Exemplo n.º 1
0
        void Prepare()
        {
            cx = w / 2;
            cy = h / 2;

            //clear background
            drawer.Clear(Colors.White);

            //draw a black rectangle in center
            Fill fill = Fills.Gray;
            int  size = 15;

            drawer.DrawRectangle(fill, cx - size, cy - size, size * 2, size * 2);
        }
Exemplo n.º 2
0
        private void btnPushPop_Click(object sender, EventArgs e)
        {
            //original view
            drawer = new Drawer(buffer);
            Prepare();

            Fill fill = Fills.Red;

            fill.Opacity = 0.2;
            drawer.DrawRectangle(fill, 50, 0, 150, 50);
            drawer.PushMatrix();
            drawer.Rotate(20);
            drawer.DrawRectangle(fill, 50, 0, 150, 50);
            drawer.PushMatrix();
            drawer.Rotate(30);
            drawer.DrawRectangle(fill, 50, 0, 150, 50);

            //revert transformations
            fill         = Fills.Blue;
            fill.Opacity = 0.2;
            drawer.DrawRectangle(fill, 50, 0, 50, 20);
            drawer.PopMatrix();
            drawer.DrawRectangle(fill, 50, 0, 50, 20);
            drawer.PopMatrix();
            drawer.DrawRectangle(fill, 50, 0, 50, 20);

            DisplayOriginal(buffer);

            //discard after view 1, 2, 3
            DisplayAfter1(null);
            DisplayAfter2(null);
            DisplayAfter3(null);
            txtDesc1.Text = "";
            txtDesc2.Text = "";
            txtDesc3.Text = "";
        }
Exemplo n.º 3
0
 public override void Draw(IDrawer drawer)
 {
     drawer.DrawRectangle(4, 5);
 }
Exemplo n.º 4
0
 public void Draw(IDrawer drawer)
 {
     drawer.DrawRectangle(this);
 }
Exemplo n.º 5
0
        private void btnPushPop_Click(object sender, EventArgs e)
        {
            //original view
            drawer = new Drawer(buffer);
            Prepare();

            Fill fill = Fills.Red;
            fill.Opacity = 0.2;
            drawer.DrawRectangle(fill, 50, 0, 150, 50);
            drawer.PushMatrix();
            drawer.Rotate(20);
            drawer.DrawRectangle(fill, 50, 0, 150, 50);
            drawer.PushMatrix();
            drawer.Rotate(30);
            drawer.DrawRectangle(fill, 50, 0, 150, 50);

            //revert transformations
            fill = Fills.Blue;
            fill.Opacity = 0.2;
            drawer.DrawRectangle(fill, 50, 0, 50, 20);
            drawer.PopMatrix();
            drawer.DrawRectangle(fill, 50, 0, 50, 20);
            drawer.PopMatrix();
            drawer.DrawRectangle(fill, 50, 0, 50, 20);

            DisplayOriginal(buffer);

            //discard after view 1, 2, 3
            DisplayAfter1(null);
            DisplayAfter2(null);
            DisplayAfter3(null);
            txtDesc1.Text = "";
            txtDesc2.Text = "";
            txtDesc3.Text = "";
        }