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Diffstat (limited to 'doc/man/man3/qtable.3qt')
| -rw-r--r-- | doc/man/man3/qtable.3qt | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/doc/man/man3/qtable.3qt b/doc/man/man3/qtable.3qt index 7b9ec4769..16ce0f622 100644 --- a/doc/man/man3/qtable.3qt +++ b/doc/man/man3/qtable.3qt @@ -519,11 +519,11 @@ Although many QTable functions operate in terms of rows and columns the indexOf( .SH "Cells" All of a QTable's cells are empty when the table is constructed. .PP -There are two approaches to populating the table's cells. The first and simplest approach is to use QTableItems or QTableItem subclasses. The second approach doesn't use QTableItems at all which is useful for very large sparse tables but retquires you to reimplement a number of functions. We'll look at each approach in turn. +There are two approaches to populating the table's cells. The first and simplest approach is to use QTableItems or QTableItem subclasses. The second approach doesn't use QTableItems at all which is useful for very large sparse tables but requires you to reimplement a number of functions. We'll look at each approach in turn. .PP -To put a string in a cell use setText(). This function will create a new QTableItem for the cell if one doesn't already exist, and displays the text in it. By default the table item's widget will be a QLineEdit. A pixmap may be put in a cell with setPixmap(), which also creates a table item if retquired. A cell may contain \fIboth\fR a pixmap and text; the pixmap is displayed to the left of the text. Another approach is to construct a QTableItem or QTableItem subclass, set its properties, then insert it into a cell with setItem(). +To put a string in a cell use setText(). This function will create a new QTableItem for the cell if one doesn't already exist, and displays the text in it. By default the table item's widget will be a QLineEdit. A pixmap may be put in a cell with setPixmap(), which also creates a table item if required. A cell may contain \fIboth\fR a pixmap and text; the pixmap is displayed to the left of the text. Another approach is to construct a QTableItem or QTableItem subclass, set its properties, then insert it into a cell with setItem(). .PP -If you want cells which contain comboboxes use the QComboTableItem class. Similarly if you retquire cells containing checkboxes use the QCheckTableItem class. These table items look and behave just like the combobox or checkbox widgets but consume far less memory. +If you want cells which contain comboboxes use the QComboTableItem class. Similarly if you require cells containing checkboxes use the QCheckTableItem class. These table items look and behave just like the combobox or checkbox widgets but consume far less memory. .PP .nf .br @@ -546,7 +546,7 @@ It is possible to use your own widget as a cell's widget using setCellWidget(), .PP For large, sparse, tables using QTableItems or other widgets is inefficient. The solution is to \fIdraw\fR the cell as it should appear and to create and destroy cell editors on demand. .PP -This approach retquires that you reimplement various functions. Reimplement paintCell() to display your data, and createEditor() and setCellContentFromEditor() to support in-place editing. It is very important to reimplement resizeData() to have no functionality, to prevent QTable from attempting to create a huge array. You will also need to reimplement item(), setItem(), takeItem(), clearCell(), and insertWidget(), cellWidget() and clearCellWidget(). In almost every circumstance (for sorting, removing and inserting columns and rows, etc.), you also need to reimplement swapRows(), swapCells() and swapColumns(), including header handling. +This approach requires that you reimplement various functions. Reimplement paintCell() to display your data, and createEditor() and setCellContentFromEditor() to support in-place editing. It is very important to reimplement resizeData() to have no functionality, to prevent QTable from attempting to create a huge array. You will also need to reimplement item(), setItem(), takeItem(), clearCell(), and insertWidget(), cellWidget() and clearCellWidget(). In almost every circumstance (for sorting, removing and inserting columns and rows, etc.), you also need to reimplement swapRows(), swapCells() and swapColumns(), including header handling. .PP If you represent active cells with a dictionary of QTableItems and QWidgets, i.e. only store references to cells that are actually used, many of the functions can be implemented with a single line of code. (See the table/bigtable/main.cpp example.) .PP |