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-rw-r--r--src/sp-item.cpp20
-rw-r--r--src/ui/dialog/document-properties.cpp10
2 files changed, 21 insertions, 9 deletions
diff --git a/src/sp-item.cpp b/src/sp-item.cpp
index 428f9555e..19dc71785 100644
--- a/src/sp-item.cpp
+++ b/src/sp-item.cpp
@@ -234,9 +234,13 @@ void SPItem::setCenter(Geom::Point const &object_centre) {
document->ensureUpToDate();
// Copied from DocumentProperties::onDocUnitChange()
- gdouble viewscale_w = this->document->getWidth().value("px") / this->document->getRoot()->viewBox.width();
- gdouble viewscale_h = this->document->getHeight().value("px")/ this->document->getRoot()->viewBox.height();
- gdouble viewscale = std::min(viewscale_h, viewscale_w);
+ gdouble viewscale = 1.0;
+ Geom::Rect vb = this->document->getRoot()->viewBox;
+ if ( !vb.hasZeroArea() ) {
+ gdouble viewscale_w = this->document->getWidth().value("px") / vb.width();
+ gdouble viewscale_h = this->document->getHeight().value("px")/ vb.height();
+ viewscale = std::min(viewscale_h, viewscale_w);
+ }
// FIXME this is seriously wrong
Geom::OptRect bbox = desktopGeometricBounds();
@@ -267,9 +271,13 @@ Geom::Point SPItem::getCenter() const {
document->ensureUpToDate();
// Copied from DocumentProperties::onDocUnitChange()
- gdouble viewscale_w = this->document->getWidth().value("px") / this->document->getRoot()->viewBox.width();
- gdouble viewscale_h = this->document->getHeight().value("px")/ this->document->getRoot()->viewBox.height();
- gdouble viewscale = std::min(viewscale_h, viewscale_w);
+ gdouble viewscale = 1.0;
+ Geom::Rect vb = this->document->getRoot()->viewBox;
+ if ( !vb.hasZeroArea() ) {
+ gdouble viewscale_w = this->document->getWidth().value("px") / vb.width();
+ gdouble viewscale_h = this->document->getHeight().value("px")/ vb.height();
+ viewscale = std::min(viewscale_h, viewscale_w);
+ }
// FIXME this is seriously wrong
Geom::OptRect bbox = desktopGeometricBounds();
diff --git a/src/ui/dialog/document-properties.cpp b/src/ui/dialog/document-properties.cpp
index 4e4616724..2757a0ec9 100644
--- a/src/ui/dialog/document-properties.cpp
+++ b/src/ui/dialog/document-properties.cpp
@@ -1736,9 +1736,13 @@ void DocumentProperties::onDocUnitChange()
prefs->setBool("/options/transform/gradient", true);
{
ShapeEditor::blockSetItem(true);
- gdouble viewscale_w = doc->getWidth().value("px")/doc->getRoot()->viewBox.width();
- gdouble viewscale_h = doc->getHeight().value("px")/doc->getRoot()->viewBox.height();
- gdouble viewscale = std::min(viewscale_h, viewscale_w);
+ gdouble viewscale = 1.0;
+ Geom::Rect vb = doc->getRoot()->viewBox;
+ if ( !vb.hasZeroArea() ) {
+ gdouble viewscale_w = doc->getWidth().value("px") / vb.width();
+ gdouble viewscale_h = doc->getHeight().value("px")/ vb.height();
+ viewscale = std::min(viewscale_h, viewscale_w);
+ }
gdouble scale = Inkscape::Util::Quantity::convert(1, old_doc_unit, doc_unit);
doc->getRoot()->scaleChildItemsRec(Geom::Scale(scale), Geom::Point(-viewscale*doc->getRoot()->viewBox.min()[Geom::X] +
(doc->getWidth().value("px") - viewscale*doc->getRoot()->viewBox.width())/2,