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/**
* @file llgroupcolormap.h
* @brief Per-group nameplate tint registry.
*
* Stores a client-side color for each group UUID. When the group color is
* set, every avatar whose *active* group tag matches that UUID gets their
* nameplate rendered in that color instead of the default.
*
* Data is persisted to <account_dir>/settings_group_colors.xml so colors
* survive relogs. The file is keyed by group UUID string → LLColor4 LLSD.
*
* $LicenseInfo:firstyear=2024&license=viewerlgpl$
* Second Life Viewer Source Code
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 2.1 only.
* $/LicenseInfo$
*/
#ifndef LL_LLGROUPCOLORMAP_H
#define LL_LLGROUPCOLORMAP_H
#include "llsingleton.h"
#include "lluuid.h"
#include "v4color.h"
#include <unordered_map>
class LLGroupColorMap : public LLSingleton<LLGroupColorMap>
{
LLSINGLETON(LLGroupColorMap);
~LLGroupColorMap() = default;
LOG_CLASS(LLGroupColorMap);
public:
// ---- Color CRUD ---------------------------------------------------------
/** Set (or clear) the nameplate tint for a group.
* Pass LLColor4::transparent (alpha == 0) to remove the color entry. */
void setGroupColor(const LLUUID& group_id, const LLColor4& color);
/** Return the tint for @p group_id, or LLColor4::transparent if none. */
LLColor4 getGroupColor(const LLUUID& group_id) const;
/** True if a non-transparent color is stored for this group. */
bool hasGroupColor(const LLUUID& group_id) const;
/** Remove the color entry for this group. */
void clearGroupColor(const LLUUID& group_id);
// ---- Persistence --------------------------------------------------------
void loadFromDisk();
void saveToDisk() const;
// ---- Cache invalidation -------------------------------------------------
/** Called after a color is changed so nametags rebuild on next idle. */
static void invalidateAllNameTags();
private:
static std::string getFilePath();
// group_uuid → RGBA color (std::hash<LLUUID> is specialised in lluuid.h)
std::unordered_map<LLUUID, LLColor4> mColors;
};
#endif // LL_LLGROUPCOLORMAP_H
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