#include "canvas/canvas.h"
#include "canvas/debug.h"
+#include "canvas/line.h"
using namespace std;
using namespace ArdourCanvas;
{
#ifdef CANVAS_DEBUG
if (DEBUG_ENABLED(PBD::DEBUG::CanvasRender)) {
- cerr << "RENDER: " << area << endl;
+ cerr << this << " RENDER: " << area << endl;
//cerr << "CANVAS @ " << this << endl;
//dump (cerr);
//cerr << "-------------------------\n";
boost::optional<Rect> draw = root_bbox->intersection (area);
if (draw) {
-
- // context->rectangle (area.x0, area.y0, area.x1 - area.x0, area.y1 - area.y0);
- // context->set_source_rgba (1.0, 0, 0, 1.0);
- // context->fill ();
-
+
/* there's a common area between the root and the requested
area, so render it.
*/
_root.render (*draw, context);
+
+ // This outlines the rect being rendered, after it has been drawn.
+ // context->rectangle (draw->x0, draw->y0, draw->x1 - draw->x0, draw->y1 - draw->y0);
+ // context->set_source_rgba (1.0, 0, 0, 1.0);
+ // context->stroke ();
+
}
}
Canvas::canvas_to_window (Duple const & d) const
{
Duple wd = d.translate (Duple (-_scroll_offset_x, -_scroll_offset_y));
+
+ /* Note that this intentionally always returns integer coordinates */
+
wd.x = round (wd.x);
wd.y = round (wd.y);
+
return wd;
}
Canvas::canvas_to_window (Rect const & r) const
{
Rect wr = r.translate (Duple (-_scroll_offset_x, -_scroll_offset_y));
- wr.x0 = floor (wr.x0);
- wr.x1 = ceil (wr.x1);
- wr.y0 = floor (wr.y0);
- wr.y1 = ceil (wr.y1);
+
+ /* Note that this intentionally always returns integer coordinates */
+
+ wr.x0 = round (wr.x0);
+ wr.x1 = round (wr.x1);
+ wr.y0 = round (wr.y0);
+ wr.y1 = round (wr.y1);
+
return wr;
}
Canvas::queue_draw_item_area (Item* item, Rect area)
{
ArdourCanvas::Rect canvas_area = item->item_to_canvas (area);
- // cerr << "CANVAS " << this << " for " << item->whatami() << ' ' << item->name << " invalidate " << area << " TRANSLATE AS " << canvas_area << endl;
+ // cerr << "CANVAS " << this << " for " << item << ' ' << item->whatami() << ' ' << item->name << " invalidate " << area << " TRANSLATE AS " << canvas_area << " window = " << canvas_to_window (canvas_area) << std::endl;
request_redraw (canvas_area);
}
vector<Item const *> items;
_root.add_items_at_point (point, items);
+ DEBUG_TRACE (PBD::DEBUG::CanvasEnterLeave, string_compose ("%1 covers %2 items\n", point, items.size()));
+
+#ifndef NDEBUG
+ if (DEBUG_ENABLED(PBD::DEBUG::CanvasEnterLeave)) {
+ for (vector<Item const*>::const_iterator it = items.begin(); it != items.end(); ++it) {
+#ifdef CANVAS_DEBUG
+ std::cerr << "\tItem " << (*it)->whatami() << '/' << (*it)->name << std::endl;
+#else
+ std::cerr << "\tItem " << (*it)->whatami() << std::endl;
+#endif
+ }
+ }
+#endif
+
/* put all items at point that are event-sensitive and visible and NOT
groups into within_items. Note that items is sorted from bottom to
top, but we're going to reverse that for within_items so that its
Item const * new_item = *i;
- /* We ignore groups and we ignore items that ignore events */
+ /* We ignore invisible items, groups and items that ignore events */
- if (new_item->ignore_events() || dynamic_cast<Group const *>(new_item) != 0) {
+ if (!new_item->visible() || new_item->ignore_events() || dynamic_cast<Group const *>(new_item) != 0) {
continue;
}
if (within_items.empty()) {
/* no items at point, just send leave event below */
+ _new_current_item = 0;
} else {
+
if (within_items.front() == _current_item) {
/* uppermost item at point is already _current_item */
return;
}
-
+
_new_current_item = const_cast<Item*> (within_items.front());
}
- deliver_enter_leave (point, state);
+ if (_new_current_item != _current_item) {
+ deliver_enter_leave (point, state);
+ }
}
void
} else if (_current_item->is_descendant_of (*_new_current_item)) {
/* move from descendant to ancestor (X: "_current_item is an
- * inferior of _new_current_item")
+ * inferior ("child") of _new_current_item")
*
* Deliver "virtual" leave notifications to all items in the
* heirarchy between current and new_current.
} else if (_new_current_item->is_descendant_of (*_current_item)) {
/* move from ancestor to descendant (X: "_new_current_item is
- * an inferior of _current_item")
+ * an inferior ("child") of _current_item")
*
* Deliver "virtual" enter notifications to all items in the
* heirarchy between current and new_current.
if (_current_item && !_current_item->ignore_events ()) {
leave_event.detail = leave_detail;
_current_item->Event ((GdkEvent*)&leave_event);
+ DEBUG_TRACE (PBD::DEBUG::CanvasEnterLeave, string_compose ("LEAVE %1/%2\n", _current_item->whatami(), _current_item->name));
}
leave_event.detail = GDK_NOTIFY_VIRTUAL;
for (vector<Item*>::iterator it = items_to_leave_virtual.begin(); it != items_to_leave_virtual.end(); ++it) {
if (!(*it)->ignore_events()) {
+ DEBUG_TRACE (PBD::DEBUG::CanvasEnterLeave, string_compose ("leave %1/%2\n", (*it)->whatami(), (*it)->name));
(*it)->Event ((GdkEvent*)&leave_event);
}
}
for (vector<Item*>::iterator it = items_to_enter_virtual.begin(); it != items_to_enter_virtual.end(); ++it) {
if (!(*it)->ignore_events()) {
+ DEBUG_TRACE (PBD::DEBUG::CanvasEnterLeave, string_compose ("enter %1/%2\n", (*it)->whatami(), (*it)->name));
(*it)->Event ((GdkEvent*)&enter_event);
+ // std::cerr << "enter " << (*it)->whatami() << '/' << (*it)->name << std::endl;
}
}
if (_new_current_item && !_new_current_item->ignore_events()) {
enter_event.detail = enter_detail;
+ DEBUG_TRACE (PBD::DEBUG::CanvasEnterLeave, string_compose ("ENTER %1/%2\n", _new_current_item->whatami(), _new_current_item->name));
_new_current_item->Event ((GdkEvent*)&enter_event);
}
{
/* Point in in canvas coordinate space */
+ const Item* event_item;
+
if (_grabbed_item) {
/* we have a grabbed item, so everything gets sent there */
DEBUG_TRACE (PBD::DEBUG::CanvasEvents, string_compose ("%1 %2 (%3) was grabbed, send event there\n",
_grabbed_item, _grabbed_item->whatami(), _grabbed_item->name));
- return _grabbed_item->Event (event);
+ event_item = _grabbed_item;
+ } else {
+ event_item = _current_item;
}
- if (!_current_item) {
+ if (!event_item) {
return false;
}
/* run through the items from child to parent, until one claims the event */
- Item* item = const_cast<Item*> (_current_item);
+ Item* item = const_cast<Item*> (event_item);
while (item) {
return true;
}
- DEBUG_TRACE (PBD::DEBUG::CanvasEvents, string_compose ("canvas event left unhandled by %1 %2\n", item->whatami(), item->name.empty() ? "[unknown]" : item->name));
+ DEBUG_TRACE (PBD::DEBUG::CanvasEvents, string_compose ("canvas event %3 left unhandled by %1 %2\n", item->whatami(), item->name.empty() ? "[unknown]" : item->name, event_type_string (event->type)));
if ((item = parent) == 0) {
break;
queue_draw_item_area (item, bounding_box.get ());
}
- /* no need to send a leave event to this item, since it is going away
- */
-
if (_new_current_item == item) {
_new_current_item = 0;
}
- if (_current_item == item) {
- _current_item = 0;
- }
-
if (_grabbed_item == item) {
_grabbed_item = 0;
}
_focused_item = 0;
}
- pick_current_item (0); // no mouse state
+ if (_current_item == item) {
+ /* no need to send a leave event to this item, since it is going away
+ */
+ _current_item = 0;
+ pick_current_item (0); // no mouse state
+ }
}
bool
GtkCanvas::on_expose_event (GdkEventExpose* ev)
{
- Cairo::RefPtr<Cairo::Context> c = get_window()->create_cairo_context ();
-
- render (Rect (ev->area.x, ev->area.y, ev->area.x + ev->area.width, ev->area.y + ev->area.height), c);
-
+ Cairo::RefPtr<Cairo::Context> cairo_context = get_window()->create_cairo_context ();
+ render (Rect (ev->area.x, ev->area.y, ev->area.x + ev->area.width, ev->area.y + ev->area.height), cairo_context);
return true;
}
// DEBUG_TRACE (PBD::DEBUG::CanvasEvents, string_compose ("canvas motion @ %1, %2\n", ev->x, ev->y));
- if (_grabbed_item) {
- /* if we have a grabbed item, it gets just the motion event,
- since no enter/leave events can have happened.
- */
- DEBUG_TRACE (PBD::DEBUG::CanvasEvents, string_compose ("%1 %2 (%3) was grabbed, send MOTION event there\n",
- _grabbed_item, _grabbed_item->whatami(), _grabbed_item->name));
- return _grabbed_item->Event (reinterpret_cast<GdkEvent*> (©));
- }
-
pick_current_item (where, ev->state);
/* Now deliver the motion event. It may seem a little inefficient
void
GtkCanvas::request_redraw (Rect const & request)
{
- Rect area = canvas_to_window (request);
- queue_draw_area (floor (area.x0), floor (area.y0), ceil (area.width()), ceil (area.height()));
+ boost::optional<Rect> req = request.intersection (visible_area());
+
+ if (req) {
+ Rect r = req.get();
+ Rect area = canvas_to_window (r);
+ queue_draw_area (area.x0, area.y0, area.width(), area.height());
+ }
}
/** Called to request that we try to get a particular size for ourselves.
projects / ardour.git / blobdiff