src/view.cpp

   1 /**
   2  * Copyright (C) 2007 Benjamin C. Meyer
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  17  */
  18
  19 #include "view.h"
  20
  21 #include "iconview.h"
  22 #include "treeview.h"
  23 #include "columnview.h"
  24 #include "history.h"
  25 #include "qfilesystemmodel_p.h"
  26
  27 #include <QtGui/QtGui>
  28
  29 View::View(QWidget *parent) : QStackedWidget(parent), model(0)
  30 {
  31     history = new History(this);
  32     connect(this, SIGNAL(currentFolderChanged(const QModelIndex &)),
  33             history, SLOT(currentChanged(const QModelIndex &)));
  34     connect(history, SIGNAL(goToIndex(const QModelIndex &)),
  35             this, SLOT(setRootIndex(const QModelIndex &)));
  36 }
  37
  38 View::~View()
  39 {}
  40
  41 void View::createViews(QFileSystemModel *model)
  42 {
  43     this->model = model;
  44     IconView *iconView = new IconView(this);
  45     addView(iconView);
  46     TreeView *treeView = new TreeView(this);
  47     addView(treeView);
  48     ColumnView *columnView = new ColumnView(this);
  49     addView(columnView);
  50 }
  51
  52 QModelIndex View::rootIndex() const
  53 {
  54     if (!model)
  55         return QModelIndex();
  56     return currentView()->rootIndex();
  57 }
  58
  59 void View::setCurrentMode(ViewMode mode)
  60 {
  61     if (!views.isEmpty())
  62         setCurrentWidget(views.at((int)mode));
  63 }
  64
  65 View::ViewMode View::currentMode() const
  66 {
  67     if (currentIndex() > 0)
  68         return (ViewMode)(currentIndex());
  69     return Icon;
  70 }
  71
  72 QAbstractItemView *View::currentView() const
  73 {
  74     if (views.isEmpty())
  75         return 0;
  76     return views.at(currentIndex());
  77 }
  78
  79 void View::fileOpen()
  80 {
  81     if (!model)
  82         return;
  83     QModelIndex index = currentView()->currentIndex();
  84     if (!index.isValid())
  85         return;
  86     if (model->hasChildren(index)) {
  87         QMetaObject::invokeMethod(currentView(), "openIndex", Q_ARG(QModelIndex, index));
  88         // TODO root index might change
  89         return;
  90     }
  91
  92     QUrl url = QUrl::fromLocalFile(index.data(QFileSystemModel::FilePathRole).toString());
  93     QDesktopServices::openUrl(url);
  94 }
  95
  96 void View::setRootIndex(const QModelIndex &index)
  97 {
  98     if (!model)
  99         return;
 100     if (rootIndex() == index) {
 101         qWarning() << index << "is the current root";
 102         return;
 103     }
 104
 105     if (!model->hasChildren(index)) {
 106         fileOpen();
 107         return;
 108     }
 109
 110     for (int i = 0; i < views.count(); ++i) {
 111         views.at(i)->setRootIndex(index);
 112     }
 113
 114     emit currentFolderChanged(index);
 115 }
 116
 117 void View::goUp()
 118 {
 119     QAbstractItemView *view = currentView();
 120     if (!view)
 121         return;
 122     QModelIndex current = view->currentIndex();
 123     QModelIndex root = view->rootIndex();
 124     if (current.isValid() && current.parent() != root)
 125         root = current;
 126     root = root.parent();
 127     view->setCurrentIndex(root);
 128     if (view->visualRect(root).isNull())
 129         view->setRootIndex(root);
 130 }
 131
 132 void View::addView(QAbstractItemView *view)
 133 {
 134     views.append(view);
 135     view->setSelectionBehavior(QAbstractItemView::SelectRows);
 136     view->setModel(model);
 137     addWidget(view);
 138
 139     if (!views.isEmpty())
 140         view->setSelectionModel(views.first()->selectionModel());
 141     connect(view, SIGNAL(doubleClicked(const QModelIndex &)),
 142             this, SLOT(fileOpen()));
 143 }