QtiPlot  0.9.8.2
Signals | Public Member Functions | Private Member Functions | Private Attributes
CanvasPicker Class Reference

Handles parts of the user interaction for a Plot by registering itself as an event filter for its QwtPlotCanvas. More...

#include <CanvasPicker.h>

List of all members.

Signals

void modified ()
void showMarkerPopupMenu ()
void showPlotDialog (int)
void viewLineDialog ()

Public Member Functions

 CanvasPicker (Graph *plot)
void disableEditing ()
 Disable editing of d_editing_marker on a TAB-key event.
virtual bool eventFilter (QObject *, QEvent *)
void selectPeak (const QPoint &p)
void selectPoints (int n)

Private Member Functions

void drawLineMarker (const QPoint &, bool endArrow)
Graphplot ()
 Return my parent as a Graph.
bool selectMarker (const QMouseEvent *e)
 Selects and highlights the marker at the given position.

Private Attributes

ArrowMarkerd_editing_marker
 The marker that is currently being edited, or NULL. Editing does explicitly not inlude moving and resizing, which are being handled by SelectionMoveResizer (see Graph::d_markers_selector). Currently, only ArrowMarker provides any other form of editing, but this really should be generalized. See ImageMarker for details.
QPoint endLinePoint
bool pointSelected
QPoint startLinePoint

Detailed Description

Handles parts of the user interaction for a Plot by registering itself as an event filter for its QwtPlotCanvas.


Constructor & Destructor Documentation

CanvasPicker::CanvasPicker ( Graph plot)

References d_editing_marker, and pointSelected.


Member Function Documentation

void CanvasPicker::disableEditing ( )

Disable editing of d_editing_marker on a TAB-key event.

Called by Graph::focusNextPrevChild ()

References d_editing_marker, and ArrowMarker::setEditable().

Referenced by Graph::deselectMarker(), Graph::remove(), and selectMarker().

void CanvasPicker::drawLineMarker ( const QPoint &  point,
bool  endArrow 
)
private
bool CanvasPicker::eventFilter ( QObject *  object,
QEvent *  e 
)
virtual
void CanvasPicker::modified ( )
signal
Graph* CanvasPicker::plot ( )
inlineprivate

Return my parent as a Graph.

Referenced by drawLineMarker(), eventFilter(), and selectMarker().

bool CanvasPicker::selectMarker ( const QMouseEvent *  e)
private

Selects and highlights the marker at the given position.

Returns:
whether a marker was found at pointSelected

References Graph::arrowsList(), d_editing_marker, Graph::deselectMarker(), disableEditing(), ArrowMarker::dist(), plot(), ArrowMarker::setEditable(), and Graph::setSelectedArrow().

Referenced by eventFilter().

void CanvasPicker::selectPeak ( const QPoint &  p)
void CanvasPicker::selectPoints ( int  n)
void CanvasPicker::showMarkerPopupMenu ( )
signal

Referenced by eventFilter().

void CanvasPicker::showPlotDialog ( int  )
signal

Referenced by eventFilter().

void CanvasPicker::viewLineDialog ( )
signal

Referenced by eventFilter().


Member Data Documentation

ArrowMarker* CanvasPicker::d_editing_marker
private

The marker that is currently being edited, or NULL. Editing does explicitly not inlude moving and resizing, which are being handled by SelectionMoveResizer (see Graph::d_markers_selector). Currently, only ArrowMarker provides any other form of editing, but this really should be generalized. See ImageMarker for details.

Referenced by CanvasPicker(), disableEditing(), eventFilter(), and selectMarker().

QPoint CanvasPicker::endLinePoint
private
bool CanvasPicker::pointSelected
private

Referenced by CanvasPicker().

QPoint CanvasPicker::startLinePoint
private

Referenced by drawLineMarker(), and eventFilter().


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