Reverted WFM mode to working state

TXView in ADSB TX
Lockable TXView
POCSAG TX bugfix with Alphanum and Numeric only
Testing Labels widget

firmware/common/pocsag.cpp

@@ -110,7 +110,7 @@ void pocsag_encode(
 	size_t b, c, address_slot;
 	size_t bit_idx, char_idx = 0;
 	uint32_t codeword, digit_code;
-	char ascii_char;
+	char ascii_char = 0;
 	
 	size_t message_size = message.size();
 	
@@ -140,6 +140,7 @@ void pocsag_encode(
 	
 	if (type == MessageType::ADDRESS_ONLY) return;	// Done.
 	
+	c++;
 	codeword = 0;
 	bit_idx = 20 + 11;
 	

firmware/common/ui_widget.cpp

@@ -349,6 +349,32 @@ void Text::paint(Painter& painter) {
 	);
 }
 
+/* Labels ****************************************************************/
+
+Labels::Labels(
+	std::vector<Label> * labels
+) : labels_ { labels }
+{
+}
+
+void Labels::set_labels(std::vector<Label> * const labels) {
+	labels_ = labels;
+	set_dirty();
+}
+
+void Labels::paint(Painter& painter) {
+	/*const auto rect = screen_rect();
+	const auto s = style();
+
+	painter.fill_rectangle(rect, s.background);
+
+	painter.draw_string(
+		rect.location(),
+		s,
+		text
+	);*/
+}
+
 /* BigFrequency **********************************************************/
 
 const uint8_t big_segment_font[11] = {

firmware/common/ui_widget.hpp

@@ -211,6 +211,29 @@ private:
 	std::string text;
 };
 
+class Labels : public Widget {
+public:
+	struct Label {
+		Point pos;
+		std::string text;
+		ui::Color color;
+	};
+	
+	Labels(const Labels&) = delete;
+	Labels(Labels&&) = delete;
+	Labels& operator=(const Labels&) = delete;
+	Labels& operator=(Labels&&) = delete;
+
+	Labels(std::vector<Label> * labels);
+
+	void set_labels(std::vector<Label> * const labels);
+
+	void paint(Painter& painter) override;
+
+private:
+	std::vector<Label> * labels_;
+};
+
 class BigFrequency : public Widget {
 public:
 	BigFrequency(Rect parent_rect, rf::Frequency frequency);
@@ -294,7 +317,7 @@ private:
 	std::string text_;
 	bool small_ { false };
 	bool value_ { false };
-	const Style* style_ { nullptr };
+	const Style * style_ { nullptr };
 };
 
 class Button : public Widget {