simplify code that puts anchors at start and end of paths in draw context.

[inkscape.git] / src / filter-chemistry.cpp

diff --git a/src/filter-chemistry.cpp b/src/filter-chemistry.cpp
index e0dbee9ea8b8b2ef41d92ba78038c0c4e0faa2b1..0be3252a9f3b874e25f6541d6c6e680b637aee09 100644 (file)
--- a/src/filter-chemistry.cpp
+++ b/src/filter-chemistry.cpp
@@ -26,6 +26,7 @@
 #include "sp-filter-reference.h"
 #include "sp-gaussian-blur.h"
 #include "svg/css-ostringstream.h"
+#include "libnr/nr-matrix-fns.h"
 
 #include "xml/repr.h"
 
@@ -121,7 +122,6 @@ filter_add_primitive(SPFilter *filter, const NR::FilterPrimitiveType type)
     //create filter primitive node
     Inkscape::XML::Node *repr;
     repr = xml_doc->createElement(FPConverter.get_key(type).c_str());
-    repr->setAttribute("inkscape:collect", "always");
 
     // set default values
     switch(type) {
@@ -319,7 +319,7 @@ new_filter_blend_gaussian_blur (SPDocument *document, const char *blendmode, gdo
 SPFilter *
 new_filter_simple_from_item (SPDocument *document, SPItem *item, const char *mode, gdouble radius)
 {
-    NR::Maybe<NR::Rect> const r = sp_item_bbox_desktop(item);
+    NR::Maybe<NR::Rect> const r = sp_item_bbox_desktop(item, SPItem::GEOMETRIC_BBOX);
 
     double width;
     double height;
@@ -332,7 +332,7 @@ new_filter_simple_from_item (SPDocument *document, SPItem *item, const char *mod
 
     NR::Matrix i2d = sp_item_i2d_affine (item);
 
-    return (new_filter_blend_gaussian_blur (document, mode, radius, i2d.expansion(), i2d.expansionX(), i2d.expansionY(), width, height));
+    return (new_filter_blend_gaussian_blur (document, mode, radius, NR::expansion(i2d), NR::expansionX(i2d), NR::expansionY(i2d), width, height));
 }
 
 /**
@@ -349,7 +349,7 @@ modify_filter_gaussian_blur_from_item(SPDocument *document, SPItem *item,
                                       gdouble radius)
 {
     if (!item->style || !item->style->filter.set) {
-        //return new_filter_gaussian_blur_from_item(document, item, radius);
+        return new_filter_simple_from_item(document, item, "normal", radius);
     }
 
     SPFilter *filter = SP_FILTER(item->style->getFilter());
@@ -368,13 +368,13 @@ modify_filter_gaussian_blur_from_item(SPDocument *document, SPItem *item,
 
     // Determine the required standard deviation value
     NR::Matrix i2d = sp_item_i2d_affine (item);
-    double expansion = i2d.expansion();
+    double expansion = NR::expansion(i2d);
     double stdDeviation = radius;
     if (expansion != 0)
         stdDeviation /= expansion;
 
     // Get the object size
-    NR::Maybe<NR::Rect> const r = sp_item_bbox_desktop(item);
+    NR::Maybe<NR::Rect> const r = sp_item_bbox_desktop(item, SPItem::GEOMETRIC_BBOX);
     double width;
     double height;
     if (r) {
@@ -386,8 +386,8 @@ modify_filter_gaussian_blur_from_item(SPDocument *document, SPItem *item,
 
     // Set the filter effects area
     Inkscape::XML::Node *repr = SP_OBJECT_REPR(item->style->getFilter());
-    set_filter_area(repr, radius, expansion, i2d.expansionX(),
-                    i2d.expansionY(), width, height);
+    set_filter_area(repr, radius, expansion, NR::expansionX(i2d),
+                    NR::expansionY(i2d), width, height);
 
     // Search for gaussian blur primitives. If found, set the stdDeviation
     // of the first one and return.
@@ -457,6 +457,32 @@ void remove_filter_gaussian_blur (SPObject *item)
     }
 }
 
+bool filter_is_single_gaussian_blur(SPFilter *filter)
+{
+    return (SP_OBJECT(filter)->firstChild() && 
+            SP_OBJECT(filter)->firstChild() == SP_OBJECT(filter)->lastChild() &&
+            SP_IS_GAUSSIANBLUR(SP_OBJECT(filter)->firstChild()));
+}
+
+double get_single_gaussian_blur_radius(SPFilter *filter)
+{
+    if (SP_OBJECT(filter)->firstChild() && 
+        SP_OBJECT(filter)->firstChild() == SP_OBJECT(filter)->lastChild() &&
+        SP_IS_GAUSSIANBLUR(SP_OBJECT(filter)->firstChild())) {
+
+        SPGaussianBlur *gb = SP_GAUSSIANBLUR(SP_OBJECT(filter)->firstChild());
+        double x = gb->stdDeviation.getNumber();
+        double y = gb->stdDeviation.getOptNumber();
+        if (x > 0 && y > 0) {
+            return MAX(x, y);
+        }
+        return x;
+    }
+    return 0.0;
+}
+
+
+
 /*
   Local Variables:
   mode:c++