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/*
* Copyright (C) 2014-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2016-2017 Robin Gareus <robin@gareus.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <iostream>
#include <cairomm/context.h>
#include "pbd/stacktrace.h"
#include "pbd/compose.h"
#include "canvas/canvas.h"
#include "canvas/widget.h"
#include "canvas/debug.h"
using namespace std;
using namespace ArdourCanvas;
Widget::Widget (Canvas* c, CairoWidget& w)
: Item (c)
, _widget (w)
{
Event.connect (sigc::mem_fun (*this, &Widget::event_proxy));
w.set_canvas_widget ();
w.QueueDraw.connect (sigc::mem_fun(*this, &Widget::queue_draw));
w.QueueResize.connect (sigc::mem_fun(*this, &Widget::queue_resize));
}
Widget::Widget (Item* parent, CairoWidget& w)
: Item (parent)
, _widget (w)
{
Event.connect (sigc::mem_fun (*this, &Widget::event_proxy));
w.set_canvas_widget ();
w.QueueDraw.connect (sigc::mem_fun(*this, &Widget::queue_draw));
w.QueueResize.connect (sigc::mem_fun(*this, &Widget::queue_resize));
}
bool
Widget::event_proxy (GdkEvent* ev)
{
/* XXX need to translate coordinate into widget's own coordinate space */
return _widget.event (ev);
}
bool
Widget::queue_draw ()
{
begin_visual_change ();
end_visual_change ();
return true;
}
bool
Widget::queue_resize ()
{
begin_change ();
end_change ();
return true;
}
void
Widget::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
{
//std::cerr << "Render widget " << name << " @ " << position() << endl;
if (!_bounding_box) {
std::cerr << "no bbox\n";
return;
}
Rect self = item_to_window (_bounding_box);
Rect r = self.intersection (area);
if (!r) {
std::cerr << "no intersection\n";
return;
}
Rect draw = r;
cairo_rectangle_t crect;
crect.x = draw.x0;
crect.y = draw.y0;
crect.height = draw.height();
crect.width = draw.width();
Duple p = position_offset();
context->save ();
context->translate (p.x, p.y);
//context->rectangle (draw.x0, draw.y0, draw.width(), draw.height());
//context->clip ();
_widget.render (context, &crect);
context->restore ();
}
void
Widget::size_allocate (Rect const & r)
{
Item::size_allocate (r);
Gtk::Allocation alloc;
alloc.set_x (0);
alloc.set_y (0);
alloc.set_width (r.width());
alloc.set_height (r.height());
_widget.size_allocate (alloc);
}
void
Widget::compute_bounding_box () const
{
std::cerr << "cbbox for widget\n";
GtkRequisition req = { 0, 0 };
Gtk::Allocation alloc;
_widget.size_request (req);
std::cerr << "widget wants " << req.width << " x " << req.height << "\n";
_bounding_box = Rect (0, 0, req.width, req.height);
/* make sure the widget knows that it got what it asked for */
alloc.set_x (0);
alloc.set_y (0);
alloc.set_width (req.width);
alloc.set_height (req.height);
_widget.size_allocate (alloc);
_bounding_box_dirty = false;
}
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