cairo_print.h

Go to the documentation of this file.

/*
 * Copyright (C) 2018 CERN
 * Copyright The KiCad Developers, see AUTHORS.txt for contributors.
 *
 * Author: Maciej Suminski <[email protected]>
 * Author: Tomasz Wlostowski <[email protected]>
 *
 * 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 wxImage;
class wxDC;
class wxGCDC;
 
namespace KIGFX
{
class GAL_API CAIRO_PRINT_CTX : public PRINT_CONTEXT
{
public:
    CAIRO_PRINT_CTX( wxImage* aImage, double aDPI );
    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 = nullptr;
    wxImage*         m_targetImage = nullptr;
    cairo_t*         m_ctx = nullptr;
    cairo_surface_t* m_surface = nullptr;
 
#ifdef __WXMSW__
    void* m_hdc = nullptr; // the real type is HDC, but do not pull in extra headers
#endif /* __WXMSW__ */
 
    double m_dpi = 72.0;
};
 
 
class GAL_API 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 );
 
    static std::unique_ptr<CAIRO_PRINT_GAL> Create( GAL_DISPLAY_OPTIONS& aOptions, wxImage* aImage, double aDPI );
 
    void ComputeWorldScreenMatrix() override;
 
    GAL* GetGAL() override
    {
        return this;
    }
 
    PRINT_CONTEXT* GetPrintCtx() const override
    {
        return m_printCtx.get();
    }

    void SetNativePaperSize( const VECTOR2D& aSize, bool aRotateIfLandscape ) override;

    void SetSheetSize( const VECTOR2D& aSize ) override;
 
private:
    bool isLandscape() const
    {
        return m_nativePaperSize.x > m_nativePaperSize.y;
    }

    VECTOR2D m_nativePaperSize;

    bool m_hasNativeLandscapeRotation;
 
    std::unique_ptr<CAIRO_PRINT_CTX> m_printCtx;
};
} // namespace KIGFX
 
#endif /* _CAIRO_PRINT_H_ */