changeset d97926068f3c in /home/hg/repos/gajim
details:http://hg.gajim.org/gajim?cmd=changeset;node=d97926068f3c
description: Now there is valid SVG produced
diffstat:
src/whiteboardwidget.py | 142 +++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 142 insertions(+), 0 deletions(-)
diffs (146 lines):
diff -r a6060b725966 -r d97926068f3c src/whiteboardwidget.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/whiteboardwidget.py Thu Jun 25 22:43:44 2009 -0700
@@ -0,0 +1,142 @@
+import gtk
+import goocanvas
+from xml.dom.minidom import Document
+
+"""
+A whiteboard widget made for Gajim. Only has basic line tool that draws
+SVG Paths.
+- Ummu
+"""
+
+class Whiteboard(goocanvas.Canvas):
+ def __init__(self):
+ goocanvas.Canvas.__init__(self)
+ self.set_flags(gtk.CAN_FOCUS)
+ self.root = self.get_root_item()
+
+ # Events
+ self.connect("button-press-event", self.button_press_event)
+ self.connect("button-release-event", self.button_release_event)
+ self.connect("motion-notify-event", self.motion_notify_event)
+ self.connect("key-press-event", self.key_press_event)
+
+ # Config
+ self.draw_tool = 'brush'
+ self.line_width = 3
+
+ # SVG Storage
+ #TODO: get height width info
+ self.image = SVGObject(self.root)
+
+ # Temporary Variables for items
+ self.item_temp = None
+ self.item_data = None
+
+
+
+ def button_press_event(self, widget, event):
+ x = event.x
+ y = event.y
+ state = event.state
+
+ if self.draw_tool == 'brush':
+ self.item_data = 'M %s,%s L ' % (x, y)
+ self.item_temp = goocanvas.Path(parent = self.root,
+ data = self.item_data + 'z',
+ line_width = self.line_width)
+ self.request_update()
+
+ 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.draw_tool == 'brush':
+ if self.item_data is not None:
+ 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)
+
+ def button_release_event(self, widget, event):
+ x = event.x
+ y = event.y
+ state = event.state
+
+ if self.draw_tool == 'brush':
+ self.item_data = self.item_data + '%s,%s' % (x, y)
+ self.image.add_path(self.item_data, self.line_width)
+
+ self.item_data = None
+ if self.item_temp is not None:
+ self.item_temp.remove()
+ self.item_temp = None
+
+ def key_press_event(self, widget, event):
+ print 'test'
+ if event.keyval == 'p':
+ self.image.print_xml()
+
+class SVGObject():
+ ''' A class to store the svg document and make changes to it.
+ Stores items in a tuple that's (minidom node, goocanvas object).'''
+
+ def __init__(self, root, height = 1000, width = 1000):
+ self.items = []
+ self.root = root
+
+ # initialize svg document
+ self.doc = Document()
+ self.svg = self.doc.createElement('svg')
+ self.svg.setAttribute('version', '1.1')
+ self.svg.setAttribute('height', str(height))
+ self.svg.setAttribute('width', str(width))
+ self.svg.setAttribute('xmlns', 'http://www.w3.org/2000/svg')
+ self.doc.appendChild(self.svg)
+ #TODO: make this settable
+ self.g = self.doc.createElement('g')
+ self.g.setAttribute('fill', 'none')
+ self.g.setAttribute('stroke-linecap', 'round')
+ self.svg.appendChild(self.g)
+
+ def add_path(self, data, line_width):
+ ''' adds the path to the items listing, both minidom node and goocanvas
+ object in a tuple '''
+
+ goocanvas_obj = self.items.append(goocanvas.Path(parent = self.root,
+ data = data,
+ line_width = line_width))
+
+ minidom_obj = self.doc.createElement('path')
+ minidom_obj.setAttribute('d', data)
+ minidom_obj.setAttribute('stroke-width', str(line_width))
+ minidom_obj.setAttribute('stroke', 'black')
+ self.g.appendChild(minidom_obj)
+
+ self.items.append((minidom_obj, goocanvas_obj))
+ self.print_xml()
+
+ def print_xml(self):
+ file = open('whiteboardtest.svg','w')
+ file.writelines(self.doc.toprettyxml(' '))
+ file.close()
+
+
+def main():
+ window = gtk.Window()
+ window.set_events(gtk.gdk.EXPOSURE_MASK
+ | gtk.gdk.LEAVE_NOTIFY_MASK
+ | gtk.gdk.BUTTON_PRESS_MASK
+ | gtk.gdk.POINTER_MOTION_MASK
+ | gtk.gdk.KEY_PRESS_MASK)
+ board = Whiteboard()
+ window.add(board)
+ window.connect("destroy", gtk.main_quit)
+ window.show_all()
+
+ gtk.main()
+
+if __name__ == "__main__":
+ main()
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