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"
29 using namespace ArdourCanvas;
31 Widget::Widget (Canvas* c, CairoWidget& w)
35 Event.connect (sigc::mem_fun (*this, &Widget::event_proxy));
36 w.set_canvas_widget ();
37 w.QueueDraw.connect (sigc::mem_fun(*this, &Widget::queue_draw));
38 w.QueueResize.connect (sigc::mem_fun(*this, &Widget::queue_resize));
41 Widget::Widget (Item* parent, CairoWidget& w)
45 Event.connect (sigc::mem_fun (*this, &Widget::event_proxy));
46 w.set_canvas_widget ();
47 w.QueueDraw.connect (sigc::mem_fun(*this, &Widget::queue_draw));
48 w.QueueResize.connect (sigc::mem_fun(*this, &Widget::queue_resize));
52 Widget::event_proxy (GdkEvent* ev)
54 /* XXX need to translate coordinate into widget's own coordinate space */
55 return _widget.event (ev);
61 begin_visual_change ();
67 Widget::queue_resize ()
75 Widget::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
77 //std::cerr << "Render widget " << name << " @ " << position() << endl;
80 std::cerr << "no bbox\n";
84 Rect self = item_to_window (_bounding_box);
85 Rect r = self.intersection (area);
88 std::cerr << "no intersection\n";
93 cairo_rectangle_t crect;
96 crect.height = draw.height();
97 crect.width = draw.width();
99 Duple p = position_offset();
102 context->translate (p.x, p.y);
103 //context->rectangle (draw.x0, draw.y0, draw.width(), draw.height());
106 _widget.render (context, &crect);
112 Widget::size_allocate (Rect const & r)
114 Item::size_allocate (r);
115 Gtk::Allocation alloc;
118 alloc.set_width (r.width());
119 alloc.set_height (r.height());
120 _widget.size_allocate (alloc);
124 Widget::compute_bounding_box () const
126 std::cerr << "cbbox for widget\n";
128 GtkRequisition req = { 0, 0 };
129 Gtk::Allocation alloc;
131 _widget.size_request (req);
133 std::cerr << "widget wants " << req.width << " x " << req.height << "\n";
135 _bounding_box = Rect (0, 0, req.width, req.height);
137 /* make sure the widget knows that it got what it asked for */
140 alloc.set_width (req.width);
141 alloc.set_height (req.height);
143 _widget.size_allocate (alloc);
145 _bounding_box_dirty = false;