From f1d588452eac011f2a9217e90c6ab7af61667bbe Mon Sep 17 00:00:00 2001 From: Marco Pesenti Gritti Date: Sat, 25 Aug 2007 11:15:28 +0000 Subject: Reorganize canvas items. --- (limited to 'sugar') diff --git a/sugar/graphics/Makefile.am b/sugar/graphics/Makefile.am index 7fb63dc..8911b68 100644 --- a/sugar/graphics/Makefile.am +++ b/sugar/graphics/Makefile.am @@ -2,11 +2,9 @@ sugardir = $(pythondir)/sugar/graphics sugar_PYTHON = \ __init__.py \ animator.py \ - canvasbutton.py \ - canvasicon.py \ - canvasentry.py \ - canvasroundbox.py \ + button.py \ combobox.py \ + entry.py \ icon.py \ iconbutton.py \ iconentry.py \ @@ -17,6 +15,7 @@ sugar_PYTHON = \ palette.py \ palettegroup.py \ panel.py \ + roundbox.py \ spreadlayout.py \ style.py \ toggletoolbutton.py \ diff --git a/sugar/graphics/canvasbutton.py b/sugar/graphics/button.py index fc869f9..fc869f9 100644 --- a/sugar/graphics/canvasbutton.py +++ b/sugar/graphics/button.py diff --git a/sugar/graphics/canvasentry.py b/sugar/graphics/entry.py index 95510e5..95510e5 100644 --- a/sugar/graphics/canvasentry.py +++ b/sugar/graphics/entry.py diff --git a/sugar/graphics/icon.py b/sugar/graphics/icon.py index ff4e09a..13f6065 100644 --- a/sugar/graphics/icon.py +++ b/sugar/graphics/icon.py @@ -16,11 +16,20 @@ # Boston, MA 02111-1307, USA. import os +import re +import time +import logging + import gobject import gtk -import re +import hippo +import rsvg +import cairo from sugar.graphics.style import Color +from sugar.graphics.xocolor import XoColor +from sugar.graphics import style +from sugar.graphics.palette import Palette, CanvasInvoker class Icon(gtk.Image): __gtype_name__ = 'SugarIcon' @@ -152,3 +161,406 @@ class Icon(gtk.Image): return self._stroke_color else: return gtk.Image.do_get_property(self, pspec) + +_ICON_REQUEST_SIZE = 50 +_BADGE_SIZE = 0.45 + +class _IconCacheIcon: + def __init__(self, name, fill_color, stroke_color, now): + self.last_used = now + self.usage_count = 1 + self.badge_x = 1.0 - _BADGE_SIZE / 2 + self.badge_y = 1.0 - _BADGE_SIZE / 2 + + if name[0:6] == "theme:": + info = gtk.icon_theme_get_default().lookup_icon( + name[6:], _ICON_REQUEST_SIZE, 0) + if not info: + raise ValueError("Icon '" + name + "' not found.") + + fname = info.get_filename() + attach_points = info.get_attach_points() + if attach_points is not None: + self.badge_x = float(attach_points[0][0]) / _ICON_REQUEST_SIZE + self.badge_y = float(attach_points[0][1]) / _ICON_REQUEST_SIZE + del info + else: + fname = name + + self.handle = self._read_icon_data(fname, fill_color, stroke_color) + + def _read_icon_data(self, filename, fill_color, stroke_color): + icon_file = open(filename, 'r') + data = icon_file.read() + icon_file.close() + + if fill_color: + entity = '' % fill_color + data = re.sub('', entity, data) + + if stroke_color: + entity = '' % stroke_color + data = re.sub('', entity, data) + + self.data_size = len(data) + return rsvg.Handle(data=data) + +class _IconCache: + _CACHE_MAX = 50000 # in bytes + + def __init__(self): + self._icons = {} + self._cache_size = 0 + + def _cache_cleanup(self, key, now): + while self._cache_size > self._CACHE_MAX: + evict_key = None + oldest_key = None + oldest_time = now + for icon_key, icon in self._icons.items(): + # Don't evict the icon we are about to use if it's in the cache + if icon_key == key: + continue + + # evict large icons first + if icon.data_size > self._CACHE_MAX: + evict_key = icon_key + break + # evict older icons next; those used over 2 minutes ago + if icon.last_used < now - 120: + evict_key = icon_key + break + # otherwise, evict the oldest + if oldest_time > icon.last_used: + oldest_time = icon.last_used + oldest_key = icon_key + + # If there's nothing specific to evict, try evicting + # the oldest thing + if not evict_key: + if not oldest_key: + break + evict_key = oldest_key + + self._cache_size -= self._icons[evict_key].data_size + del self._icons[evict_key] + + def get_icon(self, name, fill_color, stroke_color): + if not name: + return None + + if fill_color or stroke_color: + key = (name, fill_color, stroke_color) + else: + key = name + + # If we're over the cache limit, evict something from the cache + now = time.time() + self._cache_cleanup(key, now) + + if self._icons.has_key(key): + icon = self._icons[key] + icon.usage_count += 1 + icon.last_used = now + else: + icon = _IconCacheIcon(name, fill_color, stroke_color, now) + self._icons[key] = icon + self._cache_size += icon.data_size + return icon + + +class CanvasIcon(hippo.CanvasBox, hippo.CanvasItem): + __gtype_name__ = 'CanvasIcon' + + __gproperties__ = { + 'icon-name' : (str, None, None, None, + gobject.PARAM_READWRITE), + 'xo-color' : (object, None, None, + gobject.PARAM_WRITABLE), + 'fill-color' : (object, None, None, + gobject.PARAM_READWRITE), + 'stroke-color' : (object, None, None, + gobject.PARAM_READWRITE), + 'size' : (int, None, None, 0, 1024, 0, + gobject.PARAM_READWRITE), + 'scale' : (int, None, None, 0, 1024, 0, + gobject.PARAM_READWRITE), + 'cache' : (bool, None, None, False, + gobject.PARAM_READWRITE), + 'active' : (bool, None, None, True, + gobject.PARAM_READWRITE), + 'badge-name' : (str, None, None, None, + gobject.PARAM_READWRITE) + } + + _cache = _IconCache() + + def __init__(self, **kwargs): + self._buffers = {} + self._cur_buffer = None + self._size = 0 + self._scale = 0 + self._fill_color = None + self._stroke_color = None + self._icon_name = None + self._cache = False + self._icon = None + self._active = True + self._palette = None + self._badge_name = None + self._badge_icon = None + + hippo.CanvasBox.__init__(self, **kwargs) + + self.connect_after('motion-notify-event', self._motion_notify_event_cb) + + def _clear_buffers(self): + icon_key = self._get_current_buffer_key(self._icon_name) + badge_key = None + if self._badge_name: + badge_key = self._get_current_buffer_key(self._badge_name) + for key in self._buffers.keys(): + if key != icon_key: + if not badge_key or (key != badge_key): + del self._buffers[key] + self._buffers = {} + + def do_set_property(self, pspec, value): + if pspec.name == 'icon-name': + if self._icon_name != value and not self._cache: + self._clear_buffers() + self._icon_name = value + self._icon = None + self.emit_paint_needed(0, 0, -1, -1) + elif pspec.name == 'xo-color': + self.props.fill_color = style.Color(value.get_fill_color()) + self.props.stroke_color = style.Color(value.get_stroke_color()) + elif pspec.name == 'fill-color': + if self._fill_color != value: + if not self._cache: + self._clear_buffers() + self._fill_color = value + self._icon = None + self._badge_icon = None + self.emit_paint_needed(0, 0, -1, -1) + elif pspec.name == 'stroke-color': + if self._stroke_color != value: + if not self._cache: + self._clear_buffers() + self._stroke_color = value + self._icon = None + self._badge_icon = None + self.emit_paint_needed(0, 0, -1, -1) + elif pspec.name == 'size': + if self._size != value and not self._cache: + self._clear_buffers() + self._size = value + self.emit_request_changed() + elif pspec.name == 'scale': + if self._scale != value and not self._cache: + self._clear_buffers() + self._scale = value + self.emit_request_changed() + elif pspec.name == 'cache': + self._cache = value + elif pspec.name == 'active': + if self._active != value: + if not self._cache: + self._clear_buffers() + self._active = value + self._icon = None + self.emit_paint_needed(0, 0, -1, -1) + elif pspec.name == 'badge-name': + if self._badge_name != value and not self._cache: + self._clear_buffers() + self._badge_name = value + self._badge_icon = None + self.emit_paint_needed(0, 0, -1, -1) + + def _choose_colors(self): + fill_color = None + stroke_color = None + if self._active: + if self._fill_color: + fill_color = self._fill_color.get_svg() + if self._stroke_color: + stroke_color = self._stroke_color.get_svg() + else: + stroke_color = color.ICON_STROKE_INACTIVE.get_svg() + if self._fill_color: + fill_color = self._fill_color.get_svg() + return [fill_color, stroke_color] + + def _get_icon_from_cache(self, name, icon): + if not icon: + cache = CanvasIcon._cache + + [fill_color, stroke_color] = self._choose_colors() + + icon = cache.get_icon(name, fill_color, stroke_color) + return icon + + def _get_icon(self): + self._icon = self._get_icon_from_cache(self._icon_name, self._icon) + return self._icon + + def _get_badge_icon(self): + self._badge_icon = self._get_icon_from_cache(self._badge_name, + self._badge_icon) + return self._badge_icon + + def _get_current_buffer_key(self, name): + [fill_color, stroke_color] = self._choose_colors() + return (name, fill_color, stroke_color, self._size) + + def do_get_property(self, pspec): + if pspec.name == 'size': + return self._size + elif pspec.name == 'icon-name': + return self._icon_name + elif pspec.name == 'fill-color': + return self._fill_color + elif pspec.name == 'stroke-color': + return self._stroke_color + elif pspec.name == 'cache': + return self._cache + elif pspec.name == 'active': + return self._active + elif pspec.name == 'badge-name': + return self._badge_name + elif pspec.name == 'scale': + return self._scale + + def _get_icon_size(self, icon): + if icon: + dimensions = icon.handle.get_dimension_data() + return int(dimensions[0]), int(dimensions[1]) + else: + return [0, 0] + + def _get_size(self, icon): + width, height = self._get_icon_size(icon) + if self._scale != 0: + width = int(width * self._scale) + height = int(height * self._scale) + elif self._size != 0: + width = height = self._size + + return [width, height] + + def _get_buffer(self, cr, name, icon, scale_factor=None): + """Return a cached cairo surface for the SVG icon, or if none exists, + create a new cairo surface with the right size.""" + buf = None + + key = self._get_current_buffer_key(name) + if self._buffers.has_key(key): + buf = self._buffers[key] + else: + [icon_w, icon_h] = self._get_icon_size(icon) + [target_w, target_h] = self._get_size(icon) + + if scale_factor: + target_w = int(target_w * scale_factor) + target_h = int(target_h * scale_factor) + + target = cr.get_target() + buf = target.create_similar(cairo.CONTENT_COLOR_ALPHA, + target_w, target_h) + ctx = cairo.Context(buf) + ctx.scale(float(target_w) / float(icon_w), + float(target_h) / float(icon_h)) + icon.handle.render_cairo(ctx) + + del ctx + self._buffers[key] = buf + + return buf + + def do_paint_below_children(self, cr, damaged_box): + icon = self._get_icon() + if icon is None: + return + + icon_buf = self._get_buffer(cr, self._icon_name, icon) + [width, height] = self.get_allocation() + icon_x = (width - icon_buf.get_width()) / 2 + icon_y = (height - icon_buf.get_height()) / 2 + + cr.set_source_surface(icon_buf, icon_x, icon_y) + cr.paint() + + if self._badge_name: + badge_icon = self._get_badge_icon() + if badge_icon: + badge_buf = self._get_buffer(cr, self._badge_name, badge_icon, _BADGE_SIZE) + badge_x = (icon_x + icon.badge_x * icon_buf.get_width() - + badge_buf.get_width() / 2) + badge_y = (icon_y + icon.badge_y * icon_buf.get_height() - + badge_buf.get_height() / 2) + cr.set_source_surface(badge_buf, badge_x, badge_y) + cr.paint() + + def do_get_content_width_request(self): + icon = self._get_icon() + [width, height] = self._get_size(icon) + if self._badge_name is not None: + # If the badge goes outside the bounding box, add space + # on *both* sides (to keep the main icon centered) + if icon.badge_x < 0.0: + width = int(width * 2 * (1.0 - icon.badge_x)) + elif icon.badge_x + _BADGE_SIZE > 1.0: + width = int(width * 2 * (icon.badge_x + _BADGE_SIZE - 1.0)) + return (width, width) + + def do_get_content_height_request(self, for_width): + icon = self._get_icon() + [width, height] = self._get_size(icon) + if self._badge_name is not None: + if icon.badge_y < 0.0: + height = int(height * 2 * (1.0 - icon.badge_y)) + elif icon.badge_y + _BADGE_SIZE > 1.0: + height = int(height * 2 * (icon.badge_y + _BADGE_SIZE - 1.0)) + return (height, height) + + def do_button_press_event(self, event): + self.emit_activated() + return True + + def _motion_notify_event_cb(self, button, event): + if event.detail == hippo.MOTION_DETAIL_ENTER: + self.prelight(True) + elif event.detail == hippo.MOTION_DETAIL_LEAVE: + self.prelight(False) + return False + + def prelight(self, enter): + """ + Override this method for adding prelighting behavior. + """ + pass + + def get_palette(self): + return self._palette + + def set_palette(self, palette): + self._palette = palette + if not self._palette.props.invoker: + self._palette.props.invoker = CanvasInvoker(self) + + def set_tooltip(self, text): + self.set_palette(Palette(text)) + + palette = property(get_palette, set_palette) + +def get_icon_state(base_name, perc): + step = 5 + strength = round(perc / step) * step + icon_theme = gtk.icon_theme_get_default() + + while strength <= 100: + icon_name = '%s-%03d' % (base_name, strength) + if icon_theme.has_icon(icon_name): + return 'theme:' + icon_name + + strength = strength + step diff --git a/sugar/graphics/iconbutton.py b/sugar/graphics/iconbutton.py index ba9fad8..6489b34 100644 --- a/sugar/graphics/iconbutton.py +++ b/sugar/graphics/iconbutton.py @@ -24,7 +24,7 @@ import sys import gobject import hippo -from sugar.graphics.canvasicon import CanvasIcon +from sugar.graphics.icon import CanvasIcon from sugar.graphics import style class IconButton(CanvasIcon, hippo.CanvasItem): diff --git a/sugar/graphics/objectchooser.py b/sugar/graphics/objectchooser.py index f929063..56a5a31 100644 --- a/sugar/graphics/objectchooser.py +++ b/sugar/graphics/objectchooser.py @@ -24,9 +24,9 @@ import hippo from sugar.activity.bundle import Bundle from sugar.date import Date from sugar.graphics import style -from sugar.graphics.canvasicon import CanvasIcon +from sugar.graphics.icon import CanvasIcon from sugar.graphics.xocolor import XoColor -from sugar.graphics.canvasroundbox import CanvasRoundBox +from sugar.graphics.roundbox import CanvasRoundBox from sugar.datastore import datastore from sugar import activity from sugar.objects import objecttype diff --git a/sugar/graphics/canvasroundbox.py b/sugar/graphics/roundbox.py index 51b9e7d..51b9e7d 100644 --- a/sugar/graphics/canvasroundbox.py +++ b/sugar/graphics/roundbox.py -- cgit v0.9.1