diff --git a/src/desktop-style.cpp b/src/desktop-style.cpp
index 95abdfa5bc6c04d4316b2e288d5d9a44399697c7..5685dc4d6502208c853848a1e6dbff5d5b1c525f 100644 (file)
--- a/src/desktop-style.cpp
+++ b/src/desktop-style.cpp
#include "style.h"
#include "prefs-utils.h"
#include "sp-use.h"
+#include "sp-feblend.h"
#include "sp-filter.h"
#include "sp-gaussian-blur.h"
#include "sp-flowtext.h"
}
}
+int
+objects_query_blend (GSList *objects, SPStyle *style_res)
+{
+ const int empty_prev = -2;
+ const int complex_filter = 5;
+ int blend = 0;
+ float blend_prev = empty_prev;
+ bool same_blend = true;
+ guint items = 0;
+
+ for (GSList const *i = objects; i != NULL; i = i->next) {
+ SPObject *obj = SP_OBJECT (i->data);
+ SPStyle *style = SP_OBJECT_STYLE (obj);
+ if(!style || !SP_IS_ITEM(obj)) continue;
+
+ items++;
+
+ //if object has a filter
+ if (style->filter.set && style->filter.filter) {
+ int blurcount = 0;
+ int blendcount = 0;
+
+ // determine whether filter is simple (blend and/or blur) or complex
+ for(SPObject *primitive_obj = style->filter.filter->children;
+ primitive_obj && SP_IS_FILTER_PRIMITIVE(primitive_obj);
+ primitive_obj = primitive_obj->next) {
+ SPFilterPrimitive *primitive = SP_FILTER_PRIMITIVE(primitive_obj);
+ if(SP_IS_FEBLEND(primitive))
+ ++blendcount;
+ else if(SP_IS_GAUSSIANBLUR(primitive))
+ ++blurcount;
+ else {
+ blurcount = complex_filter;
+ break;
+ }
+ }
+
+ // simple filter
+ if(blurcount == 1 || blendcount == 1) {
+ for(SPObject *primitive_obj = style->filter.filter->children;
+ primitive_obj && SP_IS_FILTER_PRIMITIVE(primitive_obj);
+ primitive_obj = primitive_obj->next) {
+ if(SP_IS_FEBLEND(primitive_obj)) {
+ SPFeBlend *spblend = SP_FEBLEND(primitive_obj);
+ blend = spblend->blend_mode;
+ }
+ }
+ }
+ else {
+ blend = complex_filter;
+ }
+ }
+ // defaults to blend mode = "normal"
+ else {
+ blend = 0;
+ }
+
+ if(blend_prev != empty_prev && blend_prev != blend)
+ same_blend = false;
+ blend_prev = blend;
+ }
+
+ if (items > 0) {
+ style_res->filter_blend_mode.value = blend;
+ }
+
+ if (items == 0) {
+ return QUERY_STYLE_NOTHING;
+ } else if (items == 1) {
+ return QUERY_STYLE_SINGLE;
+ } else {
+ if(same_blend)
+ return QUERY_STYLE_MULTIPLE_SAME;
+ else
+ return QUERY_STYLE_MULTIPLE_DIFFERENT;
+ }
+}
+
/**
* Write to style_res the average blurring of a list of objects.
*/
} else if (property == QUERY_STYLE_PROPERTY_FONTNUMBERS) {
return objects_query_fontnumbers (list, style);
+ } else if (property == QUERY_STYLE_PROPERTY_BLEND) {
+ return objects_query_blend (list, style);
} else if (property == QUERY_STYLE_PROPERTY_BLUR) {
return objects_query_blur (list, style);
}