qt_gui.cpp

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// This file is part of Ambulant Player, www.ambulantplayer.org.
//
// Copyright (C) 2003-2007 Stichting CWI, 
// Kruislaan 413, 1098 SJ Amsterdam, The Netherlands.
//
// Ambulant Player is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation; either version 2.1 of the License, or
// (at your option) any later version.
//
// Ambulant Player 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Ambulant Player; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

/* qt_gui.cpp - Qt GUI for Ambulant
 *              
 */

#include <pthread.h>
#include <libgen.h>
#include <stdlib.h>
#include <fcntl.h>
#include "qt_gui.h"
#include "qt_mainloop.h"
#include "qt_logger.h"
#include "qt_renderer.h"
#include <qthread.h>

#include "ambulant/config/config.h"
#include "ambulant/lib/logger.h"
#include "ambulant/version.h"
#include "ambulant/gui/qt/qt_includes.h"
#include "ambulant/gui/qt/qt_factory.h"

//#define AM_DBG
#ifndef AM_DBG
#define AM_DBG if(0)
#endif

#define	WITH_QT_LOGGER

const QString about_text1 = 
	"Ambulant SMIL 2.1 player.\nVersion: ";
const QString about_text2 = 
	"\nCopyright Stichting CWI, 2003-2007.\n\n"
	"License: LGPL";


// Places where to look for the Welcome document
const char *welcome_locations[] = {
	"Welcome/Welcome.smil",
	"../Welcome/Welcome.smil",
	"Extras/Welcome/Welcome.smil",
	"../Extras/Welcome/Welcome.smil",
#ifdef AMBULANT_DATADIR
	AMBULANT_DATADIR "/Welcome/Welcome.smil",
#else
	"/usr/local/share/ambulant/Welcome/Welcome.smil",
#endif
#ifdef	QT_NO_FILEDIALOG	/* Assume embedded Qt */
	"/home/zaurus/Documents/Ambulant/Extras/Welcome/Welcome.smil",
#endif/*QT_NO_FILEDIALOG*/
	NULL
};

// Places where to look for the helpfile
const char *helpfile_locations[] = {
	"Documentation/user/index.html",
	"../Documentation/user/index.html",
#ifdef AMBULANT_DATADIR
	AMBULANT_DATADIR "/AmbulantPlayerHelp/index.html",
#else
	"/usr/local/share/ambulant/AmbulantPlayerHelp/index.html",
#endif
	NULL
};

static const char * 
find_datafile(const char **locations)
{
	const char **p;
	for(p = locations; *p; p++) {
		if (access(*p, 0) >= 0) return *p;
	}
	return NULL;
}

qt_gui::qt_gui(const char* title,
	       const char* initfile)
 :
#ifdef	WITH_QT_HTML_WIDGET
  KMainWindow(0L, title),
#else /*WITH_QT_HTML_WIDGET*/
	QWidget(),  
#endif/*WITH_QT_HTML_WIDGET*/
#ifndef QT_NO_FILEDIALOG	/* Assume plain Qt */
	m_cursor_shape(Qt::ArrowCursor),
#else /*QT_NO_FILEDIALOG*/	/* Assume embedded Qt */
	//m_cursor_shape(arrowCursor);
	m_fileselector(NULL),
	m_settings_selector(NULL),
#endif/*QT_NO_FILEDIALOG*/
	m_mainloop(NULL),
#ifdef	TRY_LOCKING
	m_gui_thread(0),
#endif/*TRY_LOCKING*/
	m_smilfilename(NULL)
{

	m_programfilename = title;
#ifdef	TRY_LOCKING
	pthread_cond_init(&m_cond_message, NULL);
	pthread_mutex_init(&m_lock_message, NULL);
	m_gui_thread = pthread_self();
#endif/*TRY_LOCKING*/
	if (initfile != NULL && initfile != "")
		m_smilfilename = QString(initfile);
#ifdef  QT_NO_FILEDIALOG
	else
		m_smilfilename = QString(
			"/home/zaurus/Documents/example.smil");
#endif/*QT_NO_FILEDIALOG*/
	setCaption(initfile);

	/* Menu bar */
	m_menubar = new QMenuBar(this,"MainMenu");
	{
		int id;
		/* File */
		m_filemenu = new QPopupMenu (this);
		assert(m_filemenu);
		int open_id = m_filemenu->insertItem(gettext("&Open..."), this, SLOT(slot_open()));
		m_filemenu->setAccel(CTRL+Key_O, open_id);
		int url_id = m_filemenu->insertItem(gettext("Open &URL..."), this, SLOT(slot_open_url()));
		m_filemenu->setAccel(CTRL+Key_L, url_id);
		m_reload_id = m_filemenu->insertItem(gettext("&Reload..."), this, SLOT(slot_reload()));
#ifdef QT_NO_FILEDIALOG	/* Assume embedded Qt */
		// Disable unavailable menu entries
		m_filemenu->setItemEnabled(open_id, true);
		m_filemenu->setItemEnabled(url_id, false);
#endif/*QT_NO_FILEDIALOG*/
		m_filemenu->insertSeparator();
		
		m_filemenu->insertItem(gettext("&Preferences..."), this, SLOT(slot_settings_select()));
		m_filemenu->insertItem(gettext("&Document Settings..."), this, SLOT(slot_load_settings()));
		m_filemenu->insertSeparator();
		
		int quit_id = m_filemenu->insertItem(gettext("&Quit"), this, SLOT(slot_quit()));
		m_filemenu->setAccel(CTRL+Key_Q, quit_id);
		m_menubar->insertItem(gettext("&File"), m_filemenu);
		
		/* Play */
		m_playmenu = new QPopupMenu (this, "PlayA");
		assert(m_playmenu);
		m_play_id = m_playmenu->insertItem(gettext("Pla&y"), this, SLOT(slot_play()));
		m_playmenu->setAccel(CTRL+Key_P, m_play_id);
		m_playmenu->setItemEnabled(m_play_id, false);
		m_pause_id = m_playmenu->insertItem(gettext("&Pause"), this, SLOT(slot_pause()));
		m_playmenu->setAccel(CTRL+Key_Space, m_pause_id);
		m_playmenu->setItemEnabled(m_pause_id, false);
		m_stop_id = m_playmenu->insertItem(gettext("&Stop"), this, SLOT(slot_stop()));
		m_playmenu->setAccel(CTRL+Key_S, m_stop_id);
		m_menubar->insertItem(gettext("Pla&y"), m_playmenu);
		
		/* View */
		m_viewmenu = new QPopupMenu(this, "View");
		int fullscreen_id = m_viewmenu->insertItem(gettext("&Full Screen"), this, SLOT(showFullScreen()));
		m_viewmenu->setAccel(CTRL+Key_F, fullscreen_id);
		int window_id = m_viewmenu->insertItem(gettext("&Window"), this, SLOT(showNormal()));
		m_viewmenu->setAccel(CTRL+SHIFT+Key_F, window_id);
		m_viewmenu->insertSeparator();
#ifdef	WITH_QT_LOGGER
		m_viewmenu->insertItem(gettext("&Log Window..."), this, SLOT(slot_logger_window()));
#endif/*WITH_QT_LOGGER*/
		m_menubar->insertItem(gettext("&View"), m_viewmenu);
		
		/* Help */
		m_helpmenu = new QPopupMenu (this, "HelpA");
		assert(m_helpmenu);
		m_helpmenu->insertItem(gettext("&About AmbulantPlayer"), this, SLOT(slot_about()));
		int help_id = m_helpmenu->insertItem(gettext("AmbulantPlayer &Help..."), this, SLOT(slot_help()));
		m_helpmenu->setAccel(CTRL+Key_Question, help_id);
		m_helpmenu->insertSeparator();
		m_helpmenu->insertItem(gettext("AmbulantPlayer &Website..."), this, SLOT(slot_homepage()));
		m_helpmenu->insertItem(gettext("&Play Welcome Document"), this, SLOT(slot_welcome()));
		m_menubar->insertItem(gettext("&Help"), m_helpmenu);
		m_menubar->setGeometry(0,0,320,20);
#ifndef QT_NO_FILEDIALOG	/* Assume plain Qt */
		m_menubar_height = 27;
#else /*QT_NO_FILEDIALOG*/	/* Assume embedded Qt */
		m_menubar_height = 20;
#endif/*QT_NO_FILEDIALOG*/
	}
	QObject::connect(this, SIGNAL(signal_player_done()),
			    this, SLOT(slot_player_done()));
	_update_menus();
}

qt_gui::~qt_gui() {
#define DELETE(X) if (X) { delete X; X = NULL; }
	AM_DBG printf("%s0x%X\n", "qt_gui::~qt_gui(), m_mainloop=",m_mainloop);
	setCaption(QString::null);
#ifdef  QT_NO_FILEDIALOG	/* Assume embedded Qt */
	DELETE(m_fileselector)
	DELETE(m_settings_selector)
#endif/*QT_NO_FILEDIALOG*/
	DELETE(m_mainloop) 
	DELETE(m_filemenu)
	DELETE(m_helpmenu)
	DELETE(m_playmenu)
	DELETE(m_viewmenu)
	DELETE(m_menubar)
	m_smilfilename = (char *)NULL;
}

void 
qt_gui::slot_about() {
	int but = QMessageBox::information(this, gettext("About AmbulantPlayer"),
					   about_text1+get_version()+about_text2,
					   gettext("OK"));
}

void 
qt_gui::slot_homepage() {
	open_web_browser("http://www.ambulantplayer.org");
}

void 
qt_gui::slot_welcome() {
	const char *welcome_doc = find_datafile(welcome_locations);
	
	if (welcome_doc) {
		if( openSMILfile(welcome_doc, IO_ReadOnly)) {
			slot_play();
		}
	} else {
		QMessageBox::information(this, m_programfilename, 
			gettext("Cannot find Welcome.smil document"));
	}
}

void 
qt_gui::slot_help() {
	const char *help_doc = find_datafile(helpfile_locations);
	
	if (help_doc) {
		open_web_browser(help_doc);
	} else {
		QMessageBox::information(this, m_programfilename, 
			gettext("Cannot find Ambulant Player Help"));
	}
}

void
qt_gui::slot_logger_window() {
	AM_DBG printf("slot_logger_window()\n");
#ifndef QT_NO_FILEDIALOG	 /* Assume plain Qt */
	QTextEdit* logger_window =
		qt_logger::get_qt_logger()->get_logger_window();
	if (logger_window->isHidden())
		logger_window->show();
	else
		logger_window->hide();
#endif/*QT_NO_FILEDIALOG*/
}

bool 
checkFilename(QString filename, int mode) {
	QFile* file = new QFile(filename);
	return file->open(mode);
}

void
qt_gui::fileError(QString smilfilename) {
 	char buf[1024];
	sprintf(buf, gettext("%s: Cannot open file: %s"),
		(const char*) smilfilename, strerror(errno));
	QMessageBox::information(this, m_programfilename, buf);
}

bool 
qt_gui::openSMILfile(QString smilfilename, int mode) {
	if (smilfilename.isNull())
		return false;
#if 0
	if (! checkFilename(smilfilename, mode)) {
		fileError(smilfilename);
		return false;
	}
#endif
	char* filename = strdup(smilfilename);
	setCaption(basename(filename));
	free(filename);
	m_playmenu->setItemEnabled(m_pause_id, false);
	m_playmenu->setItemEnabled(m_play_id, true);
	m_smilfilename = smilfilename;
	if (m_mainloop != NULL)
		delete m_mainloop;
 	m_mainloop = new qt_mainloop(this, m_menubar_height);
	return m_mainloop->is_open();
}

void 
qt_gui::slot_open() {
#ifndef QT_NO_FILEDIALOG
	QString smilfilename =
		QFileDialog::getOpenFileName(
				 ".", // Initial dir
				 gettext("SMIL files (*.smil *.smi);; All files (*.smil *.smi *.mms *.grins);; Any file (*)"), // file types
				 this,
				 gettext("open file dialog"),
				 gettext("Double Click a file to open")
				 );
	if (openSMILfile(smilfilename, IO_ReadOnly))
		slot_play();
#else	/*QT_NO_FILEDIALOG*/	
	if (m_fileselector == NULL) {
		QString mimeTypes("application/smil;");
		m_fileselector = new FileSelector(mimeTypes, NULL,
						  "slot_open", false);
		m_fileselector->resize(240, 280);
	} else {
		m_fileselector->reread();
	}
	QObject::connect(m_fileselector, SIGNAL(fileSelected(const DocLnk&)),
			 this, SLOT(slot_file_selected(const DocLnk&)));
	QObject::connect(m_fileselector, SIGNAL(closeMe()), 
			 this, SLOT(slot_close_fileselector()));
	m_fileselector->show();
#endif	/*QT_NO_FILEDIALOG*/
}


void
qt_gui::setDocument(const QString& smilfilename) {
#ifdef	QT_NO_FILEDIALOG	/* Assume embedded Qt */
	if (openSMILfile(smilfilename, IO_ReadOnly))
		slot_play();
#endif/*QT_NO_FILEDIALOG*/
}

void
qt_gui::slot_file_selected(const DocLnk& selected_file) {
#ifdef	QT_NO_FILEDIALOG	/* Assume embedded Qt */
	QString* smilfilepointer = new QString(selected_file.file());
	QString smilfilename = *smilfilepointer;
	delete smilfilepointer;
	m_fileselector->hide();
	if (openSMILfile(smilfilename, IO_ReadOnly))
		slot_play();
#endif/*QT_NO_FILEDIALOG*/
}

void
qt_gui::slot_close_fileselector()