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livetrax/libs/surfaces/push2/splash.cc

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/*
Copyright (C) 2016 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 <pangomm/layout.h>
#include "pbd/compose.h"
#include "pbd/failed_constructor.h"
#include "pbd/file_utils.h"
#include "pbd/i18n.h"
#include "pbd/search_path.h"
#include "ardour/debug.h"
#include "ardour/filesystem_paths.h"
#include "splash.h"
using namespace ARDOUR;
using namespace PBD;
using namespace std;
using namespace ArdourSurface;
using namespace ArdourCanvas;
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SplashLayout::SplashLayout (Push2& p, Session& s, std::string const & name)
: Push2Layout (p, s, name)
{
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)) {
cerr << "Cannot find splash screen image file\n";
throw failed_constructor();
}
img = Cairo::ImageSurface::create_from_png (splash_file);
}
SplashLayout::~SplashLayout ()
{
}
void
SplashLayout::render (Rect const& area, Cairo::RefPtr<Cairo::Context> context) const
{
DEBUG_TRACE (DEBUG::Push2, string_compose ("splash render %1\n", area));
int rows = display_height ();
int cols = display_width ();
double x_ratio = (double) img->get_width() / (cols - 20);
double y_ratio = (double) img->get_height() / (rows - 20);
double scale = min (x_ratio, y_ratio);
/* background */
context->set_source_rgb (0.764, 0.882, 0.882);
context->paint ();
/* image */
context->save ();
context->translate (5, 5);
context->scale (scale, scale);
context->set_source (img, 0, 0);
context->paint ();
context->restore ();
/* text */
Glib::RefPtr<Pango::Layout> some_text = Pango::Layout::create (context);
Pango::FontDescription fd ("Sans 38");
some_text->set_font_description (fd);
some_text->set_text (string_compose ("%1 %2", PROGRAM_NAME, VERSIONSTRING));
context->move_to (200, 10);
context->set_source_rgb (0, 0, 0);
some_text->update_from_cairo_context (context);
some_text->show_in_cairo_context (context);
Pango::FontDescription fd2 ("Sans Italic 18");
some_text->set_font_description (fd2);
some_text->set_text (_("Ableton Push 2 Support"));
context->move_to (200, 80);
context->set_source_rgb (0, 0, 0);
some_text->update_from_cairo_context (context);
some_text->show_in_cairo_context (context);
}