QTextTable Topic

HoMa

Hi all, looking forward to your support!

Here is some code, that creates a table:


    QTextDocument* td =ui->te->document();
    td->clear();
    QTextCursor tc(td);

    tc.movePosition(QTextCursor::MoveOperation::End);
    QTextTable* table =tc.insertTable(3, 3);

    int row =0;
    QTextTableCell c00 =table->cellAt(row, 0);
    QTextTableCell c01 =table->cellAt(row, 1);
    QTextTableCell c02 =table->cellAt(row, 2);

    c00.firstCursorPosition().insertText(QStringLiteral("Header 0"));
    c01.firstCursorPosition().insertText(QStringLiteral("Header 1"));
    c02.firstCursorPosition().insertText(QStringLiteral("Header 2"));
    // this is bad 
    table->mergeCells(1,0, 1, 3);

Everything is fine: all columns are equally spaced, until I add the last line of code. The merging of row 2 changes the size of col1, so that the table looks awfull.
Anything wrong here?

Best regards
Holger

SGaist

Hi,

Which version of Qt are you using ?
On which platform ?
Can you show the results before and after you merge the cells ?

HoMa

Yeah - sure. A picture says more than words :). This is what you get w/o the merge:

And this is how it looks with the merge:

Not what I expected :(

And the Version: I am still with Qt 5 and keep my environment quite up to date: QtCreator's help shows this version: Based on Qt 5.15.2 (MSVC 2019, 64 bit)

Best regards
Holger

HoMa

Addenddum:
The effect is less bad, if the cell to be merged has set some text before it is merged:
... I can set the forground color, so that it is not visible - that can go as a workaround for now

Greetings
Holger

this is the updated source code:

QTextDocument* td =ui->te->document();
    td->clear();
    QTextCursor tc(td);
    tc.movePosition(QTextCursor::MoveOperation::End);
    QTextTable* table =tc.insertTable(3, 3);

    table->cellAt(1, 0).firstCursorPosition().insertText(QStringLiteral("some text before merging"));
    table->mergeCells(1,0, 1, 3);

    int row =0;
    QTextTableCell c00 =table->cellAt(row, 0);
    QTextTableCell c01 =table->cellAt(row, 1);
    QTextTableCell c02 =table->cellAt(row, 2);

    c00.firstCursorPosition().insertText(QStringLiteral("Header 0"));
    c01.firstCursorPosition().insertText(QStringLiteral("Header 1"));
    c02.firstCursorPosition().insertText(QStringLiteral("Header 2"));