conflicting packages
QwtDynGridLayout(3) | Qwt User's Guide | QwtDynGridLayout(3) |
NAME¶
QwtDynGridLayout -SYNOPSIS¶
#include <qwt_dyngrid_layout.h>Public Member Functions¶
QwtDynGridLayout (QWidget *, int margin=0, int space=-1)
Protected Member Functions¶
void layoutGrid (uint numCols, QwtArray< int > &rowHeight, QwtArray< int > &colWidth) const
Detailed Description¶
The QwtDynGridLayout class lays out widgets in a grid, adjusting the number of columns and rows to the current size. QwtDynGridLayout takes the space it gets, divides it up into rows and columns, and puts each of the widgets it manages into the correct cell(s). It lays out as many number of columns as possible (limited by maxCols()).Constructor & Destructor Documentation¶
QwtDynGridLayout::QwtDynGridLayout (QWidget *parent, intmargin = 0, intspacing = -1) [explicit]¶
Parameters:parent Parent widget
margin Margin
spacing Spacing
QwtDynGridLayout::QwtDynGridLayout (intspacing = -1) [explicit]¶
Parameters:spacing Spacing
Member Function Documentation¶
uint QwtDynGridLayout::columnsForWidth (intwidth) const [virtual]¶
Calculate the number of columns for a given width. It tries to use as many columns as possible (limited by maxCols()) Parameters:width Available width for all columns
See also:
maxCols(), setMaxCols()
int QwtDynGridLayout::count () const [virtual]¶
Returns:Number of items in the layout
Qt::Orientations QwtDynGridLayout::expandingDirections () const [virtual]¶
Returns whether this layout can make use of more space than sizeHint(). A value of Qt::Vertical or Qt::Horizontal means that it wants to grow in only one dimension, while Qt::Vertical | Qt::Horizontal means that it wants to grow in both dimensions. See also:setExpandingDirections()
bool QwtDynGridLayout::hasHeightForWidth () const [virtual]¶
Returns:true: QwtDynGridLayout implements
heightForWidth.
See also:
heightForWidth()
int QwtDynGridLayout::heightForWidth (intwidth) const [virtual]¶
Returns:The preferred height for this layout, given the width
w.
See also:
hasHeightForWidth()
bool QwtDynGridLayout::isEmpty () const [virtual]¶
Returns:true if this layout is empty.
QLayoutItem * QwtDynGridLayout::itemAt (intindex) const [virtual]¶
Find the item at a spcific index Parameters:index Index
See also:
takeAt()
uint QwtDynGridLayout::itemCount () const¶
Returns:number of layout items
void QwtDynGridLayout::layoutGrid (uintnumCols, QwtArray< int > &rowHeight, QwtArray< int > &colWidth) const [protected]¶
Calculate the dimensions for the columns and rows for a grid of numCols columns. Parameters:numCols Number of columns.
rowHeight Array where to fill in the calculated row heights.
colWidth Array where to fill in the calculated column widths.
QList< QRect > QwtDynGridLayout::layoutItems (const QRect &rect, uintnumCols) const¶
Calculate the geometries of the layout items for a layout with numCols columns and a given rect. Parameters:rect Rect where to place the items
numCols Number of columns
Returns:
item geometries
uint QwtDynGridLayout::maxCols () const¶
Return the upper limit for the number of columns. 0 means unlimited, what is the default. See also:setMaxCols()
int QwtDynGridLayout::maxItemWidth () const [virtual]¶
Returns:the maximum width of all layout items
uint QwtDynGridLayout::numCols () const¶
Returns:Number of columns of the current layout.
See also:
numRows()
Warning:
The number of columns might change whenever the geometry
changes
uint QwtDynGridLayout::numRows () const¶
Returns:Number of rows of the current layout.
See also:
numCols()
Warning:
The number of rows might change whenever the geometry
changes
void QwtDynGridLayout::setExpandingDirections (Qt::Orientationsexpanding)¶
Set whether this layout can make use of more space than sizeHint(). A value of Qt::Vertical or Qt::Horizontal means that it wants to grow in only one dimension, while Qt::Vertical | Qt::Horizontal means that it wants to grow in both dimensions. The default value is 0. Parameters:expanding Or'd orientations
See also:
expandingDirections()
void QwtDynGridLayout::setGeometry (const QRect &rect) [virtual]¶
Reorganizes columns and rows and resizes managed widgets within the rectangle rect. Parameters:rect Layout geometry
void QwtDynGridLayout::setMaxCols (uintmaxCols)¶
Limit the number of columns. Parameters:maxCols upper limit, 0 means unlimited
See also:
maxCols()
QSize QwtDynGridLayout::sizeHint () const [virtual]¶
Return the size hint. If maxCols() > 0 it is the size for a grid with maxCols() columns, otherwise it is the size for a grid with only one row. See also:maxCols(), setMaxCols()
void QwtDynGridLayout::stretchGrid (const QRect &rect, uintnumCols, QwtArray< int > &rowHeight, QwtArray< int > &colWidth) const [protected]¶
Stretch columns in case of expanding() & QSizePolicy::Horizontal and rows in case of expanding() & QSizePolicy::Vertical to fill the entire rect. Rows and columns are stretched with the same factor. See also:setExpanding(), expanding()
QLayoutItem * QwtDynGridLayout::takeAt (intindex) [virtual]¶
Find the item at a spcific index and remove it from the layout Parameters:index Index
See also:
itemAt()
Author¶
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