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Features/GTK3/Porting/Typing Turtle (view source)
Revision as of 11:22, 2 August 2012
, 11:22, 2 August 2012→Missing / problematic things
= Port to Cairo =
= Port to Cairo =
'''README''': before to port this activity to GTK3, we should port it to Cairo as the first step and then move to GTK3.
'''README''': before to port this activity to GTK3, we should port it to Cairo as the first step and then move to GTK3. Here is the [http://bugs.sugarlabs.org/attachment/ticket/3772/0001-Port-to-Cairo.2.patch PATCH]
== Code Snippets ==
== Code Snippets ==
cr.paint()
cr.paint()
= Code Snippets =
==== Gtk3 version ====
Gdk.cairo_set_source_pixbuf(cr, self.backgroundpixbuf, 0, 0)
cr.rectangle(x, 0, self.backgroundpixbuf.get_width(),
self.backgroundpixbuf.get_height())
cr.paint()
= Port to Gtk3 -> Code Snippets =
== Gtk.TextBuffer ==
== Gtk.TextBuffer ==
Every entry was a tuple of (keycode, group, level). Now, this is an object with those attributes.
Every entry was a tuple of (keycode, group, level). Now, this is an object with those attributes.
== GdkPixbuf.PixbufLoader ==
Change this:
pxb_loader = gtk.gdk.PixbufLoader(image_type='png')
by:
pxb_loader = GdkPixbuf.PixbufLoader.new_with_type('png')
== KEY_PRESS ==
This should be done by the '''pygi-convert.sh''' script.
gtk.gdk.KEY_PRESS
gtk.gdk.KEY_RELEASE
replaced by
Gdk.EventType.KEY_PRESS
Gdk.EventType.KEY_RELEASE
== Gdk.Keymap.translate_keyboard_state ==
* http://developer.gnome.org/gdk/stable/gdk-Keyboard-Handling.html#gdk-keymap-translate-keyboard-state
* http://www.pygtk.org/docs/pygtk/class-gdkkeymap.html#method-gdkkeymap--translate-keyboard-state
Old way:
t = self.keymap.translate_keyboard_state(key['key-scan'], self.active_state, self.active_group)
New way:
success, keyval, effective_group, level, consumed_modifiers = \
self.keymap.translate_keyboard_state(key['key-scan'], self.active_state,
self.active_group)
== 'expose-event' & 'draw' event ==
The new ''draw'' event that refers to the old ''expose-event'' into a Gtk.DrawingArea now receive the widget and the context instead the widget and the event:
''expose-event''
def expose_cb(self, area, event):
self.draw()
''draw'' event
def draw_cb(self, area, cr):
self.draw(cr)
= Notes =
= Notes =
state = gtk.gdk.device_get_core_pointer().get_state(self.window)[1]
state = gtk.gdk.device_get_core_pointer().get_state(self.window)[1]
* I used a HACK related to Pango fonts and DPI:
<pre>
# Set correct DPI for Rsvg and Screen
from gi.repository import PangoCairo
def _get_screen_dpi():
xft_dpi = Gtk.Settings.get_default().get_property('gtk-xft-dpi')
dpi = float(xft_dpi / 1024)
logging.debug('Setting dpi to: %f', dpi)
# HACK: if the DPI detected is 200.0 it seems we are on an XO, so
# we return 133 because the XO manage its resolution in a complex
# way. More information here:
# http://wiki.laptop.org/go/Display
if 200 == int(dpi):
return 133
return dpi
dpi = _get_screen_dpi()
font_map_default = PangoCairo.font_map_get_default()
font_map_default.set_resolution(dpi)
</pre>
= Missing / problematic things =
* [<span style="color: green;">SOLVED</span>] <del>This method, ''set_source_pixbuf'', is not available.</del>
* [<span style="color: green;">SOLVED</span>] <del>We should find the correct way to scale Left and Right hands that are drawn over the keyboard, because I just put values that I thought they were correct. We should calculate them according to the screen</del>
* [<span style="color: green;">SOLVED</span>] <del>PangoCairo fonts are not being drawn because of this: https://bugzilla.gnome.org/show_bug.cgi?id=680680</del>
* [<span style="color: green;">SOLVED</span>] <del>Font Scale is wrong: https://bugzilla.gnome.org/show_bug.cgi?id=680663</del>
* SHIFT and ALT GR keys do not show the correct keys
= Useful links =
= Useful links =