git.maemo.org Git - mdictionary/blob - trunk/src/base/gui/SearchBarWidget.cpp

   1 /*******************************************************************************
   2
   3     This file is part of mDictionary.
   4
   5     mDictionary 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 3 of the License, or
   8     (at your option) any later version.
   9
  10     mDictionary 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 mDictionary.  If not, see <http://www.gnu.org/licenses/>.
  17
  18     Copyright 2010 Comarch S.A.
  19
  20 *******************************************************************************/
  21
  22 //Created by Mateusz Półrola
  23
  24
  25 #include "SearchBarWidget.h"
  26 #include <QDebug>
  27 #include "../../includes/DictDialog.h"
  28 #include "HistoryListDialog.h"
  29
  30
  31 SearchBarWidget::SearchBarWidget(Backbone* backbone, QWidget *parent) :
  32     QWidget(parent) {
  33
  34     this->backbone = backbone;
  35
  36     history = backbone->history();
  37
  38     initializeUI();
  39
  40     setMaximumHeight(150);
  41
  42     _isSearching = false;
  43
  44     connect(searchPushButton, SIGNAL(clicked()),
  45             this, SLOT(searchPushButtonClicked()));
  46
  47     connect(searchWordLineEdit, SIGNAL(returnPressed()),
  48             this, SLOT(searchPushButtonClicked()));
  49
  50     connect(historyNextToolButton, SIGNAL(clicked()),
  51             this, SLOT(historyNextToolButtonClicked()));
  52
  53     connect(historyPrevToolButton, SIGNAL(clicked()),
  54             this, SLOT(historyPrevToolButtonClicked()));
  55
  56     connect(historyShowToolButton, SIGNAL(clicked()),
  57             this, SLOT(historyShowToolButtonClicked()));
  58
  59     connect(clearSearchWordToolButton, SIGNAL(clicked()),
  60             this, SLOT(clearSearchWordToolButtonClicked()));
  61
  62
  63     //connects request to backbone
  64     connect(this, SIGNAL(searchForTranslations(QString)),
  65             backbone, SLOT(search(QString)));
  66
  67     connect(this, SIGNAL(stopSearching()),
  68             backbone, SLOT(stopSearching()));
  69
  70     connect(backbone, SIGNAL(ready()),
  71             this, SLOT(setIdle()));
  72
  73     connect(backbone, SIGNAL(htmlReady()),
  74             this, SLOT(setIdle()));
  75
  76
  77     connect(history, SIGNAL(historyChanged(bool,bool,bool)),
  78             this, SLOT(updateHistoryButtons(bool,bool,bool)));
  79
  80     searchWordLineEdit->setFocus();
  81
  82     setEnabled(true);
  83 }
  84
  85 SearchBarWidget::~SearchBarWidget() {
  86
  87 }
  88
  89 QIcon SearchBarWidget::generateIcon(QIcon oryginal, qreal rotation) {
  90     QPixmap p = oryginal.pixmap(64);
  91
  92     if(rotation != 0) {
  93         QMatrix m;
  94         m.rotate(rotation);
  95
  96         p = p.transformed(m);
  97     }
  98
  99     QIcon newIcon;
 100     newIcon.addPixmap(p);
 101
 102     QPainter painter(&p);
 103     painter.fillRect(p.rect(), QColor(0,0,0,192));
 104
 105     newIcon.addPixmap(p, QIcon::Disabled, QIcon::Off);
 106
 107     return newIcon;
 108 }
 109
 110
 111 void SearchBarWidget::initializeUI() {
 112     horizontalLayout = new QHBoxLayout();
 113     verticalLayout = new QVBoxLayout();
 114
 115
 116     searchPushButton = new QPushButton(tr("Search"));
 117     searchPushButton->setMinimumWidth(150);
 118
 119
 120     searchWordLineEdit = new QLineEdit();
 121     searchWordLineEdit->setMinimumWidth(300);
 122     //create layout for lineEdit to have clear button on it
 123     QHBoxLayout* lineEditLayout = new QHBoxLayout;
 124     searchWordLineEdit->setLayout(lineEditLayout);
 125
 126
 127     clearSearchWordToolButton = new QToolButton();
 128     clearSearchWordToolButton->setIcon(QIcon::fromTheme("general_stop"));
 129     //tool buttons will have size 2 times smaller
 130     clearSearchWordToolButton->setMaximumSize(
 131             clearSearchWordToolButton->sizeHint().width()/2,
 132             clearSearchWordToolButton->sizeHint().height()/2);
 133
 134
 135     historyNextToolButton = new QToolButton();
 136     historyNextToolButton->setIcon(
 137             generateIcon(QIcon::fromTheme("general_forward")));
 138
 139     historyPrevToolButton = new QToolButton();
 140     historyPrevToolButton->setIcon(
 141             generateIcon(QIcon::fromTheme("general_back")));
 142
 143     historyShowToolButton = new QToolButton();
 144     historyShowToolButton->setIcon(
 145             generateIcon(QIcon::fromTheme("general_back"), 90));
 146
 147
 148
 149     searchingProgressBar = new QProgressBar();
 150     //progress bar have minimum and maximum values set to 0, which will effect
 151     //with "I'm alive" bar
 152     searchingProgressBar->setMinimum(0);
 153     searchingProgressBar->setMaximum(0);
 154     searchingProgressBar->hide();
 155     searchingProgressBar->setMaximumHeight(50);
 156
 157
 158     setLayout(verticalLayout);
 159
 160     verticalLayout->addWidget(searchingProgressBar);
 161
 162     //adding widgets to layout
 163     horizontalLayout->addWidget(searchWordLineEdit);
 164     horizontalLayout->addWidget(searchPushButton);
 165     horizontalLayout->addWidget(historyPrevToolButton);
 166     horizontalLayout->addWidget(historyShowToolButton);
 167     horizontalLayout->addWidget(historyNextToolButton);
 168
 169     //adding clear toolButton to textEdit with right alignment
 170     lineEditLayout->addWidget(clearSearchWordToolButton, 0,
 171                               Qt::AlignRight | Qt::AlignVCenter);
 172
 173     verticalLayout->addLayout(horizontalLayout);
 174 }
 175
 176
 177 void SearchBarWidget::searchPushButtonClicked() {
 178     if(_isSearching) {
 179         setIdle();
 180         emit stopSearching();
 181     }
 182     else {
 183         search(searchWordLineEdit->text());
 184     }
 185 }
 186
 187
 188 void SearchBarWidget::search(QString word) {
 189     if(!_isSearching && !word.isEmpty()) {
 190         searchWordLineEdit->setText(word);
 191         setBusy();
 192         history->add(word);
 193         emit searchForTranslations(word);
 194     }
 195 }
 196
 197 void SearchBarWidget::setEnabled(bool enabled) {
 198     searchWordLineEdit->setEnabled(enabled);
 199
 200     if(enabled) {
 201         historyNextToolButton->setEnabled(history->nextAvailable());
 202         historyPrevToolButton->setEnabled(history->prevAvailable());
 203         historyShowToolButton->setEnabled(history->listAvailable());
 204     }
 205     else {
 206         historyNextToolButton->setEnabled(false);
 207         historyPrevToolButton->setEnabled(false);
 208         historyShowToolButton->setEnabled(false);
 209     }
 210 }
 211
 212 void SearchBarWidget::setBusy() {
 213     if(_isSearching) return;
 214     searchingProgressBar->show();
 215     searchPushButton->setText(tr("Stop"));
 216     setEnabled(false);
 217     _isSearching = true;
 218     emit busy();
 219 }
 220
 221 void SearchBarWidget::setIdle() {
 222     if(!_isSearching) return;
 223     searchingProgressBar->hide();
 224     searchPushButton->setText(tr("Search"));
 225     setEnabled(true);
 226     _isSearching = false;
 227     emit idle();
 228 }
 229
 230 void SearchBarWidget::historyNextToolButtonClicked() {
 231     QString next = history->next();
 232     if(!next.isEmpty()) {
 233         searchWordLineEdit->setText(next);
 234     }
 235 }
 236
 237 void SearchBarWidget::historyPrevToolButtonClicked() {
 238     QString prev = history->previous();
 239     if(!prev.isEmpty()) {
 240         searchWordLineEdit->setText(prev);
 241     }
 242 }
 243
 244 void SearchBarWidget::historyShowToolButtonClicked() {
 245     HistoryListDialog listDialog(history, this);
 246     listDialog.exec();
 247 }
 248
 249 void SearchBarWidget::clearSearchWordToolButtonClicked() {
 250     searchWordLineEdit->clear();
 251 }
 252
 253
 254 bool SearchBarWidget::isSearching() const {
 255     return _isSearching;
 256 }
 257
 258 void SearchBarWidget::updateHistoryButtons(bool prev, bool next, bool list) {
 259     if(!isSearching()) {
 260         historyPrevToolButton->setEnabled(prev);
 261         historyNextToolButton->setEnabled(next);
 262         historyShowToolButton->setEnabled(list);
 263     }
 264 }