Diffstat (limited to 'noncore/unsupported/qpdf/QPEOutputDev.cpp') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | noncore/unsupported/qpdf/QPEOutputDev.cpp | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/noncore/unsupported/qpdf/QPEOutputDev.cpp b/noncore/unsupported/qpdf/QPEOutputDev.cpp new file mode 100644 index 0000000..8d4e68e --- a/dev/null +++ b/noncore/unsupported/qpdf/QPEOutputDev.cpp @@ -0,0 +1,181 @@ +#include <aconf.h> + +#include "QPEOutputDev.h" + +#include <qapplication.h> +#include <qlabel.h> +#include "qbusybar.h" + + +QPEOutputDev::QPEOutputDev ( QWidget *parent, const char *name ) : QOutputDev ( parent, name ) +{ + m_counter = new QLabel ( this ); + m_counter-> setAlignment ( AlignCenter | SingleLine ); + + m_busybar = new QBusyBar ( this ); + m_busybar-> setParameters ( 12, 8, 200 ); + m_busybar-> hide ( ); + + setHScrollBarMode ( AlwaysOn ); + + m_isbusy = false; + + m_selectiondrag = false; + + setFocusPolicy ( WheelFocus ); +} + +void QPEOutputDev::startPage ( int pn, GfxState *st ) +{ + m_selection = QRect ( ); + m_selectiondrag = false; + + QOutputDev::startPage ( pn, st ); +} + + +void QPEOutputDev::setPageCount ( int actp, int maxp ) +{ + m_counter-> setText ( QString ( "%1 / %2" ). arg ( actp ). arg ( maxp )); +} + +void QPEOutputDev::setBusy ( bool b ) +{ + if ( b != m_isbusy ) { + if ( b ) { + m_busybar-> beginBusy ( ); + m_busybar-> show ( ); + m_counter-> hide ( ); + } + else { + m_counter-> show ( ); + m_busybar-> hide ( ); + m_busybar-> endBusy ( ); + } + m_isbusy = b; + } +} + +bool QPEOutputDev::isBusy ( ) const +{ + return m_isbusy; +} + +void QPEOutputDev::setHBarGeometry ( QScrollBar &hbar, int x, int y, int w, int h ) +{ + int delta = w * 3 / 10; + + m_counter-> setGeometry ( x, y, delta, h ); + m_busybar-> setGeometry ( x, y, delta, h ); + hbar. setGeometry ( x + delta, y, w - delta, h ); +} + + +void QPEOutputDev::keyPressEvent ( QKeyEvent *e ) +{ + switch ( e-> key ( )) { + case Key_Left: + scrollBy ( -10, 0 ); + break; + case Key_Right: + scrollBy ( 10, 0 ); + break; + case Key_Up: + scrollBy ( 0, -10 ); + break; + case Key_Down: + scrollBy ( 0, 10 ); + break; + + default: + QOutputDev::keyPressEvent ( e ); + } +} + + +void QPEOutputDev::drawContents ( QPainter *p, int clipx, int clipy, int clipw, int cliph ) +{ + QOutputDev::drawContents ( p, clipx, clipy, clipw, cliph ); + + if ( m_selection. isValid ( )) { + QRect clip ( clipx, clipy, clipw, cliph ); + + if ( m_selection. intersects ( clip )) { + RasterOp rop = p-> rasterOp ( ); + + p-> setRasterOp ( XorROP ); + p-> fillRect ( m_selection & clip, white ); + p-> setRasterOp ( rop ); + } + } +} + + +QRect QPEOutputDev::selection ( ) const +{ + return m_selection; +} + + +void QPEOutputDev::setSelection ( const QRect &r, bool scrollto ) +{ + QRect oldsel = m_selection; + m_selection = r; + + QArray<QRect> urects = ( QRegion ( oldsel ) ^ QRegion ( m_selection )). rects ( ); + + for ( uint i = 0; i < urects. count ( ); i++ ) + repaintContents ( urects [i] ); + + if ( scrollto ) { + QPoint c = r. center ( ); + + ensureVisible ( c. x ( ), c. y ( ), r. width ( ) / 2 + 5, r. height ( ) / 2 + 5 ); + } + + if ( !m_selectiondrag ) + emit selectionChanged ( m_selection ); +} + + +void QPEOutputDev::viewportMousePressEvent ( QMouseEvent *e ) +{ + if ( e-> button ( ) == LeftButton ) { + m_selectionstart = e-> pos ( ) + QPoint ( contentsX ( ), contentsY ( )); + m_selectioncursor = m_selectionstart; + m_selectiondrag = true; + + setSelection ( QRect ( m_selectionstart, QSize ( 0, 0 )), true ); + } +} + +void QPEOutputDev::viewportMouseMoveEvent ( QMouseEvent *e ) +{ + if ( e-> state ( ) & LeftButton ) { + if ( m_selectiondrag ) { + QPoint to ( e-> pos ( ) + QPoint ( contentsX ( ), contentsY ( ))); + + if ( to != m_selectioncursor ) { + setSelection ( QRect ( m_selectionstart, to ). normalize ( ), false ); + m_selectioncursor = to; + } + ensureVisible ( m_selectioncursor. x ( ), m_selectioncursor. y ( ), 5, 5 ); + } + } +} + + +void QPEOutputDev::viewportMouseReleaseEvent ( QMouseEvent *e ) +{ + if ( e-> button ( ) == LeftButton ) { + if ( m_selectiondrag ) { + m_selectiondrag = false; + + setSelection ( selection ( ), false ); // emit signal + } + else { + setSelection ( QRect ( 0, 0, 0, 0 ), false ); + } + } +} + |