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