tdesktop/Telegram/SourceFiles/boxes/abstract_box.h

258 lines
7.2 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) 2014-2017 John Preston, https://desktop.telegram.org
*/
#pragma once
#include "layerwidget.h"
#include "ui/widgets/shadow.h"
namespace Ui {
class RoundButton;
class IconButton;
class ScrollArea;
template <typename Widget>
class WidgetFadeWrap;
} // namespace Ui
class BoxLayerTitleShadow : public Ui::PlainShadow {
public:
BoxLayerTitleShadow(QWidget *parent);
};
class BoxContentDelegate {
public:
virtual void setLayerType(bool layerType) = 0;
virtual void setTitle(const QString &title, const QString &additional) = 0;
virtual void clearButtons() = 0;
virtual QPointer<Ui::RoundButton> addButton(const QString &text, base::lambda<void()> clickCallback, const style::RoundButton &st) = 0;
virtual QPointer<Ui::RoundButton> addLeftButton(const QString &text, base::lambda<void()> clickCallback, const style::RoundButton &st) = 0;
virtual void updateButtonsPositions() = 0;
virtual void setDimensions(int newWidth, int maxHeight) = 0;
virtual void setNoContentMargin(bool noContentMargin) = 0;
virtual bool isBoxShown() const = 0;
virtual void closeBox() = 0;
};
class BoxContent : public TWidget, protected base::Subscriber {
Q_OBJECT
public:
BoxContent() {
setAttribute(Qt::WA_OpaquePaintEvent);
}
BoxContent(QWidget*) : BoxContent() {
}
bool isBoxShown() const {
return getDelegate()->isBoxShown();
}
void closeBox() {
getDelegate()->closeBox();
}
void setTitle(const QString &title, const QString &additional = QString()) {
getDelegate()->setTitle(title, additional);
}
void clearButtons() {
getDelegate()->clearButtons();
}
QPointer<Ui::RoundButton> addButton(const QString &text, base::lambda<void()> clickCallback);
QPointer<Ui::RoundButton> addLeftButton(const QString &text, base::lambda<void()> clickCallback);
QPointer<Ui::RoundButton> addButton(const QString &text, base::lambda<void()> clickCallback, const style::RoundButton &st) {
return getDelegate()->addButton(text, std::move(clickCallback), st);
}
void updateButtonsGeometry() {
getDelegate()->updateButtonsPositions();
}
virtual void setInnerFocus() {
setFocus();
}
virtual void closeHook() {
}
void setDelegate(BoxContentDelegate *newDelegate) {
_delegate = newDelegate;
prepare();
setInnerFocus();
}
public slots:
void onScrollToY(int top, int bottom = -1);
void onDraggingScrollDelta(int delta);
protected:
virtual void prepare() = 0;
void setLayerType(bool layerType) {
getDelegate()->setLayerType(layerType);
}
void setNoContentMargin(bool noContentMargin) {
if (_noContentMargin != noContentMargin) {
_noContentMargin = noContentMargin;
setAttribute(Qt::WA_OpaquePaintEvent, !_noContentMargin);
}
getDelegate()->setNoContentMargin(noContentMargin);
}
void setDimensions(int newWidth, int maxHeight) {
getDelegate()->setDimensions(newWidth, maxHeight);
}
void setInnerTopSkip(int topSkip, bool scrollBottomFixed = false);
template <typename Widget>
QPointer<Widget> setInnerWidget(object_ptr<Widget> inner, const style::ScrollArea &st, int topSkip = 0) {
auto result = QPointer<Widget>(inner.data());
setInnerTopSkip(topSkip);
setInner(std::move(inner), st);
return result;
}
template <typename Widget>
QPointer<Widget> setInnerWidget(object_ptr<Widget> inner, int topSkip = 0) {
auto result = QPointer<Widget>(inner.data());
setInnerTopSkip(topSkip);
setInner(std::move(inner));
return result;
}
template <typename Widget>
object_ptr<Widget> takeInnerWidget() {
return static_object_cast<Widget>(doTakeInnerWidget());
}
void setInnerVisible(bool scrollAreaVisible);
QPixmap grabInnerCache();
void resizeEvent(QResizeEvent *e) override;
void paintEvent(QPaintEvent *e) override;
private slots:
void onScroll();
void onInnerResize();
void onDraggingScrollTimer();
private:
void setInner(object_ptr<TWidget> inner);
void setInner(object_ptr<TWidget> inner, const style::ScrollArea &st);
void updateScrollAreaGeometry();
void updateInnerVisibleTopBottom();
void updateShadowsVisibility();
object_ptr<TWidget> doTakeInnerWidget();
BoxContentDelegate *getDelegate() const {
t_assert(_delegate != nullptr);
return _delegate;
}
BoxContentDelegate *_delegate = nullptr;
bool _noContentMargin = false;
int _innerTopSkip = 0;
object_ptr<Ui::ScrollArea> _scroll = { nullptr };
object_ptr<Ui::WidgetFadeWrap<BoxLayerTitleShadow>> _topShadow = { nullptr };
object_ptr<Ui::WidgetFadeWrap<BoxLayerTitleShadow>> _bottomShadow = { nullptr };
object_ptr<QTimer> _draggingScrollTimer = { nullptr };
int _draggingScrollDelta = 0;
};
class AbstractBox : public LayerWidget, public BoxContentDelegate, protected base::Subscriber {
public:
AbstractBox(QWidget *parent, object_ptr<BoxContent> content);
void parentResized() override;
void setLayerType(bool layerType) override;
void setTitle(const QString &title, const QString &additional) override;
void clearButtons() override;
QPointer<Ui::RoundButton> addButton(const QString &text, base::lambda<void()> clickCallback, const style::RoundButton &st) override;
QPointer<Ui::RoundButton> addLeftButton(const QString &text, base::lambda<void()> clickCallback, const style::RoundButton &st) override;
void updateButtonsPositions() override;
void setDimensions(int newWidth, int maxHeight) override;
void setNoContentMargin(bool noContentMargin) override {
if (_noContentMargin != noContentMargin) {
_noContentMargin = noContentMargin;
updateSize();
}
}
bool isBoxShown() const override {
return !isHidden();
}
void closeBox() override {
closeLayer();
}
protected:
void keyPressEvent(QKeyEvent *e) override;
void resizeEvent(QResizeEvent *e) override;
void paintEvent(QPaintEvent *e) override;
void doSetInnerFocus() override {
_content->setInnerFocus();
}
void closeHook() override {
_content->closeHook();
}
private:
void paintTitle(Painter &p, const QString &title, const QString &additional = QString());
bool hasTitle() const;
int titleHeight() const;
int buttonsHeight() const;
int buttonsTop() const;
int contentTop() const;
int countFullHeight() const;
int countRealHeight() const;
void updateSize();
int _fullHeight = 0;
bool _noContentMargin = false;
int _maxContentHeight = 0;
object_ptr<BoxContent> _content;
QString _title;
QString _additionalTitle;
bool _layerType = false;
std::vector<object_ptr<Ui::RoundButton>> _buttons;
object_ptr<Ui::RoundButton> _leftButton = { nullptr };
};
enum CreatingGroupType {
CreatingGroupNone,
CreatingGroupGroup,
CreatingGroupChannel,
};