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qwidgetlinecontrol.cpp
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qwidgetlinecontrol.cpp
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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qwidgetlinecontrol_p.h"
#if QT_CONFIG(itemviews)
#include "qabstractitemview.h"
#endif
#include "qclipboard.h"
#include <private/qguiapplication_p.h>
#if QT_CONFIG(completer)
#include <private/qcompleter_p.h>
#endif
#include <qpa/qplatformtheme.h>
#include <qstylehints.h>
#if QT_CONFIG(accessibility)
#include "qaccessible.h"
#endif
#include "qapplication.h"
#include "private/qapplication_p.h"
#if QT_CONFIG(graphicsview)
#include "qgraphicssceneevent.h"
#endif
#include "qvalidator.h"
QT_BEGIN_NAMESPACE
/*!
\internal
Updates the internal text layout. Returns the ascent of the
created QTextLine.
*/
int QWidgetLineControl::redoTextLayout() const
{
m_textLayout.clearLayout();
m_textLayout.beginLayout();
QTextLine l = m_textLayout.createLine();
m_textLayout.endLayout();
return qRound(l.ascent());
}
/*!
\internal
Updates the display text based of the current edit text
If the text has changed will emit displayTextChanged()
*/
void QWidgetLineControl::updateDisplayText(bool forceUpdate)
{
QString orig = m_textLayout.text();
QString str;
if (m_echoMode == QLineEdit::NoEcho)
str = QString::fromLatin1("");
else
str = m_text;
if (m_echoMode == QLineEdit::Password) {
str.fill(m_passwordCharacter);
if (m_passwordEchoTimer != 0 && m_cursor > 0 && m_cursor <= m_text.size()) {
int cursor = m_cursor - 1;
QChar uc = m_text.at(cursor);
str[cursor] = uc;
if (cursor > 0 && uc.isLowSurrogate()) {
// second half of a surrogate, check if we have the first half as well,
// if yes restore both at once
uc = m_text.at(cursor - 1);
if (uc.isHighSurrogate())
str[cursor - 1] = uc;
}
}
} else if (m_echoMode == QLineEdit::PasswordEchoOnEdit && !m_passwordEchoEditing) {
str.fill(m_passwordCharacter);
}
// replace certain non-printable characters with spaces (to avoid
// drawing boxes when using fonts that don't have glyphs for such
// characters)
QChar* uc = str.data();
for (int i = 0; i < (int)str.size(); ++i) {
if ((uc[i].unicode() < 0x20 && uc[i].unicode() != 0x09)
|| uc[i] == QChar::LineSeparator
|| uc[i] == QChar::ParagraphSeparator)
uc[i] = QChar(0x0020);
}
m_textLayout.setText(str);
QTextOption option = m_textLayout.textOption();
option.setTextDirection(m_layoutDirection);
option.setFlags(QTextOption::IncludeTrailingSpaces);
m_textLayout.setTextOption(option);
m_ascent = redoTextLayout();
if (str != orig || forceUpdate)
emit displayTextChanged(str);
}
#ifndef QT_NO_CLIPBOARD
/*!
\internal
Copies the currently selected text into the clipboard using the given
\a mode.
\note If the echo mode is set to a mode other than Normal then copy
will not work. This is to prevent using copy as a method of bypassing
password features of the line control.
*/
void QWidgetLineControl::copy(QClipboard::Mode mode) const
{
QString t = selectedText();
if (!t.isEmpty() && m_echoMode == QLineEdit::Normal) {
QGuiApplication::clipboard()->setText(t, mode);
}
}
/*!
\internal
Inserts the text stored in the application clipboard into the line
control.
\sa insert()
*/
void QWidgetLineControl::paste(QClipboard::Mode clipboardMode)
{
QString clip = QGuiApplication::clipboard()->text(clipboardMode);
if (!clip.isEmpty() || hasSelectedText()) {
separate(); //make it a separate undo/redo command
insert(clip);
separate();
}
}
#endif // !QT_NO_CLIPBOARD
/*!
\internal
*/
void QWidgetLineControl::commitPreedit()
{
#ifndef QT_NO_IM
if (!composeMode())
return;
QGuiApplication::inputMethod()->commit();
if (!composeMode())
return;
m_preeditCursor = 0;
setPreeditArea(-1, QString());
m_textLayout.clearFormats();
updateDisplayText(/*force*/ true);
#endif
}
/*!
\internal
Handles the behavior for the backspace key or function.
Removes the current selection if there is a selection, otherwise
removes the character prior to the cursor position.
\sa del()
*/
void QWidgetLineControl::backspace()
{
int priorState = m_undoState;
if (hasSelectedText()) {
removeSelectedText();
} else if (m_cursor) {
--m_cursor;
if (m_maskData)
m_cursor = prevMaskBlank(m_cursor);
QChar uc = m_text.at(m_cursor);
if (m_cursor > 0 && uc.isLowSurrogate()) {
// second half of a surrogate, check if we have the first half as well,
// if yes delete both at once
uc = m_text.at(m_cursor - 1);
if (uc.isHighSurrogate()) {
internalDelete(true);
--m_cursor;
}
}
internalDelete(true);
}
finishChange(priorState);
}
/*!
\internal
Handles the behavior for the delete key or function.
Removes the current selection if there is a selection, otherwise
removes the character after the cursor position.
\sa del()
*/
void QWidgetLineControl::del()
{
int priorState = m_undoState;
if (hasSelectedText()) {
removeSelectedText();
} else {
int n = textLayout()->nextCursorPosition(m_cursor) - m_cursor;
while (n--)
internalDelete();
}
finishChange(priorState);
}
/*!
\internal
Inserts the given \a newText at the current cursor position.
If there is any selected text it is removed prior to insertion of
the new text.
*/
void QWidgetLineControl::insert(const QString &newText)
{
int priorState = m_undoState;
removeSelectedText();
internalInsert(newText);
finishChange(priorState);
}
/*!
\internal
Clears the line control text.
*/
void QWidgetLineControl::clear()
{
int priorState = m_undoState;
m_selstart = 0;
m_selend = m_text.size();
removeSelectedText();
separate();
finishChange(priorState, /*update*/false, /*edited*/false);
}
/*!
\internal
Undoes the previous operation.
*/
void QWidgetLineControl::undo()
{
// Undo works only for clearing the line when in any of password the modes
if (m_echoMode == QLineEdit::Normal) {
internalUndo();
finishChange(-1, true);
} else {
cancelPasswordEchoTimer();
clear();
}
}
/*!
\internal
Sets \a length characters from the given \a start position as selected.
The given \a start position must be within the current text for
the line control. If \a length characters cannot be selected, then
the selection will extend to the end of the current text.
*/
void QWidgetLineControl::setSelection(int start, int length)
{
commitPreedit();
if (Q_UNLIKELY(start < 0 || start > m_text.size())) {
qWarning("QWidgetLineControl::setSelection: Invalid start position");
return;
}
if (length > 0) {
if (start == m_selstart && start + length == m_selend && m_cursor == m_selend)
return;
m_selstart = start;
m_selend = qMin(start + length, (int)m_text.size());
m_cursor = m_selend;
} else if (length < 0){
if (start == m_selend && start + length == m_selstart && m_cursor == m_selstart)
return;
m_selstart = qMax(start + length, 0);
m_selend = start;
m_cursor = m_selstart;
} else if (m_selstart != m_selend) {
m_selstart = 0;
m_selend = 0;
m_cursor = start;
} else {
m_cursor = start;
emitCursorPositionChanged();
return;
}
emit selectionChanged();
emitCursorPositionChanged();
}
void QWidgetLineControl::_q_deleteSelected()
{
if (!hasSelectedText())
return;
int priorState = m_undoState;
emit resetInputContext();
removeSelectedText();
separate();
finishChange(priorState);
}
/*!
\internal
Initializes the line control with a starting text value of \a txt.
*/
void QWidgetLineControl::init(const QString &txt)
{
m_textLayout.setCacheEnabled(true);
m_text = txt;
updateDisplayText();
m_cursor = m_text.size();
if (const QPlatformTheme *theme = QGuiApplicationPrivate::platformTheme()) {
m_keyboardScheme = theme->themeHint(QPlatformTheme::KeyboardScheme).toInt();
m_passwordMaskDelay = theme->themeHint(QPlatformTheme::PasswordMaskDelay).toInt();
}
// Generalize for X11
if (m_keyboardScheme == QPlatformTheme::KdeKeyboardScheme
|| m_keyboardScheme == QPlatformTheme::GnomeKeyboardScheme
|| m_keyboardScheme == QPlatformTheme::CdeKeyboardScheme) {
m_keyboardScheme = QPlatformTheme::X11KeyboardScheme;
}
}
/*!
\internal
Sets the password echo editing to \a editing. If password echo editing
is true, then the text of the password is displayed even if the echo
mode is set to QLineEdit::PasswordEchoOnEdit. Password echoing editing
does not affect other echo modes.
*/
void QWidgetLineControl::updatePasswordEchoEditing(bool editing)
{
cancelPasswordEchoTimer();
m_passwordEchoEditing = editing;
updateDisplayText();
}
/*!
\internal
Returns the cursor position of the given \a x pixel value in relation
to the displayed text. The given \a betweenOrOn specified what kind
of cursor position is requested.
*/
int QWidgetLineControl::xToPos(int x, QTextLine::CursorPosition betweenOrOn) const
{
return textLayout()->lineAt(0).xToCursor(x, betweenOrOn);
}
/*!
\internal
Returns the bounds of the given text position.
*/
QRect QWidgetLineControl::rectForPos(int pos) const
{
QTextLine l = textLayout()->lineAt(0);
if (m_preeditCursor != -1)
pos += m_preeditCursor;
int cix = qRound(l.cursorToX(pos));
int w = m_cursorWidth;
int ch = l.height() + 1;
return QRect(cix - 5, 0, w + 9, ch);
}
/*!
\internal
Returns the bounds of the current cursor, as defined as a
between characters cursor.
*/
QRect QWidgetLineControl::cursorRect() const
{
return rectForPos(m_cursor);
}
/*!
\internal
Returns the bounds of the current anchor
*/
QRect QWidgetLineControl::anchorRect() const
{
if (!hasSelectedText())
return cursorRect();
return rectForPos(m_cursor == m_selstart ? m_selend : m_selstart);
}
/*!
\internal
Fixes the current text so that it is valid given any set validators.
Returns \c true if the text was changed. Otherwise returns \c false.
*/
bool QWidgetLineControl::fixup() // this function assumes that validate currently returns != Acceptable
{
#ifndef QT_NO_VALIDATOR
if (m_validator) {
QString textCopy = m_text;
int cursorCopy = m_cursor;
m_validator->fixup(textCopy);
if (m_validator->validate(textCopy, cursorCopy) == QValidator::Acceptable) {
if (textCopy != m_text || cursorCopy != m_cursor)
internalSetText(textCopy, cursorCopy, false);
return true;
}
}
#endif
return false;
}
/*!
\internal
Moves the cursor to the given position \a pos. If \a mark is true will
adjust the currently selected text.
*/
void QWidgetLineControl::moveCursor(int pos, bool mark)
{
commitPreedit();
if (pos != m_cursor) {
separate();
if (m_maskData)
pos = pos > m_cursor ? nextMaskBlank(pos) : prevMaskBlank(pos);
}
if (mark) {
int anchor;
if (m_selend > m_selstart && m_cursor == m_selstart)
anchor = m_selend;
else if (m_selend > m_selstart && m_cursor == m_selend)
anchor = m_selstart;
else
anchor = m_cursor;
m_selstart = qMin(anchor, pos);
m_selend = qMax(anchor, pos);
updateDisplayText();
} else {
internalDeselect();
}
m_cursor = pos;
if (mark || m_selDirty) {
m_selDirty = false;
emit selectionChanged();
}
emitCursorPositionChanged();
}
/*!
\internal
Applies the given input method event \a event to the text of the line
control
*/
void QWidgetLineControl::processInputMethodEvent(QInputMethodEvent *event)
{
int priorState = -1;
bool isGettingInput = !event->commitString().isEmpty()
|| event->preeditString() != preeditAreaText()
|| event->replacementLength() > 0;
bool cursorPositionChanged = false;
bool selectionChange = false;
if (isGettingInput) {
// If any text is being input, remove selected text.
priorState = m_undoState;
if (echoMode() == QLineEdit::PasswordEchoOnEdit && !passwordEchoEditing()) {
updatePasswordEchoEditing(true);
m_selstart = 0;
m_selend = m_text.size();
}
removeSelectedText();
}
int c = m_cursor; // cursor position after insertion of commit string
if (event->replacementStart() <= 0)
c += event->commitString().size() - qMin(-event->replacementStart(), event->replacementLength());
m_cursor += event->replacementStart();
if (m_cursor < 0)
m_cursor = 0;
// insert commit string
if (event->replacementLength()) {
m_selstart = m_cursor;
m_selend = m_selstart + event->replacementLength();
removeSelectedText();
}
if (!event->commitString().isEmpty()) {
internalInsert(event->commitString());
cursorPositionChanged = true;
} else {
m_cursor = qBound(0, c, m_text.size());
}
for (int i = 0; i < event->attributes().size(); ++i) {
const QInputMethodEvent::Attribute &a = event->attributes().at(i);
if (a.type == QInputMethodEvent::Selection) {
m_cursor = qBound(0, a.start + a.length, m_text.size());
if (a.length) {
m_selstart = qMax(0, qMin(a.start, m_text.size()));
m_selend = m_cursor;
if (m_selend < m_selstart) {
qSwap(m_selstart, m_selend);
}
selectionChange = true;
} else {
if (m_selstart != m_selend)
selectionChange = true;
m_selstart = m_selend = 0;
}
cursorPositionChanged = true;
}
}
#ifndef QT_NO_IM
// in NoEcho mode, the cursor is always at the beginning of the lineedit
switch (m_echoMode) {
case QLineEdit::NoEcho:
setPreeditArea(0, QString());
break;
case QLineEdit::Password: {
QString preeditString = event->preeditString();
preeditString.fill(m_passwordCharacter);
setPreeditArea(m_cursor, preeditString);
break;
}
default:
setPreeditArea(m_cursor, event->preeditString());
break;
}
#endif //QT_NO_IM
const int oldPreeditCursor = m_preeditCursor;
m_preeditCursor = event->preeditString().size();
m_hideCursor = false;
QList<QTextLayout::FormatRange> formats;
formats.reserve(event->attributes().size());
for (int i = 0; i < event->attributes().size(); ++i) {
const QInputMethodEvent::Attribute &a = event->attributes().at(i);
if (a.type == QInputMethodEvent::Cursor) {
m_preeditCursor = a.start;
m_hideCursor = !a.length;
} else if (a.type == QInputMethodEvent::TextFormat) {
QTextCharFormat f = qvariant_cast<QTextFormat>(a.value).toCharFormat();
if (f.isValid()) {
QTextLayout::FormatRange o;
o.start = a.start + m_cursor;
o.length = a.length;
o.format = f;
formats.append(o);
}
}
}
m_textLayout.setFormats(formats);
updateDisplayText(/*force*/ true);
if (cursorPositionChanged)
emitCursorPositionChanged();
else if (m_preeditCursor != oldPreeditCursor)
emit updateMicroFocus();
if (isGettingInput)
finishChange(priorState);
if (selectionChange)
emit selectionChanged();
}
/*!
\internal
Draws the display text for the line control using the given
\a painter, \a clip, and \a offset. Which aspects of the display text
are drawn is specified by the given \a flags.
If the flags contain DrawSelections, then the selection or input mask
backgrounds and foregrounds will be applied before drawing the text.
If the flags contain DrawCursor a cursor of the current cursorWidth()
will be drawn after drawing the text.
The display text will only be drawn if the flags contain DrawText
*/
void QWidgetLineControl::draw(QPainter *painter, const QPoint &offset, const QRect &clip, int flags)
{
QList<QTextLayout::FormatRange> selections;
if (flags & DrawSelections) {
QTextLayout::FormatRange o;
if (m_selstart < m_selend) {
o.start = m_selstart;
o.length = m_selend - m_selstart;
o.format.setBackground(m_palette.brush(QPalette::Highlight));
o.format.setForeground(m_palette.brush(QPalette::HighlightedText));
} else {
// mask selection
if (m_blinkStatus){
o.start = m_cursor;
o.length = 1;
o.format.setBackground(m_palette.brush(QPalette::Text));
o.format.setForeground(m_palette.brush(QPalette::Window));
}
}
selections.append(o);
}
if (flags & DrawText)
textLayout()->draw(painter, offset, selections, clip);
if (flags & DrawCursor){
int cursor = m_cursor;
if (m_preeditCursor != -1)
cursor += m_preeditCursor;
if (!m_hideCursor && m_blinkStatus)
textLayout()->drawCursor(painter, offset, cursor, m_cursorWidth);
}
}
/*!
\internal
Sets the selection to cover the word at the given cursor position.
The word boundaries are defined by the behavior of QTextLayout::SkipWords
cursor mode.
*/
void QWidgetLineControl::selectWordAtPos(int cursor)
{
int next = cursor + 1;
if (next > end())
--next;
int c = textLayout()->previousCursorPosition(next, QTextLayout::SkipWords);
moveCursor(c, false);
// ## text layout should support end of words.
int end = textLayout()->nextCursorPosition(c, QTextLayout::SkipWords);
while (end > cursor && m_text[end-1].isSpace())
--end;
moveCursor(end, true);
}
/*!
\internal
Completes a change to the line control text. If the change is not valid
will undo the line control state back to the given \a validateFromState.
If \a edited is true and the change is valid, will emit textEdited() in
addition to textChanged(). Otherwise only emits textChanged() on a valid
change.
The \a update value is currently unused.
*/
bool QWidgetLineControl::finishChange(int validateFromState, bool update, bool edited)
{
Q_UNUSED(update);
if (m_textDirty) {
// do validation
bool wasValidInput = m_validInput;
m_validInput = true;
#ifndef QT_NO_VALIDATOR
if (m_validator) {
QString textCopy = m_text;
int cursorCopy = m_cursor;
m_validInput = (m_validator->validate(textCopy, cursorCopy) != QValidator::Invalid);
if (m_validInput) {
if (m_text != textCopy) {
internalSetText(textCopy, cursorCopy, edited);
return true;
}
m_cursor = cursorCopy;
} else {
emit inputRejected();
}
}
#endif
if (validateFromState >= 0 && wasValidInput && !m_validInput) {
if (m_transactions.size())
return false;
internalUndo(validateFromState);
m_history.erase(m_history.begin() + m_undoState, m_history.end());
if (m_modifiedState > m_undoState)
m_modifiedState = -1;
m_validInput = true;
m_textDirty = false;
}
updateDisplayText();
if (m_textDirty) {
m_textDirty = false;
QString actualText = text();
if (edited)
emit textEdited(actualText);
emit textChanged(actualText);
}
}
if (m_selDirty) {
m_selDirty = false;
emit selectionChanged();
}
if (m_cursor == m_lastCursorPos)
emit updateMicroFocus();
emitCursorPositionChanged();
return true;
}
/*!
\internal
An internal function for setting the text of the line control.
*/
void QWidgetLineControl::internalSetText(const QString &txt, int pos, bool edited)
{
cancelPasswordEchoTimer();
internalDeselect();
emit resetInputContext();
QString oldText = m_text;
if (m_maskData) {
m_text = maskString(0, txt, true);
m_text += clearString(m_text.size(), m_maxLength - m_text.size());
if (edited && oldText == m_text)
emit inputRejected();
} else {
m_text = txt.isEmpty() ? txt : txt.left(m_maxLength);
}
m_history.clear();
m_modifiedState = m_undoState = 0;
m_cursor = (pos < 0 || pos > m_text.size()) ? m_text.size() : pos;
m_textDirty = (oldText != m_text);
const bool changed = finishChange(-1, true, edited);
#if QT_CONFIG(accessibility)
if (changed) {
if (oldText.isEmpty()) {
QAccessibleTextInsertEvent event(accessibleObject(), 0, txt);
event.setCursorPosition(m_cursor);
QAccessible::updateAccessibility(&event);
} else if (txt.isEmpty()) {
QAccessibleTextRemoveEvent event(accessibleObject(), 0, oldText);
event.setCursorPosition(m_cursor);
QAccessible::updateAccessibility(&event);
} else {
QAccessibleTextUpdateEvent event(accessibleObject(), 0, oldText, txt);
event.setCursorPosition(m_cursor);
QAccessible::updateAccessibility(&event);
}
}
#else
Q_UNUSED(changed);
#endif
}
/*!
\internal
Adds the given \a command to the undo history
of the line control. Does not apply the command.
*/
void QWidgetLineControl::addCommand(const Command &cmd)
{
m_history.erase(m_history.begin() + m_undoState, m_history.end());
if (m_separator && m_undoState && m_history[m_undoState - 1].type != Separator)
m_history.push_back(Command(Separator, m_cursor, u'\0', m_selstart, m_selend));
m_separator = false;
m_history.push_back(cmd);
m_undoState = int(m_history.size());
}
/*!
\internal
Inserts the given string \a s into the line
control.
Also adds the appropriate commands into the undo history.
This function does not call finishChange(), and may leave the text
in an invalid state.
*/
void QWidgetLineControl::internalInsert(const QString &s)
{
if (m_echoMode == QLineEdit::Password) {
if (m_passwordEchoTimer != 0)
killTimer(m_passwordEchoTimer);
int delay = m_passwordMaskDelay;
#ifdef QT_BUILD_INTERNAL
if (m_passwordMaskDelayOverride >= 0)
delay = m_passwordMaskDelayOverride;
#endif
if (delay > 0)
m_passwordEchoTimer = startTimer(delay);
}
if (hasSelectedText())
addCommand(Command(SetSelection, m_cursor, u'\0', m_selstart, m_selend));
if (m_maskData) {
QString ms = maskString(m_cursor, s);
if (ms.isEmpty() && !s.isEmpty())
emit inputRejected();
#if QT_CONFIG(accessibility)
QAccessibleTextInsertEvent insertEvent(accessibleObject(), m_cursor, ms);
QAccessible::updateAccessibility(&insertEvent);
#endif
for (int i = 0; i < (int) ms.size(); ++i) {
addCommand (Command(DeleteSelection, m_cursor + i, m_text.at(m_cursor + i), -1, -1));
addCommand(Command(Insert, m_cursor + i, ms.at(i), -1, -1));
}
m_text.replace(m_cursor, ms.size(), ms);
m_cursor += ms.size();
m_cursor = nextMaskBlank(m_cursor);
m_textDirty = true;
#if QT_CONFIG(accessibility)
QAccessibleTextCursorEvent event(accessibleObject(), m_cursor);
QAccessible::updateAccessibility(&event);
#endif
} else {
int remaining = m_maxLength - m_text.size();
if (remaining != 0) {
#if QT_CONFIG(accessibility)
QAccessibleTextInsertEvent insertEvent(accessibleObject(), m_cursor, s);
QAccessible::updateAccessibility(&insertEvent);
#endif
m_text.insert(m_cursor, s.left(remaining));
for (int i = 0; i < (int) s.left(remaining).size(); ++i)
addCommand(Command(Insert, m_cursor++, s.at(i), -1, -1));
m_textDirty = true;
}
if (s.size() > remaining)
emit inputRejected();
}
}
/*!
\internal
deletes a single character from the current text. If \a wasBackspace,
the character prior to the cursor is removed. Otherwise the character
after the cursor is removed.
Also adds the appropriate commands into the undo history.
This function does not call finishChange(), and may leave the text
in an invalid state.
*/
void QWidgetLineControl::internalDelete(bool wasBackspace)
{
if (m_cursor < (int) m_text.size()) {
cancelPasswordEchoTimer();
if (hasSelectedText())
addCommand(Command(SetSelection, m_cursor, u'\0', m_selstart, m_selend));
addCommand(Command((CommandType)((m_maskData ? 2 : 0) + (wasBackspace ? Remove : Delete)),
m_cursor, m_text.at(m_cursor), -1, -1));
#if QT_CONFIG(accessibility)
QAccessibleTextRemoveEvent event(accessibleObject(), m_cursor, m_text.at(m_cursor));
QAccessible::updateAccessibility(&event);
#endif
if (m_maskData) {
m_text.replace(m_cursor, 1, clearString(m_cursor, 1));
addCommand(Command(Insert, m_cursor, m_text.at(m_cursor), -1, -1));
} else {
m_text.remove(m_cursor, 1);
}
m_textDirty = true;
}
}
/*!
\internal
removes the currently selected text from the line control.
Also adds the appropriate commands into the undo history.
This function does not call finishChange(), and may leave the text
in an invalid state.
*/
void QWidgetLineControl::removeSelectedText()
{
if (m_selstart < m_selend && m_selend <= (int) m_text.size()) {
cancelPasswordEchoTimer();
separate();
int i ;
addCommand(Command(SetSelection, m_cursor, u'\0', m_selstart, m_selend));
if (m_selstart <= m_cursor && m_cursor < m_selend) {
// cursor is within the selection. Split up the commands
// to be able to restore the correct cursor position
for (i = m_cursor; i >= m_selstart; --i)
addCommand (Command(DeleteSelection, i, m_text.at(i), -1, 1));
for (i = m_selend - 1; i > m_cursor; --i)
addCommand (Command(DeleteSelection, i - m_cursor + m_selstart - 1, m_text.at(i), -1, -1));
} else {
for (i = m_selend-1; i >= m_selstart; --i)
addCommand (Command(RemoveSelection, i, m_text.at(i), -1, -1));
}
#if QT_CONFIG(accessibility)
QAccessibleTextRemoveEvent event(accessibleObject(), m_selstart, m_text.mid(m_selstart, m_selend - m_selstart));
QAccessible::updateAccessibility(&event);
#endif
if (m_maskData) {
m_text.replace(m_selstart, m_selend - m_selstart, clearString(m_selstart, m_selend - m_selstart));
for (int i = 0; i < m_selend - m_selstart; ++i)
addCommand(Command(Insert, m_selstart + i, m_text.at(m_selstart + i), -1, -1));
} else {
m_text.remove(m_selstart, m_selend - m_selstart);
}
if (m_cursor > m_selstart)
m_cursor -= qMin(m_cursor, m_selend) - m_selstart;
internalDeselect();
m_textDirty = true;
}
}
/*!
\internal
Parses the input mask specified by \a maskFields to generate
the mask data used to handle input masks.
*/
void QWidgetLineControl::parseInputMask(const QString &maskFields)
{
qsizetype delimiter = maskFields.indexOf(u';');
if (maskFields.isEmpty() || delimiter == 0) {
if (m_maskData) {
m_maskData.reset();
m_maxLength = 32767;
internalSetText(QString(), -1, false);
}
return;
}
if (delimiter == -1) {
m_blank = u' ';
m_inputMask = maskFields;
} else {
m_inputMask = maskFields.left(delimiter);
m_blank = (delimiter + 1 < maskFields.size()) ? maskFields[delimiter + 1] : u' ';
}
// calculate m_maxLength / m_maskData length
m_maxLength = 0;
bool escaped = false;
for (int i=0; i<m_inputMask.size(); i++) {
const auto c = m_inputMask.at(i);
if (escaped) {
++m_maxLength;
escaped = false;
continue;
}
if (c == u'\\') {
escaped = true;
continue;
}
if (c != u'\\' && c != u'!' && c != u'<' && c != u'>' &&
c != u'{' && c != u'}' && c != u'[' && c != u']')
m_maxLength++;
}
m_maskData = std::make_unique<MaskInputData[]>(m_maxLength);
MaskInputData::Casemode m = MaskInputData::NoCaseMode;
bool s;
bool escape = false;
int index = 0;
for (int i = 0; i < m_inputMask.size(); i++) {
const auto c = m_inputMask.at(i);
if (escape) {
s = true;
m_maskData[index].maskChar = c;
m_maskData[index].separator = s;
m_maskData[index].caseMode = m;
index++;
escape = false;
} else if (c == u'<') {
m = MaskInputData::Lower;
} else if (c == u'>') {
m = MaskInputData::Upper;
} else if (c == u'!') {
m = MaskInputData::NoCaseMode;
} else if (c != u'{' && c != u'}' && c != u'[' && c != u']') {