diff options
author | Frederic Back <fredericback@gmail.com> | 2006-09-22 13:40:20 +0000 |
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committer | Frederic Back <fredericback@gmail.com> | 2006-09-22 13:40:20 +0000 |
commit | 39a9e678c2bb3d8a93b1e86377d0d334c5306348 (patch) | |
tree | 50276cd4157da88c5a1f1e3a9ce0f5698e0e26c6 /src/fringlib | |
parent | e62c4666f06a4e1e9370c68ceefa21af43482f25 (diff) |
* Made a first python package
git-svn-id: file:///home/lennart/svn/public/fring/trunk@4 d0d2c35f-0a1e-0410-abeb-dabff30a67ee
Diffstat (limited to 'src/fringlib')
-rw-r--r-- | src/fringlib/__init__.py | 3 | ||||
-rw-r--r-- | src/fringlib/fringrenderer.py | 221 | ||||
-rw-r--r-- | src/fringlib/fringui.py | 276 | ||||
-rw-r--r-- | src/fringlib/fringwalker.py | 153 | ||||
-rwxr-xr-x | src/fringlib/launch.py | 38 |
5 files changed, 691 insertions, 0 deletions
diff --git a/src/fringlib/__init__.py b/src/fringlib/__init__.py new file mode 100644 index 0000000..d597d27 --- /dev/null +++ b/src/fringlib/__init__.py @@ -0,0 +1,3 @@ +from fringwalker import * +from fringrenderer import * +from fringui import * diff --git a/src/fringlib/fringrenderer.py b/src/fringlib/fringrenderer.py new file mode 100644 index 0000000..a0d5a4b --- /dev/null +++ b/src/fringlib/fringrenderer.py @@ -0,0 +1,221 @@ +import cairo +import pango +from math import * +from fringwalker import sum_list +import os + +class Hotspot: + + def __init__(self, minpos, maxpos, folder): + self.minx,self.miny = minpos + self.maxx,self.maxy = maxpos + self.folder = folder + + +class FringRenderer: + + def __init__(self): + self.MAX_LEVEL = 1 + self.WIDTH, HEIGHT = 1024, 768 + self.WIDTH, HEIGHT = 1024, 768 + self.INNER_RADIUS = 100 + self.RING_RADIUS = 60 + self.RING_SPACE = 0 + self.RINGS_MAX = 4 + self.LINE_WIDTH = .5 + self.LEG_LINE_WIDTH = 1 + + self.LABEL_UNTIL_RING = 0 + + self.hotspots = [] + + def prepare_layouts(self,ctx): + self.linklayout = ctx.create_layout() + self.linklayout.set_font_description(pango.FontDescription("sans 10")) + + def draw_segment(self,ctx, ring, start_angle, end_angle, start_hue, end_hue, data, previouspath=""): + + assert isinstance(data, sum_list) + + CENTERX, CENTERY = self.WIDTH/2, self.HEIGHT/2 + ctx.move_to(CENTERX, CENTERY) + + if ring == 0: + self._draw_centered_text(ctx, self._pretty_size(data.the_sum)) + + n = len(data.data) + i = 0 + + accumulated = 0 + last = start_angle + + for fn, d in data.data: + start = last + value = self._list_value(d) + accumulated += value + + end = start_angle+(end_angle - start_angle)*1.0*accumulated/data.the_sum + + if end-start >= .01: + + v = start_hue + (end_hue-start_hue)*1.0*i/n + color = self._choose_color(start_hue + (end_hue-start_hue)*1.0*i/n, ring) + + r = self.INNER_RADIUS + ring * (self.RING_RADIUS + self.RING_SPACE) + + ctx.move_to(CENTERX+r*cos(start*2*pi), CENTERY+r*sin(start*2*pi)) + ctx.arc(CENTERX, CENTERY, r+self.RING_RADIUS, start*2*pi, end*2*pi) + ctx.arc_negative(CENTERX, CENTERY, r, end*2*pi, start*2*pi) + ctx.close_path() + + ctx.set_line_width(self.LINE_WIDTH) + ctx.set_source_rgb(*color) + ctx.fill_preserve() + + ctx.set_source_rgb(0, 0, 0) + ctx.stroke() + + if isinstance(d, sum_list) and ring+1 < self.RINGS_MAX: + self.draw_segment(ctx, ring+1, start, end, v, + start_hue + (end_hue-start_hue)*1.0*(i+1)/n, d, + previouspath+os.sep+fn) + + r += self.RING_RADIUS/2 + middle = CENTERX+r*cos((start+end)*pi), CENTERY+r*sin((start+end)*pi) + + if ring <= 0: + ctx.move_to(*middle) + + leg_radius = self.INNER_RADIUS + (self.RINGS_MAX+1) * (self.RING_RADIUS + self.RING_SPACE) + leg_radius -= (self.RING_RADIUS + self.RING_SPACE) / 2 + + ctx.line_to(CENTERX+leg_radius*cos((start+end)*pi), CENTERY+leg_radius*sin((start+end)*pi)) + + if cos((start+end)*pi) >= 0: + x = self.WIDTH/2 + leg_radius + align_x = 1 + else: + x = self.WIDTH/2 - leg_radius + align_x = 0 + + # get line target point + y = CENTERY+leg_radius*sin((start+end)*pi) + xmod = 2*(align_x*2-1) + + # draw line + ctx.line_to(x, y) + ctx.set_source_rgb(.5, .5, .5) + ctx.set_line_width(self.LEG_LINE_WIDTH) + ctx.stroke() + + # write folder name and register a hotspot + ctx.move_to(x+xmod,y) + + # register a hotspot ONLY if directory + if isinstance(d, sum_list): + ctx.set_source_rgb(0,0,1) + width,height = self._draw_centered_text(ctx, fn, align_x) + link = previouspath+os.sep+fn + if align_x == 0: width *= -1 + self.__register_hotspot(link,x,y+(height/2),x+(width),y-(height/2)) + + else: + ctx.set_source_rgb(0.5,0.5,0.5) + width,height = self._draw_centered_text(ctx, fn, align_x) + + + if ring <= self.LABEL_UNTIL_RING: + ctx.move_to(*middle) + ctx.set_source_rgb(0, 0, 0) + + # write relative and absolute disk usage + self._draw_centered_text2(ctx, "%.0f%%" % ((end-start)*100), self._pretty_size(value)) + + last = end + i += 1 + + def get_hotspot_at(self,x,y): + for h in self.hotspots: + if x >= h.minx and x <= h.maxx and \ + y >= h.miny and y <= h.maxy: + return h.folder + + def __register_hotspot(self,folder,x0,y0,x1,y1): + if x1 < x0: x0,x1 = x1,x0 # swap + if y1 < y0: y0,y1 = y1,y0 + self.hotspots.append(Hotspot( (x0,y0), (x1,y1), folder )) + + + def hsv2rgb(self,h,s,v): + if s<=0: + return 255*v,255*v,255*v + + h=6.0*(h%1.0) + f=h-int(h) + p=int(255*v*(1.0-s)) + q=int(255*v*(1.0-(s*f))) + t=int(255*v*(1.0-(s*(1.0-f)))) + v=int(255*v) + + return ((v,t,p), + (q,v,p), + (p,v,t), + (p,q,v), + (t,p,v), + (v,p,q))[int(h)] + + def _list_value(self,l): + if isinstance(l, sum_list): + return l.the_sum + return l + + + def _pretty_size(self,size): + if size >= 1024*1024*1024: + return "%.1f GiB" % round(size/1024/1024/1024.0) + elif size >= 1024*1024: + return "%.1f MiB" % round(size/1024/1024.0) + elif size >= 1024: + return "%.1f KiB" % round(size/1024.0) + else: + return "%u B" % size + + + def _choose_color(self,v, ring): + color = self.hsv2rgb(v, .61, 1-ring*0.1) + return color[0]/256.0, color[1]/256.0, color[2]/256.0, + + + def _draw_centered_text(self,ctx, text, align_x = .5, align_y = .5): + try: text = unicode(text) + except: return + + self.linklayout.set_text(text) + width,height = self.linklayout.get_pixel_size() + ctx.rel_move_to(-width*(1-align_x), -height*align_y) + ctx.show_layout(self.linklayout) + return width,height + + + def _draw_centered_text2(self,ctx, text1, text2): + try: + text1 = unicode(text1) + text2 = unicode(text2) + except: return + + extents1 = ctx.text_extents(text1) + extents2 = ctx.text_extents(text2) + + h = max((extents1[3], extents2[3])) + + p = ctx.get_current_point() + ctx.rel_move_to(-extents1[2]/2, -1) + ctx.show_text(text1) + + ctx.move_to(*p) + ctx.rel_move_to(-extents2[2]/2, h+1) + ctx.show_text(text2) + + + + diff --git a/src/fringlib/fringui.py b/src/fringlib/fringui.py new file mode 100644 index 0000000..f6e231b --- /dev/null +++ b/src/fringlib/fringui.py @@ -0,0 +1,276 @@ +import gtk +import cairo +import sys +import os + +from fringwalker import FringWalker +from fringrenderer import FringRenderer + +GPL = """ +fring is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +fring is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License +along with fring; if not, write to the Free Software +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 +USA. +""" + +ui = """ +<ui> + + <menubar name="MenuBar"> + <menu action="FRing"> + <menuitem action="SelectFolder"/> + <menuitem action="OpenParent"/> + <menuitem action="Refresh"/> + <separator /> + <menuitem action="Save Image..."/> + <separator /> + <menuitem action="Quit"/> + </menu> + <menu action="View"> + <menuitem action="Show Hidden Files"/> + <separator /> + <menuitem action="Zoom In"/> + <menuitem action="Zoom Out"/> + </menu> + <menu action="Help"> + <menuitem action="About"/> + </menu> + </menubar> + + <toolbar name="Toolbar"> + </toolbar> + +</ui>""" + + +class UI( gtk.Window ): + + def __init__(self, path): + self.backgroundColour = (1,1,1) + self.data = None + self.zoomfactor = 1.0 + self.renderer = FringRenderer() + self.walker = FringWalker(); + + # create gui + gtk.Window.__init__(self) + self.set_title("fring"); + self.__init_gui(path) + + # walk directory + self.walker.connect("list-changed",self.__list_changed) + self.open_folder(path) + + + def __init_gui(self, path): + + # create menubar + uimanager = gtk.UIManager() + accelgroup = uimanager.get_accel_group() + self.add_accel_group(accelgroup) + ag_global = gtk.ActionGroup('ag_global') + ag_global.add_actions([ + ('FRing', None, "_Folder"), + ('View', None, "_View"), + ('Help', None, "_Help"), + ('OpenParent', gtk.STOCK_GO_UP, "Open _Parent", "<alt>Up", "Open the parent folder", self.open_parent), + ('SelectFolder', gtk.STOCK_OPEN, "_Open Folder...", None, "Open Folder...", self.__selectfolder), + ('Quit', gtk.STOCK_QUIT, "_Quit", None, "Quit", self.close), + ('Zoom In', gtk.STOCK_ZOOM_IN, "Zoom _In", "<ctrl>Up", "Zoom In", lambda w: self.zoom(w,0.2)), + ('Zoom Out', gtk.STOCK_ZOOM_OUT, "Zoom _Out", "<ctrl>Down", "Zoom Out", lambda w: self.zoom(w,-0.2)), + ('Save Image...', gtk.STOCK_SAVE_AS, "_Save Image...", None, "Save Image...", self.save_image), + ('Refresh', gtk.STOCK_REFRESH, "_Refresh Tree", "<ctrl>R", "Refresh Tree", lambda w: self.__set_path(self.path)), + ('About', gtk.STOCK_ABOUT, "_About", None, "About", self.about_dialog), + ]) + action = gtk.ToggleAction("Show Hidden Files", "Show Hidden Files", None, None) + action.connect("toggled",self.__hidden_files_toggled) + ag_global.add_action(action) + uimanager.insert_action_group(ag_global, 0) + uimanager.add_ui_from_string(ui) + menubar = uimanager.get_widget('/MenuBar') + menubar.show() + + # create toolbar + toolbar = gtk.HBox() + + b = gtk.Button() + img = gtk.image_new_from_stock(gtk.STOCK_GO_UP, gtk.ICON_SIZE_BUTTON) + b.set_property("image", img) + uimanager.get_action("/MenuBar/FRing/OpenParent").connect_proxy(b) + toolbar.pack_start( b, False ) + + b = gtk.FileChooserButton('Select a Folder') + b.set_action(gtk.FILE_CHOOSER_ACTION_SELECT_FOLDER) + b.connect("current-folder-changed", lambda w: self.__set_path(w.get_current_folder())) + toolbar.pack_start( b, True ) + self.filechooserbutton = b + + # create canvas + self.eventbox = gtk.EventBox() + self.image = gtk.Image() + self.eventbox.add(self.image) + self.eventbox.add_events( gtk.gdk.EXPOSURE_MASK + | gtk.gdk.LEAVE_NOTIFY_MASK + | gtk.gdk.BUTTON_PRESS_MASK + | gtk.gdk.POINTER_MOTION_MASK ) + self.eventbox.connect("scroll_event", self.__scroll_event) + self.eventbox.connect("button-press-event",self.__click_event) + self.eventbox.connect("motion-notify-event",self.__move_event) + + # aligh menubar, toolbar and canvas vertically + vbox = gtk.VBox(); + vbox.pack_start(menubar,False,False) + vbox.pack_start(toolbar,False,False) + f = gtk.Frame() + f.set_shadow_type(gtk.SHADOW_IN) + f.add(self.eventbox) + vbox.pack_start(f) + self.add(vbox) + + # show everything + # Note: With set_default_size, the image can't be downsized. + self.set_size_request(100,100) # minimum size, needed! + self.resize(500,350) + self.show_all() + self.__create_canvas() + self.eventbox.connect("size-allocate",self.__on_resize) + self.connect("delete_event", self.close) + + def open_folder(self,path): + print "open",path + # change folder by changing the chooser button + self.filechooserbutton.set_current_folder(path) + + def about_dialog(self,widget): + d = gtk.AboutDialog() + d.set_name("fring"); + d.set_license(GPL); + d.set_copyright("copyright 2006 Lennart Poettering, Frederic Back") + d.run() + d.destroy() + + def close(self,w=None,e=None): + self.walker.stop() + self.destroy() + gtk.main_quit() + + def open_parent(self,widget): + p = os.path.split(self.path) + p = os.path.join(p[:-1]) + self.open_folder(p[0]) + + def zoom(self,widget,factor): + self.zoomfactor += factor + if self.zoomfactor < 0: + self.zoomfactor = 0 + self.redraw() + + def redraw(self,widget=None): + # clear the canvas + self.ctx.rectangle(0,0,self.width,self.height) + self.ctx.set_source_rgb(*self.backgroundColour) + self.ctx.fill() + + # draw segments + if not self.data: return + self.renderer.WIDTH = self.width + self.renderer.HEIGHT = self.height + self.renderer.INNER_RADIUS = self.height/15 + self.renderer.RING_RADIUS = self.height/10 + #self.renderer.INNER_RADIUS *= self.zoomfactor + self.renderer.RING_RADIUS *= self.zoomfactor + self.renderer.RINGS_MAX = 3 + + self.renderer.LABEL_UNTIL_RING = int(self.zoomfactor - 0.4) + if self.zoomfactor < 0.8: self.renderer.LABEL_UNTIL_RING = -1 + + self.renderer.hotspots = [] + self.renderer.draw_segment(self.ctx, 0, 0, 1, 0, 1, self.data, self.path) + self.image.queue_draw() + + def save_image(self, widget=None): + d = gtk.FileChooserDialog("Save As...", + self.get_toplevel(), gtk.FILE_CHOOSER_ACTION_SAVE, + (gtk.STOCK_CANCEL,0,gtk.STOCK_OK,1), None) + d.set_current_name( self.data.name.replace(" ","_") + ".png" ) + r = d.run() + if r == 1: + #print d.get_uri() + pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB,True,8,self.width,self.height) + pixmap, mask = self.image.get_pixmap() + pixbuf.get_from_drawable(pixmap,pixmap.get_colormap(),0,0,0,0,-1,-1) + #pixbuf.save(d.get_filename(), "jpeg", {"quality":"100"}) + pixbuf.save(d.get_filename(), "png", {}) + d.destroy() + + #----------------------------------------------------------- private methods + + def __set_path(self,path): + """ Set a path and start parsing. Also used to refresh or reset. """ + self.path = path + self.walker.stop() + if path is None: return + self.walker.walk(path); + + def __selectfolder(self,widget): + """ Open a dialog to select a folder """ + d = gtk.FileChooserDialog(None, self, + gtk.FILE_CHOOSER_ACTION_SELECT_FOLDER, + (gtk.STOCK_CANCEL,0,gtk.STOCK_OK,1)) + if d.run() == 1: self.open_folder(d.get_current_folder()) + d.destroy() + + def __hidden_files_toggled(self,widget): + if self.walker.showhidden == widget.get_active(): return + self.walker.showhidden = widget.get_active() + self.__set_path(self.path) + + def __move_event(self, widget, event): + f = self.renderer.get_hotspot_at(event.x, event.y) + if f is None: + self.eventbox.window.set_cursor(None) #gtk.gdk.Cursor(gtk.gdk.CROSSHAIR)) + else: + self.eventbox.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.HAND1)) + + def __click_event(self, widget, event): + f = self.renderer.get_hotspot_at(event.x, event.y) + if f is not None: self.open_folder(f) + + def __scroll_event(self, widget, event): + if event.direction is gtk.gdk.SCROLL_UP: + self.zoom(widget, 0.2) + elif event.direction is gtk.gdk.SCROLL_DOWN: + self.zoom(widget, -0.2) + + def __create_canvas(self): + # create a new pixmap and cairo context + r = self.eventbox.get_allocation() + self.width, self.height = r.width, r.height + self.pixmap = gtk.gdk.Pixmap(self.window,r.width,r.height) + self.image.set_from_pixmap(self.pixmap,None) + self.ctx = self.pixmap.cairo_create() + self.renderer.prepare_layouts(self.ctx) + + def __list_changed(self,widget,data): + self.data = data + self.redraw() + #print data.name + + def __on_resize(self, widget, event): + r = self.eventbox.get_allocation() + if (r.width,r.height) != (self.width,self.height): + self.__create_canvas() + self.redraw() + + + diff --git a/src/fringlib/fringwalker.py b/src/fringlib/fringwalker.py new file mode 100644 index 0000000..274ea24 --- /dev/null +++ b/src/fringlib/fringwalker.py @@ -0,0 +1,153 @@ +import os, os.path, stat, sys + +import gobject, gtk +from threading import Thread +import time + +class sum_list: + data = [] + the_sum = 0 + name = None + + def __init__(self, l, name = None): + + self.data = list(l) + self.name = name + + for fn, i in self.data: + + if isinstance(i, sum_list): + self.the_sum += i.the_sum + else: + self.the_sum += i + + def __str__(self): + return self.name+": "+str(self.data) + + +class FringWalker( gobject.GObject ): + + __gsignals__ = { + 'list-changed': (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gobject.TYPE_PYOBJECT,)), + 'finished': (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gobject.TYPE_PYOBJECT,)), + 'progress': (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gobject.TYPE_INT,gobject.TYPE_INT)), + } + + def __init__(self): + gobject.GObject.__init__(self) + self.thread = None + self.stopsignal = False + self.showhidden = False + + def walk(self,path): + self.thread = Thread(None,self._parse,None,(path,)) + self.stopsignal = False + print "stard thread (%s)"%path + self.thread.start() + + + def stop(self): + if self.thread is None: + return + + if not self.thread.isAlive(): + self.thread = None + return + + self.stopsignal = True + print "stopping thread:" + #self.thread.join() + print "ok" + + + def _parse(self,path): + """ Parse the root directory """ + + l = [] + i = 0 + subdirectories = {} + + try: + for fn in os.listdir(path): + + if not self.showhidden and fn[0] == '.': continue + + try: p = os.path.join(path, fn) + except: continue + + s = os.lstat(p) + + if stat.S_ISDIR(s.st_mode): + subdirectories[i] = (fn,p); + l.append((fn, s.st_size)) + elif stat.S_ISREG(s.st_mode): + l.append((fn, s.st_size)) + + i += 1 + + except: + pass + + gtk.gdk.threads_enter() + self.emit("list-changed",sum_list(l, os.path.split(path)[-1])) + gtk.gdk.threads_leave() + + c = 0 + for n in subdirectories: + c += 1 + + # give gtk a breath to redraw + time.sleep(0.05) + + # walk subdirectory + fn,p = subdirectories[n] + l[n] = (fn, self._build_tree(p)); + if self.stopsignal: return + + # emit signals + gtk.gdk.threads_enter() + self.emit("progress",c,len(subdirectories)) + self.emit("list-changed",sum_list(l, os.path.split(path)[-1])) + gtk.gdk.threads_leave() + + + gtk.gdk.threads_enter() + self.emit("finished",sum_list(l, os.path.split(path)[-1])) + gtk.gdk.threads_leave() + + print "finished walking",path + + + def _build_tree(self,path): + """ Parse directories recursively """ + l = [] + try: + + # walk files in directory + subdirectories = [] + for fn in os.listdir(path): + + if self.stopsignal: return sum_list([]) + + if not self.showhidden and fn[0] == '.': continue + + try: p = os.path.join(path, fn) + except: continue + + s = os.lstat(p) + + if stat.S_ISDIR(s.st_mode): + subdirectories.append( (fn,p) ); + elif stat.S_ISREG(s.st_mode): + l.append((fn, s.st_size)) + + # add subdirectories after files + for fn,p in subdirectories: + l.append((fn, self._build_tree(p))) + if self.stopsignal: return sum_list([]) + + except: + pass + + return sum_list(l, os.path.split(path)[-1]) + diff --git a/src/fringlib/launch.py b/src/fringlib/launch.py new file mode 100755 index 0000000..8e3b107 --- /dev/null +++ b/src/fringlib/launch.py @@ -0,0 +1,38 @@ +#!/usr/bin/env python + +# $Id$ + +# fring is free software; you can redistribute it and/or modify +# it under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# fring is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with fring; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 +# USA. + +# Copyright Lennart Poettering, 2006 + +import sys, os +import gtk +import fringui + +if __name__ == "__main__": + + if len(sys.argv) >= 2: + tree_path = sys.argv[1] + else: + tree_path = os.path.expanduser("~") + + ui = fringui.UI(tree_path) + + gtk.gdk.threads_init() + gtk.gdk.threads_enter() + gtk.main() + gtk.gdk.threads_leave() |