Qt Programming Language

Annabelle · wrote on 22 Sept 2017, 19:54

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 · 22 Sept 2017, 22:06

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

Annabelle · wrote on 22 Sept 2017, 22:06

@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 · 22 Sept 2017, 23:49

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 · wrote on 22 Sept 2017, 23:49

@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 · 23 Sept 2017, 17:32

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 · wrote on 23 Sept 2017, 17:32

@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 · 23 Sept 2017, 21:31

@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 · wrote on 23 Sept 2017, 21:31

@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 · 23 Sept 2017, 22:51

@Annabelle said in Qt Programming Language:

\U0001F470

That's right. You've got it.

Annabelle · wrote on 23 Sept 2017, 22:51

@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 · 24 Sept 2017, 02:20

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 · wrote on 24 Sept 2017, 02:20

@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 · 24 Sept 2017, 15:56

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 · 24 Sept 2017, 17:09

@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 · 24 Sept 2017, 19:30

@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 · 24 Sept 2017, 21:22

@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 · 24 Sept 2017, 22:47

@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 · wrote on 24 Sept 2017, 21:29

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 · M mrjj 24 Sept 2017, 21:22

@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

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