# transparency.h File Reference

Functions related to transparency. More...

`#include "gfx_func.h"`
`#include "openttd.h"`
`#include "core/bitmath_func.hpp"`

Go to the source code of this file.

## Typedefs

typedef uint | TransparencyOptionBits
| transparency option bits

## Enumerations

enum | TransparencyOption { TO_SIGNS = 0, TO_TREES, TO_HOUSES, TO_INDUSTRIES, TO_BUILDINGS, TO_BRIDGES, TO_STRUCTURES, TO_CATENARY, TO_LOADING, TO_END }
| Transparency option bits: which position in _transparency_opt stands for which transparency. More...

## Functions

static bool | IsTransparencySet (TransparencyOption to)
| Check if the transparency option bit is set and if we aren't in the game menu (there's never transparency).
static bool | IsInvisibilitySet (TransparencyOption to)
| Check if the invisibility option bit is set and if we aren't in the game menu (there's never transparency).
static void | ToggleTransparency (TransparencyOption to)
| Toggle the transparency option bit.
static void | ToggleInvisibility (TransparencyOption to)
| Toggle the invisibility option bit.
static void | ToggleInvisibilityWithTransparency (TransparencyOption to)
| Toggles between invisible and solid state.
static void | ToggleTransparencyLock (TransparencyOption to)
| Toggle the transparency lock bit.
static void | ResetRestoreAllTransparency ()
| Set or clear all non-locked transparency options.

## Variables

TransparencyOptionBits | _transparency_opt
TransparencyOptionBits | _transparency_lock
TransparencyOptionBits | _invisibility_opt

## Detailed Description

Functions related to transparency.

Definition in file transparency.h.

## Enumeration Type Documentation

enum TransparencyOption

Transparency option bits: which position in _transparency_opt stands for which transparency.

If you change the order, change the order of the ShowTransparencyToolbar() stuff in transparency_gui.cpp too. If you add or remove an option don't forget to change the transparency 'hot keys' in main_gui.cpp.

Enumerator:

  TO_SIGNS | signs
  TO_TREES | trees
  TO_HOUSES | town buildings
  TO_INDUSTRIES | industries
  TO_BUILDINGS | company buildings - depots, stations, HQ, ...
  TO_BRIDGES | bridges
  TO_STRUCTURES | unmovable structures
  TO_CATENARY | catenary
  TO_LOADING | loading indicators

Definition at line 24 of file transparency.h.

## Function Documentation

static bool IsInvisibilitySet | ( | TransparencyOption | to | ) | `[inline, static]`

Check if the invisibility option bit is set and if we aren't in the game menu (there's never transparency).

Parameters:

  | to | the structure which invisibility option is ask for

Definition at line 59 of file transparency.h.

References HasBit().

Referenced by DrawBridgePillars(), DrawBridgeTramBits(), DrawCommonTileSeq(), DrawTile_Town(), DrawTile_TunnelBridge(), DrawTramCatenary(), HasCatenaryDrawn(), and ToggleInvisibilityWithTransparency().

static bool IsTransparencySet | ( | TransparencyOption | to | ) | `[inline, static]`

Check if the transparency option bit is set and if we aren't in the game menu (there's never transparency).

Parameters:

  | to | the structure which transparency option is ask for

Definition at line 48 of file transparency.h.

References HasBit().

Referenced by DrawBridgePillars(), DrawBridgeTramBits(), DrawCatenary(), DrawCatenaryOnTunnel(), DrawCatenaryRailway(), DrawCommonTileSeq(), DrawTile_Town(), DrawTile_TunnelBridge(), DrawTramCatenary(), TransparenciesWindow::OnClick(), and TransparenciesWindow::OnInvalidateData().

static void ToggleInvisibility | ( | TransparencyOption | to | ) | `[inline, static]`

Toggle the invisibility option bit.

Parameters:

  | to | the structure which invisibility option is toggle

Definition at line 79 of file transparency.h.

References ToggleBit().

Referenced by TransparenciesWindow::OnClick().

static void ToggleInvisibilityWithTransparency | ( | TransparencyOption | to | ) | `[inline, static]`

Toggles between invisible and solid state.

If object is transparent, then it is made invisible. Used by the keyboard shortcuts.

Parameters:

  | to | the object type which invisibility option to toggle

Definition at line 91 of file transparency.h.

References ClrBit(), IsInvisibilitySet(), and SetBit().

Referenced by MainWindow::OnKeyPress().

static void ToggleTransparency | ( | TransparencyOption | to | ) | `[inline, static]`

Toggle the transparency option bit.

Parameters:

  | to | the transparency option to be toggled

Definition at line 69 of file transparency.h.

References ToggleBit().

Referenced by TransparenciesWindow::OnClick(), and MainWindow::OnKeyPress().

static void ToggleTransparencyLock | ( | TransparencyOption | to | ) | `[inline, static]`

Toggle the transparency lock bit.

Parameters:

  | to | the transparency option to be locked or unlocked

Definition at line 107 of file transparency.h.

References ToggleBit().

Referenced by TransparenciesWindow::OnClick().