#ifndef SEEN_SP_GRADIENT_CHEMISTRY_H #define SEEN_SP_GRADIENT_CHEMISTRY_H /* * Various utility methods for gradients * * Author: * Lauris Kaplinski <lauris@kaplinski.com> * bulia byak <buliabyak@users.sf.net> * Johan Engelen <j.b.c.engelen@ewi.utwente.nl> * Jon A. Cruz <jon@joncruz.org> * * Copyright (C) 2010 Authors * Copyright (C) 2007 Johan Engelen * Copyright (C) 2001-2002 Lauris Kaplinski * Copyright (C) 2001 Ximian, Inc. * * Released under GNU GPL, read the file 'COPYING' for more information */ #include "forward.h" #include "sp-gradient.h" /* * Either normalizes given gradient to vector, or returns fresh normalized * vector - in latter case, original gradient is flattened and stops cleared * No transrefing - i.e. caller shouldn't hold reference to original and * does not get one to new automatically (doc holds ref of every object anyways) */ SPGradient *sp_gradient_ensure_vector_normalized (SPGradient *gradient); /* * Sets item fill/stroke to lineargradient with given vector, creating * new private gradient, if needed * gr has to be normalized vector */ SPGradient *sp_item_set_gradient (SPItem *item, SPGradient *gr, SPGradientType type, bool is_fill); /* * Get default normalized gradient vector of document, create if there is none */ SPGradient *sp_document_default_gradient_vector( SPDocument *document, SPColor const &color, bool singleStop ); SPGradient *sp_gradient_vector_for_object( SPDocument *doc, SPDesktop *desktop, SPObject *o, bool is_fill, bool singleStop = false ); void sp_object_ensure_fill_gradient_normalized (SPObject *object); void sp_object_ensure_stroke_gradient_normalized (SPObject *object); SPGradient *sp_gradient_convert_to_userspace (SPGradient *gr, SPItem *item, const gchar *property); SPGradient *sp_gradient_reset_to_userspace (SPGradient *gr, SPItem *item); SPGradient *sp_gradient_fork_vector_if_necessary (SPGradient *gr); SPGradient *sp_gradient_get_forked_vector_if_necessary(SPGradient *gradient, bool force_vector); SPStop* sp_last_stop(SPGradient *gradient); SPStop* sp_get_stop_i(SPGradient *gradient, guint i); guint sp_number_of_stops(SPGradient const *gradient); guint sp_number_of_stops_before_stop(SPGradient const *gradient, SPStop *target); guint32 average_color (guint32 c1, guint32 c2, gdouble p = 0.5); SPStop *sp_vector_add_stop (SPGradient *vector, SPStop* prev_stop, SPStop* next_stop, gfloat offset); void sp_gradient_transform_multiply (SPGradient *gradient, Geom::Matrix postmul, bool set); SPGradient * sp_item_gradient (SPItem *item, bool fill_or_stroke); void sp_item_gradient_set_coords (SPItem *item, guint point_type, guint point_i, Geom::Point p_desk, bool fill_or_stroke, bool write_repr, bool scale); Geom::Point sp_item_gradient_get_coords (SPItem *item, guint point_type, guint point_i, bool fill_or_stroke); SPGradient *sp_item_gradient_get_vector (SPItem *item, bool fill_or_stroke); SPGradientSpread sp_item_gradient_get_spread (SPItem *item, bool fill_or_stroke); struct SPCSSAttr; void sp_item_gradient_stop_set_style (SPItem *item, guint point_type, guint point_i, bool fill_or_stroke, SPCSSAttr *stop); guint32 sp_item_gradient_stop_query_style (SPItem *item, guint point_type, guint point_i, bool fill_or_stroke); void sp_item_gradient_edit_stop (SPItem *item, guint point_type, guint point_i, bool fill_or_stroke); void sp_item_gradient_reverse_vector (SPItem *item, bool fill_or_stroke); #endif // SEEN_SP_GRADIENT_CHEMISTRY_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:encoding=utf-8:textwidth=99 :