C# Actor.SetPosition方法代码示例

    public static unsafe void Main()
    {
        Application.Init ();

        var stage = Stage.Default;
        var stage_geom = stage.Geometry;

        var dummy_width = (int)(MESH_WIDTH * QUAD_WIDTH);
        var dummy_height = (int)(MESH_HEIGHT * QUAD_HEIGHT);
        dummy = CreateDummyActor (dummy_width, dummy_height);
        dummy.SetPosition (
            (int)((stage_geom.Width / 2.0) - (dummy_width / 2.0)),
            (int)((stage_geom.Height / 2.0) - (dummy_height / 2.0)));

        dummy.Painted += (o, e) => {
            Cogl.General.SetSourceColor4ub (0xff, 0x00, 0x00, 0xff);
            Cogl.VertexBuffer.DrawElements (buffer,
                Cogl.GL.GL_TRIANGLE_STRIP,
                0,
                (MESH_WIDTH + 1) * (MESH_HEIGHT + 1),
                (int)n_static_indices,
                Cogl.GL.GL_UNSIGNED_SHORT,
                new IntPtr (static_indices));
        };

        timeline = new Timeline () {
            FrameCount = 360,
            Speed = 60,
            Loop = true
        };

        timeline.NewFrame += OnNewFrame;

        GLib.Idle.Add (() => { stage.QueueRedraw (); return true; });

        InitQuadMesh ();

        stage.Color = new Color (0, 0, 0, 0xff);
        stage.Add (dummy);
        stage.ShowAll ();

        timeline.Start ();

        Application.Run ();
    }

 private void MoveAndRotateActorCentrally(Actor actor, float progress)
 {
     actor.SetPosition ((float) (CenterX + OffsetCenterX + CenterMargin*progress), CenterY);
     actor.Depth = (float) (zFar + (zNear + OffsetZNear - zFar ) * (1 - Math.Abs(progress)));
     actor.SetRotation (Clutter.RotateAxis.Y, -progress * rotationAngle + OffsetRotationAngle, 0, 0, 0);
     actor.Opacity = 255;
     if (actor is ClutterFlowActor) (actor as ClutterFlowActor).SetShade ((byte) Math.Abs(255*progress), (progress < 0));
 }

 private void MoveAndFadeOutActor(Actor actor, float progress,  bool left)
 {
     actor.SetPosition ((left ? 0 : Width) + (SideMargin + progress * XStep)*(left ? 1 : -1), CenterY);
     actor.Depth = zFar - 3 + progress;
     actor.SetRotation (Clutter.RotateAxis.Y, (left ? 1 : -1) * rotationAngle + OffsetRotationAngle, 0, 0, 0);
     actor.Opacity = (byte) (progress * 223);
     if (actor is ClutterFlowActor) (actor as ClutterFlowActor).SetShade (255, left);
 }

 private void MoveActorSideways(Actor actor, float progress, bool left)
 {
     actor.SetPosition (CenterX + OffsetCenterX - (left ? 1 : -1) * ((1-progress)*(SideWidth + OffsetCenterX*(left ? 1 : -1)) + CenterMargin), CenterY);
     actor.Depth = zFar - 2 + progress;
     actor.SetRotation (Clutter.RotateAxis.Y, (left ? 1 : -1) * rotationAngle + OffsetRotationAngle, 0, 0, 0);
     actor.Opacity = (byte) (255 - (1-progress)*32);
     if (actor is ClutterFlowActor) (actor as ClutterFlowActor).SetShade (255, left);
 }

 public void Execute(Actor currentActor)
 {
     currentActor.SetPosition(newPosition);
 }

    public VideoApp(string filename)
    {
        Stage stage = Stage.Default;
        stage.Color = new Color (0x00, 0x00, 0x00, 0x00);
        stage.SetSize (1200, 1024);

        vtexture = new GstVideoTexture ();
        vtexture.SyncSize = false;

        // add size changed call back here
        vtexture.SizeChange += HandleSizeChange;

        vtexture.Filename = filename;
        control = new Group ();

        // panel
        control_bg = new Texture ("vid-panel.png");

        // play button
        control_play = new Texture ("media-actions-start.png");

        // pause button
        control_pause = new Texture ("media-actions-pause.png");

        control_seek1 = new Rectangle (new Color (73, 74, 77, 0xee));
        control_seek2 = new Rectangle (new Color (0xcc, 0xcc, 0xcc, 0xff));
        control_seekbar = new Rectangle (new Color (73, 74, 77, 0xee));
        control_seekbar.Opacity = 0x99;

        // label with name
        string text = System.IO.Path.GetFileName (filename);
        control_label = new Label ("Sans Bold 24", text);
        control_label.Color = new Color (73, 74, 77, 0xee);

        control.AddActor (control_bg);
        control.AddActor (control_play);

        control.AddActor (control_pause);
        control.AddActor (control_seek1);
        control.AddActor (control_seek2);
        control.AddActor (control_seekbar);
        control.AddActor (control_label);

        control.Opacity = 0xee;
        control_play.SetPosition (30, 30);
        control_pause.SetPosition (30, 30);

        control_seek1.SetSize (SEEK_W + 10, SEEK_H + 10);
        control_seek1.SetPosition (200, 100);

        control_seek2.SetSize (SEEK_W, SEEK_H);
        control_seek2.SetPosition (205, 105);

        control_seekbar.SetSize (0, SEEK_H);
        control_seekbar.SetPosition (205, 105);

        control_label.SetPosition (200, 40);

        stage.AddActor (vtexture);
        stage.AddActor (control);

        int x = (int)((stage.Width - control.Width) / 2);
        int y = (int)(stage.Height - (stage.Height / 3));

        control.SetPosition (x, y);

        controls_tl = new Timeline (10, 30);
        controls_tl.NewFrame += HandleControlTlNewFrame;
        controls_tl.Completed += HandleControlTimelineCompleted;

        effect1_tl = new Timeline (30, 90);
        effect1_tl.NewFrame += HandleEffect1TlNewFrame;

        GLib.Timeout.Add (1000, new GLib.TimeoutHandler (Tick));
        stage.MotionEvent += delegate { ShowControls (true); };
        stage.ButtonPressEvent += HandleButtonPressEvent;
        stage.KeyReleaseEvent += HandleKeyReleaseEvent;

        vtexture.Playing = true;
        stage.ShowAll ();
        control_play.Hide ();
    }