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/* This file is proposed to be part of the KDE base.
* Copyright (C) 2003 Laur Ivan <laurivan@eircom.net>
*
* Many thanks to:
* - Bernardo Hung <deciare@gta.igs.net> for the enhanced shadow
* algorithm (currently used)
* - Tim Jansen <tim@tjansen.de> for the API updates and fixes.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License version 2 as published by the Free Software Foundation.
*
* This library 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 library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <stdio.h>
#include <tqcolor.h>
#include <tqpalette.h>
#include <tqstring.h>
#include <tqpainter.h>
#include <tqstyle.h>
#include <kwordwrap.h>
#include <kiconview.h>
#include <kdebug.h>
#include <kglobalsettings.h>
#include <kshadowengine.h>
#include "kdesktopshadowsettings.h"
#include "kfileividesktop.h"
//#define DEBUG
/* Changelog:
*/
KFileIVIDesktop::KFileIVIDesktop(KonqIconViewWidget *iconview, KFileItem* fileitem,
int size, KShadowEngine *shadow) :
KFileIVI(iconview, fileitem, size),
m_selectedImage(0L),
m_normalImage(0L),
_selectedUID(0),
_normalUID(0)
{
m_shadow = shadow;
oldText = "";
calcRect( text() ); // recalculate rect including shadow
}
KFileIVIDesktop::~KFileIVIDesktop()
{
delete m_selectedImage;
delete m_normalImage;
}
void KFileIVIDesktop::calcRect( const TQString& _text )
{
KIconViewItem::calcRect( _text );
if ( !iconView() || !m_shadow ||
!wordWrap() || !( static_cast<KDesktopShadowSettings *>
( m_shadow->shadowSettings() ) )->isEnabled() )
return;
int spread = shadowThickness();
TQRect itemTextRect = textRect();
TQRect itemRect = rect();
itemTextRect.setBottom( itemTextRect.bottom() + spread );
itemTextRect.setRight( itemTextRect.right() + spread );
itemRect.setBottom( itemRect.bottom() + spread );
itemRect.setRight( itemRect.right() + spread );
setTextRect( itemTextRect );
setItemRect( itemRect );
}
void KFileIVIDesktop::paintItem( TQPainter *p, const TQColorGroup &cg)
{
TQColorGroup colors = updateColors(cg);
TQIconView* view = iconView();
Q_ASSERT( view );
if ( !view )
return;
if ( !wordWrap() )
return;
p->save();
// draw the pixmap as in KIconViewItem::paintItem(...)
paintPixmap(p, colors);
//
// Paint the text as shadowed if the shadow is available
//
if (m_shadow != 0L && (static_cast<KDesktopShadowSettings *> (m_shadow->shadowSettings()))->isEnabled())
drawShadowedText(p, colors);
else {
paintFontUpdate(p);
paintText(p, colors);
}
p->restore();
paintOverlay(p);
}
bool KFileIVIDesktop::shouldUpdateShadow(bool selected)
{
unsigned long uid = (static_cast<KDesktopShadowSettings *> (m_shadow->shadowSettings()))->UID();
TQString wrapped = wordWrap()->wrappedString();
if (wrapped != oldText){
oldText = wrapped;
_selectedUID = _normalUID = 0;
}
if (selected == true)
return (uid != _selectedUID);
else
return (uid != _normalUID);
return false;
}
void KFileIVIDesktop::drawShadowedText( TQPainter *p, const TQColorGroup &cg )
{
bool drawRoundedRect = KGlobalSettings::iconUseRoundedRect();
int textX;
if (drawRoundedRect == true)
textX = textRect( FALSE ).x() + 4;
else
textX = textRect( FALSE ).x() + 2;
int textY = textRect( FALSE ).y();
int align = ((KIconView *) iconView())->itemTextPos() == TQIconView::Bottom
? AlignHCenter : AlignAuto;
bool rebuild = shouldUpdateShadow(isSelected());
KDesktopShadowSettings *settings = (KDesktopShadowSettings *) (m_shadow->shadowSettings());
unsigned long uid = settings->UID();
p->setFont(iconView()->font());
paintFontUpdate(p);
TQColor shadow;
TQColor text;
int spread = shadowThickness();
if ( isSelected() && settings->selectionType() != KShadowSettings::InverseVideoOnSelection ) {
text = cg.highlightedText();
TQRect rect = textRect( false );
rect.setRight( rect.right() - spread );
rect.setBottom( rect.bottom() - spread + 1 );
if (drawRoundedRect == true) {
p->setBrush( TQBrush( cg.highlight() ) );
p->setPen( TQPen( cg.highlight() ) );
p->drawRoundRect( rect,
1000 / rect.width(),
1000 / rect.height() );
}
else {
p->fillRect( textRect( false ), cg.highlight() );
}
}
else {
// use shadow
if ( isSelected() ) {
// inverse text and shadow colors
shadow = settings->textColor();
text = settings->bgColor();
if ( rebuild ) {
setSelectedImage( buildShadow( p, align, shadow ) );
_selectedUID = uid;
}
}
else {
text = settings->textColor();
shadow = ( settings->bgColor().isValid() ) ? settings->bgColor() :
( qGray( text.rgb() ) > 127 ) ? black : white;
if (rebuild) {
setNormalImage(buildShadow(p, align, shadow));
_normalUID = uid;
}
}
// draw the shadow
int shadowX = textX - spread + settings->offsetX();
int shadowY = textY - spread + settings->offsetY();
p->drawImage(shadowX, shadowY,
(isSelected()) ? *selectedImage() : *normalImage(),
0, 0, -1, -1, DITHER_FLAGS);
}
// draw the text
p->setPen(text);
wordWrap()->drawText( p, textX, textY, align | KWordWrap::Truncate );
}
TQImage *KFileIVIDesktop::buildShadow( TQPainter *p, const int align,
TQColor &shadowColor )
{
TQPainter pixPainter;
int spread = shadowThickness();
TQPixmap textPixmap(textRect( FALSE ).width() + spread * 2 + 2,
textRect( FALSE ).height() + spread * 2 + 2);
textPixmap.fill(TQColor(0,0,0));
textPixmap.setMask( textPixmap.createHeuristicMask(TRUE) );
pixPainter.begin(&textPixmap);
pixPainter.setPen(white); // get the pen from the root painter
pixPainter.setFont(p->font()); // get the font from the root painter
wordWrap()->drawText( &pixPainter, spread, spread, align | KWordWrap::Truncate );
pixPainter.end();
return new TQImage(m_shadow->makeShadow(textPixmap, shadowColor));
}
int KFileIVIDesktop::shadowThickness() const
{
return ( ( m_shadow->shadowSettings()->thickness() + 1 ) >> 1 ) + 1;
}
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