qdesigner_integration.cpp

来自「奇趣公司比较新的qt/emd版本」· C++ 代码 · 共 345 行

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**
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** This file is part of the Qt Designer of the Qt Toolkit.
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#include "qdesigner_integration_p.h"
#include "qdesigner_propertycommand_p.h"
#include "qdesigner_propertycommentcommand_p.h"
#include "qdesigner_propertyeditor_p.h"
#include "qdesigner_objectinspector_p.h"
#include "widgetdatabase_p.h"
#include "pluginmanager_p.h"
#include "widgetfactory_p.h"
#include "qdesigner_widgetbox_p.h"

// sdk
#include <QtDesigner/QDesignerFormEditorInterface>
#include <QtDesigner/QDesignerFormWindowInterface>
#include <QtDesigner/QDesignerFormWindowManagerInterface>
#include <QtDesigner/QDesignerFormWindowCursorInterface>
#include <QtDesigner/QDesignerActionEditorInterface>
#include <QtDesigner/QDesignerWidgetBoxInterface>
#include <QtDesigner/QExtensionManager>

#include <QtCore/QVariant>

#include <QtCore/qdebug.h>

namespace qdesigner_internal {

QDesignerIntegration::QDesignerIntegration(QDesignerFormEditorInterface *core, QObject *parent)
    : QDesignerIntegrationInterface(core, parent)
{
    initialize();
}

QDesignerIntegration::~QDesignerIntegration()
{
}

void QDesignerIntegration::initialize()
{
    //
    // integrate the `Form Editor component'
    //
    connect(core()->propertyEditor(), SIGNAL(propertyChanged(QString,QVariant)),
            this, SLOT(updateProperty(QString,QVariant)));


    // Extensions
    if (QDesignerPropertyEditor *designerPropertyEditor= qobject_cast<QDesignerPropertyEditor *>(core()->propertyEditor())) {
        connect(designerPropertyEditor, SIGNAL(propertyCommentChanged(QString, QString)), this, SLOT(updatePropertyComment(QString, QString)));
        connect(designerPropertyEditor, SIGNAL(resetProperty(QString)), this, SLOT(resetProperty(QString)));
        connect(designerPropertyEditor, SIGNAL(addDynamicProperty(QString,QVariant)),
                this, SLOT(addDynamicProperty(QString,QVariant)));
        connect(designerPropertyEditor, SIGNAL(removeDynamicProperty(QString)),
                this, SLOT(removeDynamicProperty(QString)));
    }

    connect(core()->formWindowManager(), SIGNAL(formWindowAdded(QDesignerFormWindowInterface*)),
            this, SLOT(setupFormWindow(QDesignerFormWindowInterface*)));

    connect(core()->formWindowManager(), SIGNAL(activeFormWindowChanged(QDesignerFormWindowInterface*)),
            this, SLOT(updateActiveFormWindow(QDesignerFormWindowInterface*)));
}

void QDesignerIntegration::updateProperty(const QString &name, const QVariant &value)
{
    QDesignerFormWindowInterface *formWindow = core()->formWindowManager()->activeFormWindow();
    if (!formWindow)
        return;

    Selection selection;
    getSelection(selection);
    if (selection.empty())
        return;
    // Legacy: set properties on widgets via cursor
    if (!selection.m_cursorSelection.empty() && selection.m_selectedObjects.empty()) {
        QDesignerFormWindowCursorInterface *cursor = formWindow->cursor();
        cursor->setProperty(name, value);
    } else {
        SetPropertyCommand *cmd = new SetPropertyCommand(formWindow);
        // find a reference object to compare to and to find the right group
        if (cmd->init(selection.selection(), name, value, propertyEditorObject())) {
            formWindow->commandHistory()->push(cmd);
        } else {
            delete cmd;
            qDebug() << "Unable to set  property " << name << '.';
        }
    }

    emit propertyChanged(formWindow, name, value);
}

void QDesignerIntegration::updatePropertyComment(const QString &name, const QString &value)
{
    QDesignerFormWindowInterface *formWindow = core()->formWindowManager()->activeFormWindow();
    if (!formWindow)
        return;

    Selection selection;
    getSelection(selection);
    if (selection.empty())
        return;

    SetPropertyCommentCommand *cmd = new SetPropertyCommentCommand(formWindow);
    if (cmd->init(selection.selection(), name, value)) {
        formWindow->commandHistory()->push(cmd);
    } else {
        delete cmd;
        qDebug() << "** WARNING Unable to update property comment of " << name << '.';
    }

}

void QDesignerIntegration::resetProperty(const QString &name)
{
    QDesignerFormWindowInterface *formWindow = core()->formWindowManager()->activeFormWindow();
    if (!formWindow)
        return;

    Selection selection;
    getSelection(selection);
    if (selection.empty())
        return;


    ResetPropertyCommand *cmd = new ResetPropertyCommand(formWindow);
    // find a reference object to find the right group
    if (cmd->init(selection.selection(), name, propertyEditorObject())) {
        formWindow->commandHistory()->push(cmd);
    } else {
        delete cmd;
        qDebug() << "** WARNING Unable to reset property " << name << '.';
    }
}

void QDesignerIntegration::addDynamicProperty(const QString &name, const QVariant &value)
{
    QDesignerFormWindowInterface *formWindow = core()->formWindowManager()->activeFormWindow();
    if (!formWindow)
        return;

    Selection selection;
    getSelection(selection);
    if (selection.empty())
        return;

    AddDynamicPropertyCommand *cmd = new AddDynamicPropertyCommand(formWindow);
    if (cmd->init(selection.selection(), propertyEditorObject(), name, value)) {
        formWindow->commandHistory()->push(cmd);
    } else {
        delete cmd;
        qDebug() <<  "** WARNING Unable to add dynamic property " << name << '.';
    }
}

void QDesignerIntegration::removeDynamicProperty(const QString &name)
{
    QDesignerFormWindowInterface *formWindow = core()->formWindowManager()->activeFormWindow();
    if (!formWindow)
        return;

    Selection selection;
    getSelection(selection);
    if (selection.empty())
        return;

    RemoveDynamicPropertyCommand *cmd = new RemoveDynamicPropertyCommand(formWindow);
    if (cmd->init(selection.selection(), propertyEditorObject(), name)) {
        formWindow->commandHistory()->push(cmd);
    } else {
        delete cmd;
        qDebug() << "** WARNING Unable to remove dynamic property " << name << '.';
    }

}


void QDesignerIntegration::updateActiveFormWindow(QDesignerFormWindowInterface *formWindow)
{
    Q_UNUSED(formWindow);
    updateSelection();
}

void QDesignerIntegration::setupFormWindow(QDesignerFormWindowInterface *formWindow)
{
    connect(formWindow, SIGNAL(selectionChanged()), this, SLOT(updateSelection()));
    connect(formWindow, SIGNAL(activated(QWidget*)), this, SLOT(activateWidget(QWidget*)));
}

void QDesignerIntegration::updateGeometry()
{
}

void QDesignerIntegration::updateSelection()
{
    QDesignerFormWindowInterface *formWindow = core()->formWindowManager()->activeFormWindow();
    QWidget *selection = 0;

    if (formWindow) {
        selection = formWindow->cursor()->current();
    }

    if (QDesignerActionEditorInterface *actionEditor = core()->actionEditor())
        actionEditor->setFormWindow(formWindow);

    if (QDesignerPropertyEditorInterface *propertyEditor = core()->propertyEditor()) {
        propertyEditor->setObject(selection);
        propertyEditor->setEnabled(formWindow && formWindow->cursor()->selectedWidgetCount());
    }
    if (QDesignerObjectInspectorInterface *objectInspector = core()->objectInspector())
        objectInspector->setFormWindow(formWindow);

}

void QDesignerIntegration::activateWidget(QWidget *widget)
{
    Q_UNUSED(widget);
}

QWidget *QDesignerIntegration::containerWindow(QWidget *widget) const
{
    // Find the parent window to apply a geometry to.
    while (widget) {
        if (widget->isWindow())
            break;
        if (!qstrcmp(widget->metaObject()->className(), "QMdiSubWindow"))
            break;

        widget = widget->parentWidget();
    }

    return widget;
}

void QDesignerIntegration::getSelection(Selection &s)
{
    // Get multiselection from object inspector
    if (QDesignerObjectInspector *designerObjectInspector = qobject_cast<QDesignerObjectInspector *>(core()->objectInspector())) {
        designerObjectInspector->getSelection(s);
        // Action editor puts actions that are not on the form yet
        // into the property editor only.
        if (s.empty())
            if (QObject *object = core()->propertyEditor()->object())
                s.m_selectedObjects.push_back(object);
            
    } else {
        s.clear();
        // get single selection

        QObject *object = core()->propertyEditor()->object();
        QWidget *widget = qobject_cast<QWidget*>(object);

        QDesignerFormWindowInterface *formWindow = core()->formWindowManager()->activeFormWindow();
        if (!formWindow)
            return;
        QDesignerFormWindowCursorInterface *cursor = formWindow->cursor();

        if (widget && cursor->isWidgetSelected(widget)) {
            s.m_cursorSelection.push_back(widget);
        } else {
            s.m_selectedObjects.push_back(object);
        }
    }
}

QObject *QDesignerIntegration::propertyEditorObject()
{
    QDesignerPropertyEditorInterface *propertyEditor = core()->propertyEditor();
    if (!propertyEditor)
        return 0;
    return propertyEditor->object();
}

// Load plugins into widget database and factory.
void QDesignerIntegration::initializePlugins(QDesignerFormEditorInterface *formEditor)
{
    // load the plugins
    if (WidgetDataBase *widgetDatabase = qobject_cast<WidgetDataBase*>(formEditor->widgetDataBase())) {
        widgetDatabase->loadPlugins();
        widgetDatabase->grabDefaultPropertyValues();
    }

    if (WidgetFactory *widgetFactory = qobject_cast<WidgetFactory*>(formEditor->widgetFactory())) {
        widgetFactory->loadPlugins();
    }
}

void QDesignerIntegration::updateCustomWidgetPlugins()
{
    QDesignerFormEditorInterface *formEditor = core();
    if (QDesignerPluginManager *pm = formEditor->pluginManager())
        pm->registerNewPlugins();

    initializePlugins(formEditor);

    // Do not just reload the last file as the WidgetBox merges the compiled-in resources
    // and $HOME/.designer/widgetbox.xml. This would also double the scratchpad.
    if (QDesignerWidgetBox *wb = qobject_cast<QDesignerWidgetBox*>(formEditor->widgetBox())) {
        const QDesignerWidgetBox::LoadMode oldLoadMode = wb->loadMode();
        wb->setLoadMode(QDesignerWidgetBox::LoadCustomWidgetsOnly);
        wb->load();
        wb->setLoadMode(oldLoadMode);
    }
}

void QDesignerIntegration::emitObjectNameChanged(QDesignerFormWindowInterface *formWindow, QObject *object, const QString &name)
{
    emit objectNameChanged(formWindow, object, name);
}

} // namespace qdesigner_internal