/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/view.py
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revision 2699 by russell, Wed Apr 13 16:08:33 2005 UTC revision 2700 by dpinte, Mon Sep 18 14:27:02 2006 UTC
# Line 1  Line 1 
1  # Copyright (c) 2001, 2002, 2003, 2004 by Intevation GmbH  # opyright (c) 2001, 2002, 2003, 2004 by Intevation GmbH
2  # Authors:  # Authors:
3  # Bernhard Herzog <[email protected]>  # Bernhard Herzog <[email protected]>
4  # Frank Koormann <[email protected]>  # Frank Koormann <[email protected]>
# Line 20  import os.path Line 20  import os.path
20  import time  import time
21  import traceback  import traceback
22    
23  from wxPython.wx import wxWindow, \  import wx
      wxPaintDC, wxColour, wxClientDC, wxINVERT, wxTRANSPARENT_BRUSH, wxFont,\  
      EVT_PAINT, EVT_LEFT_DOWN, EVT_LEFT_UP, EVT_MOTION, EVT_LEAVE_WINDOW, \  
      wxPlatform, wxBeginBusyCursor, wxEndBusyCursor, wxFileDialog, wxSAVE, \  
      EVT_MIDDLE_DOWN, EVT_MIDDLE_UP, \  
      wxOVERWRITE_PROMPT, wxID_OK  
24    
25  # Export related stuff  # Export related stuff
26  if wxPlatform == '__WXMSW__':  if wx.Platform == '__WXMSW__':
27      from wxPython.wx import wxMetaFileDC      from wx import MetaFileDC
   
 from wxPython import wx  
28    
29  from Thuban import _  from Thuban import _
30    
# Line 55  class CanvasPanTool(PanTool): Line 48  class CanvasPanTool(PanTool):
48              x, y = self.current              x, y = self.current
49              width, height = self.view.GetSizeTuple()              width, height = self.view.GetSizeTuple()
50    
51              bitmapdc = wx.wxMemoryDC()              bitmapdc = wx.MemoryDC()
52              bitmapdc.SelectObject(self.view.PreviewBitmap())              bitmapdc.SelectObject(self.view.PreviewBitmap())
53    
54              dc = self.view.drag_dc              dc = self.view.drag_dc
55              dc.Blit(0, 0, width, height, bitmapdc, sx - x, sy - y)              dc.Blit(0, 0, width, height, bitmapdc, sx - x, sy - y)
56    
57  class MapPrintout(wx.wxPrintout):  class MapPrintout(wx.Printout):
58    
59      """      """
60      wxPrintout class for printing Thuban maps      wxPrintout class for printing Thuban maps
61      """      """
62    
63      def __init__(self, canvas, map, region, selected_layer, selected_shapes):      def __init__(self, canvas, map, region, selected_layer, selected_shapes):
64          wx.wxPrintout.__init__(self)          wx.Printout.__init__(self)
65          self.canvas = canvas          self.canvas = canvas
66          self.map = map          self.map = map
67          self.region = region          self.region = region
# Line 104  class MapPrintout(wx.wxPrintout): Line 97  class MapPrintout(wx.wxPrintout):
97          return True          return True
98    
99    
100  class MapCanvas(wxWindow, ViewPort):  class MapCanvas(wx.Window, ViewPort):
101    
102      """A widget that displays a map and offers some interaction"""      """A widget that displays a map and offers some interaction"""
103    
104      def __init__(self, parent, winid):      def __init__(self, parent, winid):
105          wxWindow.__init__(self, parent, winid)          wx.Window.__init__(self, parent, winid)
106          ViewPort.__init__(self)          ViewPort.__init__(self)
107    
108          self.SetBackgroundColour(wxColour(255, 255, 255))          self.SetBackgroundColour(wx.Colour(255, 255, 255))
109    
110          # the bitmap serving as backing store          # the bitmap serving as backing store
111          self.bitmap = None          self.bitmap = None
112          # the monochrome bitmap with the selection if any          # the monochrome bitmap with the selection if any
113          self.selection_bitmap = None          self.selection_bitmap = None
114    
115          self.backgroundColor = wx.wxWHITE_BRUSH          self.backgroundColor = wx.WHITE_BRUSH
116    
117          # The rendering iterator object. Used when rendering          # The rendering iterator object. Used when rendering
118          # incrementally          # incrementally
119          self.render_iter = None          self.render_iter = None
120    
121          # subscribe the WX events we're interested in          # subscribe the WX events we're interested in
122          EVT_PAINT(self, self.OnPaint)          self.Bind(wx.EVT_PAINT, self.OnPaint)
123          EVT_LEFT_DOWN(self, self.OnLeftDown)          self.Bind(wx.EVT_LEFT_DOWN, self.OnLeftDown)
124          EVT_LEFT_UP(self, self.OnLeftUp)          self.Bind(wx.EVT_LEFT_UP, self.OnLeftUp)
125          EVT_MIDDLE_DOWN(self, self.OnMiddleDown)          self.Bind(wx.EVT_MIDDLE_DOWN, self.OnMiddleDown)
126          EVT_MIDDLE_UP(self, self.OnMiddleUp)          self.Bind(wx.EVT_MIDDLE_UP, self.OnMiddleUp)
127          EVT_MOTION(self, self.OnMotion)          self.Bind(wx.EVT_MOTION, self.OnMotion)
128          EVT_LEAVE_WINDOW(self, self.OnLeaveWindow)          self.Bind(wx.EVT_LEAVE_WINDOW, self.OnLeaveWindow)
129          wx.EVT_SIZE(self, self.OnSize)          self.Bind(wx.EVT_SIZE, self.OnSize)
130          wx.EVT_IDLE(self, self.OnIdle)          self.Bind(wx.EVT_IDLE, self.OnIdle)
131    
132      def __del__(self):      def __del__(self):
133          wxWindow.__del__(self)          wx.Window.__del__(self)
134          ViewPort.__del__(self)          ViewPort.__del__(self)
135    
136      def PreviewBitmap(self):      def PreviewBitmap(self):
# Line 146  class MapCanvas(wxWindow, ViewPort): Line 139  class MapCanvas(wxWindow, ViewPort):
139      def PanTool(self):      def PanTool(self):
140          """Start the canvas pan tool"""          """Start the canvas pan tool"""
141          self.SelectTool(CanvasPanTool(self))          self.SelectTool(CanvasPanTool(self))
142            
143      def SetMap(self, map):      def SetMap(self, map):
144          redraw_channels = (MAP_LAYERS_CHANGED, LAYER_CHANGED,          redraw_channels = (MAP_LAYERS_CHANGED, LAYER_CHANGED,
145                             LAYER_VISIBILITY_CHANGED)                             LAYER_VISIBILITY_CHANGED)
# Line 166  class MapCanvas(wxWindow, ViewPort): Line 159  class MapCanvas(wxWindow, ViewPort):
159          self.full_redraw()          self.full_redraw()
160    
161      def OnPaint(self, event):      def OnPaint(self, event):
162          dc = wxPaintDC(self)          dc = wx.PaintDC(self)
163          if self.Map() is not None and self.Map().HasLayers():          if self.Map() is not None and self.Map().HasLayers():
164              if self.bitmap is not None:              if self.bitmap is not None:
165                  dc.BeginDrawing()                  dc.BeginDrawing()
# Line 213  class MapCanvas(wxWindow, ViewPort): Line 206  class MapCanvas(wxWindow, ViewPort):
206                      # the current tool is drawing on the window.                      # the current tool is drawing on the window.
207                      if not self.dragging \                      if not self.dragging \
208                             and time.time() - self.render_last_preview > 0.5:                             and time.time() - self.render_last_preview > 0.5:
209                          client_dc = wxClientDC(self)                          client_dc = wx.ClientDC(self)
210                          client_dc.BeginDrawing()                          client_dc.BeginDrawing()
211                          client_dc.DrawBitmap(self.bitmap, 0, 0)                          client_dc.DrawBitmap(self.bitmap, 0, 0)
212                          client_dc.EndDrawing()                          client_dc.EndDrawing()
# Line 240  class MapCanvas(wxWindow, ViewPort): Line 233  class MapCanvas(wxWindow, ViewPort):
233    
234      def _render_iterator(self):      def _render_iterator(self):
235          width, height = self.GetSizeTuple()          width, height = self.GetSizeTuple()
236          dc = wx.wxMemoryDC()          dc = wx.MemoryDC()
237    
238          render_start = time.time()          render_start = time.time()
239    
240          if self.bitmap is None:          if self.bitmap is None:
241              self.bitmap = wx.wxEmptyBitmap(width, height)              self.bitmap = wx.EmptyBitmap(width, height)
242              dc.SelectObject(self.bitmap)              dc.SelectObject(self.bitmap)
243              dc.BeginDrawing()              dc.BeginDrawing()
244    
# Line 259  class MapCanvas(wxWindow, ViewPort): Line 252  class MapCanvas(wxWindow, ViewPort):
252                  yield True                  yield True
253    
254              dc.EndDrawing()              dc.EndDrawing()
255              dc.SelectObject(wx.wxNullBitmap)              dc.SelectObject(wx.NullBitmap)
256    
257          if self.HasSelectedShapes() and self.selection_bitmap is None:          if self.HasSelectedShapes() and self.selection_bitmap is None:
258              bitmap = wx.wxEmptyBitmap(width, height)              bitmap = wx.EmptyBitmap(width, height)
259              dc.SelectObject(bitmap)              dc.SelectObject(bitmap)
260              dc.BeginDrawing()              dc.BeginDrawing()
261              dc.SetBackground(wx.wxWHITE_BRUSH)              dc.SetBackground(wx.WHITE_BRUSH)
262              dc.Clear()              dc.Clear()
263    
264              renderer = ScreenRenderer(dc, self.Map(), self.scale, self.offset,              renderer = ScreenRenderer(dc, self.Map(), self.scale, self.offset,
# Line 276  class MapCanvas(wxWindow, ViewPort): Line 269  class MapCanvas(wxWindow, ViewPort):
269                  yield True                  yield True
270    
271              dc.EndDrawing()              dc.EndDrawing()
272              dc.SelectObject(wx.wxNullBitmap)              dc.SelectObject(wx.NullBitmap)
273    
274              bitmap.SetMask(wx.wxMaskColour(bitmap, wx.wxWHITE))              bitmap.SetMask(wx.Mask(bitmap, wx.WHITE))
275              self.selection_bitmap = bitmap              self.selection_bitmap = bitmap
276    
277          yield False          yield False
# Line 289  class MapCanvas(wxWindow, ViewPort): Line 282  class MapCanvas(wxWindow, ViewPort):
282              export_path = self.export_path              export_path = self.export_path
283          else:          else:
284              export_path="."              export_path="."
285          dlg = wxFileDialog(self, _("Export Map"), export_path, "",          dlg = wx.FileDialog(self, _("Export Map"), export_path, "",
286                             "Enhanced Metafile (*.wmf)|*.wmf",                             "Enhanced Metafile (*.wmf)|*.wmf",
287                             wxSAVE|wxOVERWRITE_PROMPT)                             wx.SAVE|wx.OVERWRITE_PROMPT)
288          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wx.ID_OK:
289              self.export_path = os.path.dirname(dlg.GetPath())              self.export_path = os.path.dirname(dlg.GetPath())
290              dc = wxMetaFileDC(dlg.GetPath())              dc = wx.MetaFileDC(dlg.GetPath())
291        
292              scale, offset, mapregion = output_transform(self.scale,              scale, offset, mapregion = output_transform(self.scale,
293                                                          self.offset,                                                          self.offset,
294                                                          self.GetSizeTuple(),                                                          self.GetSizeTuple(),
# Line 315  class MapCanvas(wxWindow, ViewPort): Line 308  class MapCanvas(wxWindow, ViewPort):
308              dc.EndDrawing()              dc.EndDrawing()
309              dc.Close()              dc.Close()
310          dlg.Destroy()          dlg.Destroy()
311            
312      def Print(self):      def Print(self):
313          printer = wx.wxPrinter()          printer = wx.Printer()
314          width, height = self.GetSizeTuple()          width, height = self.GetSizeTuple()
315          selected_layer = self.selection.SelectedLayer()          selected_layer = self.selection.SelectedLayer()
316          selected_shapes = self.selection.SelectedShapes()          selected_shapes = self.selection.SelectedShapes()
317            
318          printout = MapPrintout(self, self.Map(), (0, 0, width, height),          printout = MapPrintout(self, self.Map(), (0, 0, width, height),
319                                 selected_layer, selected_shapes)                                 selected_layer, selected_shapes)
320          printer.Print(self, printout, True)          printer.Print(self, printout, True)
321          printout.Destroy()          printout.Destroy()
# Line 370  class MapCanvas(wxWindow, ViewPort): Line 363  class MapCanvas(wxWindow, ViewPort):
363      def OnLeftDown(self, event):      def OnLeftDown(self, event):
364          self.MouseLeftDown(event)          self.MouseLeftDown(event)
365          if self.tool is not None:          if self.tool is not None:
366              self.drag_dc = wxClientDC(self)              self.drag_dc = wx.ClientDC(self)
367              self.drag_dc.SetLogicalFunction(wxINVERT)              self.drag_dc.SetLogicalFunction(wx.INVERT)
368              self.drag_dc.SetBrush(wxTRANSPARENT_BRUSH)              self.drag_dc.SetBrush(wx.TRANSPARENT_BRUSH)
369              self.tool.Show(self.drag_dc)              self.tool.Show(self.drag_dc)
370              self.CaptureMouse()              self.CaptureMouse()
371              self.dragging = 1              self.dragging = 1
# Line 429  class MapCanvas(wxWindow, ViewPort): Line 422  class MapCanvas(wxWindow, ViewPort):
422          self.redraw_selection()          self.redraw_selection()
423    
424      def GetTextExtent(self, text):      def GetTextExtent(self, text):
425          dc = wxClientDC(self)          dc = wx.ClientDC(self)
426          font = wxFont(10, wx.wxSWISS, wx.wxNORMAL, wx.wxNORMAL)          font = wx.Font(10, wx.SWISS, wx.NORMAL, wx.NORMAL)
427          dc.SetFont(font)          dc.SetFont(font)
428          return dc.GetTextExtent(text)          return dc.GetTextExtent(text)
429    
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