420 lines
16 KiB
Python
420 lines
16 KiB
Python
## plugins/whiteboard/whiteboard_widget.py
|
|
##
|
|
## Copyright (C) 2009 Jeff Ling <jeff.ummu AT gmail.com>
|
|
## Copyright (C) 2010 Yann Leboulanger <asterix AT lagaule.org>
|
|
##
|
|
## This file is part of Gajim.
|
|
##
|
|
## Gajim 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; version 3 only.
|
|
##
|
|
## Gajim 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 General Public License
|
|
## along with Gajim. If not, see <http://www.gnu.org/licenses/>.
|
|
##
|
|
|
|
import gtk
|
|
import gtkgui_helpers
|
|
try:
|
|
import goocanvas
|
|
HAS_GOOCANVAS = True
|
|
except:
|
|
HAS_GOOCANVAS = False
|
|
from common.xmpp import Node
|
|
from common import gajim
|
|
from common import i18n
|
|
from dialogs import FileChooserDialog
|
|
|
|
'''
|
|
A whiteboard widget made for Gajim.
|
|
- Ummu
|
|
'''
|
|
|
|
class Whiteboard(object):
|
|
def __init__(self, account, contact, session, plugin):
|
|
self.plugin = plugin
|
|
file_path = plugin.local_file_path('whiteboard_widget.ui')
|
|
xml = gtk.Builder()
|
|
xml.set_translation_domain(i18n.APP)
|
|
xml.add_from_file(file_path)
|
|
self.hbox = xml.get_object('whiteboard_hbox')
|
|
self.canevas = goocanvas.Canvas()
|
|
self.hbox.pack_start(self.canevas)
|
|
self.hbox.reorder_child(self.canevas, 0)
|
|
self.canevas.set_flags(gtk.CAN_FOCUS)
|
|
self.fg_color_select_button = xml.get_object('fg_color_button')
|
|
self.root = self.canevas.get_root_item()
|
|
self.tool_buttons = []
|
|
for tool in ('brush', 'oval', 'line', 'delete'):
|
|
self.tool_buttons.append(xml.get_object(tool + '_button'))
|
|
xml.get_object('brush_button').set_active(True)
|
|
|
|
# Events
|
|
self.canevas.connect('button-press-event', self.button_press_event)
|
|
self.canevas.connect('button-release-event', self.button_release_event)
|
|
self.canevas.connect('motion-notify-event', self.motion_notify_event)
|
|
self.canevas.connect('item-created', self.item_created)
|
|
|
|
# Config
|
|
self.line_width = 2
|
|
xml.get_object('size_scale').set_value(2)
|
|
self.color = str(self.fg_color_select_button.get_color())
|
|
|
|
# SVG Storage
|
|
self.image = SVGObject(self.root, session)
|
|
|
|
xml.connect_signals(self)
|
|
|
|
# Temporary Variables for items
|
|
self.item_temp = None
|
|
self.item_temp_coords = (0, 0)
|
|
self.item_data = None
|
|
|
|
# Will be {ID: {type:'element', data:[node, goocanvas]}, ID2: {}} instance
|
|
self.recieving = {}
|
|
|
|
def on_tool_button_toggled(self, widget):
|
|
for btn in self.tool_buttons:
|
|
if btn == widget:
|
|
continue
|
|
btn.set_active(False)
|
|
|
|
def on_brush_button_toggled(self, widget):
|
|
if widget.get_active():
|
|
self.image.draw_tool = 'brush'
|
|
self.on_tool_button_toggled(widget)
|
|
|
|
def on_oval_button_toggled(self, widget):
|
|
if widget.get_active():
|
|
self.image.draw_tool = 'oval'
|
|
self.on_tool_button_toggled(widget)
|
|
|
|
def on_line_button_toggled(self, widget):
|
|
if widget.get_active():
|
|
self.image.draw_tool = 'line'
|
|
self.on_tool_button_toggled(widget)
|
|
|
|
def on_delete_button_toggled(self, widget):
|
|
if widget.get_active():
|
|
self.image.draw_tool = 'delete'
|
|
self.on_tool_button_toggled(widget)
|
|
|
|
def on_clear_button_clicked(self, widget):
|
|
self.image.clear_canvas()
|
|
|
|
def on_export_button_clicked(self, widget):
|
|
SvgChooserDialog(self.image.export_svg)
|
|
|
|
def on_fg_color_button_color_set(self, widget):
|
|
self.color = str(self.fg_color_select_button.get_color())
|
|
|
|
def item_created(self, canvas, item, model):
|
|
print 'item created'
|
|
item.connect('button-press-event', self.item_button_press_events)
|
|
|
|
def item_button_press_events(self, item, target_item, event):
|
|
if self.image.draw_tool == 'delete':
|
|
self.image.del_item(item)
|
|
|
|
def on_size_scale_format_value(self, widget):
|
|
self.line_width = int(widget.get_value())
|
|
|
|
def button_press_event(self, widget, event):
|
|
x = event.x
|
|
y = event.y
|
|
state = event.state
|
|
self.item_temp_coords = (x, y)
|
|
|
|
if self.image.draw_tool == 'brush':
|
|
self.item_temp = goocanvas.Ellipse(parent=self.root,
|
|
center_x=x,
|
|
center_y=y,
|
|
radius_x=1,
|
|
radius_y=1,
|
|
stroke_color=self.color,
|
|
fill_color=self.color,
|
|
line_width=self.line_width)
|
|
self.item_data = 'M %s,%s L ' % (x, y)
|
|
|
|
elif self.image.draw_tool == 'oval':
|
|
self.item_data = True
|
|
|
|
if self.image.draw_tool == 'line':
|
|
self.item_data = 'M %s,%s L' % (x, y)
|
|
|
|
def motion_notify_event(self, widget, event):
|
|
x = event.x
|
|
y = event.y
|
|
state = event.state
|
|
if self.item_temp is not None:
|
|
self.item_temp.remove()
|
|
|
|
if self.item_data is not None:
|
|
if self.image.draw_tool == 'brush':
|
|
self.item_data = self.item_data + '%s,%s ' % (x, y)
|
|
self.item_temp = goocanvas.Path(parent=self.root,
|
|
data=self.item_data, line_width=self.line_width,
|
|
stroke_color=self.color)
|
|
elif self.image.draw_tool == 'oval':
|
|
self.item_temp = goocanvas.Ellipse(parent=self.root,
|
|
center_x=self.item_temp_coords[0] + (x - self.item_temp_coords[0]) / 2,
|
|
center_y=self.item_temp_coords[1] + (y - self.item_temp_coords[1]) / 2,
|
|
radius_x=abs(x - self.item_temp_coords[0]) / 2,
|
|
radius_y=abs(y - self.item_temp_coords[1]) / 2,
|
|
stroke_color=self.color,
|
|
line_width=self.line_width)
|
|
elif self.image.draw_tool == 'line':
|
|
self.item_data = 'M %s,%s L' % self.item_temp_coords
|
|
self.item_data = self.item_data + ' %s,%s' % (x, y)
|
|
self.item_temp = goocanvas.Path(parent=self.root,
|
|
data=self.item_data, line_width=self.line_width,
|
|
stroke_color=self.color)
|
|
|
|
def button_release_event(self, widget, event):
|
|
x = event.x
|
|
y = event.y
|
|
state = event.state
|
|
|
|
if self.image.draw_tool == 'brush':
|
|
self.item_data = self.item_data + '%s,%s' % (x, y)
|
|
if x == self.item_temp_coords[0] and y == self.item_temp_coords[1]:
|
|
goocanvas.Ellipse(parent=self.root,
|
|
center_x=x,
|
|
center_y=y,
|
|
radius_x=1,
|
|
radius_y=1,
|
|
stroke_color=self.color,
|
|
fill_color=self.color,
|
|
line_width=self.line_width)
|
|
self.image.add_path(self.item_data, self.line_width, self.color)
|
|
|
|
if self.image.draw_tool == 'oval':
|
|
cx = self.item_temp_coords[0] + (x - self.item_temp_coords[0]) / 2
|
|
cy = self.item_temp_coords[1] + (y - self.item_temp_coords[1]) / 2
|
|
rx = abs(x - self.item_temp_coords[0]) / 2
|
|
ry = abs(y - self.item_temp_coords[1]) / 2
|
|
self.image.add_ellipse(cx, cy, rx, ry, self.line_width, self.color)
|
|
|
|
if self.image.draw_tool == 'line':
|
|
self.item_data = 'M %s,%s L' % self.item_temp_coords
|
|
self.item_data = self.item_data + ' %s,%s' % (x, y)
|
|
if x == self.item_temp_coords[0] and y == self.item_temp_coords[1]:
|
|
goocanvas.Ellipse(parent=self.root,
|
|
center_x=x,
|
|
center_y=y,
|
|
radius_x=1,
|
|
radius_y=1,
|
|
stroke_color='black',
|
|
fill_color='black',
|
|
line_width=self.line_width)
|
|
self.image.add_path(self.item_data, self.line_width, self.color)
|
|
|
|
if self.image.draw_tool == 'delete':
|
|
pass
|
|
|
|
self.item_data = None
|
|
if self.item_temp is not None:
|
|
self.item_temp.remove()
|
|
self.item_temp = None
|
|
|
|
def recieve_element(self, element):
|
|
node = self.image.g.addChild(name=element.getAttr('name'))
|
|
self.image.g.addChild(node=node)
|
|
self.recieving[element.getAttr('rid')] = {'type':'element',
|
|
'data':[node],
|
|
'children':[]}
|
|
|
|
def recieve_attr(self, element):
|
|
node = self.recieving[element.getAttr('parent')]['data'][0]
|
|
node.setAttr(element.getAttr('name'), element.getAttr('chdata'))
|
|
|
|
self.recieving[element.getAttr('rid')] = {'type':'attr',
|
|
'data':element.getAttr('name'),
|
|
'parent':node}
|
|
self.recieving[element.getAttr('parent')]['children'].append(element.getAttr('rid'))
|
|
|
|
def apply_new(self):
|
|
for x in self.recieving.keys():
|
|
if self.recieving[x]['type'] == 'element':
|
|
self.image.add_recieved(x, self.recieving)
|
|
|
|
self.recieving = {}
|
|
|
|
class SvgChooserDialog(FileChooserDialog):
|
|
def __init__(self, on_response_ok=None, on_response_cancel=None):
|
|
'''
|
|
Choose in which SVG file to store the image
|
|
'''
|
|
def on_ok(widget, callback):
|
|
'''
|
|
check if file exists and call callback
|
|
'''
|
|
path_to_file = self.get_filename()
|
|
path_to_file = gtkgui_helpers.decode_filechooser_file_paths(
|
|
(path_to_file,))[0]
|
|
widget.destroy()
|
|
callback(path_to_file)
|
|
|
|
FileChooserDialog.__init__(self,
|
|
title_text=_('Save Image as...'),
|
|
action=gtk.FILE_CHOOSER_ACTION_SAVE,
|
|
buttons=(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL, gtk.STOCK_OPEN,
|
|
gtk.RESPONSE_OK),
|
|
current_folder='',
|
|
default_response=gtk.RESPONSE_OK,
|
|
on_response_ok=(on_ok, on_response_ok),
|
|
on_response_cancel=on_response_cancel)
|
|
|
|
filter_ = gtk.FileFilter()
|
|
filter_.set_name(_('All files'))
|
|
filter_.add_pattern('*')
|
|
self.add_filter(filter_)
|
|
|
|
filter_ = gtk.FileFilter()
|
|
filter_.set_name(_('SVG Files'))
|
|
filter_.add_pattern('*.svg')
|
|
self.add_filter(filter_)
|
|
self.set_filter(filter_)
|
|
|
|
|
|
class SVGObject():
|
|
''' A class to store the svg document and make changes to it.'''
|
|
|
|
def __init__(self, root, session, height=300, width=300):
|
|
# Will be {ID: {type:'element', data:[node, goocanvas]}, ID2: {}} instance
|
|
self.items = {}
|
|
self.root = root
|
|
self.draw_tool = 'brush'
|
|
|
|
# sxe session
|
|
self.session = session
|
|
|
|
# initialize svg document
|
|
self.svg = Node(node='<svg/>')
|
|
self.svg.setAttr('version', '1.1')
|
|
self.svg.setAttr('height', str(height))
|
|
self.svg.setAttr('width', str(width))
|
|
self.svg.setAttr('xmlns', 'http://www.w3.org/2000/svg')
|
|
# TODO: make this settable
|
|
self.g = self.svg.addChild(name='g')
|
|
self.g.setAttr('fill', 'none')
|
|
self.g.setAttr('stroke-linecap', 'round')
|
|
|
|
def add_path(self, data, line_width, color):
|
|
''' adds the path to the items listing, both minidom node and goocanvas
|
|
object in a tuple '''
|
|
|
|
goocanvas_obj = goocanvas.Path(parent=self.root, data=data,
|
|
line_width=line_width, stroke_color=color)
|
|
goocanvas_obj.connect('button-press-event', self.item_button_press_events)
|
|
|
|
node = self.g.addChild(name='path')
|
|
node.setAttr('d', data)
|
|
node.setAttr('stroke-width', str(line_width))
|
|
node.setAttr('stroke', color)
|
|
self.g.addChild(node=node)
|
|
|
|
rids = self.session.generate_rids(4)
|
|
self.items[rids[0]] = {'type':'element', 'data':[node, goocanvas_obj], 'children':rids[1:]}
|
|
self.items[rids[1]] = {'type':'attr', 'data':'d', 'parent':node}
|
|
self.items[rids[2]] = {'type':'attr', 'data':'stroke-width', 'parent':node}
|
|
self.items[rids[3]] = {'type':'attr', 'data':'stroke', 'parent':node}
|
|
|
|
self.session.send_items(self.items, rids)
|
|
|
|
def add_recieved(self, parent_rid, new_items):
|
|
''' adds the path to the items listing, both minidom node and goocanvas
|
|
object in a tuple '''
|
|
node = new_items[parent_rid]['data'][0]
|
|
|
|
self.items[parent_rid] = new_items[parent_rid]
|
|
for x in new_items[parent_rid]['children']:
|
|
self.items[x] = new_items[x]
|
|
|
|
if node.getName() == 'path':
|
|
goocanvas_obj = goocanvas.Path(parent=self.root,
|
|
data=node.getAttr('d'),
|
|
line_width=int(node.getAttr('stroke-width')),
|
|
stroke_color=node.getAttr('stroke'))
|
|
|
|
if node.getName() == 'ellipse':
|
|
goocanvas_obj = goocanvas.Ellipse(parent=self.root,
|
|
center_x=float(node.getAttr('cx')),
|
|
center_y=float(node.getAttr('cy')),
|
|
radius_x=float(node.getAttr('rx')),
|
|
radius_y=float(node.getAttr('ry')),
|
|
stroke_color=node.getAttr('stroke'),
|
|
line_width=float(node.getAttr('stroke-width')))
|
|
|
|
self.items[parent_rid]['data'].append(goocanvas_obj)
|
|
goocanvas_obj.connect('button-press-event', self.item_button_press_events)
|
|
|
|
def add_ellipse(self, cx, cy, rx, ry, line_width, stroke_color):
|
|
''' adds the ellipse to the items listing, both minidom node and goocanvas
|
|
object in a tuple '''
|
|
|
|
goocanvas_obj = goocanvas.Ellipse(parent=self.root,
|
|
center_x=cx,
|
|
center_y=cy,
|
|
radius_x=rx,
|
|
radius_y=ry,
|
|
stroke_color=stroke_color,
|
|
line_width=line_width)
|
|
goocanvas_obj.connect('button-press-event', self.item_button_press_events)
|
|
|
|
node = self.g.addChild(name='ellipse')
|
|
node.setAttr('cx', str(cx))
|
|
node.setAttr('cy', str(cy))
|
|
node.setAttr('rx', str(rx))
|
|
node.setAttr('ry', str(ry))
|
|
node.setAttr('stroke-width', str(line_width))
|
|
node.setAttr('stroke', stroke_color)
|
|
self.g.addChild(node=node)
|
|
|
|
rids = self.session.generate_rids(7)
|
|
self.items[rids[0]] = {'type':'element', 'data':[node, goocanvas_obj], 'children':rids[1:]}
|
|
self.items[rids[1]] = {'type':'attr', 'data':'cx', 'parent':node}
|
|
self.items[rids[2]] = {'type':'attr', 'data':'cy', 'parent':node}
|
|
self.items[rids[3]] = {'type':'attr', 'data':'rx', 'parent':node}
|
|
self.items[rids[4]] = {'type':'attr', 'data':'ry', 'parent':node}
|
|
self.items[rids[5]] = {'type':'attr', 'data':'stroke-width', 'parent':node}
|
|
self.items[rids[6]] = {'type':'attr', 'data':'stroke', 'parent':node}
|
|
|
|
self.session.send_items(self.items, rids)
|
|
|
|
def del_item(self, item):
|
|
rids = []
|
|
for x in self.items.keys():
|
|
if self.items[x]['type'] == 'element':
|
|
if self.items[x]['data'][1] == item:
|
|
for y in self.items[x]['children']:
|
|
rids.append(y)
|
|
self.del_rid(y)
|
|
rids.append(x)
|
|
self.del_rid(x)
|
|
break
|
|
self.session.del_item(rids)
|
|
|
|
def clear_canvas(self):
|
|
for x in self.items.keys():
|
|
if self.items[x]['type'] == 'element':
|
|
self.del_rid(x)
|
|
|
|
def del_rid(self, rid):
|
|
if self.items[rid]['type'] == 'element':
|
|
self.items[rid]['data'][1].remove()
|
|
del self.items[rid]
|
|
|
|
def export_svg(self, filename):
|
|
f = open(filename, 'w')
|
|
f.writelines(str(self.svg))
|
|
f.close()
|
|
|
|
def item_button_press_events(self, item, target_item, event):
|
|
self.del_item(item)
|