2 Copyright (C) 2014 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include <cairomm/context.h>
21 #include "pbd/stacktrace.h"
22 #include "pbd/compose.h"
24 #include "canvas/canvas.h"
25 #include "canvas/widget.h"
26 #include "canvas/debug.h"
27 #include "canvas/utils.h"
30 using namespace ArdourCanvas;
32 Widget::Widget (Canvas* c, CairoWidget& w)
36 Event.connect (sigc::mem_fun (*this, &Widget::event_proxy));
37 w.set_canvas_widget ();
38 w.QueueDraw.connect (sigc::mem_fun(*this, &Widget::queue_draw));
39 w.QueueResize.connect (sigc::mem_fun(*this, &Widget::queue_resize));
42 Widget::Widget (Item* parent, CairoWidget& w)
46 Event.connect (sigc::mem_fun (*this, &Widget::event_proxy));
47 w.set_canvas_widget ();
48 w.QueueDraw.connect (sigc::mem_fun(*this, &Widget::queue_draw));
49 w.QueueResize.connect (sigc::mem_fun(*this, &Widget::queue_resize));
53 Widget::event_proxy (GdkEvent* ev)
55 /* XXX need to translate coordinate into widget's own coordinate space */
56 return _widget.event (ev);
62 begin_visual_change ();
68 Widget::queue_resize ()
76 Widget::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
78 //std::cerr << "Render widget " << name << " @ " << position() << endl;
81 std::cerr << "no bbox\n";
85 Rect self = item_to_window (_bounding_box);
86 Rect r = self.intersection (area);
89 std::cerr << "no intersection\n";
94 cairo_rectangle_t crect;
97 crect.height = draw.height();
98 crect.width = draw.width();
100 Duple p = position_offset();
103 context->translate (p.x, p.y);
104 //context->rectangle (draw.x0, draw.y0, draw.width(), draw.height());
107 _widget.render (context, &crect);
113 Widget::size_allocate (Rect const & r)
115 Item::size_allocate (r);
116 Gtk::Allocation alloc;
119 alloc.set_width (r.width());
120 alloc.set_height (r.height());
121 _widget.size_allocate (alloc);
125 Widget::compute_bounding_box () const
127 std::cerr << "cbbox for widget\n";
129 GtkRequisition req = { 0, 0 };
130 Gtk::Allocation alloc;
132 _widget.size_request (req);
134 std::cerr << "widget wants " << req.width << " x " << req.height << "\n";
136 _bounding_box = Rect (0, 0, req.width, req.height);
138 /* make sure the widget knows that it got what it asked for */
141 alloc.set_width (req.width);
142 alloc.set_height (req.height);
144 _widget.size_allocate (alloc);
146 _bounding_box_dirty = false;