QtPlatformSupport: A helper library for platform plugins

QtPlatformSupport is a static library. Platform plugins are meant to
link against this library to pull in dependencies such as fontengines
and convenience functions for finding the right GL configs. The linker
will only pull in the symbols used, so the size of the library doesn't
really matter

1 files changed, 210 insertions, 0 deletions

diff --git a/src/platformsupport/fb_base/fb_base_p.h b/src/platformsupport/fb_base/fb_base_p.h
new file mode 100644
index 0000000000..6b0b152482
--- /dev/null
+++ b/src/platformsupport/fb_base/fb_base_p.h
@@ -0,0 +1,210 @@
+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** 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.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QLIGHTHOUSEGRAPHICSSCREEN_H
+#define QLIGHTHOUSEGRAPHICSSCREEN_H
+
+#include <qrect.h>
+#include <qimage.h>
+#include <qtimer.h>
+#include <qpainter.h>
+#include <QPlatformCursor>
+#include <QPlatformScreen>
+#include <QPlatformWindow>
+#include <QtGui/private/qwindowsurface_p.h>
+
+class QMouseEvent;
+class QSize;
+class QPainter;
+
+class QFbScreen;
+
+class QPlatformSoftwareCursor : public QPlatformCursor
+{
+public:
+    QPlatformSoftwareCursor(QPlatformScreen * scr);
+
+    // output methods
+    QRect dirtyRect();
+    virtual QRect drawCursor(QPainter & painter);
+
+    // input methods
+    virtual void pointerEvent(const QMouseEvent & event);
+    virtual void changeCursor(QCursor * widgetCursor, QWidget * widget);
+
+    virtual void setDirty() { dirty = true; screen->setDirty(QRect()); }
+    virtual bool isDirty() { return dirty; }
+    virtual bool isOnScreen() { return onScreen; }
+    virtual QRect lastPainted() { return prevRect; }
+
+protected:
+    QPlatformCursorImage * graphic;
+
+private:
+    void setCursor(const uchar *data, const uchar *mask, int width, int height, int hotX, int hotY);
+    void setCursor(Qt::CursorShape shape);
+    void setCursor(const QImage &image, int hotx, int hoty);
+    QRect currentRect;      // next place to draw the cursor
+    QRect prevRect;         // last place the cursor was drawn
+    QRect getCurrentRect();
+    bool dirty;
+    bool onScreen;
+};
+
+class QFbWindow;
+
+class QFbWindowSurface : public QWindowSurface
+{
+public:
+    QFbWindowSurface(QFbScreen *screen, QWidget *window);
+    ~QFbWindowSurface();
+
+    virtual QPaintDevice *paintDevice() { return &mImage; }
+    virtual void flush(QWidget *widget, const QRegion &region, const QPoint &offset);
+    virtual bool scroll(const QRegion &area, int dx, int dy);
+
+    virtual void beginPaint(const QRegion &region);
+    virtual void endPaint(const QRegion &region);
+
+
+    const QImage image() { return mImage; }
+    void resize(const QSize &size);
+
+protected:
+    friend class QFbWindow;
+    QFbWindow *platformWindow;
+
+    QFbScreen *mScreen;
+    QImage mImage;
+};
+
+
+class QFbWindow : public QPlatformWindow
+{
+public:
+
+    QFbWindow(QWidget *window);
+    ~QFbWindow();
+
+
+    virtual void setVisible(bool visible);
+    virtual bool visible() { return visibleFlag; }
+
+    virtual void raise();
+    virtual void lower();
+
+    void setGeometry(const QRect &rect);
+
+    virtual Qt::WindowFlags setWindowFlags(Qt::WindowFlags type);
+    virtual Qt::WindowFlags windowFlags() const;
+
+    WId winId() const { return windowId; }
+
+    virtual void repaint(const QRegion&);
+
+protected:
+    friend class QFbWindowSurface;
+    friend class QFbScreen;
+    QFbWindowSurface *surface;
+    QList<QFbScreen *> mScreens;
+    QRect oldGeometry;
+    bool visibleFlag;
+    Qt::WindowFlags flags;
+
+    WId windowId;
+};
+
+class QFbScreen : public QPlatformScreen
+{
+    Q_OBJECT
+public:
+    QFbScreen();
+    ~QFbScreen();
+
+    virtual QRect geometry() const { return mGeometry; }
+    virtual int depth() const { return mDepth; }
+    virtual QImage::Format format() const { return mFormat; }
+    virtual QSize physicalSize() const { return mPhysicalSize; }
+
+    virtual void setGeometry(QRect rect);
+    virtual void setDepth(int depth);
+    virtual void setFormat(QImage::Format format);
+    virtual void setPhysicalSize(QSize size);
+
+    virtual void setDirty(const QRect &rect);
+
+    virtual void removeWindow(QFbWindow * surface);
+    virtual void addWindow(QFbWindow * surface);
+    virtual void raise(QPlatformWindow * surface);
+    virtual void lower(QPlatformWindow * surface);
+    virtual QWidget * topLevelAt(const QPoint & p) const;
+
+    QImage * image() const { return mScreenImage; }
+    QPaintDevice * paintDevice() const { return mScreenImage; }
+
+protected:
+    QList<QFbWindow *> windowStack;
+    QRegion repaintRegion;
+    QPlatformSoftwareCursor * cursor;
+    QTimer redrawTimer;
+
+protected slots:
+    virtual QRegion doRedraw();
+
+protected:
+    QRect mGeometry;
+    int mDepth;
+    QImage::Format mFormat;
+    QSize mPhysicalSize;
+    QImage *mScreenImage;
+
+private:
+    QPainter * compositePainter;
+    void generateRects();
+    QList<QPair<QRect, int> > cachedRects;
+
+    void invalidateRectCache() { isUpToDate = false; }
+    friend class QFbWindowSurface;
+    friend class QFbWindow;
+    bool isUpToDate;
+};
+
+#endif // QLIGHTHOUSEGRAPHICSSCREEN_H