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qt_demoe/designer/lib/shared/stylesheeteditor.cpp

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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include "stylesheeteditor_p.h"
#include "csshighlighter_p.h"
#include "iconselector_p.h"
#include "qtgradientmanager.h"
#include "qtgradientviewdialog.h"
#include "qtgradientutils.h"
#include "qdesigner_integration_p.h"
#include "qdesigner_utils_p.h"
#include "abstractsettings_p.h"
#include <QtDesigner/QDesignerFormWindowInterface>
#include <QtDesigner/QDesignerFormWindowCursorInterface>
#include <QtDesigner/QDesignerFormEditorInterface>
#include <QtDesigner/QDesignerPropertySheetExtension>
#include <QtDesigner/QExtensionManager>
#include <QtCore/QSignalMapper>
#include <QtGui/QAction>
#include <QtGui/QColorDialog>
#include <QtGui/QDialogButtonBox>
#include <QtGui/QFontDialog>
#include <QtGui/QMenu>
#include <QtGui/QPushButton>
#include <QtGui/QTextDocument>
#include <QtGui/QToolBar>
#include <QtGui/QVBoxLayout>
#include "private/qcssparser_p.h"
QT_BEGIN_NAMESPACE
static const char *styleSheetProperty = "styleSheet";
static const char *StyleSheetDialogC = "StyleSheetDialog";
static const char *Geometry = "Geometry";
namespace qdesigner_internal {
StyleSheetEditor::StyleSheetEditor(QWidget *parent)
: QTextEdit(parent)
{
setTabStopWidth(fontMetrics().width(QLatin1Char(' '))*4);
new CssHighlighter(document());
}
// --- StyleSheetEditorDialog
StyleSheetEditorDialog::StyleSheetEditorDialog(QDesignerFormEditorInterface *core, QWidget *parent, Mode mode):
QDialog(parent),
m_buttonBox(new QDialogButtonBox(QDialogButtonBox::Ok|QDialogButtonBox::Cancel|QDialogButtonBox::Help)),
m_editor(new StyleSheetEditor),
m_validityLabel(new QLabel(tr("Valid Style Sheet"))),
m_core(core),
m_addResourceAction(new QAction(tr("Add Resource..."), this)),
m_addGradientAction(new QAction(tr("Add Gradient..."), this)),
m_addColorAction(new QAction(tr("Add Color..."), this)),
m_addFontAction(new QAction(tr("Add Font..."), this))
{
setWindowTitle(tr("Edit Style Sheet"));
setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
connect(m_buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
connect(m_buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
connect(m_buttonBox, SIGNAL(helpRequested()), this, SLOT(slotRequestHelp()));
m_buttonBox->button(QDialogButtonBox::Help)->setShortcut(QKeySequence::HelpContents);
connect(m_editor, SIGNAL(textChanged()), this, SLOT(validateStyleSheet()));
QToolBar *toolBar = new QToolBar;
QGridLayout *layout = new QGridLayout;
layout->addWidget(toolBar, 0, 0, 1, 2);
layout->addWidget(m_editor, 1, 0, 1, 2);
layout->addWidget(m_validityLabel, 2, 0, 1, 1);
layout->addWidget(m_buttonBox, 2, 1, 1, 1);
setLayout(layout);
m_editor->setContextMenuPolicy(Qt::CustomContextMenu);
connect(m_editor, SIGNAL(customContextMenuRequested(QPoint)),
this, SLOT(slotContextMenuRequested(QPoint)));
QSignalMapper *resourceActionMapper = new QSignalMapper(this);
QSignalMapper *gradientActionMapper = new QSignalMapper(this);
QSignalMapper *colorActionMapper = new QSignalMapper(this);
resourceActionMapper->setMapping(m_addResourceAction, QString());
gradientActionMapper->setMapping(m_addGradientAction, QString());
colorActionMapper->setMapping(m_addColorAction, QString());
connect(m_addResourceAction, SIGNAL(triggered()), resourceActionMapper, SLOT(map()));
connect(m_addGradientAction, SIGNAL(triggered()), gradientActionMapper, SLOT(map()));
connect(m_addColorAction, SIGNAL(triggered()), colorActionMapper, SLOT(map()));
connect(m_addFontAction, SIGNAL(triggered()), this, SLOT(slotAddFont()));
m_addResourceAction->setEnabled(mode == ModePerForm);
const char * const resourceProperties[] = {
"background-image",
"border-image",
"image",
0
};
const char * const colorProperties[] = {
"color",
"background-color",
"alternate-background-color",
"border-color",
"border-top-color",
"border-right-color",
"border-bottom-color",
"border-left-color",
"gridline-color",
"selection-color",
"selection-background-color",
0
};
QMenu *resourceActionMenu = new QMenu(this);
QMenu *gradientActionMenu = new QMenu(this);
QMenu *colorActionMenu = new QMenu(this);
for (int resourceProperty = 0; resourceProperties[resourceProperty]; ++resourceProperty) {
QAction *action = resourceActionMenu->addAction(QLatin1String(resourceProperties[resourceProperty]));
connect(action, SIGNAL(triggered()), resourceActionMapper, SLOT(map()));
resourceActionMapper->setMapping(action, QLatin1String(resourceProperties[resourceProperty]));
}
for (int colorProperty = 0; colorProperties[colorProperty]; ++colorProperty) {
QAction *gradientAction = gradientActionMenu->addAction(QLatin1String(colorProperties[colorProperty]));
QAction *colorAction = colorActionMenu->addAction(QLatin1String(colorProperties[colorProperty]));
connect(gradientAction, SIGNAL(triggered()), gradientActionMapper, SLOT(map()));
connect(colorAction, SIGNAL(triggered()), colorActionMapper, SLOT(map()));
gradientActionMapper->setMapping(gradientAction, QLatin1String(colorProperties[colorProperty]));
colorActionMapper->setMapping(colorAction, QLatin1String(colorProperties[colorProperty]));
}
connect(resourceActionMapper, SIGNAL(mapped(QString)), this, SLOT(slotAddResource(QString)));
connect(gradientActionMapper, SIGNAL(mapped(QString)), this, SLOT(slotAddGradient(QString)));
connect(colorActionMapper, SIGNAL(mapped(QString)), this, SLOT(slotAddColor(QString)));
m_addResourceAction->setMenu(resourceActionMenu);
m_addGradientAction->setMenu(gradientActionMenu);
m_addColorAction->setMenu(colorActionMenu);
toolBar->addAction(m_addResourceAction);
toolBar->addAction(m_addGradientAction);
toolBar->addAction(m_addColorAction);
toolBar->addAction(m_addFontAction);
m_editor->setFocus();
QDesignerSettingsInterface *settings = core->settingsManager();
settings->beginGroup(QLatin1String(StyleSheetDialogC));
if (settings->contains(QLatin1String(Geometry)))
restoreGeometry(settings->value(QLatin1String(Geometry)).toByteArray());
settings->endGroup();
}
StyleSheetEditorDialog::~StyleSheetEditorDialog()
{
QDesignerSettingsInterface *settings = m_core->settingsManager();
settings->beginGroup(QLatin1String(StyleSheetDialogC));
settings->setValue(QLatin1String(Geometry), saveGeometry());
settings->endGroup();
}
void StyleSheetEditorDialog::setOkButtonEnabled(bool v)
{
m_buttonBox->button(QDialogButtonBox::Ok)->setEnabled(v);
if (QPushButton *applyButton = m_buttonBox->button(QDialogButtonBox::Apply))
applyButton->setEnabled(v);
}
void StyleSheetEditorDialog::slotContextMenuRequested(const QPoint &pos)
{
QMenu *menu = m_editor->createStandardContextMenu();
menu->addSeparator();
menu->addAction(m_addResourceAction);
menu->addAction(m_addGradientAction);
menu->exec(mapToGlobal(pos));
delete menu;
}
void StyleSheetEditorDialog::slotAddResource(const QString &property)
{
const QString path = IconSelector::choosePixmapResource(m_core, m_core->resourceModel(), QString(), this);
if (!path.isEmpty())
insertCssProperty(property, QString(QLatin1String("url(%1)")).arg(path));
}
void StyleSheetEditorDialog::slotAddGradient(const QString &property)
{
bool ok;
const QGradient grad = QtGradientViewDialog::getGradient(&ok, m_core->gradientManager(), this);
if (ok)
insertCssProperty(property, QtGradientUtils::styleSheetCode(grad));
}
void StyleSheetEditorDialog::slotAddColor(const QString &property)
{
const QColor color = QColorDialog::getColor(0xffffffff, this, QString(), QColorDialog::ShowAlphaChannel);
if (!color.isValid())
return;
QString colorStr;
if (color.alpha() == 255) {
colorStr = QString(QLatin1String("rgb(%1, %2, %3)")).arg(
color.red()).arg(color.green()).arg(color.blue());
} else {
colorStr = QString(QLatin1String("rgba(%1, %2, %3, %4)")).arg(
color.red()).arg(color.green()).arg(color.blue()).arg(color.alpha());
}
insertCssProperty(property, colorStr);
}
void StyleSheetEditorDialog::slotAddFont()
{
bool ok;
QFont font = QFontDialog::getFont(&ok, this);
if (ok) {
QString fontStr;
if (font.weight() != QFont::Normal) {
fontStr += QString::number(font.weight());
fontStr += QLatin1Char(' ');
}
switch (font.style()) {
case QFont::StyleItalic:
fontStr += QLatin1String("italic ");
break;
case QFont::StyleOblique:
fontStr += QLatin1String("oblique ");
break;
default:
break;
}
fontStr += QString::number(font.pointSize());
fontStr += QLatin1String("pt \"");
fontStr += font.family();
fontStr += QLatin1Char('"');
insertCssProperty(QLatin1String("font"), fontStr);
QString decoration;
if (font.underline())
decoration += QLatin1String("underline");
if (font.strikeOut()) {
if (!decoration.isEmpty())
decoration += QLatin1Char(' ');
decoration += QLatin1String("line-through");
}
insertCssProperty(QLatin1String("text-decoration"), decoration);
}
}
void StyleSheetEditorDialog::insertCssProperty(const QString &name, const QString &value)
{
if (!value.isEmpty()) {
QTextCursor cursor = m_editor->textCursor();
if (!name.isEmpty()) {
cursor.beginEditBlock();
cursor.removeSelectedText();
cursor.movePosition(QTextCursor::EndOfLine);
// Simple check to see if we're in a selector scope
const QTextDocument *doc = m_editor->document();
const QTextCursor closing = doc->find(QLatin1String("}"), cursor, QTextDocument::FindBackward);
const QTextCursor opening = doc->find(QLatin1String("{"), cursor, QTextDocument::FindBackward);
const bool inSelector = !opening.isNull() && (closing.isNull() ||
closing.position() < opening.position());
QString insertion;
if (m_editor->textCursor().block().length() != 1)
insertion += QLatin1Char('\n');
if (inSelector)
insertion += QLatin1Char('\t');
insertion += name;
insertion += QLatin1String(": ");
insertion += value;
insertion += QLatin1Char(';');
cursor.insertText(insertion);
cursor.endEditBlock();
} else {
cursor.insertText(value);
}
}
}
void StyleSheetEditorDialog::slotRequestHelp()
{
QDesignerIntegration::requestHelp(m_core, QLatin1String("qt"),
QLatin1String("stylesheet-reference.html"));
}
QDialogButtonBox * StyleSheetEditorDialog::buttonBox() const
{
return m_buttonBox;
}
QString StyleSheetEditorDialog::text() const
{
return m_editor->toPlainText();
}
void StyleSheetEditorDialog::setText(const QString &t)
{
m_editor->setText(t);
}
bool StyleSheetEditorDialog::isStyleSheetValid(const QString &styleSheet)
{
QCss::Parser parser(styleSheet);
QCss::StyleSheet sheet;
if (parser.parse(&sheet))
return true;
QString fullSheet = QLatin1String("* { ");
fullSheet += styleSheet;
fullSheet += QLatin1Char('}');
QCss::Parser parser2(fullSheet);
return parser2.parse(&sheet);
}
void StyleSheetEditorDialog::validateStyleSheet()
{
const bool valid = isStyleSheetValid(m_editor->toPlainText());
setOkButtonEnabled(valid);
if (valid) {
m_validityLabel->setText(tr("Valid Style Sheet"));
m_validityLabel->setStyleSheet(QLatin1String("color: green"));
} else {
m_validityLabel->setText(tr("Invalid Style Sheet"));
m_validityLabel->setStyleSheet(QLatin1String("color: red"));
}
}
// --- StyleSheetPropertyEditorDialog
StyleSheetPropertyEditorDialog::StyleSheetPropertyEditorDialog(QWidget *parent,
QDesignerFormWindowInterface *fw,
QWidget *widget):
StyleSheetEditorDialog(fw->core(), parent),
m_fw(fw),
m_widget(widget)
{
Q_ASSERT(m_fw != 0);
QPushButton *apply = buttonBox()->addButton(QDialogButtonBox::Apply);
QObject::connect(apply, SIGNAL(clicked()), this, SLOT(applyStyleSheet()));
QObject::connect(buttonBox(), SIGNAL(accepted()), this, SLOT(applyStyleSheet()));
QDesignerPropertySheetExtension *sheet =
qt_extension<QDesignerPropertySheetExtension*>(m_fw->core()->extensionManager(), m_widget);
Q_ASSERT(sheet != 0);
const int index = sheet->indexOf(QLatin1String(styleSheetProperty));
const PropertySheetStringValue value = qVariantValue<PropertySheetStringValue>(sheet->property(index));
setText(value.value());
}
void StyleSheetPropertyEditorDialog::applyStyleSheet()
{
const PropertySheetStringValue value(text(), false);
m_fw->cursor()->setWidgetProperty(m_widget, QLatin1String(styleSheetProperty), qVariantFromValue(value));
}
} // namespace qdesigner_internal
QT_END_NAMESPACE
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