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105 lines
3.2 KiB
105 lines
3.2 KiB
2 years ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkXYPlotWidget.h,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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// .NAME vtkXYPlotWidget - 2D widget for manipulating a XY plot
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// .SECTION Description
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// This class provides support for interactively manipulating the position,
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// size, and orientation of a XY Plot. It listens to Left mouse events and
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// mouse movement. It will change the cursor shape based on its location. If
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// the cursor is over an edge of thea XY plot it will change the cursor shape
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// to a resize edge shape. If the position of a XY plot is moved to be close to
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// the center of one of the four edges of the viewport, then the XY plot will
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// change its orientation to align with that edge. This orientation is sticky
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// in that it will stay that orientation until the position is moved close to
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// another edge.
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// .SECTION See Also
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// vtkInteractorObserver
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#ifndef __vtkXYPlotWidget_h
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#define __vtkXYPlotWidget_h
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#include "vtkInteractorObserver.h"
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class vtkXYPlotActor;
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class VTK_WIDGETS_EXPORT vtkXYPlotWidget : public vtkInteractorObserver
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{
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public:
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static vtkXYPlotWidget *New();
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vtkTypeRevisionMacro(vtkXYPlotWidget,vtkInteractorObserver);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Get the XY plot used by this Widget. One is created automatically.
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virtual void SetXYPlotActor(vtkXYPlotActor *);
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vtkGetObjectMacro(XYPlotActor,vtkXYPlotActor);
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// Description:
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// Methods for turning the interactor observer on and off.
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virtual void SetEnabled(int);
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protected:
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vtkXYPlotWidget();
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~vtkXYPlotWidget();
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// the actor that is used
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vtkXYPlotActor *XYPlotActor;
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//handles the events
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static void ProcessEvents(vtkObject* object,
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unsigned long event,
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void* clientdata,
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void* calldata);
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// ProcessEvents() dispatches to these methods.
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void OnLeftButtonDown();
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void OnLeftButtonUp();
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void OnMouseMove();
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// used to compute relative movements
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float StartPosition[2];
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//BTX - manage the state of the widget
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int State;
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enum WidgetState
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{
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Moving=0,
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AdjustingP1,
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AdjustingP2,
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AdjustingP3,
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AdjustingP4,
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AdjustingE1,
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AdjustingE2,
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AdjustingE3,
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AdjustingE4,
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Inside,
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Outside
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};
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//ETX
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// use to determine what state the mouse is over, edge1 p1, etc.
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// returns a state from the WidgetState enum above
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int ComputeStateBasedOnPosition(int X, int Y, int *pos1, int *pos2);
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// set the cursor to the correct shape based on State argument
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void SetCursor(int State);
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private:
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vtkXYPlotWidget(const vtkXYPlotWidget&); //Not implemented
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void operator=(const vtkXYPlotWidget&); //Not implemented
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};
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#endif
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