reimplemented pointer default functionality
This commit is contained in:
itsmattkc
@@ -0,0 +1,256 @@
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/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2019 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 "widget/timelinewidget/timelinewidget.h"
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#include <QMimeData>
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#include <QToolTip>
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#include "config/config.h"
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#include "common/qtversionabstraction.h"
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#include "core.h"
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#include "node/distort/transform/transform.h"
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#include "node/color/opacity/opacity.h"
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#include "node/input/media/media.h"
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TrackType TrackTypeFromStreamType(Stream::Type stream_type)
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{
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switch (stream_type) {
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case Stream::kVideo:
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case Stream::kImage:
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return kTrackTypeVideo;
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case Stream::kAudio:
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return kTrackTypeAudio;
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case Stream::kSubtitle:
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return kTrackTypeSubtitle;
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case Stream::kUnknown:
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case Stream::kData:
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case Stream::kAttachment:
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break;
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}
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return kTrackTypeNone;
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}
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TimelineWidget::ImportTool::ImportTool(TimelineWidget *parent) :
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Tool(parent)
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{
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// Calculate width used for importing to give ghosts a slight lead-in so the ghosts aren't right on the cursor
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QFontMetrics fm = parent->fontMetrics();
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import_pre_buffer_ = QFontMetricsWidth(&fm, "HHHHHHHH");
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}
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void TimelineWidget::ImportTool::DragEnter(TimelineViewMouseEvent *event)
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{
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QStringList mime_formats = event->GetMimeData()->formats();
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// Listen for MIME data from a ProjectViewModel
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if (mime_formats.contains("application/x-oliveprojectitemdata")) {
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// FIXME: Implement audio insertion
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// Data is drag/drop data from a ProjectViewModel
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QByteArray model_data = event->GetMimeData()->data("application/x-oliveprojectitemdata");
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// Use QDataStream to deserialize the data
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QDataStream stream(&model_data, QIODevice::ReadOnly);
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// Variables to deserialize into
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quintptr item_ptr;
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int r;
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// Set drag start position
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drag_start_ = event->GetCoordinates();
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// Set ghosts to start where the cursor entered
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rational ghost_start = drag_start_.GetFrame() - parent()->SceneToTime(import_pre_buffer_);
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snap_points_.clear();
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while (!stream.atEnd()) {
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stream >> r >> item_ptr;
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// Get Item object
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Item* item = reinterpret_cast<Item*>(item_ptr);
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// Check if Item is Footage
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if (item->type() == Item::kFootage) {
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// If the Item is Footage, we can create a Ghost from it
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Footage* footage = static_cast<Footage*>(item);
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// Each stream is offset by one track per track "type", we keep track of them in this vector
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QVector<int> track_offsets(kTrackTypeCount);
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track_offsets.fill(drag_start_.GetTrack().index());
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rational footage_duration;
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// Loop through all streams in footage
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foreach (StreamPtr stream, footage->streams()) {
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TrackType track_type = TrackTypeFromStreamType(stream->type());
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// Check if this stream has a compatible TrackList
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if (track_type == kTrackTypeNone) {
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continue;
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}
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TimelineViewGhostItem* ghost = new TimelineViewGhostItem();
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if (stream->type() == Stream::kImage) {
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// Stream is essentially length-less - use config's default image length
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footage_duration = Config::Current()["DefaultStillLength"].value<rational>();
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} else {
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// Use duration from file
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footage_duration = rational(stream->timebase().numerator() * stream->duration(),
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stream->timebase().denominator());
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}
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ghost->SetIn(ghost_start);
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ghost->SetOut(ghost_start + footage_duration);
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ghost->SetTrack(TrackReference(track_type, track_offsets.at(track_type)));
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// Increment track count for this track type
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track_offsets[track_type]++;
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snap_points_.append(ghost->In());
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snap_points_.append(ghost->Out());
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ghost->setData(TimelineViewGhostItem::kAttachedFootage, QVariant::fromValue(stream));
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ghost->SetMode(olive::timeline::kMove);
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parent()->AddGhost(ghost);
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}
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// Stack each ghost one after the other
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ghost_start += footage_duration;
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}
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}
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event->accept();
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} else {
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// FIXME: Implement dropping from file
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event->ignore();
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}
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}
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void TimelineWidget::ImportTool::DragMove(TimelineViewMouseEvent *event)
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{
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if (parent()->HasGhosts()) {
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rational time_movement = event->GetCoordinates().GetFrame() - drag_start_.GetFrame();
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int track_movement = event->GetCoordinates().GetTrack().index() - drag_start_.GetTrack().index();
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// If snapping is enabled, check for snap points
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if (olive::core.snapping()) {
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SnapPoint(snap_points_, &time_movement);
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}
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time_movement = ValidateFrameMovement(time_movement, parent()->ghost_items_);
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track_movement = ValidateTrackMovement(track_movement, parent()->ghost_items_);
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rational earliest_ghost = RATIONAL_MAX;
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// Move ghosts to the mouse cursor
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foreach (TimelineViewGhostItem* ghost, parent()->ghost_items_) {
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ghost->SetInAdjustment(time_movement);
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ghost->SetOutAdjustment(time_movement);
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ghost->SetTrackAdjustment(track_movement);
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TrackReference adjusted_track = ghost->GetAdjustedTrack();
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ghost->SetYCoords(parent()->GetTrackY(adjusted_track), parent()->GetTrackHeight(adjusted_track));
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earliest_ghost = qMin(earliest_ghost, ghost->GetAdjustedIn());
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}
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// Generate tooltip (showing earliest in point of imported clip)
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int64_t earliest_timestamp = olive::time_to_timestamp(earliest_ghost, parent()->timebase());
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QString tooltip_text = olive::timestamp_to_timecode(earliest_timestamp,
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parent()->timebase(),
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olive::CurrentTimecodeDisplay());
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QToolTip::showText(QCursor::pos(),
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tooltip_text,
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parent());
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event->accept();
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} else {
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event->ignore();
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}
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}
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void TimelineWidget::ImportTool::DragLeave(QDragLeaveEvent* event)
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{
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if (parent()->HasGhosts()) {
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parent()->ClearGhosts();
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event->accept();
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} else {
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event->ignore();
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}
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}
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void TimelineWidget::ImportTool::DragDrop(TimelineViewMouseEvent *event)
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{
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if (parent()->HasGhosts()) {
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// We use QObject as the parent for the nodes we create. If there is no TimelineOutput node, this object going out
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// of scope will delete the nodes. If there is, they'll become parents of the NodeGraph instead
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QObject node_memory_manager;
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QUndoCommand* command = new QUndoCommand();
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foreach (TimelineViewGhostItem* ghost, parent()->ghost_items_) {
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ClipBlock* clip = new ClipBlock();
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MediaInput* media = new MediaInput();
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TransformDistort* transform = new TransformDistort();
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OpacityNode* opacity = new OpacityNode();
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// Set parents to node_memory_manager in case no TimelineOutput receives this signal
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clip->setParent(&node_memory_manager);
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media->setParent(&node_memory_manager);
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transform->setParent(&node_memory_manager);
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opacity->setParent(&node_memory_manager);
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clip->set_length(ghost->Length());
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StreamPtr footage_stream = ghost->data(TimelineViewGhostItem::kAttachedFootage).value<StreamPtr>();
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media->SetFootage(footage_stream);
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clip->set_block_name(footage_stream->footage()->name());
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NodeParam::ConnectEdge(opacity->texture_output(), clip->texture_input());
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NodeParam::ConnectEdge(media->texture_output(), opacity->texture_input());
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NodeParam::ConnectEdge(transform->matrix_output(), media->matrix_input());
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if (event->GetModifiers() & Qt::ControlModifier) {
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//emit parent()->RequestInsertBlockAtTime(clip, ghost->GetAdjustedIn());
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} else {
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new TrackPlaceBlockCommand(parent()->timeline_node_->track_list(ghost->Track().type()),
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ghost->Track().index(),
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clip,
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ghost->GetAdjustedIn(),
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command);
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}
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}
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olive::undo_stack.pushIfHasChildren(command);
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parent()->ClearGhosts();
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event->accept();
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} else {
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event->ignore();
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}
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}
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