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"""!
@package mapdisp.gprint
@brief Print context and utility functions for printing
contents of map display window.
Classes:
- gprint::MapPrint
- gprint::PrintOptions
(C) 2007-2011 by the GRASS Development Team
This program is free software under the GNU General Public License
(>=v2). Read the file COPYING that comes with GRASS for details.
@author Michael Barton (Arizona State University)
"""
import wx
from core.gcmd import GMessage
class MapPrint(wx.Printout):
def __init__(self, canvas):
wx.Printout.__init__(self)
self.canvas = canvas
def OnBeginDocument(self, start, end):
return super(MapPrint, self).OnBeginDocument(start, end)
def OnEndDocument(self):
super(MapPrint, self).OnEndDocument()
def OnBeginPrinting(self):
super(MapPrint, self).OnBeginPrinting()
def OnEndPrinting(self):
super(MapPrint, self).OnEndPrinting()
def OnPreparePrinting(self):
super(MapPrint, self).OnPreparePrinting()
def HasPage(self, page):
if page <= 2:
return True
else:
return False
def GetPageInfo(self):
return (1, 2, 1, 2)
def OnPrintPage(self, page):
dc = self.GetDC()
#-------------------------------------------
# One possible method of setting scaling factors...
maxX, maxY = self.canvas.GetSize()
# Let's have at least 50 device units margin
marginX = 10
marginY = 10
# Add the margin to the graphic size
maxX = maxX + (2 * marginX)
maxY = maxY + (2 * marginY)
# Get the size of the DC in pixels
(w, h) = dc.GetSizeTuple()
# Calculate a suitable scaling factor
scaleX = float(w) / maxX
scaleY = float(h) / maxY
# Use x or y scaling factor, whichever fits on the DC
actualScale = min(scaleX, scaleY)
# Calculate the position on the DC for centering the graphic
posX = (w - (self.canvas.GetSize()[0] * actualScale)) / 2.0
posY = (h - (self.canvas.GetSize()[1] * actualScale)) / 2.0
# Set the scale and origin
dc.SetUserScale(actualScale, actualScale)
dc.SetDeviceOrigin(int(posX), int(posY))
#-------------------------------------------
self.canvas.pdc.DrawToDC(dc)
# prints a page number on the page
# dc.DrawText("Page: %d" % page, marginX/2, maxY-marginY)
return True
class PrintOptions:
def __init__(self, parent, mapwin):
self.mapframe = parent
self.mapwin = mapwin
#self.frame = frame
self.printData = None
#self.canvas = ScrolledWindow.MyCanvas(self)
def setup(self):
if self.printData:
return
self.printData = wx.PrintData()
self.printData.SetPaperId(wx.PAPER_LETTER)
self.printData.SetPrintMode(wx.PRINT_MODE_PRINTER)
def OnPageSetup(self, event):
self.setup()
psdd = wx.PageSetupDialogData(self.printData)
psdd.CalculatePaperSizeFromId()
dlg = wx.PageSetupDialog(self.mapwin, psdd)
dlg.ShowModal()
# this makes a copy of the wx.PrintData instead of just saving
# a reference to the one inside the PrintDialogData that will
# be destroyed when the dialog is destroyed
self.printData = wx.PrintData( dlg.GetPageSetupData().GetPrintData() )
dlg.Destroy()
def OnPrintPreview(self, event):
self.setup()
data = wx.PrintDialogData(self.printData)
printout = MapPrint(self.mapwin)
printout2 = MapPrint(self.mapwin)
self.preview = wx.PrintPreview(printout, printout2, data)
if not self.preview.Ok():
wx.MessageBox("There was a problem printing this display\n", wx.OK)
return
pfrm = wx.PreviewFrame(self.preview, self.mapframe, "Print preview")
pfrm.Initialize()
pfrm.SetPosition(self.mapframe.GetPosition())
pfrm.SetSize(self.mapframe.GetClientSize())
pfrm.Show(True)
def OnDoPrint(self, event):
self.setup()
pdd = wx.PrintDialogData(self.printData)
# set number of pages/copies
pdd.SetToPage(1)
printer = wx.Printer(pdd)
printout = MapPrint(self.mapwin)
if not printer.Print(self.mapframe, printout, True):
wx.MessageBox("There was a problem printing.\nPerhaps your current printer is not set correctly?", "Printing", wx.OK)
else:
self.printData = wx.PrintData( printer.GetPrintDialogData().GetPrintData() )
printout.Destroy()
class MapPrint(wx.Printout):
def __init__(self, canvas):
wx.Printout.__init__(self)
self.canvas = canvas
def OnBeginDocument(self, start, end):
return super(MapPrint, self).OnBeginDocument(start, end)
def OnEndDocument(self):
super(MapPrint, self).OnEndDocument()
def OnBeginPrinting(self):
super(MapPrint, self).OnBeginPrinting()
def OnEndPrinting(self):
super(MapPrint, self).OnEndPrinting()
def OnPreparePrinting(self):
super(MapPrint, self).OnPreparePrinting()
def HasPage(self, page):
if page <= 2:
return True
else:
return False
def GetPageInfo(self):
return (1, 2, 1, 2)
def OnPrintPage(self, page):
dc = self.GetDC()
#-------------------------------------------
# One possible method of setting scaling factors...
maxX, maxY = self.canvas.GetSize()
# Let's have at least 50 device units margin
marginX = 10
marginY = 10
# Add the margin to the graphic size
maxX = maxX + (2 * marginX)
maxY = maxY + (2 * marginY)
# Get the size of the DC in pixels
(w, h) = dc.GetSizeTuple()
# Calculate a suitable scaling factor
scaleX = float(w) / maxX
scaleY = float(h) / maxY
# Use x or y scaling factor, whichever fits on the DC
actualScale = min(scaleX, scaleY)
# Calculate the position on the DC for centering the graphic
posX = (w - (self.canvas.GetSize()[0] * actualScale)) / 2.0
posY = (h - (self.canvas.GetSize()[1] * actualScale)) / 2.0
# Set the scale and origin
dc.SetUserScale(actualScale, actualScale)
dc.SetDeviceOrigin(int(posX), int(posY))
#-------------------------------------------
self.canvas.pdc.DrawToDC(dc)
# prints a page number on the page
# dc.DrawText("Page: %d" % page, marginX/2, maxY-marginY)
return True
class PrintOptions(wx.Object):
def __init__(self, parent, mapwin):
self.mapframe = parent
self.mapwin = mapwin
#self.frame = frame
self.printData = None
#self.canvas = ScrolledWindow.MyCanvas(self)
def setup(self):
if self.printData:
return
self.printData = wx.PrintData()
self.printData.SetPaperId(wx.PAPER_LETTER)
self.printData.SetPrintMode(wx.PRINT_MODE_PRINTER)
def OnPageSetup(self, event):
self.setup()
psdd = wx.PageSetupDialogData(self.printData)
psdd.CalculatePaperSizeFromId()
dlg = wx.PageSetupDialog(self.mapwin, psdd)
dlg.ShowModal()
# this makes a copy of the wx.PrintData instead of just saving
# a reference to the one inside the PrintDialogData that will
# be destroyed when the dialog is destroyed
self.printData = wx.PrintData( dlg.GetPageSetupData().GetPrintData() )
dlg.Destroy()
def OnPrintPreview(self, event):
self.setup()
data = wx.PrintDialogData(self.printData)
printout = MapPrint(self.mapwin)
printout2 = MapPrint(self.mapwin)
self.preview = wx.PrintPreview(printout, printout2, data)
if not self.preview.Ok():
wx.MessageBox("There was a problem printing this display\n", wx.OK)
return
pfrm = wx.PreviewFrame(self.preview, self.mapframe, "Print preview")
pfrm.Initialize()
pfrm.SetPosition(self.mapframe.GetPosition())
pfrm.SetSize(self.mapframe.GetClientSize())
pfrm.Show(True)
def OnDoPrint(self, event):
self.setup()
pdd = wx.PrintDialogData(self.printData)
# set number of pages/copies
pdd.SetToPage(1)
printer = wx.Printer(pdd)
printout = MapPrint(self.mapwin)
if not printer.Print(self.mapframe, printout, True):
GMessage(_("There was a problem printing.\n"
"Perhaps your current printer is not set correctly?"))
else:
self.printData = wx.PrintData( printer.GetPrintDialogData().GetPrintData() )
printout.Destroy()
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