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Viewing changes to src/server/graphics/gbm/gbm_cursor.h

  • Committer: Package Import Robot
  • Author(s): Ubuntu daily release
  • Date: 2014-01-08 02:04:38 UTC
  • mto: This revision was merged to the branch mainline in revision 58.
  • Revision ID: package-import@ubuntu.com-20140108020438-e1npu0pm7qdv5wc4
Tags: upstream-0.1.3+14.04.20140108
Import upstream version 0.1.3+14.04.20140108

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src/server/graphics/gbm/gbm_cursor.h
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/*
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 * Copyright © 2013 Canonical Ltd.
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 *
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 * This program is free software: you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 3,
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 * as published by the Free Software Foundation.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 *
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 * Authored by: Alan Griffiths <alan@octopull.co.uk>
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 */
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#ifndef MIR_GRAPHICS_GBM_GBM_CURSOR_H_
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#define MIR_GRAPHICS_GBM_GBM_CURSOR_H_
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#include "mir/graphics/cursor.h"
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#include <gbm.h>
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#include <memory>
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namespace mir
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{
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namespace geometry
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{
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struct Rectangle;
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}
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namespace graphics
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{
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namespace gbm
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{
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class KMSOutputContainer;
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class KMSOutput;
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class KMSDisplayConfiguration;
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class GBMPlatform;
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class CurrentConfiguration
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{
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public:
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    virtual ~CurrentConfiguration() = default;
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    virtual void with_current_configuration_do(
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        std::function<void(KMSDisplayConfiguration const&)> const& exec) = 0;
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protected:
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    CurrentConfiguration() = default;
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    CurrentConfiguration(CurrentConfiguration const&) = delete;
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    CurrentConfiguration& operator=(CurrentConfiguration const&) = delete;
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};
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class GBMCursor : public Cursor
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{
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public:
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    GBMCursor(
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        gbm_device* device,
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        KMSOutputContainer& output_container,
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        std::shared_ptr<CurrentConfiguration> const& current_configuration);
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    ~GBMCursor() noexcept;
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    void set_image(const void* raw_argb, geometry::Size size);
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    void move_to(geometry::Point position);
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    void show_at_last_known_position();
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    void hide();
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private:
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    enum ForceCursorState { UpdateState, ForceState };
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    void for_each_used_output(std::function<void(KMSOutput&, geometry::Rectangle const&)> const& f);
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    void place_cursor_at(geometry::Point position, ForceCursorState force_state);
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    KMSOutputContainer& output_container;
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    geometry::Point current_position;
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    struct GBMBOWrapper
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    {
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        GBMBOWrapper(gbm_device* gbm);
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        operator gbm_bo*();
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        ~GBMBOWrapper();
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    private:
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        gbm_bo* buffer;
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        GBMBOWrapper(GBMBOWrapper const&) = delete;
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        GBMBOWrapper& operator=(GBMBOWrapper const&) = delete;
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    } buffer;
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    std::shared_ptr<CurrentConfiguration> const current_configuration;
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};
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}
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}
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}
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#endif /* MIR_GRAPHICS_GBM_GBM_CURSOR_H_ */