Sample image drawing code (not fully functional yet)
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Jack Jansen
parent
6f47bf44ca
commit
4f508ad495
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"""imgbrowse - Display pictures using img"""
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import FrameWork
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import EasyDialogs
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import Res
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import Qd
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import QuickDraw
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import Win
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#import List
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import sys
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import struct
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import img
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import imgformat
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import macfs
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import struct
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# Where is the picture window?
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LEFT=200
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TOP=64
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MINWIDTH=64
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MINHEIGHT=64
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MAXWIDTH=320
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MAXHEIGHT=320
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def dumppixmap(data):
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baseAddr, \
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rowBytes, \
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t, l, b, r, \
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pmVersion, \
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packType, packSize, \
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hRes, vRes, \
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pixelType, pixelSize, \
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cmpCount, cmpSize, \
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planeBytes, pmTable, pmReserved \
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= struct.unpack("lhhhhhhhlllhhhhlll", data)
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print 'Base: 0x%x'%baseAddr
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print 'rowBytes: %d (0x%x)'%(rowBytes&0x3fff, rowBytes)
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print 'rect: %d, %d, %d, %d'%(t, l, b, r)
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print 'pmVersion: 0x%x'%pmVersion
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print 'packing: %d %d'%(packType, packSize)
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print 'resolution: %f x %f'%(float(hRes)/0x10000, float(vRes)/0x10000)
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print 'pixeltype: %d, size %d'%(pixelType, pixelSize)
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print 'components: %d, size %d'%(cmpCount, cmpSize)
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print 'planeBytes: %d (0x%x)'%(planeBytes, planeBytes)
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print 'pmTable: 0x%x'%pmTable
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print 'pmReserved: 0x%x'%pmReserved
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def mk16pixmap(w, h, data):
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"""kludge a pixmap together"""
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rv = struct.pack("lhhhhhhhlllhhhhlll",
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id(data),
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w*2 + 0x8000,
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0, 0, h, w,
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0,
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0, 0, # XXXX?
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72<<16, 72<<16,
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16, 16, # XXXX
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3, 5,
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0, 0, 0)
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print 'Our pixmap, size %d:'%len(rv)
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dumppixmap(rv)
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return Qd.RawBitMap(rv)
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def main():
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print 'hello world'
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imgbrowse()
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class imgbrowse(FrameWork.Application):
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def __init__(self):
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# First init menus, etc.
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FrameWork.Application.__init__(self)
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self.lastwin = None
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# Finally, go into the event loop
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self.mainloop()
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def makeusermenus(self):
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self.filemenu = m = FrameWork.Menu(self.menubar, "File")
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self.openitem = FrameWork.MenuItem(m, "Open...", "O", self.opendoc)
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self.infoitem = FrameWork.MenuItem(m, "Info", "I", self.info)
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self.quititem = FrameWork.MenuItem(m, "Quit", "Q", self.quit)
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def quit(self, *args):
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raise self
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def opendoc(self, *args):
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fss, ok = macfs.StandardGetFile() # Any file type
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if not ok:
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return
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bar = EasyDialogs.ProgressBar('Reading and converting...')
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pathname = fss.as_pathname()
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try:
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rdr = img.reader(imgformat.macrgb16, pathname)
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except img.error, arg:
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EasyDialogs.Message(`arg`)
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return
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w, h = rdr.width, rdr.height
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bar.set(10)
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data = rdr.read()
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del bar
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pixmap = mk16pixmap(w, h, data)
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self.showimg(w, h, pixmap)
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def showimg(self, w, h, pixmap):
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win = imgwindow(self)
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win.open(w, h, pixmap)
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self.lastwin = win
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def info(self, *args):
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if self.lastwin:
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self.lastwin.info()
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class imgwindow(FrameWork.Window):
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def open(self, width, height, pixmap):
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self.pixmap = pixmap
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self.pictrect = (0, 0, width, height)
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bounds = (LEFT, TOP, LEFT+width, TOP+height)
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self.wid = Win.NewCWindow(bounds, "Picture", 1, 0, -1, 1, 0)
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self.do_postopen()
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def do_update(self, *args):
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pass
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currect = self.fitrect()
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print 'PICT:', self.pictrect
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print 'WIND:', currect
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print 'ARGS:', (self.pixmap, self.wid.GetWindowPort().portBits, self.pictrect,
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currect, QuickDraw.srcCopy, None)
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self.info()
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Qd.CopyBits(self.pixmap, self.wid.GetWindowPort().portBits, self.pictrect,
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currect, QuickDraw.srcCopy, None)
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## Qd.DrawPicture(self.picture, currect)
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def fitrect(self):
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"""Return self.pictrect scaled to fit in window"""
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graf = self.wid.GetWindowPort()
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screenrect = graf.portRect
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picwidth = self.pictrect[2] - self.pictrect[0]
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picheight = self.pictrect[3] - self.pictrect[1]
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if picwidth > screenrect[2] - screenrect[0]:
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factor = float(picwidth) / float(screenrect[2]-screenrect[0])
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picwidth = picwidth / factor
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picheight = picheight / factor
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if picheight > screenrect[3] - screenrect[1]:
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factor = float(picheight) / float(screenrect[3]-screenrect[1])
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picwidth = picwidth / factor
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picheight = picheight / factor
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return (screenrect[0], screenrect[1], screenrect[0]+int(picwidth),
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screenrect[1]+int(picheight))
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def info(self):
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graf = self.wid.GetWindowPort()
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bits = graf.portBits
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dumppixmap(bits.pixmap_data)
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main()
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