protected static nfloat GetWidthForString(NSFont font, string text, int sizeDelta = 0)
{
NSFont modified = null;
nfloat width;
if (sizeDelta != 0)
{
modified = NSFont.FromDescription(font.FontDescriptor, font.PointSize + sizeDelta);
}
using (var str = new NSAttributedString(text, font: modified ?? font))
width = str.Size.Width;
modified?.Dispose();
width = NMath.Ceiling(width);
// Note: All code-paths that use sizeDelta == 0 are for NSTextField labels and the only code-path
// that uses sizeDelta != 0 is for the Show More label in an NSButton.
if (sizeDelta == 0)
{
// Note: In order to match NSTextField.Frame.Width after calling TextField.SizeToFit(), add 4px.
width += 4;
// Note: NSTextField also seems to need an extra 8px to actually fit the entire text w/o clipping.
width += 8;
}
else
{
// Oddly enough, NSButton padding around the label is also +12px (matched after button.SizeToFit()
// and checking the resulting button.Frame.Width).
width += 12;
}
return(width);
}
public void Dispose()
{
font.Dispose();
}
// WHAT IS THE DEFAULT FONT FOR ANDROID?
#endif
// Partial class implementation of draw() in c# to allow use of unsafe code..
public unsafe void draw(IBitmapDrawable source, flash.geom.Matrix matrix = null, ColorTransform colorTransform = null, string blendMode = null,
Rectangle clipRect = null, Boolean smoothing = false)
{
#if PLATFORM_MONOMAC || PLATFORM_MONOTOUCH
if (source is flash.text.TextField)
{
flash.text.TextField tf = source as flash.text.TextField;
flash.text.TextFormat format = tf.defaultTextFormat;
// $$TODO figure out how to get rid of this extra data copy
var sizeToDraw = (width * height) << 2;
if (sizeToDraw == 0)
{
return;
}
string fontName = format.font;
float fontSize = (format.size is double) ? (float)(double)format.size : ((format.size is int) ? (float)(int)format.size : 10);
// Check if the font is installed?
bool hasFont = true;
if (!sHasFont.TryGetValue(fontName, out hasFont))
{
#if PLATFORM_MONOTOUCH
UIFont font = UIFont.FromName(fontName, 10);
sHasFont[fontName] = hasFont = font != null;
if (font != null)
{
font.Dispose();
}
#elif PLATFORM_MONOMAC
NSFont font = NSFont.FromFontName(fontName, 10);
sHasFont[fontName] = hasFont = font != null;
if (font != null)
{
font.Dispose();
}
#else
sHasFont[fontName] = false;
#endif
}
if (!hasFont)
{
fontName = DEFAULT_FONT;
}
fixed(uint *data = mData)
{
using (CGBitmapContext context = new CGBitmapContext(new IntPtr(data), width, height, 8, 4 * width,
CGColorSpace.CreateDeviceRGB(),
CGImageAlphaInfo.PremultipliedLast))
{
uint tfColor = format.color != null ? (uint)(format.color) : 0;
float r = (float)((tfColor >> 16) & 0xFF) / 255.0f;
float g = (float)((tfColor >> 8) & 0xFF) / 255.0f;
float b = (float)((tfColor >> 0) & 0xFF) / 255.0f;
float a = (float)(tf.alpha);
CGColor color = new CGColor(r, g, b, a);
context.SetFillColor(color);
context.SetStrokeColor(color);
context.SelectFont(fontName, fontSize, CGTextEncoding.MacRoman);
context.SetAllowsAntialiasing(((tf.antiAliasType as string) == flash.text.AntiAliasType.ADVANCED));
double x = matrix.tx;
double y = matrix.ty;
// invert y because the CG origin is bottom,left
y = height - tf.textHeight - y;
// align text
switch (format.align)
{
case TextFormatAlign.LEFT:
// no adjustment required
break;
case TextFormatAlign.CENTER:
// center x
x += width / 2;
x -= tf.textWidth / 2;
break;
case TextFormatAlign.RIGHT:
// right justify x
x += width;
x -= tf.textWidth;
break;
default:
throw new System.NotImplementedException();
}
// draw text
context.ShowTextAtPoint((float)x, (float)y, tf.text);
}
}
}
else
#elif PLATFORM_MONODROID
if (source is flash.text.TextField)
{
flash.text.TextField tf = source as flash.text.TextField;
flash.text.TextFormat format = tf.defaultTextFormat;
// $$TODO figure out how to get rid of this extra data copy
var data = new byte[width * height * 4];
System.Buffer.BlockCopy(mData, 0, data, 0, data.Length);
Android.Graphics.Bitmap.Config config = Android.Graphics.Bitmap.Config.Argb8888;
Android.Graphics.Bitmap bitmap = Android.Graphics.Bitmap.CreateBitmap(width, height, config);
Canvas canvas = new Canvas(bitmap);
var x = matrix.tx;
var y = matrix.ty;
// invert y because the CG origin is bottom,left
// y = height - tf.textHeight - y;
// align text
switch (format.align)
{
case TextFormatAlign.LEFT:
// no adjustment required
break;
case TextFormatAlign.CENTER:
// center x
x += width / 2;
x -= tf.textWidth / 2;
break;
case TextFormatAlign.RIGHT:
// right justify x
x += width;
x -= tf.textWidth;
break;
default:
throw new System.NotImplementedException();
}
Paint paint = new Paint(PaintFlags.AntiAlias);
paint.Color = Color.Black;
paint.TextSize = (float)format.size;
paint.SetTypeface(Typeface.Create(format.font, TypefaceStyle.Normal));
paint.TextAlign = Paint.Align.Center;
canvas.DrawText(tf.text, (float)x, (float)y, paint);
mData = new uint[bitmap.Width * bitmap.Height];
var buffer = new int[bitmap.Width * bitmap.Height];
bitmap.GetPixels(buffer, 0, width, 0, 0, width, height);
for (int i = 0; i < buffer.Length; i++)
{
mData[i] = (uint)buffer[i];
}
}
else
#endif
if (source is flash.display.BitmapData)
{
//naive implementation ,
//to be implemented:
// -smoothing / antialiasing,
// -blend mode
// -colorTransform
// -cliprect
BitmapData sourceBitmap = source as BitmapData;
flash.geom.Matrix matInverse = (matrix != null) ? matrix.clone() : new flash.geom.Matrix();
matInverse.invert();
for (int y = 0; y < mHeight; y++)
{
for (int x = 0; x < mWidth; x++)
{
int x2 = (int)(x * matInverse.a + y * matInverse.c + matInverse.tx);
int y2 = (int)(x * matInverse.b + y * matInverse.d + matInverse.ty);
if (x2 >= 0 && y2 >= 0 && x2 < sourceBitmap.width && y2 < sourceBitmap.height)
{
mData[x + y * mWidth] = sourceBitmap.mData[x2 + y2 * sourceBitmap.mWidth];
}
}
}
}
else
{
_root.trace_fn.trace("NotImplementedWarning: BitmapData.draw()");
}
}