void DrawShapes(Brush brush, PointF location, Size size, Graphics g)
{
g.SaveTransform();
g.TranslateTransform(location);
g.RotateTransform(20);
// rectangle
g.FillRectangle(brush, new RectangleF(size));
// ellipse
g.TranslateTransform(0, size.Height + 20);
g.FillEllipse(brush, new RectangleF(size));
// pie
g.TranslateTransform(0, size.Height + 20);
g.FillPie(brush, new RectangleF(new SizeF(size.Width * 2, size.Height)), 0, 360);
// polygon
g.TranslateTransform(0, size.Height + 20);
var polygon = GetPolygon();
g.FillPolygon(brush, polygon);
g.RestoreTransform();
}
void DirectTests(Graphics g)
{
// test translate/rotate
DrawRotatedLines(g, Colors.SkyBlue, rotatedLineCenter, (center, angle) => {
g.TranslateTransform(center);
g.RotateTransform(angle);
g.TranslateTransform(-center);
});
// test translate/rotate/scale
DrawRotatedLines(g, Colors.Salmon, rotatedLineCenter, (center, angle) => {
g.TranslateTransform(center);
g.RotateTransform(angle);
g.TranslateTransform(-center);
g.ScaleTransform(.4f);
});
// test rotating arcs
DrawRotatedArcs(g, Colors.LightBlue, rotatedLineCenter, (center, angle) => {
g.TranslateTransform(center);
g.RotateTransform(angle);
g.TranslateTransform(-center);
});
// test transformed text
DrawRotatedText(g, Colors.Lime, rotatedTextCenter, (center, angle) => {
g.TranslateTransform(center - 40);
g.RotateTransform(angle);
g.TranslateTransform(-center + 40);
});
// Test image drawing
g.SaveTransform();
g.TranslateTransform(imageScaleLocation + image.Size / 2);
g.ScaleTransform(1, -1);
g.TranslateTransform(-imageScaleLocation - image.Size / 2);
g.DrawImage(image, imageScaleLocation);
g.TranslateTransform(0, -50);
g.TranslateTransform(imageScaleLocation + image.Size / 2);
g.ScaleTransform(0.3f);
g.TranslateTransform(-imageScaleLocation - image.Size / 2);
g.DrawImage(image, imageScaleLocation);
g.RestoreTransform();
// test skewing
g.SaveTransform();
g.MultiplyTransform(Matrix.FromSkew(20, 20));
var textSize = g.MeasureString(font, "Skewed Text");
g.DrawText(font, Colors.White, new PointF(110, 0), "Skewed Text");
g.DrawLine(Pens.White, 110, textSize.Height + 2, 110 + textSize.Width, textSize.Height + 2);
g.RestoreTransform();
// test more drawing operations
g.SaveTransform();
g.TranslateTransform(480, 20);
g.ScaleTransform(0.4f);
g.RotateTransform(90);
PixelOffsetSection.Draw(g);
g.RestoreTransform();
}