[SOLVED] textEdit not letting me access any of its functions

rizoritis

Yes, I did clean the project and run qmake. Sorry, I forgot to mention that in my last post.

rizoritis

Just to clarify, nothing in my textEdit ("programTextEdit") works. I get the same error when I try accessing anything in the ui.

rizoritis

I played around. If I put the following lines:

@ ui->programTextEdit->setPlainText(line);
ui->runButton->setEnabled(true);
ui->pauseButton->setEnabled(true);@

in the constructor, I get no build error. The errors only come up if I throw it in a separate function within my source file. Why is that?

SGaist

Is your separate function a member of BasicGui ?

rizoritis

Yup. See below (displayProgram):

@#ifndef BASICGUI_H
#define BASICGUI_H

#include <QMainWindow>
#include <QtGui>
#include <QtCore>

namespace Ui {
class BasicGui;
}

class BasicGui : public QMainWindow
{
Q_OBJECT

public:
explicit BasicGui(QWidget *parent = 0);
~BasicGui();
static void displayProgram(QString);

private slots:
void on_selectProgramButton_clicked();
void on_loadProgramButton_clicked();

private:
Ui::BasicGui *ui;

};

#endif // BASICGUI_H@

SGaist

So you are trying to modify a private class member from a static function ?

That's not allowed

rizoritis

[quote author="SGaist" date="1368717950"]So you are trying to modify a private class member from a static function ?

That's not allowed[/quote]

OK, I made the function non-static, but am now getting a function saying "error: C2352: 'BasicGui::displayProgram' : illegal call of non-static member function" when trying to call the function from another class/file with the following code:

@ BasicGui::displayProgram(aPath);@

raven-worx

@
ui->displayProgram(aPath);
@

rizoritis

[quote author="raven-worx" date="1368719638"]@
ui->displayProgram(aPath);
@[/quote]

displayProgram() is from another class (Ui::BasicGui) so when I do that it says that displayProgram is not a member of the class that I am making the call in (which in this case is called Ui::SelectFile).

rizoritis

I got it to work. I didn't make an object of BasicGui in my SelectFile class. I did the following for it to work:

@public:
explicit SelectFile(QWidget *parent = 0);
~SelectFile();
BasicGui *basicgui;
@

Then I made a call to basicgui->displayProgram()

SGaist

Your code looks like it's getting messy. You are starting to have pointers to objects not directly related to those you are using.

May I suggest reading some of the examples from the Qt documentation ?

Typically updating your line edit content from another widget should be done using signals and slots (Unless I misunderstood your code). Or if SelectFile is a dialog to select a file (like the name suggests) why not use QFileDialog from BasicGui and directly update the line edit ?

rizoritis

OK. I will do some HW. Thanks!