158 lines
3.8 KiB
C++
158 lines
3.8 KiB
C++
#ifndef SLIDER_P_H
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#define SLIDER_P_H
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#include "slider.h"
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#include <QPainter>
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#include "lib/style.h"
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#define THUMB_OUTER_SIZE 35
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class SliderPrivate
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{
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Q_DISABLE_COPY(SliderPrivate)
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Q_DECLARE_PUBLIC(Slider)
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public:
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SliderPrivate(Slider *parent)
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: q_ptr(parent),
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hoverTrack(false),
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hoverThumb(false),
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step(false),
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stepTo(0)
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{
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parent->setMouseTracking(true);
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}
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QRectF trackGeometry() const
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{
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Q_Q(const Slider);
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return Qt::Horizontal == q->orientation()
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? QRectF(THUMB_OUTER_SIZE/2, q->rect().height()/2 - 1,
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q->rect().width() - THUMB_OUTER_SIZE, 2)
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: QRectF(q->rect().width()/2 - 1, THUMB_OUTER_SIZE/2, 2,
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q->rect().height() - THUMB_OUTER_SIZE);
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}
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void paintTrack(QPainter *painter)
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{
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painter->save();
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QBrush brush;
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brush.setStyle(Qt::SolidPattern);
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brush.setColor(QColor(0, 0, 0, 255));
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painter->fillRect(trackGeometry(), brush);
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painter->restore();
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#ifdef DEBUG_LAYOUT
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if (hoverTrack) {
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painter->save();
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painter->setPen(Qt::red);
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painter->drawRect(trackGeometry());
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painter->restore();
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}
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#endif
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}
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QRectF thumbGeometry() const
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{
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Q_Q(const Slider);
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const int span = Qt::Horizontal == q->orientation()
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? q->rect().width() - THUMB_OUTER_SIZE
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: q->rect().height() - THUMB_OUTER_SIZE;
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const int pos = Style::sliderPositionFromValue(
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q->minimum(),
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q->maximum(),
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q->sliderPosition(),
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span,
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false);
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return Qt::Horizontal == q->orientation()
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? QRectF(pos, q->rect().height()/2 - THUMB_OUTER_SIZE/2,
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THUMB_OUTER_SIZE, THUMB_OUTER_SIZE)
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: QRectF(q->rect().width()/2 - THUMB_OUTER_SIZE/2, pos,
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THUMB_OUTER_SIZE, THUMB_OUTER_SIZE);
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}
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void paintHalo(QPainter *painter)
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{
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painter->save();
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QBrush brush;
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brush.setStyle(Qt::SolidPattern);
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brush.setColor(QColor(0, 0, 0, 20));
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painter->setBrush(brush);
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painter->setPen(Qt::NoPen);
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painter->setRenderHint(QPainter::Antialiasing);
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QRectF halo(0, 0, THUMB_OUTER_SIZE, THUMB_OUTER_SIZE);
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halo.moveCenter(thumbGeometry().center());
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painter->drawEllipse(halo);
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painter->restore();
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}
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void paintThumb(QPainter *painter)
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{
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painter->save();
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QBrush brush;
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brush.setStyle(Qt::SolidPattern);
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brush.setColor(QColor(0, 0, 0, 255));
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painter->setBrush(brush);
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painter->setRenderHint(QPainter::Antialiasing);
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QRectF thumb(0, 0, 11, 11);
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thumb.moveCenter(thumbGeometry().center());
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painter->drawEllipse(thumb);
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painter->restore();
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#ifdef DEBUG_LAYOUT
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painter->drawRect(thumbGeometry());
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if (hoverThumb) {
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painter->save();
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painter->setPen(Qt::red);
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painter->drawRect(thumbGeometry());
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painter->restore();
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}
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#endif
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}
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int valueFromPosition(const QPoint &pos) const
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{
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Q_Q(const Slider);
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int position = Qt::Horizontal == q->orientation() ? pos.x() : pos.y();
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int span = Qt::Horizontal == q->orientation()
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? q->rect().width() - THUMB_OUTER_SIZE
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: q->rect().height() - THUMB_OUTER_SIZE;
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return Style::sliderValueFromPosition(
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q->minimum(),
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q->maximum(),
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position - THUMB_OUTER_SIZE/2,
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span,
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false);
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}
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Slider *const q_ptr;
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bool hoverTrack;
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bool hoverThumb;
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bool step;
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int stepTo;
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};
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#endif // SLIDER_P_H
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