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# Name: buttonpanel.py
# Package: wx.lib.pdfviewer
#
# Purpose: A button panel class for pdf viewer
#
# Author: David Hughes dfh@forestfield.co.uk
# Copyright: Forestfield Software Ltd
# Licence: Same as wxPython host
# History: Created 26 Jun 2009
#
#----------------------------------------------------------------------------
import sys, os, time
import images
import wx
import wx.lib.agw.buttonpanel as bp
class pdfButtonPanel(bp.ButtonPanel):
" Containing panel is completely occupied by a button panel "
def __init__(self, parent, id, pos, size, style):
"Panel for user to select pdf viewer actions"
self.viewer = None # reference to viewer is set by their common parent
self.numpages = None
bp.ButtonPanel.__init__(self, parent, id, "",
agwStyle=bp.BP_USE_GRADIENT, alignment=bp.BP_ALIGN_LEFT)
self.SetProperties()
self.CreateButtons()
def CreateButtons(self):
" Add buttons and controls"
self.pagelabel = wx.StaticText(self, -1, 'Page')
self.page = wx.TextCtrl(self, -1, size=(30, -1), style=wx.TE_CENTRE|wx.TE_PROCESS_ENTER)
self.page.Bind(wx.EVT_KILL_FOCUS, self.OnPage)
self.Bind(wx.EVT_TEXT_ENTER, self.OnPage, self.page)
self.maxlabel = wx.StaticText(self, -1, ' ')
self.zoom = wx.ComboBox(self, -1, style=wx.CB_DROPDOWN|wx.TE_PROCESS_ENTER)
self.comboval = (('Actual size', 1.0), ('Fit width', -1), ('Fit page', -2),
('25%', 0.25), ('50%', 0.5), ('75%', 0.75), ('100%', 1.0),
('125%', 1.25), ('150%', 1.5), ('200%', 2.0), ('400%', 4.0),
('800%', 8.0), ('1000%', 10.0))
for item in self.comboval:
self.zoom.Append(item[0], item[1]) # string value and client data
self.Bind(wx.EVT_COMBOBOX, self.OnZoomSet, self.zoom)
self.Bind(wx.EVT_TEXT_ENTER, self.OnZoomSet, self.zoom)
self.zoom.Bind(wx.EVT_KILL_FOCUS, self.OnZoomSet)
panelitems = [
('btn', images.PrintIt.GetBitmap(), wx.ITEM_NORMAL, "Print", self.OnPrint),
('sep',),
('btn', images.SaveIt.GetBitmap(), wx.ITEM_NORMAL, "Save", self.OnSave),
('sep',),
('btn', images.First.GetBitmap(), wx.ITEM_NORMAL, "First page", self.OnFirst),
('btn', images.Prev.GetBitmap(), wx.ITEM_NORMAL, "Previous page", self.OnPrev),
('btn', images.Next.GetBitmap(), wx.ITEM_NORMAL, "Next page", self.OnNext),
('btn', images.Last.GetBitmap(), wx.ITEM_NORMAL, "Last page", self.OnLast),
('Ctrl', self.pagelabel),
('ctrl', self.page),
('ctrl', self.maxlabel),
('sep',),
('btn', images.ZoomOut.GetBitmap(), wx.ITEM_NORMAL, "Zoom out", self.OnZoomOut),
('btn', images.ZoomIn.GetBitmap(), wx.ITEM_NORMAL, "Zoom in", self.OnZoomIn),
('ctrl', self.zoom),
('btn', images.Width.GetBitmap(), wx.ITEM_NORMAL, "Fit page width", self.OnWidth),
('btn', images.Height.GetBitmap(), wx.ITEM_NORMAL, "Fit page height", self.OnHeight),
]
self.Freeze()
for item in panelitems:
if item[0].lower() == 'btn':
type, image, kind, popup, handler = item
btn = bp.ButtonInfo(self, wx.NewId(),image, kind=kind,
shortHelp=popup, longHelp='')
self.AddButton(btn)
self.Bind(wx.EVT_BUTTON, handler, id=btn.GetId())
elif item[0].lower() == 'sep':
self.AddSeparator()
elif item[0].lower() == 'space':
self.AddSpacer(item[1])
elif item[0].lower() == 'ctrl':
self.AddControl(item[1])
self.Thaw()
self.DoLayout()
def SetProperties(self):
" Setup the buttonpanel colours, borders etc."
bpArt = self.GetBPArt()
bpArt.SetGradientType(bp.BP_GRADIENT_VERTICAL)
bpArt.SetColor(bp.BP_GRADIENT_COLOUR_FROM, wx.Colour(119, 136, 153)) #light slate
bpArt.SetColor(bp.BP_GRADIENT_COLOUR_TO, wx.Colour(245, 245, 245)) # white smoke
bpArt.SetColor(bp.BP_BORDER_COLOUR, wx.Colour(119, 136, 153))
bpArt.SetColor(bp.BP_BUTTONTEXT_COLOUR, wx.Colour(0,0,0)) # not used
bpArt.SetColor(bp.BP_SEPARATOR_COLOUR,
bp.BrightenColour(wx.Colour(60, 11, 112), 0.85))
bpArt.SetColor(bp.BP_SELECTION_BRUSH_COLOUR, wx.Colour(225, 225, 255)) # used?
bpArt.SetColor(bp.BP_SELECTION_PEN_COLOUR,
wx.SystemSettings.GetColour(wx.SYS_COLOUR_ACTIVECAPTION))
def Update(self, pagenum, numpages, zoomscale):
""" Called from viewer to initialize and update controls. In viewer,
page range is 0 to numpages-1. In button controls it is 1 to numpages
"""
self.pageno = pagenum + 1
self.page.SetValue('%d' % self.pageno)
if numpages <> self.numpages:
self.maxlabel.SetLabel('of %d' % numpages)
self.numpages = numpages
self.percentzoom = zoomscale * 100
self.zoom.SetValue('%.0f%%' % self.percentzoom)
self.zoomtext = self.zoom.GetValue() # save last good value
def OnSave(self, event):
"Save PDF"
self.viewer.Save()
def OnPrint(self, event):
"Print PDF"
self.viewer.Print()
def OnFirst(self, event):
" Show first page of report"
if self.pageno > 1:
self.pageno = 1
self.ChangePage()
def OnPrev(self, event):
" Show previous page of report"
if self.pageno > 1:
self.pageno -= 1
self.ChangePage()
def OnNext(self, event):
" Show next page of report"
if self.pageno < self.numpages:
self.pageno += 1
self.ChangePage()
def OnLast(self, event):
" Show last page of report"
if self.pageno < self.numpages:
self.pageno = self.numpages
self.ChangePage()
def OnPage(self,event):
" Go to page if valid page number entered"
try:
newpage = int(self.page.GetValue())
if 1 <= newpage <= self.numpages:
if newpage <> self.pageno:
self.pageno = newpage
self.ChangePage()
except ValueError:
pass
if hasattr(self, 'pageno'):
self.page.SetValue('%d' % self.pageno)
else:
self.page.SetValue('')
def OnZoomOut(self, event):
"Decrease page magnification"
self.viewer.SetZoom(max(0.1, self.percentzoom*0.5/100.0))
def OnZoomIn(self, event):
"Increase page magnification"
self.viewer.SetZoom(min(self.percentzoom*2/100.0, 10))
def OnZoomSet(self, event):
" Process zoom combo-box event. Either a list selection or value entered"
MINZ = 0
MAXZ = 1000
newzoom_scale = None
num = self.zoom.GetSelection()
if num >= 0: # selection from list
newzoom_scale = self.zoom.GetClientData(num)
else: # combo text
astring = self.zoom.GetValue().strip().replace('%','') # ignore percent sign
try:
numvalue = float(astring)
if numvalue < MINZ or numvalue > MAXZ:
numvalue = None
except ValueError:
numvalue = None
if numvalue: # numeric value
newzoom_scale = numvalue/100.0
else: # valid text?
textvalue = self.zoom.GetValue()
for k in range(len(self.comboval)):
if textvalue.lower() == self.comboval[k][0].lower():
newzoom_scale = self.comboval[k][1]
break
if newzoom_scale:
self.viewer.SetZoom(newzoom_scale) # will send update to set zoomtext
else:
self.zoom.SetValue(self.zoomtext) # restore last good value
event.Skip()
def OnWidth(self, event):
"Fit display to page width"
self.viewer.SetZoom(-1)
def OnHeight(self, event):
"Fit display to page height"
self.viewer.SetZoom(-2)
def ChangePage(self):
" Update viewer and self.page control with new page number"
self.page.SetValue('%d' % self.pageno)
self.viewer.GoPage(self.pageno - 1)
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