Added support for AltGr characters. This resolves issue #11.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit 85af0341dc)

src/MainWidget.cpp

@@ -197,7 +197,7 @@ MainWidget::MainWidget ( TDEAboutData *about, bool tren, TQWidget *parent, const
 	caps->resize ( 63,30 );
 	caps->setText ( "Caps" );
 	caps->setToggleButton ( true );
-	connect ( caps,TQT_SIGNAL ( keyClick ( unsigned int ) ), this, TQT_SLOT ( toggleShift ( unsigned int ) ) );
+	connect ( caps,TQT_SIGNAL ( keyClick ( unsigned int ) ), this, TQT_SLOT ( toggleShiftCapsAltGr ( unsigned int ) ) );
 	other_keys.append(caps);
 	caps->res();
 
@@ -246,7 +246,7 @@ MainWidget::MainWidget ( TDEAboutData *about, bool tren, TQWidget *parent, const
 	lshift->resize ( 45,30 );
 	lshift->setText ( "Shift" );
 	lshift->setToggleButton ( true );
-	connect ( lshift,TQT_SIGNAL ( keyClick ( unsigned int ) ), this, TQT_SLOT ( toggleShift( unsigned int ) ) );
+	connect ( lshift,TQT_SIGNAL ( keyClick ( unsigned int ) ), this, TQT_SLOT ( toggleShiftCapsAltGr( unsigned int ) ) );
 	mod_keys.append ( lshift );
 	lshift->res();
 
@@ -295,7 +295,7 @@ MainWidget::MainWidget ( TDEAboutData *about, bool tren, TQWidget *parent, const
 	rshift->resize ( 68,30 );
 	rshift->setText ( "Shift" );
 	rshift->setToggleButton ( true );
-	connect ( rshift,TQT_SIGNAL ( keyClick ( unsigned int ) ), this, TQT_SLOT ( toggleShift( unsigned int ) ) );
+	connect ( rshift,TQT_SIGNAL ( keyClick ( unsigned int ) ), this, TQT_SLOT ( toggleShiftCapsAltGr( unsigned int ) ) );
 	mod_keys.append ( rshift );
 	rshift->res();
 
@@ -342,6 +342,7 @@ MainWidget::MainWidget ( TDEAboutData *about, bool tren, TQWidget *parent, const
 	ralt->setText ( "AltGr" );
 	ralt->setKeyCode ( 108 );
 	ralt->setToggleButton ( true );
+	connect ( ralt,TQT_SIGNAL ( keyClick ( unsigned int ) ), this, TQT_SLOT ( toggleShiftCapsAltGr ( unsigned int ) ) );
 	mod_keys.append ( ralt );
 	ralt->res();
 
@@ -849,19 +850,20 @@ void MainWidget::updateNumlock()
 	}
 }
 
-void MainWidget::toggleShift(unsigned int keycode)
+void MainWidget::toggleShiftCapsAltGr(unsigned int keycode)
 {
 	send_key(keycode);
-	updateShiftCaps();
+	updateShiftCapsAltGr();
 }
 
-void MainWidget::updateShiftCaps()
+void MainWidget::updateShiftCapsAltGr()
 {
 	bool shiftState = lshift->isOn() || rshift->isOn();
 	bool capsState = caps->isOn();
+	bool altGrState = ralt->isOn();
 	for (unsigned a = 0; a < btns.size();	a++)
 	{
-		btns[a]->shiftCapsPressed(shiftState, capsState);
+		btns[a]->shiftCapsAltGrPressed(shiftState, capsState, altGrState);
 	}
 }
 
@@ -873,7 +875,7 @@ void MainWidget::keyPress(unsigned int a)
 		mod_keys[a]->setOn(false);
 	}
 	// Make sure the key labels	are correctly updated
-	updateShiftCaps();
+	updateShiftCapsAltGr();
 }
 
 void MainWidget::send_key(unsigned int keycode)
@@ -926,7 +928,7 @@ void MainWidget::queryModState()
 	if (caps_state != caps->isOn())
 	{
 		caps->setOn(caps_state);
-		updateShiftCaps();
+		updateShiftCapsAltGr();
 	}
 
 	bool numl_state = keyState(XK_Num_Lock);
@@ -944,7 +946,7 @@ void MainWidget::mappingNotify(XMappingEvent *)
 		btns[a]->setupTexts(display);
 	}
 	updateNumlock();
-	updateShiftCaps();
+	updateShiftCapsAltGr();
 }
 
 KbdDock::KbdDock ( MainWidget *m )

src/MainWidget.h

@@ -51,7 +51,7 @@ public:
 public slots:
 	void keyPress(unsigned int keycode);
 	void toggleNumlock();
-	void toggleShift(unsigned int keycode);
+	void toggleShiftCapsAltGr(unsigned int keycode);
 	void toggleNumericPad();
 	void toggleFontAutoRes();
 	void toggleLock();
@@ -73,7 +73,7 @@ protected:
 private:
 	void updateFont();
 	void updateNumlock();
-	void updateShiftCaps();
+	void updateShiftCapsAltGr();
 
 	bool nresize;
 

src/VButton.cpp

@@ -28,61 +28,112 @@ void VButton::setupTexts(Display *display)
 {
 	// normal text
 	KeySym keysym_c = XkbKeycodeToKeysym(display, keycode, 0, 0);
-	TQChar c((uint)keysym2ucs(keysym_c));
-	if (c == '&')
+	TQChar nc((uint)keysym2ucs(keysym_c));
+	if (nc == '&')
 	{
 		setText("&&");
 	}
 	else
 	{
-		setText(c);
+		setText(nc);
 	}
 
 	// shift text
 	keysym_c = XkbKeycodeToKeysym(display, keycode, 0, 1);
+	TQChar sc = (uint)keysym2ucs(keysym_c);
+	if (sc == '&')
+	{
+		setShiftText("&&");
+	}
+	else
+	{
+		setShiftText(sc);
+	}
+
+	// altGr text
+	keysym_c = XkbKeycodeToKeysym(display, keycode, 0, 2);
+	TQChar c = (uint)keysym2ucs(keysym_c);
+	if (c == " ")
+	{
+		// use normal text in case altGr does not provide extra characters.
+		// This is required at least on US keyboards, where altGr works as Alt.
+		c = nc;
+	}
+	if (c == '&')
+	{
+		altGrText = "&&";
+	}
+	else
+	{
+		altGrText = c;
+	}
+
+	// altGr + shift text
+	keysym_c = XkbKeycodeToKeysym(display, keycode, 0, 3);
 	c = (uint)keysym2ucs(keysym_c);
+	if (c == " ")
+	{
+		// use shift text in case altGr does not provide extra characters.
+		// This is required at least on US keyboards, where altGr works as Alt.
+		c = sc;
+	}
 	if (c == '&')
 	{
-		setShiftText("&&");
+		altGrShiftText = "&&";
 	}
 	else
 	{
-		setShiftText(c);
+		altGrShiftText = c;
 	}
 }
 
-void VButton::shiftCapsPressed(bool shift, bool caps)
+void VButton::shiftCapsAltGrPressed(bool shift, bool caps, bool altGrState)
 {
-	if (isAlpha)
+	if (altGrState)
 	{
-		// Alpha button, both shift and caps affect its state
-		if (caps && shift)
-		{
-			TQPushButton::setText(capsShiftText);
-		}
-		else if (caps)
-		{
-			TQPushButton::setText(capsText);
-		}
-		else if (shift)
+		// Caps does not seem to make any difference when AltGr is pressed
+		if (shift)
 		{
-			TQPushButton::setText(shiftText);
+			TQPushButton::setText(altGrShiftText);
 		}
 		else
 		{
-			TQPushButton::setText(normalText);
+			TQPushButton::setText(altGrText);
 		}
 	}
 	else
 	{
-		// Non alpha button, only shift affects its state
-		if (shift)
+		if (isAlpha)
 		{
-			TQPushButton::setText(shiftText);
+			// Alpha button, both shift and caps affect its state
+			if (caps && shift)
+			{
+				TQPushButton::setText(capsShiftText);
+			}
+			else if (caps)
+			{
+				TQPushButton::setText(capsText);
+			}
+			else if (shift)
+			{
+				TQPushButton::setText(shiftText);
+			}
+			else
+			{
+				TQPushButton::setText(normalText);
+			}
 		}
 		else
 		{
-			TQPushButton::setText(normalText);
+			// Non alpha button, only shift affects its state
+			if (shift)
+			{
+				TQPushButton::setText(shiftText);
+			}
+			else
+			{
+				TQPushButton::setText(normalText);
+			}
 		}
 	}
 }

src/VButton.h

@@ -34,14 +34,16 @@ protected:
 	TQString normalText;
 	TQString capsText;
 	TQString shiftText;
+	TQString altGrText;
 	TQString capsShiftText;
+	TQString altGrShiftText;
 	TQRect orig_size;
 
 	void timerEvent ( TQTimerEvent * );
 
 public slots:
 	void sendKey();
-	void shiftCapsPressed(bool shift, bool caps);
+	void shiftCapsAltGrPressed(bool shift, bool caps, bool altGrState);
 
 protected slots:
 	void enterEvent(TQEvent *e);