qwtdyngridlayout.3

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.TH "QwtDynGridLayout" 3 "4 Nov 2003" "Qwt User's Guide" \" -*- nroff -*-
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.SH NAME
QwtDynGridLayout \- 
.SH SYNOPSIS
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.PP
.SH "Detailed Description"
.PP 
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 \fBmaxCols()\fP). 
.PP
.SS "Public Member Functions"

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.RI "\fBQwtDynGridLayout\fP (QWidget *, int margin=0, int space=-1, const  char *name=0)"
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.RI "\fBQwtDynGridLayout\fP (QLayout *, int space=-1, const  char *name=0)"
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.RI "\fBQwtDynGridLayout\fP (int space=-1, const  char *name=0)"
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.RI "virtual \fB~QwtDynGridLayout\fP ()"
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.RI "void \fBsetMaxCols\fP (uint maxCols)"
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.RI "uint \fBmaxCols\fP () const "
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.RI "uint \fBnumRows\fP () const "
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.RI "uint \fBnumCols\fP () const "
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.RI "virtual void \fBaddItem\fP (QLayoutItem *)"
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.RI "virtual QLayoutIterator \fBiterator\fP ()"
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.RI "virtual int \fBmaxItemWidth\fP () const "
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.RI "virtual void \fBsetGeometry\fP (const  QRect &rect)"
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.RI "virtual bool \fBhasHeightForWidth\fP () const "
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.RI "virtual int \fBheightForWidth\fP (int) const "
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.RI "virtual QSize \fBsizeHint\fP () const "
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.RI "void \fBsetExpanding\fP (QSizePolicy::ExpandData)"
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.RI "virtual QSizePolicy::ExpandData \fBexpanding\fP () const "
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.RI "virtual bool \fBisEmpty\fP () const "
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.RI "virtual uint \fBcolumnsForWidth\fP (int width) const "
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.RI "QValueList< QRect > \fBlayoutItems\fP (const  QRect &, uint numCols) const "
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.SS "Protected Member Functions"

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.RI "void \fBlayoutGrid\fP (uint numCols, QwtArray< int > &rowHeight, QwtArray< int > &colWidth) const "
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.RI "void \fBstretchGrid\fP (const  QRect &rect, uint numCols, QwtArray< int > &rowHeight, QwtArray< int > &colWidth) const "
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.SH "Constructor & Destructor Documentation"
.PP 
.SS "QwtDynGridLayout::QwtDynGridLayout (QWidget * parent, int margin = 0, int space = -1, const char * name = 0)"
.PP
\fBParameters:\fP
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\fIparent\fP Parent widget 
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\fImargin\fP Margin 
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\fIspace\fP Spacing 
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\fIname\fP Widget name 
.RE
.PP

.SS "QwtDynGridLayout::QwtDynGridLayout (QLayout * parent, int space = -1, const char * name = 0)"
.PP
\fBParameters:\fP
.RS 4
\fIparent\fP Parent widget 
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\fIspace\fP Spacing 
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\fIname\fP Widget name 
.RE
.PP

.SS "QwtDynGridLayout::QwtDynGridLayout (int space = -1, const char * name = 0)"
.PP
\fBParameters:\fP
.RS 4
\fIspace\fP Spacing 
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\fIname\fP Widget name 
.RE
.PP

.SS "QwtDynGridLayout::~\fBQwtDynGridLayout\fP ()\fC [virtual]\fP"
.PP
Destructor. 
.SH "Member Function Documentation"
.PP 
.SS "void QwtDynGridLayout::addItem (QLayoutItem *)\fC [virtual]\fP"
.PP
Adds item to the next free position. 
.SS "uint QwtDynGridLayout::columnsForWidth (int width) const\fC [virtual]\fP"
.PP
Calculate the number of columns for a given width. It tries to use as many columns as possible (limited by \fBmaxCols()\fP)
.PP
\fBParameters:\fP
.RS 4
\fIwidth\fP Available width for all columns 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtDynGridLayout::maxCols()\fP, \fBQwtDynGridLayout::setMaxCols()\fP 
.RE
.PP

.SS "QSizePolicy::ExpandData QwtDynGridLayout::expanding () const\fC [virtual]\fP"
.PP
Returns whether this layout can make use of more space than \fBsizeHint()\fP. A value of Vertical or Horizontal means that it wants to grow in only one dimension, while BothDirections means that it wants to grow in both dimensions. 
.PP
\fBSee also:\fP
.RS 4
\fBQwtDynGridLayout::setExpanding()\fP 
.RE
.PP

.SS "bool QwtDynGridLayout::hasHeightForWidth () const\fC [virtual]\fP"
.PP
\fBReturns:\fP
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TRUE: QwtDynGridLayout implements heightForWidth. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtDynGridLayout::heightForWidth()\fP 
.RE
.PP

.SS "int QwtDynGridLayout::heightForWidth (int width) const\fC [virtual]\fP"
.PP
\fBReturns:\fP
.RS 4
The preferred height for this layout, given the width w. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtDynGridLayout::hasHeightForWidth()\fP 
.RE
.PP

.SS "bool QwtDynGridLayout::isEmpty () const\fC [virtual]\fP"
.PP
\fBReturns:\fP
.RS 4
TRUE if this layout is empty. 
.RE
.PP

.SS "QLayoutIterator QwtDynGridLayout::iterator ()\fC [virtual]\fP"
.PP
\fBReturns:\fP
.RS 4
An iterator over the children of this layout. 
.RE
.PP

.SS "void QwtDynGridLayout::layoutGrid (uint numCols, QwtArray< int > & rowHeight, QwtArray< int > & colWidth) const\fC [protected]\fP"
.PP
Calculate the dimensions for the columns and rows for a grid of numCols columns. 
.PP
\fBParameters:\fP
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\fInumCols\fP Number of columns. 
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\fIrowHeight\fP Array where to fill in the calculated row heights. 
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\fIcolWidth\fP Array where to fill in the calculated column widths. 
.RE
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.SS "QValueList< QRect > QwtDynGridLayout::layoutItems (const QRect & rect, uint numCols) const"
.PP
Calculate the geometries of the layout items for a layout with numCols columns and a given rect. 
.PP
\fBParameters:\fP
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\fIrect\fP Rect where to place the items 
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\fInumCols\fP Number of columns 
.RE
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\fBReturns:\fP
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item geometries 
.RE
.PP

.SS "uint QwtDynGridLayout::maxCols () const"
.PP
Return the upper limit for the number of columns. 0 means unlimited, what is the default. 
.PP
\fBSee also:\fP
.RS 4
\fBQwtDynGridLayout::setMaxCols()\fP 
.RE
.PP

.SS "int QwtDynGridLayout::maxItemWidth () const\fC [virtual]\fP"
.PP
\fBReturns:\fP
.RS 4
the maximum width of all layout items 
.RE
.PP

.SS "uint QwtDynGridLayout::numCols () const"
.PP
\fBReturns:\fP
.RS 4
Number of columns of the current layout. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtDynGridLayout::numRows\fP 
.RE
.PP
\fBWarning:\fP
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The number of columns might change whenever the geometry changes 
.RE
.PP

.SS "uint QwtDynGridLayout::numRows () const"
.PP
\fBReturns:\fP
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Number of rows of the current layout. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtDynGridLayout::numCols\fP 
.RE
.PP
\fBWarning:\fP
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The number of rows might change whenever the geometry changes 
.RE
.PP

.SS "void QwtDynGridLayout::setExpanding (QSizePolicy::ExpandData expanding)"
.PP
Set whether this layout can make use of more space than \fBsizeHint()\fP. A value of Vertical or Horizontal means that it wants to grow in only one dimension, while BothDirections means that it wants to grow in both dimensions. The default value is NoDirection. 
.PP
\fBSee also:\fP
.RS 4
\fBQwtDynGridLayout::expanding()\fP 
.RE
.PP

.SS "void QwtDynGridLayout::setGeometry (const QRect & rect)\fC [virtual]\fP"
.PP
Reorganizes columns and rows and resizes managed widgets within the rectangle rect. 
.SS "void QwtDynGridLayout::setMaxCols (uint maxCols)"
.PP
Limit the number of columns. 
.PP
\fBParameters:\fP
.RS 4
\fImaxCols\fP upper limit, 0 means unlimited 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtDynGridLayout::maxCols()\fP 
.RE
.PP

.SS "QSize QwtDynGridLayout::sizeHint () const\fC [virtual]\fP"
.PP
Return the size hint. If \fBmaxCols()\fP > 0 it is the size for a grid with \fBmaxCols()\fP columns, otherwise it is the size for a grid with only one row. 
.PP
\fBSee also:\fP
.RS 4
\fBQwtDynGridLayout::maxCols()\fP, \fBQwtDynGridLayout::setMaxCols()\fP 
.RE
.PP

.SS "void QwtDynGridLayout::stretchGrid (const QRect & rect, uint numCols, QwtArray< int > & rowHeight, QwtArray< int > & colWidth) const\fC [protected]\fP"
.PP
Stretch columns in case of \fBexpanding()\fP & QSizePolicy::Horizontal and rows in case of \fBexpanding()\fP & QSizePolicy::Vertical to fill the entire rect. Rows and columns are stretched with the same factor. 
.PP
\fBSee also:\fP
.RS 4
\fBQwtDynGridLayout::setExpanding()\fP, \fBQwtDynGridLayout::expanding()\fP 
.RE
.PP


.SH "Author"
.PP 
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