Commit Graph

782 Commits

Author SHA1 Message Date
jean-pierre charras 10990f8e81 Fix a minor compil and a minor Coverity warnings. 2021-02-26 15:33:50 +01:00
Wayne Stambaugh 509b1b7141 Fix for Coverity issue 157131.
Don't allow exception to be thrown from OPENGL_COMPOSITOR dtor.
2021-02-23 19:09:41 -05:00
Seth Hillbrand 507ca9bc73 Add DPI scaling to KIPLATFORM
GTK needs to check current scaling but wx doesn't provide this
functionality in 3.0, so we can bypass by going straight to the source.
2021-02-22 17:38:27 -08:00
Wayne Stambaugh be8327bd54 GAL memory allocation fixes.
Vertex memory allocation uses malloc and realloc without checking the
result.  Throw exceptions that can be caught in the DoRepaint() method
in EDA_DRAW_PANEL_GAL when malloc and realloc return a null pointer.
2021-02-22 08:15:09 -05:00
Marek Roszko 907e282347 Silence some msvc warnings
- exception variables that were unused
- RAYSEG2D improperly foward declared with class instead of struct
- unused vars
2021-02-20 11:58:55 -05:00
Wayne Stambaugh b959378d58 Attempt to fix Coverity issue 168705. 2021-02-16 17:29:12 -05:00
Wayne Stambaugh e7227a4f21 GAL code cleaning. 2021-02-16 17:25:27 -05:00
Jeff Young 60d4d5b846 Scale down netnames on tracks so overbars fit.
Also fixes a bug where the overbar ignored the color opacity.

Fixes https://gitlab.com/kicad/code/kicad/issues/7524
2021-02-14 12:15:26 +00:00
Seth Hillbrand 3d920c4088 Fix tab spacing to use widest character as ref
We had been using each 4th column of spaces.  But we needed an absolute
spacing rather than relative to the existing text to match spacing
between the input text box and our stroke font
2021-02-09 09:44:00 -08:00
Jeff Young f6aa25df52 Make bitmap text measuring cognizant of overbars.
Also adds fallback for when text contains super- or subscript.

Fixes https://gitlab.com/kicad/code/kicad/issues/6846
2021-02-07 13:59:53 +00:00
Marek Roszko 9770ba9739 Fix odd/even check in cairo. Modulo 1 is always 0 on ints. 2021-01-31 11:59:49 -05:00
Seth Hillbrand 945faba586 Wrap CTOR in try/catch for context errors 2021-01-28 10:55:27 -08:00
Seth Hillbrand ffb3748cfc Don't crash when getting multiple wx calls
Multiple size calls will assert trying to re-lock the GAL context.  Just
skip the second one.
2021-01-09 13:05:58 -08:00
Jeff Young 5888d376a7 Handle special cases for ending overbar text.
Fixes https://gitlab.com/kicad/code/kicad/issues/6695
2020-12-10 18:38:31 +00:00
Jeff Young 0a7ef25453 Replace STROKE_FONT performance fix, this time with correct type.
Also this time with a fixed Cairo implementation and an implemented
BASIC_GAL implementation.

Fixes https://gitlab.com/kicad/code/kicad/issues/6447
2020-11-20 11:24:52 +00:00
Marek Roszko 1db882ed1b Partially revert 876b87b64e
This broke all text objects (for me on Windows at least)
2020-11-19 19:34:54 -05:00
Jeff Young 876b87b64e Minor performance fixes for PCBNew selections. 2020-11-19 17:23:02 +00:00
Ian McInerney 11e6cac42b Introduce EGL backend support for the OpenGL canvas
wxWidgets 3.1.5+ on Linux will compile with the Wayland EGL
canvas as the backend instead of the X11 backend. This requires a
version of GLEW compiled with the proper EGL defines and a different
header/code for certain parts that are X11 GLEW specific.

This introduces an in-tree version of GLEW that will be built with the
GLEW_EGL flag then statically linked into the KiCad executables when
EGL support is needed.
2020-11-11 00:41:02 +00:00
Marek Roszko 2d33b23530 Fix formatting 2020-11-07 09:51:09 -05:00
Marek Roszko df49e0bb0d Don't leave dangling pointers 2020-11-07 09:48:59 -05:00
Roberto Fernandez Bautista fe415c4134 Check GLEW functions exist before calling them
Fixes https://gitlab.com/kicad/code/kicad/-/issues/6235
2020-10-30 20:17:27 +00:00
Roberto Fernandez Bautista 33385d0bb0 Combine return statements in OPENGL_GAL::CheckFeatures 2020-10-30 20:17:27 +00:00
jean-pierre charras 73c7154891 Fix another Coverity warning. 2020-10-27 14:16:38 +01:00
Jeff Young 66e3e12a9d Allow screen rendering to be maxError out from WYSIWYG.
Correcting the error is more trouble than it is worth, and anyway
might not be corrected exactly the same way plotting/filling/DRC
is corrected anyway.
2020-10-24 19:39:19 +01:00
jean-pierre charras cc81d97f78 Opengl DrawArcSegment(): refinements for a better look of control points.
Use a segment count multiple of 2, because we have a control point on the
middle of the arc, and the look is better if it is on a segment junction
because there is no arc to segment approx error
2020-10-24 17:26:44 +02:00
jean-pierre charras 6d12a0c95b OPENGL_GAL, DrawArcSegment(): do not modify the radius of arc.
The radius correction does not fix correctly approximation errors,
and creates serious issues for thin arcs:
- control point outside the arc
- HitTest active area outside the arc shown on screen
- Cairo and opengl gives different arc positions.
- the formula used in radius correction is probably incorrect.
2020-10-24 16:29:26 +02:00
Jeff Young 58c006bc45 Register properties for ARC elements so we can get their netclass.
Also improves GAL arc drawing and polygonization.

Fixes https://gitlab.com/kicad/code/kicad/issues/6039
2020-10-23 14:27:36 +01:00
Seth Hillbrand ae1004776f Correct Cairo GAL dot rendering
This matches the OpenGL dot rendering.  Patch from dsa-t with minor
changes

Fixes https://gitlab.com/kicad/code/kicad/issues/5832
2020-10-21 12:31:21 -07:00
Jon Evans c388bf0f92 Update default color theme
Blue is the new green :)

ADDED: built-in read-only color themes support
Classic theme is still available for those who love it

Fixes https://gitlab.com/kicad/code/kicad/-/issues/1991
Fixes https://gitlab.com/kicad/code/kicad/-/issues/4259
2020-10-18 14:12:54 -04:00
Marek Roszko ae6900e7d7 Suppress the opengl test from generating "ghost frames" on Windows which appear and quickly disappear 2020-10-18 13:48:45 -04:00
jean-pierre charras f6b4b66a86 Avoid include wx/wx.h in many files that do not actually use this include.
Including wx.h includes the full set of wxWidgets include files, that is not good,
and can create some conflicts with some Windows headers on msys2.
2020-10-18 18:21:34 +02:00
Jeff Young 2574a8d71e Update GAL observers for all frames, not just calling frame.
Also don't rely on UpdateScaleFactor to do it as it only does it
if the scale factor changed.

Fixes https://gitlab.com/kicad/code/kicad/issues/5621
2020-10-09 21:30:09 +01:00
Jeff Young cc617b715f Implement hypertext links for intersheet references. 2020-10-02 21:18:34 +01:00
Mikolaj Wielgus 2d7a2a9658 Fix grid dots not appearing due to below-unity drawing width
Fixes https://gitlab.com/kicad/code/kicad/-/issues/5630
2020-09-29 01:23:39 +02:00
Seth Hillbrand 76e44c2f4b pcbnew: Really deal with missing segments this time
The OpenGL missing segments (when small) are due to rounding in larger
coordinates.  The GAL shader uses floats to represent int32 values for
position and distance.  Thus, at larger coordinates, the smaller integer
values cannot be represented accurately.  This tests for the rounding
error and, if it exists, draws a plain circle instead

Fixes https://gitlab.com/kicad/code/kicad/issues/5751
2020-09-21 16:59:31 -07:00
Seth Hillbrand f493e270ea ADDED: Menu option to enable/disable snap to grid
You can now enable and disable snap to grid when drawing/editing across
all apps.  You can also tie snap to grid to the visibility of the grid
to allow rapid enable/disable via grid display.
2020-09-10 20:09:30 -07:00
Jeff Young a0fbb79fd0 Tighten up the overbar spacing slightly.
Fixes https://gitlab.com/kicad/code/kicad/issues/5544
2020-09-08 11:02:09 +01:00
Seth Hillbrand c1a97fc0c3 GAL: Revision to 80af7b3158, allow LIB_POLYLINE
LIB_POLYLINE has a filled/not completely stroked draw mechanism that
allows stroking singular lines that will skip the fill
2020-08-21 16:02:13 -07:00
Seth Hillbrand 80af7b3158 Fix GAL check to account for shared function
Cairo Polyline and Polygon draw functions share a common routine.  While
Polygons must have 3 points to allow triangulation, a polyline (like our
text) need only have 2
2020-08-21 15:18:25 -07:00
Seth Hillbrand 7fc222db98 GAL: Check that polygons have at least 3 points
This resolves a crash when passing an empty polygon and alerts debug
users to possible generation cases when bad polygons are created.

Thanks for Frans Zellman
(https://gitlab.com/kicad/code/kicad/-/merge_requests/365) for
identifying the issue.
2020-08-21 09:36:41 -07:00
Wayne Stambaugh ede39780e2 Remove all debugging output that cannot be disabled.
The use of printf, wxLogDebug, and std::err/std::out causes excessive
debugging output which makes finding specific debugging messages more
difficult than it needs to be.

There is still some debugging output in test code that really needs to
be moved into a unit test.

Add debugging output section to the coding policy regarding debugging
output.
2020-08-18 10:17:36 -04:00
Seth Hillbrand ab58b67842 Adding triangulation viewing to AC
This adds a helper routine to visualize the quality of our
triangulation.  It also renames an excessively long variable name for
the arc editor
2020-08-12 06:22:45 -07:00
Ian McInerney 5684708b22 Remove shadowing linewidth member from the Cairo GAL
The base GAL has the linewidth property already, and its
accessor will only return the base version. This was causing
problems with the Cairo printing GAL, since that setter wasn't
using the base class version. Also, this removes the print-specific
setter, since the actual setting of line width shouldn't be done
there and is instead done where the drawing happens.

Fixes https://gitlab.com/kicad/code/kicad/issues/5089
2020-08-10 22:16:11 +00:00
mntmn bf60482b5c OpenGL GAL: support fallback without overlay buffer
On platforms with limited framebuffer attachments, like GC7000L
driven by the open source etnaviv driver, we can still use
GPU acceleration by drawing directly to the main buffer.

EDA_DRAW_PANEL_GAL::onPaint checks if an overlay target is
available in the GAL, and if not, redraws the whole view if the
overlay target should be dirty.

Clearing of the overlay target is a no-op if there is no overlay
buffer.

Signed-off-by: Lukas F. Hartmann <lukas@mntre.com>
2020-08-07 13:27:47 +00:00
jean-pierre charras 2d9b0b255b Better fix for OPENGL_GAL::DrawSegment() than initial commit 294dab.
segments having a length <= 1 internal unit are not drawn  in opengl gal.
So these segments are drawn as circle.
2020-07-31 15:41:21 +02:00
Seth Hillbrand 294dabf640 GAL: Fix issue with small tracks being hidden
When drawing segments that are smaller than the segment width, OpenGL
did not use realistic values, leading to hidden, small tracks.  Instead,
we set the track to only draw a segment when the length is at least 1
radius long (so that we can see the full semi-circle at the track end)

Fixes https://gitlab.com/kicad/code/kicad/issues/5009
2020-07-30 15:11:39 -07:00
Urja Rannikko aa7ab46a06 GAL: Round the incoming mode parameter in fragment shader
This fixes some letters being randomly boxes and some circles
being randomly triangles on the Mali T760.
2020-07-17 20:24:18 +00:00
Urja Rannikko 65ceeebc71 GAL: Remove dead code regarding SHADER_LINE_B in the fragment shader
The only test for it was only called from a function
that's called if the mode is SHADER_LINE_A, not B.
2020-07-17 20:24:18 +00:00
jean-pierre charras 9f20c61fa7 Remove creation on the fly of a wxPaintEvent instance (fix previous commit). 2020-07-15 14:56:35 +02:00
jean-pierre charras 6366aa3ede Remove creation on the fly of a wxPaintEvent instance (final step).
This is not allowed in 3.1.4 wxWidgets.
2020-07-15 12:58:43 +02:00
Jon Evans a94a81b9a8 GAL: Handle text opacity in OpenGL
Vertex alpha was being dropped in the font shader
2020-07-12 11:16:28 -04:00
Jon Evans 5d118b0700 More visibility settings infrastructure
ADDED: Three-state high contrast mode action
ADDED: Save contrast mode in local settings

Also some initial infrastructure for layer presets
2020-07-11 21:59:07 -04:00
Qbort f3f17401dc Fix OPENGL_GAL initialization sequence
- New public static function OPENGL_GAL::CheckFeatures() gets called in EDA_DRAW_PANEL_GAL::SwitchBackend() before switching to OPENGL_GAL
- Moved all OpenGL feature checks from OPENGL_GAL constructor to OPENGL_GAL::init()

Fixes https://gitlab.com/kicad/code/kicad/-/issues/4714
2020-07-04 10:54:30 +00:00
Seth Hillbrand a210fd570f Set VSYNC to adaptive (if available)
Swap syncs can limit the redraw rate as the screen waits for previously
issued syncs.  Setting this to -1 allows for adaptive swapping
(resorting to unsynced if it falls behind) if it is supported by the
card but will fall back to unsynced (0) if the adaptive is not
supported.

Fixes https://gitlab.com/kicad/code/kicad/issues/4226
2020-07-03 13:27:48 +00:00
Lukas F. Hartmann f5842156a5 GAL: disable glCopyBuffer for etnaviv vendor 2020-06-28 17:01:26 +00:00
Ian McInerney 5b3d947b7e Fix initialization order fiasco with colors
The legacy color refs are needed by the COLOR4D constructor
when constructing a static variable, so they can't be static
themselves.
2020-06-19 17:05:18 +01:00
Ian McInerney 5649558cff Move DPI_SCALING into the GAL from common
It should be owned by the GAL, since it is used
with the OpenGL canvas infrastructure.
2020-06-19 17:02:46 +01:00
Jon Evans e91b9f6dfb Rip out the unused leftovers of the old color system 2020-06-18 22:32:14 -04:00
Ian McInerney ab83c86210 Remove the platform-specific GetBackendScalingFactor from HIDPI_GL_CANVAS
The scaling factor stored inside the canvas is created by a DPI_SCALING
helper, which will call the platform-specific functions if no user scaling
is specified. This change only affects OSX and Retina displays, so this
now also allows custom scaling to be used on OSX if desired (although it
shouldn't be needed, since wx has detection for it in 3.0.4).
2020-06-05 00:15:54 +00:00
Jeff Young 1fb51d29ab Reverse interpretation of triple-tilde.
Fixes https://gitlab.com/kicad/code/kicad/issues/4396
2020-05-11 22:56:09 +01:00
Simon Richter 5acee1962e Add missing include
We need <algorithm> for std::max
2020-05-02 11:19:04 +00:00
jean-pierre charras 3e287160d8 gal/opengl: better message for checkGlError() unknown error sub-type
in GL_INVALID_FRAMEBUFFER_OPERATION main error.
The returned error code is now printed in the error message.
2020-04-27 14:46:53 +02:00
Jeff Young 2b6089240a Change super/subscript syntax to ^{foo} and _{foo}. 2020-04-18 21:04:41 +01:00
Jeff Young b067e441c7 Show/hide sheet colors when flipping override flag. 2020-04-10 00:35:17 +01:00
Jon Evans 23c1baae8e Defer image surface destruction until next paint
Fixes #4043

(cherry picked from commit dbf786e456f2792476791caf9dadfeb43e9ab383)
2020-04-02 14:36:57 -04:00
Jeff Young fb00ca12d6 Performance enhancements for stroke font initialisation. 2020-03-07 18:52:30 +00:00
Marcus Comstedt 349c0e1a14 gal/opengl: Fix shader link state check
The old code caused a bool (size 1) to be overwritten by a GLint (size
4) causing undefined behaviour.

Fixes https://gitlab.com/kicad/code/kicad/issues/3981
2020-03-03 21:47:43 +00:00
Marcus Comstedt 55ac575a88 Cairo GAL: fix incorrect use of pixman formats
Fixes https://gitlab.com/kicad/code/kicad/issues/3970
2020-03-03 18:07:30 +00:00
Jon Evans 712ae5a953 Check if scaling factor has changed when top-level window is moved
Fixes #2592
2020-02-22 01:25:08 +00:00
Jon Evans e59a3d981e Implement a new settings framework across all of KiCad
CHANGED: Settings are now stored in versioned sub-directories
ADDED: First-run dialog for migrating settings from a previous version
CHANGED: Settings are now stored as JSON files instead of wxConfig-style INI files
CHANGED: Color settings are now all stored in a separate settings file
CHANGED: The symbol editor and footprint editor now have their own settings files
CHANGED: Color settings are no longer exposed through BOARD object
CHANGED: Page layout editor now uses Eeschema's color scheme

Settings are now managed through a central SETTINGS_MANAGER held by PGM_BASE.
Existing settings will be migrated from the wxConfig format on first run of each application.
Per-application settings are now stored in one class for each application.
2020-02-19 23:44:56 -05:00
Jeff Young a1c2abaff5 Get rid of line-weight component of overbar height.
It's not really necessary and it messes up text highlighting.

Fixes https://gitlab.com/kicad/code/kicad/issues/3680
2020-02-03 19:35:48 +00:00
jean-pierre charras 79e7a27492 Fix a few Coverity warnings. 2020-02-02 08:55:24 +01:00
jean-pierre charras ad3c4b37ab Fix a few coverity warnings 2020-02-01 15:15:51 +01:00
Jeff Young 5e5edd03f6 Implement super- and subscript printing and plotting for eeschema. 2020-01-10 22:32:49 +00:00
Ian McInerney 13b6028e1b Refactor all math into a new kimath library
* Split up the thirdparty code into the thirdparty folder (#3637)
* Create a new kimath static library containing all the math functions

This is part of cleaning the build system for #1906.
2020-01-07 17:12:59 +00:00
Ian McInerney 6faa2188ed Silence warnings on MacOS about OpenGL deprecation
Apple has apparently deprecated OpenGL and replaced it with
their Metal API. It still works for now though.
2019-12-28 16:05:03 +00:00
Seth Hillbrand 4f4bb96f2b Suppress false warning of uninit var 2019-12-06 06:27:47 -08:00
Seth Hillbrand df75167e14 Fix ordering warning and init error for clang
The glyphs and bb pointers were reversed.
2019-12-06 04:33:50 -08:00
Seth Hillbrand ac92afcf13 Clean up compile warnings
Ratsnest did not need a reserve and then iterative emplace.  Instead, we
use resize().  Stroke font gets private vars initialized and kiway
variables that are only used in debug builds are properly scoped for
releases as well
2019-12-05 20:05:21 -08:00
Seth Hillbrand b5f021ff9f Cleanup: Replace push_back with emplace_back
In cases where we create a new item and immediately push into a
container, the emplace idiom is faster and more efficient.
2019-12-05 13:41:21 -08:00
Seth Hillbrand 6f8b399c5f Replace unused resize() call
Calling resize(size()) will only zero out elements that exist above the
vector size().  The memory is not freed in this case.  shrink_to_fit()
will accomplish this action (at the discretion of the library)
2019-12-05 13:21:48 -08:00
Seth Hillbrand a2edf9c442 Unified update to C++14 std::make_unique
This update replaces the existing uses of unique pointer creation with
the C++14 std::make_unique call that provides proper memory release in
event of an exception.
2019-12-05 10:43:55 -08:00
Seth Hillbrand 65ef8c1894 StrokeFont: Reserve rather than resize
Minor speedup by not double-initializing the stroke font vector.
2019-12-04 16:36:06 -08:00
Jeff Young 581dc81358 Performance optimizations for the stroke font. 2019-12-03 17:45:26 +00:00
Jeff Young 89ace3b0d0 Apply the overbar fixes from the stroke font to bitmap text.
Fixes: lp:1852037
* https://bugs.launchpad.net/kicad/+bug/1852037
2019-11-18 11:36:30 +00:00
qu1ck 695caa7dfa Make stroke font bbox calculation consistent with rendering
When rendering tabs we count them as 4 + 1 space but when calculating
bbox it is 4 spaces + '?' width, which is a bit wider.
2019-11-11 20:16:59 -08:00
Seth Hillbrand ed77f522dd Align text to 4th column correctly
Text mod calculation was off by one in alignment
2019-11-11 20:16:59 -08:00
Jeff Young 55432d9685 Fix issue with overbar processing.
Fixes: lp:1852037
* https://bugs.launchpad.net/kicad/+bug/1852037
2019-11-11 13:05:56 +00:00
Jeff Young d6e0ec2f24 Fix a couple of edge cases in text drawing.
Don't accidentally flip the x-axis glyph size when resetting after
a sub- or superscript.

Special-case three tildes in a row.  (We could also do this for
sub- and superscript, but does anyone really need a superscript
^ or a subscript?

Fixes: lp:1851657
* https://bugs.launchpad.net/kicad/+bug/1851657

Fixes: lp:1851880
* https://bugs.launchpad.net/kicad/+bug/1851880
2019-11-09 20:22:44 +00:00
jean-pierre charras 01553a6bd1 FIX: add parameter to GAL::DrawCurve to control the curve to polyline conversion. Cairo supports curves, but not Opengl, that needs a conversion to polyline. This control allows optimization in conversion 2019-11-09 11:41:29 +01:00
jean-pierre charras 943858fd67 FIX: Bezier curves: replace previous algorithm to convert the curve to segments. In some cases it was not working well. Opengl was using an other algo (using the curve properties to create segments) Now only the OpenGL algo is used, with optimization to reduce the number of segments. 2019-11-09 11:41:29 +01:00
Jeff Young 35c8d64f98 Add super- and subscript support to Eeschema.
Note that since the markup might exist for other reasons, it has
to be turned on with a preference setting.  (It goes through a set
of bitflags so the same architecture can be used for other markup
structures that we might want to support in the future.)

Note also that this is more about engineering nomenclature than
visual formatting.  In that respect it's more similar to overbar
than italic or bold.
2019-11-05 17:22:51 +00:00
Seth Hillbrand 6084614371 GAL: Use vector for stroke elements
deque structures have higher overhead than vectors.  Not usually
problematic, but with hundreds of thousands of characters each with only
a few strokes, the overhead becomes dominant.
2019-10-18 21:48:58 -07:00
jean-pierre charras d77ba30a95 Replace __WXDEBUG__ (improperly used) by DEBUG in some #define.
__WXDEBUG__ comes from a build option of wxWidgets,
and is not related to a Debug versus Release Kicad build.
2019-10-14 11:17:38 +02:00
jean-pierre charras 281d77f6b3 Cairo print, on GTK: use a better DPI definition to avoid artifacts rendering (GTK specific)
Previously, a 600 DPI was used to set device scale (can create minor visible rounding issues).
Using now 4800 DPI to reduce these rounding artifacts.

Fixes: lp:1845229
https://bugs.launchpad.net/kicad/+bug/1845229
2019-09-25 18:36:38 +02:00
Seth Hillbrand c3274e15f2 cairo: Minor fixup in delete call 2019-08-28 20:25:27 -07:00
Seth Hillbrand c3e07a5886 Cleaning Cairo GAL
Removed extra allocations that were not used.
Removed unneeded shared pointer
Corrected storage type from RGB to ARGB
2019-08-28 19:29:47 -07:00
Jeff Young a25368cc6b Improve spelling.
The groundwork here is thanks to kunda1.

Fixes: lp:1831510
* https://bugs.launchpad.net/kicad/+bug/1831510
2019-08-20 19:14:05 +01:00
Ian McInerney 920120864f Fix initialization of COLOR4D statics
Just declaring as static const would give an initialization order
fiasco since they were being used to initialize other statics.
2019-08-06 10:06:10 -07:00
Jeff Young 5503727d3d Fix some placement bugs with selection haloes on text.
Fixes: lp:1838841
* https://bugs.launchpad.net/kicad/+bug/1838841
2019-08-03 17:20:54 -06:00
Simon Richter 884ae5a7ff Work around missing min/max in Windows headers
Windows headers assume min/max to be macros, but we set NOMINMAX to hide
the macro definitions. This pulls in an alternative implementation.
2019-07-17 08:10:47 -04:00
Seth Hillbrand 541d4358b8 Handle tabs to align text visually
This processes the \t character to place the next character aligned with
the next 4-space visual column.

Fixes: lp:1769193
* https://bugs.launchpad.net/kicad/+bug/1769193
2019-07-05 12:44:21 -07:00
jean-pierre charras 63eb552e0a Fix issue in cairo_gal when drawing a 360 deg arc (in fact a circle).
It was due to a angle normalization between -360 and 360 degrees.
So, in arcs, if the start angle and end angle diff is n*360 deg,
this normalization gives start angle = end angle.
The fix forces end angle = start angle+360deg in this case.

Fixes: lp:1832096
https://bugs.launchpad.net/kicad/+bug/1832096
2019-06-09 11:06:00 +02:00
Jeff Young 296ec66796 Cosmetic cleanup in preference panels. 2019-06-01 16:29:12 +01:00
Jon Evans b578f8b362 Fix infinite loop in grid initialization, Cairo edition 2019-05-31 20:51:23 -04:00
Jeff Young 7553cc2651 Clean up some dangling legacy odds and ends. 2019-06-01 01:17:46 +01:00
Jeff Young c71c1d4d1a Prevent infinite loop when grid size not defined. 2019-06-01 00:17:04 +01:00
Ian McInerney 45f10fcff1 gal: Decoupled X and Y grid step sizes
Made the X and Y step sizes for the grid separate in the GAL.

Cleaned up the types inside the DrawGrid functions.

Fixes: lp:1821416
* https://bugs.launchpad.net/kicad/+bug/1821416
2019-05-28 20:07:45 -07:00
jean-pierre charras 533fdcf00a Cairo GAL: fix incorrect arc position in mirror mode.
the previous fix (2e43c6c64e) did not really work.
Add also comments to a few not yet documented methods.

Fixes: lp:1822772
https://bugs.launchpad.net/kicad/+bug/1822772
2019-05-08 14:24:26 +02:00
jean-pierre charras 2e43c6c64e Cairo GAL: fix incorrect arc position in mirror mode.
It happens in print mode and also when the Pcb view is flipped.

Fixes: lp:1824720
https://bugs.launchpad.net/kicad/+bug/1824720

Fixes: lp:1822772
https://bugs.launchpad.net/kicad/+bug/1822772

Fixes: lp:1823147
https://bugs.launchpad.net/kicad/+bug/1823147
2019-05-06 11:28:14 +02:00
John Beard fcc4a84e0e GAL: add some trace to GAL display options config
This can be helpful when tracing where certain configurations
come from (some apps load from other apps' config basenames).
2019-04-27 14:57:14 +01:00
John Beard 15bba27406 BITMAP_BASE: Add const image data accessor
This allows a const BITMAP_BASE to expose const image
data. This is currently done with const_casts, which is
"OK", only as long as the source image is not declared
const, in which case it's undefined behaviour.

Also immediately dereference the pointer to a reference
if it's not checked to make the non-null requirements
explicit at the point of access.
2019-04-24 17:31:22 +01:00
John Beard ab2281d26f GAL opts: move config reading into GAL_DISPLAY_OPTIONS
Move repeated GAL config reading routines into GAL_DISPLAY_OPTIONS.
THe app-level config is in here already, do the same for the
common config.

This means that the configs are loaded consistently, which fixes
the symbol-chooser preview window, which previously didn't use the
same config routine as other GAL canvases.

Future work could move these functions to free functions that
act on the public interface of GAL_DISPLAY_OPTIONS to avoid
GAL_DISPLAY_OPTIONS having to know about wxConfig and wxWindow.

Fixes: lp:1824524
* https://bugs.launchpad.net/kicad/+bug/1824524
2019-04-12 16:08:11 +01:00
Seth Hillbrand db0523626c GAL: Deal with thick circles
Both Cairo and OpenGL had issues (different, though) with circles that are
thicker in line width than they have radius.  This corrects the OpenGL
implementation (radius is calculated to the outer edge) as well as Cairo
(line width needs to be clamped to twice the radius)

Fixes: lp:1822765
* https://bugs.launchpad.net/kicad/+bug/1822765
2019-04-02 17:19:20 -07:00
John Beard 567bdd9b9d Add configuration of Hi-DPI canvas scaling in OpenGL
First, add automatic detection of toolkit DPI scaling options. For now, this
is, in order,

* Check the GDK_SCALE option under GTK+ (users can set this to force the scaling)
* Check the value from WX's GetContentScalingFactor(). This will start to work
  correctly from WX 3.1 and GTK+ 3.10.

Then, add a user-settable override in the main prefs panel, next to the icon
scaling. This is independent of the icon scaling options.

DPI handling is performed in a standalone class, so they can be shared between
the prefs UI and the OpenGL backend easily. Also means Cairo could use the same
interface in future.

Also adjust the OpenGL grid drawing code to use the computed scale factor,
which avoids over-thick grids in scaled environments (the user can manually
thicken the grid if wanted).

Fixes: lp:1797308
* https://bugs.launchpad.net/kicad/+bug/1797308
2019-03-25 15:00:55 +00:00
jean-pierre charras fb0b1f2617 Print on Linux: use 600 DPI instead of the default 72 DPI (noticeable in Pcbnew) 2019-03-17 17:21:32 +01:00
jean-pierre charras 140abd3952 Pcbnew: fix missing vertical grid lines in flip board view
Fixes: lp:1818154
https://bugs.launchpad.net/kicad/+bug/1818154
2019-03-01 11:09:40 +01:00
Seth Hillbrand 269f420f8d OpenGL: Create shaders for each GL
Fixes: lp:1817284
* https://bugs.launchpad.net/kicad/+bug/1817284
2019-02-25 09:31:42 -08:00
jean-pierre charras 8ad15b1d66 Symbol editor: fix issues related to axis not shown.
In Symbol editor, axis are always shown. However after switching the backend, axis were no longer drawn.
In Cairo engine, fix a bug preventing axis to be shown.
2019-02-24 12:56:17 +01:00
Seth Hillbrand 30612ca62d grid: Set grid to use integer pixels
Each dot is an integer number of pixels wide, so supporting 0.5 width
steps no longer makes sense.  We round up the existing settings to the
nearest integer and only allow integers in the dialog.

Fixes: lp:1816748
* https://bugs.launchpad.net/kicad/+bug/1816748
2019-02-23 19:27:45 -08:00
Seth Hillbrand 82cbe9c995 cairo: Don't adjust grid point size
We shouldn't adjust the pixel size of the grid based on alignment in
GAL.  This creates artifacts on the screen at different zoom levels.
The pixel width is fixed by grid size preference

Also clean a left-over debug statement

Fixes: lp:1817377
* https://bugs.launchpad.net/kicad/+bug/1817377
2019-02-22 15:31:27 -08:00
Seth Hillbrand 2305c5458e cairo: Prevent arch shaking in pcbnew
Arc pixel adjustment needs to be limited to +/-1 pixel.  But making this
adjustment to nearby points and then using the projection to correct the
center point accumulates errors that are large for angles near 0 and
near 360.  This is a compromise that aligns _most_ arcs and provides
stable generation for all angles.

Fixes: lp:1817226
* https://bugs.launchpad.net/kicad/+bug/1817226
2019-02-21 19:59:34 -08:00
Seth Hillbrand dae7b03465 gal: re-enable arc outline mode
Fixes: lp:1816373
* https://bugs.launchpad.net/kicad/+bug/1816373
2019-02-21 10:52:54 -08:00
Seth Hillbrand 066b1782bb cairo: Fix grid display
Grid points were uneven in Cairo compared to OpenGL.  This standardizes
the functions for grid types and simplifies the code
2019-02-21 10:49:56 -08:00
Seth Hillbrand 235f2c7b39 cairo: Fix dotted grid color
Fixes: lp:1816774
* https://bugs.launchpad.net/kicad/+bug/1816774
2019-02-20 06:30:19 -08:00
Seth Hillbrand 203486638b Cleanup and clarify Cairo code 2019-02-19 20:51:11 -08:00
Seth Hillbrand 7d1a5c425c Cairo: Treat no stroke as an even line width
Also protect against 180° angle issues in arcs
2019-02-18 18:00:38 -08:00
Seth Hillbrand 467d37e3f0 cairo: Fix pcbnew arc drawing
Chord should be positive 90° off the arc
2019-02-18 17:05:59 -08:00
Tomasz Włostowski 3b3c674c1a gal: opengl: use correct radius for graphical circles 2019-02-19 01:55:50 +01:00
Seth Hillbrand 3a0dbffa9e cairo: Minor tweak for angle transforms
Need to swap angles before transforming or we get bad comparisons when
wrapping.
2019-02-18 16:42:49 -08:00
Tomasz Włostowski 2151e195c7 gal: cairo: don't forget about the color when drawing grid points... 2019-02-19 01:24:26 +01:00
Tomasz Włostowski f66baaed8c gal: cairo: pixel-align arc endpoints, not center to avoid misalignment with adjacent line segments 2019-02-19 01:21:20 +01:00
Seth Hillbrand 4597979d18 cairo: Draw ovals with filled half-arcs
The circle at the end only ever looked right with 100% opacity.

Also fixes double-drawn arc fills in Cairo
2019-02-18 16:09:44 -08:00
Seth Hillbrand 5af8d2d0a8 cairo: Fix rotated oval pads
Fixes: lp:1816428
* https://bugs.launchpad.net/kicad/+bug/1816428
2019-02-18 09:44:28 -08:00
Tomasz Włostowski 632a619df9 gal: fixed broken lines in flipped board view (pixel alignment regression) 2019-02-18 11:27:12 +01:00
Seth Hillbrand f1a60832e0 opengl: Handle stroked semi-circles
And filled but we don't use those yet.  No pixel-alignment needed for
stroked semi-circles (I think) as we set the pixel width to be 1
regardless of the zoom level.

Fixes: lp:1816263
* https://bugs.launchpad.net/kicad/+bug/1816263
2019-02-16 19:57:23 -08:00
Seth Hillbrand 9d4a19797c cairo: Don't round locations of outlines
Pixel alignment is not required for track outline mode.  It creates
differences between segment and radius calculations.

Also add specific width of the outlines
2019-02-16 17:45:05 -08:00
Tomasz Włostowski 85a7ab7795 gal: minor cleanup & formatting 2019-02-16 20:25:10 +01:00
Tomasz Włostowski bbee30671a gal: pixel alignment hacks, works for Retina display too now.
gal: pixel alignment for Cairo.
gal: pixel alignment for OpenGL

Cleanup of pixel alignment patches

gal/opengl: more pixel alignment patches:
- works on Retina displays now
- pixel alignment for circles
- correct 1-pixel strokes
- fixed unfinished 1-pixel line ends

GAL: Restore antialiasing options in Cairo
GAL: Fix arc drawing

Removes DrawArcSegment, which drew arcs whose edge was optionally
stroked (a feature that we did not use).  Fixes Cairo arc drawing issue
where arcs were not visible in pcbnew.

gal: further cleanup
gal: removed unused shader parameter
2019-02-16 20:03:13 +01:00
jean-pierre charras c8d44b86e2 Fix a compil issue with some compilers. 2019-02-15 08:47:03 +01:00
Seth Hillbrand 7b3ef1b7ed colors: Add HSL conversion and tune colors
When adding colors to length tuner, we depend on the window background
color, which can be set by the user, resulting in an unreadable text.
This uses the HSL conversion to detect which shade it should use for the
coloring.

Also adds test cases for round-trip HSL and HSV conversion

Fixes: lp:1814530
* https://bugs.launchpad.net/kicad/+bug/1814530
2019-02-11 22:08:41 -08:00
Seth Hillbrand 5da4e18664 bitmaps: Handle mask colors
Some transparent bitmaps use masking colors to show the binary
opaque/transparent.

Fixes: lp:1814893
* https://bugs.launchpad.net/kicad/+bug/1814893
2019-02-07 21:27:43 -08:00
Seth Hillbrand b63cdcf225 Type cleanup 2019-01-25 13:03:36 -08:00
Seth Hillbrand 3a3bbbb545 GAL: Add transparency for bitmaps and Cairo draw
Bitmaps loaded via wx can contain alpha channels.  We utilize underlying
routines to correctly map the alpha.  This also standardizes the Cairo
alpha calls to ensure correct display in Fallback for partially
transparent highlights

    Fixes: lp:1809845
    * https://bugs.launchpad.net/kicad/+bug/1809845
2019-01-04 13:40:19 -08:00
Seth Hillbrand e8333633fe GAL: Add antialiasing options to Cairo
Cairo supports antialiasing when rendering but can be slow when set to
sub-pixel mode.  This bumps the minimum version of Cairo to 1.12
(available in 14.04 LTS as well as mingw) to support three antialias
settings (fast, good, best) that offer speed/appearance tradeoffs.

This can provide a higher-quality eeschema render as it works on a
per-element basis as opposed to the OpenGL per-screen antialias.
2019-01-04 13:39:56 -08:00
jean-pierre charras db7dba96ad Fix a few Coverity warnings.
Mainly not initialized members, and replace not tested dynamic_cast by static_cast.
2019-01-04 09:49:21 +01:00
jean-pierre charras 26a337db18 Opengl engine: temporary disable bitmaps cache, because it creates serious issues in cross-probing in hierarchies.
If a page layout contains bitmaps and is used in all sheets of a hierarchy, and in the board editor,
the cross-probing from pcbnew to eeschema invalidate textures associated to these shared bitmaps,
when switching active sheets.
Usually a crash happens after switching or when closing editors.

As a workaround, I disabled bitmaps (therefore associated textures) cache.
Not optimal, but at least it avoid crashes.
2018-12-30 20:30:43 +01:00
Tomasz Włostowski 3adb8d56c5 OPENGL_GAL: no need to draw line caps when drawing a polyline, the shader takes care of them already 2018-12-24 15:35:25 +01:00
jean-pierre charras 83d851956c classes MARKER rework: remove duplicate code. Better HitTest code (HitTest takes in account the actual shape) 2018-12-19 19:53:27 +01:00
jean-pierre charras 73b52f2e23 Gerbview: fix incorrect initialization of WorldUnitLength.
Fix incorrect min zoom level to show D Code texts.
2018-11-20 10:27:59 +01:00
jean-pierre charras ffe4b745dd Opengl gal: Fix bug: segments with 0 length are not drawn. However the are equivalent to circles.
Using 0 length segments happen with oval pads having the same X and Y size, and in some other cases.

Fixes: lp:1801923
https://bugs.launchpad.net/kicad/+bug/1801923
2018-11-15 13:10:42 +01:00
John Beard 4c355c32d3 Fix rounding in COLOR4D::ToColour
Due to the implicit floor of the cast from double to unsigned char,
there was a small rounding error in COLOUR4D's WX conversion function.

This fixes the failing tests.

Also make the cast to unsigned char explicit.
2018-11-08 14:40:42 -05:00
Maciej Suminski 64da77538f Fix bitmap scale in printouts
Display GALs had an incorrect world unit value set. Now the world unit
value says how many internal units are in an inch, in accord with the comments
in the GAL header. Bitmap drawing code relied on the information about DPI,
so scaling worked differently for display and print GALs.
2018-10-31 19:17:30 +01:00
Maciej Suminski 92c5cb288e Fixed scale in Gerbview printouts 2018-10-31 19:17:30 +01:00
Maciej Suminski 347e21daaa Handle printout settings: line width, color/mono, mirror 2018-10-31 19:17:30 +01:00
Maciej Suminski 47d0eaa2c6 GAL: changed line width setting to float type 2018-10-31 19:17:30 +01:00
Maciej Suminski 6c689305a6 Decouple GAL printing interface and its Cairo-based implementation 2018-10-31 19:17:30 +01:00
Maciej Suminski e36f6b476d Changed the CAIRO_GAL class hierarchy
There is a dedicated class for display (CAIRO_GAL) and another one
for printing. The common part has been moved to CAIRO_GAL_BASE.
2018-10-31 19:17:30 +01:00
Maciej Suminski 5a64343fb4 CAIRO_PRINT_CTX class
CAIRO_PRINT_CTX provides a Cairo context created from wxPrintDC.
It allows one to prepare printouts using the Cairo library and
let wxWidgets handle the rest.
2018-10-31 19:17:29 +01:00
Maciej Suminski 1411e1f73a GAL: added methods to modify rotation in the transformation matrix 2018-10-31 19:17:29 +01:00
Jeff Young 16925cc74e Implement RAII locking for GAL updating.
Fixes a crash when typing fast in the place footprint filter box.

Also adds a bunch more checking to GAL locking, including making
sure the same person unlocks as locked, and preventing piece-meal
calls (the RAII objects must be used).
2018-10-26 23:02:05 +01:00
jean-pierre charras f183b4f526 GAL, Opengl: Draw Arc: fix draw layer depth (previously, set to 0.0, which is not always the case) 2018-10-21 19:53:36 +02:00
jean-pierre charras 7be215249d OPENGL_GAL: avoid crash when esotheric unicode chars are used in netnames/pad names in Debug mode.
It happens when the char is not found in the font used to display netnames/pad names.
When happens, a wxASSERT is raised.
Unfortunately it can crash the application if it is during a paint event or some critical time.
2018-10-20 18:08:36 +02:00
Tomasz Włostowski d66e0d4f7a eeschema-gal: implemented EnableDepthTest() in GAL, fixed drawing order in eeschema 2018-10-15 00:09:59 +02:00
Jeff Young 6a5744adb1 Show compile errors and go back to GLSL V120. 2018-10-13 12:39:53 +01:00
Jeff Young 6c34fdefd7 Better exception handling and context locking for GAL.
This prevents deadlocks when exceptions are thrown and the context
ends up not getting unlocked.

It also removes an earlier hack to try and minimize this which
didn't work anyway.
2018-10-12 23:44:49 +01:00
Tomasz Włostowski a676034e36 OPENGL_GAL::DrawGrid(): flush drawing buffer after drawing small crosses grid so that it's correctly composited
Fixes: lp:1797642
* https://bugs.launchpad.net/kicad/+bug/1797642
2018-10-12 23:52:35 +02:00
Tomasz Włostowski 711b278248 gal/opengl: handle single-pixel line width clamping in hardware (new shader). Correct grid rendering in GAL for pixel-sized lines 2018-10-12 19:13:54 +02:00
jean-pierre charras 0dfd0c5f52 Minot cosmetic enhancement 2018-10-11 11:26:59 +02:00
Ronnie Gaensli ab1f016132 Fix assert freeze of eeschema when ToHSV, h is Nan
Fixes: lp:1797006
* https://bugs.launchpad.net/kicad/+bug/1797006
2018-10-10 21:22:26 +02:00
jean-pierre charras a6d014d959 Fix some artifacts when drawing items, both on Cairo and Opengl.
Fix also incorrect selection of De Morgan style selection in SYMBOL_PREVIEW_WIDGET.
2018-10-09 11:08:56 +01:00
jean-pierre charras 88cdce8d62 Make SYMBOL_PREVIEW_WIDGET working, and using the canvas type of the caller. Fix an issue with F3 zoom key in libedit. 2018-10-09 11:08:56 +01:00
jean-pierre charras f283667fb0 add option to switch between opengl and cairo in eeschema (step 1) 2018-10-09 11:08:56 +01:00
jean-pierre charras e55763947e Set the reight grid visibility at start. Display axis in libedit and viewlib. 2018-10-09 11:08:56 +01:00
Jeff Young 0063f2c12d Stroke rectangles after filling so fill doesn't cover 1/2 of stroke. 2018-10-09 11:08:55 +01:00
Jeff Young afeebc8944 Grid settings for Eeschema GAL.
Split antialiasing options out from display options.  Move
antialiasing to common.  Duplicate the rest of display options
for Eeschema.

Implement OnSelectGrid and hookup GAL canvas refresh to
SetPresetGrid.

Add Grid Settings... to View menu and move Show Grid from
preferences to View Menu to match Pcbnew.
2018-10-09 11:08:55 +01:00
Tomasz Wlostowski ccb594f599 eeschema-gal: support for global labels and bitmaps 2018-10-09 11:08:55 +01:00
Tomasz Wlostowski f82f310dd5 eeschema-gal: added EnableDepthTest() feature in GAL 2018-10-09 11:08:52 +01:00
jean-pierre charras 26838c6800 Pcbnew: Crash after running external plugin
Happens only in Opengl mode.
So enforce controls in 3 group function: DrawGroup, ChangeGroupColor, ChangeGroupDepth.

Fixes: lp:1795044
https://bugs.launchpad.net/kicad/+bug/1795044
2018-09-29 12:58:47 +02:00
Jeff Young 0309228276 Don't allow drawing to a zero-height or zero-width GAL canvas.
Fixes: lp:1793913
* https://bugs.launchpad.net/kicad/+bug/1793913
2018-09-22 22:06:40 +01:00
Seth Hillbrand a6325aab29 Replacing Tesselation
Replaces Poly2Tri with updated code to process polygons faster and more
robustly.  Notably, we can now handle overlapping holes in the polygons,
allowing us to cache the triangulation of complex boards
2018-09-01 19:30:50 -07:00
Tomasz Wlostowski aab40ee9e8 OPENGL_GAL: don't use glCopyBuffer() on faulty Intel GL drivers
Fixes: lp:1787221
* https://bugs.launchpad.net/kicad/+bug/1787221
2018-08-16 14:34:36 +02:00
Jeff Young be1d6113d6 More performance enhancements.
Be more intelligent about sorting lib tree items.  (Footprint
entries, for instance, come out of an already-sorted list.)

Don't recreate menus twice when laoding Footprint Editor.

More pervasive use of WX_FILENAME to avoid expensive calls to
wxFileName::SplitPath() and string concatenation.

For POSIX kernels do all the work on the file-system side so we
don't have to keep converting back and forth between encodings.
2018-08-06 13:49:27 +01:00
Jeff Young 146ab1eb32 Small performance improvement loading stroke font. 2018-08-06 13:48:17 +01:00
jean-pierre charras 3a02e54411 Opengl fix: bitmaps having a width not multiple of 4 were incorrectly drawn.
This fix draws a "sub bitmap" having a width multiple of 4.
(The loss of 1 to 3 pixels in horizontal size should be not really noticeable)
2018-07-30 16:19:35 +02:00
Tomasz Wlostowski 516cf47946 OPENGL_GAL: optimized JP's bitmap drawing function to use textures 2018-07-30 00:13:37 +02:00
jean-pierre charras fefc7b8172 GAL canvases: add DrawBitmap(), using a basic brute force algo for OpenGL, and a optimized code for Cairo. In this fix the brute force means draw each pixel as a rectangle. It works fine, but could be optimized. 2018-07-30 00:13:30 +02:00
jean-pierre charras 82d492a840 Better wxASSERT message in OPENGL_GAL::computeBitmapTextSize, if the char is not found in font. 2018-07-23 13:58:13 +02:00
Jeff Young 185b524a62 Support both add-empty and add-browse for 3D models.
Also fixes a bug where the selected row and the grid cursor get
separated after a delete.

Fixes: lp:1782747
* https://bugs.launchpad.net/kicad/+bug/1782747
2018-07-23 01:09:47 +01:00
Carsten Schoenert e81faa2d5f fix misspelled 'allow to' -> 'allow one to' 2018-07-11 10:35:14 -04:00
Carsten Schoenert 9f7109826d fix misspelled 'allows to' -> 'allows one to'
Fixup small grammar issues around used 'allows to ...' almost in
code comments.
2018-07-11 10:35:03 -04:00
Andrzej Wolski 1f6f76beb9 Fix overbar drawing for non-italic text
Overbar was always indented inward, regardless if text was italic or not.
2018-06-24 12:01:10 -04:00
Maciej Suminski 73a8d2a9d5 OPENGL GAL: Fixed the iteration condition when drawing triangulated polyset
The loop used an incorrect variable size as the loop limit,
occasionally causing out of bounds accesses.

Fixes: lp:1778288
* https://bugs.launchpad.net/kicad/+bug/1778288
2018-06-23 02:05:21 +02:00
Maciej Suminski 1751e4631c Code formatting 2018-06-23 01:59:49 +02:00
Maciej Suminski 813c1a2ba2 Dealing with inconsistent wxGLCanvas::IsDisplaySupported()
wxGLCanvas::IsDisplaySupported() handles wxGL_{MINOR,MAJOR}_VERSION
attributes only in 3.0.4. Since 3.1.0 the attributes are apparently not
supported, so instead wxGLContext::IsOK() is used (introduced in 3.1.0).

Fixes: lp:1775995
* https://bugs.launchpad.net/kicad/+bug/1775995
2018-06-11 12:26:59 +02:00
Maciej Suminski 6bd708621b Early check of supported OpenGL version 2018-06-04 12:17:58 +02:00
jean-pierre charras 8f984c2899 OpenGL, DrawGrid(): use grid and axis alpha color value setting, instead of the fixed 1.0
In Cairo mode, this function uses already the alpha color value setting.
Now for low alpha values (usually they are low, as said in many GAL comments),
Cairo mode and OpenGL mode should have a similar look.
2018-06-01 18:29:04 +02:00
Maciej Suminski 7d9dea7897 Remove an excessive assert for Cairo canvas size
It is a C-style assert causing application termination when triggered.
Certain systems display pcbnew window shrinked so much, that the canvas
size is 0x0 pixels. The only problem with that is the window needs to be
resized.

Fixes: lp:1767031
* https://bugs.launchpad.net/kicad/+bug/1767031
2018-04-27 10:06:36 +02:00
Carsten Schoenert 77b3a662fc fix misspelled 'Allows to' -> 'Allows one to' 2018-04-08 13:24:30 -04:00
Carsten Schoenert 1f32f7c55b fix misspelled 'allows to' -> 'allows one to' 2018-04-08 13:24:18 -04:00