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Diffstat (limited to 'kdesktop/tdefileividesktop.cpp')
| -rw-r--r-- | kdesktop/tdefileividesktop.cpp | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/kdesktop/tdefileividesktop.cpp b/kdesktop/tdefileividesktop.cpp new file mode 100644 index 000000000..420aeac4f --- /dev/null +++ b/kdesktop/tdefileividesktop.cpp @@ -0,0 +1,241 @@ +/* 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 "tdefileividesktop.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 = TDEGlobalSettings::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() : + ( tqGray( 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; +} + |