diff options
Diffstat (limited to 'src/app/DiskUsage/radialMap/segmentTip.cpp')
| -rw-r--r-- | src/app/DiskUsage/radialMap/segmentTip.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/app/DiskUsage/radialMap/segmentTip.cpp b/src/app/DiskUsage/radialMap/segmentTip.cpp new file mode 100644 index 0000000..2f2b31c --- /dev/null +++ b/src/app/DiskUsage/radialMap/segmentTip.cpp @@ -0,0 +1,163 @@ +//Author: Max Howell <max.howell@methylblue.com>, (C) 2003-4 +//Copyright: See COPYING file that comes with this distribution + +#include "fileTree.h" +#include "segmentTip.h" + +#include <tdeapplication.h> //installing eventFilters +#include <tdeglobal.h> +#include <tdeglobalsettings.h> +#include <tdelocale.h> +#include <kpixmapeffect.h> +#include <tqpainter.h> +#include <tqtooltip.h> //for its palette + + + +namespace RadialMap { + +SegmentTip::SegmentTip( uint h ) + : TQWidget( 0, 0, WNoAutoErase | WStyle_Customize | WStyle_NoBorder | WStyle_Tool | WStyle_StaysOnTop | WX11BypassWM ) + , m_cursorHeight( -h ) +{ + setBackgroundMode( TQt::NoBackground ); +} + +void +SegmentTip::moveto( TQPoint p, const TQWidget &canvas, bool placeAbove ) +{ + //**** this function is very slow and seems to be visibly influenced by operations like mapFromGlobal() (who knows why!) + // ** so any improvements are much desired + + //TODO uints could improve the class + p.rx() -= rect().center().x(); + p.ry() -= (placeAbove ? 8 + height() : m_cursorHeight - 8); + + const TQRect screen = TDEGlobalSettings::desktopGeometry( parentWidget() ); + + const int x = p.x(); + const int y = p.y(); + const int x2 = x + width(); + const int y2 = y + height(); //how's it ever gunna get below screen height?! (well you never know I spose) + const int sw = screen.width(); + const int sh = screen.height(); + + if( x < 0 ) p.setX( 0 ); + if( y < 0 ) p.setY( 0 ); + if( x2 > sw ) p.rx() -= x2 - sw; + if( y2 > sh ) p.ry() -= y2 - sh; + + + //I'm using this TQPoint to determine where to offset the bitBlt in m_pixmap + TQPoint offset = canvas.mapToGlobal( TQPoint() ) - p; + if( offset.x() < 0 ) offset.setX( 0 ); + if( offset.y() < 0 ) offset.setY( 0 ); + + + const TQRect alphaMaskRect( canvas.mapFromGlobal( p ), size() ); + const TQRect intersection( alphaMaskRect.intersect( canvas.rect() ) ); + + m_pixmap.resize( size() ); //move to updateTip once you are sure it can never be null + bitBlt( &m_pixmap, offset, &canvas, intersection, TQt::CopyROP ); + + TQPainter paint( &m_pixmap ); + paint.setPen( TQt::black ); + paint.setBrush( TQt::NoBrush ); + paint.drawRect( rect() ); + paint.end(); + + m_pixmap = KPixmapEffect::fade( m_pixmap, 0.6, TQToolTip::palette().color( TQPalette::Active, TQColorGroup::Background ) ); + + paint.begin( &m_pixmap ); + paint.drawText( rect(), AlignCenter, m_text ); + paint.end(); + + p += screen.topLeft(); //for Xinerama users + + move( x, y ); + show(); + update(); +} + +void +SegmentTip::updateTip( const File* const file, const Directory* const root ) +{ + const TQString s1 = file->fullPath( root ); + TQString s2 = file->humanReadableSize(); + TDELocale *loc = TDEGlobal::locale(); + const uint MARGIN = 3; + const uint pc = 100 * file->size() / root->size(); + uint maxw = 0; + uint h = fontMetrics().height()*2 + 2*MARGIN; + + if( pc > 0 ) s2 += TQString( " (%1%)" ).arg( loc->formatNumber( pc, 0 ) ); + + m_text = s1; + m_text += '\n'; + m_text += s2; + + if( file->isDir() ) + { + double files = static_cast<const Directory*>(file)->fileCount(); + const uint pc = uint((100 * files) / (double)root->fileCount()); + TQString s3 = i18n( "Files: %1" ).arg( loc->formatNumber( files, 0 ) ); + + if( pc > 0 ) s3 += TQString( " (%1%)" ).arg( loc->formatNumber( pc, 0 ) ); + + maxw = fontMetrics().width( s3 ); + h += fontMetrics().height(); + m_text += '\n'; + m_text += s3; + } + + uint + w = fontMetrics().width( s1 ); if( w > maxw ) maxw = w; + w = fontMetrics().width( s2 ); if( w > maxw ) maxw = w; + + resize( maxw + 2 * MARGIN, h ); +} + +bool +SegmentTip::event( TQEvent *e ) +{ + switch( e->type() ) + { + case TQEvent::Show: + kapp->installEventFilter( this ); + break; + case TQEvent::Hide: + kapp->removeEventFilter( this ); + break; + case TQEvent::Paint: + { + //TQPainter( this ).drawPixmap( 0, 0, m_pixmap ); + bitBlt( this, 0, 0, &m_pixmap ); + return true; + } + default: + ; + } + + return false/*TQWidget::event( e )*/; +} + +bool +SegmentTip::eventFilter( TQObject*, TQEvent *e ) +{ + switch ( e->type() ) + { + case TQEvent::Leave: +// case TQEvent::MouseButtonPress: +// case TQEvent::MouseButtonRelease: + case TQEvent::KeyPress: + case TQEvent::KeyRelease: + case TQEvent::FocusIn: + case TQEvent::FocusOut: + case TQEvent::Wheel: + hide(); //FALL THROUGH + default: + return false; //allow this event to passed to target + } +} + +} //namespace RadialMap |