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115 lines
3 KiB
C++
115 lines
3 KiB
C++
/*
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Copyright (C) 2011-2013 Paul Davis
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Author: Carl Hetherington <cth@carlh.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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//#include "gtkmm/messagedialog.h"
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#include <cairomm/cairomm.h>
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#include <gdkmm/general.h>
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#include "canvas/pixbuf.h"
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#include "pbd/error.h"
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#include "pbd/compose.h"
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#include "pbd/search_path.h"
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#include "pbd/file_utils.h"
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#include "ardour/filesystem_paths.h"
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using namespace std;
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using namespace ArdourCanvas;
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using namespace PBD;
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//#define dbg_msg(a) Gtk::MessageDialog (a, "ArdourCanvas::Pixbuf").run();
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Pixbuf::Pixbuf (Group* g)
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: Item (g)
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{
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}
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Pixbuf::Pixbuf (Group* g, const XMLNode& definition, const XMLNodeMap& styles, std::map<std::string, Item*>& named_items)
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: Item (g, definition, styles, named_items)
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{
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std::string imagename = xml_property(definition, "file", styles, "");
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if (!imagename.empty())
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{
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Searchpath spath(ARDOUR::ardour_data_search_path());
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std::string dirname = Glib::path_get_dirname (imagename);
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std::string filename = Glib::path_get_basename (imagename);
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if (!dirname.empty()) {
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spath.add_subdirectory_to_paths(dirname);
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}
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std::string data_file_path;
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if (find_file_in_search_path (spath, filename, data_file_path)) {
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try {
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_pixbuf = Gdk::Pixbuf::create_from_file (data_file_path);
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} catch (const Gdk::PixbufError &e) {
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cerr << "Caught PixbufError: " << e.what() << endl;
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} catch (...) {
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cerr << string_compose ("Caught exception while loading icon named %1", imagename) << endmsg;
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}
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}
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}
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}
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void
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Pixbuf::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
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{
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Rect self = item_to_window (Rect (position(), position().translate (Duple (_pixbuf->get_width(), _pixbuf->get_height()))));
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boost::optional<Rect> r = self.intersection (area);
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if (!r) {
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return;
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}
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Rect draw = r.get ();
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context->rectangle (draw.x0, draw.y0, draw.width(), draw.height());
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Gdk::Cairo::set_source_pixbuf (context, _pixbuf, draw.x0, draw.y0);
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context->paint ();
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}
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void
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Pixbuf::compute_bounding_box () const
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{
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if (_pixbuf) {
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_bounding_box = boost::optional<Rect> (Rect (0, 0, _pixbuf->get_width(), _pixbuf->get_height()));
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} else {
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_bounding_box = boost::optional<Rect> ();
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}
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_bounding_box_dirty = false;
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}
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void
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Pixbuf::set (Glib::RefPtr<Gdk::Pixbuf> pixbuf)
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{
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begin_change ();
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_pixbuf = pixbuf;
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_bounding_box_dirty = true;
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end_change ();
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}
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Glib::RefPtr<Gdk::Pixbuf>
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Pixbuf::pixbuf() {
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return _pixbuf;
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}
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