X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fmarginwidget.cpp;h=fcbb31bf0174bb1944286005b11d0d978d715126;hp=8716439e6f74e294505489f148e8d3e31c7af7f1;hb=40aca27ed83559f7f79873e353f64d2c36a18fce;hpb=2155b66bed9f0802caec0b1e86f7f03d317a3e83

diff --git a/pv/view/marginwidget.cpp b/pv/view/marginwidget.cpp
index 8716439e..fcbb31bf 100644
--- a/pv/view/marginwidget.cpp
+++ b/pv/view/marginwidget.cpp
@@ -18,6 +18,7 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
+#include <QApplication>
 #include <QMenu>
 #include <QMouseEvent>
 
@@ -33,8 +34,7 @@ namespace pv {
 namespace view {
 
 MarginWidget::MarginWidget(View &parent) :
-	QWidget(&parent),
-	view_(parent),
+	ViewWidget(parent),
 	dragging_(false)
 {
 	setAttribute(Qt::WA_NoSystemBackground, true);
@@ -49,6 +49,110 @@ void MarginWidget::show_popup(const shared_ptr<ViewItem> &item)
 		p->show();
 }
 
+void MarginWidget::mouse_left_press_event(QMouseEvent *event)
+{
+	(void)event;
+
+	const bool ctrl_pressed =
+		QApplication::keyboardModifiers() & Qt::ControlModifier;
+
+	// Clear selection if control is not pressed and this item is unselected
+	if ((!mouse_down_item_ || !mouse_down_item_->selected()) &&
+		!ctrl_pressed)
+		clear_selection();
+
+	// Set the signal selection state if the item has been clicked
+	if (mouse_down_item_) {
+		if (ctrl_pressed)
+			mouse_down_item_->select(!mouse_down_item_->selected());
+		else
+			mouse_down_item_->select(true);
+	}
+
+	// Save the offsets of any signals which will be dragged
+	const auto items = this->items();
+	for (auto &i : items)
+		if (i->selected())
+			i->drag();
+
+	selection_changed();
+	update();
+}
+
+void MarginWidget::mouse_left_release_event(QMouseEvent *event)
+{
+	assert(event);
+
+	auto items = this->items();
+	const bool ctrl_pressed =
+		QApplication::keyboardModifiers() & Qt::ControlModifier;
+
+	// Unselect everything if control is not pressed
+	const shared_ptr<ViewItem> mouse_over =
+		get_mouse_over_item(event->pos());
+
+	for (auto &i : items)
+		i->drag_release();
+
+	if (dragging_)
+		view_.restack_all_row_items();
+	else
+	{
+		if (!ctrl_pressed) {
+			for (shared_ptr<ViewItem> i : items)
+				if (mouse_down_item_ != i)
+					i->select(false);
+
+			if (mouse_down_item_)
+				show_popup(mouse_down_item_);
+		}
+	}
+
+	dragging_ = false;
+}
+
+void MarginWidget::mousePressEvent(QMouseEvent *event)
+{
+	assert(event);
+
+	mouse_down_point_ = event->pos();
+	mouse_down_item_ = get_mouse_over_item(event->pos());
+
+	if (event->button() & Qt::LeftButton)
+		mouse_left_press_event(event);
+}
+
+void MarginWidget::mouseReleaseEvent(QMouseEvent *event)
+{
+	assert(event);
+	if (event->button() & Qt::LeftButton)
+		mouse_left_release_event(event);
+
+	mouse_down_item_ = nullptr;
+}
+
+void MarginWidget::mouseMoveEvent(QMouseEvent *event)
+{
+	assert(event);
+	mouse_point_ = event->pos();
+
+	if (!(event->buttons() & Qt::LeftButton))
+		return;
+
+	if ((event->pos() - mouse_down_point_).manhattanLength() <
+		QApplication::startDragDistance())
+		return;
+
+	if (!accept_drag())
+		return;
+
+	// Do the drag
+	dragging_ = true;
+	drag_items(event->pos() - mouse_down_point_);
+
+	update();
+}
+
 void MarginWidget::leaveEvent(QEvent*)
 {
 	mouse_point_ = QPoint(-1, -1);
@@ -66,8 +170,25 @@ void MarginWidget::contextMenuEvent(QContextMenuEvent *event)
 		menu->exec(event->globalPos());
 }
 
+void MarginWidget::keyPressEvent(QKeyEvent *e)
+{
+	assert(e);
+
+	if (e->key() == Qt::Key_Delete)
+	{
+		const auto items = this->items();
+		for (auto &i : items)
+			if (i->selected())
+				i->delete_pressed();
+	}
+}
+
 void MarginWidget::clear_selection()
 {
+	const auto items = this->items();
+	for (auto &i : items)
+		i->select(false);
+	update();
 }
 
 } // namespace view