QDevelop, a new IDE for Qt4

[TheRonin]

Hello!

I'm still having problems with code completion. I've downloaded ctags 554 and linked to the executable with 'external tools', and as a function check, the class list works great.

But the code completion works only sporadically, and when it does work it takes forever to bring up a list of suggestions. When i type just about anything except an actual variable followed by '->' or '.', i get a list of constants.
ex:

asdf<ctrl+space>

asdf<ctrl+space>

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Also, typing a variable and then '->' or '.' doesn't give me any code completion alternatives:

QString str = "this is a test";
str.<ctrl+space>

QString str = "this is a test";
str.<ctrl+space>

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In that case, and cases like it, the code completion command doesn't do anything. Is it just me or are others having this problem? Any suggestions on how to fix it are warmly welcomed!

I'm using qDevelop 0.21, qt 4.2.2, exuberant ctags 554, windows xp pro.

[jlbrd]

THRESHE: In your previous post, make is launched in "C:/Saves/Dev-Cpp/bin" directory and it not good. In qdevelop, open the dialog "tools | external tools" and choose, for make, "mingw32-make.exe" in the mingw/bin directory. On my XP, it's "C:\MinGW\bin\mingw32-make.exe".

TheRonin: The completion work only with Qt4 classes and not with your application classes. In addition, you must add at the begin on your cpp file, the #include for your class. In your example, add #include <QString> on top of your file and completion certainly work.

For all : You can donate here: http://qdevelop.org/donate.php

[GreyGeek]

I installed QDevelop on my SimplyMEPIS32 6.5 beta7 and it works beautifully, including code completion. Thanks for a very find tool.
Send me a snail mail address and I'll send you a donation!

I moved to PCLinuxOS 2007 and QDevelop works well under it, too!

[jlbrd]

A new version 0.23 is available on qdevelop server:

Corrections:
- Prevents the opening of the same file in several tab.
The code completion works now with the classes created in the project.
When the IDE auto-completes some code, it also add the "()" after the cursor, and place the cursor in the best position
possible.
- Fix a problem with packaged versions of QDevelop. With these versions, the code completion did not work.

Adds:
- Add Portuguese translation thanks to Giuliano Santana
- Add Vietnamese translation. Thanks to Chuong Nguyen
- In subclassing, the code is now added in editor if the file is opened in tab (before, the code was added always in files on disk, even with the file opened).

[Ebson]

It is a great project
I have tried before to make something like that, but you did more than what I would expect

it is working smoothly, everything is fine except the code completion
it works but not as I expected
for example in this code

frmMain::frmMain( QWidget * parent, Qt::WFlags f)
        : QMainWindow(parent, f)
{
    setupUi(this);
    this->(Ctrl+Space)
}

frmMain::frmMain( QWidget * parent, Qt::WFlags f)
        : QMainWindow(parent, f)
{
    setupUi(this);
    this->(Ctrl+Space)
}

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I am expecting here to get list of all functions, properties of the QMainWindow class
but what i get is only one lonely function "frmMain()"

i have exuberant-ctags (version 5.6) installed
class browser works fine

[Ebson]

Problem fixed
I have added "-R" to the command line arguments

QString command = ctagsCmdPath + " -R -f \"" + tagsFilePath +
"\" --append --language-force=c++ --fields=afiKmsSzn --c++-kinds=cdefgmnpstuvx -L \""
+ tagsIncludesPath + '\"';

in the file InitCompletion

[jlbrd]

Your modification seems not the good solution because without "-R" I have the completion for the QMainWindow.

[KaptainKarl]

I'm using QDevelop 2.1 with QT 4.2.2 in Suse and RHEL. Wonderful product.
I have a couple of questions:

1. How do I make the debugger see src files that are in a src subdirectory of the project? When I run the debugger it always says "cannot find main.cpp".

2. How can I alter the settings for a library to create an archive lib (.a) instead of a shared object (.so)?

Thanks!
Karl

[jlbrd]

Hi KaptainKarl,

1. How do I make the debugger see src files that are in a src subdirectory of the project? When I run the debugger it always says "cannot find main.cpp".

In debugging, QDevelop opens automatically the project sources files. So I think it's a problem with your Qt library installed. Certainly you don't have Qt built in debug mode.

2. How can I alter the settings for a library to create an archive lib (.a) instead of a shared object (.so)?

Go to "Project | Properties" then enable "Advanced Mode". You have a checkbox "staticlib". Certainly work for your request (but I don't test it).

A newest version that 0.21 is available on http://qdevelop.org

[elcuco]

it will fail if you are debugging sub-projects.

[jlbrd]

it will fail if you are debugging sub-projects.

I created two sub-projects in debugging mode and the cursor is well placed on breakpoint.

[elcuco]

I will try to reproduce my problem and send it to you in the next few days.

[ufo-vl]

jlbrd,
Good program, thanks :-).

[KaptainKarl]

Hello,

I just upgraded to QT 4.3 and while I was at it, I upgraded QDevelop to 0.23. I tried to build an application that worked under QT 4.2.2 and QDevelop 0.21.

The application includes a LIBS variable that is set to the following:
"-L../lib -lSMART"

When I try to build it in QDevelop, I get an undefined reference from the library I'm pointing to with the variable.

When I try to build from the command line, I get the following:
#> ~/QTProjects/SMART/SMRTsum> gmake
g++ -Wl,-rpath,/usr/local/Trolltech/QT4.3_STATIC/lib -o SMRTsum main.o -L/usr/local/Trolltech/QT4.3_STATIC/lib -L../lib\ -lSMART -lQtSql -L/usr/lib/mysql -lmysqlclient_r -lz -lcrypt -lnsl -lc -lnss_files -lnss_dns -lresolv -lodbc -pthread -L/opt/gnome/lib -pthread -L/usr/X11R6/lib -lpng -lSM -lICE -pthread -pthread -lXi -lXrender -lXrandr -lXfixes -lXcursor -lXinerama -lfreetype -lfontconfig -lXext -lX11 -lQtCore -lm -pthread -lgthread-2.0 -lglib-2.0 -lrt -ldl -lpthread
main.o: In function `main':
main.cpp.text+0x14fe): undefined reference to `getStateID(unsigned long)'
collect2: ld returned 1 exit status
gmake: *** [SMRTsum] Error 1

As you can see, there is a mysterious "\" after the "-L../lib".
If I edit the Makefile manually and take this "\" out, the compile works.

Is this a bug in QDevelop or am I entering the value of the LIBS Variable incorrectly?

Thanks,
Karl

[ufo-vl]

I have found bug in QDevelop 0.23

Excuse me, I do not have opportunity to get an account on google for reporting in http://code.google.com/p/qdevelop/issues/list.

Step for reproduce:
1. Сreate empty project
2. Right click on project file (*.pro)
3. Select "add new file"
4. Select source file.
5. Input file name
6. In shown dialog press Yes or No

Expected result: file(s) was created

Actual result: could not create file dialog was shown.

Dup for this issue: "Create new class" from context menu.

OS: Win XP Pro SP2
Qt ver: 4.3
QDevelop ver: 0.23

Problem: QDevelop not create directory "src, ..." for new files. As result: attempt to create a file in a nonexistent directory

Sorry for my bad english
Thanks.

[dave]

Recently I started using Ubuntu (feisty). This is my first foray into linux, so this maybe a linux problem, I don't know.
On windows I have no problem whatsoever with QDevelop.
on ubuntu I compiled and run QDevelop fine. Also used it to compile exsisting projects fine. But anything I try to do in Project Explorer window doesn't work. For example, if I try to right-click and choose delete the project - I get "unable to delete the main project". If I right-click and add new item, a cpp file, etc, I get "unable to create file".
I thought this might be a permission issue, so I run Qdevelop as root, also changed its group and ownership to root, and am still getting the same problem.
Any idea? It's probably a simple thing that I don't know...

EDIT: Sorry, meant to post this in the Qdevelop questions thread..

[jlbrd]

You have a problem because you have created a project with a template "subdirs". A "subdirs" project can contains only other projects. In this kind of project, it is not possible to add files. And it is not possible to delete the main project, you can close it instead.
This behavior is the same with all platforms and is not a Linux problem.

If you want to create a classical project (without sub-projects), choose "app" to template in the Options dialog.

[patrik08]

I found tab indent error on QDevelop... on version window... maybe linux also.. sf.net download latest...

Indent tab one line remove line...

i rewrite so...

void TextEdit::IndentText( bool make )    /* make == keyPressEvent  tab + false - */
{
    /* baseram = QApplication::clipboard();   */
    QTextCursor curseurActuel = textCursor();
    QTextCursor c = textCursor();
    /* no text selection move tabulator */
    if ( make && c.selectedText().isEmpty() )
    {
        if ( m_tabSpaces )
        {
            int nbSpaces = tabStopWidth() / fontMetrics().width( " " );
            for (int i = 0; i<nbSpaces; i++)  {
                c.insertText( " " );
            }
        }
        else { 
            if ( m_tabSpaces )
            {
                int nbSpaces = tabStopWidth() / fontMetrics().width( " " );
                for (int i = 0; i<nbSpaces; i++) {
                    c.insertText( " " );
                }
            }
            else {
                c.insertText( "\t" );
            }
        }
        return;
    }  else 
           /* having text to tabulator */
          if ( make && !c.selectedText().isEmpty() ) {
 
 
          int startb = c.selectionStart();
          int endb = c.selectionEnd();
 
          c.setPosition(startb, QTextCursor::MoveAnchor);
          c.movePosition(QTextCursor::StartOfLine, QTextCursor::MoveAnchor);
          QTextBlock blocStart = c.block();
 
          c.setPosition(endb, QTextCursor::MoveAnchor);
          c.movePosition(QTextCursor::StartOfLine, QTextCursor::MoveAnchor);
          QTextBlock blocEnd = c.block();
 
          int position = 0;
          int startline;
          int stopline;
          int xli = 1;
 
            for ( QTextBlock block = document()->begin(); block.isValid(); block = block.next(), xli++) {
              if (blocStart.text() == block.text()) {
              startline = xli;
              }
              if (blocEnd.text() == block.text()) {
              stopline = xli;
              }
            }
 
 
            xli = 1;
 
                if (stopline > startline) {
                         //////qDebug() << "### ok line greats   ";
                         QString greppitxt = GrepTextLines(startline,stopline);
                         //////qDebug() << "### txt indent   " << greppitxt;
                         if (greppitxt.size() > 0) {
                         cut();
                         baseram->clear();
                         baseram->setText(greppitxt,QClipboard::Clipboard);
                         paste();
                         selectLines(startline,stopline);
                         QTextCursor c1 = textCursor();
                         c1.setPosition(c1.position() - 1 ,QTextCursor::KeepAnchor);
                         setTextCursor( c1 );
                         ensureCursorVisible();
                         }
                return;
                }  else if ( stopline == startline ) {
                        //////qDebug() << "### ok line greats   ";
                         QString greppitxto = GrepTextLines(startline,startline);
                         //////qDebug() << "### txt indent   " << greppitxt;
                         if (greppitxto.size() > 0) {
                         cut();
                         baseram->clear();
                         baseram->setText(greppitxto,QClipboard::Clipboard);
                         paste();
                         selectLines(startline,startline);
                         QTextCursor c2 = textCursor();
                         c2.setPosition(c2.position() - 1 ,QTextCursor::KeepAnchor);
                         setTextCursor( c2 );
                         ensureCursorVisible();
                         return;
                         }
 
                }
 
         }
 
}
 
 
QString TextEdit::GrepTextLines(int startline, int stopline )
{
QStringList  cuttextlist;
cuttextlist.clear();
int xli = 1;
for ( QTextBlock block = document()->begin(); block.isValid(); block = block.next(), xli++) {
   if (xli == startline || xli > startline) {
            if (xli == stopline || xli < stopline) {
            cuttextlist.append(GrepLineFromTxBloc(block));
            ////////qDebug() << "### cat line GrepTextLines  " << xli;
            }
   }
}
return cuttextlist.join("\n");
}
 
 
 
QString TextEdit::GrepLineFromTxBloc( QTextBlock block )
{
        QString linetext = "";
        if ( m_tabSpaces )   /* if tabulator key on? */
        {
            int nbSpaces = tabStopWidth() / fontMetrics().width( " " );
            for (int i = 0; i<nbSpaces; i++)  {
                linetext.append( " " );
            }
            linetext.append(block.text());
 
        } else {
        linetext.append(block.text());
        }
 
  return linetext;
}
 
 
void TextEdit::selectLines(int debut, int fin)    /* start end */
{
    if ( debut > fin )
        qSwap( debut, fin);
    QTextCursor c = textCursor();
    c.movePosition(QTextCursor::Start );
    c.movePosition(QTextCursor::Down, QTextCursor::MoveAnchor, debut - 1 );
    c.movePosition(QTextCursor::Down, QTextCursor::KeepAnchor, fin-debut + 1);
    setTextCursor( c );
    ensureCursorVisible();
}

void TextEdit::IndentText( bool make )    /* make == keyPressEvent  tab + false - */
{
    /* baseram = QApplication::clipboard();   */
    QTextCursor curseurActuel = textCursor();
    QTextCursor c = textCursor();
    /* no text selection move tabulator */
    if ( make && c.selectedText().isEmpty() )
    {
        if ( m_tabSpaces )
        {
            int nbSpaces = tabStopWidth() / fontMetrics().width( " " );
            for (int i = 0; i<nbSpaces; i++)  {
                c.insertText( " " );
            }
        }
        else { 
            if ( m_tabSpaces )
            {
                int nbSpaces = tabStopWidth() / fontMetrics().width( " " );
                for (int i = 0; i<nbSpaces; i++) {
                    c.insertText( " " );
                }
            }
            else {
                c.insertText( "\t" );
            }
        }
        return;
    }  else 
           /* having text to tabulator */
          if ( make && !c.selectedText().isEmpty() ) {
    
    
          int startb = c.selectionStart();
          int endb = c.selectionEnd();
          
          c.setPosition(startb, QTextCursor::MoveAnchor);
          c.movePosition(QTextCursor::StartOfLine, QTextCursor::MoveAnchor);
          QTextBlock blocStart = c.block();

          c.setPosition(endb, QTextCursor::MoveAnchor);
          c.movePosition(QTextCursor::StartOfLine, QTextCursor::MoveAnchor);
          QTextBlock blocEnd = c.block();
          
          int position = 0;
          int startline;
          int stopline;
          int xli = 1;
          
            for ( QTextBlock block = document()->begin(); block.isValid(); block = block.next(), xli++) {
              if (blocStart.text() == block.text()) {
              startline = xli;
              }
              if (blocEnd.text() == block.text()) {
              stopline = xli;
              }
            }
            
            
            xli = 1;

                if (stopline > startline) {
                         //////qDebug() << "### ok line greats   ";
                         QString greppitxt = GrepTextLines(startline,stopline);
                         //////qDebug() << "### txt indent   " << greppitxt;
                         if (greppitxt.size() > 0) {
                         cut();
                         baseram->clear();
                         baseram->setText(greppitxt,QClipboard::Clipboard);
                         paste();
                         selectLines(startline,stopline);
                         QTextCursor c1 = textCursor();
                         c1.setPosition(c1.position() - 1 ,QTextCursor::KeepAnchor);
                         setTextCursor( c1 );
                         ensureCursorVisible();
                         }
                return;
                }  else if ( stopline == startline ) {
                        //////qDebug() << "### ok line greats   ";
                         QString greppitxto = GrepTextLines(startline,startline);
                         //////qDebug() << "### txt indent   " << greppitxt;
                         if (greppitxto.size() > 0) {
                         cut();
                         baseram->clear();
                         baseram->setText(greppitxto,QClipboard::Clipboard);
                         paste();
                         selectLines(startline,startline);
                         QTextCursor c2 = textCursor();
                         c2.setPosition(c2.position() - 1 ,QTextCursor::KeepAnchor);
                         setTextCursor( c2 );
                         ensureCursorVisible();
                         return;
                         }
                    
                }
  
         }

}


QString TextEdit::GrepTextLines(int startline, int stopline )
{
QStringList  cuttextlist;
cuttextlist.clear();
int xli = 1;
for ( QTextBlock block = document()->begin(); block.isValid(); block = block.next(), xli++) {
   if (xli == startline || xli > startline) {
            if (xli == stopline || xli < stopline) {
            cuttextlist.append(GrepLineFromTxBloc(block));
            ////////qDebug() << "### cat line GrepTextLines  " << xli;
            }
   }
}
return cuttextlist.join("\n");
}



QString TextEdit::GrepLineFromTxBloc( QTextBlock block )
{
        QString linetext = "";
        if ( m_tabSpaces )   /* if tabulator key on? */
        {
            int nbSpaces = tabStopWidth() / fontMetrics().width( " " );
            for (int i = 0; i<nbSpaces; i++)  {
                linetext.append( " " );
            }
            linetext.append(block.text());
          
        } else {
        linetext.append(block.text());
        }

  return linetext;
}


void TextEdit::selectLines(int debut, int fin)    /* start end */
{
    if ( debut > fin )
        qSwap( debut, fin);
    QTextCursor c = textCursor();
    c.movePosition(QTextCursor::Start );
    c.movePosition(QTextCursor::Down, QTextCursor::MoveAnchor, debut - 1 );
    c.movePosition(QTextCursor::Down, QTextCursor::KeepAnchor, fin-debut + 1);
    setTextCursor( c );
    ensureCursorVisible();
}

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[jlbrd]

Sorry but your code seems very complicated to fix a little problem. Before a modification of the code, can you describe exactly what problem occurs.

[patrik08]

Sorry but your code seems very complicated to fix a little problem. Before a modification of the code, can you describe exactly what problem occurs.

I fou
Indent tab one line remove line...

If i Indent tabulator -> <- the line is remove delete...

I discovery now QScintilla-1.73-gpl-2-snapshot-20070519 .... and i use that one.