Added base support of multi-screen systems.

Manager.cpp

@@ -5,6 +5,7 @@
 #include <QApplication>
 #include <QDesktopWidget>
 #include <QScreen>
+#include <QDesktopWidget>
 #include <QThread>
 #include <QSettings>
 #include <QClipboard>
@@ -24,7 +25,6 @@ Manager::Manager (QObject *parent) :
   QObject (parent),
   trayIcon_ (new QSystemTrayIcon (QIcon (":/images/icon.png"), this)),
   dictionary_ (new LanguageHelper),
-  selection_ (new SelectionDialog (*dictionary_)),
   resultDialog_ (new ResultDialog),
   captureAction_ (NULL), repeatAction_ (NULL), clipboardAction_ (NULL),
   useResultDialog_ (true) {
@@ -33,7 +33,7 @@ Manager::Manager (QObject *parent) :
 
   // Recognizer
   Recognizer *recognizer = new Recognizer;
-  connect (selection_, SIGNAL (selected (ProcessingItem)),
+  connect (this, SIGNAL (selected (ProcessingItem)),
            recognizer, SLOT (recognize (ProcessingItem)));
   connect (recognizer, SIGNAL (error (QString)),
            SLOT (showError (QString)));
@@ -61,12 +61,7 @@ Manager::Manager (QObject *parent) :
   connect (translator, SIGNAL (translated (ProcessingItem)),
            SLOT (showResult (ProcessingItem)));
 
-  connect (this, SIGNAL (showPixmap (QPixmap)),
-           selection_, SLOT (setPixmap (QPixmap)));
-
-  connect (this, SIGNAL (settingsEdited ()), selection_, SLOT (updateMenu ()));
   connect (this, SIGNAL (settingsEdited ()), this, SLOT (applySettings ()));
-  selection_->setWindowIcon (trayIcon_->icon ());
   resultDialog_->setWindowIcon (trayIcon_->icon ());
 
 
@@ -136,13 +131,24 @@ Manager::~Manager () {
 
 void Manager::capture () {
   QList<QScreen *> screens = QApplication::screens ();
-  ST_ASSERT (!screens.isEmpty ());
-  QScreen *screen = screens.first ();
-  Q_CHECK_PTR (screen);
-  WId desktopId = QApplication::desktop ()->winId ();
-  QPixmap pixmap = screen->grabWindow (desktopId);
-  ST_ASSERT (!pixmap.isNull ());
-  emit showPixmap (pixmap);
+  foreach (QScreen * screen, screens) {
+    QRect geometry = screen->availableGeometry ();
+    QPixmap pixmap = screen->grabWindow (0, geometry.x (), geometry.y (),
+                                         geometry.width (), geometry.height ());
+    QString name = screen->name ();
+    if (!selections_.contains (name)) {
+      SelectionDialog *selection = new SelectionDialog (*dictionary_);
+      selection->setWindowIcon (trayIcon_->icon ());
+      connect (this, SIGNAL (closeSelections ()), selection, SLOT (close ()));
+      connect (this, SIGNAL (settingsEdited ()), selection, SLOT (updateMenu ()));
+      connect (selection, SIGNAL (selected (ProcessingItem)), SIGNAL (selected (ProcessingItem)));
+      connect (selection, SIGNAL (selected (ProcessingItem)), SIGNAL (closeSelections ()));
+      connect (selection, SIGNAL (rejected ()), SIGNAL (closeSelections ()));
+      selections_[name] = selection;
+    }
+    SelectionDialog *selection = selections_[name];
+    selection->setPixmap (pixmap, geometry);
+  }
 }
 
 void Manager::settings () {

Manager.h

@@ -3,6 +3,7 @@
 
 #include <QPixmap>
 #include <QSystemTrayIcon>
+#include <QMap>
 
 #include "ProcessingItem.h"
 
@@ -21,7 +22,8 @@ class Manager : public QObject {
     ~Manager ();
 
   signals:
-    void showPixmap (QPixmap pixmap);
+    void selected (ProcessingItem item);
+    void closeSelections ();
     void settingsEdited ();
 
   private slots:
@@ -46,7 +48,8 @@ class Manager : public QObject {
   private:
     QSystemTrayIcon *trayIcon_;
     LanguageHelper *dictionary_;
-    SelectionDialog *selection_;
+    //! Selection dialogs for each screen. Key - screen name.
+    QMap<QString, SelectionDialog *> selections_;
     ResultDialog *resultDialog_;
     QAction *captureAction_;
     QAction *repeatAction_;

SelectionDialog.cpp

@@ -120,20 +120,20 @@ bool SelectionDialog::eventFilter (QObject *object, QEvent *event) {
           ST_ASSERT (!item.sourceLanguage.isEmpty ());
         }
         emit selected (item);
-        accept ();
       }
     }
   }
   return QDialog::eventFilter (object, event);
 }
 
-void SelectionDialog::setPixmap (QPixmap pixmap) {
+void SelectionDialog::setPixmap (QPixmap pixmap, const QRect &showGeometry) {
   ST_ASSERT (!pixmap.isNull ());
+  ST_ASSERT (!showGeometry.isEmpty ());
   currentPixmap_ = pixmap;
   QPalette palette = this->palette ();
   palette.setBrush (this->backgroundRole (), pixmap);
   this->setPalette (palette);
-  this->resize (pixmap.size ());
+  this->setGeometry (showGeometry);
 
   show ();
   setFocus ();

SelectionDialog.h

@@ -23,9 +23,11 @@ class SelectionDialog : public QDialog {
 
   signals:
     void selected (ProcessingItem pixmap);
+    void nothingSelected ();
 
   public slots:
-    void setPixmap (QPixmap pixmap);
+    //! Show pixmap with given geometry.
+    void setPixmap (QPixmap pixmap, const QRect &showGeometry);
     void updateMenu ();
 
   private: