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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
commit | cca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch) | |
tree | 146f39ded1c938019e1ed42d30923c2ac9e86789 /src/extension/internal/filter/shadows.h | |
parent | Initial commit. (diff) | |
download | inkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.tar.xz inkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.zip |
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/extension/internal/filter/shadows.h')
-rw-r--r-- | src/extension/internal/filter/shadows.h | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/src/extension/internal/filter/shadows.h b/src/extension/internal/filter/shadows.h new file mode 100644 index 0000000..2616b25 --- /dev/null +++ b/src/extension/internal/filter/shadows.h @@ -0,0 +1,194 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +#ifndef SEEN_INKSCAPE_EXTENSION_INTERNAL_FILTER_SHADOWS_H__ +#define SEEN_INKSCAPE_EXTENSION_INTERNAL_FILTER_SHADOWS_H__ +/* Change the 'SHADOWS' above to be your file name */ + +/* + * Copyright (C) 2013 Authors: + * Ivan Louette (filters) + * Nicolas Dufour (UI) <nicoduf@yahoo.fr> + * + * Shadow filters + * Drop shadow + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ +/* ^^^ Change the copyright to be you and your e-mail address ^^^ */ + +#include "filter.h" + +#include "extension/internal/clear-n_.h" +#include "extension/system.h" +#include "extension/extension.h" + +namespace Inkscape { +namespace Extension { +namespace Internal { +namespace Filter { + +/** + \brief Custom predefined Drop shadow filter. + + Colorizable Drop shadow. + + Filter's parameters: + * Blur radius (0.->200., default 3) -> blur (stdDeviation) + * Horizontal offset (-50.->50., default 6.0) -> offset (dx) + * Vertical offset (-50.->50., default 6.0) -> offset (dy) + * Blur type (enum, default outer) -> + outer = composite1 (operator="in"), composite2 (operator="over", in1="SourceGraphic", in2="offset") + inner = composite1 (operator="out"), composite2 (operator="atop", in1="offset", in2="SourceGraphic") + innercut = composite1 (operator="in"), composite2 (operator="out", in1="offset", in2="SourceGraphic") + outercut = composite1 (operator="out"), composite2 (operator="in", in1="SourceGraphic", in2="offset") + shadow = composite1 (operator="out"), composite2 (operator="atop", in1="offset", in2="offset") + * Color (guint, default 0,0,0,127) -> flood (flood-opacity, flood-color) + * Use object's color (boolean, default false) -> composite1 (in1, in2) +*/ +class ColorizableDropShadow : public Inkscape::Extension::Internal::Filter::Filter { +protected: + gchar const * get_filter_text (Inkscape::Extension::Extension * ext) override; + +public: + ColorizableDropShadow ( ) : Filter() { }; + ~ColorizableDropShadow ( ) override { if (_filter != nullptr) g_free((void *)_filter); return; } + + static void init () { + // clang-format off + Inkscape::Extension::build_from_mem( + "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n" + "<name>" N_("Drop Shadow") "</name>\n" + "<id>org.inkscape.effect.filter.ColorDropShadow</id>\n" + "<param name=\"tab\" type=\"notebook\">\n" + "<page name=\"optionstab\" gui-text=\"" N_("Options") "\">\n" + "<param name=\"blur\" gui-text=\"" N_("Blur radius (px)") "\" type=\"float\" appearance=\"full\" min=\"0.0\" max=\"200.0\">3.0</param>\n" + "<param name=\"xoffset\" gui-text=\"" N_("Horizontal offset (px)") "\" type=\"float\" appearance=\"full\" min=\"-50.0\" max=\"50.0\">6.0</param>\n" + "<param name=\"yoffset\" gui-text=\"" N_("Vertical offset (px)") "\" type=\"float\" appearance=\"full\" min=\"-50.0\" max=\"50.0\">6.0</param>\n" + "<param name=\"type\" gui-text=\"" N_("Shadow type:") "\" type=\"optiongroup\" appearance=\"combo\" >\n" + "<option value=\"outer\">" N_("Outer") "</option>\n" + "<option value=\"inner\">" N_("Inner") "</option>\n" + "<option value=\"outercut\">" N_("Outer cutout") "</option>\n" + "<option value=\"innercut\">" N_("Inner cutout") "</option>\n" + "<option value=\"shadow\">" N_("Shadow only") "</option>\n" + "</param>\n" + "</page>\n" + "<page name=\"coltab\" gui-text=\"" N_("Blur color") "\">\n" + "<param name=\"color\" gui-text=\"" N_("Color") "\" type=\"color\">127</param>\n" + "<param name=\"objcolor\" gui-text=\"" N_("Use object's color") "\" type=\"bool\" >false</param>\n" + "</page>\n" + "</param>\n" + "<effect>\n" + "<object-type>all</object-type>\n" + "<effects-menu>\n" + "<submenu name=\"" N_("Filters") "\">\n" + "<submenu name=\"" N_("Shadows and Glows") "\"/>\n" + "</submenu>\n" + "</effects-menu>\n" + "<menu-tip>" N_("Colorizable Drop shadow") "</menu-tip>\n" + "</effect>\n" + "</inkscape-extension>\n", new ColorizableDropShadow()); + // clang-format on + }; + +}; + +gchar const * +ColorizableDropShadow::get_filter_text (Inkscape::Extension::Extension * ext) +{ + if (_filter != nullptr) g_free((void *)_filter); + + std::ostringstream blur; + std::ostringstream a; + std::ostringstream r; + std::ostringstream g; + std::ostringstream b; + std::ostringstream x; + std::ostringstream y; + std::ostringstream comp1in1; + std::ostringstream comp1in2; + std::ostringstream comp1op; + std::ostringstream comp2in1; + std::ostringstream comp2in2; + std::ostringstream comp2op; + + const gchar *type = ext->get_param_optiongroup("type"); + guint32 color = ext->get_param_color("color"); + + blur << ext->get_param_float("blur"); + x << ext->get_param_float("xoffset"); + y << ext->get_param_float("yoffset"); + a << (color & 0xff) / 255.0F; + r << ((color >> 24) & 0xff); + g << ((color >> 16) & 0xff); + b << ((color >> 8) & 0xff); + + // Select object or user-defined color + if ((g_ascii_strcasecmp("innercut", type) == 0)) { + if (ext->get_param_bool("objcolor")) { + comp2in1 << "SourceGraphic"; + comp2in2 << "offset"; + } else { + comp2in1 << "offset"; + comp2in2 << "SourceGraphic"; + } + } else { + if (ext->get_param_bool("objcolor")) { + comp1in1 << "SourceGraphic"; + comp1in2 << "flood"; + } else { + comp1in1 << "flood"; + comp1in2 << "SourceGraphic"; + } + } + + // Shadow mode + if ((g_ascii_strcasecmp("outer", type) == 0)) { + comp1op << "in"; + comp2op << "over"; + comp2in1 << "SourceGraphic"; + comp2in2 << "offset"; + } else if ((g_ascii_strcasecmp("inner", type) == 0)) { + comp1op << "out"; + comp2op << "atop"; + comp2in1 << "offset"; + comp2in2 << "SourceGraphic"; + } else if ((g_ascii_strcasecmp("outercut", type) == 0)) { + comp1op << "in"; + comp2op << "out"; + comp2in1 << "offset"; + comp2in2 << "SourceGraphic"; + } else if ((g_ascii_strcasecmp("innercut", type) == 0)){ + comp1op << "out"; + comp1in1 << "flood"; + comp1in2 << "SourceGraphic"; + comp2op << "in"; + } else { //shadow + comp1op << "in"; + comp2op << "atop"; + comp2in1 << "offset"; + comp2in2 << "offset"; + } + + // clang-format off + _filter = g_strdup_printf( + "<filter xmlns:inkscape=\"http://www.inkscape.org/namespaces/inkscape\" style=\"color-interpolation-filters:sRGB;\" inkscape:label=\"Drop Shadow\">\n" + "<feFlood flood-opacity=\"%s\" flood-color=\"rgb(%s,%s,%s)\" result=\"flood\" />\n" + "<feComposite in=\"%s\" in2=\"%s\" operator=\"%s\" result=\"composite1\" />\n" + "<feGaussianBlur in=\"composite1\" stdDeviation=\"%s\" result=\"blur\" />\n" + "<feOffset dx=\"%s\" dy=\"%s\" result=\"offset\" />\n" + "<feComposite in=\"%s\" in2=\"%s\" operator=\"%s\" result=\"composite2\" />\n" + "</filter>\n", a.str().c_str(), r.str().c_str(), g.str().c_str(), b.str().c_str(), + comp1in1.str().c_str(), comp1in2.str().c_str(), comp1op.str().c_str(), + blur.str().c_str(), x.str().c_str(), y.str().c_str(), + comp2in1.str().c_str(), comp2in2.str().c_str(), comp2op.str().c_str()); + // clang-format on + + return _filter; +}; /* Drop shadow filter */ + +}; /* namespace Filter */ +}; /* namespace Internal */ +}; /* namespace Extension */ +}; /* namespace Inkscape */ + +/* Change the 'SHADOWS' below to be your file name */ +#endif /* SEEN_INKSCAPE_EXTENSION_INTERNAL_FILTER_SHADOWS_H__ */ |