xref: /dports/astro/celestia/celestia-1.6.1/src/celestia/gtk/actions.cpp

/*
 *  Celestia GTK+ Front-End
 *  Copyright (C) 2005 Pat Suwalski <pat@suwalski.net>
 *
 *  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.
 *
 *  $Id: actions.cpp,v 1.17 2008-01-25 01:05:14 suwalski Exp $
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /* HAVE_CONFIG_H */

#include <cstring>
#include <fstream>
#include <gtk/gtk.h>

#ifdef GNOME
#include <gconf/gconf-client.h>
#endif /* GNOME */

#include <celengine/body.h>
#include <celengine/gl.h>
#include <celengine/glext.h>
#include <celengine/simulation.h>
#include <celengine/cmdparser.h>
#include <celengine/render.h>
#include <celestia/celestiacore.h>
#include <celestia/imagecapture.h>
#include <celestia/url.h>
#include <celutil/filetype.h>
#ifdef THEORA
#include <celestia/oggtheoracapture.h>
#endif

#include "actions.h"
#include "common.h"
#include "dialog-eclipse.h"
#include "dialog-goto.h"
#include "dialog-options.h"
#include "dialog-solar.h"
#include "dialog-star.h"
#include "dialog-time.h"
#include "dialog-tour.h"

#ifdef GNOME
#include "settings-gconf.h"
#else
#include "settings-file.h"
#endif /* GNOME */


/* Declarations: Action Helpers */
static void openScript(const char* filename, AppData* app);
static void captureImage(const char* filename, AppData* app);
#ifdef THEORA
static void captureMovie(const char* filename, int aspect, float fps, float quality, AppData* app);
#endif
static void textInfoDialog(const char *txt, const char *title, AppData* app);
static void setRenderFlag(AppData* a, int flag, gboolean state);
static void setOrbitMask(AppData* a, int mask, gboolean state);
static void setLabelMode(AppData* a, int mode, gboolean state);


/* File -> Copy URL */
void actionCopyURL(GtkAction*, AppData* app)
{
	GtkClipboard* cb = gtk_clipboard_get(GDK_SELECTION_CLIPBOARD);
	CelestiaState appState;
	appState.captureState(app->core);
	Url url(appState, Url::CurrentVersion);
	gtk_clipboard_set_text(cb, url.getAsString().c_str(), -1);
}


/* File -> Open URL */
void actionOpenURL(GtkAction*, AppData* app)
{
	GtkWidget* dialog = gtk_dialog_new_with_buttons("Enter cel:// URL",
	                                                GTK_WINDOW(app->mainWindow),
	                                                GTK_DIALOG_MODAL,
	                                                GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
	                                                GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
	                                                NULL);

	/* Create a new entry box with default text, all selected */
	GtkWidget* entry = gtk_entry_new();
	gtk_entry_set_width_chars(GTK_ENTRY(entry), 80);
	gtk_entry_set_text(GTK_ENTRY(entry), "cel://");
	gtk_editable_select_region(GTK_EDITABLE(entry), 0, -1);

	gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), entry, TRUE, TRUE, CELSPACING);
	gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT);
	gtk_widget_show_all(dialog);

	if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT)
		app->core->goToUrl(gtk_entry_get_text(GTK_ENTRY(entry)));

	gtk_widget_destroy(dialog);
}


/* File -> Open Script... */
void actionOpenScript(GtkAction*, AppData* app)
{
	GtkWidget* fs = gtk_file_chooser_dialog_new("Open Script.",
	                                            GTK_WINDOW(app->mainWindow),
	                                            GTK_FILE_CHOOSER_ACTION_OPEN,
	                                            GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
	                                            GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
	                                            NULL);

	#if GTK_CHECK_VERSION(2, 7, 0)
	gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(fs), TRUE);
	#endif /* GTK_CHECK_VERSION */

	gtk_dialog_set_default_response(GTK_DIALOG(fs), GTK_RESPONSE_ACCEPT);
	gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(fs), g_get_home_dir());

	GtkFileFilter* filter = gtk_file_filter_new();
	gtk_file_filter_set_name(filter, "Celestia Scripts");

	gtk_file_filter_add_pattern(filter, "*.cel");

	#ifdef CELX
	gtk_file_filter_add_pattern(filter, "*.celx");
	gtk_file_filter_add_pattern(filter, "*.clx");
	#endif /* CELX */

	gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(fs), filter);

	if (gtk_dialog_run(GTK_DIALOG(fs)) == GTK_RESPONSE_ACCEPT)
	{
		char* filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(fs));
		openScript(filename, app);
		g_free(filename);
	}

	gtk_widget_destroy(fs);
}


/* File -> Capture Image... */
void actionCaptureImage(GtkAction*, AppData* app)
{
	GtkWidget* fs = gtk_file_chooser_dialog_new("Save Image to File",
	                                            GTK_WINDOW(app->mainWindow),
	                                            GTK_FILE_CHOOSER_ACTION_SAVE,
	                                            GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
	                                            GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
	                                            NULL);

	GtkFileFilter* filter = gtk_file_filter_new();
	gtk_file_filter_set_name(filter, "PNG and JPEG Images");
	gtk_file_filter_add_pattern(filter, "*.jpeg");
	gtk_file_filter_add_pattern(filter, "*.jpg");
	gtk_file_filter_add_pattern(filter, "*.png");
	gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(fs), filter);

	#if GTK_CHECK_VERSION(2, 7, 0)
	gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(fs), TRUE);
	#endif /* GTK_CHECK_VERSION */

	gtk_dialog_set_default_response(GTK_DIALOG(fs), GTK_RESPONSE_ACCEPT);
	gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(fs), g_get_home_dir());

	if (gtk_dialog_run(GTK_DIALOG(fs)) == GTK_RESPONSE_ACCEPT)
	{
		char* filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(fs));
		gtk_widget_destroy(fs);
		for (int i=0; i < 10 && gtk_events_pending ();i++)
			gtk_main_iteration ();
		captureImage(filename, app);
		g_free(filename);
	}
	else
	{
		gtk_widget_destroy(fs);
	}
}

/* File -> Capture Movie... */
void actionCaptureMovie(GtkAction*, AppData* app)
{
#ifdef THEORA
	// TODO: The menu item should be disable so that the user doesn't even
	// have the opportunity to record two movies simultaneously; the only
	// thing missing to make this happen is notification when recording
	// is complete.
	if (app->core->isCaptureActive())
	{
		GtkWidget* errBox = gtk_message_dialog_new(GTK_WINDOW(app->mainWindow),
							   GTK_DIALOG_DESTROY_WITH_PARENT,
							   GTK_MESSAGE_ERROR,
							   GTK_BUTTONS_OK,
							   "Stop current movie capture before starting another one.");
		gtk_dialog_run(GTK_DIALOG(errBox));
		gtk_widget_destroy(errBox);
		return;
	}

	GtkWidget* fs = gtk_file_chooser_dialog_new("Save Ogg Theora Movie to File",
	                                            GTK_WINDOW(app->mainWindow),
	                                            GTK_FILE_CHOOSER_ACTION_SAVE,
	                                            GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
	                                            GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
	                                            NULL);

	GtkFileFilter* filter = gtk_file_filter_new();
	gtk_file_filter_set_name(filter, "Ogg Files");
	gtk_file_filter_add_pattern(filter, "*.ogg");
	gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(fs), filter);

	#if GTK_CHECK_VERSION(2, 7, 0)
	gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(fs), TRUE);
	#endif /* GTK_CHECK_VERSION */

	gtk_dialog_set_default_response(GTK_DIALOG(fs), GTK_RESPONSE_ACCEPT);
	gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(fs), g_get_home_dir());

	GtkWidget* hbox = gtk_hbox_new(FALSE, CELSPACING);
	gtk_container_set_border_width(GTK_CONTAINER(hbox), CELSPACING);

	GtkWidget* rlabel = gtk_label_new("Aspect Ratio:");
	gtk_box_pack_start(GTK_BOX(hbox), rlabel, TRUE, TRUE, 0);

	GtkWidget* aspectmenubox = gtk_combo_box_new_text();
	gtk_combo_box_append_text(GTK_COMBO_BOX(aspectmenubox), "1:1");
	gtk_combo_box_append_text(GTK_COMBO_BOX(aspectmenubox), "4:3");
	gtk_combo_box_append_text(GTK_COMBO_BOX(aspectmenubox), "16:9");
	gtk_combo_box_append_text(GTK_COMBO_BOX(aspectmenubox), "Display");
	gtk_combo_box_set_active(GTK_COMBO_BOX(aspectmenubox), 0);
	gtk_box_pack_start(GTK_BOX(hbox), aspectmenubox, FALSE, FALSE, 0);

	GtkWidget* flabel = gtk_label_new("Frame Rate:");
	gtk_box_pack_start(GTK_BOX(hbox), flabel, TRUE, TRUE, 0);

	GtkWidget* fpsspin = gtk_spin_button_new_with_range(5.0, 30.0, 0.01);
	gtk_box_pack_start(GTK_BOX(hbox), fpsspin, TRUE, TRUE, 0);
	gtk_spin_button_set_value(GTK_SPIN_BUTTON(fpsspin), 12.0);
	gtk_spin_button_set_increments(GTK_SPIN_BUTTON(fpsspin), 0.01, 1.0);

	GtkWidget* qlabel = gtk_label_new("Video Quality:");
	gtk_box_pack_start(GTK_BOX(hbox), qlabel, TRUE, TRUE, 0);

	GtkWidget* qspin = gtk_spin_button_new_with_range(0.0, 10.0, 1.0);
	gtk_box_pack_start(GTK_BOX(hbox), qspin, TRUE, TRUE, 0);
	gtk_spin_button_set_value(GTK_SPIN_BUTTON(qspin), 10.0);

	gtk_widget_show_all(hbox);
	gtk_file_chooser_set_extra_widget(GTK_FILE_CHOOSER(fs), hbox);

	if (gtk_dialog_run(GTK_DIALOG(fs)) == GTK_RESPONSE_ACCEPT)
	{
		char* filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(fs));
		int aspect = gtk_combo_box_get_active(GTK_COMBO_BOX(aspectmenubox));
		double fps = gtk_spin_button_get_value(GTK_SPIN_BUTTON(fpsspin));
		double quality = gtk_spin_button_get_value(GTK_SPIN_BUTTON(qspin));

		gtk_widget_destroy(fs);
		for (int i=0; i < 10 && gtk_events_pending ();i++)
			gtk_main_iteration ();
		captureMovie(filename, aspect, fps, quality,  app);
		g_free(filename);
	}
	else
	{
		gtk_widget_destroy(fs);
	}
#else
	GtkWidget* errBox = gtk_message_dialog_new(GTK_WINDOW(app->mainWindow),
						   GTK_DIALOG_DESTROY_WITH_PARENT,
						   GTK_MESSAGE_ERROR,
						   GTK_BUTTONS_OK,
						   "Movie support was not included. To use re-build with --enable-theora.");
	gtk_dialog_run(GTK_DIALOG(errBox));
	gtk_widget_destroy(errBox);
#endif
}


void actionQuit(GtkAction*, AppData* app)
{
	#ifdef GNOME
	saveSettingsGConf(app);
	#else
	saveSettingsFile(app);
	#endif /* GNOME */

	gtk_main_quit();
}


void actionSelectSol(GtkAction*, AppData* app)
{
	app->core->charEntered('H');
}


void actionTourGuide(GtkAction*, AppData* app)
{
	dialogTourGuide(app);
}


void actionSearchObject(GtkAction*, AppData* app)
{
	GtkWidget* dialog = gtk_dialog_new_with_buttons("Select Object",
	                                                GTK_WINDOW(app->mainWindow),
	                                                GTK_DIALOG_DESTROY_WITH_PARENT,
	                                                GTK_STOCK_OK, GTK_RESPONSE_OK,
	                                                GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
	                                                NULL);

	GtkWidget* box = gtk_hbox_new(FALSE, CELSPACING);
	gtk_container_set_border_width(GTK_CONTAINER(box), CELSPACING);
	gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), box, TRUE, TRUE, 0);

	GtkWidget* label = gtk_label_new("Object name");
	gtk_box_pack_start(GTK_BOX(box), label, TRUE, TRUE, 0);

	GtkWidget* entry = gtk_entry_new();
	gtk_box_pack_start(GTK_BOX(box), entry, TRUE, TRUE, 0);

	gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_OK);
	gtk_widget_show_all(GTK_WIDGET(dialog));

	if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_OK)
	{
		const gchar* name = gtk_entry_get_text(GTK_ENTRY(entry));
		if (name != NULL)
		{
			Selection sel = app->simulation->findObject(name);
			if (!sel.empty())
				app->simulation->setSelection(sel);
		}
	}

	gtk_widget_destroy(GTK_WIDGET(dialog));
}


void actionGotoObject(GtkAction*, AppData* app)
{
	dialogGotoObject(app);
}


void actionCenterSelection(GtkAction*, AppData* app)
{
	app->core->charEntered('c');
}


void actionGotoSelection(GtkAction*, AppData* app)
{
	app->core->charEntered('G');
}


void actionFollowSelection(GtkAction*, AppData* app)
{
	app->core->charEntered('F');
}


void actionSyncSelection(GtkAction*, AppData* app)
{
	app->core->charEntered('Y');
}


void actionTrackSelection(GtkAction*, AppData* app)
{
	app->core->charEntered('T');
}


void actionSystemBrowser(GtkAction*, AppData* app)
{
	dialogSolarBrowser(app);
}


void actionStarBrowser(GtkAction*, AppData* app)
{
	dialogStarBrowser(app);
}


void actionEclipseFinder(GtkAction*, AppData* app)
{
	dialogEclipseFinder(app);
}


void actionTimeFaster(GtkAction*, AppData* app)
{
	app->core->charEntered('L');
}


void actionTimeSlower(GtkAction*, AppData* app)
{
	app->core->charEntered('K');
}


void actionTimeFreeze(GtkAction*, AppData* app)
{
	app->core->charEntered(' ');
}


void actionTimeReal(GtkAction*, AppData* app)
{
	app->core->charEntered('\\');
}


void actionTimeReverse(GtkAction*, AppData* app)
{
	app->core->charEntered('J');
}


void actionTimeSet(GtkAction*, AppData* app)
{
	dialogSetTime(app);
}


void actionTimeLocal(GtkAction* action, AppData* app)
{
	app->showLocalTime = gtk_toggle_action_get_active(GTK_TOGGLE_ACTION(action));
	updateTimeZone(app, app->showLocalTime);

	#ifdef GNOME
	gconf_client_set_bool(app->client, "/apps/celestia/showLocalTime", app->showLocalTime, NULL);
	#endif /* GNOME */
}


void actionViewerSize(GtkAction*, AppData* app)
{
	GtkWidget* dialog;
	int newX, currentX, currentY, winX, winY, screenX, i = 1, position = -1;
	char res[32];

	screenX = gdk_screen_get_width(gdk_screen_get_default());
	currentX = app->glArea->allocation.width;
	currentY = app->glArea->allocation.height;

	dialog = gtk_dialog_new_with_buttons("Set Viewer Size...",
	                                     GTK_WINDOW(app->mainWindow),
	                                     GTK_DIALOG_DESTROY_WITH_PARENT,
	                                     GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
	                                     GTK_STOCK_OK, GTK_RESPONSE_OK,
	                                     NULL);

	GtkWidget* vbox = gtk_vbox_new(FALSE, CELSPACING);
	gtk_container_set_border_width(GTK_CONTAINER(vbox), CELSPACING);

	GtkWidget* label = gtk_label_new("Dimensions for Main Window:");
	gtk_box_pack_start(GTK_BOX(vbox), label, TRUE, TRUE, 0);

	GtkWidget* menubox = gtk_combo_box_new_text();
	gtk_box_pack_start(GTK_BOX(vbox), menubox, FALSE, FALSE, 0);

	gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), vbox, TRUE, TRUE, 0);

	while (resolutions[i] != -1)
	{
		if (position == -1 && resolutions[i-1] < currentX && resolutions[i] >= currentX)
		{
			sprintf(res, "%d x %d (current)", currentX, currentY);
			position = i - 1;
		}
		else if (resolutions[i] < screenX)
		{
			sprintf(res, "%d x %d", resolutions[i], int(0.75 * resolutions[i]));
			i++;
		}
		else
			break;

		gtk_combo_box_append_text(GTK_COMBO_BOX(menubox), res);
	}

	gtk_combo_box_set_active(GTK_COMBO_BOX(menubox), position);

	gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_OK);
	gtk_widget_show_all(dialog);

	if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_OK)
	{
		int active = gtk_combo_box_get_active(GTK_COMBO_BOX(menubox));

		if (active > -1 && active != position)
		{
			/* Adjust for default entry */
			if (active > position) active--;

			newX = resolutions[active + 1];
			gtk_window_get_size(GTK_WINDOW(app->mainWindow), &winX, &winY);

			/* Resizing takes into account border, titlebar, and menubar
			   sizes. Without them only an allocation can be requested */
			gtk_window_resize(GTK_WINDOW(app->mainWindow), newX + winX - currentX, int(0.75 * newX) + winY - currentY);
		}
	}

	gtk_widget_destroy(GTK_WIDGET(dialog));
}


void actionFullScreen(GtkAction* action, AppData* app)
{
	int positionX, positionY;
	app->fullScreen = gtk_toggle_action_get_active(GTK_TOGGLE_ACTION(action));

	if (app->fullScreen)
	{
		/* Save size/position, so original numbers are available for prefs */
		g_object_set_data(G_OBJECT(app->mainWindow), "sizeX", GINT_TO_POINTER(app->glArea->allocation.width));
		g_object_set_data(G_OBJECT(app->mainWindow), "sizeY", GINT_TO_POINTER(app->glArea->allocation.height));
		gtk_window_get_position(GTK_WINDOW(app->mainWindow), &positionX, &positionY);
		g_object_set_data(G_OBJECT(app->mainWindow), "positionX", GINT_TO_POINTER(positionX));
		g_object_set_data(G_OBJECT(app->mainWindow), "positionY", GINT_TO_POINTER(positionY));

		gtk_window_fullscreen(GTK_WINDOW(app->mainWindow));
	}
	else
		gtk_window_unfullscreen(GTK_WINDOW(app->mainWindow));

	/* Enable/Disable the Viewer Size action */
	gtk_action_set_sensitive(gtk_action_group_get_action(app->agMain, "ViewerSize"), !app->fullScreen);

	#ifdef GNOME
	gconf_client_set_bool(app->client, "/apps/celestia/fullScreen", app->fullScreen, NULL);
	#endif
}


void actionViewOptions(GtkAction*, AppData* app)
{
	dialogViewOptions(app);
}


void actionStarsMore(GtkAction*, AppData* app)
{
	app->core->charEntered(']');

	#ifdef GNOME
	gconf_client_set_float(app->client, "/apps/celestia/visualMagnitude", app->simulation->getFaintestVisible(), NULL);
	#endif
}


void actionStarsFewer(GtkAction*, AppData* app)
{
	app->core->charEntered('[');

	#ifdef GNOME
	gconf_client_set_float(app->client, "/apps/celestia/visualMagnitude", app->simulation->getFaintestVisible(), NULL);
	#endif
}


void actionVideoSync(GtkToggleAction* action, AppData* app)
{
	app->renderer->setVideoSync(gtk_toggle_action_get_active(action));

	#ifdef GNOME
	gconf_client_set_bool(app->client, "/apps/celestia/videoSync", app->renderer->getVideoSync(), NULL);
	#endif
}


void actionMenuBarVisible(GtkToggleAction* action, AppData* app)
{
	g_object_set(G_OBJECT(app->mainMenu), "visible", gtk_toggle_action_get_active(action), NULL);
}


void actionMultiSplitH(GtkAction*, AppData* app)
{
	app->core->splitView(View::HorizontalSplit);
}


void actionMultiSplitV(GtkAction*, AppData* app)
{
	app->core->splitView(View::VerticalSplit);
}


void actionMultiCycle(GtkAction*, AppData* app)
{
	/* Pass a Tab character */
	app->core->charEntered('\011');
}


void actionMultiDelete(GtkAction*, AppData* app)
{
	app->core->deleteView();
}


void actionMultiSingle(GtkAction*, AppData* app)
{
	app->core->singleView();
}


void actionMultiShowFrames(GtkToggleAction* action, AppData* app)
{
	app->core->setFramesVisible(gtk_toggle_action_get_active(action));
}


void actionMultiShowActive(GtkToggleAction* action, AppData* app)
{
	app->core->setActiveFrameVisible(gtk_toggle_action_get_active(action));
}


void actionMultiSyncTime(GtkToggleAction* action, AppData* app)
{
	app->simulation->setSyncTime(gtk_toggle_action_get_active(action));
}


void actionRunDemo(GtkAction*, AppData* app)
{
	app->core->charEntered('D');
}


void actionHelpControls(GtkAction*, AppData* app)
{
	char *txt = readFromFile("controls.txt");
	textInfoDialog(txt, "Mouse and Keyboard Controls", app);
	g_free(txt);
}


void actionHelpOpenGL(GtkAction*, AppData* app)
{
	/* Code grabbed from winmain.cpp */
	char* vendor = (char*) glGetString(GL_VENDOR);
	char* render = (char*) glGetString(GL_RENDERER);
	char* version = (char*) glGetString(GL_VERSION);
	char* ext = (char*) glGetString(GL_EXTENSIONS);

	string s;
	s = "Vendor: ";
	if (vendor != NULL)
		s += vendor;
	s += "\n";

	s += "Renderer: ";
	if (render != NULL)
		s += render;
	s += "\n";

	s += "Version: ";
	if (version != NULL)
		s += version;
	s += "\n";

	char buf[100];
	GLint simTextures = 1;
	if (ExtensionSupported("GL_ARB_multitexture"))
		glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &simTextures);
	sprintf(buf, "Max simultaneous textures: %d\n", simTextures);
	s += buf;

	GLint maxTextureSize = 0;
	glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTextureSize);
	sprintf(buf, "Max texture size: %d\n\n", maxTextureSize);
	s += buf;

	s += "Supported Extensions:\n    ";
	if (ext != NULL)
	{
		string extString(ext);
		unsigned int pos = extString.find(' ', 0);
		while (pos != (unsigned int)string::npos)
		{
			extString.replace(pos, 1, "\n    ");
			pos = extString.find(' ', pos + 5);
		}
		s += extString;
	}

	textInfoDialog(s.c_str(), "Open GL Info", app);
}


void actionHelpAbout(GtkAction*, AppData* app)
{
	const gchar* authors[] = {
		"Chris Laurel <claurel@shatters.net>",
		"Clint Weisbrod <cweisbrod@cogeco.ca>",
		"Fridger Schrempp <fridger.schrempp@desy.de>",
		"Bob Ippolito <bob@redivi.com>",
		"Christophe Teyssier <chris@teyssier.org>",
		"Hank Ramsey <hramsey@users.sourceforce.net>",
		"Grant Hutchison <grantcelestia@xemaps.com>",
		"Pat Suwalski <pat@suwalski.net>",
		"Toti <>",
		"Da-Woon Jung <dirkpitt2050@users.sf.net>",
		"Vincent Giangiulio <vince.gian@free.fr>",
		NULL
    };

	GdkPixbuf *logo = gdk_pixbuf_new_from_file ("celestia-logo.png", NULL);

	gtk_show_about_dialog(GTK_WINDOW(app->mainWindow),
	                     "name", "Celestia",
	                     "version", VERSION,
	                     "copyright", "Copyright \xc2\xa9 2001-2011 Celestia Development Team",
	                     "comments", FRONTEND " Front-End",
	                     "website", "http://celestia.sf.net",
	                     "authors", authors,
	                     "license", readFromFile("COPYING"),
	                     "logo", logo,
	                     NULL);
	gdk_pixbuf_unref(logo);
}


void actionVerbosity(GtkRadioAction* action, GtkRadioAction*, AppData* app)
{
	int value = gtk_radio_action_get_current_value(action);
	app->core->setHudDetail(value);

	#ifdef GNOME
	gconf_client_set_int(app->client, "/apps/celestia/verbosity", value, NULL);
	#endif
}


void actionStarStyle(GtkRadioAction* action, GtkRadioAction*, AppData* app)
{
	int value = gtk_radio_action_get_current_value(action);
	app->renderer->setStarStyle((Renderer::StarStyle)value);

	#ifdef GNOME
	gconf_client_set_int(app->client, "/apps/celestia/starStyle", value, NULL);
	#endif
}


void actionAmbientLight(GtkRadioAction* action, GtkRadioAction*, AppData* app)
{
	float value = amLevels[gtk_radio_action_get_current_value(action)];
	app->renderer->setAmbientLightLevel(value);

	#ifdef GNOME
	gconf_client_set_float(app->client, "/apps/celestia/ambientLight", value, NULL);
	#endif
}

/* Render-Flag Actions */
void actionRenderAA(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowSmoothLines, gtk_toggle_action_get_active(action));
}


void actionRenderAtmospheres(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowAtmospheres, gtk_toggle_action_get_active(action));
}


void actionRenderAutoMagnitude(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowAutoMag, gtk_toggle_action_get_active(action));
}


void actionRenderCelestialGrid(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowCelestialSphere, gtk_toggle_action_get_active(action));
}


void actionRenderClouds(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowCloudMaps, gtk_toggle_action_get_active(action));
}


void actionRenderCometTails(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowCometTails, gtk_toggle_action_get_active(action));
}


void actionRenderConstellationBoundaries(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowBoundaries, gtk_toggle_action_get_active(action));
}


void actionRenderConstellations(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowDiagrams, gtk_toggle_action_get_active(action));
}


void actionRenderEclipticGrid(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowEclipticGrid, gtk_toggle_action_get_active(action));
}


void actionRenderEclipseShadows(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowEclipseShadows, gtk_toggle_action_get_active(action));
}


void actionRenderGalacticGrid(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowGalacticGrid, gtk_toggle_action_get_active(action));
}


void actionRenderGalaxies(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowGalaxies, gtk_toggle_action_get_active(action));
}


void actionRenderGlobulars(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowGlobulars, gtk_toggle_action_get_active(action));
}


void actionRenderHorizontalGrid(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowHorizonGrid, gtk_toggle_action_get_active(action));
}


void actionRenderMarkers(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowMarkers, gtk_toggle_action_get_active(action));
}


void actionRenderNebulae(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowNebulae, gtk_toggle_action_get_active(action));
}


void actionRenderNightLights(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowNightMaps, gtk_toggle_action_get_active(action));
}


void actionRenderOpenClusters(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowOpenClusters, gtk_toggle_action_get_active(action));
}


void actionRenderOrbits(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowOrbits, gtk_toggle_action_get_active(action));
}


void actionRenderPlanets(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowPlanets, gtk_toggle_action_get_active(action));
}


void actionRenderRingShadows(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowRingShadows, gtk_toggle_action_get_active(action));
}


void actionRenderStars(GtkToggleAction* action, AppData* app)
{
	setRenderFlag(app, Renderer::ShowStars, gtk_toggle_action_get_active(action));
}


void actionOrbitAsteroids(GtkToggleAction* action, AppData* app)
{
	setOrbitMask(app, Body::Asteroid, gtk_toggle_action_get_active(action));
}


void actionOrbitComets(GtkToggleAction* action, AppData* app)
{
	setOrbitMask(app, Body::Comet, gtk_toggle_action_get_active(action));
}


void actionOrbitMoons(GtkToggleAction* action, AppData* app)
{
	setOrbitMask(app, Body::Moon, gtk_toggle_action_get_active(action));
}


void actionOrbitPlanets(GtkToggleAction* action, AppData* app)
{
	setOrbitMask(app, Body::Planet, gtk_toggle_action_get_active(action));
}


void actionOrbitSpacecraft(GtkToggleAction* action, AppData* app)
{
	setOrbitMask(app, Body::Spacecraft, gtk_toggle_action_get_active(action));
}


void actionLabelAsteroids(GtkToggleAction* action, AppData* app)
{
	setLabelMode(app, Renderer::AsteroidLabels, gtk_toggle_action_get_active(action));
}


void actionLabelComets(GtkToggleAction* action, AppData* app)
{
	setLabelMode(app, Renderer::CometLabels, gtk_toggle_action_get_active(action));
}


void actionLabelConstellations(GtkToggleAction* action, AppData* app)
{
	setLabelMode(app, Renderer::ConstellationLabels, gtk_toggle_action_get_active(action));
}


void actionLabelGalaxies(GtkToggleAction* action, AppData* app)
{
	setLabelMode(app, Renderer::GalaxyLabels, gtk_toggle_action_get_active(action));
}


void actionLabelGlobulars(GtkToggleAction* action, AppData* app)
{
	setLabelMode(app, Renderer::GlobularLabels, gtk_toggle_action_get_active(action));
}


void actionLabelLocations(GtkToggleAction* action, AppData* app)
{
	setLabelMode(app, Renderer::LocationLabels, gtk_toggle_action_get_active(action));
}


void actionLabelMoons(GtkToggleAction* action, AppData* app)
{
	setLabelMode(app, Renderer::MoonLabels, gtk_toggle_action_get_active(action));
}


void actionLabelNebulae(GtkToggleAction* action, AppData* app)
{
	setLabelMode(app, Renderer::NebulaLabels, gtk_toggle_action_get_active(action));
}


void actionLabelOpenClusters(GtkToggleAction* action, AppData* app)
{
	setLabelMode(app, Renderer::OpenClusterLabels, gtk_toggle_action_get_active(action));
}


void actionLabelPlanets(GtkToggleAction* action, AppData* app)
{
	setLabelMode(app, Renderer::PlanetLabels, gtk_toggle_action_get_active(action));
}


void actionLabelSpacecraft(GtkToggleAction* action, AppData* app)
{
	setLabelMode(app, Renderer::SpacecraftLabels, gtk_toggle_action_get_active(action));
}


void actionLabelStars(GtkToggleAction* action, AppData* app)
{
	setLabelMode(app, Renderer::StarLabels, gtk_toggle_action_get_active(action));
}


/* Script opening helper called by actionOpenScript() */
static void openScript(const char* filename, AppData* app)
{
	/* Modified From Win32 HandleOpenScript */
	if (filename)
	{
		/* If you got here, a path and file has been specified.
		 * filename contains full path to specified file. */
		ContentType type = DetermineFileType(filename);

		if (type == Content_CelestiaScript)
		{
			app->core->runScript(filename);
		}
		else if (type == Content_CelestiaLegacyScript)
		{
			ifstream scriptfile(filename);
			if (!scriptfile.good())
			{
				GtkWidget* errBox = gtk_message_dialog_new(GTK_WINDOW(app->mainWindow),
				                                           GTK_DIALOG_DESTROY_WITH_PARENT,
				                                           GTK_MESSAGE_ERROR,
				                                           GTK_BUTTONS_OK,
				                                           "Error opening script file.");
				gtk_dialog_run(GTK_DIALOG(errBox));
				gtk_widget_destroy(errBox);
			}
			else
			{
				CommandParser parser(scriptfile);
				CommandSequence* script = parser.parse();
				if (script == NULL)
				{
					const vector<string>* errors = parser.getErrors();
					const char* errorMsg = "";
					if (errors->size() > 0)
						errorMsg = (*errors)[0].c_str();
					GtkWidget* errBox = gtk_message_dialog_new(GTK_WINDOW(app->mainWindow),
					                                           GTK_DIALOG_DESTROY_WITH_PARENT,
					                                           GTK_MESSAGE_ERROR,
					                                           GTK_BUTTONS_OK, "%s",
					                                           errorMsg);
					gtk_dialog_run(GTK_DIALOG(errBox));
					gtk_widget_destroy(errBox);
				}
				else
				{
					/* Cancel any running script */
					app->core->cancelScript();
					app->core->runScript(script);
				}
			}
		}
		else
		{
			GtkWidget* errBox = gtk_message_dialog_new(GTK_WINDOW(app->mainWindow),
			                                           GTK_DIALOG_DESTROY_WITH_PARENT,
			                                           GTK_MESSAGE_ERROR,
			                                           GTK_BUTTONS_OK,
			                                           "Bad File Type. Use *.(cel|celx|clx).");
			gtk_dialog_run(GTK_DIALOG(errBox));
			gtk_widget_destroy(errBox);
		}
	}
}


/* Image capturing helper called by actionCaptureImage() */
static void captureImage(const char* filename, AppData* app)
{
	/* Get the dimensions of the current viewport */
	int viewport[4];
	glGetIntegerv(GL_VIEWPORT, viewport);

	bool success = false;
	ContentType type = DetermineFileType(filename);
	if (type == Content_Unknown)
	{
		GtkWidget* errBox = gtk_message_dialog_new(GTK_WINDOW(app->mainWindow),
		                                           GTK_DIALOG_DESTROY_WITH_PARENT,
		                                           GTK_MESSAGE_ERROR,
		                                           GTK_BUTTONS_OK,
		                                           "Unable to determine image file type from name, please use a name ending in '.jpg' or '.png'.");
		gtk_dialog_run(GTK_DIALOG(errBox));
		gtk_widget_destroy(errBox);
		return;
	}
	else if (type == Content_JPEG)
	{
		success = CaptureGLBufferToJPEG(filename,
		                                viewport[0], viewport[1],
		                                viewport[2], viewport[3]);
	}
	else if (type == Content_PNG)
	{
		success = CaptureGLBufferToPNG(filename,
		                               viewport[0], viewport[1],
		                               viewport[2], viewport[3]);
	}
	else
	{
		GtkWidget* errBox = gtk_message_dialog_new(GTK_WINDOW(app->mainWindow),
		                                           GTK_DIALOG_DESTROY_WITH_PARENT,
		                                           GTK_MESSAGE_ERROR,
		                                           GTK_BUTTONS_OK,
		                                           "Currently screen capturing to only JPEG or PNG files is supported.");
		gtk_dialog_run(GTK_DIALOG(errBox));
		gtk_widget_destroy(errBox);
		return;
	}

	if (!success)
	{
		GtkWidget* errBox = gtk_message_dialog_new(GTK_WINDOW(app->mainWindow),
		                                           GTK_DIALOG_DESTROY_WITH_PARENT,
		                                           GTK_MESSAGE_ERROR,
		                                           GTK_BUTTONS_OK,
		                                           "Error writing captured image.");
		gtk_dialog_run(GTK_DIALOG(errBox));
		gtk_widget_destroy(errBox);
	}
}

/* Image capturing helper called by actionCaptureImage() */
#ifdef THEORA
static void captureMovie(const char* filename, int aspect, float fps, float quality, AppData* app)
{
	/* Get the dimensions of the current viewport */
	int viewport[4];
	glGetIntegerv(GL_VIEWPORT, viewport);

	MovieCapture* movieCapture = new OggTheoraCapture();
	switch (aspect)
	{
	case 0:
		movieCapture->setAspectRatio(1, 1);
		break;
	case 1:
		movieCapture->setAspectRatio(4, 3);
		break;
	case 2:
		movieCapture->setAspectRatio(16, 9);
		break;
	default:
		movieCapture->setAspectRatio(viewport[2], viewport[3]);
		break;
	}
	movieCapture->setQuality(quality);

	bool success = movieCapture->start(filename, viewport[2], viewport[3], fps);
	if (success)
		app->core->initMovieCapture(movieCapture);
	else
	{
		delete movieCapture;

		GtkWidget* errBox = gtk_message_dialog_new(GTK_WINDOW(app->mainWindow),
		                                           GTK_DIALOG_DESTROY_WITH_PARENT,
		                                           GTK_MESSAGE_ERROR,
		                                           GTK_BUTTONS_OK,
		                                           "Error initializing movie capture.");
		gtk_dialog_run(GTK_DIALOG(errBox));
		gtk_widget_destroy(errBox);
	}
}
#endif

/* Runs a dialog that displays text; should be replaced at some point with
   a more elegant solution. */
static void textInfoDialog(const char *txt, const char *title, AppData* app)
{
	/* I would use a gnome_message_box dialog for this, except they don't seem
	 * to notice that the texts are so big that they create huge windows, and
	 * would work better with a scrolled window. Deon */
	GtkWidget* dialog = gtk_dialog_new_with_buttons(title,
	                                                GTK_WINDOW(app->mainWindow),
	                                                GTK_DIALOG_DESTROY_WITH_PARENT,
	                                                GTK_STOCK_OK, GTK_RESPONSE_OK,
	                                                NULL);

	GtkWidget* scrolled_window = gtk_scrolled_window_new (NULL, NULL);
	gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), scrolled_window, TRUE, TRUE, 0);
	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW (scrolled_window),
	                               GTK_POLICY_AUTOMATIC,
	                               GTK_POLICY_AUTOMATIC);
	gtk_widget_show(scrolled_window);

	GtkWidget *text = gtk_label_new(txt);
	gtk_widget_modify_font(text, pango_font_description_from_string("mono"));
	gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(scrolled_window), GTK_WIDGET(text));
	gtk_widget_show(text);

	gtk_window_set_default_size(GTK_WINDOW(dialog), 600, 400); /* Absolute Size, urghhh */
	gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_OK);

	gtk_dialog_run(GTK_DIALOG(dialog));
	gtk_widget_destroy(dialog);
}


/* Calculates and sets the render-flag int */
static void setRenderFlag(AppData* a, int flag, gboolean state)
{
	int rf = (a->renderer->getRenderFlags() & ~flag) | (state ? flag : 0);
	a->renderer->setRenderFlags(rf);

	#ifdef GNOME
	/* Update GConf */
	gcSetRenderFlag(flag, state, a->client);
	#endif /* GNOME */
}


/* Calculates and sets the orbit-mask int */
static void setOrbitMask(AppData* a, int mask, gboolean state)
{
	int om = (a->renderer->getOrbitMask() & ~mask) | (state ? mask : 0);
	a->renderer->setOrbitMask(om);

	#ifdef GNOME
	/* Update GConf */
	gcSetOrbitMask(mask, state, a->client);
	#endif /* GNOME */
}


/* Calculates and sets the label-mode int */
static void setLabelMode(AppData* a, int mode, gboolean state)
{
	int lm = (a->renderer->getLabelMode() & ~mode) | (state ? mode : 0);
	a->renderer->setLabelMode(lm);

	#ifdef GNOME
	/* Update GConf */
	gcSetLabelMode(mode, state, a->client);
	#endif /* GNOME */
}


/* Synchronizes the Label Actions with the state of the core */
void resyncLabelActions(AppData* app)
{
	GtkAction* action;
	const char* actionName;

	/* Simply for readability */
	int f = app->renderer->getLabelMode();

	for (int i = Renderer::StarLabels; i <= Renderer::GlobularLabels; i *= 2)
	{
		switch (i)
		{
			case Renderer::StarLabels: actionName = "LabelStars"; break;
			case Renderer::PlanetLabels: actionName = "LabelPlanets"; break;
			case Renderer::MoonLabels: actionName = "LabelMoons"; break;
			case Renderer::ConstellationLabels: actionName = "LabelConstellations"; break;
			case Renderer::GalaxyLabels: actionName = "LabelGalaxies"; break;
			case Renderer::AsteroidLabels: actionName = "LabelAsteroids"; break;
			case Renderer::SpacecraftLabels: actionName = "LabelSpacecraft"; break;
			case Renderer::LocationLabels: actionName = "LabelLocations"; break;
			case Renderer::CometLabels: actionName = "LabelComets"; break;
			case Renderer::NebulaLabels: actionName = "LabelNebulae"; break;
			case Renderer::OpenClusterLabels: actionName = "LabelOpenClusters"; break;
			case Renderer::GlobularLabels: actionName = "LabelGlobulars"; break;
			case Renderer::I18nConstellationLabels: /* Not used yet */
			default: actionName = NULL;
		}

		if (actionName != NULL)
		{
			/* Get the action */
			action = gtk_action_group_get_action(app->agLabel, actionName);

			/* The current i anded with the labelMode gives state of flag */
			gtk_toggle_action_set_active(GTK_TOGGLE_ACTION(action), (i & f));
		}
	}
}


/* Synchronizes the Render Actions with the state of the core */
void resyncRenderActions(AppData* app)
{
	GtkAction* action;
	const char* actionName;

	/* Simply for readability */
	int rf = app->renderer->getRenderFlags();

	/* Unlike the other interfaces, which go through each menu item and set
	 * the corresponding renderFlag, we go the other way and set the menu
	 * based on the renderFlag. Last one is ShowEcliptic. */

	for (int i = Renderer::ShowStars; i <= Renderer::ShowEcliptic; i *= 2)
	{
		switch (i)
		{
			case Renderer::ShowStars: actionName = "RenderStars"; break;
			case Renderer::ShowPlanets: actionName = "RenderPlanets"; break;
			case Renderer::ShowGalaxies: actionName = "RenderGalaxies"; break;
			case Renderer::ShowDiagrams: actionName = "RenderConstellations"; break;
			case Renderer::ShowCloudMaps: actionName = "RenderClouds"; break;
			case Renderer::ShowOrbits: actionName = "RenderOrbits"; break;
			case Renderer::ShowCelestialSphere: actionName = "RenderCelestialGrid"; break;
			case Renderer::ShowNightMaps: actionName = "RenderNightLights"; break;
			case Renderer::ShowAtmospheres: actionName = "RenderAtmospheres"; break;
			case Renderer::ShowSmoothLines: actionName = "RenderAA"; break;
			case Renderer::ShowEclipseShadows: actionName = "RenderEclipseShadows"; break;
			case Renderer::ShowStarsAsPoints: actionName = NULL; break; /* Deprecated */
			case Renderer::ShowRingShadows: actionName = "RenderRingShadows"; break;
			case Renderer::ShowBoundaries: actionName = "RenderConstellationBoundaries"; break;
			case Renderer::ShowAutoMag: actionName = "RenderAutoMagnitude"; break;
			case Renderer::ShowCometTails: actionName = "RenderCometTails"; break;
			case Renderer::ShowMarkers: actionName = "RenderMarkers"; break;
			case Renderer::ShowPartialTrajectories: actionName = NULL; break; /* Not useful yet */
			case Renderer::ShowNebulae: actionName = "RenderNebulae"; break;
			case Renderer::ShowOpenClusters: actionName = "RenderOpenClusters"; break;
			case Renderer::ShowGlobulars: actionName = "RenderGlobulars"; break;
			case Renderer::ShowCloudShadows: actionName = NULL; break; /* Not implemented yet */
			case Renderer::ShowGalacticGrid: actionName = "RenderGalacticGrid"; break;
			case Renderer::ShowEclipticGrid: actionName = "RenderEclipticGrid"; break;
			case Renderer::ShowHorizonGrid: actionName = "RenderHorizontalGrid"; break;
			case Renderer::ShowEcliptic: actionName = NULL; break; /* Not implemented yet */
			default: actionName = NULL;
		}

		if (actionName != NULL)
		{
			/* Get the action */
			action = gtk_action_group_get_action(app->agRender, actionName);

			/* The current i anded with the renderFlags gives state of flag */
			gtk_toggle_action_set_active(GTK_TOGGLE_ACTION(action), (i & rf));
		}
	}
}


/* Synchronizes the Orbit Actions with the state of the core */
void resyncOrbitActions(AppData* app)
{
	GtkAction* action;
	const char* actionName;

	/* Simply for readability */
	int om = app->renderer->getOrbitMask();

	for (int i = Body::Planet; i <= Body::Spacecraft; i *= 2)
	{
		switch (i)
		{
			case Body::Planet: actionName = "OrbitPlanets"; break;
			case Body::Moon: actionName = "OrbitMoons"; break;
			case Body::Asteroid: actionName = "OrbitAsteroids"; break;
			case Body::Comet: actionName = "OrbitComets"; break;
			case Body::Spacecraft: actionName = "OrbitSpacecraft"; break;
			default: actionName = NULL;
		}

		if (actionName != NULL)
		{
			/* Get the action */
			action = gtk_action_group_get_action(app->agOrbit, actionName);

			/* The current i anded with the orbitMask gives state of flag */
			gtk_toggle_action_set_active(GTK_TOGGLE_ACTION(action), (i & om));
		}
	}
}


/* Synchronizes the Verbosity Actions with the state of the core */
void resyncVerbosityActions(AppData* app)
{
	GtkAction* action;
	const char* actionName;

	switch (app->core->getHudDetail())
	{
		case 0: actionName = "HudNone"; break;
		case 1: actionName = "HudTerse"; break;
		case 2: actionName = "HudVerbose"; break;
		default: return;
	}

	/* Get the action, set the widget */
	action = gtk_action_group_get_action(app->agVerbosity, actionName);
	gtk_toggle_action_set_active(GTK_TOGGLE_ACTION(action), TRUE);
}


/* Synchronizes the TimeZone Action with the state of the core */
void resyncTimeZoneAction(AppData* app)
{
	/* Get the action, set the widget */
	GtkAction* action = gtk_action_group_get_action(app->agMain, "TimeLocal");
	gtk_toggle_action_set_active(GTK_TOGGLE_ACTION(action), app->showLocalTime);
}


/* Synchronizes the Ambient Light Actions with the state of the core */
void resyncAmbientActions(AppData* app)
{
	GtkAction* action;

	float ambient = app->renderer->getAmbientLightLevel();

	/* Try to be smart about being close to the value of a float */
	if (ambient > amLevels[0] && ambient < (amLevels[1] / 2.0))
		action = gtk_action_group_get_action(app->agAmbient, "AmbientNone");

	else if (ambient < amLevels[1] + ((amLevels[2] - amLevels[1]) / 2.0))
		action = gtk_action_group_get_action(app->agAmbient, "AmbientLow");

	else
		action = gtk_action_group_get_action(app->agAmbient, "AmbientMedium");

	gtk_toggle_action_set_active(GTK_TOGGLE_ACTION(action), TRUE);

	#ifdef GNOME
	/* The action callback only occurs when one of the None/Low/Medium barriers
	 * is surpassed, so an update is forced. */
	gconf_client_set_float(app->client, "/apps/celestia/ambientLight", ambient, NULL);
	#endif
}


/* Synchronizes the Verbosity Actions with the state of the core */
void resyncStarStyleActions(AppData* app)
{
	GtkAction* action;
	const char* actionName;

	switch (app->renderer->getStarStyle())
	{
		case Renderer::FuzzyPointStars: actionName = "StarsFuzzy"; break;
		case Renderer::PointStars: actionName = "StarsPoints"; break;
		case Renderer::ScaledDiscStars: actionName = "StarsDiscs"; break;
		default: return;
	}

	/* Get the action, set the widget */
	action = gtk_action_group_get_action(app->agStarStyle, actionName);
	gtk_toggle_action_set_active(GTK_TOGGLE_ACTION(action), TRUE);
}


/* Placeholder for when galaxy brightness is added as an action */
void resyncGalaxyGainActions(AppData* app)
{
	float gain = Galaxy::getLightGain();

	#ifdef GNOME
	gconf_client_set_float(app->client, "/apps/celestia/galaxyLightGain", gain, NULL);
	#endif
}


/* Synchronizes the Texture Resolution with the state of the core */
void resyncTextureResolutionActions(AppData* app)
{
	int resolution = app->renderer->getResolution();

	#ifdef GNOME
	gconf_client_set_int(app->client, "/apps/celestia/textureResolution", resolution, NULL);
	#endif /* GNOME */
}