/// <summary>
/// Render a star shape to buffer
/// </summary>
void DrawStar(PixelsBuffer buffer, Color color, Color background)
{
IDrawer drawer = new Drawer(buffer);
drawer.Clear(background);
Fill fill = new Fill(color);
double[] coordinates = TestFactory.Star();
TestFactory.Scale(coordinates, 2.0);
//drawer.DrawRectangle(stroke, 0, 0, buffer.Width, buffer.Height);
drawer.DrawPolygon(fill, coordinates);
}
void DrawLion(PixelsBuffer buffer, int x, int y)
{
//create a new drawing context
//PixelBuffer buffer = new PixelBuffer(400, 400);
IDrawer drawer = new Drawer(buffer);
//get coordinates and colors
double[][] polygons = LionPathHelper.GetLionPolygons();
Cross.Drawing.Color[] colors = LionPathHelper.GetLionColors();
//iterate all polygons and draw them
double[] coordinates = null;
drawer.Translate(x, y);
for (int i = 0; i < polygons.Length; i++)
{
coordinates = polygons[i];
Fill fill = new Fill(colors[i]);
drawer.DrawPolygon(fill, coordinates);
}
}
void DrawLion()
{
//create a new drawing context
PixelsBuffer buffer = new PixelsBuffer(400, 400);
IDrawer drawer = new Drawer(buffer);
drawer.Clear(Colors.White);
//get coordinates and colors
double[][] polygons = LionPathHelper.GetLionPolygons();
Color[] colors = LionPathHelper.GetLionColors();
//iterate all polygons and draw them
double[] coordinates = null;
for (int i = 0; i < polygons.Length; i++)
{
coordinates = polygons[i];
Fill fill = new Fill(colors[i]);
drawer.DrawPolygon(fill, coordinates);
}
//show to screen
DisplayBuffer(buffer);
}
private void btnDrawPolygon_Click(object sender, EventArgs e)
{
//create a new drawing context
PixelsBuffer buffer = new PixelsBuffer(400, 400);
IDrawer drawer = new Drawer(buffer);
drawer.Clear(Colors.White);
//create fill for drawing
Fill fill = Fills.MistyRose;
//populate polygon coordinate data
double[] coordinates = new double[]
{
30, 300,
150, 40,
300, 260,
130, 200,
//30, 300 //the last point is omitted to show that the end point is important
//for rendering stroke
};
//draw content
drawer.DrawPolygon(fill, coordinates);
//show to screen
DisplayBuffer(buffer);
}
private void btnDrawTest_Click(object sender, EventArgs e)
{
if (lstTests.SelectedIndex < 0) lstTests.SelectedIndex = 0;
//create a new drawing context
PixelsBuffer buffer = new PixelsBuffer(600, 600);
IDrawer drawer = new Drawer(buffer);
drawer.Clear(Colors.White);
//create fill for drawing
Fill fill = Fills.Black;
//populate polygon coordinate data
double[] coordinates = null;
switch (lstTests.SelectedIndex)
{
case 0:
coordinates = TestFactory.Triangle();
TestFactory.Scale(coordinates, 5.0);
break;
case 1:
coordinates = TestFactory.Star();
TestFactory.Scale(coordinates, 5.0);
break;
case 2:
coordinates = TestFactory.Crown();
TestFactory.Scale(coordinates, 5.0);
break;
case 3:
coordinates = TestFactory.CirclePattern1(buffer.Width, buffer.Height);
break;
case 4:
coordinates = TestFactory.CirclePattern2(buffer.Width, buffer.Height);
break;
case 5:
coordinates = TestFactory.Complex1();
break;
case 6:
coordinates = TestFactory.Complex2();
break;
case 7:
coordinates = TestFactory.Complex3();
break;
case 8:
DrawLion();
break;
}
if (coordinates != null)
{
//draw content
drawer.DrawPolygon(fill, coordinates);
//show to screen
DisplayBuffer(buffer);
}
}
