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/* This file is part of the KDE project
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Copyright (C) 2005-2006 Jaroslaw Staniek <js@iidea.pl>
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This program is free software; you can redistribute it and,or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "kexitableviewheader.h"
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#include <tqapplication.h>
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#include <tqtooltip.h>
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#include <tqstyle.h>
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#include <kexiutils/utils.h>
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#include <kexiutils/styleproxy.h>
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//! @internal A style that allows to temporary change background color while
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//! drawing header section primitive. Used in KexiTableViewHeader.
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class KexiTableViewHeaderStyle : public KexiUtils::StyleProxy
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{
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public:
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KexiTableViewHeaderStyle(TQStyle *parentStyle, TQWidget *widget)
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: KexiUtils::StyleProxy(parentStyle)
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{
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setBackgroundColor( widget->palette().active().background() );
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}
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~KexiTableViewHeaderStyle() {}
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virtual void tqdrawPrimitive( TQ_PrimitiveElement pe,
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TQPainter *p, const TQRect &r, const TQColorGroup &cg, SFlags flags = Style_Default,
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const TQStyleOption& option = TQStyleOption::Default ) const
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{
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if (pe==TQStyle::PE_HeaderSection) {
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TQColorGroup newCg(cg);
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newCg.setColor(TQColorGroup::Button, m_backgroundColor);
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newCg.setColor(TQColorGroup::Background, m_backgroundColor); //set background color as well (e.g. for thinkeramik)
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m_style->tqdrawPrimitive( pe, p, r, newCg, flags, option );
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return;
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}
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m_style->tqdrawPrimitive( pe, p, r, cg, flags, option );
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}
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void setBackgroundColor( const TQColor& color ) { m_backgroundColor = color; }
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protected:
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TQColor m_backgroundColor;
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};
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KexiTableViewHeader::KexiTableViewHeader(TQWidget * parent, const char * name)
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: TQHeader(parent, name)
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, m_lastToolTipSection(-1)
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, m_selectionBackgroundColor(tqApp->palette().active().highlight())
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, m_selectedSection(-1)
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, m_styleChangeEnabled(true)
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{
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styleChange( style() );
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installEventFilter(this);
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connect(this, TQT_SIGNAL(sizeChange(int,int,int)),
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this, TQT_SLOT(slotSizeChange(int,int,int)));
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}
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KexiTableViewHeader::~KexiTableViewHeader()
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{
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}
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void KexiTableViewHeader::styleChange( TQStyle& oldStyle )
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{
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TQHeader::styleChange( oldStyle );
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if (!m_styleChangeEnabled)
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return;
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m_styleChangeEnabled = false;
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setStyle( new KexiTableViewHeaderStyle(&tqApp->style(), this) );
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m_styleChangeEnabled = true;
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}
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int KexiTableViewHeader::addLabel ( const TQString & s, int size )
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{
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m_toolTips += "";
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slotSizeChange(0,0,0);//refresh
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return TQHeader::addLabel(s, size);
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}
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int KexiTableViewHeader::addLabel ( const TQIconSet & iconset, const TQString & s, int size )
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{
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m_toolTips += "";
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slotSizeChange(0,0,0);//refresh
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return TQHeader::addLabel(iconset, s, size);
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}
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void KexiTableViewHeader::removeLabel( int section )
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{
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if (section < 0 || section >= count())
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return;
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TQStringList::Iterator it = m_toolTips.begin();
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it += section;
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m_toolTips.remove(it);
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slotSizeChange(0,0,0);//refresh
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TQHeader::removeLabel(section);
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}
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void KexiTableViewHeader::setToolTip( int section, const TQString & toolTip )
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{
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if (section < 0 || section >= (int)m_toolTips.count())
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return;
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m_toolTips[ section ] = toolTip;
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}
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bool KexiTableViewHeader::eventFilter(TQObject * watched, TQEvent * e)
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{
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if (e->type()==TQEvent::MouseMove) {
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const int section = sectionAt( TQT_TQMOUSEEVENT(e)->x() );
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if (section != m_lastToolTipSection && section >= 0 && section < (int)m_toolTips.count()) {
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TQToolTip::remove(this, m_toolTipRect);
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TQString tip = m_toolTips[ section ];
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if (tip.isEmpty()) { //try label
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TQFontMetrics fm(font());
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int minWidth = fm.width( label( section ) ) + style().pixelMetric( TQStyle::PM_HeaderMargin );
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TQIconSet *iset = iconSet( section );
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if (iset)
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minWidth += (2+iset->pixmap( TQIconSet::Small, TQIconSet::Normal ).width()); //taken from TQHeader::sectionSizeHint()
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if (minWidth > sectionSize( section ))
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tip = label( section );
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}
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if (tip.isEmpty()) {
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m_lastToolTipSection = -1;
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}
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else {
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TQToolTip::add(this, m_toolTipRect = sectionRect(section), tip);
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m_lastToolTipSection = section;
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}
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}
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}
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// if (e->type()==TQEvent::MouseButtonPress) {
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// todo
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// }
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return TQHeader::eventFilter(watched, e);
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}
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void KexiTableViewHeader::slotSizeChange(int /*section*/, int /*oldSize*/, int /*newSize*/ )
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{
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if (m_lastToolTipSection>0)
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TQToolTip::remove(this, m_toolTipRect);
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m_lastToolTipSection = -1; //tooltip's rect is now invalid
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}
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void KexiTableViewHeader::setSelectionBackgroundColor(const TQColor &color)
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{
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m_selectionBackgroundColor = color;
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}
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TQColor KexiTableViewHeader::selectionBackgroundColor() const
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{
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return m_selectionBackgroundColor;
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}
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void KexiTableViewHeader::setSelectedSection(int section)
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{
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if (m_selectedSection==section || (section!=-1 && section>=count()))
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return;
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const int oldSection = m_selectedSection;
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m_selectedSection = section;
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if (oldSection!=-1)
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update(sRect(oldSection));
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if (m_selectedSection!=-1)
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update(sRect(m_selectedSection));
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}
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int KexiTableViewHeader::selectedSection() const
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{
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return m_selectedSection;
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}
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void KexiTableViewHeader::paintSection( TQPainter * p, int index, const TQRect & fr )
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{
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const bool paintSelection = index==m_selectedSection && index != -1;
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if (paintSelection) {
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static_cast<KexiTableViewHeaderStyle&>(style()).setBackgroundColor(
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KexiUtils::blendedColors(
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palette().active().background(), m_selectionBackgroundColor, 2, 1) );
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}
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TQHeader::paintSection( p, index, fr );
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if (paintSelection) { //revert the color for subsequent paints
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static_cast<KexiTableViewHeaderStyle&>(style()).setBackgroundColor(
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palette().active().background());
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}
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}
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#include "kexitableviewheader.moc"
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