/**
 * \file FormTexinfo.C
 * This file is part of LyX, the document processor.
 * Licence details can be found in the file COPYING.
 *
 * \author Herbert Voss
 *
 * Full author contact details are available in file CREDITS
 * \date 2001-10-01
 */

#include <config.h>
#include <fstream>

#ifdef __GNUG__
#pragma implementation
#endif

#include "xformsBC.h"
#include "FormTexinfo.h"
#include "forms/form_texinfo.h"
#include "Tooltips.h"
#include "gettext.h"
#include "debug.h"
#include "xforms_helpers.h"
#include "support/LAssert.h"
#include FORMS_H_LOCATION


typedef FormCB<ControlTexinfo, FormDB<FD_texinfo> > base_class;
FormTexinfo::FormTexinfo()
	: base_class(_("LaTeX Information")),
	  activeStyle(ControlTexinfo::cls)
{}


void FormTexinfo::build() {
	dialog_.reset(build_texinfo(this));

	updateStyles(ControlTexinfo::cls);

	string const classes_List = _("LaTeX classes|LaTeX styles|BibTeX styles");
	fl_addto_choice(dialog_->choice_classes, classes_List.c_str());

	// set up the tooltips
	string str = _("Shows the installed classses and styles for LaTeX/BibTeX. These classes are only available in LyX if a corresponding LyX layout file exists.");
	tooltips().init(dialog_->choice_classes, str);

	str = _("View full path or only file name.");
	tooltips().init(dialog_->check_fullpath, str);

	str = _("Runs the script \"TexFiles.sh\" to build new file lists.");
	tooltips().init(dialog_->button_rescan, str);

	str = _("Shows the contents of the marked file. Only possible in full path mode.");
	tooltips().init(dialog_->button_view, str);

	str = _("Runs the script \"texhash\" which builds a new LaTeX tree. Needed if you install a new TeX class or style. You need write permissions for the TeX-dirs, often /var/lib/texmf and others.");
	tooltips().init(dialog_->button_texhash, str);
}


ButtonPolicy::SMInput FormTexinfo::input(FL_OBJECT * ob, long) {

	if (ob == dialog_->choice_classes) {
		switch (fl_get_choice(dialog_->choice_classes)) {
		case 1:
			updateStyles(ControlTexinfo::cls);
			break;
		case 2:
			updateStyles(ControlTexinfo::sty);
			break;
		case 3:
		default:
			updateStyles(ControlTexinfo::bst);
		}

	} else if (ob == dialog_->button_rescan) {
		// build new *Files.lst
		controller().rescanStyles();
		updateStyles(activeStyle);

	} else if (ob == dialog_->check_fullpath) {
		setEnabled(dialog_->button_view,
			   fl_get_button(dialog_->check_fullpath));
		updateStyles(activeStyle);

	} else if (ob == dialog_->button_texhash) {
		// makes only sense if the rights are set well for
		// users (/var/lib/texmf/ls-R)
		controller().runTexhash();
		// update files in fact of texhash
		controller().rescanStyles();

	} else if (ob == dialog_->button_view) {
		unsigned int selection = fl_get_browser(dialog_->browser);
		// a valid entry?
		if (selection > 0) {
			controller().viewFile(
				fl_get_browser_line(dialog_->browser,
						    selection));
		}
	}

	return ButtonPolicy::SMI_VALID;
}

void FormTexinfo::updateStyles(ControlTexinfo::texFileSuffix whichStyle)
{
	fl_clear_browser(dialog_->browser);

	bool const withFullPath = fl_get_button(dialog_->check_fullpath);

	string const str =
		controller().getContents(whichStyle, withFullPath);
	fl_add_browser_line(dialog_->browser, str.c_str());

	activeStyle = whichStyle;
}