public static void AdjustWindowSize(HuffLibrary.Tree HTree, DrawingArea Canvas)
{
int ImageWidth, ImageHeight;
Canvas.SetSizeRequest (0, 0);
//Reduce window size in case our tree is small
GetAreaSize (HTree.GetRootNode (), out ImageWidth, out ImageHeight, cellsize);
int width, height;
Canvas.GdkWindow.GetSize (out width, out height);
Canvas.SetSizeRequest (ImageWidth, ImageHeight);
if (height > ImageHeight)
Canvas.GdkWindow.Resize (width, ImageHeight);
}
void SaveToFile(HuffLibrary.Tree HTree, string title)
{
Gtk.FileChooserDialog dlg = new Gtk.FileChooserDialog (title, this, FileChooserAction.Save, Gtk.Stock.Cancel, ResponseType.Cancel, Gtk.Stock.Ok, ResponseType.Ok);
Gtk.FileFilter filter = new Gtk.FileFilter ();
filter.AddPattern ("*.png");
dlg.Filter = filter;
int ret = dlg.Run ();
if (ret == (int)Gtk.ResponseType.Ok) {
string filename = dlg.Filename;
if (!filename.ToLower ().Contains (".png"))
filename += ".png";
TreeGraphics.DrawToFile (HTree, draw_options, filename);
}
dlg.Destroy ();
}
public static void DrawToFile(HuffLibrary.Tree HTree, DrawSettings Options, string FileName)
{
int width, height;
GetAreaSize (HTree.GetRootNode (), out width, out height, 30);
Gdk.Pixmap canvas = new Pixmap (null, width, height, 24);
var bg_gc = new Gdk.GC (canvas);
bg_gc.RgbFgColor = new Color (0, 0, 0);
canvas.DrawRectangle (bg_gc, true, 0, 0, width, height);
if (Options.draw_grid)
DrawGrid (canvas, 30);
var gc = new Gdk.GC (canvas);
gc.RgbFgColor = new Color (255, 255, 0);
priv_DrawList (gc, canvas, HTree.GetRootNode (), 0, 0, 0);
Gdk.Pixbuf buffer = Gdk.Pixbuf.FromDrawable (canvas, Screen.Default.RgbColormap, 0, 0, 0, 0, width, height);
buffer.Save (FileName, "png");
}
private static int priv_GetAreaSize(HuffLibrary.Node Root, int Padding, int Level, int Parent, ref int Width, ref int Height, int CellSize)
{
int ret = Level;
Width = Math.Max (Width, (Padding + 1) * CellSize);
Height = Math.Max (Height, (Level - Parent + 1) * 2 * CellSize);
if (Root.right != null)
ret = priv_GetAreaSize (Root.right, Padding + 1, Level + 1, Level, ref Width, ref Height, CellSize);
if (Root.left != null)
ret = priv_GetAreaSize (Root.left, Padding + 1, ret + 1, Level, ref Width, ref Height, CellSize);
return ret;
}
public static void GetAreaSize(HuffLibrary.Node Root, out int Width, out int Height, int CellSize)
{
Width = Height = 0;
priv_GetAreaSize (Root, 0, 0, 0, ref Width, ref Height, CellSize);
}
public static void DrawTree(HuffLibrary.Tree HTree, Gtk.DrawingArea Canvas, DrawSettings Options)
{
Canvas.GdkWindow.BeginPaintRegion (Canvas.GdkWindow.ClipRegion);
Canvas.GdkWindow.Background = new Color (0, 0, 0);
if (Options.draw_grid)
DrawGrid (Canvas.GdkWindow, cellsize);
DrawList (Canvas.GdkWindow, HTree.GetRootNode ());
Canvas.GdkWindow.EndPaint ();
}