src/bookmarkselector.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 "bookmarkselector.h"
  21
  22 #include "dolphinsettings.h"
  23 #include "urlnavigator.h"
  24
  25 #include <assert.h>
  26
  27 #include <kiconloader.h>
  28 #include <kglobalsettings.h>
  29 #include <kbookmarkmanager.h>
  30 #include <kmenu.h>
  31 #include <kdebug.h>
  32
  33 #include <QPainter>
  34 #include <QPixmap>
  35
  36 BookmarkSelector::BookmarkSelector(UrlNavigator* parent) :
  37     UrlButton(parent),
  38     m_selectedIndex(0),
  39     m_urlNavigator(parent)
  40 {
  41     setFocusPolicy(Qt::NoFocus);
  42
  43     m_bookmarksMenu = new KMenu(this);
  44
  45     KBookmarkGroup root = DolphinSettings::instance().bookmarkManager()->root();
  46     KBookmark bookmark = root.first();
  47     int i = 0;
  48     while (!bookmark.isNull()) {
  49         QAction* action = new QAction(MainBarIcon(bookmark.icon()),
  50                                       bookmark.text(),
  51                                       this);
  52         action->setData(i);
  53         m_bookmarksMenu->addAction(action);
  54         if (i == m_selectedIndex) {
  55             QPixmap pixmap = SmallIcon(bookmark.icon());
  56             setIcon(QIcon(pixmap));
  57             setIconSize(pixmap.size());
  58             setMinimumWidth(pixmap.width() + 2);
  59         }
  60         bookmark = root.next(bookmark);
  61         ++i;
  62     }
  63
  64     connect(m_bookmarksMenu, SIGNAL(triggered(QAction*)),
  65             this, SLOT(activateBookmark(QAction*)));
  66
  67     setMenu(m_bookmarksMenu);
  68 }
  69
  70 BookmarkSelector::~BookmarkSelector()
  71 {
  72 }
  73
  74 void BookmarkSelector::updateSelection(const KUrl& url)
  75 {
  76     m_selectedIndex = baseBookmarkIndex(url);
  77     if (m_selectedIndex >= 0) {
  78         KBookmark bookmark = DolphinSettings::instance().bookmark(m_selectedIndex);
  79         setIcon(SmallIcon(bookmark.icon()));
  80     }
  81     else {
  82         // No bookmark has been found which matches to the given Url. Show
  83         // a generic folder icon as pixmap for indication:
  84         setIcon(SmallIcon("folder"));
  85     }
  86 }
  87
  88 KBookmark BookmarkSelector::selectedBookmark() const
  89 {
  90     return DolphinSettings::instance().bookmark(m_selectedIndex);
  91 }
  92
  93 QSize BookmarkSelector::sizeHint() const
  94 {
  95     const int height = UrlButton::sizeHint().height();
  96     return QSize(height, height);
  97 }
  98
  99 KBookmark BookmarkSelector::baseBookmark(const KUrl& url)
 100 {
 101     const int index = baseBookmarkIndex(url);
 102     return DolphinSettings::instance().bookmark(index);
 103 }
 104
 105 void BookmarkSelector::paintEvent(QPaintEvent* /*event*/)
 106 {
 107     QPainter painter(this);
 108
 109     const int buttonWidth  = width();
 110     const int buttonHeight = height();
 111
 112     QColor backgroundColor;
 113     QColor foregroundColor;
 114     const bool isHighlighted = isDisplayHintEnabled(EnteredHint) ||
 115                                isDisplayHintEnabled(DraggedHint);
 116     if (isHighlighted) {
 117         backgroundColor = KGlobalSettings::highlightColor();
 118         foregroundColor = KGlobalSettings::highlightedTextColor();
 119     }
 120     else {
 121         backgroundColor = palette().brush(QPalette::Background).color();
 122         foregroundColor = KGlobalSettings::buttonTextColor();
 123     }
 124
 125     // dimm the colors if the parent view does not have the focus
 126     const bool isActive = m_urlNavigator->isActive();
 127     if (!isActive) {
 128         QColor dimmColor(palette().brush(QPalette::Background).color());
 129         foregroundColor = mixColors(foregroundColor, dimmColor);
 130         if (isHighlighted) {
 131             backgroundColor = mixColors(backgroundColor, dimmColor);
 132         }
 133     }
 134
 135     if (!(isDisplayHintEnabled(ActivatedHint) && isActive) && !isHighlighted) {
 136         // dimm the foreground color by mixing it with the background
 137         foregroundColor = mixColors(foregroundColor, backgroundColor);
 138         painter.setPen(foregroundColor);
 139     }
 140
 141     // draw button backround
 142     painter.setPen(Qt::NoPen);
 143     painter.setBrush(backgroundColor);
 144     painter.drawRect(0, 0, buttonWidth, buttonHeight);
 145
 146     // draw icon
 147     const QPixmap pixmap = icon().pixmap();
 148     const int x = (buttonWidth -  pixmap.width()) / 2;
 149     const int y = (buttonHeight - pixmap.height()) / 2;
 150     painter.drawPixmap(x, y, pixmap);
 151 }
 152
 153 void BookmarkSelector::activateBookmark(QAction* action)
 154 {
 155     assert(action != 0);
 156     m_selectedIndex = action->data().toInt();
 157
 158     const KBookmark bookmark = selectedBookmark();
 159     setPixmap(SmallIcon(bookmark.icon()));
 160     emit bookmarkActivated(bookmark.url());
 161 }
 162
 163 int BookmarkSelector::baseBookmarkIndex(const KUrl& url)
 164 {
 165     int index = -1;  // return value
 166
 167     KBookmarkGroup root = DolphinSettings::instance().bookmarkManager()->root();
 168     KBookmark bookmark = root.first();
 169
 170     int maxLength = 0;
 171
 172     // Search the bookmark which is equal to the Url or at least is a parent Url.
 173     // If there are more than one possible parent Url candidates, choose the bookmark
 174     // which covers the bigger range of the Url.
 175     int i = 0;
 176     while (!bookmark.isNull()) {
 177         const KUrl bookmarkUrl = bookmark.url();
 178         if (bookmarkUrl.isParentOf(url)) {
 179             const int length = bookmarkUrl.prettyUrl().length();
 180             if (length > maxLength) {
 181                 index = i;
 182                 maxLength = length;
 183             }
 184         }
 185         bookmark = root.next(bookmark);
 186         ++i;
 187     }
 188
 189     return index;
 190 }
 191
 192 #include "bookmarkselector.moc"
 193