init
[qstardict] / qstardict / selection.cpp
diff --git a/qstardict/selection.cpp b/qstardict/selection.cpp
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+/*****************************************************************************
+ * selection.cpp - QStarDict, a StarDict clone written with using Qt         *
+ * Copyright (C) 2007 Alexander Rodin                                        *
+ *                                                                           *
+ * This program is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License as published by      *
+ * the Free Software Foundation; either version 2 of the License, or         *
+ * (at your option) any later version.                                       *
+ *                                                                           *
+ * This program is distributed in the hope that it will be useful,           *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             *
+ * GNU General Public License for more details.                              *
+ *                                                                           *
+ * You should have received a copy of the GNU General Public License along   *
+ * with this program; if not, write to the Free Software Foundation, Inc.,   *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.               *
+ *****************************************************************************/
+
+#include "selection.h"
+
+#ifdef Q_WS_WIN
+#include <windows.h>
+
+namespace
+{
+
+QString currentSelection()
+{
+    POINT Point;
+    HWND hWindow;
+    DWORD dwStart, dwEnd;
+    char szWindowText[256];
+
+    if (! GetCursorPos(&Point))
+        return QString();
+
+    if( ! (hWindow = WindowFromPoint(Point)))
+        return QString();
+
+    SendMessage(hWindow, WM_GETTEXT, 256, (LPARAM)szWindowText);
+    SendMessage(hWindow, EM_GETSEL, (WPARAM)&dwStart, (LPARAM)&dwEnd);
+
+    return QString::fromLocal8Bit(szWindowText);
+}
+
+}
+
+#else // Q_WS_WIN
+
+#include <QApplication>
+#include <QClipboard>
+
+namespace
+{
+
+inline QString currentSelection()
+{ return QApplication::clipboard()->text(QClipboard::Selection); }
+
+}
+
+#endif // Q_WS_WIN
+
+namespace QStarDict
+{
+
+Selection::Selection(QObject *parent)
+    : QObject(parent)
+{
+    m_scan = false;
+    m_timerId = 0;
+}
+
+void Selection::setScan(bool scan)
+{
+    if (m_scan == scan)
+        return;
+
+    m_scan = scan;
+    if (m_scan)
+    {
+        m_lastState = currentSelection();
+        m_timerId = startTimer(300);
+    }
+    else
+        killTimer(m_timerId);
+}
+
+void Selection::timerEvent(QTimerEvent*)
+{
+    if (m_lastState != currentSelection())
+    {
+        m_lastState = currentSelection();
+        emit changed(m_lastState);
+    }
+}
+
+}
+
+// vim: tabstop=4 softtabstop=4 shiftwidth=4 expandtab cindent textwidth=120 formatoptions=tc
+