.. _program_listing_file_include_miroil_miroil_surface_observer.h:

Program Listing for File surface_observer.h
===========================================

|exhale_lsh| :ref:`Return to documentation for file <file_include_miroil_miroil_surface_observer.h>` (``include/miroil/miroil/surface_observer.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   /*
    * Copyright © Canonical Ltd.
    *
    * This program is free software: you can redistribute it and/or modify it
    * under the terms of the GNU General Public License version 3,
    * as published by the Free Software Foundation.
    *
    * 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/>.
    */
   #include <mir_toolkit/common.h>
   #include <mir/geometry/size.h>
   #include <mir/geometry/rectangle.h>
   #include <mir/graphics/cursor_image.h>
   #include <glm/glm.hpp>
   #include <mir_toolkit/mir_input_device_types.h>
   #include <vector>
   
   namespace mir { namespace scene { class SurfaceObserver; } }
   namespace mir { namespace scene { class Surface; } }
   
   struct MirEvent;
   struct MirInputEvent;
   
   namespace miroil 
   {
       
   class SurfaceObserver
   {
   public:
       SurfaceObserver() = default;
       SurfaceObserver(SurfaceObserver const&) = delete;
       SurfaceObserver& operator=(SurfaceObserver const&) = delete;    
       virtual ~SurfaceObserver() = default;
       
       virtual void attrib_changed(mir::scene::Surface const* surf, MirWindowAttrib attrib, int value) = 0;
       virtual void window_resized_to(mir::scene::Surface const* surf, mir::geometry::Size const& window_size) = 0;
       virtual void content_resized_to(mir::scene::Surface const* surf, mir::geometry::Size const& content_size) = 0;
       virtual void moved_to(mir::scene::Surface const* surf, mir::geometry::Point const& top_left) = 0;
       virtual void hidden_set_to(mir::scene::Surface const* surf, bool hide) = 0;
       virtual void frame_posted(mir::scene::Surface const* surf, int frames_available, mir::geometry::Size const& size) = 0;
       virtual void alpha_set_to(mir::scene::Surface const* surf, float alpha) = 0;
       virtual void orientation_set_to(mir::scene::Surface const* surf, MirOrientation orientation) = 0;
       virtual void transformation_set_to(mir::scene::Surface const* surf, glm::mat4 const& t) = 0;
       virtual void cursor_image_set_to(mir::scene::Surface const* surf, mir::graphics::CursorImage const& image) = 0;
       virtual void client_surface_close_requested(mir::scene::Surface const* surf) = 0;
       virtual void keymap_changed(mir::scene::Surface const* surf, MirInputDeviceId id, std::string const& model,
                                   std::string const& layout, std::string const& variant, std::string const& options) = 0;
       virtual void renamed(mir::scene::Surface const* surf, char const* name) = 0;
       virtual void cursor_image_removed(mir::scene::Surface const* surf) = 0;
       virtual void placed_relative(mir::scene::Surface const* surf, mir::geometry::Rectangle const& placement) = 0;
       virtual void input_consumed(mir::scene::Surface const* surf, MirEvent const* event) = 0;
       virtual void start_drag_and_drop(mir::scene::Surface const* surf, std::vector<uint8_t> const& handle) = 0;
       virtual void depth_layer_set_to(mir::scene::Surface const* surf, MirDepthLayer depth_layer) = 0;
       virtual void application_id_set_to(mir::scene::Surface const* surf, std::string const& application_id) = 0;
   };
   
   }