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authorMichele Calgaro <michele.calgaro@yahoo.it>2024-07-29 12:43:23 +0900
committerMichele Calgaro <michele.calgaro@yahoo.it>2024-07-29 12:43:23 +0900
commitfef846914f8db6dc117e206ef913d519bf6bb33e (patch)
treed6567b31f7f22d0c8c66eec947dff1960efa25ac /src/widgets/tqlineedit.cpp
parent8ef4ea451dd81dd66b34ed31aaa631f6df24a192 (diff)
downloadtqt3-fef846914f8db6dc117e206ef913d519bf6bb33e.tar.gz
tqt3-fef846914f8db6dc117e206ef913d519bf6bb33e.zip
Rename basic widget nt* related files to equivalent tq*
Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
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+/**********************************************************************
+**
+** Implementation of TQLineEdit widget class
+**
+** Created : 941011
+**
+** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of the widgets module of the TQt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free TQt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing requirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at sales@trolltech.com.
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
+** included in the packaging of this file. Licensees holding valid TQt
+** Commercial licenses may use this file in accordance with the TQt
+** Commercial License Agreement provided with the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#include "tqlineedit.h"
+#ifndef TQT_NO_LINEEDIT
+
+// Keep this position to avoid patch rejection
+#ifndef TQT_NO_IM
+#include "ntqinputcontext.h"
+#endif
+
+#include "tqpainter.h"
+#include "ntqdrawutil.h"
+#include "tqfontmetrics.h"
+#include "tqpixmap.h"
+#include "tqclipboard.h"
+#include "ntqapplication.h"
+#include "ntqvalidator.h"
+#include "tqdragobject.h"
+#include "tqtimer.h"
+#include "tqpopupmenu.h"
+#include "tqstringlist.h"
+#include "ntqguardedptr.h"
+#include "tqstyle.h"
+#include "tqwhatsthis.h"
+#include "../kernel/qinternal_p.h"
+#include "private/tqtextlayout_p.h"
+#include "tqvaluevector.h"
+#if defined(Q_OS_LINUX)
+#include <sys/mman.h>
+#endif
+#if defined(QT_ACCESSIBILITY_SUPPORT)
+#include "ntqaccessible.h"
+#endif
+
+#ifndef TQT_NO_ACCEL
+#include "ntqkeysequence.h"
+#define ACCEL_KEY(k) "\t" + TQString(TQKeySequence( TQt::CTRL | TQt::Key_ ## k ))
+#else
+#define ACCEL_KEY(k) "\t" + TQString("Ctrl+" #k)
+#endif
+
+#if defined(Q_OS_LINUX)
+#define LINUX_MEMLOCK_LIMIT_BYTES 16384
+#define LINUX_MEMLOCK_LIMIT_CHARACTERS LINUX_MEMLOCK_LIMIT_BYTES/sizeof(TQChar)
+#endif
+
+#define innerMargin 1
+
+struct TQLineEditPrivate : public TQt
+{
+ TQLineEditPrivate( TQLineEdit *q )
+ : q(q), cursor(0), cursorTimer(0), tripleClickTimer(0), frame(1),
+ cursorVisible(0), separator(0), readOnly(0), modified(0),
+ direction(TQChar::DirON), dragEnabled(1), alignment(0),
+ echoMode(0), textDirty(0), selDirty(0), validInput(1),
+ ascent(0), maxLength(32767), menuId(0),
+ hscroll(0), validator(0), maskData(0),
+ undoState(0), selstart(0), selend(0),
+ imstart(0), imend(0), imselstart(0), imselend(0)
+#ifndef TQT_NO_DRAGANDDROP
+ ,dndTimer(0)
+#endif
+ {}
+ void init( const TQString&);
+
+ TQLineEdit *q;
+ TQString text;
+ int cursor;
+ int cursorTimer;
+ TQPoint tripleClick;
+ int tripleClickTimer;
+ uint frame : 1;
+ uint cursorVisible : 1;
+ uint separator : 1;
+ uint readOnly : 1;
+ uint modified : 1;
+ uint direction : 5;
+ uint dragEnabled : 1;
+ uint alignment : 3;
+ uint echoMode : 2;
+ uint textDirty : 1;
+ uint selDirty : 1;
+ uint validInput : 1;
+ int ascent;
+ int maxLength;
+ int menuId;
+ int hscroll;
+ TQChar passwordChar; // obsolete
+
+ void finishChange( int validateFromState = -1, bool setModified = TRUE );
+
+ const TQValidator* validator;
+ struct MaskInputData {
+ enum Casemode { NoCaseMode, Upper, Lower };
+ TQChar maskChar; // either the separator char or the inputmask
+ bool separator;
+ Casemode caseMode;
+ };
+ TQString inputMask;
+ TQChar blank;
+ MaskInputData *maskData;
+ inline int nextMaskBlank( int pos ) {
+ int c = findInMask( pos, TRUE, FALSE );
+ separator |= ( c != pos );
+ return ( c != -1 ? c : maxLength );
+ }
+ inline int prevMaskBlank( int pos ) {
+ int c = findInMask( pos, FALSE, FALSE );
+ separator |= ( c != pos );
+ return ( c != -1 ? c : 0 );
+ }
+
+ 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, TQChar c )
+ :type(type),c(c),pos(pos){}
+ uint type : 4;
+ TQChar c;
+ int pos;
+ };
+ int undoState;
+ TQValueVector<Command> history;
+ void addCommand( const Command& cmd );
+ void insert( const TQString& s );
+ void del( bool wasBackspace = FALSE );
+ void remove( int pos );
+
+ inline void separate() { separator = TRUE; }
+ 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;
+ }
+ inline bool isUndoAvailable() const { return !readOnly && undoState; }
+ inline bool isRedoAvailable() const { return !readOnly && undoState < (int)history.size(); }
+
+ // bidi
+ inline bool isRightToLeft() const { return direction==TQChar::DirON?text.isRightToLeft():(direction==TQChar::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 TQT_NO_CLIPBOARD
+ void copy( bool clipboard = TRUE ) const;
+#endif
+ inline bool inSelection( int x ) const
+ { if ( selstart >= selend ) return FALSE;
+ int pos = xToPos( x, TQTextItem::OnCharacters ); return pos >= selstart && pos < selend; }
+
+ // masking
+ void parseInputMask( const TQString &maskFields );
+ bool isValidInput( TQChar key, TQChar mask ) const;
+ TQString maskString( uint pos, const TQString &str, bool clear = FALSE ) const;
+ TQString clearString( uint pos, uint len ) const;
+ TQString stripString( const TQString &str ) const;
+ int findInMask( int pos, bool forward, bool findSeparator, TQChar searchChar = TQChar() ) const;
+
+ // input methods
+ int imstart, imend, imselstart, imselend;
+ bool composeMode() const { return preeditLength(); }
+ bool hasIMSelection() const { return imSelectionLength(); }
+ int preeditLength() const { return ( imend - imstart ); }
+ int imSelectionLength() const { return ( imselend - imselstart ); }
+
+ // complex text layout
+ TQTextLayout textLayout;
+ void updateTextLayout();
+ void moveCursor( int pos, bool mark = FALSE );
+ void setText( const TQString& txt );
+ int xToPosInternal( int x, TQTextItem::CursorPosition ) const;
+ int xToPos( int x, TQTextItem::CursorPosition = TQTextItem::BetweenCharacters ) const;
+ inline int visualAlignment() const { return alignment ? alignment : int( isRightToLeft() ? AlignRight : AlignLeft ); }
+ TQRect cursorRect() const;
+ void updateMicroFocusHint();
+
+#ifndef TQT_NO_DRAGANDDROP
+ // drag and drop
+ TQPoint dndPos;
+ int dndTimer;
+ bool drag();
+#endif
+};
+
+
+/*!
+ \class TQLineEdit
+ \brief The TQLineEdit 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, and drag and drop.
+
+ 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(). The text
+ can be arbitrarily constrained using a validator() or an
+ inputMask(), or both.
+
+ A related class is TQTextEdit 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. Note that if there is a validator set on the line edit,
+ the returnPressed() signal will only be emitted if the validator
+ returns \c Acceptable.
+
+ By default, TQLineEdits 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. The line edit also
+ provides a context menu (usually invoked by a right mouse click)
+ that presents some of these editing options.
+ \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=tqlined-m.png> <img src=tqlined-w.png>
+
+ \sa TQTextEdit TQLabel TQComboBox
+ \link guibooks.html#fowler GUI Design Handbook: Field, Entry\endlink
+*/
+
+
+/*!
+ \fn void TQLineEdit::textChanged( const TQString& )
+
+ This signal is emitted whenever the text changes. The argument is
+ the new text.
+*/
+
+/*!
+ \fn void TQLineEdit::selectionChanged()
+
+ This signal is emitted whenever the selection changes.
+
+ \sa hasSelectedText(), selectedText()
+*/
+
+/*!
+ \fn void TQLineEdit::lostFocus()
+
+ This signal is emitted when the line edit has lost focus.
+
+ \sa hasFocus(), TQWidget::focusInEvent(), TQWidget::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 TQWidget constructor.
+
+ \sa setText(), setMaxLength()
+*/
+
+TQLineEdit::TQLineEdit( TQWidget* parent, const char* name )
+ : TQFrame( parent, name, WNoAutoErase ), d(new TQLineEditPrivate( this ))
+{
+ d->init( TQString::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 TQWidget
+ constructor.
+
+ \sa text(), setMaxLength()
+*/
+
+TQLineEdit::TQLineEdit( const TQString& contents, TQWidget* parent, const char* name )
+ : TQFrame( parent, name, WNoAutoErase ), d(new TQLineEditPrivate( this ))
+{
+ d->init( contents );
+}
+
+/*!
+ Constructs a line edit with an input \a inputMask and the text \a
+ contents.
+
+ The cursor position is set to the end of the line and the maximum
+ text length is set to the length of the mask (the number of mask
+ characters and separators).
+
+ The \a parent and \a name arguments are sent to the TQWidget
+ constructor.
+
+ \sa setMask() text()
+*/
+TQLineEdit::TQLineEdit( const TQString& contents, const TQString &inputMask, TQWidget* parent, const char* name )
+ : TQFrame( parent, name, WNoAutoErase ), d(new TQLineEditPrivate( this ))
+{
+ d->parseInputMask( inputMask );
+ if ( d->maskData ) {
+ TQString ms = d->maskString( 0, contents );
+ d->init( ms + d->clearString( ms.length(), d->maxLength - ms.length() ) );
+ d->cursor = d->nextMaskBlank( ms.length() );
+ } else {
+ d->init( contents );
+ }
+}
+
+/*!
+ Destroys the line edit.
+*/
+
+TQLineEdit::~TQLineEdit()
+{
+ if ((d->echoMode == NoEcho) || (d->echoMode == Password) || (d->echoMode == PasswordThreeStars)) {
+ d->text.fill(TQChar(0));
+#if defined(Q_OS_LINUX)
+ munlock(d->text.d->unicode, LINUX_MEMLOCK_LIMIT_BYTES);
+#endif
+ }
+ delete [] d->maskData;
+ delete d;
+}
+
+
+/*!
+ \property TQLineEdit::text
+ \brief the line edit's text
+
+ Note that 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 not
+ validated when inserted with setText().
+
+ The text is truncated to maxLength() length.
+
+ \sa insert()
+*/
+TQString TQLineEdit::text() const
+{
+ TQString res = d->text;
+ if ( d->maskData )
+ res = d->stripString( d->text );
+ return ( res.isNull() ? TQString::fromLatin1("") : res );
+}
+
+void TQLineEdit::setText( const TQString& text)
+{
+ resetInputContext();
+ d->setText( text );
+ d->modified = FALSE;
+ d->finishChange( -1, FALSE );
+}
+
+
+/*!
+ \property TQLineEdit::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
+*/
+
+TQString TQLineEdit::displayText() const
+{
+ if ( d->echoMode == NoEcho ) {
+ return TQString::fromLatin1("");
+ }
+ TQString res = d->text;
+ if ( d->echoMode == Password ) {
+ res.fill( passwordChar() );
+ }
+ else if ( d->echoMode == PasswordThreeStars ) {
+ res.fill( passwordChar(), res.length()*3 );
+ }
+ return ( res.isNull() ? TQString::fromLatin1("") : res );
+}
+
+
+/*!
+ \property TQLineEdit::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.
+
+ If the line edit has an input mask, the mask defines the maximum
+ string length.
+
+ \sa inputMask
+*/
+
+int TQLineEdit::maxLength() const
+{
+ return d->maxLength;
+}
+
+void TQLineEdit::setMaxLength( int maxLength )
+{
+ if ( d->maskData )
+ return;
+ d->maxLength = maxLength;
+ setText( d->text );
+}
+
+
+
+/*!
+ \property TQLineEdit::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 TQLineEdit::frame() const
+{
+ return frameShape() != NoFrame;
+}
+
+
+void TQLineEdit::setFrame( bool enable )
+{
+ setFrameStyle( enable ? ( LineEditPanel | Sunken ) : NoFrame );
+}
+
+
+/*!
+ \enum TQLineEdit::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 TQLineEdit::echoMode
+ \brief the line edit's echo mode
+
+ The initial setting is \c Normal, but TQLineEdit also supports \c
+ NoEcho and \c Password modes.
+
+ The widget's display and the ability to copy or drag the text is
+ affected by this setting.
+
+ \sa EchoMode displayText()
+*/
+
+TQLineEdit::EchoMode TQLineEdit::echoMode() const
+{
+ return (EchoMode) d->echoMode;
+}
+
+void TQLineEdit::setEchoMode( EchoMode mode )
+{
+ if (mode == (EchoMode)d->echoMode) {
+ return;
+ }
+#if defined(Q_OS_LINUX)
+ if (((mode == NoEcho) || (mode == Password) || (mode == PasswordThreeStars)) && ((EchoMode)d->echoMode == Normal)) {
+ if ((uint)d->maxLength > (LINUX_MEMLOCK_LIMIT_CHARACTERS-1)) {
+ d->maxLength = LINUX_MEMLOCK_LIMIT_CHARACTERS-1;
+ }
+ d->text.reserve(LINUX_MEMLOCK_LIMIT_CHARACTERS);
+ mlock(d->text.d->unicode, LINUX_MEMLOCK_LIMIT_BYTES);
+ d->text.setSecurityUnPaged(true);
+ }
+ else {
+ d->text.setSecurityUnPaged(false);
+ munlock(d->text.d->unicode, LINUX_MEMLOCK_LIMIT_BYTES);
+ }
+#endif
+ d->echoMode = mode;
+ d->updateTextLayout();
+ setInputMethodEnabled( ( mode == Normal ) || ( mode == Password) );
+ update();
+}
+
+
+
+/*!
+ Returns a pointer to the current input validator, or 0 if no
+ validator has been set.
+
+ \sa setValidator()
+*/
+
+const TQValidator * TQLineEdit::validator() const
+{
+ return d->validator;
+}
+
+/*!
+ Sets this line edit to only accept input that the validator, \a v,
+ will accept. This allows you to place any arbitrary constraints on
+ the text which may be entered.
+
+ If \a v == 0, setValidator() removes the current input validator.
+ The initial setting is to have no input validator (i.e. any input
+ is accepted up to maxLength()).
+
+ \sa validator() TQIntValidator TQDoubleValidator TQRegExpValidator
+*/
+
+void TQLineEdit::setValidator( const TQValidator *v )
+{
+ if ( d->validator )
+ disconnect( (TQObject*)d->validator, TQ_SIGNAL( destroyed() ),
+ this, TQ_SLOT( clearValidator() ) );
+ d->validator = v;
+ if ( d->validator )
+ connect( (TQObject*)d->validator, TQ_SIGNAL( destroyed() ),
+ this, TQ_SLOT( clearValidator() ) );
+}
+
+
+
+/*!
+ Returns a recommended size for the widget.
+
+ The width returned, in pixels, is usually enough for about 15 to
+ 20 characters.
+*/
+
+TQSize TQLineEdit::sizeHint() const
+{
+ constPolish();
+ TQFontMetrics fm( font() );
+ int h = TQMAX(fm.lineSpacing(), 14) + 2*innerMargin;
+ int w = fm.width( 'x' ) * 17; // "some"
+ int m = frameWidth() * 2;
+ return (style().sizeFromContents(TQStyle::CT_LineEdit, this,
+ TQSize( w + m, h + m ).
+ expandedTo(TQApplication::globalStrut())));
+}
+
+
+/*!
+ Returns a minimum size for the line edit.
+
+ The width returned is enough for at least one character.
+*/
+
+TQSize TQLineEdit::minimumSizeHint() const
+{
+ constPolish();
+ TQFontMetrics fm = fontMetrics();
+ int h = fm.height() + TQMAX( 2*innerMargin, fm.leading() );
+ int w = fm.maxWidth();
+ int m = frameWidth() * 2;
+ return TQSize( w + m, h + m );
+}
+
+
+/*!
+ \property TQLineEdit::cursorPosition
+ \brief the current cursor position for this line edit
+
+ Setting the cursor position causes a repaint when appropriate.
+*/
+
+int TQLineEdit::cursorPosition() const
+{
+ return d->cursor;
+}
+
+
+void TQLineEdit::setCursorPosition( int pos )
+{
+ if (pos < 0)
+ pos = 0;
+
+ if ( pos <= (int) d->text.length() )
+ d->moveCursor( pos );
+}
+
+
+/*! \obsolete Use setText(), setCursorPosition() and setSelection() instead.
+*/
+
+bool TQLineEdit::validateAndSet( const TQString &newText, int newPos,
+ int newMarkAnchor, int newMarkDrag )
+{
+ int priorState = d->undoState;
+ d->selstart = 0;
+ d->selend = d->text.length();
+ d->removeSelectedText();
+ d->insert( newText );
+ d->finishChange( priorState );
+ if ( d->undoState > priorState ) {
+ d->cursor = newPos;
+ d->selstart = TQMIN( newMarkAnchor, newMarkDrag );
+ d->selend = TQMAX( newMarkAnchor, newMarkDrag );
+ d->updateMicroFocusHint();
+ update();
+ return TRUE;
+ }
+ return FALSE;
+}
+
+
+/*!
+ \property TQLineEdit::alignment
+ \brief the alignment of the line edit
+
+ Possible Values are \c TQt::AlignAuto, \c TQt::AlignLeft, \c
+ TQt::AlignRight and \c TQt::AlignHCenter.
+
+ Attempting to set the alignment to an illegal flag combination
+ does nothing.
+
+ \sa TQt::AlignmentFlags
+*/
+
+int TQLineEdit::alignment() const
+{
+ return d->alignment;
+}
+
+void TQLineEdit::setAlignment( int flag )
+{
+ d->alignment = flag & 0x7;
+ update();
+}
+
+
+/*!
+ 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 TQLineEdit::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 TQLineEdit::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 TQLineEdit::cursorWordForward( bool mark )
+{
+ d->moveCursor( d->textLayout.nextCursorPosition(d->cursor, TQTextLayout::SkipWords), mark );
+}
+
+/*!
+ Moves the cursor one word backward. If \a mark is TRUE, the word
+ is also selected.
+
+ \sa cursorWordForward()
+*/
+
+void TQLineEdit::cursorWordBackward( bool mark )
+{
+ d->moveCursor( d->textLayout.previousCursorPosition(d->cursor, TQTextLayout::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 TQLineEdit::backspace()
+{
+ int priorState = d->undoState;
+ if ( d->hasSelectedText() ) {
+ d->removeSelectedText();
+ } else if ( d->cursor ) {
+ --d->cursor;
+ if ( d->maskData )
+ d->cursor = d->prevMaskBlank( 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 TQLineEdit::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 TQLineEdit::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 TQLineEdit::end( bool mark )
+{
+ d->moveCursor( d->text.length(), mark );
+}
+
+
+/*!
+ \property TQLineEdit::modified
+ \brief whether the line edit's contents has been modified by the user
+
+ The modified flag is never read by TQLineEdit; 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 TQLineEdit::isModified() const
+{
+ return d->modified;
+}
+
+/*!
+ Resets the modified flag to FALSE.
+
+ \sa isModified()
+*/
+void TQLineEdit::clearModified()
+{
+ d->modified = FALSE;
+ d->history.clear();
+ d->undoState = 0;
+}
+
+/*!
+ \obsolete
+ \property TQLineEdit::edited
+ \brief whether the line edit has been edited. Use modified instead.
+*/
+bool TQLineEdit::edited() const { return d->modified; }
+void TQLineEdit::setEdited( bool on ) { d->modified = on; }
+
+/*!
+ \property TQLineEdit::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 TQLineEdit::hasSelectedText() const
+{
+ return d->hasSelectedText();
+}
+
+/*!
+ \property TQLineEdit::selectedText
+ \brief the selected text
+
+ If there is no selected text this property's value is
+ TQString::null.
+
+ \sa hasSelectedText()
+*/
+
+TQString TQLineEdit::selectedText() const
+{
+ if ( d->hasSelectedText() )
+ return d->text.mid( d->selstart, d->selend - d->selstart );
+ return TQString::null;
+}
+
+/*!
+ selectionStart() returns the index of the first selected character in the
+ line edit or -1 if no text is selected.
+
+ \sa selectedText()
+*/
+
+int TQLineEdit::selectionStart() const
+{
+ return d->hasSelectedText() ? d->selstart : -1;
+}
+
+/*! \obsolete use selectedText(), selectionStart() */
+bool TQLineEdit::getSelection( int *start, int *end )
+{
+ if ( d->hasSelectedText() && start && end ) {
+ *start = d->selstart;
+ *end = d->selend;
+ return TRUE;
+ }
+ return FALSE;
+}
+
+
+/*!
+ Selects text from position \a start and for \a length characters.
+
+ Note that this function sets the cursor's position to the end of
+ the selection regardless of its current position.
+
+ \sa deselect() selectAll() getSelection() cursorForward() cursorBackward()
+*/
+
+void TQLineEdit::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 = TQMIN( start + length, (int)d->text.length() );
+ d->cursor = d->selend;
+ }
+ update();
+}
+
+
+/*!
+ \property TQLineEdit::undoAvailable
+ \brief whether undo is available
+*/
+
+bool TQLineEdit::isUndoAvailable() const
+{
+ return d->isUndoAvailable();
+}
+
+/*!
+ \property TQLineEdit::redoAvailable
+ \brief whether redo is available
+*/
+
+bool TQLineEdit::isRedoAvailable() const
+{
+ return d->isRedoAvailable();
+}
+
+/*!
+ \property TQLineEdit::dragEnabled
+ \brief whether the lineedit starts a drag if the user presses and
+ moves the mouse on some selected text
+*/
+
+bool TQLineEdit::dragEnabled() const
+{
+ return d->dragEnabled;
+}
+
+void TQLineEdit::setDragEnabled( bool b )
+{
+ d->dragEnabled = b;
+}
+
+/*!
+ \property TQLineEdit::acceptableInput
+ \brief whether the input satisfies the inputMask and the
+ validator.
+
+ \sa setInputMask(), setValidator()
+*/
+bool TQLineEdit::hasAcceptableInput() const
+{
+#ifndef TQT_NO_VALIDATOR
+ TQString text = d->text;
+ int cursor = d->cursor;
+ if ( d->validator && d->validator->validate( text, cursor ) != TQValidator::Acceptable )
+ return FALSE;
+#endif
+
+ if ( !d->maskData )
+ return TRUE;
+
+ if ( d->text.length() != (uint)d->maxLength )
+ return FALSE;
+
+ for ( uint i=0; i < (uint)d->maxLength; i++) {
+ if ( d->maskData[i].separator ) {
+ if ( d->text[(int)i] != d->maskData[i].maskChar )
+ return FALSE;
+ } else {
+ if ( !d->isValidInput( d->text[(int)i], d->maskData[i].maskChar ) )
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
+
+
+/*!
+ \property TQLineEdit::inputMask
+ \brief The validation input mask
+
+ If no mask is set, inputMask() returns TQString::null.
+
+ Sets the TQLineEdit's validation mask. Validators can be used
+ instead of, or in conjunction with masks; see setValidator().
+
+ Unset the mask and return to normal TQLineEdit operation by passing
+ an empty string ("") or just calling setInputMask() with no
+ arguments.
+
+ The mask format understands these mask characters:
+ \table
+ \header \i Character \i Meaning
+ \row \i \c A \i ASCII alphabetic character required. A-Z, a-z.
+ \row \i \c a \i ASCII alphabetic character permitted but not required.
+ \row \i \c N \i ASCII alphanumeric character required. A-Z, a-z, 0-9.
+ \row \i \c n \i ASCII alphanumeric character permitted but not required.
+ \row \i \c X \i Any character required.
+ \row \i \c x \i Any character permitted but not required.
+ \row \i \c 9 \i ASCII digit required. 0-9.
+ \row \i \c 0 \i ASCII digit permitted but not required.
+ \row \i \c D \i ASCII digit required. 1-9.
+ \row \i \c d \i ASCII digit permitted but not required (1-9).
+ \row \i \c # \i ASCII digit or plus/minus sign permitted but not required.
+ \row \i \c > \i All following alphabetic characters are uppercased.
+ \row \i \c < \i All following alphabetic characters are lowercased.
+ \row \i \c ! \i Switch off case conversion.
+ \row \i <tt>\\</tt> \i Use <tt>\\</tt> to escape the special
+ characters listed above to use them as
+ separators.
+ \endtable
+
+ The mask consists of a string of mask characters and separators,
+ optionally followed by a semi-colon and the character used for
+ blanks: the blank characters are always removed from the text
+ after editing. The default blank character is space.
+
+ Examples:
+ \table
+ \header \i Mask \i Notes
+ \row \i \c 000.000.000.000;_ \i IP address; blanks are \c{_}.
+ \row \i \c 0000-00-00 \i ISO Date; blanks are \c space
+ \row \i \c >AAAAA-AAAAA-AAAAA-AAAAA-AAAAA;# \i License number;
+ blanks are \c - and all (alphabetic) characters are converted to
+ uppercase.
+ \endtable
+
+ To get range control (e.g. for an IP address) use masks together
+ with \link setValidator() validators\endlink.
+
+ \sa maxLength
+*/
+TQString TQLineEdit::inputMask() const
+{
+ return ( d->maskData ? d->inputMask + ';' + d->blank : TQString::null );
+}
+
+void TQLineEdit::setInputMask( const TQString &inputMask )
+{
+ d->parseInputMask( inputMask );
+ if ( d->maskData )
+ d->moveCursor( d->nextMaskBlank( 0 ) );
+}
+
+/*!
+ 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 TQLineEdit::selectAll()
+{
+ d->selstart = d->selend = d->cursor = 0;
+ d->moveCursor( d->text.length(), TRUE );
+}
+
+/*!
+ Deselects any selected text.
+
+ \sa setSelection() selectAll()
+*/
+
+void TQLineEdit::deselect()
+{
+ d->deselect();
+ d->finishChange();
+}
+
+
+/*!
+ This slot is equivalent to setValidator(0).
+*/
+
+void TQLineEdit::clearValidator()
+{
+ setValidator( 0 );
+}
+
+/*!
+ Deletes any selected text, inserts \a newText, and validates the
+ result. If it is valid, it sets it as the new contents of the line
+ edit.
+*/
+void TQLineEdit::insert( const TQString &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 TQLineEdit::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
+ TQLineEdit::undoAvailable available\endlink. Deselects any current
+ selection, and updates the selection start to the current cursor
+ position.
+*/
+void TQLineEdit::undo()
+{
+ resetInputContext();
+ d->undo();
+ d->finishChange( -1, FALSE );
+}
+
+/*!
+ Redoes the last operation if redo is \link
+ TQLineEdit::redoAvailable available\endlink.
+*/
+void TQLineEdit::redo()
+{
+ resetInputContext();
+ d->redo();
+ d->finishChange();
+}
+
+
+/*!
+ \property TQLineEdit::readOnly
+ \brief whether the line edit is read only.
+
+ In read-only mode, the user can still copy the text to the
+ clipboard or drag-and-drop the text (if echoMode() is \c Normal),
+ but cannot edit it.
+
+ TQLineEdit does not show a cursor in read-only mode.
+
+ \sa setEnabled()
+*/
+
+bool TQLineEdit::isReadOnly() const
+{
+ return d->readOnly;
+}
+
+void TQLineEdit::setReadOnly( bool enable )
+{
+ d->readOnly = enable;
+#ifndef TQT_NO_CURSOR
+ setCursor( enable ? arrowCursor : ibeamCursor );
+#endif
+ update();
+}
+
+
+#ifndef TQT_NO_CLIPBOARD
+/*!
+ Copies the selected text to the clipboard and deletes it, if there
+ is any, and if echoMode() is \c Normal.
+
+ If the current validator disallows deleting the selected text,
+ cut() will copy without deleting.
+
+ \sa copy() paste() setValidator()
+*/
+
+void TQLineEdit::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 TQLineEdit::copy() const
+{
+ d->copy();
+}
+
+/*!
+ Inserts the clipboard's text at the cursor position, deleting any
+ selected text, providing the line edit is not \link
+ TQLineEdit::readOnly read-only\endlink.
+
+ If the end result would not be acceptable to the current
+ \link setValidator() validator\endlink, nothing happens.
+
+ \sa copy() cut()
+*/
+
+void TQLineEdit::paste()
+{
+ insert( TQApplication::clipboard()->text( TQClipboard::Clipboard ) );
+}
+
+void TQLineEditPrivate::copy( bool clipboard ) const
+{
+ TQString t = q->selectedText();
+ if ( !t.isEmpty() && echoMode == TQLineEdit::Normal ) {
+ q->disconnect( TQApplication::clipboard(), TQ_SIGNAL(selectionChanged()), q, 0);
+ TQApplication::clipboard()->setText( t, clipboard ? TQClipboard::Clipboard : TQClipboard::Selection );
+ q->connect( TQApplication::clipboard(), TQ_SIGNAL(selectionChanged()),
+ q, TQ_SLOT(clipboardChanged()) );
+ }
+}
+
+#endif // !TQT_NO_CLIPBOARD
+
+/*!\reimp
+*/
+
+void TQLineEdit::resizeEvent( TQResizeEvent *e )
+{
+ TQFrame::resizeEvent( e );
+}
+
+/*! \reimp
+*/
+bool TQLineEdit::event( TQEvent * e )
+{
+ if ( e->type() == TQEvent::AccelOverride && !d->readOnly ) {
+ TQKeyEvent* ke = (TQKeyEvent*) e;
+ if ( ke->state() == NoButton || ke->state() == ShiftButton
+ || ke->state() == Keypad ) {
+ if ( ke->key() < Key_Escape ) {
+ ke->accept();
+ } else {
+ 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 (TQ_WS_WIN)
+ case Key_Insert:
+ case Key_Delete:
+#endif
+ ke->accept();
+ default:
+ break;
+ }
+ }
+ } else if ( e->type() == TQEvent::Timer ) {
+ // should be timerEvent, is here for binary compatibility
+ int timerId = ((TQTimerEvent*)e)->timerId();
+ if ( timerId == d->cursorTimer ) {
+ if(!hasSelectedText() || style().styleHint( TQStyle::SH_BlinkCursorWhenTextSelected ))
+ d->setCursorVisible( !d->cursorVisible );
+#ifndef TQT_NO_DRAGANDDROP
+ } else if ( timerId == d->dndTimer ) {
+ if( !d->drag() )
+ return TRUE;
+#endif
+ } else if ( timerId == d->tripleClickTimer ) {
+ killTimer( d->tripleClickTimer );
+ d->tripleClickTimer = 0;
+ }
+ }
+ return TQWidget::event( e );
+}
+
+/*! \reimp
+*/
+void TQLineEdit::mousePressEvent( TQMouseEvent* e )
+{
+ if ( sendMouseEventToInputContext( e ) )
+ return;
+ if ( e->button() == RightButton )
+ return;
+ if ( d->tripleClickTimer && ( e->pos() - d->tripleClick ).manhattanLength() <
+ TQApplication::startDragDistance() ) {
+ selectAll();
+ return;
+ }
+ bool mark = e->state() & ShiftButton;
+ int cursor = d->xToPos( e->pos().x() );
+#ifndef TQT_NO_DRAGANDDROP
+ if ( !mark && d->dragEnabled && d->echoMode == Normal &&
+ e->button() == LeftButton && d->inSelection( e->pos().x() ) ) {
+ d->cursor = cursor;
+ d->updateMicroFocusHint();
+ update();
+ d->dndPos = e->pos();
+ if ( !d->dndTimer )
+ d->dndTimer = startTimer( TQApplication::startDragTime() );
+ } else
+#endif
+ {
+ d->moveCursor( cursor, mark );
+ }
+}
+
+/*! \reimp
+*/
+void TQLineEdit::mouseMoveEvent( TQMouseEvent * e )
+{
+ if ( sendMouseEventToInputContext( e ) )
+ return;
+#ifndef TQT_NO_CURSOR
+ if ( ( e->state() & MouseButtonMask ) == 0 ) {
+ if ( !d->readOnly && d->dragEnabled
+#ifndef TQT_NO_WHATSTHIS
+ && !TQWhatsThis::inWhatsThisMode()
+#endif
+ )
+ setCursor( ( d->inSelection( e->pos().x() ) ? arrowCursor : ibeamCursor ) );
+ }
+#endif
+
+ if ( e->state() & LeftButton ) {
+#ifndef TQT_NO_DRAGANDDROP
+ if ( d->dndTimer ) {
+ if ( ( d->dndPos - e->pos() ).manhattanLength() > TQApplication::startDragDistance() )
+ d->drag();
+ } else
+#endif
+ {
+ d->moveCursor( d->xToPos( e->pos().x() ), TRUE );
+ }
+ }
+}
+
+/*! \reimp
+*/
+void TQLineEdit::mouseReleaseEvent( TQMouseEvent* e )
+{
+ if ( sendMouseEventToInputContext( e ) )
+ return;
+#ifndef TQT_NO_DRAGANDDROP
+ if ( e->button() == LeftButton ) {
+ if ( d->dndTimer ) {
+ killTimer( d->dndTimer );
+ d->dndTimer = 0;
+ deselect();
+ return;
+ }
+ }
+#endif
+#ifndef TQT_NO_CLIPBOARD
+ if (TQApplication::clipboard()->supportsSelection() ) {
+ if ( e->button() == LeftButton ) {
+ d->copy( FALSE );
+ } else if ( !d->readOnly && e->button() == MidButton ) {
+ d->deselect();
+ insert( TQApplication::clipboard()->text( TQClipboard::Selection ) );
+ }
+ }
+#endif
+}
+
+/*! \reimp
+*/
+void TQLineEdit::mouseDoubleClickEvent( TQMouseEvent* e )
+{
+ if ( sendMouseEventToInputContext( e ) )
+ return;
+ if ( e->button() == TQt::LeftButton ) {
+ deselect();
+ d->cursor = d->xToPos( e->pos().x() );
+ d->cursor = d->textLayout.previousCursorPosition( d->cursor, TQTextLayout::SkipWords );
+ // ## text layout should support end of words.
+ int end = d->textLayout.nextCursorPosition( d->cursor, TQTextLayout::SkipWords );
+ while ( end > d->cursor && d->text[end-1].isSpace() )
+ --end;
+ d->moveCursor( end, TRUE );
+ d->tripleClickTimer = startTimer( TQApplication::doubleClickInterval() );
+ d->tripleClick = e->pos();
+ }
+}
+
+/*!
+ \fn void TQLineEdit::returnPressed()
+
+ This signal is emitted when the Return or Enter key is pressed.
+ Note that if there is a validator() or inputMask() set on the line
+ edit, the returnPressed() signal will only be emitted if the input
+ follows the inputMask() and the validator() returns \c Acceptable.
+*/
+
+/*!
+ Converts key press event \a e into a line edit action.
+
+ If Return or Enter is pressed and the current text is valid (or
+ can be \link TQValidator::fixup() made valid\endlink by the
+ validator), the signal returnPressed() is emitted.
+
+ The default key bindings are listed in the \link #desc detailed
+ description.\endlink
+*/
+
+void TQLineEdit::keyPressEvent( TQKeyEvent * e )
+{
+ d->setCursorVisible( TRUE );
+ if ( e->key() == Key_Enter || e->key() == Key_Return ) {
+ const TQValidator * v = d->validator;
+ if ( hasAcceptableInput() ) {
+ emit returnPressed();
+ }
+#ifndef TQT_NO_VALIDATOR
+ else if ( v && v->validate( d->text, d->cursor ) != TQValidator::Acceptable ) {
+ TQString vstr = d->text;
+ v->fixup( vstr );
+ if ( vstr != d->text ) {
+ setText( vstr );
+ if ( hasAcceptableInput() )
+ emit returnPressed();
+ }
+ }
+#endif
+ e->ignore();
+ return;
+ }
+ if ( !d->readOnly ) {
+ TQString t = e->text();
+ if ( !t.isEmpty() && (!e->ascii() || e->ascii()>=32) &&
+ e->key() != Key_Delete &&
+ e->key() != Key_Backspace ) {
+#ifdef TQ_WS_X11
+ extern bool tqt_hebrew_keyboard_hack;
+ if ( tqt_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() ) {
+ TQChar *c = (TQChar *)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(TQ_WS_X11)
+ home( e->state() & ShiftButton );
+#else
+ selectAll();
+#endif
+ break;
+ case Key_B:
+ cursorForward( e->state() & ShiftButton, -1 );
+ break;
+#ifndef TQT_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(TQ_WS_X11)
+ case Key_U:
+ if ( !d->readOnly )
+ clear();
+ break;
+#endif
+#ifndef TQT_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 (TQ_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 ) || ( echoMode() == Password ))
+ cursorWordBackward( e->state() & ShiftButton );
+ else
+ home( e->state() & ShiftButton );
+ } else {
+ if (( echoMode() == Normal ) || ( echoMode() == Password ))
+ 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 TQ_WS_MACX
+ case Key_Up:
+#endif
+ home( e->state() & ShiftButton );
+ break;
+ case Key_End:
+#ifdef TQ_WS_MACX
+ case Key_Down:
+#endif
+ end( e->state() & ShiftButton );
+ break;
+ case Key_Delete:
+ if ( !d->readOnly ) {
+#if defined (TQ_WS_WIN)
+ if ( e->state() & ShiftButton ) {
+ cut();
+ break;
+ }
+#endif
+ del();
+ }
+ break;
+#if defined (TQ_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 TQT_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 || e->key() == Key_Direction_R ) {
+ d->direction = (e->key() == Key_Direction_L) ? TQChar::DirL : TQChar::DirR;
+ d->updateTextLayout();
+ update();
+ }
+
+ if ( unknown )
+ e->ignore();
+}
+
+
+/*!
+ This function is not intended as polymorphic usage. Just a shared code
+ fragment that calls TQWidget::sendMouseEventToInputContext() easily for this
+ class.
+ */
+bool TQLineEdit::sendMouseEventToInputContext( TQMouseEvent *e )
+{
+#ifndef TQT_NO_IM
+ if ( d->composeMode() ) {
+ int cursor = d->xToPosInternal( e->pos().x(), TQTextItem::OnCharacters );
+ int mousePos = cursor - d->imstart;
+ if ( mousePos >= 0 && mousePos < d->preeditLength() ) {
+ TQWidget::sendMouseEventToInputContext( mousePos, e->type(),
+ e->button(), e->state() );
+ } else if ( e->type() != TQEvent::MouseMove ) {
+ // send button events on out of preedit
+ TQWidget::sendMouseEventToInputContext( -1, e->type(),
+ e->button(), e->state() );
+ }
+ return TRUE;
+ }
+#endif
+ return FALSE;
+}
+
+
+/*! \reimp
+ */
+void TQLineEdit::imStartEvent( TQIMEvent *e )
+{
+ if ( d->readOnly ) {
+ e->ignore();
+ return;
+ }
+ d->removeSelectedText();
+ d->updateMicroFocusHint();
+ d->imstart = d->imend = d->imselstart = d->imselend = d->cursor;
+}
+
+/*! \reimp
+ */
+void TQLineEdit::imComposeEvent( TQIMEvent *e )
+{
+ if ( d->readOnly ) {
+ e->ignore();
+ return;
+ }
+ 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 = d->imstart + e->cursorPos();
+ d->updateTextLayout();
+ d->updateMicroFocusHint();
+ update();
+}
+
+/*! \reimp
+ */
+void TQLineEdit::imEndEvent( TQIMEvent *e )
+{
+ if ( d->readOnly) {
+ e->ignore();
+ return;
+ }
+ 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 TQLineEdit::focusInEvent( TQFocusEvent* )
+{
+ if ( TQFocusEvent::reason() == TQFocusEvent::Tab ||
+ TQFocusEvent::reason() == TQFocusEvent::Backtab ||
+ TQFocusEvent::reason() == TQFocusEvent::Shortcut )
+ d->maskData ? d->moveCursor( d->nextMaskBlank( 0 ) ) : selectAll();
+ if ( !d->cursorTimer ) {
+ int cft = TQApplication::cursorFlashTime();
+ d->cursorTimer = cft ? startTimer( cft/2 ) : -1;
+ }
+ if( !hasSelectedText() || style().styleHint( TQStyle::SH_BlinkCursorWhenTextSelected ) )
+ d->setCursorVisible( TRUE );
+ if ( d->hasIMSelection() )
+ d->cursor = d->imselstart;
+ d->updateMicroFocusHint();
+}
+
+/*!\reimp
+*/
+
+void TQLineEdit::focusOutEvent( TQFocusEvent* )
+{
+ if ( TQFocusEvent::reason() != TQFocusEvent::ActiveWindow &&
+ TQFocusEvent::reason() != TQFocusEvent::Popup )
+ deselect();
+ d->setCursorVisible( FALSE );
+ if ( d->cursorTimer > 0 )
+ killTimer( d->cursorTimer );
+ d->cursorTimer = 0;
+ if (TQFocusEvent::reason() != TQFocusEvent::Popup)
+ emit lostFocus();
+}
+
+/*!\reimp
+*/
+void TQLineEdit::drawContents( TQPainter *p )
+{
+ const TQColorGroup& cg = colorGroup();
+ TQRect cr = contentsRect();
+ TQFontMetrics fm = fontMetrics();
+ TQRect lineRect( cr.x() + innerMargin, cr.y() + (cr.height() - fm.height() + 1) / 2,
+ cr.width() - 2*innerMargin, fm.height() );
+ TQBrush bg = TQBrush( paletteBackgroundColor() );
+ if ( paletteBackgroundPixmap() )
+ bg = TQBrush( cg.background(), *paletteBackgroundPixmap() );
+ else if ( !isEnabled() )
+ bg = cg.brush( TQColorGroup::Background );
+ TQPoint brushOrigin = p->brushOrigin();
+ p->save();
+ p->setClipRegion( TQRegion(cr) - lineRect );
+ p->setBrushOrigin(brushOrigin - backgroundOffset());
+ p->fillRect( cr, bg );
+ p->restore();
+ TQSharedDoubleBuffer buffer( p, lineRect.x(), lineRect.y(),
+ lineRect.width(), lineRect.height(),
+ hasFocus() ? TQSharedDoubleBuffer::Force : 0 );
+ p = buffer.painter();
+ brushOrigin = p->brushOrigin();
+ p->setBrushOrigin(brushOrigin - backgroundOffset());
+ p->fillRect( lineRect, bg );
+ p->setBrushOrigin(brushOrigin);
+
+ // locate cursor position
+ int cix = 0;
+ TQTextItem 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 = TQMAX( 0, -fm.minLeftBearing() );
+ int minRB = TQMAX( 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() + 1;
+ 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;
+ } else if (d->hscroll < 0) {
+ d->hscroll = 0;
+ }
+ // This updateMicroFocusHint() is corresponding to update() at
+ // IMCompose event. Although the function is invoked from various
+ // other points, some situations such as "candidate selection on
+ // AlignHCenter'ed text" need this invocation because
+ // updateMicroFocusHint() requires updated contentsRect(), and
+ // there are no other chances in such situation that invoke the
+ // function.
+ d->updateMicroFocusHint();
+ // the y offset is there to keep the baseline constant in case we have script changes in the text.
+ TQPoint topLeft = lineRect.topLeft() - TQPoint(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 |= TQt::Underline;
+ if ( font().strikeOut() )
+ textflags |= TQt::StrikeOut;
+ if ( font().overline() )
+ textflags |= TQt::Overline;
+
+ for ( int i = 0; i < d->textLayout.numItems(); i++ ) {
+ TQTextItem 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 ) ) {
+ TQRect highlight = TQRect( TQPoint( tix + ti.cursorToX( TQMAX( d->selstart - first, 0 ) ),
+ lineRect.top() ),
+ TQPoint( tix + ti.cursorToX( TQMIN( d->selend - first, last - first + 1 ) ) - 1,
+ lineRect.bottom() ) ).normalize();
+ p->save();
+ p->setClipRegion( TQRegion( lineRect ) - highlight, TQPainter::CoordPainter );
+ p->drawTextItem( topLeft, ti, textflags );
+ p->setClipRect( lineRect & highlight, TQPainter::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->composeMode() && (last >= d->imstart && first < d->imend ) ) {
+ TQRect highlight = TQRect( TQPoint( tix + ti.cursorToX( TQMAX( d->imstart - first, 0 ) ), lineRect.top() ),
+ TQPoint( tix + ti.cursorToX( TQMIN( d->imend - first, last - first + 1 ) )-1, lineRect.bottom() ) ).normalize();
+ p->save();
+ p->setClipRect( lineRect & highlight, TQPainter::CoordPainter );
+
+ int h1, s1, v1, h2, s2, v2;
+ cg.color( TQColorGroup::Base ).hsv( &h1, &s1, &v1 );
+ cg.color( TQColorGroup::Background ).hsv( &h2, &s2, &v2 );
+ TQColor imCol;
+ imCol.setHsv( h1, s1, ( v1 + v2 ) / 2 );
+ p->fillRect( highlight, imCol );
+ p->drawTextItem( topLeft, ti, textflags );
+ // draw preedit's underline
+ if (d->imend - d->imstart > 0) {
+ p->setPen( cg.text() );
+ p->drawLine( highlight.bottomLeft(), highlight.bottomRight() );
+ }
+ p->restore();
+ }
+
+ // input method selection
+ if ( d->hasIMSelection() && (last >= d->imselstart && first < d->imselend ) ) {
+ TQRect highlight = TQRect( TQPoint( tix + ti.cursorToX( TQMAX( d->imselstart - first, 0 ) ), lineRect.top() ),
+ TQPoint( tix + ti.cursorToX( TQMIN( d->imselend - first, last - first + 1 ) )-1, lineRect.bottom() ) ).normalize();
+ p->save();
+ p->setClipRect( lineRect & highlight, TQPainter::CoordPainter );
+ p->fillRect( highlight, cg.text() );
+ p->setPen( paletteBackgroundColor() );
+ p->drawTextItem( topLeft, ti, textflags );
+ p->restore();
+ supressCursor = TRUE;
+ }
+
+ // overwrite cursor
+ if ( d->cursorVisible && d->maskData &&
+ d->selend <= d->selstart && (last >= d->cursor && first <= d->cursor ) ) {
+ TQRect highlight = TQRect( TQPoint( tix + ti.cursorToX( TQMAX( d->cursor - first, 0 ) ), lineRect.top() ),
+ TQPoint( tix + ti.cursorToX( TQMIN( d->cursor + 1 - first, last - first + 1 ) )-1, lineRect.bottom() ) ).normalize();
+ p->save();
+ p->setClipRect( lineRect & highlight, TQPainter::CoordPainter );
+ p->fillRect( highlight, cg.text() );
+ p->setPen( paletteBackgroundColor() );
+ p->drawTextItem( topLeft, ti, textflags );
+ p->restore();
+ supressCursor = TRUE;
+ }
+ }
+
+ // draw cursor
+ //
+ // Asian users regard IM selection text as cursor on candidate
+ // selection phase of input method, so ordinary cursor should be
+ // invisible if IM selection text exists.
+ if ( d->cursorVisible && !supressCursor && !d->hasIMSelection() && (d->echoMode != PasswordThreeStars) ) {
+ TQPoint from( topLeft.x() + cix, lineRect.top() );
+ TQPoint to = from + TQPoint( 0, lineRect.height() );
+ p->drawLine( from, to );
+ if ( hasRightToLeft ) {
+ bool rtl = ci.isValid() ? ci.isRightToLeft() : TRUE;
+ to = from + TQPoint( (rtl ? -2 : 2), 2 );
+ p->drawLine( from, to );
+ from.ry() += 4;
+ p->drawLine( from, to );
+ }
+ }
+ buffer.end();
+}
+
+
+#ifndef TQT_NO_DRAGANDDROP
+/*!\reimp
+*/
+void TQLineEdit::dragMoveEvent( TQDragMoveEvent *e )
+{
+ if ( !d->readOnly && TQTextDrag::canDecode(e) ) {
+ e->acceptAction();
+ d->cursor = d->xToPos( e->pos().x() );
+ d->cursorVisible = TRUE;
+ update();
+ }
+}
+
+/*!\reimp */
+void TQLineEdit::dragEnterEvent( TQDragEnterEvent * e )
+{
+ TQLineEdit::dragMoveEvent( e );
+}
+
+/*!\reimp */
+void TQLineEdit::dragLeaveEvent( TQDragLeaveEvent *)
+{
+ if ( d->cursorVisible ) {
+ d->cursorVisible = FALSE;
+ update();
+ }
+}
+
+/*!\reimp */
+void TQLineEdit::dropEvent( TQDropEvent* e )
+{
+ TQString str;
+ // try text/plain
+ TQCString plain = "plain";
+ bool decoded = TQTextDrag::decode(e, str, plain);
+ // otherwise we'll accept any kind of text (like text/uri-list)
+ if (! decoded)
+ decoded = TQTextDrag::decode(e, str);
+
+ if ( decoded && !d->readOnly ) {
+ if ( e->source() == this && e->action() == TQDropEvent::Copy )
+ deselect();
+ d->cursor =d->xToPos( e->pos().x() );
+ int selStart = d->cursor;
+ int oldSelStart = d->selstart;
+ int oldSelEnd = d->selend;
+ d->cursorVisible = FALSE;
+ e->acceptAction();
+ insert( str );
+ if ( e->source() == this ) {
+ if ( e->action() == TQDropEvent::Move ) {
+ if ( selStart > oldSelStart && selStart <= oldSelEnd )
+ setSelection( oldSelStart, str.length() );
+ else if ( selStart > oldSelEnd )
+ setSelection( selStart - str.length(), str.length() );
+ else
+ setSelection( selStart, str.length() );
+ } else {
+ setSelection( selStart, str.length() );
+ }
+ }
+ } else {
+ e->ignore();
+ update();
+ }
+}
+
+bool TQLineEditPrivate::drag()
+{
+ q->killTimer( dndTimer );
+ dndTimer = 0;
+ TQTextDrag *tdo = new TQTextDrag( q->selectedText(), q );
+
+ TQGuardedPtr<TQLineEdit> gptr = q;
+ bool r = tdo->drag();
+ if ( !gptr )
+ return FALSE;
+
+ // ### fix the check TQDragObject::target() != q in TQt4 (should not be needed)
+ if ( r && !readOnly && TQDragObject::target() != q ) {
+ int priorState = undoState;
+ removeSelectedText();
+ finishChange( priorState );
+ }
+#ifndef TQT_NO_CURSOR
+ q->setCursor( readOnly ? arrowCursor : ibeamCursor );
+#endif
+ return TRUE;
+}
+
+#endif // TQT_NO_DRAGANDDROP
+
+enum { IdUndo, IdRedo, IdSep1, IdCut, IdCopy, IdPaste, IdClear, IdSep2, IdSelectAll };
+
+/*!\reimp
+*/
+void TQLineEdit::contextMenuEvent( TQContextMenuEvent * e )
+{
+#ifndef TQT_NO_POPUPMENU
+#ifndef TQT_NO_IM
+ if ( d->composeMode() )
+ return;
+#endif
+ d->separate();
+ TQPopupMenu *menu = createPopupMenu();
+ if (!menu)
+ return;
+ TQGuardedPtr<TQPopupMenu> popup = menu;
+ TQGuardedPtr<TQLineEdit> that = this;
+ TQPoint pos = e->reason() == TQContextMenuEvent::Mouse ? e->globalPos() :
+ mapToGlobal( TQPoint(e->pos().x(), 0) ) + TQPoint( width() / 2, height() / 2 );
+ int r = popup->exec( pos );
+ delete (TQPopupMenu*)popup;
+ if ( that && d->menuId ) {
+ switch ( d->menuId - r ) {
+ case IdClear: clear(); break;
+ case IdSelectAll: selectAll(); break;
+ case IdUndo: undo(); break;
+ case IdRedo: redo(); break;
+#ifndef TQT_NO_CLIPBOARD
+ case IdCut: cut(); break;
+ case IdCopy: copy(); break;
+ case IdPaste: paste(); break;
+#endif
+ default:
+ ; // nothing selected or lineedit destroyed. Be careful.
+ }
+ }
+#endif //TQT_NO_POPUPMENU
+}
+
+/*!
+ This function is called to create the popup menu which is shown
+ when the user clicks on the line edit with the right mouse button.
+ If you want to create a custom popup menu, reimplement this
+ function and return the popup menu you create. The popup menu's
+ ownership is transferred to the caller.
+*/
+
+TQPopupMenu *TQLineEdit::createPopupMenu()
+{
+#ifndef TQT_NO_POPUPMENU
+ TQPopupMenu *popup = new TQPopupMenu( this, "qt_edit_menu" );
+ int id = d->menuId = popup->insertItem( tr( "&Undo" ) + ACCEL_KEY( Z ) );
+ popup->insertItem( tr( "&Redo" ) + ACCEL_KEY( Y ) );
+ popup->insertSeparator();
+ popup->insertItem( tr( "Cu&t" ) + ACCEL_KEY( X ) );
+ popup->insertItem( tr( "&Copy" ) + ACCEL_KEY( C ) );
+ popup->insertItem( tr( "&Paste" ) + ACCEL_KEY( V ) );
+ popup->insertItem( tr( "Clear" ) );
+ popup->insertSeparator();
+ popup->insertItem( tr( "Select All" )
+#ifndef TQ_WS_X11
+ + ACCEL_KEY( A )
+#endif
+ );
+
+#ifndef TQT_NO_IM
+ TQInputContext *qic = getInputContext();
+ if ( qic )
+ qic->addMenusTo( popup );
+#endif
+
+ popup->setItemEnabled( id - IdUndo, d->isUndoAvailable() );
+ popup->setItemEnabled( id - IdRedo, d->isRedoAvailable() );
+#ifndef TQT_NO_CLIPBOARD
+ popup->setItemEnabled( id - IdCut, !d->readOnly && d->hasSelectedText() );
+ popup->setItemEnabled( id - IdCopy, d->hasSelectedText() );
+ popup->setItemEnabled( id - IdPaste, !d->readOnly && !TQApplication::clipboard()->text().isEmpty() );
+#else
+ popup->setItemVisible( id - IdCut, FALSE );
+ popup->setItemVisible( id - IdCopy, FALSE );
+ popup->setItemVisible( id - IdPaste, FALSE );
+#endif
+ popup->setItemEnabled( id - IdClear, !d->readOnly && !d->text.isEmpty() );
+ popup->setItemEnabled( id - IdSelectAll, !d->text.isEmpty() && !d->allSelected() );
+ return popup;
+#else
+ return 0;
+#endif
+}
+
+/*! \reimp */
+void TQLineEdit::windowActivationChange( bool b )
+{
+ //### remove me with WHighlightSelection attribute
+ if ( palette().active() != palette().inactive() )
+ update();
+ TQWidget::windowActivationChange( b );
+}
+
+/*! \reimp */
+
+void TQLineEdit::setPalette( const TQPalette & p )
+{
+ //### remove me with WHighlightSelection attribute
+ TQWidget::setPalette( p );
+ update();
+}
+
+/*! \reimp */
+void TQLineEdit::setFont( const TQFont & f )
+{
+ TQWidget::setFont( f );
+ d->updateTextLayout();
+}
+
+/*! \obsolete
+*/
+int TQLineEdit::characterAt( int xpos, TQChar *chr ) const
+{
+ int pos = d->xToPos( xpos + contentsRect().x() - d->hscroll + innerMargin );
+ if ( chr && pos < (int) d->text.length() )
+ *chr = d->text.at( pos );
+ return pos;
+}
+
+/*!
+ \internal
+
+ Sets the password character to \a c.
+
+ \sa passwordChar()
+*/
+
+void TQLineEdit::setPasswordChar( TQChar c )
+{
+ d->passwordChar = c;
+}
+
+/*!
+ \internal
+
+ Returns the password character.
+
+ \sa setPasswordChar()
+*/
+TQChar TQLineEdit::passwordChar() const
+{
+ return ( d->passwordChar.isNull() ? TQChar( style().styleHint( TQStyle::SH_LineEdit_PasswordCharacter, this ) ) : d->passwordChar );
+}
+
+void TQLineEdit::clipboardChanged()
+{
+}
+
+void TQLineEditPrivate::init( const TQString& txt )
+{
+#ifndef TQT_NO_CURSOR
+ q->setCursor( readOnly ? arrowCursor : ibeamCursor );
+#endif
+ q->setFocusPolicy( TQWidget::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( TQSizePolicy( TQSizePolicy::Expanding, TQSizePolicy::Fixed ) );
+ q->setBackgroundMode( PaletteBase );
+ q->setKeyCompression( TRUE );
+ q->setMouseTracking( TRUE );
+ q->setAcceptDrops( TRUE );
+ q->setFrame( TRUE );
+ text = txt;
+ updateTextLayout();
+ cursor = text.length();
+}
+
+void TQLineEditPrivate::updateTextLayout()
+{
+ // replace all non-printable characters with spaces (to avoid
+ // drawing boxes when using fonts that don't have glyphs for such
+ // characters)
+ const TQString &displayText = q->displayText();
+ TQString str(displayText.unicode(), displayText.length());
+ TQChar* uc = (TQChar*)str.unicode();
+ for (int i = 0; i < (int)str.length(); ++i) {
+ if (! uc[i].isPrint())
+ uc[i] = TQChar(0x0020);
+ }
+ textLayout.setText( str, q->font() );
+ textLayout.setDirection((TQChar::Direction)direction);
+ textLayout.beginLayout(TQTextLayout::SingleLine);
+ textLayout.beginLine( INT_MAX );
+ while ( !textLayout.atEnd() )
+ textLayout.addCurrentItem();
+ ascent = 0;
+ textLayout.endLine(0, 0, TQt::AlignLeft|TQt::SingleLine, &ascent);
+}
+
+int TQLineEditPrivate::xToPosInternal( int x, TQTextItem::CursorPosition betweenOrOn ) const
+{
+ x-= q->contentsRect().x() - hscroll + innerMargin;
+ for ( int i = 0; i < textLayout.numItems(); ++i ) {
+ TQTextItem ti = textLayout.itemAt( i );
+ TQRect tir = ti.rect();
+ if ( x >= tir.left() && x <= tir.right() )
+ return ti.xToCursor( x - tir.x(), betweenOrOn ) + ti.from();
+ }
+ return x < 0 ? -1 : text.length();
+}
+
+int TQLineEditPrivate::xToPos( int x, TQTextItem::CursorPosition betweenOrOn ) const
+{
+ int pos = xToPosInternal( x, betweenOrOn );
+ return ( pos < 0 ) ? 0 : pos;
+}
+
+
+TQRect TQLineEditPrivate::cursorRect() const
+{
+ TQRect cr = q->contentsRect();
+ int cix = cr.x() - hscroll + innerMargin;
+ TQTextItem 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 TQRect( cix-4, cr.y() + ( cr.height() - ch + 1) / 2, 8, ch + 1 );
+}
+
+void TQLineEditPrivate::updateMicroFocusHint()
+{
+ // To reduce redundant microfocus update notification, we remember
+ // the old rect and update the microfocus if actual update is
+ // required. The rect o is intentionally static because some
+ // notifyee requires the microfocus information as global update
+ // rather than per notifyee update to place shared widget around
+ // microfocus.
+ static TQRect o;
+ if ( q->hasFocus() ) {
+ TQRect r = cursorRect();
+ if ( o != r ) {
+ o = r;
+ q->setMicroFocusHint( r.x(), r.y(), r.width(), r.height() );
+ }
+ }
+}
+
+void TQLineEditPrivate::moveCursor( int pos, bool mark )
+{
+ if ( pos != cursor )
+ separate();
+ if ( maskData && pos > cursor )
+ pos = nextMaskBlank( pos );
+ else if ( maskData && pos < cursor )
+ pos = prevMaskBlank( pos );
+ 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 = TQMIN( anchor, pos );
+ selend = TQMAX( anchor, pos );
+ } else {
+ deselect();
+ }
+ if ( fullUpdate ) {
+ cursor = pos;
+ q->update();
+ } else {
+ setCursorVisible( FALSE );
+ cursor = pos;
+ setCursorVisible( TRUE );
+ }
+ updateMicroFocusHint();
+ if ( mark && !q->style().styleHint( TQStyle::SH_BlinkCursorWhenTextSelected ) )
+ setCursorVisible( FALSE );
+ if ( mark || selDirty ) {
+ selDirty = FALSE;
+ emit q->selectionChanged();
+ }
+}
+
+void TQLineEditPrivate::finishChange( int validateFromState, bool setModified )
+{
+ bool lineDirty = selDirty;
+ if ( textDirty ) {
+ // do validation
+ bool wasValidInput = validInput;
+ validInput = TRUE;
+#ifndef TQT_NO_VALIDATOR
+ if ( validator && validateFromState >= 0 ) {
+ TQString textCopy = text;
+ int cursorCopy = cursor;
+ validInput = ( validator->validate( textCopy, cursorCopy ) != TQValidator::Invalid );
+ if ( validInput ) {
+ if ( text != textCopy ) {
+ q->setText( textCopy );
+ cursor = cursorCopy;
+ return;
+ }
+ cursor = cursorCopy;
+ }
+ }
+#endif
+ if ( validateFromState >= 0 && wasValidInput && !validInput ) {
+ undo( validateFromState );
+ history.resize( undoState );
+ validInput = TRUE;
+ textDirty = setModified = FALSE;
+ }
+ updateTextLayout();
+ updateMicroFocusHint();
+ lineDirty |= textDirty;
+ if ( setModified )
+ modified = TRUE;
+ if ( textDirty ) {
+ textDirty = FALSE;
+ emit q->textChanged( maskData ? stripString(text) : text );
+ }
+#if defined(QT_ACCESSIBILITY_SUPPORT)
+ TQAccessible::updateAccessibility( q, 0, TQAccessible::ValueChanged );
+#endif
+ }
+ if ( selDirty ) {
+ selDirty = FALSE;
+ emit q->selectionChanged();
+ }
+ if ( lineDirty || !setModified )
+ q->update();
+}
+
+void TQLineEditPrivate::setText( const TQString& txt )
+{
+ deselect();
+ TQString oldText = text;
+ if ( maskData ) {
+ text = maskString( 0, txt, TRUE );
+ text += clearString( text.length(), maxLength - text.length() );
+ } else {
+ text = txt.isEmpty() ? txt : txt.left( maxLength );
+ }
+ history.clear();
+ undoState = 0;
+ cursor = text.length();
+ textDirty = ( oldText != text );
+}
+
+
+void TQLineEditPrivate::setCursorVisible( bool visible )
+{
+ if ( (bool)cursorVisible == visible )
+ return;
+ if ( cursorTimer )
+ cursorVisible = visible;
+ TQRect r = cursorRect();
+ if ( maskData || !q->contentsRect().contains( r ) )
+ q->update();
+ else
+ q->update( r );
+}
+
+void TQLineEditPrivate::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;
+}
+
+void TQLineEditPrivate::insert( const TQString& s )
+{
+ if ( maskData ) {
+ TQString ms = maskString( cursor, s );
+ for ( int i = 0; i < (int) ms.length(); ++i ) {
+ addCommand ( Command( DeleteSelection, cursor+i, text.at(cursor+i) ) );
+ addCommand( Command( Insert, cursor+i, ms.at(i) ) );
+ }
+ text.replace( cursor, ms.length(), ms );
+ cursor += ms.length();
+ cursor = nextMaskBlank( cursor );
+ } else {
+ int remaining = maxLength - text.length();
+ text.insert( cursor, s.left(remaining) );
+ for ( int i = 0; i < (int) s.left(remaining).length(); ++i )
+ addCommand( Command( Insert, cursor++, s.at(i) ) );
+ }
+ textDirty = TRUE;
+}
+
+void TQLineEditPrivate::del( bool wasBackspace )
+{
+ if ( cursor < (int) text.length() ) {
+ addCommand ( Command( (CommandType)((maskData?2:0)+(wasBackspace?Remove:Delete)), cursor, text.at(cursor) ) );
+ if ( maskData ) {
+ text.replace( cursor, 1, clearString( cursor, 1 ) );
+ addCommand( Command( Insert, cursor, text.at( cursor ) ) );
+ } else {
+ text.remove( cursor, 1 );
+ }
+ textDirty = TRUE;
+ }
+}
+
+void TQLineEditPrivate::removeSelectedText()
+{
+ if ( selstart < selend && selend <= (int) text.length() ) {
+ separate();
+ 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) ) );
+ }
+ if ( maskData ) {
+ text.replace( selstart, selend - selstart, clearString( selstart, selend - selstart ) );
+ for ( int i = 0; i < selend - selstart; ++i )
+ addCommand( Command( Insert, selstart + i, text.at( selstart + i ) ) );
+ } else {
+ text.remove( selstart, selend - selstart );
+ }
+ if ( cursor > selstart )
+ cursor -= TQMIN( cursor, selend ) - selstart;
+ deselect();
+ textDirty = TRUE;
+ }
+}
+
+void TQLineEditPrivate::parseInputMask( const TQString &maskFields )
+{
+ if ( maskFields.isEmpty() || maskFields.section( ';', 0, 0 ).isEmpty() ) {
+ if ( maskData ) {
+ delete [] maskData;
+ maskData = 0;
+ maxLength = 32767;
+ q->setText( TQString::null );
+ }
+ return;
+ }
+
+ inputMask = maskFields.section( ';', 0, 0 );
+ blank = maskFields.section( ';', 1, 1 ).at(0);
+ if ( blank.isNull() )
+ blank = ' ';
+
+ // calculate maxLength / maskData length
+ maxLength = 0;
+ TQChar c = 0;
+ uint i;
+ for ( i=0; i<inputMask.length(); i++ ) {
+ c = inputMask.at(i);
+ if ( i > 0 && inputMask.at( i-1 ) == '\\' ) {
+ maxLength++;
+ continue;
+ }
+ if ( c != '\\' && c != '!' &&
+ c != '<' && c != '>' &&
+ c != '{' && c != '}' &&
+ c != '[' && c != ']' )
+ maxLength++;
+ }
+
+ delete [] maskData;
+ maskData = new MaskInputData[ maxLength ];
+
+ MaskInputData::Casemode m = MaskInputData::NoCaseMode;
+ c = 0;
+ bool s;
+ bool escape = FALSE;
+ int index = 0;
+ for ( i = 0; i < inputMask.length(); i++ ) {
+ c = inputMask.at(i);
+ if ( escape ) {
+ s = TRUE;
+ maskData[ index ].maskChar = c;
+ maskData[ index ].separator = s;
+ maskData[ index ].caseMode = m;
+ index++;
+ escape = FALSE;
+ } else if ( c == '<' || c == '>' || c == '!') {
+ switch ( c ) {
+ case '<':
+ m = MaskInputData::Lower;
+ break;
+ case '>':
+ m = MaskInputData::Upper;
+ break;
+ case '!':
+ m = MaskInputData::NoCaseMode;
+ break;
+ }
+ } else if ( c != '{' && c != '}' && c != '[' && c != ']' ) {
+ switch ( c ) {
+ case 'A':
+ case 'a':
+ case 'N':
+ case 'n':
+ case 'X':
+ case 'x':
+ case '9':
+ case '0':
+ case 'D':
+ case 'd':
+ case '#':
+ s = FALSE;
+ break;
+ case '\\':
+ escape = TRUE;
+ default:
+ s = TRUE;
+ break;
+ }
+
+ if ( !escape ) {
+ maskData[ index ].maskChar = c;
+ maskData[ index ].separator = s;
+ maskData[ index ].caseMode = m;
+ index++;
+ }
+ }
+ }
+ q->setText( TQString::null );
+}
+
+
+/* checks if the key is valid compared to the inputMask */
+bool TQLineEditPrivate::isValidInput( TQChar key, TQChar mask ) const
+{
+ switch ( mask ) {
+ case 'A':
+ if ( key.isLetter() && key != blank )
+ return TRUE;
+ break;
+ case 'a':
+ if ( key.isLetter() || key == blank )
+ return TRUE;
+ break;
+ case 'N':
+ if ( key.isLetterOrNumber() && key != blank )
+ return TRUE;
+ break;
+ case 'n':
+ if ( key.isLetterOrNumber() || key == blank )
+ return TRUE;
+ break;
+ case 'X':
+ if ( key.isPrint() && key != blank )
+ return TRUE;
+ break;
+ case 'x':
+ if ( key.isPrint() || key == blank )
+ return TRUE;
+ break;
+ case '9':
+ if ( key.isNumber() && key != blank )
+ return TRUE;
+ break;
+ case '0':
+ if ( key.isNumber() || key == blank )
+ return TRUE;
+ break;
+ case 'D':
+ if ( key.isNumber() && key.digitValue() > 0 && key != blank )
+ return TRUE;
+ break;
+ case 'd':
+ if ( (key.isNumber() && key.digitValue() > 0) || key == blank )
+ return TRUE;
+ break;
+ case '#':
+ if ( key.isNumber() || key == '+' || key == '-' || key == blank )
+ return TRUE;
+ break;
+ default:
+ break;
+ }
+ return FALSE;
+}
+
+/*
+ Applies the inputMask on \a str starting from position \a pos in the mask. \a clear
+ specifies from where characters should be gotten when a separator is met in \a str - TRUE means
+ that blanks will be used, FALSE that previous input is used.
+ Calling this when no inputMask is set is undefined.
+*/
+TQString TQLineEditPrivate::maskString( uint pos, const TQString &str, bool clear) const
+{
+ if ( pos >= (uint)maxLength )
+ return TQString::fromLatin1("");
+
+ TQString fill;
+ fill = clear ? clearString( 0, maxLength ) : text;
+
+ uint strIndex = 0;
+ TQString s = TQString::fromLatin1("");
+ int i = pos;
+ while ( i < maxLength ) {
+ if ( strIndex < str.length() ) {
+ if ( maskData[ i ].separator ) {
+ s += maskData[ i ].maskChar;
+ if ( str[(int)strIndex] == maskData[ i ].maskChar )
+ strIndex++;
+ ++i;
+ } else {
+ if ( isValidInput( str[(int)strIndex], maskData[ i ].maskChar ) ) {
+ switch ( maskData[ i ].caseMode ) {
+ case MaskInputData::Upper:
+ s += str[(int)strIndex].upper();
+ break;
+ case MaskInputData::Lower:
+ s += str[(int)strIndex].lower();
+ break;
+ default:
+ s += str[(int)strIndex];
+ }
+ ++i;
+ } else {
+ // search for separator first
+ int n = findInMask( i, TRUE, TRUE, str[(int)strIndex] );
+ if ( n != -1 ) {
+ if ( str.length() != 1 || i == 0 || (i > 0 && (!maskData[i-1].separator || maskData[i-1].maskChar != str[(int)strIndex])) ) {
+ s += fill.mid( i, n-i+1 );
+ i = n + 1; // update i to find + 1
+ }
+ } else {
+ // search for valid blank if not
+ n = findInMask( i, TRUE, FALSE, str[(int)strIndex] );
+ if ( n != -1 ) {
+ s += fill.mid( i, n-i );
+ switch ( maskData[ n ].caseMode ) {
+ case MaskInputData::Upper:
+ s += str[(int)strIndex].upper();
+ break;
+ case MaskInputData::Lower:
+ s += str[(int)strIndex].lower();
+ break;
+ default:
+ s += str[(int)strIndex];
+ }
+ i = n + 1; // updates i to find + 1
+ }
+ }
+ }
+ strIndex++;
+ }
+ } else
+ break;
+ }
+
+ return s;
+}
+
+
+
+/*
+ Returns a "cleared" string with only separators and blank chars.
+ Calling this when no inputMask is set is undefined.
+*/
+TQString TQLineEditPrivate::clearString( uint pos, uint len ) const
+{
+ if ( pos >= (uint)maxLength )
+ return TQString::null;
+
+ TQString s;
+ int end = TQMIN( (uint)maxLength, pos + len );
+ for ( int i=pos; i<end; i++ )
+ if ( maskData[ i ].separator )
+ s += maskData[ i ].maskChar;
+ else
+ s += blank;
+
+ return s;
+}
+
+/*
+ Strips blank parts of the input in a TQLineEdit when an inputMask is set,
+ separators are still included. Typically "127.0__.0__.1__" becomes "127.0.0.1".
+*/
+TQString TQLineEditPrivate::stripString( const TQString &str ) const
+{
+ if ( !maskData )
+ return str;
+
+ TQString s;
+ int end = TQMIN( maxLength, (int)str.length() );
+ for (int i=0; i < end; i++ )
+ if ( maskData[ i ].separator )
+ s += maskData[ i ].maskChar;
+ else
+ if ( str[i] != blank )
+ s += str[i];
+
+ return s;
+}
+
+/* searches forward/backward in maskData for either a separator or a blank */
+int TQLineEditPrivate::findInMask( int pos, bool forward, bool findSeparator, TQChar searchChar ) const
+{
+ if ( pos >= maxLength || pos < 0 )
+ return -1;
+
+ int end = forward ? maxLength : -1;
+ int step = forward ? 1 : -1;
+ int i = pos;
+
+ while ( i != end ) {
+ if ( findSeparator ) {
+ if ( maskData[ i ].separator && maskData[ i ].maskChar == searchChar )
+ return i;
+ } else {
+ if ( !maskData[ i ].separator ) {
+ if ( searchChar.isNull() )
+ return i;
+ else if ( isValidInput( searchChar, maskData[ i ].maskChar ) )
+ return i;
+ }
+ }
+ i += step;
+ }
+ return -1;
+}
+
+
+#endif // TQT_NO_LINEEDIT