Qt Programming Language

[Annabelle]

@SGaist said in Qt Programming Language:

Like shown in my sample widget, you should use layouts in order to place your widgets around in your application. Therefore my suggestion, put your text into a QLabel with setText and then put that label at the appropriate place within the layout.

As for the plugin, it might be out of date regarding the version of Notepad++. If possible, I'd recommend using Qt Creator in order to build your application. It would likely make things easier.

I can't access Qt Creator with my screenreader, JAWS (Job Access With Speech). That's why I'm making the code in Notepad++. I just wish I knew how to make the finished program.

[Annabelle]

I'm still a bit stuck on this Qt Programming Language. Since I can't access Qt Creator with my JAWS screenreader, as it doesn't recognize image-based icons, how else can I create a finished program after compiling the source code in Notepad++? Anybody have any answers for me?

[mrjj]

@Annabelle
So you can compile it already?
Or is it the compiling part that is hard to do ?

Can the JAWS read a command prompt ?

[Annabelle]

I'm still a bit confused on how to make the finished program. I can't access the Qt Creator, since my screenreader, or any screenreaders, for that matter, won't recognize image-based icons. Is there a way for someone blind like me to create a finished program such as the app I'm putting together, after compiling the source code in Notepad++?

[sierdzio]

Do you have the code ready, with a .pro file (it is a project definition file that Qt uses to compile applications)? If yes, then you can compile your project from the command line. Open cmd.exe (I guess you are on Windows operating system) and type:

qmake yourprojectname.pro
make

That should be enough, assuming your environment is prepared (qmake and compiler are both set up in PATH system variable).

As a side note, as far as I know there is an accessibility team working at Qt Company, I'm sure they will be happy to hear how both Qt and Qt Creator can be improved to help blind people. You can try reaching them at qt-creator@qt-project.org. You can also subscribe to Qt Creator mailing list here: http://lists.qt-project.org/mailman/listinfo/qt-creator.

[Annabelle]

@mrjj said in Qt Programming Language:

@Annabelle
So you can compile it already?
Or is it the compiling part that is hard to do ?

Can the JAWS read a command prompt ?

I can make the source code, it's the compiling the finished program part that's hard. Yes, JAWS can read a Command Prompt. What do I do in there?

[Allanis]

Hi, you will need to create a .pro file which gives instructions on how to build your application. http://doc.qt.io/qt-4.8/qmake-project-files.html

Once you have have this. you can do as instructed by @sierdzio in CMD.

[Allanis]

@Annabelle Sorry, I was at work when I made my initial response to this thread. A more elaborate answer for you follows as I take it you are beginning in Qt and it may be difficult for you to look up resources.

Given the scope of your project I think it will suffice to use a simple Qmake project file such as:

myapp.pro

TEMPLATE = app

QT += widgets

SOURCES += main.cpp \
    MainWindow.cpp \
    SpouseWidget.cpp

HEADERS += \
    MainWindow.h \
    SpouswWidget.h

OTHER_FILES += \
    anyotherfile.png

You may need to make changes to this in order to fit the needs of your project, but this should be a good enough example for you.

Once you have this in place, you can open up your favorite Command Line Interface (eg. cmd.exe for Windows).

Type:

qmake myapp.pro
make

Your compiler will generate a binary file for your application at this point.

I hope this helps,
Have fun.

[Annabelle]

Another thing I'd like to do is make icons for the push buttons, radio buttons, combo boxes, and checkboxes. I'd like to find out, is it OK for me to use unicode symbols as icons? For example:
In the welcome screen, there are the following Radio Buttons
⚭ (Wedding Ceremony Radio Button)
~⛲ (Baptism Ceremony Radio Button)
⛼ (Funeral Ceremony Radio Button)
For the Spouse Genders, there should be the following Icons:
👰 (Bride Radio Button)
🤵 (Groom Radio Button)
For the Baptism Person Types, there should be the following Icons:
👦👶👧 (Infant Radio Button)
👦👧 (Child Radio Button)
👦👨👧👩 (Youth Radio Button)
👨👴👩👵 (Adult Radio Button)
For the Funeral Ceremony Types, there should be the following icons:
⚰ (Funeral Radio Button)
⚱ (Memorial Service Radio Button)
Note that some of the icons are composed of two or more unicode characters put together, as I couldn't find separate unicode symbols to represent them.

[Allanis]

You should be able to use QString::fromUtf8() for this: http://doc.qt.io/qt-5/qstring.html#fromUtf8

[Annabelle]

@Allanis said in Qt Programming Language:

You should be able to use QString::fromUtf8() for this: http://doc.qt.io/qt-5/qstring.html#fromUtf8

Could you please be so kind as to give me an example of what one of my icons would look like with the QString::fromUtf8() code? For example: 👦👶👧

[Allanis]

Sure. I'm not sure exactly what you mean. Do you want an image or a code example? either way I whipped up a quick example to demonstrate what it would look like. Here's an image.

Given that your first post mentioned you where visually impaired, I think I may have misunderstood your meaning, so here's an example in code:

  QRadioButton* rb = new QRadioButton();
  QString str = QString::fromUtf8("<Utf-8 code> Button Name");
  rb->setText(str);

Where <Utf-8 code> = the character you wish to display.
Pretty sure there is a nicer way to do it. But I'm off to bed. That should get you started though.

[Annabelle]

@Allanis said in Qt Programming Language:

Sure. I'm not sure exactly what you mean. Do you want an image or a code example? either way I whipped up a quick example to demonstrate what it would look like. Here's an image.

Given that your first post mentioned you where visually impaired, I think I may have misunderstood your meaning, so here's an example in code:

  QRadioButton* rb = new QRadioButton();
  QString str = QString::fromUtf8("<Utf-8 code> Button Name");
  rb->setText(str);

Where <Utf-8 code> = the character you wish to display.
Pretty sure there is a nicer way to do it. But I'm off to bed. That should get you started though.

So are you thinking I should write something like:
QRadioButton* rb = new QRadioButton();
QString str = QString::fromUtf8("<👰> Button Name");
rb->setText(str);
And for "Button Name", would it be something like:
QRadioButton* rb = new QRadioButton();
QString str = QString::fromUtf8("<👰> Bride");
rb->setText(str);
Something along those lines?

[Allanis]

Yeah that will work. But remove the <> from around your unicode character. I only placed them their as placeholder. It will work by placing the unicode character in your source file as you have done, but I would recommend finding the value for it instead. I'm replying from my phone so I can't look ot up for you.

[Annabelle]

@Allanis said in Qt Programming Language:

Yeah that will work. But remove the <> from around your unicode character. I only placed them their as placeholder. It will work by placing the unicode character in your source file as you have done, but I would recommend finding the value for it instead. I'm replying from my phone so I can't look ot up for you.

@Allanis said in Qt Programming Language:

Yeah that will work. But remove the <> from around your unicode character. I only placed them their as placeholder. It will work by placing the unicode character in your source file as you have done, but I would recommend finding the value for it instead. I'm replying from my phone so I can't look ot up for you.

By value, do you mean the Unicode value? Or do you mean the hexidecimal value? I'm confused!

[Allanis]

@Annabelle said in Qt Programming Language:

👰

Sorry, I wasn't too clear. You should use the UCN for example: '\u2639' will represent ☹
There can be problems with this as compilers are required to support only the basic source characters. I'm not sure if Qt gives you much help in way of UCN's so if it doesn't display the character for you, use the literal '☹' in your source, and perhaps see if someone else can help you with the use of UCN as I'm not so sure without reading up on it. Perhaps also try reading up on character sets to understand encodings.

Edit:
I just checked up the code for 👧

  QString str1 = QString::fromUtf8("\U0001F467 Button 1");

[Annabelle]

@Allanis said in Qt Programming Language:

@Annabelle said in Qt Programming Language:

👰

Sorry, I wasn't too clear. You should use the UCN for example: '\u2639' will represent ☹
There can be problems with this as compilers are required to support only the basic source characters. I'm not sure if Qt gives you much help in way of UCN's so if it doesn't display the character for you, use the literal '☹' in your source, and perhaps see if someone else can help you with the use of UCN as I'm not so sure without reading up on it. Perhaps also try reading up on character sets to understand encodings.

Edit:
I just checked up the code for 👧

  QString str1 = QString::fromUtf8("\U0001F467 Button 1");

So for Bride:

QString str1 = QString::fromUtf8("\U0001F470 Button 1");
-> Set Text = "Bride";

[Allanis]

@Annabelle said in Qt Programming Language:

\U0001F470

That's right. You've got it.

[Annabelle]

@Allanis said in Qt Programming Language:

@Annabelle said in Qt Programming Language:

\U0001F470

That's right. You've got it.

So would this look right?

QString str1 = QString::fromUtf8("\U0001F470 Button 1");
-> Set Text = "Bride";
Not quite sure how to do the "Set Text" part, so I did the best I could when writing the code. So how would I compile the full version of the radio button? Would it look something like this?
QRadioButton *button = new QRadioButton ("Bride", this);
QString str1 = QString::fromUtf8("\U0001F470 Button 1");
-> Set Text = "Bride";

[Allanis]

QRadioButton* button = new QRadioButton();
QString str1 = QString::fromUtf8("\U0001F470 Bride");
button->setText(str1);

I would suggest reading a book to get yourself better acquainted with C++. Otherwise you will encounter many pitfalls.

[Annabelle]

@Allanis said in Qt Programming Language:

QRadioButton* button = new QRadioButton();
QString str1 = QString::fromUtf8("\U0001F470 Bride");
button->setText(str1);

I would suggest reading a book to get yourself better acquainted with C++. Otherwise you will encounter many pitfalls.

Are there any books out there that are available in Braille? Since that's the primary format which I read. If that's not possible, is there a .chm help file that can explain the language in detail?

[Allanis]

It may be difficult to find such a technical book in Braille. I had a look but came up empty. You can find a copy of "C++ gui programming with qt4 2nd edition" in .chm.

https://github.com/sherlock/qt?files=1

I think your screen reader should be ok to read epub? If so you could pickup most textbooks from amazon or something.

[Annabelle]

@Allanis said in Qt Programming Language:

It may be difficult to find such a technical book in Braille. I had a look but came up empty. You can find a copy of "C++ gui programming with qt4 2nd edition" in .chm.

https://github.com/sherlock/qt?files=1

I think your screen reader should be ok to read epub? If so you could pickup most textbooks from amazon or something.

I tried searching for the .chm file "C++ gui programming with qt4 2nd
edition" on the link you provided, but it says "No Matching Files Found". Where do I go next?

[mrjj]

@Annabelle
Hi, it is hidden inside a download button
this is direct link
https://github.com/sherlock/qt/raw/master/C%2B%2B GUI Programming with Qt4 2ndEdition.chm

[Annabelle]

@mrjj said in Qt Programming Language:

@Annabelle
Hi, it is hidden inside a download button
this is direct link
https://github.com/sherlock/qt/raw/master/C%2B%2B GUI Programming with Qt4 2ndEdition.chm

I downloaded the .chm file, but now when I attempt to read any of the topics, it seems there's nothing in them. Is there something wrong with the file?

[mrjj]

@Annabelle
Hi
Yes it seems that at least on windows 10, only the toc is there -
nothing is shown when you click on a topic.

If pdf is ok, here is direct link
https://tfetimes.com/wp-content/uploads/2015/09/c-gui-programming-with-qt-4-2ndedition.pdf

[Allanis]

Sorry if I provided a bad link. (Didn't really download to check it).
See if your screen reader can read epubs ok. And you can find all you need on amazon. (Alternate outlets are available too.)

[Annabelle]

@mrjj said in Qt Programming Language:

@Annabelle
Hi
Yes it seems that at least on windows 10, only the toc is there -
nothing is shown when you click on a topic.

If pdf is ok, here is direct link
https://tfetimes.com/wp-content/uploads/2015/09/c-gui-programming-with-qt-4-2ndedition.pdf

1. This machine I'm on is Windows XP.
2. My screenreader doesn't read PDF's.
3. What are EPubs?
4. Would I have to pay to find it on Amazon? If so, how much?

[Sunfluxgames]

https://www.youtube.com/watch?v=ETOohmYui3Q

Would finding a pdf that would read her all the text from a basic C++ book work?

Then use Jaws to google examples or terms that she doesn't understand?

EPUB is an e-book file format with the extension .epub that can be downloaded and read on devices like smartphones, tablets, computers, or e-readers.

[Annabelle]

@Sunfluxgames said in Qt Programming Language:

https://www.youtube.com/watch?v=ETOohmYui3Q

Would finding a pdf that would read her all the text from a basic C++ book work?

Then use Jaws to google examples or terms that she doesn't understand?

EPUB is an e-book file format with the extension .epub that can be downloaded and read on devices like smartphones, tablets, computers, or e-readers.

Which book of Basic C++ are you thinking of? PDF's in general don't work with my screenreader. .chm's, .txt's, and .doc's work just fine.

[JonB]

@Annabelle
Excuse my jumping in. I am not a Qt professional, but I have been following this thread.

I hope you find success in however you approach programming. Even for a fully-sighted person C++ can be a bit daunting! May I suggest you have a brief look at this answer https://stackoverflow.com/a/3274617/489865, from a blind person reporting success with C++. There are also interesting posts in https://stackoverflow.com/questions/118984/how-can-you-program-if-youre-blind

[mrdebug]

Sorry, I hope that my reply it isn't off topic.
If you have and idea about an application to write and you think that it will be have a business or you already have customers that have asked for it don't worry.
You can design the ui (that it is easy) and you can ask to someone that knows C++ to write the code for you.
In the past I had a customer that did somehing like this.

[Annabelle]

@mrdebug said in Qt Programming Language:

Sorry, I hope that my reply it isn't off topic.
If you have and idea about an application to write and you think that it will be have a business or you already have customers that have asked for it don't worry.
You can design the ui (that it is easy) and you can ask to someone that knows C++ to write the code for you.
In the past I had a customer that did somehing like this.

1. I know how to write some of the code. It's the compiling part that I have trouble with. Also, I want to find a .chm help file that explains more of the codes of the Qt programming language in detail.
2. I haven't even started my company, so I don't have any customers as of this moment.

[ambershark]

@Annabelle I can't help you with the chm part, but if you need help compiling I can help you figure out both qmake and cmake. Cmake being my preferred method of building Qt projects.

I build everything command line and rarely use IDEs. That sounds exactly what you're looking for if you are using notepad++ and just need a command line build.

[Allanis]

@ambershark this topic was already covered. From context that she has used "compile" in various times I think she means that she isn't sure how to "fit all the pieces" together to get her code working.

[Annabelle]

@ambershark said in Qt Programming Language:

@Annabelle I can't help you with the chm part, but if you need help compiling I can help you figure out both qmake and cmake. Cmake being my preferred method of building Qt projects.

I build everything command line and rarely use IDEs. That sounds exactly what you're looking for if you are using notepad++ and just need a command line build.

JAWS is really good with the command line method. What are the commands I should put in when compiling my program?

[Allanis]

@Allanis said in Qt Programming Language:

@Annabelle Sorry, I was at work when I made my initial response to this thread. A more elaborate answer for you follows as I take it you are beginning in Qt and it may be difficult for you to look up resources.

Given the scope of your project I think it will suffice to use a simple Qmake project file such as:

myapp.pro

TEMPLATE = app

QT += widgets

SOURCES += main.cpp \
    MainWindow.cpp \
    SpouseWidget.cpp

HEADERS += \
    MainWindow.h \
    SpouswWidget.h

OTHER_FILES += \
    anyotherfile.png

You may need to make changes to this in order to fit the needs of your project, but this should be a good enough example for you.

Once you have this in place, you can open up your favorite Command Line Interface (eg. cmd.exe for Windows).

Type:

qmake myapp.pro
make

Your compiler will generate a binary file for your application at this point.

I hope this helps,
Have fun.

[Allanis]

The above was posted four days ago. You have not compiled and tested your program at all?

[Annabelle]

@Allanis said in Qt Programming Language:

The above was posted four days ago. You have not compiled and tested your program at all?

No I haven't compiled and tested my program yet. I'm still writing up the code. I'm wondering if there's a .chm help file out there, which will list all the available possibilities for parameters like buttons, checkboxes, radiobuttons, tooltips, infotips, comboboxes, and edit boxes (both single line and multi line).

[Allanis]

@Annabelle I struggled to find a .chm for you. But the best place you can look for help with the SDK is the official documentation: http://doc.qt.io/qt-5/

Check out:
http://doc.qt.io/qt-5/qtwidgets-module.html
You will find what you need in relation to Radio Buttons, tooltips etc..