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     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the Qt Designer of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

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    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

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    24 ** In addition, as a special exception, Nokia gives you certain additional

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    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #include "stylesheeteditor_p.h"

    43 #include "csshighlighter_p.h"

    44 #include "iconselector_p.h"

    45 #include "qtgradientmanager.h"

    46 #include "qtgradientviewdialog.h"

    47 #include "qtgradientutils.h"

    48 #include "qdesigner_integration_p.h"

    49 #include "qdesigner_utils_p.h"

    50 #include "abstractsettings_p.h"

    51 

    52 #include <QtDesigner/QDesignerFormWindowInterface>

    53 #include <QtDesigner/QDesignerFormWindowCursorInterface>

    54 #include <QtDesigner/QDesignerFormEditorInterface>

    55 #include <QtDesigner/QDesignerPropertySheetExtension>

    56 #include <QtDesigner/QExtensionManager>

    57 

    58 #include <QtCore/QSignalMapper>

    59 #include <QtGui/QAction>

    60 #include <QtGui/QColorDialog>

    61 #include <QtGui/QDialogButtonBox>

    62 #include <QtGui/QFontDialog>

    63 #include <QtGui/QMenu>

    64 #include <QtGui/QPushButton>

    65 #include <QtGui/QTextDocument>

    66 #include <QtGui/QToolBar>

    67 #include <QtGui/QVBoxLayout>

    68 #include "private/qcssparser_p.h"

    69 

    70 QT_BEGIN_NAMESPACE

    71 

    72 static const char *styleSheetProperty = "styleSheet";

    73 static const char *StyleSheetDialogC = "StyleSheetDialog";

    74 static const char *Geometry = "Geometry";

    75 

    76 namespace qdesigner_internal {

    77 

    78 StyleSheetEditor::StyleSheetEditor(QWidget *parent)

    79     : QTextEdit(parent)

    80 {

    81     setTabStopWidth(fontMetrics().width(QLatin1Char(' '))*4);

    82     new CssHighlighter(document());

    83 }

    84 

    85 // --- StyleSheetEditorDialog

    86 StyleSheetEditorDialog::StyleSheetEditorDialog(QDesignerFormEditorInterface *core, QWidget *parent, Mode mode):

    87     QDialog(parent),

    88     m_buttonBox(new QDialogButtonBox(QDialogButtonBox::Ok|QDialogButtonBox::Cancel|QDialogButtonBox::Help)),

    89     m_editor(new StyleSheetEditor),

    90     m_validityLabel(new QLabel(tr("Valid Style Sheet"))),

    91     m_core(core),

    92     m_addResourceAction(new QAction(tr("Add Resource..."), this)),

    93     m_addGradientAction(new QAction(tr("Add Gradient..."), this)),

    94     m_addColorAction(new QAction(tr("Add Color..."), this)),

    95     m_addFontAction(new QAction(tr("Add Font..."), this))

    96 {

    97     setWindowTitle(tr("Edit Style Sheet"));

    98     setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);

    99 

   100     connect(m_buttonBox, SIGNAL(accepted()), this, SLOT(accept()));

   101     connect(m_buttonBox, SIGNAL(rejected()), this, SLOT(reject()));

   102     connect(m_buttonBox, SIGNAL(helpRequested()), this, SLOT(slotRequestHelp()));

   103     m_buttonBox->button(QDialogButtonBox::Help)->setShortcut(QKeySequence::HelpContents);

   104 

   105     connect(m_editor, SIGNAL(textChanged()), this, SLOT(validateStyleSheet()));

   106 

   107     QToolBar *toolBar = new QToolBar;

   108 

   109     QGridLayout *layout = new QGridLayout;

   110     layout->addWidget(toolBar, 0, 0, 1, 2);

   111     layout->addWidget(m_editor, 1, 0, 1, 2);

   112     layout->addWidget(m_validityLabel, 2, 0, 1, 1);

   113     layout->addWidget(m_buttonBox, 2, 1, 1, 1);

   114     setLayout(layout);

   115 

   116     m_editor->setContextMenuPolicy(Qt::CustomContextMenu);

   117     connect(m_editor, SIGNAL(customContextMenuRequested(const QPoint &)),

   118                 this, SLOT(slotContextMenuRequested(const QPoint &)));

   119 

   120     QSignalMapper *resourceActionMapper = new QSignalMapper(this);

   121     QSignalMapper *gradientActionMapper = new QSignalMapper(this);

   122     QSignalMapper *colorActionMapper = new QSignalMapper(this);

   123 

   124     resourceActionMapper->setMapping(m_addResourceAction, QString());

   125     gradientActionMapper->setMapping(m_addGradientAction, QString());

   126     colorActionMapper->setMapping(m_addColorAction, QString());

   127 

   128     connect(m_addResourceAction, SIGNAL(triggered()), resourceActionMapper, SLOT(map()));

   129     connect(m_addGradientAction, SIGNAL(triggered()), gradientActionMapper, SLOT(map()));

   130     connect(m_addColorAction, SIGNAL(triggered()), colorActionMapper, SLOT(map()));

   131     connect(m_addFontAction, SIGNAL(triggered()), this, SLOT(slotAddFont()));

   132 

   133     m_addResourceAction->setEnabled(mode == ModePerForm);

   134 

   135     const char * const resourceProperties[] = {

   136         "background-image",

   137         "border-image",

   138         "image",

   139         0

   140     };

   141 

   142     const char * const colorProperties[] = {

   143         "color",

   144         "background-color",

   145         "alternate-background-color",

   146         "border-color",

   147         "border-top-color",

   148         "border-right-color",

   149         "border-bottom-color",

   150         "border-left-color",

   151         "gridline-color",

   152         "selection-color",

   153         "selection-background-color",

   154         0

   155     };

   156 

   157     QMenu *resourceActionMenu = new QMenu(this);

   158     QMenu *gradientActionMenu = new QMenu(this);

   159     QMenu *colorActionMenu = new QMenu(this);

   160 

   161     for (int resourceProperty = 0; resourceProperties[resourceProperty]; ++resourceProperty) {

   162         QAction *action = resourceActionMenu->addAction(QLatin1String(resourceProperties[resourceProperty]));

   163         connect(action, SIGNAL(triggered()), resourceActionMapper, SLOT(map()));

   164         resourceActionMapper->setMapping(action, QLatin1String(resourceProperties[resourceProperty]));

   165     }

   166 

   167     for (int colorProperty = 0; colorProperties[colorProperty]; ++colorProperty) {

   168         QAction *gradientAction = gradientActionMenu->addAction(QLatin1String(colorProperties[colorProperty]));

   169         QAction *colorAction = colorActionMenu->addAction(QLatin1String(colorProperties[colorProperty]));

   170         connect(gradientAction, SIGNAL(triggered()), gradientActionMapper, SLOT(map()));

   171         connect(colorAction, SIGNAL(triggered()), colorActionMapper, SLOT(map()));

   172         gradientActionMapper->setMapping(gradientAction, QLatin1String(colorProperties[colorProperty]));

   173         colorActionMapper->setMapping(colorAction, QLatin1String(colorProperties[colorProperty]));

   174     }

   175 

   176     connect(resourceActionMapper, SIGNAL(mapped(QString)), this, SLOT(slotAddResource(QString)));

   177     connect(gradientActionMapper, SIGNAL(mapped(QString)), this, SLOT(slotAddGradient(QString)));

   178     connect(colorActionMapper, SIGNAL(mapped(QString)), this, SLOT(slotAddColor(QString)));

   179 

   180     m_addResourceAction->setMenu(resourceActionMenu);

   181     m_addGradientAction->setMenu(gradientActionMenu);

   182     m_addColorAction->setMenu(colorActionMenu);

   183 

   184     toolBar->addAction(m_addResourceAction);

   185     toolBar->addAction(m_addGradientAction);

   186     toolBar->addAction(m_addColorAction);

   187     toolBar->addAction(m_addFontAction);

   188 

   189     m_editor->setFocus();

   190 

   191     QDesignerSettingsInterface *settings = core->settingsManager();

   192     settings->beginGroup(QLatin1String(StyleSheetDialogC));

   193 

   194     if (settings->contains(QLatin1String(Geometry)))

   195         restoreGeometry(settings->value(QLatin1String(Geometry)).toByteArray());

   196 

   197     settings->endGroup();

   198 }

   199 

   200 StyleSheetEditorDialog::~StyleSheetEditorDialog()

   201 {

   202     QDesignerSettingsInterface *settings = m_core->settingsManager();

   203     settings->beginGroup(QLatin1String(StyleSheetDialogC));

   204 

   205     settings->setValue(QLatin1String(Geometry), saveGeometry());

   206     settings->endGroup();

   207 }

   208 

   209 void StyleSheetEditorDialog::setOkButtonEnabled(bool v)

   210 {

   211     m_buttonBox->button(QDialogButtonBox::Ok)->setEnabled(v);

   212     if (QPushButton *applyButton = m_buttonBox->button(QDialogButtonBox::Apply))

   213         applyButton->setEnabled(v);

   214 }

   215 

   216 void StyleSheetEditorDialog::slotContextMenuRequested(const QPoint &pos)

   217 {

   218     QMenu *menu = m_editor->createStandardContextMenu();

   219     menu->addSeparator();

   220     menu->addAction(m_addResourceAction);

   221     menu->addAction(m_addGradientAction);

   222     menu->exec(mapToGlobal(pos));

   223     delete menu;

   224 }

   225 

   226 void StyleSheetEditorDialog::slotAddResource(const QString &property)

   227 {

   228     const QString path = IconSelector::choosePixmapResource(m_core, m_core->resourceModel(), QString(), this);

   229     if (!path.isEmpty())

   230         insertCssProperty(property, QString(QLatin1String("url(%1)")).arg(path));

   231 }

   232 

   233 void StyleSheetEditorDialog::slotAddGradient(const QString &property)

   234 {

   235     bool ok;

   236     const QGradient grad = QtGradientViewDialog::getGradient(&ok, m_core->gradientManager(), this);

   237     if (ok)

   238         insertCssProperty(property, QtGradientUtils::styleSheetCode(grad));

   239 }

   240 

   241 void StyleSheetEditorDialog::slotAddColor(const QString &property)

   242 {

   243     const QColor color = QColorDialog::getColor(0xffffffff, this, QString(), QColorDialog::ShowAlphaChannel);

   244     if (!color.isValid())

   245         return;

   246 

   247     QString colorStr;

   248 

   249     if (color.alpha() == 255) {

   250         colorStr = QString(QLatin1String("rgb(%1, %2, %3)")).arg(

   251                 color.red()).arg(color.green()).arg(color.blue());

   252     } else {

   253         colorStr = QString(QLatin1String("rgba(%1, %2, %3, %4)")).arg(

   254                 color.red()).arg(color.green()).arg(color.blue()).arg(color.alpha());

   255     }

   256 

   257     insertCssProperty(property, colorStr);

   258 }

   259 

   260 void StyleSheetEditorDialog::slotAddFont()

   261 {

   262     bool ok;

   263     QFont font = QFontDialog::getFont(&ok, this);

   264     if (ok) {

   265         QString fontStr;

   266         if (font.weight() != QFont::Normal) {

   267             fontStr += QString::number(font.weight());

   268             fontStr += QLatin1Char(' ');

   269         }

   270 

   271         switch (font.style()) {

   272         case QFont::StyleItalic:

   273             fontStr += QLatin1String("italic ");

   274             break;

   275         case QFont::StyleOblique:

   276             fontStr += QLatin1String("oblique ");

   277             break;

   278         default:

   279             break;

   280         }

   281         fontStr += QString::number(font.pointSize());

   282         fontStr += QLatin1String("pt \"");

   283         fontStr += font.family();

   284         fontStr += QLatin1Char('"');

   285 

   286         insertCssProperty(QLatin1String("font"), fontStr);

   287         QString decoration;

   288         if (font.underline())

   289             decoration += QLatin1String("underline");

   290         if (font.strikeOut()) {

   291             if (!decoration.isEmpty())

   292                 decoration += QLatin1Char(' ');

   293             decoration += QLatin1String("line-through");

   294         }

   295         insertCssProperty(QLatin1String("text-decoration"), decoration);

   296     }

   297 }

   298 

   299 void StyleSheetEditorDialog::insertCssProperty(const QString &name, const QString &value)

   300 {

   301     if (!value.isEmpty()) {

   302         QTextCursor cursor = m_editor->textCursor();

   303         if (!name.isEmpty()) {

   304             cursor.beginEditBlock();

   305             cursor.removeSelectedText();

   306             cursor.movePosition(QTextCursor::EndOfLine);

   307 

   308             // Simple check to see if we're in a selector scope

   309             const QTextDocument *doc = m_editor->document();

   310             const QTextCursor closing = doc->find(QLatin1String("}"), cursor, QTextDocument::FindBackward);

   311             const QTextCursor opening = doc->find(QLatin1String("{"), cursor, QTextDocument::FindBackward);

   312             const bool inSelector = !opening.isNull() && (closing.isNull() ||

   313                                                           closing.position() < opening.position());

   314             QString insertion;

   315             if (m_editor->textCursor().block().length() != 1)

   316                 insertion += QLatin1Char('\n');

   317             if (inSelector)

   318                 insertion += QLatin1Char('\t');

   319             insertion += name;

   320             insertion += QLatin1String(": ");

   321             insertion += value;

   322             insertion += QLatin1Char(';');

   323             cursor.insertText(insertion);

   324             cursor.endEditBlock();

   325         } else {

   326             cursor.insertText(value);

   327         }

   328     }

   329 }

   330 

   331 void StyleSheetEditorDialog::slotRequestHelp()

   332 {

   333     QDesignerIntegration::requestHelp(m_core, QLatin1String("qt"),

   334                                       QLatin1String("stylesheet-reference.html"));

   335 }

   336 

   337 QDialogButtonBox * StyleSheetEditorDialog::buttonBox() const

   338 {

   339    return m_buttonBox;

   340 }

   341 

   342 QString StyleSheetEditorDialog::text() const

   343 {

   344     return m_editor->toPlainText();

   345 }

   346 

   347 void StyleSheetEditorDialog::setText(const QString &t)

   348 {

   349     m_editor->setText(t);

   350 }

   351 

   352 bool StyleSheetEditorDialog::isStyleSheetValid(const QString &styleSheet)

   353 {

   354     QCss::Parser parser(styleSheet);

   355     QCss::StyleSheet sheet;

   356     if (parser.parse(&sheet))

   357         return true;

   358     QString fullSheet = QLatin1String("* { ");

   359     fullSheet += styleSheet;

   360     fullSheet += QLatin1Char('}');

   361     QCss::Parser parser2(fullSheet);

   362     return parser2.parse(&sheet);

   363 }

   364 

   365 void StyleSheetEditorDialog::validateStyleSheet()

   366 {

   367     const bool valid = isStyleSheetValid(m_editor->toPlainText());

   368     setOkButtonEnabled(valid);

   369     if (valid) {

   370         m_validityLabel->setText(tr("Valid Style Sheet"));

   371         m_validityLabel->setStyleSheet(QLatin1String("color: green"));

   372     } else {

   373         m_validityLabel->setText(tr("Invalid Style Sheet"));

   374         m_validityLabel->setStyleSheet(QLatin1String("color: red"));

   375     }

   376 }

   377 

   378 // --- StyleSheetPropertyEditorDialog

   379 StyleSheetPropertyEditorDialog::StyleSheetPropertyEditorDialog(QWidget *parent,

   380                                                QDesignerFormWindowInterface *fw,

   381                                                QWidget *widget):

   382     StyleSheetEditorDialog(fw->core(), parent),

   383     m_fw(fw),

   384     m_widget(widget)

   385 {

   386     Q_ASSERT(m_fw != 0);

   387 

   388     QPushButton *apply = buttonBox()->addButton(QDialogButtonBox::Apply);

   389     QObject::connect(apply, SIGNAL(clicked()), this, SLOT(applyStyleSheet()));

   390     QObject::connect(buttonBox(), SIGNAL(accepted()), this, SLOT(applyStyleSheet()));

   391 

   392     QDesignerPropertySheetExtension *sheet =

   393             qt_extension<QDesignerPropertySheetExtension*>(m_fw->core()->extensionManager(), m_widget);

   394     Q_ASSERT(sheet != 0);

   395     const int index = sheet->indexOf(QLatin1String(styleSheetProperty));

   396     const PropertySheetStringValue value = qVariantValue<PropertySheetStringValue>(sheet->property(index));

   397     setText(value.value());

   398 }

   399 

   400 void StyleSheetPropertyEditorDialog::applyStyleSheet()

   401 {

   402     const PropertySheetStringValue value(text(), false);

   403     m_fw->cursor()->setWidgetProperty(m_widget, QLatin1String(styleSheetProperty), qVariantFromValue(value));

   404 }

   405 

   406 } // namespace qdesigner_internal

   407 

   408 QT_END_NAMESPACE