tdesktop/Telegram/SourceFiles/window/themes/window_theme.h

142 lines
3.4 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#pragma once
namespace Window {
namespace Theme {
namespace internal {
constexpr int32 kUninitializedBackground = -999;
constexpr int32 kTestingThemeBackground = -666;
constexpr int32 kTestingDefaultBackground = -665;
constexpr int32 kTestingEditorBackground = -664;
} // namespace internal
constexpr int32 kThemeBackground = -2;
constexpr int32 kCustomBackground = -1;
constexpr int32 kInitialBackground = 0;
constexpr int32 kDefaultBackground = 105;
struct Cached {
QByteArray colors;
QByteArray background;
bool tiled = false;
int32 paletteChecksum = 0;
int32 contentChecksum = 0;
};
bool Load(const QString &pathRelative, const QString &pathAbsolute, const QByteArray &content, Cached &cache);
void Unload();
struct Instance {
style::palette palette;
QImage background;
Cached cached;
bool tiled = false;
};
struct Preview {
QString path;
Instance instance;
QByteArray content;
QImage preview;
};
bool Apply(const QString &filepath);
bool Apply(std::unique_ptr<Preview> preview);
void ApplyDefault();
bool ApplyEditedPalette(const QString &path, const QByteArray &content);
void KeepApplied();
bool IsNonDefaultUsed();
bool IsNightTheme();
void SwitchNightTheme(bool enabled);
void Revert();
bool LoadFromFile(const QString &file, Instance *out, QByteArray *outContent);
bool IsPaletteTestingPath(const QString &path);
struct BackgroundUpdate {
enum class Type {
New,
Changed,
Start,
TestingTheme,
RevertingTheme,
ApplyingTheme,
};
BackgroundUpdate(Type type, bool tiled) : type(type), tiled(tiled) {
}
bool paletteChanged() const {
return (type == Type::TestingTheme || type == Type::RevertingTheme);
}
Type type;
bool tiled;
};
class ChatBackground : public base::Observable<BackgroundUpdate> {
public:
// This method is allowed to (and should) be called before start().
void setThemeData(QImage &&themeImage, bool themeTile);
// This method is setting the default (themed) image if none was set yet.
void start();
void setImage(int32 id, QImage &&image = QImage());
void setTile(bool tile);
void reset();
enum class ChangeMode {
SwitchToThemeBackground,
LeaveCurrentCustomBackground,
};
void setTestingTheme(Instance &&theme, ChangeMode mode = ChangeMode::SwitchToThemeBackground);
void setTestingDefaultTheme();
void keepApplied();
void revert();
int32 id() const;
const QPixmap &pixmap() const {
return _pixmap;
}
const QPixmap &pixmapForTiled() const {
return _pixmapForTiled;
}
bool tile() const;
bool tileForSave() const;
private:
void ensureStarted();
void saveForRevert();
void setPreparedImage(QImage &&image);
void writeNewBackgroundSettings();
int32 _id = internal::kUninitializedBackground;
QPixmap _pixmap;
QPixmap _pixmapForTiled;
bool _tile = false;
QImage _themeImage;
bool _themeTile = false;
int32 _idForRevert = internal::kUninitializedBackground;
QImage _imageForRevert;
bool _tileForRevert = false;
};
ChatBackground *Background();
void ComputeBackgroundRects(QRect wholeFill, QSize imageSize, QRect &to, QRect &from);
bool CopyColorsToPalette(const QString &path, const QByteArray &themeContent);
bool ReadPaletteValues(const QByteArray &content, base::lambda<bool(QLatin1String name, QLatin1String value)> callback);
} // namespace Theme
} // namespace Window