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Reposition PlaylistSlider when list contents changes or something is resized.

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This commit is contained in:
Tobias Rundstrom 2006-03-11 18:45:26 -03:00
parent c4affb2619
commit 103e016cbd
4 changed files with 51 additions and 10 deletions
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42
Playlist.cpp
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@ -29,7 +29,7 @@ PlaylistScrollButton::mouseMoveEvent (QMouseEvent *event)
npos = m_slider->rect().height()-rect().height();
}
m_slider->doScroll (npos);
m_slider->doScroll ();
}
void
@ -52,19 +52,41 @@ PlaylistScroller::PlaylistScroller (PlaylistWidget *parent) : QWidget (parent)
m_button = new PlaylistScrollButton (this, Skin::PLS_SCROLL_0, Skin::PLS_SCROLL_1);
m_button->move (0, 0);
}
void
PlaylistScroller::setMax (uint max)
{
m_max = max;
repositionButton ();
}
int
uint
PlaylistScroller::getMax (void)
{
return rect().height()-m_button->rect().height();
}
uint
PlaylistScroller::getPos (void)
{
return (int)((float)(m_button->pos ().y ()) / (float)getMax() * (float)m_max);
}
void
PlaylistScroller::setPixmaps (Skin *skin)
{
m_pixmap = skin->getPls (Skin::PLS_RFILL2_0);
}
void
PlaylistScroller::repositionButton (void)
{
PlaylistWidget *pw = dynamic_cast<PlaylistWidget *>(parent ());
/* x = 182.6 / (454 - 242) * 224 */
int bpos = (int)((float)(pw->getOffset ()) / (float)m_max * (float) getMax ());
m_button->move (0, bpos);
}
void
PlaylistScroller::paintEvent (QPaintEvent *event)
{
@ -205,6 +227,7 @@ PlaylistWidget::PlaylistWidget (QWidget *parent) : QWidget (parent)
m_scroller = new PlaylistScroller (this);
connect (m_scroller, SIGNAL(scrolled(int)), this, SLOT(doScroll (int)));
connect (m_list, SIGNAL(sizeChanged(QSize)), this, SLOT(sizeChangedList (QSize)));
m_drag = new dragButton (this);
@ -212,16 +235,20 @@ PlaylistWidget::PlaylistWidget (QWidget *parent) : QWidget (parent)
resize (275, 300);
}
void
PlaylistWidget::sizeChangedList (QSize s)
{
m_scroller->setMax (s.height() - m_view->height());
}
void
PlaylistWidget::doScroll (int pos)
{
int npos = ((float)pos) / (float)(m_scroller->getMax()) * float(m_list->height() - m_view->height());
m_list->setOffset (npos);
if (npos == 0) {
m_list->setOffset (pos);
if (pos == 0) {
m_list->update ();
} else {
m_list->scroll (0, npos);
m_list->scroll (0, pos);
}
QApplication::sendPostedEvents (m_list, 0);
}
@ -231,6 +258,7 @@ PlaylistWidget::resizeEvent (QResizeEvent *event)
{
m_view->resize (size().width()-30, size().height()-20-38);
m_list->setSize (m_view->size().width(), m_view->size().height());
m_scroller->setMax (m_list->height() - m_view->height());
}
void