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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#pragma once
#include "utils_global.h"
#include "completinglineedit.h"
#include <QAbstractButton>
#include <functional>
QT_BEGIN_NAMESPACE
class QEvent;
class QKeySequence;
QT_END_NAMESPACE
namespace Utils {
class FancyLineEditPrivate;
class QTCREATOR_UTILS_EXPORT IconButton: public QAbstractButton
{
Q_OBJECT
Q_PROPERTY(float iconOpacity READ iconOpacity WRITE setIconOpacity)
Q_PROPERTY(bool autoHide READ hasAutoHide WRITE setAutoHide)
public:
explicit IconButton(QWidget *parent = nullptr);
void paintEvent(QPaintEvent *event) override;
float iconOpacity() { return m_iconOpacity; }
void setIconOpacity(float value) { m_iconOpacity = value; update(); }
void animateShow(bool visible);
void setAutoHide(bool hide) { m_autoHide = hide; }
bool hasAutoHide() const { return m_autoHide; }
QSize sizeHint() const override;
protected:
void keyPressEvent(QKeyEvent *ke) override;
void keyReleaseEvent(QKeyEvent *ke) override;
private:
float m_iconOpacity;
bool m_autoHide;
QIcon m_icon;
};
class QTCREATOR_UTILS_EXPORT FancyLineEdit : public CompletingLineEdit
{
Q_OBJECT
public:
enum Side {Left = 0, Right = 1};
Q_ENUM(Side)
explicit FancyLineEdit(QWidget *parent = nullptr);
~FancyLineEdit() override;
void setTextKeepingActiveCursor(const QString &text);
QIcon buttonIcon(Side side) const;
void setButtonIcon(Side side, const QIcon &icon);
QMenu *buttonMenu(Side side) const;
void setButtonMenu(Side side, QMenu *menu);
void setButtonVisible(Side side, bool visible);
bool isButtonVisible(Side side) const;
QAbstractButton *button(Side side) const;
void setButtonToolTip(Side side, const QString &);
void setButtonFocusPolicy(Side side, Qt::FocusPolicy policy);
// Set whether tabbing in will trigger the menu.
void setMenuTabFocusTrigger(Side side, bool v);
bool hasMenuTabFocusTrigger(Side side) const;
// Set if icon should be hidden when text is empty
void setAutoHideButton(Side side, bool h);
bool hasAutoHideButton(Side side) const;
// Completion
// Enable a history completer with a history of entries.
void setHistoryCompleter(const QString &historyKey, bool restoreLastItemFromHistory = false);
// Sets a completer that is not a history completer.
void setSpecialCompleter(QCompleter *completer);
// Filtering
// Enables filtering
void setFiltering(bool on);
// Validation
// line edit, (out)errorMessage -> valid?
using ValidationFunction = std::function<bool(FancyLineEdit *, QString *)>;
enum State { Invalid, DisplayingPlaceholderText, Valid };
State state() const;
bool isValid() const;
QString errorMessage() const;
void setValidationFunction(const ValidationFunction &fn);
static ValidationFunction defaultValidationFunction();
void validate();
void onEditingFinished();
static void setCamelCaseNavigationEnabled(bool enabled);
static void setCompletionShortcut(const QKeySequence &shortcut);
protected:
// Custom behaviour can be added here.
virtual void handleChanged(const QString &) {}
void keyPressEvent(QKeyEvent *event) override;
signals:
void buttonClicked(FancyLineEdit::Side side);
void leftButtonClicked();
void rightButtonClicked();
void filterChanged(const QString &);
void validChanged(bool validState);
void validReturnPressed();
protected:
void resizeEvent(QResizeEvent *e) override;
virtual QString fixInputString(const QString &string);
private:
void iconClicked(FancyLineEdit::Side);
static bool validateWithValidator(FancyLineEdit *edit, QString *errorMessage);
// Unimplemented, to force the user to make a decision on
// whether to use setHistoryCompleter() or setSpecialCompleter().
void setCompleter(QCompleter *);
void updateMargins();
void updateButtonPositions();
bool camelCaseBackward(bool mark);
bool camelCaseForward(bool mark);
friend class FancyLineEditPrivate;
FancyLineEditPrivate *d;
};
} // namespace Utils
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