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Diffstat (limited to 'tools/designer/src/lib/shared/deviceprofile.cpp')
| -rw-r--r-- | tools/designer/src/lib/shared/deviceprofile.cpp | 467 |
1 files changed, 467 insertions, 0 deletions
diff --git a/tools/designer/src/lib/shared/deviceprofile.cpp b/tools/designer/src/lib/shared/deviceprofile.cpp new file mode 100644 index 0000000..c512ff5 --- /dev/null +++ b/tools/designer/src/lib/shared/deviceprofile.cpp @@ -0,0 +1,467 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the Qt Designer of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, 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 are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "deviceprofile_p.h" + +#include <QtDesigner/QDesignerFormEditorInterface> +#include <widgetfactory_p.h> +#include <qdesigner_utils_p.h> + +#include <QtGui/QApplication> +#include <QtGui/QFont> +#include <QtGui/QDesktopWidget> +#include <QtGui/QStyle> +#include <QtGui/QStyleFactory> +#include <QtGui/QApplication> + +#include <QtCore/QSharedData> +#include <QtCore/QTextStream> + +#include <QtCore/QXmlStreamWriter> +#include <QtCore/QXmlStreamReader> + + +static const char *dpiXPropertyC = "_q_customDpiX"; +static const char *dpiYPropertyC = "_q_customDpiY"; + +// XML serialization +static const char *xmlVersionC="1.0"; +static const char *rootElementC="deviceprofile"; +static const char *nameElementC = "name"; +static const char *fontFamilyElementC = "fontfamily"; +static const char *fontPointSizeElementC = "fontpointsize"; +static const char *dPIXElementC = "dpix"; +static const char *dPIYElementC = "dpiy"; +static const char *styleElementC = "style"; + +/* DeviceProfile: + * For preview purposes (preview, widget box, new form dialog), the + * QDesignerFormBuilder applies the settings to the form main container + * (Point being here that the DPI must be set directly for size calculations + * to be correct). + * For editing purposes, FormWindow applies the settings to the form container + * as not to interfere with the font settings of the form main container. + * In addition, the widgetfactory maintains the system settings style + * and applies it when creating widgets. */ + +QT_BEGIN_NAMESPACE + +namespace qdesigner_internal { + +// ---------------- DeviceProfileData +class DeviceProfileData : public QSharedData { +public: + DeviceProfileData(); + void fromSystem(); + void clear(); + + QString m_fontFamily; + int m_fontPointSize; + QString m_style; + int m_dpiX; + int m_dpiY; + QString m_name; +}; + +DeviceProfileData::DeviceProfileData() : + m_fontPointSize(-1), + m_dpiX(-1), + m_dpiY(-1) +{ +} + +void DeviceProfileData::clear() +{ + m_fontPointSize = -1; + m_dpiX = 0; + m_dpiY = 0; + m_name.clear(); + m_style.clear(); +} + +void DeviceProfileData::fromSystem() +{ + const QFont appFont = QApplication::font(); + m_fontFamily = appFont.family(); + m_fontPointSize = appFont.pointSize(); + DeviceProfile::systemResolution(&m_dpiX, &m_dpiY); + m_style.clear(); +} + +// ---------------- DeviceProfile +DeviceProfile::DeviceProfile() : + m_d(new DeviceProfileData) +{ +} + +DeviceProfile::DeviceProfile(const DeviceProfile &o) : + m_d(o.m_d) + +{ +} + +DeviceProfile& DeviceProfile::operator=(const DeviceProfile &o) +{ + m_d.operator=(o.m_d); + return *this; +} + +DeviceProfile::~DeviceProfile() +{ +} + +void DeviceProfile::clear() +{ + m_d->clear(); +} + +bool DeviceProfile::isEmpty() const +{ + return m_d->m_name.isEmpty(); +} + +QString DeviceProfile::fontFamily() const +{ + return m_d->m_fontFamily; +} + +void DeviceProfile::setFontFamily(const QString &f) +{ + m_d->m_fontFamily = f; +} + +int DeviceProfile::fontPointSize() const +{ + return m_d->m_fontPointSize; +} + +void DeviceProfile::setFontPointSize(int p) +{ + m_d->m_fontPointSize = p; +} + +QString DeviceProfile::style() const +{ + return m_d->m_style; +} + +void DeviceProfile::setStyle(const QString &s) +{ + m_d->m_style = s; +} + +int DeviceProfile::dpiX() const +{ + return m_d->m_dpiX; +} + +void DeviceProfile::setDpiX(int d) +{ + m_d->m_dpiX = d; +} + +int DeviceProfile::dpiY() const +{ + return m_d->m_dpiY; +} + +void DeviceProfile::setDpiY(int d) +{ + m_d->m_dpiY = d; +} + +void DeviceProfile::fromSystem() +{ + m_d->fromSystem(); +} + +QString DeviceProfile::name() const +{ + return m_d->m_name; +} + +void DeviceProfile::setName(const QString &n) +{ + m_d->m_name = n; +} + +void DeviceProfile::systemResolution(int *dpiX, int *dpiY) +{ + const QDesktopWidget *dw = qApp->desktop(); + *dpiX = dw->logicalDpiX(); + *dpiY = dw->logicalDpiY(); +} + +class FriendlyWidget : public QWidget { + friend class DeviceProfile; +}; + +void DeviceProfile::widgetResolution(const QWidget *w, int *dpiX, int *dpiY) +{ + const FriendlyWidget *fw = static_cast<const FriendlyWidget*>(w); + *dpiX = fw->metric(QPaintDevice::PdmDpiX); + *dpiY = fw->metric(QPaintDevice::PdmDpiY); +} + +QString DeviceProfile::toString() const +{ + const DeviceProfileData &d = *m_d; + QString rc; + QTextStream(&rc) << "DeviceProfile:name=" << d.m_name << " Font=" << d.m_fontFamily << ' ' + << d.m_fontPointSize << " Style=" << d.m_style << " DPI=" << d.m_dpiX << ',' << d.m_dpiY; + return rc; +} + +// Apply font to widget +static void applyFont(const QString &family, int size, DeviceProfile::ApplyMode am, QWidget *widget) +{ + QFont currentFont = widget->font(); + if (currentFont.pointSize() == size && currentFont.family() == family) + return; + switch (am) { + case DeviceProfile::ApplyFormParent: + // Invisible form parent: Apply all + widget->setFont(QFont(family, size)); + break; + case DeviceProfile::ApplyPreview: { + // Preview: Apply only subproperties that have not been changed by designer properties + bool apply = false; + const uint resolve = currentFont.resolve(); + if (!(resolve & QFont::FamilyResolved)) { + currentFont.setFamily(family); + apply = true; + } + if (!(resolve & QFont::SizeResolved)) { + currentFont.setPointSize(size); + apply = true; + } + if (apply) + widget->setFont(currentFont); + } + break; + } +} + +void DeviceProfile::applyDPI(int dpiX, int dpiY, QWidget *widget) +{ + int sysDPIX, sysDPIY; // Set dynamic variables in case values are different from system DPI + systemResolution(&sysDPIX, &sysDPIY); + if (dpiX != sysDPIX && dpiY != sysDPIY) { + widget->setProperty(dpiXPropertyC, QVariant(dpiX)); + widget->setProperty(dpiYPropertyC, QVariant(dpiY)); + } +} + +void DeviceProfile::apply(const QDesignerFormEditorInterface *core, QWidget *widget, ApplyMode am) const +{ + if (isEmpty()) + return; + + const DeviceProfileData &d = *m_d; + + if (!d.m_fontFamily.isEmpty()) + applyFont(d.m_fontFamily, d.m_fontPointSize, am, widget); + + applyDPI(d.m_dpiX, d.m_dpiY, widget); + + if (!d.m_style.isEmpty()) { + if (WidgetFactory *wf = qobject_cast<qdesigner_internal::WidgetFactory *>(core->widgetFactory())) + wf->applyStyleTopLevel(d.m_style, widget); + } +} + +bool DeviceProfile::equals(const DeviceProfile& rhs) const +{ + const DeviceProfileData &d = *m_d; + const DeviceProfileData &rhs_d = *rhs.m_d; + return d.m_fontPointSize == rhs_d.m_fontPointSize && + d.m_dpiX == rhs_d.m_dpiX && d.m_dpiY == rhs_d.m_dpiY && d.m_fontFamily == rhs_d.m_fontFamily && + d.m_style == rhs_d.m_style && d.m_name == rhs_d.m_name; +} + +static inline void writeElement(QXmlStreamWriter &writer, const QString &element, const QString &cdata) +{ + writer.writeStartElement(element); + writer.writeCharacters(cdata); + writer.writeEndElement(); +} + +QString DeviceProfile::toXml() const +{ + const DeviceProfileData &d = *m_d; + QString rc; + QXmlStreamWriter writer(&rc); + writer.writeStartDocument(QLatin1String(xmlVersionC)); + writer.writeStartElement(QLatin1String(rootElementC)); + writeElement(writer, QLatin1String(nameElementC), d.m_name); + + if (!d.m_fontFamily.isEmpty()) + writeElement(writer, QLatin1String(fontFamilyElementC), d.m_fontFamily); + if (d.m_fontPointSize >= 0) + writeElement(writer, QLatin1String(fontPointSizeElementC), QString::number(d.m_fontPointSize)); + if (d.m_dpiX > 0) + writeElement(writer, QLatin1String(dPIXElementC), QString::number(d.m_dpiX)); + if (d.m_dpiY > 0) + writeElement(writer, QLatin1String(dPIYElementC), QString::number(d.m_dpiY)); + if (!d.m_style.isEmpty()) + writeElement(writer, QLatin1String(styleElementC), d.m_style); + + writer.writeEndElement(); + writer.writeEndDocument(); + return rc; +} + +/* Switch stages when encountering a start element (state table) */ +enum ParseStage { ParseBeginning, ParseWithinRoot, + ParseName, ParseFontFamily, ParseFontPointSize, ParseDPIX, ParseDPIY, ParseStyle, + ParseError }; + +static ParseStage nextStage(ParseStage currentStage, const QStringRef &startElement) +{ + switch (currentStage) { + case ParseBeginning: + if (startElement == QLatin1String(rootElementC)) + return ParseWithinRoot; + break; + case ParseWithinRoot: + case ParseName: + case ParseFontFamily: + case ParseFontPointSize: + case ParseDPIX: + case ParseDPIY: + case ParseStyle: + if (startElement == QLatin1String(nameElementC)) + return ParseName; + if (startElement == QLatin1String(fontFamilyElementC)) + return ParseFontFamily; + if (startElement == QLatin1String(fontPointSizeElementC)) + return ParseFontPointSize; + if (startElement == QLatin1String(dPIXElementC)) + return ParseDPIX; + if (startElement == QLatin1String(dPIYElementC)) + return ParseDPIY; + if (startElement == QLatin1String(styleElementC)) + return ParseStyle; + break; + case ParseError: + break; + } + return ParseError; +} + +static bool readIntegerElement(QXmlStreamReader &reader, int *v) +{ + const QString e = reader.readElementText(); + bool ok; + *v = e.toInt(&ok); + //: Reading a number for an embedded device profile + if (!ok) + reader.raiseError(QApplication::translate("DeviceProfile", "'%1' is not a number.").arg(e)); + return ok; +} + +bool DeviceProfile::fromXml(const QString &xml, QString *errorMessage) +{ + DeviceProfileData &d = *m_d; + d.fromSystem(); + + QXmlStreamReader reader(xml); + + ParseStage ps = ParseBeginning; + QXmlStreamReader::TokenType tt = QXmlStreamReader::NoToken; + int iv = 0; + do { + tt = reader.readNext(); + if (tt == QXmlStreamReader::StartElement) { + ps = nextStage(ps, reader.name()); + switch (ps) { + case ParseBeginning: + case ParseWithinRoot: + break; + case ParseError: + reader.raiseError(QApplication::translate("DeviceProfile", "An invalid tag <%1> was encountered.").arg(reader.name().toString())); + tt = QXmlStreamReader::Invalid; + break; + case ParseName: + d.m_name = reader.readElementText(); + break; + case ParseFontFamily: + d.m_fontFamily = reader.readElementText(); + break; + case ParseFontPointSize: + if (readIntegerElement(reader, &iv)) { + d.m_fontPointSize = iv; + } else { + tt = QXmlStreamReader::Invalid; + } + break; + case ParseDPIX: + if (readIntegerElement(reader, &iv)) { + d.m_dpiX = iv; + } else { + tt = QXmlStreamReader::Invalid; + } + break; + case ParseDPIY: + if (readIntegerElement(reader, &iv)) { + d.m_dpiY = iv; + } else { + tt = QXmlStreamReader::Invalid; + } + break; + case ParseStyle: + d.m_style = reader.readElementText(); + break; + } + } + } while (tt != QXmlStreamReader::Invalid && tt != QXmlStreamReader::EndDocument); + + if (reader.hasError()) { + *errorMessage = reader.errorString(); + return false; + } + + return true; +} +} + +QT_END_NAMESPACE + |