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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. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "qwindowsxpstyle_p.h" #include "qwindowsxpstyle_p_p.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if QT_CONFIG(toolbutton) #include #endif #if QT_CONFIG(tabbar) #include #endif #if QT_CONFIG(combobox) #include #endif #if QT_CONFIG(scrollbar) #include #endif #include #if QT_CONFIG(spinbox) #include #endif #if QT_CONFIG(listview) #include #endif #if QT_CONFIG(stackedwidget) #include #endif #if QT_CONFIG(pushbutton) #include #endif #if QT_CONFIG(toolbar) #include #endif #include #include #include #include QT_BEGIN_NAMESPACE // General const values static const int windowsItemFrame = 2; // menu item frame width static const int windowsItemHMargin = 3; // menu item hor text margin static const int windowsItemVMargin = 0; // menu item ver text margin static const int windowsArrowHMargin = 6; // arrow horizontal margin static const int windowsRightBorder = 12; // right border on windows // External function calls extern Q_WIDGETS_EXPORT HDC qt_win_display_dc(); extern QRegion qt_region_from_HRGN(HRGN rgn); // Theme names matching the QWindowsXPStylePrivate::Theme enumeration. static const wchar_t *themeNames[QWindowsXPStylePrivate::NThemes] = { L"BUTTON", L"COMBOBOX", L"EDIT", L"HEADER", L"LISTVIEW", L"MENU", L"PROGRESS", L"REBAR", L"SCROLLBAR", L"SPIN", L"TAB", L"TASKDIALOG", L"TOOLBAR", L"TOOLTIP", L"TRACKBAR", L"TREEVIEW", L"WINDOW", L"STATUS", L"TREEVIEW" }; static inline QBackingStore *backingStoreForWidget(const QWidget *widget) { if (QBackingStore *backingStore = widget->backingStore()) return backingStore; if (const QWidget *topLevel = widget->nativeParentWidget()) if (QBackingStore *topLevelBackingStore = topLevel->backingStore()) return topLevelBackingStore; return nullptr; } static inline HDC hdcForWidgetBackingStore(const QWidget *widget) { if (QBackingStore *backingStore = backingStoreForWidget(widget)) { QPlatformNativeInterface *nativeInterface = QGuiApplication::platformNativeInterface(); if (nativeInterface) return static_cast(nativeInterface->nativeResourceForBackingStore(QByteArrayLiteral("getDC"), backingStore)); } return nullptr; } // Theme data helper ------------------------------------------------------------------------------ /* \internal Returns \c true if the themedata is valid for use. */ bool XPThemeData::isValid() { return QWindowsXPStylePrivate::useXP() && theme >= 0 && handle(); } /* \internal Returns the theme engine handle to the specific class. If the handle hasn't been opened before, it opens the data, and adds it to a static map, for caching. */ HTHEME XPThemeData::handle() { if (!QWindowsXPStylePrivate::useXP()) return nullptr; if (!htheme) htheme = QWindowsXPStylePrivate::createTheme(theme, QWindowsXPStylePrivate::winId(widget)); return htheme; } /* \internal Converts a QRect to the native RECT structure. */ RECT XPThemeData::toRECT(const QRect &qr) { RECT r; r.left = qr.x(); r.right = qr.x() + qr.width(); r.top = qr.y(); r.bottom = qr.y() + qr.height(); return r; } /* \internal Returns the native region of a part, if the part is considered transparent. The region is scaled to the parts size (rect). */ HRGN XPThemeData::mask(QWidget *widget) { if (!IsThemeBackgroundPartiallyTransparent(handle(), partId, stateId)) return nullptr; HRGN hrgn; HDC dc = nullptr; if (widget) dc = hdcForWidgetBackingStore(widget); RECT nativeRect = toRECT(rect); GetThemeBackgroundRegion(handle(), dc, partId, stateId, &nativeRect, &hrgn); return hrgn; } // QWindowsXPStylePrivate ------------------------------------------------------------------------- // Static initializations HWND QWindowsXPStylePrivate::m_vistaTreeViewHelper = nullptr; HTHEME QWindowsXPStylePrivate::m_themes[NThemes]; bool QWindowsXPStylePrivate::use_xp = false; QBasicAtomicInt QWindowsXPStylePrivate::ref = Q_BASIC_ATOMIC_INITIALIZER(-1); // -1 based refcounting static void qt_add_rect(HRGN &winRegion, QRect r) { HRGN rgn = CreateRectRgn(r.left(), r.top(), r.x() + r.width(), r.y() + r.height()); if (rgn) { HRGN dest = CreateRectRgn(0,0,0,0); int result = CombineRgn(dest, winRegion, rgn, RGN_OR); if (result) { DeleteObject(winRegion); winRegion = dest; } DeleteObject(rgn); } } static HRGN qt_hrgn_from_qregion(const QRegion ®ion) { HRGN hRegion = CreateRectRgn(0,0,0,0); if (region.rectCount() == 1) { qt_add_rect(hRegion, region.boundingRect()); return hRegion; } for (const QRect &rect : region) qt_add_rect(hRegion, rect); return hRegion; } /* \internal Checks if the theme engine can/should be used, or if we should fall back to Windows style. */ bool QWindowsXPStylePrivate::useXP(bool update) { if (!update) return use_xp; return use_xp = IsThemeActive() && (IsAppThemed() || !QCoreApplication::instance()); } /* \internal Handles refcounting, and queries the theme engine for usage. */ void QWindowsXPStylePriv