diff options
Diffstat (limited to 'src/plugins/platforms/xlib/qxlibcursor.cpp')
| -rw-r--r-- | src/plugins/platforms/xlib/qxlibcursor.cpp | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/src/plugins/platforms/xlib/qxlibcursor.cpp b/src/plugins/platforms/xlib/qxlibcursor.cpp new file mode 100644 index 0000000..042cbc9 --- /dev/null +++ b/src/plugins/platforms/xlib/qxlibcursor.cpp @@ -0,0 +1,200 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qxlibcursor.h" + +#include "qxlibintegration.h" +#include "qxlibscreen.h" +#include "qxlibwindow.h" +#include "qxlibdisplay.h" + +#include <QtGui/QBitmap> + +#include <X11/cursorfont.h> + +QT_BEGIN_NAMESPACE + +QXlibCursor::QXlibCursor(QXlibScreen *screen) + : QPlatformCursor(screen) +{ +} + +void QXlibCursor::changeCursor(QCursor *cursor, QWidget *widget) +{ + QXlibWindow *w = 0; + if (widget) { + QWidget *window = widget->window(); + w = static_cast<QXlibWindow*>(window->platformWindow()); + } else { + // No X11 cursor control when there is no widget under the cursor + return; + } + + if (!w) + return; + + int id = cursor->handle(); + + Cursor c; + if (!cursorMap.contains(id)) { + if (cursor->shape() == Qt::BitmapCursor) + c = createCursorBitmap(cursor); + else + c = createCursorShape(cursor->shape()); + if (!c) { + return; + } + cursorMap.insert(id, c); + } else { + c = cursorMap.value(id); + } + + w->setCursor(c); +} + +Cursor QXlibCursor::createCursorBitmap(QCursor * cursor) +{ + XColor bg, fg; + bg.red = 255 << 8; + bg.green = 255 << 8; + bg.blue = 255 << 8; + fg.red = 0; + fg.green = 0; + fg.blue = 0; + QPoint spot = cursor->hotSpot(); + Window rootwin = testLiteScreen()->rootWindow(); + + QImage mapImage = cursor->bitmap()->toImage().convertToFormat(QImage::Format_MonoLSB); + QImage maskImage = cursor->mask()->toImage().convertToFormat(QImage::Format_MonoLSB); + + int width = cursor->bitmap()->width(); + int height = cursor->bitmap()->height(); + int bytesPerLine = mapImage.bytesPerLine(); + int destLineSize = width / 8; + if (width % 8) + destLineSize++; + + const uchar * map = mapImage.bits(); + const uchar * mask = maskImage.bits(); + + char * mapBits = new char[height * destLineSize]; + char * maskBits = new char[height * destLineSize]; + for (int i = 0; i < height; i++) { + memcpy(mapBits + (destLineSize * i),map + (bytesPerLine * i), destLineSize); + memcpy(maskBits + (destLineSize * i),mask + (bytesPerLine * i), destLineSize); + } + + Pixmap cp = XCreateBitmapFromData(testLiteScreen()->display()->nativeDisplay(), rootwin, mapBits, width, height); + Pixmap mp = XCreateBitmapFromData(testLiteScreen()->display()->nativeDisplay(), rootwin, maskBits, width, height); + Cursor c = XCreatePixmapCursor(testLiteScreen()->display()->nativeDisplay(), cp, mp, &fg, &bg, spot.x(), spot.y()); + XFreePixmap(testLiteScreen()->display()->nativeDisplay(), cp); + XFreePixmap(testLiteScreen()->display()->nativeDisplay(), mp); + delete[] mapBits; + delete[] maskBits; + + return c; +} + +Cursor QXlibCursor::createCursorShape(int cshape) +{ + Cursor cursor = 0; + + if (cshape < 0 || cshape > Qt::LastCursor) + return 0; + + switch (cshape) { + case Qt::ArrowCursor: + cursor = XCreateFontCursor(testLiteScreen()->display()->nativeDisplay(), XC_left_ptr); + break; + case Qt::UpArrowCursor: + cursor = XCreateFontCursor(testLiteScreen()->display()->nativeDisplay(), XC_center_ptr); + break; + case Qt::CrossCursor: + cursor = XCreateFontCursor(testLiteScreen()->display()->nativeDisplay(), XC_crosshair); + break; + case Qt::WaitCursor: + cursor = XCreateFontCursor(testLiteScreen()->display()->nativeDisplay(), XC_watch); + break; + case Qt::IBeamCursor: + cursor = XCreateFontCursor(testLiteScreen()->display()->nativeDisplay(), XC_xterm); + break; + case Qt::SizeAllCursor: + cursor = XCreateFontCursor(testLiteScreen()->display()->nativeDisplay(), XC_fleur); + break; + case Qt::PointingHandCursor: + cursor = XCreateFontCursor(testLiteScreen()->display()->nativeDisplay(), XC_hand2); + break; + case Qt::SizeBDiagCursor: + cursor = XCreateFontCursor(testLiteScreen()->display()->nativeDisplay(), XC_top_right_corner); + break; + case Qt::SizeFDiagCursor: + cursor = XCreateFontCursor(testLiteScreen()->display()->nativeDisplay(), XC_bottom_right_corner); + break; + case Qt::SizeVerCursor: + case Qt::SplitVCursor: + cursor = XCreateFontCursor(testLiteScreen()->display()->nativeDisplay(), XC_sb_v_double_arrow); + break; + case Qt::SizeHorCursor: + case Qt::SplitHCursor: + cursor = XCreateFontCursor(testLiteScreen()->display()->nativeDisplay(), XC_sb_h_double_arrow); + break; + case Qt::WhatsThisCursor: + cursor = XCreateFontCursor(testLiteScreen()->display()->nativeDisplay(), XC_question_arrow); + break; + case Qt::ForbiddenCursor: + cursor = XCreateFontCursor(testLiteScreen()->display()->nativeDisplay(), XC_circle); + break; + case Qt::BusyCursor: + cursor = XCreateFontCursor(testLiteScreen()->display()->nativeDisplay(), XC_watch); + break; + + default: //default cursor for all the rest + break; + } + return cursor; +} + +QXlibScreen * QXlibCursor::testLiteScreen() const +{ + return static_cast<QXlibScreen *>(screen); +} + +QT_END_NAMESPACE |