workspace/libs/plasma/dialog.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by Alexis Ménard <darktears31@gmail.com>           *
   3  *   Copyright (C) 2007 Sebastian Kuegler <sebas@kde.org>                  *
   4  *   Copyright (C) 2006 Aaron Seigo <aseigo@kde.org>                               *
   5  *                                                                         *
   6  *   This program is free software; you can redistribute it and/or modify  *
   7  *   it under the terms of the GNU General Public License as published by  *
   8  *   the Free Software Foundation; either version 2 of the License, or     *
   9  *   (at your option) any later version.                                   *
  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     *
  17  *   along with this program; if not, write to the                         *
  18  *   Free Software Foundation, Inc.,                                       *
  19  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA .        *
  20  ***************************************************************************/
  21
  22 #include "dialog.h"
  23
  24 #include <QPainter>
  25 #include <QSvgRenderer>
  26 #include <QResizeEvent>
  27 #include <QMouseEvent>
  28 #ifdef Q_WS_X11
  29 #include <QX11Info>
  30 #endif
  31 #include <QGraphicsView>
  32 #include <QtGui/QGraphicsSceneEvent>
  33
  34 #include <KDebug>
  35 #include <NETRootInfo>
  36
  37 #include <plasma/svgpanel.h>
  38 #include <plasma/theme.h>
  39
  40 #ifdef Q_WS_X11
  41 #include <X11/Xlib.h>
  42 #endif
  43
  44
  45 namespace Plasma
  46 {
  47
  48 class Dialog::Private
  49 {
  50 public:
  51     /**
  52      * Holds the background SVG, to be re-rendered when the cache is invalidated,
  53      * for example by resizing the dialogue.
  54      */
  55     Plasma::SvgPanel *background;
  56 };
  57
  58 Dialog::Dialog( QWidget * parent, Qt::WindowFlags f )
  59     : QWidget(parent, f),
  60       d(new Private)
  61 {
  62     d->background = new SvgPanel("dialogs/background", this);
  63     d->background->setBorderFlags(SvgPanel::DrawAllBorders);
  64     d->background->resize(size());
  65
  66     connect(d->background, SIGNAL(repaintNeeded()), this, SLOT(update()));
  67
  68     connect(Plasma::Theme::self(), SIGNAL(changed()), this, SLOT(themeUpdated()));
  69     themeUpdated();
  70 }
  71
  72 Dialog::~Dialog()
  73 {
  74 }
  75
  76 void Dialog::themeUpdated()
  77 {
  78     const int topHeight = d->background->marginSize(Plasma::TopMargin);
  79     const int leftWidth = d->background->marginSize(Plasma::LeftMargin);
  80     const int rightWidth = d->background->marginSize(Plasma::RightMargin);
  81     const int bottomHeight = d->background->marginSize(Plasma::BottomMargin);
  82     setContentsMargins(leftWidth, topHeight, rightWidth, bottomHeight);
  83 }
  84
  85 void Dialog::paintEvent(QPaintEvent *e)
  86 {
  87     QPainter p(this);
  88     p.setRenderHint(QPainter::Antialiasing);
  89     p.setClipRect(e->rect());
  90     p.setCompositionMode(QPainter::CompositionMode_Source );
  91     p.fillRect(rect(), Qt::transparent);
  92     d->background->paint(&p, e->rect());
  93 }
  94
  95 void Dialog::resizeEvent(QResizeEvent *e)
  96 {
  97     d->background->resize(e->size());
  98 }
  99
 100 void Dialog::position(QGraphicsSceneEvent *event, const QRectF boundingRect, QPointF scenePos)
 101 {
 102     QWidget *viewWidget = event->widget() ? event->widget()->parentWidget() : 0;
 103     //QPointF scenePos = mapToScene(boundingRect.topLeft());
 104     QGraphicsView *view = qobject_cast<QGraphicsView*>(viewWidget);
 105     position(view,boundingRect,scenePos);
 106 }
 107
 108 void Dialog::position(QGraphicsView * view,const QRectF boundingRect,QPointF scenePos)
 109 {
 110     if (view) {
 111         QPoint viewPos = view->mapFromScene(scenePos);
 112         QPoint globalPos = view->mapToGlobal(viewPos);
 113         if ((globalPos.ry()-height())< 0) {
 114         scenePos = QPointF(scenePos.x() + boundingRect.width(), scenePos.y() + boundingRect.height());
 115         viewPos = view->mapFromScene(scenePos);
 116         globalPos = view->mapToGlobal(viewPos)+QPoint(0,10);
 117         }
 118         else {
 119             globalPos.ry() -= (height()+10);
 120         }
 121         if ((globalPos.rx() + width()) > view->width()) {
 122             globalPos.rx()-=((globalPos.rx() + width())-view->width());
 123         }
 124         move(globalPos);
 125         kDebug() << globalPos;
 126     }
 127 }
 128
 129 }
 130 #include "dialog.moc"