From 630dc679f1db5b25e669e97d2bc9fd4b3237cefd Mon Sep 17 00:00:00 2001
From: Ray-V <ray-v@inbox.lv>
Date: Mon, 22 Mar 2021 12:56:28 +0900
Subject: [PATCH] Fixed algorithm for CAPS text key visualization.

Signed-off-by: Ray-V <ray-v@inbox.lv>
Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit b1c1fd93a72134d2e450301926d0121a8f73529b)
---
 src/VButton.cpp       | 32 ++++++++++++++++++++++++++------
 src/VButton.h         |  4 +++-
 src/numpadvbutton.cpp |  2 +-
 3 files changed, 30 insertions(+), 8 deletions(-)

diff --git a/src/VButton.cpp b/src/VButton.cpp
index e44feba..41871cd 100644
--- a/src/VButton.cpp
+++ b/src/VButton.cpp
@@ -26,13 +26,21 @@ void VButton::shiftCapsPressed(bool shift, bool caps)
 	if (isAlpha)
 	{
 		// Alpha button, both shift and caps affect its state
-		if (shift ^ caps)
+		if (caps && shift)
+		{
+			TQPushButton::setText(capsShiftText);
+		}
+		else if (caps)
+		{
+			TQPushButton::setText(capsText);
+		}
+		else if (shift)
 		{
 			TQPushButton::setText(shiftText);
 		}
 		else
 		{
-			TQPushButton::setText(lowerText);
+			TQPushButton::setText(normalText);
 		}
 	}
 	else
@@ -44,7 +52,7 @@ void VButton::shiftCapsPressed(bool shift, bool caps)
 		}
 		else
 		{
-			TQPushButton::setText(lowerText);
+			TQPushButton::setText(normalText);
 		}
 	}
 }
@@ -54,13 +62,25 @@ void VButton::setText(const TQString& text)
 	// Need to set the pushbutton text to correctly handle those buttons which usually
 	// don't change (tab, shift, caps, Fn, ...)
 	TQPushButton::setText(text);
-	lowerText = text;
-	isAlpha = text.length() == 1 && (text.upper() != text);
+	normalText = text;
+	capsText = text.upper();
+	isAlpha = text.length() == 1 && capsText != normalText;
 }
 
 void VButton::setShiftText(const TQString& text)
 {
-	shiftText=text;
+	shiftText = text;
+	// 'text' is normally uppercase here, so in most cases we need to set capsShiftText
+	// to text.lower() to handle caps+shift correctly. Special cases like ç and Ç are
+	// handled by using text.upper()
+	if (text.lower() != text)
+	{
+		capsShiftText = text.lower();
+	}
+	else
+	{
+		capsShiftText = text.upper();
+	}
 }
 
 void VButton::setColor(const TQColor &color)
diff --git a/src/VButton.h b/src/VButton.h
index 349b403..481c077 100644
--- a/src/VButton.h
+++ b/src/VButton.h
@@ -30,8 +30,10 @@ protected:
 	bool inside;
 	bool isAlpha;
 	unsigned int keycode;
-	TQString lowerText;
+	TQString normalText;
+	TQString capsText;
 	TQString shiftText;
+	TQString capsShiftText;
 	TQRect orig_size;
 
 	void timerEvent ( TQTimerEvent * );
diff --git a/src/numpadvbutton.cpp b/src/numpadvbutton.cpp
index 2cb1773..b6b2a25 100644
--- a/src/numpadvbutton.cpp
+++ b/src/numpadvbutton.cpp
@@ -36,7 +36,7 @@ void NumpadVButton::numlockPressed(bool press)
 		TQPushButton::setText(shiftText);
 	}
 	else{
-		TQPushButton::setText(lowerText);
+		TQPushButton::setText(normalText);
 	}
 }