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Viewing changes to kde/src/delegates/delegatedropoverlay.cpp

  • Committer: Package Import Robot
  • Author(s): Mark Purcell
  • Date: 2014-01-28 18:23:36 UTC
  • mfrom: (1.1.11)
  • mto: This revision was merged to the branch mainline in revision 24.
  • Revision ID: package-import@ubuntu.com-20140128182336-3xenud1kbnwmf3mz
http://bugs.debian.org/735846
http://bugs.debian.org/727164
http://bugs.debian.org/718178
http://bugs.debian.org/736583
http://bugs.debian.org/722040
http://bugs.debian.org/736746
* New upstream release 
  - Fixes "New Upstream Release" (Closes: #735846)
  - Fixes "Ringtone does not stop" (Closes: #727164)
  - Fixes "[sflphone-kde] crash on startup" (Closes: #718178)
  - Fixes "sflphone GUI crashes when call is hung up" (Closes: #736583)
* Build-Depends: ensure GnuTLS 2.6
  - libucommon-dev (>= 6.0.7-1.1), libccrtp-dev (>= 2.0.6-3)
  - Fixes "FTBFS Build-Depends libgnutls{26,28}-dev" (Closes: #722040)
* Fix "boost 1.49 is going away" unversioned Build-Depends: (Closes: #736746)
* Add Build-Depends: libsndfile-dev, nepomuk-core-dev

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kde/src/delegates/delegatedropoverlay.cpp
 
1
/***************************************************************************
 
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 *   Copyright (C) 2011-2014 by Savoir-Faire Linux                         *
 
3
 *   Author : Emmanuel Lepage Vallee <emmanuel.lepage@savoirfairelinux.com>*
 
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 3 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     *
 
16
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
 
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 **************************************************************************/
 
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#include "delegatedropoverlay.h"
 
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#include <QtGui/QPainter>
 
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#include <KDebug>
 
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#include <QtCore/QTimer>
 
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#include <QDragEnterEvent>
 
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#include <QDragMoveEvent>
 
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#include <QDragLeaveEvent>
 
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#include <QMimeData>
 
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#include <QtGui/QApplication>
 
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#include "lib/call.h"
 
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#include <lib/abstractcontactbackend.h>
 
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///Constructor
 
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DelegateDropOverlay::DelegateDropOverlay(QObject* parent):QObject(parent),
 
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m_pTimer(0),m_Init(false),m_Reverse(1),m_lpButtons(nullptr)
 
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{
 
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   const QColor color = QApplication::palette().base().color();
 
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   const bool dark = (color.red() > 128 && color.green() > 128 && color.blue() > 128);
 
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   if (dark)
 
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      m_Pen.setColor("#f3f3f3");
 
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   else
 
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      m_Pen.setColor(Qt::white);
 
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}
 
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///Destructor
 
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DelegateDropOverlay::~DelegateDropOverlay()
 
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{
 
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   if (m_pTimer) delete m_pTimer;
 
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}
 
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///How to paint
 
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void DelegateDropOverlay::paintEvent(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index)
 
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{
 
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   if (!m_lpButtons)
 
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      return;
 
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   static bool initSignals = false;
 
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   if (!initSignals) {
 
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      connect(index.model(),SIGNAL(layoutChanged()),this,SLOT(slotLayoutChanged()));
 
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      initSignals = true;
 
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   }
 
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   int step = index.data(AbstractContactBackend::Role::DropState).toInt();
 
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   if ((step == 1 || step == -1) && m_lActiveIndexes.indexOf(index) == -1) {
 
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      m_lActiveIndexes << index;
 
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      //Create tge timer
 
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      if (!m_pTimer) {
 
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         m_pTimer = new QTimer(this);
 
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         connect(m_pTimer, SIGNAL(timeout()), this, SLOT(changeVisibility()));
 
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      }
 
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      //Start it if it's nor already
 
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      if (!m_pTimer->isActive()) {
 
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         m_pTimer->start(10);
 
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      }
 
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   }
 
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   int i =0;
 
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   QMapIterator<QString, OverlayButton*> it(*m_lpButtons);
 
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   const int dropPosition = index.data(Call::Role::DropPosition).toInt();
 
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   while (it.hasNext()) {
 
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      it.next();
 
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      if (step) {
 
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         const bool highlight = dropPosition == it.value()->role;
 
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         const int tmpStep = (step>0)?step:15+step;
 
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         painter->save();
 
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         painter->setOpacity(1);
 
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         painter->setRenderHint(QPainter::Antialiasing, true);
 
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         QPen pen = highlight?QApplication::palette().color(QPalette::Highlight): QColor(235,235,235,235);
 
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         pen.setWidth(1.5);
 
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         painter->setPen(pen);
 
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         QLinearGradient linearGrad(QPointF(0, 0), QPointF(0, 100));
 
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         linearGrad.setColorAt(0, QColor(130,130,130,(0.7*tmpStep*tmpStep)));
 
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         linearGrad.setColorAt(1, QColor(0,0,0,(0.75*tmpStep*tmpStep)));
 
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         painter->setBrush(linearGrad);
 
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         const QRect buttonRect = QRect(
 
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            option.rect.x()+(option.rect.width()/m_lpButtons->size())*i+4,
 
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            option.rect.y()+2,
 
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            option.rect.width()/m_lpButtons->size() - 10,
 
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            option.rect.height()-4);
 
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         painter->drawRoundedRect(buttonRect, 10, 10);
 
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         painter->setPen(highlight?QColor(Qt::white):m_Pen);
 
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         if (it.value()->m_pImage) {
 
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            painter->drawImage(QRect(
 
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               buttonRect.x()+buttonRect.width()-(buttonRect.height()-10)-10/*padding*/,
 
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               buttonRect.y()+5,
 
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               (buttonRect.height()-10),
 
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               (buttonRect.height()-10)),*it.value()->m_pImage);
 
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         }
 
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         QFont font = painter->font();
 
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         font.setBold(true);
 
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         painter->setFont(font);
 
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         painter->drawText (buttonRect, Qt::AlignVCenter|Qt::AlignHCenter, QString(it.key()).remove('&') );
 
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         painter->restore();
 
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         i++;
 
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         if (highlight) {
 
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            QColor col = pen.color();
 
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            for(int i=1;i<=4;i++) {
 
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               painter->setBrush(Qt::NoBrush);
 
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               pen.setWidth(i);
 
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               col.setAlpha(205*(0.5/((float)i)));
 
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               pen.setColor(col);
 
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               painter->setPen(pen);
 
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               painter->drawRoundedRect(buttonRect, 10, 10);
 
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            }
 
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         }
 
126
      }
 
127
   }
 
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}//paintEvent
 
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///Step by step animation
 
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void DelegateDropOverlay::changeVisibility()
 
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{
 
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   foreach(const QModelIndex& idx, m_lActiveIndexes) {
 
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      //There is a race condition when removing a conference participant
 
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      if (idx.isValid() && !idx.model()->rowCount(idx)) {
 
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         int step = idx.data(AbstractContactBackend::Role::DropState).toInt();
 
137
         //Remove items from the loop if there is no animation
 
138
         if (step >= 15 || step <= -15) {
 
139
            m_lActiveIndexes.removeAll(idx);
 
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            if (step <= -15) //Hide the overlay
 
141
               ((QAbstractItemModel*)idx.model())->setData(idx,QVariant((int)0),AbstractContactBackend::Role::DropState);
 
142
         }
 
143
         else {
 
144
            //Update opacity
 
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            step+=(step>0)?1:-1;
 
146
            ((QAbstractItemModel*)idx.model())->setData(idx,QVariant((int)step),AbstractContactBackend::Role::DropState);
 
147
         }
 
148
      }
 
149
   }
 
150
   //Stop loop if no animations are running
 
151
   if (!m_lActiveIndexes.size()) {
 
152
      m_pTimer->stop();
 
153
   }
 
154
}
 
155
 
 
156
///Prevent a race condition between the timer and model changes
 
157
void DelegateDropOverlay::slotLayoutChanged()
 
158
{
 
159
   m_lActiveIndexes.clear();
 
160
}