Some string(widget->text()) fixes. Weirdness

[lyx.git] / src / frontends / qt2 / QWorkArea.C

diff --git a/src/frontends/qt2/QWorkArea.C b/src/frontends/qt2/QWorkArea.C
index b14372c1c0f4e81f8830c31848fa5acd80d2ee0a..3c3d8197c3be386d8974593755d93bd68c6b55b2 100644 (file)
--- a/src/frontends/qt2/QWorkArea.C
+++ b/src/frontends/qt2/QWorkArea.C
@@ -1,9 +1,11 @@
 /**
  * \file QWorkArea.C
- * Copyright 1995-2002 the LyX Team
- * Read the file COPYING
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
  *
- * \author John Levon <moz@compsoc.man.ac.uk>
+ * \author John Levon
+ *
+ * Full author contact details are available in file CREDITS
  */
 
 #include <config.h>
@@ -14,30 +16,33 @@
 
 #include "debug.h"
 #include "LyXView.h"
-#include "lyxrc.h" // lyxrc.show_banner
 #include "version.h" // lyx_version
 
 #include "support/filetools.h" // LibFileSearch
 #include "support/lstrings.h"
 #include "support/LAssert.h"
 
-#include <cmath>
-#include <cctype>
-
 #include "QWorkArea.h"
- 
+
 #include <qapplication.h>
-#include <qevent.h> 
+#include <qevent.h>
 #include <qpainter.h>
 #include <qmainwindow.h>
 #include <qlayout.h>
 #include <qclipboard.h>
- 
+
+#ifdef Q_WS_X11
+#include <X11/Xlib.h>
+#endif
+
+#include <cmath>
+#include <cctype>
+
 using std::endl;
 using std::abs;
 using std::hex;
 
- 
+
 QWorkArea::QWorkArea(int, int, int, int)
        : WorkArea(), QWidget(qApp->mainWidget()), painter_(*this)
 {
@@ -45,7 +50,9 @@ QWorkArea::QWorkArea(int, int, int, int)
        content_ = new QContentPane(this);
 
        (static_cast<QMainWindow*>(qApp->mainWidget()))->setCentralWidget(this);
- 
+
+       setFocusProxy(content_);
+
        content_->show();
 
        content_->setBackgroundColor(lcolor.getX11Name(LColor::background).c_str());
@@ -53,7 +60,7 @@ QWorkArea::QWorkArea(int, int, int, int)
        QHBoxLayout * vl = new QHBoxLayout(this);
        vl->addWidget(content_, 5);
        vl->addWidget(scrollbar_, 0);
- 
+
        show();
 }
 
@@ -67,33 +74,72 @@ void QWorkArea::setScrollbarParams(int h, int pos, int line_h)
 {
        // do what cursor movement does (some grey)
        h += height() / 4;
- 
-       int max = h - height();
-       if (max < 0)
-               max = 0;
+
+       int max = std::max(0, h - height());
+
        scrollbar_->setRange(0, max);
        scrollbar_->setValue(pos);
        scrollbar_->setLineStep(line_h);
        scrollbar_->setPageStep(height());
 }
 
+namespace {
+QWorkArea const * wa_ptr = 0;
+}
 
-void QWorkArea::haveSelection(bool) const
+#ifdef Q_WS_X11
+bool lyxX11EventFilter(XEvent * xev)
 {
-       // not possible in Qt !
+       switch (xev->type) {
+       case SelectionRequest:
+               lyxerr[Debug::GUI] << "X requested selection." << endl;
+               if (wa_ptr)
+                       wa_ptr->selectionRequested();
+               break;
+       case SelectionClear:
+               lyxerr[Debug::GUI] << "Lost selection." << endl;
+               if (wa_ptr)
+                       wa_ptr->selectionLost();
+               break;
+       }
+       return false;
 }
+#endif
 
- 
-string const QWorkArea::getClipboard() const 
+void QWorkArea::haveSelection(bool own) const
 {
-       QString str = QApplication::clipboard()->text(); 
+       wa_ptr = this;
+
+#if QT_VERSION >= 300
+       if (!QApplication::clipboard()->supportsSelection())
+               return;
+
+       if (own) {
+               QApplication::clipboard()->setSelectionMode(true);
+               QApplication::clipboard()->setText(QString());
+       }
+       // We don't need to do anything if own = false, as this case is
+       // handled by QT.
+#endif
+}
+
+
+string const QWorkArea::getClipboard() const
+{
+#if QT_VERSION >= 300
+       QApplication::clipboard()->setSelectionMode(true);
+#endif
+       QString str = QApplication::clipboard()->text();
        if (str.isNull())
                return string();
        return str.latin1();
 }
 
-       
+
 void QWorkArea::putClipboard(string const & str) const
 {
+#if QT_VERSION >= 300
+       QApplication::clipboard()->setSelectionMode(true);
+#endif
        QApplication::clipboard()->setText(str.c_str());
 }