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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtWidgets module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QWIZARD_WIN_P_H
#define QWIZARD_WIN_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtWidgets/private/qtwidgetsglobal_p.h>
#if QT_CONFIG(style_windowsvista)
#include <qobject.h>
#include <qwidget.h>
#include <qabstractbutton.h>
#include <QtWidgets/private/qwidget_p.h>
#include <QtWidgets/private/qstylehelper_p.h>
#include <qt_windows.h>
QT_REQUIRE_CONFIG(wizard);
QT_BEGIN_NAMESPACE
class QVistaBackButton : public QAbstractButton
{
public:
QVistaBackButton(QWidget *widget);
QSize sizeHint() const override;
inline QSize minimumSizeHint() const override
{ return sizeHint(); }
void enterEvent(QEnterEvent *event) override;
void leaveEvent(QEvent *event) override;
void paintEvent(QPaintEvent *event) override;
};
class QWizard;
class QVistaHelper : public QObject
{
Q_DISABLE_COPY_MOVE(QVistaHelper)
public:
QVistaHelper(QWizard *wizard);
~QVistaHelper() override;
enum TitleBarChangeType { NormalTitleBar, ExtendedTitleBar };
void updateCustomMargins(bool vistaMargins);
bool setDWMTitleBar(TitleBarChangeType type);
void setTitleBarIconAndCaptionVisible(bool visible);
void mouseEvent(QEvent *event);
bool handleWinEvent(MSG *message, qintptr *result);
void resizeEvent(QResizeEvent *event);
void paintEvent(QPaintEvent *event);
QVistaBackButton *backButton() const { return backButton_; }
void disconnectBackButton();
void hideBackButton() { if (backButton_) backButton_->hide(); }
QColor basicWindowFrameColor();
enum VistaState { VistaAero, VistaBasic, Classic, Dirty };
static VistaState vistaState();
static int titleBarSize() { return QVistaHelper::titleBarSizeDp() / QVistaHelper::m_devicePixelRatio; }
static int titleBarSizeDp() { return QVistaHelper::frameSizeDp() + QVistaHelper::captionSizeDp(); }
static int topPadding(const QPaintDevice *device) { // padding under text
return int(QStyleHelper::dpiScaled(4, device));
}
static int topOffset(const QPaintDevice *device);
static HDC backingStoreDC(const QWidget *wizard, QPoint *offset);
private:
HWND wizardHWND() const;
bool drawTitleText(QPainter *painter, const QString &text, const QRect &rect, HDC hdc);
static bool drawBlackRect(const QRect &rect, HDC hdc);
static int frameSize() { return QVistaHelper::frameSizeDp() / QVistaHelper::m_devicePixelRatio; }
static int frameSizeDp();
static int captionSize() { return QVistaHelper::captionSizeDp() / QVistaHelper::m_devicePixelRatio; }
static int captionSizeDp();
static int backButtonSize(const QPaintDevice *device)
{ return int(QStyleHelper::dpiScaled(30, device)); }
static int iconSize(const QPaintDevice *device);
static int glowSize(const QPaintDevice *device);
int leftMargin(const QPaintDevice *device)
{ return backButton_->isVisible() ? backButtonSize(device) + iconSpacing : 0; }
int titleOffset();
void drawTitleBar(QPainter *painter);
void setMouseCursor(QPoint pos);
void collapseTopFrameStrut();
bool winEvent(MSG *message, qintptr *result);
void mouseMoveEvent(QMouseEvent *event);
void mousePressEvent(QMouseEvent *event);
void mouseReleaseEvent(QMouseEvent *event);
bool eventFilter(QObject *obj, QEvent *event) override;
static int instanceCount;
static VistaState cachedVistaState;
static bool isCompositionEnabled();
static bool isThemeActive();
enum Changes { resizeTop, movePosition, noChange } change;
QPoint pressedPos;
bool pressed;
QRect rtTop;
QRect rtTitle;
QWizard *wizard;
QVistaBackButton *backButton_;
int titleBarOffset; // Extra spacing above the text
int iconSpacing; // Space between button and icon
static int m_devicePixelRatio;
};
QT_END_NAMESPACE
#endif // style_windowsvista
#endif // QWIZARD_WIN_P_H
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