fresh start

1 files changed, 79 insertions, 0 deletions

diff --git a/client/screen_layer.h b/client/screen_layer.h
new file mode 100644
index 00000000..cbcc5503
--- /dev/null
+++ b/client/screen_layer.h
@@ -0,0 +1,79 @@
+/*
+   Copyright (C) 2009 Red Hat, Inc.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _H_SCREEN_LAYER
+#define _H_SCREEN_LAYER
+
+#include "threads.h"
+#include "region.h"
+
+class RedScreen;
+class Application;
+
+class ScreenLayer {
+public:
+    ScreenLayer(int z_order, bool opaque);
+    virtual ~ScreenLayer();
+
+    void attach_to_screen(Application& applicaion, int screen_id);
+    void detach_from_screen(Application& applicaion);
+
+    void set_screen(RedScreen* screen) { _screen = screen;}
+    RedScreen* screen() { return _screen; }
+    int z_order() { return _z_order;}
+    void set_area(const QRegion& area);
+    void offset_area(int dx, int dy);
+    void clear_area();
+    void set_rect_area(const Rect& r);
+    void add_rect_area(const Rect& r);
+    void remove_rect_area(const Rect& r);
+    void begin_update(QRegion& direct_rgn, QRegion& composit_rgn);
+    void invalidate();
+    uint64_t invalidate(const Rect& r, bool urgent = false);
+    void invalidate(const QRegion& r);
+
+    virtual void copy_pixels(const QRegion& dest_region, RedDrawable& dest_dc) {}
+
+    void set_using_ogl(bool val) {_using_ogl = val;}
+    bool using_ogl() {return _using_ogl;}
+    virtual void on_size_changed() {}
+
+    virtual void pre_migrate() { }
+    virtual void post_migrate() { }
+
+    QRegion& area() { return _area;}
+    QRegion& direct_area() { return _direct_area;}
+    QRegion& composit_area() { return _composit_area;}
+
+    virtual void on_update_completion(uint64_t mark) {}
+
+private:
+    uint64_t invalidate_rect(const Rect& r, bool urgent);
+
+private:
+    RedScreen* _screen;
+    int _z_order;
+    bool _opaque;
+    bool _using_ogl;
+    Mutex _area_lock;
+    QRegion _area;
+    QRegion _direct_area;
+    QRegion _composit_area;
+};
+
+#endif
+