diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
commit | cca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch) | |
tree | 146f39ded1c938019e1ed42d30923c2ac9e86789 /src/object/sp-glyph-kerning.cpp | |
parent | Initial commit. (diff) | |
download | inkscape-upstream.tar.xz inkscape-upstream.zip |
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/object/sp-glyph-kerning.cpp | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/src/object/sp-glyph-kerning.cpp b/src/object/sp-glyph-kerning.cpp new file mode 100644 index 0000000..f924773 --- /dev/null +++ b/src/object/sp-glyph-kerning.cpp @@ -0,0 +1,189 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/** + * SVG <hkern> and <vkern> elements implementation + * W3C SVG 1.1 spec, page 476, section 20.7 + * + * Authors: + * Felipe C. da S. Sanches <juca@members.fsf.org> + * Abhishek Sharma + * + * Copyright (C) 2008 Authors + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ + +#include "xml/repr.h" +#include "attributes.h" +#include "sp-glyph-kerning.h" + +#include "document.h" +#include <cstring> + + +SPGlyphKerning::SPGlyphKerning() + : SPObject() +//TODO: correct these values: + , u1(nullptr) + , g1(nullptr) + , u2(nullptr) + , g2(nullptr) + , k(0) +{ +} + +void SPGlyphKerning::build(SPDocument *document, Inkscape::XML::Node *repr) +{ + SPObject::build(document, repr); + + this->readAttr(SPAttr::U1); + this->readAttr(SPAttr::G1); + this->readAttr(SPAttr::U2); + this->readAttr(SPAttr::G2); + this->readAttr(SPAttr::K); +} + +void SPGlyphKerning::release() +{ + SPObject::release(); +} + +GlyphNames::GlyphNames(const gchar* value) +{ + names = value ? g_strdup(value) : nullptr; +} + +GlyphNames::~GlyphNames() +{ + if (names) { + g_free(names); + } +} + +bool GlyphNames::contains(const char* name) +{ + if (!(this->names) || !name) { + return false; + } + + std::istringstream is(this->names); + std::string str; + std::string s(name); + + while (is >> str) { + if (str == s) { + return true; + } + } + + return false; +} + +void SPGlyphKerning::set(SPAttr key, const gchar *value) +{ + switch (key) { + case SPAttr::U1: + { + if (this->u1) { + delete this->u1; + } + + this->u1 = new UnicodeRange(value); + this->requestModified(SP_OBJECT_MODIFIED_FLAG); + break; + } + case SPAttr::U2: + { + if (this->u2) { + delete this->u2; + } + + this->u2 = new UnicodeRange(value); + this->requestModified(SP_OBJECT_MODIFIED_FLAG); + break; + } + case SPAttr::G1: + { + if (this->g1) { + delete this->g1; + } + + this->g1 = new GlyphNames(value); + this->requestModified(SP_OBJECT_MODIFIED_FLAG); + break; + } + case SPAttr::G2: + { + if (this->g2) { + delete this->g2; + } + + this->g2 = new GlyphNames(value); + this->requestModified(SP_OBJECT_MODIFIED_FLAG); + break; + } + case SPAttr::K: + { + double number = value ? g_ascii_strtod(value, nullptr) : 0; + + if (number != this->k){ + this->k = number; + this->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + } + default: + { + SPObject::set(key, value); + break; + } + } +} + +/** + * Receives update notifications. + */ +void SPGlyphKerning::update(SPCtx *ctx, guint flags) +{ + if (flags & SP_OBJECT_MODIFIED_FLAG) { + /* do something to trigger redisplay, updates? */ + this->readAttr(SPAttr::U1); + this->readAttr(SPAttr::U2); + this->readAttr(SPAttr::G2); + this->readAttr(SPAttr::K); + } + + SPObject::update(ctx, flags); +} + +#define COPY_ATTR(rd,rs,key) (rd)->setAttribute((key), rs->attribute(key)); + +Inkscape::XML::Node* SPGlyphKerning::write(Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags) +{ + if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) { + repr = xml_doc->createElement("svg:glyphkerning"); // fix this! + } + + if (repr != this->getRepr()) { + // All the COPY_ATTR functions below use + // XML Tree directly, while they shouldn't. + COPY_ATTR(repr, this->getRepr(), "u1"); + COPY_ATTR(repr, this->getRepr(), "g1"); + COPY_ATTR(repr, this->getRepr(), "u2"); + COPY_ATTR(repr, this->getRepr(), "g2"); + COPY_ATTR(repr, this->getRepr(), "k"); + } + SPObject::write(xml_doc, repr, flags); + + return repr; +} + +/* + 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 : |