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Diffstat (limited to 'tools/designer/src/components/widgetbox/widgetbox_dnditem.cpp')
| -rw-r--r-- | tools/designer/src/components/widgetbox/widgetbox_dnditem.cpp | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/tools/designer/src/components/widgetbox/widgetbox_dnditem.cpp b/tools/designer/src/components/widgetbox/widgetbox_dnditem.cpp new file mode 100644 index 0000000..1dc63a5 --- /dev/null +++ b/tools/designer/src/components/widgetbox/widgetbox_dnditem.cpp @@ -0,0 +1,215 @@ +/**************************************************************************** +** +** 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 "widgetbox_dnditem.h" +#include "ui4_p.h" + +#include <widgetfactory_p.h> +#include <spacer_widget_p.h> +#include <qdesigner_formbuilder_p.h> +#include <qtresourcemodel_p.h> +#include <formscriptrunner_p.h> +#include <formwindowbase_p.h> +#include <qdesigner_utils_p.h> +#include <qdesigner_dockwidget_p.h> + +#include <QtDesigner/QDesignerFormEditorInterface> +#include <QtDesigner/QDesignerFormWindowManagerInterface> + +#include <QtGui/QStyle> +#include <QtGui/QApplication> + +QT_BEGIN_NAMESPACE + +namespace qdesigner_internal { +/******************************************************************************* +** WidgetBoxResource +*/ + +static inline DeviceProfile currentDeviceProfile(const QDesignerFormEditorInterface *core) +{ + if (QDesignerFormWindowInterface *cfw = core->formWindowManager()->activeFormWindow()) + if (const FormWindowBase *fwb = qobject_cast<const FormWindowBase *>(cfw)) + return fwb->deviceProfile(); + return DeviceProfile(); +} + +class WidgetBoxResource : public QDesignerFormBuilder +{ +public: + WidgetBoxResource(QDesignerFormEditorInterface *core); + + // protected->public + QWidget *createUI(DomUI *ui, QWidget *parents) { return QDesignerFormBuilder::create(ui, parents); } + +protected: + + virtual QWidget *create(DomWidget *ui_widget, QWidget *parents); + virtual QWidget *createWidget(const QString &widgetName, QWidget *parentWidget, const QString &name); +}; + +WidgetBoxResource::WidgetBoxResource(QDesignerFormEditorInterface *core) : + QDesignerFormBuilder(core, DisableScripts, currentDeviceProfile(core)) +{ +} + + +QWidget *WidgetBoxResource::createWidget(const QString &widgetName, QWidget *parentWidget, const QString &name) +{ + if (widgetName == QLatin1String("Spacer")) { + Spacer *spacer = new Spacer(parentWidget); + spacer->setObjectName(name); + return spacer; + } + + return QDesignerFormBuilder::createWidget(widgetName, parentWidget, name); +} + +QWidget *WidgetBoxResource::create(DomWidget *ui_widget, QWidget *parent) +{ + QWidget *result = QDesignerFormBuilder::create(ui_widget, parent); + // It is possible to have a syntax error or something in custom + // widget XML, so, try to recover here by creating an artificial + // top level + widget. + if (!result) { + const QString msg = QApplication::translate("qdesigner_internal::WidgetBox", "Warning: Widget creation failed in the widget box. This could be caused by invalid custom widget XML."); + qdesigner_internal::designerWarning(msg); + result = new QWidget(parent); + new QWidget(result); + } + result->setFocusPolicy(Qt::NoFocus); + result->setObjectName(ui_widget->attributeName()); + return result; +} + +/******************************************************************************* +** WidgetBoxResource +*/ + +static QSize geometryProp(const DomWidget *dw) +{ + const QList<DomProperty*> prop_list = dw->elementProperty(); + const QString geometry = QLatin1String("geometry"); + foreach (DomProperty *prop, prop_list) { + if (prop->attributeName() != geometry) + continue; + DomRect *dr = prop->elementRect(); + if (dr == 0) + continue; + return QSize(dr->elementWidth(), dr->elementHeight()); + } + return QSize(); +} + +static QSize domWidgetSize(const DomWidget *dw) +{ + QSize size = geometryProp(dw); + if (size.isValid()) + return size; + + foreach (const DomWidget *child, dw->elementWidget()) { + size = geometryProp(child); + if (size.isValid()) + return size; + } + + foreach (const DomLayout *dl, dw->elementLayout()) { + foreach (DomLayoutItem *item, dl->elementItem()) { + const DomWidget *child = item->elementWidget(); + if (child == 0) + continue; + size = geometryProp(child); + if (size.isValid()) + return size; + } + } + + return QSize(); +} + +static QWidget *decorationFromDomWidget(DomUI *dom_ui, QDesignerFormEditorInterface *core) +{ + WidgetBoxResource builder(core); + // We have the builder create the articial QWidget fake top level as a tooltip + // because the size algorithm works better at weird DPI settings + // if the actual widget is created as a child of a container + QWidget *fakeTopLevel = builder.createUI(dom_ui, static_cast<QWidget*>(0)); + fakeTopLevel->setParent(0, Qt::ToolTip); // Container + // Actual widget + const DomWidget *domW = dom_ui->elementWidget()->elementWidget().front(); + QWidget *w = qFindChildren<QWidget*>(fakeTopLevel).front(); + Q_ASSERT(w); + // hack begin; + // We set _q_dockDrag dynamic property which will be detected in drag enter event of form window. + // Dock drop is handled in special way (highlight goes to central widget of main window) + if (qobject_cast<QDesignerDockWidget *>(w)) + fakeTopLevel->setProperty("_q_dockDrag", QVariant(true)); + // hack end; + w->setAutoFillBackground(true); // Different style for embedded + QSize size = domWidgetSize(domW); + const QSize minimumSize = w->minimumSizeHint(); + if (!size.isValid()) + size = w->sizeHint(); + if (size.width() < minimumSize.width()) + size.setWidth(minimumSize.width()); + if (size.height() < minimumSize.height()) + size.setHeight(minimumSize.height()); + // A QWidget might have size -1,-1 if no geometry property is specified in the widget box. + if (size.isEmpty()) + size = size.expandedTo(QSize(16, 16)); + w->setGeometry(QRect(QPoint(0, 0), size)); + fakeTopLevel->resize(size); + return fakeTopLevel; +} + +WidgetBoxDnDItem::WidgetBoxDnDItem(QDesignerFormEditorInterface *core, + DomUI *dom_ui, + const QPoint &global_mouse_pos) : + QDesignerDnDItem(CopyDrop) +{ + QWidget *decoration = decorationFromDomWidget(dom_ui, core); + decoration->move(global_mouse_pos - QPoint(5, 5)); + + init(dom_ui, 0, decoration, global_mouse_pos); +} +} + +QT_END_NAMESPACE |