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Diffstat (limited to 'src/gvcore/fullscreenbar.cpp')
| -rw-r--r-- | src/gvcore/fullscreenbar.cpp | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/src/gvcore/fullscreenbar.cpp b/src/gvcore/fullscreenbar.cpp new file mode 100644 index 0000000..fb837ec --- /dev/null +++ b/src/gvcore/fullscreenbar.cpp @@ -0,0 +1,171 @@ +// vim:set tabstop=4 shiftwidth=4 noexpandtab: +/* +Gwenview - A simple image viewer for KDE +Copyright 2000-2004 Aur�ien G�eau + +This program is free software; you can redistribute it and/or +modify it under the terms of the GNU General Public License +as published by the Free Software Foundation; either version 2 +of the License, or (at your option) any later version. + +This program 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 General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +*/ +// Qt +#include <qbitmap.h> +#include <qevent.h> +#include <qlayout.h> +#include <qpainter.h> +#include <qtimer.h> + +// KDE +#include <kdebug.h> + +// Local +#include "fullscreenbar.moc" +namespace Gwenview { + + +const int FULLSCREEN_ICON_SIZE = 32; +const int FULLSCREEN_LABEL_RADIUS = 6; +// Intervals are in milliseconds +const int SLIDE_IN_INTERVAL = 4; +const int SLIDE_OUT_INTERVAL = 12; +// Step is in pixels +const int SLIDE_STEP = 4; + + +static void fillMask(QPainter& painter, const QRect& rect) { + painter.fillRect( + rect.left(), + rect.top(), + rect.width() - FULLSCREEN_LABEL_RADIUS, + rect.height(), + painter.brush()); + + painter.fillRect( + rect.right() - FULLSCREEN_LABEL_RADIUS + 1, + rect.top(), + FULLSCREEN_LABEL_RADIUS, + rect.height() - FULLSCREEN_LABEL_RADIUS, + painter.brush()); + + painter.drawPie( + rect.right() - 2*FULLSCREEN_LABEL_RADIUS + 1, + rect.bottom() - 2*FULLSCREEN_LABEL_RADIUS + 1, + FULLSCREEN_LABEL_RADIUS*2, FULLSCREEN_LABEL_RADIUS*2, + 0, -16*90); +} + + +enum BarState { OUT, SLIDING_OUT, SLIDING_IN, IN }; + + +struct FullScreenBar::Private { + QTimer mTimer; + BarState mState; + bool mFirstShow; +}; + + +FullScreenBar::FullScreenBar(QWidget* parent) +: KToolBar(parent, "FullScreenBar") { + d=new Private; + d->mState=OUT; + d->mFirstShow=true; + setIconSize(FULLSCREEN_ICON_SIZE); + setMovingEnabled(false); + + QColor bg=colorGroup().highlight(); + QColor fg=colorGroup().highlightedText(); + QPalette pal(palette()); + pal.setColor(QColorGroup::Background, bg); + pal.setColor(QColorGroup::Foreground, fg); + pal.setColor(QColorGroup::Button, bg); + pal.setColor(QColorGroup::ButtonText, fg); + setPalette(pal); + + // Timer + connect(&d->mTimer, SIGNAL(timeout()), this, SLOT(slotUpdateSlide()) ); +} + + +FullScreenBar::~FullScreenBar() { + delete d; +} + + +void FullScreenBar::resizeEvent(QResizeEvent* event) { + KToolBar::resizeEvent(event); + + // Create a mask + QPainter painter; + QBitmap mask(size(), true); + painter.begin(&mask); + painter.setBrush(Qt::white); + fillMask(painter, rect()); + painter.end(); + + setMask(mask); +} + + +void FullScreenBar::showEvent(QShowEvent* event) { + KToolBar::showEvent(event); + // Make sure the bar position corresponds to the OUT state + if (!d->mFirstShow) return; + d->mFirstShow=false; + move(0, -height()); + layout()->setResizeMode(QLayout::Fixed); +} + + +void FullScreenBar::slideIn() { + if (d->mState!=IN) { + d->mState=SLIDING_IN; + d->mTimer.start(SLIDE_IN_INTERVAL); + } +} + + +void FullScreenBar::slideOut() { + if (d->mState!=OUT) { + d->mState=SLIDING_OUT; + d->mTimer.start(SLIDE_OUT_INTERVAL); + } +} + + +void FullScreenBar::slotUpdateSlide() { + int pos=y(); + + switch (d->mState) { + case SLIDING_OUT: + pos-=SLIDE_STEP; + if (pos<=-height()) { + d->mState=OUT; + d->mTimer.stop(); + } + break; + case SLIDING_IN: + pos+=SLIDE_STEP; + if (pos>=0) { + pos=0; + d->mState=IN; + d->mTimer.stop(); + } + break; + default: + kdWarning() << k_funcinfo << "We should not get there\n"; + } + move(0, pos); +} + +} // namespace |