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| using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
using HopeForm.filters_forms;
using APIS;
using WeifenLuo.WinFormsUI;
namespace HopeForm
{
public partial class ImageDoc : Content
{
public System.Drawing.Bitmap image = null;
public string fileName = null;
public int width;
public int height;
private float zoom = 1;
private IDocumentsHost host = null;
private bool dragging = false;
private Point start, end, startW, endW;
API api = new API();
// Image property
public Bitmap Image
{
get { return image; }
}
// Width property
public int ImageWidth
{
get { return width; }
}
// Height property
public int ImageHeight
{
get { return height; }
}
// Zoom property
public float Zoom
{
get { return zoom; }
}
// FileName property
// return file name if the document was created from file or null
public string FileName
{
get { return fileName; }
}
// Events
public delegate void SelectionEventHandler(object sender, SelectionEventArgs e);
public event EventHandler DocumentChanged;
public event EventHandler ZoomChanged;
public event SelectionEventHandler MouseImagePosition;
public event SelectionEventHandler SelectionChanged;
// Constructors
private ImageDoc(HopeForm.IDocumentsHost host)
{
this.host = host;
}
// Construct from file
public ImageDoc(string fileName, HopeForm.IDocumentsHost host)
: this(host)
{
try
{
// load image
api.image = (Bitmap)Bitmap.FromFile(fileName);
// format image
AForge.Imaging.Image.FormatImage(ref api.image);
this.api.fileName = fileName;
}
catch (Exception)
{
throw new ApplicationException("Failed loading image");
}
Init();
}
// Construct from image
public ImageDoc(System.Drawing.Bitmap image, HopeForm.IDocumentsHost host)
: this(host)
{
this.api.image = image;
AForge.Imaging.Image.FormatImage(ref this.api.image);
Init();
}
// Init the document
private void Init()
{
// init components
InitializeComponent();
// form style
SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.DoubleBuffer | ControlStyles.ResizeRedraw, true);
// init scroll bars
this.AutoScroll = true;
api.UpdateSize();
}
public ImageDoc()
{
InitializeComponent();
}
// On "Image->Clone" item click
private void cloneToolStripMenuItem_Click(object sender, EventArgs e)
{
api.Clone();
}
private void cropToolStripMenuItem_Click(object sender, EventArgs e)
{
api.Crop();
}
private void rotate90DegreeToolStripMenuItem_Click(object sender, EventArgs e)
{
api.Rotate90Degree();
}
private void mirrorToolStripMenuItem_Click(object sender, EventArgs e)
{
api.MirrorImage();
}
private void flipToolStripMenuItem_Click(object sender, EventArgs e)
{
api.FlipImage();
}
private void backToolStripMenuItem_Click(object sender, EventArgs e)
{
api.BackImage();
}
private void fitToScreenToolStripMenuItem_Click(object sender, EventArgs e)
{
api.FitToScreen();
}
private void zoomOutToolStripMenuItem_Click(object sender, EventArgs e)
{
api.ZoomOut();
}
private void zoomInToolStripMenuItem_Click(object sender, EventArgs e)
{
api.ZoomIn();
}
private void toolStripMenuItem10_Click(object sender, EventArgs e)
{
api.ZoomImage();
}
private void toolStripMenuItem9_Click(object sender, EventArgs e)
{
api.ZoomImage();
}
private void toolStripMenuItem8_Click(object sender, EventArgs e)
{
api.ZoomImage();
}
private void toolStripMenuItem7_Click(object sender, EventArgs e)
{
api.ZoomImage();
}
private void toolStripMenuItem6_Click(object sender, EventArgs e)
{
api.ZoomImage();
}
private void toolStripMenuItem5_Click(object sender, EventArgs e)
{
api.ZoomImage();
}
private void toolStripMenuItem4_Click(object sender, EventArgs e)
{
api.ZoomImage();
}
private void toolStripMenuItem3_Click(object sender, EventArgs e)
{
api.ZoomImage();
}
private void toolStripMenuItem2_Click(object sender, EventArgs e)
{
api.ZoomImage();
}
// Resize the image
public void ResizeImage()
{
ResizeForm form = new ResizeForm();
form.OriginalSize = new Size(api.width, api.height);
if (form.ShowDialog() == DialogResult.OK)
{
api.ApplyFilter(form.Filter);
}
}
private void resizeToolStripMenuItem_Click(object sender, EventArgs e)
{
ResizeImage();
}
// Rotate the image
public void RotateImage()
{
RotateForm form = new RotateForm();
if (form.ShowDialog() == DialogResult.OK)
{
api.ApplyFilter(form.Filter);
}
}
private void rotateToolStripMenuItem_Click(object sender, EventArgs e)
{
RotateImage();
}
// Calculate image and screen coordinates of the point
private void GetImageAndScreenPoints(Point point, out Point imgPoint, out Point screenPoint)
{
Rectangle rc = this.ClientRectangle;
int width = (int)(this.width * zoom);
int height = (int)(this.height * zoom);
int x = (rc.Width < width) ? this.AutoScrollPosition.X : (rc.Width - width) / 2;
int y = (rc.Height < height) ? this.AutoScrollPosition.Y : (rc.Height - height) / 2;
int ix = Math.Min(Math.Max(x, point.X), x + width - 1);
int iy = Math.Min(Math.Max(y, point.Y), y + height - 1);
ix = (int)((ix - x) / zoom);
iy = (int)((iy - y) / zoom);
// image point
imgPoint = new Point(ix, iy);
// screen point
screenPoint = this.PointToScreen(new Point((int)(ix * zoom + x), (int)(iy * zoom + y)));
}
// Normalize points so, that pt1 becomes top-left point of rectangle
// and pt2 becomes right-bottom
private void NormalizePoints(ref Point pt1, ref Point pt2)
{
Point t1 = pt1;
Point t2 = pt2;
pt1.X = Math.Min(t1.X, t2.X);
pt1.Y = Math.Min(t1.Y, t2.Y);
pt2.X = Math.Max(t1.X, t2.X);
pt2.Y = Math.Max(t1.Y, t2.Y);
}
// Draw selection rectangle
private void DrawSelectionFrame(Graphics g)
{
Point sp = startW;
Point ep = endW;
// Normalize points
NormalizePoints(ref sp, ref ep);
// Draw reversible frame
ControlPaint.DrawReversibleFrame(new Rectangle(sp.X, sp.Y, ep.X - sp.X + 1, ep.Y - sp.Y + 1), Color.White, FrameStyle.Dashed);
}
// On mouse move
private void ImageDoc_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
if (dragging)
{
Graphics g = this.CreateGraphics();
// erase frame
DrawSelectionFrame(g);
// get selection end point
GetImageAndScreenPoints(new Point(e.X, e.Y), out end, out endW);
// draw frame
DrawSelectionFrame(g);
g.Dispose();
if (SelectionChanged != null)
{
Point sp = start;
Point ep = end;
// normalize start and end points
NormalizePoints(ref sp, ref ep);
SelectionChanged(this, new SelectionEventArgs(
sp, new Size(ep.X - sp.X + 1, ep.Y - sp.Y + 1)));
}
}
else
{
if (MouseImagePosition != null)
{
Rectangle rc = this.ClientRectangle;
int width = (int)(this.width * zoom);
int height = (int)(this.height * zoom);
int x = (rc.Width < width) ? this.AutoScrollPosition.X : (rc.Width - width) / 2;
int y = (rc.Height < height) ? this.AutoScrollPosition.Y : (rc.Height - height) / 2;
if ((e.X >= x) && (e.Y >= y) &&
(e.X < x + width) && (e.Y < y + height))
{
// mouse is over the image
MouseImagePosition(this, new SelectionEventArgs(
new Point((int)((e.X - x) / zoom), (int)((e.Y - y) / zoom))));
}
else
{
// mouse is outside image region
MouseImagePosition(this, new SelectionEventArgs(new Point(-1, -1)));
}
}
}
}
// On mouse leave
private void ImageDoc_MouseLeave(object sender, System.EventArgs e)
{
if ((!dragging) && (MouseImagePosition != null))
{
MouseImagePosition(this, new SelectionEventArgs(new Point(-1, -1)));
}
}
}
// Selection arguments
public class SelectionEventArgs : EventArgs
{
private Point location;
private Size size;
// Constructors
public SelectionEventArgs(Point location)
{
this.location = location;
}
public SelectionEventArgs(Point location, Size size)
{
this.location = location;
this.size = size;
}
// Location property
public Point Location
{
get { return location; }
}
// Size property
public Size Size
{
get { return size; }
}
}
} |
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