Adding upstream version 1.2.2.upstream/1.2.2upstream

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

1 files changed, 259 insertions, 0 deletions

diff --git a/src/object/sp-symbol.cpp b/src/object/sp-symbol.cpp
new file mode 100644
index 0000000..40421d3
--- /dev/null
+++ b/src/object/sp-symbol.cpp
@@ -0,0 +1,259 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * SVG <symbol> implementation
+ *
+ * Authors:
+ *   Lauris Kaplinski <lauris@kaplinski.com>
+ *   Abhishek Sharma
+ *   Jon A. Cruz <jon@joncruz.org>
+ *
+ * Copyright (C) 1999-2003 Lauris Kaplinski
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include <string>
+#include <glibmm/i18n.h>
+#include <2geom/transforms.h>
+
+#include "display/drawing-group.h"
+#include "xml/repr.h"
+#include "attributes.h"
+#include "print.h"
+#include "sp-symbol.h"
+#include "sp-use.h"
+#include "document.h"
+#include "inkscape.h"
+#include "desktop.h"
+#include "layer-manager.h"
+
+SPSymbol::SPSymbol() : SPGroup(), SPViewBox() {
+}
+
+SPSymbol::~SPSymbol() = default;
+
+void SPSymbol::build(SPDocument *document, Inkscape::XML::Node *repr) {
+    this->readAttr(SPAttr::X);
+    this->readAttr(SPAttr::Y);
+    this->readAttr(SPAttr::WIDTH);
+    this->readAttr(SPAttr::HEIGHT);
+    this->readAttr(SPAttr::VIEWBOX);
+    this->readAttr(SPAttr::PRESERVEASPECTRATIO);
+
+    SPGroup::build(document, repr);
+}
+
+void SPSymbol::release() {
+	SPGroup::release();
+}
+
+void SPSymbol::set(SPAttr key, const gchar* value) {
+    switch (key) {
+    case SPAttr::X:
+        this->x.readOrUnset(value);
+        this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
+        break;
+
+    case SPAttr::Y:
+        this->y.readOrUnset(value);
+        this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
+        break;
+
+    case SPAttr::WIDTH:
+        this->width.readOrUnset(value, SVGLength::PERCENT, 1.0, 1.0);
+        this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
+        break;
+
+    case SPAttr::HEIGHT:
+        this->height.readOrUnset(value, SVGLength::PERCENT, 1.0, 1.0);
+        this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
+        break;
+
+    case SPAttr::VIEWBOX:
+        set_viewBox( value );
+        // std::cout << "Symbol: ViewBox: " << viewBox << std::endl;
+        this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_VIEWPORT_MODIFIED_FLAG);
+        break;
+
+    case SPAttr::PRESERVEASPECTRATIO:
+        set_preserveAspectRatio( value );
+        // std::cout << "Symbol: Preserve aspect ratio: " << aspect_align << ", " << aspect_clip << std::endl;
+        this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_VIEWPORT_MODIFIED_FLAG);
+        break;
+
+    default:
+        SPGroup::set(key, value);
+        break;
+    }
+}
+
+void SPSymbol::child_added(Inkscape::XML::Node *child, Inkscape::XML::Node *ref) {
+	SPGroup::child_added(child, ref);
+}
+
+void SPSymbol::unSymbol()
+{
+    SPDocument *doc = this->document;
+    Inkscape::XML::Document *xml_doc = doc->getReprDoc();
+    // Check if something is selected.
+
+    doc->ensureUpToDate();
+
+    // Create new <g> and insert in current layer
+    Inkscape::XML::Node *group = xml_doc->createElement("svg:g");
+    //TODO: Better handle if no desktop, currently go to defs without it
+    SPDesktop *desktop = SP_ACTIVE_DESKTOP;
+    if(desktop && desktop->doc() == doc) {
+        desktop->layerManager().currentLayer()->getRepr()->appendChild(group);
+    } else {
+        parent->getRepr()->appendChild(group);
+    }
+
+    // Move all children of symbol to group
+    std::vector<SPObject*> children = childList(false);
+
+    // Converting a group to a symbol inserts a group for non-translational transform.
+    // In converting a symbol back to a group we strip out the inserted group (or any other
+    // group that only adds a transform to the symbol content).
+    if( children.size() == 1 ) {
+        SPObject *object = children[0];
+        if ( dynamic_cast<SPGroup *>( object ) ) {
+            if( object->getAttribute("style") == nullptr ||
+                object->getAttribute("class") == nullptr ) {
+
+                group->setAttribute("transform", object->getAttribute("transform"));
+                children = object->childList(false);
+            }
+        }
+    }
+    for (std::vector<SPObject*>::const_reverse_iterator i=children.rbegin();i!=children.rend();++i){
+        Inkscape::XML::Node *repr = (*i)->getRepr();
+        repr->parent()->removeChild(repr);
+        group->addChild(repr,nullptr);
+    }
+
+    // Copy relevant attributes
+    group->setAttribute("style", getAttribute("style"));
+    group->setAttribute("class", getAttribute("class"));
+    group->setAttribute("title", getAttribute("title"));
+    group->setAttribute("inkscape:transform-center-x",
+                        getAttribute("inkscape:transform-center-x"));
+    group->setAttribute("inkscape:transform-center-y",
+                        getAttribute("inkscape:transform-center-y"));
+
+
+    // Need to delete <symbol>; all <use> elements that referenced <symbol> should
+    // auto-magically reference <g> (if <symbol> deleted after setting <g> 'id').
+    Glib::ustring id = getAttribute("id");
+    group->setAttribute("id", id);
+    
+    deleteObject(true);
+
+    // Clean up
+    Inkscape::GC::release(group);
+}
+
+void SPSymbol::update(SPCtx *ctx, guint flags) {
+    if (this->cloned) {
+
+        SPItemCtx *ictx = (SPItemCtx *) ctx;
+
+        // Calculate x, y, width, height from parent/initial viewport
+        this->calcDimsFromParentViewport(ictx, false, dynamic_cast<SPUse const *>(parent));
+
+        SPItemCtx rctx = *ictx;
+        rctx.viewport = Geom::Rect::from_xywh(x.computed, y.computed, width.computed, height.computed);
+        rctx = get_rctx(&rctx);
+
+        // And invoke parent method
+        SPGroup::update((SPCtx *) &rctx, flags);
+
+        // As last step set additional transform of drawing group
+        for (SPItemView *v = this->display; v != nullptr; v = v->next) {
+        	Inkscape::DrawingGroup *g = dynamic_cast<Inkscape::DrawingGroup *>(v->arenaitem);
+        	g->setChildTransform(this->c2p);
+        }
+    } else {
+        // No-op
+        SPGroup::update(ctx, flags);
+    }
+}
+
+void SPSymbol::modified(unsigned int flags) {
+	SPGroup::modified(flags);
+}
+
+
+Inkscape::XML::Node* SPSymbol::write(Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags) {
+    if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
+        repr = xml_doc->createElement("svg:symbol");
+    }
+
+    this->writeDimensions(repr);
+    this->write_viewBox(repr);
+    this->write_preserveAspectRatio(repr);
+
+    SPGroup::write(xml_doc, repr, flags);
+
+    return repr;
+}
+
+Inkscape::DrawingItem* SPSymbol::show(Inkscape::Drawing &drawing, unsigned int key, unsigned int flags) {
+    Inkscape::DrawingItem *ai = nullptr;
+
+    if (this->cloned) {
+        // Cloned <symbol> is actually renderable
+        ai = SPGroup::show(drawing, key, flags);
+        Inkscape::DrawingGroup *g = dynamic_cast<Inkscape::DrawingGroup *>(ai);
+
+		if (g) {
+			g->setChildTransform(this->c2p);
+		}
+    }
+
+    return ai;
+}
+
+void SPSymbol::hide(unsigned int key) {
+    if (this->cloned) {
+        /* Cloned <symbol> is actually renderable */
+        SPGroup::hide(key);
+    }
+}
+
+
+Geom::OptRect SPSymbol::bbox(Geom::Affine const &transform, SPItem::BBoxType type) const {
+    Geom::OptRect bbox;
+
+    // We don't need a bounding box for Symbols dialog when selecting
+    // symbols. They have no canvas location. But cloned symbols are.
+    if (this->cloned) {
+    	Geom::Affine const a( this->c2p * transform );
+    	bbox = SPGroup::bbox(a, type);
+    }
+
+    return bbox;
+}
+
+void SPSymbol::print(SPPrintContext* ctx) {
+    if (this->cloned) {
+        // Cloned <symbol> is actually renderable
+
+        ctx->bind(this->c2p, 1.0);
+
+        SPGroup::print(ctx);
+
+        ctx->release ();
+    }
+}
+
+/*
+  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 :