Merge branch 'tracerestrict-sx' into jgrpp

# Conflicts:
#	src/lang/english.txt
#	src/settings_gui.cpp
#	src/settings_type.h
#	src/table/settings.ini
#	src/vehicle_gui.cpp

src/lang/english.txt

@@ -1305,6 +1305,8 @@ STR_CONFIG_SETTING_SHOW_TRAIN_LENGTH_IN_DETAILS                 :Show train leng
 STR_CONFIG_SETTING_SHOW_TRAIN_LENGTH_IN_DETAILS_HELPTEXT        :Show train length in the vehicle details window
 STR_CONFIG_SETTING_SHOW_VEHICLE_GROUP_IN_DETAILS                :Show vehicle group in details: {STRING2}
 STR_CONFIG_SETTING_SHOW_VEHICLE_GROUP_IN_DETAILS_HELPTEXT       :Show vehicle group name in the vehicle details window
+STR_CONFIG_SETTING_SHOW_TRAIN_WEIGHT_RATIOS_IN_DETAILS          :Show train weight ratios in details: {STRING2}
+STR_CONFIG_SETTING_SHOW_TRAIN_WEIGHT_RATIOS_IN_DETAILS_HELPTEXT :Show train weight ratios in the vehicle details window
 STR_CONFIG_SETTING_SHOW_RESTRICTED_SIG_DEF                      :Show restricted electric signals using default graphics: {STRING2}
 STR_CONFIG_SETTING_SHOW_RESTRICTED_SIG_DEF_HELPTEXT             :Show electric signals with routing restriction programs using the default signal graphics with a blue signal post, instead of using any NewGRF signal graphics. This is to make it easier to visually distinguish restricted signals.
 
@@ -2548,8 +2550,8 @@ STR_TRACE_RESTRICT_CONDITIONAL_COMPARE_SPEED                    :{STRING} {STRIN
 STR_TRACE_RESTRICT_CONDITIONAL_COMPARE_WEIGHT                   :{STRING} {STRING} {STRING} {WEIGHT_SHORT} then
 STR_TRACE_RESTRICT_CONDITIONAL_COMPARE_POWER                    :{STRING} {STRING} {STRING} {POWER} then
 STR_TRACE_RESTRICT_CONDITIONAL_COMPARE_FORCE                    :{STRING} {STRING} {STRING} {FORCE} then
-STR_TRACE_RESTRICT_CONDITIONAL_COMPARE_POWER_WEIGHT_RATIO       :{STRING} {STRING} {STRING} {POWER} / {STRING1} then
+STR_TRACE_RESTRICT_CONDITIONAL_COMPARE_POWER_WEIGHT_RATIO       :{STRING} {STRING} {STRING} {POWER_WEIGHT_RATIO} then
-STR_TRACE_RESTRICT_CONDITIONAL_COMPARE_FORCE_WEIGHT_RATIO       :{STRING} {STRING} {STRING} {FORCE} / {STRING1} then
+STR_TRACE_RESTRICT_CONDITIONAL_COMPARE_FORCE_WEIGHT_RATIO       :{STRING} {STRING} {STRING} {FORCE_WEIGHT_RATIO} then
 STR_TRACE_RESTRICT_CONDITIONAL_ORDER_STATION                    :{STRING} {STRING} {STRING} {STATION} then
 STR_TRACE_RESTRICT_CONDITIONAL_ORDER_WAYPOINT                   :{STRING} {STRING} {STRING} {WAYPOINT} then
 STR_TRACE_RESTRICT_CONDITIONAL_ORDER_DEPOT                      :{STRING} {STRING} {STRING} {DEPOT} then
@@ -2614,7 +2616,7 @@ STR_TRACE_RESTRICT_INSTRUCTION_LIST_TOOLTIP                     :{BLACK}Click an
 STR_TRACE_RESTRICT_ERROR_CAN_T_INSERT_ITEM                      :{WHITE}Can't insert instruction
 STR_TRACE_RESTRICT_ERROR_CAN_T_MODIFY_ITEM                      :{WHITE}Can't modify instruction
 STR_TRACE_RESTRICT_ERROR_CAN_T_REMOVE_ITEM                      :{WHITE}Can't remove instruction
-STR_TRACE_RESTRICT_ERROR_VALUE_TOO_LARGE                        :{WHITE}Value too large, maximum is {COMMA}
+STR_TRACE_RESTRICT_ERROR_VALUE_TOO_LARGE                        :{WHITE}Value too large, maximum is {DECIMAL}
 STR_TRACE_RESTRICT_ERROR_NO_PROGRAM                             :No trace restrict program exists
 STR_TRACE_RESTRICT_ERROR_OFFSET_TOO_LARGE                       :Offset too large
 STR_TRACE_RESTRICT_ERROR_CAN_T_CHANGE_CONDITIONALITY            :Can't change conditionality
@@ -4169,6 +4171,7 @@ STR_VEHICLE_INFO_WEIGHT_POWER_MAX_SPEED                         :{BLACK}Weight:
 STR_VEHICLE_INFO_WEIGHT_POWER_MAX_SPEED_MAX_TE                  :{BLACK}Weight: {LTBLUE}{WEIGHT_SHORT} {BLACK}Power: {LTBLUE}{POWER}{BLACK} Max. speed: {LTBLUE}{VELOCITY} {BLACK}Max. T.E.: {LTBLUE}{FORCE}
 
 STR_VEHICLE_INFO_TRAIN_LENGTH                                   :{BLACK}Train length {LTBLUE}{DECIMAL} tile{P "" s} {STRING4}
+STR_VEHICLE_INFO_WEIGHT_RATIOS                                  :{BLACK}Power / weight: {LTBLUE}{POWER_WEIGHT_RATIO} {BLACK} Max. T.E / weight: {LTBLUE}{FORCE_WEIGHT_RATIO}
 
 STR_VEHICLE_INFO_PROFIT_THIS_YEAR_LAST_YEAR                     :{BLACK}Profit this year: {LTBLUE}{CURRENCY_LONG} (last year: {CURRENCY_LONG})
 STR_VEHICLE_INFO_PROFIT_THIS_YEAR_LAST_YEAR_LIFETIME            :{STRING2} (lifetime: {CURRENCY_LONG})
@@ -5532,6 +5535,7 @@ STR_JUST_CURRENCY_SHORT                                         :{CURRENCY_SHORT
 STR_JUST_CURRENCY_LONG                                          :{CURRENCY_LONG}
 STR_JUST_CARGO_LIST                                             :{CARGO_LIST}
 STR_JUST_INT                                                    :{NUM}
+STR_JUST_DECIMAL                                                :{DECIMAL}
 STR_JUST_DATE_TINY                                              :{DATE_TINY}
 STR_JUST_DATE_SHORT                                             :{DATE_SHORT}
 STR_JUST_DATE_LONG                                              :{DATE_LONG}
@@ -5552,6 +5556,7 @@ STR_TINY_COMMA                                                  :{TINY_FONT}{COM
 STR_BLUE_COMMA                                                  :{BLUE}{COMMA}
 STR_RED_COMMA                                                   :{RED}{COMMA}
 STR_WHITE_COMMA                                                 :{WHITE}{COMMA}
+STR_BLACK_DECIMAL                                               :{BLACK}{DECIMAL}
 STR_TINY_BLACK_DECIMAL                                          :{TINY_FONT}{BLACK}{DECIMAL}
 STR_COMPANY_MONEY                                               :{WHITE}{CURRENCY_LONG}
 STR_BLACK_DATE_LONG                                             :{BLACK}{DATE_LONG}

src/settings_gui.cpp

@@ -1593,6 +1593,7 @@ static SettingsContainer &GetSettingsTree()
 			interface->Add(new SettingEntry("gui.timetable_arrival_departure"));
 			interface->Add(new SettingEntry("gui.expenses_layout"));
 			interface->Add(new SettingEntry("gui.show_train_length_in_details"));
+			interface->Add(new SettingEntry("gui.show_train_weight_ratios_in_details"));
 			interface->Add(new SettingEntry("gui.show_vehicle_group_in_details"));
 			interface->Add(new SettingEntry("gui.show_vehicle_list_company_colour"));
 		}

src/settings_type.h

@@ -168,6 +168,7 @@ struct GUISettings {
 	byte   missing_strings_threshold;        ///< the number of missing strings before showing the warning
 	uint8  graph_line_thickness;             ///< the thickness of the lines in the various graph guis
 	bool   show_train_length_in_details;     ///< show train length in vehicle details window top widget
+	bool   show_train_weight_ratios_in_details;   ///< show train weight ratios in vehicle details window top widget
 	bool   show_vehicle_group_in_details;    ///< show vehicle group in vehicle details window top widget
 	bool   show_restricted_signal_default;   ///< Show restricted electric signals using the default sprite
 	uint8  osk_activation;                   ///< Mouse gesture to trigger the OSK.

src/string.cpp

@@ -297,6 +297,54 @@ void str_strip_colours(char *str)
 	*dst = '\0';
 }
 
+/** Scans the string for a wchar and replace it with another wchar
+ * @param str The string buffer
+ * @param last The pointer to the last element of the string buffer
+ * @param find The character to find
+ * @param replace The character to replace, may be 0 to not insert any character
+ * @return The pointer to the terminating null-character in the string buffer
+ */
+char *str_replace_wchar(char *str, const char *last, WChar find, WChar replace)
+{
+	char *dst = str;
+
+	while (str <= last && *str != '\0') {
+		size_t len = Utf8EncodedCharLen(*str);
+		/* If the character is unknown, i.e. encoded length is 0
+		 * we assume worst case for the length check.
+		 * The length check is needed to prevent Utf8Decode to read
+		 * over the terminating '\0' if that happens to be placed
+		 * within the encoding of an UTF8 character. */
+		if ((len == 0 && str + 4 > last) || str + len > last) break;
+
+		WChar c;
+		len = Utf8Decode(&c, str);
+		/* It's possible to encode the string termination character
+		 * into a multiple bytes. This prevents those termination
+		 * characters to be skipped */
+		if (c == '\0') break;
+
+		if (c != find) {
+			/* Copy the character back. Even if dst is current the same as str
+			 * (i.e. no characters have been changed) this is quicker than
+			 * moving the pointers ahead by len */
+			if (dst + len > last) break;
+			do {
+				*dst++ = *str++;
+			} while (--len != 0);
+		} else {
+			str += len;
+			if (replace) {
+				len = Utf8EncodedCharLen(replace);
+				if (dst + len > last) break;
+				dst += Utf8Encode(dst, replace);
+			}
+		}
+	}
+	*dst = '\0';
+	return dst;
+}
+
 /**
  * Get the length of an UTF-8 encoded string in number of characters
  * and thus not the number of bytes that the encoded string contains.
@@ -343,9 +391,17 @@ bool strtolower(char *str)
  */
 bool IsValidChar(WChar key, CharSetFilter afilter)
 {
+#if !defined(STRGEN) && !defined(SETTINGSGEN)
+	extern WChar GetDecimalSeparatorChar();
+#endif
 	switch (afilter) {
 		case CS_ALPHANUMERAL:  return IsPrintable(key);
 		case CS_NUMERAL:       return (key >= '0' && key <= '9');
+#if !defined(STRGEN) && !defined(SETTINGSGEN)
+		case CS_NUMERAL_DECIMAL: return (key >= '0' && key <= '9') || key == '.' || key == GetDecimalSeparatorChar();
+#else
+		case CS_NUMERAL_DECIMAL: return (key >= '0' && key <= '9') || key == '.';
+#endif
 		case CS_NUMERAL_SPACE: return (key >= '0' && key <= '9') || key == ' ';
 		case CS_ALPHA:         return IsPrintable(key) && !(key >= '0' && key <= '9');
 		case CS_HEXADECIMAL:   return (key >= '0' && key <= '9') || (key >= 'a' && key <= 'f') || (key >= 'A' && key <= 'F');

src/string_func.h

@@ -46,6 +46,7 @@ void ValidateString(const char *str);
 
 void str_fix_scc_encoded(char *str, const char *last);
 void str_strip_colours(char *str);
+char *str_replace_wchar(char *str, const char *last, WChar find, WChar replace);
 bool strtolower(char *str);
 
 bool StrValid(const char *str, const char *last);

src/string_type.h

@@ -26,6 +26,7 @@
 enum CharSetFilter {
 	CS_ALPHANUMERAL,      ///< Both numeric and alphabetic and spaces and stuff
 	CS_NUMERAL,           ///< Only numeric ones
+	CS_NUMERAL_DECIMAL,   ///< Only numeric and decimal separaters
 	CS_NUMERAL_SPACE,     ///< Only numbers and spaces
 	CS_ALPHA,             ///< Only alphabetic values
 	CS_HEXADECIMAL,       ///< Only hexadecimal characters

src/strings.cpp

@@ -366,6 +366,15 @@ static char *FormatHexNumber(char *buff, uint64 number, const char *last)
 	return buff + seprintf(buff, last, "0x" OTTD_PRINTFHEX64, number);
 }
 
+WChar GetDecimalSeparatorChar()
+{
+	WChar decimal_char = '.';
+	const char *decimal_separator = _settings_game.locale.digit_decimal_separator;
+	if (decimal_separator == NULL) decimal_separator = _langpack->digit_decimal_separator;
+	if (decimal_separator != NULL) Utf8Decode(&decimal_char, decimal_separator);
+	return decimal_char;
+}
+
 /**
  * Format a given number as a number of bytes with the SI prefix.
  * @param buff   the buffer to write to
@@ -844,6 +853,100 @@ uint ConvertDisplayForceToForce(uint force)
 	return _units_force[_settings_game.locale.units_force].c.FromDisplay(force);
 }
 
+static void ConvertWeightRatioToDisplay(const Units &unit, uint ratio, int64 &value, int64 &decimals)
+{
+	int64 input = ratio * 100;
+	decimals = 2;
+	if (_settings_game.locale.units_weight == 2) {
+		input *= 1000;
+		decimals += 3;
+	}
+
+	const UnitConversion &weight_conv = _units_weight[_settings_game.locale.units_weight].c;
+	UnitConversion conv = unit.c;
+	conv.multiplier <<= weight_conv.shift;
+
+	value = conv.ToDisplay(input) / (100 * weight_conv.multiplier);
+
+	if (unit.c.multiplier >> unit.c.shift > 100) {
+		value /= 100;
+		decimals -= 2;
+	}
+}
+
+static uint ConvertDisplayToWeightRatio(const Units &unit, double in)
+{
+	const UnitConversion &weight_conv = _units_weight[_settings_game.locale.units_weight].c;
+	UnitConversion conv = unit.c;
+	conv.multiplier <<= weight_conv.shift;
+	int64 multiplier = _settings_game.locale.units_weight == 2 ? 1000 : 1;
+
+	return conv.FromDisplay(in * 100 * multiplier * weight_conv.multiplier, true, multiplier);
+}
+
+static char *FormatUnitWeightRatio(char *buff, const char *last, const Units &unit, int64 raw_value)
+{
+	const char *unit_str = GetStringPtr(unit.s);
+	const char *weight_str = GetStringPtr(_units_weight[_settings_game.locale.units_weight].s);
+
+	char tmp_buffer[32];
+	strecpy(tmp_buffer, unit_str, lastof(tmp_buffer));
+	char *insert_pt = str_replace_wchar(tmp_buffer, lastof(tmp_buffer), SCC_COMMA, SCC_DECIMAL);
+	strecpy(insert_pt, weight_str, lastof(tmp_buffer));
+	str_replace_wchar(insert_pt, lastof(tmp_buffer), SCC_COMMA, '/');
+	str_replace_wchar(insert_pt, lastof(tmp_buffer), 0xA0 /* NBSP */, 0);
+
+	int64 value, decimals;
+	ConvertWeightRatioToDisplay(unit, raw_value, value, decimals);
+
+	int64 args_array[2] = { value, decimals };
+	StringParameters tmp_params(args_array);
+	buff = FormatString(buff, tmp_buffer, &tmp_params, last);
+	return buff;
+}
+
+/**
+ * Convert the given internal power / weight ratio to the display decimal.
+ * @param ratio the power / weight ratio to convert
+ * @param value the output value
+ * @param decimals the output decimal offset
+ */
+void ConvertPowerWeightRatioToDisplay(uint ratio, int64 &value, int64 &decimals)
+{
+	ConvertWeightRatioToDisplay(_units_power[_settings_game.locale.units_power], ratio, value, decimals);
+}
+
+/**
+ * Convert the given internal force / weight ratio to the display decimal.
+ * @param ratio the force / weight ratio to convert
+ * @param value the output value
+ * @param decimals the output decimal offset
+ */
+void ConvertForceWeightRatioToDisplay(uint ratio, int64 &value, int64 &decimals)
+{
+	ConvertWeightRatioToDisplay(_units_force[_settings_game.locale.units_force], ratio, value, decimals);
+}
+
+/**
+ * Convert the given display value to the internal power / weight ratio.
+ * @param in the display value
+ * @return the converted power / weight ratio.
+ */
+uint ConvertDisplayToPowerWeightRatio(double in)
+{
+	return ConvertDisplayToWeightRatio(_units_power[_settings_game.locale.units_power], in);
+}
+
+/**
+ * Convert the given display value to the internal force / weight ratio.
+ * @param in the display value
+ * @return the converted force / weight ratio.
+ */
+uint ConvertDisplayToForceWeightRatio(double in)
+{
+	return ConvertDisplayToWeightRatio(_units_force[_settings_game.locale.units_force], in);
+}
+
 /**
  * Parse most format codes within a string and write the result to a buffer.
  * @param buff  The buffer to write the final string to.
@@ -1391,6 +1494,22 @@ static char *FormatString(char *buff, const char *str_arg, StringParameters *arg
 				break;
 			}
 
+			case SCC_POWER_WEIGHT_RATIO: { // {POWER_WEIGHT_RATIO}
+				assert(_settings_game.locale.units_power < lengthof(_units_power));
+				assert(_settings_game.locale.units_weight < lengthof(_units_weight));
+
+				buff = FormatUnitWeightRatio(buff, last, _units_power[_settings_game.locale.units_power], args->GetInt64());
+				break;
+			}
+
+			case SCC_FORCE_WEIGHT_RATIO: { // {FORCE_WEIGHT_RATIO}
+				assert(_settings_game.locale.units_force < lengthof(_units_force));
+				assert(_settings_game.locale.units_weight < lengthof(_units_weight));
+
+				buff = FormatUnitWeightRatio(buff, last, _units_force[_settings_game.locale.units_force], args->GetInt64());
+				break;
+			}
+
 			case SCC_COMPANY_NAME: { // {COMPANY}
 				const Company *c = Company::GetIfValid(args->GetInt32());
 				if (c == NULL) break;

src/strings_func.h

@@ -139,6 +139,8 @@ uint ConvertDisplaySpeedToKmhishSpeed(uint speed);
 
 void InjectDParam(uint amount);
 
+WChar GetDecimalSeparatorChar();
+
 /**
  * Set a string parameter \a v at index \a n in a given array \a s.
  * @param s Array of string parameters.

src/table/control_codes.h

@@ -62,6 +62,9 @@ enum StringControlCode {
 	SCC_VELOCITY,
 	SCC_HEIGHT,
 
+	SCC_POWER_WEIGHT_RATIO,
+	SCC_FORCE_WEIGHT_RATIO,
+
 	SCC_DATE_TINY,
 	SCC_DATE_SHORT,
 	SCC_DATE_LONG,

src/table/settings.ini

@@ -3910,6 +3910,15 @@ strhelp  = STR_CONFIG_SETTING_SHOW_TRAIN_LENGTH_IN_DETAILS_HELPTEXT
 proc     = RedrawScreen
 cat      = SC_BASIC
 
+[SDTC_BOOL]
+var      = gui.show_train_weight_ratios_in_details
+flags    = SLF_NOT_IN_SAVE | SLF_NO_NETWORK_SYNC
+def      = false
+str      = STR_CONFIG_SETTING_SHOW_TRAIN_WEIGHT_RATIOS_IN_DETAILS
+strhelp  = STR_CONFIG_SETTING_SHOW_TRAIN_WEIGHT_RATIOS_IN_DETAILS_HELPTEXT
+proc     = RedrawScreen
+cat      = SC_EXPERT
+
 [SDTC_BOOL]
 var      = gui.show_vehicle_group_in_details
 flags    = SLF_NOT_IN_SAVE | SLF_NO_NETWORK_SYNC

src/table/strgen_tables.h

@@ -83,6 +83,8 @@ static const CmdStruct _cmd_structs[] = {
 	{"FORCE",             EmitSingleChar, SCC_FORCE,              1,  0, C_NONE},
 	{"VELOCITY",          EmitSingleChar, SCC_VELOCITY,           1,  0, C_NONE},
 	{"HEIGHT",            EmitSingleChar, SCC_HEIGHT,             1,  0, C_NONE},
+	{"POWER_WEIGHT_RATIO",EmitSingleChar, SCC_POWER_WEIGHT_RATIO, 1,  0, C_NONE},
+	{"FORCE_WEIGHT_RATIO",EmitSingleChar, SCC_FORCE_WEIGHT_RATIO, 1,  0, C_NONE},
 
 	{"P",                 EmitPlural,     0,                      0, -1, C_DONTCOUNT}, // plural specifier
 	{"G",                 EmitGender,     0,                      0, -1, C_DONTCOUNT}, // gender specifier

src/tracerestrict_gui.cpp

@@ -58,6 +58,7 @@ enum TraceRestrictWindowWidgets {
 	TR_WIDGET_CONDFLAGS,
 	TR_WIDGET_COMPARATOR,
 	TR_WIDGET_VALUE_INT,
+	TR_WIDGET_VALUE_DECIMAL,
 	TR_WIDGET_VALUE_DROPDOWN,
 	TR_WIDGET_VALUE_DEST,
 	TR_WIDGET_VALUE_SIGNAL,
@@ -93,6 +94,7 @@ enum PanelWidgets {
 
 	// Right
 	DPR_VALUE_INT = 0,
+	DPR_VALUE_DECIMAL,
 	DPR_VALUE_DROPDOWN,
 	DPR_VALUE_DEST,
 	DPR_VALUE_SIGNAL,
@@ -479,6 +481,19 @@ static bool IsIntegerValueType(TraceRestrictValueType type)
 		case TRVT_WEIGHT:
 		case TRVT_POWER:
 		case TRVT_FORCE:
+			return true;
+
+		default:
+			return false;
+	}
+}
+
+/**
+ * Return true if item type field @p type is a decimal value type
+ */
+static bool IsDecimalValueType(TraceRestrictValueType type)
+{
+	switch (type) {
 		case TRVT_POWER_WEIGHT_RATIO:
 		case TRVT_FORCE_WEIGHT_RATIO:
 			return true;
@@ -520,20 +535,47 @@ static uint ConvertIntegerValue(TraceRestrictValueType type, uint in, bool to_di
 					: ConvertDisplayForceToForce(in);
 			break;
 
+		case TRVT_PF_PENALTY:
+			return in;
+
+		default:
+			NOT_REACHED();
+			return 0;
+	}
+}
+
+/**
+ * Convert integer values to decimal display units
+ */
+static void ConvertValueToDecimal(TraceRestrictValueType type, uint in, int64 &value, int64 &decimal)
+{
+	switch (type) {
 		case TRVT_POWER_WEIGHT_RATIO:
-			return to_display
+			ConvertPowerWeightRatioToDisplay(in, value, decimal);
-					? ConvertPowerToDisplayPower(in) * 10
-					: ConvertDisplayPowerToPower(in) / 10;
 			break;
 
 		case TRVT_FORCE_WEIGHT_RATIO:
-			return to_display
+			ConvertForceWeightRatioToDisplay(in, value, decimal);
-					? ConvertForceToDisplayForce(in) * 10
-					: ConvertDisplayForceToForce(in) / 10;
 			break;
 
-		case TRVT_PF_PENALTY:
+		default:
-			return in;
+			NOT_REACHED();
+	}
+}
+
+/**
+ * Convert decimal (double) display units to integer values
+ */
+static uint ConvertDecimalToValue(TraceRestrictValueType type, double in)
+{
+	switch (type) {
+		case TRVT_POWER_WEIGHT_RATIO:
+			return ConvertDisplayToPowerWeightRatio(in);
+			break;
+
+		case TRVT_FORCE_WEIGHT_RATIO:
+			return ConvertDisplayToForceWeightRatio(in);
+			break;
 
 		default:
 			NOT_REACHED();
@@ -793,15 +835,11 @@ static void DrawInstructionString(const TraceRestrictProgram *prog, TraceRestric
 				case TRVT_POWER_WEIGHT_RATIO:
 					instruction_string = STR_TRACE_RESTRICT_CONDITIONAL_COMPARE_POWER_WEIGHT_RATIO;
 					DrawInstructionStringConditionalIntegerCommon(item, properties);
-					SetDParam(4, STR_UNITS_WEIGHT_LONG_METRIC);
-					SetDParam(5, 100);
 					break;
 
 				case TRVT_FORCE_WEIGHT_RATIO:
 					instruction_string = STR_TRACE_RESTRICT_CONDITIONAL_COMPARE_FORCE_WEIGHT_RATIO;
 					DrawInstructionStringConditionalIntegerCommon(item, properties);
-					SetDParam(4, STR_UNITS_WEIGHT_LONG_METRIC);
-					SetDParam(5, 100);
 					break;
 
 				default:
@@ -1042,6 +1080,22 @@ public:
 				break;
 			}
 
+			case TR_WIDGET_VALUE_DECIMAL: {
+				TraceRestrictItem item = this->GetSelected();
+				TraceRestrictValueType type = GetTraceRestrictTypeProperties(item).value_type;
+				if (IsDecimalValueType(type)) {
+					int64 value, decimal;
+					ConvertValueToDecimal(type, GetTraceRestrictValue(item), value, decimal);
+					SetDParam(0, value);
+					SetDParam(1, decimal);
+					char *saved = _settings_game.locale.digit_group_separator;
+					_settings_game.locale.digit_group_separator = const_cast<char*>("");
+					ShowQueryString(STR_JUST_DECIMAL, STR_TRACE_RESTRICT_VALUE_CAPTION, 16, this, CS_NUMERAL_DECIMAL, QSF_NONE);
+					_settings_game.locale.digit_group_separator = saved;
+				}
+				break;
+			}
+
 			case TR_WIDGET_VALUE_DROPDOWN: {
 				TraceRestrictItem item = this->GetSelected();
 				switch (GetTraceRestrictTypeProperties(item).value_type) {
@@ -1125,13 +1179,13 @@ public:
 
 		TraceRestrictItem item = GetSelected();
 		TraceRestrictValueType type = GetTraceRestrictTypeProperties(item).value_type;
-		if (!IsIntegerValueType(type) && type != TRVT_PF_PENALTY) {
+		uint value;
-			return;
-		}
 
-		uint value = ConvertIntegerValue(type, atoi(str), false);
+		if (IsIntegerValueType(type) || type == TRVT_PF_PENALTY) {
+			value = ConvertIntegerValue(type, atoi(str), false);
 			if (value >= (1 << TRIFA_VALUE_COUNT)) {
 				SetDParam(0, ConvertIntegerValue(type, (1 << TRIFA_VALUE_COUNT) - 1, true));
+				SetDParam(1, 0);
 				ShowErrorMessage(STR_TRACE_RESTRICT_ERROR_VALUE_TOO_LARGE, STR_EMPTY, WL_INFO);
 				return;
 			}
@@ -1139,6 +1193,22 @@ public:
 			if (type == TRVT_PF_PENALTY) {
 				SetTraceRestrictAuxField(item, TRPPAF_VALUE);
 			}
+		} else if (IsDecimalValueType(type)) {
+			char tmp_buffer[32];
+			strecpy(tmp_buffer, str, lastof(tmp_buffer));
+			str_replace_wchar(tmp_buffer, lastof(tmp_buffer), GetDecimalSeparatorChar(), '.');
+			value = ConvertDecimalToValue(type, atof(tmp_buffer));
+			if (value >= (1 << TRIFA_VALUE_COUNT)) {
+				int64 value, decimal;
+				ConvertValueToDecimal(type, (1 << TRIFA_VALUE_COUNT) - 1, value, decimal);
+				SetDParam(0, value);
+				SetDParam(1, decimal);
+				ShowErrorMessage(STR_TRACE_RESTRICT_ERROR_VALUE_TOO_LARGE, STR_EMPTY, WL_INFO);
+				return;
+			}
+		} else {
+			return;
+		}
 
 		SetTraceRestrictValue(item, value);
 		TraceRestrictDoCommandP(tile, track, TRDCT_MODIFY_ITEM, this->selected_instruction - 1, item, STR_TRACE_RESTRICT_ERROR_CAN_T_MODIFY_ITEM);
@@ -1470,6 +1540,20 @@ public:
 				break;
 			}
 
+			case TR_WIDGET_VALUE_DECIMAL: {
+				SetDParam(0, 0);
+				SetDParam(1, 0);
+				TraceRestrictItem item = this->GetSelected();
+				TraceRestrictValueType type = GetTraceRestrictTypeProperties(item).value_type;
+				if (IsDecimalValueType(type)) {
+					int64 value, decimal;
+					ConvertValueToDecimal(type, GetTraceRestrictValue(item), value, decimal);
+					SetDParam(0, value);
+					SetDParam(1, decimal);
+				}
+				break;
+			}
+
 			case TR_WIDGET_CAPTION: {
 				const TraceRestrictProgram *prog = this->GetProgram();
 				if (prog) {
@@ -1629,6 +1713,7 @@ private:
 		this->RaiseWidget(TR_WIDGET_CONDFLAGS);
 		this->RaiseWidget(TR_WIDGET_COMPARATOR);
 		this->RaiseWidget(TR_WIDGET_VALUE_INT);
+		this->RaiseWidget(TR_WIDGET_VALUE_DECIMAL);
 		this->RaiseWidget(TR_WIDGET_VALUE_DROPDOWN);
 		this->RaiseWidget(TR_WIDGET_VALUE_DEST);
 		this->RaiseWidget(TR_WIDGET_VALUE_SIGNAL);
@@ -1644,6 +1729,7 @@ private:
 		this->DisableWidget(TR_WIDGET_CONDFLAGS);
 		this->DisableWidget(TR_WIDGET_COMPARATOR);
 		this->DisableWidget(TR_WIDGET_VALUE_INT);
+		this->DisableWidget(TR_WIDGET_VALUE_DECIMAL);
 		this->DisableWidget(TR_WIDGET_VALUE_DROPDOWN);
 		this->DisableWidget(TR_WIDGET_VALUE_DEST);
 		this->DisableWidget(TR_WIDGET_VALUE_SIGNAL);
@@ -1779,6 +1865,9 @@ private:
 				if (IsIntegerValueType(properties.value_type)) {
 					right_sel->SetDisplayedPlane(DPR_VALUE_INT);
 					this->EnableWidget(TR_WIDGET_VALUE_INT);
+				} else if(IsDecimalValueType(properties.value_type)) {
+					right_sel->SetDisplayedPlane(DPR_VALUE_DECIMAL);
+					this->EnableWidget(TR_WIDGET_VALUE_DECIMAL);
 				} else {
 					switch (properties.value_type) {
 						case TRVT_DENY:
@@ -2021,6 +2110,8 @@ static const NWidgetPart _nested_program_widgets[] = {
 			NWidget(NWID_SELECTION, INVALID_COLOUR, TR_WIDGET_SEL_TOP_RIGHT),
 				NWidget(WWT_TEXTBTN, COLOUR_GREY, TR_WIDGET_VALUE_INT), SetMinimalSize(124, 12), SetFill(1, 0),
 														SetDataTip(STR_BLACK_COMMA, STR_TRACE_RESTRICT_COND_VALUE_TOOLTIP), SetResize(1, 0),
+				NWidget(WWT_TEXTBTN, COLOUR_GREY, TR_WIDGET_VALUE_DECIMAL), SetMinimalSize(124, 12), SetFill(1, 0),
+														SetDataTip(STR_BLACK_DECIMAL, STR_TRACE_RESTRICT_COND_VALUE_TOOLTIP), SetResize(1, 0),
 				NWidget(WWT_DROPDOWN, COLOUR_GREY, TR_WIDGET_VALUE_DROPDOWN), SetMinimalSize(124, 12), SetFill(1, 0),
 														SetDataTip(STR_NULL, STR_TRACE_RESTRICT_COND_VALUE_TOOLTIP), SetResize(1, 0),
 				NWidget(WWT_TEXTBTN, COLOUR_GREY, TR_WIDGET_VALUE_DEST), SetMinimalSize(124, 12), SetFill(1, 0),

src/unit_conversion.h

@@ -17,3 +17,7 @@ uint ConvertPowerToDisplayPower(uint power);
 uint ConvertDisplayPowerToPower(uint power);
 uint ConvertForceToDisplayForce(uint force);
 uint ConvertDisplayForceToForce(uint force);
+void ConvertPowerWeightRatioToDisplay(uint ratio, int64 &value, int64 &decimals);
+void ConvertForceWeightRatioToDisplay(uint ratio, int64 &value, int64 &decimals);
+uint ConvertDisplayToPowerWeightRatio(double in);
+uint ConvertDisplayToForceWeightRatio(double in);

src/vehicle_gui.cpp

@@ -2049,6 +2049,7 @@ struct VehicleDetailsWindow : Window {
 	TrainDetailsWindowTabs tab; ///< For train vehicles: which tab is displayed.
 	Scrollbar *vscroll;
 	bool vehicle_group_line_shown;
+	bool vehicle_weight_ratio_line_shown;
 
 	/** Initialize a newly created vehicle details window */
 	VehicleDetailsWindow(WindowDesc *desc, WindowNumber window_number) : Window(desc)
@@ -2130,6 +2131,11 @@ struct VehicleDetailsWindow : Window {
 		return (_settings_client.gui.show_vehicle_group_in_details && v->group_id != INVALID_GROUP && v->group_id != DEFAULT_GROUP);
 	}
 
+	bool ShouldShowWeightRatioLine(const Vehicle *v) const
+	{
+		return (v->type == VEH_TRAIN && _settings_client.gui.show_train_weight_ratios_in_details);
+	}
+
 	virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
 	{
 		switch (widget) {
@@ -2137,7 +2143,11 @@ struct VehicleDetailsWindow : Window {
 				const Vehicle *v = Vehicle::Get(this->window_number);
 				Dimension dim = { 0, 0 };
 				this->vehicle_group_line_shown = ShouldShowGroupLine(v);
-				size->height = WD_FRAMERECT_TOP + (this->vehicle_group_line_shown ? 5 : 4) * FONT_HEIGHT_NORMAL + WD_FRAMERECT_BOTTOM;
+				this->vehicle_weight_ratio_line_shown = ShouldShowWeightRatioLine(v);
+				int lines = 4;
+				if (this->vehicle_group_line_shown) lines++;
+				if (this->vehicle_weight_ratio_line_shown) lines++;
+				size->height = WD_FRAMERECT_TOP + lines * FONT_HEIGHT_NORMAL + WD_FRAMERECT_BOTTOM;
 
 				for (uint i = 0; i < 5; i++) SetDParamMaxValue(i, INT16_MAX);
 				static const StringID info_strings[] = {
@@ -2165,6 +2175,11 @@ struct VehicleDetailsWindow : Window {
 					SetDParam(0, v->group_id);
 					dim = maxdim(dim, GetStringBoundingBox(STR_VEHICLE_INFO_GROUP));
 				}
+				if (this->vehicle_weight_ratio_line_shown) {
+					SetDParamMaxValue(0, 1 << 16);
+					SetDParamMaxValue(1, 1 << 16);
+					dim = maxdim(dim, GetStringBoundingBox(STR_VEHICLE_INFO_WEIGHT_RATIOS));
+				}
 				SetDParam(0, STR_VEHICLE_INFO_AGE);
 				dim = maxdim(dim, GetStringBoundingBox(STR_VEHICLE_INFO_AGE_RUNNING_COST_YR));
 				size->width = dim.width + WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT;
@@ -2299,6 +2314,14 @@ struct VehicleDetailsWindow : Window {
 				DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, string);
 				y += FONT_HEIGHT_NORMAL;
 
+				bool should_show_weight_ratio = this->ShouldShowWeightRatioLine(v);
+				if (should_show_weight_ratio) {
+					SetDParam(0, (100 * Train::From(v)->gcache.cached_power) / max<uint>(1, Train::From(v)->gcache.cached_weight));
+					SetDParam(1, (Train::From(v)->gcache.cached_max_te / 10) / max<uint>(1, Train::From(v)->gcache.cached_weight));
+					DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_VEHICLE_INFO_WEIGHT_RATIOS);
+					y += FONT_HEIGHT_NORMAL;
+				}
+
 				/* Draw profit */
 				if (v->type == VEH_TRAIN && _settings_client.gui.show_train_length_in_details) {
 					const GroundVehicleCache *gcache = v->GetGroundVehicleCache();
@@ -2347,7 +2370,7 @@ struct VehicleDetailsWindow : Window {
 					SetDParam(0, v->group_id);
 					DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_VEHICLE_INFO_GROUP);
 				}
-				if (this->vehicle_group_line_shown != should_show_group) {
+				if (this->vehicle_group_line_shown != should_show_group || this->vehicle_weight_ratio_line_shown != should_show_weight_ratio) {
 					const_cast<VehicleDetailsWindow *>(this)->ReInit();
 				}
 				break;