ardour/libs/gtkmm2ext/cairo_packer.cc

105 lines
2.5 KiB
C++

/*
* Copyright (C) 2011-2015 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2015-2016 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 "gtkmm2ext/utils.h"
#include "gtkmm2ext/cairo_widget.h"
#include "gtkmm2ext/cairo_packer.h"
void
CairoPacker::draw_background (Gtk::Widget& w, GdkEventExpose*)
{
int x, y;
Gtk::Widget* window_parent;
Glib::RefPtr<Gdk::Window> win = Gtkmm2ext::window_to_draw_on (w, &window_parent);
if (win) {
Cairo::RefPtr<Cairo::Context> context = win->create_cairo_context();
w.translate_coordinates (*window_parent, 0, 0, x, y);
Gdk::Color bg = get_bg ();
context->set_source_rgba (bg.get_red_p(), bg.get_green_p(), bg.get_blue_p(), 1.0);
Gtkmm2ext::rounded_rectangle (context, x, y, w.get_allocation().get_width(), w.get_allocation().get_height(), 4);
context->fill ();
}
}
CairoHPacker::CairoHPacker ()
{
}
void
CairoHPacker::on_realize ()
{
HBox::on_realize ();
CairoWidget::provide_background_for_cairo_widget (*this, get_bg ());
}
Gdk::Color
CairoHPacker::get_bg () const
{
return get_style()->get_bg (Gtk::STATE_NORMAL);
}
bool
CairoHPacker::on_expose_event (GdkEventExpose* ev)
{
draw_background (*this, ev);
return HBox::on_expose_event (ev);
}
void
CairoHPacker::on_size_allocate (Gtk::Allocation& alloc)
{
get_parent()->queue_draw();
HBox::on_size_allocate (alloc);
}
CairoVPacker::CairoVPacker ()
{
}
bool
CairoVPacker::on_expose_event (GdkEventExpose* ev)
{
draw_background (*this, ev);
return VBox::on_expose_event (ev);
}
void
CairoVPacker::on_realize ()
{
VBox::on_realize ();
CairoWidget::provide_background_for_cairo_widget (*this, get_bg());
}
void
CairoVPacker::on_size_allocate (Gtk::Allocation& alloc)
{
get_parent()->queue_draw();
VBox::on_size_allocate (alloc);
}
Gdk::Color
CairoVPacker::get_bg () const
{
return get_style()->get_bg (Gtk::STATE_NORMAL);
}