/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/view.py
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revision 799 by jonathan, Wed Apr 30 17:02:21 2003 UTC revision 855 by frank, Wed May 7 18:24:27 2003 UTC
# Line 17  from math import hypot Line 17  from math import hypot
17    
18  from wxPython.wx import wxWindow,\  from wxPython.wx import wxWindow,\
19       wxPaintDC, wxColour, wxClientDC, wxINVERT, wxTRANSPARENT_BRUSH, wxFont,\       wxPaintDC, wxColour, wxClientDC, wxINVERT, wxTRANSPARENT_BRUSH, wxFont,\
20       EVT_PAINT, EVT_LEFT_DOWN, EVT_LEFT_UP, EVT_MOTION, EVT_LEAVE_WINDOW       EVT_PAINT, EVT_LEFT_DOWN, EVT_LEFT_UP, EVT_MOTION, EVT_LEAVE_WINDOW, \
21         wxBITMAP_TYPE_XPM, wxBeginBusyCursor, wxEndBusyCursor, wxCursor, \
22         wxImageFromBitmap
23    
24    
25  from wxPython import wx  from wxPython import wx
# Line 34  from Thuban.Model.label import ALIGN_CEN Line 36  from Thuban.Model.label import ALIGN_CEN
36  from Thuban.Lib.connector import Publisher  from Thuban.Lib.connector import Publisher
37  from Thuban.Model.color import Color  from Thuban.Model.color import Color
38    
39    import resource
40    
41  from selection import Selection  from selection import Selection
42  from renderer import ScreenRenderer, PrinterRender  from renderer import ScreenRenderer, PrinterRender
43    
44  import labeldialog  import labeldialog
45    
46  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, \
47                         SCALE_CHANGED
48    
49    
50  #  #
# Line 273  class MapCanvas(wxWindow, Publisher): Line 278  class MapCanvas(wxWindow, Publisher):
278      delegated_methods = {"SelectLayer": "selection",      delegated_methods = {"SelectLayer": "selection",
279                           "SelectShapes": "selection",                           "SelectShapes": "selection",
280                           "SelectedLayer": "selection",                           "SelectedLayer": "selection",
281                           "HasSelectedLayer": "selection"}                           "HasSelectedLayer": "selection",
282                             "HasSelectedShapes": "selection"}
283    
284      def __init__(self, parent, winid):      def __init__(self, parent, winid):
285          wxWindow.__init__(self, parent, winid)          wxWindow.__init__(self, parent, winid)
# Line 357  class MapCanvas(wxWindow, Publisher): Line 363  class MapCanvas(wxWindow, Publisher):
363          dc = wxPaintDC(self)          dc = wxPaintDC(self)
364          clear = self.map is None or not self.map.HasLayers()          clear = self.map is None or not self.map.HasLayers()
365    
366            #wxBeginBusyCursor()
367    
368          if not clear:          if not clear:
369              try:              try:
370                  self.do_redraw()                  self.do_redraw()
# Line 376  class MapCanvas(wxWindow, Publisher): Line 384  class MapCanvas(wxWindow, Publisher):
384              dc.Clear()              dc.Clear()
385              dc.EndDrawing()              dc.EndDrawing()
386    
387            #wxEndBusyCursor()
388    
389      def do_redraw(self):      def do_redraw(self):
390          # This should only be called if we have a non-empty map.          # This should only be called if we have a non-empty map.
391    
# Line 466  class MapCanvas(wxWindow, Publisher): Line 476  class MapCanvas(wxWindow, Publisher):
476          self.scale = scale          self.scale = scale
477          self.offset = offset          self.offset = offset
478          self.full_redraw()          self.full_redraw()
479            self.issue(SCALE_CHANGED, scale)
480    
481      def proj_to_win(self, x, y):      def proj_to_win(self, x, y):
482          """\          """\
# Line 509  class MapCanvas(wxWindow, Publisher): Line 520  class MapCanvas(wxWindow, Publisher):
520          if bbox is not None:          if bbox is not None:
521              self.FitRectToWindow(bbox)              self.FitRectToWindow(bbox)
522    
523        def FitLayerToWindow(self, layer):
524            """Fit the given layer to the window.
525    
526            Set the scale so that the layer fits exactly into the window and
527            center it in the window.
528            """
529            
530            bbox = layer.LatLongBoundingBox()
531            if bbox is not None:
532                proj = self.map.GetProjection()
533                if proj is not None:
534                    bbox = proj.ForwardBBox(bbox)
535    
536                if bbox is not None:
537                    self.FitRectToWindow(bbox)
538    
539        def FitSelectedToWindow(self):
540            layer = self.selection.SelectedLayer()
541            shapes = self.selection.SelectedShapes()
542    
543            bbox = layer.ShapesBoundingBox(shapes)
544            if bbox is not None:
545                proj = self.map.GetProjection()
546                if proj is not None:
547                    bbox = proj.ForwardBBox(bbox)
548    
549                if bbox is not None:
550                    self.FitRectToWindow(bbox)
551    
552      def ZoomFactor(self, factor, center = None):      def ZoomFactor(self, factor, center = None):
553          """Multiply the zoom by factor and center on center.          """Multiply the zoom by factor and center on center.
554    
# Line 572  class MapCanvas(wxWindow, Publisher): Line 612  class MapCanvas(wxWindow, Publisher):
612      def PanTool(self):      def PanTool(self):
613          """Start the pan tool"""          """Start the pan tool"""
614          self.SelectTool(PanTool(self))          self.SelectTool(PanTool(self))
615            #img = resource.GetImageResource("pan", wxBITMAP_TYPE_XPM)
616            #bmp = resource.GetBitmapResource("pan", wxBITMAP_TYPE_XPM)
617            #print bmp
618            #img = wxImageFromBitmap(bmp)
619            #print img
620            #cur = wxCursor(img)
621            #print cur
622            #self.SetCursor(cur)
623    
624      def IdentifyTool(self):      def IdentifyTool(self):
625          """Start the identify tool"""          """Start the identify tool"""
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