editors/sc-ide/widgets/doc_list.cpp

   1 /*
   2     SuperCollider Qt IDE
   3     Copyright (c) 2012 Jakob Leben & Tim Blechmann
   4     http://www.audiosynth.com
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
  19 */
  20
  21 #include "doc_list.hpp"
  22 #include "../core/doc_manager.hpp"
  23
  24 #include <QApplication>
  25 #include <QStyle>
  26
  27 namespace ScIDE {
  28
  29 DocumentListWidget::DocumentListWidget(DocumentManager *manager, QWidget * parent):
  30     QListWidget(parent),
  31     mDocModifiedIcon( QApplication::style()->standardIcon(QStyle::SP_DialogSaveButton) )
  32 {
  33     connect(manager, SIGNAL(opened(Document*, int)), this, SLOT(onOpen(Document*, int)));
  34     connect(manager, SIGNAL(closed(Document*)), this, SLOT(onClose(Document*)));
  35     connect(manager, SIGNAL(saved(Document*)), this, SLOT(onSaved(Document*)));
  36     connect(&mModificationMapper, SIGNAL(mapped(QObject*)),
  37             this, SLOT(onModificationChanged(QObject*)));
  38     connect(this, SIGNAL(itemClicked(QListWidgetItem*)),
  39             this, SLOT(onItemClicked(QListWidgetItem*)));
  40 }
  41
  42 void DocumentListWidget::setCurrent( Document *doc )
  43 {
  44     if(!doc)
  45         setCurrentRow(-1);
  46     else {
  47         Item *itm = itemFor(doc);
  48         if(itm)
  49             setCurrentItem(itm);
  50     }
  51 }
  52
  53 void DocumentListWidget::onOpen( Document *doc, int )
  54 {
  55     addItemFor(doc);
  56 }
  57
  58 void DocumentListWidget::onClose( Document *doc )
  59 {
  60     delete itemFor(doc);
  61 }
  62
  63 void DocumentListWidget::onSaved( Document *doc )
  64 {
  65     Item *item = itemFor(doc);
  66     if(item)
  67         item->setText(doc->title());
  68 }
  69
  70 void DocumentListWidget::onModificationChanged( QObject * obj )
  71 {
  72     Document *doc = qobject_cast<Document*>(obj);
  73     Item *item = itemFor(doc);
  74     if(item)
  75         item->setIcon(
  76             doc->textDocument()->isModified() ?
  77             mDocModifiedIcon : QIcon()
  78         );
  79 }
  80
  81 void DocumentListWidget::onItemClicked(QListWidgetItem* litem)
  82 {
  83     Item *item = itemFor(litem);
  84     if(item)
  85         Q_EMIT( clicked(item->mDoc) );
  86 }
  87
  88 DocumentListWidget::Item * DocumentListWidget::addItemFor( Document *doc )
  89 {
  90     Item *item = new Item(doc, this);
  91
  92     QTextDocument *tdoc = doc->textDocument();
  93
  94     if(tdoc->isModified())
  95         item->setIcon( mDocModifiedIcon );
  96
  97     mModificationMapper.setMapping(tdoc, doc);
  98     connect(tdoc, SIGNAL(modificationChanged(bool)),
  99             &mModificationMapper, SLOT(map()));
 100
 101     return item;
 102 }
 103
 104 DocumentListWidget::Item *DocumentListWidget::itemFor( Document *doc )
 105 {
 106     int c = count();
 107     for(int i = 0; i < c; ++i)
 108     {
 109         Item *itm = itemFor( item(i) );
 110         if(itm && itm->mDoc == doc) return itm;
 111     }
 112     return 0;
 113 }
 114
 115 DocumentListWidget::Item *DocumentListWidget::itemFor( QListWidgetItem *litem )
 116 {
 117     if(litem->type() == QListWidgetItem::UserType)
 118         return static_cast<Item*>(litem);
 119     else
 120         return 0;
 121 }
 122
 123 } // namespace ScIDE