diff options
Diffstat (limited to 'src/platformsupport/eglconvenience/qeglplatformcursor_p.h')
-rw-r--r-- | src/platformsupport/eglconvenience/qeglplatformcursor_p.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/platformsupport/eglconvenience/qeglplatformcursor_p.h b/src/platformsupport/eglconvenience/qeglplatformcursor_p.h new file mode 100644 index 0000000000..52359b84cd --- /dev/null +++ b/src/platformsupport/eglconvenience/qeglplatformcursor_p.h @@ -0,0 +1,114 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** 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 Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QEGLPLATFORMCURSOR_H +#define QEGLPLATFORMCURSOR_H + +#include <qpa/qplatformcursor.h> +#include <qpa/qplatformscreen.h> + +QT_BEGIN_NAMESPACE + +class QOpenGLShaderProgram; + +class QEGLPlatformCursor : public QPlatformCursor +{ +public: + QEGLPlatformCursor(QPlatformScreen *screen); + ~QEGLPlatformCursor(); + +#ifndef QT_NO_CURSOR + void changeCursor(QCursor *cursor, QWindow *widget) Q_DECL_OVERRIDE; +#endif + void pointerEvent(const QMouseEvent &event) Q_DECL_OVERRIDE; + QPoint pos() const Q_DECL_OVERRIDE; + void setPos(const QPoint &pos) Q_DECL_OVERRIDE; + + QRect cursorRect() const; + void paintOnScreen(); + void resetResources(); + +private: +#ifndef QT_NO_CURSOR + bool setCurrentCursor(QCursor *cursor); +#endif + void draw(const QRectF &rect); + void update(const QRegion ®ion); + void createShaderPrograms(); + static void createCursorTexture(uint *texture, const QImage &image); + void initCursorAtlas(); + + // current cursor information + struct Cursor { + Cursor() : texture(0), shape(Qt::BlankCursor), customCursorTexture(0), customCursorPending(false) { } + uint texture; // a texture from 'image' or the atlas + Qt::CursorShape shape; + QRectF textureRect; // normalized rect inside texture + QSize size; // size of the cursor + QPoint hotSpot; + QImage customCursorImage; + QPoint pos; // current cursor position + uint customCursorTexture; + bool customCursorPending; + } m_cursor; + + // cursor atlas information + struct CursorAtlas { + CursorAtlas() : cursorsPerRow(0), texture(0), cursorWidth(0), cursorHeight(0) { } + int cursorsPerRow; + uint texture; + int width, height; // width and height of the the atlas + int cursorWidth, cursorHeight; // width and height of cursors inside the atlas + QList<QPoint> hotSpots; + QImage image; // valid until it's uploaded + } m_cursorAtlas; + + bool m_visible; + QPlatformScreen *m_screen; + QOpenGLShaderProgram *m_program; + int m_vertexCoordEntry; + int m_textureCoordEntry; + int m_textureEntry; +}; + +QT_END_NAMESPACE + +#endif // QEGLPLATFORMCURSOR_H |