tdesktop/Telegram/SourceFiles/ui/images.h

489 lines
14 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
*/
#pragma once
#include "mtproto/file_download.h"
QImage imageBlur(QImage img);
void imageRound(QImage &img);
inline uint32 packInt(int32 a) {
return (a < 0) ? uint32(int64(a) + 0x100000000LL) : uint32(a);
}
inline int32 unpackInt(uint32 a) {
return (a > 0x7FFFFFFFU) ? int32(int64(a) - 0x100000000LL) : int32(a);
}
inline uint64 packUIntUInt(uint32 a, uint32 b) {
return (uint64(a) << 32) | uint64(b);
}
inline uint64 packUIntInt(uint32 a, int32 b) {
return packUIntUInt(a, packInt(b));
}
inline uint64 packIntUInt(int32 a, uint32 b) {
return packUIntUInt(packInt(a), b);
}
inline uint64 packIntInt(int32 a, int32 b) {
return packUIntUInt(packInt(a), packInt(b));
}
inline uint32 unpackUIntFirst(uint64 v) {
return uint32(v >> 32);
}
inline int32 unpackIntFirst(uint64 v) {
return unpackInt(unpackUIntFirst(v));
}
inline uint32 unpackUIntSecond(uint64 v) {
return uint32(v & 0xFFFFFFFFULL);
}
inline int32 unpackIntSecond(uint64 v) {
return unpackInt(unpackUIntSecond(v));
}
class StorageImageLocation {
public:
StorageImageLocation() : _widthheight(0), _dclocal(0), _volume(0), _secret(0) {
}
StorageImageLocation(int32 width, int32 height, int32 dc, const uint64 &volume, int32 local, const uint64 &secret) : _widthheight(packIntInt(width, height)), _dclocal(packIntInt(dc, local)), _volume(volume), _secret(secret) {
}
StorageImageLocation(int32 width, int32 height, const MTPDfileLocation &location) : _widthheight(packIntInt(width, height)), _dclocal(packIntInt(location.vdc_id.v, location.vlocal_id.v)), _volume(location.vvolume_id.v), _secret(location.vsecret.v) {
}
bool isNull() const {
return !_dclocal;
}
int32 width() const {
return unpackIntFirst(_widthheight);
}
int32 height() const {
return unpackIntSecond(_widthheight);
}
void setSize(int32 width, int32 height) {
_widthheight = packIntInt(width, height);
}
int32 dc() const {
return unpackIntFirst(_dclocal);
}
uint64 volume() const {
return _volume;
}
int32 local() const {
return unpackIntSecond(_dclocal);
}
uint64 secret() const {
return _secret;
}
static StorageImageLocation Null;
private:
uint64 _widthheight;
uint64 _dclocal;
uint64 _volume;
uint64 _secret;
friend inline bool operator==(const StorageImageLocation &a, const StorageImageLocation &b) {
return (a._dclocal == b._dclocal) && (a._volume == b._volume) && (a._secret == b._secret);
}
};
inline bool operator!=(const StorageImageLocation &a, const StorageImageLocation &b) {
return !(a == b);
}
enum ImagePixOption {
ImagePixSmooth = 0x01,
ImagePixBlurred = 0x02,
ImagePixRounded = 0x04,
ImagePixCircled = 0x08,
};
Q_DECLARE_FLAGS(ImagePixOptions, ImagePixOption);
Q_DECLARE_OPERATORS_FOR_FLAGS(ImagePixOptions);
QPixmap imagePix(QImage img, int w, int h, ImagePixOptions options, int outerw, int outerh);
class DelayedStorageImage;
class HistoryItem;
class Image {
public:
Image(const QString &file, QByteArray format = QByteArray());
Image(const QByteArray &filecontent, QByteArray format = QByteArray());
Image(const QPixmap &pixmap, QByteArray format = QByteArray());
Image(const QByteArray &filecontent, QByteArray format, const QPixmap &pixmap);
virtual void automaticLoad(const HistoryItem *item) { // auto load photo
}
virtual void automaticLoadSettingsChanged() {
}
virtual bool loaded() const {
return true;
}
virtual bool loading() const {
return false;
}
virtual bool displayLoading() const {
return false;
}
virtual void cancel() {
}
virtual float64 progress() const {
return 1;
}
virtual int32 loadOffset() const {
return 0;
}
const QPixmap &pix(int32 w = 0, int32 h = 0) const;
const QPixmap &pixRounded(int32 w = 0, int32 h = 0) const;
const QPixmap &pixCircled(int32 w = 0, int32 h = 0) const;
const QPixmap &pixBlurred(int32 w = 0, int32 h = 0) const;
const QPixmap &pixColored(const style::color &add, int32 w = 0, int32 h = 0) const;
const QPixmap &pixBlurredColored(const style::color &add, int32 w = 0, int32 h = 0) const;
const QPixmap &pixSingle(int32 w, int32 h, int32 outerw, int32 outerh) const;
const QPixmap &pixBlurredSingle(int32 w, int32 h, int32 outerw, int32 outerh) const;
QPixmap pixNoCache(int w = 0, int h = 0, ImagePixOptions options = 0, int outerw = -1, int outerh = -1) const;
QPixmap pixColoredNoCache(const style::color &add, int32 w = 0, int32 h = 0, bool smooth = false) const;
QPixmap pixBlurredColoredNoCache(const style::color &add, int32 w, int32 h = 0) const;
int32 width() const {
return qMax(countWidth(), 1);
}
int32 height() const {
return qMax(countHeight(), 1);
}
virtual void load(bool loadFirst = false, bool prior = true) {
}
virtual void loadEvenCancelled(bool loadFirst = false, bool prior = true) {
}
virtual const StorageImageLocation &location() const {
return StorageImageLocation::Null;
}
bool isNull() const;
void forget() const;
QByteArray savedFormat() const {
return _format;
}
QByteArray savedData() const {
return _saved;
}
virtual DelayedStorageImage *toDelayedStorageImage() {
return 0;
}
virtual const DelayedStorageImage *toDelayedStorageImage() const {
return 0;
}
virtual ~Image();
protected:
Image(QByteArray format = "PNG") : _format(format), _forgot(false) {
}
void restore() const;
virtual void checkload() const {
}
void invalidateSizeCache() const;
virtual int32 countWidth() const {
restore();
return _data.width();
}
virtual int32 countHeight() const {
restore();
return _data.height();
}
mutable QByteArray _saved, _format;
mutable bool _forgot;
mutable QPixmap _data;
private:
typedef QMap<uint64, QPixmap> Sizes;
mutable Sizes _sizesCache;
};
typedef QPair<uint64, uint64> StorageKey;
inline uint64 storageMix32To64(int32 a, int32 b) {
return (uint64(*reinterpret_cast<uint32*>(&a)) << 32) | uint64(*reinterpret_cast<uint32*>(&b));
}
inline StorageKey storageKey(int32 dc, const uint64 &volume, int32 local) {
return StorageKey(storageMix32To64(dc, local), volume);
}
inline StorageKey storageKey(const MTPDfileLocation &location) {
return storageKey(location.vdc_id.v, location.vvolume_id.v, location.vlocal_id.v);
}
inline StorageKey storageKey(const StorageImageLocation &location) {
return storageKey(location.dc(), location.volume(), location.local());
}
class RemoteImage : public Image {
public:
RemoteImage() : _loader(0) {
}
void automaticLoad(const HistoryItem *item); // auto load photo
void automaticLoadSettingsChanged();
bool loaded() const;
bool loading() const {
return amLoading();
}
bool displayLoading() const;
void cancel();
float64 progress() const;
int32 loadOffset() const;
void setData(QByteArray &bytes, const QByteArray &format = QByteArray());
void load(bool loadFirst = false, bool prior = true);
void loadEvenCancelled(bool loadFirst = false, bool prior = true);
~RemoteImage();
protected:
// If after loading the image we need to shrink it to fit into a
// specific size, you can return this size here.
virtual QSize shrinkBox() const {
return QSize();
}
virtual void setInformation(int32 size, int32 width, int32 height) = 0;
virtual FileLoader *createLoader(LoadFromCloudSetting fromCloud, bool autoLoading) = 0;
void checkload() const {
doCheckload();
}
void loadLocal();
private:
mutable FileLoader *_loader;
bool amLoading() const {
return _loader && _loader != CancelledFileLoader;
}
void doCheckload() const;
};
class StorageImage : public RemoteImage {
public:
StorageImage(const StorageImageLocation &location, int32 size = 0);
StorageImage(const StorageImageLocation &location, QByteArray &bytes);
const StorageImageLocation &location() const override {
return _location;
}
protected:
void setInformation(int32 size, int32 width, int32 height) override;
FileLoader *createLoader(LoadFromCloudSetting fromCloud, bool autoLoading) override;
StorageImageLocation _location;
int32 _size;
int32 countWidth() const override;
int32 countHeight() const override;
};
class DelayedStorageImage : public StorageImage {
public:
DelayedStorageImage();
DelayedStorageImage(int32 w, int32 h);
DelayedStorageImage(QByteArray &bytes);
void setStorageLocation(const StorageImageLocation location);
virtual DelayedStorageImage *toDelayedStorageImage() {
return this;
}
virtual const DelayedStorageImage *toDelayedStorageImage() const {
return this;
}
void automaticLoad(const HistoryItem *item); // auto load photo
void automaticLoadSettingsChanged();
bool loading() const {
return _location.isNull() ? _loadRequested : StorageImage::loading();
}
bool displayLoading() const;
void cancel();
void load(bool loadFirst = false, bool prior = true);
void loadEvenCancelled(bool loadFirst = false, bool prior = true);
private:
bool _loadRequested, _loadCancelled, _loadFromCloud;
};
class WebImage : public RemoteImage {
public:
// If !box.isEmpty() then resize the image to fit in this box.
WebImage(const QString &url, QSize box = QSize());
WebImage(const QString &url, int width, int height);
void setSize(int width, int height);
protected:
QSize shrinkBox() const override {
return _box;
}
void setInformation(int32 size, int32 width, int32 height) override;
FileLoader *createLoader(LoadFromCloudSetting fromCloud, bool autoLoading) override;
int32 countWidth() const override;
int32 countHeight() const override;
private:
QString _url;
QSize _box;
int32 _size, _width, _height;
};
namespace internal {
Image *getImage(const QString &file, QByteArray format);
Image *getImage(const QString &url, QSize box);
Image *getImage(const QString &url, int width, int height);
Image *getImage(const QByteArray &filecontent, QByteArray format);
Image *getImage(const QPixmap &pixmap, QByteArray format);
Image *getImage(const QByteArray &filecontent, QByteArray format, const QPixmap &pixmap);
Image *getImage(int32 width, int32 height);
StorageImage *getImage(const StorageImageLocation &location, int32 size = 0);
StorageImage *getImage(const StorageImageLocation &location, const QByteArray &bytes);
} // namespace internal
class ImagePtr : public ManagedPtr<Image> {
public:
ImagePtr();
ImagePtr(const QString &file, QByteArray format = QByteArray()) : Parent(internal::getImage(file, format)) {
}
ImagePtr(const QString &url, QSize box) : Parent(internal::getImage(url, box)) {
}
ImagePtr(const QString &url, int width, int height) : Parent(internal::getImage(url, width, height)) {
}
ImagePtr(const QByteArray &filecontent, QByteArray format = QByteArray()) : Parent(internal::getImage(filecontent, format)) {
}
ImagePtr(const QByteArray &filecontent, QByteArray format, const QPixmap &pixmap) : Parent(internal::getImage(filecontent, format, pixmap)) {
}
ImagePtr(const QPixmap &pixmap, QByteArray format) : Parent(internal::getImage(pixmap, format)) {
}
ImagePtr(const StorageImageLocation &location, int32 size = 0) : Parent(internal::getImage(location, size)) {
}
ImagePtr(const StorageImageLocation &location, const QByteArray &bytes) : Parent(internal::getImage(location, bytes)) {
}
ImagePtr(int32 width, int32 height, const MTPFileLocation &location, ImagePtr def = ImagePtr());
ImagePtr(int32 width, int32 height) : Parent(internal::getImage(width, height)) {
}
};
inline QSize shrinkToKeepAspect(int32 width, int32 height, int32 towidth, int32 toheight) {
int32 w = qMax(width, 1), h = qMax(height, 1);
if (w * toheight > h * towidth) {
h = qRound(h * towidth / float64(w));
w = towidth;
} else {
w = qRound(w * toheight / float64(h));
h = toheight;
}
return QSize(qMax(w, 1), qMax(h, 1));
}
void clearStorageImages();
void clearAllImages();
int64 imageCacheSize();
class PsFileBookmark;
class ReadAccessEnabler {
public:
ReadAccessEnabler(const PsFileBookmark *bookmark);
ReadAccessEnabler(const QSharedPointer<PsFileBookmark> &bookmark);
bool failed() const {
return _failed;
}
~ReadAccessEnabler();
private:
const PsFileBookmark *_bookmark;
bool _failed;
};
class FileLocation {
public:
FileLocation(StorageFileType type, const QString &name);
FileLocation() : size(0) {
}
bool check() const;
const QString &name() const;
void setBookmark(const QByteArray &bookmark);
QByteArray bookmark() const;
bool isEmpty() const {
return name().isEmpty();
}
bool accessEnable() const;
void accessDisable() const;
StorageFileType type;
QString fname;
QDateTime modified;
qint32 size;
private:
QSharedPointer<PsFileBookmark> _bookmark;
};
inline bool operator==(const FileLocation &a, const FileLocation &b) {
return a.type == b.type && a.name() == b.name() && a.modified == b.modified && a.size == b.size;
}
inline bool operator!=(const FileLocation &a, const FileLocation &b) {
return !(a == b);
}
typedef QPair<uint64, uint64> MediaKey;
inline uint64 mediaMix32To64(int32 a, int32 b) {
return (uint64(*reinterpret_cast<uint32*>(&a)) << 32) | uint64(*reinterpret_cast<uint32*>(&b));
}
inline MediaKey mediaKey(LocationType type, int32 dc, const uint64 &id) {
return MediaKey(mediaMix32To64(type, dc), id);
}
inline StorageKey mediaKey(const MTPDfileLocation &location) {
return storageKey(location.vdc_id.v, location.vvolume_id.v, location.vlocal_id.v);
}