qdockarealayout.cpp File Reference

#include "QtGui/qapplication.h"
#include "QtGui/qwidget.h"
#include "QtGui/qtabbar.h"
#include "QtGui/qstyle.h"
#include "QtGui/qdesktopwidget.h"
#include "QtCore/qvariant.h"
#include "qdockarealayout_p.h"
#include "qdockwidget.h"
#include "qmainwindow.h"
#include "qwidgetanimator_p.h"
#include "qmainwindowlayout_p.h"
#include "qdockwidget_p.h"
#include <private/qlayoutengine_p.h>
#include <qpainter.h>
#include <qstyleoption.h>

Go to the source code of this file.

Enumerations
enum	{ StateFlagVisible = 1, StateFlagFloating = 2 }

Functions
static QRect	constrainedRect (QRect rect, const QRect &desktop)
static QRect	dockedGeometry (QWidget *widget)
static QInternal::DockPosition	dockPosHelper (const QRect &rect, const QPoint &_pos, Qt::Orientation o, bool nestingEnabled, QDockAreaLayoutInfo::TabMode tabMode)
static int	grow (QLayoutStruct &ls, int delta)
static void	paintSep (QPainter *p, QWidget *w, const QRect &r, Qt::Orientation o, bool mouse_over)
static int	qMax (int i1, int i2, int i3)
static int	qMin (int i1, int i2, int i3)
QMainWindowLayout *	qt_mainwindow_layout (const QMainWindow *window)
static int	realMaxSize (const QDockAreaLayoutInfo &info)
static int	realMinSize (const QDockAreaLayoutInfo &info)
static int	separatorMoveHelper (QVector< QLayoutStruct > &list, int index, int delta, int sep)
static int	shrink (QLayoutStruct &ls, int delta)
static quintptr	tabId (const QDockAreaLayoutItem &item)
static Qt::DockWidgetArea	toDockWidgetArea (QInternal::DockPosition pos)

Variables
static const int	zero = 0

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
StateFlagVisible
StateFlagFloating

Definition at line 66 of file qdockarealayout.cpp.

{ StateFlagVisible = 1, StateFlagFloating = 2 };

Function Documentation

constrainedRect()

static QRect constrainedRect ( QRect  rect, const QRect &  desktop  )

static

Definition at line 1864 of file qdockarealayout.cpp.

Referenced by QDockAreaLayout::restoreDockWidget(), and QDockAreaLayoutInfo::restoreState().

{
    if (desktop.isValid()) {
        rect.setWidth(qMin(rect.width(), desktop.width()));
        rect.setHeight(qMin(rect.height(), desktop.height()));
        rect.moveLeft(qMax(rect.left(), desktop.left()));
        rect.moveTop(qMax(rect.top(), desktop.top()));
        rect.moveRight(qMin(rect.right(), desktop.right()));
        rect.moveBottom(qMin(rect.bottom(), desktop.bottom()));
    }

    return rect;
}

dockedGeometry()

static QRect dockedGeometry ( QWidget *  widget )

static

Definition at line 1135 of file qdockarealayout.cpp.

Referenced by QDockAreaLayoutInfo::insertGap().

{
    int titleHeight = 0;

    QDockWidgetLayout *layout
        = qobject_cast<QDockWidgetLayout*>(widget->layout());
    if(layout != 0 && layout->nativeWindowDeco())
        titleHeight = layout->titleHeight();

    QRect result = widget->geometry();
    result.adjust(0, -titleHeight, 0, 0);
    return result;
}

dockPosHelper()

static QInternal::DockPosition dockPosHelper ( const QRect &  rect, const QPoint &  _pos, Qt::Orientation  o, bool  nestingEnabled, QDockAreaLayoutInfo::TabMode  tabMode  )

static

Definition at line 643 of file qdockarealayout.cpp.

Referenced by QDockAreaLayoutInfo::gapIndex().

{
    if (tabMode == QDockAreaLayoutInfo::ForceTabs)
        return QInternal::DockCount;

    QPoint pos = _pos - rect.topLeft();

    int x = pos.x();
    int y = pos.y();
    int w = rect.width();
    int h = rect.height();

    if (tabMode != QDockAreaLayoutInfo::NoTabs) {
        // is it in the center?
        if (nestingEnabled) {
        /*             2/3
                +--------------+
                |              |
                |   CCCCCCCC   |
           2/3  |   CCCCCCCC   |
                |   CCCCCCCC   |
                |              |
                +--------------+     */

            QRect center(w/6, h/6, 2*w/3, 2*h/3);
            if (center.contains(pos))
                return QInternal::DockCount;
        } else if (o == Qt::Horizontal) {
        /*             2/3
                +--------------+
                |   CCCCCCCC   |
                |   CCCCCCCC   |
                |   CCCCCCCC   |
                |   CCCCCCCC   |
                |   CCCCCCCC   |
                +--------------+     */

            if (x > w/6 && x < w*5/6)
                return QInternal::DockCount;
        } else {
        /*
                +--------------+
                |              |
           2/3  |CCCCCCCCCCCCCC|
                |CCCCCCCCCCCCCC|
                |              |
                +--------------+     */
            if (y > h/6 && y < 5*h/6)
                return QInternal::DockCount;
        }
    }

    // not in the center. which edge?
    if (nestingEnabled) {
        if (o == Qt::Horizontal) {
    /*       1/3  1/3 1/3
            +------------+     (we've already ruled out the center)
            |LLLLTTTTRRRR|
            |LLLLTTTTRRRR|
            |LLLLBBBBRRRR|
            |LLLLBBBBRRRR|
            +------------+    */

            if (x < w/3)
                return QInternal::LeftDock;
            if (x > 2*w/3)
                return QInternal::RightDock;
            if (y < h/2)
                return QInternal::TopDock;
            return QInternal::BottomDock;
        } else {
    /*      +------------+     (we've already ruled out the center)
        1/3 |TTTTTTTTTTTT|
            |LLLLLLRRRRRR|
        1/3 |LLLLLLRRRRRR|
        1/3 |BBBBBBBBBBBB|
            +------------+    */

            if (y < h/3)
                return QInternal::TopDock;
            if (y > 2*h/3)
                return QInternal::BottomDock;
            if (x < w/2)
                return QInternal::LeftDock;
            return QInternal::RightDock;
        }
    } else {
        if (o == Qt::Horizontal) {
            return x < w/2
                    ? QInternal::LeftDock
                    : QInternal::RightDock;
        } else {
            return y < h/2
                    ? QInternal::TopDock
                    : QInternal::BottomDock;
        }
    }
}

grow()

static int grow ( QLayoutStruct &  ls, int  delta  )

inlinestatic

Definition at line 845 of file qdockarealayout.cpp.

Referenced by separatorMoveHelper().

{
    if (ls.empty)
        return 0;
    int old_size = ls.size;
    ls.size = qMin(ls.size + delta, ls.maximumSize);
    return ls.size - old_size;
}

paintSep()

static void paintSep ( QPainter *  p, QWidget *  w, const QRect &  r, Qt::Orientation  o, bool  mouse_over  )

static

Definition at line 1573 of file qdockarealayout.cpp.

Referenced by QDockAreaLayoutInfo::paintSeparators(), and QDockAreaLayout::paintSeparators().

{
    QStyleOption opt(0);
    opt.state = QStyle::State_None;
    if (w->isEnabled())
        opt.state |= QStyle::State_Enabled;
    if (o != Qt::Horizontal)
        opt.state |= QStyle::State_Horizontal;
    if (mouse_over)
        opt.state |= QStyle::State_MouseOver;
    opt.rect = r;
    opt.palette = w->palette();

    w->style()->drawPrimitive(QStyle::PE_IndicatorDockWidgetResizeHandle, &opt, p, w);
}

qMax()

static int qMax ( int  i1, int  i2, int  i3  )

inlinestatic

Definition at line 2581 of file qdockarealayout.cpp.

Referenced by constrainedRect(), QDockAreaLayoutInfo::fitItems(), QDockAreaLayout::getGrid(), QDockAreaLayoutInfo::maximumSize(), QDockAreaLayoutInfo::minimumSize(), QDockAreaLayout::minimumSize(), shrink(), QDockAreaLayoutInfo::sizeHint(), and QDockAreaLayout::sizeHint().

{ return qMax(i1, qMax(i2, i3)); }

qMin()

static int qMin ( int  i1, int  i2, int  i3  )

inlinestatic

Definition at line 2580 of file qdockarealayout.cpp.

Referenced by constrainedRect(), grow(), QDockAreaLayoutInfo::maximumSize(), and QDockAreaLayoutInfo::sizeHint().

{ return qMin(i1, qMin(i2, i3)); }

qt_mainwindow_layout()

QMainWindowLayout* qt_mainwindow_layout

(

const QMainWindow *

window

)

Definition at line 111 of file qmainwindow.cpp.

Referenced by QDockAreaLayout::apply(), QDockAreaLayoutInfo::mainWindowLayout(), and QDockAreaLayout::updateSeparatorWidgets().

{
    return QMainWindowPrivate::mainWindowLayout(mainWindow);
}

realMaxSize()

static int realMaxSize ( const QDockAreaLayoutInfo &  info )

static

Definition at line 508 of file qdockarealayout.cpp.

Referenced by QDockAreaLayoutInfo::fitItems().

{
    int result = 0;
    bool first = true;
    for (int i = 0; i < info.item_list.size(); ++i) {
        const QDockAreaLayoutItem &item = info.item_list.at(i);
        if (item.skip())
            continue;

        int max = 0;
        if ((item.flags & QDockAreaLayoutItem::KeepSize) && item.size != -1)
            max = item.size;
        else
            max = pick(info.o, item.maximumSize());

        if (!first)
            result += *info.sep;
        result += max;

        if (result >= QWIDGETSIZE_MAX)
            return QWIDGETSIZE_MAX;

        first = false;
    }

    return result;
}

realMinSize()

static int realMinSize ( const QDockAreaLayoutInfo &  info )

static

Definition at line 483 of file qdockarealayout.cpp.

Referenced by QDockAreaLayoutInfo::fitItems().

{
    int result = 0;
    bool first = true;
    for (int i = 0; i < info.item_list.size(); ++i) {
        const QDockAreaLayoutItem &item = info.item_list.at(i);
        if (item.skip())
            continue;

        int min = 0;
        if ((item.flags & QDockAreaLayoutItem::KeepSize) && item.size != -1)
            min = item.size;
        else
            min = pick(info.o, item.minimumSize());

        if (!first)
            result += *info.sep;
        result += min;

        first = false;
    }

    return result;
}

separatorMoveHelper()

static int separatorMoveHelper ( QVector< QLayoutStruct > &  list, int  index, int  delta, int  sep  )

static

Definition at line 854 of file qdockarealayout.cpp.

Referenced by QDockAreaLayoutInfo::separatorMove(), and QDockAreaLayout::separatorMove().

{
    // adjust sizes
    int pos = -1;
    for (int i = 0; i < list.size(); ++i) {
        const QLayoutStruct &ls = list.at(i);
        if (!ls.empty) {
            pos = ls.pos;
            break;
        }
    }
    if (pos == -1)
        return 0;

    if (delta > 0) {
        int growlimit = 0;
        for (int i = 0; i<=index; ++i) {
            const QLayoutStruct &ls = list.at(i);
            if (ls.empty)
                continue;
            if (ls.maximumSize == QLAYOUTSIZE_MAX) {
                growlimit = QLAYOUTSIZE_MAX;
                break;
            }
            growlimit += ls.maximumSize - ls.size;
        }
        if (delta > growlimit)
            delta = growlimit;

        int d = 0;
        for (int i = index + 1; d < delta && i < list.count(); ++i)
            d += shrink(list[i], delta - d);
        delta = d;
        d = 0;
        for (int i = index; d < delta && i >= 0; --i)
            d += grow(list[i], delta - d);
    } else if (delta < 0) {
        int growlimit = 0;
        for (int i = index + 1; i < list.count(); ++i) {
            const QLayoutStruct &ls = list.at(i);
            if (ls.empty)
                continue;
            if (ls.maximumSize == QLAYOUTSIZE_MAX) {
                growlimit = QLAYOUTSIZE_MAX;
                break;
            }
            growlimit += ls.maximumSize - ls.size;
        }
        if (-delta > growlimit)
            delta = -growlimit;

        int d = 0;
        for (int i = index; d < -delta && i >= 0; --i)
            d += shrink(list[i], -delta - d);
        delta = -d;
        d = 0;
        for (int i = index + 1; d < -delta && i < list.count(); ++i)
            d += grow(list[i], -delta - d);
    }

    // adjust positions
    bool first = true;
    for (int i = 0; i < list.size(); ++i) {
        QLayoutStruct &ls = list[i];
        if (ls.empty) {
            ls.pos = pos + (first ? 0 : sep);
            continue;
        }
        if (!first)
            pos += sep;
        ls.pos = pos;
        pos += ls.size;
        first = false;
    }

    return delta;
}

shrink()

static int shrink ( QLayoutStruct &  ls, int  delta  )

inlinestatic

Definition at line 836 of file qdockarealayout.cpp.

Referenced by separatorMoveHelper().

{
    if (ls.empty)
        return 0;
    int old_size = ls.size;
    ls.size = qMax(ls.size - delta, ls.minimumSize);
    return old_size - ls.size;
}

tabId()

static quintptr tabId ( const QDockAreaLayoutItem &  item )

static

Definition at line 218 of file qdockarealayout.cpp.

Referenced by QDockAreaLayout::addDockWidget(), QDockAreaLayoutInfo::itemRect(), QDockAreaLayoutInfo::restoreState(), QDockAreaLayoutInfo::saveState(), and QDockAreaLayoutInfo::updateTabBar().

{
    if (item.widgetItem == 0)
        return 0;
    return reinterpret_cast<quintptr>(item.widgetItem->widget());
}

toDockWidgetArea()

static Qt::DockWidgetArea toDockWidgetArea ( QInternal::DockPosition  pos )

static

Definition at line 1852 of file qdockarealayout.cpp.

Referenced by QDockAreaLayoutInfo::restoreState().

{
    switch (pos) {
        case QInternal::LeftDock:   return Qt::LeftDockWidgetArea;
        case QInternal::RightDock:  return Qt::RightDockWidgetArea;
        case QInternal::TopDock:    return Qt::TopDockWidgetArea;
        case QInternal::BottomDock: return Qt::BottomDockWidgetArea;
        default: break;
    }
    return Qt::NoDockWidgetArea;
}

Variable Documentation

zero

const int zero = 0

static

Definition at line 226 of file qdockarealayout.cpp.

Referenced by QLocalePrivate::digitToCLocale(), QLocalePrivate::doubleToString(), QTabWidget::heightForWidth(), QCss::ValueExtractor::lengthValues(), QLocalePrivate::longLongToString(), QDateTimeParser::parseFormat(), qt_bitmapToRegion(), QAccessibleHeader::rect(), QAccessibleTable2HeaderCell::rect(), unquote(), and QLocalePrivate::unsLongLongToString().