
Auto 

Enum for different frame borders.

Enumerator
Left 
Right 
Bottom 
Top 
Enumerator
Horizontal 
Vertical 
HorizontalAndVertical 
BoundaryDirection 
Enumerator
Decimal 
DegreeMinute 
DegreeMinuteSecond 
DecimalWithSuffix 
DegreeMinuteNoSuffix 
DegreeMinutePadded 
DegreeMinuteSecondNoSuffix 
DegreeMinuteSecondPadded 
Enumerator
InsideMapFrame 
OutsideMapFrame 
Disabled 
Enumerator
NoGridFrame 
Zebra 
InteriorTicks 
ExteriorTicks 
InteriorExteriorTicks 
LineBorder 
Enumerator
Solid 
Cross 
Markers 
FrameAnnotationsOnly 

Preview style.

Enumerator
Cache 
Render 
Rectangle 

Constructor & Destructor Documentation

QgsComposerMap::QgsComposerMap ( QgsComposition composition,
int  x,
int  y,
int  width,
int  height 
)

Constructor.

QgsComposerMap::QgsComposerMap ( QgsComposition composition)

Constructor.

Settings are read from project.

QgsComposerMap::~QgsComposerMap ( )
virtual

Member Function Documentation

QColor QgsComposerMap::annotationFontColor ( ) const

Get font color for grid annotations.

Note
: this function was added in version 2.0
Deprecated:
use grid()->annotationFontColor() or grids() instead
double QgsComposerMap::annotationFrameDistance ( ) const
void QgsComposerMap::assignFreeId ( )

Sets mId to a number not yet used in the composition.

mId is kept if it is not in use. Usually, this function is called before adding the composer map to the composition

bool QgsComposerMap::atlasDriven ( ) const
inline

Returns whether the map extent is set to follow the current atlas feature.

Returns
true if map will follow the current atlas feature.
See also
setAtlasDriven
atlasScalingMode
bool QgsComposerMap::atlasFixedScale ( ) const

Returns true if the map uses a fixed scale when in atlas mode.

Deprecated:
since 2.4 Use atlasScalingMode() instead
double QgsComposerMap::atlasMargin ( const QgsComposerObject::PropertyValueType  valueType = QgsComposerObject::EvaluatedValue)

Returns the margin size (percentage) used when the map is in atlas mode.

Parameters
valueTypecontrols whether the returned value is the user specified atlas margin, or the current evaluated atlas margin (which may be affected by data driven atlas margin settings).
Returns
margin size in percentage to leave around the atlas feature's extent
Note
this is only used if atlasScalingMode() is Auto.
See also
atlasScalingMode
setAtlasMargin
AtlasScalingMode QgsComposerMap::atlasScalingMode ( ) const
inline

Returns the current atlas scaling mode.

This controls how the map's extents are calculated for the current atlas feature when an atlas composition is enabled.

Returns
the current scaling mode
Note
this parameter is only used if atlasDriven() is true
See also
setAtlasScalingMode
atlasDriven
QRectF QgsComposerMap::boundingRect ( ) const

In case of annotations, the bounding rectangle can be larger than the map item rectangle.

Note
this function was added in version 1.4
void QgsComposerMap::cache ( void  )

Create cache image.

void QgsComposerMap::connectMapOverviewSignals ( )
bool QgsComposerMap::containsAdvancedEffects ( ) const

True if composer map contains layers with blend modes or flattened layers for vectors.

bool QgsComposerMap::containsWMSLayer ( ) const

True if composer map renders a WMS layer.

bool QgsComposerMap::cornerPointOnRotatedAndScaledRect ( double &  x,
double &  y,
double  width,
double  height 
) const

Calculates corner point after rotation and scaling.

Deprecated:
Use QgsComposerItem::cornerPointOnRotatedAndScaledRect( double& x, double& y, double width, double height, double rotation ) instead
double QgsComposerMap::crossLength ( )
QgsRectangle * QgsComposerMap::currentMapExtent ( )

Returns a pointer to the current map extent, which is either the original user specified extent or the temporary atlas-driven feature extent depending on the current atlas state of the composition.

Both a const and non-const version are included.

Returns
pointer to current map extent
See also
visibleExtentPolygon
const QgsRectangle * QgsComposerMap::currentMapExtent ( ) const
QString QgsComposerMap::displayName ( ) const
virtual

Get item display name.

This is the item's id if set, and if not, a user-friendly string identifying item type.

Returns
display name for item
See also
id
setId
Note
added in version 2.5

Reimplemented from QgsComposerItem.

void QgsComposerMap::draw ( QPainter *  painter,
const QgsRectangle extent,
const QSizeF &  size,
double  dpi,
double *  forceWidthScale = 0 
)

Draw to paint device.

Parameters
painterpainter
extentmap extent
sizesize in scene coordinates
dpiscene dpi
forceWidthScaleforce wysiwyg line widths / marker sizes
bool QgsComposerMap::drawCanvasItems ( ) const
inline
QgsRectangle QgsComposerMap::extent ( ) const
inline
void QgsComposerMap::extentChanged ( )
signal
QgsComposerMapGrid * QgsComposerMap::grid ( )

Returns the map item's first grid.

This is a convenience function.

Returns
pointer to first grid for map item
See also
grids()
Note
introduced in QGIS 2.5
QgsComposerMap::GridAnnotationDirection QgsComposerMap::gridAnnotationDirection ( QgsComposerMap::Border  border) const
Deprecated:
use grid()->annotationDirection() or grids() instead
QFont QgsComposerMap::gridAnnotationFont ( ) const
Deprecated:
use grid()->annotationFont() or grids() instead
QgsComposerMap::GridAnnotationFormat QgsComposerMap::gridAnnotationFormat ( ) const
Deprecated:
use grid()->annotationFormat() or grids() instead
QgsComposerMap::GridAnnotationPosition QgsComposerMap::gridAnnotationPosition ( QgsComposerMap::Border  border) const
Deprecated:
use grid()->annotationPosition() or grids() instead
int QgsComposerMap::gridAnnotationPrecision ( ) const
Deprecated:
use grid()->annotationPrecision() or grids() instead
QPainter::CompositionMode QgsComposerMap::gridBlendMode ( ) const

Returns the grid's blending mode.

Deprecated:
use grid()->blendMode() or grids() instead
bool QgsComposerMap::gridEnabled ( ) const
Deprecated:
use grid()->enabled() or grids() instead
QColor QgsComposerMap::gridFrameFillColor1 ( ) const

Get first fill color for grid zebra frame.

Note
: this function was added in version 2.1
Deprecated:
use grid()->frameFillColor1() or grids() instead
QColor QgsComposerMap::gridFrameFillColor2 ( ) const

Get second fill color for grid zebra frame.

Note
: this function was added in version 2.1
Deprecated:
use grid()->frameFillColor2() or grids() instead
QColor QgsComposerMap::gridFramePenColor ( ) const

Get pen color for grid frame.

Note
: this function was added in version 2.1
Deprecated:
use grid()->framePenColor() or grids() instead
double QgsComposerMap::gridFramePenSize ( ) const
Deprecated:
use grid()->framePenSize() or grids() instead
QgsComposerMap::GridFrameStyle QgsComposerMap::gridFrameStyle ( ) const
Deprecated:
use grid()->frameStyle() or grids() instead
double QgsComposerMap::gridFrameWidth ( ) const
Deprecated:
use grid()->frameWidth() or grids() instead
double QgsComposerMap::gridIntervalX ( ) const
Deprecated:
use grid()->intervalX() or grids() instead
double QgsComposerMap::gridIntervalY ( ) const
Deprecated:
use grid()->intervalY() or grids() instead
QgsLineSymbolV2 * QgsComposerMap::gridLineSymbol ( )
Deprecated:
use grid()->lineSymbol() or grids() instead
double QgsComposerMap::gridOffsetX ( ) const
Deprecated:
use grid()->offsetX() or grids() instead
double QgsComposerMap::gridOffsetY ( ) const
Deprecated:
use grid()->offsetY() or grids() instead
QPen QgsComposerMap::gridPen ( ) const
Deprecated:
use grid()->pen() or grids() instead
QgsComposerMapGridStack* QgsComposerMap::grids ( )
inline

Returns the map item's grid stack, which is used to control how grids are drawn over the map's contents.

Returns
pointer to grid stack
See also
grid()
Note
introduced in QGIS 2.5
QgsComposerMap::GridStyle QgsComposerMap::gridStyle ( ) const
Deprecated:
use grid()->style() or grids() instead
int QgsComposerMap::id ( ) const
inline

Get identification number.

bool QgsComposerMap::imageSizeConsideringRotation ( double &  width,
double &  height 
) const

Calculates width and hight of the picture (in mm) such that it fits into the item frame with the given rotation.

Deprecated:
Use bool QgsComposerItem::imageSizeConsideringRotation( double& width, double& height, double rotation ) instead
bool QgsComposerMap::isDrawing ( ) const
inline

True if a draw is already in progress.

bool QgsComposerMap::keepLayerSet ( ) const
inline

Getter for flag that determines if the stored layer set should be used or the current layer set of the qgis mapcanvas.

Note
this function was added in version 1.2
QStringList QgsComposerMap::layerSet ( ) const
inline

Getter for stored layer set that is used if mKeepLayerSet is true.

Note
this function was added in version 1.2
const QgsMapRenderer * QgsComposerMap::mapRenderer ( ) const
Deprecated:
since 2.4 - use mapSettings() - may return 0 if not initialized with QgsMapRenderer
double QgsComposerMap::mapRotation ( QgsComposerObject::PropertyValueType  valueType = QgsComposerObject::EvaluatedValue) const

Returns the rotation used for drawing the map within the composer item.

Returns
rotation for map
Parameters
valueTypecontrols whether the returned value is the user specified rotation, or the current evaluated rotation (which may be affected by data driven rotation settings).
void QgsComposerMap::mapRotationChanged ( double  newRotation)
signal

Is emitted on rotation change to notify north arrow pictures.

QgsMapSettings QgsComposerMap::mapSettings ( const QgsRectangle extent,
const QSizeF &  size,
int  dpi 
) const

Return map settings that would be used for drawing of the map.

Note
added in 2.6
QPointF QgsComposerMap::mapToItemCoords ( const QPointF &  mapCoords) const

Transforms map coordinates to item coordinates (considering rotation and move offset)

double QgsComposerMap::mapUnitsToMM ( ) const

Returns the conversion factor map units -> mm.

void QgsComposerMap::moveContent ( double  dx,
double  dy 
)
virtual

Move content of map.

Parameters
dxmove in x-direction (item and canvas coordinates)
dymove in y-direction (item and canvas coordinates)

Reimplemented from QgsComposerItem.

int QgsComposerMap::numberExportLayers ( ) const
virtual

Get the number of layers that this item requires for exporting as layers.

Returns
0 if this item is to be placed on the same layer as the previous item, 1 if it should be placed on its own layer, and >1 if it requires multiple export layers
Note
this method was added in version 2.4

Reimplemented from QgsComposerItem.

QgsComposerMapOverview * QgsComposerMap::overview ( )

Returns the map item's first overview.

This is a convenience function.

Returns
pointer to first overview for map item
See also
overviews()
Note
introduced in QGIS 2.5
QPainter::CompositionMode QgsComposerMap::overviewBlendMode ( ) const

Returns the overview's blending mode.

Deprecated:
use overview()->blendMode() or overviews() instead
bool QgsComposerMap::overviewCentered ( ) const

Returns true if the extent is forced to center on the overview.

Deprecated:
use overview()->centered() or overviews() instead
void QgsComposerMap::overviewExtentChanged ( )
inlineslot
int QgsComposerMap::overviewFrameMapId ( ) const

Returns id of overview frame (or -1 if no overfiew frame)

Note
: this function was added in version 1.9
Deprecated:
use overview()->frameMapId() or overviews() instead
QgsFillSymbolV2 * QgsComposerMap::overviewFrameMapSymbol ( )
Deprecated:
use overview()->frameSymbol() or overviews() instead
bool QgsComposerMap::overviewInverted ( ) const

Returns true if the overview frame is inverted.

Deprecated:
use overview()->inverted() or overviews() instead
QgsComposerMapOverviewStack* QgsComposerMap::overviews ( )
inline

Returns the map item's overview stack, which is used to control how overviews are drawn over the map's contents.

Returns
pointer to overview stack
See also
overview()
Note
introduced in QGIS 2.5
void QgsComposerMap::paint ( QPainter *  painter,
const QStyleOptionGraphicsItem *  itemStyle,
QWidget *  pWidget 
)

Reimplementation of QCanvasItem::paint - draw on canvas.

void QgsComposerMap::preparedForAtlas ( )
signal

Is emitted when the map has been prepared for atlas rendering, just before actual rendering.

PreviewMode QgsComposerMap::previewMode ( ) const
inline
bool QgsComposerMap::readXML ( const QDomElement &  itemElem,
const QDomDocument &  doc 
)
virtual

sets state from Dom document

Parameters
itemElemis Dom node corresponding to 'ComposerMap' tag
docis Dom document

Reimplemented from QgsComposerObject.

void QgsComposerMap::refreshDataDefinedProperty ( const QgsComposerObject::DataDefinedProperty  property = QgsComposerObject::AllProperties)
virtual

Refreshes a data defined property for the item by reevaluating the property's value and redrawing the item with this new value.

Parameters
propertydata defined property to refresh. If property is set to QgsComposerItem::AllProperties then all data defined properties for the item will be refreshed.
Note
this method was added in version 2.5

Reimplemented from QgsComposerItem.

void QgsComposerMap::renderModeUpdateCachedImage ( )
slot

Call updateCachedImage if item is in render mode.

void QgsComposerMap::requestedExtent ( QgsRectangle extent) const

Calculates the extent to request and the yShift of the top-left point in case of rotation.

Note
added in 2.6
void QgsComposerMap::resize ( double  dx,
double  dy 
)

resizes an item in x- and y direction (canvas coordinates)

Q_DECL_DEPRECATED double QgsComposerMap::rotation ( ) const
inline

Returns the rotation used for drawing the map within the composer item.

Deprecated:
Use mapRotation() instead
double QgsComposerMap::scale ( ) const

Scale.

void QgsComposerMap::setAnnotationFontColor ( const QColor &  c)

Sets font color for grid annotations.

Note
this function was added in version 2.0
Deprecated:
use grid()->setAnnotationFontColor() or grids() instead
void QgsComposerMap::setAnnotationFrameDistance ( double  d)

Sets distance between map frame and annotations.

Note
this function was added in version 1.4
Deprecated:
use grid()->setAnnotationFrameDistance() or grids() instead
void QgsComposerMap::setAtlasDriven ( bool  enabled)

Sets whether the map extent will follow the current atlas feature.

Parameters
enabledset to true if the map extents should be set by the current atlas feature.
See also
atlasDriven
setAtlasScalingMode
void QgsComposerMap::setAtlasFixedScale ( bool  fixed)

Set to true if the map should use a fixed scale when in atlas mode.

Deprecated:
since 2.4 Use setAtlasScalingMode() instead
void QgsComposerMap::setAtlasMargin ( double  margin)
inline

Sets the margin size (percentage) used when the map is in atlas mode.

Parameters
marginsize in percentage to leave around the atlas feature's extent
Note
this is only used if atlasScalingMode() is Auto.
See also
atlasScalingMode
atlasMargin
void QgsComposerMap::setAtlasScalingMode ( AtlasScalingMode  mode)
inline

Sets the current atlas scaling mode.

This controls how the map's extents are calculated for the current atlas feature when an atlas composition is enabled.

Parameters
modeatlas scaling mode to set
Note
this parameter is only used if atlasDriven() is true
See also
atlasScalingMode
atlasDriven
void QgsComposerMap::setCacheUpdated ( bool  u = false)
void QgsComposerMap::setCrossLength ( double  l)

Sets length of the cross segments (if grid style is cross)

Note
this function was added in version 1.4
Deprecated:
use grid()->setCrossLength() or grids() instead
void QgsComposerMap::setDrawCanvasItems ( bool  b)
inline
void QgsComposerMap::setFrameOutlineWidth ( const double  outlineWidth)
virtual

Sets frame outline width.

Parameters
outlineWidthnew width for outline frame
Note
introduced in 2.2
See also
frameOutlineWidth
setFrameEnabled
setFrameJoinStyle
setFrameOutlineColor

Reimplemented from QgsComposerItem.

void QgsComposerMap::setGridAnnotationDirection ( GridAnnotationDirection  d,
QgsComposerMap::Border  border 
)
Deprecated:
use grid()->setAnnotationDirection() or grids() instead
void QgsComposerMap::setGridAnnotationFont ( const QFont &  f)

Sets font for grid annotations.

Note
this function was added in version 1.4
Deprecated:
use grid()->setAnnotationFont() or grids() instead
void QgsComposerMap::setGridAnnotationFormat ( QgsComposerMap::GridAnnotationFormat  f)
Deprecated:
use grid()->setAnnotationFormat() or grids() instead
void QgsComposerMap::setGridAnnotationPosition ( QgsComposerMap::GridAnnotationPosition  p,
QgsComposerMap::Border  border 
)
Deprecated:
use grid()->setAnnotationPosition() or grids() instead
void QgsComposerMap::setGridAnnotationPrecision ( int  p)

Sets coordinate precision for grid annotations.

Note
this function was added in version 1.4
Deprecated:
use grid()->setAnnotationPrecision or grids() instead
void QgsComposerMap::setGridBlendMode ( QPainter::CompositionMode  blendMode)

Sets the grid's blending mode.

Deprecated:
use grid()->setBlendMode() or grids() instead
void QgsComposerMap::setGridEnabled ( bool  enabled)

Enables a coordinate grid that is shown on top of this composermap.

Note
this function was added in version 1.4
Deprecated:
use grid()->setEnabled() or grids() instead
void QgsComposerMap::setGridFrameFillColor1 ( const QColor &  c)

Sets first fill color for grid zebra frame.

Note
: this function was added in version 2.1
Deprecated:
use grid()->setFrameFillColor1() or grids() instead
void QgsComposerMap::setGridFrameFillColor2 ( const QColor &  c)

Sets second fill color for grid zebra frame.

Note
: this function was added in version 2.1
Deprecated:
use grid()->setFrameFillColor2() or grids() instead
void QgsComposerMap::setGridFramePenColor ( const QColor &  c)

Sets pen color for grid frame.

Note
: this function was added in version 2.1
Deprecated:
use grid()->setFramePenColor() or grids() instead
void QgsComposerMap::setGridFramePenSize ( double  w)

Set grid frame pen thickness.

Note
: this function was added in version 2.1
Deprecated:
use grid()->setFramePenSize() or grids() instead
void QgsComposerMap::setGridFrameStyle ( GridFrameStyle  style)

Set grid frame style (NoGridFrame or Zebra)

Note
: this function was added in version 1.9
Deprecated:
use grid()->setFrameStyle() or grids() instead
void QgsComposerMap::setGridFrameWidth ( double  w)

Set grid frame width.

Note
: this function was added in version 1.9
Deprecated:
use grid()->setFrameWidth() or grids() instead
void QgsComposerMap::setGridIntervalX ( double  interval)

Sets coordinate interval in x-direction for composergrid.

Note
this function was added in version 1.4
Deprecated:
use grid()->setIntervalX() or grids() instead
void QgsComposerMap::setGridIntervalY ( double  interval)

Sets coordinate interval in y-direction for composergrid.

Note
this function was added in version 1.4
Deprecated:
use grid()->setIntervalY() or grids() instead
void QgsComposerMap::setGridLineSymbol ( QgsLineSymbolV2 symbol)
Deprecated:
use grid()->setLineSymbol() or grids() instead
void QgsComposerMap::setGridOffsetX ( double  offset)

Sets x-coordinate offset for composer grid.

Note
this function was added in version 1.4
Deprecated:
use grid()->setOffsetX() or grids() instead
void QgsComposerMap::setGridOffsetY ( double  offset)

Sets y-coordinate offset for composer grid.

Note
this function was added in version 1.4
Deprecated:
use grid()->setOffsetY() or grids() instead
void QgsComposerMap::setGridPen ( const QPen &  p)

Sets the pen to draw composer grid.

Note
this function was added in version 1.4
Deprecated:
use grid()->setPenWidth(), grid()->setPenColor() or grids() instead
void QgsComposerMap::setGridPenColor ( const QColor &  c)

Sets the color of the grid pen.

Note
this function was added in version 1.4
Deprecated:
use grid()->setPenColor() or grids() instead
void QgsComposerMap::setGridPenWidth ( double  w)

Sets width of grid pen.

Note
this function was added in version 1.4
Deprecated:
use grid()->setPenWidth() or grids() instead
void QgsComposerMap::setGridStyle ( GridStyle  style)

Sets coordinate grid style to solid or cross.

Note
this function was added in version 1.4
Deprecated:
use grid()->setStyle() or grids() instead
void QgsComposerMap::setKeepLayerSet ( bool  enabled)
inline

Setter for flag that determines if the stored layer set should be used or the current layer set of the qgis mapcanvas.

Note
this function was added in version 1.2
void QgsComposerMap::setLayerSet ( const QStringList &  layerSet)
inline

Setter for stored layer set that is used if mKeepLayerSet is true.

Note
this function was added in version 1.2
void QgsComposerMap::setMapCanvas ( QGraphicsView *  canvas)
inline

Sets canvas pointer (necessary to query and draw map canvas items)

void QgsComposerMap::setMapRotation ( double  r)

Sets rotation for the map - this does not affect the composer item shape, only the way the map is drawn within the item.

Note
this function was added in version 2.1
void QgsComposerMap::setNewAtlasFeatureExtent ( const QgsRectangle extent)

Sets new Extent for the current atlas preview and changes width, height (and implicitely also scale).

Atlas preview extents are only temporary, and are regenerated whenever the atlas feature changes

void QgsComposerMap::setNewExtent ( const QgsRectangle extent)

Sets new extent for the map.

This method may change the width or height of the map item to ensure that the extent exactly matches the specified extent, with no overlap or margin. This method implicitly alters the map scale.

Parameters
extentnew extent for the map
See also
zoomToExtent
void QgsComposerMap::setNewScale ( double  scaleDenominator,
bool  forceUpdate = true 
)

Sets new scale and changes only mExtent.

void QgsComposerMap::setOffset ( double  xOffset,
double  yOffset 
)

Sets offset values to shift image (useful for live updates when moving item content)

void QgsComposerMap::setOverviewBlendMode ( QPainter::CompositionMode  blendMode)

Sets the overview's blending mode.

Deprecated:
use overview()->setBlendMode() or overviews() instead
void QgsComposerMap::setOverviewCentered ( bool  centered)

Set the overview's centering mode.

Deprecated:
use overview()->setCentered() or overviews() instead
void QgsComposerMap::setOverviewFrameMap ( int  mapId)

Sets overview frame map.

-1 disables the overview frame

Note
: this function was added in version 1.9
Deprecated:
use overview()->setFrameMap() or overviews() instead
void QgsComposerMap::setOverviewFrameMapSymbol ( QgsFillSymbolV2 symbol)
Deprecated:
use overview()->setFrameSymbol() or overviews() instead
void QgsComposerMap::setOverviewInverted ( bool  inverted)

Sets the overview's inversion mode.

Deprecated:
use overview()->setInverted() or overviews() instead
void QgsComposerMap::setPreviewMode ( PreviewMode  m)
void QgsComposerMap::setRotation ( double  r)
virtual

Sets rotation for the map - this does not affect the composer item shape, only the way the map is drawn within the item.

Deprecated:
Use setMapRotation( double rotation ) instead

Reimplemented from QgsComposerItem.

void QgsComposerMap::setSceneRect ( const QRectF &  rectangle)
virtual

Sets new scene rectangle bounds and recalculates hight and extent.

Reimplemented from QgsComposerItem.

void QgsComposerMap::setShowGridAnnotation ( bool  show)

Sets flag if grid annotation should be shown.

Note
this function was added in version 1.4
Deprecated:
use grid()->setAnnotationEnabled() or grids() instead
void QgsComposerMap::setUpdatesEnabled ( bool  enabled)
inline

Sets whether updates to the composer map are enabled.

bool QgsComposerMap::showGridAnnotation ( ) const
Deprecated:
use grid()->annotationEnabled() or grids() instead
void QgsComposerMap::sizeChangedByRotation ( double &  width,
double &  height 
)

Calculates width / height of the bounding box of a rotated rectangle.

Deprecated:
Use QgsComposerItem::sizeChangedByRotation( double& width, double& height, double rotation ) instead
void QgsComposerMap::storeCurrentLayerSet ( )

Stores the current layer set of the qgis mapcanvas in mLayerSet.

Q_DECL_DEPRECATED void QgsComposerMap::toggleAtlasPreview ( )
inline

Called when atlas preview is toggled, to force map item to update its extent and redraw.

Deprecated:
no longer required
QPolygonF QgsComposerMap::transformedMapPolygon ( ) const

Returns extent that considers rotation and shift with mOffsetX / mOffsetY.

virtual int QgsComposerMap::type ( ) const
inlinevirtual

return correct graphics item type.

Added in v1.7

Reimplemented from QgsComposerItem.

void QgsComposerMap::updateBoundingRect ( )
slot

Updates the bounding rect of this item.

Call this function before doing any changes related to annotation out of the map rectangle

Note
this function was added in version 1.4
void QgsComposerMap::updateCachedImage ( void  )
slot

Called if map canvas has changed.

void QgsComposerMap::updateItem ( )
virtual

Updates item, with the possibility to do custom update for subclasses.

Reimplemented from QgsComposerItem.

bool QgsComposerMap::updatesEnabled ( ) const
inline

Returns whether updates to the composer map are enabled.

QPolygonF QgsComposerMap::visibleExtentPolygon ( ) const

Returns a polygon representing the current visible map extent, considering map extents and rotation.

If the map rotation is 0, the result is the same as currentMapExtent

Returns
polygon with the four corner points representing the visible map extent. The points are clockwise, starting at the top-left point
See also
currentMapExtent
bool QgsComposerMap::writeXML ( QDomElement &  elem,
QDomDocument &  doc 
) const
virtual

stores state in Dom node

Parameters
elemis Dom element corresponding to 'Composer' tag
docDom document

Reimplemented from QgsComposerObject.

void QgsComposerMap::zoomContent ( int  delta,
double  x,
double  y 
)
virtual

Zoom content of map.

Parameters
deltavalue from wheel event that describes direction (positive /negative number)
xx-position of mouse cursor (in item coordinates)
yy-position of mouse cursor (in item coordinates)
Deprecated:
use zoomContent( double, QPointF, ZoomMode ) instead

Reimplemented from QgsComposerItem.

void QgsComposerMap::zoomContent ( const double  factor,
const QPointF  point,
const ZoomMode  mode = QgsComposerItem::Zoom 
)
virtual

Zoom content of item.

Does nothing per default (but implemented in composer map)

Parameters
factorzoom factor, where > 1 results in a zoom in and < 1 results in a zoom out
pointitem point for zoom center
modezoom mode
Note
added in QGIS 2.5

Reimplemented from QgsComposerItem.

void QgsComposerMap::zoomToExtent ( const QgsRectangle extent)

Zooms the map so that the specified extent is fully visible within the map item.

This method will not change the width or height of the map, and may result in an overlap or margin from the specified extent. This method implicitly alters the map scale.

Parameters
extentnew extent for the map
See also
setNewExtent
Note
added in QGIS 2.5

Friends And Related Function Documentation

friend class QgsComposerMapOverview
friend

The documentation for this class was generated from the following files: