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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#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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