Programmatically adding new line in mx:TextArea - apache-flex

I have a flex 4.5 application. I want to add new line in an mx:TextArea when certain event occurs. I have been searching for the proper way to add a OS independent line ending. I found out that the File class has lineEnding property. However the documentation states that this class is not exposed when running inside a browser (which is my case).
I have searched, but I couldn't find any other class, which can provide this information. Actually I am not sure if the TextArea line ending is OS dependent or not.
So actually I have two questions: Are TextArea line endings OS dependent or not? And if so, how can I get the proper line ending in flex?

You can use String.fromCharCode(13). This will return a line ending.
This is the equivalent of PHP's chr() method.
Example:
var address_str:String = "dog" + String.fromCharCode(64) + "house.net";
trace(address_str); // output: dog#house.net

From my experience, "\r" works in both Windows and Mac.

Quite simply, you just need to add the newline character to the text of the textArea.
myTextArea.text+="\n"; //This should work, if not try the other two
myTextArea.text+="\r";
myTextArea.text+="\r\n";

Related

Reading multiple lines from QTextedit

I'm trying to write my own code-editor, I figure its a good way to learn pyQt.
I am using a qtextedit, in which i can write code(it's not real code, more pseudo code).
Each line represents ending in a semi-colon represents some command
e.g.
PSEUDO->FWD->90;
PSEUDO->STOP;
PSEUDO->RIGHT 90;
PSEUDO->FWD 10;
These are relatively easy to read, as the user presses the [ENTER] the current line is read, parsed and checked for errors so the following
PSEUDO->RIGHT -pi/2
would generate an error because the line doesn't end in a semi-colon and the value following RIGHT needs to be a number.(my editor, my rules).All this I have more or less got working.
I would like to know how to do multiple lines though. I am familiar with editors such as Eclipse,sublime or visual studio which handle muliple lines very well, in my case
PSEUDO->DO:
FWD->90
RIGHT->45
FWD->10
LEFT->55
FWD->50
STOP;
Should all be read in and treated as one statement, starting at the keyword PSEUDO and ending at the semi-colon.
However the following should be read as 3 separate statements.
PSEUDO->DO:
FWD->90
RIGHT->45
FWD->10
LEFT->55
FWD->50
STOP;
PSEUDO->DO:
FWD->90
RIGHT->45
STOP;
PSEUDO->BACK 10;
My question how can I go about reading muliple lines as described above from QTextEditor as discreet statements.
Should I do the parse/check whenever I press the [ENTER] key for a new line?
I'm using python2.7,pyQT, and QTextEdit.
Basically what you are trying to do, can be done with all the text of the document and some regular expressions. I would be careful with this course, because it may slow things down.
So to stay lean and to use the right classes of Qt, I would use anything related to the Rich Text Processing, QTextDocument, and QTextCursor.
I have used QSyntaxHighlighter quite a bit, and QRegExp. There is now QRegularExpression, too. Here are the classes and general documentation I'd look at to get started with Rich Text processing.
http://doc.qt.io/qt-5/qtextblock.html#details
http://doc.qt.io/qt-5/richtext-structure.html
http://doc.qt.io/qt-5/richtext.html
http://doc.qt.io/qt-5/richtext-cursor.html
http://doc.qt.io/qt-5/richtext-common-tasks.html#finding-text
Hope that helps.

Unicode characters in qt app dont show up

I'm trying to display different language strings in my qt app by inserting each language into a QMap<QString, QString> so it can be re-used in several places and put into different combo Boxes across the application. I do this by
creating the QMap like so in the CTOR:
m_langMap.insert(QString::fromWCharArray(L"English"), "english");
m_langMap.insert(QString::fromWCharArray(L"Dansk"), "dansk");
m_langMap.insert(QString::fromWCharArray(L"Nederlands"), "dutch");
m_langMap.insert(QString::fromWCharArray(L"Čeština"), "czeck");
m_langMap.insert(QString::fromWCharArray(L"Slovenský"), "slovak");
m_langMap.insert(QString::fromWCharArray(L"Magyar"), "hungarian");
m_langMap.insert(QString::fromWCharArray(L"Român"), "romanian");
m_langMap.insert(QString::fromWCharArray(L"Latviešu"), "latvian");
m_langMap.insert(QString::fromWCharArray(L"Lietuvių"), "lithuanian");
m_langMap.insert(QString::fromWCharArray(L"Polski"), "polish");
m_langMap.insert(QString::fromWCharArray(L"Português"), "portuguese");
m_langMap.insert(QString::fromWCharArray(L"Español"), "spanish");
m_langMap.insert(QString::fromWCharArray(L"Français"), "french");
m_langMap.insert(QString::fromWCharArray(L"Italiano"), "italian");
m_langMap.insert(QString::fromWCharArray(L"Svenska"), "swedish");
m_langMap.insert(QString::fromWCharArray(L"Русский"), "russian");
m_langMap.insert(QString::fromWCharArray(L"Українська"), "ukranian");
m_langMap.insert(QString::fromWCharArray(L"Русский"), "russian");
m_langMap.insert(QString::fromWCharArray(L"中文"), "chinese");
m_langMap.insert(QString::fromWCharArray(L"日本語"), "japanese");
I then insert them into the combo box:
QMap<QString, QString>::const_iterator it = m_langMap.begin();
while (it != m_langMap.end())
{
ui->comboBox->addItem(it.key());
++it;
}
When the app runs, I see the following:
However, if I create a separate .ui file and insert the map the same way, I see the following (even if I include this separate Dialog class into the same application), so clearly there is no font issue as far as the App not knowing how to render the different character sets....yet I cant figure out why the first one won't render the character sets?
Can someone tell me why the first doesn't work but the second does? I checked the Designer and its Locale is set to 'C, Default' in both ui files I've shown below. I can't seem to figure out what else is causing the difference for the first not to work, and the second does work within the same application.
Thanks for any help!
The other test Dialog:
Your code is correct, but the problem is that your source file cannot contain Unicode characters - apparently it is using different coding.
Save file as UTF-8 and everything should work!
In the first screenshot the font used by the combobox is much larger than in the second screenshot. My guess is that you have changed the font either in the GUI designer or in the code and the second (working) screenshot is using the default font. It might be that when you have changed the font size, you have also changed the font to something that doesn't contain all the required Unicode characters. Try changing the font used by the combobox to something else.

$ sign after each line in files(UNIX OS)

I am new to vim editor and based on general reading from different forums, I was trying to customize vim by updating the .vimrc file to look something like this:
syntax on
set incsearch
set ignorecase
set smartcase
set wildmode = list
that gives me a whole set of functionality I need. However, after having saved this content to .vimrc, suddenly all my files started to show $ as the ending character after each line.
i.e. Now even the .vimrc file looks like:
syntax on$
set incsearch$
set ignorecase$
set smartcase$
set wildmode = list$
and unfortunately I am not able to delete them in the editor. Are there any comments on how to get rid of these '$' signs? Has anyone else encountered this problem before?
Thanks in advance!
The line set wildmode = list is wrong, it should be set wildmode=list no spaces.
The line as it is queries the wildmode option and sets the boolean list option
It’s because you said set list.
Go check for init.vim file.
For me that file was at /home/user/.config/nvim/init.vim
And it was turn on "See invisible characters":
set list listchars=tab:>\ ,trial:+,eol:&
Delete or comment the line.

ControlCommand in AutoIt v3

I am trying to use ControlCommands with a .NET application (hence, these should all be standard Microsoft controls), but most of the ones that are of interest don't seem to do anything.
I am currently looking at a combobox (the drop down box). I used the "showdropdown" command to have it drop down, and it worked successfully.
I then tried to use "SelectString", but it didn't go to the string that I specified. How does the "SelectString" ControlCommand option work?
I have also tried "SetCurrentSelection".
This is the statement I used:
ControlCommand($windowName, "", "[Name:myComboBox]", "SelectString", "a")
I have also tried searching for it first with:
ControlCommand($windowName, "", "[Name:myComboBox]", "FindString", "a")
but it didn't find it either. Strange, the single character "a" is there.
If it helps, this is the control class: WindowsForms10.COMBOBOX
_GUICtrlComboBox_xxx functions also work on external controls. For example, _GUICtrlComboBox_FindString, _GUICtrlComboBox_SelectString, _GUICtrlComboBox_SetCurSel. Try those instead.
Call ControlGetHandle first, then use this handle to call the functions above.
Remember to include the GuiComboBox library, otherwise you will get an error message "Error: Unknown function name":
#include <GuiComboBox.au3>
You can send key presses to this control, like this:
ControlSend("Window title", "", "[NAME:comboBoxName]", "ComboBox value")
It works because ComboBox interprets input as a search string and selects the first item starting with this string.
Note: Because it searches the matching item as you type, there's no need to send a complete value, only the shortest substring.

Why do <C-PageUp> and <C-PageDown> not work in vim?

I have Vim 7.2 installed on Windows. In GVim, the <C-PageUp> and <C-PageDown> work for navigation between tabs by default. However, it doesn't work for Vim.
I have even added the below lines in _vimrc, but it still does not work.
map <C-PageUp> :tabp<CR>
map <C-PageDown> :tabn<CR>
But, map and works.
map <C-left> :tabp<CR>
map <C-right> :tabn<CR>
Does anybody have a clue why?
The problem you describe is generally caused by vim's terminal settings not knowing the correct character sequence for a given key (on a console, all keystrokes are turned into a sequence of characters). It can also be caused by your console not sending a distinct character sequence for the key you're trying to press.
If it's the former problem, doing something like this can work around it:
:map <CTRL-V><CTRL-PAGEUP> :tabp<CR>
Where <CTRL-V> and <CTRL-PAGEUP> are literally those keys, not "less than, C, T, R, ... etc.".
If it's the latter problem then you need to either adjust the settings of your terminal program or get a different terminal program. (I'm not sure which of these options actually exist on Windows.)
This may seem obvious to many, but konsole users should be aware that some versions bind ctrl-pageup / ctrl-pagedown as secondary bindings to it's own tabbed window feature, (which may not be obvious if you don't use that feature).
Simply clearing them from the 'Configure Shortcuts' menu got them working in vim correctly for me. I guess other terminals may have similar features enabeld by default.
I'm adding this answer, taking details from vi & Vim, to integrate those that are already been given/accepted with some more details that sound very important to me.
The alredy proposed answers
It is true what the other answer says:
map <C-PageUp> :echo "hello"<CR> won't work because Vim doesn't know what escape sequence corresponds to the keycode <C-PageUp>;
one solution is to type the escape sequence explicitly: map ^[[5^ :echo "hello"<CR>, where the escape sequence ^[[5^ (which is in general different from terminal to terminal) can be obtained by Ctrl+VCtrl+PageUp.
One additional important detail
On the other hand the best solution for me is the following
set <F13>=^[[5^
map <F13> :echo "hello"<CR>
which makes use of one of additional function key codes (you can use up to <F37>). Likewise, you could have a bunch of set keycode=escapesequence all together in a single place in your .vimrc (or in another dedicated file that you source from your .vimrc, why not?).

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