Commit Graph

169 Commits

Author SHA1 Message Date
Florian Müllner
2b15f38730 Pick up change from gradient to solid background
On style changes from gradient to solid backgrounds, the new background
must be drawn unconditionally, not depending on whether old and new
background color differ.

https://bugzilla.gnome.org/show_bug.cgi?id=608914
2010-02-03 21:16:40 +01:00
Florian Müllner
3e19f41cba [StWidget] Limit gradient redraws to size changes
When moving a widget with a gradient, its allocation changes
continuously, resulting in constant redraws.
Checking for actual size changes before the operation avoids
unnecessary redraws.

https://bugzilla.gnome.org/show_bug.cgi?id=608715
2010-02-02 00:24:35 +01:00
Florian Müllner
59d6029f47 Implement radial gradients for StWidget
Some theme authors have stated interest in radial gradient backgrounds.
The w3c has some draft:

http://dev.w3.org/csswg/css3-images/#radial-gradients

As this is rather complex, we add only some very basic support, which
extends our syntax for linear gradients:

background-gradient-direction: [vertical|horizontal|radial]

Gradients are centered circles, whose size is determined by the closest
side.

https://bugzilla.gnome.org/show_bug.cgi?id=604945
2010-01-11 23:38:34 +01:00
Florian Müllner
7486c09fbb Change handling of gradients
Some changes to the way we handle CSS gradients:

 * draw without padding, thus interpreting gradients as part of the
   background rather than as content

 * clip to (rounded) border area

 * draw the border along the gradient instead of trying to align the
   gradient layer with the background/border layer

 * use the border_image actor instead of the background_image one

https://bugzilla.gnome.org/show_bug.cgi?id=606257
2010-01-11 23:38:34 +01:00
Florian Müllner
2dfe113a42 Implement -st-shadow for StWidget
Add support for a new -st-shadow property, which is based loosely
on the CSS3 box-shadow property:
http://www.css3.info/preview/box-shadow/

It defers from the specification as follows:

 * no multiple shadows
 * the optional color argument may be placed anywhere
 * the shape is not determined by the widget's bounding box,
   but by the background-image property

https://bugzilla.gnome.org/show_bug.cgi?id=603691
2010-01-05 21:48:09 +01:00
Colin Walters
7b9f5b7643 Implement gradients for StWidget
Rather than having gradients be individually implemented by higher
level JS widgets, move basic gradient functionality into StWidget.
There is prior art in WebKit for CSS gradients:

http://webkit.org/blog/175/introducing-css-gradients/

However, implementing this would be quite a lot of work; all we
need in the Shell design at the moment is basic horizontal/vertical
linear gradients.  So, the syntax now supported is:

background-gradient-type: [vertical|horizontal]
background-gradient-start: color;
background-gradient-end: color;

https://bugzilla.gnome.org/show_bug.cgi?id=602131
2009-11-20 19:51:41 -05:00
Abderrahim Kitouni
a5edc78fac [StWidget] add API support for right-to-left UI
https://bugzilla.gnome.org/show_bug.cgi?id=584662
2009-11-16 11:46:09 -05:00
Colin Walters
4f456b9689 Implement non-uniform borders (when not using corner_radius)
StTheme CSS supports different border widths for different sides.  Implement
it for StWidget by drawing the border internally.  However, we don't support
a nonzero corner-radius with nonuniform borders.

https://bugzilla.gnome.org/show_bug.cgi?id=599442
2009-11-04 16:47:17 -05:00
Colin Walters
37a948e4eb Add missing allow-none for set_style_pseudo_class
https://bugzilla.gnome.org/show_bug.cgi?id=599442
2009-11-04 16:47:17 -05:00
Owen W. Taylor
400326e549 Add docs and (transfer none) to st_widget_get_theme_node()
st_widget_get_theme_node() was missing the (transfer none)
GObject Introspection causing crashes. Add that and document the
function.
2009-10-07 14:26:14 -04:00
Siegfried-Angel Gevatter Pujals
243824ab80 Replace "round(x)" with "(int)(0.5 + x)"
round() is a C99 addition, so causes portability problems:
different C library versions require different #defines to
enable it. So simply avoid using it.
2009-10-01 22:39:04 +02:00
Owen W. Taylor
4d55ccff39 Rename StThemeImage to StBorderImage
The current CSS3 border-image is close to a superset of what we were
doing for -hippo-background-image. Woot! rename StThemeImage to
StBorderImage and change parsing to look for:

 border-image: <url> <number>...

Rather than

 -st-background-image: <url> <length>...

percentanges for the border sizes are not currently supported, neither
are the keywords for handling of the middle part. We always do 'stretch'
for now.

https://bugzilla.gnome.org/show_bug.cgi?id=595990
2009-10-01 14:41:19 -04:00
Owen W. Taylor
2a0adc0fc8 Add support for colored borders
Use BigRectangle to draw the border and background if there's
a border width or border radius and no border image. (Only
uniform borders are supported for now with some deviations
from the CSS model noted in the comments.)

The background color and image parameters are removed from
StWidget's draw_background() method since they were not used
for StButton (the only current user) and the encapsulation
break that they presented caused some minor problems.

Add a test case for borders, and also use borders to style
the buttons in the 'inline-style' test case.

https://bugzilla.gnome.org/show_bug.cgi?id=595993
2009-10-01 14:41:19 -04:00
Owen W. Taylor
076e902b2c Centralize computations of border and padding into StThemeNode
Rather than repeating the computation of borders in many different
widget subclasses, add helper functions:

 st_theme_node_adjust_for_height()
 st_theme_node_adjust_preferred_width()
 st_theme_node_adjust_for_width()
 st_theme_node_adjust_preferred_height()
 st_theme_node_get_content_box()

That are used in get_preferred_width()/get_preferred_height() and
allocate() methods to consistently apply the necessary adjustments.
This allows removing the StPadding type.

Queueing a relayout when the borders/padding change is moved from
st_widget_real_style_changed() to the invoking code to allow access
to the old StThemeNode for comparison. (Should this be added as
a parameter to the signal?)

Borders are included in the geometry adjustments, but borders
are not yet drawn.

https://bugzilla.gnome.org/show_bug.cgi?id=595993
2009-10-01 14:41:19 -04:00
Owen W. Taylor
6527dbc8b7 Add support for inline styles
Add support for passing an inline-style string when creating a
StThemeNode.

Hook this up to a new 'style' property of StWidget.

Add a test case that demonstrates using this to update font sizes
on the fly.

https://bugzilla.gnome.org/show_bug.cgi?id=595991
2009-10-01 14:41:18 -04:00
Owen W. Taylor
a9fd350396 Port our imported parts of Mx to ShellTheme
ShellTheme replaces both StStyle and ccss_stylesheet_t.

The interface StStylable is replaced by usage of ShellThemeNode.
A concrete node class allows some significant optimizations of property
inheritance that would have been much more difficult to achieve with
the highly abstract pair of StStylable and ccss_node_t.

Some operations that were previously on StStylable (like the
::style-changed signal) are directly on NtkWidget.

Custom properties are no longer registered as param-specs; instead you
call directly into shell theme node to look up a length or color:

shell_theme_node_get_length (theme_node, "border-spacing", FALSE, &spacing);

The dependency on libccss is dropped, while preserving all existing
functionality and adding proper parsing and inheritance of font properties
and proper inheritance for the 'color' property.

Some more javascript tests for CSS functionality are added; workarounds for
a CSS bug where *.some-class was needed instead of .some-class are removed.

https://bugzilla.gnome.org/show_bug.cgi?id=595990
2009-10-01 14:41:18 -04:00
Owen W. Taylor
e91e8e993d Add emacs mode-lines to ST sources
To each .c and .h file, add:

 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */

'gnu' is the default anyways for Emacs, but indent-tabs-mode is not,
so this sets things up to correspond to the policy of no-tabs.

http://bugzilla.moblin.org/show_bug.cgi?id=6467
2009-10-01 14:41:18 -04:00
Owen W. Taylor
83402957bb Add GObject Introspection annotations
Add GObject Introspection annotations to methods where needed, in
particular adding (transfer none) to return values that don't transfer
ownership.

st_texture_cache_get_actor() and st_texture_cache_get_texture()
are annotated as (transfer none) since they return a newly
created *floating* texture.

https://bugzilla.gnome.org/show_bug.cgi?id=591245
2009-10-01 14:41:17 -04:00
Owen W. Taylor
d291e568fd Import Mx core as ST
Import the core MxWidget/MxBin and their dependencies; we use the
namespace "St" (Shell Toolkit) because it is the same length as Mx
so enabling easy sharing of code, but makes it clear that this is
a friendly fork and not a literal import.

Based on a patch by Colin Walters <walters@verbum.org>

https://bugzilla.gnome.org/show_bug.cgi?id=591245
2009-10-01 14:41:16 -04:00