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Port StIcon from MX framework to St framework

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Make StIcon compile and work in St.

Changes:

 * ::icon-type and st_icon_set_icon_type are added to allow
   specifying SYMBOLIC/FULLCOLOR for an icon.
 * Ability to set the icon name from the theme is removed; it
   wouldn't easily fit into our framework and two levels of
   abstraction between code and image doesn't seem that useful.
 * size CSS property is renamed from x-st-icon-size to icon-size
   to correspond to what we are doing elsewhere.
 * CSS and property based icon sizing are cleanly layered - if
   you set the icon-size property, the CSS size is ignored.
 * Add a simple JS test of StIcon.

https://bugzilla.gnome.org/show_bug.cgi?id=633865
This commit is contained in:
Owen W. Taylor 2010-10-31 16:02:24 -04:00
parent aed6375a2d
commit 439d7f036f
4 changed files with 213 additions and 138 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

286
src/st/st-icon.c
View File

@ -3,6 +3,7 @@
* st-icon.c: icon widget
*
* Copyright 2009, 2010 Intel Corporation.
* Copyright 2010 Red Hat, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU Lesser General Public License,
@ -25,10 +26,9 @@
* a stylesheet.
*/
#include "st-enum-types.h"
#include "st-icon.h"
#include "st-icon-theme.h"
#include "st-stylable.h"
#include "st-texture-cache.h"
#include "st-private.h"
enum
@ -36,14 +36,11 @@ enum
PROP_0,
PROP_ICON_NAME,
PROP_ICON_TYPE,
PROP_ICON_SIZE
};
static void st_stylable_iface_init (StStylableIface *iface);
G_DEFINE_TYPE_WITH_CODE (StIcon, st_icon, ST_TYPE_WIDGET,
G_IMPLEMENT_INTERFACE (ST_TYPE_STYLABLE,
st_stylable_iface_init))
G_DEFINE_TYPE (StIcon, st_icon, ST_TYPE_WIDGET)
#define ST_ICON_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), ST_TYPE_ICON, StIconPrivate))
@ -53,37 +50,17 @@ struct _StIconPrivate
ClutterActor *icon_texture;
gchar *icon_name;
gint icon_size;
StIconType icon_type;
gint prop_icon_size; /* icon size set as property */
gint theme_icon_size; /* icon size from theme node */
gint icon_size; /* icon size we are using */
};
static void st_icon_update (StIcon *icon);
static void st_icon_update_icon_size (StIcon *icon);
static void
st_stylable_iface_init (StStylableIface *iface)
{
static gboolean is_initialized = FALSE;
if (G_UNLIKELY (!is_initialized))
{
GParamSpec *pspec;
is_initialized = TRUE;
pspec = g_param_spec_string ("x-st-icon-name",
"Icon name",
"Icon name to load from the theme",
NULL,
G_PARAM_READWRITE);
st_stylable_iface_install_property (iface, ST_TYPE_ICON, pspec);
pspec = g_param_spec_int ("x-st-icon-size",
"Icon size",
"Size to use for icon",
-1, G_MAXINT, -1,
G_PARAM_READWRITE);
st_stylable_iface_install_property (iface, ST_TYPE_ICON, pspec);
}
}
#define DEFAULT_ICON_SIZE 48
#define DEFAULT_ICON_TYPE ST_ICON_SYMBOLIC
static void
st_icon_set_property (GObject *gobject,
@ -99,6 +76,10 @@ st_icon_set_property (GObject *gobject,
st_icon_set_icon_name (icon, g_value_get_string (value));
break;
case PROP_ICON_TYPE:
st_icon_set_icon_type (icon, g_value_get_enum (value));
break;
case PROP_ICON_SIZE:
st_icon_set_icon_size (icon, g_value_get_int (value));
break;
@ -123,6 +104,10 @@ st_icon_get_property (GObject *gobject,
g_value_set_string (value, st_icon_get_icon_name (icon));
break;
case PROP_ICON_TYPE:
g_value_set_enum (value, st_icon_get_icon_type (icon));
break;
case PROP_ICON_SIZE:
g_value_set_int (value, st_icon_get_icon_size (icon));
break;
@ -133,18 +118,9 @@ st_icon_get_property (GObject *gobject,
}
}
static void
st_icon_notify_theme_name_cb (StIconTheme *theme,
GParamSpec *pspec,
StIcon *self)
{
st_icon_update (self);
}
static void
st_icon_dispose (GObject *gobject)
{
StIconTheme *theme;
StIconPrivate *priv = ST_ICON (gobject)->priv;
if (priv->icon_texture)
@ -153,13 +129,6 @@ st_icon_dispose (GObject *gobject)
priv->icon_texture = NULL;
}
if ((theme = st_icon_theme_get_default ()))
{
g_signal_handlers_disconnect_by_func (st_icon_theme_get_default (),
st_icon_notify_theme_name_cb,
gobject);
}
G_OBJECT_CLASS (st_icon_parent_class)->dispose (gobject);
}
@ -169,10 +138,9 @@ st_icon_get_preferred_height (ClutterActor *actor,
gfloat *min_height_p,
gfloat *nat_height_p)
{
StPadding padding;
gfloat pref_height;
StIconPrivate *priv = ST_ICON (actor)->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
gfloat pref_height;
if (priv->icon_texture)
{
@ -189,14 +157,13 @@ st_icon_get_preferred_height (ClutterActor *actor,
else
pref_height = 0;
st_widget_get_padding (ST_WIDGET (actor), &padding);
pref_height += padding.top + padding.bottom;
if (min_height_p)
*min_height_p = pref_height;
if (nat_height_p)
*nat_height_p = pref_height;
st_theme_node_adjust_preferred_height (theme_node, min_height_p, nat_height_p);
}
static void
@ -205,10 +172,9 @@ st_icon_get_preferred_width (ClutterActor *actor,
gfloat *min_width_p,
gfloat *nat_width_p)
{
StPadding padding;
gfloat pref_width;
StIconPrivate *priv = ST_ICON (actor)->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
gfloat pref_width;
if (priv->icon_texture)
{
@ -225,14 +191,13 @@ st_icon_get_preferred_width (ClutterActor *actor,
else
pref_width = 0;
st_widget_get_padding (ST_WIDGET (actor), &padding);
pref_width += padding.left + padding.right;
if (min_width_p)
*min_width_p = pref_width;
if (nat_width_p)
*nat_width_p = pref_width;
st_theme_node_adjust_preferred_width (theme_node, min_width_p, nat_width_p);
}
static void
@ -241,21 +206,16 @@ st_icon_allocate (ClutterActor *actor,
ClutterAllocationFlags flags)
{
StIconPrivate *priv = ST_ICON (actor)->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
CLUTTER_ACTOR_CLASS (st_icon_parent_class)->allocate (actor, box, flags);
if (priv->icon_texture)
{
StPadding padding;
ClutterActorBox child_box;
ClutterActorBox content_box;
st_widget_get_padding (ST_WIDGET (actor), &padding);
child_box.x1 = padding.left;
child_box.y1 = padding.top;
child_box.x2 = box->x2 - box->x1 - padding.right;
child_box.y2 = box->y2 - box->y1 - padding.bottom;
clutter_actor_allocate (priv->icon_texture, &child_box, flags);
st_theme_node_get_content_box (theme_node, box, &content_box);
clutter_actor_allocate (priv->icon_texture, &content_box, flags);
}
}
@ -293,6 +253,17 @@ st_icon_unmap (ClutterActor *actor)
clutter_actor_unmap (priv->icon_texture);
}
static void
st_icon_style_changed (StWidget *widget)
{
StIcon *self = ST_ICON (widget);
StThemeNode *theme_node = st_widget_get_theme_node (widget);
StIconPrivate *priv = self->priv;
priv->theme_icon_size = st_theme_node_get_length (theme_node, "icon-size");
st_icon_update_icon_size (self);
}
static void
st_icon_class_init (StIconClass *klass)
{
@ -300,6 +271,7 @@ st_icon_class_init (StIconClass *klass)
GObjectClass *object_class = G_OBJECT_CLASS (klass);
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
StWidgetClass *widget_class = ST_WIDGET_CLASS (klass);
g_type_class_add_private (klass, sizeof (StIconPrivate));
@ -314,20 +286,40 @@ st_icon_class_init (StIconClass *klass)
actor_class->map = st_icon_map;
actor_class->unmap = st_icon_unmap;
widget_class->style_changed = st_icon_style_changed;
pspec = g_param_spec_string ("icon-name",
"Icon name",
"An icon name",
NULL, ST_PARAM_READWRITE);
g_object_class_install_property (object_class, PROP_ICON_NAME, pspec);
pspec = g_param_spec_enum ("icon-type",
"Icon type",
"The type of icon that should be used",
ST_TYPE_ICON_TYPE,
DEFAULT_ICON_TYPE,
ST_PARAM_READWRITE);
g_object_class_install_property (object_class, PROP_ICON_TYPE, pspec);
pspec = g_param_spec_int ("icon-size",
"Icon size",
"Size of the icon",
1, G_MAXINT, 48,
"The size if the icon, if positive. Otherwise the size will be derived from the current style",
-1, G_MAXINT, -1,
ST_PARAM_READWRITE);
g_object_class_install_property (object_class, PROP_ICON_SIZE, pspec);
}
static void
st_icon_init (StIcon *self)
{
self->priv = ST_ICON_GET_PRIVATE (self);
self->priv->icon_size = DEFAULT_ICON_SIZE;
self->priv->prop_icon_size = -1;
self->priv->icon_type = DEFAULT_ICON_TYPE;
}
static void
st_icon_update (StIcon *icon)
{
@ -343,15 +335,11 @@ st_icon_update (StIcon *icon)
/* Try to lookup the new one */
if (priv->icon_name)
{
StIconTheme *theme = st_icon_theme_get_default ();
priv->icon_texture = (ClutterActor *)
st_icon_theme_lookup_texture (theme, priv->icon_name, priv->icon_size);
StTextureCache *cache = st_texture_cache_get_default ();
/* If the icon is missing, use the image-missing icon */
if (!priv->icon_texture)
priv->icon_texture = (ClutterActor *)
st_icon_theme_lookup_texture (theme,
"image-missing",
priv->icon_texture = st_texture_cache_load_icon_name (cache,
priv->icon_name,
priv->icon_type,
priv->icon_size);
if (priv->icon_texture)
@ -362,58 +350,23 @@ st_icon_update (StIcon *icon)
}
static void
st_icon_style_changed_cb (StWidget *widget)
st_icon_update_icon_size (StIcon *icon)
{
StIcon *self = ST_ICON (widget);
StIconPrivate *priv = self->priv;
StIconPrivate *priv = icon->priv;
int new_size;
gboolean changed = FALSE;
gchar *icon_name = NULL;
gint icon_size = -1;
if (priv->prop_icon_size > 0)
new_size = priv->prop_icon_size;
else if (priv->theme_icon_size > 0)
new_size = priv->theme_icon_size;
else
new_size = DEFAULT_ICON_SIZE;
st_stylable_get (ST_STYLABLE (widget),
"x-st-icon-name", &icon_name,
"x-st-icon-size", &icon_size,
NULL);
if (icon_name && (!priv->icon_name ||
!g_str_equal (icon_name, priv->icon_name)))
if (new_size != priv->icon_size)
{
g_free (priv->icon_name);
priv->icon_name = g_strdup (icon_name);
changed = TRUE;
g_object_notify (G_OBJECT (self), "icon-name");
priv->icon_size = new_size;
st_icon_update (icon);
}
if ((icon_size > 0) && (priv->icon_size != icon_size))
{
priv->icon_size = icon_size;
changed = TRUE;
g_object_notify (G_OBJECT (self), "icon-size");
}
if (changed)
st_icon_update (self);
}
static void
st_icon_init (StIcon *self)
{
self->priv = ST_ICON_GET_PRIVATE (self);
self->priv->icon_size = 48;
g_signal_connect (self, "style-changed",
G_CALLBACK (st_icon_style_changed_cb), NULL);
/* make sure we are not reactive */
clutter_actor_set_reactive (CLUTTER_ACTOR (self), FALSE);
/* Reload the icon when the theme changes */
g_signal_connect (st_icon_theme_get_default (), "notify::theme-name",
G_CALLBACK (st_icon_notify_theme_name_cb), self);
}
/**
@ -429,7 +382,6 @@ st_icon_new (void)
return g_object_new (ST_TYPE_ICON, NULL);
}
const gchar *
st_icon_get_icon_name (StIcon *icon)
{
@ -460,13 +412,77 @@ st_icon_set_icon_name (StIcon *icon,
g_object_notify (G_OBJECT (icon), "icon-name");
}
/**
* st_icon_get_icon_type:
* @icon: a #StIcon
*
* Gets the type of icon we'll look up to display in the actor.
* See st_icon_set_icon_type().
*
* Return value: the icon type.
*/
StIconType
st_icon_get_icon_type (StIcon *icon)
{
g_return_val_if_fail (ST_IS_ICON (icon), DEFAULT_ICON_TYPE);
return icon->priv->icon_type;
}
/**
* st_icon_set_icon_type:
* @icon: a #StIcon
* @icon_type: the type of icon to use
*
* Sets the type of icon we'll look up to display in the actor.
* The icon type determines whether we use a symbolic icon or
* a full color icon and also is used for specific handling for
* application and document icons.
*/
void
st_icon_set_icon_type (StIcon *icon,
StIconType icon_type)
{
StIconPrivate *priv;
g_return_if_fail (ST_IS_ICON (icon));
priv = icon->priv;
if (icon_type == priv->icon_type)
return;
priv->icon_type = icon_type;
st_icon_update (icon);
g_object_notify (G_OBJECT (icon), "icon-type");
}
/**
* st_icon_get_icon_size:
* @icon: an icon
*
* Gets the size explicit size on the icon. This is not necesariily
* the size that the icon will actually be displayed at.
*
* Return value: the size explicitly set, or -1 if no size has been set
*/
gint
st_icon_get_icon_size (StIcon *icon)
{
g_return_val_if_fail (ST_IS_ICON (icon), -1);
return icon->priv->icon_size;
return icon->priv->prop_icon_size;
}
/**
* st_icon_set_icon_size:
* @icon: an icon
* @size: if positive, the new size, otherwise the size will be
* derived from the current style
*
* Sets an explicit size for the icon.
*/
void
st_icon_set_icon_size (StIcon *icon,
gint size)
@ -474,13 +490,13 @@ st_icon_set_icon_size (StIcon *icon,
StIconPrivate *priv;
g_return_if_fail (ST_IS_ICON (icon));
g_return_if_fail (size > 0);
priv = icon->priv;
if (priv->icon_size != size)
if (priv->prop_icon_size != size)
{
priv->icon_size = size;
st_icon_update (icon);
priv->prop_icon_size = size;
st_icon_update_icon_size (icon);
g_object_notify (G_OBJECT (icon), "icon-size");
}
}

7
src/st/st-icon.h
View File

@ -29,7 +29,9 @@
#define _ST_ICON
#include <glib-object.h>
#include "st-widget.h"
#include <st/st-widget.h>
#include <st/st-types.h>
G_BEGIN_DECLS
@ -85,6 +87,9 @@ ClutterActor* st_icon_new (void);
const gchar *st_icon_get_icon_name (StIcon *icon);
void st_icon_set_icon_name (StIcon *icon, const gchar *icon_name);
void st_icon_set_icon_type (StIcon *icon, StIconType icon_type);
StIconType st_icon_get_icon_type (StIcon *icon);
gint st_icon_get_icon_size (StIcon *icon);
void st_icon_set_icon_size (StIcon *icon, gint size);

1
tests/Makefile.am
View File

@ -8,6 +8,7 @@ TEST_JS = \
interactive/calendar.js \
interactive/css-fonts.js \
interactive/entry.js \
interactive/icons.js \
interactive/inline-style.js \
interactive/scrolling.js \
interactive/scroll-view-sizing.js \

53
tests/interactive/icons.js Normal file
View File

@ -0,0 +1,53 @@
/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
const Clutter = imports.gi.Clutter;
const St = imports.gi.St;
const UI = imports.testcommon.ui;
UI.init();
let stage = Clutter.Stage.get_default();
let b = new St.BoxLayout({ vertical: true,
width: stage.width,
height: stage.height });
stage.add_actor(b);
function addTest(label, icon_props) {
if (b.get_children().length > 0)
b.add (new St.BoxLayout({ style: 'background: #cccccc; border: 10px transparent white; height: 1px; ' }));
let hb = new St.BoxLayout({ vertical: false });
hb.add(new St.Label({ text: label }));
hb.add(new St.Icon(icon_props));
b.add(hb);
}
addTest("Symbolic",
{ icon_name: 'zoom-in',
icon_type: St.IconType.SYMBOLIC,
icon_size: 48 });
addTest("Full color",
{ icon_name: 'zoom-in',
icon_type: St.IconType.FULLCOLOR,
icon_size: 48 });
addTest("Default size",
{ icon_name: 'zoom-in',
icon_type: St.IconType.SYMBOLIC });
addTest("Size set by property",
{ icon_name: 'zoom-in',
icon_type: St.IconType.SYMBOLIC,
icon_size: 32 });
addTest("Size set by style",
{ icon_name: 'zoom-in',
icon_type: St.IconType.SYMBOLIC,
style: 'icon-size: 1em;' });
addTest("16px icon in 48px icon widget",
{ icon_name: 'zoom-in',
icon_type: St.IconType.SYMBOLIC,
style: 'icon-size: 16px; width: 48px; height: 48px;' });
stage.show();
Clutter.main();