VTK  9.3.0
vtkContextTransform.h
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1// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2// SPDX-License-Identifier: BSD-3-Clause
3
17#ifndef vtkContextTransform_h
18#define vtkContextTransform_h
19
21#include "vtkRenderingContext2DModule.h" // For export macro
22#include "vtkSmartPointer.h" // Needed for SP ivars.
23#include "vtkVector.h" // Needed for ivars.
24
25VTK_ABI_NAMESPACE_BEGIN
26class vtkTransform2D;
27
28class VTKRENDERINGCONTEXT2D_EXPORT vtkContextTransform : public vtkAbstractContextItem
29{
30public:
32 void PrintSelf(ostream& os, vtkIndent indent) override;
33
38
44 void Update() override;
45
49 bool Paint(vtkContext2D* painter) override;
50
54 virtual void Identity();
55
60 virtual void Translate(float dx, float dy);
61
66 virtual void Scale(float dx, float dy);
67
71 virtual void Rotate(float angle);
72
77
81 vtkVector2f MapToParent(const vtkVector2f& point) override;
82
86 vtkVector2f MapFromParent(const vtkVector2f& point) override;
87
89
93 vtkSetMacro(PanMouseButton, int);
94 vtkGetMacro(PanMouseButton, int);
96
98
102 vtkSetMacro(PanModifier, int);
103 vtkGetMacro(PanModifier, int);
105
107
111 vtkSetMacro(SecondaryPanMouseButton, int);
112 vtkGetMacro(SecondaryPanMouseButton, int);
114
116
120 vtkSetMacro(SecondaryPanModifier, int);
121 vtkGetMacro(SecondaryPanModifier, int);
123
125
129 vtkSetMacro(ZoomMouseButton, int);
130 vtkGetMacro(ZoomMouseButton, int);
132
134
138 vtkSetMacro(ZoomModifier, int);
139 vtkGetMacro(ZoomModifier, int);
141
143
147 vtkSetMacro(SecondaryZoomMouseButton, int);
148 vtkGetMacro(SecondaryZoomMouseButton, int);
150
152
156 vtkSetMacro(SecondaryZoomModifier, int);
157 vtkGetMacro(SecondaryZoomModifier, int);
159
161
164 vtkSetMacro(ZoomOnMouseWheel, bool);
165 vtkGetMacro(ZoomOnMouseWheel, bool);
166 vtkBooleanMacro(ZoomOnMouseWheel, bool);
168
170
173 vtkSetMacro(PanYOnMouseWheel, bool);
174 vtkGetMacro(PanYOnMouseWheel, bool);
175 vtkBooleanMacro(PanYOnMouseWheel, bool);
177
181 bool Hit(const vtkContextMouseEvent& mouse) override;
182
186 bool MouseButtonPressEvent(const vtkContextMouseEvent& mouse) override;
187
191 bool MouseMoveEvent(const vtkContextMouseEvent& mouse) override;
192
196 bool MouseWheelEvent(const vtkContextMouseEvent& mouse, int delta) override;
197
198protected:
201
203
212
215
217
218private:
220 void operator=(const vtkContextTransform&) = delete;
221};
222
223VTK_ABI_NAMESPACE_END
224#endif // vtkContextTransform_h
base class for items that are part of a vtkContextScene.
Class for drawing 2D primitives to a graphical context.
data structure to represent mouse events.
all children of this item are transformed by the vtkTransform2D of this item.
static vtkContextTransform * New()
Creates a vtkContextTransform object.
bool MouseWheelEvent(const vtkContextMouseEvent &mouse, int delta) override
Mouse wheel event.
bool Paint(vtkContext2D *painter) override
Paint event for the item, called whenever the item needs to be drawn.
virtual void Identity()
Reset the transform to the identity transformation.
virtual vtkTransform2D * GetTransform()
Access the vtkTransform2D that controls object transformation.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
virtual void Translate(float dx, float dy)
Translate the item by the specified amounts dx and dy in the x and y directions.
bool MouseMoveEvent(const vtkContextMouseEvent &mouse) override
Mouse move event.
bool MouseButtonPressEvent(const vtkContextMouseEvent &mouse) override
Mouse press event.
vtkVector2f MapToParent(const vtkVector2f &point) override
Transforms a point to the parent coordinate system.
bool Hit(const vtkContextMouseEvent &mouse) override
Returns true if the transform is interactive, false otherwise.
~vtkContextTransform() override
void Update() override
Perform any updates to the item that may be necessary before rendering.
vtkVector2f MapFromParent(const vtkVector2f &point) override
Transforms a point from the parent coordinate system.
virtual void Scale(float dx, float dy)
Scale the item by the specified amounts dx and dy in the x and y directions.
vtkSmartPointer< vtkTransform2D > Transform
virtual void Rotate(float angle)
Rotate the item by the specified angle.
a simple class to control print indentation
Definition vtkIndent.h:29
Hold a reference to a vtkObjectBase instance.
describes linear transformations via a 3x3 matrix