diff options
Diffstat (limited to 'src/plugins/platforms/xcb/qxcbcursor.cpp')
| -rw-r--r-- | src/plugins/platforms/xcb/qxcbcursor.cpp | 238 |
1 files changed, 80 insertions, 158 deletions
diff --git a/src/plugins/platforms/xcb/qxcbcursor.cpp b/src/plugins/platforms/xcb/qxcbcursor.cpp index fbadab4d50..dc9ed46956 100644 --- a/src/plugins/platforms/xcb/qxcbcursor.cpp +++ b/src/plugins/platforms/xcb/qxcbcursor.cpp @@ -1,41 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the plugins 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. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2022 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 #include "qxcbcursor.h" #include "qxcbconnection.h" @@ -43,35 +7,23 @@ #include "qxcbimage.h" #include "qxcbxsettings.h" -#if QT_CONFIG(library) -#include <QtCore/QLibrary> -#endif #include <QtGui/QWindow> #include <QtGui/QBitmap> #include <QtGui/private/qguiapplication_p.h> +#include <qpa/qplatformtheme.h> + +#if QT_CONFIG(xcb_xlib) #include <X11/cursorfont.h> +#else +#include "qxcbcursorfont.h" +#endif + #include <xcb/xfixes.h> #include <xcb/xcb_image.h> QT_BEGIN_NAMESPACE -typedef int (*PtrXcursorLibraryLoadCursor)(void *, const char *); -typedef char *(*PtrXcursorLibraryGetTheme)(void *); -typedef int (*PtrXcursorLibrarySetTheme)(void *, const char *); -typedef int (*PtrXcursorLibraryGetDefaultSize)(void *); - -#if QT_CONFIG(xcb_xlib) && QT_CONFIG(library) -#include <X11/Xlib.h> -enum { - XCursorShape = CursorShape -}; -#undef CursorShape - -static PtrXcursorLibraryLoadCursor ptrXcursorLibraryLoadCursor = 0; -static PtrXcursorLibraryGetTheme ptrXcursorLibraryGetTheme = 0; -static PtrXcursorLibrarySetTheme ptrXcursorLibrarySetTheme = 0; -static PtrXcursorLibraryGetDefaultSize ptrXcursorLibraryGetDefaultSize = 0; -#endif +using namespace Qt::StringLiterals; static xcb_font_t cursorFont = 0; static int cursorCount = 0; @@ -118,7 +70,7 @@ static const uint8_t mcur_fdiag_bits[] = { static const uint8_t *cursor_bits16[] = { cur_ver_bits, mcur_ver_bits, cur_hor_bits, mcur_hor_bits, cur_bdiag_bits, mcur_bdiag_bits, cur_fdiag_bits, mcur_fdiag_bits, - 0, 0, cur_blank_bits, cur_blank_bits }; + nullptr, nullptr, cur_blank_bits, cur_blank_bits }; static const uint8_t vsplit_bits[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, @@ -219,7 +171,7 @@ static const uint8_t busym_bits[] = { static const uint8_t * const cursor_bits32[] = { vsplit_bits, vsplitm_bits, hsplit_bits, hsplitm_bits, - 0, 0, 0, 0, whatsthis_bits, whatsthism_bits, busy_bits, busym_bits + nullptr, nullptr, nullptr, nullptr, whatsthis_bits, whatsthism_bits, busy_bits, busym_bits }; static const uint8_t forbidden_bits[] = { @@ -289,10 +241,10 @@ QXcbCursorCacheKey::QXcbCursorCacheKey(const QCursor &c) if (pixmapCacheKey) { bitmapCacheKey = pixmapCacheKey; } else { - Q_ASSERT(c.bitmap()); - Q_ASSERT(c.mask()); - bitmapCacheKey = c.bitmap()->cacheKey(); - maskCacheKey = c.mask()->cacheKey(); + Q_ASSERT(!c.bitmap().isNull()); + Q_ASSERT(!c.mask().isNull()); + bitmapCacheKey = c.bitmap().cacheKey(); + maskCacheKey = c.mask().cacheKey(); } } } @@ -300,50 +252,28 @@ QXcbCursorCacheKey::QXcbCursorCacheKey(const QCursor &c) #endif // !QT_NO_CURSOR QXcbCursor::QXcbCursor(QXcbConnection *conn, QXcbScreen *screen) - : QXcbObject(conn), m_screen(screen), m_gtkCursorThemeInitialized(false) + : QXcbObject(conn), m_screen(screen), m_cursorContext(nullptr), m_callbackForPropertyRegistered(false) { #if QT_CONFIG(cursor) // see NUM_BITMAPS in libXcursor/src/xcursorint.h m_bitmapCache.setMaxCost(8); #endif + updateContext(); + if (cursorCount++) return; cursorFont = xcb_generate_id(xcb_connection()); const char *cursorStr = "cursor"; xcb_open_font(xcb_connection(), cursorFont, strlen(cursorStr), cursorStr); - -#if QT_CONFIG(xcb_xlib) && QT_CONFIG(library) - static bool function_ptrs_not_initialized = true; - if (function_ptrs_not_initialized) { - QLibrary xcursorLib(QLatin1String("Xcursor"), 1); - bool xcursorFound = xcursorLib.load(); - if (!xcursorFound) { // try without the version number - xcursorLib.setFileName(QLatin1String("Xcursor")); - xcursorFound = xcursorLib.load(); - } - if (xcursorFound) { - ptrXcursorLibraryLoadCursor = - (PtrXcursorLibraryLoadCursor) xcursorLib.resolve("XcursorLibraryLoadCursor"); - ptrXcursorLibraryGetTheme = - (PtrXcursorLibraryGetTheme) xcursorLib.resolve("XcursorGetTheme"); - ptrXcursorLibrarySetTheme = - (PtrXcursorLibrarySetTheme) xcursorLib.resolve("XcursorSetTheme"); - ptrXcursorLibraryGetDefaultSize = - (PtrXcursorLibraryGetDefaultSize) xcursorLib.resolve("XcursorGetDefaultSize"); - } - function_ptrs_not_initialized = false; - } - -#endif } QXcbCursor::~QXcbCursor() { xcb_connection_t *conn = xcb_connection(); - if (m_gtkCursorThemeInitialized) { + if (m_callbackForPropertyRegistered) { m_screen->xSettings()->removeCallbackForHandle(this); } @@ -351,9 +281,33 @@ QXcbCursor::~QXcbCursor() xcb_close_font(conn, cursorFont); #ifndef QT_NO_CURSOR - for (xcb_cursor_t cursor : qAsConst(m_cursorHash)) + for (xcb_cursor_t cursor : std::as_const(m_cursorHash)) xcb_free_cursor(conn, cursor); #endif + + if (m_cursorContext) + xcb_cursor_context_free(m_cursorContext); +} + +QSize QXcbCursor::size() const +{ + if (const QPlatformTheme *theme = QGuiApplicationPrivate::platformTheme()) + return theme->themeHint(QPlatformTheme::MouseCursorSize).toSize(); + return QSize(24, 24); +} + +void QXcbCursor::updateContext() +{ + if (m_cursorContext) + xcb_cursor_context_free(m_cursorContext); + + m_cursorContext = nullptr; + + xcb_connection_t *conn = xcb_connection(); + if (xcb_cursor_context_new(conn, m_screen->screen(), &m_cursorContext) < 0) { + qWarning() << "xcb: Could not initialize xcb-cursor"; + m_cursorContext = nullptr; + } } #ifndef QT_NO_CURSOR @@ -452,19 +406,19 @@ xcb_cursor_t QXcbCursor::createNonStandardCursor(int cshape) if (cshape == Qt::BlankCursor) { xcb_pixmap_t cp = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(), cur_blank_bits, 16, 16, - 1, 0, 0, 0); + 1, 0, 0, nullptr); xcb_pixmap_t mp = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(), cur_blank_bits, 16, 16, - 1, 0, 0, 0); + 1, 0, 0, nullptr); cursor = xcb_generate_id(conn); xcb_create_cursor(conn, cursor, cp, mp, 0, 0, 0, 0xFFFF, 0xFFFF, 0xFFFF, 8, 8); } else if (cshape >= Qt::SizeVerCursor && cshape < Qt::SizeAllCursor) { int i = (cshape - Qt::SizeVerCursor) * 2; xcb_pixmap_t pm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(), const_cast<uint8_t*>(cursor_bits16[i]), - 16, 16, 1, 0, 0, 0); + 16, 16, 1, 0, 0, nullptr); xcb_pixmap_t pmm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(), const_cast<uint8_t*>(cursor_bits16[i + 1]), - 16, 16, 1, 0, 0, 0); + 16, 16, 1, 0, 0, nullptr); cursor = xcb_generate_id(conn); xcb_create_cursor(conn, cursor, pm, pmm, 0, 0, 0, 0xFFFF, 0xFFFF, 0xFFFF, 8, 8); } else if ((cshape >= Qt::SplitVCursor && cshape <= Qt::SplitHCursor) @@ -472,10 +426,10 @@ xcb_cursor_t QXcbCursor::createNonStandardCursor(int cshape) int i = (cshape - Qt::SplitVCursor) * 2; xcb_pixmap_t pm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(), const_cast<uint8_t*>(cursor_bits32[i]), - 32, 32, 1, 0, 0, 0); + 32, 32, 1, 0, 0, nullptr); xcb_pixmap_t pmm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(), const_cast<uint8_t*>(cursor_bits32[i + 1]), - 32, 32, 1, 0, 0, 0); + 32, 32, 1, 0, 0, nullptr); int hs = (cshape == Qt::PointingHandCursor || cshape == Qt::WhatsThisCursor || cshape == Qt::BusyCursor) ? 0 : 16; cursor = xcb_generate_id(conn); @@ -484,20 +438,20 @@ xcb_cursor_t QXcbCursor::createNonStandardCursor(int cshape) int i = (cshape - Qt::ForbiddenCursor) * 2; xcb_pixmap_t pm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(), const_cast<uint8_t*>(cursor_bits20[i]), - 20, 20, 1, 0, 0, 0); + 20, 20, 1, 0, 0, nullptr); xcb_pixmap_t pmm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(), const_cast<uint8_t*>(cursor_bits20[i + 1]), - 20, 20, 1, 0, 0, 0); + 20, 20, 1, 0, 0, nullptr); cursor = xcb_generate_id(conn); xcb_create_cursor(conn, cursor, pm, pmm, 0, 0, 0, 0xFFFF, 0xFFFF, 0xFFFF, 10, 10); } else if (cshape == Qt::OpenHandCursor || cshape == Qt::ClosedHandCursor) { bool open = cshape == Qt::OpenHandCursor; xcb_pixmap_t pm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(), const_cast<uint8_t*>(open ? openhand_bits : closedhand_bits), - 16, 16, 1, 0, 0, 0); + 16, 16, 1, 0, 0, nullptr); xcb_pixmap_t pmm = xcb_create_pixmap_from_bitmap_data(conn, m_screen->root(), const_cast<uint8_t*>(open ? openhandm_bits : closedhandm_bits), - 16, 16, 1, 0, 0, 0); + 16, 16, 1, 0, 0, nullptr); cursor = xcb_generate_id(conn); xcb_create_cursor(conn, cursor, pm, pmm, 0, 0, 0, 0xFFFF, 0xFFFF, 0xFFFF, 8, 8); } else if (cshape == Qt::DragCopyCursor || cshape == Qt::DragMoveCursor @@ -516,77 +470,44 @@ xcb_cursor_t QXcbCursor::createNonStandardCursor(int cshape) return cursor; } -#if QT_CONFIG(xcb_xlib) && QT_CONFIG(library) -bool updateCursorTheme(void *dpy, const QByteArray &theme) { - if (!ptrXcursorLibraryGetTheme - || !ptrXcursorLibrarySetTheme) - return false; - QByteArray oldTheme = ptrXcursorLibraryGetTheme(dpy); - if (oldTheme == theme) - return false; - - int setTheme = ptrXcursorLibrarySetTheme(dpy,theme.constData()); - return setTheme; -} - - void QXcbCursor::cursorThemePropertyChanged(QXcbVirtualDesktop *screen, const QByteArray &name, const QVariant &property, void *handle) +void QXcbCursor::cursorThemePropertyChanged(QXcbVirtualDesktop *screen, const QByteArray &name, const QVariant &property, void *handle) { Q_UNUSED(screen); Q_UNUSED(name); + Q_UNUSED(property); QXcbCursor *self = static_cast<QXcbCursor *>(handle); - updateCursorTheme(self->connection()->xlib_display(),property.toByteArray()); -} - -static xcb_cursor_t loadCursor(void *dpy, int cshape) -{ - xcb_cursor_t cursor = XCB_NONE; - if (!ptrXcursorLibraryLoadCursor || !dpy) - return cursor; - - for (const char *cursorName: cursorNames[cshape]) { - cursor = ptrXcursorLibraryLoadCursor(dpy, cursorName); - if (cursor != XCB_NONE) - break; - } - - return cursor; + self->m_cursorHash.clear(); + self->updateContext(); } -#endif // QT_CONFIG(xcb_xlib) / QT_CONFIG(library) xcb_cursor_t QXcbCursor::createFontCursor(int cshape) { + if (!m_cursorContext) + return XCB_NONE; + xcb_connection_t *conn = xcb_connection(); int cursorId = cursorIdForShape(cshape); xcb_cursor_t cursor = XCB_NONE; - // Try Xcursor first -#if QT_CONFIG(xcb_xlib) && QT_CONFIG(library) + if (!m_callbackForPropertyRegistered && m_screen->xSettings()->initialized()) { + m_screen->xSettings()->registerCallbackForProperty("Gtk/CursorThemeName", cursorThemePropertyChanged, this); + + m_callbackForPropertyRegistered = true; + } + + // Try xcb-cursor first if (cshape >= 0 && cshape <= Qt::LastCursor) { - void *dpy = connection()->xlib_display(); - cursor = loadCursor(dpy, cshape); - if (!cursor && !m_gtkCursorThemeInitialized && m_screen->xSettings()->initialized()) { - QByteArray gtkCursorTheme = m_screen->xSettings()->setting("Gtk/CursorThemeName").toByteArray(); - m_screen->xSettings()->registerCallbackForProperty("Gtk/CursorThemeName",cursorThemePropertyChanged,this); - if (updateCursorTheme(dpy,gtkCursorTheme)) { - cursor = loadCursor(dpy, cshape); - } - m_gtkCursorThemeInitialized = true; + for (const char *cursorName : cursorNames[cshape]) { + cursor = xcb_cursor_load_cursor(m_cursorContext, cursorName); + if (cursor != XCB_NONE) + return cursor; } } - if (cursor) - return cursor; - if (!cursor && cursorId) { - cursor = XCreateFontCursor(static_cast<Display *>(connection()->xlib_display()), cursorId); - if (cursor) - return cursor; - } - -#endif // Non-standard X11 cursors are created from bitmaps cursor = createNonStandardCursor(cshape); - // Create a glpyh cursor if everything else failed + // Create a glyph cursor if everything else failed if (!cursor && cursorId) { cursor = xcb_generate_id(conn); xcb_create_glyph_cursor(conn, cursor, cursorFont, cursorFont, @@ -613,8 +534,8 @@ xcb_cursor_t QXcbCursor::createBitmapCursor(QCursor *cursor) qCWarning(lcQpaXcb, "xrender >= 0.5 required to create pixmap cursors"); } else { xcb_connection_t *conn = xcb_connection(); - xcb_pixmap_t cp = qt_xcb_XPixmapFromBitmap(m_screen, cursor->bitmap()->toImage()); - xcb_pixmap_t mp = qt_xcb_XPixmapFromBitmap(m_screen, cursor->mask()->toImage()); + xcb_pixmap_t cp = qt_xcb_XPixmapFromBitmap(m_screen, cursor->bitmap().toImage()); + xcb_pixmap_t mp = qt_xcb_XPixmapFromBitmap(m_screen, cursor->mask().toImage()); c = xcb_generate_id(conn); xcb_create_cursor(conn, c, cp, mp, 0, 0, 0, 0xFFFF, 0xFFFF, 0xFFFF, spot.x(), spot.y()); @@ -660,15 +581,16 @@ void QXcbCursor::queryPointer(QXcbConnection *c, QXcbVirtualDesktop **virtualDes QPoint QXcbCursor::pos() const { QPoint p; - queryPointer(connection(), 0, &p); + queryPointer(connection(), nullptr, &p); return p; } void QXcbCursor::setPos(const QPoint &pos) { QXcbVirtualDesktop *virtualDesktop = nullptr; - queryPointer(connection(), &virtualDesktop, 0); - xcb_warp_pointer(xcb_connection(), XCB_NONE, virtualDesktop->root(), 0, 0, 0, 0, pos.x(), pos.y()); + queryPointer(connection(), &virtualDesktop, nullptr); + if (virtualDesktop) + xcb_warp_pointer(xcb_connection(), XCB_NONE, virtualDesktop->root(), 0, 0, 0, 0, pos.x(), pos.y()); xcb_flush(xcb_connection()); } |