// Update the dimmed bitmap. If the intensity is < 1 and we're using a bitmap, dim it.
public void UpdateDimmedBitmap()
{
if (dimmedBitmap != null)
{
dimmedBitmap.Dispose();
}
dimmedBitmap = null;
// Only dim bitmap if size isn't too large. Otherwise takes too much memory.
if ((mapType == MapType.Bitmap || mapType == MapType.PDF) && mapIntensity < 0.99F && (bitmap.PixelWidth * bitmap.PixelHeight) < 36000000)
{
Bitmap dimmed = null;
try {
dimmed = new Bitmap(bitmap.PixelWidth, bitmap.PixelHeight);
}
catch (Exception) {
return; // typically because not enough memory. Uses alternate dimming method.
}
Graphics g = Graphics.FromImage(dimmed);
ImageAttributes imageAttributes = new ImageAttributes();
imageAttributes.SetColorMatrix(ComputeColorMatrix());
g.DrawImage(((GDIPlus_Bitmap)bitmap).Bitmap, new Rectangle(0, 0, bitmap.PixelWidth, bitmap.PixelHeight), 0, 0, bitmap.PixelWidth, bitmap.PixelHeight, GraphicsUnit.Pixel, imageAttributes);
g.Dispose();
dimmedBitmap = new GDIPlus_Bitmap(dimmed);
}
else
{
dimmedBitmap = null;
}
}
// Set the map file used to draw.
public void SetMapFile(MapType newMapType, string newFilename)
{
this.mapType = newMapType;
this.filename = newFilename;
this.bitmap = null;
this.map = null;
if (newMapType == MapType.None)
{
map = null;
mapVersion = new MapFileFormat(MapFileFormatKind.None, 0);
bitmap = null;
pdfMapFile = null;
}
else if (newMapType == MapType.OCAD)
{
map = new Map(MapUtil.TextMetricsProvider, new GDIPlus_FileLoader(Path.GetDirectoryName(newFilename)));
mapVersion = InputOutput.ReadFile(newFilename, map);
bitmap = null;
pdfMapFile = null;
}
else if (newMapType == MapType.Bitmap)
{
map = null;
mapVersion = new MapFileFormat(MapFileFormatKind.None, 0);
Bitmap bm = (Bitmap)Image.FromFile(newFilename);
bitmap = new GDIPlus_Bitmap(bm);
bitmapDpi = bm.HorizontalResolution;
pdfMapFile = null;
}
else if (newMapType == MapType.PDF)
{
string errorText;
map = null;
mapVersion = new MapFileFormat(MapFileFormatKind.None, 0);
Size bitmapSize;
pdfMapFile = MapUtil.ValidatePdf(newFilename, out bitmapDpi, out bitmapSize, out errorText);
if (pdfMapFile == null)
{
this.mapType = MapType.None;
bitmap = null;
}
else
{
Bitmap bm = (Bitmap)Image.FromFile(pdfMapFile.PngFileName);
bitmap = new GDIPlus_Bitmap(bm);
}
}
else
{
Debug.Fail("bad maptype");
}
UpdateDimmedBitmap();
RaiseChanged(null); // redraw everything.
}
// Update the dimmed bitmap. If the intensity is < 1 and we're using a bitmap, dim it.
public void UpdateDimmedBitmap()
{
if (dimmedBitmap != null)
dimmedBitmap.Dispose();
dimmedBitmap = null;
// Only dim bitmap if size isn't too large. Otherwise takes too much memory.
if ((mapType == MapType.Bitmap || mapType == MapType.PDF) && mapIntensity < 0.99F && (bitmap.PixelWidth * bitmap.PixelHeight) < 36000000) {
Bitmap dimmed = null;
try {
dimmed = new Bitmap(bitmap.PixelWidth, bitmap.PixelHeight);
}
catch (Exception) {
return; // typically because not enough memory. Uses alternate dimming method.
}
Graphics g = Graphics.FromImage(dimmed);
ImageAttributes imageAttributes = new ImageAttributes();
imageAttributes.SetColorMatrix(ComputeColorMatrix());
g.DrawImage(((GDIPlus_Bitmap)bitmap).Bitmap, new Rectangle(0, 0, bitmap.PixelWidth, bitmap.PixelHeight), 0, 0, bitmap.PixelWidth, bitmap.PixelHeight, GraphicsUnit.Pixel, imageAttributes);
g.Dispose();
dimmedBitmap = new GDIPlus_Bitmap(dimmed);
}
else {
dimmedBitmap = null;
}
}
// Set the map file used to draw.
public void SetMapFile(MapType newMapType, string newFilename)
{
this.mapType = newMapType;
this.filename = newFilename;
this.bitmap = null;
this.map = null;
if (newMapType == MapType.None) {
map = null;
mapVersion = new MapFileFormat(MapFileFormatKind.None, 0);
bitmap = null;
pdfMapFile = null;
}
else if (newMapType == MapType.OCAD) {
map = new Map(MapUtil.TextMetricsProvider, new GDIPlus_FileLoader(Path.GetDirectoryName(newFilename)));
mapVersion = InputOutput.ReadFile(newFilename, map);
bitmap = null;
pdfMapFile = null;
}
else if (newMapType == MapType.Bitmap) {
map = null;
mapVersion = new MapFileFormat(MapFileFormatKind.None, 0);
Bitmap bm = (Bitmap)Image.FromFile(newFilename);
bitmap = new GDIPlus_Bitmap(bm);
bitmapDpi = bm.HorizontalResolution;
pdfMapFile = null;
}
else if (newMapType == MapType.PDF) {
string errorText;
map = null;
mapVersion = new MapFileFormat(MapFileFormatKind.None, 0);
Size bitmapSize;
pdfMapFile = MapUtil.ValidatePdf(newFilename, out bitmapDpi, out bitmapSize, out errorText);
if (pdfMapFile == null) {
this.mapType = MapType.None;
bitmap = null;
}
else {
Bitmap bm = (Bitmap)Image.FromFile(pdfMapFile.PngFileName);
bitmap = new GDIPlus_Bitmap(bm);
}
}
else {
Debug.Fail("bad maptype");
}
UpdateDimmedBitmap();
RaiseChanged(null); // redraw everything.
}
