qtextcursor setposition doesn't work

Hello,

in a program I have the following code:

Code:

---

void FindWidget::slotClose() {
    cursor = mTextpage->textCursor();
    qDebug() << "cursor position on close start: " << cursor.position();
    if ( cursor.position() == -1) {
        cursor.setPosition(QTextCursor::Start,QTextCursor::MoveAnchor);
        qDebug() << "cursor position after setPosition: " << cursor.position();
 
        mTextpage->setTextCursor(cursor);
    }
    mTextpage->setFocus();
    close();
}

---

Example output is the following

Code:

---

cursor position on close start:  -1 
cursor position after setPosition:  -1

---

Anyone got an idea, what's goind wrong here? I also tried, not to use cursor as member and used the following instead:

Code:

---

QTextCursor cursor = mTextpage->textCursor();

---

Also, same result.

Thanks in advance for any help.

You're not changing the position of the cursor. For this:-

Code:

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cursor.setPosition(int);

---

but in line 5, I have

Code:

---

cursor.setPosition(QTextCursor::Start,QTextCursor::MoveAnchor);

---

I also tried the following line instead:

Code:

---

cursor.setPosition(0);

---

Oh! I didnt see that.

Code:

---

void FindWidget::slotClose() {
    cursor = mTextpage->textCursor();
    qDebug() << "cursor position on close start: " << cursor.position();
    if ( cursor.position() == -1) {
        cursor.movePosition(QTextCursor::Start,QTextCursor::MoveAnchor);    // Use move position instead of setPosition
        qDebug() << "cursor position after setPosition: " << cursor.position();
 
        mTextpage->setTextCursor(cursor);
    }
    mTextpage->setFocus();
    close();
}

---

got it or not.
Dont forget to hit thanks button.

Thanks for your answer, but I this also doesn't work, same result with this.
The output again shows -1 for the position of the cursor after the moveposition.
I've got more and more the impression, that I'm dealing with a bug here.
I tried the following lines instead of line 5, nothing worked correctly:

Code:

---

cursor.movePosition(QTextCursor::Start,QTextCursor::MoveAnchor);
cursor.movePosition(QTextCursor::Start);
cursor.setPosition(QTextCursor::Start);
cursor.setPosition(0);

---

In line 2, I use

Code:

---

QTextCursor cursor = mTextpage->textCursor();

---

I've added the .cpp and the .h file. Perhaps the I missed something else, what's wrong.

Could you state what is the result you are trying to achieve?

The cursor gets the position -1, when no match is found in the text. Unfortunately, the text isn't editable anymore after the closing of the findwidget, if the cursor has position -1.
Now my aim is, that I want to set the cursor to the start of the text, if no match is found and the widget is closed.

Quote:

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Originally Posted by doc_symbiosis

The cursor gets the position -1, when no match is found in the text. Unfortunately, the text isn't editable anymore after the closing of the findwidget, if the cursor has position -1.

---

So don't put it at position -1 when there is no match.

Quote:

---

Now my aim is, that I want to set the cursor to the start of the text, if no match is found and the widget is closed.

---

Code:

---

QTextCursor cursor(textEdit->document());
textEdit->setTextCursor(cursor);

---

But the cursor is set to -1 when no match is found by the find method in the findslot:

Code:

---

void FindWidget::slotFind()
{
    QTextCursor cursor = mTextpage->textCursor();
 
    if (cursor.anchor() == -1) {
        cursor = mTextpage->document()->find(findEdit->text(), cursor, QTextDocument::FindCaseSensitively);
    } else {
        cursor = mTextpage->document()->find(findEdit->text(), cursor.anchor(), QTextDocument::FindCaseSensitively);
    }
    mTextpage->setTextCursor(cursor);
    this->setBackground();
}

---

So my thought was, to set the position of the cursor in the slotClose to 0, if it is -1. But this doesn't work and I definetly don't understand why.

Quote:

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Originally Posted by doc_symbiosis

But the cursor is set to -1 when no match is found by the find method in the findslot:

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So don't put it there! Just don't call setTextCursor() if you don't want to.

Quote:

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So my thought was, to set the position of the cursor in the slotClose to 0, if it is -1. But this doesn't work and I definetly don't understand why.

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It doesn't work because the cursor is invalid. It's probably even not tied to your document. Use the code I gave you in my previous post instead.