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50 lines
1.5 KiB
50 lines
1.5 KiB
#include "tools/cabana/chart/tiplabel.h"
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#include <QApplication>
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#include <QStylePainter>
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#include <QToolTip>
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#include "tools/cabana/settings.h"
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TipLabel::TipLabel(QWidget *parent) : QLabel(parent, Qt::ToolTip | Qt::FramelessWindowHint) {
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setForegroundRole(QPalette::ToolTipText);
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setBackgroundRole(QPalette::ToolTipBase);
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auto palette = QToolTip::palette();
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if (settings.theme != DARK_THEME) {
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palette.setColor(QPalette::ToolTipBase, QApplication::palette().color(QPalette::Base));
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palette.setColor(QPalette::ToolTipText, QRgb(0x404044)); // same color as chart label brush
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}
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setPalette(palette);
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ensurePolished();
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setMargin(1 + style()->pixelMetric(QStyle::PM_ToolTipLabelFrameWidth, nullptr, this));
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setAttribute(Qt::WA_ShowWithoutActivating);
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setTextFormat(Qt::RichText);
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setVisible(false);
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}
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void TipLabel::showText(const QPoint &pt, const QString &text, QWidget *w, const QRect &rect) {
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setText(text);
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if (!text.isEmpty()) {
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QSize extra(1, 1);
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resize(sizeHint() + extra);
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QPoint tip_pos(pt.x() + 12, rect.top() + 2);
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if (tip_pos.x() + size().width() >= rect.right()) {
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tip_pos.rx() = pt.x() - size().width() - 12;
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}
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if (rect.contains({tip_pos, size()})) {
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move(w->mapToGlobal(tip_pos));
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setVisible(true);
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return;
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}
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}
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setVisible(false);
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}
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void TipLabel::paintEvent(QPaintEvent *ev) {
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QStylePainter p(this);
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QStyleOptionFrame opt;
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opt.init(this);
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p.drawPrimitive(QStyle::PE_PanelTipLabel, opt);
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p.end();
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QLabel::paintEvent(ev);
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}
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