Bump poppler dep to 0.20.0

Bump poppler dep to 0.15.1 (see bug #1419263)

Bump poppler dep to 0.12.2 (see bug #1419263)

Revert unintended changes.

Add 'font-variant-xxx' to properties that should not be set on non-text elements.

Respect PDF image 'interpolate' value on import.

Bump Poppler dependency to 0.8.3

Fix build with poppler 0.29.0 (Bug #1399811)

Cleanup of unintialized and leaked values.

Fix build failure with poppler 0.26 (Bug #1315142)

Patch from comment 7. Fixes build with Poppler 0.26.

remove #pragma for 11 year old compiler that I cannot imagine anyone using at this point

Render zero-width PDF lines as 1px lines compensated for current transform. Partially fixes import of some LibreOffice charts. See LP bug #1283537

Improve code readability.

code cleanup (cppcheck)

Eliminate "unit-constants.h".

cppcheck

Fix building with Poppler 0.20 (LP: #1005565) Poppler >= 0.20 has a new internal API for errors and other miscellanea. As we are abusing these internal functionalities, they broke from time to time. Fixing it for now with a new conditional build flag. This fixes https://bugs.launchpad.net/inkscape/+bug/1005565

pdf import. set a default line width, see http://thread.gmane.org/gmane.comp.graphics.inkscape.user/14539

improved workaround to prevent GfxRadialShading from getting corrupted during copy operation (Bug 919176 comment 8)

pdf import. temporary workaround to prevent GfxRadialShading from getting corrupted during copy operation (Bug 919176 comment 8)

pdf import. improve upon rev 11094. transform four corners of bbox separately (Bug 919176)

pdf import. transform the bbox associated with a clip path (Bug 919176)

cppcheck

(cppcheck and janitorial tasks:) C-style casting to C++-style casting

initialisation

Warning and uninitialized data cleanup.

Fixing more broken and split doc comments.

Patch from Lubomir Rintel to fix build with Poppler 0.15.1

Fix build with poppler >= 0.12.2

Restore files that shouldn't have been touched. Grrr

When combining paths: clear the selection before deleting the original objects

fix build again for old poppler libs, by reverting a part of my previous commit

refactoring the snapping code (laying the groundwork for my next commit which reduces snap jitter)

using C++ const_cast instead of plain C-type cast

gcc warning cleanup mainly deprecated conversion from string constant to ‘char*’ and unused variables

noop: Refactor massive copy&paste of PdfParser::doShowText, in exchange for using three one-line-each #ifdef/#else blocks instead of one big one covering the whole function.

Fix to work with a changed api for 0.8.3's GfxFont::getNextChar(). many thanks to <tsdgeos>.

Merged from Poppler's Gfx.cc; Unset the font if it doesn't exist or we can not load it properly

noop: Remove a couple of redundant casts.

Avoid transforming a group with an already set clip-path

Fixed a typo and an off-by-one error

Require a pageBox in the constructor for GfxState so that we do not always need to specify a cropbox

Added the ability to set the precision of gradient mesh approximation in PdfParser

Make sure style is invalidated when setting fill/stroke color in text objects

Moved the code for updating the text matrix to where it belongs

Added initial transparency group and softmask support

Added a clip path stack for PdfParser and a node stack for SvgBuilder needed for mask support later

To ease testing reduced fallback operations' precision for now

Added support for the shading operator

Added image mask support

Reworked text state handling so that now SvgBuilder keeps track of the current text position

Reworked text output to create <text> nodes on text matrix changes rather than on every font update

Added tiling pattern support

Removed transform from <svg> and corrected matrix multiplication order in PdfParser::opConcat

Further development of the PDF import module: continued pruning of PdfParser.cpp, added basic text and image support and did some coding style adjustments.

Initial commit of native poppler-based PDF import.