129 lines
4.4 KiB
C++
129 lines
4.4 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2021 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "resizabletimelinescrollbar.h"
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#include <QPainter>
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#include <QStyle>
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#include <QStyleOptionSlider>
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#include <QtMath>
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namespace olive {
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ResizableTimelineScrollBar::ResizableTimelineScrollBar(QWidget* parent) :
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ResizableScrollBar(parent),
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points_(nullptr),
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scale_(1.0)
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{
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}
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ResizableTimelineScrollBar::ResizableTimelineScrollBar(Qt::Orientation orientation, QWidget* parent) :
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ResizableScrollBar(orientation, parent),
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points_(nullptr),
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scale_(1.0)
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{
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}
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void ResizableTimelineScrollBar::ConnectTimelinePoints(TimelinePoints *points)
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{
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if (points_) {
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disconnect(points_->workarea(), &TimelineWorkArea::RangeChanged, this, static_cast<void (ResizableTimelineScrollBar::*)()>(&ResizableTimelineScrollBar::update));
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disconnect(points_->workarea(), &TimelineWorkArea::EnabledChanged, this, static_cast<void (ResizableTimelineScrollBar::*)()>(&ResizableTimelineScrollBar::update));
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disconnect(points_->markers(), &TimelineMarkerList::MarkerAdded, this, static_cast<void (ResizableTimelineScrollBar::*)()>(&ResizableTimelineScrollBar::update));
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disconnect(points_->markers(), &TimelineMarkerList::MarkerRemoved, this, static_cast<void (ResizableTimelineScrollBar::*)()>(&ResizableTimelineScrollBar::update));
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}
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points_ = points;
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if (points_) {
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connect(points_->workarea(), &TimelineWorkArea::RangeChanged, this, static_cast<void (ResizableTimelineScrollBar::*)()>(&ResizableTimelineScrollBar::update));
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connect(points_->workarea(), &TimelineWorkArea::EnabledChanged, this, static_cast<void (ResizableTimelineScrollBar::*)()>(&ResizableTimelineScrollBar::update));
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connect(points_->markers(), &TimelineMarkerList::MarkerAdded, this, static_cast<void (ResizableTimelineScrollBar::*)()>(&ResizableTimelineScrollBar::update));
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connect(points_->markers(), &TimelineMarkerList::MarkerRemoved, this, static_cast<void (ResizableTimelineScrollBar::*)()>(&ResizableTimelineScrollBar::update));
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}
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update();
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}
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void ResizableTimelineScrollBar::SetScale(double d)
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{
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scale_ = d;
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update();
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}
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void ResizableTimelineScrollBar::paintEvent(QPaintEvent *event)
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{
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ResizableScrollBar::paintEvent(event);
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if (points_
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&& !timebase().isNull()
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&& (points_->workarea()->enabled() || !points_->markers()->list().isEmpty())) {
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QStyleOptionSlider opt;
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initStyleOption(&opt);
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QRect gr = style()->subControlRect(QStyle::CC_ScrollBar, &opt,
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QStyle::SC_ScrollBarGroove, this);
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double ratio = scale_ * double(gr.width()) / double(this->maximum() + gr.width());
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QPainter p(this);
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if (points_->workarea()->enabled()) {
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QColor workarea_color(this->palette().highlight().color());
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workarea_color.setAlpha(128);
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qint64 in = qMax(qint64(0), qRound64(ratio * TimeToScene(points_->workarea()->in())));
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qint64 out;
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if (points_->workarea()->out() == RATIONAL_MAX) {
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out = gr.width();
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} else {
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out = qMin(qint64(gr.width()), qRound64(ratio * TimeToScene(points_->workarea()->out())));
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}
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qint64 length = qMax(qint64(1), out-in);
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p.fillRect(gr.x() + in,
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0,
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length,
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height(),
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workarea_color);
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}
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if (!points_->markers()->list().isEmpty()) {
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QColor marker_color(0, 255, 0, 128);
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foreach (TimelineMarker* marker, points_->markers()->list()) {
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int64_t in = qRound64(ratio * TimeToScene(marker->time().in()));
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int64_t out = qRound64(ratio * TimeToScene(marker->time().out()));
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int64_t length = qMax(int64_t(1), out-in);
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p.fillRect(gr.x() + in,
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0,
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length,
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height(),
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marker_color);
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}
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}
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}
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}
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}
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