r6056 - trunk/gnue-forms/src/uidrivers/win32

[btami]

Author: btami
Date: 2004-07-23 11:14:48 -0500 (Fri, 23 Jul 2004)
New Revision: 6056

Added:
   trunk/gnue-forms/src/uidrivers/win32/PrintForm.py
Log:
implemented native win32 PrintForm

Added: trunk/gnue-forms/src/uidrivers/win32/PrintForm.py
===================================================================
--- trunk/gnue-forms/src/uidrivers/win32/PrintForm.py   2004-07-23 15:39:43 UTC 
(rev 6055)
+++ trunk/gnue-forms/src/uidrivers/win32/PrintForm.py   2004-07-23 16:14:48 UTC 
(rev 6056)
@@ -0,0 +1,104 @@
+#
+# This file is part of GNU Enterprise.
+#
+# GNU Enterprise is free software; you can redistribute it
+# and/or modify it under the terms of the GNU General Public
+# License as published by the Free Software Foundation; either
+# version 2, or (at your option) any later version.
+#
+# GNU Enterprise is distributed in the hope that it will be
+# useful, but WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+# PURPOSE. See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public
+# License along with program; see the file COPYING. If not,
+# write to the Free Software Foundation, Inc., 59 Temple Place
+# - Suite 330, Boston, MA 02111-1307, USA.
+#
+# Copyright 2001-2004 Free Software Foundation
+#
+# FILE:
+# PrintForm.py
+#
+# DESCRIPTION:
+# Handles the default "Print" option for the win32 client
+#
+
+__all__ = ['printForm']
+
+import win32ui
+import win32gui
+import win32con
+import win32print
+
+from PIL import Image, ImageWin, ImageGrab
+
+import time
+from gnue.forms import VERSION
+
+# Constants for GetDeviceCaps
+HORZRES = 8
+VERTRES = 10
+
+
+def printForm(form, driver):
+  print 'PrintForm start...'
+  # Get a suitable title for the print job
+  # We default to either "Form Name" or "Form Name" + "Page Name"
+  # depending on if the page has a caption or not.
+  subtitle = ""
+  try:
+    title = form.title
+  except AttributeError:
+    title = 'Untitled Form'
+  try:
+    if form._currentPage.caption:
+      subtitle = ' (' + form._currentPage.caption + ')'
+  except AttributeError:
+    pass
+
+  window = driver._gfObjToUIWidget[form].mainWindow
+  l,t,r,b = win32gui.GetWindowRect(window.GetHwnd())
+  image = ImageGrab.grab((l+2, t+2, r-2, b-2))
+  image.save("tmp.bmp")
+
+  # Open the bitmap
+  bmp = Image.open ("tmp.bmp")
+  print "original bitmap size =", bmp.size
+
+
+  printer = win32print.GetDefaultPrinter()
+  print printer
+  phandle = win32print.OpenPrinter(printer)
+
+  # Find the printer resolution to scale to
+  hDC = win32ui.CreateDC ()
+  hDC.CreatePrinterDC () # can optionally put a printer name in here
+  printer_resolution = hDC.GetDeviceCaps (HORZRES), hDC.GetDeviceCaps (VERTRES)
+  print "printer resolution =", printer_resolution
+
+  # Resize the image to fit the page but not to overflow
+  ratios = [printer_resolution[0] / bmp.size[0], printer_resolution[1] / 
bmp.size[1]]
+  print "ratios =", ratios
+  scale = min (ratios)
+  print "scale =", scale
+
+  # Create the printer document and send the page
+  hDC.StartDoc ("GNUe PrintForm")
+  hDC.StartPage ()
+
+  dib = ImageWin.Dib (bmp)
+  scaled_size = [scale * i for i in bmp.size]
+  print "scaled bitmap size =", scaled_size
+  dib.draw (hDC.GetHandleOutput (), [0, 0] + scaled_size)
+
+  hDC.EndPage ()
+  hDC.EndDoc ()
+
+  win32print.ClosePrinter(phandle)
+  del hDC
+  del bmp
+  os.remove("tmp.bmp")
+
+  print 'PrintForm end.'