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/****************************************************************************
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**
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Designer of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "newformwidget_p.h"
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#include "ui_newformwidget.h"
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#include "qdesigner_formbuilder_p.h"
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#include "sheet_delegate_p.h"
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#include "widgetdatabase_p.h"
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#include "shared_settings_p.h"
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#include <QtDesigner/QDesignerFormEditorInterface>
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#include <QtDesigner/QDesignerFormWindowInterface>
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#include <QtDesigner/QExtensionManager>
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#include <QtDesigner/QDesignerLanguageExtension>
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#include <QtDesigner/QDesignerWidgetDataBaseInterface>
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#include <QtCore/QDir>
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#include <QtCore/QFile>
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#include <QtCore/QFileInfo>
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#include <QtCore/QDebug>
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#include <QtCore/QByteArray>
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#include <QtCore/QBuffer>
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#include <QtCore/QDir>
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#include <QtCore/QTextStream>
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#include <QtGui/QHeaderView>
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#include <QtGui/QTreeWidgetItem>
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#include <QtGui/QPainter>
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#include <QtGui/QPushButton>
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QT_BEGIN_NAMESPACE
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enum { profileComboIndexOffset = 1 };
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enum { debugNewFormWidget = 0 };
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enum NewForm_CustomRole {
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// File name (templates from resources, paths)
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TemplateNameRole = Qt::UserRole + 100,
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// Class name (widgets from Widget data base)
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ClassNameRole = Qt::UserRole + 101
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};
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static const char *newFormObjectNameC = "Form";
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// Create a form name for an arbitrary class. If it is Qt, qtify it,
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// else return "Form".
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static QString formName(const QString &className)
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{
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if (!className.startsWith(QLatin1Char('Q')))
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return QLatin1String(newFormObjectNameC);
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QString rc = className;
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rc.remove(0, 1);
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return rc;
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}
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namespace qdesigner_internal {
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struct TemplateSize {
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const char *name;
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int width;
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int height;
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};
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static const struct TemplateSize templateSizes[] =
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{
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{ QT_TRANSLATE_NOOP("qdesigner_internal::NewFormWidget", "Default size"), 0, 0 },
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{ QT_TRANSLATE_NOOP("qdesigner_internal::NewFormWidget", "QVGA portrait (240x320)"), 240, 320 },
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{ QT_TRANSLATE_NOOP("qdesigner_internal::NewFormWidget", "QVGA landscape (320x240)"), 320, 240 },
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{ QT_TRANSLATE_NOOP("qdesigner_internal::NewFormWidget", "VGA portrait (480x640)"), 480, 640 },
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{ QT_TRANSLATE_NOOP("qdesigner_internal::NewFormWidget", "VGA landscape (640x480)"), 640, 480 }
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};
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/* -------------- NewForm dialog.
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* Designer takes new form templates from:
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* 1) Files located in directories specified in resources
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* 2) Files located in directories specified as user templates
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* 3) XML from container widgets deemed usable for form templates by the widget
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* database
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* 4) XML from custom container widgets deemed usable for form templates by the
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* widget database
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*
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* The widget database provides helper functions to obtain lists of names
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* and xml for 3,4.
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*
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* Fixed-size forms for embedded platforms are obtained as follows:
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* 1) If the origin is a file:
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* - Check if the file exists in the subdirectory "/<width>x<height>/" of
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* the path (currently the case for the dialog box because the button box
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* needs to be positioned)
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* - Scale the form using the QWidgetDatabase::scaleFormTemplate routine.
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* 2) If the origin is XML:
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* - Scale the form using the QWidgetDatabase::scaleFormTemplate routine.
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*
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* The tree widget item roles indicate which type of entry it is
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* (TemplateNameRole = file name 1,2, ClassNameRole = class name 3,4)
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*/
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NewFormWidget::NewFormWidget(QDesignerFormEditorInterface *core, QWidget *parentWidget) :
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QDesignerNewFormWidgetInterface(parentWidget),
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m_core(core),
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m_ui(new Ui::NewFormWidget),
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m_currentItem(0),
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m_acceptedItem(0)
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{
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typedef QList<qdesigner_internal::DeviceProfile> DeviceProfileList;
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m_ui->setupUi(this);
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m_ui->treeWidget->setItemDelegate(new qdesigner_internal::SheetDelegate(m_ui->treeWidget, this));
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m_ui->treeWidget->header()->hide();
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m_ui->treeWidget->header()->setStretchLastSection(true);
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m_ui->lblPreview->setBackgroundRole(QPalette::Base);
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QDesignerSharedSettings settings(m_core);
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QString uiExtension = QLatin1String("ui");
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QString templatePath = QLatin1String(":/trolltech/designer/templates/forms");
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QDesignerLanguageExtension *lang = qt_extension<QDesignerLanguageExtension *>(core->extensionManager(), core);
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if (lang) {
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templatePath = QLatin1String(":/templates/forms");
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uiExtension = lang->uiExtension();
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}
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// Resource templates
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const QString formTemplate = settings.formTemplate();
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QTreeWidgetItem *selectedItem = 0;
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loadFrom(templatePath, true, uiExtension, formTemplate, selectedItem);
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// Additional template paths
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const QStringList formTemplatePaths = settings.formTemplatePaths();
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const QStringList::const_iterator ftcend = formTemplatePaths.constEnd();
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for (QStringList::const_iterator it = formTemplatePaths.constBegin(); it != ftcend; ++it)
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loadFrom(*it, false, uiExtension, formTemplate, selectedItem);
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// Widgets/custom widgets
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if (!lang) {
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//: New Form Dialog Categories
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loadFrom(tr("Widgets"), qdesigner_internal::WidgetDataBase::formWidgetClasses(core), formTemplate, selectedItem);
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loadFrom(tr("Custom Widgets"), qdesigner_internal::WidgetDataBase::customFormWidgetClasses(core), formTemplate, selectedItem);
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}
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// Still no selection - default to first item
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if (selectedItem == 0 && m_ui->treeWidget->topLevelItemCount() != 0) {
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QTreeWidgetItem *firstTopLevel = m_ui->treeWidget->topLevelItem(0);
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if (firstTopLevel->childCount() > 0)
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selectedItem = firstTopLevel->child(0);
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}
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// Open parent, select and make visible
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if (selectedItem) {
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m_ui->treeWidget->setCurrentItem(selectedItem);
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m_ui->treeWidget->setItemSelected(selectedItem, true);
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m_ui->treeWidget->scrollToItem(selectedItem->parent());
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}
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// Fill profile combo
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m_deviceProfiles = settings.deviceProfiles();
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m_ui->profileComboBox->addItem(tr("None"));
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connect(m_ui->profileComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(slotDeviceProfileIndexChanged(int)));
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if (m_deviceProfiles.empty()) {
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m_ui->profileComboBox->setEnabled(false);
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} else {
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const DeviceProfileList::const_iterator dcend = m_deviceProfiles.constEnd();
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for (DeviceProfileList::const_iterator it = m_deviceProfiles.constBegin(); it != dcend; ++it)
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m_ui->profileComboBox->addItem(it->name());
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const int ci = settings.currentDeviceProfileIndex();
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if (ci >= 0)
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m_ui->profileComboBox->setCurrentIndex(ci + profileComboIndexOffset);
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}
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// Fill size combo
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const int sizeCount = sizeof(templateSizes)/ sizeof(TemplateSize);
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for (int i = 0; i < sizeCount; i++) {
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const QSize size = QSize(templateSizes[i].width, templateSizes[i].height);
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m_ui->sizeComboBox->addItem(tr(templateSizes[i].name), size);
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}
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setTemplateSize(settings.newFormSize());
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if (debugNewFormWidget)
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qDebug() << Q_FUNC_INFO << "Leaving";
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}
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NewFormWidget::~NewFormWidget()
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{
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QDesignerSharedSettings settings (m_core);
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settings.setNewFormSize(templateSize());
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// Do not change previously stored item if dialog was rejected
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if (m_acceptedItem)
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settings.setFormTemplate(m_acceptedItem->text(0));
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delete m_ui;
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}
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void NewFormWidget::on_treeWidget_currentItemChanged(QTreeWidgetItem *current, QTreeWidgetItem *)
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{
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if (debugNewFormWidget)
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qDebug() << Q_FUNC_INFO << current;
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if (!current)
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return;
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if (!current->parent()) { // Top level item: Ensure expanded when browsing down
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return;
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}
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m_currentItem = current;
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emit currentTemplateChanged(showCurrentItemPixmap());
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}
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bool NewFormWidget::showCurrentItemPixmap()
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{
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bool rc = false;
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if (m_currentItem) {
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const QPixmap pixmap = formPreviewPixmap(m_currentItem);
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if (pixmap.isNull()) {
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m_ui->lblPreview->setText(tr("Error loading form"));
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} else {
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m_ui->lblPreview->setPixmap(pixmap);
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rc = true;
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}
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}
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return rc;
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}
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void NewFormWidget::on_treeWidget_itemActivated(QTreeWidgetItem *item)
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{
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if (debugNewFormWidget)
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qDebug() << Q_FUNC_INFO << item;
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if (item->data(0, TemplateNameRole).isValid() || item->data(0, ClassNameRole).isValid())
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emit templateActivated();
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}
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QPixmap NewFormWidget::formPreviewPixmap(const QTreeWidgetItem *item)
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{
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// Cache pixmaps per item/device profile
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const ItemPixmapCacheKey cacheKey(item, profileComboIndex());
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ItemPixmapCache::iterator it = m_itemPixmapCache.find(cacheKey);
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if (it == m_itemPixmapCache.end()) {
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// file or string?
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const QVariant fileName = item->data(0, TemplateNameRole);
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QPixmap rc;
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if (fileName.type() == QVariant::String) {
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rc = formPreviewPixmap(fileName.toString());
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} else {
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const QVariant classNameV = item->data(0, ClassNameRole);
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Q_ASSERT(classNameV.type() == QVariant::String);
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const QString className = classNameV.toString();
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QByteArray data = qdesigner_internal::WidgetDataBase::formTemplate(m_core, className, formName(className)).toUtf8();
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QBuffer buffer(&data);
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buffer.open(QIODevice::ReadOnly);
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rc = formPreviewPixmap(buffer);
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}
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if (rc.isNull()) // Retry invalid ones
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return rc;
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it = m_itemPixmapCache.insert(cacheKey, rc);
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}
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return it.value();
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}
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QPixmap NewFormWidget::formPreviewPixmap(const QString &fileName) const
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{
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QFile f(fileName);
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if (f.open(QFile::ReadOnly)) {
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QFileInfo fi(fileName);
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const QPixmap rc = formPreviewPixmap(f, fi.absolutePath());
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f.close();
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return rc;
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}
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qWarning() << "The file " << fileName << " could not be opened: " << f.errorString();
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return QPixmap();
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}
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QImage NewFormWidget::grabForm(QDesignerFormEditorInterface *core,
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QIODevice &file,
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const QString &workingDir,
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const qdesigner_internal::DeviceProfile &dp)
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{
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qdesigner_internal::NewFormWidgetFormBuilder
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formBuilder(core, qdesigner_internal::QDesignerFormBuilder::DisableScripts, dp);
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if (!workingDir.isEmpty())
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formBuilder.setWorkingDirectory(workingDir);
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QWidget *widget = formBuilder.load(&file, 0);
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if (!widget)
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return QImage();
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const QPixmap pixmap = QPixmap::grabWidget(widget);
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widget->deleteLater();
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return pixmap.toImage();
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}
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QPixmap NewFormWidget::formPreviewPixmap(QIODevice &file, const QString &workingDir) const
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{
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const int margin = 7;
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const int shadow = 7;
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const int previewSize = 256;
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const QImage wimage = grabForm(m_core, file, workingDir, currentDeviceProfile());
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if (wimage.isNull())
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return QPixmap();
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const QImage image = wimage.scaled(previewSize - margin * 2, previewSize - margin * 2,
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Qt::KeepAspectRatio,
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Qt::SmoothTransformation);
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QImage dest(previewSize, previewSize, QImage::Format_ARGB32_Premultiplied);
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dest.fill(0);
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QPainter p(&dest);
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p.drawImage(margin, margin, image);
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p.setPen(QPen(palette().brush(QPalette::WindowText), 0));
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p.drawRect(margin-1, margin-1, image.width() + 1, image.height() + 1);
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const QColor dark(Qt::darkGray);
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const QColor light(Qt::transparent);
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// right shadow
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{
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const QRect rect(margin + image.width() + 1, margin + shadow, shadow, image.height() - shadow + 1);
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QLinearGradient lg(rect.topLeft(), rect.topRight());
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lg.setColorAt(0, dark);
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lg.setColorAt(1, light);
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p.fillRect(rect, lg);
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}
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// bottom shadow
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{
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const QRect rect(margin + shadow, margin + image.height() + 1, image.width() - shadow + 1, shadow);
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QLinearGradient lg(rect.topLeft(), rect.bottomLeft());
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lg.setColorAt(0, dark);
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lg.setColorAt(1, light);
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p.fillRect(rect, lg);
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}
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// bottom/right corner shadow
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{
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const QRect rect(margin + image.width() + 1, margin + image.height() + 1, shadow, shadow);
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QRadialGradient g(rect.topLeft(), shadow);
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g.setColorAt(0, dark);
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g.setColorAt(1, light);
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p.fillRect(rect, g);
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}
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// top/right corner
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{
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const QRect rect(margin + image.width() + 1, margin, shadow, shadow);
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QRadialGradient g(rect.bottomLeft(), shadow);
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g.setColorAt(0, dark);
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g.setColorAt(1, light);
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p.fillRect(rect, g);
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}
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// bottom/left corner
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{
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const QRect rect(margin, margin + image.height() + 1, shadow, shadow);
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QRadialGradient g(rect.topRight(), shadow);
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g.setColorAt(0, dark);
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|
394 |
g.setColorAt(1, light);
|
|
395 |
p.fillRect(rect, g);
|
|
396 |
}
|
|
397 |
|
|
398 |
p.end();
|
|
399 |
|
|
400 |
return QPixmap::fromImage(dest);
|
|
401 |
}
|
|
402 |
|
|
403 |
void NewFormWidget::loadFrom(const QString &path, bool resourceFile, const QString &uiExtension,
|
|
404 |
const QString &selectedItem, QTreeWidgetItem *&selectedItemFound)
|
|
405 |
{
|
|
406 |
const QDir dir(path);
|
|
407 |
|
|
408 |
if (!dir.exists())
|
|
409 |
return;
|
|
410 |
|
|
411 |
// Iterate through the directory and add the templates
|
|
412 |
const QFileInfoList list = dir.entryInfoList(QStringList(QLatin1String("*.") + uiExtension),
|
|
413 |
QDir::Files);
|
|
414 |
|
|
415 |
if (list.isEmpty())
|
|
416 |
return;
|
|
417 |
|
|
418 |
const QChar separator = resourceFile ? QChar(QLatin1Char('/'))
|
|
419 |
: QDir::separator();
|
|
420 |
QTreeWidgetItem *root = new QTreeWidgetItem(m_ui->treeWidget);
|
|
421 |
root->setFlags(root->flags() & ~Qt::ItemIsSelectable);
|
|
422 |
// Try to get something that is easy to read.
|
|
423 |
QString visiblePath = path;
|
|
424 |
int index = visiblePath.lastIndexOf(separator);
|
|
425 |
if (index != -1) {
|
|
426 |
// try to find a second slash, just to be a bit better.
|
|
427 |
const int index2 = visiblePath.lastIndexOf(separator, index - 1);
|
|
428 |
if (index2 != -1)
|
|
429 |
index = index2;
|
|
430 |
visiblePath = visiblePath.mid(index + 1);
|
|
431 |
visiblePath = QDir::toNativeSeparators(visiblePath);
|
|
432 |
}
|
|
433 |
|
|
434 |
const QChar underscore = QLatin1Char('_');
|
|
435 |
const QChar blank = QLatin1Char(' ');
|
|
436 |
root->setText(0, visiblePath.replace(underscore, blank));
|
|
437 |
root->setToolTip(0, path);
|
|
438 |
|
|
439 |
const QFileInfoList::const_iterator lcend = list.constEnd();
|
|
440 |
for (QFileInfoList::const_iterator it = list.constBegin(); it != lcend; ++it) {
|
|
441 |
if (!it->isFile())
|
|
442 |
continue;
|
|
443 |
|
|
444 |
QTreeWidgetItem *item = new QTreeWidgetItem(root);
|
|
445 |
const QString text = it->baseName().replace(underscore, blank);
|
|
446 |
if (selectedItemFound == 0 && text == selectedItem)
|
|
447 |
selectedItemFound = item;
|
|
448 |
item->setText(0, text);
|
|
449 |
item->setData(0, TemplateNameRole, it->absoluteFilePath());
|
|
450 |
}
|
|
451 |
}
|
|
452 |
|
|
453 |
void NewFormWidget::loadFrom(const QString &title, const QStringList &nameList,
|
|
454 |
const QString &selectedItem, QTreeWidgetItem *&selectedItemFound)
|
|
455 |
{
|
|
456 |
if (nameList.empty())
|
|
457 |
return;
|
|
458 |
QTreeWidgetItem *root = new QTreeWidgetItem(m_ui->treeWidget);
|
|
459 |
root->setFlags(root->flags() & ~Qt::ItemIsSelectable);
|
|
460 |
root->setText(0, title);
|
|
461 |
const QStringList::const_iterator cend = nameList.constEnd();
|
|
462 |
for (QStringList::const_iterator it = nameList.constBegin(); it != cend; ++it) {
|
|
463 |
const QString text = *it;
|
|
464 |
QTreeWidgetItem *item = new QTreeWidgetItem(root);
|
|
465 |
item->setText(0, text);
|
|
466 |
if (selectedItemFound == 0 && text == selectedItem)
|
|
467 |
selectedItemFound = item;
|
|
468 |
item->setData(0, ClassNameRole, *it);
|
|
469 |
}
|
|
470 |
}
|
|
471 |
|
|
472 |
void NewFormWidget::on_treeWidget_itemPressed(QTreeWidgetItem *item)
|
|
473 |
{
|
|
474 |
if (item && !item->parent())
|
|
475 |
m_ui->treeWidget->setItemExpanded(item, !m_ui->treeWidget->isItemExpanded(item));
|
|
476 |
}
|
|
477 |
|
|
478 |
QSize NewFormWidget::templateSize() const
|
|
479 |
{
|
|
480 |
return m_ui->sizeComboBox->itemData(m_ui->sizeComboBox->currentIndex()).toSize();
|
|
481 |
}
|
|
482 |
|
|
483 |
void NewFormWidget::setTemplateSize(const QSize &s)
|
|
484 |
{
|
|
485 |
const int index = s.isNull() ? 0 : m_ui->sizeComboBox->findData(s);
|
|
486 |
if (index != -1)
|
|
487 |
m_ui->sizeComboBox->setCurrentIndex(index);
|
|
488 |
}
|
|
489 |
|
|
490 |
static QString readAll(const QString &fileName, QString *errorMessage)
|
|
491 |
{
|
|
492 |
QFile file(fileName);
|
|
493 |
if (!file.open(QIODevice::ReadOnly|QIODevice::Text)) {
|
|
494 |
*errorMessage = NewFormWidget::tr("Unable to open the form template file '%1': %2").arg(fileName, file.errorString());
|
|
495 |
return QString();
|
|
496 |
}
|
|
497 |
return QString::fromUtf8(file.readAll());
|
|
498 |
}
|
|
499 |
|
|
500 |
QString NewFormWidget::itemToTemplate(const QTreeWidgetItem *item, QString *errorMessage) const
|
|
501 |
{
|
|
502 |
const QSize size = templateSize();
|
|
503 |
// file name or string contents?
|
|
504 |
const QVariant templateFileName = item->data(0, TemplateNameRole);
|
|
505 |
if (templateFileName.type() == QVariant::String) {
|
|
506 |
const QString fileName = templateFileName.toString();
|
|
507 |
// No fixed size: just open.
|
|
508 |
if (size.isNull())
|
|
509 |
return readAll(fileName, errorMessage);
|
|
510 |
// try to find a file matching the size, like "../640x480/xx.ui"
|
|
511 |
const QFileInfo fiBase(fileName);
|
|
512 |
QString sizeFileName;
|
|
513 |
QTextStream(&sizeFileName) << fiBase.path() << QDir::separator()
|
|
514 |
<< size.width() << QLatin1Char('x') << size.height() << QDir::separator()
|
|
515 |
<< fiBase.fileName();
|
|
516 |
if (QFileInfo(sizeFileName).isFile())
|
|
517 |
return readAll(sizeFileName, errorMessage);
|
|
518 |
// Nothing found, scale via DOM/temporary file
|
|
519 |
QString contents = readAll(fileName, errorMessage);
|
|
520 |
if (!contents.isEmpty())
|
|
521 |
contents = qdesigner_internal::WidgetDataBase::scaleFormTemplate(contents, size, false);
|
|
522 |
return contents;
|
|
523 |
}
|
|
524 |
// Content.
|
|
525 |
const QString className = item->data(0, ClassNameRole).toString();
|
|
526 |
QString contents = qdesigner_internal::WidgetDataBase::formTemplate(m_core, className, formName(className));
|
|
527 |
if (!size.isNull())
|
|
528 |
contents = qdesigner_internal::WidgetDataBase::scaleFormTemplate(contents, size, false);
|
|
529 |
return contents;
|
|
530 |
}
|
|
531 |
|
|
532 |
void NewFormWidget::slotDeviceProfileIndexChanged(int idx)
|
|
533 |
{
|
|
534 |
// Store index for form windows to take effect and refresh pixmap
|
|
535 |
QDesignerSharedSettings settings(m_core);
|
|
536 |
settings.setCurrentDeviceProfileIndex(idx - profileComboIndexOffset);
|
|
537 |
showCurrentItemPixmap();
|
|
538 |
}
|
|
539 |
|
|
540 |
int NewFormWidget::profileComboIndex() const
|
|
541 |
{
|
|
542 |
return m_ui->profileComboBox->currentIndex();
|
|
543 |
}
|
|
544 |
|
|
545 |
qdesigner_internal::DeviceProfile NewFormWidget::currentDeviceProfile() const
|
|
546 |
{
|
|
547 |
const int ci = profileComboIndex();
|
|
548 |
if (ci > 0)
|
|
549 |
return m_deviceProfiles.at(ci - profileComboIndexOffset);
|
|
550 |
return qdesigner_internal::DeviceProfile();
|
|
551 |
}
|
|
552 |
|
|
553 |
bool NewFormWidget::hasCurrentTemplate() const
|
|
554 |
{
|
|
555 |
return m_currentItem != 0;
|
|
556 |
}
|
|
557 |
|
|
558 |
QString NewFormWidget::currentTemplateI(QString *ptrToErrorMessage)
|
|
559 |
{
|
|
560 |
if (m_currentItem == 0) {
|
|
561 |
*ptrToErrorMessage = tr("Internal error: No template selected.");
|
|
562 |
return QString();
|
|
563 |
}
|
|
564 |
const QString contents = itemToTemplate(m_currentItem, ptrToErrorMessage);
|
|
565 |
if (contents.isEmpty())
|
|
566 |
return contents;
|
|
567 |
|
|
568 |
m_acceptedItem = m_currentItem;
|
|
569 |
return contents;
|
|
570 |
}
|
|
571 |
|
|
572 |
QString NewFormWidget::currentTemplate(QString *ptrToErrorMessage)
|
|
573 |
{
|
|
574 |
if (ptrToErrorMessage)
|
|
575 |
return currentTemplateI(ptrToErrorMessage);
|
|
576 |
// Do not loose the error
|
|
577 |
QString errorMessage;
|
|
578 |
const QString contents = currentTemplateI(&errorMessage);
|
|
579 |
if (!errorMessage.isEmpty())
|
|
580 |
qWarning("%s", errorMessage.toUtf8().constData());
|
|
581 |
return contents;
|
|
582 |
}
|
|
583 |
|
|
584 |
}
|
|
585 |
|
|
586 |
QT_END_NAMESPACE
|