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/***
Olive - Non-Linear Video Editor
Copyright (C) 2019 Olive Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
#include "playbackcontrols.h"
#include <QDebug>
#include <QEvent>
#include <QHBoxLayout>
#include "core.h"
#include "config/config.h"
#include "ui/icons/icons.h"
OLIVE_NAMESPACE_ENTER
PlaybackControls::PlaybackControls(QWidget *parent) :
QWidget(parent),
time_base_(0)
{
// Create lower controls
QHBoxLayout* lower_control_layout = new QHBoxLayout(this);
lower_control_layout->setSpacing(0);
lower_control_layout->setMargin(0);
QSizePolicy lower_container_size_policy(QSizePolicy::Minimum, QSizePolicy::Expanding);
lower_container_size_policy.setHorizontalStretch(1);
// In the lower-left, we create a current timecode label wrapped in a QWidget for fixed sizing
lower_left_container_ = new QWidget();
lower_left_container_->setVisible(false);
lower_left_container_->setSizePolicy(lower_container_size_policy);
lower_control_layout->addWidget(lower_left_container_);
QHBoxLayout* lower_left_layout = new QHBoxLayout(lower_left_container_);
lower_left_layout->setSpacing(0);
lower_left_layout->setMargin(0);
cur_tc_lbl_ = new TimeSlider();
connect(cur_tc_lbl_, &TimeSlider::ValueChanged, this, &PlaybackControls::TimeChanged);
lower_left_layout->addWidget(cur_tc_lbl_);
lower_left_layout->addStretch();
// This is only here
QWidget* blank_widget = new QWidget();
//new QHBoxLayout(blank_widget);
blank_widget->setSizePolicy(lower_container_size_policy);
lower_control_layout->addWidget(blank_widget);
// In the lower-middle, we create playback control buttons
QWidget* lower_middle_container = new QWidget();
lower_middle_container->setSizePolicy(lower_container_size_policy);
lower_control_layout->addWidget(lower_middle_container);
QHBoxLayout* lower_middle_layout = new QHBoxLayout(lower_middle_container);
lower_middle_layout->setSpacing(0);
lower_middle_layout->setMargin(0);
// Go To Start Button
go_to_start_btn_ = new QPushButton();
lower_middle_layout->addWidget(go_to_start_btn_);
connect(go_to_start_btn_, &QPushButton::clicked, this, &PlaybackControls::BeginClicked);
// Prev Frame Button
prev_frame_btn_ = new QPushButton();
lower_middle_layout->addWidget(prev_frame_btn_);
connect(prev_frame_btn_, &QPushButton::clicked, this, &PlaybackControls::PrevFrameClicked);
// Play/Pause Button
playpause_stack_ = new QStackedWidget();
lower_middle_layout->addWidget(playpause_stack_);
play_btn_ = new QPushButton();
playpause_stack_->addWidget(play_btn_);
connect(play_btn_, &QPushButton::clicked, this, &PlaybackControls::PlayClicked);
pause_btn_ = new QPushButton();
playpause_stack_->addWidget(pause_btn_);
connect(pause_btn_, &QPushButton::clicked, this, &PlaybackControls::PauseClicked);
// Default to showing play button
playpause_stack_->setCurrentWidget(play_btn_);
playpause_stack_->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Expanding);
// Next Frame Button
next_frame_btn_ = new QPushButton();
lower_middle_layout->addWidget(next_frame_btn_);
connect(next_frame_btn_, &QPushButton::clicked, this, &PlaybackControls::NextFrameClicked);
// Go To End Button
go_to_end_btn_ = new QPushButton();
lower_middle_layout->addWidget(go_to_end_btn_);
connect(go_to_end_btn_, &QPushButton::clicked, this, &PlaybackControls::EndClicked);
QWidget* av_btn_widget = new QWidget();
av_btn_widget->setSizePolicy(lower_container_size_policy);
QHBoxLayout* av_btn_layout = new QHBoxLayout(av_btn_widget);
av_btn_layout->setSpacing(0);
av_btn_layout->setMargin(0);
video_drag_btn_ = new DragButton();
connect(video_drag_btn_, &QPushButton::clicked, this, &PlaybackControls::VideoClicked);
connect(video_drag_btn_, &DragButton::MousePressed, this, &PlaybackControls::VideoPressed);
av_btn_layout->addWidget(video_drag_btn_);
audio_drag_btn_ = new DragButton();
connect(audio_drag_btn_, &QPushButton::clicked, this, &PlaybackControls::AudioClicked);
connect(audio_drag_btn_, &DragButton::MousePressed, this, &PlaybackControls::AudioPressed);
av_btn_layout->addWidget(audio_drag_btn_);
lower_control_layout->addWidget(av_btn_widget);
// The lower-right, we create another timecode label, this time to show the end timecode
lower_right_container_ = new QWidget();
lower_right_container_->setVisible(false);
lower_right_container_->setSizePolicy(lower_container_size_policy);
lower_control_layout->addWidget(lower_right_container_);
QHBoxLayout* lower_right_layout = new QHBoxLayout(lower_right_container_);
lower_right_layout->setSpacing(0);
lower_right_layout->setMargin(0);
lower_right_layout->addStretch();
end_tc_lbl_ = new QLabel();
lower_right_layout->addWidget(end_tc_lbl_);
UpdateIcons();
SetTimebase(0);
SetAudioVideoDragButtonsVisible(false);
connect(Core::instance(), &Core::TimecodeDisplayChanged, this, &PlaybackControls::TimecodeChanged);
}
void PlaybackControls::SetTimecodeEnabled(bool enabled)
{
lower_left_container_->setVisible(enabled);
lower_right_container_->setVisible(enabled);
}
void PlaybackControls::SetTimebase(const rational &r)
{
time_base_ = r;
cur_tc_lbl_->SetTimebase(r);
cur_tc_lbl_->setEnabled(!r.isNull());
}
void PlaybackControls::SetAudioVideoDragButtonsVisible(bool e)
{
video_drag_btn_->setVisible(e);
audio_drag_btn_->setVisible(e);
}
void PlaybackControls::SetTime(const int64_t &r)
{
cur_tc_lbl_->SetValue(r);
}
void PlaybackControls::SetEndTime(const int64_t &r)
{
if (time_base_.isNull()) {
return;
}
end_time_ = r;
end_tc_lbl_->setText(Timecode::timestamp_to_timecode(end_time_,
time_base_,
Core::instance()->GetTimecodeDisplay()));
}
void PlaybackControls::ShowPauseButton()
{
// Play was clicked, toggle to pause
playpause_stack_->setCurrentWidget(pause_btn_);
}
void PlaybackControls::ShowPlayButton()
{
playpause_stack_->setCurrentWidget(play_btn_);
}
void PlaybackControls::changeEvent(QEvent *e)
{
QWidget::changeEvent(e);
if (e->type() == QEvent::StyleChange) {
UpdateIcons();
}
}
void PlaybackControls::UpdateIcons()
{
go_to_start_btn_->setIcon(icon::GoToStart);
prev_frame_btn_->setIcon(icon::PrevFrame);
play_btn_->setIcon(icon::Play);
pause_btn_->setIcon(icon::Pause);
next_frame_btn_->setIcon(icon::NextFrame);
go_to_end_btn_->setIcon(icon::GoToEnd);
video_drag_btn_->setIcon(icon::Video);
audio_drag_btn_->setIcon(icon::Audio);
}
void PlaybackControls::TimecodeChanged()
{
// Update end time
SetEndTime(end_time_);
}
OLIVE_NAMESPACE_EXIT
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