tdesktop/Telegram/SourceFiles/mediaview.h

279 lines
7.7 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 "dropdown.h"
class MediaView : public TWidget, public RPCSender, public ClickHandlerHost {
Q_OBJECT
public:
MediaView();
void paintEvent(QPaintEvent *e) override;
void keyPressEvent(QKeyEvent *e) override;
void mousePressEvent(QMouseEvent *e) override;
void mouseMoveEvent(QMouseEvent *e) override;
void mouseReleaseEvent(QMouseEvent *e) override;
void contextMenuEvent(QContextMenuEvent *e) override;
void touchEvent(QTouchEvent *e);
bool event(QEvent *e) override;
void hide();
void updateOver(QPoint mpos);
void showPhoto(PhotoData *photo, HistoryItem *context);
void showPhoto(PhotoData *photo, PeerData *context);
void showDocument(DocumentData *doc, HistoryItem *context);
void moveToScreen();
bool moveToNext(int32 delta);
void preloadData(int32 delta);
void leaveToChildEvent(QEvent *e, QWidget *child) override { // e -- from enterEvent() of child TWidget
updateOverState(OverNone);
}
void enterFromChildEvent(QEvent *e, QWidget *child) override { // e -- from leaveEvent() of child TWidget
updateOver(mapFromGlobal(QCursor::pos()));
}
void mediaOverviewUpdated(PeerData *peer, MediaOverviewType type);
void documentUpdated(DocumentData *doc);
void changingMsgId(HistoryItem *row, MsgId newId);
void updateDocSize();
void updateControls();
void updateDropdown();
void showSaveMsgFile();
void close();
void activateControls();
void onDocClick();
void clipCallback(ClipReaderNotification notification);
PeerData *ui_getPeerForMouseAction();
void clearData();
~MediaView();
// ClickHandlerHost interface
void clickHandlerActiveChanged(const ClickHandlerPtr &p, bool active) override;
void clickHandlerPressedChanged(const ClickHandlerPtr &p, bool pressed) override;
public slots:
void onHideControls(bool force = false);
void onDropdownHiding();
void onScreenResized(int screen);
void onToMessage();
void onSaveAs();
void onDownload();
void onSaveCancel();
void onShowInFolder();
void onForward();
void onDelete();
void onOverview();
void onCopy();
void onMenuDestroy(QObject *obj);
void receiveMouse();
void onDropdown();
void onCheckActive();
void onTouchTimer();
void updateImage();
private:
void displayPhoto(PhotoData *photo, HistoryItem *item);
void displayDocument(DocumentData *doc, HistoryItem *item);
void findCurrent();
void loadBack();
// Radial animation interface.
float64 radialProgress() const;
bool radialLoading() const;
QRect radialRect() const;
void radialStart();
uint64 radialTimeShift() const;
// Computes the last OverviewChatPhotos PhotoData* from _history or _migrated.
struct LastChatPhoto {
HistoryItem *item;
PhotoData *photo;
};
LastChatPhoto computeLastOverviewChatPhoto();
void computeAdditionalChatPhoto(PeerData *peer, PhotoData *lastOverviewPhoto);
void userPhotosLoaded(UserData *u, const MTPphotos_Photos &photos, mtpRequestId req);
void deletePhotosDone(const MTPVector<MTPlong> &result);
bool deletePhotosFail(const RPCError &error);
void updateHeader();
void snapXY();
void step_state(uint64 ms, bool timer);
void step_radial(uint64 ms, bool timer);
QBrush _transparentBrush;
PhotoData *_photo = nullptr;
DocumentData *_doc = nullptr;
MediaOverviewType _overview = OverviewCount;
QRect _closeNav, _closeNavIcon;
QRect _leftNav, _leftNavIcon, _rightNav, _rightNavIcon;
QRect _headerNav, _nameNav, _dateNav;
QRect _saveNav, _saveNavIcon, _moreNav, _moreNavIcon;
bool _leftNavVisible = false;
bool _rightNavVisible = false;
bool _saveVisible = false;
bool _headerHasLink = false;
QString _dateText;
QString _headerText;
Text _caption;
QRect _captionRect;
uint64 _animStarted;
int _width = 0;
int _x = 0, _y = 0, _w = 0, _h = 0;
int _xStart = 0, _yStart = 0;
int _zoom = 0; // < 0 - out, 0 - none, > 0 - in
float64 _zoomToScreen = 0.; // for documents
QPoint _mStart;
bool _pressed = false;
int32 _dragging = 0;
QPixmap _current;
ClipReader *_gif = nullptr;
int32 _full = -1; // -1 - thumb, 0 - medium, 1 - full
bool fileShown() const;
bool gifShown() const;
void stopGif();
style::sprite _docIcon;
style::color _docIconColor;
QString _docName, _docSize, _docExt;
int _docNameWidth = 0, _docSizeWidth = 0, _docExtWidth = 0;
QRect _docRect, _docIconRect;
int _docThumbx = 0, _docThumby = 0, _docThumbw = 0;
LinkButton _docDownload, _docSaveAs, _docCancel;
QRect _photoRadialRect;
RadialAnimation _radial;
History *_migrated = nullptr;
History *_history = nullptr; // if conversation photos or files overview
PeerData *_peer = nullptr;
UserData *_user = nullptr; // if user profile photos overview
// There can be additional first photo in chat photos overview, that is not
// in the _history->overview[OverviewChatPhotos] (if the item was deleted).
PhotoData *_additionalChatPhoto = nullptr;
// We save the information about the reason of the current mediaview show:
// did we open a peer profile photo or a photo from some message.
// We use it when trying to delete a photo: if we've opened a peer photo,
// then we'll delete group photo instead of the corresponding message.
bool _firstOpenedPeerPhoto = false;
PeerData *_from = nullptr;
Text _fromName;
int _index = -1; // index in photos or files array, -1 if just photo
MsgId _msgid = 0; // msgId of current photo or file
bool _msgmigrated = false; // msgId is from _migrated history
ChannelId _channel = NoChannel;
bool _canForward = false;
bool _canDelete = false;
mtpRequestId _loadRequest = 0;
enum OverState {
OverNone,
OverLeftNav,
OverRightNav,
OverClose,
OverHeader,
OverName,
OverDate,
OverSave,
OverMore,
OverIcon,
};
OverState _over = OverNone;
OverState _down = OverNone;
QPoint _lastAction, _lastMouseMovePos;
bool _ignoringDropdown = false;
Animation _a_state;
enum ControlsState {
ControlsShowing,
ControlsShown,
ControlsHiding,
ControlsHidden,
};
ControlsState _controlsState = ControlsShown;
uint64 _controlsAnimStarted = 0;
QTimer _controlsHideTimer;
anim::fvalue a_cOpacity;
PopupMenu *_menu = nullptr;
Dropdown _dropdown;
IconedButton *_btnSaveCancel, *_btnToMessage, *_btnShowInFolder, *_btnSaveAs, *_btnCopy, *_btnForward, *_btnDelete, *_btnViewAll;
QList<IconedButton*> _btns;
bool _receiveMouse = true;
bool _touchPress = false, _touchMove = false, _touchRightButton = false;
QTimer _touchTimer;
QPoint _touchStart;
QPoint _accumScroll;
QString _saveMsgFilename;
uint64 _saveMsgStarted = 0;
anim::fvalue _saveMsgOpacity = { 0 };
QRect _saveMsg;
QTimer _saveMsgUpdater;
Text _saveMsgText;
typedef QMap<OverState, uint64> Showing;
Showing _animations;
typedef QMap<OverState, anim::fvalue> ShowingOpacities;
ShowingOpacities _animOpacities;
void updateOverRect(OverState state);
bool updateOverState(OverState newState);
float64 overLevel(OverState control);
QColor overColor(const QColor &a, float64 ca, const QColor &b, float64 cb);
};