diff options
Diffstat (limited to 'opensuse/tdelibs/smooth-scrolling.diff')
| -rw-r--r-- | opensuse/tdelibs/smooth-scrolling.diff | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/opensuse/tdelibs/smooth-scrolling.diff b/opensuse/tdelibs/smooth-scrolling.diff new file mode 100644 index 000000000..b369a6146 --- /dev/null +++ b/opensuse/tdelibs/smooth-scrolling.diff @@ -0,0 +1,267 @@ +Index: khtml/khtmlview.cpp +=================================================================== +--- khtml/khtmlview.cpp.orig ++++ khtml/khtmlview.cpp +@@ -151,6 +151,9 @@ public: + + KHTMLViewPrivate() + : underMouse( 0 ), underMouseNonShared( 0 ), visibleWidgets( 107 ) ++#ifndef NO_SMOOTH_SCROLL_HACK ++ , dx(0), dy(0), ddx(0), ddy(0), rdx(0), rdy(0), scrolling(false) ++#endif + { + #ifndef KHTML_NO_CARET + m_caretViewContext = 0; +@@ -396,6 +399,17 @@ public: + short m_mouseScroll_byY; + QTimer *m_mouseScrollTimer; + QWidget *m_mouseScrollIndicator; ++#ifndef NO_SMOOTH_SCROLL_HACK ++ QTimer timer2; ++ int dx; ++ int dy; ++ // Step size * 16 and residual to avoid huge difference between 1px/step and 2px/step ++ int ddx; ++ int ddy; ++ int rdx; ++ int rdy; ++ bool scrolling; ++#endif + }; + + #ifndef QT_NO_TOOLTIP +@@ -504,6 +518,11 @@ KHTMLView::KHTMLView( KHTMLPart *part, Q + init(); + + viewport()->show(); ++#ifndef NO_SMOOTH_SCROLL_HACK ++#define timer timer2 ++ connect(&d->timer, SIGNAL(timeout()), this, SLOT(scrollTick())); ++#undef timer ++#endif + } + + KHTMLView::~KHTMLView() +@@ -1544,7 +1563,7 @@ void KHTMLView::keyPressEvent( QKeyEvent + case Key_Down: + case Key_J: + if (!d->scrollTimerId || d->scrollSuspended) +- scrollBy( 0, 10 ); ++ scrollBy( 0, 10 * _ke->count() ); + if (d->scrollTimerId) + d->newScrollTimer(this, 0); + break; +@@ -1559,7 +1578,7 @@ void KHTMLView::keyPressEvent( QKeyEvent + case Key_Up: + case Key_K: + if (!d->scrollTimerId || d->scrollSuspended) +- scrollBy( 0, -10 ); ++ scrollBy( 0, -10 * _ke->count()); + if (d->scrollTimerId) + d->newScrollTimer(this, 0); + break; +@@ -1572,14 +1591,14 @@ void KHTMLView::keyPressEvent( QKeyEvent + case Key_Right: + case Key_L: + if (!d->scrollTimerId || d->scrollSuspended) +- scrollBy( 10, 0 ); ++ scrollBy( 10 * _ke->count(), 0 ); + if (d->scrollTimerId) + d->newScrollTimer(this, 0); + break; + case Key_Left: + case Key_H: + if (!d->scrollTimerId || d->scrollSuspended) +- scrollBy( -10, 0 ); ++ scrollBy( -10 * _ke->count(), 0 ); + if (d->scrollTimerId) + d->newScrollTimer(this, 0); + break; +@@ -1712,8 +1731,16 @@ void KHTMLView::keyReleaseEvent(QKeyEven + d->scrollSuspendPreActivate = false; + if( _ke->key() == Key_Shift && d->scrollSuspendPreActivate && _ke->state() == Qt::ShiftButton + && !(KApplication::keyboardMouseState() & Qt::ShiftButton)) ++ { + if (d->scrollTimerId) +- d->scrollSuspended = !d->scrollSuspended; ++ { ++ d->scrollSuspended = !d->scrollSuspended; ++#ifndef NO_SMOOTH_SCROLL_HACK ++ if( d->scrollSuspended ) ++ stopScrolling(); ++#endif ++ } ++ } + + if (d->accessKeysEnabled) + { +@@ -3259,7 +3286,11 @@ void KHTMLView::viewportWheelEvent(QWhee + else + { + d->scrollBarMoved = true; ++#ifndef NO_SMOOTH_SCROLL_HACK ++ scrollViewWheelEvent( e ); ++#else + QScrollView::viewportWheelEvent( e ); ++#endif + + QMouseEvent *tempEvent = new QMouseEvent( QEvent::MouseMove, QPoint(-1,-1), QPoint(-1,-1), Qt::NoButton, e->state() ); + emit viewportMouseMoveEvent ( tempEvent ); +@@ -4462,4 +4493,117 @@ void KHTMLView::moveCaretToLineEnd() + + #endif // KHTML_NO_CARET + ++#ifndef NO_SMOOTH_SCROLL_HACK ++#define timer timer2 ++ ++// All scrolls must be completed within 240ms of last keypress ++static const int SCROLL_TIME = 240; ++// Each step is 20 ms == 50 frames/second ++static const int SCROLL_TICK = 20; ++ ++void KHTMLView::scrollBy(int dx, int dy) ++{ ++ KConfigGroup cfg( KGlobal::config(), "KDE" ); ++ if( !cfg.readBoolEntry( "SmoothScrolling", true )) { ++ QScrollView::scrollBy( dx, dy ); ++ return; ++ } ++ // scrolling destination ++ int full_dx = d->dx + dx; ++ int full_dy = d->dy + dy; ++ ++ // scrolling speed ++ int ddx = 0; ++ int ddy = 0; ++ ++ int steps = SCROLL_TIME/SCROLL_TICK; ++ ++ ddx = (full_dx*16)/steps; ++ ddy = (full_dy*16)/steps; ++ ++ // don't go under 1px/step ++ if (ddx > 0 && ddx < 16) ddx = 16; ++ if (ddy > 0 && ddy < 16) ddy = 16; ++ if (ddx < 0 && ddx > -16) ddx = -16; ++ if (ddy < 0 && ddy > -16) ddy = -16; ++ ++ d->dx = full_dx; ++ d->dy = full_dy; ++ d->ddx = ddx; ++ d->ddy = ddy; ++ ++ if (!d->scrolling) { ++ scrollTick(); ++ startScrolling(); ++ } ++} ++ ++void KHTMLView::scrollTick() { ++ if (d->dx == 0 && d->dy == 0) { ++ stopScrolling(); ++ return; ++ } ++ ++ int tddx = d->ddx + d->rdx; ++ int tddy = d->ddy + d->rdy; ++ ++ int ddx = tddx / 16; ++ int ddy = tddy / 16; ++ d->rdx = tddx % 16; ++ d->rdy = tddy % 16; ++ ++ if (d->dx > 0 && ddx > d->dx) ddx = d->dx; ++ else ++ if (d->dx < 0 && ddx < d->dx) ddx = d->dx; ++ ++ if (d->dy > 0 && ddy > d->dy) ddy = d->dy; ++ else ++ if (d->dy < 0 && ddy < d->dy) ddy = d->dy; ++ ++ d->dx -= ddx; ++ d->dy -= ddy; ++ ++// QScrollView::setContentsPos( contentsX() + ddx, contentsY() + ddy); ++ kapp->syncX(); ++ QScrollView::scrollBy(ddx, ddy); ++// Unaccelerated X can get seriously overloaded by scrolling and for some reason ++// will send KeyPress events only infrequently. This should help to reduce ++// the load. ++ kapp->syncX(); ++} ++ ++void KHTMLView::startScrolling() ++{ ++ d->scrolling = true; ++ d->timer.start(SCROLL_TICK, false); ++} ++ ++void KHTMLView::stopScrolling() ++{ ++ d->timer.stop(); ++ d->dx = d->dy = 0; ++ d->scrolling = false; ++} ++ ++// Overloaded from QScrollView and QScrollBar ++void KHTMLView::scrollViewWheelEvent( QWheelEvent *e ) ++{ ++ int pageStep = verticalScrollBar()->pageStep(); ++ int lineStep = verticalScrollBar()->lineStep(); ++ int step = QMIN( QApplication::wheelScrollLines()*lineStep, pageStep ); ++ if ( ( e->state() & ControlButton ) || ( e->state() & ShiftButton ) ) ++ step = pageStep; ++ ++ if(e->orientation() == Horizontal) ++ scrollBy(-((e->delta()*step)/120), 0); ++ else if(e->orientation() == Vertical) ++ scrollBy(0,-((e->delta()*step)/120)); ++ ++ e->accept(); ++} ++ ++#undef timer ++ ++#endif // NO_SMOOTH_SCROLL_HACK ++ + #undef DEBUG_CARETMODE +Index: khtml/khtmlview.h +=================================================================== +--- khtml/khtmlview.h.orig ++++ khtml/khtmlview.h +@@ -181,6 +181,11 @@ signals: + void hideAccessKeys(); + void repaintAccessKeys(); + void findAheadActive( bool ); ++//#define NO_SMOOTH_SCROLL_HACK ++#ifndef NO_SMOOTH_SCROLL_HACK ++public slots: ++ void scrollBy(int dx, int dy); ++#endif + + protected: + void clear(); +@@ -211,9 +216,23 @@ protected: + void contentsContextMenuEvent ( QContextMenuEvent *_ce ); + void doAutoScroll(); + void timerEvent ( QTimerEvent * ); ++ ++#ifndef NO_SMOOTH_SCROLL_HACK ++ void startScrolling(); ++ void stopScrolling(); ++#ifndef QT_NO_WHEELEVENT ++ void scrollViewWheelEvent( QWheelEvent* e ); ++#endif ++#endif ++ + protected slots: + void slotPaletteChanged(); + void slotScrollBarMoved(); ++#ifndef NO_SMOOTH_SCROLL_HACK ++ void scrollTick(); ++#else ++ void scrollTick() {}; // moc cannot handle #if ++#endif + + private slots: + void tripleClickTimeout(); |