X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=pv%2Fview%2Ftracetreeitem.cpp;fp=pv%2Fview%2Ftracetreeitem.cpp;h=1e09908b350c0aff7ba7547791c63e277ef337ce;hb=af503b104d890a357c736c678bb00296d889c090;hp=0000000000000000000000000000000000000000;hpb=dbf74f26f6bd9fd5277f090fea8e4f5506c19911;p=pulseview.git

diff --git a/pv/view/tracetreeitem.cpp b/pv/view/tracetreeitem.cpp
new file mode 100644
index 0000000..1e09908
--- /dev/null
+++ b/pv/view/tracetreeitem.cpp
@@ -0,0 +1,139 @@
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include <assert.h>
+
+#include "view.hpp"
+
+#include "tracetreeitem.hpp"
+
+namespace pv {
+namespace view {
+
+TraceTreeItem::TraceTreeItem() :
+	owner_(nullptr),
+	layout_v_offset_(0),
+	visual_v_offset_(0),
+	v_offset_animation_(this, "visual_v_offset")
+{
+}
+
+int TraceTreeItem::layout_v_offset() const
+{
+	return layout_v_offset_;
+}
+
+void TraceTreeItem::set_layout_v_offset(int v_offset)
+{
+	if (layout_v_offset_ == v_offset)
+		return;
+
+	layout_v_offset_ = v_offset;
+
+	if (owner_)
+		owner_->extents_changed(false, true);
+}
+
+int TraceTreeItem::visual_v_offset() const
+{
+	return visual_v_offset_;
+}
+
+void TraceTreeItem::set_visual_v_offset(int v_offset)
+{
+	visual_v_offset_ = v_offset;
+
+	if (owner_)
+		owner_->row_item_appearance_changed(true, true);
+}
+
+void TraceTreeItem::force_to_v_offset(int v_offset)
+{
+	v_offset_animation_.stop();
+	layout_v_offset_ = visual_v_offset_ = v_offset;
+
+	if (owner_) {
+		owner_->row_item_appearance_changed(true, true);
+		owner_->extents_changed(false, true);
+	}
+}
+
+void TraceTreeItem::animate_to_layout_v_offset()
+{
+	if (visual_v_offset_ == layout_v_offset_ ||
+		(v_offset_animation_.endValue() == layout_v_offset_ &&
+		v_offset_animation_.state() == QAbstractAnimation::Running))
+		return;
+
+	v_offset_animation_.setDuration(100);
+	v_offset_animation_.setStartValue(visual_v_offset_);
+	v_offset_animation_.setEndValue(layout_v_offset_);
+	v_offset_animation_.setEasingCurve(QEasingCurve::OutQuad);
+	v_offset_animation_.start();
+}
+
+TraceTreeItemOwner* TraceTreeItem::owner() const
+{
+	return owner_;
+}
+
+void TraceTreeItem::set_owner(TraceTreeItemOwner *owner)
+{
+	assert(owner_ || owner);
+	v_offset_animation_.stop();
+
+	if (owner_) {
+		const int owner_offset = owner_->owner_visual_v_offset();
+		layout_v_offset_ += owner_offset;
+		visual_v_offset_ += owner_offset;
+	}
+
+	owner_ = owner;
+
+	if (owner_) {
+		const int owner_offset = owner_->owner_visual_v_offset();
+		layout_v_offset_ -= owner_offset;
+		visual_v_offset_ -= owner_offset;
+	}
+}
+
+int TraceTreeItem::get_visual_y() const
+{
+	assert(owner_);
+	return visual_v_offset_ + owner_->owner_visual_v_offset();
+}
+
+void TraceTreeItem::drag_by(const QPoint &delta)
+{
+	force_to_v_offset(drag_point_.y() + delta.y() -
+		owner_->owner_visual_v_offset());
+}
+
+QPoint TraceTreeItem::point(const QRect &rect) const
+{
+	return QPoint(rect.right(), get_visual_y());
+}
+
+void TraceTreeItem::hover_point_changed()
+{
+}
+
+} // namespace view
+} // namespace pv