bitmaps

diff --git a/client/bmp.py b/client/bmp.py
new file mode 100644 (file)
index 0000000..bfdd165
--- /dev/null
+++ b/client/bmp.py
@@ -0,0 +1,206 @@
+# -*- coding: utf-8 -*-\r
+"""\r
+bmp.py - module for constructing simple BMP graphics files\r
+\r
+ Permission is hereby granted, free of charge, to any person obtaining\r
+ a copy of this software and associated documentation files (the\r
+ "Software"), to deal in the Software without restriction, including\r
+ without limitation the rights to use, copy, modify, merge, publish,\r
+ distribute, sublicense, and/or sell copies of the Software, and to\r
+ permit persons to whom the Software is furnished to do so, subject to\r
+ the following conditions:\r
+\r
+ The above copyright notice and this permission notice shall be\r
+ included in all copies or substantial portions of the Software.\r
+\r
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,\r
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\r
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.\r
+ IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY\r
+ CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,\r
+ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE\r
+ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
+\r
+"""\r
+__version__ = "0.3"\r
+__about =  "bmp module, version %s, written by Paul McGuire, October, 2003, updated by Margus Laak, September, 2009" % __version__ \r
+\r
+from math import ceil, hypot\r
+\r
+\r
+def shortToString(i):\r
+  hi = (i & 0xff00) >> 8\r
+  lo = i & 0x00ff\r
+  return chr(lo) + chr(hi)\r
+\r
+def longToString(i):\r
+  hi = (long(i) & 0x7fff0000) >> 16\r
+  lo = long(i) & 0x0000ffff\r
+  return shortToString(lo) + shortToString(hi)\r
+\r
+def long24ToString(i):\r
+  return chr(i & 0xff) + chr(i >> 8 & 0xff) + chr(i >> 16 & 0xff)\r
+\r
+def stringToLong(input_string, offset):\r
+  return ord(input_string[offset+3]) << 24 | ord(input_string[offset+2]) << 16 | ord(input_string[offset+1]) << 8 | ord(input_string[offset])\r
+\r
+def stringToLong24(input_string, offset):\r
+  return ord(input_string[offset+2]) << 16 | ord(input_string[offset+1]) << 8 | ord(input_string[offset])\r
+\r
+class Color(object):\r
+  """class for specifying colors while drawing BitMap elements"""\r
+  __slots__ = [ 'red', 'grn', 'blu' ]\r
+  __shade = 32\r
+  \r
+  def __init__( self, r=0, g=0, b=0 ):\r
+    self.red = r\r
+    self.grn = g\r
+    self.blu = b\r
+\r
+  def __setattr__(self, name, value):\r
+    if hasattr(self, name):\r
+      raise AttributeError, "Color is immutable"\r
+    else:\r
+      object.__setattr__(self, name, value)\r
+\r
+  def __str__( self ):\r
+    return "R:%d G:%d B:%d" % (self.red, self.grn, self.blu )\r
+    \r
+  def __hash__( self ):\r
+    return ( ( long(self.blu) ) + \r
+              ( long(self.grn) <<  8 ) + \r
+              ( long(self.red) << 16 ) )\r
+  \r
+  def __eq__( self, other ):\r
+    return (self is other) or (self.toLong == other.toLong)\r
+\r
+  def lighten( self ):\r
+    return Color( \r
+      min( self.red + Color.__shade, 255), \r
+      min( self.grn + Color.__shade, 255), \r
+      min( self.blu + Color.__shade, 255)  \r
+      )\r
+  \r
+  def darken( self ):\r
+    return Color( \r
+      max( self.red - Color.__shade, 0), \r
+      max( self.grn - Color.__shade, 0), \r
+      max( self.blu - Color.__shade, 0)  \r
+      )\r
+       \r
+  def toLong( self ):\r
+    return self.__hash__()\r
+    \r
+  def fromLong( l ):\r
+    b = l & 0xff\r
+    l = l >> 8\r
+    g = l & 0xff\r
+    l = l >> 8\r
+    r = l & 0xff\r
+    return Color( r, g, b )\r
+  fromLong = staticmethod(fromLong)\r
+\r
+# define class constants for common colors\r
+Color.BLACK    = Color(   0,   0,   0 )\r
+Color.RED      = Color( 255,   0,   0 )\r
+Color.GREEN    = Color(   0, 255,   0 )\r
+Color.BLUE     = Color(   0,   0, 255 )\r
+Color.CYAN     = Color(   0, 255, 255 )\r
+Color.MAGENTA  = Color( 255,   0, 255 )\r
+Color.YELLOW   = Color( 255, 255,   0 )\r
+Color.WHITE    = Color( 255, 255, 255 )\r
+Color.DKRED    = Color( 128,   0,   0 )\r
+Color.DKGREEN  = Color(   0, 128,   0 )\r
+Color.DKBLUE   = Color(   0,   0, 128 )\r
+Color.TEAL     = Color(   0, 128, 128 )\r
+Color.PURPLE   = Color( 128,   0, 128 )\r
+Color.BROWN    = Color( 128, 128,   0 )\r
+Color.GRAY     = Color( 128, 128, 128 )\r
+\r
+\r
+class BitMap(object):\r
+  """class for drawing and saving simple Windows bitmap files"""\r
+  \r
+  LINE_SOLID  = 0\r
+  LINE_DASHED = 1\r
+  LINE_DOTTED = 2\r
+  LINE_DOT_DASH=3\r
+  _DASH_LEN = 12.0\r
+  _DOT_LEN = 6.0\r
+  _DOT_DASH_LEN = _DOT_LEN + _DASH_LEN\r
+  \r
+  def __init__( self, width, height, \r
+                 bkgd = Color.WHITE, frgd = Color.BLACK ):\r
+    self.wd = int( ceil(width) )\r
+    self.ht = int( ceil(height) )\r
+    self.bgcolor = 0\r
+    self.fgcolor = 1\r
+    self.palette = []\r
+    self.palette.append( bkgd.toLong() )\r
+    self.palette.append( frgd.toLong() )\r
+    self.currentPen = self.fgcolor\r
+\r
+    tmparray = [ self.bgcolor ] * self.wd\r
+    self.bitarray = [ tmparray[:] for i in range( self.ht ) ]\r
+    self.currentPen = 1\r
+    \r
+\r
+  def plotPoint( self, x, y ):\r
+    if ( 0 <= x < self.wd and 0 <= y < self.ht ):\r
+      x = int(x)\r
+      y = int(y)\r
+      self.bitarray[y][x] = self.currentPen\r
+      \r
+\r
+  def _saveBitMapNoCompression( self ):\r
+    line_padding = (4 - (self.wd % 4)) % 4\r
+    \r
+    # write bitmap header\r
+    _bitmap = "BM"\r
+    _bitmap += longToString( 54 + self.ht*(self.wd*3 + line_padding) )   # DWORD size in bytes of the file\r
+    _bitmap += longToString( 0 )    # DWORD 0\r
+    _bitmap += longToString( 54  )\r
+    _bitmap += longToString( 40 )    # DWORD header size = 40\r
+    _bitmap += longToString( self.wd )    # DWORD image width\r
+    _bitmap += longToString( self.ht )    # DWORD image height\r
+    _bitmap += shortToString( 1 )    # WORD planes = 1\r
+    _bitmap += shortToString( 24 )    # WORD bits per pixel = 8\r
+    _bitmap += longToString( 0 )    # DWORD compression = 0\r
+    _bitmap += longToString( self.ht * (self.wd * 3 + line_padding) )    # DWORD sizeimage = size in bytes of the bitmap = width * height\r
+    _bitmap += longToString( 0 )    # DWORD horiz pixels per meter (?)\r
+    _bitmap += longToString( 0 )    # DWORD ver pixels per meter (?)\r
+    _bitmap += longToString( 0 )    # DWORD number of colors used = 256\r
+    _bitmap += longToString( 0 )    # DWORD number of "import colors = len( self.palette )\r
+\r
+    # write pixels\r
+    self.bitarray.reverse()\r
+    for row in self.bitarray:\r
+      for pixel in row:\r
+        c = self.palette[pixel]\r
+        _bitmap += long24ToString(c)\r
+      for i in range(line_padding):\r
+        _bitmap += chr( 0 )\r
+\r
+    return _bitmap\r
+\r
+    \r
+    \r
+  def saveFile( self, filename):\r
+    _b = self._saveBitMapNoCompression( )\r
+    \r
+    f = file(filename, 'wb')\r
+    f.write(_b)\r
+    f.close()\r
+  \r
+\r
+\r
+\r
+  \r
+    \r
+if __name__ == "__main__":\r
+  \r
+  bmp = BitMap( 10, 10 )\r
+  bmp.plotPoint( 5, 5 )\r
+  bmp.plotPoint( 0, 0 )\r
+  bmp.saveFile( "test.bmp" )\r
+\r

diff --git a/client/electrum_text_320.png b/client/electrum_text_320.png
new file mode 100644 (file)
index 0000000..dc6f086
Binary files /dev/null and b/client/electrum_text_320.png differ