base pointer movement in timeline

2019-08-21 15:10:55 +10:00
parent 78d96ecd28
commit f03cc8fe07
14 changed files with 166 additions and 62 deletions
@@ -0,0 +1,70 @@
+/***
+
+  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 "widget/timelineview/timelineview.h"
+
+TimelineView::Tool::Tool(TimelineView *parent) :
+  dragging_(false),
+  parent_(parent)
+{
+}
+
+TimelineView::Tool::~Tool(){}
+
+void TimelineView::Tool::MousePress(QMouseEvent *){}
+
+void TimelineView::Tool::MouseMove(QMouseEvent *){}
+
+void TimelineView::Tool::MouseRelease(QMouseEvent *){}
+
+void TimelineView::Tool::DragEnter(QDragEnterEvent *){}
+
+void TimelineView::Tool::DragMove(QDragMoveEvent *){}
+
+void TimelineView::Tool::DragLeave(QDragLeaveEvent *){}
+
+void TimelineView::Tool::DragDrop(QDropEvent *){}
+
+TimelineView *TimelineView::Tool::parent()
+{
+  return parent_;
+}
+
+QPointF TimelineView::Tool::GetScenePos(const QPoint &screen_pos)
+{
+  return parent()->mapToScene(screen_pos);
+}
+
+QGraphicsItem *TimelineView::Tool::GetItemAtScenePos(const QPointF &scene_pos)
+{
+  return parent()->scene_.itemAt(scene_pos, parent()->transform());
+}
+
+rational TimelineView::Tool::ValidateMovement(rational movement, const QVector<TimelineViewGhostItem *> ghosts)
+{
+  foreach (TimelineViewGhostItem* ghost, ghosts) {
+    rational validator = ghost->In() + movement;
+    if (validator < 0) {
+      movement = rational(0) - ghost->In();
+    }
+  }
+
+  return movement;
+}