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livetrax/gtk2_ardour/big_clock_window.cc

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/*
Copyright (C) 20002-2013 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <algorithm>
#include <string>
#include <vector>
#include "ardour_ui.h"
#include "audio_clock.h"
#include "big_clock_window.h"
#include "public_editor.h"
#include "utils.h"
#include "i18n.h"
using std::min;
using std::string;
using namespace ARDOUR_UI_UTILS;
BigClockWindow::BigClockWindow (AudioClock& c)
: ArdourWindow (_("Big Clock"))
, clock (c)
, resize_in_progress (false)
, original_height (0)
, original_width (0)
, original_font_size (0)
{
ARDOUR_UI::Clock.connect (sigc::mem_fun (clock, &AudioClock::set));
clock.set_corner_radius (0.0);
clock.mode_changed.connect (sigc::mem_fun (*this, &BigClockWindow::reset_aspect_ratio));
set_keep_above (true);
set_border_width (0);
add (clock);
clock.show_all ();
}
void
BigClockWindow::on_unmap ()
{
ArdourWindow::on_unmap ();
PublicEditor::instance().reset_focus ();
}
bool
BigClockWindow::on_key_press_event (GdkEventKey* ev)
{
return relay_key_press (ev, this);
}
void
BigClockWindow::on_realize ()
{
int x, y, w, d, h;
ArdourWindow::on_realize ();
get_window()->set_decorations (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH);
get_window()->get_geometry (x, y, w, h, d);
reset_aspect_ratio ();
original_height = h;
original_width = w;
Pango::FontDescription fd (clock.get_style()->get_font());
original_font_size = fd.get_size ();
if (!fd.get_size_is_absolute ()) {
original_font_size /= PANGO_SCALE;
}
}
void
BigClockWindow::on_size_allocate (Gtk::Allocation& alloc)
{
ArdourWindow::on_size_allocate (alloc);
if (!resize_in_progress) {
Glib::signal_idle().connect (sigc::bind (sigc::mem_fun (*this, &BigClockWindow::text_resizer), 0, 0));
resize_in_progress = true;
}
}
void
BigClockWindow::reset_aspect_ratio ()
{
Gtk::Requisition req;
clock.size_request (req);
float aspect = req.width/(float)req.height;
Gdk::Geometry geom;
geom.min_aspect = aspect;
geom.max_aspect = aspect;
set_geometry_hints (clock, geom, Gdk::HINT_ASPECT);
}
bool
BigClockWindow::text_resizer (int, int)
{
resize_in_progress = false;
Glib::RefPtr<Gdk::Window> win = get_window();
Pango::FontDescription fd (clock.get_style()->get_font());
int current_size = fd.get_size ();
int x, y, w, h, d;
if (!fd.get_size_is_absolute ()) {
current_size /= PANGO_SCALE;
}
win->get_geometry (x, y, w, h, d);
double scale = min (((double) w / (double) original_width),
((double) h / (double) original_height));
int size = (int) lrintf (original_font_size * scale);
if (size != current_size) {
string family = fd.get_family();
std::vector<char> buf(family.length()+16);
snprintf (&buf[0], family.length()+16, "%s %d", family.c_str(), size);
try {
Pango::FontDescription fd (&buf[0]);
Glib::RefPtr<Gtk::RcStyle> rcstyle = clock.get_modifier_style ();
rcstyle->set_font (fd);
clock.modify_style (rcstyle);
}
catch (...) {
/* oh well, do nothing */
}
}
return false;
}