1 files changed, 183 insertions, 0 deletions
diff --git a/src/plugins/styles/modernwindows/qwindowsthemedata_p.h b/src/plugins/styles/modernwindows/qwindowsthemedata_p.h
new file mode 100644
index 0000000000..5de2bcbdea
--- /dev/null
+++ b/src/plugins/styles/modernwindows/qwindowsthemedata_p.h
@@ -0,0 +1,183 @@
+// 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 QWINDOWSTHEMEDATA_P_H
+#define QWINDOWSTHEMEDATA_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 <qwidget.h>
+#include <qt_windows.h>
+#include <uxtheme.h>
+#include <vssym32.h>
+#include <limits.h>
+
+
+// TMT_TEXTSHADOWCOLOR is wrongly defined in mingw
+#if TMT_TEXTSHADOWCOLOR != 3818
+#undef TMT_TEXTSHADOWCOLOR
+#define TMT_TEXTSHADOWCOLOR 3818
+#endif
+#ifndef TST_NONE
+#  define TST_NONE 0
+#endif
+
+// These defines are missing from the tmschema, but still exist as
+// states for their parts
+#ifndef MINBS_INACTIVE
+#define MINBS_INACTIVE 5
+#endif
+#ifndef MAXBS_INACTIVE
+#define MAXBS_INACTIVE 5
+#endif
+#ifndef RBS_INACTIVE
+#define RBS_INACTIVE 5
+#endif
+#ifndef HBS_INACTIVE
+#define HBS_INACTIVE 5
+#endif
+#ifndef CBS_INACTIVE
+#define CBS_INACTIVE 5
+#endif
+
+// Declarations -----------------------------------------------------------------------------------
+class QWindowsThemeData
+{
+public:
+    explicit QWindowsThemeData(const QWidget *w = nullptr, QPainter *p = nullptr, int themeIn = -1,
+                         int part = 0, int state = 0, const QRect &r = QRect())
+        : widget(w), painter(p), theme(themeIn), partId(part), stateId(state),
+          mirrorHorizontally(false), mirrorVertically(false), noBorder(false),
+          noContent(false), invertPixels(false), rect(r)
+    {}
+
+    HRGN mask(QWidget *widget);
+    HTHEME handle();
+    bool isValid();
+    QSizeF size();
+
+    static QSizeF themeSize(const QWidget *w = nullptr, QPainter *p = nullptr,
+                            int themeIn = -1, int part = 0, int state = 0);
+    static RECT toRECT(const QRect &qr);
+
+    QMarginsF margins(const QRect &rect, int propId = TMT_CONTENTMARGINS);
+    QMarginsF margins(int propId = TMT_CONTENTMARGINS);
+
+    const QWidget *widget;
+    QPainter *painter;
+
+    int theme;
+    HTHEME htheme = nullptr;
+    int partId;
+    int stateId;
+
+    uint mirrorHorizontally : 1;
+    uint mirrorVertically : 1;
+    uint noBorder : 1;
+    uint noContent : 1;
+    uint invertPixels : 1;
+    uint rotate = 0;
+    QRect rect;
+};
+
+struct ThemeMapKey {
+    int theme = 0;
+    int partId = -1;
+    int stateId = -1;
+    bool noBorder = false;
+    bool noContent = false;
+
+    ThemeMapKey() = default;
+    ThemeMapKey(const QWindowsThemeData &data)
+        : theme(data.theme), partId(data.partId), stateId(data.stateId),
+        noBorder(data.noBorder), noContent(data.noContent) {}
+
+};
+
+inline size_t qHash(const ThemeMapKey &key)
+{ return key.theme ^ key.partId ^ key.stateId; }
+
+inline bool operator==(const ThemeMapKey &k1, const ThemeMapKey &k2)
+{
+    return k1.theme == k2.theme
+           && k1.partId == k2.partId
+           && k1.stateId == k2.stateId;
+}
+
+enum AlphaChannelType {
+    UnknownAlpha = -1,          // Alpha of part & state not yet known
+    NoAlpha,                    // Totally opaque, no need to touch alpha (RGB)
+    MaskAlpha,                  // Alpha channel must be fixed            (ARGB)
+    RealAlpha                   // Proper alpha values from Windows       (ARGB_Premultiplied)
+};
+
+struct ThemeMapData {
+    AlphaChannelType alphaType = UnknownAlpha; // Which type of alpha on part & state
+
+    bool dataValid         : 1; // Only used to detect if hash value is ok
+    bool partIsTransparent : 1;
+    bool hasAlphaChannel   : 1; // True =  part & state has real Alpha
+    bool wasAlphaSwapped   : 1; // True =  alpha channel needs to be swapped
+    bool hadInvalidAlpha   : 1; // True =  alpha channel contained invalid alpha values
+
+    ThemeMapData() : dataValid(false), partIsTransparent(false),
+                     hasAlphaChannel(false), wasAlphaSwapped(false), hadInvalidAlpha(false) {}
+};
+
+
+#ifndef QT_NO_DEBUG_STREAM
+QDebug operator<<(QDebug d, const QWindowsThemeData &t);
+QDebug operator<<(QDebug d, const ThemeMapKey &k);
+QDebug operator<<(QDebug d, const ThemeMapData &td);
+#endif
+
+inline QSizeF QWindowsThemeData::size()
+{
+    QSizeF result(0, 0);
+    if (isValid()) {
+        SIZE size;
+        if (SUCCEEDED(GetThemePartSize(handle(), nullptr, partId, stateId, nullptr, TS_TRUE, &size)))
+            result = QSize(size.cx, size.cy);
+    }
+    return result;
+}
+
+inline QSizeF QWindowsThemeData::themeSize(const QWidget *w, QPainter *p, int themeIn, int part, int state)
+{
+    QWindowsThemeData theme(w, p, themeIn, part, state);
+    return theme.size();
+}
+
+inline QMarginsF QWindowsThemeData::margins(const QRect &qRect, int propId)
+{
+    QMarginsF result(0, 0, 0 ,0);
+    if (isValid()) {
+        MARGINS margins;
+        RECT rect = QWindowsThemeData::toRECT(qRect);
+        if (SUCCEEDED(GetThemeMargins(handle(), nullptr, partId, stateId, propId, &rect, &margins)))
+            result = QMargins(margins.cxLeftWidth, margins.cyTopHeight, margins.cxRightWidth, margins.cyBottomHeight);
+    }
+    return result;
+}
+
+inline QMarginsF QWindowsThemeData::margins(int propId)
+{
+    QMarginsF result(0, 0, 0 ,0);
+    if (isValid()) {
+        MARGINS margins;
+        if (SUCCEEDED(GetThemeMargins(handle(), nullptr, partId, stateId, propId, nullptr, &margins)))
+            result = QMargins(margins.cxLeftWidth, margins.cyTopHeight, margins.cxRightWidth, margins.cyBottomHeight);
+    }
+    return result;
+}
+
+#endif // QWINDOWSTHEMEDATA_P_H