git.maemo.org Git - situare/blob - src/ui/locationsearchpanel.cpp

   1 /*
   2     Situare - A location system for Facebook
   3     Copyright (C) 2010  Ixonos Plc. Authors:
   4
   5         Jussi Laitinen - jussi.laitinen@ixonos.com
   6         Sami Rämö - sami.ramo@ixonos.com
   7
   8     Situare is free software; you can redistribute it and/or
   9     modify it under the terms of the GNU General Public License
  10     version 2 as published by the Free Software Foundation.
  11
  12     Situare is distributed in the hope that it will be useful,
  13     but WITHOUT ANY WARRANTY; without even the implied warranty of
  14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15     GNU General Public License for more details.
  16
  17     You should have received a copy of the GNU General Public License
  18     along with Situare; if not, write to the Free Software
  19     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
  20     USA.
  21 */
  22
  23 #include <QSettings>
  24
  25 #include "avatarimage.h"
  26 #include "../common.h"
  27 #include "extendedlistitem.h"
  28 #include "extendedlistitemdelegate.h"
  29 #include "locationlistitem.h"
  30 #include "locationlistview.h"
  31 #include "imagebutton.h"
  32 #include "panelcommon.h"
  33 #include "routing/location.h"
  34 #include "searchhistorylistitem.h"
  35 #include "searchhistorylistview.h"
  36
  37 #include "locationsearchpanel.h"
  38
  39 const QString SETTINGS_SEARCH_HISTORY = "SEARCH_HISTORY";
  40
  41 LocationSearchPanel::LocationSearchPanel(QWidget *parent)
  42     : PanelBase(parent)
  43 {
  44     qDebug() << __PRETTY_FUNCTION__;
  45
  46     // --- HEADER WIDGET ---
  47     QWidget *resultsHeaderWidget = new QWidget();
  48     resultsHeaderWidget->setAutoFillBackground(true);
  49     QPalette labelPalette = resultsHeaderWidget->palette();
  50     labelPalette.setColor(QPalette::Background, Qt::black);
  51     resultsHeaderWidget->setPalette(labelPalette);
  52
  53     QHBoxLayout *headerLayout = new QHBoxLayout();
  54     resultsHeaderWidget->setLayout(headerLayout);
  55     headerLayout->setContentsMargins(PANEL_MARGIN_LEFT, PANEL_MARGIN_TOP,
  56                                      PANEL_MARGIN_RIGHT, PANEL_MARGIN_BOTTOM);
  57
  58     m_resultsLabel = new QLabel(this);
  59     headerLayout->addWidget(m_resultsLabel, 0, Qt::AlignCenter);
  60     setHeaderText(0);
  61
  62     // --- SEARCH HISTORY LIST VIEW ---
  63     m_searchHistoryListView = new SearchHistoryListView(this);
  64     m_searchHistoryListView->setItemDelegate(new ExtendedListItemDelegate(this));
  65
  66     connect(m_searchHistoryListView, SIGNAL(searchHistoryItemClicked(QString)),
  67             this, SIGNAL(searchHistoryItemClicked(QString)));
  68
  69     // --- SEARCH RESULTS LIST VIEW ---
  70     m_locationListView = new LocationListView(this);
  71     m_locationListView->setItemDelegate(new ExtendedListItemDelegate(this));
  72
  73     connect(m_locationListView,
  74             SIGNAL(locationItemClicked(const GeoCoordinate&, const GeoCoordinate&)),
  75             this,
  76             SIGNAL(locationItemClicked(const GeoCoordinate&, const GeoCoordinate&)));
  77
  78     connect(m_locationListView, SIGNAL(listItemSelectionChanged()),
  79             this, SLOT(onListItemSelectionChanged()));
  80
  81     QVBoxLayout *resultsListViewLayout = new QVBoxLayout;
  82     resultsListViewLayout->setContentsMargins(PANEL_MARGIN_LEFT, PANEL_MARGIN_TOP,
  83                                        PANEL_MARGIN_RIGHT, PANEL_MARGIN_BOTTOM);
  84     resultsListViewLayout->addWidget(m_searchHistoryListView);
  85     resultsListViewLayout->addWidget(m_locationListView);
  86
  87     // --- MAIN LAYOUT ---
  88     QVBoxLayout *panelLayout = new QVBoxLayout;
  89     panelLayout->setSpacing(0);
  90     setLayout(panelLayout);
  91
  92     const int MARGIN_LEFT = 0;
  93     panelLayout->setContentsMargins(MARGIN_LEFT, PANEL_MARGIN_TOP,
  94                                     PANEL_MARGIN_RIGHT, PANEL_MARGIN_BOTTOM);
  95     m_noSearchLabel = new QLabel();
  96     m_noSearchLabel->setText("No search results");
  97     m_noSearchLabel->setAlignment(Qt::AlignCenter);
  98
  99     QPalette m_noSearchPalette = palette();
 100     m_noSearchPalette.setColor(QPalette::Foreground, Qt::white);
 101     m_noSearchLabel->setPalette(m_noSearchPalette);
 102
 103     panelLayout->addWidget(resultsHeaderWidget);
 104     panelLayout->addWidget(m_noSearchLabel, Qt::AlignCenter);
 105     panelLayout->addLayout(resultsListViewLayout);
 106
 107     // --- CONTEXT BUTTONS ---
 108     m_routeButton = new ImageButton(":res/images/route_to_location.png",
 109                                     ":res/images/route_to_location_s.png", "", this);
 110     connect(m_routeButton, SIGNAL(clicked()),
 111             this, SLOT(routeToSelectedLocation()));
 112
 113     ImageButton *searchLocationButton = new ImageButton(":/res/images/search.png",
 114                                                         ":/res/images/search_s.png", "", this);
 115
 116     connect(searchLocationButton, SIGNAL(clicked()),
 117             this, SIGNAL(requestSearchLocation()));
 118
 119     m_clearLocationListButton = new ImageButton(":/res/images/back.png",
 120                                                 ":/res/images/back_s.png",
 121                                                 ":/res/images/back_d.png", this);
 122     m_clearLocationListButton->setDisabled(true);
 123
 124     connect(m_clearLocationListButton, SIGNAL(clicked()),
 125             this, SLOT(showSearchHistoryListView()));
 126
 127     m_itemButtonsLayout->addWidget(m_routeButton);
 128     m_genericButtonsLayout->addWidget(searchLocationButton);
 129     m_genericButtonsLayout->addWidget(m_clearLocationListButton);
 130
 131     showSearchHistoryListView();
 132     showEmptyPanel(true);
 133     readSettings();
 134 }
 135
 136 LocationSearchPanel::~LocationSearchPanel()
 137 {
 138     qDebug() << __PRETTY_FUNCTION__;
 139
 140     QSettings settings(DIRECTORY_NAME, FILE_NAME);
 141     QList<QVariant> searchHistories;
 142
 143     for (int i = 0; i < m_searchHistoryListView->count(); ++i) {
 144         SearchHistoryListItem *item = dynamic_cast<SearchHistoryListItem*>(
 145                 m_searchHistoryListView->listItemAt(i));
 146
 147         if (item) {
 148             QList<QString> searchHistory;
 149             searchHistory.append(item->title());
 150             searchHistory.append(item->dateTime().toString());
 151             searchHistories.append(QVariant(searchHistory));
 152         }
 153     }
 154
 155     settings.setValue(SETTINGS_SEARCH_HISTORY, searchHistories);
 156 }
 157
 158 void LocationSearchPanel::prependSearchHistory(QString searchString, QDateTime dateTime)
 159 {
 160     qDebug() << __PRETTY_FUNCTION__;
 161
 162     const int SEARCH_HISTORY_LIMIT = 10;
 163     static int counter = 0;
 164
 165     showSearchHistoryListView();
 166     showEmptyPanel(false);
 167
 168     if (m_searchHistoryListView->count() >= SEARCH_HISTORY_LIMIT)
 169         m_searchHistoryListView->removeLastItem();
 170
 171     SearchHistoryListItem *item = new SearchHistoryListItem();
 172     item->setSearchHistoryData(searchString, dateTime);
 173     m_searchHistoryListView->prependListItem(QString::number(counter++), item);
 174 }
 175
 176 void LocationSearchPanel::clearListsSelections()
 177 {
 178     qDebug() << __PRETTY_FUNCTION__;
 179
 180     m_locationListView->clearItemSelection();
 181     m_searchHistoryListView->clearItemSelection();
 182 }
 183
 184 void LocationSearchPanel::hideEvent(QHideEvent *event)
 185 {
 186     qDebug() << __PRETTY_FUNCTION__;
 187
 188     QWidget::hideEvent(event);
 189
 190     clearListsSelections();
 191 }
 192
 193 void LocationSearchPanel::populateLocationListView(const QList<Location> &locations)
 194 {
 195     qDebug() << __PRETTY_FUNCTION__;
 196
 197     m_locationListView->clearList();
 198     showLocationListView(locations.count());
 199
 200     for (int i = 0; i < locations.size(); ++i) {
 201         LocationListItem *item = new LocationListItem();
 202         item->setLocationData(locations.at(i));
 203         m_locationListView->addListItem(QString::number(i), item);
 204     }
 205
 206     m_locationListView->scrollToTop();
 207 }
 208
 209 void LocationSearchPanel::readSettings()
 210 {
 211     qDebug() << __PRETTY_FUNCTION__;
 212
 213     const int SEARCH_HISTORY_LIST_ITEM_COUNT = 2;
 214
 215     QSettings settings(DIRECTORY_NAME, FILE_NAME);
 216     QList<QVariant> searchHistories = settings.value(SETTINGS_SEARCH_HISTORY).toList();
 217
 218     //Read from end to begin so items are prepended in correct order
 219     for (int i = searchHistories.count() - 1; i >= 0; --i) {
 220         QList<QVariant> searchHistory = searchHistories.at(i).toList();
 221         if (searchHistory.count() == SEARCH_HISTORY_LIST_ITEM_COUNT) {
 222             prependSearchHistory(searchHistory.at(0).toString(),
 223                                  QDateTime::fromString(searchHistory.at(1).toString()));
 224         }
 225     }
 226 }
 227
 228 void LocationSearchPanel::routeToSelectedLocation()
 229 {
 230     qDebug() << __PRETTY_FUNCTION__;
 231
 232     LocationListItem *item = dynamic_cast<LocationListItem *>
 233                              (m_locationListView->selectedItem());
 234
 235     if (item)
 236         emit routeToLocation(item->coordinates());
 237 }
 238
 239 void LocationSearchPanel::showEmptyPanel(bool show)
 240 {
 241     if (show) {
 242         m_noSearchLabel->show();
 243         m_searchHistoryListView->hide();
 244     }
 245     else {
 246         m_noSearchLabel->hide();
 247     }
 248 }
 249
 250 void LocationSearchPanel::setHeaderText(int count)
 251 {
 252     qDebug() << __PRETTY_FUNCTION__;
 253
 254     m_resultsLabel->setText(tr("Search results: %1").arg(count));
 255 }
 256
 257 void LocationSearchPanel::showLocationListView(int locationItemsCount)
 258 {
 259     qDebug() << __PRETTY_FUNCTION__;
 260
 261     m_searchHistoryListView->clearItemSelection();
 262     m_searchHistoryListView->hide();
 263     setHeaderText(locationItemsCount);
 264     m_clearLocationListButton->setEnabled(true);
 265     m_locationListView->show();
 266     showEmptyPanel(false);
 267 }
 268
 269 void LocationSearchPanel::showSearchHistoryListView()
 270 {
 271     qDebug() << __PRETTY_FUNCTION__;
 272
 273     m_locationListView->clearList();
 274     m_locationListView->hide();
 275     m_resultsLabel->setText(tr("Search history:"));
 276     m_clearLocationListButton->setDisabled(true);
 277     m_searchHistoryListView->show();
 278 }