diff options
Diffstat (limited to 'src/widgets/styles/qwindowsxpstyle.cpp')
| -rw-r--r-- | src/widgets/styles/qwindowsxpstyle.cpp | 70 |
1 files changed, 65 insertions, 5 deletions
diff --git a/src/widgets/styles/qwindowsxpstyle.cpp b/src/widgets/styles/qwindowsxpstyle.cpp index 661c1f7a88..3f38164c01 100644 --- a/src/widgets/styles/qwindowsxpstyle.cpp +++ b/src/widgets/styles/qwindowsxpstyle.cpp @@ -54,6 +54,8 @@ #include <qbackingstore.h> #include <qapplication.h> #include <qpixmapcache.h> +#include <private/qapplication_p.h> +#include <qpa/qplatformnativeinterface.h> #include <qdesktopwidget.h> #include <qtoolbutton.h> @@ -163,7 +165,7 @@ 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", L"WINDOW", L"STATUS", L"TREEVIEW" }; static inline QBackingStore *backingStoreForWidget(const QWidget *widget) @@ -244,6 +246,7 @@ HRGN XPThemeData::mask(QWidget *widget) // QWindowsXPStylePrivate ------------------------------------------------------------------------- // Static initializations QPixmap *QWindowsXPStylePrivate::tabbody = 0; +HWND QWindowsXPStylePrivate::m_vistaTreeViewHelper = 0; HTHEME QWindowsXPStylePrivate::m_themes[NThemes]; bool QWindowsXPStylePrivate::use_xp = false; QBasicAtomicInt QWindowsXPStylePrivate::ref = Q_BASIC_ATOMIC_INITIALIZER(-1); // -1 based refcounting @@ -327,6 +330,58 @@ void QWindowsXPStylePrivate::cleanup(bool force) tabbody = 0; } +/* In order to obtain the correct VistaTreeViewTheme (arrows for PE_IndicatorBranch), + * we need to set the windows "explorer" theme explicitly on a native + * window and open the "TREEVIEW" theme handle passing its window handle + * in order to get Vista-style item view themes (particulary drawBackground() + * for selected items needs this). + * We invoke a service of the native Windows interface to create + * a non-visible window handle, open the theme on it and insert it into + * the cache so that it is found by XPThemeData::handle() first. + */ + +static inline HWND createTreeViewHelperWindow() +{ + if (QPlatformNativeInterface *ni = QGuiApplication::platformNativeInterface()) { + void *hwnd = 0; + void *wndProc = reinterpret_cast<void *>(DefWindowProc); + if (QMetaObject::invokeMethod(ni, "createMessageWindow", Qt::DirectConnection, + Q_RETURN_ARG(void *, hwnd), + Q_ARG(QString, QStringLiteral("QTreeViewThemeHelperWindowClass")), + Q_ARG(QString, QStringLiteral("QTreeViewThemeHelperWindow")), + Q_ARG(void *, wndProc)) && hwnd) { + return reinterpret_cast<HWND>(hwnd); + } + } + return 0; +} + +bool QWindowsXPStylePrivate::initVistaTreeViewTheming() +{ + if (m_vistaTreeViewHelper) + return true; + + m_vistaTreeViewHelper = createTreeViewHelperWindow(); + if (!m_vistaTreeViewHelper) { + qWarning("Unable to create the treeview helper window."); + return false; + } + if (FAILED(QWindowsXPStylePrivate::pSetWindowTheme(m_vistaTreeViewHelper, L"explorer", NULL))) { + qErrnoWarning("SetWindowTheme() failed."); + cleanupVistaTreeViewTheming(); + return false; + } + return true; +} + +void QWindowsXPStylePrivate::cleanupVistaTreeViewTheming() +{ + if (m_vistaTreeViewHelper) { + DestroyWindow(m_vistaTreeViewHelper); + m_vistaTreeViewHelper = 0; + } +} + /* \internal Closes all open theme data handles to ensure that we don't leak resources, and that we don't refere to old handles when for @@ -339,6 +394,7 @@ void QWindowsXPStylePrivate::cleanupHandleMap() pCloseThemeData(m_themes[i]); m_themes[i] = 0; } + QWindowsXPStylePrivate::cleanupVistaTreeViewTheming(); } HTHEME QWindowsXPStylePrivate::createTheme(int theme, HWND hwnd) @@ -349,6 +405,8 @@ HTHEME QWindowsXPStylePrivate::createTheme(int theme, HWND hwnd) } if (!m_themes[theme]) { const wchar_t *name = themeNames[theme]; + if (theme == VistaTreeViewTheme && QWindowsXPStylePrivate::initVistaTreeViewTheming()) + hwnd = QWindowsXPStylePrivate::m_vistaTreeViewHelper; m_themes[theme] = pOpenThemeData(hwnd, name); if (Q_UNLIKELY(!m_themes[theme])) qErrnoWarning("OpenThemeData() failed for theme %d (%s).", @@ -1955,7 +2013,7 @@ case PE_Frame: bef_v -= delta; aft_h += delta; aft_v += delta; - XPThemeData theme(0, p, QWindowsXPStylePrivate::TreeViewTheme); + XPThemeData theme(0, p, QWindowsXPStylePrivate::XpTreeViewTheme); theme.rect = QRect(bef_h, bef_v, decoration_size, decoration_size); theme.partId = TVP_GLYPH; theme.stateId = flags & QStyle::State_Open ? GLPS_OPENED : GLPS_CLOSED; @@ -3743,10 +3801,12 @@ QSize QWindowsXPStyle::sizeFromContents(ContentsType ct, const QStyleOption *opt { XPThemeData buttontheme(widget, 0, QWindowsXPStylePrivate::ButtonTheme, BP_PUSHBUTTON, PBS_NORMAL); if (buttontheme.isValid()) { - const QMarginsF borderSize = buttontheme.margins() / QWindowsXPStylePrivate::devicePixelRatio(widget); + const qreal devicePixelRatio = QWindowsXPStylePrivate::devicePixelRatio(widget); + const QMarginsF borderSize = buttontheme.margins() / devicePixelRatio; if (!borderSize.isNull()) { - sz.rwidth() += qRound(borderSize.left() + borderSize.right() - 2); - sz.rheight() += qRound(borderSize.bottom() + borderSize.top() - 2); + const qreal margin = qreal(2) / devicePixelRatio; + sz.rwidth() += qRound(borderSize.left() + borderSize.right() - margin); + sz.rheight() += int(borderSize.bottom() + borderSize.top() - margin + devicePixelRatio - 1); } const int textMargins = 2*(proxy()->pixelMetric(PM_FocusFrameHMargin) + 1); sz += QSize(qMax(pixelMetric(QStyle::PM_ScrollBarExtent, option, widget) |