src/Dialog_DropBox.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2011 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.
   9 //
  10 // This program 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 along
  16 // with this program; if not, write to the Free Software Foundation, Inc.,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 // http://www.gnu.org/licenses/gpl-2.0.txt
  20 ///////////////////////////////////////////////////////////////////////////////
  21
  22 #include "Dialog_DropBox.h"
  23
  24 #include "Global.h"
  25 #include "Model_Settings.h"
  26
  27 #include <QThread>
  28 #include <QMovie>
  29 #include <QKeyEvent>
  30 #include <QDesktopWidget>
  31 #include <QToolTip>
  32 #include <QTimer>
  33
  34 #define EPS (1.0E-5)
  35 #define SET_FONT_BOLD(WIDGET,BOLD) { QFont _font = WIDGET.font(); _font.setBold(BOLD); WIDGET.setFont(_font); }
  36
  37 ////////////////////////////////////////////////////////////
  38 // Constructor
  39 ////////////////////////////////////////////////////////////
  40
  41 DropBox::DropBox(QWidget *parent, QAbstractItemModel *model, SettingsModel *settings)
  42 :
  43         QDialog(parent, Qt::CustomizeWindowHint | Qt::WindowStaysOnTopHint),
  44         m_counterLabel(this),
  45         m_model(model),
  46         m_settings(settings),
  47         m_moving(false),
  48         m_firstShow(true)
  49 {
  50         //Init the dialog, from the .ui file
  51         setupUi(this);
  52
  53         //Init counter
  54         m_counterLabel.setParent(dropBoxLabel);
  55         m_counterLabel.setText("0");
  56         m_counterLabel.setAlignment(Qt::AlignHCenter | Qt::AlignTop);
  57         SET_FONT_BOLD(m_counterLabel, true);
  58
  59         //Prevent close
  60         m_canClose = false;
  61
  62         //Make transparent
  63         setWindowOpacity(0.8);
  64
  65         //Translate UI
  66         QEvent languageChangeEvent(QEvent::LanguageChange);
  67         changeEvent(&languageChangeEvent);
  68 }
  69
  70 ////////////////////////////////////////////////////////////
  71 // Destructor
  72 ////////////////////////////////////////////////////////////
  73
  74 DropBox::~DropBox(void)
  75 {
  76 }
  77
  78 ////////////////////////////////////////////////////////////
  79 // PUBLIC SLOTS
  80 ////////////////////////////////////////////////////////////
  81
  82 void DropBox::modelChanged(void)
  83 {
  84         if(m_model)
  85         {
  86                 m_counterLabel.setText(QString::number(m_model->rowCount()));
  87         }
  88 }
  89
  90 ////////////////////////////////////////////////////////////
  91 // EVENTS
  92 ////////////////////////////////////////////////////////////
  93
  94 /*
  95  * Re-translate the UI
  96  */
  97 void DropBox::changeEvent(QEvent *e)
  98 {
  99         if(e->type() == QEvent::LanguageChange)
 100         {
 101                 Ui::DropBox::retranslateUi(this);
 102                 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)")));
 103         }
 104 }
 105
 106 void DropBox::showEvent(QShowEvent *event)
 107 {
 108         QRect screenGeometry = QApplication::desktop()->availableGeometry();
 109
 110         resize(dropBoxLabel->pixmap()->size());
 111         setMaximumSize(dropBoxLabel->pixmap()->size());
 112
 113         m_counterLabel.setGeometry(0, dropBoxLabel->height() - 30, dropBoxLabel->width(), 25);
 114
 115         if(m_firstShow)
 116         {
 117                 m_firstShow = false;
 118                 int max_x = screenGeometry.width() - frameGeometry().width() + screenGeometry.left();
 119                 int max_y = screenGeometry.height() - frameGeometry().height() + screenGeometry.top();
 120                 move(max_x, max_y);
 121                 QTimer::singleShot(333, this, SLOT(showToolTip()));
 122         }
 123
 124         if(m_moving)
 125         {
 126                 QApplication::restoreOverrideCursor();
 127                 m_moving = false;
 128         }
 129 }
 130
 131 void DropBox::keyPressEvent(QKeyEvent *event)
 132 {
 133         event->ignore();
 134 }
 135
 136 void DropBox::keyReleaseEvent(QKeyEvent *event)
 137 {
 138         event->ignore();
 139 }
 140
 141 void DropBox::closeEvent(QCloseEvent *event)
 142 {
 143         if(!m_canClose) event->ignore();
 144 }
 145
 146 void DropBox::mousePressEvent(QMouseEvent *event)
 147 {
 148         if(m_moving)
 149         {
 150                 event->ignore();
 151                 return;
 152         }
 153
 154         if(event->button() == Qt::RightButton)
 155         {
 156                 hide();
 157                 if(m_settings) m_settings->dropBoxWidgetEnabled(false);
 158                 return;
 159         }
 160
 161         QApplication::setOverrideCursor(Qt::SizeAllCursor);
 162         m_moving = true;
 163         m_windowReferencePoint = this->pos();
 164         m_mouseReferencePoint = event->globalPos();
 165 }
 166
 167 void DropBox::mouseReleaseEvent(QMouseEvent *event)
 168 {
 169         if(m_moving && event->button() != Qt::RightButton)
 170         {
 171                 QApplication::restoreOverrideCursor();
 172                 m_moving = false;
 173         }
 174 }
 175
 176 void DropBox::mouseMoveEvent(QMouseEvent *event)
 177 {
 178         if(!m_moving)
 179         {
 180                 return;
 181         }
 182
 183         static const int magnetic = 22;
 184         QRect screenGeometry = QApplication::desktop()->availableGeometry();
 185
 186         const int delta_x = m_mouseReferencePoint.x() - event->globalX();
 187         const int delta_y = m_mouseReferencePoint.y() - event->globalY();
 188         const int max_x = screenGeometry.width() - frameGeometry().width() + screenGeometry.left();
 189         const int max_y = screenGeometry.height() - frameGeometry().height() + screenGeometry.top();
 190
 191         int new_x = min(max_x, max(screenGeometry.left(), m_windowReferencePoint.x() - delta_x));
 192         int new_y = min(max_y, max(screenGeometry.top(), m_windowReferencePoint.y() - delta_y));
 193
 194         if(new_x < magnetic)
 195         {
 196                 new_x = 0;
 197         }
 198         else if(max_x - new_x < magnetic)
 199         {
 200                 new_x = max_x;
 201         }
 202
 203         if(new_y < magnetic)
 204         {
 205                 new_y = 0;
 206         }
 207         else if(max_y - new_y < magnetic)
 208         {
 209                 new_y = max_y;
 210         }
 211
 212         move(new_x, new_y);
 213 }
 214
 215 void DropBox::showToolTip(void)
 216 {
 217         QToolTip::showText(dropBoxLabel->mapToGlobal(dropBoxLabel->pos()), dropBoxLabel->toolTip());
 218 }
 219
 220 bool DropBox::event(QEvent *event)
 221 {
 222         switch(event->type())
 223         {
 224         case QEvent::Leave:
 225         case QEvent::WindowDeactivate:
 226                 if(m_moving)
 227                 {
 228                         QApplication::restoreOverrideCursor();
 229                         m_moving = false;
 230                 }
 231                 break;
 232         }
 233
 234         return QDialog::event(event);
 235 }