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128 lines
3.1 KiB
C++
128 lines
3.1 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkBlockItem.h
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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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/**
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* @class vtkBlockItem
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* @brief a vtkContextItem that draws a block (optional label).
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*
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*
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* This is a vtkContextItem that can be placed into a vtkContextScene. It draws
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* a block of the given dimensions, and reacts to mouse events.
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*/
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#ifndef vtkBlockItem_h
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#define vtkBlockItem_h
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#include "vtkContextItem.h"
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#include "vtkRenderingContext2DModule.h" // For export macro
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#include "vtkStdString.h" // For vtkStdString ivars
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class vtkContext2D;
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class VTKRENDERINGCONTEXT2D_EXPORT vtkBlockItem : public vtkContextItem
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{
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public:
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vtkTypeMacro(vtkBlockItem, vtkContextItem);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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static vtkBlockItem* New();
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/**
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* Paint event for the item.
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*/
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bool Paint(vtkContext2D* painter) override;
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/**
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* Returns true if the supplied x, y coordinate is inside the item.
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*/
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bool Hit(const vtkContextMouseEvent& mouse) override;
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/**
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* Mouse enter event.
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*/
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bool MouseEnterEvent(const vtkContextMouseEvent& mouse) override;
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/**
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* Mouse move event.
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*/
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bool MouseMoveEvent(const vtkContextMouseEvent& mouse) override;
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/**
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* Mouse leave event.
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*/
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bool MouseLeaveEvent(const vtkContextMouseEvent& mouse) override;
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/**
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* Mouse button down event.
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*/
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bool MouseButtonPressEvent(const vtkContextMouseEvent& mouse) override;
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/**
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* Mouse button release event.
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*/
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bool MouseButtonReleaseEvent(const vtkContextMouseEvent& mouse) override;
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/**
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* Set the block label.
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*/
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virtual void SetLabel(const vtkStdString& label);
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/**
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* Get the block label.
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*/
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virtual vtkStdString GetLabel();
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//@{
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/**
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* Set the dimensions of the block, elements 0 and 1 are the x and y
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* coordinate of the bottom corner. Elements 2 and 3 are the width and
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* height.
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* Initial value is (0,0,0,0).
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*/
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vtkSetVector4Macro(Dimensions, float);
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//@}
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//@{
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/**
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* Get the dimensions of the block, elements 0 and 1 are the x and y
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* coordinate of the bottom corner. Elements 2 and 3 are the width and
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* height.
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* Initial value is (0,0,0,0)
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*/
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vtkGetVector4Macro(Dimensions, float);
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//@}
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void SetScalarFunctor(double (*scalarFunction)(double, double));
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protected:
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vtkBlockItem();
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~vtkBlockItem() override;
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float Dimensions[4];
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vtkStdString Label;
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bool MouseOver;
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// Some function pointers to optionally do funky things...
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double (*scalarFunction)(double, double);
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private:
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vtkBlockItem(const vtkBlockItem&) = delete;
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void operator=(const vtkBlockItem&) = delete;
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};
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#endif // vtkBlockItem_h
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