Author: duncan
Date: Thu Jun 14 20:44:15 2007
New Revision: 9697
Added:
branches/rel-1/freevo/src/skins/main/scrollabletext_area.py (contents,
props changed)
Modified:
branches/rel-1/freevo/share/skins/main/basic.fxd
branches/rel-1/freevo/src/skin.py
Log:
[ 1737454 ] Add scrollable text area to buttonbars program info
Part of this patch from Adam Charrett applied
Modified: branches/rel-1/freevo/share/skins/main/basic.fxd
==============================================================================
--- branches/rel-1/freevo/share/skins/main/basic.fxd (original)
+++ branches/rel-1/freevo/share/skins/main/basic.fxd Thu Jun 14 20:44:15 2007
@@ -823,13 +823,28 @@
<tvguideinfo>
<screen layout="screen" x="0" y="0" width="800" height="600"/>
- <title layout="tvguideinfo title" x="10" y="70" width="780"
height="80"/>
- <info layout="info" x="10" y="130" width="780" height="460"/>
+ <info layout="tvguideinfo program details" x="10" y="70"
width="780" height="80"/>
+ <scrollabletext layout="info" x="10" y="160" width="740" height="420 -
buttonbar_height">
+ <image x="758" y="160" width="32" height="32" label="uparrow"
filename="up.png"/>
+ <image x="758" y="max-32" width="32" height="32" label="downarrow"
filename="down.png"/>
+ </scrollabletext>
</tvguideinfo>
- <layout label="tvguideinfo title">
- <content x="0" y="0" type="menu" font="title area" align="left"
valign="center"/>
- </layout>
+ <layout label="tvguideinfo program details">
+ <content x="0" y="0" type="text" spacing="20" font="default">
+ <item type="default">
+ <if expression="time">
+ <text font="info font" align="right" width="max"
expression="time"/>
+ <newline/>
+ </if>
+ <if expression="title">
+ <text font="tv title" align="left" expression="title"/>
+ <newline/>
+ </if>
+ </item>
+ </content>
+ </layout>
+
</skin>
</freevo>
<!-- Keep this comment at the end of the file
Modified: branches/rel-1/freevo/src/skin.py
==============================================================================
--- branches/rel-1/freevo/src/skin.py (original)
+++ branches/rel-1/freevo/src/skin.py Thu Jun 14 20:44:15 2007
@@ -58,6 +58,134 @@
'prepare', 'draw' )
+class ScrollableText:
+ """
+ Container for scrolling text using the skin area "scrollabletext"
+ """
+ def __init__(self, text):
+ """
+ Initialise the scrollable text area with the text to scroll.
+ """
+ self.text = text
+ self.page = []
+ self.lines = []
+ self.max_lines = 1
+
+ def get_page(self):
+ """
+ Returns the page of text to display.
+ """
+ return self.page
+
+ def __get_line__(self, string, max_width, font, word_splitter, hard):
+ """
+ calculate _one_ line. Returns a list:
+ string to draw, rest that didn't fit and True if this
+ function stopped because of a \n.
+ """
+ c = 0 # num of chars fitting
+ width = 0 # width needed
+ ls = len(string)
+ space = 0 # position of last space
+ last_char_size = 0 # width of the last char
+ last_word_size = 0 # width of the last word
+
+ data = None
+ while(True):
+ if width > (max_width - 1):
+ # ok, that's it. We don't have any space left
+ break
+ if ls == c:
+ # everything fits
+ return (string, '', False)
+ if string[c] == '\n':
+ # linebreak, we have to stop
+ return (string[:c], string[c+1:], True)
+ if string[c] in word_splitter:
+ # rememeber the last space for mode == 'soft' (not hard)
+ space = c
+ last_word_size = 0
+
+ # add a char
+ last_char_size = font.charsize(string[c])
+ width += last_char_size
+ last_word_size += last_char_size
+ c += 1
+
+ rest_start = c
+
+ if not hard:
+ # go one word back, than it fits
+ c = space
+ if string[c] == ' ':
+ rest_start = c + 1
+
+ # calc the matching and rest string and return all this
+ return (string[:c], string[rest_start:], False)
+
+ def layout(self, width, height, font):
+ """
+ Layout the text into lines/pages based on the width,height and font
+ supplied.
+ """
+ self.first_line_index = 0
+ self.max_lines = height / font.height
+ self.lines = []
+ rest = self.text
+ while rest:
+ line, rest, nl = self.__get_line__(rest, width, font, ' ', False)
+ if not line and rest and not nl:
+ line, rest, nl = self.__get_line__(rest, width, font, ' -_',
False)
+ if not line and rest and not nl:
+ line, rest, nl = self.__get_line__(rest, width, font, '
-_', True)
+
+ self.lines.append(line)
+
+ self.build_page()
+
+
+ def build_page(self):
+ """
+ Create the page based on the first_line_index.
+ """
+ self.page = []
+ if self.first_line_index + self.max_lines >= len(self.lines):
+ self.page = self.lines[self.first_line_index:]
+ else:
+ end_line_index = self.first_line_index + self.max_lines
+ self.page = self.lines[self.first_line_index:end_line_index]
+
+ def more_lines_up(self):
+ """
+ Returns true if the first line of the page is not the top of text,
false
+ if we are at the top.
+ """
+ return self.first_line_index != 0
+
+ def more_lines_down(self):
+ """
+ Returns true if there are more lines below the bottom line of the
+ current page.
+ """
+ return self.first_line_index + self.max_lines < len(self.lines)
+
+ def scroll(self, up):
+ """
+ Scrolls the current page, up if 'up' is true or down if it is false, by
+ one line.
+ """
+ # The text is not larger than the area so no need to scroll.
+ if len(self.lines) <= self.max_lines:
+ return
+
+ if up:
+ self.first_line_index = max(0, self.first_line_index - 1)
+ else:
+ self.first_line_index = min(self.first_line_index + 1,
+ min(len(self.lines) - 1, len(self.lines) - self.max_lines))
+ self.build_page()
+
+
def get_singleton():
"""
Returns an initialized skin object, containing the users preferred
Added: branches/rel-1/freevo/src/skins/main/scrollabletext_area.py
==============================================================================
--- (empty file)
+++ branches/rel-1/freevo/src/skins/main/scrollabletext_area.py Thu Jun 14
20:44:15 2007
@@ -0,0 +1,102 @@
+# -*- coding: iso-8859-1 -*-
+# -----------------------------------------------------------------------
+# scrollabletext_area.py - A scrollable text area for the Freevo skin
+# -----------------------------------------------------------------------
+# $Id$
+#
+# Notes:
+# Todo:
+#
+# -----------------------------------------------------------------------
+# Freevo - A Home Theater PC framework
+# Copyright (C) 2002 Krister Lagerstrom, et al.
+# Please see the file freevo/Docs/CREDITS for a complete list of authors.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of MER-
+# CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+# Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# -----------------------------------------------------------------------
+
+
+import copy
+import types
+from area import Skin_Area
+from skin_utils import *
+from skin import eval_attr
+import config
+
+class Scrollabletext_Area(Skin_Area):
+ """
+ this call defines the listing area
+ """
+
+ def __init__(self):
+ Skin_Area.__init__(self, 'scrollabletext')
+ self.last_first_line = -1
+ self.scrollable_text = None
+
+
+ def update_content_needed(self):
+ """
+ check if the content needs an update
+ """
+ return True
+
+
+ def update_content(self):
+ """
+ update the listing area
+ """
+
+ menuw = self.menuw
+ settings = self.settings
+ layout = self.layout
+ area = self.area_val
+ content = self.calc_geometry(layout.content, copy_object=True)
+
+ if not hasattr(menuw, "scrollable_text"):
+ return
+
+ scrollable_text = menuw.scrollable_text
+
+ if self.scrollable_text != scrollable_text:
+
+ scrollable_text.layout(content.width, content.height,
content.font.font)
+ self.scrollable_text = scrollable_text
+
+ page = scrollable_text.get_page()
+
+ if not len(page):
+ return
+
+ y = 0
+ for line in page:
+ self.drawstring(line, content.font, content, content.x, content.y
+ y, mode='hard')
+ y += content.font.height
+
+ # print arrow:
+ try:
+ if scrollable_text.more_lines_up() and area.images['uparrow']:
+ self.drawimage(area.images['uparrow'].filename,
area.images['uparrow'])
+
+ if scrollable_text.more_lines_down() and area.images['downarrow']:
+ if isinstance(area.images['downarrow'].y, types.TupleType):
+ v = copy.copy(area.images['downarrow'])
+ v.y = eval_attr(v.y, content.y + content.height)
+ else:
+ v = area.images['downarrow']
+ self.drawimage(area.images['downarrow'].filename, v)
+ except:
+ # empty menu / missing images
+ pass
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