Sync 2Geom to commit 5ee51c1c4f2066faa3e2c82021fc92671ad44ba4

Fix build (not pretty).

Use viewport when calculating filter region when filterUnits set to "userSpaceOnUse", fixes #229246.

DrawingContext: change variable names ct to dc (bug #1272073)

Comprehensive fix for the issues with disappearing filtered objects. Fixes #304407 and possibly a few other bugs. Revert incorrect _item_bbox changes from r12528.

Revert render svg:patern segment for fill and stroke

Fix the text filter issue and revert many changes.

Revert some agressive changes and allow a seperate filter bbox for FER, should be refactored at some point.

Remove setItemBounds and _item_bbox because aren't sensible, replace with bbox.

Remove compute drawbox and replace with area_elarge, make sure we use bbox

use visual bbox in calculation of filter area (Bug 1188336)

Move some code from filter primitives to cairo-utils.cpp. Fix bug in lighting primitives.

Add support for color-interpolation-filters = linearRGB.

Header tidying, suppress all gdk deprecation errors in gtkmm

Update 2Geom. Remove all use of NRRectL.

Filter background rendering now matches the SVG specification.

Correctly invalidate cache of objects with background-accessing filters

More generic handling of child type in DrawingItem. Fix clip object selection bug (LP #365458).

Initial autocache work

Rewrite NRArena -> Inkscape::Drawing. Call render and update methods on the Drawing rather than on the root DrawingItem.

Rewrite NRArenaItem hierarchy into C++

Replace direct use of Cairo contexts and surfaces in the rendering tree with wrappers which keep some extra information about the surface, amd NRRect and NRRectL use with Geom::Rect and Geom::IntRect. Should simplify implementing filter primitive subregions.

Simplify rendering of masked / clipped / translucent items. Handle nested clipping paths correctly.

Removed outdated and undesired "I'm in this cpp, so change your behavior" macros.

Remove more of libnr

Add handling filter primitive subregion to filter primitive classes. More correct handling of image placement in feImage filter primitive.

update to latest 2geom !

Super duper mega (fun!) commit: replaced encoding=utf-8 with fileencoding=utf-8 in all 1074 Vim modelines. The reason for this is that (a) setting the encoding isn't nice, and (b) Vim 7.3 (with modeline enabled) disallows it and pops up an error whenever you open any file with it ("invalid modeline"). Also corrected five deviant modestrings: * src/ui/widget/dock.cpp and src/ui/widget/dock.h: missing colon at the end * src/ui/dialog/tile.cpp: removed gratuitous second colon at the end * src/helper/units-test.h: removed gratuitous space before a colon * share/extensions/export_gimp_palette.py: missing textwidth=99 That's my geekiest commit yet.

Make nr_arena_invoke_render expect an already transformed context, to remove a limitation to integer translations imposed by NRRectL

Fix computation of drawbox for filtered, rotated items

Minor cleanups

Fix artifacts in Gaussian blur and other filters inadvertently introduced when fixing seams in per-pixel filters

Wholesale cruft removal part 1

Second half of image filter, probably not 100% correct

Color matrix filter. Fix arithmetic operator in feComposite

Gaussian blur

Smaller intermediate rendering regions

filterUnits and primitiveUnits are now actually read/set, percentages for primitiveUnits are still problematic though

Patch by Luca for 449709

Fix by Adib for 430804.

BUG 322116, PDF export does not use the highest quality for rasterized filter

Move filters into their own namespace Inkscape::Filters (from NR::)

switch nr-filter to 2geom

switch nr-filter to 2geom

Filter quality setting revised, seems to not crash when viewing filters.svg

Merge from fe-moved

From trunk

Merging from trunk

replace unnecessary exception catching with a check beforehand.

Patch so Inkscape will compile on Solaris 10 from LP https://bugs.launchpad.net/inkscape/+bug/245173

Fixed uninitialized data in rendering filter effects & colormatrix (bug 193936)

No more NRMatrix or NRPoint.

Applying fixes for gcc 4.3 build issues (closes LP: #169115)

Modified filter primitives' render method to use FilterUnits instead of Matrix

Fixed a rendering bug & crash when filtering empty objects

Improved handling bounding boxes and rotated/skewed coordinates in filters

Fixed blur not rotating with the object in some cases (bug 1762289)

boilerplate code for the remaining filters. My next commits will probably deal with setting default attribute values for these filters

boiler plate code for feTile

Added support for feMerge filter priitive

boiler plate code for feTurbulence: *reading attributes and setting default values same for some more attributes on convolve matrix filter alphabetical ordering on Makefile_insert and on nr-filter.cpp #includes

feImage boilerplate code.

DisplacementMap filter boilerplate code + renderer draft implementation. General setting of attributes and default values. renderer method is still not correct. Needs some more effort.

Added a missing link in making the filterRes attribute work

Patch from Felipe Sanches: support for feConvolveMatrix filter primitive

Patch from Jean-René Reinhard: support for feDiffuseLighting and feSpecularLighting filter primitives

First version of feComposite filter effect renderer

First version of feOffset support. Contains some rendering glitches.

Modified filter rendering area handling to better accommodate upcoming feOffset

Added support for in-parameter in filter primitives

Refactoring work for filter effects renderer initialization

Added renderer support for feBlend filter effect

(hopefully) fixed build on linux, added missing isnormal.h

commited Solaris 2.8 / gcc-3.2.3 fixes

Unions Are Evil! When pixblock size is TINY, it stores data right in the data.px field (as data.p) and clears it, so when read as data.px it yields NULL. This fixes the problems with the dropper tool (which uses tiny buffers)

Added bitmap transformer to fix blur with rotation and non-uniform scaling

handle the case of no filter primitives

fill in set methods to enable x/y/w/h

deal with the possible failure to create pixblock due to insufficient memory

Fixed banding problem when rendering filters

Object groups can be blurred. Blur slider updates when selection changes. Comments added/fixed.

Work on filters. spFilterPrimitive structure added. Blur slider updated. Fixed sp-object-repr.cpp typos

Added renderer support for accessing background image from filters

Added a bunch of comments to filter effects rendering code

Bicubic scaler added to filtering, allowing changes in filter resolution

fix properly. oops ^^

remove conversion warnings

Compiler error in NR::Filter fixed

Filter effects bounding box calculation makes use of area settings

Created NR::FilterSlot to handle pixblocks in rendering filters

svg-filters branch merged back to head