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/* secqlineedit.cpp - Secure version of QLineEdit.
Copyright (C) 1992-2002 Trolltech AS. All rights reserved.
Copyright (C) 2003 g10 Code GmbH
The license of the original qlineedit.cpp file from which this file
is derived can be found below. Modified by Marcus Brinkmann
<marcus@g10code.de>. All modifications are licensed as follows, so
that the intersection of the two licenses is then the GNU General
Public License version 2.
This program 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 2 of the
License, or (at your option) any later version.
This program 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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA */
/* Undo/Redo is disabled, because it uses unsecure memory for the
history buffer. */
#define SECURE_NO_UNDO 1
/**********************************************************************
** $Id$
**
** Implementation of SecQLineEdit widget class
**
** Created : 941011
**
** Copyright (C) 1992-2002 Trolltech AS. All rights reserved.
**
** This file is part of the widgets module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#include "secqlineedit.h"
#include "qpainter.h"
#include "qdrawutil.h"
#include "qfontmetrics.h"
#include "qpixmap.h"
#include "qclipboard.h"
#include "qapplication.h"
#include "qtimer.h"
#include "qpopupmenu.h"
#include "qstringlist.h"
#include "qguardedptr.h"
#include "qstyle.h"
#include "qwhatsthis.h"
#include "secqinternal_p.h"
#include "private/qtextlayout_p.h"
#include "qvaluevector.h"
#if defined(QT_ACCESSIBILITY_SUPPORT)
#include "qaccessible.h"
#endif
#ifndef QT_NO_ACCEL
#include "qkeysequence.h"
#define ACCEL_KEY(k) "\t" + QString(QKeySequence( Qt::CTRL | Qt::Key_ ## k ))
#else
#define ACCEL_KEY(k) "\t" + QString("Ctrl+" #k)
#endif
#define innerMargin 1
struct SecQLineEditPrivate : public Qt
{
SecQLineEditPrivate( SecQLineEdit *q )
: q(q), cursor(0), cursorTimer(0), tripleClickTimer(0), frame(1),
cursorVisible(0), separator(0), readOnly(0), modified(0),
direction(QChar::DirON), alignment(0),
echoMode(0), textDirty(0), selDirty(0),
ascent(0), maxLength(32767), menuId(0),
hscroll(0),
undoState(0), selstart(0), selend(0),
imstart(0), imend(0), imselstart(0), imselend(0)
{}
void init( const SecQString&);
SecQLineEdit *q;
SecQString text;
int cursor;
int cursorTimer;
QPoint tripleClick;
int tripleClickTimer;
uint frame : 1;
uint cursorVisible : 1;
uint separator : 1;
uint readOnly : 1;
uint modified : 1;
uint direction : 5;
uint alignment : 3;
uint echoMode : 2;
uint textDirty : 1;
uint selDirty : 1;
int ascent;
int maxLength;
int menuId;
int hscroll;
void finishChange( int validateFromState = -1, bool setModified = TRUE );
void setCursorVisible( bool visible );
// undo/redo handling
enum CommandType { Separator, Insert, Remove, Delete, RemoveSelection, DeleteSelection };
struct Command {
inline Command(){}
inline Command( CommandType type, int pos, QChar c )
:type(type),c(c),pos(pos){}
uint type : 4;
QChar c;
int pos;
};
int undoState;
QValueVector<Command> history;
#ifndef SECURE_NO_UNDO
void addCommand( const Command& cmd );
#endif /* SECURE_NO_UNDO */
void insert( const SecQString& s );
void del( bool wasBackspace = FALSE );
void remove( int pos );
inline void separate() { separator = TRUE; }
#ifndef SECURE_NO_UNDO
inline void undo( int until = -1 ) {
if ( !isUndoAvailable() )
return;
deselect();
while ( undoState && undoState > until ) {
Command& cmd = history[--undoState];
switch ( cmd.type ) {
case Insert:
text.remove( cmd.pos, 1);
cursor = cmd.pos;
break;
case Remove:
case RemoveSelection:
text.insert( cmd.pos, cmd.c );
cursor = cmd.pos + 1;
break;
case Delete:
case DeleteSelection:
text.insert( cmd.pos, cmd.c );
cursor = cmd.pos;
break;
case Separator:
continue;
}
if ( until < 0 && undoState ) {
Command& next = history[undoState-1];
if ( next.type != cmd.type && next.type < RemoveSelection
&& !( cmd.type >= RemoveSelection && next.type != Separator ) )
break;
}
}
modified = ( undoState != 0 );
textDirty = TRUE;
}
inline void redo() {
if ( !isRedoAvailable() )
return;
deselect();
while ( undoState < (int)history.size() ) {
Command& cmd = history[undoState++];
switch ( cmd.type ) {
case Insert:
text.insert( cmd.pos, cmd.c );
cursor = cmd.pos + 1;
break;
case Remove:
case Delete:
case RemoveSelection:
case DeleteSelection:
text.remove( cmd.pos, 1 );
cursor = cmd.pos;
break;
case Separator:
continue;
}
if ( undoState < (int)history.size() ) {
Command& next = history[undoState];
if ( next.type != cmd.type && cmd.type < RemoveSelection
&& !( next.type >= RemoveSelection && cmd.type != Separator ) )
break;
}
}
textDirty = TRUE;
}
#endif /* SECURE_NO_UNDO */
inline bool isUndoAvailable() const { return !readOnly && undoState; }
inline bool isRedoAvailable() const { return !readOnly && undoState < (int)history.size(); }
// bidi
inline bool isRightToLeft() const { return direction==QChar::DirON?text.isRightToLeft():(direction==QChar::DirR); }
// selection
int selstart, selend;
inline bool allSelected() const { return !text.isEmpty() && selstart == 0 && selend == (int)text.length(); }
inline bool hasSelectedText() const { return !text.isEmpty() && selend > selstart; }
inline void deselect() { selDirty |= (selend > selstart); selstart = selend = 0; }
void removeSelectedText();
#ifndef QT_NO_CLIPBOARD
void copy( bool clipboard = TRUE ) const;
#endif
inline bool inSelection( int x ) const
{ if ( selstart >= selend ) return FALSE;
int pos = xToPos( x, QTextItem::OnCharacters ); return pos >= selstart && pos < selend; }
// input methods
int imstart, imend, imselstart, imselend;
// complex text layout
QTextLayout textLayout;
void updateTextLayout();
void moveCursor( int pos, bool mark = FALSE );
void setText( const SecQString& txt );
int xToPos( int x, QTextItem::CursorPosition = QTextItem::BetweenCharacters ) const;
inline int visualAlignment() const { return alignment ? alignment : int( isRightToLeft() ? AlignRight : AlignLeft ); }
QRect cursorRect() const;
void updateMicroFocusHint();
};
/*!
\class SecQLineEdit
\brief The SecQLineEdit widget is a one-line text editor.
\ingroup basic
\mainclass
A line edit allows the user to enter and edit a single line of
plain text with a useful collection of editing functions,
including undo and redo, cut and paste,
By changing the echoMode() of a line edit, it can also be used as
a "write-only" field, for inputs such as passwords.
The length of the text can be constrained to maxLength().
A related class is QTextEdit which allows multi-line, rich-text
editing.
You can change the text with setText() or insert(). The text is
retrieved with text(); the displayed text (which may be different,
see \l{EchoMode}) is retrieved with displayText(). Text can be
selected with setSelection() or selectAll(), and the selection can
be cut(), copy()ied and paste()d. The text can be aligned with
setAlignment().
When the text changes the textChanged() signal is emitted; when
the Return or Enter key is pressed the returnPressed() signal is
emitted.
When the text changes the textModified() signal is emitted in all
cases.
By default, SecQLineEdits have a frame as specified by the Windows
and Motif style guides; you can turn it off by calling
setFrame(FALSE).
The default key bindings are described below.
\target desc
\table
\header \i Keypress \i Action
\row \i Left Arrow \i Moves the cursor one character to the left.
\row \i Shift+Left Arrow \i Moves and selects text one character to the left.
\row \i Right Arrow \i Moves the cursor one character to the right.
\row \i Shift+Right Arrow \i Moves and selects text one character to the right.
\row \i Home \i Moves the cursor to the beginning of the line.
\row \i End \i Moves the cursor to the end of the line.
\row \i Backspace \i Deletes the character to the left of the cursor.
\row \i Ctrl+Backspace \i Deletes the word to the left of the cursor.
\row \i Delete \i Deletes the character to the right of the cursor.
\row \i Ctrl+Delete \i Deletes the word to the right of the cursor.
\row \i Ctrl+A \i Moves the cursor to the beginning of the line.
\row \i Ctrl+B \i Moves the cursor one character to the left.
\row \i Ctrl+C \i Copies the selected text to the clipboard.
(Windows also supports Ctrl+Insert for this operation.)
\row \i Ctrl+D \i Deletes the character to the right of the cursor.
\row \i Ctrl+E \i Moves the cursor to the end of the line.
\row \i Ctrl+F \i Moves the cursor one character to the right.
\row \i Ctrl+H \i Deletes the character to the left of the cursor.
\row \i Ctrl+K \i Deletes to the end of the line.
\row \i Ctrl+V \i Pastes the clipboard text into line edit.
(Windows also supports Shift+Insert for this operation.)
\row \i Ctrl+X \i Deletes the selected text and copies it to the clipboard.
(Windows also supports Shift+Delete for this operation.)
\row \i Ctrl+Z \i Undoes the last operation.
\row \i Ctrl+Y \i Redoes the last undone operation.
\endtable
Any other key sequence that represents a valid character, will
cause the character to be inserted into the line edit.
<img src=qlined-m.png> <img src=qlined-w.png>
\sa QTextEdit QLabel QComboBox
\link guibooks.html#fowler GUI Design Handbook: Field, Entry\endlink
*/
/*!
\fn void SecQLineEdit::textChanged( const SecQString& )
This signal is emitted whenever the text changes. The argument is
the new text.
*/
/*!
\fn void SecQLineEdit::selectionChanged()
This signal is emitted whenever the selection changes.
\sa hasSelectedText(), selectedText()
*/
/*!
\fn void SecQLineEdit::lostFocus()
This signal is emitted when the line edit has lost focus.
\sa hasFocus(), QWidget::focusInEvent(), QWidget::focusOutEvent()
*/
/*!
Constructs a line edit with no text.
The maximum text length is set to 32767 characters.
The \a parent and \a name arguments are sent to the QWidget constructor.
\sa setText(), setMaxLength()
*/
SecQLineEdit::SecQLineEdit( QWidget* parent, const char* name )
: QFrame( parent, name, WNoAutoErase ), d(new SecQLineEditPrivate( this ))
{
d->init( SecQString::null );
}
/*!
Constructs a line edit containing the text \a contents.
The cursor position is set to the end of the line and the maximum
text length to 32767 characters.
The \a parent and \a name arguments are sent to the QWidget
constructor.
\sa text(), setMaxLength()
*/
SecQLineEdit::SecQLineEdit( const SecQString& contents, QWidget* parent, const char* name )
: QFrame( parent, name, WNoAutoErase ), d(new SecQLineEditPrivate( this ))
{
d->init( contents );
}
/*!
Destroys the line edit.
*/
SecQLineEdit::~SecQLineEdit()
{
delete d;
}
/*!
\property SecQLineEdit::text
\brief the line edit's text
Setting this property clears the selection, clears the undo/redo
history, moves the cursor to the end of the line and resets the
\c modified property to FALSE.
The text is truncated to maxLength() length.
\sa insert()
*/
SecQString SecQLineEdit::text() const
{
return ( d->text.isNull() ? SecQString ("") : d->text );
}
void SecQLineEdit::setText( const SecQString& text)
{
resetInputContext();
d->setText( text );
d->modified = FALSE;
d->finishChange( -1, FALSE );
}
/*!
\property SecQLineEdit::displayText
\brief the displayed text
If \c EchoMode is \c Normal this returns the same as text(); if
\c EchoMode is \c Password it returns a string of asterisks
text().length() characters long, e.g. "******"; if \c EchoMode is
\c NoEcho returns an empty string, "".
\sa setEchoMode() text() EchoMode
*/
QString SecQLineEdit::displayText() const
{
if ( d->echoMode == NoEcho )
return QString::fromLatin1("");
QChar pwd_char = QChar (style().styleHint( QStyle::SH_LineEdit_PasswordCharacter, this));
QString res;
res.fill (pwd_char, d->text.length ());
return res;
}
/*!
\property SecQLineEdit::maxLength
\brief the maximum permitted length of the text
If the text is too long, it is truncated at the limit.
If truncation occurs any selected text will be unselected, the
cursor position is set to 0 and the first part of the string is
shown.
*/
int SecQLineEdit::maxLength() const
{
return d->maxLength;
}
void SecQLineEdit::setMaxLength( int maxLength )
{
d->maxLength = maxLength;
setText( d->text );
}
/*!
\property SecQLineEdit::frame
\brief whether the line edit draws itself with a frame
If enabled (the default) the line edit draws itself inside a
two-pixel frame, otherwise the line edit draws itself without any
frame.
*/
bool SecQLineEdit::frame() const
{
return frameShape() != NoFrame;
}
void SecQLineEdit::setFrame( bool enable )
{
setFrameStyle( enable ? ( LineEditPanel | Sunken ) : NoFrame );
}
/*!
\enum SecQLineEdit::EchoMode
This enum type describes how a line edit should display its
contents.
\value Normal Display characters as they are entered. This is the
default.
\value NoEcho Do not display anything. This may be appropriate
for passwords where even the length of the
password should be kept secret.
\value Password Display asterisks instead of the characters
actually entered.
\sa setEchoMode() echoMode()
*/
/*!
\property SecQLineEdit::echoMode
\brief the line edit's echo mode
The initial setting is \c Normal, but SecQLineEdit also supports \c
NoEcho and \c Password modes.
The widget's display and the ability to copy the text is affected
by this setting.
\sa EchoMode displayText()
*/
SecQLineEdit::EchoMode SecQLineEdit::echoMode() const
{
return (EchoMode) d->echoMode;
}
void SecQLineEdit::setEchoMode( EchoMode mode )
{
d->echoMode = mode;
d->updateTextLayout();
update();
}
/*!
Returns a recommended size for the widget.
The width returned, in pixels, is usually enough for about 15 to
20 characters.
*/
QSize SecQLineEdit::sizeHint() const
{
constPolish();
QFontMetrics fm( font() );
int h = QMAX(fm.lineSpacing(), 14) + 2*innerMargin;
int w = fm.width( 'x' ) * 17; // "some"
int m = frameWidth() * 2;
return (style().sizeFromContents(QStyle::CT_LineEdit, this,
QSize( w + m, h + m ).
expandedTo(QApplication::globalStrut())));
}
/*!
Returns a minimum size for the line edit.
The width returned is enough for at least one character.
*/
QSize SecQLineEdit::minimumSizeHint() const
{
constPolish();
QFontMetrics fm = fontMetrics();
int h = fm.height() + QMAX( 2*innerMargin, fm.leading() );
int w = fm.maxWidth();
int m = frameWidth() * 2;
return QSize( w + m, h + m );
}
/*!
\property SecQLineEdit::cursorPosition
\brief the current cursor position for this line edit
Setting the cursor position causes a repaint when appropriate.
*/
int SecQLineEdit::cursorPosition() const
{
return d->cursor;
}
void SecQLineEdit::setCursorPosition( int pos )
{
if ( pos <= (int) d->text.length() )
d->moveCursor( pos );
}
/*!
\property SecQLineEdit::alignment
\brief the alignment of the line edit
Possible Values are \c Qt::AlignAuto, \c Qt::AlignLeft, \c
Qt::AlignRight and \c Qt::AlignHCenter.
Attempting to set the alignment to an illegal flag combination
does nothing.
\sa Qt::AlignmentFlags
*/
int SecQLineEdit::alignment() const
{
return d->alignment;
}
void SecQLineEdit::setAlignment( int flag )
{
d->alignment = flag & 0x7;
update();
}
/*!
\obsolete
\fn void SecQLineEdit::cursorRight( bool, int )
Use cursorForward() instead.
\sa cursorForward()
*/
/*!
\obsolete
\fn void SecQLineEdit::cursorLeft( bool, int )
For compatibilty with older applications only. Use cursorBackward()
instead.
\sa cursorBackward()
*/
/*!
Moves the cursor forward \a steps characters. If \a mark is TRUE
each character moved over is added to the selection; if \a mark is
FALSE the selection is cleared.
\sa cursorBackward()
*/
void SecQLineEdit::cursorForward( bool mark, int steps )
{
int cursor = d->cursor;
if ( steps > 0 ) {
while( steps-- )
cursor = d->textLayout.nextCursorPosition( cursor );
} else if ( steps < 0 ) {
while ( steps++ )
cursor = d->textLayout.previousCursorPosition( cursor );
}
d->moveCursor( cursor, mark );
}
/*!
Moves the cursor back \a steps characters. If \a mark is TRUE each
character moved over is added to the selection; if \a mark is
FALSE the selection is cleared.
\sa cursorForward()
*/
void SecQLineEdit::cursorBackward( bool mark, int steps )
{
cursorForward( mark, -steps );
}
/*!
Moves the cursor one word forward. If \a mark is TRUE, the word is
also selected.
\sa cursorWordBackward()
*/
void SecQLineEdit::cursorWordForward( bool mark )
{
d->moveCursor( d->textLayout.nextCursorPosition(d->cursor, QTextLayout::SkipWords), mark );
}
/*!
Moves the cursor one word backward. If \a mark is TRUE, the word
is also selected.
\sa cursorWordForward()
*/
void SecQLineEdit::cursorWordBackward( bool mark )
{
d->moveCursor( d->textLayout.previousCursorPosition(d->cursor, QTextLayout::SkipWords), mark );
}
/*!
If no text is selected, deletes the character to the left of the
text cursor and moves the cursor one position to the left. If any
text is selected, the cursor is moved to the beginning of the
selected text and the selected text is deleted.
\sa del()
*/
void SecQLineEdit::backspace()
{
int priorState = d->undoState;
if ( d->hasSelectedText() ) {
d->removeSelectedText();
} else if ( d->cursor ) {
--d->cursor;
d->del( TRUE );
}
d->finishChange( priorState );
}
/*!
If no text is selected, deletes the character to the right of the
text cursor. If any text is selected, the cursor is moved to the
beginning of the selected text and the selected text is deleted.
\sa backspace()
*/
void SecQLineEdit::del()
{
int priorState = d->undoState;
if ( d->hasSelectedText() ) {
d->removeSelectedText();
} else {
int n = d->textLayout.nextCursorPosition( d->cursor ) - d->cursor;
while ( n-- )
d->del();
}
d->finishChange( priorState );
}
/*!
Moves the text cursor to the beginning of the line unless it is
already there. If \a mark is TRUE, text is selected towards the
first position; otherwise, any selected text is unselected if the
cursor is moved.
\sa end()
*/
void SecQLineEdit::home( bool mark )
{
d->moveCursor( 0, mark );
}
/*!
Moves the text cursor to the end of the line unless it is already
there. If \a mark is TRUE, text is selected towards the last
position; otherwise, any selected text is unselected if the cursor
is moved.
\sa home()
*/
void SecQLineEdit::end( bool mark )
{
d->moveCursor( d->text.length(), mark );
}
/*!
\property SecQLineEdit::modified
\brief whether the line edit's contents has been modified by the user
The modified flag is never read by SecQLineEdit; it has a default value
of FALSE and is changed to TRUE whenever the user changes the line
edit's contents.
This is useful for things that need to provide a default value but
do not start out knowing what the default should be (perhaps it
depends on other fields on the form). Start the line edit without
the best default, and when the default is known, if modified()
returns FALSE (the user hasn't entered any text), insert the
default value.
Calling clearModified() or setText() resets the modified flag to
FALSE.
*/
bool SecQLineEdit::isModified() const
{
return d->modified;
}
/*!
Resets the modified flag to FALSE.
\sa isModified()
*/
void SecQLineEdit::clearModified()
{
d->modified = FALSE;
d->history.clear();
d->undoState = 0;
}
/*!
\obsolete
\property SecQLineEdit::edited
\brief whether the line edit has been edited. Use modified instead.
*/
bool SecQLineEdit::edited() const { return d->modified; }
void SecQLineEdit::setEdited( bool on ) { d->modified = on; }
/*!
\obsolete
\property SecQLineEdit::hasMarkedText
\brief whether part of the text has been selected by the user. Use hasSelectedText instead.
*/
/*!
\property SecQLineEdit::hasSelectedText
\brief whether there is any text selected
hasSelectedText() returns TRUE if some or all of the text has been
selected by the user; otherwise returns FALSE.
\sa selectedText()
*/
bool SecQLineEdit::hasSelectedText() const
{
return d->hasSelectedText();
}
/*!
\obsolete
\property SecQLineEdit::markedText
\brief the text selected by the user. Use selectedText instead.
*/
/*!
\property SecQLineEdit::selectedText
\brief the selected text
If there is no selected text this property's value is
QString::null.
\sa hasSelectedText()
*/
SecQString SecQLineEdit::selectedText() const
{
if ( d->hasSelectedText() )
return d->text.mid( d->selstart, d->selend - d->selstart );
return SecQString::null;
}
/*!
selectionStart() returns the index of the first selected character in the
line edit or -1 if no text is selected.
\sa selectedText()
*/
int SecQLineEdit::selectionStart() const
{
return d->hasSelectedText() ? d->selstart : -1;
}
/*!
Selects text from position \a start and for \a length characters.
\sa deselect() selectAll()
*/
void SecQLineEdit::setSelection( int start, int length )
{
if ( start < 0 || start > (int)d->text.length() || length < 0 ) {
d->selstart = d->selend = 0;
} else {
d->selstart = start;
d->selend = QMIN( start + length, (int)d->text.length() );
d->cursor = d->selend;
}
update();
}
/*!
\property SecQLineEdit::undoAvailable
\brief whether undo is available
*/
bool SecQLineEdit::isUndoAvailable() const
{
return d->isUndoAvailable();
}
/*!
\property SecQLineEdit::redoAvailable
\brief whether redo is available
*/
bool SecQLineEdit::isRedoAvailable() const
{
return d->isRedoAvailable();
}
/*!
Selects all the text (i.e. highlights it) and moves the cursor to
the end. This is useful when a default value has been inserted
because if the user types before clicking on the widget, the
selected text will be deleted.
\sa setSelection() deselect()
*/
void SecQLineEdit::selectAll()
{
d->selstart = d->selend = d->cursor = 0;
d->moveCursor( d->text.length(), TRUE );
}
/*!
Deselects any selected text.
\sa setSelection() selectAll()
*/
void SecQLineEdit::deselect()
{
d->deselect();
d->finishChange();
}
/*!
Deletes any selected text, inserts \a newText and sets it as the
new contents of the line edit.
*/
void SecQLineEdit::insert( const SecQString &newText )
{
// q->resetInputContext(); //#### FIX ME IN QT
int priorState = d->undoState;
d->removeSelectedText();
d->insert( newText );
d->finishChange( priorState );
}
/*!
Clears the contents of the line edit.
*/
void SecQLineEdit::clear()
{
int priorState = d->undoState;
resetInputContext();
d->selstart = 0;
d->selend = d->text.length();
d->removeSelectedText();
d->separate();
d->finishChange( priorState );
}
/*!
Undoes the last operation if undo is \link
SecQLineEdit::undoAvailable available\endlink. Deselects any current
selection, and updates the selection start to the current cursor
position.
*/
void SecQLineEdit::undo()
{
#ifndef SECURE_NO_UNDO
resetInputContext();
d->undo();
d->finishChange( -1, FALSE );
#endif
}
/*!
Redoes the last operation if redo is \link
SecQLineEdit::redoAvailable available\endlink.
*/
void SecQLineEdit::redo()
{
#ifndef SECURE_NO_UNDO
resetInputContext();
d->redo();
d->finishChange();
#endif
}
/*!
\property SecQLineEdit::readOnly
\brief whether the line edit is read only.
In read-only mode, the user can still copy the text to the
clipboard (if echoMode() is \c Normal), but cannot edit it.
SecQLineEdit does not show a cursor in read-only mode.
\sa setEnabled()
*/
bool SecQLineEdit::isReadOnly() const
{
return d->readOnly;
}
void SecQLineEdit::setReadOnly( bool enable )
{
d->readOnly = enable;
#ifndef QT_NO_CURSOR
setCursor( enable ? arrowCursor : ibeamCursor );
#endif
update();
}
#ifndef QT_NO_CLIPBOARD
/*!
Copies the selected text to the clipboard and deletes it, if there
is any, and if echoMode() is \c Normal.
\sa copy() paste() setValidator()
*/
void SecQLineEdit::cut()
{
if ( hasSelectedText() ) {
copy();
del();
}
}
/*!
Copies the selected text to the clipboard, if there is any, and if
echoMode() is \c Normal.
\sa cut() paste()
*/
void SecQLineEdit::copy() const
{
d->copy();
}
/*!
Inserts the clipboard's text at the cursor position, deleting any
selected text, providing the line edit is not \link
SecQLineEdit::readOnly read-only\endlink.
\sa copy() cut()
*/
void SecQLineEdit::paste()
{
d->removeSelectedText();
insert( QApplication::clipboard()->text( QClipboard::Clipboard ) );
}
void SecQLineEditPrivate::copy( bool clipboard ) const
{
#ifndef SECURE
QString t = q->selectedText();
if ( !t.isEmpty() && echoMode == SecQLineEdit::Normal ) {
q->disconnect( QApplication::clipboard(), SIGNAL(selectionChanged()), q, 0);
QApplication::clipboard()->setText( t, clipboard ? QClipboard::Clipboard : QClipboard::Selection );
q->connect( QApplication::clipboard(), SIGNAL(selectionChanged()),
q, SLOT(clipboardChanged()) );
}
#endif
}
#endif // !QT_NO_CLIPBOARD
/*!\reimp
*/
void SecQLineEdit::resizeEvent( QResizeEvent *e )
{
QFrame::resizeEvent( e );
}
/*! \reimp
*/
bool SecQLineEdit::event( QEvent * e )
{
if ( e->type() == QEvent::AccelOverride && !d->readOnly ) {
QKeyEvent* ke = (QKeyEvent*) e;
if ( ke->state() == NoButton || ke->state() == ShiftButton
|| ke->state() == Keypad ) {
if ( ke->key() < Key_Escape ) {
ke->accept();
} else if ( ke->state() == NoButton
|| ke->state() == ShiftButton ) {
switch ( ke->key() ) {
case Key_Delete:
case Key_Home:
case Key_End:
case Key_Backspace:
case Key_Left:
case Key_Right:
ke->accept();
default:
break;
}
}
} else if ( ke->state() & ControlButton ) {
switch ( ke->key() ) {
// Those are too frequently used for application functionality
/* case Key_A:
case Key_B:
case Key_D:
case Key_E:
case Key_F:
case Key_H:
case Key_K:
*/
case Key_C:
case Key_V:
case Key_X:
case Key_Y:
case Key_Z:
case Key_Left:
case Key_Right:
#if defined (Q_WS_WIN)
case Key_Insert:
case Key_Delete:
#endif
ke->accept();
default:
break;
}
}
} else if ( e->type() == QEvent::Timer ) {
// should be timerEvent, is here for binary compatibility
int timerId = ((QTimerEvent*)e)->timerId();
if ( timerId == d->cursorTimer ) {
if(!hasSelectedText() || style().styleHint( QStyle::SH_BlinkCursorWhenTextSelected ))
d->setCursorVisible( !d->cursorVisible );
} else if ( timerId == d->tripleClickTimer ) {
killTimer( d->tripleClickTimer );
d->tripleClickTimer = 0;
}
}
return QWidget::event( e );
}
/*! \reimp
*/
void SecQLineEdit::mousePressEvent( QMouseEvent* e )
{
if ( e->button() == RightButton )
return;
if ( d->tripleClickTimer && ( e->pos() - d->tripleClick ).manhattanLength() <
QApplication::startDragDistance() ) {
selectAll();
return;
}
bool mark = e->state() & ShiftButton;
int cursor = d->xToPos( e->pos().x() );
d->moveCursor( cursor, mark );
}
/*! \reimp
*/
void SecQLineEdit::mouseMoveEvent( QMouseEvent * e )
{
#ifndef QT_NO_CURSOR
if ( ( e->state() & MouseButtonMask ) == 0 ) {
if ( !d->readOnly )
setCursor( ( d->inSelection( e->pos().x() ) ? arrowCursor : ibeamCursor ) );
}
#endif
if ( e->state() & LeftButton ) {
d->moveCursor( d->xToPos( e->pos().x() ), TRUE );
}
}
/*! \reimp
*/
void SecQLineEdit::mouseReleaseEvent( QMouseEvent* e )
{
#ifndef QT_NO_CLIPBOARD
if (QApplication::clipboard()->supportsSelection() ) {
if ( e->button() == LeftButton ) {
d->copy( FALSE );
} else if ( !d->readOnly && e->button() == MidButton ) {
d->deselect();
insert( QApplication::clipboard()->text( QClipboard::Selection ) );
}
}
#endif
}
/*! \reimp
*/
void SecQLineEdit::mouseDoubleClickEvent( QMouseEvent* e )
{
if ( e->button() == Qt::LeftButton ) {
deselect();
d->cursor = d->xToPos( e->pos().x() );
d->cursor = d->textLayout.previousCursorPosition( d->cursor, QTextLayout::SkipWords );
// ## text layout should support end of words.
int end = d->textLayout.nextCursorPosition( d->cursor, QTextLayout::SkipWords );
while ( end > d->cursor && d->text[end-1].isSpace() )
--end;
d->moveCursor( end, TRUE );
d->tripleClickTimer = startTimer( QApplication::doubleClickInterval() );
d->tripleClick = e->pos();
}
}
/*!
\fn void SecQLineEdit::returnPressed()
This signal is emitted when the Return or Enter key is pressed.
*/
/*!
Converts key press event \a e into a line edit action.
If Return or Enter is pressed the signal returnPressed() is
emitted.
The default key bindings are listed in the \link #desc detailed
description.\endlink
*/
void SecQLineEdit::keyPressEvent( QKeyEvent * e )
{
d->setCursorVisible( TRUE );
if ( e->key() == Key_Enter || e->key() == Key_Return ) {
emit returnPressed();
e->ignore();
return;
}
if ( !d->readOnly ) {
QString t = e->text();
if ( !t.isEmpty() && (!e->ascii() || e->ascii()>=32) &&
e->key() != Key_Delete &&
e->key() != Key_Backspace ) {
#ifdef Q_WS_X11
extern bool qt_hebrew_keyboard_hack;
if ( qt_hebrew_keyboard_hack ) {
// the X11 keyboard layout is broken and does not reverse
// braces correctly. This is a hack to get halfway correct
// behaviour
if ( d->isRightToLeft() ) {
QChar *c = (QChar *)t.unicode();
int l = t.length();
while( l-- ) {
if ( c->mirrored() )
*c = c->mirroredChar();
c++;
}
}
}
#endif
insert( t );
return;
}
}
bool unknown = FALSE;
if ( e->state() & ControlButton ) {
switch ( e->key() ) {
case Key_A:
#if defined(Q_WS_X11)
home( e->state() & ShiftButton );
#else
selectAll();
#endif
break;
case Key_B:
cursorForward( e->state() & ShiftButton, -1 );
break;
#ifndef QT_NO_CLIPBOARD
case Key_C:
copy();
break;
#endif
case Key_D:
if ( !d->readOnly ) {
del();
}
break;
case Key_E:
end( e->state() & ShiftButton );
break;
case Key_F:
cursorForward( e->state() & ShiftButton, 1 );
break;
case Key_H:
if ( !d->readOnly ) {
backspace();
}
break;
case Key_K:
if ( !d->readOnly ) {
int priorState = d->undoState;
d->deselect();
while ( d->cursor < (int) d->text.length() )
d->del();
d->finishChange( priorState );
}
break;
#if defined(Q_WS_X11)
case Key_U:
if ( !d->readOnly )
clear();
break;
#endif
#ifndef QT_NO_CLIPBOARD
case Key_V:
if ( !d->readOnly )
paste();
break;
case Key_X:
if ( !d->readOnly && d->hasSelectedText() && echoMode() == Normal ) {
copy();
del();
}
break;
#if defined (Q_WS_WIN)
case Key_Insert:
copy();
break;
#endif
#endif
case Key_Delete:
if ( !d->readOnly ) {
cursorWordForward( TRUE );
del();
}
break;
case Key_Backspace:
if ( !d->readOnly ) {
cursorWordBackward( TRUE );
del();
}
break;
case Key_Right:
case Key_Left:
if ( d->isRightToLeft() == (e->key() == Key_Right) ) {
if ( echoMode() == Normal )
cursorWordBackward( e->state() & ShiftButton );
else
home( e->state() & ShiftButton );
} else {
if ( echoMode() == Normal )
cursorWordForward( e->state() & ShiftButton );
else
end( e->state() & ShiftButton );
}
break;
case Key_Z:
if ( !d->readOnly ) {
if(e->state() & ShiftButton)
redo();
else
undo();
}
break;
case Key_Y:
if ( !d->readOnly )
redo();
break;
default:
unknown = TRUE;
}
} else { // ### check for *no* modifier
switch ( e->key() ) {
case Key_Shift:
// ### TODO
break;
case Key_Left:
case Key_Right: {
int step = (d->isRightToLeft() == (e->key() == Key_Right)) ? -1 : 1;
cursorForward( e->state() & ShiftButton, step );
}
break;
case Key_Backspace:
if ( !d->readOnly ) {
backspace();
}
break;
case Key_Home:
#ifdef Q_WS_MACX
case Key_Up:
#endif
home( e->state() & ShiftButton );
break;
case Key_End:
#ifdef Q_WS_MACX
case Key_Down:
#endif
end( e->state() & ShiftButton );
break;
case Key_Delete:
if ( !d->readOnly ) {
#if defined (Q_WS_WIN)
if ( e->state() & ShiftButton ) {
cut();
break;
}
#endif
del();
}
break;
#if defined (Q_WS_WIN)
case Key_Insert:
if ( !d->readOnly && e->state() & ShiftButton )
paste();
else
unknown = TRUE;
break;
#endif
case Key_F14: // Undo key on Sun keyboards
if ( !d->readOnly )
undo();
break;
#ifndef QT_NO_CLIPBOARD
case Key_F16: // Copy key on Sun keyboards
copy();
break;
case Key_F18: // Paste key on Sun keyboards
if ( !d->readOnly )
paste();
break;
case Key_F20: // Cut key on Sun keyboards
if ( !d->readOnly && hasSelectedText() && echoMode() == Normal ) {
copy();
del();
}
break;
#endif
default:
unknown = TRUE;
}
}
if ( e->key() == Key_Direction_L )
d->direction = QChar::DirL;
else if ( e->key() == Key_Direction_R )
d->direction = QChar::DirR;
if ( unknown )
e->ignore();
}
/*! \reimp
*/
void SecQLineEdit::imStartEvent( QIMEvent *e )
{
if ( d->readOnly ) {
e->ignore();
return;
}
d->removeSelectedText();
d->updateMicroFocusHint();
d->imstart = d->imend = d->imselstart = d->imselend = d->cursor;
}
/*! \reimp
*/
void SecQLineEdit::imComposeEvent( QIMEvent *e )
{
if ( d->readOnly ) {
e->ignore();
} else {
d->text.replace( d->imstart, d->imend - d->imstart, e->text() );
d->imend = d->imstart + e->text().length();
d->imselstart = d->imstart + e->cursorPos();
d->imselend = d->imselstart + e->selectionLength();
d->cursor = e->selectionLength() ? d->imend : d->imselend;
d->updateTextLayout();
update();
}
}
/*! \reimp
*/
void SecQLineEdit::imEndEvent( QIMEvent *e )
{
if ( d->readOnly ) {
e->ignore();
} else {
d->text.remove( d->imstart, d->imend - d->imstart );
d->cursor = d->imselstart = d->imselend = d->imend = d->imstart;
d->textDirty = TRUE;
insert( e->text() );
}
}
/*!\reimp
*/
void SecQLineEdit::focusInEvent( QFocusEvent* e )
{
if ( e->reason() == QFocusEvent::Tab ||
e->reason() == QFocusEvent::Backtab ||
e->reason() == QFocusEvent::Shortcut )
selectAll();
if ( !d->cursorTimer ) {
int cft = QApplication::cursorFlashTime();
d->cursorTimer = cft ? startTimer( cft/2 ) : -1;
}
d->updateMicroFocusHint();
}
/*!\reimp
*/
void SecQLineEdit::focusOutEvent( QFocusEvent* e )
{
if ( e->reason() != QFocusEvent::ActiveWindow &&
e->reason() != QFocusEvent::Popup )
deselect();
d->setCursorVisible( FALSE );
if ( d->cursorTimer > 0 )
killTimer( d->cursorTimer );
d->cursorTimer = 0;
emit lostFocus();
}
/*!\reimp
*/
void SecQLineEdit::drawContents( QPainter *p )
{
const QColorGroup& cg = colorGroup();
QRect cr = contentsRect();
QFontMetrics fm = fontMetrics();
QRect lineRect( cr.x() + innerMargin, cr.y() + (cr.height() - fm.height() + 1) / 2,
cr.width() - 2*innerMargin, fm.height() );
QBrush bg = QBrush( paletteBackgroundColor() );
if ( paletteBackgroundPixmap() )
bg = QBrush( cg.background(), *paletteBackgroundPixmap() );
else if ( !isEnabled() )
bg = cg.brush( QColorGroup::Background );
p->save();
p->setClipRegion( QRegion(cr) - lineRect );
p->fillRect( cr, bg );
p->restore();
SecQSharedDoubleBuffer buffer( p, lineRect.x(), lineRect.y(),
lineRect.width(), lineRect.height(),
hasFocus() ? SecQSharedDoubleBuffer::Force : 0 );
p = buffer.painter();
p->fillRect( lineRect, bg );
// locate cursor position
int cix = 0;
QTextItem ci = d->textLayout.findItem( d->cursor );
if ( ci.isValid() ) {
if ( d->cursor != (int)d->text.length() && d->cursor == ci.from() + ci.length()
&& ci.isRightToLeft() != d->isRightToLeft() )
ci = d->textLayout.findItem( d->cursor + 1 );
cix = ci.x() + ci.cursorToX( d->cursor - ci.from() );
}
// horizontal scrolling
int minLB = QMAX( 0, -fm.minLeftBearing() );
int minRB = QMAX( 0, -fm.minRightBearing() );
int widthUsed = d->textLayout.widthUsed() + 1 + minRB;
if ( (minLB + widthUsed) <= lineRect.width() ) {
switch ( d->visualAlignment() ) {
case AlignRight:
d->hscroll = widthUsed - lineRect.width();
break;
case AlignHCenter:
d->hscroll = ( widthUsed - lineRect.width() ) / 2;
break;
default:
d->hscroll = 0;
break;
}
d->hscroll -= minLB;
} else if ( cix - d->hscroll >= lineRect.width() ) {
d->hscroll = cix - lineRect.width() + 1;
} else if ( cix - d->hscroll < 0 ) {
d->hscroll = cix;
} else if ( widthUsed - d->hscroll < lineRect.width() ) {
d->hscroll = widthUsed - lineRect.width() + 1;
}
// the y offset is there to keep the baseline constant in case we have script changes in the text.
QPoint topLeft = lineRect.topLeft() - QPoint(d->hscroll, d->ascent-fm.ascent());
// draw text, selections and cursors
p->setPen( cg.text() );
bool supressCursor = d->readOnly, hasRightToLeft = d->isRightToLeft();
int textflags = 0;
if ( font().underline() )
textflags |= Qt::Underline;
if ( font().strikeOut() )
textflags |= Qt::StrikeOut;
if ( font().overline() )
textflags |= Qt::Overline;
for ( int i = 0; i < d->textLayout.numItems(); i++ ) {
QTextItem ti = d->textLayout.itemAt( i );
hasRightToLeft |= ti.isRightToLeft();
int tix = topLeft.x() + ti.x();
int first = ti.from();
int last = ti.from() + ti.length() - 1;
// text and selection
if ( d->selstart < d->selend && (last >= d->selstart && first < d->selend ) ) {
QRect highlight = QRect( QPoint( tix + ti.cursorToX( QMAX( d->selstart - first, 0 ) ),
lineRect.top() ),
QPoint( tix + ti.cursorToX( QMIN( d->selend - first, last - first + 1 ) ) - 1,
lineRect.bottom() ) ).normalize();
p->save();
p->setClipRegion( QRegion( lineRect ) - highlight, QPainter::CoordPainter );
p->drawTextItem( topLeft, ti, textflags );
p->setClipRect( lineRect & highlight, QPainter::CoordPainter );
p->fillRect( highlight, cg.highlight() );
p->setPen( cg.highlightedText() );
p->drawTextItem( topLeft, ti, textflags );
p->restore();
} else {
p->drawTextItem( topLeft, ti, textflags );
}
// input method edit area
if ( d->imstart < d->imend && (last >= d->imstart && first < d->imend ) ) {
QRect highlight = QRect( QPoint( tix + ti.cursorToX( QMAX( d->imstart - first, 0 ) ), lineRect.top() ),
QPoint( tix + ti.cursorToX( QMIN( d->imend - first, last - first + 1 ) )-1, lineRect.bottom() ) ).normalize();
p->save();
p->setClipRect( lineRect & highlight, QPainter::CoordPainter );
int h1, s1, v1, h2, s2, v2;
cg.color( QColorGroup::Base ).hsv( &h1, &s1, &v1 );
cg.color( QColorGroup::Background ).hsv( &h2, &s2, &v2 );
QColor imCol;
imCol.setHsv( h1, s1, ( v1 + v2 ) / 2 );
p->fillRect( highlight, imCol );
p->drawTextItem( topLeft, ti, textflags );
p->restore();
}
// input method selection
if ( d->imselstart < d->imselend && (last >= d->imselstart && first < d->imselend ) ) {
QRect highlight = QRect( QPoint( tix + ti.cursorToX( QMAX( d->imselstart - first, 0 ) ), lineRect.top() ),
QPoint( tix + ti.cursorToX( QMIN( d->imselend - first, last - first + 1 ) )-1, lineRect.bottom() ) ).normalize();
p->save();
p->setClipRect( lineRect & highlight, QPainter::CoordPainter );
p->fillRect( highlight, cg.text() );
p->setPen( paletteBackgroundColor() );
p->drawTextItem( topLeft, ti, textflags );
p->restore();
}
}
// draw cursor
if ( d->cursorVisible && !supressCursor ) {
QPoint from( topLeft.x() + cix, lineRect.top() );
QPoint to = from + QPoint( 0, lineRect.height() );
p->drawLine( from, to );
if ( hasRightToLeft ) {
to = from + QPoint( (ci.isRightToLeft()?-2:2), 2 );
p->drawLine( from, to );
from.ry() += 4;
p->drawLine( from, to );
}
}
buffer.end();
}
enum { IdUndo, IdRedo, IdSep1, IdCut, IdCopy, IdPaste, IdClear, IdSep2, IdSelectAll };
/*! \reimp */
void SecQLineEdit::windowActivationChange( bool b )
{
//### remove me with WHighlightSelection attribute
if ( palette().active() != palette().inactive() )
update();
QWidget::windowActivationChange( b );
}
/*! \reimp */
void SecQLineEdit::setPalette( const QPalette & p )
{
//### remove me with WHighlightSelection attribute
QWidget::setPalette( p );
update();
}
/*!
\obsolete
\fn void SecQLineEdit::repaintArea( int from, int to )
Repaints all characters from \a from to \a to. If cursorPos is
between from and to, ensures that cursorPos is visible.
*/
/*! \reimp
*/
void SecQLineEdit::setFont( const QFont & f )
{
QWidget::setFont( f );
d->updateTextLayout();
}
void SecQLineEdit::clipboardChanged()
{
}
void SecQLineEditPrivate::init( const SecQString& txt )
{
#ifndef QT_NO_CURSOR
q->setCursor( readOnly ? arrowCursor : ibeamCursor );
#endif
q->setFocusPolicy( QWidget::StrongFocus );
q->setInputMethodEnabled( TRUE );
// Specifies that this widget can use more, but is able to survive on
// less, horizontal space; and is fixed vertically.
q->setSizePolicy( QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Fixed ) );
q->setBackgroundMode( PaletteBase );
q->setKeyCompression( TRUE );
q->setMouseTracking( TRUE );
q->setAcceptDrops( TRUE );
q->setFrame( TRUE );
text = txt;
updateTextLayout();
cursor = text.length();
}
void SecQLineEditPrivate::updateTextLayout()
{
// replace all non-printable characters with spaces (to avoid
// drawing boxes when using fonts that don't have glyphs for such
// characters)
const QString &displayText = q->displayText();
QString str(displayText.unicode(), displayText.length());
QChar* uc = (QChar*)str.unicode();
for (int i = 0; i < (int)str.length(); ++i) {
if (! uc[i].isPrint())
uc[i] = QChar(0x0020);
}
textLayout.setText( str, q->font() );
// ### want to do textLayout.setRightToLeft( text.isRightToLeft() );
textLayout.beginLayout( QTextLayout::SingleLine );
textLayout.beginLine( INT_MAX );
while ( !textLayout.atEnd() )
textLayout.addCurrentItem();
ascent = 0;
textLayout.endLine(0, 0, Qt::AlignLeft, &ascent);
}
int SecQLineEditPrivate::xToPos( int x, QTextItem::CursorPosition betweenOrOn ) const
{
x-= q->contentsRect().x() - hscroll + innerMargin;
for ( int i = 0; i < textLayout.numItems(); ++i ) {
QTextItem ti = textLayout.itemAt( i );
QRect tir = ti.rect();
if ( x >= tir.left() && x <= tir.right() )
return ti.xToCursor( x - tir.x(), betweenOrOn ) + ti.from();
}
return x < 0 ? 0 : text.length();
}
QRect SecQLineEditPrivate::cursorRect() const
{
QRect cr = q->contentsRect();
int cix = cr.x() - hscroll + innerMargin;
QTextItem ci = textLayout.findItem( cursor );
if ( ci.isValid() ) {
if ( cursor != (int)text.length() && cursor == ci.from() + ci.length()
&& ci.isRightToLeft() != isRightToLeft() )
ci = textLayout.findItem( cursor + 1 );
cix += ci.x() + ci.cursorToX( cursor - ci.from() );
}
int ch = q->fontMetrics().height();
return QRect( cix-4, cr.y() + ( cr.height() - ch + 1) / 2, 8, ch + 1 );
}
void SecQLineEditPrivate::updateMicroFocusHint()
{
if ( q->hasFocus() ) {
QRect r = cursorRect();
q->setMicroFocusHint( r.x(), r.y(), r.width(), r.height() );
}
}
void SecQLineEditPrivate::moveCursor( int pos, bool mark )
{
if ( pos != cursor )
separate();
bool fullUpdate = mark || hasSelectedText();
if ( mark ) {
int anchor;
if ( selend > selstart && cursor == selstart )
anchor = selend;
else if ( selend > selstart && cursor == selend )
anchor = selstart;
else
anchor = cursor;
selstart = QMIN( anchor, pos );
selend = QMAX( anchor, pos );
} else {
selstart = selend = 0;
}
if ( fullUpdate ) {
cursor = pos;
q->update();
} else {
setCursorVisible( FALSE );
cursor = pos;
setCursorVisible( TRUE );
}
updateMicroFocusHint();
if ( mark ) {
if( !q->style().styleHint( QStyle::SH_BlinkCursorWhenTextSelected ))
setCursorVisible( FALSE );
emit q->selectionChanged();
}
}
void SecQLineEditPrivate::finishChange( int validateFromState, bool setModified )
{
bool lineDirty = selDirty;
if ( textDirty ) {
if ( validateFromState >= 0 ) {
#ifndef SECURE_NO_UNDO
undo( validateFromState );
#endif /* SECURE_NO_UNDO */
history.resize( undoState );
textDirty = setModified = FALSE;
}
updateTextLayout();
updateMicroFocusHint();
lineDirty |= textDirty;
if ( setModified )
modified = TRUE;
if ( textDirty ) {
textDirty = FALSE;
emit q->textChanged( text );
}
emit q->textModified( text );
#if defined(QT_ACCESSIBILITY_SUPPORT)
QAccessible::updateAccessibility( q, 0, QAccessible::ValueChanged );
#endif
}
if ( selDirty ) {
selDirty = FALSE;
emit q->selectionChanged();
}
if ( lineDirty || !setModified )
q->update();
}
void SecQLineEditPrivate::setText( const SecQString& txt )
{
deselect();
SecQString oldText = text;
text = txt.isEmpty() ? SecQString ("") : txt.left( maxLength );
history.clear();
undoState = 0;
cursor = text.length();
textDirty = 1; // Err on safe side.
}
void SecQLineEditPrivate::setCursorVisible( bool visible )
{
if ( (bool)cursorVisible == visible )
return;
if ( cursorTimer )
cursorVisible = visible;
QRect r = cursorRect();
if ( !q->contentsRect().contains( r ) )
q->update();
else
q->update( r );
}
#ifndef SECURE_NO_UNDO
void SecQLineEditPrivate::addCommand( const Command& cmd )
{
if ( separator && undoState && history[undoState-1].type != Separator ) {
history.resize( undoState + 2 );
history[undoState++] = Command( Separator, 0, 0 );
} else {
history.resize( undoState + 1);
}
separator = FALSE;
history[ undoState++ ] = cmd;
}
#endif /* SECURE_NO_UNDO */
void SecQLineEditPrivate::insert( const SecQString& s )
{
int remaining = maxLength - text.length();
text.insert( cursor, s.left(remaining) );
for ( int i = 0; i < (int) s.left(remaining).length(); ++i )
{
#ifndef SECURE_NO_UNDO
addCommand( Command( Insert, cursor, s.at(i) ) );
#endif /* SECURE_NO_UNDO */
cursor++;
}
textDirty = TRUE;
}
void SecQLineEditPrivate::del( bool wasBackspace )
{
if ( cursor < (int) text.length() ) {
#ifndef SECURE_NO_UNDO
addCommand ( Command( (CommandType)(wasBackspace?Remove:Delete), cursor, text.at(cursor) ) );
#endif /* SECURE_NO_UNDO */
text.remove( cursor, 1 );
textDirty = TRUE;
}
}
void SecQLineEditPrivate::removeSelectedText()
{
if ( selstart < selend && selend <= (int) text.length() ) {
separate();
#ifndef SECURE_NO_UNDO
int i ;
if ( selstart <= cursor && cursor < selend ) {
// cursor is within the selection. Split up the commands
// to be able to restore the correct cursor position
for ( i = cursor; i >= selstart; --i )
addCommand ( Command( DeleteSelection, i, text.at(i) ) );
for ( i = selend - 1; i > cursor; --i )
addCommand ( Command( DeleteSelection, i - cursor + selstart - 1, text.at(i) ) );
} else {
for ( i = selend-1; i >= selstart; --i )
addCommand ( Command( RemoveSelection, i, text.at(i) ) );
}
#endif /* SECURE_NO_UNDO */
text.remove( selstart, selend - selstart );
if ( cursor > selstart )
cursor -= QMIN( cursor, selend ) - selstart;
deselect();
textDirty = TRUE;
}
}

File Metadata

Mime Type
text/x-c
Expires
Sat, May 10, 8:58 AM (1 d, 5 h)
Storage Engine
local-disk
Storage Format
Raw Data
Storage Handle
47/fc/353c8629d7df4511bbc3efcb3eca

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