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Printing is only available in GTK versions >= 2.10. We can only embed the page setup dialog on GTK >= 2.18, so on a GTK version less than that, we must use a separate page setup dialog. In GTK, printing is usually done one page at a time, so also modify printing.c to allow printing of a single page at a time. Create a separate drawing API for drawing to the screen and for printing. Create a vtable for functions which need to be different depending on whether they were called from the printing or drawing API. When a function is called from the printing API, it is passed a separate instance of the frontend than if it were called from the drawing API. In that instance of the frontend, an appropriate vtable is available depending on whether it was called from the printing or drawing API. The low-level functions used for printing are enabled even if printing is not enabled. This is in case we ever need to use them for something other than printing with GTK. For example, using Cairo as a printing backend when printing from the command line. Enabling the low-level functions even when GTK printing is not available also allows them to be compiled under as many build settings as possible, and thus lowers the chance of undetected breakage. Move the definition of ROOT2 from ps.c to puzzles.h so other files can use it (gtk.c needs it for hatching). Also add myself to the copyright list. [Committer's note: by 'printing', this log message refers to the GTK GUI printing system, which handles selecting a printer, printing to a file, previewing and so on. The existing facility to generate printable puzzles in Postscript form by running the GTK binaries in command-line mode with the --print option is unaffected. -SGT]
27 lines
1.3 KiB
Plaintext
27 lines
1.3 KiB
Plaintext
This software is copyright (c) 2004-2014 Simon Tatham.
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Portions copyright Richard Boulton, James Harvey, Mike Pinna, Jonas
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Kölker, Dariusz Olszewski, Michael Schierl, Lambros Lambrou, Bernd
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Schmidt, Steffen Bauer, Lennard Sprong, Rogier Goossens, Michael
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Quevillon and Asher Gordon.
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation files
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(the "Software"), to deal in the Software without restriction,
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including without limitation the rights to use, copy, modify, merge,
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publish, distribute, sublicense, and/or sell copies of the Software,
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and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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