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Update richtexteditor

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git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@3014 bfdf4180-ca20-0410-9c96-a3a8aa849046
This commit is contained in:
scorpio810 2014-04-20 18:53:10 +00:00
parent aa6d7efd98
commit 38f1d820b1
3 changed files with 130 additions and 60 deletions
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ico/32x32/simplifyrichtext.png Normal file
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1
qelectrotech.qrc
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@ -227,5 +227,6 @@
<file>ico/22x22/applications-development-translation.png</file>
<file>ico/48x48/view-pim-journal.png</file>
<file>ico/24x16/nl.png</file>
<file>ico/32x32/simplifyrichtext.png</file>
</qresource>
</RCC>

189
sources/richtext/richtexteditor.cpp
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@ -53,9 +53,9 @@
#include <QtCore/QList>
#include <QtCore/QMap>
#include <QtCore/QPointer>
#include <QtCore/QProcess>
#include <QtCore/QTemporaryFile>
#include <QtCore/QDir>
#include <QtCore/QXmlStreamReader>
#include <QtCore/QXmlStreamWriter>
#include <QtCore/QXmlStreamAttributes>
#include <QtGui/QAction>
#include <QtGui/QColorDialog>
@ -78,10 +78,103 @@
QT_BEGIN_NAMESPACE
//static const char *RichTextDialogC = "RichTextDialog";
//static const char *Geometry = "Geometry";
static const char RichTextDialogGroupC[] = "RichTextDialog";
static const char GeometryKeyC[] = "Geometry";
static const char TabKeyC[] = "Tab";
const bool simplifyRichTextDefault = true;
namespace qdesigner_internal {
// Richtext simplification filter helpers: Elements to be discarded
static inline bool filterElement(const QStringRef &name)
{
return name != QLatin1String("meta") && name != QLatin1String("style");
}
// Richtext simplification filter helpers: Filter attributes of elements
static inline void filterAttributes(const QStringRef &name,
QXmlStreamAttributes *atts,
bool *paragraphAlignmentFound)
{
typedef QXmlStreamAttributes::iterator AttributeIt;
if (atts->isEmpty())
return;
// No style attributes for <body>
if (name == QLatin1String("body")) {
atts->clear();
return;
}
// Clean out everything except 'align' for 'p'
if (name == QLatin1String("p")) {
for (AttributeIt it = atts->begin(); it != atts->end(); ) {
if (it->name() == QLatin1String("align")) {
++it;
*paragraphAlignmentFound = true;
} else {
it = atts->erase(it);
}
}
return;
}
}
// Richtext simplification filter helpers: Check for blank QStringRef.
static inline bool isWhiteSpace(const QStringRef &in)
{
const int count = in.size();
for (int i = 0; i < count; i++)
if (!in.at(i).isSpace())
return false;
return true;
}
// Richtext simplification filter: Remove hard-coded font settings,
// <style> elements, <p> attributes other than 'align' and
// and unnecessary meta-information.
QString simplifyRichTextFilter(const QString &in, bool *isPlainTextPtr = 0)
{
unsigned elementCount = 0;
bool paragraphAlignmentFound = false;
QString out;
QXmlStreamReader reader(in);
QXmlStreamWriter writer(&out);
writer.setAutoFormatting(false);
writer.setAutoFormattingIndent(0);
while (!reader.atEnd()) {
switch (reader.readNext()) {
case QXmlStreamReader::StartElement:
elementCount++;
if (filterElement(reader.name())) {
const QStringRef name = reader.name();
QXmlStreamAttributes attributes = reader.attributes();
filterAttributes(name, &attributes, &paragraphAlignmentFound);
writer.writeStartElement(name.toString());
if (!attributes.isEmpty())
writer.writeAttributes(attributes);
} else {
reader.readElementText(); // Skip away all nested elements and characters.
}
break;
case QXmlStreamReader::Characters:
if (!isWhiteSpace(reader.text()))
writer.writeCharacters(reader.text().toString());
break;
case QXmlStreamReader::EndElement:
writer.writeEndElement();
break;
default:
break;
}
}
// Check for plain text (no spans, just <html><head><body><p>)
if (isPlainTextPtr)
*isPlainTextPtr = !paragraphAlignmentFound && elementCount == 4u; //
return out;
}
class RichTextEditor : public QTextEdit
{
@ -91,6 +184,7 @@ public:
void setDefaultFont(const QFont &font);
QToolBar *createToolBar(QWidget *parent = 0);
bool simplifyRichText() const { return m_simplifyRichText; }
public slots:
void setFontBold(bool b);
@ -100,6 +194,10 @@ public slots:
signals:
void stateChanged();
void simplifyRichTextChanged(bool);
private:
bool m_simplifyRichText;
};
class AddLinkDialog : public QDialog
@ -293,7 +391,7 @@ private slots:
void setVAlignSub(bool sub);
void insertLink();
void insertImage();
void runXmlPatterns();
private:
QAction *m_bold_action;
@ -307,7 +405,7 @@ private:
QAction *m_align_justify_action;
QAction *m_link_action;
QAction *m_image_action;
QAction *m_xmlPatterns;
QAction *m_simplify_richtext_action;
ColorAction *m_color_action;
QComboBox *m_font_size_input;
@ -338,11 +436,6 @@ RichTextEditorToolBar::RichTextEditorToolBar(RichTextEditor *editor,
m_editor(editor)
{
m_xmlPatterns = new QAction("Run XMLPatterns", this);
connect(m_xmlPatterns, SIGNAL(triggered()), this, SLOT(runXmlPatterns()));
addAction(m_xmlPatterns);
m_xmlPatterns -> setVisible( false );
// Font size combo box
m_font_size_input->setEditable(false);
const QList<int> font_sizes = QFontDatabase::standardSizes();
@ -353,7 +446,6 @@ RichTextEditorToolBar::RichTextEditorToolBar(RichTextEditor *editor,
this, SLOT(sizeInputActivated(QString)));
addWidget(m_font_size_input);
addSeparator();
// Bold, italic and underline buttons
@ -375,7 +467,6 @@ RichTextEditorToolBar::RichTextEditorToolBar(RichTextEditor *editor,
m_underline_action->setShortcut(tr("CTRL+U"));
addAction(m_underline_action);
addSeparator();
// Left, center, right and justified alignment buttons
@ -404,10 +495,9 @@ RichTextEditorToolBar::RichTextEditorToolBar(RichTextEditor *editor,
addAction(m_align_justify_action);
m_align_justify_action -> setVisible( false );
m_align_center_action -> setVisible( false );
m_align_left_action -> setVisible( false );
m_align_right_action -> setVisible( false );
//addSeparator();
m_align_center_action -> setVisible( false );
m_align_left_action -> setVisible( false );
m_align_right_action -> setVisible( false );
// Superscript and subscript buttons
@ -426,8 +516,6 @@ RichTextEditorToolBar::RichTextEditorToolBar(RichTextEditor *editor,
m_valign_sup_action -> setVisible( false );
m_valign_sub_action -> setVisible( false );
//addSeparator();
// Insert hyperlink and image buttons
m_link_action->setText(tr("Ins\351rer un lien"));
@ -443,13 +531,23 @@ RichTextEditorToolBar::RichTextEditorToolBar(RichTextEditor *editor,
// Text color button
connect(m_color_action, SIGNAL(colorChanged(QColor)),
this, SLOT(colorChanged(QColor)));
addAction(m_color_action);
this, SLOT(colorChanged(QColor)));
addAction(m_color_action);
connect(editor, SIGNAL(textChanged()), this, SLOT(updateActions()));
connect(editor, SIGNAL(stateChanged()), this, SLOT(updateActions()));
updateActions();
// Simplify rich text
m_simplify_richtext_action = createCheckableAction(
QIcon(":/ico/32x32/simplifyrichtext.png"),
tr("Simplify Rich Text"), editor, SLOT(setSimplifyRichText(bool)),this);
m_simplify_richtext_action->setChecked(editor->simplifyRichText());
connect(m_editor, SIGNAL(simplifyRichTextChanged(bool)),
m_simplify_richtext_action, SLOT(setChecked(bool)));
addAction(m_simplify_richtext_action);
connect(editor, SIGNAL(textChanged()), this, SLOT(updateActions()));
connect(editor, SIGNAL(stateChanged()), this, SLOT(updateActions()));
updateActions();
}
void RichTextEditorToolBar::alignmentActionTriggered(QAction *action)
@ -469,37 +567,8 @@ void RichTextEditorToolBar::alignmentActionTriggered(QAction *action)
m_editor->setAlignment(new_alignment);
}
QString runXSLT(const QString &t)
{
QString pattern = QDir::tempPath();
if (!pattern.endsWith('/'))
pattern += '/';
pattern += "qt_tempXXXXXX.html";
QTemporaryFile tf(pattern);
if (!tf.open())
return QLatin1String("Open failure");
const QString tfName = tf.fileName();
tf.write(t.toUtf8());
tf.close();
QProcess p;
QStringList args;
args << "tohtml.xsl" << tfName;
p.start("xmlpatterns",args);
if (!p.waitForStarted() || !p.waitForFinished())
return QLatin1String("Run failure");
const QByteArray output = p.exitStatus() == QProcess::NormalExit &&
p.exitCode() == 0 ?
p.readAllStandardOutput() :
p.readAllStandardError();
return QString::fromUtf8(output);
}
void RichTextEditorToolBar::runXmlPatterns()
{
qWarning("%s", qPrintable(runXSLT(m_editor->text(Qt::RichText))));
}
void RichTextEditorToolBar::colorChanged(const QColor &color)
{
m_editor->setTextColor(color);
@ -649,15 +718,16 @@ QString RichTextEditor::text(Qt::TextFormat format) const
case Qt::PlainText:
return toPlainText();
case Qt::RichText:
return toHtml();
return m_simplifyRichText ? simplifyRichTextFilter(toHtml()) : toHtml();
case Qt::AutoText:
break;
}
const QString html = toHtml();
const QString plain = toPlainText();
QTextEdit tester;
tester.setPlainText(plain);
return tester.toHtml() == html ? plain : html;
bool isPlainText;
const QString simplifiedHtml = simplifyRichTextFilter(html, &isPlainText);
if (isPlainText)
return toPlainText();
return m_simplifyRichText ? simplifiedHtml : html;
}
RichTextEditorDialog::RichTextEditorDialog(QWidget *parent) :
@ -771,7 +841,6 @@ void RichTextEditorDialog::tabIndexChanged(int newIndex)
if (newIndex == SourceIndex) {
const QString html = m_editor->text(Qt::RichText);
qWarning("%s", qPrintable(runXSLT(html)));
m_text_edit->setPlainText(html);
} else