-
J-P Nurmi authored
The main use case is for enabling text selection by keyboard for read-only editors. Change-Id: Ieaa9af366fd0eaf863a104a2fdf33c9ddad38b10 Reviewed-by:
Alan Alpert (Personal) <416365416c@gmail.com> Reviewed-by:
Frederik Gladhorn <frederik.gladhorn@digia.com>
70ce4ec6
/******************************************************************************** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).** Contact: http://www.qt-project.org/legal**** This file is part of the QtQml module of the Qt Toolkit.**** $QT_BEGIN_LICENSE:LGPL$** Commercial License Usage** Licensees holding valid commercial Qt licenses may use this file in** accordance with the commercial license agreement provided with the** Software or, alternatively, in accordance with the terms contained in** a written agreement between you and Digia. For licensing terms and** conditions see http://qt.digia.com/licensing. For further information** use the contact form at http://qt.digia.com/contact-us.**** GNU Lesser General Public License Usage** Alternatively, this file may be used under the terms of the GNU Lesser** General Public License version 2.1 as published by the Free Software** Foundation and appearing in the file LICENSE.LGPL included in the** packaging of this file. Please review the following information to** ensure the GNU Lesser General Public License version 2.1 requirements** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.**** In addition, as a special exception, Digia gives you certain additional** rights. These rights are described in the Digia Qt LGPL Exception** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.**** GNU General Public License Usage** Alternatively, this file may be used under the terms of the GNU** General Public License version 3.0 as published by the Free Software** Foundation and appearing in the file LICENSE.GPL included in the** packaging of this file. Please review the following information to** ensure the GNU General Public License version 3.0 requirements will be** met: http://www.gnu.org/copyleft/gpl.html.****** $QT_END_LICENSE$******************************************************************************/#include "qquicktextedit_p.h"#include "qquicktextedit_p_p.h"#include "qquicktextcontrol_p.h"#include "qquicktext_p_p.h"#include "qquickevents_p_p.h"#include "qquickwindow.h"#include "qquicktextnode_p.h"#include "qquicktextutil_p.h"#include <QtQuick/qsgsimplerectnode.h>#include <QtQml/qqmlinfo.h>#include <QtGui/qguiapplication.h>#include <QtGui/qevent.h>#include <QtGui/qpainter.h>#include <QtGui/qtextobject.h>#include <QtCore/qmath.h>#include <private/qqmlglobal_p.h>#include <private/qqmlproperty_p.h>#include <private/qtextengine_p.h>#include <private/qsgadaptationlayer_p.h>#include "qquicktextdocument.h"QT_BEGIN_NAMESPACE/*! \qmltype TextEdit \instantiates QQuickTextEdit7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
\inqmlmodule QtQuick 2
\ingroup qtquick-visual
\ingroup qtquick-input
\inherits Item
\brief Displays multiple lines of editable formatted text
The TextEdit item displays a block of editable, formatted text.
It can display both plain and rich text. For example:
\qml
TextEdit {
width: 240
text: "<b>Hello</b> <i>World!</i>"
font.family: "Helvetica"
font.pointSize: 20
color: "blue"
focus: true
}
\endqml
\image declarative-textedit.gif
Setting \l {Item::focus}{focus} to \c true enables the TextEdit item to receive keyboard focus.
Note that the TextEdit does not implement scrolling, following the cursor, or other behaviors specific
to a look-and-feel. For example, to add flickable scrolling that follows the cursor:
\snippet qml/texteditor.qml 0
A particular look-and-feel might use smooth scrolling (eg. using SmoothedAnimation), might have a visible
scrollbar, or a scrollbar that fades in to show location, etc.
Clipboard support is provided by the cut(), copy(), and paste() functions, and the selection can
be handled in a traditional "mouse" mechanism by setting selectByMouse, or handled completely
from QML by manipulating selectionStart and selectionEnd, or using selectAll() or selectWord().
You can translate between cursor positions (characters from the start of the document) and pixel
points using positionAt() and positionToRectangle().
\sa Text, TextInput, {examples/quick/text/textselection}{Text Selection example}
*/
/*!
\qmlsignal QtQuick2::TextEdit::onLinkActivated(string link)
This handler is called when the user clicks on a link embedded in the text.
The link must be in rich text or HTML format and the
\a link string provides access to the particular link.
*/
QQuickTextEdit::QQuickTextEdit(QQuickItem *parent)
: QQuickImplicitSizeItem(*(new QQuickTextEditPrivate), parent)
{
Q_D(QQuickTextEdit);
d->init();
}
QString QQuickTextEdit::text() const
{
Q_D(const QQuickTextEdit);
if (!d->textCached) {
QQuickTextEditPrivate *d = const_cast<QQuickTextEditPrivate *>(d_func());
#ifndef QT_NO_TEXTHTMLPARSER
if (d->richText)
d->text = d->control->toHtml();
else
#endif
d->text = d->control->toPlainText();
d->textCached = true;
}
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return d->text;
}
/*!
\qmlproperty string QtQuick2::TextEdit::font.family
Sets the family name of the font.
The family name is case insensitive and may optionally include a foundry name, e.g. "Helvetica [Cronyx]".
If the family is available from more than one foundry and the foundry isn't specified, an arbitrary foundry is chosen.
If the family isn't available a family will be set using the font matching algorithm.
*/
/*!
\qmlproperty bool QtQuick2::TextEdit::font.bold
Sets whether the font weight is bold.
*/
/*!
\qmlproperty enumeration QtQuick2::TextEdit::font.weight
Sets the font's weight.
The weight can be one of:
\list
\li Font.Light
\li Font.Normal - the default
\li Font.DemiBold
\li Font.Bold
\li Font.Black
\endlist
\qml
TextEdit { text: "Hello"; font.weight: Font.DemiBold }
\endqml
*/
/*!
\qmlproperty bool QtQuick2::TextEdit::font.italic
Sets whether the font has an italic style.
*/
/*!
\qmlproperty bool QtQuick2::TextEdit::font.underline
Sets whether the text is underlined.
*/
/*!
\qmlproperty bool QtQuick2::TextEdit::font.strikeout
Sets whether the font has a strikeout style.
*/
/*!
\qmlproperty real QtQuick2::TextEdit::font.pointSize
Sets the font size in points. The point size must be greater than zero.
*/
/*!
\qmlproperty int QtQuick2::TextEdit::font.pixelSize
Sets the font size in pixels.
Using this function makes the font device dependent. Use
\l{TextEdit::font.pointSize} to set the size of the font in a
device independent manner.
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*/
/*!
\qmlproperty real QtQuick2::TextEdit::font.letterSpacing
Sets the letter spacing for the font.
Letter spacing changes the default spacing between individual letters in the font.
A positive value increases the letter spacing by the corresponding pixels; a negative value decreases the spacing.
*/
/*!
\qmlproperty real QtQuick2::TextEdit::font.wordSpacing
Sets the word spacing for the font.
Word spacing changes the default spacing between individual words.
A positive value increases the word spacing by a corresponding amount of pixels,
while a negative value decreases the inter-word spacing accordingly.
*/
/*!
\qmlproperty enumeration QtQuick2::TextEdit::font.capitalization
Sets the capitalization for the text.
\list
\li Font.MixedCase - This is the normal text rendering option where no capitalization change is applied.
\li Font.AllUppercase - This alters the text to be rendered in all uppercase type.
\li Font.AllLowercase - This alters the text to be rendered in all lowercase type.
\li Font.SmallCaps - This alters the text to be rendered in small-caps type.
\li Font.Capitalize - This alters the text to be rendered with the first character of each word as an uppercase character.
\endlist
\qml
TextEdit { text: "Hello"; font.capitalization: Font.AllLowercase }
\endqml
*/
/*!
\qmlproperty string QtQuick2::TextEdit::text
The text to display. If the text format is AutoText the text edit will
automatically determine whether the text should be treated as
rich text. This determination is made using Qt::mightBeRichText().
*/
void QQuickTextEdit::setText(const QString &text)
{
Q_D(QQuickTextEdit);
if (QQuickTextEdit::text() == text)
return;
d->document->clearResources();
d->richText = d->format == RichText || (d->format == AutoText && Qt::mightBeRichText(text));
if (!isComponentComplete()) {
d->text = text;
} else if (d->richText) {
#ifndef QT_NO_TEXTHTMLPARSER
d->control->setHtml(text);
#else
d->control->setPlainText(text);
#endif
} else {
d->control->setPlainText(text);
}
}
/*!
\qmlproperty enumeration QtQuick2::TextEdit::textFormat
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The way the text property should be displayed.
\list
\li TextEdit.AutoText
\li TextEdit.PlainText
\li TextEdit.RichText
\endlist
The default is TextEdit.PlainText. If the text format is TextEdit.AutoText the text edit
will automatically determine whether the text should be treated as
rich text. This determination is made using Qt::mightBeRichText().
\table
\row
\li
\qml
Column {
TextEdit {
font.pointSize: 24
text: "<b>Hello</b> <i>World!</i>"
}
TextEdit {
font.pointSize: 24
textFormat: TextEdit.RichText
text: "<b>Hello</b> <i>World!</i>"
}
TextEdit {
font.pointSize: 24
textFormat: TextEdit.PlainText
text: "<b>Hello</b> <i>World!</i>"
}
}
\endqml
\li \image declarative-textformat.png
\endtable
*/
QQuickTextEdit::TextFormat QQuickTextEdit::textFormat() const
{
Q_D(const QQuickTextEdit);
return d->format;
}
void QQuickTextEdit::setTextFormat(TextFormat format)
{
Q_D(QQuickTextEdit);
if (format == d->format)
return;
bool wasRich = d->richText;
d->richText = format == RichText || (format == AutoText && (wasRich || Qt::mightBeRichText(text())));
#ifndef QT_NO_TEXTHTMLPARSER
if (isComponentComplete()) {
if (wasRich && !d->richText) {
d->control->setPlainText(!d->textCached ? d->control->toHtml() : d->text);
updateSize();
} else if (!wasRich && d->richText) {
d->control->setHtml(!d->textCached ? d->control->toPlainText() : d->text);
updateSize();
}
}
#endif
d->format = format;
d->control->setAcceptRichText(d->format != PlainText);
emit textFormatChanged(d->format);
}
/*!
\qmlproperty enumeration QtQuick2::TextEdit::renderType
351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420
Override the default rendering type for this component.
Supported render types are:
\list
\li Text.QtRendering - the default
\li Text.NativeRendering
\endlist
Select Text.NativeRendering if you prefer text to look native on the target platform and do
not require advanced features such as transformation of the text. Using such features in
combination with the NativeRendering render type will lend poor and sometimes pixelated
results.
*/
QQuickTextEdit::RenderType QQuickTextEdit::renderType() const
{
Q_D(const QQuickTextEdit);
return d->renderType;
}
void QQuickTextEdit::setRenderType(QQuickTextEdit::RenderType renderType)
{
Q_D(QQuickTextEdit);
if (d->renderType == renderType)
return;
d->renderType = renderType;
emit renderTypeChanged();
d->updateDefaultTextOption();
if (isComponentComplete())
updateSize();
}
QFont QQuickTextEdit::font() const
{
Q_D(const QQuickTextEdit);
return d->sourceFont;
}
void QQuickTextEdit::setFont(const QFont &font)
{
Q_D(QQuickTextEdit);
if (d->sourceFont == font)
return;
d->sourceFont = font;
QFont oldFont = d->font;
d->font = font;
if (d->font.pointSizeF() != -1) {
// 0.5pt resolution
qreal size = qRound(d->font.pointSizeF()*2.0);
d->font.setPointSizeF(size/2.0);
}
if (oldFont != d->font) {
d->document->setDefaultFont(d->font);
if (d->cursorItem) {
d->cursorItem->setHeight(QFontMetrics(d->font).height());
moveCursorDelegate();
}
updateSize();
updateDocument();
#ifndef QT_NO_IM
updateInputMethod(Qt::ImCursorRectangle | Qt::ImFont);
#endif
}
emit fontChanged(d->sourceFont);
}
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/*!
\qmlproperty color QtQuick2::TextEdit::color
The text color.
\qml
// green text using hexadecimal notation
TextEdit { color: "#00FF00" }
\endqml
\qml
// steelblue text using SVG color name
TextEdit { color: "steelblue" }
\endqml
*/
QColor QQuickTextEdit::color() const
{
Q_D(const QQuickTextEdit);
return d->color;
}
void QQuickTextEdit::setColor(const QColor &color)
{
Q_D(QQuickTextEdit);
if (d->color == color)
return;
d->color = color;
updateDocument();
emit colorChanged(d->color);
}
/*!
\qmlproperty color QtQuick2::TextEdit::selectionColor
The text highlight color, used behind selections.
*/
QColor QQuickTextEdit::selectionColor() const
{
Q_D(const QQuickTextEdit);
return d->selectionColor;
}
void QQuickTextEdit::setSelectionColor(const QColor &color)
{
Q_D(QQuickTextEdit);
if (d->selectionColor == color)
return;
d->selectionColor = color;
updateDocument();
emit selectionColorChanged(d->selectionColor);
}
/*!
\qmlproperty color QtQuick2::TextEdit::selectedTextColor
The selected text color, used in selections.
*/
QColor QQuickTextEdit::selectedTextColor() const
{
Q_D(const QQuickTextEdit);
return d->selectedTextColor;
}
void QQuickTextEdit::setSelectedTextColor(const QColor &color)
{
Q_D(QQuickTextEdit);
if (d->selectedTextColor == color)
return;
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d->selectedTextColor = color;
updateDocument();
emit selectedTextColorChanged(d->selectedTextColor);
}
/*!
\qmlproperty enumeration QtQuick2::TextEdit::horizontalAlignment
\qmlproperty enumeration QtQuick2::TextEdit::verticalAlignment
\qmlproperty enumeration QtQuick2::TextEdit::effectiveHorizontalAlignment
Sets the horizontal and vertical alignment of the text within the TextEdit item's
width and height. By default, the text alignment follows the natural alignment
of the text, for example text that is read from left to right will be aligned to
the left.
Valid values for \c horizontalAlignment are:
\list
\li TextEdit.AlignLeft (default)
\li TextEdit.AlignRight
\li TextEdit.AlignHCenter
\li TextEdit.AlignJustify
\endlist
Valid values for \c verticalAlignment are:
\list
\li TextEdit.AlignTop (default)
\li TextEdit.AlignBottom
\li TextEdit.AlignVCenter
\endlist
When using the attached property LayoutMirroring::enabled to mirror application
layouts, the horizontal alignment of text will also be mirrored. However, the property
\c horizontalAlignment will remain unchanged. To query the effective horizontal alignment
of TextEdit, use the read-only property \c effectiveHorizontalAlignment.
*/
QQuickTextEdit::HAlignment QQuickTextEdit::hAlign() const
{
Q_D(const QQuickTextEdit);
return d->hAlign;
}
void QQuickTextEdit::setHAlign(HAlignment align)
{
Q_D(QQuickTextEdit);
bool forceAlign = d->hAlignImplicit && d->effectiveLayoutMirror;
d->hAlignImplicit = false;
if (d->setHAlign(align, forceAlign) && isComponentComplete()) {
d->updateDefaultTextOption();
updateSize();
}
}
void QQuickTextEdit::resetHAlign()
{
Q_D(QQuickTextEdit);
d->hAlignImplicit = true;
if (d->determineHorizontalAlignment() && isComponentComplete()) {
d->updateDefaultTextOption();
updateSize();
}
}
QQuickTextEdit::HAlignment QQuickTextEdit::effectiveHAlign() const
{
Q_D(const QQuickTextEdit);
QQuickTextEdit::HAlignment effectiveAlignment = d->hAlign;
if (!d->hAlignImplicit && d->effectiveLayoutMirror) {
switch (d->hAlign) {
case QQuickTextEdit::AlignLeft:
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effectiveAlignment = QQuickTextEdit::AlignRight;
break;
case QQuickTextEdit::AlignRight:
effectiveAlignment = QQuickTextEdit::AlignLeft;
break;
default:
break;
}
}
return effectiveAlignment;
}
bool QQuickTextEditPrivate::setHAlign(QQuickTextEdit::HAlignment alignment, bool forceAlign)
{
Q_Q(QQuickTextEdit);
if (hAlign != alignment || forceAlign) {
QQuickTextEdit::HAlignment oldEffectiveHAlign = q->effectiveHAlign();
hAlign = alignment;
emit q->horizontalAlignmentChanged(alignment);
if (oldEffectiveHAlign != q->effectiveHAlign())
emit q->effectiveHorizontalAlignmentChanged();
return true;
}
return false;
}
Qt::LayoutDirection QQuickTextEditPrivate::textDirection(const QString &text) const
{
const QChar *character = text.constData();
while (!character->isNull()) {
switch (character->direction()) {
case QChar::DirL:
return Qt::LeftToRight;
case QChar::DirR:
case QChar::DirAL:
case QChar::DirAN:
return Qt::RightToLeft;
default:
break;
}
character++;
}
return Qt::LayoutDirectionAuto;
}
bool QQuickTextEditPrivate::determineHorizontalAlignment()
{
Q_Q(QQuickTextEdit);
if (hAlignImplicit && q->isComponentComplete()) {
Qt::LayoutDirection direction = contentDirection;
#ifndef QT_NO_IM
if (direction == Qt::LayoutDirectionAuto) {
const QString preeditText = control->textCursor().block().layout()->preeditAreaText();
direction = textDirection(preeditText);
}
if (direction == Qt::LayoutDirectionAuto)
direction = qGuiApp->inputMethod()->inputDirection();
#endif
return setHAlign(direction == Qt::RightToLeft ? QQuickTextEdit::AlignRight : QQuickTextEdit::AlignLeft);
}
return false;
}
void QQuickTextEditPrivate::mirrorChange()
{
Q_Q(QQuickTextEdit);
if (q->isComponentComplete()) {
if (!hAlignImplicit && (hAlign == QQuickTextEdit::AlignRight || hAlign == QQuickTextEdit::AlignLeft)) {
631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700
updateDefaultTextOption();
q->updateSize();
emit q->effectiveHorizontalAlignmentChanged();
}
}
}
#ifndef QT_NO_IM
Qt::InputMethodHints QQuickTextEditPrivate::effectiveInputMethodHints() const
{
return inputMethodHints | Qt::ImhMultiLine;
}
#endif
QQuickTextEdit::VAlignment QQuickTextEdit::vAlign() const
{
Q_D(const QQuickTextEdit);
return d->vAlign;
}
void QQuickTextEdit::setVAlign(QQuickTextEdit::VAlignment alignment)
{
Q_D(QQuickTextEdit);
if (alignment == d->vAlign)
return;
d->vAlign = alignment;
d->updateDefaultTextOption();
updateSize();
moveCursorDelegate();
emit verticalAlignmentChanged(d->vAlign);
}
/*!
\qmlproperty enumeration QtQuick2::TextEdit::wrapMode
Set this property to wrap the text to the TextEdit item's width.
The text will only wrap if an explicit width has been set.
\list
\li TextEdit.NoWrap - no wrapping will be performed. If the text contains insufficient newlines, then implicitWidth will exceed a set width.
\li TextEdit.WordWrap - wrapping is done on word boundaries only. If a word is too long, implicitWidth will exceed a set width.
\li TextEdit.WrapAnywhere - wrapping is done at any point on a line, even if it occurs in the middle of a word.
\li TextEdit.Wrap - if possible, wrapping occurs at a word boundary; otherwise it will occur at the appropriate point on the line, even in the middle of a word.
\endlist
The default is TextEdit.NoWrap. If you set a width, consider using TextEdit.Wrap.
*/
QQuickTextEdit::WrapMode QQuickTextEdit::wrapMode() const
{
Q_D(const QQuickTextEdit);
return d->wrapMode;
}
void QQuickTextEdit::setWrapMode(WrapMode mode)
{
Q_D(QQuickTextEdit);
if (mode == d->wrapMode)
return;
d->wrapMode = mode;
d->updateDefaultTextOption();
updateSize();
emit wrapModeChanged();
}
/*!
\qmlproperty int QtQuick2::TextEdit::lineCount
Returns the total number of lines in the textEdit item.
*/
int QQuickTextEdit::lineCount() const
{
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Q_D(const QQuickTextEdit);
return d->lineCount;
}
/*!
\qmlproperty int QtQuick2::TextEdit::length
Returns the total number of plain text characters in the TextEdit item.
As this number doesn't include any formatting markup it may not be the same as the
length of the string returned by the \l text property.
This property can be faster than querying the length the \l text property as it doesn't
require any copying or conversion of the TextEdit's internal string data.
*/
int QQuickTextEdit::length() const
{
Q_D(const QQuickTextEdit);
// QTextDocument::characterCount() includes the terminating null character.
return qMax(0, d->document->characterCount() - 1);
}
/*!
\qmlproperty real QtQuick2::TextEdit::contentWidth
Returns the width of the text, including the width past the width
which is covered due to insufficient wrapping if \l wrapMode is set.
*/
qreal QQuickTextEdit::contentWidth() const
{
Q_D(const QQuickTextEdit);
return d->contentSize.width();
}
/*!
\qmlproperty real QtQuick2::TextEdit::contentHeight
Returns the height of the text, including the height past the height
that is covered if the text does not fit within the set height.
*/
qreal QQuickTextEdit::contentHeight() const
{
Q_D(const QQuickTextEdit);
return d->contentSize.height();
}
/*!
\qmlproperty url QtQuick2::TextEdit::baseUrl
This property specifies a base URL which is used to resolve relative URLs
within the text.
The default value is the url of the QML file instantiating the TextEdit item.
*/
QUrl QQuickTextEdit::baseUrl() const
{
Q_D(const QQuickTextEdit);
if (d->baseUrl.isEmpty()) {
if (QQmlContext *context = qmlContext(this))
const_cast<QQuickTextEditPrivate *>(d)->baseUrl = context->baseUrl();
}
return d->baseUrl;
}
void QQuickTextEdit::setBaseUrl(const QUrl &url)
{
Q_D(QQuickTextEdit);
if (baseUrl() != url) {
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d->baseUrl = url;
d->document->setBaseUrl(url, d->richText);
emit baseUrlChanged();
}
}
void QQuickTextEdit::resetBaseUrl()
{
if (QQmlContext *context = qmlContext(this))
setBaseUrl(context->baseUrl());
else
setBaseUrl(QUrl());
}
/*!
\qmlmethod rectangle QtQuick2::TextEdit::positionToRectangle(position)
Returns the rectangle at the given \a position in the text. The x, y,
and height properties correspond to the cursor that would describe
that position.
*/
QRectF QQuickTextEdit::positionToRectangle(int pos) const
{
Q_D(const QQuickTextEdit);
QTextCursor c(d->document);
c.setPosition(pos);
return d->control->cursorRect(c).translated(d->xoff, d->yoff);
}
/*!
\qmlmethod int QtQuick2::TextEdit::positionAt(int x, int y)
Returns the text position closest to pixel position (\a x, \a y).
Position 0 is before the first character, position 1 is after the first character
but before the second, and so on until position \l {text}.length, which is after all characters.
*/
int QQuickTextEdit::positionAt(qreal x, qreal y) const
{
Q_D(const QQuickTextEdit);
x -= d->xoff;
y -= d->yoff;
int r = d->document->documentLayout()->hitTest(QPointF(x, y), Qt::FuzzyHit);
#ifndef QT_NO_IM
QTextCursor cursor = d->control->textCursor();
if (r > cursor.position()) {
// The cursor position includes positions within the preedit text, but only positions in the
// same text block are offset so it is possible to get a position that is either part of the
// preedit or the next text block.
QTextLayout *layout = cursor.block().layout();
const int preeditLength = layout
? layout->preeditAreaText().length()
: 0;
if (preeditLength > 0
&& d->document->documentLayout()->blockBoundingRect(cursor.block()).contains(x, y)) {
r = r > cursor.position() + preeditLength
? r - preeditLength
: cursor.position();
}
}
#endif
return r;
}
/*!
\qmlmethod QtQuick2::TextEdit::moveCursorSelection(int position, SelectionMode mode = TextEdit.SelectCharacters)
841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910
Moves the cursor to \a position and updates the selection according to the optional \a mode
parameter. (To only move the cursor, set the \l cursorPosition property.)
When this method is called it additionally sets either the
selectionStart or the selectionEnd (whichever was at the previous cursor position)
to the specified position. This allows you to easily extend and contract the selected
text range.
The selection mode specifies whether the selection is updated on a per character or a per word
basis. If not specified the selection mode will default to TextEdit.SelectCharacters.
\list
\li TextEdit.SelectCharacters - Sets either the selectionStart or selectionEnd (whichever was at
the previous cursor position) to the specified position.
\li TextEdit.SelectWords - Sets the selectionStart and selectionEnd to include all
words between the specified position and the previous cursor position. Words partially in the
range are included.
\endlist
For example, take this sequence of calls:
\code
cursorPosition = 5
moveCursorSelection(9, TextEdit.SelectCharacters)
moveCursorSelection(7, TextEdit.SelectCharacters)
\endcode
This moves the cursor to position 5, extend the selection end from 5 to 9
and then retract the selection end from 9 to 7, leaving the text from position 5 to 7
selected (the 6th and 7th characters).
The same sequence with TextEdit.SelectWords will extend the selection start to a word boundary
before or on position 5 and extend the selection end to a word boundary on or past position 9.
*/
void QQuickTextEdit::moveCursorSelection(int pos)
{
//Note that this is the same as setCursorPosition but with the KeepAnchor flag set
Q_D(QQuickTextEdit);
QTextCursor cursor = d->control->textCursor();
if (cursor.position() == pos)
return;
cursor.setPosition(pos, QTextCursor::KeepAnchor);
d->control->setTextCursor(cursor);
}
void QQuickTextEdit::moveCursorSelection(int pos, SelectionMode mode)
{
Q_D(QQuickTextEdit);
QTextCursor cursor = d->control->textCursor();
if (cursor.position() == pos)
return;
if (mode == SelectCharacters) {
cursor.setPosition(pos, QTextCursor::KeepAnchor);
} else if (cursor.anchor() < pos || (cursor.anchor() == pos && cursor.position() < pos)) {
if (cursor.anchor() > cursor.position()) {
cursor.setPosition(cursor.anchor(), QTextCursor::MoveAnchor);
cursor.movePosition(QTextCursor::StartOfWord, QTextCursor::KeepAnchor);
if (cursor.position() == cursor.anchor())
cursor.movePosition(QTextCursor::PreviousWord, QTextCursor::MoveAnchor);
else
cursor.setPosition(cursor.position(), QTextCursor::MoveAnchor);
} else {
cursor.setPosition(cursor.anchor(), QTextCursor::MoveAnchor);
cursor.movePosition(QTextCursor::StartOfWord, QTextCursor::MoveAnchor);
}
cursor.setPosition(pos, QTextCursor::KeepAnchor);
cursor.movePosition(QTextCursor::StartOfWord, QTextCursor::KeepAnchor);
if (cursor.position() != pos)
cursor.movePosition(QTextCursor::EndOfWord, QTextCursor::KeepAnchor);
911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980
} else if (cursor.anchor() > pos || (cursor.anchor() == pos && cursor.position() > pos)) {
if (cursor.anchor() < cursor.position()) {
cursor.setPosition(cursor.anchor(), QTextCursor::MoveAnchor);
cursor.movePosition(QTextCursor::EndOfWord, QTextCursor::MoveAnchor);
} else {
cursor.setPosition(cursor.anchor(), QTextCursor::MoveAnchor);
cursor.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor);
cursor.movePosition(QTextCursor::EndOfWord, QTextCursor::KeepAnchor);
if (cursor.position() != cursor.anchor()) {
cursor.setPosition(cursor.anchor(), QTextCursor::MoveAnchor);
cursor.movePosition(QTextCursor::EndOfWord, QTextCursor::MoveAnchor);
}
}
cursor.setPosition(pos, QTextCursor::KeepAnchor);
cursor.movePosition(QTextCursor::EndOfWord, QTextCursor::KeepAnchor);
if (cursor.position() != pos) {
cursor.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor);
cursor.movePosition(QTextCursor::StartOfWord, QTextCursor::KeepAnchor);
}
}
d->control->setTextCursor(cursor);
}
/*!
\qmlproperty bool QtQuick2::TextEdit::cursorVisible
If true the text edit shows a cursor.
This property is set and unset when the text edit gets active focus, but it can also
be set directly (useful, for example, if a KeyProxy might forward keys to it).
*/
bool QQuickTextEdit::isCursorVisible() const
{
Q_D(const QQuickTextEdit);
return d->cursorVisible;
}
void QQuickTextEdit::setCursorVisible(bool on)
{
Q_D(QQuickTextEdit);
if (d->cursorVisible == on)
return;
d->cursorVisible = on;
if (on && isComponentComplete())
QQuickTextUtil::createCursor(d);
if (!on && !d->persistentSelection)
d->control->setCursorIsFocusIndicator(true);
d->control->setCursorVisible(on);
emit cursorVisibleChanged(d->cursorVisible);
}
/*!
\qmlproperty int QtQuick2::TextEdit::cursorPosition
The position of the cursor in the TextEdit.
*/
int QQuickTextEdit::cursorPosition() const
{
Q_D(const QQuickTextEdit);
return d->control->textCursor().position();
}
void QQuickTextEdit::setCursorPosition(int pos)
{
Q_D(QQuickTextEdit);
if (pos < 0 || pos >= d->document->characterCount()) // characterCount includes the terminating null.
return;
QTextCursor cursor = d->control->textCursor();
if (cursor.position() == pos && cursor.anchor() == pos)
return;
cursor.setPosition(pos);
981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050
d->control->setTextCursor(cursor);
d->control->updateCursorRectangle(true);
}
/*!
\qmlproperty Component QtQuick2::TextEdit::cursorDelegate
The delegate for the cursor in the TextEdit.
If you set a cursorDelegate for a TextEdit, this delegate will be used for
drawing the cursor instead of the standard cursor. An instance of the
delegate will be created and managed by the text edit when a cursor is
needed, and the x and y properties of delegate instance will be set so as
to be one pixel before the top left of the current character.
Note that the root item of the delegate component must be a QQuickItem or
QQuickItem derived item.
*/
QQmlComponent* QQuickTextEdit::cursorDelegate() const
{
Q_D(const QQuickTextEdit);
return d->cursorComponent;
}
void QQuickTextEdit::setCursorDelegate(QQmlComponent* c)
{
Q_D(QQuickTextEdit);
QQuickTextUtil::setCursorDelegate(d, c);
}
void QQuickTextEdit::createCursor()
{
Q_D(QQuickTextEdit);
d->cursorPending = true;
QQuickTextUtil::createCursor(d);
}
/*!
\qmlproperty int QtQuick2::TextEdit::selectionStart
The cursor position before the first character in the current selection.
This property is read-only. To change the selection, use select(start,end),
selectAll(), or selectWord().
\sa selectionEnd, cursorPosition, selectedText
*/
int QQuickTextEdit::selectionStart() const
{
Q_D(const QQuickTextEdit);
return d->control->textCursor().selectionStart();
}
/*!
\qmlproperty int QtQuick2::TextEdit::selectionEnd
The cursor position after the last character in the current selection.
This property is read-only. To change the selection, use select(start,end),
selectAll(), or selectWord().
\sa selectionStart, cursorPosition, selectedText
*/
int QQuickTextEdit::selectionEnd() const
{
Q_D(const QQuickTextEdit);
return d->control->textCursor().selectionEnd();
}
/*!
\qmlproperty string QtQuick2::TextEdit::selectedText
1051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120
This read-only property provides the text currently selected in the
text edit.
It is equivalent to the following snippet, but is faster and easier
to use.
\code
//myTextEdit is the id of the TextEdit
myTextEdit.text.toString().substring(myTextEdit.selectionStart,
myTextEdit.selectionEnd);
\endcode
*/
QString QQuickTextEdit::selectedText() const
{
Q_D(const QQuickTextEdit);
#ifndef QT_NO_TEXTHTMLPARSER
return d->richText
? d->control->textCursor().selectedText()
: d->control->textCursor().selection().toPlainText();
#else
return d->control->textCursor().selection().toPlainText();
#endif
}
/*!
\qmlproperty bool QtQuick2::TextEdit::activeFocusOnPress
Whether the TextEdit should gain active focus on a mouse press. By default this is
set to true.
*/
bool QQuickTextEdit::focusOnPress() const
{
Q_D(const QQuickTextEdit);
return d->focusOnPress;
}
void QQuickTextEdit::setFocusOnPress(bool on)
{
Q_D(QQuickTextEdit);
if (d->focusOnPress == on)
return;
d->focusOnPress = on;
emit activeFocusOnPressChanged(d->focusOnPress);
}
/*!
\qmlproperty bool QtQuick2::TextEdit::persistentSelection
Whether the TextEdit should keep the selection visible when it loses active focus to another
item in the scene. By default this is set to false.
*/
bool QQuickTextEdit::persistentSelection() const
{
Q_D(const QQuickTextEdit);
return d->persistentSelection;
}
void QQuickTextEdit::setPersistentSelection(bool on)
{
Q_D(QQuickTextEdit);
if (d->persistentSelection == on)
return;
d->persistentSelection = on;
emit persistentSelectionChanged(d->persistentSelection);
}
/*!
\qmlproperty real QtQuick2::TextEdit::textMargin
The margin, in pixels, around the text in the TextEdit.
1121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190
*/
qreal QQuickTextEdit::textMargin() const
{
Q_D(const QQuickTextEdit);
return d->textMargin;
}
void QQuickTextEdit::setTextMargin(qreal margin)
{
Q_D(QQuickTextEdit);
if (d->textMargin == margin)
return;
d->textMargin = margin;
d->document->setDocumentMargin(d->textMargin);
emit textMarginChanged(d->textMargin);
}
/*!
\qmlproperty enumeration QtQuick2::TextEdit::inputMethodHints
Provides hints to the input method about the expected content of the text edit and how it
should operate.
The value is a bit-wise combination of flags or Qt.ImhNone if no hints are set.
Flags that alter behaviour are:
\list
\li Qt.ImhHiddenText - Characters should be hidden, as is typically used when entering passwords.
\li Qt.ImhSensitiveData - Typed text should not be stored by the active input method
in any persistent storage like predictive user dictionary.
\li Qt.ImhNoAutoUppercase - The input method should not try to automatically switch to upper case
when a sentence ends.
\li Qt.ImhPreferNumbers - Numbers are preferred (but not required).
\li Qt.ImhPreferUppercase - Upper case letters are preferred (but not required).
\li Qt.ImhPreferLowercase - Lower case letters are preferred (but not required).
\li Qt.ImhNoPredictiveText - Do not use predictive text (i.e. dictionary lookup) while typing.
\li Qt.ImhDate - The text editor functions as a date field.
\li Qt.ImhTime - The text editor functions as a time field.
\endlist
Flags that restrict input (exclusive flags) are:
\list
\li Qt.ImhDigitsOnly - Only digits are allowed.
\li Qt.ImhFormattedNumbersOnly - Only number input is allowed. This includes decimal point and minus sign.
\li Qt.ImhUppercaseOnly - Only upper case letter input is allowed.
\li Qt.ImhLowercaseOnly - Only lower case letter input is allowed.
\li Qt.ImhDialableCharactersOnly - Only characters suitable for phone dialing are allowed.
\li Qt.ImhEmailCharactersOnly - Only characters suitable for email addresses are allowed.
\li Qt.ImhUrlCharactersOnly - Only characters suitable for URLs are allowed.
\endlist
Masks:
\list
\li Qt.ImhExclusiveInputMask - This mask yields nonzero if any of the exclusive flags are used.
\endlist
*/
#ifndef QT_NO_IM
Qt::InputMethodHints QQuickTextEdit::inputMethodHints() const
{
Q_D(const QQuickTextEdit);
return d->inputMethodHints;
}
void QQuickTextEdit::setInputMethodHints(Qt::InputMethodHints hints)
{
1191119211931194119511961197119811991200120112021203120412051206120712081209121012111212121312141215121612171218121912201221122212231224122512261227122812291230123112321233123412351236123712381239124012411242124312441245124612471248124912501251125212531254125512561257125812591260
Q_D(QQuickTextEdit);
if (hints == d->inputMethodHints)
return;
d->inputMethodHints = hints;
updateInputMethod(Qt::ImHints);
emit inputMethodHintsChanged();
}
#endif // QT_NO_IM
void QQuickTextEdit::geometryChanged(const QRectF &newGeometry,
const QRectF &oldGeometry)
{
Q_D(QQuickTextEdit);
if (newGeometry.width() != oldGeometry.width() && widthValid() && !d->inLayout) {
updateSize();
moveCursorDelegate();
}
QQuickImplicitSizeItem::geometryChanged(newGeometry, oldGeometry);
}
/*!
Ensures any delayed caching or data loading the class
needs to performed is complete.
*/
void QQuickTextEdit::componentComplete()
{
Q_D(QQuickTextEdit);
QQuickImplicitSizeItem::componentComplete();
d->document->setBaseUrl(baseUrl(), d->richText);
#ifndef QT_NO_TEXTHTML_PARSER
if (d->richText)
d->control->setHtml(d->text);
else
#endif
if (!d->text.isEmpty())
d->control->setPlainText(d->text);
if (d->dirty) {
d->determineHorizontalAlignment();
d->updateDefaultTextOption();
updateSize();
d->dirty = false;
}
if (d->cursorComponent && isCursorVisible())
QQuickTextUtil::createCursor(d);
}
/*!
\qmlproperty bool QtQuick2::TextEdit::selectByKeyboard
\since QtQuick 2.1
Defaults to true when the editor is editable, and false
when read-only.
If true, the user can use the keyboard to select text
even if the editor is read-only. If false, the user
cannot use the keyboard to select text even if the
editor is editable.
\sa readOnly
*/
bool QQuickTextEdit::selectByKeyboard() const
{
Q_D(const QQuickTextEdit);
if (d->selectByKeyboardSet)
return d->selectByKeyboard;
1261126212631264126512661267126812691270127112721273127412751276127712781279128012811282128312841285128612871288128912901291129212931294129512961297129812991300130113021303130413051306130713081309131013111312131313141315131613171318131913201321132213231324132513261327132813291330
return !isReadOnly();
}
void QQuickTextEdit::setSelectByKeyboard(bool on)
{
Q_D(QQuickTextEdit);
bool was = selectByKeyboard();
d->selectByKeyboardSet = true;
if (was != on) {
d->selectByKeyboard = on;
if (on)
d->control->setTextInteractionFlags(d->control->textInteractionFlags() | Qt::TextSelectableByKeyboard);
else
d->control->setTextInteractionFlags(d->control->textInteractionFlags() & ~Qt::TextSelectableByKeyboard);
emit selectByKeyboardChanged(on);
}
}
/*!
\qmlproperty bool QtQuick2::TextEdit::selectByMouse
Defaults to false.
If true, the user can use the mouse to select text in some
platform-specific way. Note that for some platforms this may
not be an appropriate interaction (eg. may conflict with how
the text needs to behave inside a Flickable.
*/
bool QQuickTextEdit::selectByMouse() const
{
Q_D(const QQuickTextEdit);
return d->selectByMouse;
}
void QQuickTextEdit::setSelectByMouse(bool on)
{
Q_D(QQuickTextEdit);
if (d->selectByMouse != on) {
d->selectByMouse = on;
setKeepMouseGrab(on);
if (on)
d->control->setTextInteractionFlags(d->control->textInteractionFlags() | Qt::TextSelectableByMouse);
else
d->control->setTextInteractionFlags(d->control->textInteractionFlags() & ~Qt::TextSelectableByMouse);
emit selectByMouseChanged(on);
}
}
/*!
\qmlproperty enumeration QtQuick2::TextEdit::mouseSelectionMode
Specifies how text should be selected using a mouse.
\list
\li TextEdit.SelectCharacters - The selection is updated with individual characters. (Default)
\li TextEdit.SelectWords - The selection is updated with whole words.
\endlist
This property only applies when \l selectByMouse is true.
*/
QQuickTextEdit::SelectionMode QQuickTextEdit::mouseSelectionMode() const
{
Q_D(const QQuickTextEdit);
return d->mouseSelectionMode;
}
void QQuickTextEdit::setMouseSelectionMode(SelectionMode mode)
{
Q_D(QQuickTextEdit);
if (d->mouseSelectionMode != mode) {
1331133213331334133513361337133813391340134113421343134413451346134713481349135013511352135313541355135613571358135913601361136213631364136513661367136813691370137113721373137413751376137713781379138013811382138313841385138613871388138913901391139213931394139513961397139813991400
d->mouseSelectionMode = mode;
d->control->setWordSelectionEnabled(mode == SelectWords);
emit mouseSelectionModeChanged(mode);
}
}
/*!
\qmlproperty bool QtQuick2::TextEdit::readOnly
Whether the user can interact with the TextEdit item. If this
property is set to true the text cannot be edited by user interaction.
By default this property is false.
*/
void QQuickTextEdit::setReadOnly(bool r)
{
Q_D(QQuickTextEdit);
if (r == isReadOnly())
return;
#ifndef QT_NO_IM
setFlag(QQuickItem::ItemAcceptsInputMethod, !r);
#endif
Qt::TextInteractionFlags flags = Qt::LinksAccessibleByMouse;
if (d->selectByMouse)
flags = flags | Qt::TextSelectableByMouse;
if (d->selectByKeyboardSet && d->selectByKeyboard)
flags = flags | Qt::TextSelectableByKeyboard;
else if (!d->selectByKeyboardSet && !r)
flags = flags | Qt::TextSelectableByKeyboard;
if (!r)
flags = flags | Qt::TextEditable;
d->control->setTextInteractionFlags(flags);
if (!r)
d->control->moveCursor(QTextCursor::End);
#ifndef QT_NO_IM
updateInputMethod(Qt::ImEnabled);
#endif
q_canPasteChanged();
emit readOnlyChanged(r);
if (!d->selectByKeyboardSet)
emit selectByKeyboardChanged(!r);
}
bool QQuickTextEdit::isReadOnly() const
{
Q_D(const QQuickTextEdit);
return !(d->control->textInteractionFlags() & Qt::TextEditable);
}
/*!
\qmlproperty rectangle QtQuick2::TextEdit::cursorRectangle
The rectangle where the standard text cursor is rendered
within the text edit. Read-only.
The position and height of a custom cursorDelegate are updated to follow the cursorRectangle
automatically when it changes. The width of the delegate is unaffected by changes in the
cursor rectangle.
*/
QRectF QQuickTextEdit::cursorRectangle() const
{
Q_D(const QQuickTextEdit);
return d->control->cursorRect().translated(d->xoff, d->yoff);
}
bool QQuickTextEdit::event(QEvent *event)
{
Q_D(QQuickTextEdit);
1401140214031404140514061407140814091410141114121413141414151416141714181419142014211422142314241425142614271428142914301431143214331434143514361437143814391440144114421443144414451446144714481449145014511452145314541455145614571458145914601461146214631464146514661467146814691470
if (event->type() == QEvent::ShortcutOverride) {
d->control->processEvent(event, QPointF(-d->xoff, -d->yoff));
return event->isAccepted();
}
return QQuickImplicitSizeItem::event(event);
}
/*!
\overload
Handles the given key \a event.
*/
void QQuickTextEdit::keyPressEvent(QKeyEvent *event)
{
Q_D(QQuickTextEdit);
d->control->processEvent(event, QPointF(-d->xoff, -d->yoff));
if (!event->isAccepted())
QQuickImplicitSizeItem::keyPressEvent(event);
}
/*!
\overload
Handles the given key \a event.
*/
void QQuickTextEdit::keyReleaseEvent(QKeyEvent *event)
{
Q_D(QQuickTextEdit);
d->control->processEvent(event, QPointF(-d->xoff, -d->yoff));
if (!event->isAccepted())
QQuickImplicitSizeItem::keyReleaseEvent(event);
}
/*!
\qmlmethod QtQuick2::TextEdit::deselect()
Removes active text selection.
*/
void QQuickTextEdit::deselect()
{
Q_D(QQuickTextEdit);
QTextCursor c = d->control->textCursor();
c.clearSelection();
d->control->setTextCursor(c);
}
/*!
\qmlmethod QtQuick2::TextEdit::selectAll()
Causes all text to be selected.
*/
void QQuickTextEdit::selectAll()
{
Q_D(QQuickTextEdit);
d->control->selectAll();
}
/*!
\qmlmethod QtQuick2::TextEdit::selectWord()
Causes the word closest to the current cursor position to be selected.
*/
void QQuickTextEdit::selectWord()
{
Q_D(QQuickTextEdit);
QTextCursor c = d->control->textCursor();
c.select(QTextCursor::WordUnderCursor);
d->control->setTextCursor(c);
}
/*!
\qmlmethod QtQuick2::TextEdit::select(int start, int end)
1471147214731474147514761477147814791480148114821483148414851486148714881489149014911492149314941495149614971498149915001501150215031504150515061507150815091510151115121513151415151516151715181519152015211522152315241525152615271528152915301531153215331534153515361537153815391540
Causes the text from \a start to \a end to be selected.
If either start or end is out of range, the selection is not changed.
After calling this, selectionStart will become the lesser
and selectionEnd will become the greater (regardless of the order passed
to this method).
\sa selectionStart, selectionEnd
*/
void QQuickTextEdit::select(int start, int end)
{
Q_D(QQuickTextEdit);
if (start < 0 || end < 0 || start >= d->document->characterCount() || end >= d->document->characterCount())
return;
QTextCursor cursor = d->control->textCursor();
cursor.beginEditBlock();
cursor.setPosition(start, QTextCursor::MoveAnchor);
cursor.setPosition(end, QTextCursor::KeepAnchor);
cursor.endEditBlock();
d->control->setTextCursor(cursor);
// QTBUG-11100
updateSelectionMarkers();
}
/*!
\qmlmethod QtQuick2::TextEdit::isRightToLeft(int start, int end)
Returns true if the natural reading direction of the editor text
found between positions \a start and \a end is right to left.
*/
bool QQuickTextEdit::isRightToLeft(int start, int end)
{
if (start > end) {
qmlInfo(this) << "isRightToLeft(start, end) called with the end property being smaller than the start.";
return false;
} else {
return getText(start, end).isRightToLeft();
}
}
#ifndef QT_NO_CLIPBOARD
/*!
\qmlmethod QtQuick2::TextEdit::cut()
Moves the currently selected text to the system clipboard.
*/
void QQuickTextEdit::cut()
{
Q_D(QQuickTextEdit);
d->control->cut();
}
/*!
\qmlmethod QtQuick2::TextEdit::copy()
Copies the currently selected text to the system clipboard.
*/
void QQuickTextEdit::copy()
{
Q_D(QQuickTextEdit);
d->control->copy();
}
/*!
\qmlmethod QtQuick2::TextEdit::paste()
Replaces the currently selected text by the contents of the system clipboard.
1541154215431544154515461547154815491550155115521553155415551556155715581559156015611562156315641565156615671568156915701571157215731574157515761577157815791580158115821583158415851586158715881589159015911592159315941595159615971598159916001601160216031604160516061607160816091610
*/
void QQuickTextEdit::paste()
{
Q_D(QQuickTextEdit);
d->control->paste();
}
#endif // QT_NO_CLIPBOARD
/*!
\qmlmethod QtQuick2::TextEdit::undo()
Undoes the last operation if undo is \l {canUndo}{available}. Deselects any
current selection, and updates the selection start to the current cursor
position.
*/
void QQuickTextEdit::undo()
{
Q_D(QQuickTextEdit);
d->control->undo();
}
/*!
\qmlmethod QtQuick2::TextEdit::redo()
Redoes the last operation if redo is \l {canRedo}{available}.
*/
void QQuickTextEdit::redo()
{
Q_D(QQuickTextEdit);
d->control->redo();
}
/*!
\overload
Handles the given mouse \a event.
*/
void QQuickTextEdit::mousePressEvent(QMouseEvent *event)
{
Q_D(QQuickTextEdit);
d->control->processEvent(event, QPointF(-d->xoff, -d->yoff));
if (d->focusOnPress){
bool hadActiveFocus = hasActiveFocus();
forceActiveFocus(Qt::MouseFocusReason);
// re-open input panel on press if already focused
#ifndef QT_NO_IM
if (hasActiveFocus() && hadActiveFocus && !isReadOnly())
qGuiApp->inputMethod()->show();
#endif
}
if (!event->isAccepted())
QQuickImplicitSizeItem::mousePressEvent(event);
}
/*!
\overload
Handles the given mouse \a event.
*/
void QQuickTextEdit::mouseReleaseEvent(QMouseEvent *event)
{
Q_D(QQuickTextEdit);
d->control->processEvent(event, QPointF(-d->xoff, -d->yoff));
if (!event->isAccepted())
QQuickImplicitSizeItem::mouseReleaseEvent(event);
}
/*!
1611161216131614161516161617161816191620162116221623162416251626162716281629163016311632163316341635163616371638163916401641164216431644164516461647164816491650165116521653165416551656165716581659166016611662166316641665166616671668166916701671167216731674167516761677167816791680
\overload
Handles the given mouse \a event.
*/
void QQuickTextEdit::mouseDoubleClickEvent(QMouseEvent *event)
{
Q_D(QQuickTextEdit);
d->control->processEvent(event, QPointF(-d->xoff, -d->yoff));
if (!event->isAccepted())
QQuickImplicitSizeItem::mouseDoubleClickEvent(event);
}
/*!
\overload
Handles the given mouse \a event.
*/
void QQuickTextEdit::mouseMoveEvent(QMouseEvent *event)
{
Q_D(QQuickTextEdit);
d->control->processEvent(event, QPointF(-d->xoff, -d->yoff));
if (!event->isAccepted())
QQuickImplicitSizeItem::mouseMoveEvent(event);
}
#ifndef QT_NO_IM
/*!
\overload
Handles the given input method \a event.
*/
void QQuickTextEdit::inputMethodEvent(QInputMethodEvent *event)
{
Q_D(QQuickTextEdit);
const bool wasComposing = isInputMethodComposing();
d->control->processEvent(event, QPointF(-d->xoff, -d->yoff));
setCursorVisible(d->control->cursorVisible());
if (wasComposing != isInputMethodComposing())
emit inputMethodComposingChanged();
}
/*!
\overload
Returns the value of the given \a property.
*/
QVariant QQuickTextEdit::inputMethodQuery(Qt::InputMethodQuery property) const
{
Q_D(const QQuickTextEdit);
QVariant v;
switch (property) {
case Qt::ImEnabled:
v = (bool)(flags() & ItemAcceptsInputMethod);
break;
case Qt::ImHints:
v = (int)d->effectiveInputMethodHints();
break;
default:
v = d->control->inputMethodQuery(property);
break;
}
return v;
}
#endif // QT_NO_IM
void QQuickTextEdit::triggerPreprocess()
{
Q_D(QQuickTextEdit);
if (d->updateType == QQuickTextEditPrivate::UpdateNone)
d->updateType = QQuickTextEditPrivate::UpdateOnlyPreprocess;
update();
}
1681168216831684168516861687168816891690169116921693169416951696169716981699170017011702170317041705170617071708170917101711171217131714171517161717171817191720172117221723172417251726172717281729173017311732173317341735173617371738173917401741174217431744174517461747174817491750
QSGNode *QQuickTextEdit::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *updatePaintNodeData)
{
Q_UNUSED(updatePaintNodeData);
Q_D(QQuickTextEdit);
if (d->updateType != QQuickTextEditPrivate::UpdatePaintNode && oldNode != 0) {
// Update done in preprocess() in the nodes
d->updateType = QQuickTextEditPrivate::UpdateNone;
return oldNode;
}
d->updateType = QQuickTextEditPrivate::UpdateNone;
QSGNode *currentNode = oldNode;
if (oldNode == 0 || d->documentDirty) {
d->documentDirty = false;
QQuickTextNode *node = 0;
if (oldNode == 0) {
node = new QQuickTextNode(QQuickItemPrivate::get(this)->sceneGraphContext(), this);
currentNode = node;
} else {
node = static_cast<QQuickTextNode *>(oldNode);
}
node->setUseNativeRenderer(d->renderType == NativeRendering);
node->deleteContent();
node->setMatrix(QMatrix4x4());
node->addTextDocument(QPointF(d->xoff, d->yoff), d->document, d->color, QQuickText::Normal, QColor(),
QColor(), d->selectionColor, d->selectedTextColor, selectionStart(),
selectionEnd() - 1); // selectionEnd() returns first char after
// selection
}
if (d->cursorComponent == 0 && !isReadOnly()) {
QQuickTextNode *node = static_cast<QQuickTextNode *>(currentNode);
QColor color = (!d->cursorVisible || !d->control->cursorOn())
? QColor(0, 0, 0, 0)
: d->color;
if (node->cursorNode() == 0) {
node->setCursor(cursorRectangle(), color);
} else {
node->cursorNode()->setRect(cursorRectangle());
node->cursorNode()->setColor(color);
}
}
return currentNode;
}
/*!
\qmlproperty bool QtQuick2::TextEdit::canPaste
Returns true if the TextEdit is writable and the content of the clipboard is
suitable for pasting into the TextEdit.
*/
bool QQuickTextEdit::canPaste() const
{
Q_D(const QQuickTextEdit);
if (!d->canPasteValid) {
const_cast<QQuickTextEditPrivate *>(d)->canPaste = d->control->canPaste();
const_cast<QQuickTextEditPrivate *>(d)->canPasteValid = true;
}
return d->canPaste;
}
1751175217531754175517561757175817591760176117621763176417651766176717681769177017711772177317741775177617771778177917801781178217831784178517861787178817891790179117921793179417951796179717981799180018011802180318041805180618071808180918101811181218131814181518161817181818191820
/*!
\qmlproperty bool QtQuick2::TextEdit::canUndo
Returns true if the TextEdit is writable and there are previous operations
that can be undone.
*/
bool QQuickTextEdit::canUndo() const
{
Q_D(const QQuickTextEdit);
return d->document->isUndoAvailable();
}
/*!
\qmlproperty bool QtQuick2::TextEdit::canRedo
Returns true if the TextEdit is writable and there are \l {undo}{undone}
operations that can be redone.
*/
bool QQuickTextEdit::canRedo() const
{
Q_D(const QQuickTextEdit);
return d->document->isRedoAvailable();
}
#ifndef QT_NO_IM
/*!
\qmlproperty bool QtQuick2::TextEdit::inputMethodComposing
This property holds whether the TextEdit has partial text input from an
input method.
While it is composing an input method may rely on mouse or key events from
the TextEdit to edit or commit the partial text. This property can be used
to determine when to disable events handlers that may interfere with the
correct operation of an input method.
*/
bool QQuickTextEdit::isInputMethodComposing() const
{
Q_D(const QQuickTextEdit);
return d->control->hasImState();
}
#endif // QT_NO_IM
void QQuickTextEditPrivate::init()
{
Q_Q(QQuickTextEdit);
#ifndef QT_NO_CLIPBOARD
if (QGuiApplication::clipboard()->supportsSelection())
q->setAcceptedMouseButtons(Qt::LeftButton | Qt::MiddleButton);
else
#endif
q->setAcceptedMouseButtons(Qt::LeftButton);
#ifndef QT_NO_IM
q->setFlag(QQuickItem::ItemAcceptsInputMethod);
#endif
q->setFlag(QQuickItem::ItemHasContents);
document = new QQuickTextDocumentWithImageResources(q);
control = new QQuickTextControl(document, q);
control->setTextInteractionFlags(Qt::LinksAccessibleByMouse | Qt::TextSelectableByKeyboard | Qt::TextEditable);
control->setAcceptRichText(false);
control->setCursorIsFocusIndicator(true);
1821182218231824182518261827182818291830183118321833183418351836183718381839184018411842184318441845184618471848184918501851185218531854185518561857185818591860186118621863186418651866186718681869187018711872187318741875187618771878187918801881188218831884188518861887188818891890
qmlobject_connect(control, QQuickTextControl, SIGNAL(updateRequest()), q, QQuickTextEdit, SLOT(updateDocument()));
qmlobject_connect(control, QQuickTextControl, SIGNAL(updateCursorRequest()), q, QQuickTextEdit, SLOT(updateCursor()));
qmlobject_connect(control, QQuickTextControl, SIGNAL(textChanged()), q, QQuickTextEdit, SLOT(q_textChanged()));
qmlobject_connect(control, QQuickTextControl, SIGNAL(selectionChanged()), q, QQuickTextEdit, SIGNAL(selectedTextChanged()));
qmlobject_connect(control, QQuickTextControl, SIGNAL(selectionChanged()), q, QQuickTextEdit, SLOT(updateSelectionMarkers()));
qmlobject_connect(control, QQuickTextControl, SIGNAL(cursorPositionChanged()), q, QQuickTextEdit, SLOT(updateSelectionMarkers()));
qmlobject_connect(control, QQuickTextControl, SIGNAL(cursorPositionChanged()), q, QQuickTextEdit, SIGNAL(cursorPositionChanged()));
qmlobject_connect(control, QQuickTextControl, SIGNAL(cursorRectangleChanged()), q, QQuickTextEdit, SLOT(moveCursorDelegate()));
qmlobject_connect(control, QQuickTextControl, SIGNAL(linkActivated(QString)), q, QQuickTextEdit, SIGNAL(linkActivated(QString)));
#ifndef QT_NO_CLIPBOARD
qmlobject_connect(QGuiApplication::clipboard(), QClipboard, SIGNAL(dataChanged()), q, QQuickTextEdit, SLOT(q_canPasteChanged()));
#endif
qmlobject_connect(document, QQuickTextDocumentWithImageResources, SIGNAL(undoAvailable(bool)), q, QQuickTextEdit, SIGNAL(canUndoChanged()));
qmlobject_connect(document, QQuickTextDocumentWithImageResources, SIGNAL(redoAvailable(bool)), q, QQuickTextEdit, SIGNAL(canRedoChanged()));
qmlobject_connect(document, QQuickTextDocumentWithImageResources, SIGNAL(imagesLoaded()), q, QQuickTextEdit, SLOT(updateSize()));
document->setDefaultFont(font);
document->setDocumentMargin(textMargin);
document->setUndoRedoEnabled(false); // flush undo buffer.
document->setUndoRedoEnabled(true);
updateDefaultTextOption();
}
void QQuickTextEdit::q_textChanged()
{
Q_D(QQuickTextEdit);
d->textCached = false;
for (QTextBlock it = d->document->begin(); it != d->document->end(); it = it.next()) {
d->contentDirection = d->textDirection(it.text());
if (d->contentDirection != Qt::LayoutDirectionAuto)
break;
}
d->determineHorizontalAlignment();
d->updateDefaultTextOption();
updateSize();
updateTotalLines();
emit textChanged();
}
void QQuickTextEdit::moveCursorDelegate()
{
Q_D(QQuickTextEdit);
#ifndef QT_NO_IM
updateInputMethod();
#endif
emit cursorRectangleChanged();
if (!d->cursorItem)
return;
QRectF cursorRect = cursorRectangle();
d->cursorItem->setX(cursorRect.x());
d->cursorItem->setY(cursorRect.y());
}
void QQuickTextEdit::updateSelectionMarkers()
{
Q_D(QQuickTextEdit);
if (d->lastSelectionStart != d->control->textCursor().selectionStart()) {
d->lastSelectionStart = d->control->textCursor().selectionStart();
emit selectionStartChanged();
}
if (d->lastSelectionEnd != d->control->textCursor().selectionEnd()) {
d->lastSelectionEnd = d->control->textCursor().selectionEnd();
emit selectionEndChanged();
}
}
QRectF QQuickTextEdit::boundingRect() const
{
Q_D(const QQuickTextEdit);
QRectF r(
1891189218931894189518961897189818991900190119021903190419051906190719081909191019111912191319141915191619171918191919201921192219231924192519261927192819291930193119321933193419351936193719381939194019411942194319441945194619471948194919501951195219531954195519561957195819591960
QQuickTextUtil::alignedX(d->contentSize.width(), width(), effectiveHAlign()),
d->yoff,
d->contentSize.width(),
d->contentSize.height());
int cursorWidth = 1;
if (d->cursorItem)
cursorWidth = 0;
else if (!d->document->isEmpty())
cursorWidth += 3;// ### Need a better way of accounting for space between char and cursor
// Could include font max left/right bearings to either side of rectangle.
r.setRight(r.right() + cursorWidth);
return r;
}
QRectF QQuickTextEdit::clipRect() const
{
Q_D(const QQuickTextEdit);
QRectF r = QQuickImplicitSizeItem::clipRect();
int cursorWidth = 1;
if (d->cursorItem)
cursorWidth = d->cursorItem->width();
if (!d->document->isEmpty())
cursorWidth += 3;// ### Need a better way of accounting for space between char and cursor
// Could include font max left/right bearings to either side of rectangle.
r.setRight(r.right() + cursorWidth);
return r;
}
qreal QQuickTextEditPrivate::getImplicitWidth() const
{
Q_Q(const QQuickTextEdit);
if (!requireImplicitWidth) {
// We don't calculate implicitWidth unless it is required.
// We need to force a size update now to ensure implicitWidth is calculated
const_cast<QQuickTextEditPrivate*>(this)->requireImplicitWidth = true;
const_cast<QQuickTextEdit*>(q)->updateSize();
}
return implicitWidth;
}
//### we should perhaps be a bit smarter here -- depending on what has changed, we shouldn't
// need to do all the calculations each time
void QQuickTextEdit::updateSize()
{
Q_D(QQuickTextEdit);
if (isComponentComplete()) {
qreal naturalWidth = d->implicitWidth;
// ### assumes that if the width is set, the text will fill to edges
// ### (unless wrap is false, then clipping will occur)
if (widthValid()) {
if (!d->requireImplicitWidth) {
emit implicitWidthChanged();
// if the implicitWidth is used, then updateSize() has already been called (recursively)
if (d->requireImplicitWidth)
return;
}
if (d->requireImplicitWidth) {
d->document->setTextWidth(-1);
naturalWidth = d->document->idealWidth();
const bool wasInLayout = d->inLayout;
d->inLayout = true;
setImplicitWidth(naturalWidth);
d->inLayout = wasInLayout;
if (d->inLayout) // probably the result of a binding loop, but by letting it
1961196219631964196519661967196819691970197119721973197419751976197719781979198019811982198319841985198619871988198919901991199219931994199519961997199819992000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024202520262027202820292030
return; // get this far we'll get a warning to that effect.
}
if (d->document->textWidth() != width())
d->document->setTextWidth(width());
} else {
d->document->setTextWidth(-1);
}
//### need to confirm cost of always setting these
qreal newWidth = d->document->idealWidth();
if ((!widthValid() || d->wrapMode == NoWrap) && d->document->textWidth() != newWidth)
d->document->setTextWidth(newWidth); // ### Text does not align if width is not set or the idealWidth exceeds the textWidth (QTextDoc bug)
// ### Setting the implicitWidth triggers another updateSize(), and unless there are bindings nothing has changed.
qreal iWidth = -1;
if (!widthValid() && !d->requireImplicitWidth)
iWidth = newWidth;
QFontMetricsF fm(d->font);
qreal newHeight = d->document->isEmpty() ? qCeil(fm.height()) : d->document->size().height();
if (iWidth > -1)
setImplicitSize(iWidth, newHeight);
else
setImplicitHeight(newHeight);
d->xoff = QQuickTextUtil::alignedX(d->document->size().width(), width(), effectiveHAlign());
d->yoff = QQuickTextUtil::alignedY(d->document->size().height(), height(), d->vAlign);
setBaselineOffset(fm.ascent() + d->yoff + d->textMargin);
QSizeF size(newWidth, newHeight);
if (d->contentSize != size) {
d->contentSize = size;
emit contentSizeChanged();
}
} else {
d->dirty = true;
}
updateDocument();
}
void QQuickTextEdit::updateDocument()
{
Q_D(QQuickTextEdit);
d->documentDirty = true;
if (isComponentComplete()) {
d->updateType = QQuickTextEditPrivate::UpdatePaintNode;
update();
}
}
void QQuickTextEdit::updateCursor()
{
Q_D(QQuickTextEdit);
if (isComponentComplete()) {
d->updateType = QQuickTextEditPrivate::UpdatePaintNode;
update();
}
}
void QQuickTextEdit::q_updateAlignment()
{
Q_D(QQuickTextEdit);
if (d->determineHorizontalAlignment()) {
d->updateDefaultTextOption();
d->xoff = QQuickTextUtil::alignedX(d->document->size().width(), width(), effectiveHAlign());
moveCursorDelegate();
}
}
2031203220332034203520362037203820392040204120422043204420452046204720482049205020512052205320542055205620572058205920602061206220632064206520662067206820692070207120722073207420752076207720782079208020812082208320842085208620872088208920902091209220932094209520962097209820992100
void QQuickTextEdit::updateTotalLines()
{
Q_D(QQuickTextEdit);
int subLines = 0;
for (QTextBlock it = d->document->begin(); it != d->document->end(); it = it.next()) {
QTextLayout *layout = it.layout();
if (!layout)
continue;
subLines += layout->lineCount()-1;
}
int newTotalLines = d->document->lineCount() + subLines;
if (d->lineCount != newTotalLines) {
d->lineCount = newTotalLines;
emit lineCountChanged();
}
}
void QQuickTextEditPrivate::updateDefaultTextOption()
{
Q_Q(QQuickTextEdit);
QTextOption opt = document->defaultTextOption();
int oldAlignment = opt.alignment();
Qt::LayoutDirection oldTextDirection = opt.textDirection();
QQuickTextEdit::HAlignment horizontalAlignment = q->effectiveHAlign();
if (contentDirection == Qt::RightToLeft) {
if (horizontalAlignment == QQuickTextEdit::AlignLeft)
horizontalAlignment = QQuickTextEdit::AlignRight;
else if (horizontalAlignment == QQuickTextEdit::AlignRight)
horizontalAlignment = QQuickTextEdit::AlignLeft;
}
if (!hAlignImplicit)
opt.setAlignment((Qt::Alignment)(int)(horizontalAlignment | vAlign));
else
opt.setAlignment(Qt::Alignment(vAlign));
#ifndef QT_NO_IM
if (contentDirection == Qt::LayoutDirectionAuto) {
opt.setTextDirection(qGuiApp->inputMethod()->inputDirection());
} else
#endif
{
opt.setTextDirection(contentDirection);
}
QTextOption::WrapMode oldWrapMode = opt.wrapMode();
opt.setWrapMode(QTextOption::WrapMode(wrapMode));
bool oldUseDesignMetrics = opt.useDesignMetrics();
opt.setUseDesignMetrics(renderType != QQuickTextEdit::NativeRendering);
if (oldWrapMode != opt.wrapMode() || oldAlignment != opt.alignment()
|| oldTextDirection != opt.textDirection()
|| oldUseDesignMetrics != opt.useDesignMetrics()) {
document->setDefaultTextOption(opt);
}
}
void QQuickTextEdit::focusInEvent(QFocusEvent *event)
{
Q_D(QQuickTextEdit);
d->handleFocusEvent(event);
QQuickImplicitSizeItem::focusInEvent(event);
}
void QQuickTextEdit::focusOutEvent(QFocusEvent *event)
{
2101210221032104210521062107210821092110211121122113211421152116211721182119212021212122212321242125212621272128212921302131213221332134213521362137213821392140214121422143214421452146214721482149215021512152215321542155215621572158215921602161216221632164216521662167216821692170
Q_D(QQuickTextEdit);
d->handleFocusEvent(event);
QQuickImplicitSizeItem::focusOutEvent(event);
}
void QQuickTextEditPrivate::handleFocusEvent(QFocusEvent *event)
{
Q_Q(QQuickTextEdit);
bool focus = event->type() == QEvent::FocusIn;
q->setCursorVisible(focus);
control->processEvent(event, QPointF(-xoff, -yoff));
if (focus) {
q->q_updateAlignment();
#ifndef QT_NO_IM
if (focusOnPress && !q->isReadOnly())
qGuiApp->inputMethod()->show();
q->connect(qApp->inputMethod(), SIGNAL(inputDirectionChanged(Qt::LayoutDirection)),
q, SLOT(q_updateAlignment()));
} else {
q->disconnect(qApp->inputMethod(), SIGNAL(inputDirectionChanged(Qt::LayoutDirection)),
q, SLOT(q_updateAlignment()));
#endif
}
}
void QQuickTextEdit::q_canPasteChanged()
{
Q_D(QQuickTextEdit);
bool old = d->canPaste;
d->canPaste = d->control->canPaste();
bool changed = old!=d->canPaste || !d->canPasteValid;
d->canPasteValid = true;
if (changed)
emit canPasteChanged();
}
/*!
\qmlmethod string QtQuick2::TextEdit::getText(int start, int end)
Returns the section of text that is between the \a start and \a end positions.
The returned text does not include any rich text formatting.
*/
QString QQuickTextEdit::getText(int start, int end) const
{
Q_D(const QQuickTextEdit);
start = qBound(0, start, d->document->characterCount() - 1);
end = qBound(0, end, d->document->characterCount() - 1);
QTextCursor cursor(d->document);
cursor.setPosition(start, QTextCursor::MoveAnchor);
cursor.setPosition(end, QTextCursor::KeepAnchor);
#ifndef QT_NO_TEXTHTMLPARSER
return d->richText
? cursor.selectedText()
: cursor.selection().toPlainText();
#else
return cursor.selection().toPlainText();
#endif
}
/*!
\qmlmethod string QtQuick2::TextEdit::getFormattedText(int start, int end)
Returns the section of text that is between the \a start and \a end positions.
The returned text will be formatted according the \l textFormat property.
*/
QString QQuickTextEdit::getFormattedText(int start, int end) const
2171217221732174217521762177217821792180218121822183218421852186218721882189219021912192219321942195219621972198219922002201220222032204220522062207220822092210221122122213221422152216221722182219222022212222222322242225222622272228222922302231223222332234223522362237223822392240
{
Q_D(const QQuickTextEdit);
start = qBound(0, start, d->document->characterCount() - 1);
end = qBound(0, end, d->document->characterCount() - 1);
QTextCursor cursor(d->document);
cursor.setPosition(start, QTextCursor::MoveAnchor);
cursor.setPosition(end, QTextCursor::KeepAnchor);
if (d->richText) {
#ifndef QT_NO_TEXTHTMLPARSER
return cursor.selection().toHtml();
#else
return cursor.selection().toPlainText();
#endif
} else {
return cursor.selection().toPlainText();
}
}
/*!
\qmlmethod QtQuick2::TextEdit::insert(int position, string text)
Inserts \a text into the TextEdit at position.
*/
void QQuickTextEdit::insert(int position, const QString &text)
{
Q_D(QQuickTextEdit);
if (position < 0 || position >= d->document->characterCount())
return;
QTextCursor cursor(d->document);
cursor.setPosition(position);
d->richText = d->richText || (d->format == AutoText && Qt::mightBeRichText(text));
if (d->richText) {
#ifndef QT_NO_TEXTHTMLPARSER
cursor.insertHtml(text);
#else
cursor.insertText(text);
#endif
} else {
cursor.insertText(text);
}
d->control->updateCursorRectangle(false);
}
/*!
\qmlmethod string QtQuick2::TextEdit::remove(int start, int end)
Removes the section of text that is between the \a start and \a end positions from the TextEdit.
*/
void QQuickTextEdit::remove(int start, int end)
{
Q_D(QQuickTextEdit);
start = qBound(0, start, d->document->characterCount() - 1);
end = qBound(0, end, d->document->characterCount() - 1);
QTextCursor cursor(d->document);
cursor.setPosition(start, QTextCursor::MoveAnchor);
cursor.setPosition(end, QTextCursor::KeepAnchor);
cursor.removeSelectedText();
d->control->updateCursorRectangle(false);
}
/*!
\qmlproperty TextDocument QtQuick2::TextEdit::textDocument
\since QtQuick 2.1
Returns the QQuickTextDocument of this TextEdit.
It can be used to implement syntax highlighting using
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\l QSyntaxHighlighter.
\sa QQuickTextDocument
*/
QQuickTextDocument *QQuickTextEdit::textDocument()
{
Q_D(QQuickTextEdit);
if (!d->quickDocument)
d->quickDocument = new QQuickTextDocument(this);
return d->quickDocument;
}
QT_END_NAMESPACE