gtk2/gtk/deprecated/gtkthemingengine.c

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/* GTK - The GIMP Toolkit
* Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <math.h>
#include <gtk/gtk.h>
#include <gtk/gtkstylecontext.h>
#include <gtk/gtkintl.h>
#include "gtkprivate.h"
#include "gtkmodulesprivate.h"
#include "gtkpango.h"
#include "gtkrenderprivate.h"
#include "gtkstylecontextprivate.h"
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
/**
* SECTION:gtkthemingengine
* @Short_description: Theming renderers
* @Title: GtkThemingEngine
* @See_also: #GtkStyleContext
*
* #GtkThemingEngine was the object used for rendering themed content
* in GTK+ widgets. It used to allow overriding GTK+'s default
* implementation of rendering functions by allowing engines to be
* loaded as modules.
*
* #GtkThemingEngine has been deprecated in GTK+ 3.14 and will be
* ignored for rendering. The advancements in CSS theming are good
* enough to allow themers to achieve their goals without the need
* to modify source code.
*/
enum {
PROP_0,
PROP_NAME
};
struct GtkThemingEnginePrivate
{
GtkStyleContext *context;
gchar *name;
};
static void gtk_theming_engine_finalize (GObject *object);
static void gtk_theming_engine_impl_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_theming_engine_impl_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_theming_engine_render_check (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
static void gtk_theming_engine_render_option (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
static void gtk_theming_engine_render_arrow (GtkThemingEngine *engine,
cairo_t *cr,
gdouble angle,
gdouble x,
gdouble y,
gdouble size);
static void gtk_theming_engine_render_background (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
static void gtk_theming_engine_render_frame (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
static void gtk_theming_engine_render_expander (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
static void gtk_theming_engine_render_focus (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
static void gtk_theming_engine_render_layout (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
PangoLayout *layout);
static void gtk_theming_engine_render_line (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x0,
gdouble y0,
gdouble x1,
gdouble y1);
static void gtk_theming_engine_render_slider (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
GtkOrientation orientation);
static void gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
GtkPositionType gap_side,
gdouble xy0_gap,
gdouble xy1_gap);
static void gtk_theming_engine_render_extension (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
GtkPositionType gap_side);
static void gtk_theming_engine_render_handle (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
static void gtk_theming_engine_render_activity (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
static GdkPixbuf * gtk_theming_engine_render_icon_pixbuf (GtkThemingEngine *engine,
const GtkIconSource *source,
GtkIconSize size);
static void gtk_theming_engine_render_icon (GtkThemingEngine *engine,
cairo_t *cr,
GdkPixbuf *pixbuf,
gdouble x,
gdouble y);
static void gtk_theming_engine_render_icon_surface (GtkThemingEngine *engine,
cairo_t *cr,
cairo_surface_t *surface,
gdouble x,
gdouble y);
G_DEFINE_TYPE_WITH_PRIVATE (GtkThemingEngine, gtk_theming_engine, G_TYPE_OBJECT)
typedef struct GtkThemingModule GtkThemingModule;
typedef struct GtkThemingModuleClass GtkThemingModuleClass;
struct GtkThemingModule
{
GTypeModule parent_instance;
GModule *module;
gchar *name;
void (*init) (GTypeModule *module);
void (*exit) (void);
GtkThemingEngine * (*create_engine) (void);
};
struct GtkThemingModuleClass
{
GTypeModuleClass parent_class;
};
#define GTK_TYPE_THEMING_MODULE (gtk_theming_module_get_type ())
#define GTK_THEMING_MODULE(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GTK_TYPE_THEMING_MODULE, GtkThemingModule))
#define GTK_IS_THEMING_MODULE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GTK_TYPE_THEMING_MODULE))
_GDK_EXTERN
GType gtk_theming_module_get_type (void);
G_DEFINE_TYPE (GtkThemingModule, gtk_theming_module, G_TYPE_TYPE_MODULE);
static void
gtk_theming_engine_class_init (GtkThemingEngineClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gtk_theming_engine_finalize;
object_class->set_property = gtk_theming_engine_impl_set_property;
object_class->get_property = gtk_theming_engine_impl_get_property;
klass->render_icon = gtk_theming_engine_render_icon;
klass->render_check = gtk_theming_engine_render_check;
klass->render_option = gtk_theming_engine_render_option;
klass->render_arrow = gtk_theming_engine_render_arrow;
klass->render_background = gtk_theming_engine_render_background;
klass->render_frame = gtk_theming_engine_render_frame;
klass->render_expander = gtk_theming_engine_render_expander;
klass->render_focus = gtk_theming_engine_render_focus;
klass->render_layout = gtk_theming_engine_render_layout;
klass->render_line = gtk_theming_engine_render_line;
klass->render_slider = gtk_theming_engine_render_slider;
klass->render_frame_gap = gtk_theming_engine_render_frame_gap;
klass->render_extension = gtk_theming_engine_render_extension;
klass->render_handle = gtk_theming_engine_render_handle;
klass->render_activity = gtk_theming_engine_render_activity;
klass->render_icon_pixbuf = gtk_theming_engine_render_icon_pixbuf;
klass->render_icon_surface = gtk_theming_engine_render_icon_surface;
/**
* GtkThemingEngine:name:
*
* The theming engine name, this name will be used when registering
* custom properties, for a theming engine named "Clearlooks" registering
* a "glossy" custom property, it could be referenced in the CSS file as
*
* |[
* -Clearlooks-glossy: true;
* ]|
*
* Since: 3.0
*/
g_object_class_install_property (object_class,
PROP_NAME,
g_param_spec_string ("name",
P_("Name"),
P_("Theming engine name"),
NULL,
G_PARAM_CONSTRUCT_ONLY | GTK_PARAM_READWRITE));
}
static void
gtk_theming_engine_init (GtkThemingEngine *engine)
{
engine->priv = gtk_theming_engine_get_instance_private (engine);
}
static void
gtk_theming_engine_finalize (GObject *object)
{
GtkThemingEnginePrivate *priv;
priv = GTK_THEMING_ENGINE (object)->priv;
g_free (priv->name);
G_OBJECT_CLASS (gtk_theming_engine_parent_class)->finalize (object);
}
static void
gtk_theming_engine_impl_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkThemingEnginePrivate *priv;
priv = GTK_THEMING_ENGINE (object)->priv;
switch (prop_id)
{
case PROP_NAME:
g_free (priv->name);
priv->name = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_theming_engine_impl_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkThemingEnginePrivate *priv;
priv = GTK_THEMING_ENGINE (object)->priv;
switch (prop_id)
{
case PROP_NAME:
g_value_set_string (value, priv->name);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/**
* gtk_theming_engine_get_property:
* @engine: a #GtkThemingEngine
* @property: the property name
* @state: state to retrieve the value for
* @value: (out) (transfer full): return location for the property value,
* you must free this memory using g_value_unset() once you are
* done with it.
*
* Gets a property value as retrieved from the style settings that apply
* to the currently rendered element.
*
* Since: 3.0
*
* Deprecated: 3.14
**/
void
gtk_theming_engine_get_property (GtkThemingEngine *engine,
const gchar *property,
GtkStateFlags state,
GValue *value)
{
GtkThemingEnginePrivate *priv;
g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
g_return_if_fail (property != NULL);
g_return_if_fail (value != NULL);
priv = engine->priv;
gtk_style_context_get_property (priv->context, property, state, value);
}
/**
* gtk_theming_engine_get_valist:
* @engine: a #GtkThemingEngine
* @state: state to retrieve values for
* @args: va_list of property name/return location pairs, followed by %NULL
*
* Retrieves several style property values that apply to the currently
* rendered element.
*
* Since: 3.0
*
* Deprecated: 3.14
**/
void
gtk_theming_engine_get_valist (GtkThemingEngine *engine,
GtkStateFlags state,
va_list args)
{
GtkThemingEnginePrivate *priv;
g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
priv = engine->priv;
gtk_style_context_get_valist (priv->context, state, args);
}
/**
* gtk_theming_engine_get:
* @engine: a #GtkThemingEngine
* @state: state to retrieve values for
* @...: property name /return value pairs, followed by %NULL
*
* Retrieves several style property values that apply to the currently
* rendered element.
*
* Since: 3.0
*
* Deprecated: 3.14
**/
void
gtk_theming_engine_get (GtkThemingEngine *engine,
GtkStateFlags state,
...)
{
GtkThemingEnginePrivate *priv;
va_list args;
g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
priv = engine->priv;
va_start (args, state);
gtk_style_context_get_valist (priv->context, state, args);
va_end (args);
}
/**
* gtk_theming_engine_get_style_property:
* @engine: a #GtkThemingEngine
* @property_name: the name of the widget style property
* @value: (out): Return location for the property value, free with
* g_value_unset() after use.
*
* Gets the value for a widget style property.
*
* Since: 3.0
*
* Deprecated: 3.14
**/
void
gtk_theming_engine_get_style_property (GtkThemingEngine *engine,
const gchar *property_name,
GValue *value)
{
GtkThemingEnginePrivate *priv;
g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
g_return_if_fail (property_name != NULL);
priv = engine->priv;
gtk_style_context_get_style_property (priv->context, property_name, value);
}
/**
* gtk_theming_engine_get_style_valist:
* @engine: a #GtkThemingEngine
* @args: va_list of property name/return location pairs, followed by %NULL
*
* Retrieves several widget style properties from @engine according to the
* currently rendered contents style.
*
* Since: 3.0
*
* Deprecated: 3.14
**/
void
gtk_theming_engine_get_style_valist (GtkThemingEngine *engine,
va_list args)
{
GtkThemingEnginePrivate *priv;
g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
priv = engine->priv;
gtk_style_context_get_style_valist (priv->context, args);
}
/**
* gtk_theming_engine_get_style:
* @engine: a #GtkThemingEngine
* @...: property name /return value pairs, followed by %NULL
*
* Retrieves several widget style properties from @engine according
* to the currently rendered contents style.
*
* Since: 3.0
*
* Deprecated: 3.14
**/
void
gtk_theming_engine_get_style (GtkThemingEngine *engine,
...)
{
GtkThemingEnginePrivate *priv;
va_list args;
g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
priv = engine->priv;
va_start (args, engine);
gtk_style_context_get_style_valist (priv->context, args);
va_end (args);
}
/**
* gtk_theming_engine_lookup_color:
* @engine: a #GtkThemingEngine
* @color_name: color name to lookup
* @color: (out): Return location for the looked up color
*
* Looks up and resolves a color name in the current styles color map.
*
* Returns: %TRUE if @color_name was found and resolved, %FALSE otherwise
*
* Since: 3.0
*
* Deprecated: 3.14
**/
gboolean
gtk_theming_engine_lookup_color (GtkThemingEngine *engine,
const gchar *color_name,
GdkRGBA *color)
{
GtkThemingEnginePrivate *priv;
g_return_val_if_fail (GTK_IS_THEMING_ENGINE (engine), FALSE);
g_return_val_if_fail (color_name != NULL, FALSE);
priv = engine->priv;
return gtk_style_context_lookup_color (priv->context, color_name, color);
}
/**
* gtk_theming_engine_get_state:
* @engine: a #GtkThemingEngine
*
* returns the state used when rendering.
*
* Returns: the state flags
*
* Since: 3.0
*
* Deprecated: 3.14
**/
GtkStateFlags
gtk_theming_engine_get_state (GtkThemingEngine *engine)
{
GtkThemingEnginePrivate *priv;
g_return_val_if_fail (GTK_IS_THEMING_ENGINE (engine), 0);
priv = engine->priv;
return gtk_style_context_get_state (priv->context);
}
/**
* gtk_theming_engine_state_is_running:
* @engine: a #GtkThemingEngine
* @state: a widget state
* @progress: (out): return location for the transition progress
*
* Returns %TRUE if there is a transition animation running for the
* current region (see gtk_style_context_push_animatable_region()).
*
* If @progress is not %NULL, the animation progress will be returned
* there, 0.0 means the state is closest to being %FALSE, while 1.0 means
* its closest to being %TRUE. This means transition animations will
* run from 0 to 1 when @state is being set to %TRUE and from 1 to 0 when
* its being set to %FALSE.
*
* Returns: %TRUE if there is a running transition animation for @state.
*
* Since: 3.0
*
* Deprecated: 3.6: Always returns %FALSE
**/
gboolean
gtk_theming_engine_state_is_running (GtkThemingEngine *engine,
GtkStateType state,
gdouble *progress)
{
g_return_val_if_fail (GTK_IS_THEMING_ENGINE (engine), FALSE);
return FALSE;
}
/**
* gtk_theming_engine_get_path:
* @engine: a #GtkThemingEngine
*
* Returns the widget path used for style matching.
*
* Returns: (transfer none): A #GtkWidgetPath
*
* Since: 3.0
*
* Deprecated: 3.14
**/
const GtkWidgetPath *
gtk_theming_engine_get_path (GtkThemingEngine *engine)
{
GtkThemingEnginePrivate *priv;
g_return_val_if_fail (GTK_IS_THEMING_ENGINE (engine), NULL);
priv = engine->priv;
return gtk_style_context_get_path (priv->context);
}
/**
* gtk_theming_engine_has_class:
* @engine: a #GtkThemingEngine
* @style_class: class name to look up
*
* Returns %TRUE if the currently rendered contents have
* defined the given class name.
*
* Returns: %TRUE if @engine has @class_name defined
*
* Since: 3.0
*
* Deprecated: 3.14
**/
gboolean
gtk_theming_engine_has_class (GtkThemingEngine *engine,
const gchar *style_class)
{
GtkThemingEnginePrivate *priv;
g_return_val_if_fail (GTK_IS_THEMING_ENGINE (engine), FALSE);
priv = engine->priv;
return gtk_style_context_has_class (priv->context, style_class);
}
/**
* gtk_theming_engine_has_region:
* @engine: a #GtkThemingEngine
* @style_region: a region name
* @flags: (out) (allow-none): return location for region flags
*
* Returns %TRUE if the currently rendered contents have the
* region defined. If @flags_return is not %NULL, it is set
* to the flags affecting the region.
*
* Returns: %TRUE if region is defined
*
* Since: 3.0
*
* Deprecated: 3.14
**/
gboolean
gtk_theming_engine_has_region (GtkThemingEngine *engine,
const gchar *style_region,
GtkRegionFlags *flags)
{
GtkThemingEnginePrivate *priv;
if (flags)
*flags = 0;
g_return_val_if_fail (GTK_IS_THEMING_ENGINE (engine), FALSE);
priv = engine->priv;
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
return gtk_style_context_has_region (priv->context, style_region, flags);
G_GNUC_END_IGNORE_DEPRECATIONS
}
/**
* gtk_theming_engine_get_direction:
* @engine: a #GtkThemingEngine
*
* Returns the widget direction used for rendering.
*
* Returns: the widget direction
*
* Since: 3.0
*
* Deprecated: 3.8: Use gtk_theming_engine_get_state() and
* check for #GTK_STATE_FLAG_DIR_LTR and
* #GTK_STATE_FLAG_DIR_RTL instead.
**/
GtkTextDirection
gtk_theming_engine_get_direction (GtkThemingEngine *engine)
{
GtkThemingEnginePrivate *priv;
g_return_val_if_fail (GTK_IS_THEMING_ENGINE (engine), GTK_TEXT_DIR_LTR);
priv = engine->priv;
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
return gtk_style_context_get_direction (priv->context);
G_GNUC_END_IGNORE_DEPRECATIONS;
}
/**
* gtk_theming_engine_get_junction_sides:
* @engine: a #GtkThemingEngine
*
* Returns the widget direction used for rendering.
*
* Returns: the widget direction
*
* Since: 3.0
*
* Deprecated: 3.14
**/
GtkJunctionSides
gtk_theming_engine_get_junction_sides (GtkThemingEngine *engine)
{
GtkThemingEnginePrivate *priv;
g_return_val_if_fail (GTK_IS_THEMING_ENGINE (engine), 0);
priv = engine->priv;
return gtk_style_context_get_junction_sides (priv->context);
}
/**
* gtk_theming_engine_get_color:
* @engine: a #GtkThemingEngine
* @state: state to retrieve the color for
* @color: (out): return value for the foreground color
*
* Gets the foreground color for a given state.
*
* Since: 3.0
*
* Deprecated: 3.14
**/
void
gtk_theming_engine_get_color (GtkThemingEngine *engine,
GtkStateFlags state,
GdkRGBA *color)
{
GtkThemingEnginePrivate *priv;
g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
priv = engine->priv;
gtk_style_context_get_color (priv->context, state, color);
}
/**
* gtk_theming_engine_get_background_color:
* @engine: a #GtkThemingEngine
* @state: state to retrieve the color for
* @color: (out): return value for the background color
*
* Gets the background color for a given state.
*
* Since: 3.0
*
* Deprecated: 3.14
**/
void
gtk_theming_engine_get_background_color (GtkThemingEngine *engine,
GtkStateFlags state,
GdkRGBA *color)
{
GtkThemingEnginePrivate *priv;
g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
priv = engine->priv;
gtk_style_context_get_background_color (priv->context, state, color);
}
/**
* gtk_theming_engine_get_border_color:
* @engine: a #GtkThemingEngine
* @state: state to retrieve the color for
* @color: (out): return value for the border color
*
* Gets the border color for a given state.
*
* Since: 3.0
*
* Deprecated: 3.14
**/
void
gtk_theming_engine_get_border_color (GtkThemingEngine *engine,
GtkStateFlags state,
GdkRGBA *color)
{
GtkThemingEnginePrivate *priv;
g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
priv = engine->priv;
gtk_style_context_get_border_color (priv->context, state, color);
}
/**
* gtk_theming_engine_get_border:
* @engine: a #GtkThemingEngine
* @state: state to retrieve the border for
* @border: (out): return value for the border settings
*
* Gets the border for a given state as a #GtkBorder.
*
* Since: 3.0
*
* Deprecated: 3.14
**/
void
gtk_theming_engine_get_border (GtkThemingEngine *engine,
GtkStateFlags state,
GtkBorder *border)
{
GtkThemingEnginePrivate *priv;
g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
priv = engine->priv;
gtk_style_context_get_border (priv->context, state, border);
}
/**
* gtk_theming_engine_get_padding:
* @engine: a #GtkThemingEngine
* @state: state to retrieve the padding for
* @padding: (out): return value for the padding settings
*
* Gets the padding for a given state as a #GtkBorder.
*
* Since: 3.0
*
* Deprecated: 3.14
**/
void
gtk_theming_engine_get_padding (GtkThemingEngine *engine,
GtkStateFlags state,
GtkBorder *padding)
{
GtkThemingEnginePrivate *priv;
g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
priv = engine->priv;
gtk_style_context_get_padding (priv->context, state, padding);
}
/**
* gtk_theming_engine_get_margin:
* @engine: a #GtkThemingEngine
* @state: state to retrieve the border for
* @margin: (out): return value for the margin settings
*
* Gets the margin for a given state as a #GtkBorder.
*
* Since: 3.0
*
* Deprecated: 3.14
**/
void
gtk_theming_engine_get_margin (GtkThemingEngine *engine,
GtkStateFlags state,
GtkBorder *margin)
{
GtkThemingEnginePrivate *priv;
g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
priv = engine->priv;
gtk_style_context_get_margin (priv->context, state, margin);
}
/**
* gtk_theming_engine_get_font:
* @engine: a #GtkThemingEngine
* @state: state to retrieve the font for
*
* Returns the font description for a given state.
*
* Returns: (transfer none): the #PangoFontDescription for the given
* state. This object is owned by GTK+ and should not be
* freed.
*
* Since: 3.0
*
* Deprecated: 3.8: Use gtk_theming_engine_get()
**/
const PangoFontDescription *
gtk_theming_engine_get_font (GtkThemingEngine *engine,
GtkStateFlags state)
{
GtkThemingEnginePrivate *priv;
g_return_val_if_fail (GTK_IS_THEMING_ENGINE (engine), NULL);
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
priv = engine->priv;
return gtk_style_context_get_font (priv->context, state);
G_GNUC_END_IGNORE_DEPRECATIONS;
}
/* GtkThemingModule */
static gboolean
gtk_theming_module_load (GTypeModule *type_module)
{
GtkThemingModule *theming_module;
GModule *module;
gchar *name, *module_path;
theming_module = GTK_THEMING_MODULE (type_module);
name = theming_module->name;
module_path = _gtk_find_module (name, "theming-engines");
if (!module_path)
return FALSE;
module = g_module_open (module_path, G_MODULE_BIND_LAZY | G_MODULE_BIND_LOCAL);
g_free (module_path);
if (!module)
return FALSE;
if (!g_module_symbol (module, "theme_init",
(gpointer *) &theming_module->init) ||
!g_module_symbol (module, "theme_exit",
(gpointer *) &theming_module->exit) ||
!g_module_symbol (module, "create_engine",
(gpointer *) &theming_module->create_engine))
{
g_module_close (module);
return FALSE;
}
theming_module->module = module;
theming_module->init (G_TYPE_MODULE (theming_module));
return TRUE;
}
static void
gtk_theming_module_unload (GTypeModule *type_module)
{
GtkThemingModule *theming_module;
theming_module = GTK_THEMING_MODULE (type_module);
theming_module->exit ();
g_module_close (theming_module->module);
theming_module->module = NULL;
theming_module->init = NULL;
theming_module->exit = NULL;
theming_module->create_engine = NULL;
}
static void
gtk_theming_module_class_init (GtkThemingModuleClass *klass)
{
GTypeModuleClass *module_class = G_TYPE_MODULE_CLASS (klass);
module_class->load = gtk_theming_module_load;
module_class->unload = gtk_theming_module_unload;
}
static void
gtk_theming_module_init (GtkThemingModule *module)
{
}
/**
* gtk_theming_engine_load:
* @name: Theme engine name to load
*
* Loads and initializes a theming engine module from the
* standard directories.
*
* Returns: (nullable) (transfer none): A theming engine, or %NULL if
* the engine @name doesnt exist.
*
* Deprecated: 3.14
**/
GtkThemingEngine *
gtk_theming_engine_load (const gchar *name)
{
static GHashTable *engines = NULL;
static GtkThemingEngine *default_engine;
GtkThemingEngine *engine = NULL;
if (name)
{
if (!engines)
engines = g_hash_table_new (g_str_hash, g_str_equal);
engine = g_hash_table_lookup (engines, name);
if (!engine)
{
GtkThemingModule *module;
module = g_object_new (GTK_TYPE_THEMING_MODULE, NULL);
g_type_module_set_name (G_TYPE_MODULE (module), name);
module->name = g_strdup (name);
if (module && g_type_module_use (G_TYPE_MODULE (module)))
{
engine = (module->create_engine) ();
if (engine)
g_hash_table_insert (engines, module->name, engine);
}
}
}
else
{
if (G_UNLIKELY (!default_engine))
default_engine = g_object_new (GTK_TYPE_THEMING_ENGINE, NULL);
engine = default_engine;
}
return engine;
}
/**
* gtk_theming_engine_get_screen:
* @engine: a #GtkThemingEngine
*
* Returns the #GdkScreen to which @engine currently rendering to.
*
* Returns: (nullable) (transfer none): a #GdkScreen, or %NULL.
*
* Deprecated: 3.14
**/
GdkScreen *
gtk_theming_engine_get_screen (GtkThemingEngine *engine)
{
GtkThemingEnginePrivate *priv;
g_return_val_if_fail (GTK_IS_THEMING_ENGINE (engine), NULL);
priv = engine->priv;
return gtk_style_context_get_screen (priv->context);
}
/* Paint method implementations */
static void
gtk_theming_engine_render_check (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
gtk_render_check (engine->priv->context, cr, x, y, width, height);
}
static void
gtk_theming_engine_render_option (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
gtk_render_option (engine->priv->context, cr, x, y, width, height);
}
static void
gtk_theming_engine_render_arrow (GtkThemingEngine *engine,
cairo_t *cr,
gdouble angle,
gdouble x,
gdouble y,
gdouble size)
{
gtk_render_arrow (engine->priv->context, cr, angle, x, y, size);
}
static void
gtk_theming_engine_render_background (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
gtk_render_background (engine->priv->context, cr, x, y, width, height);
}
static void
gtk_theming_engine_render_frame (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
gtk_render_frame (engine->priv->context, cr, x, y, width, height);
}
static void
gtk_theming_engine_render_expander (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
gtk_render_expander (engine->priv->context, cr, x, y, width, height);
}
static void
gtk_theming_engine_render_focus (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
gtk_render_focus (engine->priv->context, cr, x, y, width, height);
}
static void
gtk_theming_engine_render_line (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x0,
gdouble y0,
gdouble x1,
gdouble y1)
{
gtk_render_line (engine->priv->context, cr, x0, y0, x1, y1);
}
static void
gtk_theming_engine_render_layout (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
PangoLayout *layout)
{
gtk_render_layout (engine->priv->context, cr, x, y, layout);
}
static void
gtk_theming_engine_render_slider (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
GtkOrientation orientation)
{
gtk_render_slider (engine->priv->context, cr, x, y, width, height, orientation);
}
static void
gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
GtkPositionType gap_side,
gdouble xy0_gap,
gdouble xy1_gap)
{
gtk_render_frame_gap (engine->priv->context, cr, x, y, width, height, gap_side, xy0_gap, xy1_gap);
}
static void
gtk_theming_engine_render_extension (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height,
GtkPositionType gap_side)
{
gtk_render_extension (engine->priv->context, cr, x, y, width, height, gap_side);
}
static void
gtk_theming_engine_render_handle (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
gtk_render_handle (engine->priv->context, cr, x, y, width, height);
}
static void
gtk_theming_engine_render_activity (GtkThemingEngine *engine,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
gtk_render_activity (engine->priv->context, cr, x, y, width, height);
}
static GdkPixbuf *
gtk_theming_engine_render_icon_pixbuf (GtkThemingEngine *engine,
const GtkIconSource *source,
GtkIconSize size)
{
return gtk_render_icon_pixbuf (engine->priv->context, source, size);
}
static void
gtk_theming_engine_render_icon (GtkThemingEngine *engine,
cairo_t *cr,
GdkPixbuf *pixbuf,
gdouble x,
gdouble y)
{
gtk_render_icon (engine->priv->context, cr, pixbuf, x, y);
}
static void
gtk_theming_engine_render_icon_surface (GtkThemingEngine *engine,
cairo_t *cr,
cairo_surface_t *surface,
gdouble x,
gdouble y)
{
gtk_render_icon_surface (engine->priv->context, cr, surface, x, y);
}
G_GNUC_END_IGNORE_DEPRECATIONS