153 lines
2.8 KiB
C++
153 lines
2.8 KiB
C++
#include "scrollwidget.h"
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#include "scrollwidget_p.h"
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#include <QPainter>
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#include <QApplication>
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#include "scrollwidget_internal.h"
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#include "lib/style.h"
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ScrollBarPrivate::ScrollBarPrivate(ScrollBar *q)
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: q_ptr(q),
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machine(new ScrollBarStateMachine(q)),
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hideOnMouseOut(true),
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useThemeColors(true)
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{
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}
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ScrollBarPrivate::~ScrollBarPrivate()
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{
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}
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void ScrollBarPrivate::init()
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{
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Q_Q(ScrollBar);
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q->setMouseTracking(true);
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machine->start();
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QCoreApplication::processEvents();
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}
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ScrollBar::ScrollBar(QWidget *parent)
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: QScrollBar(parent),
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d_ptr(new ScrollBarPrivate(this))
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{
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d_func()->init();
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}
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ScrollBar::~ScrollBar()
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{
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}
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void ScrollBar::setUseThemeColors(bool value)
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{
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Q_D(ScrollBar);
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d->useThemeColors = value;
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update();
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}
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bool ScrollBar::useThemeColors() const
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{
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Q_D(const ScrollBar);
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return d->useThemeColors;
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}
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void ScrollBar::setBackgroundColor(const QColor &color)
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{
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Q_D(ScrollBar);
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d->backgroundColor = color;
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setUseThemeColors(false);
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}
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QColor ScrollBar::backgroundColor() const
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{
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Q_D(const ScrollBar);
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if (d->useThemeColors || !d->backgroundColor.isValid()) {
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return Style::instance().themeColor("border").darker(110);
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} else {
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return d->backgroundColor;
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}
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}
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void ScrollBar::setSliderColor(const QColor &color)
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{
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Q_D(ScrollBar);
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d->sliderColor = color;
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setUseThemeColors(false);
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}
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QColor ScrollBar::sliderColor() const
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{
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Q_D(const ScrollBar);
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if (d->useThemeColors || !d->sliderColor.isValid()) {
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return Style::instance().themeColor("primary1");
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} else {
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return d->sliderColor;
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}
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}
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void ScrollBar::setHideOnMouseOut(bool state)
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{
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Q_D(ScrollBar);
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d->hideOnMouseOut = state;
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update();
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}
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bool ScrollBar::hideOnMouseOut() const
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{
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Q_D(const ScrollBar);
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return d->hideOnMouseOut;
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}
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QSize ScrollBar::sizeHint() const
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{
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return QSize(10, 1);
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}
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void ScrollBar::paintEvent(QPaintEvent *event)
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{
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Q_UNUSED(event)
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Q_D(ScrollBar);
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QPainter painter(this);
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painter.fillRect(rect(), palette().color(QPalette::Window));
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int x, y, w, h;
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rect().getRect(&x, &y, &w, &h);
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QMargins margins(2, 2, 2, 2);
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QBrush brush;
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brush.setStyle(Qt::SolidPattern);
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brush.setColor(backgroundColor());
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painter.setBrush(brush);
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painter.setPen(Qt::NoPen);
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if (d->hideOnMouseOut) {
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painter.setOpacity(d->machine->opacity());
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}
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painter.drawRect(rect().marginsRemoved(margins));
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const qreal q = h / static_cast<qreal>(maximum() - minimum() + pageStep());
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QRect handle = Qt::Horizontal == orientation()
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? QRect(sliderPosition()*q, y, pageStep()*q, h)
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: QRect(x, sliderPosition()*q, w, pageStep()*q);
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brush.setColor(sliderColor());
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painter.setBrush(brush);
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painter.drawRect(handle.marginsRemoved(margins));
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}
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