using System;
using System.Drawing;
using System.Windows.Forms;

namespace ConvImgCpc {
	public partial class ImageCpc : Form {
		private Capture fenetreCapture;
		private int captx = -1, capty = -1;
		private bool memoClick = false;

		protected override bool ProcessCmdKey(ref Message msg, Keys keyData) {
			if (modeCaptureSprites.Checked) {
				bool sel = false;
				int incx = 0, incy = 0;
				switch (keyData) {
					case Keys.Left:
						incx = -1;
						break;

					case Keys.Right:
						incx = 1;
						break;

					case Keys.Up:
						incy = -1;
						break;

					case Keys.Down:
						incy = 1;
						break;

					case Keys.Space:
						sel = true;
						break;
				}
				if (incx != 0 || incy != 0 || sel) {
					int sprSizeX = fenetreCapture.CaptSizeX << 5;
					int sprSizeY = fenetreCapture.CaptSizeY << 5;
					Graphics g = Graphics.FromImage(pictureBox.Image);
					if (captx > -1 && capty > -1) {
						Cursor.Position = new Point(Cursor.Position.X + incx, Cursor.Position.Y + incy);
						XorDrawing.DrawXorRectangle(g, (Bitmap)pictureBox.Image, captx, capty, captx + sprSizeX, capty + sprSizeY);
						if (sel) {
							main.SetInfo("Touche Espace=>Appel fenetreCapture.SetCapture");
							fenetreCapture.SetCapture(captx, capty);
						}
					}
					captx += incx;
					capty += incy;
					XorDrawing.DrawXorRectangle(g, (Bitmap)pictureBox.Image, captx, capty, captx + sprSizeX, capty + sprSizeY);
					pictureBox.Refresh();
					return true;
				}
			}
			return base.ProcessCmdKey(ref msg, keyData);
		}

		private void CaptureSprites(MouseEventArgs e) {
			int sprSizeX = fenetreCapture.CaptSizeX << 5;
			int sprSizeY = fenetreCapture.CaptSizeY << 5;
			Graphics g = Graphics.FromImage(pictureBox.Image);
			if (captx > -1 && capty > -1) {
				XorDrawing.DrawXorRectangle(g, (Bitmap)pictureBox.Image, captx, capty, captx + sprSizeX, capty + sprSizeY);
				if (e.Button == MouseButtons.Left) {
					main.SetInfo("Click=>appel fenetreCapture.SetCapture (true)");
					fenetreCapture.SetCapture(captx, capty, !memoClick);
					memoClick = true;
				}
				else
					memoClick = false;
			}
			captx = e.X / (chkX2.Checked ? 2 : 1) & 0xFFE;
			capty = e.Y / (chkX2.Checked ? 2 : 1) & 0xFFE;
			XorDrawing.DrawXorRectangle(g, (Bitmap)pictureBox.Image, captx, capty, captx + sprSizeX, capty + sprSizeY);
			pictureBox.Refresh();
		}

		private void pictureBox_MouseLeave(object sender, EventArgs e) {
			if (fenetreCapture != null) {
				int sprSizeX = fenetreCapture.CaptSizeX << 5;
				int sprSizeY = fenetreCapture.CaptSizeY << 5;
				Graphics g = Graphics.FromImage(pictureBox.Image);
				if (captx > -1 && capty > -1)
					XorDrawing.DrawXorRectangle(g, (Bitmap)pictureBox.Image, captx, capty, captx + sprSizeX, capty + sprSizeY);

				pictureBox.Refresh();
				captx = -1;
				capty = -1;
			}
		}

		private void CloseCapture() {
			if (fenetreCapture != null) {
				fenetreCapture.Hide();
				fenetreCapture.Close();
				fenetreCapture.Dispose();
				fenetreCapture = null;
			}
		}

		private void modeCaptureSprites_CheckedChanged(object sender, EventArgs e) {
			if (modeCaptureSprites.Checked) {
				main.Enabled = false;
				fenetreCapture = new Capture(main, this);
				fenetreCapture.Show();
			}
			else {
				CloseCapture();
				main.Enabled = true;
			}
		}

		private void chkGrilleSprite_CheckedChanged(object sender, EventArgs e) {
			main.Enabled = !chkGrilleSprite.Checked;
			Render(true);
			if (!chkGrilleSprite.Checked)
				Render(true, true);
		}
	}
}