From cca66b9ec4e494c1d919bff0f71a820d8afab1fa Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:24:48 +0200 Subject: Adding upstream version 1.2.2. Signed-off-by: Daniel Baumann --- src/display/drawing-pattern.h | 87 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 src/display/drawing-pattern.h (limited to 'src/display/drawing-pattern.h') diff --git a/src/display/drawing-pattern.h b/src/display/drawing-pattern.h new file mode 100644 index 0000000..86b881a --- /dev/null +++ b/src/display/drawing-pattern.h @@ -0,0 +1,87 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/** + * @file + * Canvas belonging to SVG pattern. + *//* + * Authors: + * Tomasz Boczkowski + * + * Copyright (C) 2014 Authors + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ + +#ifndef SEEN_INKSCAPE_DISPLAY_DRAWING_PATTERN_H +#define SEEN_INKSCAPE_DISPLAY_DRAWING_PATTERN_H + +#include "display/drawing-group.h" + +typedef struct _cairo_pattern cairo_pattern_t; + +namespace Inkscape { + +/** + * @brief Drawing tree node used for rendering paints. + * + * DrawingPattern is used for rendering patterns and hatches. + * + * It renders it's children to a cairo_pattern_t structure that can be + * applied as source for fill or stroke operations. + */ +class DrawingPattern + : public DrawingGroup +{ +public: + DrawingPattern(Drawing &drawing, bool debug = false); + ~DrawingPattern() override; + + /** + * Set the transformation from pattern to user coordinate systems. + * @see SPPattern description for explanation of coordinate systems. + */ + void setPatternToUserTransform(Geom::Affine const &new_trans); + /** + * Set the tile rect position and dimensions in content coordinate system + */ + void setTileRect(Geom::Rect const &tile_rect); + /** + * Turn on overflow rendering. + * + * Overflow is implemented as repeated rendering of pattern contents. In every step + * a translation transform is applied. + */ + void setOverflow(Geom::Affine initial_transform, int steps, Geom::Affine step_transform); + /** + * Render the pattern. + * + * Returns caito_pattern_t structure that can be set as source surface. + */ + cairo_pattern_t *renderPattern(float opacity); +protected: + unsigned _updateItem(Geom::IntRect const &area, UpdateContext const &ctx, + unsigned flags, unsigned reset) override; + + Geom::Affine *_pattern_to_user; + Geom::Affine _overflow_initial_transform; + Geom::Affine _overflow_step_transform; + int _overflow_steps; + Geom::OptRect _tile_rect; + bool _debug; + Geom::IntPoint _pattern_resolution; +}; + +bool is_drawing_group(DrawingItem *item); + +} // end namespace Inkscape + +#endif // !SEEN_INKSCAPE_DISPLAY_DRAWING_PATTERN_H + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 : -- cgit v1.2.3