QGridStarLayout - A Qt grid layout identical to WPF's star sized grid

[Tannz0rz]

Hey folks, I've had to go about designing my own layout that worked as a clone of WPF's Grid with "star sizing" capabilities, so I've done just that.

For more information on how star sizing works, please refer to this Stack Overflow post:
http://stackoverflow.com/questions/1...r-do-width-100

Example usage:

QGridDefinition mainGridDef;
 
mainGridDef.RowDefinition(0.03f);
mainGridDef.RowDefinition(0.08f);
mainGridDef.RowDefinition(0.94f);
mainGridDef.RowDefinition(0.08f);
mainGridDef.RowDefinition(0.03f);
 
mainGridDef.ColumnDefinition(0.03f);
mainGridDef.ColumnDefinition(0.2f);
mainGridDef.ColumnDefinition(0.03f);
mainGridDef.ColumnDefinition();
 
QGridStarLayout *mainGrid = new QGridStarLayout(mainGridDef);
 
mainGrid->addWidget(new QPushButton("Test"), 1, 1);
mainGrid->addWidget(new QPushButton("Test"), 3, 1);
 
QGridDefinition subGridDef;
 
subGridDef.RowDefinition(0.03f);
subGridDef.RowDefinition(0.15f);
subGridDef.RowDefinition();
subGridDef.RowDefinition(0.03f);
 
subGridDef.ColumnDefinition(0.2f);
subGridDef.ColumnDefinition(0.5f);
subGridDef.ColumnDefinition(0.2f);
 
QGridStarLayout *subGrid = new QGridStarLayout(subGridDef);
 
subGrid->addWidget(new QScrollBar(Qt::Orientation::Horizontal), 1, 1);
 
mainGrid->addLayout(subGrid, 0, 3, 5);
 
centralWidget()->setLayout(mainGrid);

QGridDefinition mainGridDef;

mainGridDef.RowDefinition(0.03f);
mainGridDef.RowDefinition(0.08f);
mainGridDef.RowDefinition(0.94f);
mainGridDef.RowDefinition(0.08f);
mainGridDef.RowDefinition(0.03f);

mainGridDef.ColumnDefinition(0.03f);
mainGridDef.ColumnDefinition(0.2f);
mainGridDef.ColumnDefinition(0.03f);
mainGridDef.ColumnDefinition();

QGridStarLayout *mainGrid = new QGridStarLayout(mainGridDef);

mainGrid->addWidget(new QPushButton("Test"), 1, 1);
mainGrid->addWidget(new QPushButton("Test"), 3, 1);

QGridDefinition subGridDef;

subGridDef.RowDefinition(0.03f);
subGridDef.RowDefinition(0.15f);
subGridDef.RowDefinition();
subGridDef.RowDefinition(0.03f);

subGridDef.ColumnDefinition(0.2f);
subGridDef.ColumnDefinition(0.5f);
subGridDef.ColumnDefinition(0.2f);

QGridStarLayout *subGrid = new QGridStarLayout(subGridDef);

subGrid->addWidget(new QScrollBar(Qt::Orientation::Horizontal), 1, 1);

mainGrid->addLayout(subGrid, 0, 3, 5);

centralWidget()->setLayout(mainGrid);

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An imgur album detailing the above code and their definitions (blue is mainGrid, red is subGrid):
http://imgur.com/a/aZDiH

Source: https://github.com/Tannz0rz/QGridStarLayout

Furthermore, if you see where the layout can be optimized, feel free to fork the repo and apply any necessary changes.

Regards,
Tannz0rz

[anda_skoa]

Nice work!

Though I would recommend to follow Qt's style for naming methods, i.e. start with a lower case letter and probably name them in a way they say what they are doing.
E.g. addRowDefinition() if it adds the definition of a new row. At least that is what it looks like.

Also it is usually not a good idea to call a custom class QSomething, that makes it look like a class from Qt and gets people confused when they can't find it in the documentation.

Cheers,
_

[Tannz0rz]

Thank you for the suggestions! I'll fix the naming conventions soon.