mirror of
https://github.com/qgis/QGIS.git
synced 2025-11-04 00:04:25 -05:00
133 lines
4.4 KiB
Plaintext
133 lines
4.4 KiB
Plaintext
/** An annotation item can be either placed either on screen coordinates or on map coordinates.
|
|
It may reference a feature and displays that association with a balloon like appearance*/
|
|
|
|
%ModuleCode
|
|
#include "qgsformannotationitem.h"
|
|
#include "qgshtmlannotationitem.h"
|
|
#include "qgssvgannotationitem.h"
|
|
#include "qgstextannotationitem.h"
|
|
%End
|
|
|
|
class QgsAnnotationItem: QgsMapCanvasItem, QgsAnnotation
|
|
{
|
|
%TypeHeaderCode
|
|
#include <qgsannotationitem.h>
|
|
%End
|
|
|
|
%ConvertToSubClassCode
|
|
if (dynamic_cast<QgsFormAnnotationItem*>(sipCpp) )
|
|
sipType = sipType_QgsFormAnnotationItem;
|
|
else if (dynamic_cast<QgsHtmlAnnotationItem*>(sipCpp) )
|
|
sipType = sipType_QgsHtmlAnnotationItem;
|
|
else if (dynamic_cast<QgsSvgAnnotationItem*>(sipCpp) )
|
|
sipType = sipType_QgsSvgAnnotationItem;
|
|
else if (dynamic_cast<QgsTextAnnotationItem*>(sipCpp) )
|
|
sipType = sipType_QgsTextAnnotationItem;
|
|
else
|
|
sipType = 0;
|
|
%End
|
|
|
|
|
|
public:
|
|
enum MouseMoveAction
|
|
{
|
|
NoAction,
|
|
MoveMapPosition,
|
|
MoveFramePosition,
|
|
ResizeFrameUp,
|
|
ResizeFrameDown,
|
|
ResizeFrameLeft,
|
|
ResizeFrameRight,
|
|
ResizeFrameLeftUp,
|
|
ResizeFrameRightUp,
|
|
ResizeFrameLeftDown,
|
|
ResizeFrameRightDown
|
|
};
|
|
|
|
QgsAnnotationItem( QgsMapCanvas* mapCanvas );
|
|
virtual ~QgsAnnotationItem();
|
|
|
|
void updatePosition();
|
|
|
|
QRectF boundingRect() const;
|
|
|
|
virtual QSizeF minimumFrameSize() const;
|
|
|
|
/** Returns the mouse move behaviour for a given position
|
|
@param pos the position in scene coordinates*/
|
|
QgsAnnotationItem::MouseMoveAction moveActionForPosition( QPointF pos ) const;
|
|
/** Returns suitable cursor shape for mouse move action*/
|
|
Qt::CursorShape cursorShapeForAction( MouseMoveAction moveAction ) const;
|
|
|
|
//setters and getters
|
|
void setMapPositionFixed( bool fixed );
|
|
bool hasFixedMapPosition() const;
|
|
|
|
virtual void setMapPosition( const QgsPoint& pos );
|
|
QgsPoint mapPosition() const;
|
|
|
|
virtual QPointF relativePosition() const;
|
|
|
|
virtual double scaleFactor() const;
|
|
|
|
virtual bool showItem() const;
|
|
|
|
/** Sets the CRS of the map position.
|
|
@param crs the CRS to set */
|
|
virtual void setMapPositionCrs( const QgsCoordinateReferenceSystem& crs );
|
|
/** Returns the CRS of the map position.*/
|
|
QgsCoordinateReferenceSystem mapPositionCrs() const;
|
|
|
|
void setFrameSize( QSizeF size );
|
|
QSizeF frameSize() const;
|
|
|
|
void setOffsetFromReferencePoint( QPointF offset );
|
|
QPointF offsetFromReferencePoint() const;
|
|
|
|
/** Set symbol that is drawn on map position. Takes ownership*/
|
|
void setMarkerSymbol( QgsMarkerSymbol* symbol /Transfer/ );
|
|
const QgsMarkerSymbol* markerSymbol() const;
|
|
|
|
void setFrameBorderWidth( double w );
|
|
double frameBorderWidth() const;
|
|
|
|
void setFrameColor( const QColor& c );
|
|
QColor frameColor() const;
|
|
|
|
void setFrameBackgroundColor( const QColor& c );
|
|
QColor frameBackgroundColor() const;
|
|
|
|
virtual void writeXml( QDomDocument& doc ) const = 0;
|
|
virtual void readXml( const QDomDocument& doc, const QDomElement& itemElem ) = 0;
|
|
|
|
void _writeXml( QDomDocument& doc, QDomElement& itemElem ) const;
|
|
void _readXml( const QDomDocument& doc, const QDomElement& annotationElem );
|
|
|
|
virtual void setItemData( int role, const QVariant& value );
|
|
virtual void paint( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget = nullptr );
|
|
void paint( QPainter* painter );
|
|
|
|
protected:
|
|
void updateBoundingRect();
|
|
/** Check where to attach the balloon connection between frame and map point*/
|
|
void updateBalloon();
|
|
|
|
//! Draws the annotation frame to a destination painter
|
|
void drawFrame( QPainter* p ) const;
|
|
|
|
//! Draws the map position marker symbol to a destination painter
|
|
void drawMarkerSymbol( QPainter* p ) const;
|
|
|
|
//! Draws selection handles around the item
|
|
void drawSelectionBoxes( QPainter* p ) const;
|
|
|
|
/** Returns frame width in painter units*/
|
|
//double scaledFrameWidth( QPainter* p) const;
|
|
/** Gets the frame line (0 is the top line, 1 right, 2 bottom, 3 left)*/
|
|
QLineF segment( int index ) const;
|
|
/** Returns a point on the line from startPoint to directionPoint that is a certain distance away from the starting point*/
|
|
QPointF pointOnLineWithDistance( QPointF startPoint, QPointF directionPoint, double distance ) const;
|
|
/** Returns the symbol size scaled in (mapcanvas) pixels. Used for the counding rect calculation*/
|
|
double scaledSymbolSize() const;
|
|
};
|