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Fix tooltip disappearing past right border during zooming in near the right border

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This commit is contained in:
LoudSnorer 2022-05-09 18:26:17 -04:00
parent 4be1194d48
commit 68d5063c85
1 changed files with 43 additions and 33 deletions
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76
oscar/Graphs/gGraphView.cpp
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@ -116,6 +116,7 @@ void gToolTip::display(QString text, int x, int y, ToolTipAlignment align, int t
m_alignment = align; m_alignment = align;
m_text = text; m_text = text;
// for testing add mouse position to tooltip. QString("%1:(%2,%3)").arg(text).arg(m_graphview->currentMousePos().x()).arg(m_graphview->currentMousePos().y());
m_visible = true; m_visible = true;
// TODO: split multiline here // TODO: split multiline here
//calcSize(m_text,tw,th); //calcSize(m_text,tw,th);
@ -139,53 +140,62 @@ void gToolTip::cancel()
timer->stop(); timer->stop();
} }
QRect gToolTip::calculateRect(QPainter &painter) QRect gToolTip::calculateRect(QPainter &painter)
{ {
int x = m_pos.x(); int x = m_pos.x();
int y = m_pos.y(); int y = m_pos.y();
// calcualte size of tooltip
QRect rect(x, y, 0, 0); QRect rect(x, y, 0, 0);
painter.setFont(*m_font); painter.setFont(*m_font);
rect = painter.boundingRect(rect, Qt::AlignCenter, m_text); rect = painter.boundingRect(rect, Qt::AlignCenter, m_text);
// Set preffered locations
rect.moveTo(m_pos);
// Add borders arround text area
// add space around rectangle horizontilally left & right sides.
int w = rect.width() + m_spacer * 2; int w = rect.width() + m_spacer * 2;
int xx = rect.x() - m_spacer;
if (xx < 0) { xx = 0; }
rect.setLeft(xx);
rect.setTop(rect.y() - 15);
rect.setWidth(w); rect.setWidth(w);
int z = rect.x() + rect.width(); // add space around rectangle vertically
int h = rect.height() + m_spacer * 2;
rect.setHeight(h);
if (z > m_graphview->width() - 10) { /*
rect.setLeft(m_graphview->width() - 2 - rect.width()); now must verify that the tooltip must fit inti the display area.
rect.setRight(m_graphview->width() - 2); if part of the display can not be displayed (outside the bounding rectangle of the graph then
the tool tip will be moved to fit.
If the tooltip is too big . (does not fit) then preference is giver to the top and left sides.
the following checks are executed in the order.
1) do right side
2) do left side
3) do bottom
4) do top.
these checks are independant of alignment requirements.
*/
// get display area
QRect displayRect = m_graphview->geometry();
int right = displayRect.right() -2; // allow tooltip border to be displayed
int left = displayRect.left();
int top = displayRect.top();
int bottom = displayRect.bottom();
if (rect.right() > right ) {
rect.moveRight(right);
}
if (rect.left() < left ) {
rect.moveLeft(left);
}
if (rect.bottom() > bottom ) {
rect.moveBottom(bottom);
}
if (rect.top() < top ) {
rect.moveTop(top);
} }
int h = rect.height();
if (rect.y() < 0) {
rect.setY(0);
rect.setHeight(h);
}
if (m_alignment == TT_AlignRight) {
rect.moveTopRight(m_pos);
if ((x-w) < 0) {
rect.moveLeft(0);
}
} else if (m_alignment == TT_AlignLeft) {
rect.moveTopLeft(m_pos);
}
int bot = rect.bottom() - m_graphview->height();
if (bot > 0) {
rect.setTop(rect.top()-bot);
rect.setBottom(m_graphview->height());
}
return rect; return rect;
} }