src/dolphincolumnview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz (peter.penz@gmx.at)                  *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (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                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "dolphincolumnview.h"
  21
  22 #include "dolphincontroller.h"
  23 #include "dolphinsettings.h"
  24
  25 #include "dolphin_columnmodesettings.h"
  26
  27 #include <QtGui/QAbstractProxyModel>
  28 #include <QtCore/QPoint>
  29
  30 DolphinColumnView::DolphinColumnView(QWidget* parent, DolphinController* controller) :
  31     QColumnView(parent),
  32     m_controller(controller)
  33 {
  34     Q_ASSERT(controller != 0);
  35
  36     setAcceptDrops(true);
  37     setSelectionBehavior(SelectItems);
  38     setDragDropMode(QAbstractItemView::DragDrop);
  39     setDropIndicatorShown(false);
  40
  41     if (KGlobalSettings::singleClick()) {
  42         connect(this, SIGNAL(clicked(const QModelIndex&)),
  43                 controller, SLOT(triggerItem(const QModelIndex&)));
  44     } else {
  45         connect(this, SIGNAL(doubleClicked(const QModelIndex&)),
  46                 controller, SLOT(triggerItem(const QModelIndex&)));
  47     }
  48     connect(this, SIGNAL(activated(const QModelIndex&)),
  49             controller, SLOT(triggerItem(const QModelIndex&)));
  50     connect(this, SIGNAL(entered(const QModelIndex&)),
  51             controller, SLOT(emitItemEntered(const QModelIndex&)));
  52     connect(this, SIGNAL(viewportEntered()),
  53             controller, SLOT(emitViewportEntered()));
  54     connect(controller, SIGNAL(zoomIn()),
  55             this, SLOT(zoomIn()));
  56     connect(controller, SIGNAL(zoomOut()),
  57             this, SLOT(zoomOut()));
  58
  59     // apply the column mode settings to the widget
  60     const ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings();
  61     Q_ASSERT(settings != 0);
  62
  63     m_viewOptions = QColumnView::viewOptions();
  64
  65     QFont font(settings->fontFamily(), settings->fontSize());
  66     font.setItalic(settings->italicFont());
  67     font.setBold(settings->boldFont());
  68     m_viewOptions.font = font;
  69
  70     updateDecorationSize();
  71 }
  72
  73 DolphinColumnView::~DolphinColumnView()
  74 {
  75 }
  76
  77 QAbstractItemView* DolphinColumnView::createColumn(const QModelIndex& index)
  78 {
  79     QAbstractItemView* view = QColumnView::createColumn(index);
  80     view->setMouseTracking(true);
  81     view->viewport()->setAttribute(Qt::WA_Hover);
  82     return view;
  83 }
  84
  85 QStyleOptionViewItem DolphinColumnView::viewOptions() const
  86 {
  87     return m_viewOptions;
  88 }
  89
  90 void DolphinColumnView::contextMenuEvent(QContextMenuEvent* event)
  91 {
  92     QColumnView::contextMenuEvent(event);
  93     m_controller->triggerContextMenuRequest(event->pos());
  94 }
  95
  96 void DolphinColumnView::mousePressEvent(QMouseEvent* event)
  97 {
  98     m_controller->triggerActivation();
  99     QColumnView::mousePressEvent(event);
 100 }
 101
 102 void DolphinColumnView::dragEnterEvent(QDragEnterEvent* event)
 103 {
 104     if (event->mimeData()->hasUrls()) {
 105         event->acceptProposedAction();
 106     }
 107 }
 108
 109 void DolphinColumnView::dropEvent(QDropEvent* event)
 110 {
 111     const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
 112     if (!urls.isEmpty()) {
 113         m_controller->indicateDroppedUrls(urls,
 114                                           indexAt(event->pos()),
 115                                           event->source());
 116         event->acceptProposedAction();
 117     }
 118     QColumnView::dropEvent(event);
 119 }
 120
 121 void DolphinColumnView::zoomIn()
 122 {
 123     if (isZoomInPossible()) {
 124         ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings();
 125         // TODO: get rid of K3Icon sizes
 126         switch (settings->iconSize()) {
 127         case K3Icon::SizeSmall:  settings->setIconSize(K3Icon::SizeMedium); break;
 128         case K3Icon::SizeMedium: settings->setIconSize(K3Icon::SizeLarge); break;
 129         default: Q_ASSERT(false); break;
 130         }
 131         updateDecorationSize();
 132     }
 133 }
 134
 135 void DolphinColumnView::zoomOut()
 136 {
 137     if (isZoomOutPossible()) {
 138         ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings();
 139         // TODO: get rid of K3Icon sizes
 140         switch (settings->iconSize()) {
 141         case K3Icon::SizeLarge:  settings->setIconSize(K3Icon::SizeMedium); break;
 142         case K3Icon::SizeMedium: settings->setIconSize(K3Icon::SizeSmall); break;
 143         default: Q_ASSERT(false); break;
 144         }
 145         updateDecorationSize();
 146     }
 147 }
 148
 149 bool DolphinColumnView::isZoomInPossible() const
 150 {
 151     ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings();
 152     return settings->iconSize() < K3Icon::SizeLarge;
 153 }
 154
 155 bool DolphinColumnView::isZoomOutPossible() const
 156 {
 157     ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings();
 158     return settings->iconSize() > K3Icon::SizeSmall;
 159 }
 160
 161 void DolphinColumnView::updateDecorationSize()
 162 {
 163     ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings();
 164     const int iconSize = settings->iconSize();
 165     m_viewOptions.decorationSize = QSize(iconSize, iconSize);
 166
 167     m_controller->setZoomInPossible(isZoomInPossible());
 168     m_controller->setZoomOutPossible(isZoomOutPossible());
 169
 170     doItemsLayout();
 171 }
 172
 173 #include "dolphincolumnview.moc"