qdesigner_widget_p.h

来自「QT 开发环境里面一个很重要的文件」· C头文件 代码 · 共 142 行

/****************************************************************************
**
** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 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 GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at [e-mail].
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of Qt Designer.  This header
// file may change from version to version without notice, or even be removed.
//
// We mean it.
//

#ifndef QDESIGNER_WIDGET_H
#define QDESIGNER_WIDGET_H

#include "shared_global_p.h"
#include "layoutdecoration.h"

#include <QtDesigner/QDesignerMetaDataBaseInterface>

#include <QtCore/QPointer>
#include <QtCore/QPair>

#include <QtGui/QGridLayout>
#include <QtGui/QWidget>
#include <QtGui/QDialog>
#include <QtGui/QLabel>
#include <QtGui/QPixmap>

class QDesignerFormWindowInterface;
class QAction;
class QLayoutItem;
class QVBoxLayout;
class QHBoxLayout;
class QGridLayout;

class QDESIGNER_SHARED_EXPORT QDesignerWidget : public QWidget
{
    Q_OBJECT
public:
    QDesignerWidget(QDesignerFormWindowInterface* formWindow, QWidget *parent = 0);
    virtual ~QDesignerWidget();

    inline QDesignerFormWindowInterface* formWindow() const
    { return m_formWindow; }

    void updatePixmap();

protected:
    virtual void paintEvent(QPaintEvent *e);
    virtual void dragEnterEvent(QDragEnterEvent *e);

private:
    QDesignerFormWindowInterface* m_formWindow;
    uint need_frame : 1;
    QPixmap grid;
};

class QDESIGNER_SHARED_EXPORT QDesignerDialog : public QDialog
{
    Q_OBJECT
public:
    QDesignerDialog(QDesignerFormWindowInterface *fw, QWidget *parent)
        : QDialog(parent), m_formWindow(fw) {}

protected:
    void paintEvent(QPaintEvent *e);

private:
    QDesignerFormWindowInterface *m_formWindow;
};

class QDESIGNER_SHARED_EXPORT QDesignerLabel : public QLabel
{
    Q_OBJECT
    Q_PROPERTY(QByteArray buddy READ buddy WRITE setBuddy)
public:
    QDesignerLabel(QWidget *parent = 0);

    inline void setBuddy(const QByteArray &b)
    {
        myBuddy = b;
        updateBuddy();
    }

    inline QByteArray buddy() const
    { return myBuddy; }

    void setBuddy(QWidget *widget);

protected:
    void showEvent(QShowEvent *e)
    {
        QLabel::showEvent(e);
        updateBuddy();
    }

private:
    void updateBuddy();

    QByteArray myBuddy;
};

class QDESIGNER_SHARED_EXPORT Line : public QFrame
{
    Q_OBJECT
    Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation)
public:
    Line(QWidget *parent) : QFrame(parent)
    { setAttribute(Qt::WA_MouseNoMask); setFrameStyle(HLine | Sunken); }

    inline void setOrientation(Qt::Orientation orient)
    { setFrameShape(orient == Qt::Horizontal ? HLine : VLine); }

    inline Qt::Orientation orientation() const
    { return frameShape() == HLine ? Qt::Horizontal : Qt::Vertical; }
};

#endif // QDESIGNER_WIDGET_H