100 lines
2.7 KiB
C++
100 lines
2.7 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "ui/rp_widget.h"
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#include "ui/chat/attach/attach_send_files_way.h"
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namespace Ui {
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struct PreparedFile;
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struct GroupMediaLayout;
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class AlbumThumbnail;
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class AlbumPreview final : public RpWidget {
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public:
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AlbumPreview(
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QWidget *parent,
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gsl::span<Ui::PreparedFile> items,
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SendFilesWay way);
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~AlbumPreview();
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void setSendWay(SendFilesWay way);
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std::vector<int> takeOrder();
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[[nodiscard]] rpl::producer<int> thumbDeleted() const {
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return _thumbDeleted.events();
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}
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[[nodiscard]] rpl::producer<int> thumbChanged() const {
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return _thumbChanged.events();
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}
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protected:
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void paintEvent(QPaintEvent *e) override;
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void mousePressEvent(QMouseEvent *e) override;
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void mouseMoveEvent(QMouseEvent *e) override;
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void mouseReleaseEvent(QMouseEvent *e) override;
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private:
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int countLayoutHeight(
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const std::vector<GroupMediaLayout> &layout) const;
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std::vector<GroupMediaLayout> generateOrderedLayout() const;
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std::vector<int> defaultOrder(int count = -1) const;
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void prepareThumbs(gsl::span<Ui::PreparedFile> items);
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void updateSizeAnimated(const std::vector<GroupMediaLayout> &layout);
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void updateSize();
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void updateFileRows();
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int thumbIndex(AlbumThumbnail *thumb);
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AlbumThumbnail *thumbUnderCursor();
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void deleteThumbByIndex(int index);
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void changeThumbByIndex(int index);
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void thumbButtonsCallback(
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not_null<AlbumThumbnail*> thumb,
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AttachButtonType type);
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void paintAlbum(Painter &p) const;
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void paintPhotos(Painter &p, QRect clip) const;
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void paintFiles(Painter &p, QRect clip) const;
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void applyCursor(style::cursor cursor);
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int contentLeft() const;
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int contentTop() const;
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AlbumThumbnail *findThumb(QPoint position) const;
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not_null<AlbumThumbnail*> findClosestThumb(QPoint position) const;
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void updateSuggestedDrag(QPoint position);
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int orderIndex(not_null<AlbumThumbnail*> thumb) const;
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void cancelDrag();
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void finishDrag();
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SendFilesWay _sendWay;
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style::cursor _cursor = style::cur_default;
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std::vector<int> _order;
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std::vector<QSize> _itemsShownDimensions;
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std::vector<std::unique_ptr<AlbumThumbnail>> _thumbs;
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int _thumbsHeight = 0;
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int _photosHeight = 0;
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int _filesHeight = 0;
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AlbumThumbnail *_draggedThumb = nullptr;
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AlbumThumbnail *_suggestedThumb = nullptr;
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AlbumThumbnail *_paintedAbove = nullptr;
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QPoint _draggedStartPosition;
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rpl::event_stream<int> _thumbDeleted;
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rpl::event_stream<int> _thumbChanged;
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mutable Animations::Simple _thumbsHeightAnimation;
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mutable Animations::Simple _shrinkAnimation;
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mutable Animations::Simple _finishDragAnimation;
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};
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} // namespace Ui
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