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