tdesktop/Telegram/SourceFiles/profile/profile_inner_widget.h

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/*
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) 2014-2017 John Preston, https://desktop.telegram.org
*/
#pragma once
namespace Profile {
class CoverWidget;
class BlockWidget;
class SectionMemento;
class InnerWidget final : public TWidget {
Q_OBJECT
public:
InnerWidget(QWidget *parent, PeerData *peer);
PeerData *peer() const {
return _peer;
}
void resizeToWidth(int newWidth, int minHeight) {
_minHeight = minHeight;
return TWidget::resizeToWidth(newWidth);
}
// Updates the area that is visible inside the scroll container.
void setVisibleTopBottom(int visibleTop, int visibleBottom) override;
// Profile fixed top bar should use this flag to decide
// if it shows "Share contact" button or not.
// It should show it only if it is hidden in the cover.
bool shareContactButtonShown() const;
void saveState(SectionMemento *memento) const;
void restoreState(const SectionMemento *memento);
void showFinished();
signals:
void cancelled();
private slots:
void onBlockHeightUpdated();
protected:
void paintEvent(QPaintEvent *e) override;
void keyPressEvent(QKeyEvent *e) override;
// Resizes content and counts natural widget height for the desired width.
int resizeGetHeight(int newWidth) override;
private:
void createBlocks();
// Counts the natural widget height after resizing of child widgets.
int countHeight() const;
enum class Mode {
OneColumn,
TwoColumn,
};
enum class BlockSide {
Left,
Right,
};
int countBlocksLeft(int newWidth) const;
Mode countBlocksMode(int newWidth) const;
int countLeftColumnWidth(int newWidth) const;
int countBlocksHeight(BlockSide countSide) const;
void resizeBlocks(int newWidth);
void refreshBlocksPositions();
// Sometimes height of this widget is larger than it is required
// so that it is allowed to scroll down to the desired position.
// When resizing with scroll moving up the additional height may be decreased.
void decreaseAdditionalHeight(int removeHeight);
PeerData *_peer;
// Height that we added to the natural height so that it is allowed
// to scroll down to the desired position.
int _addedHeight = 0;
int _minHeight = 0;
int _visibleTop = 0;
int _visibleBottom = 0;
object_ptr<CoverWidget> _cover;
int _blocksLeft = 0; // Caching countBlocksLeft() result.
int _blocksTop = 0;
int _columnDivider = 0;
int _leftColumnWidth = 0; // Caching countLeftColumnWidth() result.
struct Block {
BlockWidget *block;
BlockSide side;
};
QList<Block> _blocks;
Mode _mode = Mode::OneColumn;
};
} // namespace Profile