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Author SHA1 Message Date
sheaf 1e4bb4bddc implement a basic brush store 
* each stroke stores the brushes it uses by reference,
    so that one can interactively edit brushes
    and see the strokes be updated in real-time
  * when writing to a file, we retrive the brush code
    from the reference, and include that information statically
 2020-11-14 23:32:23 +01:00
sheaf 393ef6f06e Implement programmable brush framework 2020-11-12 17:34:46 +00:00
sheaf a5ba7dcd33 use haskell-gi bugfix to improve tab reordering 2020-09-26 00:21:49 +02:00
sheaf 58ca70c1bd optimise root-finding functions 
* use PrimArray to represent polynomials
  * add some strictness annotations
  * turn on some optimisation flags
  * use quadratic formula for quadratic polynomials
 2020-09-19 00:43:07 +02:00
sheaf eb8e7012aa curve dragging support 2020-09-18 19:17:40 +02:00
sheaf 40d10b6a8e add backend implementation of curve dragging 2020-09-17 05:47:53 +02:00
sheaf 2e9c437bd4 fix incorrect brush join computation 
* also add some curvature calculations (unused at the moment)
 2020-09-16 23:56:19 +02:00
sheaf 1c6f751a2b improve offset tangent calculation 2020-09-15 19:07:22 +02:00
sheaf 808e37b1b3 fix issue with incorrect subdivision in fit 
* was using `Max ( Arg t sq_dist )` instead of `Max ( Arg sq_dist t )`
 2020-09-14 06:28:35 +02:00
sheaf e3d920573d add debug mode to visualise fitting algorithm 2020-09-14 06:03:45 +02:00
sheaf 087c29aef3 fix time-travel issue in deletion code 2020-09-11 00:37:39 +02:00
sheaf dc11c1af15 add change descriptions for document history 
* fix issue with accelerator key press handler
  overriding the application's key press handler
  * fix not being able to close tabs when no document is active
 2020-09-10 21:50:35 +02:00
sheaf 7e8c2e10d1 add document history & undo/redo 2020-09-10 18:59:14 +02:00
sheaf 0a978b7c59 add hover indicator for points and guides 2020-09-09 01:23:25 +02:00
sheaf dc6602bb79 refactor ruler subdivision handling 2020-09-08 22:20:46 +02:00
sheaf 07c789ccc3 easier install instructions, using openblas 2020-09-08 17:49:47 +02:00
sheaf b608bed8b0 add installation instructions 2020-09-08 00:30:55 +02:00
sheaf a459467ed0 add parallelism for brush outline computation 
* also enable varying the fitting parameters (UI todo)
 2020-09-07 17:38:22 +02:00
sheaf 44c41d49e0 disable warnings for hmatrix dependency 2020-09-07 16:03:26 +02:00
sheaf d501fcb76a add ruler ticks 
* also includes some improvements to Cairo pixel alignment
 2020-09-07 15:44:08 +02:00
sheaf 777b894c06 fix accelerator key handling 2020-09-06 17:20:04 +02:00
sheaf e4779d8af2 update "toggle guides" menu text on toggle 2020-09-06 15:31:18 +02:00
sheaf 091c1603bb add toggle for showing guides 2020-09-06 05:32:03 +02:00
sheaf 3660cb8dce subdivide paths by double-clicking on them 
* still WIP:
    - path mode: does not correctly interpolate brushes
    - brush mode: does not propagate subdivision to other brushes
 2020-09-06 04:43:28 +02:00
sheaf 9a2f123895 fix incorrect selection mode for Shift 2020-09-06 01:06:44 +02:00
sheaf 031d72a69b create/move/delete guides: drag from ruler area 2020-09-06 00:40:56 +02:00
sheaf 930fa0ebf9 don't attempt to draw outline when brush is empty 2020-09-05 15:35:01 +02:00
sheaf a098eb6471 refactor document modification 
* the "modifyingCurrentDocument" now handles
    all the followup actions necessary after
    modifying the current document,
    such as updating the title bar
 2020-09-05 02:56:59 +02:00
sheaf 264fa8dff0 dynamic file tab close button behaviour 2020-09-04 22:51:47 +02:00
sheaf 86729cb462 update title and file tab upon change, close 2020-09-04 20:54:48 +02:00
sheaf 341a8ed0ca closing documents / removing file tabs 2020-09-03 05:57:08 +02:00
sheaf 5f3bbc891a add saving/loading 2020-09-03 00:53:08 +02:00
sheaf db4115c634 hook up menu to actions, + some refactors 2020-09-02 22:49:50 +02:00
sheaf 919acf4928 add accelerator labels to menu items 2020-09-02 15:58:00 +02:00
sheaf 7033578e20 refactor: separation of event handling and actions 2020-09-02 04:52:08 +02:00
sheaf 101d9515c0 update file tabs dynamically 2020-09-01 21:56:59 +02:00
sheaf 8a6b4f5391 encode/decode documents to JSON using waargonaut 2020-08-31 22:28:30 +02:00
sheaf 9c5f8b1198 use correct applicative operation for brush lerp 2020-08-31 01:59:14 +02:00
sheaf 9e73da9fff implement selection & drag-move in brush mode 2020-08-29 22:19:51 +02:00
sheaf dfa446254a adjust what is rendered in different modes 2020-08-29 20:50:02 +02:00
sheaf 9bde44ed42 fix brush stroke point order for open brush path 
* also: add some preset brushes
 2020-08-29 19:41:07 +02:00
sheaf 62bb1451c5 curve fitting: implement recursive subdivision 2020-08-29 18:26:11 +02:00
sheaf d4561ad549 use the correct tangent vector for stroke joins 2020-08-29 16:34:51 +02:00
sheaf 3916fe2656 compute and render brush stroke outlines 2020-08-29 03:03:29 +02:00
sheaf b3941a2834 use hmatrix for least squares solving 
* this fixes the convergence problems of cubic Bézier curve fitting
 2020-08-26 00:41:34 +02:00
sheaf f16ac3fa93 fitting a cubic Bézier to a sequence of points 
* WIP: current code exhibits convergence issues / instability
 2020-08-24 10:55:39 +02:00
sheaf 86a1426136 start implementing brush mode 2020-08-20 03:57:26 +02:00
sheaf e8c77befd6 split out stroke code to library 2020-08-19 23:34:43 +02:00
sheaf e044b1b06c stroking: compute offset given tangent vector 2020-08-19 17:41:15 +02:00
sheaf 107b27ebca implement deletion of selection 2020-08-19 05:28:47 +02:00