kicad/include/gal/cairo/cairo_print.h

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3.2 KiB
C++

/*
* Copyright (C) 2018 CERN
* Copyright (C) 2020 KiCad Developers, see AUTHORS.txt for contributors.
*
* Author: Maciej Suminski <maciej.suminski@cern.ch>
* Author: Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _CAIRO_PRINT_H_
#define _CAIRO_PRINT_H_
#include <gal/cairo/cairo_gal.h>
#include <gal/gal_print.h>
class wxDC;
class wxGCDC;
namespace KIGFX
{
/**
* Provide a Cairo context created from wxPrintDC.
*
* It allows one to prepare printouts using the Cairo library and let wxWidgets handle the rest.
*/
class CAIRO_PRINT_CTX : public PRINT_CONTEXT
{
public:
CAIRO_PRINT_CTX( wxDC* aDC );
~CAIRO_PRINT_CTX();
cairo_t* GetContext() const
{
return m_ctx;
}
cairo_surface_t* GetSurface() const
{
return m_surface;
}
double GetNativeDPI() const override
{
return m_dpi;
}
bool HasNativeLandscapeRotation() const override
{
#if defined(__WXGTK__) && !defined(__WXGTK3__)
return false;
#else
return true;
#endif
}
private:
wxGCDC* m_gcdc;
cairo_t* m_ctx;
cairo_surface_t* m_surface;
#ifdef __WXMSW__
///> DC handle on Windows
void* m_hdc; // the real type is HDC, but do not pull in extra headers
#endif /* __WXMSW__ */
double m_dpi;
};
class CAIRO_PRINT_GAL : public CAIRO_GAL_BASE, public GAL_PRINT
{
public:
CAIRO_PRINT_GAL( GAL_DISPLAY_OPTIONS& aDisplayOptions,
std::unique_ptr<CAIRO_PRINT_CTX> aContext );
void ComputeWorldScreenMatrix() override;
GAL* GetGAL() override
{
return this;
}
PRINT_CONTEXT* GetPrintCtx() const override
{
return m_printCtx.get();
}
/**
* @param aSize is the printing sheet size expressed in inches.
* @param aRotateIfLandscape true if the platform requires 90 degrees rotation in order
* to print in landscape format.
*/
void SetNativePaperSize( const VECTOR2D& aSize, bool aRotateIfLandscape ) override;
/**
* @param aSize is the schematics sheet size expressed in inches.
*/
void SetSheetSize( const VECTOR2D& aSize ) override;
private:
///> Returns true if page orientation is landscape
bool isLandscape() const
{
return m_nativePaperSize.x > m_nativePaperSize.y;
}
///> Printout size
VECTOR2D m_nativePaperSize;
///> Flag indicating whether the platform rotates page automatically or
///> GAL needs to handle it in the transformation matrix
bool m_hasNativeLandscapeRotation;
std::unique_ptr<CAIRO_PRINT_CTX> m_printCtx;
};
} // namespace KIGFX
#endif /* _CAIRO_PRINT_H_ */