git.maemo.org Git - quick-widgets/blob - quickwidget.cpp

   1 #include <QtDeclarative>
   2 #include <QtMaemo5>
   3 #include <QtGui/QX11Info>
   4 #include <X11/Xlib.h>
   5 #include <X11/Xatom.h>
   6 #include <X11/Xutil.h>
   7 #include "quickwidget.hpp"
   8
   9 #define SETTING_QUICK_FILE "QuickWidgetFile"
  10 #define SETTING_QUICK_SIZE "QuickWidgetSize"
  11 #define SETTING_SAVE_WAITINTERVAL 3000
  12
  13 static Atom onCurrentHomescreenAtom;
  14 static bool _atomsInitialized = false;
  15
  16 QuickWidget *QuickWidget::createAndShowNew(const QString& fileName,
  17                                            const QSize& size)
  18 {
  19     QuickWidget *widget = new QuickWidget;
  20     widget->initView(fileName, size);
  21     widget->show();
  22     QeMaemo5DynamicWidgetHelper::globalInstance()->registerWidget(widget);
  23     return widget;
  24 }
  25
  26 void QuickWidget::initView(const QString& fileName, const QSize& size)
  27 {
  28     size_ = size;
  29     saveSetting(SETTING_QUICK_FILE, fileName);
  30     saveSetting(SETTING_QUICK_SIZE, size_);
  31     view_->setSource(QUrl::fromLocalFile(fileName));
  32     if ( view_->status() == QDeclarativeView::Error) {
  33         errorWidget();
  34     }
  35     else if (size_.isValid())
  36     {
  37         // use given fixed size and scale to it
  38         qDebug() << "scaling";
  39         view_->setResizeMode(QDeclarativeView::SizeRootObjectToView);
  40     }
  41     else
  42     {
  43         size_ = view_->sceneRect().size().toSize();
  44     }
  45     connect(view_, SIGNAL(sceneResized(QSize)), this, SLOT(resizer(QSize)));
  46
  47     view_->resize(size_);
  48     view_->show();
  49 }
  50
  51 QuickWidget::QuickWidget(QWidget *parent)
  52     : QeMaemo5DynamicHomescreenWidget(true, parent),
  53     size_(QSize()),
  54     view_(0)
  55 {
  56     if (!_atomsInitialized) {
  57        onCurrentHomescreenAtom = XInternAtom(QX11Info::display(),
  58                                              "_HILDON_APPLET_ON_CURRENT_DESKTOP",
  59                                              false);
  60        _atomsInitialized = true;
  61     }
  62     //layout()->setSizeConstraint(QLayout::SetNoConstraint);
  63     view_ = new QDeclarativeView(this);
  64     view_->setStyleSheet("background:transparent");
  65     view_->setAttribute(Qt::WA_TranslucentBackground);
  66     wrapper_ = new QuickWidgetWrapper(this);
  67     view_->rootContext()->setContextProperty("runtime", wrapper_);
  68 }
  69
  70 QuickWidget::~QuickWidget()
  71 {
  72     delete wrapper_;
  73 }
  74
  75 bool QuickWidget::x11Event(XEvent *event)
  76 {
  77     bool passon = QeMaemo5DynamicHomescreenWidget::x11Event(event);
  78
  79     if (event->xclient.message_type == onCurrentHomescreenAtom)
  80     {
  81         bool visible = isVisibleOnCurrentHomescreen() ;
  82         if (visible != wrapper_->onHomeScreen())
  83         {
  84             wrapper_->setOnHomeScreen(visible);
  85         }
  86     }
  87     return passon;
  88 }
  89
  90 bool QuickWidget::restoreWidgetState()
  91 {
  92     QString fileName = loadSetting(SETTING_QUICK_FILE).toString();
  93     QSize size = loadSetting(SETTING_QUICK_SIZE, QSize()).value<QSize>();
  94     initView(fileName, size);
  95     return true;
  96 }
  97
  98 void QuickWidget::errorWidget()
  99 {
 100     const QList<QDeclarativeError>& errs = view_->errors();
 101     qDebug() << errs;
 102     QByteArray errmsg;
 103     QTextStream qts(&errmsg);
 104     qts << "import Qt 4.7" << endl
 105         << "Rectangle { width: 200; height: txt.height; color: \"#ff0000\"; radius: 8" << endl
 106         << "Text { id: txt; anchors.centerIn: parent; text: \"";
 107     for (int i = 0; i < errs.size(); ++i) {
 108         qts << errs.at(i).toString().replace(QString("\""), QString("\\\"")) <<
 109 endl;
 110     }
 111     qts << "\"; font.pixelSize: 15; wrapMode: Text.Wrap; width: parent.width-20}" << endl
 112         << "}" << endl;
 113     qDebug() <<  errmsg;
 114     QDeclarativeComponent component(view_->engine());
 115     component.setData(errmsg, QUrl());
 116     qDebug() << component.errorString();
 117     QDeclarativeItem *errwdgt =
 118       qobject_cast<QDeclarativeItem*>(component.create(view_->rootContext()));
 119     view_->scene()->addItem(errwdgt);
 120     size_ = QSize(errwdgt->width(), errwdgt->height());
 121 }
 122
 123 void QuickWidget::paintEvent(QPaintEvent *event)
 124 {
 125     QWidget::paintEvent(event);
 126 }
 127
 128 void QuickWidget::resizer( QSize size)
 129 {
 130   if (size_.isValid())
 131   {
 132       resize(size);
 133   }
 134 }
 135