more unreffing temporary styles properly

[inkscape.git] / src / document.cpp

diff --git a/src/document.cpp b/src/document.cpp
index 4dd0f3d211321cf1bb7d1c88e8278327ee57d17b..252c9b17379070e296bc2cc7b058400b42b841da 100644 (file)
--- a/src/document.cpp
+++ b/src/document.cpp
@@ -70,6 +70,8 @@ gboolean sp_document_resource_list_free(gpointer key, gpointer value, gpointer d
 
 static gint doc_count = 0;
 
+static unsigned long next_serial = 0;
+
 SPDocument::SPDocument() {
     SPDocumentPrivate *p;
 
@@ -96,6 +98,8 @@ SPDocument::SPDocument() {
 
     p = new SPDocumentPrivate();
 
+    p->serial = next_serial++;
+
     p->iddef = g_hash_table_new(g_direct_hash, g_direct_equal);
     p->reprdef = g_hash_table_new(g_direct_hash, g_direct_equal);
 
@@ -182,6 +186,10 @@ SPDocument::~SPDocument() {
     //delete this->_whiteboard_session_manager;
 }
 
+unsigned long SPDocument::serial() const {
+    return priv->serial;
+}
+
 void SPDocument::queueForOrphanCollection(SPObject *object) {
     g_return_if_fail(object != NULL);
     g_return_if_fail(SP_OBJECT_DOCUMENT(object) == this);
@@ -397,11 +405,6 @@ sp_document_new_from_mem(gchar const *buffer, gint length, unsigned int keepaliv
     return doc;
 }
 
-SPDocument *sp_document_new_dummy() {
-    SPDocument *document = new SPDocument();
-    return document;
-}
-
 SPDocument *
 sp_document_ref(SPDocument *doc)
 {
@@ -482,23 +485,26 @@ gdouble sp_document_height(SPDocument *document)
 }
 
 /**
- * Given an NRRect that may, for example, correspond to the bbox of an object
+ * Given an NR::Rect that may, for example, correspond to the bbox of an object,
  * this function fits the canvas to that rect by resizing the canvas
  * and translating the document root into position.
  */
-void SPDocument::fitToRect(NRRect const & rect)
+void SPDocument::fitToRect(NR::Rect const &rect)
 {
-    g_return_if_fail(!nr_rect_d_test_empty(&rect));
-    
-    gdouble w = rect.x1 - rect.x0;
-    gdouble h = rect.y1 - rect.y0;
-    gdouble old_height = sp_document_height(this);
-    SPUnit unit = sp_unit_get_by_id(SP_UNIT_PX);
-    sp_document_set_width(this, w, &unit);
-    sp_document_set_height(this, h, &unit);
-
-    NR::translate tr = NR::translate::translate(-rect.x0,-(rect.y0 + (h - old_height)));
-    static_cast<SPGroup *>(root)->translateChildItems(tr);
+    g_return_if_fail(!rect.isEmpty());
+
+    using NR::X; using NR::Y;
+    double const w = rect.extent(X);
+    double const h = rect.extent(Y);
+
+    double const old_height = sp_document_height(this);
+    SPUnit const &px(sp_unit_get_by_id(SP_UNIT_PX));
+    sp_document_set_width(this, w, &px);
+    sp_document_set_height(this, h, &px);
+
+    NR::translate const tr(NR::Point(0, (old_height - h))
+                           - rect.min());
+    SP_GROUP(root)->translateChildItems(tr);
 }
 
 void sp_document_set_uri(SPDocument *document, gchar const *uri)
@@ -996,6 +1002,30 @@ GSList *sp_document_partial_items_in_box(SPDocument *document, unsigned int dkey
     return find_items_in_area(NULL, SP_GROUP(document->root), dkey, box, overlaps);
 }
 
+GSList *
+sp_document_items_at_points(SPDocument *document, unsigned const key, std::vector<NR::Point> points)
+{
+    GSList *items = NULL;
+
+    // When picking along the path, we don't want small objects close together 
+    // (such as hatching strokes) to obscure each other by their deltas, 
+    // so we temporarily set delta to a small value
+    gdouble saved_delta = prefs_get_double_attribute ("options.cursortolerance", "value", 1.0);
+    prefs_set_double_attribute ("options.cursortolerance", "value", 0.25);
+
+    for(unsigned int i = 0; i < points.size(); i++) {
+        SPItem *item = sp_document_item_at_point(document, key, points[i],
+                                         false, NULL);
+        if (item && !g_slist_find(items, item))
+            items = g_slist_prepend (items, item);
+    }
+
+    // and now we restore it back
+    prefs_set_double_attribute ("options.cursortolerance", "value", saved_delta);
+
+    return items;
+}
+
 SPItem *
 sp_document_item_at_point(SPDocument *document, unsigned const key, NR::Point const p,
                           gboolean const into_groups, SPItem *upto)