public void ZoomIn(ViewZoomAnchor anchor, int zoomFactor)
{
this._baseSize = this.Size;
this._baseLocation = this.Location;
int oldWidth = this._baseSize.Width;
int oldHeight = this._baseSize.Height;
int locationX = this.Location.X;
int locationY = this.Location.Y;
int newWidth = (zoomFactor * this.ClientSize.Width) + (this.Size.Width - this.ClientSize.Width);
int newHeight = (zoomFactor * this.ClientSize.Height) + (this.Size.Height - this.ClientSize.Height);
// First change size, THEN move the window
// Otherwise there is a chance to fail in a loop
// Zoom requied -> Moved the windows 1st -> Focus is lost -> Window is moved back -> Focus is back on -> Zoom required -> ...
this.Size = new Size(newWidth, newHeight);
switch (anchor)
{
case ViewZoomAnchor.NW:
break;
case ViewZoomAnchor.N:
this.Location = new Point(locationX - newWidth / 2 + oldWidth / 2, locationY);
break;
case ViewZoomAnchor.NE:
this.Location = new Point(locationX - newWidth + oldWidth, locationY);
break;
case ViewZoomAnchor.W:
this.Location = new Point(locationX, locationY - newHeight / 2 + oldHeight / 2);
break;
case ViewZoomAnchor.C:
this.Location = new Point(locationX - newWidth / 2 + oldWidth / 2, locationY - newHeight / 2 + oldHeight / 2);
break;
case ViewZoomAnchor.E:
this.Location = new Point(locationX - newWidth + oldWidth, locationY - newHeight / 2 + oldHeight / 2);
break;
case ViewZoomAnchor.SW:
this.Location = new Point(locationX, locationY - newHeight + this._baseSize.Height);
break;
case ViewZoomAnchor.S:
this.Location = new Point(locationX - newWidth / 2 + oldWidth / 2, locationY - newHeight + oldHeight);
break;
case ViewZoomAnchor.SE:
this.Location = new Point(locationX - newWidth + oldWidth, locationY - newHeight + oldHeight);
break;
}
}
public MainForm(ApplicationContext context)
{
this._context = context;
this._zoomAnchorMap = new Dictionary <ViewZoomAnchor, RadioButton>();
this._cachedThumbnailZoomAnchor = ViewZoomAnchor.NW;
this._suppressEvents = false;
this._minimumSize = new Size(80, 60);
this._maximumSize = new Size(80, 60);
InitializeComponent();
this.ThumbnailsList.DisplayMember = "Title";
this.InitZoomAnchorMap();
}
public static ZoomAnchor Convert(ViewZoomAnchor value)
{
// Cheat based on fact that the order and byte values of both enums are the same
return((ZoomAnchor)((int)value));
}
public static ZoomAnchor Convert(ViewZoomAnchor value)
{
// Cheat based on fact that the order and byte values of both enums are the same
return (ZoomAnchor)((int)value);
}
public void ZoomIn(ViewZoomAnchor anchor, int zoomFactor)
{
this._baseSize = this.Size;
this._baseLocation = this.Location;
int oldWidth = this._baseSize.Width;
int oldHeight = this._baseSize.Height;
int locationX = this.Location.X;
int locationY = this.Location.Y;
int newWidth = (zoomFactor * this.ClientSize.Width) + (this.Size.Width - this.ClientSize.Width);
int newHeight = (zoomFactor * this.ClientSize.Height) + (this.Size.Height - this.ClientSize.Height);
// First change size, THEN move the window
// Otherwise there is a chance to fail in a loop
// Zoom requied -> Moved the windows 1st -> Focus is lost -> Window is moved back -> Focus is back on -> Zoom required -> ...
this.Size = new Size(newWidth, newHeight);
switch (anchor)
{
case ViewZoomAnchor.NW:
break;
case ViewZoomAnchor.N:
this.Location = new Point(locationX - newWidth / 2 + oldWidth / 2, locationY);
break;
case ViewZoomAnchor.NE:
this.Location = new Point(locationX - newWidth + oldWidth, locationY);
break;
case ViewZoomAnchor.W:
this.Location = new Point(locationX, locationY - newHeight / 2 + oldHeight / 2);
break;
case ViewZoomAnchor.C:
this.Location = new Point(locationX - newWidth / 2 + oldWidth / 2, locationY - newHeight / 2 + oldHeight / 2);
break;
case ViewZoomAnchor.E:
this.Location = new Point(locationX - newWidth + oldWidth, locationY - newHeight / 2 + oldHeight / 2);
break;
case ViewZoomAnchor.SW:
this.Location = new Point(locationX, locationY - newHeight + this._baseSize.Height);
break;
case ViewZoomAnchor.S:
this.Location = new Point(locationX - newWidth / 2 + oldWidth / 2, locationY - newHeight + oldHeight);
break;
case ViewZoomAnchor.SE:
this.Location = new Point(locationX - newWidth + oldWidth, locationY - newHeight + oldHeight);
break;
}
}
