initial commit of hand merging, plus getting "ancient" waf script to work correctly

1 files changed, 313 insertions, 0 deletions

diff --git a/libs/canvas/item.cc b/libs/canvas/item.cc
new file mode 100644
index 0000000000..ef207c448f
--- /dev/null
+++ b/libs/canvas/item.cc
@@ -0,0 +1,313 @@
+#include "pbd/compose.h"
+#include "pbd/stacktrace.h"
+#include "pbd/xml++.h"
+#include "pbd/convert.h"
+
+#include "ardour/utils.h"
+
+#include "canvas/group.h"
+#include "canvas/item.h"
+#include "canvas/canvas.h"
+#include "canvas/debug.h"
+
+using namespace std;
+using namespace PBD;
+using namespace ArdourCanvas;
+
+Item::Item (Canvas* canvas)
+	: _canvas (canvas)
+	, _parent (0)
+{
+	init ();
+}
+
+Item::Item (Group* parent)
+	: _parent (parent)
+{
+	assert (parent);
+	_canvas = _parent->canvas ();
+	
+	init ();
+}
+
+Item::Item (Group* parent, Duple position)
+	: _parent (parent)
+	, _position (position)
+{
+	assert (parent);
+	_canvas = _parent->canvas ();
+	
+	init ();
+}
+
+void
+Item::init ()
+{
+	_visible = true;
+	_bounding_box_dirty = true;
+	_ignore_events = false;
+	
+	if (_parent) {
+		_parent->add (this);
+	}
+
+	DEBUG_TRACE (DEBUG::CanvasItems, string_compose ("new canvas item %1\n", this));
+}	
+
+Item::~Item ()
+{
+	_canvas->item_going_away (this, _bounding_box);
+	
+	if (_parent) {
+		_parent->remove (this);
+	}
+}
+
+Rect
+Item::item_to_parent (Rect const & r) const
+{
+	return r.translate (_position);
+}
+
+/** Set the position of this item in the parent's coordinates */
+void
+Item::set_position (Duple p)
+{
+	boost::optional<Rect> bbox = bounding_box ();
+	boost::optional<Rect> pre_change_parent_bounding_box;
+	if (bbox) {
+		pre_change_parent_bounding_box = item_to_parent (bbox.get());
+	}
+	
+	_position = p;
+
+	_canvas->item_moved (this, pre_change_parent_bounding_box);
+
+	if (_parent) {
+		_parent->child_changed ();
+	}
+}
+
+void
+Item::set_x_position (Coord x)
+{
+	set_position (Duple (x, _position.y));
+}
+
+void
+Item::set_y_position (Coord y)
+{
+	set_position (Duple (_position.x, y));
+}
+
+void
+Item::raise_to_top ()
+{
+	assert (_parent);
+	_parent->raise_child_to_top (this);
+}
+
+void
+Item::raise (int levels)
+{
+	assert (_parent);
+	_parent->raise_child (this, levels);
+}
+
+void
+Item::lower_to_bottom ()
+{
+	assert (_parent);
+	_parent->lower_child_to_bottom (this);
+}
+
+void
+Item::hide ()
+{
+	_visible = false;
+	_canvas->item_shown_or_hidden (this);
+}
+
+void
+Item::show ()
+{
+	_visible = true;
+	_canvas->item_shown_or_hidden (this);
+}
+
+Duple
+Item::item_to_parent (Duple const & d) const
+{
+	return d.translate (_position);
+}
+
+Duple
+Item::parent_to_item (Duple const & d) const
+{
+	return d.translate (- _position);
+}
+
+Rect
+Item::parent_to_item (Rect const & d) const
+{
+	return d.translate (- _position);
+}
+
+void
+Item::unparent ()
+{
+	_canvas = 0;
+	_parent = 0;
+}
+
+void
+Item::reparent (Group* new_parent)
+{
+	if (_parent) {
+		_parent->remove (this);
+	}
+
+	assert (new_parent);
+
+	_parent = new_parent;
+	_canvas = _parent->canvas ();
+	_parent->add (this);
+}
+
+void
+Item::grab_focus ()
+{
+	/* XXX */
+}
+
+/** @return Bounding box in this item's coordinates */
+boost::optional<Rect>
+Item::bounding_box () const
+{
+	if (_bounding_box_dirty) {
+		compute_bounding_box ();
+	}
+
+	assert (!_bounding_box_dirty);
+	return _bounding_box;
+}
+
+/* XXX may be called even if bbox is not changing ... bit grotty */
+void
+Item::begin_change ()
+{
+	_pre_change_bounding_box = bounding_box ();
+}
+
+void
+Item::end_change ()
+{
+	_canvas->item_changed (this, _pre_change_bounding_box);
+	
+	if (_parent) {
+		_parent->child_changed ();
+	}
+}
+
+void
+Item::move (Duple movement)
+{
+	set_position (position() + movement);
+}
+
+void
+Item::add_item_state (XMLNode* node) const
+{
+	node->add_property ("x-position", string_compose ("%1", _position.x));
+	node->add_property ("y-position", string_compose ("%1", _position.y));
+	node->add_property ("visible", _visible ? "yes" : "no");
+}
+
+void
+Item::set_item_state (XMLNode const * node)
+{
+	_position.x = atof (node->property("x-position")->value().c_str());
+	_position.y = atof (node->property("y-position")->value().c_str());
+	_visible = PBD::string_is_affirmative (node->property("visible")->value());
+}
+
+void
+Item::grab ()
+{
+	assert (_canvas);
+	_canvas->grab (this);
+}
+
+void
+Item::ungrab ()
+{
+	assert (_canvas);
+	_canvas->ungrab ();
+}
+
+void
+Item::set_data (string const & key, void* data)
+{
+	_data[key] = data;
+}
+
+void *
+Item::get_data (string const & key) const
+{
+	map<string, void*>::const_iterator i = _data.find (key);
+	if (i == _data.end ()) {
+		return 0;
+	}
+	
+	return i->second;
+}
+
+void
+Item::item_to_canvas (Coord& x, Coord& y) const
+{
+	Duple d (x, y);
+	Item const * i = this;
+	
+	while (i) {
+		d = i->item_to_parent (d);
+		i = i->_parent;
+	}
+		
+	x = d.x;
+	y = d.y;
+}
+
+void
+Item::canvas_to_item (Coord& x, Coord& y) const
+{
+	Duple d (x, y);
+	Item const * i = this;
+
+	while (i) {
+		d = i->parent_to_item (d);
+		i = i->_parent;
+	}
+
+	x = d.x;
+	y = d.y;
+}
+
+Rect
+Item::item_to_canvas (Rect const & area) const
+{
+	Rect r = area;
+	Item const * i = this;
+
+	while (i) {
+		r = i->item_to_parent (r);
+		i = i->parent ();
+	}
+
+	return r;
+}
+
+void
+Item::set_ignore_events (bool ignore)
+{
+	_ignore_events = ignore;
+}