OEImageGrid¶

class OEImageGrid

This class represents OEImageGrid which is a layout manager that aligns cells into rows and columns. The cells of the grid are equal-sized and evenly spaced. See Figure: Schematic representation of an OEImageGrid object.

Schematic representation of an OEImageGrid object¶

Note

In the image grid, each cell has the same width and height. The width and height of the cells are calculated based on the height and width of the OEImageGrid, its margins and gap set between the cells.

See also

Depicting Molecules in a Grid section
OEImageTable class

Constructors¶

OEImageGrid(OEImageBase &parent, unsigned int rows, unsigned int cols)

Creates an OEImageGrid object with the specified number of rows and columns.

parent: The OEImageBase object on which the OEImageGrid object is placed.
rows: The number of rows in the OEImageGrid object.
cols: The number of columns in the OEImageGrid object.

Note

The width and the height of the OEImageGrid object are identical to the width and height of the parent OEImageBase, respectively.

See also

OEImageGrid::NumCols method
OEImageGrid::NumRows method

GetCell¶

OEImageBase *GetCell(unsigned int r, unsigned int c)

Returns the OEImageBase pointer for the cell positioned in the \(r^{th}\) row and \(c^{th}\) columns.

r: This value has to be in the range from 1 to OEImageGrid::NumRows().
c: This value has to be in the range from 1 to OEImageGrid::NumCols().

GetCellGap¶

double GetCellGap() const

Returns the space between the cells of the OEImageGrid object.

See also

OEImageGrid::SetCellGap method

GetCellHeight¶

double GetCellHeight() const

Returns the height of the cells of the OEImageGrid object.

GetCellWidth¶

double GetCellWidth() const

Returns the width of the cells of the OEImageGrid object.

GetCells¶

OESystem::OEIterBase<OEImageBase> *GetCells(unsigned int row=0,
                                            unsigned int col=0)

Returns an iterator over the cells of the OEImageGrid object. The cells are returned from left to right and top to bottom order.

row: This value has to be in the range from 0 to OEImageGrid::NumRows().
col: This value has to be in the range from 0 to OEImageGrid::NumCols().

Example (Figure Example of accessing all cells of the grid)

for (OEIter<OEImageBase> ci = grid->GetCells(); ci; ++ci)

Example of accessing all cells of the grid.¶

(The numbers inside the cells represent the order in which the cells are returned)

If the col number is zero then OEImageGrid::GetCells returns an iterator over the cells of the specified row.

Example (Figure Example of accessing a specific row of the grid)

const auto row = 2u;
for (OEIter<OEImageBase> ci = grid->GetCells(row, 0u); ci; ++ci)

Example of accessing a specific row of the grid.¶

(The numbers inside the cells represent the order in which the cells are returned)

If the row number is zero then OEImageGrid::GetCells returns an iterator over the cells of the specified column.

Example (Figure Example of accessing a specific column of the grid)

const auto col = 2u;
for (OEIter<OEImageBase> ci = grid->GetCells(0u, col); ci; ++ci)

Example of accessing a specific column of the grid.¶

(The numbers inside the cells represent the order in which the cells are returned)

GetMargin¶

double GetMargin(unsigned int margin) const

Returns the size of a specific margin of the OEImageGrid object.

margin: This value has to be from the OEMargin namespace.

See also

OEImageGrid::SetMargin method
OEImageGrid::SetMargins method

NumCols¶

unsigned int NumCols() const

Returns the number of columns of the OEImageGrid object.

NumRows¶

unsigned int NumRows() const

Returns the number of rows of the OEImageGrid object.

SetCellGap¶

bool SetCellGap(double size)

Sets the space between the cells of the OEImageGrid object to the given size.

size: This value has to be a positive number.

See also

OEImageGrid::GetCellGap method

SetMargin¶

bool SetMargin(unsigned int margin, double size)

Sets the size of a specific margin of the OEImageGrid object.

margin: This value has to be from the OEMargin namespace.
size: This value has to be a positive number.

See also

OEImageGrid::GetMargin method

SetMargins¶

bool SetMargins(double size)

Sets the size of all margins of the OEImageGrid object.

size: This value has to be a positive number.

See also

OEImageGrid::GetMargin method