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
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()