这是QVistaHelper头文件
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#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.
//
#ifndef QT_NO_WIZARD
#ifndef QT_NO_STYLE_WINDOWSVISTA
#include <windows.h>
#include <qobject.h>
#include <qwidget.h>
#include <qabstractbutton.h>
#include <QtGui/private/qwidget_p.h>
class QVistaBackButton : public QAbstractButton
{
public:
QVistaBackButton(QWidget *widget);
QSize sizeHint() const;
inline QSize minimumSizeHint() const
{ return sizeHint(); }
void enterEvent(QEvent *event);
void leaveEvent(QEvent *event);
void paintEvent(QPaintEvent *event);
};
class QWizard;
class QVistaHelper : public QObject
{
Q_OBJECT
public:
QVistaHelper(QWizard *wizard);
~QVistaHelper();
enum TitleBarChangeType { NormalTitleBar, ExtendedTitleBar };
bool setDWMTitleBar(TitleBarChangeType type);
void mouseEvent(QEvent *event);
bool handleWinEvent(MSG *message, long *result);
void resizeEvent(QResizeEvent *event);
void paintEvent(QPaintEvent *event);
QVistaBackButton *backButton() const { return backButton_; }
void setWindowPosHack();
static bool isCompositionEnabled();
static bool isVista();
static int titleBarSize() { return frameSize() + captionSize(); }
static int topPadding() { return 8; } // standard Aero (?)
static int topOffset() { return titleBarSize() + 13; } // standard Aero
private:
static HFONT getCaptionFont(HANDLE hTheme);
static bool drawTitleText(const QString &text, const QRect &rect, HDC hdc);
static bool drawBlackRect(const QRect &rect, HDC hdc);
static int frameSize() { return GetSystemMetrics(SM_CYSIZEFRAME); }
static int captionSize() { return GetSystemMetrics(SM_CYCAPTION); }
static int backButtonSize() { return 31; } // ### should be queried from back button itself
static int iconSize() { return 16; } // Standard Aero
static int padding() { return 7; } // Standard Aero
static int leftMargin() { return backButtonSize() + padding(); }
static int glowSize() { return 10; }
int titleOffset();
bool resolveSymbols();
void drawTitleBar(QPainter *painter);
void setMouseCursor(QPoint pos);
void collapseTopFrameStrut();
bool winEvent(MSG *message, long *result);
void mouseMoveEvent(QMouseEvent *event);
void mousePressEvent(QMouseEvent *event);
void mouseReleaseEvent(QMouseEvent *event);
bool eventFilter(QObject *obj, QEvent *event);
static bool is_vista;
enum Changes { resizeTop, movePosition, noChange } change;
QPoint pressedPos;
bool pressed;
QRect rtTop;
QRect rtTitle;
QWizard *wizard;
QVistaBackButton *backButton_;
};
#endif // QT_NO_STYLE_WINDOWSXP
#endif // QT_NO_WIZARD
#endif // QWIZARD_WIN_P_H
