Sample image drawing code (not fully functional yet)

diff --git a/Mac/Demo/imgbrowse/imgbrowse.py b/Mac/Demo/imgbrowse/imgbrowse.py
new file mode 100644 (file)
index 0000000..e498a06
--- /dev/null
+++ b/Mac/Demo/imgbrowse/imgbrowse.py
@@ -0,0 +1,156 @@
+"""imgbrowse - Display pictures using img"""
+
+import FrameWork
+import EasyDialogs
+import Res
+import Qd
+import QuickDraw
+import Win
+#import List
+import sys
+import struct
+import img
+import imgformat
+import macfs
+import struct
+
+
+# Where is the picture window?
+LEFT=200
+TOP=64
+MINWIDTH=64
+MINHEIGHT=64
+MAXWIDTH=320
+MAXHEIGHT=320
+
+def dumppixmap(data):
+       baseAddr, \
+               rowBytes, \
+               t, l, b, r, \
+               pmVersion, \
+               packType, packSize, \
+               hRes, vRes, \
+               pixelType, pixelSize, \
+               cmpCount, cmpSize, \
+               planeBytes, pmTable, pmReserved \
+                       = struct.unpack("lhhhhhhhlllhhhhlll", data)
+       print 'Base:       0x%x'%baseAddr
+       print 'rowBytes:   %d (0x%x)'%(rowBytes&0x3fff, rowBytes)
+       print 'rect:       %d, %d, %d, %d'%(t, l, b, r)
+       print 'pmVersion:  0x%x'%pmVersion
+       print 'packing:    %d %d'%(packType, packSize)
+       print 'resolution: %f x %f'%(float(hRes)/0x10000, float(vRes)/0x10000)
+       print 'pixeltype:  %d, size %d'%(pixelType, pixelSize)
+       print 'components: %d, size %d'%(cmpCount, cmpSize)
+       print 'planeBytes: %d (0x%x)'%(planeBytes, planeBytes)
+       print 'pmTable:    0x%x'%pmTable
+       print 'pmReserved: 0x%x'%pmReserved
+
+def mk16pixmap(w, h, data):
+       """kludge a pixmap together"""
+       rv = struct.pack("lhhhhhhhlllhhhhlll",
+               id(data),
+               w*2 + 0x8000,
+               0, 0, h, w,
+               0,
+               0, 0, # XXXX?
+               72<<16, 72<<16,
+               16, 16, # XXXX
+               3, 5,
+               0, 0, 0)
+       print 'Our pixmap, size %d:'%len(rv)
+       dumppixmap(rv)
+       return Qd.RawBitMap(rv)
+
+def main():
+       print 'hello world'
+       imgbrowse()
+
+class imgbrowse(FrameWork.Application):
+       def __init__(self):
+               # First init menus, etc.
+               FrameWork.Application.__init__(self)
+               self.lastwin = None
+               # Finally, go into the event loop
+               self.mainloop()
+               
+       def makeusermenus(self):
+               self.filemenu = m = FrameWork.Menu(self.menubar, "File")
+               self.openitem = FrameWork.MenuItem(m, "Open...", "O", self.opendoc)
+               self.infoitem = FrameWork.MenuItem(m, "Info", "I", self.info)
+               self.quititem = FrameWork.MenuItem(m, "Quit", "Q", self.quit)
+       
+       def quit(self, *args):
+               raise self
+               
+       def opendoc(self, *args):
+               fss, ok = macfs.StandardGetFile() # Any file type
+               if not ok:
+                       return
+               bar = EasyDialogs.ProgressBar('Reading and converting...')
+               pathname = fss.as_pathname()
+               try:
+                       rdr = img.reader(imgformat.macrgb16, pathname)
+               except img.error, arg:
+                       EasyDialogs.Message(`arg`)
+                       return
+               w, h = rdr.width, rdr.height
+               bar.set(10)
+               data = rdr.read()
+               del bar
+               pixmap = mk16pixmap(w, h, data)
+               self.showimg(w, h, pixmap)
+                       
+       def showimg(self, w, h, pixmap):
+               win = imgwindow(self)
+               win.open(w, h, pixmap)
+               self.lastwin = win
+
+       def info(self, *args):
+               if self.lastwin:
+                       self.lastwin.info()             
+               
+class imgwindow(FrameWork.Window):
+       def open(self, width, height, pixmap):
+               self.pixmap = pixmap
+               self.pictrect = (0, 0, width, height)
+               bounds = (LEFT, TOP, LEFT+width, TOP+height)
+               
+               self.wid = Win.NewCWindow(bounds, "Picture", 1, 0, -1, 1, 0)
+               self.do_postopen()
+               
+       def do_update(self, *args):
+               pass
+               currect = self.fitrect()
+               print 'PICT:', self.pictrect
+               print 'WIND:', currect
+               print 'ARGS:', (self.pixmap, self.wid.GetWindowPort().portBits, self.pictrect,
+                               currect, QuickDraw.srcCopy, None)
+               self.info()
+               Qd.CopyBits(self.pixmap, self.wid.GetWindowPort().portBits, self.pictrect,
+                               currect, QuickDraw.srcCopy, None)
+##             Qd.DrawPicture(self.picture, currect)
+               
+       def fitrect(self):
+               """Return self.pictrect scaled to fit in window"""
+               graf = self.wid.GetWindowPort()
+               screenrect = graf.portRect
+               picwidth = self.pictrect[2] - self.pictrect[0]
+               picheight = self.pictrect[3] - self.pictrect[1]
+               if picwidth > screenrect[2] - screenrect[0]:
+                       factor = float(picwidth) / float(screenrect[2]-screenrect[0])
+                       picwidth = picwidth / factor
+                       picheight = picheight / factor
+               if picheight > screenrect[3] - screenrect[1]:
+                       factor = float(picheight) / float(screenrect[3]-screenrect[1])
+                       picwidth = picwidth / factor
+                       picheight = picheight / factor
+               return (screenrect[0], screenrect[1], screenrect[0]+int(picwidth),
+                               screenrect[1]+int(picheight))
+                               
+       def info(self):
+               graf = self.wid.GetWindowPort()
+               bits = graf.portBits
+               dumppixmap(bits.pixmap_data)
+
+main()