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/*=========================================================================
Program: Visualization Toolkit
Module: vtkQtStringToImage.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/**
* @class vtkQtStringToImage
* @brief uses Qt to render the supplied text to an image.
*
*
*
*/
#ifndef vtkQtStringToImage_h
#define vtkQtStringToImage_h
#include "vtkRenderingQtModule.h" // For export macro
#include "vtkSmartPointer.h" // For SP ivars
#include "vtkStringToImage.h"
VTK_ABI_NAMESPACE_BEGIN
class vtkQImageToImageSource;
class VTKRENDERINGQT_EXPORT vtkQtStringToImage : public vtkStringToImage
{
public:
vtkTypeMacro(vtkQtStringToImage, vtkStringToImage);
void PrintSelf(ostream& os, vtkIndent indent) override;
static vtkQtStringToImage* New();
///@{
/**
* Given a text property and a string, get the bounding box [xmin, xmax] x
* [ymin, ymax]. Note that this is the bounding box of the area
* where actual pixels will be written, given a text/pen/baseline location
* of (0,0).
* For example, if the string starts with a 'space', or depending on the
* orientation, you can end up with a [-20, -10] x [5, 10] bbox (the math
* to get the real bbox is straightforward).
* Return 1 on success, 0 otherwise.
* You can use IsBoundingBoxValid() to test if the computed bbox
* is valid (it may not if GetBoundingBox() failed or if the string
* was empty).
*/
vtkVector2i GetBounds(vtkTextProperty* property, const vtkStdString& string, int dpi) override;
///@}
///@{
/**
* Given a text property and a string, this function initializes the
* vtkImageData *data and renders it in a vtkImageData. textDims, if provided,
* will be overwritten by the pixel width and height of the rendered string.
*/
int RenderString(vtkTextProperty* property, const vtkStdString& string, int dpi,
vtkImageData* data, int textDims[2] = nullptr) override;
///@}
/**
* Make a deep copy of the supplied utility class.
*/
void DeepCopy(vtkQtStringToImage* utility);
protected:
vtkQtStringToImage();
~vtkQtStringToImage() override;
class Internals;
Internals* Implementation;
vtkSmartPointer<vtkQImageToImageSource> QImageToImage;
private:
vtkQtStringToImage(const vtkQtStringToImage&) = delete;
void operator=(const vtkQtStringToImage&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif // vtkQtStringToImage_h
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