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+/****************************************************************************
+**
+** Implementation of TQHeader widget class (table header)
+**
+** Created : 961105
+**
+** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of the widgets module of the TQt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free TQt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing retquirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at sales@trolltech.com.
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
+** included in the packaging of this file. Licensees holding valid TQt
+** Commercial licenses may use this file in accordance with the TQt
+** Commercial License Agreement provided with the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#include "qheader.h"
+#ifndef QT_NO_HEADER
+#include "qpainter.h"
+#include "qdrawutil.h"
+#include "qpixmap.h"
+#include "qbitarray.h"
+#include "qptrvector.h"
+#include "qapplication.h"
+#include "qstyle.h"
+
+class TQHeaderData
+{
+public:
+ TQHeaderData(int n)
+ {
+ count = n;
+ labels.setAutoDelete( TRUE );
+ iconsets.setAutoDelete( TRUE );
+ sizes.resize(n);
+ positions.resize(n);
+ labels.resize(n);
+ if ( int( iconsets.size() ) < n )
+ iconsets.resize( n );
+ i2s.resize(n);
+ s2i.resize(n);
+ clicks.resize(n);
+ resize.resize(n);
+ int p =0;
+ for ( int i = 0; i < n; i ++ ) {
+ sizes[i] = 88;
+ i2s[i] = i;
+ s2i[i] = i;
+ positions[i] = p;
+ p += sizes[i];
+ }
+ clicks_default = TRUE;
+ resize_default = TRUE;
+ clicks.fill( clicks_default );
+ resize.fill( resize_default );
+ move = TRUE;
+ sortSection = -1;
+ sortDirection = TRUE;
+ positionsDirty = TRUE;
+ lastPos = 0;
+ fullSize = -2;
+ pos_dirty = FALSE;
+ is_a_table_header = FALSE;
+ focusIdx = 0;
+ }
+
+
+ TQMemArray<TQCOORD> sizes;
+ int height; // we abuse the heights as widths for vertical layout
+ bool heightDirty;
+ TQMemArray<TQCOORD> positions; // sorted by index
+ TQPtrVector<TQString> labels;
+ TQPtrVector<TQIconSet> iconsets;
+ TQMemArray<int> i2s;
+ TQMemArray<int> s2i;
+
+ TQBitArray clicks;
+ TQBitArray resize;
+ uint move : 1;
+ uint clicks_default : 1; // default value for new clicks bits
+ uint resize_default : 1; // default value for new resize bits
+ uint pos_dirty : 1;
+ uint is_a_table_header : 1;
+ bool sortDirection;
+ bool positionsDirty;
+ int sortSection;
+ int count;
+ int lastPos;
+ int fullSize;
+ int focusIdx;
+ int pressDelta;
+
+ int sectionAt( int pos ) {
+ // positions is sorted by index, not by section
+ if ( !count )
+ return -1;
+ int l = 0;
+ int r = count - 1;
+ int i = ( (l+r+1) / 2 );
+ while ( r - l ) {
+ if ( positions[i] > pos )
+ r = i -1;
+ else
+ l = i;
+ i = ( (l+r+1) / 2 );
+ }
+ if ( positions[i] <= pos && pos <= positions[i] + sizes[ i2s[i] ] )
+ return i2s[i];
+ return -1;
+ }
+};
+
+
+/*!
+ \class TQHeader qheader.h
+ \brief The TQHeader class provides a header row or column, e.g. for
+ tables and listviews.
+
+ \ingroup advanced
+
+ This class provides a header, e.g. a vertical header to display
+ row labels, or a horizontal header to display column labels. It is
+ used by TQTable and TQListView for example.
+
+ A header is composed of one or more \e sections, each of which can
+ display a text label and an \link TQIconSet iconset\endlink. A sort
+ indicator (an arrow) can also be displayed using
+ setSortIndicator().
+
+ Sections are added with addLabel() and removed with removeLabel().
+ The label and iconset are set in addLabel() and can be changed
+ later with setLabel(). Use count() to retrieve the number of
+ sections in the header.
+
+ The orientation of the header is set with setOrientation(). If
+ setStretchEnabled() is TRUE, the sections will expand to take up
+ the full width (height for vertical headers) of the header. The
+ user can resize the sections manually if setResizeEnabled() is
+ TRUE. Call adjustHeaderSize() to have the sections resize to
+ occupy the full width (or height).
+
+ A section can be moved with moveSection(). If setMovingEnabled()
+ is TRUE (the default)the user may drag a section from one position
+ to another. If a section is moved, the index positions at which
+ sections were added (with addLabel()), may not be the same after the
+ move. You don't have to worry about this in practice because the
+ TQHeader API works in terms of section numbers, so it doesn't matter
+ where a particular section has been moved to.
+
+ If you want the current index position of a section call
+ mapToIndex() giving it the section number. (This is the number
+ returned by the addLabel() call which created the section.) If you
+ want to get the section number of a section at a particular index
+ position call mapToSection() giving it the index number.
+
+ Here's an example to clarify mapToSection() and mapToIndex():
+
+ \table
+ \header \i41 Index positions
+ \row \i 0 \i 1 \i 2 \i 3
+ \header \i41 Original section ordering
+ \row \i Sect 0 \i Sect 1 \i Sect 2 \i Sect 3
+ \header \i41 Ordering after the user moves a section
+ \row \i Sect 0 \i Sect 2 \i Sect 3 \i Sect 1
+ \endtable
+
+ \table
+ \header \i \e k \i mapToSection(\e k) \i mapToIndex(\e k)
+ \row \i 0 \i 0 \i 0
+ \row \i 1 \i 2 \i 3
+ \row \i 2 \i 3 \i 1
+ \row \i 3 \i 1 \i 2
+ \endtable
+
+ In the example above, if we wanted to find out which section is at
+ index position 3 we'd call mapToSection(3) and get a section
+ number of 1 since section 1 was moved. Similarly, if we wanted to
+ know which index position section 2 occupied we'd call
+ mapToIndex(2) and get an index of 1.
+
+ TQHeader provides the clicked(), pressed() and released() signals.
+ If the user changes the size of a section, the sizeChange() signal
+ is emitted. If you want to have a sizeChange() signal emitted
+ continuously whilst the user is resizing (rather than just after
+ the resizing is finished), use setTracking(). If the user moves a
+ section the indexChange() signal is emitted.
+
+ <img src=qheader-m.png> <img src=qheader-w.png>
+
+ \sa TQListView TQTable
+*/
+
+
+
+/*!
+ Constructs a horizontal header called \a name, with parent \a
+ parent.
+*/
+
+TQHeader::TQHeader( TQWidget *parent, const char *name )
+ : TQWidget( parent, name, WStaticContents )
+{
+ orient = Horizontal;
+ init( 0 );
+}
+
+/*!
+ Constructs a horizontal header called \a name, with \a n sections
+ and parent \a parent.
+*/
+
+TQHeader::TQHeader( int n, TQWidget *parent, const char *name )
+ : TQWidget( parent, name, WStaticContents )
+{
+ orient = Horizontal;
+ init( n );
+}
+
+/*!
+ Destroys the header and all its sections.
+*/
+
+TQHeader::~TQHeader()
+{
+ delete d;
+ d = 0;
+}
+
+/*! \reimp
+ */
+
+void TQHeader::showEvent( TQShowEvent *e )
+{
+ calculatePositions();
+ TQWidget::showEvent( e );
+}
+
+/*!
+ \fn void TQHeader::sizeChange( int section, int oldSize, int newSize )
+
+ This signal is emitted when the user has changed the size of a \a
+ section from \a oldSize to \a newSize. This signal is typically
+ connected to a slot that repaints the table or list that contains
+ the header.
+*/
+
+/*!
+ \fn void TQHeader::clicked( int section )
+
+ If isClickEnabled() is TRUE, this signal is emitted when the user
+ clicks section \a section.
+
+ \sa pressed(), released()
+*/
+
+/*!
+ \fn void TQHeader::pressed( int section )
+
+ This signal is emitted when the user presses section \a section
+ down.
+
+ \sa released()
+*/
+
+/*!
+ \fn void TQHeader::released( int section )
+
+ This signal is emitted when section \a section is released.
+
+ \sa pressed()
+*/
+
+
+/*!
+ \fn void TQHeader::indexChange( int section, int fromIndex, int toIndex )
+
+ This signal is emitted when the user moves section \a section from
+ index position \a fromIndex, to index position \a toIndex.
+*/
+
+/*!
+ \fn void TQHeader::moved( int fromIndex, int toIndex )
+ \obsolete
+
+ Use indexChange() instead.
+
+ This signal is emitted when the user has moved the section which
+ is displayed at the index \a fromIndex to the index \a toIndex.
+*/
+
+/*!
+ \fn void TQHeader::sectionClicked( int index )
+ \obsolete
+
+ Use clicked() instead.
+
+ This signal is emitted when a part of the header is clicked. \a
+ index is the index at which the section is displayed.
+
+ In a list view this signal would typically be connected to a slot
+ that sorts the specified column (or row).
+*/
+
+/*! \fn int TQHeader::cellSize( int ) const
+ \obsolete
+
+ Use sectionSize() instead.
+
+ Returns the size in pixels of the section that is displayed at
+ the index \a i.
+*/
+
+/*!
+ \fn void TQHeader::sectionHandleDoubleClicked( int section )
+
+ This signal is emitted when the user doubleclicks on the edge
+ (handle) of section \a section.
+*/
+
+/*!
+ \obsolete
+
+ Use sectionPos() instead.
+
+ Returns the position in pixels of the section that is displayed at the
+ index \a i. The position is measured from the start of the header.
+*/
+
+int TQHeader::cellPos( int i ) const
+{
+ if ( i == count() && i > 0 )
+ return d->positions[i-1] + d->sizes[d->i2s[i-1]]; // compatibility
+ return sectionPos( mapToSection(i) );
+}
+
+
+/*!
+ \property TQHeader::count
+ \brief the number of sections in the header
+*/
+
+int TQHeader::count() const
+{
+ return d->count;
+}
+
+
+/*!
+ \property TQHeader::tracking
+ \brief whether the sizeChange() signal is emitted continuously
+
+ If tracking is on, the sizeChange() signal is emitted continuously
+ while the mouse is moved (i.e. when the header is resized),
+ otherwise it is only emitted when the mouse button is released at
+ the end of resizing.
+
+ Tracking defaults to FALSE.
+*/
+
+
+/*
+ Initializes with \a n columns.
+*/
+void TQHeader::init( int n )
+{
+ state = Idle;
+ cachedPos = 0; // unused
+ d = new TQHeaderData( n );
+ d->height = 0;
+ d->heightDirty = TRUE;
+ offs = 0;
+ if( reverse() )
+ offs = d->lastPos - width();
+ oldHandleIdx = oldHIdxSize = handleIdx = 0;
+
+ setMouseTracking( TRUE );
+ trackingIsOn = FALSE;
+ setBackgroundMode( PaletteButton );
+ setSizePolicy( TQSizePolicy( TQSizePolicy::Preferred, TQSizePolicy::Fixed ) );
+}
+
+/*!
+ \property TQHeader::orientation
+ \brief the header's orientation
+
+ The orientation is either \c Vertical or \c Horizontal (the
+ default).
+
+ Call setOrientation() before adding labels if you don't provide a
+ size parameter otherwise the sizes will be incorrect.
+*/
+
+void TQHeader::setOrientation( Orientation orientation )
+{
+ if ( orient == orientation )
+ return;
+ orient = orientation;
+ if ( orient == Horizontal )
+ setSizePolicy( TQSizePolicy( TQSizePolicy::Preferred, TQSizePolicy::Fixed ) );
+ else
+ setSizePolicy( TQSizePolicy( TQSizePolicy::Fixed, TQSizePolicy::Preferred ) );
+ update();
+ updateGeometry();
+}
+
+
+/*
+ Paints a rectangle starting at \a p, with length \s.
+*/
+void TQHeader::paintRect( int p, int s )
+{
+ TQPainter paint( this );
+ paint.setPen( TQPen( black, 1, DotLine ) );
+ if ( reverse() )
+ paint.drawRect( p - s, 3, s, height() - 5 );
+ else if ( orient == Horizontal )
+ paint.drawRect( p, 3, s, height() - 5 );
+ else
+ paint.drawRect( 3, p, height() - 5, s );
+}
+
+/*
+ Marks the division line at \a idx.
+*/
+void TQHeader::markLine( int idx )
+{
+ TQPainter paint( this );
+ paint.setPen( TQPen( black, 1, DotLine ) );
+ int MARKSIZE = style().pixelMetric( TQStyle::PM_HeaderMarkSize );
+ int p = pPos( idx );
+ int x = p - MARKSIZE/2;
+ int y = 2;
+ int x2 = p + MARKSIZE/2;
+ int y2 = height() - 3;
+ if ( orient == Vertical ) {
+ int t = x; x = y; y = t;
+ t = x2; x2 = y2; y2 = t;
+ }
+
+ paint.drawLine( x, y, x2, y );
+ paint.drawLine( x, y+1, x2, y+1 );
+
+ paint.drawLine( x, y2, x2, y2 );
+ paint.drawLine( x, y2-1, x2, y2-1 );
+
+ paint.drawLine( x, y, x, y2 );
+ paint.drawLine( x+1, y, x+1, y2 );
+
+ paint.drawLine( x2, y, x2, y2 );
+ paint.drawLine( x2-1, y, x2-1, y2 );
+}
+
+/*
+ Removes the mark at the division line at \a idx.
+*/
+void TQHeader::unMarkLine( int idx )
+{
+ if ( idx < 0 )
+ return;
+ int MARKSIZE = style().pixelMetric( TQStyle::PM_HeaderMarkSize );
+ int p = pPos( idx );
+ int x = p - MARKSIZE/2;
+ int y = 2;
+ int x2 = p + MARKSIZE/2;
+ int y2 = height() - 3;
+ if ( orient == Vertical ) {
+ int t = x; x = y; y = t;
+ t = x2; x2 = y2; y2 = t;
+ }
+ repaint( x, y, x2-x+1, y2-y+1 );
+}
+
+/*! \fn int TQHeader::cellAt( int ) const
+ \obsolete
+
+ Use sectionAt() instead.
+
+ Returns the index at which the section is displayed, which contains
+ \a pos in widget coordinates, or -1 if \a pos is outside the header
+ sections.
+*/
+
+/*
+ Tries to find a line that is not a neighbor of \c handleIdx.
+*/
+int TQHeader::findLine( int c )
+{
+ int i = 0;
+ if ( c > d->lastPos || (reverse() && c < 0 )) {
+ return d->count;
+ } else {
+ int section = sectionAt( c );
+ if ( section < 0 )
+ return handleIdx;
+ i = d->s2i[section];
+ }
+ int MARKSIZE = style().pixelMetric( TQStyle::PM_HeaderMarkSize );
+ if ( i == handleIdx )
+ return i;
+ if ( i == handleIdx - 1 && pPos( handleIdx ) - c > MARKSIZE/2 )
+ return i;
+ if ( i == handleIdx + 1 && c - pPos( i ) > MARKSIZE/2 )
+ return i + 1;
+ if ( c - pPos( i ) > pSize( i ) / 2 )
+ return i + 1;
+ else
+ return i;
+}
+
+/*!
+ Returns the handle at position \a p, or -1 if there is no handle at \a p.
+*/
+int TQHeader::handleAt(int p)
+{
+ int section = d->sectionAt( p );
+ if ( section >= 0 ) {
+ int GripMargin = (bool)d->resize[ section ] ?
+ style().pixelMetric( TQStyle::PM_HeaderGripMargin ) : 0;
+ int index = d->s2i[section];
+ if ( (index > 0 && p < d->positions[index] + GripMargin) ||
+ (p > d->positions[index] + d->sizes[section] - GripMargin) ) {
+ if ( index > 0 && p < d->positions[index] + GripMargin )
+ section = d->i2s[--index];
+ // dont show icon if streaching is enabled it is at the end of the last section
+ if ( d->resize.testBit(section) && (d->fullSize == -2 || index != count() - 1)) {
+ return section;
+ }
+ }
+ }
+
+ return -1;
+}
+
+/*!
+ \obsolete
+
+ Use moveSection() instead.
+
+ Moves the section that is currently displayed at index \a fromIdx
+ to index \a toIdx.
+*/
+
+void TQHeader::moveCell( int fromIdx, int toIdx )
+{
+ moveSection( mapToSection(fromIdx), toIdx );
+}
+
+
+
+/*!
+ Move and signal and repaint.
+ */
+
+void TQHeader::handleColumnMove( int fromIdx, int toIdx )
+{
+ int s = d->i2s[fromIdx];
+ if ( fromIdx < toIdx )
+ toIdx++; //Convert to
+ TQRect r = sRect( fromIdx );
+ r |= sRect( toIdx );
+ moveSection( s, toIdx );
+ update( r );
+ emit moved( fromIdx, toIdx );
+ emit indexChange( s, fromIdx, toIdx );
+}
+
+/*!
+ \reimp
+*/
+void TQHeader::keyPressEvent( TQKeyEvent *e )
+{
+ int i = d->focusIdx;
+ if ( e->key() == Key_Space ) {
+ //don't do it if we're doing something with the mouse
+ if ( state == Idle && d->clicks[ d->i2s[d->focusIdx] ] ) {
+ handleIdx = i;
+ state = Pressed;
+ repaint( sRect( handleIdx ) );
+ emit pressed( d->i2s[i] );
+ }
+ } else if ( orientation() == Horizontal &&
+ (e->key() == Key_Right || e->key() == Key_Left)
+ || orientation() == Vertical &&
+ (e->key() == Key_Up || e->key() == Key_Down) ) {
+ int dir = e->key() == Key_Right || e->key() == Key_Down ? 1 : -1;
+ int s = d->i2s[i];
+ if ( e->state() & ControlButton && d->resize[s] ) {
+ //resize
+ int step = e->state() & ShiftButton ? dir : 10*dir;
+ int c = d->positions[i] + d->sizes[s] + step;
+ handleColumnResize( i, c, TRUE );
+ } else if ( e->state() & (AltButton|MetaButton) && d->move ) {
+ //move section
+ int i2 = ( i + count() + dir ) % count();
+ d->focusIdx = i2;
+ handleColumnMove( i, i2 );
+ } else {
+ //focus on different section
+ TQRect r = sRect( d->focusIdx );
+ d->focusIdx = (d->focusIdx + count() + dir) % count();
+ r |= sRect( d->focusIdx );
+ update( r );
+ }
+ } else {
+ e->ignore();
+ }
+}
+
+/*!
+ \reimp
+*/
+void TQHeader::keyReleaseEvent( TQKeyEvent *e )
+{
+ switch ( e->key() ) {
+ case Key_Space:
+ //double check that this wasn't started with the mouse
+ if ( state == Pressed && handleIdx == d->focusIdx ) {
+ repaint(sRect( handleIdx ), FALSE);
+ int section = d->i2s[d->focusIdx];
+ emit released( section );
+ emit sectionClicked( handleIdx );
+ emit clicked( section );
+ state = Idle;
+ handleIdx = -1;
+ }
+ break;
+ default:
+ e->ignore();
+ }
+}
+
+
+/*!
+ \reimp
+*/
+void TQHeader::mousePressEvent( TQMouseEvent *e )
+{
+ if ( e->button() != LeftButton || state != Idle )
+ return;
+ oldHIdxSize = handleIdx;
+ handleIdx = 0;
+ int c = orient == Horizontal ? e->pos().x() : e->pos().y();
+ c += offset();
+ if ( reverse() )
+ c = d->lastPos - c;
+
+ int section = d->sectionAt( c );
+ if ( section < 0 )
+ return;
+ int GripMargin = (bool)d->resize[ section ] ?
+ style().pixelMetric( TQStyle::PM_HeaderGripMargin ) : 0;
+ int index = d->s2i[section];
+
+ if ( (index > 0 && c < d->positions[index] + GripMargin) ||
+ (c > d->positions[index] + d->sizes[section] - GripMargin) ) {
+ if ( c < d->positions[index] + GripMargin )
+ handleIdx = index-1;
+ else
+ handleIdx = index;
+ if ( d->lastPos <= ( orient == Horizontal ? width() :
+ height() ) && d->fullSize != -2 && handleIdx == count() - 1 ) {
+ handleIdx = -1;
+ return;
+ }
+ oldHIdxSize = d->sizes[ d->i2s[handleIdx] ];
+ state = d->resize[ d->i2s[handleIdx] ] ? Sliding : Blocked;
+ } else if ( index >= 0 ) {
+ oldHandleIdx = handleIdx = index;
+ moveToIdx = -1;
+ state = d->clicks[ d->i2s[handleIdx] ] ? Pressed : Blocked;
+ clickPos = c;
+ repaint( sRect( handleIdx ) );
+ if(oldHandleIdx != handleIdx)
+ repaint( sRect( oldHandleIdx ) );
+ emit pressed( section );
+ }
+
+ d->pressDelta = c - ( d->positions[handleIdx] + d->sizes[ d->i2s[handleIdx] ] );
+}
+
+/*!
+ \reimp
+*/
+void TQHeader::mouseReleaseEvent( TQMouseEvent *e )
+{
+ if ( e->button() != LeftButton )
+ return;
+ int oldOldHandleIdx = oldHandleIdx;
+ State oldState = state;
+ state = Idle;
+ switch ( oldState ) {
+ case Pressed: {
+ int section = d->i2s[handleIdx];
+ emit released( section );
+ if ( sRect( handleIdx ).contains( e->pos() ) ) {
+ oldHandleIdx = handleIdx;
+ emit sectionClicked( handleIdx );
+ emit clicked( section );
+ } else {
+ handleIdx = oldHandleIdx;
+ }
+ repaint(sRect( handleIdx ), FALSE);
+ if ( oldOldHandleIdx != handleIdx )
+ repaint(sRect(oldOldHandleIdx ), FALSE );
+ } break;
+ case Sliding: {
+ int c = orient == Horizontal ? e->pos().x() : e->pos().y();
+ c += offset();
+ if ( reverse() )
+ c = d->lastPos - c;
+ handleColumnResize( handleIdx, c - d->pressDelta, TRUE );
+ } break;
+ case Moving: {
+#ifndef QT_NO_CURSOR
+ unsetCursor();
+#endif
+ int section = d->i2s[handleIdx];
+ if ( handleIdx != moveToIdx && moveToIdx != -1 ) {
+ moveSection( section, moveToIdx );
+ handleIdx = oldHandleIdx;
+ emit moved( handleIdx, moveToIdx );
+ emit indexChange( section, handleIdx, moveToIdx );
+ emit released( section );
+ repaint(); // a bit overkill, but removes the handle as well
+ } else {
+ if ( sRect( handleIdx).contains( e->pos() ) ) {
+ oldHandleIdx = handleIdx;
+ emit released( section );
+ emit sectionClicked( handleIdx );
+ emit clicked( section );
+ } else {
+ handleIdx = oldHandleIdx;
+ }
+ repaint(sRect( handleIdx ), FALSE );
+ if(oldOldHandleIdx != handleIdx)
+ repaint(sRect(oldOldHandleIdx ), FALSE );
+ }
+ break;
+ }
+ case Blocked:
+ //nothing
+ break;
+ default:
+ // empty, probably. Idle, at any rate.
+ break;
+ }
+}
+
+/*!
+ \reimp
+*/
+void TQHeader::mouseMoveEvent( TQMouseEvent *e )
+{
+ int c = orient == Horizontal ? e->pos().x() : e->pos().y();
+ c += offset();
+
+ int pos = c;
+ if( reverse() )
+ c = d->lastPos - c;
+
+ switch( state ) {
+ case Idle:
+#ifndef QT_NO_CURSOR
+ if ( handleAt(c) < 0 )
+ unsetCursor();
+ else if ( orient == Horizontal )
+ setCursor( splitHCursor );
+ else
+ setCursor( splitVCursor );
+#endif
+ break;
+ case Blocked:
+ break;
+ case Pressed:
+ if ( TQABS( c - clickPos ) > 4 && d->move ) {
+ state = Moving;
+ moveToIdx = -1;
+#ifndef QT_NO_CURSOR
+ if ( orient == Horizontal )
+ setCursor( sizeHorCursor );
+ else
+ setCursor( sizeVerCursor );
+#endif
+ }
+ break;
+ case Sliding:
+ handleColumnResize( handleIdx, c, FALSE, FALSE );
+ break;
+ case Moving: {
+ int newPos = findLine( pos );
+ if ( newPos != moveToIdx ) {
+ if ( moveToIdx == handleIdx || moveToIdx == handleIdx + 1 )
+ repaint( sRect(handleIdx) );
+ else
+ unMarkLine( moveToIdx );
+ moveToIdx = newPos;
+ if ( moveToIdx == handleIdx || moveToIdx == handleIdx + 1 )
+ paintRect( pPos( handleIdx ), pSize( handleIdx ) );
+ else
+ markLine( moveToIdx );
+ }
+ break;
+ }
+ default:
+ qWarning( "TQHeader::mouseMoveEvent: (%s) unknown state", name() );
+ break;
+ }
+}
+
+/*! \reimp */
+
+void TQHeader::mouseDoubleClickEvent( TQMouseEvent *e )
+{
+ int p = orient == Horizontal ? e->pos().x() : e->pos().y();
+ p += offset();
+ if( reverse() )
+ p = d->lastPos - p;
+
+ int header = handleAt(p);
+ if (header >= 0)
+ emit sectionHandleDoubleClicked( header );
+}
+
+/*
+ Handles resizing of sections. This means it redraws the relevant parts
+ of the header.
+*/
+
+void TQHeader::handleColumnResize( int index, int c, bool final, bool recalcAll )
+{
+ int section = d->i2s[index];
+ int GripMargin = (bool)d->resize[ section ] ?
+ style().pixelMetric( TQStyle::PM_HeaderGripMargin ) : 0;
+ int lim = d->positions[index] + 2*GripMargin;
+ if ( c == lim )
+ return;
+ if ( c < lim )
+ c = lim;
+ int oldSize = d->sizes[section];
+ int newSize = c - d->positions[index];
+ d->sizes[section] = newSize;
+
+ calculatePositions( !recalcAll, !recalcAll ? section : 0 );
+
+ int pos = d->positions[index]-offset();
+ if( reverse() ) // repaint the whole thing. Could be optimized (lars)
+ repaint( 0, 0, width(), height() );
+ else if ( orient == Horizontal )
+ repaint( pos, 0, width() - pos, height() );
+ else
+ repaint( 0, pos, width(), height() - pos );
+
+ int os = 0, ns = 0;
+ if ( tracking() && oldSize != newSize ) {
+ os = oldSize;
+ ns = newSize;
+ emit sizeChange( section, oldSize, newSize );
+ } else if ( !tracking() && final && oldHIdxSize != newSize ) {
+ os = oldHIdxSize;
+ ns = newSize;
+ emit sizeChange( section, oldHIdxSize, newSize );
+ }
+
+ if ( os != ns ) {
+ if ( d->fullSize == -1 ) {
+ d->fullSize = count() - 1;
+ adjustHeaderSize();
+ d->fullSize = -1;
+ } else if ( d->fullSize >= 0 ) {
+ int old = d->fullSize;
+ d->fullSize = count() - 1;
+ adjustHeaderSize();
+ d->fullSize = old;
+ }
+ }
+}
+
+/*!
+ Returns the rectangle covered by the section at index \a index.
+*/
+
+TQRect TQHeader::sRect( int index )
+{
+
+ int section = mapToSection( index );
+ if ( count() > 0 && index >= count() ) {
+ int s = d->positions[count() - 1] - offset() +
+ d->sizes[mapToSection(count() - 1)];
+ if ( orient == Horizontal )
+ return TQRect( s, 0, width() - s + 10, height() );
+ else
+ return TQRect( 0, s, width(), height() - s + 10 );
+ }
+ if ( section < 0 )
+ return rect(); // ### eeeeevil
+
+ if ( reverse() )
+ return TQRect( d->lastPos - d->positions[index] - d->sizes[section] -offset(),
+ 0, d->sizes[section], height() );
+ else if ( orient == Horizontal )
+ return TQRect( d->positions[index]-offset(), 0, d->sizes[section], height() );
+ else
+ return TQRect( 0, d->positions[index]-offset(), width(), d->sizes[section] );
+}
+
+/*!
+ Returns the rectangle covered by section \a section.
+*/
+
+TQRect TQHeader::sectionRect( int section ) const
+{
+ int index = mapToIndex( section );
+ if ( section < 0 )
+ return rect(); // ### eeeeevil
+
+ if ( reverse() )
+ return TQRect( d->lastPos - d->positions[index] - d->sizes[section] -offset(),
+ 0, d->sizes[section], height() );
+ else if ( orient == Horizontal )
+ return TQRect( d->positions[index]-offset(), 0, d->sizes[section], height() );
+ else
+ return TQRect( 0, d->positions[index]-offset(), width(), d->sizes[section] );
+}
+
+/*!
+ \overload
+
+ Sets the icon for section \a section to \a iconset and the text to
+ \a s. The section's width is set to \a size if \a size \>= 0;
+ otherwise it is left unchanged.
+
+ If the section does not exist, nothing happens.
+*/
+
+void TQHeader::setLabel( int section, const TQIconSet& iconset,
+ const TQString &s, int size )
+{
+ if ( section < 0 || section >= count() )
+ return;
+ d->iconsets.insert( section, new TQIconSet( iconset ) );
+ setLabel( section, s, size );
+}
+
+/*!
+ Sets the text of section \a section to \a s. The section's width
+ is set to \a size if \a size \>= 0; otherwise it is left
+ unchanged. Any icon set that has been set for this section remains
+ unchanged.
+
+ If the section does not exist, nothing happens.
+*/
+void TQHeader::setLabel( int section, const TQString &s, int size )
+{
+ if ( section < 0 || section >= count() )
+ return;
+ if ( s.isNull() )
+ d->labels.remove( section );
+ else
+ d->labels.insert( section, new TQString( s ) );
+
+ setSectionSizeAndHeight( section, size );
+
+ if ( isUpdatesEnabled() ) {
+ updateGeometry();
+ calculatePositions();
+ update();
+ }
+}
+
+
+bool qt_qheader_label_return_null_strings = FALSE;
+/*!
+ Returns the text for section \a section. If the section does not
+ exist, a TQString::null is returned.
+*/
+TQString TQHeader::label( int section ) const
+{
+ if ( section < 0 || section >= count() )
+ return TQString::null;
+ if ( d->labels[ section ] )
+ return *( d->labels[ section ] );
+ else if ( qt_qheader_label_return_null_strings )
+ return TQString::null;
+ else
+ return TQString::number( section + 1 );
+}
+
+/*!
+ Returns the icon set for section \a section. If the section does
+ not exist, 0 is returned.
+*/
+
+TQIconSet *TQHeader::iconSet( int section ) const
+{
+ if ( section < 0 || section >= count() )
+ return 0;
+ return d->iconsets[ section ];
+}
+
+
+/*!
+ \overload
+
+ Adds a new section with iconset \a iconset and label text \a s.
+ Returns the index position where the section was added (at the
+ right for horizontal headers, at the bottom for vertical headers).
+ The section's width is set to \a size, unless size is negative in
+ which case the size is calculated taking account of the size of
+ the text.
+*/
+int TQHeader::addLabel( const TQIconSet& iconset, const TQString &s, int size )
+{
+ int n = count() + 1;
+ d->iconsets.resize( n + 1 );
+ d->iconsets.insert( n - 1, new TQIconSet( iconset ) );
+ return addLabel( s, size );
+}
+
+/*!
+ Removes section \a section. If the section does not exist, nothing
+ happens.
+*/
+void TQHeader::removeLabel( int section )
+{
+ if ( section < 0 || section > count() - 1 )
+ return;
+
+ int index = d->s2i[section];
+ int n = --d->count;
+ int i;
+ for ( i = section; i < n; ++i ) {
+ d->sizes[i] = d->sizes[i+1];
+ d->labels.insert( i, d->labels.take( i + 1 ) );
+ d->iconsets.insert( i, d->iconsets.take( i + 1 ) );
+ }
+
+ d->sizes.resize( n );
+ d->positions.resize( n );
+ d->labels.resize( n );
+ d->iconsets.resize( n );
+
+ for ( i = section; i < n; ++i )
+ d->s2i[i] = d->s2i[i+1];
+ d->s2i.resize( n );
+
+ if ( isUpdatesEnabled() ) {
+ for ( i = 0; i < n; ++i )
+ if ( d->s2i[i] > index )
+ --d->s2i[i];
+ }
+
+ for ( i = index; i < n; ++i )
+ d->i2s[i] = d->i2s[i+1];
+ d->i2s.resize( n );
+
+ if ( isUpdatesEnabled() ) {
+ for ( i = 0; i < n; ++i )
+ if ( d->i2s[i] > section )
+ --d->i2s[i];
+ }
+
+ if ( isUpdatesEnabled() ) {
+ updateGeometry();
+ calculatePositions();
+ update();
+ }
+}
+
+TQSize TQHeader::sectionSizeHint( int section, const TQFontMetrics& fm ) const
+{
+ int iw = 0;
+ int ih = 0;
+ if ( d->iconsets[section] != 0 ) {
+ TQSize isize = d->iconsets[section]->pixmap( TQIconSet::Small,
+ TQIconSet::Normal ).size();
+ iw = isize.width() + 2;
+ ih = isize.height();
+ }
+
+ TQRect bound;
+ TQString *label = d->labels[section];
+ if ( label ) {
+ int lines = label->contains( '\n' ) + 1;
+ int w = 0;
+ if (lines > 1) {
+ bound.setHeight(fm.height() + fm.lineSpacing() * (lines - 1));
+ TQStringList list = TQStringList::split('\n', *label);
+ for (int i=0; i <(int)list.count(); ++i) {
+ int tmpw = fm.width(*(list.at(i)));
+ w = TQMAX(w, tmpw);
+ }
+ } else {
+ bound.setHeight(fm.height());
+ w = fm.width(*label);
+ }
+ bound.setWidth( w );
+ }
+ int arrowWidth = 0;
+ if ( d->sortSection == section )
+ arrowWidth = ( ( orient == TQt::Horizontal ? height() : width() ) / 2 ) + 8;
+ int height = TQMAX( bound.height() + 2, ih ) + 4;
+ int width = bound.width() + style().pixelMetric( TQStyle::PM_HeaderMargin ) * 4
+ + iw + arrowWidth;
+ return TQSize( width, height );
+}
+
+/*
+ Sets d->sizes[\a section] to a bounding rect based on its size
+ hint and font metrics, but constrained by \a size. It also updates
+ d->height.
+*/
+void TQHeader::setSectionSizeAndHeight( int section, int size )
+{
+ TQSize sz = sectionSizeHint( section, fontMetrics() );
+
+ if ( size < 0 ) {
+ if ( d->sizes[section] < 0 )
+ d->sizes[section] = ( orient == Horizontal ) ? sz.width()
+ : sz.height();
+ } else {
+ d->sizes[section] = size;
+ }
+
+ int newHeight = ( orient == Horizontal ) ? sz.height() : sz.width();
+ if ( newHeight > d->height ) {
+ d->height = newHeight;
+ } else if ( newHeight < d->height ) {
+ /*
+ We could be smarter, but we aren't. This makes a difference
+ only for users with many columns and '\n's in their headers
+ at the same time.
+ */
+ d->heightDirty = TRUE;
+ }
+}
+
+/*!
+ Adds a new section with label text \a s. Returns the index
+ position where the section was added (at the right for horizontal
+ headers, at the bottom for vertical headers). The section's width
+ is set to \a size. If \a size \< 0, an appropriate size for the
+ text \a s is chosen.
+*/
+int TQHeader::addLabel( const TQString &s, int size )
+{
+ int n = ++d->count;
+ if ( (int)d->iconsets.size() < n )
+ d->iconsets.resize( n );
+ if ( (int)d->sizes.size() < n ) {
+ d->labels.resize( n );
+ d->sizes.resize( n );
+ d->positions.resize( n );
+ d->i2s.resize( n );
+ d->s2i.resize( n );
+ d->clicks.resize( n );
+ d->resize.resize( n );
+ }
+ int section = d->count - 1;
+ if ( !d->is_a_table_header || !s.isNull() )
+ d->labels.insert( section, new TQString( s ) );
+
+ if ( size >= 0 && s.isNull() && d->is_a_table_header ) {
+ d->sizes[section] = size;
+ } else {
+ d->sizes[section] = -1;
+ setSectionSizeAndHeight( section, size );
+ }
+
+ int index = section;
+ d->positions[index] = d->lastPos;
+
+ d->s2i[section] = index;
+ d->i2s[index] = section;
+ d->clicks.setBit( section, d->clicks_default );
+ d->resize.setBit( section, d->resize_default );
+
+ if ( isUpdatesEnabled() ) {
+ updateGeometry();
+ calculatePositions();
+ update();
+ }
+ return index;
+}
+
+void TQHeader::resizeArrays( int size )
+{
+ d->iconsets.resize( size );
+ d->labels.resize( size );
+ d->sizes.resize( size );
+ d->positions.resize( size );
+ d->i2s.resize( size );
+ d->s2i.resize( size );
+ d->clicks.resize( size );
+ d->resize.resize( size );
+}
+
+void TQHeader::setIsATableHeader( bool b )
+{
+ d->is_a_table_header = b;
+}
+
+/*! \reimp */
+TQSize TQHeader::sizeHint() const
+{
+ int width;
+ int height;
+
+ constPolish();
+ TQFontMetrics fm = fontMetrics();
+
+ if ( d->heightDirty ) {
+ d->height = fm.lineSpacing() + 6;
+ for ( int i = 0; i < count(); i++ ) {
+ int h = orient == Horizontal ?
+ sectionSizeHint( i, fm ).height() : sectionSizeHint( i, fm ).width();
+ d->height = TQMAX( d->height, h );
+ }
+ d->heightDirty = FALSE;
+ }
+
+ if ( orient == Horizontal ) {
+ height = fm.lineSpacing() + 6;
+ width = 0;
+ height = TQMAX( height, d->height );
+ for ( int i = 0; i < count(); i++ )
+ width += d->sizes[i];
+ } else {
+ width = fm.width( ' ' );
+ height = 0;
+ width = TQMAX( width, d->height );
+ for ( int i = 0; i < count(); i++ )
+ height += d->sizes[i];
+ }
+ return (style().sizeFromContents(TQStyle::CT_Header, this,
+ TQSize(width, height)).expandedTo(TQApplication::globalStrut()));
+}
+
+/*!
+ \property TQHeader::offset
+ \brief the header's left-most (or top-most) visible pixel
+
+ Setting this property will scroll the header so that \e offset
+ becomes the left-most (or top-most for vertical headers) visible
+ pixel.
+*/
+int TQHeader::offset() const
+{
+ if ( reverse() )
+ return d->lastPos - width() - offs;
+ return offs;
+}
+
+void TQHeader::setOffset( int x )
+{
+ int oldOff = offset();
+ offs = x;
+ if( d->lastPos < ( orient == Horizontal ? width() : height() ) )
+ offs = 0;
+ else if ( reverse() )
+ offs = d->lastPos - width() - x;
+ if ( orient == Horizontal )
+ scroll( oldOff-offset(), 0 );
+ else
+ scroll( 0, oldOff-offset());
+}
+
+
+
+/*
+ Returns the position of actual division line \a i in widget
+ coordinates. May return a position outside the widget.
+
+ Note that the last division line is numbered count(). (There is one
+ more line than the number of sections).
+*/
+int TQHeader::pPos( int i ) const
+{
+ int pos;
+ if ( i == count() )
+ pos = d->lastPos;
+ else
+ pos = d->positions[i];
+ if ( reverse() )
+ pos = d->lastPos - pos;
+ return pos - offset();
+}
+
+
+/*
+ Returns the size of the section at index position \a i.
+*/
+int TQHeader::pSize( int i ) const
+{
+ return d->sizes[ d->i2s[i] ];
+}
+
+/*!
+ \obsolete
+
+ Use mapToSection() instead.
+
+ Translates from actual index \a a (index at which the section is displayed) to
+ logical index of the section. Returns -1 if \a a is outside the legal range.
+
+ \sa mapToActual()
+*/
+
+int TQHeader::mapToLogical( int a ) const
+{
+ return mapToSection( a );
+}
+
+
+/*!
+ \obsolete
+
+ Use mapToIndex() instead.
+
+ Translates from logical index \a l to actual index (index at which the section \a l is displayed) .
+ Returns -1 if \a l is outside the legal range.
+
+ \sa mapToLogical()
+*/
+
+int TQHeader::mapToActual( int l ) const
+{
+ return mapToIndex( l );
+}
+
+
+/*!
+ \obsolete
+
+ Use resizeSection() instead.
+
+ Sets the size of the section \a section to \a s pixels.
+
+ \warning does not repaint or send out signals
+*/
+
+void TQHeader::setCellSize( int section, int s )
+{
+ if ( section < 0 || section >= count() )
+ return;
+ d->sizes[ section ] = s;
+ if ( isUpdatesEnabled() )
+ calculatePositions();
+}
+
+
+/*!
+ If \a enable is TRUE the user may resize section \a section;
+ otherwise the section may not be manually resized.
+
+ If \a section is negative (the default) then the \a enable value
+ is set for all existing sections and will be applied to any new
+ sections that are added.
+ Example:
+ \code
+ // Allow resizing of all current and future sections
+ header->setResizeEnabled(TRUE);
+ // Disable resizing of section 3, (the fourth section added)
+ header->setResizeEnabled(FALSE, 3);
+ \endcode
+
+ If the user resizes a section, a sizeChange() signal is emitted.
+
+ \sa setMovingEnabled() setClickEnabled() setTracking()
+*/
+
+void TQHeader::setResizeEnabled( bool enable, int section )
+{
+ if ( section < 0 ) {
+ d->resize.fill( enable );
+ // and future ones...
+ d->resize_default = enable;
+ } else if ( section < count() ) {
+ d->resize[ section ] = enable;
+ }
+}
+
+
+/*!
+ \property TQHeader::moving
+ \brief whether the header sections can be moved
+
+ If this property is TRUE (the default) the user can move sections.
+ If the user moves a section the indexChange() signal is emitted.
+
+ \sa setClickEnabled(), setResizeEnabled()
+*/
+
+void TQHeader::setMovingEnabled( bool enable )
+{
+ d->move = enable;
+}
+
+
+/*!
+ If \a enable is TRUE, any clicks on section \a section will result
+ in clicked() signals being emitted; otherwise the section will
+ ignore clicks.
+
+ If \a section is -1 (the default) then the \a enable value is set
+ for all existing sections and will be applied to any new sections
+ that are added.
+
+ \sa setMovingEnabled(), setResizeEnabled()
+*/
+
+void TQHeader::setClickEnabled( bool enable, int section )
+{
+ if ( section < 0 ) {
+ d->clicks.fill( enable );
+ // and future ones...
+ d->clicks_default = enable;
+ } else if ( section < count() ) {
+ d->clicks[ section ] = enable;
+ }
+}
+
+
+/*!
+ Paints the section at position \a index, inside rectangle \a fr
+ (which uses widget coordinates) using painter \a p.
+
+ Calls paintSectionLabel().
+*/
+
+void TQHeader::paintSection( TQPainter *p, int index, const TQRect& fr )
+{
+ int section = mapToSection( index );
+
+ if ( section < 0 ) {
+ style().drawPrimitive( TQStyle::PE_HeaderSection, p, fr,
+ colorGroup(), TQStyle::Style_Raised |
+ (isEnabled() ? TQStyle::Style_Enabled : 0) |
+ ( orient == Horizontal ? TQStyle::Style_Horizontal : 0 ),
+ TQStyleOption( this ) );
+ return;
+ }
+
+ if ( sectionSize( section ) <= 0 )
+ return;
+
+ TQStyle::SFlags flags = (orient == Horizontal ? TQStyle::Style_Horizontal : TQStyle::Style_Default);
+ //pass in some hint about the sort indicator if it is used
+ if(d->sortSection != section)
+ flags |= TQStyle::Style_Off;
+ else if(!d->sortDirection)
+ flags |= TQStyle::Style_Up;
+ if(isEnabled())
+ flags |= TQStyle::Style_Enabled;
+ if(isClickEnabled(section)) {
+ if(section == d->sortSection)
+ flags |= TQStyle::Style_Sunken; //currently selected
+ if((state == Pressed || state == Moving) && index == handleIdx)
+ flags |= TQStyle::Style_Down; //currently pressed
+
+ }
+ if(!(flags & TQStyle::Style_Down))
+ flags |= TQStyle::Style_Raised;
+ p->setBrushOrigin( fr.topLeft() );
+ if ( d->clicks[section] ) {
+ style().drawPrimitive( TQStyle::PE_HeaderSection, p, fr,
+ colorGroup(), flags,
+ TQStyleOption( this ) );
+ } else {
+ p->save();
+ p->setClipRect( fr ); // hack to keep styles working
+ if ( orientation() == Horizontal ) {
+ style().drawPrimitive( TQStyle::PE_HeaderSection, p,
+ TQRect(fr.x() - 2, fr.y() - 2, fr.width() + 4, fr.height() + 4),
+ colorGroup(), flags,
+ TQStyleOption( this ) );
+
+ p->setPen( colorGroup().color( TQColorGroup::Mid ) );
+ p->drawLine( fr.x(), fr.y() + fr.height() - 1,
+ fr.x() + fr.width() - 1, fr.y() + fr.height() - 1 );
+ p->drawLine( fr.x() + fr.width() - 1, fr.y(),
+ fr.x() + fr.width() - 1, fr.y() + fr.height() - 1 );
+ p->setPen( colorGroup().color( TQColorGroup::Light ) );
+ if ( index > 0 )
+ p->drawLine( fr.x(), fr.y(), fr.x(), fr.y() + fr.height() - 1 );
+ if ( index == count() - 1 ) {
+ p->drawLine( fr.x() + fr.width() - 1, fr.y(),
+ fr.x() + fr.width() - 1, fr.y() + fr.height() - 1 );
+ p->setPen( colorGroup().color( TQColorGroup::Mid ) );
+ p->drawLine( fr.x() + fr.width() - 2, fr.y(),
+ fr.x() + fr.width() - 2, fr.y() + fr.height() - 1 );
+ }
+ } else {
+ style().drawPrimitive( TQStyle::PE_HeaderSection, p,
+ TQRect(fr.x() - 2, fr.y() - 2, fr.width() + 4, fr.height() + 4),
+ colorGroup(), flags,
+ TQStyleOption( this ) );
+
+ p->setPen( colorGroup().color( TQColorGroup::Mid ) );
+ p->drawLine( fr.x() + width() - 1, fr.y(),
+ fr.x() + fr.width() - 1, fr.y() + fr.height() - 1 );
+ p->drawLine( fr.x(), fr.y() + fr.height() - 1,
+ fr.x() + fr.width() - 1, fr.y() + fr.height() - 1 );
+ p->setPen( colorGroup().color( TQColorGroup::Light ) );
+ if ( index > 0 )
+ p->drawLine( fr.x(), fr.y(), fr.x() + fr.width() - 1, fr.y() );
+ if ( index == count() - 1 ) {
+ p->drawLine( fr.x(), fr.y() + fr.height() - 1,
+ fr.x() + fr.width() - 1, fr.y() + fr.height() - 1 );
+ p->setPen( colorGroup().color( TQColorGroup::Mid ) );
+ p->drawLine( fr.x(), fr.y() + fr.height() - 2,
+ fr.x() + fr.width() - 1, fr.y() + fr.height() - 2 );
+ }
+ }
+ p->restore();
+ }
+
+ paintSectionLabel( p, index, fr );
+}
+
+/*!
+ Paints the label of the section at position \a index, inside
+ rectangle \a fr (which uses widget coordinates) using painter \a
+ p.
+
+ Called by paintSection()
+*/
+void TQHeader::paintSectionLabel( TQPainter *p, int index, const TQRect& fr )
+{
+ int section = mapToSection( index );
+ if ( section < 0 )
+ return;
+
+ int dx = 0, dy = 0;
+ TQStyle::SFlags flags = TQStyle::Style_Default;
+ if ( index == handleIdx && ( state == Pressed || state == Moving ) ) {
+ dx = style().pixelMetric( TQStyle::PM_ButtonShiftHorizontal, this );
+ dy = style().pixelMetric( TQStyle::PM_ButtonShiftVertical, this );
+ flags |= TQStyle::Style_Sunken;
+ }
+ if ( isEnabled() )
+ flags |= TQStyle::Style_Enabled;
+
+
+ TQRect r( fr.x() + style().pixelMetric( TQStyle::PM_HeaderMargin ) + dx, fr.y() + 2 + dy,
+ fr.width() - 6, fr.height() - 4 );
+
+ style().drawControl( TQStyle::CE_HeaderLabel, p, this, r, colorGroup(), flags,
+ TQStyleOption( section ) );
+
+ int arrowWidth = ( orient == TQt::Horizontal ? height() : width() ) / 2;
+ int arrowHeight = fr.height() - 6;
+ TQSize ssh = sectionSizeHint( section, p->fontMetrics() );
+ int tw = ( orient == TQt::Horizontal ? ssh.width() : ssh.height() );
+ int ew = 0;
+
+ if ( style().styleHint( TQStyle::SH_Header_ArrowAlignment, this ) & AlignRight )
+ ew = fr.width() - tw - 8;
+ if ( d->sortSection == section && tw <= fr.width() ) {
+ if ( reverse() ) {
+ tw = fr.width() - tw;
+ ew = fr.width() - ew - tw;
+ }
+ TQStyle::SFlags flags = TQStyle::Style_Default;
+ if ( isEnabled() )
+ flags |= TQStyle::Style_Enabled;
+ if ( d->sortDirection )
+ flags |= TQStyle::Style_Down;
+ else
+ flags |= TQStyle::Style_Up;
+ TQRect ar(fr.x() + tw - arrowWidth - 6 + ew, 4, arrowWidth, arrowHeight);
+ if (label(section).isRightToLeft())
+ ar.moveBy( 2*(fr.right() - ar.right()) + ar.width() - fr.width(), 0 );
+ style().drawPrimitive( TQStyle::PE_HeaderArrow, p,
+ ar, colorGroup(), flags, TQStyleOption( this ) );
+ }
+}
+
+
+/*! \reimp */
+void TQHeader::paintEvent( TQPaintEvent *e )
+{
+ TQPainter p( this );
+ p.setPen( colorGroup().buttonText() );
+ int pos = orient == Horizontal ? e->rect().left() : e->rect().top();
+ int id = mapToIndex( sectionAt( pos + offset() ) );
+ if ( id < 0 ) {
+ if ( pos > 0 )
+ id = d->count;
+ else if ( reverse() )
+ id = d->count - 1;
+ else
+ id = 0;
+ }
+ if ( reverse() ) {
+ for ( int i = id; i >= 0; i-- ) {
+ TQRect r = sRect( i );
+ paintSection( &p, i, r );
+ if ( r.right() >= e->rect().right() )
+ return;
+ }
+ } else {
+ if ( count() > 0 ) {
+ for ( int i = id; i <= count(); i++ ) {
+ TQRect r = sRect( i );
+ /*
+ If the last section is clickable (and thus is
+ painted raised), draw the virtual section count()
+ as well. Otherwise it looks ugly.
+ */
+ if ( i < count() || d->clicks[ mapToSection( count() - 1 ) ] )
+ paintSection( &p, i, r );
+ if ( hasFocus() && d->focusIdx == i ) {
+ TQRect fr( r.x()+2, r.y()+2, r.width()-4, r.height()-4 );
+ style().drawPrimitive( TQStyle::PE_FocusRect, &p, fr,
+ colorGroup() );
+ }
+ if ( orient == Horizontal && r. right() >= e->rect().right() ||
+ orient == Vertical && r. bottom() >= e->rect().bottom() )
+ return;
+ }
+ }
+ }
+}
+
+/*! \overload
+ \obsolete
+ Use the other overload instead.
+*/
+
+void TQHeader::setSortIndicator( int section, bool ascending )
+{
+ d->sortSection = section;
+ if ( section != -1 )
+ oldHandleIdx = section;
+ d->sortDirection = ascending;
+ update();
+ updateGeometry();
+}
+
+/*!
+ \fn void TQHeader::setSortIndicator(int section, SortOrder order)
+
+ Sets a sort indicator onto the specified \a section. The indicator's
+ \a order is either Ascending or Descending.
+
+ Only one section can show a sort indicator at any one time. If you
+ don't want any section to show a sort indicator pass a \a section
+ number of -1.
+
+ \sa sortIndicatorSection(), sortIndicatorOrder()
+*/
+
+/*!
+ Returns the section showing the sort indicator or -1 if there is no sort indicator.
+
+ \sa setSortIndicator(), sortIndicatorOrder()
+*/
+
+int TQHeader::sortIndicatorSection() const
+{
+ return d->sortSection;
+}
+
+/*!
+ Returns the implied sort order of the TQHeaders sort indicator.
+
+ \sa setSortIndicator(), sortIndicatorSection()
+*/
+
+TQt::SortOrder TQHeader::sortIndicatorOrder() const
+{
+ return d->sortDirection ? Ascending : Descending;
+}
+
+/*!
+ Resizes section \a section to \a s pixels wide (or high).
+*/
+
+void TQHeader::resizeSection( int section, int s )
+{
+ setCellSize( section, s );
+ update();
+}
+
+/*!
+ Returns the width (or height) of the \a section in pixels.
+*/
+
+int TQHeader::sectionSize( int section ) const
+{
+ if ( section < 0 || section >= count() )
+ return 0;
+ return d->sizes[section];
+}
+
+/*!
+ Returns the position (in pixels) at which the \a section starts.
+
+ \sa offset()
+*/
+
+int TQHeader::sectionPos( int section ) const
+{
+ if ( d->positionsDirty )
+ ((TQHeader *)this)->calculatePositions();
+ if ( section < 0 || section >= count() )
+ return 0;
+ return d->positions[ d->s2i[section] ];
+}
+
+/*!
+ Returns the index of the section which contains the position \a
+ pos given in pixels from the left (or top).
+
+ \sa offset()
+*/
+
+int TQHeader::sectionAt( int pos ) const
+{
+ if ( reverse() )
+ pos = d->lastPos - pos;
+ return d->sectionAt( pos );
+}
+
+/*!
+ Returns the number of the section that corresponds to the specified \a index.
+
+ \warning If TQTable is used to move header sections as a result of user
+ interaction, the mapping exposed by this function will not reflect the
+ order of the headers in the table; i.e., TQTable does not call moveSection()
+ to move sections but handles move operations internally.
+
+ \sa mapToIndex()
+*/
+
+int TQHeader::mapToSection( int index ) const
+{
+ return ( index >= 0 && index < count() ) ? d->i2s[ index ] : -1;
+}
+
+/*!
+ Returns the index position corresponding to the specified \a section number.
+
+ \warning If TQTable is used to move header sections as a result of user
+ interaction, the mapping exposed by this function will not reflect the
+ order of the headers in the table; i.e., TQTable does not call moveSection()
+ to move sections but handles move operations internally.
+
+ \sa mapToSection()
+*/
+
+int TQHeader::mapToIndex( int section ) const
+{
+ return ( section >= 0 && section < count() ) ? d->s2i[ section ] : -1;
+}
+
+/*!
+ Moves section \a section to index position \a toIndex.
+*/
+
+void TQHeader::moveSection( int section, int toIndex )
+{
+ int fromIndex = mapToIndex( section );
+ if ( fromIndex == toIndex ||
+ fromIndex < 0 || fromIndex > count() ||
+ toIndex < 0 || toIndex > count() )
+ return;
+ int i;
+ int idx = d->i2s[fromIndex];
+ if ( fromIndex < toIndex ) {
+ for ( i = fromIndex; i < toIndex - 1; i++ ) {
+ int t;
+ d->i2s[i] = t = d->i2s[i+1];
+ d->s2i[t] = i;
+ }
+ d->i2s[toIndex-1] = idx;
+ d->s2i[idx] = toIndex-1;
+ } else {
+ for ( i = fromIndex; i > toIndex; i-- ) {
+ int t;
+ d->i2s[i] = t = d->i2s[i-1];
+ d->s2i[t] = i;
+ }
+ d->i2s[toIndex] = idx;
+ d->s2i[idx] = toIndex;
+ }
+ calculatePositions();
+}
+
+/*!
+ Returns TRUE if section \a section is clickable; otherwise returns
+ FALSE.
+
+ If \a section is out of range (negative or larger than count() -
+ 1): returns TRUE if all sections are clickable; otherwise returns
+ FALSE.
+
+ \sa setClickEnabled()
+*/
+
+bool TQHeader::isClickEnabled( int section ) const
+{
+ if ( section >= 0 && section < count() ) {
+ return (bool)d->clicks[ section ];
+ }
+
+ for ( int i = 0; i < count(); ++i ) {
+ if ( !d->clicks[ i ] )
+ return FALSE;
+ }
+ return TRUE;
+}
+
+/*!
+ Returns TRUE if section \a section is resizeable; otherwise
+ returns FALSE.
+
+ If \a section is -1 then this function applies to all sections,
+ i.e. returns TRUE if all sections are resizeable; otherwise
+ returns FALSE.
+
+ \sa setResizeEnabled()
+*/
+
+bool TQHeader::isResizeEnabled( int section ) const
+{
+ if ( section >= 0 && section < count() ) {
+ return (bool)d->resize[ section ];
+ }
+
+ for ( int i = 0; i < count();++i ) {
+ if ( !d->resize[ i ] )
+ return FALSE;
+ }
+ return TRUE;
+}
+
+bool TQHeader::isMovingEnabled() const
+{
+ return d->move;
+}
+
+/*! \reimp */
+
+void TQHeader::setUpdatesEnabled( bool enable )
+{
+ if ( enable )
+ calculatePositions();
+ TQWidget::setUpdatesEnabled( enable );
+}
+
+
+bool TQHeader::reverse () const
+{
+#if 0
+ return ( orient == TQt::Horizontal && TQApplication::reverseLayout() );
+#else
+ return FALSE;
+#endif
+}
+
+/*! \reimp */
+void TQHeader::resizeEvent( TQResizeEvent *e )
+{
+ if ( e )
+ TQWidget::resizeEvent( e );
+
+ if( d->lastPos < width() ) {
+ offs = 0;
+ }
+
+ if ( e ) {
+ adjustHeaderSize( orientation() == Horizontal ?
+ width() - e->oldSize().width() : height() - e->oldSize().height() );
+ if ( (orientation() == Horizontal && height() != e->oldSize().height())
+ || (orientation() == Vertical && width() != e->oldSize().width()) )
+ update();
+ } else
+ adjustHeaderSize();
+}
+
+/*!
+ \fn void TQHeader::adjustHeaderSize()
+
+ Adjusts the size of the sections to fit the size of the header as
+ completely as possible. Only sections for which isStretchEnabled()
+ is TRUE will be resized.
+*/
+
+void TQHeader::adjustHeaderSize( int diff )
+{
+ if ( !count() )
+ return;
+
+ // we skip the adjustHeaderSize when trying to resize the last column which is set to stretchable
+ if ( d->fullSize == (count() -1) &&
+ (d->lastPos - d->sizes[count() -1]) > ( orient == Horizontal ? width() : height() ) )
+ return;
+
+ if ( d->fullSize >= 0 ) {
+ int sec = mapToSection( d->fullSize );
+ int lsec = mapToSection( count() - 1 );
+ int ns = sectionSize( sec ) +
+ ( orientation() == Horizontal ?
+ width() : height() ) - ( sectionPos( lsec ) + sectionSize( lsec ) );
+ int os = sectionSize( sec );
+ if ( ns < 20 )
+ ns = 20;
+ setCellSize( sec, ns );
+ repaint( FALSE );
+ emit sizeChange( sec, os, ns );
+ } else if ( d->fullSize == -1 ) {
+ int df = diff / count();
+ int part = orientation() == Horizontal ? width() / count() : height() / count();
+ for ( int i = 0; i < count() - 1; ++i ) {
+ int sec = mapToIndex( i );
+ int os = sectionSize( sec );
+ int ns = diff != -1 ? os + df : part;
+ if ( ns < 20 )
+ ns = 20;
+ setCellSize( sec, ns );
+ emit sizeChange( sec, os, ns );
+ }
+ int sec = mapToIndex( count() - 1 );
+ int ns = ( orientation() == Horizontal ? width() : height() ) - sectionPos( sec );
+ int os = sectionSize( sec );
+ if ( ns < 20 )
+ ns = 20;
+ setCellSize( sec, ns );
+ repaint( FALSE );
+ emit sizeChange( sec, os, ns );
+ }
+}
+
+/*!
+ Returns the total width of all the header columns.
+*/
+int TQHeader::headerWidth() const
+{
+ if ( d->pos_dirty ) {
+ ( (TQHeader*)this )->calculatePositions();
+ d->pos_dirty = FALSE;
+ }
+ return d->lastPos;
+}
+
+void TQHeader::calculatePositions( bool onlyVisible, int start )
+{
+ d->positionsDirty = FALSE;
+ d->lastPos = count() > 0 ? d->positions[start] : 0;
+ for ( int i = start; i < count(); i++ ) {
+ d->positions[i] = d->lastPos;
+ d->lastPos += d->sizes[d->i2s[i]];
+ if ( onlyVisible && d->lastPos > offset() +
+ ( orientation() == Horizontal ? width() : height() ) )
+ break;
+ }
+ d->pos_dirty = onlyVisible;
+}
+
+
+/*!
+ \property TQHeader::stretching
+ \brief whether the header sections always take up the full width
+ (or height) of the header
+*/
+
+
+/*!
+ If \a b is TRUE, section \a section will be resized when the
+ header is resized, so that the sections take up the full width (or
+ height for vertical headers) of the header; otherwise section \a
+ section will be set to be unstretchable and will not resize when
+ the header is resized.
+
+ If \a section is -1, and if \a b is TRUE, then all sections will
+ be resized equally when the header is resized so that they take up
+ the full width (or height for vertical headers) of the header;
+ otherwise all the sections will be set to be unstretchable and
+ will not resize when the header is resized.
+
+ \sa adjustHeaderSize()
+*/
+
+void TQHeader::setStretchEnabled( bool b, int section )
+{
+ if ( b )
+ d->fullSize = section;
+ else
+ d->fullSize = -2;
+ adjustHeaderSize();
+}
+
+bool TQHeader::isStretchEnabled() const
+{
+ return d->fullSize == -1;
+}
+
+/*!
+ \overload
+
+ Returns TRUE if section \a section will resize to take up the full
+ width (or height) of the header; otherwise returns FALSE. If at
+ least one section has stretch enabled the sections will always
+ take up the full width of the header.
+
+ \sa setStretchEnabled()
+*/
+
+bool TQHeader::isStretchEnabled( int section ) const
+{
+ return d->fullSize == section;
+}
+
+/*!
+ \reimp
+*/
+void TQHeader::fontChange( const TQFont &oldFont )
+{
+ TQFontMetrics fm = fontMetrics();
+ d->height = ( orient == Horizontal ) ? fm.lineSpacing() + 6 : fm.width( ' ' );
+ TQWidget::fontChange( oldFont );
+}
+
+#endif // QT_NO_HEADER