Mac/Demo/PICTbrowse/PICTbrowse.py

   1 """browsepict - Display all "PICT" resources found"""
   2
   3 import FrameWork
   4 import EasyDialogs
   5 from Carbon import Res
   6 from Carbon import Qd
   7 from Carbon import Win
   8 from Carbon import Controls
   9 from Carbon import List
  10 import struct
  11 import macresource
  12
  13 #
  14 # Resource definitions
  15 ID_MAIN=512
  16 MAIN_LIST=1
  17 MAIN_SHOW=2
  18
  19 # Where is the picture window?
  20 LEFT=200
  21 TOP=64
  22
  23 def main():
  24     macresource.need('DLOG', ID_MAIN, "PICTbrowse.rsrc")
  25     PICTbrowse()
  26
  27 class PICTbrowse(FrameWork.Application):
  28     def __init__(self):
  29         # First init menus, etc.
  30         FrameWork.Application.__init__(self)
  31         # Next create our dialog
  32         self.main_dialog = MyDialog(self)
  33         # Now open the dialog
  34         contents = self.findPICTresources()
  35         self.main_dialog.open(ID_MAIN, contents)
  36         # Finally, go into the event loop
  37         self.mainloop()
  38
  39     def makeusermenus(self):
  40         self.filemenu = m = FrameWork.Menu(self.menubar, "File")
  41         self.quititem = FrameWork.MenuItem(m, "Quit", "Q", self.quit)
  42
  43     def quit(self, *args):
  44         self._quit()
  45
  46     def showPICT(self, resid):
  47         w = PICTwindow(self)
  48         w.open(resid)
  49         #EasyDialogs.Message('Show PICT %r' % (resid,))
  50
  51     def findPICTresources(self):
  52         num = Res.CountResources('PICT')
  53         rv = []
  54         for i in range(1, num+1):
  55             Res.SetResLoad(0)
  56             try:
  57                 r = Res.GetIndResource('PICT', i)
  58             finally:
  59                 Res.SetResLoad(1)
  60             id, type, name = r.GetResInfo()
  61             rv.append((id, name))
  62         return rv
  63
  64 class PICTwindow(FrameWork.Window):
  65     def open(self, (resid, resname)):
  66         if not resname:
  67             resname = '#%r' % (resid,)
  68         self.resid = resid
  69         picture = Qd.GetPicture(self.resid)
  70         # Get rect for picture
  71         print repr(picture.data[:16])
  72         sz, t, l, b, r = struct.unpack('hhhhh', picture.data[:10])
  73         print 'pict:', t, l, b, r
  74         width = r-l
  75         height = b-t
  76         if width < 64: width = 64
  77         elif width > 480: width = 480
  78         if height < 64: height = 64
  79         elif height > 320: height = 320
  80         bounds = (LEFT, TOP, LEFT+width, TOP+height)
  81         print 'bounds:', bounds
  82
  83         self.wid = Win.NewWindow(bounds, resname, 1, 0, -1, 1, 0)
  84         self.wid.SetWindowPic(picture)
  85         self.do_postopen()
  86
  87 class MyDialog(FrameWork.DialogWindow):
  88     "Main dialog window for PICTbrowse"
  89
  90     def open(self, id, contents):
  91         self.id = id
  92         FrameWork.DialogWindow.open(self, ID_MAIN)
  93         self.dlg.SetDialogDefaultItem(MAIN_SHOW)
  94         self.contents = contents
  95         self.ctl = self.dlg.GetDialogItemAsControl(MAIN_LIST)
  96         h = self.ctl.GetControlData_Handle(Controls.kControlListBoxPart,
  97                         Controls.kControlListBoxListHandleTag)
  98         self.list = List.as_List(h)
  99         self.setlist()
 100
 101     def setlist(self):
 102         self.list.LDelRow(0, 0)
 103         self.list.LSetDrawingMode(0)
 104         if self.contents:
 105             self.list.LAddRow(len(self.contents), 0)
 106             for i in range(len(self.contents)):
 107                 v = repr(self.contents[i][0])
 108                 if self.contents[i][1]:
 109                     v = v + '"' + self.contents[i][1] + '"'
 110                 self.list.LSetCell(v, (0, i))
 111         self.list.LSetDrawingMode(1)
 112         self.list.LUpdate(self.wid.GetWindowPort().visRgn)
 113
 114     def getselection(self):
 115         items = []
 116         point = (0,0)
 117         while 1:
 118             ok, point = self.list.LGetSelect(1, point)
 119             if not ok:
 120                 break
 121             items.append(point[1])
 122             point = point[0], point[1]+1
 123         values = []
 124         for i in items:
 125             values.append(self.contents[i])
 126         return values
 127
 128     def do_show(self, *args):
 129         selection = self.getselection()
 130         for resid in selection:
 131             self.parent.showPICT(resid)
 132
 133     def do_close(self):
 134         self.close()
 135
 136     def do_itemhit(self, item, event):
 137         if item == MAIN_SHOW:
 138             self.do_show()
 139
 140 main()