Annotation of previous/python-ui/uihelpers.py, revision 1.1.1.1

1.1       root        1: #!/usr/bin/env python
                      2: #
                      3: # Misc common helper classes and functions for the Hatari UI
                      4: #
                      5: # Copyright (C) 2008-2009 by Eero Tamminen <eerot at berlios>
                      6: #
                      7: # This program is free software; you can redistribute it and/or modify
                      8: # it under the terms of the GNU General Public License as published by
                      9: # the Free Software Foundation; either version 2 of the License, or
                     10: # (at your option) any later version.
                     11: #
                     12: # This program is distributed in the hope that it will be useful,
                     13: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     14: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     15: # GNU General Public License for more details.
                     16: 
                     17: import os
                     18: import sys
                     19: # use correct version of pygtk/gtk
                     20: import pygtk
                     21: pygtk.require('2.0')
                     22: import gtk
                     23: import gobject
                     24: 
                     25: 
                     26: # leak debugging
                     27: #import gc
                     28: #gc.set_debug(gc.DEBUG_UNCOLLECTABLE)
                     29: 
                     30: 
                     31: # ---------------------
                     32: # Hatari UI information
                     33: 
                     34: class UInfo:
                     35:     """singleton constants for the UI windows,
                     36:     one instance is needed to initialize these properly"""
                     37:     version = "v1.0"
                     38:     name = "Hatari UI"
                     39:     logo = "hatari.png"
                     40:     icon = "hatari-icon.png"
                     41:     copyright = "UI copyright (C) 2008-2010 by Eero Tamminen"
                     42: 
                     43:     # path to the directory where the called script resides
                     44:     path = os.path.dirname(sys.argv[0])
                     45:     
                     46:     def __init__(self, path = None):
                     47:         "UIinfo([path]), set suitable paths for resources from CWD and path"
                     48:         if path:
                     49:             self.path = path
                     50:         if not os.path.exists(UInfo.icon):
                     51:             UInfo.icon = self._get_path(UInfo.icon)
                     52:         if not os.path.exists(UInfo.logo):
                     53:             UInfo.logo = self._get_path(UInfo.logo)
                     54: 
                     55:     def _get_path(self, filename):
                     56:         sep = os.path.sep
                     57:         testpath = "%s%s%s" % (self.path, sep, filename)
                     58:         if os.path.exists(testpath):
                     59:             return testpath
                     60: 
                     61: 
                     62: # --------------------------------------------------------
                     63: # functions for showing HTML files
                     64: 
                     65: class UIHelp:
                     66:     def __init__(self):
                     67:         """determine HTML viewer and where docs are"""
                     68:         self._view = self.get_html_viewer()
                     69:         self._path = self.get_doc_path()
                     70: 
                     71:     def get_html_viewer(self):
                     72:         """return name of html viewer or None"""
                     73:         path = self.get_binary_path("xdg-open")
                     74:         if path:
                     75:             return path
                     76:         path = self.get_binary_path("firefox")
                     77:         if path:
                     78:             return path
                     79:         return None
                     80:         
                     81:     def get_binary_path(self, name):
                     82:         """return true if given binary is in path"""
                     83:         # could also try running the binary with "--version" arg
                     84:         # and check the exec return value
                     85:         if os.sys.platform == "win32":
                     86:             for i in os.environ['PATH'].split(';'):
                     87:                 fname = os.path.join(i, name)
                     88:                 if os.access(fname, os.X_OK) and not os.path.isdir(fname):
                     89:                     return fname
                     90:         else:
                     91:             for i in os.environ['PATH'].split(':'):
                     92:                 fname = os.path.join(i, name)
                     93:                 if os.access(fname, os.X_OK) and not os.path.isdir(fname):
                     94:                     return fname
                     95:         return None
                     96: 
                     97:     def get_doc_path(self):
                     98:         """return path or URL to Hatari docs or None"""
                     99:         # first try whether there are local Hatari docs in standard place
                    100:         # for this Hatari/UI version
                    101:         sep = os.sep
                    102:         path = self.get_binary_path("hatari")
                    103:         path = sep.join(path.split(sep)[:-2]) # remove "bin/hatari"
                    104:         path = path + sep + "share" + sep + "doc" + sep + "hatari" + sep
                    105:         if os.path.exists(path + "manual.html"):
                    106:             return path
                    107:         # if not, point to latest Hatari HG version docs
                    108:         print "WARNING: Hatari manual not found at:", path + "manual.html"
                    109:         return "http://hg.berlios.de/repos/hatari/raw-file/tip/doc/"
                    110: 
                    111:     def set_mainwin(self, widget):
                    112:         self.mainwin = widget
                    113: 
                    114:     def view_url(self, url, name):
                    115:         """view given URL or file path, or error use 'name' as its name"""
                    116:         if self._view and "://" in url or os.path.exists(url):
                    117:             print "RUN: '%s' '%s'" % (self._view, url)
                    118:             os.spawnlp(os.P_NOWAIT, self._view, self._view, url)
                    119:             return
                    120:         if not self._view:
                    121:             msg = "Cannot view %s, HTML viewer missing" % name
                    122:         else:
                    123:             msg = "Cannot view %s,\n'%s' file is missing" % (name, url)
                    124:         from dialogs import ErrorDialog
                    125:         ErrorDialog(self.mainwin).run(msg)
                    126: 
                    127:     def view_hatari_manual(self, dummy=None):
                    128:         self.view_url(self._path + "manual.html", "Hatari manual")
                    129: 
                    130:     def view_hatari_compatibility(self, dummy=None):
                    131:         self.view_url(self._path + "compatibility.html", "Hatari compatibility list")
                    132: 
                    133:     def view_hatari_releasenotes(self, dummy=None):
                    134:         self.view_url(self._path + "release-notes.txt", "Hatari release notes")
                    135: 
                    136:     def view_hatari_todo(self, dummy=None):
                    137:         self.view_url(self._path + "todo.txt", "Hatari TODO items")
                    138: 
                    139:     def view_hatari_bugs(self, dummy=None):
                    140:         self.view_url("http://developer.berlios.de/bugs/?group_id=10436", "Hatari bug tracker")
                    141: 
                    142:     def view_hatari_mails(self, dummy=None):
                    143:         self.view_url("http://developer.berlios.de/mail/?group_id=10436", "Hatari mailing lists")
                    144: 
                    145:     def view_hatari_repository(self, dummy=None):
                    146:         self.view_url("http://hg.berlios.de/repos/hatari", "latest Hatari changes")
                    147: 
                    148:     def view_hatari_authors(self, dummy=None):
                    149:         self.view_url(self._path + "authors.txt", "Hatari authors")
                    150: 
                    151:     def view_hatari_page(self, dummy=None):
                    152:         self.view_url("http://hatari.berlios.de/", "Hatari home page")
                    153: 
                    154:     def view_hatariui_page(self, dummy=None):
                    155:         self.view_url("http://koti.mbnet.fi/tammat/hatari/hatari-ui.shtml", "Hatari UI home page")
                    156: 
                    157: 
                    158: # --------------------------------------------------------
                    159: # auxiliary class+callback to be used with the PasteDialog
                    160: 
                    161: class HatariTextInsert:
                    162:     def __init__(self, hatari, text):
                    163:         self.index = 0
                    164:         self.text = text
                    165:         self.pressed = False
                    166:         self.hatari = hatari
                    167:         print "OUTPUT '%s'" % text
                    168:         gobject.timeout_add(100, _text_insert_cb, self)
                    169: 
                    170: # callback to insert text object to Hatari character at the time, at given interval
                    171: def _text_insert_cb(textobj):
                    172:     char = textobj.text[textobj.index]
                    173:     if textobj.pressed:
                    174:         textobj.pressed = False
                    175:         textobj.hatari.insert_event("keyrelease %c" % char)
                    176:         textobj.index += 1
                    177:         if textobj.index >= len(textobj.text):
                    178:             del(textobj)
                    179:             return False
                    180:     else:
                    181:         textobj.pressed = True
                    182:         textobj.hatari.insert_event("keypress %c" % char)
                    183:     return True
                    184: 
                    185: 
                    186: # ----------------------------
                    187: # helper functions for buttons
                    188: 
                    189: def create_button(label, cb, data = None):
                    190:     "create_button(label,cb[,data]) -> button widget"
                    191:     button = gtk.Button(label)
                    192:     if data == None:
                    193:         button.connect("clicked", cb)
                    194:     else:
                    195:         button.connect("clicked", cb, data)
                    196:     return button
                    197: 
                    198: def create_toolbutton(stock_id, cb, data = None):
                    199:     "create_toolbutton(stock_id,cb[,data]) -> toolbar button with stock icon+label"
                    200:     button = gtk.ToolButton(stock_id)
                    201:     if data == None:
                    202:         button.connect("clicked", cb)
                    203:     else:
                    204:         button.connect("clicked", cb, data)
                    205:     return button
                    206: 
                    207: def create_toggle(label, cb, data = None):
                    208:     "create_toggle(label,cb[,data]) -> toggle button widget"
                    209:     button = gtk.ToggleButton(label)
                    210:     if data == None:
                    211:         button.connect("toggled", cb)
                    212:     else:
                    213:         button.connect("toggled", cb, data)
                    214:     return button
                    215: 
                    216: 
                    217: # -----------------------------
                    218: # Table dialog helper functions
                    219: 
                    220: def create_table_dialog(parent, title, rows, cols, oktext = gtk.STOCK_APPLY):
                    221:     "create_table_dialog(parent,title,rows, cols, oktext) -> (table,dialog)"
                    222:     dialog = gtk.Dialog(title, parent,
                    223:         gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT,
                    224:         (oktext,  gtk.RESPONSE_APPLY,
                    225:         gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL))
                    226: 
                    227:     table = gtk.Table(rows, cols)
                    228:     table.set_data("col_offset", 0)
                    229:     table.set_col_spacings(8)
                    230:     dialog.vbox.add(table)
                    231:     return (table, dialog)
                    232: 
                    233: def table_set_col_offset(table, offset):
                    234:     "set column offset for successive table_* ops on given table"
                    235:     table.set_data("col_offset", offset)
                    236: 
                    237: def table_add_entry_row(table, row, label, size = None):
                    238:     "table_add_entry_row(table,row,label,[entry size]) -> entry"
                    239:     # add given label to given row in given table
                    240:     # return entry for that line
                    241:     label = gtk.Label(label)
                    242:     align = gtk.Alignment(1) # right aligned
                    243:     align.add(label)
                    244:     col = table.get_data("col_offset")
                    245:     table.attach(align, col, col+1, row, row+1, gtk.FILL)
                    246:     col += 1
                    247:     if size:
                    248:         entry = gtk.Entry(size)
                    249:         entry.set_width_chars(size)
                    250:         align = gtk.Alignment(0) # left aligned (default is centered)
                    251:         align.add(entry)
                    252:         table.attach(align, col, col+1, row, row+1)
                    253:     else:
                    254:         entry = gtk.Entry()
                    255:         table.attach(entry, col, col+1, row, row+1)
                    256:     return entry
                    257: 
                    258: def table_add_widget_row(table, row, label, widget, fullspan = False):
                    259:     "table_add_widget_row(table,row,label,widget) -> widget"
                    260:     # add given label right aligned to given row in given table
                    261:     # add given widget to the right column and returns it
                    262:     # return entry for that line
                    263:     if fullspan:
                    264:         col = 0
                    265:     else:
                    266:         col = table.get_data("col_offset")
                    267:     if label:
                    268:         label = gtk.Label(label)
                    269:         align = gtk.Alignment(1)
                    270:         align.add(label)
                    271:         table.attach(align, col, col+1, row, row+1, gtk.FILL)
                    272:     if fullspan:
                    273:         col = table.get_data("col_offset")
                    274:         table.attach(widget, 1, col+2, row, row+1)
                    275:     else:
                    276:         table.attach(widget, col+1, col+2, row, row+1)
                    277:     return widget
                    278: 
                    279: def table_add_radio_rows(table, row, label, texts, cb = None):
                    280:     "table_add_radio_rows(table,row,label,texts[,cb]) -> [radios]"
                    281:     # - add given label right aligned to given row in given table
                    282:     # - create/add radio buttons with given texts to next row, set
                    283:     #   the one given as "active" as active and set 'cb' as their
                    284:     #   "toggled" callback handler
                    285:     # - return array or radiobuttons
                    286:     label = gtk.Label(label)
                    287:     align = gtk.Alignment(1)
                    288:     align.add(label)
                    289:     col = table.get_data("col_offset")
                    290:     table.attach(align, col, col+1, row, row+1, gtk.FILL)
                    291: 
                    292:     radios = []
                    293:     radio = None
                    294:     box = gtk.VBox()
                    295:     for text in texts:
                    296:         radio = gtk.RadioButton(radio, text)
                    297:         if cb:
                    298:             radio.connect("toggled", cb, text)
                    299:         radios.append(radio)
                    300:         box.add(radio)
                    301:     table.attach(box, col+1, col+2, row, row+1)
                    302:     return radios
                    303: 
                    304: def table_add_separator(table, row):
                    305:     "table_add_separator(table,row)"
                    306:     widget = gtk.HSeparator()
                    307:     endcol = table.get_data("n-columns")
                    308:     # separator for whole table width
                    309:     table.attach(widget, 0, endcol, row, row+1, gtk.FILL)
                    310: 
                    311: 
                    312: # -----------------------------
                    313: # File selection helpers
                    314: 
                    315: def get_open_filename(title, parent, path = None):
                    316:     buttons = (gtk.STOCK_OK, gtk.RESPONSE_OK, gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
                    317:     fsel = gtk.FileChooserDialog(title, parent, gtk.FILE_CHOOSER_ACTION_OPEN, buttons)
                    318:     fsel.set_local_only(True)
                    319:     if path:
                    320:         fsel.set_filename(path)
                    321:     if fsel.run() == gtk.RESPONSE_OK:
                    322:         filename = fsel.get_filename()
                    323:     else:
                    324:         filename = None
                    325:     fsel.destroy()
                    326:     return filename
                    327: 
                    328: def get_save_filename(title, parent, path = None):
                    329:     buttons = (gtk.STOCK_OK, gtk.RESPONSE_OK, gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
                    330:     fsel = gtk.FileChooserDialog(title, parent, gtk.FILE_CHOOSER_ACTION_SAVE, buttons)
                    331:     fsel.set_local_only(True)
                    332:     fsel.set_do_overwrite_confirmation(True)
                    333:     if path:
                    334:         fsel.set_filename(path)
                    335:         if not os.path.exists(path):
                    336:             # above set only folder, this is needed to set
                    337:             # the file name when the file doesn't exist
                    338:             fsel.set_current_name(os.path.basename(path))
                    339:     if fsel.run() == gtk.RESPONSE_OK:
                    340:         filename = fsel.get_filename()
                    341:     else:
                    342:         filename = None
                    343:     fsel.destroy()
                    344:     return filename
                    345: 
                    346: # Gtk is braindead, there's no way to set a default filename
                    347: # for file chooser button unless it already exists
                    348: # - set_filename() works only for files that already exist
                    349: # - set_current_name() works only for SAVE action,
                    350: #   but file chooser button doesn't support that
                    351: # i.e. I had to do my own (less nice) container widget...
                    352: class FselEntry():
                    353:     def __init__(self, parent, validate = None, data = None):
                    354:         self._parent = parent
                    355:         self._validate = validate
                    356:         self._validate_data = data
                    357:         entry = gtk.Entry()
                    358:         entry.set_width_chars(12)
                    359:         entry.set_editable(False)
                    360:         hbox = gtk.HBox()
                    361:         hbox.add(entry)
                    362:         button = create_button("Select...", self._select_file_cb)
                    363:         hbox.pack_start(button, False, False)
                    364:         self._entry = entry
                    365:         self._hbox = hbox
                    366:     
                    367:     def _select_file_cb(self, widget):
                    368:         fname = self._entry.get_text()
                    369:         while True:
                    370:             fname = get_save_filename("Select file", self._parent, fname)
                    371:             if not fname:
                    372:                 # assume cancel
                    373:                 return
                    374:             if self._validate:
                    375:                 # filename needs validation and is valid?
                    376:                 if not self._validate(self._validate_data, fname):
                    377:                     continue
                    378:             self._entry.set_text(fname)
                    379:             return
                    380:     
                    381:     def set_filename(self, fname):
                    382:         self._entry.set_text(fname)
                    383:         
                    384:     def get_filename(self):
                    385:         return self._entry.get_text()
                    386: 
                    387:     def get_container(self):
                    388:         return self._hbox

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