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(EasyGraphicsScrollbar) Minimap optimization

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This commit is contained in:
Victor Zarubkin 2016-11-16 22:28:38 +03:00
parent 07b78ea92f
commit 7e3d27a580
1 changed files with 12 additions and 1 deletions
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13
profiler_gui/easy_graphics_scrollbar.cpp
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@ -247,12 +247,20 @@ void EasyMinimapItem::paint(QPainter* _painter, const QStyleOptionGraphicsItem*
auto const calculate_color = gotFrame ? calculate_color2 : calculate_color1;
auto const k = gotFrame ? sqr(sqr(heightRevert * frameCoeff)) : heightRevert;
qreal previous_x = -1e30, previous_h = -1e30;
auto& items = *m_pSource;
for (const auto& item : items)
{
// Draw rectangle
qreal item_x = item.left() * currentScale;
qreal item_w = ::std::max(item.width() * currentScale, 1.0);
qreal item_r = item_x + item_w;
const auto h = ::std::max((item.width() - m_minDuration) * coeff, 2.0);
if (h < previous_h && item_r < previous_x)
continue;
const auto col = calculate_color(h, k);
const auto color = 0x00ffffff & QColor::fromHsvF((1.0 - col) * 0.375, 0.85, 0.85).rgb();
@ -264,8 +272,11 @@ void EasyMinimapItem::paint(QPainter* _painter, const QStyleOptionGraphicsItem*
_painter->setBrush(brush);
}
rect.setRect(item.left() * currentScale, bottom - h, ::std::max(item.width() * currentScale, 1.0), h);
rect.setRect(item_x, bottom - h, item_w, h);
_painter->drawRect(rect);
previous_x = item_r;
previous_h = h;
}
_painter->setPen(Qt::darkGray);