public Extras(IEndlessCanvas target, FloatingImage?importFloat, FloatingText?textFloat)
{
_target = target ?? throw new ArgumentNullException(nameof(target));
_importFloat = importFloat;
_textFloat = textFloat;
InitializeComponent();
if (exportButton != null)
{
exportButton.Enabled = target.SelectedTiles().Count > 0;
}
}
private void ExportButton_Click(object sender, EventArgs e)
{
if (saveJpegDialog == null)
{
return;
}
// Pick path
string?path;
var result = saveJpegDialog.ShowDialog();
switch (result)
{
case DialogResult.OK:
case DialogResult.Yes:
path = saveJpegDialog.FileName;
break;
default: return;
}
// user feedback
if (exportButton != null)
{
exportButton.Enabled = false;
}
Text = "Export: saving to disk";
Refresh();
// read selected area
var selected = _target.SelectedTiles();
int top = int.MaxValue;
int left = int.MaxValue;
int right = int.MinValue;
int bottom = int.MinValue;
foreach (var key in selected.OrEmpty())
{
top = Math.Min(top, key.Y);
left = Math.Min(left, key.X);
bottom = Math.Max(bottom, key.Y);
right = Math.Max(right, key.X);
}
bottom += 1; right += 1; // include the tile contents
var width = (right - left) * TileImage.Size;
var height = (bottom - top) * TileImage.Size;
// render and save bitmap
using (var bmp = new Bitmap(width, height, PixelFormat.Format32bppArgb))
{
((EndlessCanvas)_target).RenderToImage(bmp, top, left, selected);
Application.DoEvents();
bmp.SaveJpeg(path);
}
Text = "Export COMPLETE";
Refresh();
if (exportButton != null)
{
exportButton.Enabled = _target.SelectedTiles().Count > 0;
}
}