[00:37] hello ll [00:37] *ll [00:37] *all [01:08] ahoneybun, hey! [01:08] whats going on? [01:09] Akiva-Thinkpad, I just bought a ticket to a show [01:09] my first concert [01:09] Ah neat [01:09] to my favorite rapper [01:09] * Akiva-Thinkpad never has been to a concert [01:09] whats a rapper? [01:10] person like emimen [01:10] http://georgewatsky.com/ [01:11] never heard of eminem. Anyways; sounds like fun [01:11] hope you have a good time. [01:17] thanks [01:17] will do for sure [01:17] ahoneybun, what you working on today? [01:17] Akiva-Thinkpad, nothing really [01:17] I recently got mobile data back [01:18] I lost phone service and all [01:18] right you actually have a device [01:18] how do you like it compared to android? [01:18] I reinstalled ubuntu [01:18] Akiva-Thinkpad, I have to say I miss android [01:18] why is that? [01:18] even more so since I now have a real nexus [01:18] I love the gestures. [01:19] yea those are nice [01:19] just the applications then? [01:19] yea I miss those [01:19] I wish the pandora app would work [01:19] panpipe [01:20] some of the buttons on ubuntu are not forgiving [01:20] * Akiva-Thinkpad just loves the terminal [01:20] as in they want to to push them in just the right spot [01:20] you need to be so precise [01:20] ahoneybun, maybe you can file a bug report [01:21] yea also I hate the number 1 [01:21] so darn hard to hit [01:21] with the N4's curved edge [01:22] omg [01:22] Watsky favorited my tweet [01:22] * Akiva-Thinkpad gets back to work :P [01:22] * ahoneybun should write a list [01:22] that would be good; feedback is really important to them [01:23] * ahoneybun invites Akiva-Thinkpad to #ubuntu-offtopic [01:24] * ahoneybun pokes popey [01:29] Akiva-Thinkpad, I also don;t like that you have to put a space in the quick reply to a message for the send button to be clickable [01:29] good list [01:30] :) [01:31] lol [01:31] so annoying [01:34] * ahoneybun shoots http://pastebin.ubuntu.com/8469844/ to popey or anyone else it maybe be helpful [05:19] any good tutorials of using QML and C++ with ubuntu-touch? Is there a better place for ubuntu touch app devel? [05:20] kurt_, oh hey [05:20] hello [05:20] kurt_, okay to your question [05:20] very good question btw [05:20] thanks [05:20] are you looking for a tutorial to use QML with c++? [05:21] or are you just looking to learn both languages seperately? [05:21] ya I found a page about it on ubuntu's site [05:21] but i would love something with some source in it [05:21] using qml with c++ is a bit of a trick if you have never done it. [05:21] I know very little of both [05:21] kurt_, okay good to know [05:21] well i just want to make a recording app for ubuntu touch [05:22] QML takes practice, although it is very easy once you get the hang of it [05:22] record just basic voice and that sort of thing? [05:22] ya I want to end up doing four tracks [05:22] kurt_, okay cool [05:23] kurt_, do you have a library or api you want to work with? [05:23] or have you not decided on this yet? [05:23] w/ Akiva-Thinkpad [05:23] didnt work lol [05:23] w/? [05:24] trying for the red letters its a whisper isnt it [05:24] kinda new to irc jump on from time to time [05:24] no feel free to speak openly here [05:24] oh [05:24] QtMultimedia 5.0 [05:24] kurt_, okay great [05:25] their is an audio section or it can be called directly i belive [05:25] so what you will need to do is how to use c++ with QML. [05:25] and I just so happen to have a, I think, rather decent example [05:25] the recording part must be done in C++ from what I can tell [05:25] its simple, and straight to the point. [05:25] Great!!! [05:25] kurt_, yes, if you are using qt [05:26] ubuntu sdk qt5 [05:26] 14.04 [05:26] kurt_, so my answer has it down to 4 steps [05:26] i have a N4 with multirom and ubuntu touch rtm r34 [05:26] kurt_, you best make sure you have the most recent libraries by the way [05:26] r3 [05:26] http://askubuntu.com/a/450684/253579 [05:27] so the first step is extremely easy. [05:27] http://paste.ubuntu.com/7365262/ [05:27] that is the second step, detailing the c++ header file [05:27] do you want me to walk you through it? [05:29] kurt_, ^ [05:29] can i just add a .h and .cpp to my qml simple ui [05:29] not easily, and the reason is this [05:29] To use c++, it is best to use a CMakeLists based project file. [05:29] yea ill have you walk me through it not enough done on it to need to save anyway lol [05:29] your app likely uses, .qmlproject, or .pro (which is qt) [05:30] yup [05:30] kurt_, oh don't worry; transfering qml code is stupidly easy [05:30] I did it myself, and it was no issue at all. The only thing we are changing is the plumbing [05:30] okay [05:30] joke was i dont have much qml anyway lol [05:30] so this is the header; are you familiar with what a header file is? [05:31] kurt_, ^? [05:31] I have taken a basic C and C++ class where we did many console applications [05:31] still dont understand it all that well lol [05:31] okay so you know stuff [05:31] don't worry [05:31] here and there [05:32] but just answer; you understand it basically, right? [05:32] ya [05:32] okay [05:32] do you understand what the macros do? [05:32] or rather, what they are? [05:33] kurt_, ^ [05:33] ? [05:33] like a script? [05:33] yah [05:33] basically [05:33] they insert code where you invoke them [05:33] okay [05:33] like invokeing JS in html [05:33] yah [05:34] i know a little web stuff too [05:34] all of codecademys stuff and some classes [05:34] okay, so you understand the class, you must give it the Q_object macro [05:34] does the macro allow qml to use the C++? [05:34] because that will make sure it plays nicely with other qt apps. [05:34] yes [05:34] two macros do [05:35] Q_OBJECT [05:35] and more specifically [05:35] Q_INVOKABLE [05:35] oh sweet i read that qml can use it but didnt fully understand [05:35] its called Q_INVOKABLE because it allows you to invoke that function in QML [05:35] okay [05:36] Explicit... bah I forget, but you need it too [05:36] so three? [05:36] kurt_, http://paste.ubuntu.com/7365260/ [05:36] kurt_, explicit is a primitive. [05:36] not a macro [05:37] okay so this is the source file, the .cpp to the header you just looked at [05:37] kurt_, you understand constructor? [05:37] as in what a constructor does? [05:38] kurt_, ^? [05:38] not really [05:38] kurt_, okay good; its simple [05:38] When you create your object [05:38] because this is object oriented programming [05:39] ya [05:39] the constructor initiates some commands just on creation [05:39] so imagine [05:39] if this was the sandwhich class [05:39] and the functions were to create a bunch of sandwhiches [05:40] the constructor might just be to "Take all the ingredients first out of the fridge" [05:40] because if you have no ingredients, then your functions can not run. [05:40] again; just the preliminary stuff. [05:41] our constructor is empty, because there is not anything that needs to be done. [05:41] kurt_, basically, if you understand that its stuff that you need to do on startup, you will know when you need to use it. [05:41] kurt_, does that make enough sense? [05:41] what do you think? [05:41] ya [05:41] okay [05:42] So do you understand the primitive "void"? [05:42] kurt_, do you understand what a primitive is? kurt_ ? [05:42] no [05:42] kurt_, okay [05:42] tried a quick google lol [05:43] kurt_, no feel free to ask questions, seriously [05:43] kurt_, a primitive is self descriptive. Just imagine you are a cave man [05:43] "PRIMITIVE!" [05:43] what are your primitive tools? [05:43] well, Rocks for smashing [05:43] sticks for poking [05:43] teeth for biting [05:44] nose for smelling [05:44] right [05:44] ya [05:44] What are your "Non primitives" (thats not a technical term) [05:44] things you make? [05:44] well, its your advanced stuff, like your dinosaur that you travel on [05:44] oh [05:44] or your flinstones car [05:44] or things you make sure [05:45] thats a better example right [05:45] because what you make, is made out of your primitives [05:45] modular programing? [05:45] so lets say you make a flinstones car; you use rocks for bashing, sticks for holding stuff together, teeth for cutting [05:45] small parts make a big unit [05:45] silly example [05:45] yah [05:46] haha [05:46] so in a programming language, lets say you are using c++ [05:46] well a primitive might be, "+" [05:46] your primitives made a car [05:46] the plus is the add things together primitive [05:46] exactly [05:47] the int is the create a number primitive. [05:47] integer [05:47] its all the stuff that comes bundled with the language [05:47] exactly [05:47] anyways, maybe some c++ developer is rolling in his grave, but this makes sense to me [05:47] okay [05:47] void is a primitive. [05:48] so we are creating a void function, aka method [05:48] do you know what a function / method is? [05:48] kurt_, ^ [05:48] i know a function [05:49] kurt_, okay well a method is basically the same thing [05:49] oh function or method [05:49] gottcha [05:49] kurt_, sometimes people say methods are functions within a class [05:49] so you have a class of stuff, [05:49] and each stuff is a method of the cleass [05:49] class* [05:49] whats void do [05:49] good question. [05:50] void allows you to create a function that returns nothing. [05:50] so in a function [05:50] do you know what parameters are? [05:50] like dev/zero in dd [05:50] mmmm not sure; I don't know dd [05:50] parameters like arguments? [05:51] kurt_, yes exactly; but whats the difference between the two? [05:51] parameters are numbers? [05:51] (very good btw) [05:51] set variables [05:51] nope. [05:51] Okay, when you define the function, its this: [05:52] myFunction(parameter1, parameter2) [05:52] when you invoke the function, its this [05:52] oh duh ya ive used that [05:52] myFunction(argument1, argument2) [05:52] so when I say, arguments, I am talking about a function that was invoked. [05:53] when I talk about parameters, I am talking about a function that was defined [05:53] so! [05:53] in this pastebin, are we looking at arguments or parameters? [05:53] void MyType::myFileWritingFunction(const QString &inputText) [05:54] kurt_, ?^ [05:54] depends on how you use the function [05:54] kurt_, no incorrect [05:54] or does that not matter [05:55] parameter was my guess [05:55] your guess would have been right [05:55] in this pastebin, why is it parameters? [05:55] by the way, do you know what it means to invoke something? [05:56] kurt_, ^? [05:56] to use a script inside your code [05:56] call a script [05:56] yah, call it [05:56] well done [05:56] i invoked jquery for fancy buttons [05:57] so when we call a function, it ask for what? [05:57] asks for what*? Parameters or Arguments? [05:57] a parameter [05:57] No. [05:57] And this is good; I am making sure you know :) [05:57] i thought parameters were invoked [05:58] It asks for an argument. [05:58] im glade you are [05:58] everyone makes mistakes~ [05:58] :P [05:58] Parameters are set when you define it. [05:59] So lets say you create a bread machine [05:59] the bread machine takes 3 ingredients [05:59] Water, Flour, and rising agent [05:59] These are the parameters [05:59] so when you use the bread machine [05:59] you give it arguments [06:00] you give it, Potato water, Whole Grain Flour, and Baking Soda [06:00] you are arguing in effect, how the bread machine will work [06:00] kurt_, ^ make sense? [06:01] except the last line [06:01] arguing in effect? [06:01] you are arguing how the bread machine will work [06:01] - in effect [06:02] forget that I said "in effect" [06:02] btw, my computer is super low on battery [06:02] oh the water flour and soda are the arguments [06:02] I will try to stick it out. [06:02] you don't have to you've been more than helpful [06:03] kurt_, yes, they are the specific ingredients you chose to use [06:03] okay [06:03] so the function [06:03] when you invoke a function, often times what you want from the function is to get something back from it [06:04] so you put whole grain flour, potato water, and baking soda into the bread machine [06:04] and it "returns" a soda bread dough [06:04] if that was the case, void MyType::myFileWritingFunction(const QString &inputText) [06:04] should look like [06:05] breaddough MyType::myFileWritingFunction(const QString &inputText) [06:05] why did I change void to breaddough? [06:05] kurt_, ^? [06:05] void is a place holder for a variable [06:05] no [06:05] good guess though [06:06] if I had a toilet [06:06] so lets say [06:06] I would do this [06:06] void toilet(poo) [06:06] I put void there, because I don't want it to return anything [06:07] you want the toilet to return poo? [06:07] haha [06:07] definitely not! [06:07] I want to return void!!! [06:07] accept poo? [06:07] ie [06:07] nothing [06:07] yes [06:07] accept poo, return nothing! [06:07] ha [06:07] there is nothing I want from a toilet! [06:07] where as a bread machine, [06:07] I want it to return some dough [06:07] what about the fancy Japanese ones? [06:07] anyways [06:08] okay sorry lol [06:08] so that is why void is there [06:08] lol [06:08] o/ morning all [06:08] justCarakas, ah morning [06:08] long time no see [06:08] alright [06:08] good morrow to the [06:08] indeed :) probably always just missed you :p [06:08] the [06:08] auto correct [06:09] kurt_, so everything else I presume should make sense to you [06:09] ya [06:09] any more questions about the .cpp source file? [06:09] kurt_, http://paste.ubuntu.com/7365259/ [06:09] so this is the qml file [06:09] well when i start a project in the sdk do i start a c++ file or do i just add a C++ class to qml? [06:10] kurt_, good question; you will have to do it manually by creating a new text file in the directory [06:10] and then rebuilding [06:10] its the trouble with cmake, but oh well [06:10] rebuilding? [06:10] yes [06:10] i can look that up [06:11] if you right click on your folder [06:11] like the project folder in the sdk, [06:11] so if i find code useing qml and c++ for nokia will it work with some changes on ubuntu touch [06:11] it should have options like, "Build" "clean" [06:11] "run" [06:11] ah i see it [06:11] kurt_, yep [06:11] so basically [06:11] you build first, run second [06:12] if you click run, it builds for you, then runs [06:12] what building does, is that it creates a file directory for you to test your app in [06:12] oh [06:12] chroot if you are familiar (at least I think its chroot. I'm not a cmakes expert) [06:12] chroot is a linux command you should look up. [06:12] anyways [06:13] i have used chroot to install arch since they lost support for their installer [06:13] ah cool [06:13] anyways [06:13] system administration is what im going to school for [06:13] very cool [06:13] anyways [06:13] ya [06:13] * Akiva-Thinkpad is running out of batt so im trying to be quick [06:14] so MainView is a component [06:14] my bad [06:14] in QML, all components look like this: [06:14] Component { } [06:14] ie [06:14] the first letter is always capitalized [06:14] so you see that in my example [06:14] MainView [06:14] ya [06:14] Button [06:14] MyType [06:14] All components [06:15] not camel cased [06:15] A property, is well, a property of a component [06:15] they are always lowercase first letter followed by a colon [06:15] so [06:15] id: myType [06:15] ya thats camel cased right [06:15] text: myButton [06:15] kurt_, its literally the rules of the syntax [06:16] oh [06:16] you can't have capital lettered properties [06:16] or lower case components [06:16] okay [06:16] ya [06:16] and last line there [06:16] says [06:16] onClicked: [06:16] so that is a property that sends a signal [06:16] ya the event [06:16] when you click the button [06:17] it performs the function [06:17] i got that [06:17] oh just invoke my C++ on the button click [06:17] myType (name of the class) myFileWritningFunction (name of the method) (myArguments) [06:17] invoke from the qml [06:17] exactly [06:18]