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     setMouseTracking(true);
  42     viewport()->setAttribute(Qt::WA_Hover);
  43
  44     if (KGlobalSettings::singleClick()) {
  45         connect(this, SIGNAL(clicked(const QModelIndex&)),
  46                 controller, SLOT(triggerItem(const QModelIndex&)));
  47     } else {
  48         connect(this, SIGNAL(doubleClicked(const QModelIndex&)),
  49                 controller, SLOT(triggerItem(const QModelIndex&)));
  50     }
  51     connect(this, SIGNAL(activated(const QModelIndex&)),
  52             controller, SLOT(triggerItem(const QModelIndex&)));
  53     connect(this, SIGNAL(entered(const QModelIndex&)),
  54             controller, SLOT(emitItemEntered(const QModelIndex&)));
  55     connect(this, SIGNAL(viewportEntered()),
  56             controller, SLOT(emitViewportEntered()));
  57     connect(controller, SIGNAL(zoomIn()),
  58             this, SLOT(zoomIn()));
  59     connect(controller, SIGNAL(zoomOut()),
  60             this, SLOT(zoomOut()));
  61
  62     // apply the column mode settings to the widget
  63     const ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings();
  64     Q_ASSERT(settings != 0);
  65
  66     m_viewOptions = QColumnView::viewOptions();
  67
  68     QFont font(settings->fontFamily(), settings->fontSize());
  69     font.setItalic(settings->italicFont());
  70     font.setBold(settings->boldFont());
  71     m_viewOptions.font = font;
  72
  73     updateDecorationSize();
  74 }
  75
  76 DolphinColumnView::~DolphinColumnView()
  77 {
  78 }
  79
  80 QStyleOptionViewItem DolphinColumnView::viewOptions() const
  81 {
  82     return m_viewOptions;
  83 }
  84
  85 void DolphinColumnView::contextMenuEvent(QContextMenuEvent* event)
  86 {
  87     QColumnView::contextMenuEvent(event);
  88     m_controller->triggerContextMenuRequest(event->pos());
  89 }
  90
  91 void DolphinColumnView::mousePressEvent(QMouseEvent* event)
  92 {
  93     m_controller->triggerActivation();
  94     QColumnView::mousePressEvent(event);
  95 }
  96
  97 void DolphinColumnView::dragEnterEvent(QDragEnterEvent* event)
  98 {
  99     if (event->mimeData()->hasUrls()) {
 100         event->acceptProposedAction();
 101     }
 102 }
 103
 104 void DolphinColumnView::dropEvent(QDropEvent* event)
 105 {
 106     const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
 107     if (!urls.isEmpty()) {
 108         m_controller->indicateDroppedUrls(urls,
 109                                           indexAt(event->pos()),
 110                                           event->source());
 111         event->acceptProposedAction();
 112     }
 113     QColumnView::dropEvent(event);
 114 }
 115
 116 void DolphinColumnView::zoomIn()
 117 {
 118     if (isZoomInPossible()) {
 119         ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings();
 120         // TODO: get rid of K3Icon sizes
 121         switch (settings->iconSize()) {
 122         case K3Icon::SizeSmall:  settings->setIconSize(K3Icon::SizeMedium); break;
 123         case K3Icon::SizeMedium: settings->setIconSize(K3Icon::SizeLarge); break;
 124         default: Q_ASSERT(false); break;
 125         }
 126         updateDecorationSize();
 127     }
 128 }
 129
 130 void DolphinColumnView::zoomOut()
 131 {
 132     if (isZoomOutPossible()) {
 133         ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings();
 134         // TODO: get rid of K3Icon sizes
 135         switch (settings->iconSize()) {
 136         case K3Icon::SizeLarge:  settings->setIconSize(K3Icon::SizeMedium); break;
 137         case K3Icon::SizeMedium: settings->setIconSize(K3Icon::SizeSmall); break;
 138         default: Q_ASSERT(false); break;
 139         }
 140         updateDecorationSize();
 141     }
 142 }
 143
 144 bool DolphinColumnView::isZoomInPossible() const
 145 {
 146     ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings();
 147     return settings->iconSize() < K3Icon::SizeLarge;
 148 }
 149
 150 bool DolphinColumnView::isZoomOutPossible() const
 151 {
 152     ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings();
 153     return settings->iconSize() > K3Icon::SizeSmall;
 154 }
 155
 156 void DolphinColumnView::updateDecorationSize()
 157 {
 158     ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings();
 159     const int iconSize = settings->iconSize();
 160     m_viewOptions.decorationSize = QSize(iconSize, iconSize);
 161
 162     m_controller->setZoomInPossible(isZoomInPossible());
 163     m_controller->setZoomOutPossible(isZoomOutPossible());
 164
 165     doItemsLayout();
 166 }
 167
 168 #include "dolphincolumnview.moc"