lib_ui/ui/widgets/tooltip.h
2021-06-18 16:08:40 +04:00

116 lines
2.6 KiB
C++

// This file is part of Desktop App Toolkit,
// a set of libraries for developing nice desktop applications.
//
// For license and copyright information please follow this link:
// https://github.com/desktop-app/legal/blob/master/LEGAL
//
#pragma once
#include "base/timer.h"
#include "base/object_ptr.h"
#include "ui/effects/animations.h"
#include "ui/text/text.h"
#include "ui/rp_widget.h"
#include "ui/rect_part.h"
namespace style {
struct Tooltip;
struct ImportantTooltip;
} // namespace style
namespace Ui {
class AbstractTooltipShower {
public:
virtual QString tooltipText() const = 0;
virtual QPoint tooltipPos() const = 0;
virtual bool tooltipWindowActive() const = 0;
virtual const style::Tooltip *tooltipSt() const;
virtual ~AbstractTooltipShower();
};
class Tooltip : public RpWidget {
public:
static void Show(int32 delay, const AbstractTooltipShower *shower);
static void Hide();
protected:
void paintEvent(QPaintEvent *e) override;
void hideEvent(QHideEvent *e) override;
bool eventFilter(QObject *o, QEvent *e) override;
private:
void performShow();
Tooltip();
~Tooltip();
void popup(const QPoint &p, const QString &text, const style::Tooltip *st);
friend class AbstractTooltipShower;
const AbstractTooltipShower *_shower = nullptr;
base::Timer _showTimer;
Text::String _text;
QPoint _point;
const style::Tooltip *_st = nullptr;
base::Timer _hideByLeaveTimer;
bool _isEventFilter = false;
bool _useTransparency = true;
};
class ImportantTooltip : public RpWidget {
public:
ImportantTooltip(
QWidget *parent,
object_ptr<RpWidget> content,
const style::ImportantTooltip &st);
void pointAt(
QRect area,
RectParts preferSide = RectPart::Top | RectPart::Left,
Fn<QPoint(QSize)> countPosition = nullptr);
void toggleAnimated(bool visible);
void toggleFast(bool visible);
void hideAfter(crl::time timeout);
void updateGeometry();
void setHiddenCallback(Fn<void()> callback) {
_hiddenCallback = std::move(callback);
}
protected:
void resizeEvent(QResizeEvent *e) override;
void paintEvent(QPaintEvent *e) override;
private:
void animationCallback();
[[nodiscard]] QRect countInner() const;
void countApproachSide(RectParts preferSide);
void resizeToContent();
void checkAnimationFinish();
void refreshAnimationCache();
[[nodiscard]] QPoint countPosition() const;
base::Timer _hideTimer;
const style::ImportantTooltip &_st;
object_ptr<RpWidget> _content;
QRect _area;
RectParts _side = RectPart::Top | RectPart::Left;
QPixmap _arrow;
Ui::Animations::Simple _visibleAnimation;
Fn<QPoint(QSize)> _countPosition;
bool _visible = false;
Fn<void()> _hiddenCallback;
QPixmap _cache;
};
} // namespace Ui