43#include "table/strings.h"
102static constexpr NWidgetPart _nested_normal_news_widgets[] = {
130 _nested_normal_news_widgets
134static constexpr NWidgetPart _nested_vehicle_news_widgets[] = {
177 _nested_vehicle_news_widgets
181static constexpr NWidgetPart _nested_company_news_widgets[] = {
221 _nested_company_news_widgets
225static constexpr NWidgetPart _nested_thin_news_widgets[] = {
255 _nested_thin_news_widgets
259static constexpr NWidgetPart _nested_small_news_widgets[] = {
265 SetAspect(WidgetDimensions::ASPECT_VEHICLE_ICON),
267 SetDataTip(STR_NULL , STR_NEWS_SHOW_VEHICLE_GROUP_TOOLTIP),
290 _nested_small_news_widgets
319 NewsTypeData(
"news_display.accident_other", 90, SND_BEGIN ),
320 NewsTypeData(
"news_display.company_info", 60, SND_BEGIN ),
324 NewsTypeData(
"news_display.production_player", 30, SND_BEGIN ),
325 NewsTypeData(
"news_display.production_other", 30, SND_BEGIN ),
326 NewsTypeData(
"news_display.production_nobody", 30, SND_BEGIN ),
329 NewsTypeData(
"news_display.acceptance", 90, SND_BEGIN ),
330 NewsTypeData(
"news_display.subsidies", 180, SND_BEGIN ),
358 this->chat_height = (w !=
nullptr) ? w->
height : 0;
393 if (nvp !=
nullptr) {
410 void DrawNewsBorder(
const Rect &r)
const
424 Point pt = { 0, _screen.height };
451 str = this->GetCompanyMessageString();
456 str = this->GetNewVehicleMessageString(widget);
489 d.width = (
d.width >= padding.width) ?
d.width - padding.width : 0;
490 d.height = (
d.height >= padding.height) ?
d.height - padding.height : 0;
492 d.width += padding.width;
493 d.height += padding.height;
510 this->DrawNewsBorder(r);
546 DrawVehicleEngine(r.left, r.right,
CenterBounds(r.left, r.right, 0),
CenterBounds(r.top, r.bottom, 0), engine,
GetEnginePalette(engine,
_local_company),
EIT_PREVIEW);
616 if (wid !=
nullptr) {
619 if (
wid->UpdateVerticalSize(y)) this->
ReInit(0, 0);
632 int newtop = this->
top + this->chat_height - data;
633 this->chat_height = data;
650 int newtop = std::max(this->
top - 2 *
static_cast<int>(count), _screen.height -
this->height -
this->status_height -
this->chat_height);
661 if (this->
top == newtop)
return;
671 StringID GetCompanyMessageString()
const
675 return std::get<uint64_t>(this->ni->
params[1]);
735 if (ni ==
nullptr)
return true;
763 if (std::empty(
_news))
return;
774 default: NOT_REACHED();
801 if (std::empty(
_news))
return;
812 default: NOT_REACHED();
827static std::list<NewsItem>::iterator
DeleteNewsItem(std::list<NewsItem>::iterator ni)
832 if (updateCurrentNews) {
839 if (updateStatusbarNews) {
846 ni =
_news.erase(ni);
848 if (updateCurrentNews) {
854 if (updateStatusbarNews) {
877 string_id(string_id), date(
TimerGameCalendar::date), economy_date(
TimerGameEconomy::date), type(type), flags(flags), reftype1(reftype1), reftype2(reftype2), ref1(ref1), ref2(ref2), data(std::move(data))
899 if (_game_mode == GM_MENU)
return;
902 _news.emplace_front(
string, type, flags, reftype1, ref1, reftype2, ref2, std::move(data));
974template <
size_t Tmin = 0,
class Tpredicate>
978 for (
auto it = std::rbegin(
_news); it != std::rend(
_news); ) {
979 if constexpr (Tmin > 0) {
980 if (std::size(
_news) <= Tmin)
break;
982 if (predicate(*it)) {
983 it = std::make_reverse_iterator(
DeleteNewsItem(std::prev(it.base())));
1039static void RemoveOldNewsItems()
1041 DeleteNews<MIN_NEWS_AMOUNT>([](
const auto &ni) {
1054 for (
auto &ni :
_news) {
1064 if (std::empty(
_news))
return;
1069 RemoveOldNewsItems();
1080 assert(!std::empty(
_news));
1101 if (w ==
nullptr)
return false;
1109 if (std::empty(
_news))
return;
1118 ni = std::begin(
_news);
1125 ni = std::begin(
_news);
1138 if (ni == std::end(
_news)) {
1141 ni = std::begin(
_news);
1186 resize.height = this->line_height;
1194 size.width = std::max(200u, size.width);
1209 for (
auto ni = first; ni !=
last; ++ni) {
1214 y += this->line_height;
1237 if (ni == std::end(
_news))
return;
1249static constexpr NWidgetPart _nested_message_history[] = {
1259 NWidget(
WWT_PANEL, COLOUR_BROWN,
WID_MH_BACKGROUND),
SetMinimalSize(200, 125),
SetDataTip(0x0, STR_MESSAGE_HISTORY_TOOLTIP),
SetResize(1, 12),
SetScrollbar(
WID_MH_SCROLLBAR),
1272 _nested_message_history
debug_inline static constexpr uint GB(const T x, const uint8_t s, const uint8_t n)
Fetch n bits from x, started at bit s.
Common return value for all commands.
An interval timer will fire every interval, and will continue to fire until it is deleted.
Timer that is increased every 27ms, and counts towards ticks / days / months / years.
static Date ConvertYMDToDate(Year year, Month month, Day day)
Converts a tuple of Year, Month and Day to a Date.
static Year year
Current year, starting at 0.
static constexpr TimerGame< struct Calendar >::Year ORIGINAL_MAX_YEAR
The maximum year of the original TTD.
Timer that is increased every 27ms, and counts towards economy time units, expressed in days / months...
static Date date
Current date in days (day counter).
static Month month
Current month (0..11).
uint8_t Month
Type for the month, note: 0 based, i.e.
Functions related to commands.
static const CommandCost CMD_ERROR
Define a default return value for a failed command.
DoCommandFlag
List of flags for a command.
@ DC_EXEC
execute the given command
Definition of stuff that is very close to a company, like the company struct itself.
CompanyID _local_company
Company controlled by the human player at this client. Can also be COMPANY_SPECTATOR.
CompanyID _current_company
Company currently doing an action.
Functions related to companies.
void DrawCompanyManagerFace(CompanyManagerFace cmf, Colours colour, const Rect &r)
Draws the face of a company manager's face.
Functionality related to the company manager's face.
Owner
Enum for all companies/owners.
@ INVALID_OWNER
An invalid owner.
@ OWNER_DEITY
The object is owned by a superuser / goal script.
StringID GetEngineCategoryName(EngineID engine)
Return the category of an engine.
StringID GetEngineInfoString(EngineID engine)
Get a multi-line string with some technical data, describing the engine.
void DrawVehicleEngine(int left, int right, int preferred_x, int y, EngineID engine, PaletteID pal, EngineImageType image_type)
Draw an engine.
Engine GUI functions, used by build_vehicle_gui and autoreplace_gui
uint16_t EngineID
Unique identification number of an engine.
uint64_t PackEngineNameDParam(EngineID engine_id, EngineNameContext context, uint32_t extra_data=0)
Combine an engine ID and a name context to an engine name dparam.
@ PreviewNews
Name is shown in exclusive preview or newspaper.
int GetCharacterHeight(FontSize size)
Get height of a character for a given font size.
Dimension maxdim(const Dimension &d1, const Dimension &d2)
Compute bounding box of both dimensions.
int GetStringHeight(std::string_view str, int maxw, FontSize fontsize)
Calculates height of string (in pixels).
Dimension GetStringBoundingBox(std::string_view str, FontSize start_fontsize)
Return the string dimension in pixels.
int DrawString(int left, int right, int top, std::string_view str, TextColour colour, StringAlignment align, bool underline, FontSize fontsize)
Draw string, possibly truncated to make it fit in its allocated space.
bool _ctrl_pressed
Is Ctrl pressed?
void GfxFillRect(int left, int top, int right, int bottom, int colour, FillRectMode mode)
Applies a certain FillRectMode-operation to a rectangle [left, right] x [top, bottom] on the screen.
Dimension GetStringMultiLineBoundingBox(StringID str, const Dimension &suggestion)
Calculate string bounding box for multi-line strings.
int DrawStringMultiLine(int left, int right, int top, int bottom, std::string_view str, TextColour colour, StringAlignment align, bool underline, FontSize fontsize)
Draw string, possibly over multiple lines.
Dimension GetScaledSpriteSize(SpriteID sprid)
Scale sprite size for GUI.
int CenterBounds(int min, int max, int size)
Determine where to draw a centred object inside a widget.
@ SA_TOP
Top align the text.
@ SA_RIGHT
Right align the text (must be a single bit).
@ SA_CENTER
Center both horizontally and vertically.
@ FS_SMALL
Index of the small font in the font tables.
@ FS_NORMAL
Index of the normal font in the font tables.
@ FS_LARGE
Index of the large font in the font tables.
TextColour
Colour of the strings, see _string_colourmap in table/string_colours.h or docs/ottd-colourtext-palett...
@ FILLRECT_RECOLOUR
Apply a recolour sprite to the screen content.
void AddDirtyBlock(int left, int top, int right, int bottom)
Extend the internal _invalid_rect rectangle to contain the rectangle defined by the given parameters.
void ShowCompanyGroupForVehicle(const Vehicle *v)
Show the group window for the given vehicle.
Functions/definitions that have something to do with groups.
GUI functions that shouldn't be here.
void ShowExtraViewportWindow(TileIndex tile=INVALID_TILE)
Show a new Extra Viewport window.
TileIndexDiff TileDiffXY(int x, int y)
Calculates an offset for the given coordinate(-offset).
Command definitions related to news messages.
Functions related to news.
static NewsContainer _news
List of news, with newest items at the start.
static void DrawNewsString(uint left, uint right, int y, TextColour colour, const NewsItem *ni)
Draw an unformatted news message truncated to a maximum length.
static void MoveToNextNewsItem()
Move to the next news item.
static void ShowTicker(NewsIterator ni)
Show news item in the ticker.
void DeleteNews(Tpredicate predicate)
Delete news items by predicate, and invalidate the message history if necessary.
void DeleteVehicleNews(VehicleID vid, StringID news)
Delete a news item type about a vehicle.
static void ShowNewspaper(const NewsItem *ni)
Open up an own newspaper window for the news item.
static const uint MIN_NEWS_AMOUNT
preferred minimum amount of news messages.
static NewsTypeData _news_type_data[]
Per-NewsType data.
static NewsIterator _forced_news
Forced news item.
void DeleteIndustryNews(IndustryID iid)
Remove news regarding given industry.
void DeleteStationNews(StationID sid)
Remove news regarding given station so there are no 'unknown station now accepts Mail' or 'First trai...
void ShowLastNewsMessage()
Show previous news item.
static const uint MAX_NEWS_AMOUNT
Do not exceed this number of news messages.
void DeleteInvalidEngineNews()
Remove engine announcements for invalid engines.
static bool ReadyForNextNewsItem()
Are we ready to show another news item? Only if no newspaper is displayed.
static TileIndex GetReferenceTile(NewsReferenceType reftype, uint32_t ref)
Get the position a news-reference is referencing.
static std::list< NewsItem >::iterator DeleteNewsItem(std::list< NewsItem >::iterator ni)
Delete a news item from the queue.
bool HideActiveNewsMessage()
Close active news message window.
void ShowMessageHistory()
Display window with news messages history.
void ChangeVehicleNews(VehicleID from_index, VehicleID to_index)
Report a change in vehicle IDs (due to autoreplace) to affected vehicle news.
CommandCost CmdCustomNewsItem(DoCommandFlag flags, NewsType type, NewsReferenceType reftype1, CompanyID company, uint32_t reference, const std::string &text)
Create a new custom news item.
void InitNewsItemStructs()
Initialize the news-items data structures.
static void MoveToNextTickerItem()
Move to the next ticker item.
const NewsContainer & GetNews()
Get read-only reference to all news items.
static void ShowNewsMessage(NewsIterator ni)
Do a forced show of a specific message.
static NewsIterator _current_news
Current news item (last item shown regularly).
const NewsItem * GetStatusbarNews()
Get pointer to the current status bar news item.
void AddNewsItem(StringID string, NewsType type, NewsFlag flags, NewsReferenceType reftype1, uint32_t ref1, NewsReferenceType reftype2, uint32_t ref2, std::unique_ptr< NewsAllocatedData > &&data)
Add a new newsitem to be shown.
static bool ReadyForNextTickerItem()
Are we ready to show another ticker item? Only if nothing is in the newsticker is displayed.
static WindowDesc * _news_window_layout[]
Window layouts for news items.
static NewsIterator _statusbar_news
Current status bar news item.
@ NT_END
end-of-array marker
NewsReferenceType
References to objects in news.
@ NR_TILE
Reference tile. Scroll to tile when clicking on the news.
@ NR_STATION
Reference station. Scroll to station when clicking on the news. Delete news when station is deleted.
@ NR_ENGINE
Reference engine.
@ NR_TOWN
Reference town. Scroll to town when clicking on the news.
@ NR_INDUSTRY
Reference industry. Scroll to industry when clicking on the news. Delete news when industry is delete...
@ NR_NONE
Empty reference.
@ NR_VEHICLE
Reference vehicle. Scroll to vehicle when clicking on the news. Delete news when vehicle is deleted.
NewsContainer::const_iterator NewsIterator
Iterator type for news items.
NewsDisplay
News display options.
@ ND_OFF
Only show a reminder in the status bar.
std::list< NewsItem > NewsContainer
Container type for storing news items.
NewsFlag
Various OR-able news-item flags.
@ NF_NO_TRANSPARENT
Bit value for disabling transparency.
@ NF_SHADE
Bit value for enabling shading.
@ NF_VEHICLE_PARAM0
Bit value for specifying that string param 0 contains a vehicle ID. (special autoreplace behaviour)
@ NFB_WINDOW_LAYOUT
First bit for window layout.
@ NF_NORMAL
Normal news item. (Newspaper with text only)
@ NF_INCOLOUR
Bit value for coloured news.
@ NFB_WINDOW_LAYOUT_COUNT
Number of bits for window layout.
static const uint8_t PC_GREY
Grey palette colour.
static const uint8_t PC_WHITE
White palette colour.
static const uint8_t PC_BLACK
Black palette colour.
A number of safeguards to prevent using unsafe methods.
static const SettingDesc * GetSettingFromName(const std::string_view name, const SettingTable &settings)
Given a name of setting, return a setting description from the table.
ClientSettings _settings_client
The current settings for this game.
Functions and types used internally for the settings configurations.
bool ScrollMainWindowTo(int x, int y, int z, bool instant)
Scrolls the main window to given coordinates.
Functions related to sound.
SoundFx
Sound effects from baseset.
@ SND_1D_APPLAUSE
27 == 0x1B News: first vehicle at station
@ SND_16_NEWS_TICKER
20 == 0x14 News ticker
@ SND_1E_NEW_ENGINE
28 == 0x1C News: new engine available
static const PaletteID PALETTE_NEWSPAPER
Recolour sprite for newspaper-greying.
Base classes/functions for stations.
bool IsNewsTickerShown()
Checks whether the news ticker is currently being used.
Functions, definitions and such used only by the GUI.
@ SBI_SHOW_REMINDER
show a reminder (dot on the right side of the statusbar)
@ SBI_SHOW_TICKER
start scrolling news
@ SBI_NEWS_DELETED
abort current news display (active news were deleted)
Definition of base types and functions in a cross-platform compatible way.
#define lengthof(array)
Return the length of an fixed size array.
static void StrMakeValid(T &dst, const char *str, const char *last, StringValidationSettings settings)
Copies the valid (UTF-8) characters from str up to last to the dst.
Functions related to low-level strings.
@ SVS_REPLACE_TAB_CR_NL_WITH_SPACE
Replace tabs ('\t'), carriage returns ('\r') and newlines (' ') with spaces.
void SetDParam(size_t n, uint64_t v)
Set a string parameter v at index n in the global string parameter array.
std::string GetString(StringID string)
Resolve the given StringID into a std::string with all the associated DParam lookups and formatting.
void CopyOutDParam(std::vector< StringParameterData > &backup, size_t num)
Copy num string parameters from the global string parameter array to the backup.
void CopyInDParam(const std::span< const StringParameterData > backup)
Copy the parameters from the backup into the global string parameter array.
TextDirection _current_text_dir
Text direction of the currently selected language.
void SetDParamStr(size_t n, const char *str)
This function is used to "bind" a C string to a OpenTTD dparam slot.
Functions related to OTTD's strings.
@ TD_RTL
Text is written right-to-left by default.
uint32_t StringID
Numeric value that represents a string, independent of the selected language.
static const StringID INVALID_STRING_ID
Constant representing an invalid string (16bit in case it is used in savegames)
TileIndex xy
Base tile of the station.
VehicleType type
Type of vehicle.
SoundSettings sound
sound effect settings
GUISettings gui
settings related to the GUI
Dimensions (a width and height) of a rectangle in 2D.
uint8_t news_message_timeout
how much longer than the news message "age" should we keep the message in the history
TimerGameCalendar::Year coloured_news_year
when does newspaper become coloured?
int32_t Read(const void *object) const
Read the integer from the the actual setting.
int date_width
< Height of a single line in the news history window including spacing.
void OnClick(Point pt, WidgetID widget, int click_count) override
A click with the left mouse button has been made on the window.
void DrawWidget(const Rect &r, WidgetID widget) const override
Draw the contents of a nested widget.
void OnInvalidateData(int data=0, bool gui_scope=true) override
Some data on this window has become invalid.
void OnResize() override
Called after the window got resized.
Scrollbar * vscroll
< Width needed for the date part.
void UpdateWidgetSize(WidgetID widget, Dimension &size, const Dimension &padding, Dimension &fill, Dimension &resize) override
Update size and resize step of a widget in the window.
Information about a single item of news.
TimerGameCalendar::Date date
Calendar date to show for the news.
std::unique_ptr< NewsAllocatedData > data
Custom data for the news item that will be deallocated (deleted) when the news item has reached its e...
std::vector< StringParameterData > params
Parameters for string resolving.
NewsType type
Type of the news.
uint32_t ref1
Reference 1 to some object: Used for a possible viewport, scrolling after clicking on the news,...
NewsReferenceType reftype1
Type of ref1.
TimerGameEconomy::Date economy_date
Economy date of the news item, never shown but used to calculate age.
uint32_t ref2
Reference 2 to some object: Used for scrolling after clicking on the news, and for deleting the news ...
StringID string_id
Message text.
NewsItem(StringID string_id, NewsType type, NewsFlag flags, NewsReferenceType reftype1, uint32_t ref1, NewsReferenceType reftype2, uint32_t ref2, std::unique_ptr< NewsAllocatedData > &&data)
Create a new newsitem to be shown.
NewsFlag flags
NewsFlags bits.
NewsReferenceType reftype2
Type of ref2.
NewsDisplay GetDisplay() const
Return the news display option.
const char *const name
Name.
const SoundFx sound
Sound.
const uint8_t age
Maximum age of news items (in days)
Window class displaying a news item.
uint16_t chat_height
Height of the chat window.
void OnResize() override
Called after the window got resized.
static int duration
Remaining time for showing the current news message (may only be access while a news item is displaye...
void DrawWidget(const Rect &r, WidgetID widget) const override
Draw the contents of a nested widget.
void UpdateWidgetSize(WidgetID widget, Dimension &size, const Dimension &padding, Dimension &fill, Dimension &resize) override
Update size and resize step of a widget in the window.
Point OnInitialPosition(int16_t sm_width, int16_t sm_height, int window_number) override
Compute the initial position of the window.
void OnRealtimeTick(uint delta_ms) override
Called periodically.
uint16_t status_height
Height of the status bar window.
void SetStringParameters(WidgetID widget) const override
Initialize string parameters for a widget.
const NewsItem * ni
News item to display.
void SetWindowTop(int newtop)
Moves the window to a new top coordinate.
void OnInvalidateData(int data=0, bool gui_scope=true) override
Some data on this window has become invalid.
IntervalTimer< TimerWindow > scroll_interval
Scroll the news message slowly up from the bottom.
void OnClick(Point pt, WidgetID widget, int click_count) override
A click with the left mouse button has been made on the window.
Coordinates of a point in 2D.
static bool IsValidID(size_t index)
Tests whether given index can be used to get valid (non-nullptr) Titem.
static Titem * Get(size_t index)
Returns Titem with given index.
constexpr uint Horizontal() const
Get total horizontal padding of RectPadding.
constexpr uint Vertical() const
Get total vertical padding of RectPadding.
Specification of a rectangle with absolute coordinates of all edges.
Rect WithWidth(int width, bool end) const
Copy Rect and set its width.
Rect Shrink(int s) const
Copy and shrink Rect by s pixels.
Rect Indent(int indent, bool end) const
Copy Rect and indent it from its position.
Properties of config file settings.
virtual bool IsIntSetting() const
Check whether this setting is an integer type setting.
const struct IntSettingDesc * AsIntSetting() const
Get the setting description of this setting as an integer setting.
bool news_ticker
Play a ticker sound when a news item is published.
bool news_full
Play sound effects associated to certain news types.
static Station * Get(size_t index)
Gets station with given index.
static bool IsValidID(size_t index)
Tests whether given index is a valid index for station of this type.
static T * From(Vehicle *v)
Converts a Vehicle to SpecializedVehicle with type checking.
int32_t z_pos
z coordinate.
int32_t y_pos
y coordinate.
int32_t x_pos
x coordinate.
int top
Screen coordinate top edge of the viewport.
High level window description.
Data structure for an opened window.
void ReInit(int rx=0, int ry=0, bool reposition=false)
Re-initialize a window, and optionally change its size.
virtual void Close(int data=0)
Hide the window and all its child windows, and mark them for a later deletion.
void FinishInitNested(WindowNumber window_number=0)
Perform the second part of the initialization of a nested widget tree.
ResizeInfo resize
Resize information.
void CreateNestedTree()
Perform the first part of the initialization of a nested widget tree.
ViewportData * viewport
Pointer to viewport data, if present.
Owner owner
The owner of the content shown in this window. Company colour is acquired from this variable.
int left
x position of left edge of the window
int top
y position of top edge of the window
const NWID * GetWidget(WidgetID widnum) const
Get the nested widget with number widnum from the nested widget tree.
const Scrollbar * GetScrollbar(WidgetID widnum) const
Return the Scrollbar to a widget index.
int height
Height of the window (number of pixels down in y direction)
int width
width of the window (number of pixels to the right in x direction)
WindowNumber window_number
Window number within the window class.
bool IsValidTile(Tile tile)
Checks if a tile is valid.
constexpr TileIndex INVALID_TILE
The very nice invalid tile marker.
Definition of Interval and OneShot timers.
Definition of the game-calendar-timer.
Definition of the Window system.
PaletteID GetEnginePalette(EngineID engine_type, CompanyID company)
Get the colour map for an engine.
Base class for all vehicles.
Functions related to vehicles.
void ShowVehicleViewWindow(const Vehicle *v)
Shows the vehicle view window of the given vehicle.
Functions related to the vehicle's GUIs.
@ EIT_PREVIEW
Vehicle drawn in preview window, news, ...
@ VEH_ROAD
Road vehicle type.
@ VEH_AIRCRAFT
Aircraft vehicle type.
@ VEH_SHIP
Ship vehicle type.
@ VEH_TRAIN
Train vehicle type.
uint32_t VehicleID
The type all our vehicle IDs have.
bool ScrollWindowToTile(TileIndex tile, Window *w, bool instant)
Scrolls the viewport in a window to a given location.
bool ScrollMainWindowToTile(TileIndex tile, bool instant)
Scrolls the viewport of the main window to a given location.
Functions related to (drawing on) viewports.
void CloseWindowById(WindowClass cls, WindowNumber number, bool force, int data)
Close a window by its class and window number (if it is open).
Window * FindWindowByClass(WindowClass cls)
Find any window by its class.
int PositionNewsMessage(Window *w)
(Re)position news message window at the screen.
void InvalidateWindowData(WindowClass cls, WindowNumber number, int data, bool gui_scope)
Mark window data of the window of a given class and specific window number as invalid (in need of re-...
Window * FindWindowById(WindowClass cls, WindowNumber number)
Find a window by its class and window number.
Window functions not directly related to making/drawing windows.
@ WF_DISABLE_VP_SCROLL
Window does not do autoscroll,.
@ WDP_AUTO
Find a place automatically.
@ WDP_MANUAL
Manually align the window (so no automatic location finding)
@ WC_NEWS_WINDOW
News window; Window numbers:
@ WC_STATUS_BAR
Statusbar (at the bottom of your screen); Window numbers:
@ WC_SEND_NETWORK_MSG
Chatbox; Window numbers:
@ WC_NONE
No window, redirects to WC_MAIN_WINDOW.
@ WC_MESSAGE_HISTORY
News history list; Window numbers:
Functions related to zooming.
ZoomLevel ScaleZoomGUI(ZoomLevel value)
Scale zoom level relative to GUI zoom.
@ ZOOM_LVL_NEWS
Default zoom level for the news messages.