protected void loadLayerHandler(object sender, EventArgs args)
{
ToolStripButton button = sender as ToolStripButton;
MapZone zone = button.Tag as MapZone;
using (LoadLayerDialog dlg = new LoadLayerDialog())
{
DialogResult result;
dlg.LayerNames = worldMap.LayerNames;
result = dlg.ShowDialog();
if (result != DialogResult.OK)
{
return;
}
int tilesWidth = zone.MaxTileCoord.x - zone.MinTileCoord.x + 1;
int tilesHeight = zone.MaxTileCoord.z - zone.MinTileCoord.z + 1;
int zoneWidthMeters = tilesWidth * worldMap.TileSize / worldMap.OneMeter;
int zoneHeightMeters = tilesHeight * worldMap.TileSize / worldMap.OneMeter;
int metersPerPixel = zoneWidthMeters / dlg.LayerMapImage.Width;
Debug.Assert(metersPerPixel == (zoneHeightMeters / dlg.LayerMapImage.Height));
int samplesPerTile = WorldMap.metersPerTile / metersPerPixel;
MapLayer layer = worldMap.GetLayer(dlg.LayerName);
for (int z = 0; z < tilesHeight; z++)
{
int dz = z + zone.MinTileCoord.z;
for (int x = 0; x < tilesWidth; x++)
{
int dx = x + zone.MinTileCoord.x;
CoordXZ tileCoord = new CoordXZ(dx, dz, WorldMap.tileSize);
MapBuffer tileMap;
if (layer is ColorMapLayer)
{
ColorMapLayer tmpLayer = layer as ColorMapLayer;
tileMap = tmpLayer.CreateCompatibleMapBuffer(dlg.LayerMapImage, metersPerPixel,
x * samplesPerTile, z * samplesPerTile, samplesPerTile);
}
else
{
ValueMapLayer tmpLayer = layer as ValueMapLayer;
tileMap = null;
}
MapTile tile = worldMap.GetTile(tileCoord);
if (tileMap.MetersPerSample != layer.MetersPerSample)
{
tileMap = tileMap.Scale(worldMap.MetersPerTile / layer.MetersPerSample);
}
layer.CopyIn(tileCoord, tileMap);
}
}
}
}