src/Dialog_DropBox.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2014 LoRd_MuldeR <MuldeR2@GMX.de>
   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, but always including the *additional*
   9 // restrictions defined in the "License.txt" file.
  10 //
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this program; if not, write to the Free Software Foundation, Inc.,
  18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 // http://www.gnu.org/licenses/gpl-2.0.txt
  21 ///////////////////////////////////////////////////////////////////////////////
  22
  23 #include "Dialog_DropBox.h"
  24
  25 #include "../tmp/UIC_DropBox.h"
  26
  27 #include "Global.h"
  28 #include "Model_Settings.h"
  29
  30 #include <QThread>
  31 #include <QMovie>
  32 #include <QKeyEvent>
  33 #include <QDesktopWidget>
  34 #include <QToolTip>
  35 #include <QTimer>
  36
  37 #define EPS (1.0E-5)
  38 #define SET_FONT_BOLD(WIDGET,BOLD) { QFont _font = (WIDGET)->font(); _font.setBold(BOLD); (WIDGET)->setFont(_font); }
  39
  40 static QRect SCREEN_GEOMETRY(void)
  41 {
  42         QDesktopWidget *desktop = QApplication::desktop();
  43         return (desktop->isVirtualDesktop() ? desktop->screen()->geometry() : desktop->availableGeometry());
  44 }
  45
  46 static const double LOW_OPACITY = 0.85;
  47
  48 ////////////////////////////////////////////////////////////
  49 // Constructor
  50 ////////////////////////////////////////////////////////////
  51
  52 DropBox::DropBox(QWidget *parent, QAbstractItemModel *model, SettingsModel *settings)
  53 :
  54 QDialog(parent, Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint),
  55         ui(new Ui::DropBox),
  56         m_model(model),
  57         m_settings(settings),
  58         m_moving(false),
  59         m_screenGeometry(SCREEN_GEOMETRY()),
  60         m_firstShow(true)
  61 {
  62         //Init the dialog, from the .ui file
  63         ui->setupUi(this);
  64
  65         //Init counter
  66         m_counterLabel = new QLabel(this);
  67         m_counterLabel->setParent(ui->dropBoxLabel);
  68         m_counterLabel->setText("0");
  69         m_counterLabel->setAlignment(Qt::AlignHCenter | Qt::AlignTop);
  70         SET_FONT_BOLD(m_counterLabel, true);
  71
  72         m_windowReferencePoint = new QPoint;
  73         m_mouseReferencePoint = new QPoint;
  74
  75         //Prevent close
  76         m_canClose = false;
  77
  78         //Make transparent
  79         setAttribute(Qt::WA_TranslucentBackground);
  80         setWindowOpacity(LOW_OPACITY);
  81
  82         //Translate UI
  83         QEvent languageChangeEvent(QEvent::LanguageChange);
  84         changeEvent(&languageChangeEvent);
  85 }
  86
  87 ////////////////////////////////////////////////////////////
  88 // Destructor
  89 ////////////////////////////////////////////////////////////
  90
  91 DropBox::~DropBox(void)
  92 {
  93         if(!m_firstShow)
  94         {
  95                 m_settings->dropBoxWidgetPositionX(this->x());
  96                 m_settings->dropBoxWidgetPositionY(this->y());
  97         }
  98
  99         LAMEXP_DELETE(m_counterLabel);
 100         LAMEXP_DELETE(m_windowReferencePoint);
 101         LAMEXP_DELETE(m_mouseReferencePoint);
 102         LAMEXP_DELETE(ui);
 103 }
 104
 105 ////////////////////////////////////////////////////////////
 106 // PUBLIC SLOTS
 107 ////////////////////////////////////////////////////////////
 108
 109 void DropBox::modelChanged(void)
 110 {
 111         if(m_model)
 112         {
 113                 m_counterLabel->setText(QString::number(m_model->rowCount()));
 114         }
 115 }
 116
 117 ////////////////////////////////////////////////////////////
 118 // EVENTS
 119 ////////////////////////////////////////////////////////////
 120
 121 /*
 122  * Re-translate the UI
 123  */
 124 void DropBox::changeEvent(QEvent *e)
 125 {
 126         if(e->type() == QEvent::LanguageChange)
 127         {
 128                 ui->retranslateUi(this);
 129                 ui->dropBoxLabel->setToolTip(QString("<b>%1</b><br><nobr>%2</nobr><br><nobr>%3</nobr>").arg(tr("LameXP DropBox"), tr("You can add files to LameXP via Drag&amp;Drop here!"), tr("(Right-click to close the DropBox)")));
 130         }
 131 }
 132
 133 void DropBox::showEvent(QShowEvent *event)
 134 {
 135         m_screenGeometry = SCREEN_GEOMETRY();
 136         setFixedSize(ui->dropBoxLabel->pixmap()->size());
 137
 138         m_counterLabel->setGeometry(0, ui->dropBoxLabel->height() - 30, ui->dropBoxLabel->width(), 25);
 139
 140         if(m_firstShow)
 141         {
 142                 m_firstShow = false;
 143                 int pos_x = m_settings->dropBoxWidgetPositionX();
 144                 int pos_y = m_settings->dropBoxWidgetPositionY();
 145                 if((pos_x < 0) && (pos_y < 0))
 146                 {
 147                         QWidget *const parentWidget = dynamic_cast<QWidget*>(this->parent());
 148                         QWidget *const targetWidget = parentWidget ? parentWidget : this;
 149                         QRect availGeometry = QApplication::desktop()->availableGeometry(targetWidget);
 150                         pos_x = availGeometry.width()  - frameGeometry().width()  + availGeometry.left();
 151                         pos_y = availGeometry.height() - frameGeometry().height() + availGeometry.top();
 152                 }
 153                 else
 154                 {
 155                         pos_x = qBound(0, pos_x, m_screenGeometry.width()  - frameGeometry().width());
 156                         pos_y = qBound(0, pos_y, m_screenGeometry.height() - frameGeometry().height());
 157                 }
 158                 move(pos_x, pos_y);
 159         }
 160
 161         if(m_moving)
 162         {
 163                 QApplication::restoreOverrideCursor();
 164                 m_moving = false;
 165                 setWindowOpacity(LOW_OPACITY);
 166         }
 167
 168         boundWidget(this);
 169 }
 170
 171 void DropBox::keyPressEvent(QKeyEvent *event)
 172 {
 173         event->ignore();
 174 }
 175
 176 void DropBox::keyReleaseEvent(QKeyEvent *event)
 177 {
 178         event->ignore();
 179 }
 180
 181 void DropBox::closeEvent(QCloseEvent *event)
 182 {
 183         if(!m_canClose)
 184         {
 185                 event->ignore();
 186         }
 187 }
 188
 189 void DropBox::mousePressEvent(QMouseEvent *event)
 190 {
 191         if(m_moving)
 192         {
 193                 event->ignore();
 194                 return;
 195         }
 196
 197         if(event->button() == Qt::RightButton)
 198         {
 199                 hide();
 200                 if(m_settings) m_settings->dropBoxWidgetEnabled(false);
 201                 return;
 202         }
 203
 204         m_screenGeometry = SCREEN_GEOMETRY();
 205         QApplication::setOverrideCursor(Qt::SizeAllCursor);
 206         *m_windowReferencePoint = this->pos();
 207         *m_mouseReferencePoint = event->globalPos();
 208         m_moving = true;
 209         setWindowOpacity(1.0);
 210 }
 211
 212 void DropBox::mouseReleaseEvent(QMouseEvent *event)
 213 {
 214         if(m_moving && event->button() != Qt::RightButton)
 215         {
 216                 boundWidget(this);
 217                 QApplication::restoreOverrideCursor();
 218                 setWindowOpacity(LOW_OPACITY);
 219                 m_settings->dropBoxWidgetPositionX(this->x());
 220                 m_settings->dropBoxWidgetPositionY(this->y());
 221                 m_moving = false;
 222         }
 223 }
 224
 225 void DropBox::mouseMoveEvent(QMouseEvent *event)
 226 {
 227         if(!m_moving)
 228         {
 229                 return;
 230         }
 231
 232         const int delta_x = m_mouseReferencePoint->x() - event->globalX();
 233         const int delta_y = m_mouseReferencePoint->y() - event->globalY();
 234
 235         const int max_x = m_screenGeometry.width() -  frameGeometry().width() + m_screenGeometry.left();
 236         const int max_y = m_screenGeometry.height() - frameGeometry().height() + m_screenGeometry.top();
 237
 238         const int new_x = qBound(m_screenGeometry.left(), m_windowReferencePoint->x() - delta_x, max_x);
 239         const int new_y = qBound(m_screenGeometry.top(),  m_windowReferencePoint->y() - delta_y, max_y);
 240
 241         move(new_x, new_y);
 242 }
 243
 244 void DropBox::showToolTip(void)
 245 {
 246         QToolTip::showText(ui->dropBoxLabel->mapToGlobal(ui->dropBoxLabel->pos()), ui->dropBoxLabel->toolTip());
 247 }
 248
 249 bool DropBox::event(QEvent *event)
 250 {
 251         switch(event->type())
 252         {
 253         case QEvent::Leave:
 254         case QEvent::WindowDeactivate:
 255                 if(m_moving)
 256                 {
 257                         QApplication::restoreOverrideCursor();
 258                         m_moving = false;
 259                 }
 260                 break;
 261         }
 262
 263         return QDialog::event(event);
 264 }
 265
 266 ////////////////////////////////////////////////////////////
 267 // PRIVATE
 268 ////////////////////////////////////////////////////////////
 269
 270 void DropBox::boundWidget(QWidget *widget)
 271 {
 272         static const int magnetic = 24;
 273         QRect availGeometry = QApplication::desktop()->availableGeometry(widget);
 274
 275         const int max_x = availGeometry.width()  - widget->frameGeometry().width()  + availGeometry.left();
 276         const int max_y = availGeometry.height() - widget->frameGeometry().height() + availGeometry.top();
 277
 278         int new_x = qBound(availGeometry.left(), widget->x(), max_x);
 279         int new_y = qBound(availGeometry.top(),  widget->y(), max_y);
 280
 281         if(new_x - availGeometry.left() < magnetic) new_x = availGeometry.left();
 282         if(new_y - availGeometry.top()  < magnetic) new_y = availGeometry.top();
 283
 284         if(max_x - new_x < magnetic) new_x = max_x;
 285         if(max_y - new_y < magnetic) new_y = max_y;
 286
 287         if((widget->x() != new_x) || (widget->y() != new_y))
 288         {
 289                 widget->move(new_x, new_y);
 290         }
 291 }