I'm going to. Now, does this mean anything labelled func inside the struct
needs tacked on as well?
Subject: Re: [swift-users] Need Help with C-to-Swift (finally)
From: ja...@apple.com
Date: Fri, 11 Dec 2015 18:19:55 -0800
CC: har...@harlanhaskins.com; swift-users@swift.org
To: gagemor...@outlook.com
Did you make the class and its methods public?
Jack
On Dec 11, 2015, at 6:16 PM, Gage Morgan <gagemor...@outlook.com> wrote:Here's
what I'm getting:
/home/mgage/swift-cairo-bindings/test/main.swift:4:15: error: module 'Cairo'
has no member named 'Surface'let surface = Cairo.Surface(format:
CAIRO_FORMAT_ARGB32, width: 421, height: 410) ^~~~~
~~~~~~~<unknown>:0: error: build had 1 command failures
So what I'm trying to do is to put all wrappings in a separate module named
Cairo. Then, I want to use those methods outside of the module named Cairo. I
renamed the class to Surface and fixed all references, but for some reason it
keeps saying something about Surface not present. I need to look into whether a
git repo may be needed.
Subject: Re: [swift-users] Need Help with C-to-Swift (finally)
From: har...@harlanhaskins.com
Date: Fri, 11 Dec 2015 20:31:20 -0500
CC: ja...@apple.com; swift-users@swift.org
To: gagemor...@outlook.com
Nope, but you’ll need a way to specify the class inside the module (the
fully-qualified type name)
Cairo.Cairo should work fine.
On Dec 11, 2015, at 8:14 PM, Gage Morgan <gagemor...@outlook.com> wrote:The
module is Cairo. Do I need to change something (I'm assuming by struct you mean
the name of the class containing wrappings). The class is named Cairo as well.
Could renaming the module to ModCairo fix this?
Sent from Outlook Mobile
On Fri, Dec 11, 2015 at 5:11 PM -0800, "Harlan Haskins"
<har...@harlanhaskins.com> wrote:
Is your struct named Cairo or Surface?
If Cairo is the module name, you're trying to instantiate the module.
- Harlan
On Dec 11, 2015, at 7:55 PM, Gage Morgan <gagemor...@outlook.com> wrote:
How would you use things like cairo.moveTo() outside of the wrapping file? I've
gone as far as writing a module named "Cairo," taking the methods as mentioned
above out, and moving them to their own directory "tests." I have added "Cairo"
as a dependency for "tests," but there appears to be something wrong when I try
to call:let cairo = Cairo(format: CAIRO_FORMAT_ARGB32, width: 421, height:
410)Why can I not call Cairo()? The error:Compiling Swift Module 'test' (1
sources)/home/mgage/swift-cairo-bindings/test/main.swift:4:18: error: cannot
call value of non-function type 'module<Cairo>'let cairo = Cairo(format:
CAIRO_FORMAT_ARGB32, width: 421, height: 410) ~~~~~^<unknown>:0:
error: build had 1 command failuresswift-build: exit(1):
["/home/mgage/Downloads/swift-2.2-SNAPSHOT-2015-12-01-b-ubuntu15.10/usr/bin/swift-build-tool",
"-f", "/home/mgage/swift-cairo-bindings/test/.build/debug/test.o/llbuild.yaml"]
I don't know whether or not I want to translate methods into straight-up
properties yet.Thanks, support here has been great so far. Cheers!--MGage--
Subject: Re: [swift-users] Need Help with C-to-Swift (finally)
From: har...@harlanhaskins.com
Date: Fri, 11 Dec 2015 19:35:46 -0500
CC: gagemor...@outlook.com; swift-users@swift.org
To: ja...@apple.com
I considered that but couldn't find a cairo_get_font_scale function quickly to
complement the setter 😅
But yes, a full wrapper would transparently handle getting and setting.
- Harlan
On Dec 11, 2015, at 7:28 PM, Jack Lawrence <ja...@apple.com> wrote:
For getter-setter pairs like `setLineWidth`, you might consider turning them
into properties:
cairo.setLineWidth(0.1) // oldcairo.lineWidth = 0.1 // new
On Dec 11, 2015, at 4:22 PM, Gage Morgan via swift-users
<swift-users@swift.org> wrote:Harlan,
The answer is yes. I even managed to get a couple you didn't list on my own:
let cairo = Cairo(format: CAIRO_FORMAT_ARGB32, width: 421, height:
410)cairo.scale(10.0, y: 10.0)cairo.moveTo(29.0, y: 14.7)cairo.lineTo(37.6, y:
13.0)cairo.moveTo(37.6, y: 13.0)cairo.lineTo(30.4, y: 22.2)cairo.moveTo(30.4,
y: 22.2)cairo.lineTo(29.0, y:
14.7)cairo.setLineWidth(0.1)cairo.stroke()cairo.surfaceWriteToPNG("boobs.png")
Swift is both really neat and really frustrating when learning it.
Subject: Re: [swift-users] Need Help with C-to-Swift (finally)
From: har...@harlanhaskins.com
Date: Fri, 11 Dec 2015 17:21:38 -0500
CC: kwame.br...@gmail.com; swift-users@swift.org
To: gagemor...@outlook.com
Gage,
Sorry, I just got back from class.
I’ll respond in line!
On Dec 11, 2015, at 5:09 PM, Gage Morgan <gagemor...@outlook.com> wrote:Harlan,
I read on cairographics.org about bindings awhile back. I think they want
cairo, not surface, so we would have something like:
let cairo = Surface(format: CAIRO_FORMAT_ARGB32, width: 240, height:
80)cairo.setFontFace("serif", weight:
CAIRO_FONT_WEIGHT_BOLD)cairo.setFontSize(32.0)cairo.setSourceRGB(0.0, g: 0.0,
b: 1.0)cairo.moveTo(x: 10, y: 50)cairo.showText("Hello,
World!")cairo.writeToPNG("hello.png")
Would this work the same as before without "surface" but instead "cairo”?
Absolutely! That’s just a variable name — it could be called ‘puppies’, though
that’s not very readable.
Sent from Outlook Mobile
On Fri, Dec 11, 2015 at 2:00 PM -0800, "Gage Morgan via swift-users"
<swift-users@swift.org> wrote:
I went and looked at it, and even now it looks like I want to take every
function I've used in Cairo and translate it to Swift. Swift is such a...simple
language compared to everything else. That being said, as a result of the
specs, it is also much more verbose in terms of writing the code. Compared to
other languages, it is written out instead of shoved onto a few lines.
Is there a way to import modules into other modules? Because it looks like a
weekend project that will eventually get posted by myself at
http://github.com/Christoffen-Corporation.
Sent from Outlook Mobile
I’d recommend having a look at the Swift package manager example again —
https://github.com/apple/swift-package-manager/blob/master/Documentation/SystemModules.md
There’s an example of using those modules together.
On Fri, Dec 11, 2015 at 1:52 PM -0800, "Gage Morgan via swift-users"
<swift-users@swift.org> wrote:
I meant the code posted in the Gist link above. I don't know jack squat about
qsort. I'm hoping that if I can reverse-engineer code already produced, I can
apply it to other parts of Cairo.
Sent from Outlook Mobile
I’ll go ahead and comment it, but I think it’s simplistic enough that it should
be readable with a grasp of some Swift concepts. Perhaps it’s a good idea to
look through The Swift Programming Language to figure out some of the
constructs I used — they’re fairly basic constructs.
On Fri, Dec 11, 2015 at 1:34 PM -0800, "Kwame Bryan"<kwame.br...@gmail.com>
wrote:
Tutorial on the subject. http://chris.eidhof.nl/posts/swift-c-interop.html
RegardsKwame<Mail Attachment.txt><Mail Attachment.txt>
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