RetroZilla/gfx/thebes/public/gfxPattern.h

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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 * The Original Code is Oracle Corporation code.
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 * The Initial Developer of the Original Code is Oracle Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2005
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 * Contributor(s):
 *   Stuart Parmenter <pavlov@pavlov.net>
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#ifndef GFX_PATTERN_H
#define GFX_PATTERN_H

#include <cairo.h>

#include "gfxColor.h"
#include "gfxASurface.h"
#include "gfxMatrix.h"
#include "gfxTypes.h"

class gfxPattern {
    THEBES_DECL_REFCOUNTING

public:
    // from another surface
    gfxPattern(gfxASurface* surface) {
        mPattern = cairo_pattern_create_for_surface(surface->CairoSurface());
    }

    // linear
    gfxPattern(gfxFloat x0, gfxFloat y0, gfxFloat x1, gfxFloat y1) {
        mPattern = cairo_pattern_create_linear(x0, y0, x1, y1);
    }

    // radial
    gfxPattern(gfxFloat cx0, gfxFloat cy0, gfxFloat radius0,
               gfxFloat cx1, gfxFloat cy1, gfxFloat radius1) {
        mPattern = cairo_pattern_create_radial(cx0, cy0, radius0,
                                               cx1, cy1, radius1);
    }

    virtual ~gfxPattern() {
        cairo_pattern_destroy(mPattern);
    }

    cairo_pattern_t *CairoPattern() {
        return mPattern;
    }

    void AddColorStop(gfxFloat offset, const gfxRGBA& c) {
        cairo_pattern_add_color_stop_rgba(mPattern, offset, c.r, c.g, c.b, c.a);
    }

    void SetMatrix(const gfxMatrix& matrix) {
        cairo_matrix_t mat = matrix.ToCairoMatrix();
        cairo_pattern_set_matrix(mPattern, &mat);
    }

    gfxMatrix CurrentMatrix() const {
        cairo_matrix_t mat;
        cairo_pattern_get_matrix(mPattern, &mat);
        return gfxMatrix(mat);
    }

    // none, repeat, reflect
    void SetExtend(int extend) {
        cairo_pattern_set_extend(mPattern, (cairo_extend_t)extend);
    }

    int Extend() const {
        return (int)cairo_pattern_get_extend(mPattern);
    }

    void SetFilter(int filter) {
        cairo_pattern_set_filter(mPattern, (cairo_filter_t)filter);
    }

    int Filter() const {
        return (int)cairo_pattern_get_filter(mPattern);
    }

protected:
    gfxPattern(cairo_pattern_t *pattern) : mPattern(pattern) {}
    cairo_pattern_t *mPattern;
};

#endif /* GFX_PATTERN_H */