src/kfileplacesselector.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz (peter.penz@gmx.at)                  *
   3  *   Copyright (C) 2007 by Kevin Ottens (ervin@kde.org)                    *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "kfileplacesselector_p.h"
  22
  23 #include "kurlnavigator.h"
  24
  25 #include <assert.h>
  26
  27 #include <kiconloader.h>
  28 #include <kglobalsettings.h>
  29 #include <kfileplacesmodel.h>
  30 #include <kmenu.h>
  31 #include <kdebug.h>
  32
  33 #include <QPainter>
  34 #include <QPixmap>
  35 #include <kicon.h>
  36
  37 KFilePlacesSelector::KFilePlacesSelector(KUrlNavigator* parent, KFilePlacesModel* placesModel) :
  38     KUrlButton(parent),
  39     m_selectedItem(-1),
  40     m_urlNavigator(parent),
  41     m_placesModel(placesModel)
  42 {
  43     setFocusPolicy(Qt::NoFocus);
  44
  45     m_placesMenu = new KMenu(this);
  46
  47     updateMenu();
  48
  49     connect(m_placesModel, SIGNAL(rowsInserted(const QModelIndex&, int, int)),
  50             this, SLOT(updateMenu()));
  51     connect(m_placesModel, SIGNAL(rowsRemoved(const QModelIndex&, int, int)),
  52             this, SLOT(updateMenu()));
  53     connect(m_placesMenu, SIGNAL(triggered(QAction*)),
  54             this, SLOT(activatePlace(QAction*)));
  55
  56     setMenu(m_placesMenu);
  57 }
  58
  59 KFilePlacesSelector::~KFilePlacesSelector()
  60 {
  61 }
  62
  63 void KFilePlacesSelector::updateMenu()
  64 {
  65     m_placesMenu->clear();
  66
  67     const int rowCount = m_placesModel->rowCount();
  68     for (int i=0; i<rowCount; ++i) {
  69         QModelIndex index = m_placesModel->index(i, 0);
  70         QAction* action = new QAction(m_placesModel->icon(index),
  71                                       m_placesModel->text(index),
  72                                       m_placesMenu);
  73         m_placesMenu->addAction(action);
  74
  75         action->setData(i);
  76
  77         if (i == m_selectedItem) {
  78             //QPixmap pixmap = SmallIcon(bookmark.icon());
  79             setIcon(m_placesModel->icon(index));
  80             //setIconSize(pixmap.size());
  81             //setMinimumWidth(pixmap.width() + 2);
  82         }
  83     }
  84 }
  85
  86 void KFilePlacesSelector::updateSelection(const KUrl& url)
  87 {
  88     QModelIndex index = m_placesModel->closestItem(url);
  89
  90     if (index.isValid()) {
  91         m_selectedItem = index.row();
  92         setIcon(m_placesModel->icon(index));
  93     }
  94     else {
  95         m_selectedItem = -1;
  96         // No bookmark has been found which matches to the given Url. Show
  97         // a generic folder icon as pixmap for indication:
  98         setIcon(KIcon("folder"));
  99     }
 100 }
 101
 102 KUrl KFilePlacesSelector::selectedPlaceUrl() const
 103 {
 104     QModelIndex index = m_placesModel->index(m_selectedItem, 0);
 105
 106     if (index.isValid())
 107         return m_placesModel->url(index);
 108     else
 109         return KUrl();
 110 }
 111
 112 QString KFilePlacesSelector::selectedPlaceText() const
 113 {
 114     QModelIndex index = m_placesModel->index(m_selectedItem, 0);
 115
 116     if (index.isValid())
 117         return m_placesModel->text(index);
 118     else
 119         return QString();
 120 }
 121
 122 QSize KFilePlacesSelector::sizeHint() const
 123 {
 124     const int height = KUrlButton::sizeHint().height();
 125     return QSize(height, height);
 126 }
 127
 128 void KFilePlacesSelector::paintEvent(QPaintEvent* /*event*/)
 129 {
 130     QPainter painter(this);
 131
 132     const int buttonWidth  = width();
 133     const int buttonHeight = height();
 134
 135     QColor backgroundColor;
 136     QColor foregroundColor;
 137     const bool isHighlighted = isDisplayHintEnabled(EnteredHint) ||
 138                                isDisplayHintEnabled(DraggedHint);
 139     if (isHighlighted) {
 140         backgroundColor = KGlobalSettings::highlightColor();
 141         foregroundColor = KGlobalSettings::highlightedTextColor();
 142     }
 143     else {
 144         backgroundColor = palette().brush(QPalette::Background).color();
 145         foregroundColor = KGlobalSettings::buttonTextColor();
 146     }
 147
 148     // dimm the colors if the parent view does not have the focus
 149     const bool isActive = m_urlNavigator->isActive();
 150     if (!isActive) {
 151         QColor dimmColor(palette().brush(QPalette::Background).color());
 152         foregroundColor = mixColors(foregroundColor, dimmColor);
 153         if (isHighlighted) {
 154             backgroundColor = mixColors(backgroundColor, dimmColor);
 155         }
 156     }
 157
 158     if (!(isDisplayHintEnabled(ActivatedHint) && isActive) && !isHighlighted) {
 159         // dimm the foreground color by mixing it with the background
 160         foregroundColor = mixColors(foregroundColor, backgroundColor);
 161         painter.setPen(foregroundColor);
 162     }
 163
 164     // draw button backround
 165     painter.setPen(Qt::NoPen);
 166     painter.setBrush(backgroundColor);
 167     painter.drawRect(0, 0, buttonWidth, buttonHeight);
 168
 169     // draw icon
 170     const QPixmap pixmap = icon().pixmap();
 171     const int x = (buttonWidth -  pixmap.width()) / 2;
 172     const int y = (buttonHeight - pixmap.height()) / 2;
 173     painter.drawPixmap(x, y, pixmap);
 174 }
 175
 176 void KFilePlacesSelector::activatePlace(QAction* action)
 177 {
 178     assert(action != 0);
 179     m_selectedItem = action->data().toInt();
 180
 181     QModelIndex index = m_placesModel->index(m_selectedItem, 0);
 182
 183     if (index.isValid()) {
 184         setIcon(m_placesModel->icon(index));
 185         emit placeActivated(m_placesModel->url(index));
 186     }
 187 }
 188
 189 #include "kfileplacesselector_p.moc"
 190