X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fcanvas%2Fcanvas.cc;h=c6c4aed20c77638455d74c89b6c9160fec15d994;hb=22b07e0233a29d9633ffa825a79503befaf2e16e;hp=72acbd402166579f18bf276ffd8eeb9cabf3bddc;hpb=30d95bbb8c007bf4db96dff86eea9eff6c5eeab1;p=ardour.git diff --git a/libs/canvas/canvas.cc b/libs/canvas/canvas.cc index 72acbd4021..c6c4aed20c 100644 --- a/libs/canvas/canvas.cc +++ b/libs/canvas/canvas.cc @@ -18,6 +18,10 @@ */ +#if !defined USE_CAIRO_IMAGE_SURFACE && !defined NDEBUG +#define OPTIONAL_CAIRO_IMAGE_SURFACE +#endif + /** @file canvas/canvas.cc * @brief Implementation of the main canvas classes. */ @@ -68,7 +72,7 @@ Canvas::scroll_to (Coord x, Coord y) (*i)->scroll_to (Duple (x, y)); } - pick_current_item (0); // no current mouse position + pick_current_item (0); // no current mouse position } void @@ -100,7 +104,7 @@ Canvas::render (Rect const & area, Cairo::RefPtr const & context #endif render_count = 0; - + boost::optional root_bbox = _root.bounding_box(); if (!root_bbox) { /* the root has no bounding box, so there's nothing to render */ @@ -109,7 +113,7 @@ Canvas::render (Rect const & area, Cairo::RefPtr const & context boost::optional draw = root_bbox->intersection (area); if (draw) { - + /* there's a common area between the root and the requested area, so render it. */ @@ -140,7 +144,7 @@ operator<< (ostream& o, Canvas& c) std::string Canvas::indent() const -{ +{ string s; for (int n = 0; n < ArdourCanvas::dump_depth; ++n) { @@ -152,7 +156,7 @@ Canvas::indent() const std::string Canvas::render_indent() const -{ +{ string s; for (int n = 0; n < ArdourCanvas::render_depth; ++n) { @@ -167,7 +171,7 @@ Canvas::dump (ostream& o) const { dump_depth = 0; _root.dump (o); -} +} /** Called when an item has been shown or hidden. * @param item Item that has been shown or hidden. @@ -206,7 +210,7 @@ Canvas::item_visual_property_changed (Item* item) void Canvas::item_changed (Item* item, boost::optional pre_change_bounding_box) { - + Rect window_bbox = visible_area (); if (pre_change_bounding_box) { @@ -219,7 +223,7 @@ Canvas::item_changed (Item* item, boost::optional pre_change_bounding_box) boost::optional post_change_bounding_box = item->bounding_box (); if (post_change_bounding_box) { - + if (item->item_to_window (*post_change_bounding_box).intersection (window_bbox)) { /* request a redraw of the item's new bounding box */ queue_draw_item_area (item, post_change_bounding_box.get ()); @@ -254,12 +258,12 @@ Canvas::window_to_canvas (Duple const & d) const /* XXX January 22nd 2015: leaving this in place for now * but I think it fixes a bug that really should be * fixed in a different way (and will be) by my next - * commit. But it may still be relevant. + * commit. But it may still be relevant. */ /* If scroll groups overlap, choose the one with the highest sensitivity, that is, choose an HV scroll group over an H or V - only group. + only group. */ if (!best_group || sg->sensitivity() > best_group->sensitivity()) { best_group = sg; @@ -402,7 +406,7 @@ GtkCanvas::pick_current_item (int state) * added or removed, so we have no coordinates to work from as is the * case with a motion event. Find out where the mouse is and use that. */ - + Glib::RefPtr pointer_window = Gdk::Display::get_default()->get_window_at_pointer (x, y); if (pointer_window != get_window()) { @@ -449,7 +453,7 @@ GtkCanvas::pick_current_item (Duple const & point, int state) top, but we're going to reverse that for within_items so that its first item is the upper-most item that can be chosen as _current_item. */ - + vector::const_iterator i; list within_items; @@ -479,7 +483,7 @@ GtkCanvas::pick_current_item (Duple const & point, int state) DEBUG_TRACE (PBD::DEBUG::CanvasEnterLeave, string_compose ("CURRENT ITEM %1/%2\n", _new_current_item->whatami(), _current_item->name)); return; } - + _new_current_item = const_cast (within_items.front()); } @@ -521,7 +525,7 @@ GtkCanvas::deliver_enter_leave (Duple const & point, int state) /* Events delivered to canvas items are expected to be in canvas * coordinates but @param point is in window coordinates. */ - + Duple c = window_to_canvas (point); enter_event.x = c.x; enter_event.y = c.y; @@ -555,7 +559,7 @@ GtkCanvas::deliver_enter_leave (Duple const & point, int state) enter_detail = GDK_NOTIFY_UNKNOWN; /* no current item, so also send virtual enter events to the - * entire heirarchy for the new item + * entire heirarchy for the new item */ for (i = _new_current_item->parent(); i ; i = i->parent()) { @@ -565,12 +569,12 @@ GtkCanvas::deliver_enter_leave (Duple const & point, int state) } else if (_current_item->is_descendant_of (*_new_current_item)) { /* move from descendant to ancestor (X: "_current_item is an - * inferior ("child") 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. */ - + for (i = _current_item->parent(); i && i != _new_current_item; i = i->parent()) { items_to_leave_virtual.push_back (i); } @@ -616,7 +620,7 @@ GtkCanvas::deliver_enter_leave (Duple const & point, int state) enter_detail = GDK_NOTIFY_NONLINEAR; leave_detail = GDK_NOTIFY_NONLINEAR; } - + if (_current_item && !_current_item->ignore_events ()) { leave_event.detail = leave_detail; @@ -681,22 +685,22 @@ GtkCanvas::deliver_event (GdkEvent* event) /* run through the items from child to parent, until one claims the event */ Item* item = const_cast (event_item); - + while (item) { Item* parent = item->parent (); - if (!item->ignore_events () && + if (!item->ignore_events () && item->Event (event)) { /* this item has just handled the event */ DEBUG_TRACE ( PBD::DEBUG::CanvasEvents, string_compose ("canvas event handled by %1 %2\n", item->whatami(), item->name.empty() ? "[unknown]" : item->name) ); - + return true; } - + 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) { @@ -718,7 +722,7 @@ GtkCanvas::item_going_away (Item* item, boost::optional bounding_box) if (bounding_box) { queue_draw_item_area (item, bounding_box.get ()); } - + if (_new_current_item == item) { _new_current_item = 0; } @@ -742,24 +746,30 @@ GtkCanvas::item_going_away (Item* item, boost::optional bounding_box) } if (_current_item == item) { - /* no need to send a leave event to this item, since it is going away + /* 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 } - + } void GtkCanvas::on_size_allocate (Gtk::Allocation& a) { EventBox::on_size_allocate (a); -#ifdef USE_CAIRO_IMAGE_SURFACE +#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE + if (getenv("ARDOUR_IMAGE_SURFACE")) { +#endif +#if defined USE_CAIRO_IMAGE_SURFACE || defined OPTIONAL_CAIRO_IMAGE_SURFACE /* allocate an image surface as large as the canvas itself */ canvas_image.clear (); canvas_image = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, a.get_width(), a.get_height()); #endif +#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE + } +#endif } /** Handler for GDK expose events. @@ -769,32 +779,44 @@ GtkCanvas::on_size_allocate (Gtk::Allocation& a) bool GtkCanvas::on_expose_event (GdkEventExpose* ev) { -#ifdef USE_CAIRO_IMAGE_SURFACE +#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE + Cairo::RefPtr draw_context; + Cairo::RefPtr window_context; + if (getenv("ARDOUR_IMAGE_SURFACE")) { + if (!canvas_image) { + canvas_image = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, get_width(), get_height()); + } + draw_context = Cairo::Context::create (canvas_image); + window_context = get_window()->create_cairo_context (); + } else { + draw_context = get_window()->create_cairo_context (); + } +#elif defined USE_CAIRO_IMAGE_SURFACE if (!canvas_image) { canvas_image = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, get_width(), get_height()); } Cairo::RefPtr draw_context = Cairo::Context::create (canvas_image); Cairo::RefPtr window_context = get_window()->create_cairo_context (); -#else +#else Cairo::RefPtr draw_context = get_window()->create_cairo_context (); #endif /* draw background color */ - + draw_context->rectangle (ev->area.x, ev->area.y, ev->area.width, ev->area.height); draw_context->clip_preserve (); set_source_rgba (draw_context, _bg_color); draw_context->fill (); - + /* render canvas */ if ( _single_exposure ) { - + render (Rect (ev->area.x, ev->area.y, ev->area.x + ev->area.width, ev->area.y + ev->area.height), draw_context); } else { GdkRectangle* rects; gint nrects; - + gdk_region_get_rectangles (ev->region, &rects, &nrects); for (gint n = 0; n < nrects; ++n) { draw_context->set_identity_matrix(); //reset the cairo matrix, just in case someone left it transformed after drawing ( cough ) @@ -802,8 +824,11 @@ GtkCanvas::on_expose_event (GdkEventExpose* ev) } g_free (rects); } - -#ifdef USE_CAIRO_IMAGE_SURFACE + +#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE + if (getenv("ARDOUR_IMAGE_SURFACE")) { +#endif +#if defined USE_CAIRO_IMAGE_SURFACE || defined OPTIONAL_CAIRO_IMAGE_SURFACE /* now blit our private surface back to the GDK one */ window_context->rectangle (ev->area.x, ev->area.y, ev->area.width, ev->area.height); @@ -812,6 +837,9 @@ GtkCanvas::on_expose_event (GdkEventExpose* ev) window_context->set_operator (Cairo::OPERATOR_SOURCE); window_context->paint (); #endif +#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE + } +#endif return true; } @@ -828,12 +856,12 @@ GtkCanvas::on_scroll_event (GdkEventScroll* ev) GdkEvent copy = *((GdkEvent*)ev); Duple winpos = Duple (ev->x, ev->y); Duple where = window_to_canvas (winpos); - + pick_current_item (winpos, ev->state); copy.button.x = where.x; copy.button.y = where.y; - + /* Coordinates in the event will be canvas coordinates, correctly adjusted for scroll if this GtkCanvas is in a GtkCanvasViewport. */ @@ -876,12 +904,12 @@ GtkCanvas::on_button_press_event (GdkEventButton* ev) GdkEvent copy = *((GdkEvent*)ev); Duple winpos = Duple (ev->x, ev->y); Duple where = window_to_canvas (winpos); - + pick_current_item (winpos, ev->state); copy.button.x = where.x; copy.button.y = where.y; - + /* Coordinates in the event will be canvas coordinates, correctly adjusted for scroll if this GtkCanvas is in a GtkCanvasViewport. */ @@ -896,13 +924,13 @@ GtkCanvas::on_button_press_event (GdkEventButton* ev) */ bool GtkCanvas::on_button_release_event (GdkEventButton* ev) -{ +{ /* translate event coordinates from window to canvas */ GdkEvent copy = *((GdkEvent*)ev); Duple winpos = Duple (ev->x, ev->y); Duple where = window_to_canvas (winpos); - + pick_current_item (winpos, ev->state); copy.button.x = where.x; @@ -956,7 +984,7 @@ GtkCanvas::on_motion_notify_event (GdkEventMotion* ev) copy.motion.x = where.x; copy.motion.y = where.y; - /* Coordinates in "copy" will be canvas coordinates, + /* Coordinates in "copy" will be canvas coordinates, */ DEBUG_TRACE (PBD::DEBUG::CanvasEvents, string_compose ("canvas motion @ %1, %2 canvas @ %3, %4\n", ev->x, ev->y, copy.motion.x, copy.motion.y)); @@ -1172,12 +1200,12 @@ GtkCanvas::show_tooltip () (void) toplevel->get_window()->get_pointer (pointer_x, pointer_y, mask); Duple tooltip_window_origin (pointer_x, pointer_y); - + /* convert to root window coordinates */ int win_x, win_y; dynamic_cast(toplevel)->get_position (win_x, win_y); - + tooltip_window_origin = tooltip_window_origin.translate (Duple (win_x, win_y)); /* we don't want the pointer to be inside the window when it is @@ -1199,7 +1227,7 @@ GtkCanvas::show_tooltip () /* ready to show */ tooltip_window->present (); - + /* called from a timeout handler, don't call it again */ return false; @@ -1249,7 +1277,7 @@ void GtkCanvasViewport::on_size_request (Gtk::Requisition* req) { /* force the canvas to size itself */ - // _canvas.root()->bounding_box(); + // _canvas.root()->bounding_box(); req->width = 16; req->height = 16;