Adding upstream version 1.2.2.upstream/1.2.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 290 insertions, 0 deletions

diff --git a/src/object/sp-glyph.cpp b/src/object/sp-glyph.cpp
new file mode 100644
index 0000000..e8fecdf
--- /dev/null
+++ b/src/object/sp-glyph.cpp
@@ -0,0 +1,290 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifdef HAVE_CONFIG_H
+#endif
+
+/*
+ * SVG <glyph> element implementation
+ *
+ * Author:
+ *   Felipe C. da S. Sanches <juca@members.fsf.org>
+ *   Abhishek Sharma
+ *
+ * Copyright (C) 2008, Felipe C. da S. Sanches
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "xml/repr.h"
+#include "attributes.h"
+#include "sp-glyph.h"
+#include "document.h"
+
+SPGlyph::SPGlyph()
+    : SPObject() 
+//TODO: correct these values:
+    , d(nullptr)
+    , orientation(GLYPH_ORIENTATION_BOTH)
+    , arabic_form(GLYPH_ARABIC_FORM_INITIAL)
+    , lang(nullptr)
+    , horiz_adv_x(0)
+    , vert_origin_x(0)
+    , vert_origin_y(0)
+    , vert_adv_y(0)
+{
+}
+
+void SPGlyph::build(SPDocument *document, Inkscape::XML::Node *repr)
+{
+    SPObject::build(document, repr);
+
+    this->readAttr(SPAttr::UNICODE);
+    this->readAttr(SPAttr::GLYPH_NAME);
+    this->readAttr(SPAttr::D);
+    this->readAttr(SPAttr::ORIENTATION);
+    this->readAttr(SPAttr::ARABIC_FORM);
+    this->readAttr(SPAttr::LANG);
+    this->readAttr(SPAttr::HORIZ_ADV_X);
+    this->readAttr(SPAttr::VERT_ORIGIN_X);
+    this->readAttr(SPAttr::VERT_ORIGIN_Y);
+    this->readAttr(SPAttr::VERT_ADV_Y);
+}
+
+void SPGlyph::release() {
+    SPObject::release();
+}
+
+static glyphArabicForm sp_glyph_read_arabic_form(gchar const *value){
+    if (!value) {
+    	return GLYPH_ARABIC_FORM_INITIAL; //TODO: verify which is the default default (for me, the spec is not clear)
+    }
+    
+    switch(value[0]){
+        case 'i':
+            if (strncmp(value, "initial", 7) == 0) {
+            	return GLYPH_ARABIC_FORM_INITIAL;
+            }
+            
+            if (strncmp(value, "isolated", 8) == 0) {
+            	return GLYPH_ARABIC_FORM_ISOLATED;
+            }
+            break;
+        case 'm':
+            if (strncmp(value, "medial", 6) == 0) {
+            	return GLYPH_ARABIC_FORM_MEDIAL;
+            }
+            break;
+        case 't':
+            if (strncmp(value, "terminal", 8) == 0) {
+            	return GLYPH_ARABIC_FORM_TERMINAL;
+            }
+            break;
+    }
+    
+    return GLYPH_ARABIC_FORM_INITIAL; //TODO: VERIFY DEFAULT!
+}
+
+static glyphOrientation sp_glyph_read_orientation(gchar const *value)
+{
+    if (!value) {
+    	return GLYPH_ORIENTATION_BOTH;
+    }
+    
+    switch(value[0]){
+        case 'h':
+            return GLYPH_ORIENTATION_HORIZONTAL;
+            break;
+        case 'v':
+            return GLYPH_ORIENTATION_VERTICAL;
+            break;
+    }
+    
+//ERROR? TODO: VERIFY PROPER ERROR HANDLING
+    return GLYPH_ORIENTATION_BOTH;
+}
+
+void SPGlyph::set(SPAttr key, const gchar *value)
+{
+    switch (key) {
+        case SPAttr::UNICODE:
+        {
+            this->unicode.clear();
+            
+            if (value) {
+            	this->unicode.append(value);
+            }
+            
+            this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            break;
+        }
+        case SPAttr::GLYPH_NAME:
+        {
+            this->glyph_name.clear();
+            
+            if (value) {
+            	this->glyph_name.append(value);
+            }
+            
+            this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            break;
+        }
+        case SPAttr::D:
+        {
+            if (this->d) {
+            	g_free(this->d);
+            }
+            
+            this->d = g_strdup(value);
+            this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            break;
+        }
+        case SPAttr::ORIENTATION:
+        {
+            glyphOrientation orient = sp_glyph_read_orientation(value);
+            
+            if (this->orientation != orient){
+                this->orientation = orient;
+                this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            }
+            break;
+        }
+        case SPAttr::ARABIC_FORM:
+        {
+            glyphArabicForm form = sp_glyph_read_arabic_form(value);
+            
+            if (this->arabic_form != form){
+                this->arabic_form = form;
+                this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            }
+            break;
+        }
+        case SPAttr::LANG:
+        {
+            if (this->lang) {
+            	g_free(this->lang);
+            }
+            
+            this->lang = g_strdup(value);
+            this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            break;
+        }
+        case SPAttr::HORIZ_ADV_X:
+        {
+            double number = value ? g_ascii_strtod(value, nullptr) : 0;
+            
+            if (number != this->horiz_adv_x){
+                this->horiz_adv_x = number;
+                this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            }
+            break;
+        }
+        case SPAttr::VERT_ORIGIN_X:
+        {
+            double number = value ? g_ascii_strtod(value, nullptr) : 0;
+            
+            if (number != this->vert_origin_x){
+                this->vert_origin_x = number;
+                this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            }
+            break;
+        }
+        case SPAttr::VERT_ORIGIN_Y:
+        {
+            double number = value ? g_ascii_strtod(value, nullptr) : 0;
+            
+            if (number != this->vert_origin_y){
+                this->vert_origin_y = number;
+                this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            }
+            break;
+        }
+        case SPAttr::VERT_ADV_Y:
+        {
+            double number = value ? g_ascii_strtod(value, nullptr) : 0;
+            
+            if (number != this->vert_adv_y){
+                this->vert_adv_y = number;
+                this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            }
+            break;
+        }
+        default:
+        {
+        	SPObject::set(key, value);
+            break;
+        }
+    }
+}
+
+/**
+ * Receives update notifications.
+ */
+void SPGlyph::update(SPCtx *ctx, guint flags)
+{
+    if (flags & SP_OBJECT_MODIFIED_FLAG) {
+        /* do something to trigger redisplay, updates? */
+        this->readAttr(SPAttr::UNICODE);
+        this->readAttr(SPAttr::GLYPH_NAME);
+        this->readAttr(SPAttr::D);
+        this->readAttr(SPAttr::ORIENTATION);
+        this->readAttr(SPAttr::ARABIC_FORM);
+        this->readAttr(SPAttr::LANG);
+        this->readAttr(SPAttr::HORIZ_ADV_X);
+        this->readAttr(SPAttr::VERT_ORIGIN_X);
+        this->readAttr(SPAttr::VERT_ORIGIN_Y);
+        this->readAttr(SPAttr::VERT_ADV_Y);
+    }
+
+    SPObject::update(ctx, flags);
+}
+
+#define COPY_ATTR(rd,rs,key) (rd)->setAttribute((key), rs->attribute(key));
+
+Inkscape::XML::Node* SPGlyph::write(Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags)
+{
+    if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
+        repr = xml_doc->createElement("svg:glyph");
+    }
+
+    /* I am commenting out this part because I am not certain how does it work. I will have to study it later. Juca
+    repr->setAttribute("unicode", glyph->unicode);
+    repr->setAttribute("glyph-name", glyph->glyph_name);
+    repr->setAttribute("d", glyph->d);
+    repr->setAttributeSvgDouble("orientation", (double) glyph->orientation);
+    repr->setAttributeSvgDouble("arabic-form", (double) glyph->arabic_form);
+    repr->setAttribute("lang", glyph->lang);
+    repr->setAttributeSvgDouble("horiz-adv-x", glyph->horiz_adv_x);
+    repr->setAttributeSvgDouble("vert-origin-x", glyph->vert_origin_x);
+    repr->setAttributeSvgDouble("vert-origin-y", glyph->vert_origin_y);
+    repr->setAttributeSvgDouble("vert-adv-y", glyph->vert_adv_y);
+    */
+
+    if (repr != this->getRepr()) {
+        // All the COPY_ATTR functions below use
+        // XML Tree directly while they shouldn't.
+        COPY_ATTR(repr, this->getRepr(), "unicode");
+        COPY_ATTR(repr, this->getRepr(), "glyph-name");
+        COPY_ATTR(repr, this->getRepr(), "d");
+        COPY_ATTR(repr, this->getRepr(), "orientation");
+        COPY_ATTR(repr, this->getRepr(), "arabic-form");
+        COPY_ATTR(repr, this->getRepr(), "lang");
+        COPY_ATTR(repr, this->getRepr(), "horiz-adv-x");
+        COPY_ATTR(repr, this->getRepr(), "vert-origin-x");
+        COPY_ATTR(repr, this->getRepr(), "vert-origin-y");
+        COPY_ATTR(repr, this->getRepr(), "vert-adv-y");
+    }
+
+    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 :