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#include <lib/gui/eslider.h>
eSlider::eSlider(eWidget *parent): eWidget(parent), m_orientation(orHorizontal), m_start(0)
{
}
int eSlider::event(int event, void *data, void *data2)
{
switch (event)
{
case evtPaint:
{
ePtr<eWindowStyle> style;
gPainter &painter = *(gPainter*)data2;
getStyle(style);
style->paintBackground(painter, ePoint(0, 0), size());
style->setStyle(painter, eWindowStyle::styleLabel); // TODO - own style
painter.fill(m_currently_filled);
return 0;
}
case evtChangedSlider:
{
int num_pix = 0, start_pix = 0;
gRegion old_currently_filled = m_currently_filled;
int pixsize = (m_orientation == orHorizontal) ? size().width() : size().height();
if (m_min < m_max)
{
num_pix = pixsize * (m_value - m_start) / (m_max - m_min);
start_pix = pixsize * m_start / (m_max - m_min);
}
if (start_pix < 0)
{
num_pix += start_pix;
start_pix = 0;
}
if (num_pix < 0)
num_pix = 0;
if (m_orientation == orHorizontal)
m_currently_filled = eRect(start_pix, 0, num_pix, size().height());
else
m_currently_filled = eRect(0, start_pix, size().width(), num_pix);
// redraw what *was* filled before and now isn't.
invalidate(m_currently_filled - old_currently_filled);
// redraw what wasn't filled before and is now.
invalidate(old_currently_filled - m_currently_filled);
return 0;
}
default:
return eWidget::event(event, data, data2);
}
}
void eSlider::setValue(int value)
{
m_value = value;
event(evtChangedSlider);
}
void eSlider::setStartEnd(int start, int end)
{
m_value = end;
m_start = start;
event(evtChangedSlider);
}
void eSlider::setOrientation(int orientation)
{
m_orientation = orientation;
event(evtChangedSlider);
}
void eSlider::setRange(int min, int max)
{
m_min = min;
m_max = max;
event(evtChangedSlider);
}
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