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QmlProfiler: More precise drawing for selection rectangles

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Keep the rectangles in the row they belong to and use MiterJoin to get
sharp corners.

Change-Id: I0dc9106975ccb550bfb5b5645865d0ea9318d577
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
This commit is contained in:
Ulf Hermann
2014-11-04 11:53:50 +01:00
committed by Ulf Hermann
parent 0e83172b0b
commit aa34d93e3c
1 changed files with 37 additions and 14 deletions
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51
src/plugins/qmlprofiler/timelinerenderer.cpp
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@@ -211,6 +211,13 @@ void TimelineRenderer::drawItemsToPainter(QPainter *p, int modelIndex, int fromI
void TimelineRenderer::drawSelectionBoxes(QPainter *p, int modelIndex, int fromIndex, int toIndex)
{
const uint strongLineWidth = 3;
const uint lightLineWidth = 2;
static const QColor strongColor = Qt::blue;
static const QColor lockedStrongColor = QColor(96,0,255);
static const QColor lightColor = strongColor.lighter(130);
static const QColor lockedLightColor = lockedStrongColor.lighter(130);
if (m_selectedItem == -1)
return;
@@ -223,17 +230,14 @@ void TimelineRenderer::drawSelectionBoxes(QPainter *p, int modelIndex, int fromI
p->save();
QColor selectionColor = Qt::blue;
if (m_selectionLocked)
selectionColor = QColor(96,0,255);
QPen strongPen(selectionColor, 3);
QPen lightPen(QBrush(selectionColor.lighter(130)), 2);
QPen strongPen(m_selectionLocked ? lockedStrongColor : strongColor, strongLineWidth);
strongPen.setJoinStyle(Qt::MiterJoin);
QPen lightPen(m_selectionLocked ? lockedLightColor : lightColor, lightLineWidth);
lightPen.setJoinStyle(Qt::MiterJoin);
p->setPen(lightPen);
p->setBrush(Qt::transparent);
int currentX, currentY, itemWidth;
QRect selectedItemRect(0,0,0,0);
for (int i = fromIndex; i <= toIndex; i++) {
if (m_profilerModelProxy->selectionId(modelIndex, i) != id)
continue;
@@ -250,15 +254,34 @@ void TimelineRenderer::drawSelectionBoxes(QPainter *p, int modelIndex, int fromI
getItemXExtent(modelIndex, i, currentX, itemWidth);
if (i == m_selectedItem)
selectedItemRect = QRect(currentX, currentY - 1, itemWidth, itemHeight + 1);
else
p->drawRect(currentX, currentY, itemWidth, itemHeight);
}
// draw the selected item rectangle the last, so that it's overlayed
if (selectedItemRect.width() != 0) {
p->setPen(strongPen);
p->drawRect(selectedItemRect);
// Draw the lines at the right offsets. The lines have a width and we don't want them to
// bleed into the previous or next row as that may belong to a different model and get cut
// off.
int lineWidth = p->pen().width();
itemWidth -= lineWidth;
itemHeight -= lineWidth;
currentX += lineWidth / 2;
currentY += lineWidth / 2;
// If it's only a line or point, draw it left/top aligned.
if (itemWidth > 0) {
if (itemHeight > 0) {
p->drawRect(currentX, currentY, itemWidth, itemHeight);
} else {
p->drawLine(currentX, currentY + itemHeight, currentX + itemWidth,
currentY + itemHeight);
}
} else if (itemHeight > 0) {
p->drawLine(currentX + itemWidth, currentY, currentX + itemWidth,
currentY + itemHeight);
} else {
p->drawPoint(currentX + itemWidth, currentY + itemHeight);
}
if (i == m_selectedItem)
p->setPen(lightPen);
}
p->restore();