263 lines
12 KiB
C
263 lines
12 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
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#error "Only <gtk/gtk.h> can be included directly."
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#endif
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#ifndef __GTK_THEMING_ENGINE_H__
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#define __GTK_THEMING_ENGINE_H__
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#include <glib-object.h>
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#include <cairo.h>
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#include <gtk/gtkstylecontext.h>
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#include <gtk/gtkwidgetpath.h>
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#include <gtk/gtkenums.h>
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G_BEGIN_DECLS
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#define GTK_TYPE_THEMING_ENGINE (gtk_theming_engine_get_type ())
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#define GTK_THEMING_ENGINE(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GTK_TYPE_THEMING_ENGINE, GtkThemingEngine))
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#define GTK_THEMING_ENGINE_CLASS(c) (G_TYPE_CHECK_CLASS_CAST ((c), GTK_TYPE_THEMING_ENGINE, GtkThemingEngineClass))
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#define GTK_IS_THEMING_ENGINE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GTK_TYPE_THEMING_ENGINE))
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#define GTK_IS_THEMING_ENGINE_CLASS(c) (G_TYPE_CHECK_CLASS_TYPE ((c), GTK_TYPE_THEMING_ENGINE))
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#define GTK_THEMING_ENGINE_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GTK_TYPE_THEMING_ENGINE, GtkThemingEngineClass))
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typedef struct _GtkThemingEngine GtkThemingEngine;
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typedef struct GtkThemingEnginePrivate GtkThemingEnginePrivate;
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typedef struct _GtkThemingEngineClass GtkThemingEngineClass;
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struct _GtkThemingEngine
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{
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GObject parent_object;
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GtkThemingEnginePrivate *priv;
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};
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/**
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* GtkThemingEngineClass
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* @parent_class: The parent class.
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* @render_line: Renders a line between two points.
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* @render_background: Renders the background area of a widget region.
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* @render_frame: Renders the frame around a widget area.
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* @render_frame_gap: Renders the frame around a widget area with a gap in it.
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* @render_extension: Renders a extension to a box, usually a notebook tab.
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* @render_check: Renders a checkmark, as in #GtkCheckButton.
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* @render_option: Renders an option, as in #GtkRadioButton.
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* @render_arrow: Renders an arrow pointing to a certain direction.
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* @render_expander: Renders an element what will expose/expand part of
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* the UI, as in #GtkExpander.
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* @render_focus: Renders the focus indicator.
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* @render_layout: Renders a #PangoLayout
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* @render_slider: Renders a slider control, as in #GtkScale.
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* @render_handle: Renders a handle to drag UI elements, as in #GtkPaned.
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* @render_activity: Renders an area displaying activity, such as in #GtkSpinner,
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* or #GtkProgressBar.
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* @render_icon_pixbuf: Renders an icon as a #GdkPixbuf.
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* @render_icon: Renders an icon given as a #GdkPixbuf.
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*
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* Base class for theming engines.
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*/
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struct _GtkThemingEngineClass
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{
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GObjectClass parent_class;
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void (* render_line) (GtkThemingEngine *engine,
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cairo_t *cr,
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gdouble x0,
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gdouble y0,
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gdouble x1,
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gdouble y1);
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void (* render_background) (GtkThemingEngine *engine,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height);
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void (* render_frame) (GtkThemingEngine *engine,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height);
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void (* render_frame_gap) (GtkThemingEngine *engine,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height,
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GtkPositionType gap_side,
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gdouble xy0_gap,
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gdouble xy1_gap);
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void (* render_extension) (GtkThemingEngine *engine,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height,
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GtkPositionType gap_side);
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void (* render_check) (GtkThemingEngine *engine,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height);
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void (* render_option) (GtkThemingEngine *engine,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height);
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void (* render_arrow) (GtkThemingEngine *engine,
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cairo_t *cr,
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gdouble angle,
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gdouble x,
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gdouble y,
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gdouble size);
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void (* render_expander) (GtkThemingEngine *engine,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height);
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void (* render_focus) (GtkThemingEngine *engine,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height);
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void (* render_layout) (GtkThemingEngine *engine,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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PangoLayout *layout);
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void (* render_slider) (GtkThemingEngine *engine,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height,
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GtkOrientation orientation);
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void (* render_handle) (GtkThemingEngine *engine,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height);
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void (* render_activity) (GtkThemingEngine *engine,
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cairo_t *cr,
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gdouble x,
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gdouble y,
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gdouble width,
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gdouble height);
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GdkPixbuf * (* render_icon_pixbuf) (GtkThemingEngine *engine,
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const GtkIconSource *source,
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GtkIconSize size);
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void (* render_icon) (GtkThemingEngine *engine,
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cairo_t *cr,
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GdkPixbuf *pixbuf,
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gdouble x,
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gdouble y);
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/*< private >*/
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gpointer padding[15];
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};
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GType gtk_theming_engine_get_type (void) G_GNUC_CONST;
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void _gtk_theming_engine_set_context (GtkThemingEngine *engine,
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GtkStyleContext *context);
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void gtk_theming_engine_register_property (const gchar *name_space,
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GtkStylePropertyParser parse_func,
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GParamSpec *pspec);
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void gtk_theming_engine_get_property (GtkThemingEngine *engine,
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const gchar *property,
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GtkStateFlags state,
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GValue *value);
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void gtk_theming_engine_get_valist (GtkThemingEngine *engine,
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GtkStateFlags state,
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va_list args);
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void gtk_theming_engine_get (GtkThemingEngine *engine,
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GtkStateFlags state,
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...) G_GNUC_NULL_TERMINATED;
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void gtk_theming_engine_get_style_property (GtkThemingEngine *engine,
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const gchar *property_name,
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GValue *value);
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void gtk_theming_engine_get_style_valist (GtkThemingEngine *engine,
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va_list args);
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void gtk_theming_engine_get_style (GtkThemingEngine *engine,
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...);
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gboolean gtk_theming_engine_lookup_color (GtkThemingEngine *engine,
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const gchar *color_name,
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GdkRGBA *color);
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const GtkWidgetPath * gtk_theming_engine_get_path (GtkThemingEngine *engine);
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gboolean gtk_theming_engine_has_class (GtkThemingEngine *engine,
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const gchar *style_class);
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gboolean gtk_theming_engine_has_region (GtkThemingEngine *engine,
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const gchar *style_region,
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GtkRegionFlags *flags);
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GtkStateFlags gtk_theming_engine_get_state (GtkThemingEngine *engine);
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gboolean gtk_theming_engine_state_is_running (GtkThemingEngine *engine,
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GtkStateType state,
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gdouble *progress);
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GtkTextDirection gtk_theming_engine_get_direction (GtkThemingEngine *engine);
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GtkJunctionSides gtk_theming_engine_get_junction_sides (GtkThemingEngine *engine);
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/* Helper functions */
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void gtk_theming_engine_get_color (GtkThemingEngine *engine,
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GtkStateFlags state,
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GdkRGBA *color);
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void gtk_theming_engine_get_background_color (GtkThemingEngine *engine,
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GtkStateFlags state,
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GdkRGBA *color);
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void gtk_theming_engine_get_border_color (GtkThemingEngine *engine,
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GtkStateFlags state,
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GdkRGBA *color);
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void gtk_theming_engine_get_border (GtkThemingEngine *engine,
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GtkStateFlags state,
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GtkBorder *border);
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void gtk_theming_engine_get_padding (GtkThemingEngine *engine,
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GtkStateFlags state,
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GtkBorder *padding);
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void gtk_theming_engine_get_margin (GtkThemingEngine *engine,
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GtkStateFlags state,
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GtkBorder *margin);
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const PangoFontDescription * gtk_theming_engine_get_font (GtkThemingEngine *engine,
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GtkStateFlags state);
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GtkThemingEngine * gtk_theming_engine_load (const gchar *name);
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GdkScreen * gtk_theming_engine_get_screen (GtkThemingEngine *engine);
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G_END_DECLS
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#endif /* __GTK_THEMING_ENGINE_H__ */
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