Appending text in a QTextEdit

jefazo92

Hi everyone,

I'm struggling a lot to append the text from a series of object files in an object array. The "display" function as I call it displays the contents of the object stored at a particular index when it is called. I'm using Qt and I'm trying to display my text on a QTextEdit. All items stored in the object are of type QString. Please any help would be really appreciated.

while (table[index] != NULL){
            if (table[index]->getIDNumber() == idstring){
                //Return to GUI all members !!!!!!

            }
            index = (index + 1)%TABLESIZE;

            index = (index + (int)(idNumber/TABLESIZE))%TABLESIZE;
        }

        ui->displayBrowser->setText("Hash value: " + QString::number(hashval)
                                    + ", ID No.: " + table[index]->getIDNumber()
                                    + ", Firstname: " + table[index]->getFirstname()
                                    + ", Vehicle: " + table[index]->getLastname()
                                    + ", Address: " + table[index]->getAddress()
                                    + ", Nation: " + table[index]->getNation()
                                    + ", Age: " + table[index]->getAge() + "\n");

Pl45m4

Hi @jefazo92

What exactly is the problem?

setText will print all properties from your current (indexed) item, but it overwrites the TextEdit, so I guess, you only see the properties from last index?!

Try to append the the data to a string within your while-loop and then set the whole string to your TextEdit.

VRonin

replace

ui->displayBrowser->setText("Hash value: " + QString::number(hashval)
                                    + ", ID No.: " + table[index]->getIDNumber()
                                    + ", Firstname: " + table[index]->getFirstname()
                                    + ", Vehicle: " + table[index]->getLastname()
                                    + ", Address: " + table[index]->getAddress()
                                    + ", Nation: " + table[index]->getNation()
                                    + ", Age: " + table[index]->getAge() + "\n");

with

QTextCursor curs(ui->displayBrowser->document());
curs.insertText("Hash value: " + QString::number(hashval)
                                    + ", ID No.: " + table[index]->getIDNumber()
                                    + ", Firstname: " + table[index]->getFirstname()
                                    + ", Vehicle: " + table[index]->getLastname()
                                    + ", Address: " + table[index]->getAddress()
                                    + ", Nation: " + table[index]->getNation()
                                    + ", Age: " + table[index]->getAge() + "\n");

jefazo92

Hi @Pl45m4 , I don't want to overwrite the textEdit, I want to see all the properties from all indices as they are being printed out.

jefazo92

@VRonin thank you for your post. I tried it but it didn't work. I have also used:

ui->displayBrowser->setText("Hash value: " + QString::number(hashval)
+ ", ID No.: " + table[index]->getIDNumber()
+ ", Firstname: " + table[index]->getFirstname()
+ ", Vehicle: " + table[index]->getLastname()
+ ", Address: " + table[index]->getAddress()
+ ", Nation: " + table[index]->getNation()
+ ", Age: " + table[index]->getAge() + "\n");

But the text is still overwriten since the GUI only prints the last entry.

SGaist

Hi,

What about QTextEdit::append ?

Pl45m4

@jefazo92

Currently you are overwriting. I know, that you dont want that.
setTextis wrong in your case. You can not use it to keep the output of all indices in your displayBrower.

setText("A");
// TextEdit contains "A"
setText("B")
// TextEdit contains "B", NOT "AB"

@VRonin s approach should work, if you do it right.