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**
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**
** This file is part of the QtWidgets module of the Qt Toolkit.
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#ifndef QLINEEDIT_P_H
#define QLINEEDIT_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtWidgets/private/qtwidgetsglobal_p.h>
#include "private/qwidget_p.h"
#include "QtWidgets/qlineedit.h"
#if QT_CONFIG(toolbutton)
#include "QtWidgets/qtoolbutton.h"
#endif
#include "QtGui/qtextlayout.h"
#include "QtGui/qicon.h"
#include "QtWidgets/qstyleoption.h"
#include "QtCore/qbasictimer.h"
#if QT_CONFIG(completer)
#include "QtWidgets/qcompleter.h"
#endif
#include "QtCore/qpointer.h"
#include "QtCore/qmimedata.h"
#include "private/qwidgetlinecontrol_p.h"
#include <algorithm>
QT_REQUIRE_CONFIG(lineedit);
QT_BEGIN_NAMESPACE
class QLineEditPrivate;
// QLineEditIconButton: This is a simple helper class that represents clickable icons that fade in with text
#if QT_CONFIG(toolbutton)
class Q_AUTOTEST_EXPORT QLineEditIconButton : public QToolButton
{
Q_OBJECT
Q_PROPERTY(qreal opacity READ opacity WRITE setOpacity)
public:
explicit QLineEditIconButton(QWidget *parent = 0);
qreal opacity() const { return m_opacity; }
void setOpacity(qreal value);
#ifndef QT_NO_ANIMATION
void animateShow(bool visible) { startOpacityAnimation(visible ? 1.0 : 0.0); }
#endif
protected:
void actionEvent(QActionEvent *e) Q_DECL_OVERRIDE;
void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
private slots:
void updateCursor();
private:
#ifndef QT_NO_ANIMATION
void startOpacityAnimation(qreal endValue);
#endif
QLineEditPrivate *lineEditPrivate() const;
qreal m_opacity;
};
#endif // QT_CONFIG(toolbutton)
class Q_AUTOTEST_EXPORT QLineEditPrivate : public QWidgetPrivate
{
Q_DECLARE_PUBLIC(QLineEdit)
public:
enum SideWidgetFlag {
SideWidgetFadeInWithText = 0x1,
SideWidgetCreatedByWidgetAction = 0x2,
SideWidgetClearButton = 0x4
};
struct SideWidgetEntry {
explicit SideWidgetEntry(QWidget *w = 0, QAction *a = 0, int _flags = 0) : widget(w), action(a), flags(_flags) {}
QWidget *widget;
QAction *action;
int flags;
};
typedef std::vector<SideWidgetEntry> SideWidgetEntryList;
struct SideWidgetParameters {
int iconSize;
int widgetWidth;
int widgetHeight;
int margin;
};
QLineEditPrivate()
: control(0), frame(1), contextMenuEnabled(1), cursorVisible(0),
dragEnabled(0), clickCausedFocus(0), hscroll(0), vscroll(0),
alignment(Qt::AlignLeading | Qt::AlignVCenter),
leftTextMargin(0), topTextMargin(0), rightTextMargin(0), bottomTextMargin(0),
lastTextSize(0)
{
}
~QLineEditPrivate()
{
}
QWidgetLineControl *control;
#ifndef QT_NO_CONTEXTMENU
QPointer<QAction> selectAllAction;
#endif
void init(const QString&);
QRect adjustedControlRect(const QRect &) const;
int xToPos(int x, QTextLine::CursorPosition = QTextLine::CursorBetweenCharacters) const;
bool inSelection(int x) const;
QRect cursorRect() const;
void setCursorVisible(bool visible);
void updatePasswordEchoEditing(bool);
void resetInputMethod();
inline bool shouldEnableInputMethod() const
{
return !control->isReadOnly();
}
inline bool shouldShowPlaceholderText() const
{
return control->text().isEmpty() && control->preeditAreaText().isEmpty()
&& !((alignment & Qt::AlignHCenter) && q_func()->hasFocus());
}
static inline QLineEditPrivate *get(QLineEdit *lineEdit) {
return lineEdit->d_func();
}
QPoint tripleClick;
QBasicTimer tripleClickTimer;
uint frame : 1;
uint contextMenuEnabled : 1;
uint cursorVisible : 1;
uint dragEnabled : 1;
uint clickCausedFocus : 1;
int hscroll;
int vscroll;
uint alignment;
static const int verticalMargin;
static const int horizontalMargin;
bool sendMouseEventToInputContext(QMouseEvent *e);
QRect adjustedContentsRect() const;
void _q_handleWindowActivate();
void _q_textEdited(const QString &);
void _q_cursorPositionChanged(int, int);
#ifdef QT_KEYPAD_NAVIGATION
void _q_editFocusChange(bool);
#endif
void _q_selectionChanged();
void _q_updateNeeded(const QRect &);
#if QT_CONFIG(completer)
void _q_completionHighlighted(const QString &);
#endif
QPoint mousePressPos;
#ifndef QT_NO_DRAGANDDROP
QBasicTimer dndTimer;
void drag();
#endif
void _q_textChanged(const QString &);
void _q_clearButtonClicked();
int leftTextMargin; // use effectiveLeftTextMargin() in case of icon.
int topTextMargin;
int rightTextMargin; // use effectiveRightTextMargin() in case of icon.
int bottomTextMargin;
QString placeholderText;
QWidget *addAction(QAction *newAction, QAction *before, QLineEdit::ActionPosition, int flags = 0);
void removeAction(QAction *action);
SideWidgetParameters sideWidgetParameters() const;
QIcon clearButtonIcon() const;
void setClearButtonEnabled(bool enabled);
void positionSideWidgets();
inline bool hasSideWidgets() const { return !leadingSideWidgets.empty() || !trailingSideWidgets.empty(); }
inline const SideWidgetEntryList &leftSideWidgetList() const
{ return q_func()->layoutDirection() == Qt::LeftToRight ? leadingSideWidgets : trailingSideWidgets; }
inline const SideWidgetEntryList &rightSideWidgetList() const
{ return q_func()->layoutDirection() == Qt::LeftToRight ? trailingSideWidgets : leadingSideWidgets; }
int effectiveLeftTextMargin() const;
int effectiveRightTextMargin() const;
private:
struct SideWidgetLocation {
QLineEdit::ActionPosition position;
int index;
bool isValid() const { return index >= 0; }
};
friend class QTypeInfo<SideWidgetLocation>;
SideWidgetLocation findSideWidget(const QAction *a) const;
SideWidgetEntryList leadingSideWidgets;
SideWidgetEntryList trailingSideWidgets;
int lastTextSize;
};
Q_DECLARE_TYPEINFO(QLineEditPrivate::SideWidgetEntry, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(QLineEditPrivate::SideWidgetLocation, Q_PRIMITIVE_TYPE);
QT_END_NAMESPACE
#endif // QLINEEDIT_P_H