public static void PaintOverview(IGraphics g, SizeI2 totalSize, RectangleI2 visibleWin,
Func <int, int, Bitmap2> getOverviewBitmap, float zoomFactorX, float zoomFactorY)
{
Size2 overview = CalcOverviewSize(visibleWin.Width, visibleWin.Height, totalSize.Width, totalSize.Height);
Rectangle2 win = CalcWin(overview, totalSize, visibleWin, zoomFactorX, zoomFactorY);
g.FillRectangle(Brushes2.White, 0, visibleWin.Height - overview.Height, overview.Width, overview.Height);
g.DrawImageUnscaled(getOverviewBitmap((int)overview.Width, (int)overview.Height), 0,
visibleWin.Height - overview.Height);
Brush2 b = new Brush2(Color2.FromArgb(30, 0, 0, 255));
if (win.X > 0)
{
g.FillRectangle(b, 0, visibleWin.Height - overview.Height, win.X, overview.Height);
}
if (overview.Width - win.X - win.Width > 0)
{
g.FillRectangle(b, win.X + win.Width, visibleWin.Height - overview.Height, overview.Width - win.X - win.Width,
overview.Height);
}
if (win.Y > 0)
{
g.FillRectangle(b, win.X, visibleWin.Height - overview.Height, win.Width, win.Y);
}
if (overview.Height - win.Y - win.Height > 0)
{
g.FillRectangle(b, win.X, visibleWin.Height - overview.Height + win.Y + win.Height - 1, win.Width,
overview.Height - win.Y - win.Height);
}
g.DrawRectangle(Pens2.Black, 0, visibleWin.Height - overview.Height - 1, overview.Width, overview.Height);
g.DrawRectangle(Pens2.Blue, win.X, visibleWin.Height - overview.Height - 1 + win.Y, win.Width, win.Height);
}
public static Rectangle2 CalcWin(Size2 overview, SizeI2 totalSize, RectangleI2 visibleWin, float zoomFactorX,
float zoomFactorY)
{
float winX = visibleWin.X*overview.Width/totalSize.Width;
float winWidth = visibleWin.Width*overview.Width/totalSize.Width/zoomFactorX;
if (winWidth > overview.Width - winX){
winWidth = overview.Width - winX;
}
float winY = visibleWin.Y*overview.Height/totalSize.Height;
float winHeight = visibleWin.Height*overview.Height/totalSize.Height/zoomFactorY;
if (winHeight > overview.Height - winY){
winHeight = overview.Height - winY;
}
return new Rectangle2(winX, winY, winWidth, winHeight);
}
public static void PaintOverview(IGraphics g, SizeI2 totalSize, RectangleI2 visibleWin,
Func <int, int, Bitmap2> getOverviewBitmap, float zoomFactorX, float zoomFactorY, bool overviewTopRight)
{
if (getOverviewBitmap == null)
{
return;
}
Size2 overview = CalcOverviewSize(visibleWin.Width, visibleWin.Height, totalSize.Width, totalSize.Height);
Rectangle2 win = CalcWin(overview, totalSize, visibleWin, zoomFactorX, zoomFactorY);
float xpos = overviewTopRight ? visibleWin.Width - overview.Width - 1 : 0;
float ypos = overviewTopRight ? 1 : visibleWin.Height - overview.Height;
g.FillRectangle(Brushes2.White, xpos, ypos, overview.Width, overview.Height);
Bitmap2 bm = getOverviewBitmap((int)overview.Width, (int)overview.Height);
if (bm == null)
{
return;
}
g.DrawImageUnscaled(bm, xpos, ypos);
Brush2 b = new Brush2(Color2.FromArgb(30, 0, 0, 255));
if (win.X > 0)
{
g.FillRectangle(b, xpos, ypos, win.X, overview.Height);
}
if (overview.Width - win.X - win.Width > 0)
{
g.FillRectangle(b, xpos + win.X + win.Width, ypos, overview.Width - win.X - win.Width, overview.Height);
}
if (win.Y > 0)
{
g.FillRectangle(b, xpos + win.X, ypos, win.Width, win.Y);
}
if (overview.Height - win.Y - win.Height > 0)
{
g.FillRectangle(b, xpos + win.X, ypos + win.Y + win.Height - 1, win.Width, overview.Height - win.Y - win.Height);
}
g.DrawRectangle(Pens2.Black, xpos, ypos - 1, overview.Width, overview.Height);
g.DrawRectangle(Pens2.Blue, xpos + win.X, ypos - 1 + win.Y, win.Width, win.Height);
if (win.Width < 5 && win.Height < 5)
{
g.DrawLine(Pens2.Red, xpos + win.X, ypos + win.Y, xpos + win.X + 5, ypos + win.Y);
g.DrawLine(Pens2.Red, xpos + win.X, ypos + win.Y, xpos + win.X, ypos + win.Y + 5);
g.DrawLine(Pens2.Red, xpos + win.X, ypos + win.Y, xpos + win.X + 7, ypos + win.Y + 7);
}
}
public static Rectangle2 CalcWin(Size2 overview, SizeI2 totalSize, RectangleI2 visibleWin, float zoomFactorX,
float zoomFactorY)
{
float winX = visibleWin.X * overview.Width / totalSize.Width;
float winWidth = visibleWin.Width * overview.Width / totalSize.Width / zoomFactorX;
if (winWidth > overview.Width - winX)
{
winWidth = overview.Width - winX;
}
float winY = visibleWin.Y * overview.Height / totalSize.Height;
float winHeight = visibleWin.Height * overview.Height / totalSize.Height / zoomFactorY;
if (winHeight > overview.Height - winY)
{
winHeight = overview.Height - winY;
}
return(new Rectangle2(winX, winY, winWidth, winHeight));
}
public static void PaintOverview(IGraphics g, SizeI2 totalSize, RectangleI2 visibleWin,
Func<int, int, Bitmap2> getOverviewBitmap, float zoomFactorX, float zoomFactorY)
{
Size2 overview = CalcOverviewSize(visibleWin.Width, visibleWin.Height, totalSize.Width, totalSize.Height);
Rectangle2 win = CalcWin(overview, totalSize, visibleWin, zoomFactorX, zoomFactorY);
g.FillRectangle(Brushes2.White, 0, visibleWin.Height - overview.Height, overview.Width, overview.Height);
g.DrawImageUnscaled(getOverviewBitmap((int) overview.Width, (int) overview.Height), 0,
visibleWin.Height - overview.Height);
Brush2 b = new Brush2(Color2.FromArgb(30, 0, 0, 255));
if (win.X > 0){
g.FillRectangle(b, 0, visibleWin.Height - overview.Height, win.X, overview.Height);
}
if (overview.Width - win.X - win.Width > 0){
g.FillRectangle(b, win.X + win.Width, visibleWin.Height - overview.Height, overview.Width - win.X - win.Width,
overview.Height);
}
if (win.Y > 0){
g.FillRectangle(b, win.X, visibleWin.Height - overview.Height, win.Width, win.Y);
}
if (overview.Height - win.Y - win.Height > 0){
g.FillRectangle(b, win.X, visibleWin.Height - overview.Height + win.Y + win.Height - 1, win.Width,
overview.Height - win.Y - win.Height);
}
g.DrawRectangle(Pens2.Black, 0, visibleWin.Height - overview.Height - 1, overview.Width, overview.Height);
g.DrawRectangle(Pens2.Blue, win.X, visibleWin.Height - overview.Height - 1 + win.Y, win.Width, win.Height);
}