diff options
Diffstat (limited to 'tutorius/propwidgets.py')
| -rw-r--r-- | tutorius/propwidgets.py | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/tutorius/propwidgets.py b/tutorius/propwidgets.py index 3debf98..0e6c200 100644 --- a/tutorius/propwidgets.py +++ b/tutorius/propwidgets.py @@ -24,6 +24,8 @@ from jarabe.journal.objectchooser import ObjectChooser from sugar.datastore.datastore import DSObject from sugar import mime import uuid +import tempfile +import os import logging LOGGER = logging.getLogger("sugar.tutorius.propwidgets") @@ -570,3 +572,111 @@ class ResourcePropWidget(PropWidget): """ raise RuntimeError('Cannot select a default resource') +class ScreenClipPropWidget(PropWidget): + """Allows adding and changing tutorial resources.""" + def _on_drag_end(self, widget, event, pixbuf): + from . import creator + widget.destroy() + + end_x, end_y = event.get_coords() + width = abs(end_x - self.start_x) + height = abs(end_y - self.start_y) + x_off = min(self.start_x, end_x) + y_off = min(self.start_y, end_y) + + cropped = pixbuf.subpixbuf(x_off, y_off, width, height) + + tmp_name = tempfile.mktemp(suffix='.png') + try: + cropped.save(tmp_name, 'png') + creator_obj = creator.default_creator() + resource_id = creator_obj.set_resource(self.obj_prop, tmp_name) + self.obj_prop = resource_id + finally: + os.unlink(tmp_name) + + self.notify() + + def _on_drag_start(self, widget, event, pixbuf): + widget.connect('button-release-event', self._on_drag_end, pixbuf) + widget.connect('motion-notify-event', self._on_drag_move, pixbuf) + self.start_x, self.start_y = event.get_coords() + + def _on_drag_move(self, widget, event, pixbuf): + if gtk.gdk.events_pending(): + return + + end_x, end_y = event.get_coords() + width = abs(end_x - self.start_x) + height = abs(end_y - self.start_y) + x_off = min(self.start_x, end_x) + y_off = min(self.start_y, end_y) + + ctx = widget.window.cairo_create() + ctx.set_source_pixbuf(pixbuf, 0, 0) + ctx.paint() + + ctx.set_source_rgb(0, 0, 0) + ctx.rectangle(x_off, y_off, width, height) + ctx.stroke() + + def _get_capture(self, widget): + """ + Select a resource and add it through the creator. + This is expected to run in the same process, alongside the creator. + """ + # take screen capture + root = gtk.gdk.get_default_root_window() + width, height = root.get_size() + pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, + width, height) + pixbuf.get_from_drawable(src=root, + cmap=gtk.gdk.colormap_get_system(), + src_x=0, src_y=0, + dest_x=0, dest_y=0, + width=width, height=height) + + win = gtk.Window() + image = gtk.Image() + image.set_from_pixbuf(pixbuf) + win.add(image) + win.show_all() + win.set_app_paintable(True) + win.fullscreen() + win.present() + win.add_events(gtk.gdk.BUTTON_PRESS_MASK | \ + gtk.gdk.BUTTON_RELEASE_MASK | \ + gtk.gdk.POINTER_MOTION_MASK) + win.connect('button-press-event', self._on_drag_start, pixbuf) + + def create_widget(self, init_value=None): + """ + Create the Edit Widget for a property + @param init_value initial value + @return gtk.Widget + """ + propwdg = gtk.Button("Clip Screen") + propwdg.connect_after("clicked", self._get_capture) + return propwdg + + def refresh_widget(self): + """ + Force the widget to update it's value in case the property has changed + """ + # Nothing to refresh + pass + + @classmethod + def run_dialog(cls, parent, obj_prop, propname): + """ + Class Method. + Prompts the user for changing an object's property + @param parent widget + @param obj_prop TPropContainer to edit + @param propname name of property to edit + """ + # TODO We're assuming all reasource creation is done from the creator + # and not from the probe since there is a requirement to know the guid + # to add resources. But for this resource type, this could technically + # be done in the probe. + raise RuntimeError('Cannot select a default resource') |