Jos�'s qt-immodule fixes (bug 1830)

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@9979 a592a061-630c-0410-9148-cb99ea01b6c8

src/frontends/qt2/ChangeLog

@@ -1,3 +1,10 @@
+2005-05-28  José Matos  <jamatos@lyx.org>
+
+	* QContentPane.[Ch]: implement QIM*Events. This brings the dead
+	keys back into play on systems compiled against a qt-immodule-
+	patched Qt [bug 1830].
+
+
 2005-06-20  Michael Schmitt  <michael.schmitt@teststep.org>
 
 	* QPrefsDialog.C:

src/frontends/qt2/QContentPane.C

@@ -93,6 +93,10 @@ QContentPane::QContentPane(QWorkArea * parent)
 	setFocusPolicy(QWidget::WheelFocus);
 	setFocus();
 	setCursor(ibeamCursor);
+#if QT_VERSION >= 0x030200
+	// to make qt-immodule work
+	setInputMethodEnabled(true);
+#endif
 
 	// stupid moc strikes again
 	connect(wa_->scrollbar_, SIGNAL(valueChanged(int)),
@@ -100,6 +104,37 @@ QContentPane::QContentPane(QWorkArea * parent)
 }
 
 
+#if QT_VERSION >= 0x030200
+// to make qt-immodule work
+void QContentPane::imStartEvent(QIMEvent *e)
+{
+	e->accept();
+}
+
+
+void QContentPane::imComposeEvent(QIMEvent *e)
+{
+	e->accept();
+}
+
+
+void QContentPane::imEndEvent(QIMEvent *e)
+{
+	QString const text = e->text();
+	if (!text.isEmpty()) {
+		int key = 0;
+		// needed to make math superscript work on some systems
+		// ideally, such special coding should not be necessary
+		if (text == "^")
+			key = Qt::Key_AsciiCircum;
+		QKeyEvent ev(QEvent::KeyPress, key, *text.ascii(), 0, text);
+		keyPressEvent(&ev);
+	}
+	e->accept();
+}
+#endif
+
+
 void QContentPane::generateSyntheticMouseEvent()
 {
 	// Set things off to generate the _next_ 'pseudo' event.

src/frontends/qt2/QContentPane.h

@@ -101,6 +101,12 @@ protected:
 	void wheelEvent(QWheelEvent * e);
 	/// key press
 	void keyPressEvent(QKeyEvent * e);
+#if QT_VERSION >= 0x030200
+	/// IM events
+	void imStartEvent(QIMEvent *);
+	void imComposeEvent(QIMEvent *);
+	void imEndEvent(QIMEvent *);
+#endif
 public slots:
 	void doubleClickTimeout();