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livetrax/gtk2_ardour/splash.cc

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/*
* Copyright (C) 2008-2012 David Robillard <d@drobilla.net>
* Copyright (C) 2008-2016 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2009-2012 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2012-2014 Tim Mayberry <mojofunk@gmail.com>
* Copyright (C) 2012-2017 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 <string>
#include "pbd/failed_constructor.h"
#include "pbd/file_utils.h"
#include "ardour/ardour.h"
#include "ardour/filesystem_paths.h"
#include "gtkmm2ext/utils.h"
#ifdef check
#undef check
#endif
#include "gui_thread.h"
#include "opts.h"
#include "splash.h"
#include "ui_config.h"
#include "pbd/i18n.h"
using namespace Gtk;
using namespace Glib;
using namespace PBD;
using namespace std;
using namespace ARDOUR;
Splash* Splash::the_splash = 0;
Splash*
Splash::instance()
{
if (!the_splash) {
the_splash = new Splash;
}
return the_splash;
}
bool
Splash::exists ()
{
return the_splash;
}
void
Splash::drop ()
{
delete the_splash;
the_splash = 0;
}
Splash::Splash ()
{
assert (the_splash == 0);
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std::string splash_file;
Searchpath rc (ARDOUR::ardour_data_search_path());
rc.add_subdirectory_to_paths ("resources");
if (!find_file (rc, PROGRAM_NAME "-splash.png", splash_file)) {
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cerr << "Cannot find splash screen image file\n";
throw failed_constructor();
}
try {
pixbuf = Gdk::Pixbuf::create_from_file (splash_file);
}
catch (...) {
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cerr << "Cannot construct splash screen image\n";
throw failed_constructor();
}
darea.set_size_request (pixbuf->get_width(), pixbuf->get_height());
pop_front ();
set_position (WIN_POS_CENTER);
darea.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
darea.set_double_buffered (false);
layout = create_pango_layout ("");
string str = "<b>";
string i18n = string_compose (_("%1 loading ..."), PROGRAM_NAME);
str += i18n;
str += "</b>";
layout->set_markup (str);
darea.show ();
darea.signal_expose_event().connect (sigc::mem_fun (*this, &Splash::expose));
add (darea);
set_default_size (pixbuf->get_width(), pixbuf->get_height());
set_resizable (false);
set_type_hint(Gdk::WINDOW_TYPE_HINT_SPLASHSCREEN);
the_splash = this;
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expose_done = false;
expose_is_the_one = false;
if (!ARDOUR_COMMAND_LINE::no_splash) {
ARDOUR::BootMessage.connect (msg_connection, invalidator (*this), boost::bind (&Splash::boot_message, this, _1), gui_context());
present ();
}
}
Splash::~Splash ()
{
idle_connection.disconnect ();
expose_done = true;
hide ();
the_splash = 0;
}
void
Splash::pop_back_for (Gtk::Window& win)
{
set_keep_above (false);
#if defined __APPLE__ || defined PLATFORM_WINDOWS
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/* April 2013: window layering on OS X is a bit different to X Window. at present,
* the "restack()" functionality in GDK will only operate on windows in the same
* "level" (e.g. two normal top level windows, or two utility windows) and will not
* work across them. The splashscreen is on its own "StatusWindowLevel" so restacking
* is not going to work.
*
* So for OS X, we just hide ourselves.
*
* Oct 2014: The Windows situation is similar, although it should be possible
* to play tricks with gdk's set_type_hint() or directly hack things using
* SetWindowLong() and UpdateLayeredWindow()
*/
(void) win;
hide();
#else
if (UIConfiguration::instance().get_hide_splash_screen ()) {
hide ();
} else if (get_mapped ()) {
get_window()->restack (win.get_window(), false);
if (0 == win.get_transient_for ()) {
win.set_transient_for (*this);
}
}
#endif
_window_stack.insert (&win);
}
void
Splash::pop_front_for (Gtk::Window& win)
{
#ifndef NDEBUG
assert (1 == _window_stack.erase (&win));
#else
_window_stack.erase (&win);
#endif
if (_window_stack.empty ()) {
display ();
}
}
void
Splash::pop_front ()
{
if (!_window_stack.empty ()) {
return;
}
if (ARDOUR_COMMAND_LINE::no_splash) {
return;
}
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if (get_window()) {
#if defined __APPLE__ || defined PLATFORM_WINDOWS
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show ();
#else
if (UIConfiguration::instance().get_hide_splash_screen ()) {
show ();
} else {
unset_transient_for ();
gdk_window_restack (get_window()->gobj(), NULL, true);
}
#endif
set_keep_above (true);
}
}
void
Splash::hide ()
{
Gtk::Window::hide();
}
void
Splash::on_realize ()
{
Window::on_realize ();
get_window()->set_decorations (Gdk::WMDecoration(0));
layout->set_font_description (get_style()->get_font());
}
bool
Splash::on_button_release_event (GdkEventButton* ev)
{
RefPtr<Gdk::Window> window = get_window();
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if (!window || ev->window != window->gobj()) {
return false;
}
hide ();
return true;
}
bool
Splash::expose (GdkEventExpose* ev)
{
RefPtr<Gdk::Window> window = darea.get_window();
/* clear background (for transparent splash images */
Glib::RefPtr<Gdk::GC> bg = get_style()->get_bg_gc (STATE_NORMAL);
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window->draw_rectangle(bg, true, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
/* note: height & width need to be constrained to the pixbuf size
in case a WM provides us with a screwy allocation
*/
window->draw_pixbuf (get_style()->get_bg_gc (STATE_NORMAL), pixbuf,
ev->area.x, ev->area.y,
ev->area.x, ev->area.y,
min ((pixbuf->get_width() - ev->area.x), ev->area.width),
min ((pixbuf->get_height() - ev->area.y), ev->area.height),
Gdk::RGB_DITHER_NONE, 0, 0);
Glib::RefPtr<Gtk::Style> style = darea.get_style();
Glib::RefPtr<Gdk::GC> white = style->get_white_gc();
window->draw_layout (white, 10, pixbuf->get_height() - 30, layout);
/* this must execute AFTER the GDK idle update mechanism
*/
if (expose_is_the_one) {
idle_connection = Glib::signal_idle().connect (
sigc::mem_fun (this, &Splash::idle_after_expose),
GDK_PRIORITY_REDRAW+2);
}
return true;
}
void
Splash::boot_message (std::string msg)
{
if (!get_visible() && _window_stack.empty ()) {
display ();
}
message (msg);
}
bool
Splash::idle_after_expose ()
{
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expose_done = true;
return false;
}
void
Splash::display ()
{
bool was_mapped = get_mapped ();
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if (ARDOUR_COMMAND_LINE::no_splash) {
return;
}
if (!was_mapped) {
expose_done = false;
expose_is_the_one = false;
}
pop_front ();
present ();
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if (!was_mapped) {
int timeout = 50;
darea.queue_draw ();
while (!expose_done && --timeout) {
gtk_main_iteration ();
}
gdk_display_flush (gdk_display_get_default());
}
}
void
Splash::message (const string& msg)
{
string str ("<b>");
str += Gtkmm2ext::markup_escape_text (msg);
str += "</b>";
layout->set_markup (str);
Glib::RefPtr<Gdk::Window> win = darea.get_window();
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if (win) {
if (win->is_visible ()) {
win->invalidate_rect (Gdk::Rectangle (0, darea.get_height() - 30, darea.get_width(), 30), true);
} else {
darea.queue_draw ();
}
if (expose_done) {
ARDOUR::GUIIdle ();
}
}
}
bool
Splash::on_map_event (GdkEventAny* ev)
{
expose_is_the_one = true;
return Window::on_map_event (ev);
}