qformlayout.cpp File Reference

#include "qapplication.h"
#include "qdebug.h"
#include "qformlayout.h"
#include "qlabel.h"
#include "qlayout_p.h"
#include "qlayoutengine_p.h"
#include "qrect.h"
#include "qvector.h"
#include "qwidget.h"

Go to the source code of this file.

Classes
struct	QFormLayoutItem
class	QFormLayoutPrivate

Enumerations
enum	{ ColumnCount = 2 }

Functions
static Qt::Alignment	fixedAlignment (Qt::Alignment alignment, Qt::LayoutDirection layoutDirection)
static void	initLayoutStruct (QLayoutStruct &sl, QFormLayoutItem *item)
static int	spacingHelper (QWidget *parent, QStyle *style, int userVSpacing, bool recalculate, QFormLayoutItem *item1, QFormLayoutItem *item2, QFormLayoutItem *prevItem1, QFormLayoutItem *prevItem2)
static int	storageIndexFromLayoutItem (const QFormLayoutPrivate::ItemMatrix &m, QFormLayoutItem *item)
static void	updateFormLayoutItem (QFormLayoutItem *item, int userVSpacing, QFormLayout::FieldGrowthPolicy fieldGrowthPolicy, bool fullRow)

Variables
const uint	DefaultFieldGrowthPolicy = 255
const uint	DefaultRowWrapPolicy = 255

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
ColumnCount

Definition at line 130 of file qformlayout.cpp.

{ ColumnCount = 2 };

Function Documentation

fixedAlignment()

static Qt::Alignment fixedAlignment ( Qt::Alignment  alignment, Qt::LayoutDirection  layoutDirection  )

static

Definition at line 260 of file qformlayout.cpp.

Referenced by QFormLayoutPrivate::arrangeWidgets().

{
    if (layoutDirection == Qt::RightToLeft && alignment & Qt::AlignAbsolute) {
        // swap left and right, and eliminate absolute flag
        return Qt::Alignment((alignment & ~(Qt::AlignLeft | Qt::AlignRight | Qt::AlignAbsolute))
                             | ((alignment & Qt::AlignRight) ? Qt::AlignLeft : 0)
                             | ((alignment & Qt::AlignLeft) ? Qt::AlignRight : 0));
    } else {
        return alignment & ~Qt::AlignAbsolute;
    }
}

initLayoutStruct()

static void initLayoutStruct ( QLayoutStruct &  sl, QFormLayoutItem *  item  )

inlinestatic

Definition at line 646 of file qformlayout.cpp.

Referenced by QFormLayoutPrivate::setupVerticalLayoutData().

{
    sl.init(item->vStretch(), item->minSize.height());
    sl.sizeHint = item->sizeHint.height();
    sl.maximumSize = item->maxSize.height();
    sl.expansive = (item->expandingDirections() & Qt::Vertical);
    sl.empty = false;
}

spacingHelper()

static int spacingHelper ( QWidget *  parent, QStyle *  style, int  userVSpacing, bool  recalculate, QFormLayoutItem *  item1, QFormLayoutItem *  item2, QFormLayoutItem *  prevItem1, QFormLayoutItem *  prevItem2  )

inlinestatic

Definition at line 605 of file qformlayout.cpp.

Referenced by QFormLayoutPrivate::setupVerticalLayoutData().

{
    int spacing = userVSpacing;
    if (spacing < 0) {
        if (!recalculate) {
            if (item1)
                spacing = item1->vSpace;
            if (item2)
                spacing = qMax(spacing, item2->vSpace);
        } else {
            if (style && prevItem1) {
                QSizePolicy::ControlTypes itemtypes =
                    QSizePolicy::ControlTypes(item1 ? item1->controlTypes() : QSizePolicy::DefaultType);
                int spacing2 = 0;

                spacing = style->combinedLayoutSpacing(itemtypes, prevItem1->controlTypes(), Qt::Vertical, 0, parent);

                // At most of one of item2 and prevItem2 will be nonnull
                if (item2)
                    spacing2 = style->combinedLayoutSpacing(item2->controlTypes(), prevItem1->controlTypes(), Qt::Vertical, 0, parent);
                else if (prevItem2)
                    spacing2 = style->combinedLayoutSpacing(itemtypes, prevItem2->controlTypes(), Qt::Vertical, 0, parent);

                spacing = qMax(spacing, spacing2);
            }
        }
    } else {
        if (prevItem1) {
            QWidget *wid = prevItem1->item->widget();
            if (wid)
                spacing = qMax(spacing, prevItem1->geometry().top() - wid->geometry().top() );
        }
        if (prevItem2) {
            QWidget *wid = prevItem2->item->widget();
            if (wid)
                spacing = qMax(spacing, prevItem2->geometry().top() - wid->geometry().top() );
        }
    }
    return spacing;
}

storageIndexFromLayoutItem()

static int storageIndexFromLayoutItem ( const QFormLayoutPrivate::ItemMatrix &  m, QFormLayoutItem *  item  )

static

Definition at line 272 of file qformlayout.cpp.

Referenced by QFormLayout::getItemPosition(), and QFormLayout::takeAt().

{
    if (item) {
        return m.storage().indexOf(item);
    } else {
        return -1;
    }
}

updateFormLayoutItem()

static void updateFormLayoutItem ( QFormLayoutItem *  item, int  userVSpacing, QFormLayout::FieldGrowthPolicy  fieldGrowthPolicy, bool  fullRow  )

static

Definition at line 282 of file qformlayout.cpp.

Referenced by QFormLayoutPrivate::updateSizes().

{
    item->minSize = item->item->minimumSize();
    item->sizeHint = item->item->sizeHint();
    item->maxSize = item->item->maximumSize();

    if (!fullRow && (fieldGrowthPolicy == QFormLayout::FieldsStayAtSizeHint
                     || (fieldGrowthPolicy == QFormLayout::ExpandingFieldsGrow
                         && !(item->item->expandingDirections() & Qt::Horizontal))))
        item->maxSize.setWidth(item->sizeHint.width());

    item->isHfw = item->item->hasHeightForWidth();
    item->vSpace = userVSpacing;
}

Variable Documentation

DefaultFieldGrowthPolicy

const uint DefaultFieldGrowthPolicy = 255

Definition at line 127 of file qformlayout.cpp.

Referenced by QFormLayout::resetFieldGrowthPolicy().

DefaultRowWrapPolicy

const uint DefaultRowWrapPolicy = 255

Definition at line 128 of file qformlayout.cpp.

Referenced by QFormLayout::resetRowWrapPolicy().