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path: root/Mac/Demo/PICTbrowse/ICONbrowse.py
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"""browsepict - Display all "ICON" resources found"""

import FrameWork
import EasyDialogs
from Carbon import Res
from Carbon import Qd
from Carbon import Win
from Carbon import Controls
from Carbon import List
import sys
import struct
from Carbon import Icn
import macresource

#
# Resource definitions
ID_MAIN=512
MAIN_LIST=1
MAIN_SHOW=2

# Where is the picture window?
LEFT=200
TOP=64
MINWIDTH=32
MINHEIGHT=32
MAXWIDTH=320
MAXHEIGHT=320

def main():
	macresource.need('DLOG', ID_MAIN, "PICTbrowse.rsrc")
	ICONbrowse()

class ICONbrowse(FrameWork.Application):
	def __init__(self):
		# First init menus, etc.
		FrameWork.Application.__init__(self)
		# Next create our dialog
		self.main_dialog = MyDialog(self)
		# Now open the dialog
		contents = self.findICONresources()
		self.main_dialog.open(ID_MAIN, contents)
		# Finally, go into the event loop
		self.mainloop()
	
	def makeusermenus(self):
		self.filemenu = m = FrameWork.Menu(self.menubar, "File")
		self.quititem = FrameWork.MenuItem(m, "Quit", "Q", self.quit)
	
	def quit(self, *args):
		self._quit()
		
	def showICON(self, resid):
		w = ICONwindow(self)
		w.open(resid)
		#EasyDialogs.Message('Show ICON '+`resid`)
		
	def findICONresources(self):
		num = Res.CountResources('ICON')
		rv = []
		for i in range(1, num+1):
			Res.SetResLoad(0)
			try:
				r = Res.GetIndResource('ICON', i)
			finally:
				Res.SetResLoad(1)
			id, type, name = r.GetResInfo()
			rv.append((id, name))
		return rv
		
class ICONwindow(FrameWork.Window):
	def open(self, (resid, resname)):
		if not resname:
			resname = '#'+`resid`
		self.resid = resid
		self.picture = Icn.GetIcon(self.resid)
		l, t, r, b = 0, 0, 32, 32
		self.pictrect = (l, t, r, b)
		width = r-l
		height = b-t
		if width < MINWIDTH: width = MINWIDTH
		elif width > MAXWIDTH: width = MAXWIDTH
		if height < MINHEIGHT: height = MINHEIGHT
		elif height > MAXHEIGHT: height = MAXHEIGHT
		bounds = (LEFT, TOP, LEFT+width, TOP+height)
		
		self.wid = Win.NewWindow(bounds, resname, 1, 0, -1, 1, 0)
		self.do_postopen()
		
	def do_update(self, *args):
		currect = self.fitrect()
		Icn.PlotIcon(currect, self.picture)
		
	def fitrect(self):
		"""Return self.pictrect scaled to fit in window"""
		graf = self.wid.GetWindowPort()
		screenrect = graf.GetPortBounds()
		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))
		
class MyDialog(FrameWork.DialogWindow):
	"Main dialog window for ICONbrowse"

	def open(self, id, contents):
		self.id = id
		FrameWork.DialogWindow.open(self, ID_MAIN)
		self.dlg.SetDialogDefaultItem(MAIN_SHOW)
		self.contents = contents
		self.ctl = self.dlg.GetDialogItemAsControl(MAIN_LIST)
		h = self.ctl.GetControlData_Handle(Controls.kControlListBoxPart, 
				Controls.kControlListBoxListHandleTag)
		self.list = List.as_List(h)
		self.setlist()

	def setlist(self):
		self.list.LDelRow(0, 0)
		self.list.LSetDrawingMode(0)
		if self.contents:
			self.list.LAddRow(len(self.contents), 0)
			for i in range(len(self.contents)):
				v = `self.contents[i][0]`
				if self.contents[i][1]:
					v = v + '"' + self.contents[i][1] + '"'
				self.list.LSetCell(v, (0, i))
		self.list.LSetDrawingMode(1)
		self.list.LUpdate(self.wid.GetWindowPort().visRgn)
		
	def getselection(self):
		items = []
		point = (0,0)
		while 1:
			ok, point = self.list.LGetSelect(1, point)
			if not ok:
				break
			items.append(point[1])
			point = point[0], point[1]+1
		values = []
		for i in items:
			values.append(self.contents[i])
		return values
		
	def do_show(self, *args):
		selection = self.getselection()
		for resid in selection:
			self.parent.showICON(resid)
		
	def do_close(self):
		self.close()
		
	def do_itemhit(self, item, event):
		if item == MAIN_SHOW:
			self.do_show()

main()