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Add helper API for getting colors/borders in GtkStyleContext/GtkThemingEngine

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This commit is contained in:
Carlos Garnacho 2010-12-02 23:41:24 +01:00
parent 3e8d138ed6
commit bacb7906f2
7 changed files with 428 additions and 0 deletions
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12
docs/reference/gtk/gtk3-sections.txt
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@ -5402,6 +5402,12 @@ gtk_style_context_get_style
gtk_style_context_get_style_property
gtk_style_context_get_style_valist
gtk_style_context_get_valist
gtk_style_context_get_color
gtk_style_context_get_background_color
gtk_style_context_get_border_color
gtk_style_context_get_border
gtk_style_context_get_padding
gtk_style_context_get_margin
gtk_style_context_invalidate
gtk_style_context_state_is_running
gtk_style_context_lookup_color
@ -5506,6 +5512,12 @@ gtk_theming_engine_get_style
gtk_theming_engine_get_style_property
gtk_theming_engine_get_style_valist
gtk_theming_engine_get_valist
gtk_theming_engine_get_color
gtk_theming_engine_get_background_color
gtk_theming_engine_get_border_color
gtk_theming_engine_get_border
gtk_theming_engine_get_padding
gtk_theming_engine_get_margin
gtk_theming_engine_has_class
gtk_theming_engine_has_region
gtk_theming_engine_lookup_color

192
gtk/gtkstylecontext.c
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@ -3151,6 +3151,198 @@ gtk_style_context_set_background (GtkStyleContext *context,
}
}
/**
* gtk_style_context_get_color:
* @context: a #GtkStyleContext
* @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
**/
void
gtk_style_context_get_color (GtkStyleContext *context,
GtkStateFlags state,
GdkRGBA *color)
{
GtkStyleContextPrivate *priv;
StyleData *data;
const GValue *value;
GdkRGBA *c;
g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
priv = context->priv;
g_return_if_fail (priv->widget_path != NULL);
data = style_data_lookup (context);
value = _gtk_style_properties_peek_property (data->store,
"color", state);
c = g_value_get_boxed (value);
*color = *c;
}
/**
* gtk_style_context_get_background_color:
* @context: a #GtkStyleContext
* @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
**/
void
gtk_style_context_get_background_color (GtkStyleContext *context,
GtkStateFlags state,
GdkRGBA *color)
{
GtkStyleContextPrivate *priv;
StyleData *data;
const GValue *value;
GdkRGBA *c;
g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
priv = context->priv;
g_return_if_fail (priv->widget_path != NULL);
data = style_data_lookup (context);
value = _gtk_style_properties_peek_property (data->store,
"background-color", state);
c = g_value_get_boxed (value);
*color = *c;
}
/**
* gtk_style_context_get_border_color:
* @context: a #GtkStyleContext
* @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
**/
void
gtk_style_context_get_border_color (GtkStyleContext *context,
GtkStateFlags state,
GdkRGBA *color)
{
GtkStyleContextPrivate *priv;
StyleData *data;
const GValue *value;
GdkRGBA *c;
g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
priv = context->priv;
g_return_if_fail (priv->widget_path != NULL);
data = style_data_lookup (context);
value = _gtk_style_properties_peek_property (data->store,
"border-color", state);
c = g_value_get_boxed (value);
*color = *c;
}
/**
* gtk_style_context_get_border:
* @context: a #GtkStyleContext
* @state: state to retrieve the border for
* @color: (out): return value for the border settings
*
* Gets the border for a given state as a #GtkBorder.
*
* Since: 3.0
**/
void
gtk_style_context_get_border (GtkStyleContext *context,
GtkStateFlags state,
GtkBorder *border)
{
GtkStyleContextPrivate *priv;
StyleData *data;
const GValue *value;
GtkBorder *b;
g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
priv = context->priv;
g_return_if_fail (priv->widget_path != NULL);
data = style_data_lookup (context);
value = _gtk_style_properties_peek_property (data->store,
"border-width", state);
b = g_value_get_boxed (value);
*border = *b;
}
/**
* gtk_style_context_get_padding:
* @context: a #GtkStyleContext
* @state: state to retrieve the padding for
* @color: (out): return value for the padding settings
*
* Gets the padding for a given state as a #GtkBorder.
*
* Since: 3.0
**/
void
gtk_style_context_get_padding (GtkStyleContext *context,
GtkStateFlags state,
GtkBorder *padding)
{
GtkStyleContextPrivate *priv;
StyleData *data;
const GValue *value;
GtkBorder *b;
g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
priv = context->priv;
g_return_if_fail (priv->widget_path != NULL);
data = style_data_lookup (context);
value = _gtk_style_properties_peek_property (data->store,
"padding", state);
b = g_value_get_boxed (value);
*padding = *b;
}
/**
* gtk_style_context_get_margin:
* @context: a #GtkStyleContext
* @state: state to retrieve the border for
* @color: (out): return value for the margin settings
*
* Gets the margin for a given state as a #GtkBorder.
*
* Since: 3.0
**/
void
gtk_style_context_get_margin (GtkStyleContext *context,
GtkStateFlags state,
GtkBorder *margin)
{
GtkStyleContextPrivate *priv;
StyleData *data;
const GValue *value;
GtkBorder *b;
g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
priv = context->priv;
g_return_if_fail (priv->widget_path != NULL);
data = style_data_lookup (context);
value = _gtk_style_properties_peek_property (data->store,
"margin", state);
b = g_value_get_boxed (value);
*margin = *b;
}
/* Paint methods */
/**

21
gtk/gtkstylecontext.h
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@ -23,6 +23,7 @@
#include <glib-object.h>
#include <gtk/gtkstyleprovider.h>
#include <gtk/gtkwidgetpath.h>
#include <gtk/gtkborder.h>
G_BEGIN_DECLS
@ -420,6 +421,26 @@ void gtk_style_context_push_animatable_region (GtkStyleContext *context,
gpointer region_id);
void gtk_style_context_pop_animatable_region (GtkStyleContext *context);
/* Some helper functions to retrieve most common properties */
void gtk_style_context_get_color (GtkStyleContext *context,
GtkStateFlags state,
GdkRGBA *color);
void gtk_style_context_get_background_color (GtkStyleContext *context,
GtkStateFlags state,
GdkRGBA *color);
void gtk_style_context_get_border_color (GtkStyleContext *context,
GtkStateFlags state,
GdkRGBA *color);
void gtk_style_context_get_border (GtkStyleContext *context,
GtkStateFlags state,
GtkBorder *border);
void gtk_style_context_get_padding (GtkStyleContext *context,
GtkStateFlags state,
GtkBorder *padding);
void gtk_style_context_get_margin (GtkStyleContext *context,
GtkStateFlags state,
GtkBorder *margin);
/* Semi-private API */
const GValue * _gtk_style_context_peek_style_property (GtkStyleContext *context,

37
gtk/gtkstyleproperties.c
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@ -857,6 +857,43 @@ lookup_default_value (PropertyNode *node,
g_param_value_set_default (node->pspec, value);
}
const GValue *
_gtk_style_properties_peek_property (GtkStyleProperties *props,
const gchar *prop_name,
GtkStateFlags state)
{
GtkStylePropertiesPrivate *priv;
PropertyNode *node;
PropertyData *prop;
GValue *val;
g_return_val_if_fail (GTK_IS_STYLE_PROPERTIES (props), NULL);
g_return_val_if_fail (prop_name != NULL, NULL);
node = property_node_lookup (g_quark_try_string (prop_name));
if (!node)
{
g_warning ("Style property \"%s\" is not registered", prop_name);
return NULL;
}
priv = props->priv;
prop = g_hash_table_lookup (priv->properties,
GINT_TO_POINTER (node->property_quark));
if (!prop)
return NULL;
val = property_data_match_state (prop, state);
if (val &&
!style_properties_resolve_type (props, node, val))
return NULL;
return val;
}
/**
* gtk_style_properties_get_property:
* @props: a #GtkStyleProperties

5
gtk/gtkstyleproperties.h
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@ -56,6 +56,11 @@ typedef gboolean (* GtkStylePropertyParser) (const gchar *string,
GType gtk_style_properties_get_type (void) G_GNUC_CONST;
/* Semi-private API */
const GValue * _gtk_style_properties_peek_property (GtkStyleProperties *props,
const gchar *prop_name,
GtkStateFlags state);
/* Functions to register style properties */
void gtk_style_properties_register_property (GtkStylePropertyParser parse_func,
GParamSpec *pspec);

139
gtk/gtkthemingengine.c
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@ -737,6 +737,145 @@ gtk_theming_engine_get_junction_sides (GtkThemingEngine *engine)
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
**/
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
**/
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
**/
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
* @color: (out): return value for the border settings
*
* Gets the border for a given state as a #GtkBorder.
*
* Since: 3.0
**/
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
* @color: (out): return value for the padding settings
*
* Gets the padding for a given state as a #GtkBorder.
*
* Since: 3.0
**/
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:
* @engien: a #GtkThemingEngine
* @state: state to retrieve the border for
* @color: (out): return value for the margin settings
*
* Gets the margin for a given state as a #GtkBorder.
*
* Since: 3.0
**/
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);
}
/* GtkThemingModule */
static gboolean

22
gtk/gtkthemingengine.h
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@ -215,6 +215,28 @@ GtkTextDirection gtk_theming_engine_get_direction (GtkThemingEngine *engine);
GtkJunctionSides gtk_theming_engine_get_junction_sides (GtkThemingEngine *engine);
/* Helper functions */
void gtk_theming_engine_get_color (GtkThemingEngine *engine,
GtkStateFlags state,
GdkRGBA *color);
void gtk_theming_engine_get_background_color (GtkThemingEngine *engine,
GtkStateFlags state,
GdkRGBA *color);
void gtk_theming_engine_get_border_color (GtkThemingEngine *engine,
GtkStateFlags state,
GdkRGBA *color);
void gtk_theming_engine_get_border (GtkThemingEngine *engine,
GtkStateFlags state,
GtkBorder *border);
void gtk_theming_engine_get_padding (GtkThemingEngine *engine,
GtkStateFlags state,
GtkBorder *padding);
void gtk_theming_engine_get_margin (GtkThemingEngine *engine,
GtkStateFlags state,
GtkBorder *margin);
GtkThemingEngine * gtk_theming_engine_load (const gchar *name);
GdkScreen * gtk_theming_engine_get_screen (GtkThemingEngine *engine);