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/*
Copyright (C) 2009 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; 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& application, int screen_id);
void detach_from_screen(Application& application);
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 SpiceRect& r);
void add_rect_area(const SpiceRect& r);
void remove_rect_area(const SpiceRect& r);
void begin_update(QRegion& direct_rgn, QRegion& composit_rgn);
void invalidate();
uint64_t invalidate(const SpiceRect& r, bool urgent = false);
void invalidate(const QRegion& r);
bool contains_point(int x, int y);
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) {}
virtual bool pointer_test(int x, int y) { return false;}
virtual void on_pointer_enter(int x, int y, unsigned int buttons_state) {}
virtual void on_pointer_motion(int x, int y, unsigned int buttons_state) {}
virtual void on_pointer_leave() {}
virtual void on_mouse_button_press(int button, int buttons_state) {}
virtual void on_mouse_button_release(int button, int buttons_state) {}
private:
uint64_t invalidate_rect(const SpiceRect& r, bool urgent);
void notify_changed();
private:
RedScreen* _screen;
int _z_order;
bool _opaque;
bool _using_ogl;
Mutex _area_lock;
QRegion _area;
QRegion _direct_area;
QRegion _composit_area;
};
#endif
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