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/***************************************************************************
lesson properties dialog page
-----------------------------------------------------------------------
begin : Thu Jun 3 22:03:50 1999
copyright : (C) 1999-2001 Ewald Arnold <kvoctrain@ewald-arnold.de>
(C) 2001 The KDE-EDU team
(C) 2005 Peter Hedlund <peter.hedlund@kdemail.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. *
* *
***************************************************************************/
#include "LessOptPage.h"
#include <kapplication.h>
#include <kinputdialog.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <qcombobox.h>
#include <qpushbutton.h>
#include <qlayout.h>
#include <kvoctraindoc.h>
#define LESS_TAG ". "
LessOptPage::LessOptPage
(
QComboBox *lessons,
kvoctrainDoc *_doc,
QWidget *parent,
const char *name
)
:
LessOptPageForm( parent, name )
{
connect( lessonList, SIGNAL(highlighted(int)), SLOT(slotLessonChosen(int)) );
connect( b_new, SIGNAL(clicked()), SLOT(slotNewLesson()) );
connect( b_modify, SIGNAL(clicked()), SLOT(slotModifyLesson()) );
connect( b_delete, SIGNAL(clicked()), SLOT(slotDeleteLesson()) );
connect( b_cleanup, SIGNAL(clicked()), SLOT(slotCleanup()) );
doc = _doc;
QString str;
for (int i = 1; i < lessons->count(); i++) {
str.setNum (i);
if (i <= 9)
str.insert (0, " ");
lessonList->insertItem (str+LESS_TAG+lessons->text(i));
lessonIndex.push_back(i-1);
}
act_lesson = 0;
if (lessonList->count() != 0)
lessonList->setCurrentItem (act_lesson);
lessonList->setFocus();
b_modify->setEnabled(lessonList->count() != 0);
b_delete->setEnabled(lessonList->count() != 0);
}
void LessOptPage::slotLessonChosen(int index)
{
act_lesson = index;
}
void LessOptPage::slotNewLesson()
{
bool ok;
QString getLesson = KInputDialog::getText(
i18n( "Lesson Description" ), i18n( "Enter lesson description:" ), QString::null, &ok );
if( !ok )
return;
QString str;
int i = lessonList->count()+1;
str.setNum (i);
if (i <= 9)
str.insert (0, " ");
lessonList->insertItem (str+LESS_TAG+getLesson.stripWhiteSpace());
lessonIndex.push_back(-(i-1));
act_lesson = lessonList->count();
lessonList->setCurrentItem (i-1);
b_modify->setEnabled(true);
b_delete->setEnabled(true);
}
void LessOptPage::slotModifyLesson()
{
if (lessonList->count() != 0 && (int) lessonList->count() > act_lesson)
{
QString str = lessonList->text (act_lesson);
int pos = str.find (LESS_TAG);
str.remove (0, pos+strlen (LESS_TAG));
bool ok;
QString getLesson = KInputDialog::getText(
i18n( "Lesson Description" ), i18n( "Enter lesson description:" ), str, &ok );
if( !ok )
return;
QString str2;
str2.setNum (act_lesson+1);
if (act_lesson <= 9)
str2.insert (0, " ");
lessonList->changeItem (str2+LESS_TAG+getLesson.stripWhiteSpace(), act_lesson);
}
}
void LessOptPage::updateListBox(int start)
{
QString str, str2;
for (int i = start; i < (int) lessonList->count(); i++)
{
str = lessonList->text (i);
int pos = str.find (LESS_TAG);
str.remove (0, pos+strlen (LESS_TAG));
str2.setNum (i+1);
if (i <= 9)
str2.insert (0, " ");
lessonList->changeItem (str2+LESS_TAG+str, i);
}
}
void LessOptPage::slotDeleteLesson()
{
int act = act_lesson;
if (lessonList->count() != 0
&& (int) lessonList->count() > act) {
for (int ent = 0; ent < doc->numEntries(); ent++) {
// FIXME: ProgressDlg here?
if (doc->getEntry(ent)->getLesson() == lessonIndex[act_lesson]+1) {
KMessageBox::information(this,
i18n("This lesson could not be deleted\nbecause it is in use."),
kapp->makeStdCaption(i18n("Deleting Lesson")));
return;
}
}
lessonList->removeItem (act);
lessonIndex.erase (lessonIndex.begin() + act);
if ((int) lessonList->count() <= act)
act = lessonList->count()-1;
else
updateListBox(act); // update items after current
if (act >= 0)
lessonList->setCurrentItem (act);
}
b_modify->setEnabled(lessonList->count() != 0);
b_delete->setEnabled(lessonList->count() != 0);
}
void LessOptPage::getLesson (QComboBox *ret_lesson, vector<int> &ret_Index)
{
while (ret_lesson->count() > 1) /* first entry is "no lesson" */
ret_lesson->removeItem (1);
QString str;
for (int i = 0; i < (int) lessonList->count(); i++) {
str = lessonList->text(i);
int pos = str.find (LESS_TAG);
str.remove (0, pos+strlen (LESS_TAG));
ret_lesson->insertItem (str);
}
ret_Index = lessonIndex;
}
void LessOptPage::slotCleanup()
{
vector<bool> used_lesson;
for (int i = 0; i < (int) lessonList->count(); i++)
used_lesson.push_back(false);
for (int i = 0; i < (int) doc->numEntries(); i++) {
int idx = doc->getEntry(i)->getLesson();
if ((int) used_lesson.size() < idx)
used_lesson.resize(idx);
if (idx != 0)
used_lesson[idx-1] = true ;
}
for (int i = used_lesson.size()-1; i >= 0; i--)
if (!used_lesson[i]) {
for (int u = 0; u < (int) lessonIndex.size() ; u++) {
if (lessonIndex[u] == i || lessonIndex[u] < 0) {
act_lesson = i;
slotDeleteLesson();
break;
}
}
}
act_lesson = 0;
lessonList->setCurrentItem (act_lesson);
}
void LessOptPage::cleanUnused (kvoctrainDoc *doc,
const QComboBox * /*lessons*/,
const vector<int> &lessonIndex,
int old_lessons,
vector<int> &lessons_in_query)
{
vector<int> translate_index;
/////////////////////////////////////////////////////
// translate_index contains new index number for each
// old index
for (int i = 0; i <= QMAX (old_lessons, (int) lessonIndex.size()); i++)
translate_index.push_back(0);
// now adjust lesson descriptions to new index
for (int i = 0; i < (int) lessonIndex.size(); i++) {
if (lessonIndex[i] >= 0)
translate_index[lessonIndex[i]+1] = i+1;
}
// now adjust for query selected lessons to new index
for (int i = (int) lessons_in_query.size()-1; i >= 0; i--) {
if (translate_index[lessons_in_query[i]] > 0)
lessons_in_query[i] = translate_index[lessons_in_query[i]];
else
lessons_in_query.erase(lessons_in_query.begin() + i);
}
// only keep remaining lesson member indices
// set lesson index to 0 when not needed any more
// and translate to new index
for (int i = 0; i < doc->numEntries(); i++) {
if (doc->getEntry(i)->getLesson () != 0)
doc->getEntry(i)->setLesson (translate_index[doc->getEntry(i)->getLesson ()]);
}
}
#include "LessOptPage.moc"
|
