bitmap.py :  » Windows » pyExcelerator » pywin32-214 » pythonwin » pywin » framework » Python Open Source

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Python Open Source » Windows » pyExcelerator 
pyExcelerator » pywin32 214 » pythonwin » pywin » framework » bitmap.py
import win32ui
import win32con
import win32api
import string
import os
import app
import sys

from pywin.mfc import docview,window

bStretch = 1

class BitmapDocument(docview.Document):
  "A bitmap document.  Holds the bitmap data itself."
  def __init__(self, template):
    docview.Document.__init__(self, template)
    self.bitmap=None
  def OnNewDocument(self):
    # I can not create new bitmaps.
    win32ui.MessageBox("Bitmaps can not be created.")
  def OnOpenDocument(self, filename):
    self.bitmap=win32ui.CreateBitmap()
    # init data members
    f = open(filename, 'rb')
    try:
      try:
        self.bitmap.LoadBitmapFile(f)
      except IOError:
        win32ui.MessageBox("Could not load the bitmap from %s" % filename)
        return 0
    finally:
      f.close()
    self.size = self.bitmap.GetSize()
    return 1
  def DeleteContents(self):
    self.bitmap=None

class BitmapView(docview.ScrollView):
  "A view of a bitmap.  Obtains data from document."
  def __init__(self, doc):
    docview.ScrollView.__init__(self, doc)
    self.width = self.height = 0
    # set up message handlers
    self.HookMessage (self.OnSize, win32con.WM_SIZE)
    
  def OnInitialUpdate(self):
    doc = self.GetDocument()
    if doc.bitmap:
      bitmapSize = doc.bitmap.GetSize()
      self.SetScrollSizes(win32con.MM_TEXT, bitmapSize)

  def OnSize (self, params):
    lParam = params[3]
    self.width = win32api.LOWORD(lParam)
    self.height = win32api.HIWORD(lParam)

  def OnDraw (self, dc):
    # set sizes used for "non stretch" mode.
    doc = self.GetDocument()
    if doc.bitmap is None: return
    bitmapSize = doc.bitmap.GetSize()
    if bStretch:
      # stretch BMP.
      viewRect = (0,0,self.width, self.height)
      bitmapRect = (0,0,bitmapSize[0], bitmapSize[1])
      doc.bitmap.Paint(dc, viewRect, bitmapRect)
    else:
      # non stretch.
      doc.bitmap.Paint(dc)
  
class BitmapFrame(window.MDIChildWnd):
  def OnCreateClient( self, createparams, context ):
    borderX = win32api.GetSystemMetrics(win32con.SM_CXFRAME)
    borderY = win32api.GetSystemMetrics(win32con.SM_CYFRAME)
    titleY = win32api.GetSystemMetrics(win32con.SM_CYCAPTION)  # includes border
    # try and maintain default window pos, else adjust if cant fit
    # get the main client window dimensions.
    mdiClient = win32ui.GetMainFrame().GetWindow(win32con.GW_CHILD)
    clientWindowRect=mdiClient.ScreenToClient(mdiClient.GetWindowRect())
    clientWindowSize=(clientWindowRect[2]-clientWindowRect[0],clientWindowRect[3]-clientWindowRect[1])
    left, top, right, bottom=mdiClient.ScreenToClient(self.GetWindowRect())
#    width, height=context.doc.size[0], context.doc.size[1]
#    width = width+borderX*2
#    height= height+titleY+borderY*2-1
#    if (left+width)>clientWindowSize[0]:
#      left = clientWindowSize[0] - width
#    if left<0:
#      left = 0
#      width = clientWindowSize[0]
#    if (top+height)>clientWindowSize[1]:
#      top = clientWindowSize[1] - height
#    if top<0:
#      top = 0
#      height = clientWindowSize[1]
#    self.frame.MoveWindow((left, top, left+width, top+height),0)
    window.MDIChildWnd.OnCreateClient(self, createparams, context)
    return 1


class BitmapTemplate(docview.DocTemplate):
  def __init__(self):
    docview.DocTemplate.__init__(self, win32ui.IDR_PYTHONTYPE, BitmapDocument, BitmapFrame, BitmapView)
  def MatchDocType(self, fileName, fileType):
    doc = self.FindOpenDocument(fileName)
    if doc: return doc
    ext = os.path.splitext(fileName)[1].lower()
    if ext =='.bmp': # removed due to PIL! or ext=='.ppm':
      return win32ui.CDocTemplate_Confidence_yesAttemptNative
    return win32ui.CDocTemplate_Confidence_maybeAttemptForeign
#    return win32ui.CDocTemplate_Confidence_noAttempt

# For debugging purposes, when this module may be reloaded many times.
try:
  win32ui.GetApp().RemoveDocTemplate(bitmapTemplate)
except NameError:
  pass
  
bitmapTemplate = BitmapTemplate()
bitmapTemplate.SetDocStrings('\nBitmap\nBitmap\nBitmap (*.bmp)\n.bmp\nPythonBitmapFileType\nPython Bitmap File')
win32ui.GetApp().AddDocTemplate(bitmapTemplate)

# This works, but just didnt make it through the code reorg.
#class PPMBitmap(Bitmap):
#  def LoadBitmapFile(self, file ):
#    magic=file.readline()
#    if magic <> "P6\n":
#      raise TypeError, "The file is not a PPM format file"
#    rowcollist=string.split(file.readline())
#    cols=string.atoi(rowcollist[0])
#    rows=string.atoi(rowcollist[1])
#    file.readline()  # whats this one?
#    self.bitmap.LoadPPMFile(file,(cols,rows))


def t():
  bitmapTemplate.OpenDocumentFile('d:\\winnt\\arcade.bmp')
  #OpenBMPFile( 'd:\\winnt\\arcade.bmp')

def demo():
  import glob
  winDir=win32api.GetWindowsDirectory()
  for fileName in glob.glob1(winDir, '*.bmp')[:2]:
    bitmapTemplate.OpenDocumentFile(os.path.join(winDir, fileName))
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