OpenTTD Source 20250312-master-gcdcc6b491d
IntSettingDesc Struct Reference

Base integer type, including boolean, settings. More...

#include <settings_internal.h>

Inheritance diagram for IntSettingDesc:
SettingDesc BoolSettingDesc OneOfManySettingDesc ManyOfManySettingDesc

Public Types

using GetTitleCallback = StringID(const IntSettingDesc &sd)
 
using GetHelpCallback = StringID(const IntSettingDesc &sd)
 
using GetValueParamsCallback = std::pair< StringParameter, StringParameter >(const IntSettingDesc &sd, int32_t value)
 
using GetDefaultValueCallback = int32_t(const IntSettingDesc &sd)
 
using GetRangeCallback = std::tuple< int32_t, uint32_t >(const IntSettingDesc &sd)
 
using PreChangeCheck = bool(int32_t &value)
 A check to be performed before the setting gets changed.
 
using PostChangeCallback = void(int32_t value)
 A callback to denote that a setting has been changed.
 

Public Member Functions

template<ConvertibleThroughBaseOrTo< int32_t > Tdef, ConvertibleThroughBaseOrTo< int32_t > Tmin, ConvertibleThroughBaseOrTo< uint32_t > Tmax, ConvertibleThroughBaseOrTo< int32_t > Tinterval>
 IntSettingDesc (const SaveLoad &save, SettingFlags flags, bool startup, Tdef def, Tmin min, Tmax max, Tinterval interval, StringID str, StringID str_help, StringID str_val, SettingCategory cat, PreChangeCheck pre_check, PostChangeCallback post_callback, GetTitleCallback get_title_cb, GetHelpCallback get_help_cb, GetValueParamsCallback get_value_params_cb, GetDefaultValueCallback get_def_cb, GetRangeCallback get_range_cb)
 
StringID GetTitle () const
 Get the title of the setting.
 
StringID GetHelp () const
 Get the help text of the setting.
 
std::pair< StringParameter, StringParameterGetValueParams (int32_t value) const
 Get parameters for drawing the value of the setting.
 
int32_t GetDefaultValue () const
 Get the default value of the setting.
 
std::tuple< int32_t, uint32_t > GetRange () const
 Get the min/max range for the setting.
 
virtual bool IsBoolSetting () const
 Check whether this setting is a boolean type setting.
 
bool IsIntSetting () const override
 Check whether this setting is an integer type setting.
 
void ChangeValue (const void *object, int32_t newvalue) const
 Handle changing a value.
 
void MakeValueValidAndWrite (const void *object, int32_t value) const
 Make the value valid and then write it to the setting.
 
virtual size_t ParseValue (const char *str) const
 Convert a string representation (external) of an integer-like setting to an integer.
 
std::string FormatValue (const void *object) const override
 Format the value of the setting associated with this object.
 
void ParseValue (const IniItem *item, void *object) const override
 Parse/read the value from the Ini item into the setting associated with this object.
 
bool IsSameValue (const IniItem *item, void *object) const override
 Check whether the value in the Ini item is the same as is saved in this setting in the object.
 
bool IsDefaultValue (void *object) const override
 Check whether the value is the same as the default value.
 
void ResetToDefault (void *object) const override
 Reset the setting to its default value.
 
int32_t Read (const void *object) const
 Read the integer from the the actual setting.
 
- Public Member Functions inherited from SettingDesc
 SettingDesc (const SaveLoad &save, SettingFlags flags, bool startup)
 
bool IsEditable (bool do_command=false) const
 Check whether the setting is editable in the current gamemode.
 
SettingType GetType () const
 Return the type of the setting.
 
constexpr const std::string & GetName () const
 Get the name of this setting.
 
virtual bool IsStringSetting () const
 Check whether this setting is an string type setting.
 
const struct IntSettingDescAsIntSetting () const
 Get the setting description of this setting as an integer setting.
 
const struct StringSettingDescAsStringSetting () const
 Get the setting description of this setting as a string setting.
 

Data Fields

int32_t def
 default value given when none is present
 
int32_t min
 minimum values
 
uint32_t max
 maximum values
 
int32_t interval
 the interval to use between settings in the 'settings' window. If interval is '0' the interval is dynamically determined
 
StringID str
 (translated) string with descriptive text; gui and console
 
StringID str_help
 (Translated) string with help text; gui only.
 
StringID str_val
 (Translated) first string describing the value.
 
SettingCategory cat
 assigned categories of the setting
 
PreChangeCheckpre_check
 Callback to check for the validity of the setting.
 
PostChangeCallbackpost_callback
 Callback when the setting has been changed.
 
GetTitleCallback * get_title_cb
 
GetHelpCallback * get_help_cb
 
GetValueParamsCallback * get_value_params_cb
 
GetDefaultValueCallback * get_def_cb
 Callback to set the correct default value.
 
GetRangeCallback * get_range_cb
 
- Data Fields inherited from SettingDesc
SettingFlags flags
 Handles how a setting would show up in the GUI (text/currency, etc.).
 
bool startup
 Setting has to be loaded directly at startup?.
 
SaveLoad save
 Internal structure (going to savegame, parts to config).
 

Private Member Functions

void MakeValueValid (int32_t &value) const
 Make the value valid given the limitations of this setting.
 
void Write (const void *object, int32_t value) const
 Set the value of a setting.
 

Detailed Description

Base integer type, including boolean, settings.

Only these are shown in the settings UI.

Definition at line 148 of file settings_internal.h.

Member Typedef Documentation

◆ GetDefaultValueCallback

using IntSettingDesc::GetDefaultValueCallback = int32_t(const IntSettingDesc &sd)

Definition at line 152 of file settings_internal.h.

◆ GetHelpCallback

using IntSettingDesc::GetHelpCallback = StringID(const IntSettingDesc &sd)

Definition at line 150 of file settings_internal.h.

◆ GetRangeCallback

using IntSettingDesc::GetRangeCallback = std::tuple<int32_t, uint32_t>(const IntSettingDesc &sd)

Definition at line 153 of file settings_internal.h.

◆ GetTitleCallback

using IntSettingDesc::GetTitleCallback = StringID(const IntSettingDesc &sd)

Definition at line 149 of file settings_internal.h.

◆ GetValueParamsCallback

using IntSettingDesc::GetValueParamsCallback = std::pair<StringParameter, StringParameter>(const IntSettingDesc &sd, int32_t value)

Definition at line 151 of file settings_internal.h.

◆ PostChangeCallback

using IntSettingDesc::PostChangeCallback = void(int32_t value)

A callback to denote that a setting has been changed.

Parameters
Thenew value for the setting.

Definition at line 168 of file settings_internal.h.

◆ PreChangeCheck

using IntSettingDesc::PreChangeCheck = bool(int32_t &value)

A check to be performed before the setting gets changed.

The passed integer may be changed by the check if that is important, for example to remove some unwanted bit. The return value denotes whether the value, potentially after the changes, is allowed to be used/set in the configuration.

Parameters
valueThe prospective new value for the setting.
Returns
True when the setting is accepted.

Definition at line 163 of file settings_internal.h.

Constructor & Destructor Documentation

◆ IntSettingDesc()

template<ConvertibleThroughBaseOrTo< int32_t > Tdef, ConvertibleThroughBaseOrTo< int32_t > Tmin, ConvertibleThroughBaseOrTo< uint32_t > Tmax, ConvertibleThroughBaseOrTo< int32_t > Tinterval>
IntSettingDesc::IntSettingDesc ( const SaveLoad save,
SettingFlags  flags,
bool  startup,
Tdef  def,
Tmin  min,
Tmax  max,
Tinterval  interval,
StringID  str,
StringID  str_help,
StringID  str_val,
SettingCategory  cat,
PreChangeCheck  pre_check,
PostChangeCallback  post_callback,
GetTitleCallback  get_title_cb,
GetHelpCallback  get_help_cb,
GetValueParamsCallback  get_value_params_cb,
GetDefaultValueCallback  get_def_cb,
GetRangeCallback  get_range_cb 
)
inline

Definition at line 171 of file settings_internal.h.

Member Function Documentation

◆ ChangeValue()

void IntSettingDesc::ChangeValue ( const void *  object,
int32_t  newval 
) const

Handle changing a value.

This performs validation of the input value and calls the appropriate callbacks, and saves it when the value is changed.

Parameters
objectThe object the setting is in.
newvalThe new value for the setting.

Definition at line 1600 of file settings.cpp.

References _gamelog, SettingDesc::flags, SettingDesc::GetName(), GLAT_SETTING, MakeValueValid(), NoNetwork, post_callback, pre_check, Read(), Sandbox, SaveToConfig(), Gamelog::Setting(), SetWindowClassesDirty(), Gamelog::StartAction(), Gamelog::StopAction(), BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Test(), WC_CHEATS, WC_GAME_OPTIONS, and Write().

Referenced by CmdChangeCompanySetting(), CmdChangeSetting(), and SetSettingValue().

◆ FormatValue()

std::string IntSettingDesc::FormatValue ( const void *  object) const
overridevirtual

Format the value of the setting associated with this object.

Parameters
bufThe before of the buffer to format into.
lastThe end of the buffer to format into.
objectThe object the setting is in.

Implements SettingDesc.

Reimplemented in OneOfManySettingDesc, and ManyOfManySettingDesc.

Definition at line 743 of file settings.cpp.

References SaveLoad::conv, Read(), and SettingDesc::save.

◆ GetDefaultValue()

int32_t IntSettingDesc::GetDefaultValue ( ) const

◆ GetHelp()

StringID IntSettingDesc::GetHelp ( ) const

Get the help text of the setting.

Returns
The requested help text.

Definition at line 448 of file settings.cpp.

References str_help.

Referenced by SettingEntry::GetMaxHelpHeight(), and SettingEntry::UpdateFilterState().

◆ GetRange()

std::tuple< int32_t, uint32_t > IntSettingDesc::GetRange ( ) const

Get the min/max range for the setting.

Returns
The min/max range.

Definition at line 488 of file settings.cpp.

References max, and min.

Referenced by SettingEntry::DrawSetting(), GetValueParams(), IConsoleGetSetting(), and MakeValueValid().

◆ GetTitle()

StringID IntSettingDesc::GetTitle ( ) const

Get the title of the setting.

The string should include a {STRING2} to show the current value.

Returns
The title string.

Definition at line 439 of file settings.cpp.

References str.

Referenced by SettingEntry::DrawSetting(), and SettingEntry::UpdateFilterState().

◆ GetValueParams()

std::pair< StringParameter, StringParameter > IntSettingDesc::GetValueParams ( int32_t  value) const

Get parameters for drawing the value of the setting.

Parameters
valueSetting value to set params for.

Definition at line 457 of file settings.cpp.

References SettingDesc::flags, GetRange(), GuiDropdown, GuiZeroIsSpecial, IsBoolSetting(), str_val, and BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Test().

Referenced by SettingEntry::DrawSetting().

◆ IsBoolSetting()

virtual bool IntSettingDesc::IsBoolSetting ( ) const
inlinevirtual

Check whether this setting is a boolean type setting.

Returns
True when the underlying type is an integer.

Reimplemented in BoolSettingDesc.

Definition at line 232 of file settings_internal.h.

Referenced by SettingEntry::DrawSetting(), and GetValueParams().

◆ IsDefaultValue()

bool IntSettingDesc::IsDefaultValue ( void *  object) const
overridevirtual

Check whether the value is the same as the default value.

Parameters
objectThe object the setting is in.
Returns
true iff the value is the default value.

Implements SettingDesc.

Definition at line 767 of file settings.cpp.

References GetDefaultValue(), and Read().

◆ IsIntSetting()

bool IntSettingDesc::IsIntSetting ( ) const
inlineoverridevirtual

Check whether this setting is an integer type setting.

Returns
True when the underlying type is an integer.

Reimplemented from SettingDesc.

Definition at line 233 of file settings_internal.h.

◆ IsSameValue()

bool IntSettingDesc::IsSameValue ( const IniItem item,
void *  object 
) const
overridevirtual

Check whether the value in the Ini item is the same as is saved in this setting in the object.

It might be that determining whether the value is the same is way more expensive than just writing the value. In those cases this function may unconditionally return false even though the value might be the same as in the Ini item.

Parameters
itemThe Ini item with the content of this setting.
objectThe object the setting is in.
Returns
True if the value is definitely the same (might be false when the same).

Implements SettingDesc.

Definition at line 760 of file settings.cpp.

References ParseValue(), Read(), and IniItem::value.

◆ MakeValueValid()

void IntSettingDesc::MakeValueValid ( int32_t &  val) const
private

Make the value valid given the limitations of this setting.

In the case of int settings this is ensuring the value is between the minimum and maximum value, with a special case for 0 if SettingFlag::GuiZeroIsSpecial is set. This is generally done by clamping the value so it is within the allowed value range. However, for SettingFlag::GuiDropdown the default is used when the value is not valid.

Parameters
valThe value to make valid.

Definition at line 514 of file settings.cpp.

References Clamp(), ClampU(), SaveLoad::conv, SettingDesc::flags, GetDefaultValue(), GetRange(), GetVarMemType(), GuiDropdown, GuiZeroIsSpecial, SettingDesc::save, SLE_VAR_NULL, and BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Test().

Referenced by ChangeValue(), and MakeValueValidAndWrite().

◆ MakeValueValidAndWrite()

void IntSettingDesc::MakeValueValidAndWrite ( const void *  object,
int32_t  val 
) const

Make the value valid and then write it to the setting.

See #MakeValidValid and Write for more details.

Parameters
objectThe object the setting is to be saved in.
valSigned version of the new value.

Definition at line 499 of file settings.cpp.

References MakeValueValid(), and Write().

Referenced by HandleOldDiffCustom(), LoadSettings(), ParseValue(), and SetDefaultCompanySettings().

◆ ParseValue() [1/2]

size_t IntSettingDesc::ParseValue ( const char *  str) const
virtual

Convert a string representation (external) of an integer-like setting to an integer.

Parameters
strInput string that will be parsed based on the type of desc.
Returns
The value from the parse string, or the default value of the setting.

Reimplemented in BoolSettingDesc, OneOfManySettingDesc, and ManyOfManySettingDesc.

Definition at line 380 of file settings.cpp.

References _settings_error_list, GetDefaultValue(), GetEncodedString(), SettingDesc::GetName(), and str.

Referenced by IsSameValue(), and ParseValue().

◆ ParseValue() [2/2]

void IntSettingDesc::ParseValue ( const IniItem item,
void *  object 
) const
overridevirtual

Parse/read the value from the Ini item into the setting associated with this object.

Parameters
itemThe Ini item with the content of this setting.
objectThe object the setting is in.

Implements SettingDesc.

Definition at line 673 of file settings.cpp.

References GetDefaultValue(), MakeValueValidAndWrite(), ParseValue(), and IniItem::value.

◆ Read()

int32_t IntSettingDesc::Read ( const void *  object) const

◆ ResetToDefault()

void IntSettingDesc::ResetToDefault ( void *  object) const
overridevirtual

Reset the setting to its default value.

Implements SettingDesc.

Definition at line 773 of file settings.cpp.

References GetDefaultValue(), and Write().

◆ Write()

void IntSettingDesc::Write ( const void *  object,
int32_t  val 
) const
private

Set the value of a setting.

Parameters
objectThe object the setting is to be saved in.
valSigned version of the new value.

Definition at line 568 of file settings.cpp.

References SaveLoad::conv, GetVariableAddress(), SettingDesc::save, and WriteValue().

Referenced by ChangeValue(), MakeValueValidAndWrite(), and ResetToDefault().

Field Documentation

◆ cat

SettingCategory IntSettingDesc::cat

assigned categories of the setting

Definition at line 213 of file settings_internal.h.

Referenced by SettingEntry::IsVisibleByRestrictionMode().

◆ def

int32_t IntSettingDesc::def

default value given when none is present

Definition at line 206 of file settings_internal.h.

Referenced by GetDefaultServiceInterval(), and GetDefaultValue().

◆ get_def_cb

GetDefaultValueCallback* IntSettingDesc::get_def_cb

Callback to set the correct default value.

Definition at line 219 of file settings_internal.h.

Referenced by GetDefaultValue().

◆ get_help_cb

GetHelpCallback* IntSettingDesc::get_help_cb

Definition at line 217 of file settings_internal.h.

◆ get_range_cb

GetRangeCallback* IntSettingDesc::get_range_cb

Definition at line 220 of file settings_internal.h.

◆ get_title_cb

GetTitleCallback* IntSettingDesc::get_title_cb

Definition at line 216 of file settings_internal.h.

◆ get_value_params_cb

GetValueParamsCallback* IntSettingDesc::get_value_params_cb

Definition at line 218 of file settings_internal.h.

◆ interval

int32_t IntSettingDesc::interval

the interval to use between settings in the 'settings' window. If interval is '0' the interval is dynamically determined

Definition at line 209 of file settings_internal.h.

◆ max

uint32_t IntSettingDesc::max

maximum values

Definition at line 208 of file settings_internal.h.

Referenced by GetRange().

◆ min

int32_t IntSettingDesc::min

minimum values

Definition at line 207 of file settings_internal.h.

Referenced by GetRange().

◆ post_callback

PostChangeCallback* IntSettingDesc::post_callback

Callback when the setting has been changed.

Definition at line 215 of file settings_internal.h.

Referenced by ChangeValue().

◆ pre_check

PreChangeCheck* IntSettingDesc::pre_check

Callback to check for the validity of the setting.

Definition at line 214 of file settings_internal.h.

Referenced by ChangeValue().

◆ str

◆ str_help

StringID IntSettingDesc::str_help

(Translated) string with help text; gui only.

Definition at line 211 of file settings_internal.h.

Referenced by GetHelp(), and SettingHelpWallclock().

◆ str_val

StringID IntSettingDesc::str_val

(Translated) first string describing the value.

Definition at line 212 of file settings_internal.h.

Referenced by GetValueParams(), ServiceIntervalSettingsValueText(), and SettingsValueAbsolute().


The documentation for this struct was generated from the following files: