forked from AuroraMiddleware/gtk
53b4fd69db
This is useful for getting at computed values and allows accessing images before the code autoconverts them to a cairo pattern.
2693 lines
80 KiB
C
2693 lines
80 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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#include "config.h"
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#include <math.h>
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#include <gtk/gtk.h>
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#include <gtk/gtkthemingengine.h>
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#include <gtk/gtkstylecontext.h>
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#include <gtk/gtkintl.h>
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#include "gtkprivate.h"
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#include "gtkmodulesprivate.h"
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#include "gtkborderimageprivate.h"
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#include "gtkpango.h"
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#include "gtkshadowprivate.h"
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#include "gtkcsstypesprivate.h"
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#include "gtkthemingengineprivate.h"
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#include "gtkroundedboxprivate.h"
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#include "gtkthemingbackgroundprivate.h"
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/**
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* SECTION:gtkthemingengine
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* @Short_description: Theming renderers
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* @Title: GtkThemingEngine
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* @See_also: #GtkStyleContext
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*
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* #GtkThemingEngine is the object used for rendering themed content
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* in GTK+ widgets. Even though GTK+ has a default implementation,
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* it can be overridden in CSS files by enforcing a #GtkThemingEngine
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* object to be loaded as a module.
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*
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* In order to implement a theming engine, a #GtkThemingEngine subclass
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* must be created, alongside the CSS file that will reference it, the
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* theming engine would be created as an .so library, and installed in
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* $(gtk-modules-dir)/theming-engines/.
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*
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* #GtkThemingEngine<!-- -->s have limited access to the object they are
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* rendering, the #GtkThemingEngine API has read-only accessors to the
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* style information contained in the rendered object's #GtkStyleContext.
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*/
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enum {
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SIDE_LEFT = 1,
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SIDE_BOTTOM = 1 << 1,
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SIDE_RIGHT = 1 << 2,
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SIDE_TOP = 1 << 3,
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SIDE_ALL = 0xF
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};
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enum {
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PROP_0,
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PROP_NAME
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};
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struct GtkThemingEnginePrivate
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{
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GtkStyleContext *context;
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gchar *name;
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};
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#define GTK_THEMING_ENGINE_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GTK_TYPE_THEMING_ENGINE, GtkThemingEnginePrivate))
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static void gtk_theming_engine_finalize (GObject *object);
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static void gtk_theming_engine_impl_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_theming_engine_impl_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_theming_engine_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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static void gtk_theming_engine_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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static void gtk_theming_engine_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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static void gtk_theming_engine_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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static void gtk_theming_engine_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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static void gtk_theming_engine_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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static void gtk_theming_engine_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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static void gtk_theming_engine_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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static void gtk_theming_engine_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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static void gtk_theming_engine_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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static void gtk_theming_engine_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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static void gtk_theming_engine_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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static void gtk_theming_engine_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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static void gtk_theming_engine_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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static GdkPixbuf * gtk_theming_engine_render_icon_pixbuf (GtkThemingEngine *engine,
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const GtkIconSource *source,
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GtkIconSize size);
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static void gtk_theming_engine_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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G_DEFINE_TYPE (GtkThemingEngine, gtk_theming_engine, G_TYPE_OBJECT)
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typedef struct GtkThemingModule GtkThemingModule;
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typedef struct GtkThemingModuleClass GtkThemingModuleClass;
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struct GtkThemingModule
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{
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GTypeModule parent_instance;
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GModule *module;
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gchar *name;
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void (*init) (GTypeModule *module);
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void (*exit) (void);
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GtkThemingEngine * (*create_engine) (void);
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};
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struct GtkThemingModuleClass
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{
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GTypeModuleClass parent_class;
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};
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#define GTK_TYPE_THEMING_MODULE (gtk_theming_module_get_type ())
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#define GTK_THEMING_MODULE(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GTK_TYPE_THEMING_MODULE, GtkThemingModule))
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#define GTK_IS_THEMING_MODULE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GTK_TYPE_THEMING_MODULE))
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G_DEFINE_TYPE (GtkThemingModule, gtk_theming_module, G_TYPE_TYPE_MODULE);
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static void
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gtk_theming_engine_class_init (GtkThemingEngineClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->finalize = gtk_theming_engine_finalize;
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object_class->set_property = gtk_theming_engine_impl_set_property;
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object_class->get_property = gtk_theming_engine_impl_get_property;
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klass->render_icon = gtk_theming_engine_render_icon;
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klass->render_check = gtk_theming_engine_render_check;
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klass->render_option = gtk_theming_engine_render_option;
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klass->render_arrow = gtk_theming_engine_render_arrow;
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klass->render_background = gtk_theming_engine_render_background;
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klass->render_frame = gtk_theming_engine_render_frame;
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klass->render_expander = gtk_theming_engine_render_expander;
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klass->render_focus = gtk_theming_engine_render_focus;
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klass->render_layout = gtk_theming_engine_render_layout;
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klass->render_line = gtk_theming_engine_render_line;
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klass->render_slider = gtk_theming_engine_render_slider;
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klass->render_frame_gap = gtk_theming_engine_render_frame_gap;
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klass->render_extension = gtk_theming_engine_render_extension;
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klass->render_handle = gtk_theming_engine_render_handle;
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klass->render_activity = gtk_theming_engine_render_activity;
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klass->render_icon_pixbuf = gtk_theming_engine_render_icon_pixbuf;
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/**
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* GtkThemingEngine:name:
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*
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* The theming engine name, this name will be used when registering
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* custom properties, for a theming engine named "Clearlooks" registering
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* a "glossy" custom property, it could be referenced in the CSS file as
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*
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* <programlisting>
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* -Clearlooks-glossy: true;
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* </programlisting>
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*
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* Since: 3.0
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*/
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g_object_class_install_property (object_class,
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PROP_NAME,
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g_param_spec_string ("name",
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P_("Name"),
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P_("Theming engine name"),
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NULL,
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G_PARAM_CONSTRUCT_ONLY | GTK_PARAM_READWRITE));
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g_type_class_add_private (object_class, sizeof (GtkThemingEnginePrivate));
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}
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static void
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gtk_theming_engine_init (GtkThemingEngine *engine)
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{
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engine->priv = GTK_THEMING_ENGINE_GET_PRIVATE (engine);
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}
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static void
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gtk_theming_engine_finalize (GObject *object)
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{
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GtkThemingEnginePrivate *priv;
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priv = GTK_THEMING_ENGINE (object)->priv;
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g_free (priv->name);
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G_OBJECT_GET_CLASS (gtk_theming_engine_parent_class)->finalize (object);
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}
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static void
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gtk_theming_engine_impl_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkThemingEnginePrivate *priv;
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priv = GTK_THEMING_ENGINE (object)->priv;
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switch (prop_id)
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{
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case PROP_NAME:
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if (priv->name)
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g_free (priv->name);
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priv->name = g_value_dup_string (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_theming_engine_impl_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkThemingEnginePrivate *priv;
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priv = GTK_THEMING_ENGINE (object)->priv;
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switch (prop_id)
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{
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case PROP_NAME:
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g_value_set_string (value, priv->name);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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void
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_gtk_theming_engine_set_context (GtkThemingEngine *engine,
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GtkStyleContext *context)
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{
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GtkThemingEnginePrivate *priv;
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g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
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g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
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priv = engine->priv;
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priv->context = context;
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}
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const GValue *
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_gtk_theming_engine_peek_property (GtkThemingEngine *engine,
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const char *property_name)
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{
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g_return_val_if_fail (GTK_IS_THEMING_ENGINE (engine), NULL);
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g_return_val_if_fail (property_name != NULL, NULL);
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return _gtk_style_context_peek_property (engine->priv->context, property_name);
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}
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/**
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* gtk_theming_engine_get_property:
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* @engine: a #GtkThemingEngine
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* @property: the property name
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* @state: state to retrieve the value for
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* @value: (out) (transfer full): return location for the property value,
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* you must free this memory using g_value_unset() once you are
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* done with it.
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*
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* Gets a property value as retrieved from the style settings that apply
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* to the currently rendered element.
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*
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* Since: 3.0
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**/
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void
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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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{
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GtkThemingEnginePrivate *priv;
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g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
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g_return_if_fail (property != NULL);
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g_return_if_fail (value != NULL);
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priv = engine->priv;
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gtk_style_context_get_property (priv->context, property, state, value);
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}
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/**
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* gtk_theming_engine_get_valist:
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* @engine: a #GtkThemingEngine
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* @state: state to retrieve values for
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* @args: va_list of property name/return location pairs, followed by %NULL
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*
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* Retrieves several style property values that apply to the currently
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* rendered element.
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*
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* Since: 3.0
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**/
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void
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gtk_theming_engine_get_valist (GtkThemingEngine *engine,
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GtkStateFlags state,
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va_list args)
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{
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GtkThemingEnginePrivate *priv;
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g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
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priv = engine->priv;
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gtk_style_context_get_valist (priv->context, state, args);
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}
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/**
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* gtk_theming_engine_get:
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* @engine: a #GtkThemingEngine
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* @state: state to retrieve values for
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* @...: property name /return value pairs, followed by %NULL
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*
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* Retrieves several style property values that apply to the currently
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* rendered element.
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*
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* Since: 3.0
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**/
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void
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gtk_theming_engine_get (GtkThemingEngine *engine,
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GtkStateFlags state,
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...)
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{
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GtkThemingEnginePrivate *priv;
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va_list args;
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g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
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priv = engine->priv;
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va_start (args, state);
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gtk_style_context_get_valist (priv->context, state, args);
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va_end (args);
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}
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/**
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* gtk_theming_engine_get_style_property:
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* @engine: a #GtkThemingEngine
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* @property_name: the name of the widget style property
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* @value: Return location for the property value, free with
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* g_value_unset() after use.
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*
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* Gets the value for a widget style property.
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*
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* Since: 3.0
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**/
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void
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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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{
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GtkThemingEnginePrivate *priv;
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g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
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g_return_if_fail (property_name != NULL);
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priv = engine->priv;
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gtk_style_context_get_style_property (priv->context, property_name, value);
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}
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/**
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* gtk_theming_engine_get_style_valist:
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* @engine: a #GtkThemingEngine
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* @args: va_list of property name/return location pairs, followed by %NULL
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*
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* Retrieves several widget style properties from @engine according to the
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* currently rendered content's style.
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*
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* Since: 3.0
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**/
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void
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gtk_theming_engine_get_style_valist (GtkThemingEngine *engine,
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va_list args)
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{
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GtkThemingEnginePrivate *priv;
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g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
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priv = engine->priv;
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gtk_style_context_get_style_valist (priv->context, args);
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}
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/**
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* gtk_theming_engine_get_style:
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* @engine: a #GtkThemingEngine
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* @...: property name /return value pairs, followed by %NULL
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*
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* Retrieves several widget style properties from @engine according
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* to the currently rendered content's style.
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*
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* Since: 3.0
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**/
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void
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gtk_theming_engine_get_style (GtkThemingEngine *engine,
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...)
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{
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GtkThemingEnginePrivate *priv;
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va_list args;
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g_return_if_fail (GTK_IS_THEMING_ENGINE (engine));
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priv = engine->priv;
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va_start (args, engine);
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gtk_style_context_get_style_valist (priv->context, args);
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va_end (args);
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}
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/**
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* gtk_theming_engine_lookup_color:
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* @engine: a #GtkThemingEngine
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* @color_name: color name to lookup
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* @color: (out): Return location for the looked up color
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*
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* Looks up and resolves a color name in the current style's color map.
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|
*
|
|
* Returns: %TRUE if @color_name was found and resolved, %FALSE otherwise
|
|
**/
|
|
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
|
|
**/
|
|
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
|
|
* it's 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
|
|
* it's being set to %FALSE.
|
|
*
|
|
* Returns: %TRUE if there is a running transition animation for @state.
|
|
*
|
|
* Since: 3.0
|
|
**/
|
|
gboolean
|
|
gtk_theming_engine_state_is_running (GtkThemingEngine *engine,
|
|
GtkStateType state,
|
|
gdouble *progress)
|
|
{
|
|
GtkThemingEnginePrivate *priv;
|
|
|
|
g_return_val_if_fail (GTK_IS_THEMING_ENGINE (engine), FALSE);
|
|
|
|
priv = engine->priv;
|
|
return gtk_style_context_state_is_running (priv->context, state, progress);
|
|
}
|
|
|
|
/**
|
|
* gtk_theming_engine_get_path:
|
|
* @engine: a #GtkThemingEngine
|
|
*
|
|
* Returns the widget path used for style matching.
|
|
*
|
|
* Returns: (transfer none): A #GtkWidgetPath
|
|
*
|
|
* Since: 3.0
|
|
**/
|
|
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
|
|
**/
|
|
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
|
|
**/
|
|
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;
|
|
return gtk_style_context_has_region (priv->context, style_region, flags);
|
|
}
|
|
|
|
/**
|
|
* gtk_theming_engine_get_direction:
|
|
* @engine: a #GtkThemingEngine
|
|
*
|
|
* Returns the widget direction used for rendering.
|
|
*
|
|
* Returns: the widget direction
|
|
*
|
|
* Since: 3.0
|
|
**/
|
|
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;
|
|
return gtk_style_context_get_direction (priv->context);
|
|
}
|
|
|
|
/**
|
|
* gtk_theming_engine_get_junction_sides:
|
|
* @engine: a #GtkThemingEngine
|
|
*
|
|
* Returns the widget direction used for rendering.
|
|
*
|
|
* Returns: the widget direction
|
|
*
|
|
* Since: 3.0
|
|
**/
|
|
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
|
|
**/
|
|
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
|
|
* @border: (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
|
|
* @padding: (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:
|
|
* @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
|
|
**/
|
|
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
|
|
**/
|
|
const PangoFontDescription *
|
|
gtk_theming_engine_get_font (GtkThemingEngine *engine,
|
|
GtkStateFlags state)
|
|
{
|
|
GtkThemingEnginePrivate *priv;
|
|
|
|
g_return_val_if_fail (GTK_IS_THEMING_ENGINE (engine), NULL);
|
|
|
|
priv = engine->priv;
|
|
return gtk_style_context_get_font (priv->context, state);
|
|
}
|
|
|
|
/* 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: (transfer none): A theming engine, or %NULL if
|
|
* the engine @name doesn't exist.
|
|
**/
|
|
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: (transfer none): a #GdkScreen, or %NULL.
|
|
**/
|
|
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)
|
|
{
|
|
GdkRGBA fg_color, bg_color;
|
|
GtkStateFlags flags;
|
|
gint exterior_size, interior_size, thickness, pad;
|
|
GtkBorderStyle border_style;
|
|
GtkBorder border;
|
|
gint border_width;
|
|
GtkThemingBackground bg;
|
|
|
|
_gtk_theming_background_init (&bg, engine,
|
|
x, y,
|
|
width, height,
|
|
gtk_theming_engine_get_junction_sides (engine));
|
|
|
|
if (_gtk_theming_background_has_background_image (&bg))
|
|
{
|
|
_gtk_theming_background_render (&bg, cr);
|
|
return;
|
|
}
|
|
|
|
flags = gtk_theming_engine_get_state (engine);
|
|
cairo_save (cr);
|
|
|
|
gtk_theming_engine_get_color (engine, flags, &fg_color);
|
|
gtk_theming_engine_get_background_color (engine, flags, &bg_color);
|
|
gtk_theming_engine_get_border (engine, flags, &border);
|
|
|
|
gtk_theming_engine_get (engine, flags,
|
|
"border-style", &border_style,
|
|
NULL);
|
|
|
|
border_width = MIN (MIN (border.top, border.bottom),
|
|
MIN (border.left, border.right));
|
|
exterior_size = MIN (width, height);
|
|
|
|
if (exterior_size % 2 == 0) /* Ensure odd */
|
|
exterior_size -= 1;
|
|
|
|
/* FIXME: thickness */
|
|
thickness = 1;
|
|
pad = thickness + MAX (1, (exterior_size - 2 * thickness) / 9);
|
|
interior_size = MAX (1, exterior_size - 2 * pad);
|
|
|
|
if (interior_size < 7)
|
|
{
|
|
interior_size = 7;
|
|
pad = MAX (0, (exterior_size - interior_size) / 2);
|
|
}
|
|
|
|
x -= (1 + exterior_size - (gint) width) / 2;
|
|
y -= (1 + exterior_size - (gint) height) / 2;
|
|
|
|
if (border_style == GTK_BORDER_STYLE_SOLID)
|
|
{
|
|
GdkRGBA border_color;
|
|
|
|
cairo_set_line_width (cr, border_width);
|
|
gtk_theming_engine_get_border_color (engine, flags, &border_color);
|
|
|
|
cairo_rectangle (cr, x + 0.5, y + 0.5, exterior_size - 1, exterior_size - 1);
|
|
gdk_cairo_set_source_rgba (cr, &bg_color);
|
|
cairo_fill_preserve (cr);
|
|
|
|
gdk_cairo_set_source_rgba (cr, &border_color);
|
|
cairo_stroke (cr);
|
|
}
|
|
|
|
gdk_cairo_set_source_rgba (cr, &fg_color);
|
|
|
|
if (flags & GTK_STATE_FLAG_INCONSISTENT)
|
|
{
|
|
int line_thickness = MAX (1, (3 + interior_size * 2) / 7);
|
|
|
|
cairo_rectangle (cr,
|
|
x + pad,
|
|
y + pad + (1 + interior_size - line_thickness) / 2,
|
|
interior_size,
|
|
line_thickness);
|
|
cairo_fill (cr);
|
|
}
|
|
else
|
|
{
|
|
gdouble progress;
|
|
gboolean running;
|
|
|
|
running = gtk_theming_engine_state_is_running (engine, GTK_STATE_ACTIVE, &progress);
|
|
|
|
if ((flags & GTK_STATE_FLAG_ACTIVE) || running)
|
|
{
|
|
if (!running)
|
|
progress = 1;
|
|
|
|
cairo_translate (cr,
|
|
x + pad, y + pad);
|
|
|
|
cairo_scale (cr, interior_size / 7., interior_size / 7.);
|
|
|
|
cairo_rectangle (cr, 0, 0, 7 * progress, 7);
|
|
cairo_clip (cr);
|
|
|
|
cairo_move_to (cr, 7.0, 0.0);
|
|
cairo_line_to (cr, 7.5, 1.0);
|
|
cairo_curve_to (cr, 5.3, 2.0,
|
|
4.3, 4.0,
|
|
3.5, 7.0);
|
|
cairo_curve_to (cr, 3.0, 5.7,
|
|
1.3, 4.7,
|
|
0.0, 4.7);
|
|
cairo_line_to (cr, 0.2, 3.5);
|
|
cairo_curve_to (cr, 1.1, 3.5,
|
|
2.3, 4.3,
|
|
3.0, 5.0);
|
|
cairo_curve_to (cr, 1.0, 3.9,
|
|
2.4, 4.1,
|
|
3.2, 4.9);
|
|
cairo_curve_to (cr, 3.5, 3.1,
|
|
5.2, 2.0,
|
|
7.0, 0.0);
|
|
|
|
cairo_fill (cr);
|
|
}
|
|
}
|
|
|
|
cairo_restore (cr);
|
|
}
|
|
|
|
static void
|
|
gtk_theming_engine_render_option (GtkThemingEngine *engine,
|
|
cairo_t *cr,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble width,
|
|
gdouble height)
|
|
{
|
|
GtkStateFlags flags;
|
|
GdkRGBA fg_color, bg_color;
|
|
gint exterior_size, interior_size, pad, thickness, border_width;
|
|
GtkBorderStyle border_style;
|
|
GtkBorder border;
|
|
GtkThemingBackground bg;
|
|
|
|
_gtk_theming_background_init (&bg, engine,
|
|
x, y,
|
|
width, height,
|
|
gtk_theming_engine_get_junction_sides (engine));
|
|
|
|
if (_gtk_theming_background_has_background_image (&bg))
|
|
{
|
|
_gtk_theming_background_render (&bg, cr);
|
|
return;
|
|
}
|
|
|
|
flags = gtk_theming_engine_get_state (engine);
|
|
|
|
cairo_save (cr);
|
|
|
|
gtk_theming_engine_get_color (engine, flags, &fg_color);
|
|
gtk_theming_engine_get_background_color (engine, flags, &bg_color);
|
|
gtk_theming_engine_get_border (engine, flags, &border);
|
|
|
|
gtk_theming_engine_get (engine, flags,
|
|
"border-style", &border_style,
|
|
NULL);
|
|
|
|
exterior_size = MIN (width, height);
|
|
border_width = MIN (MIN (border.top, border.bottom),
|
|
MIN (border.left, border.right));
|
|
|
|
if (exterior_size % 2 == 0) /* Ensure odd */
|
|
exterior_size -= 1;
|
|
|
|
x -= (1 + exterior_size - width) / 2;
|
|
y -= (1 + exterior_size - height) / 2;
|
|
|
|
if (border_style == GTK_BORDER_STYLE_SOLID)
|
|
{
|
|
GdkRGBA border_color;
|
|
|
|
cairo_set_line_width (cr, border_width);
|
|
gtk_theming_engine_get_border_color (engine, flags, &border_color);
|
|
|
|
cairo_new_sub_path (cr);
|
|
cairo_arc (cr,
|
|
x + exterior_size / 2.,
|
|
y + exterior_size / 2.,
|
|
(exterior_size - 1) / 2.,
|
|
0, 2 * G_PI);
|
|
|
|
gdk_cairo_set_source_rgba (cr, &bg_color);
|
|
cairo_fill_preserve (cr);
|
|
|
|
gdk_cairo_set_source_rgba (cr, &border_color);
|
|
cairo_stroke (cr);
|
|
}
|
|
|
|
gdk_cairo_set_source_rgba (cr, &fg_color);
|
|
|
|
/* FIXME: thickness */
|
|
thickness = 1;
|
|
|
|
if (flags & GTK_STATE_FLAG_INCONSISTENT)
|
|
{
|
|
gint line_thickness;
|
|
|
|
pad = thickness + MAX (1, (exterior_size - 2 * thickness) / 9);
|
|
interior_size = MAX (1, exterior_size - 2 * pad);
|
|
|
|
if (interior_size < 7)
|
|
{
|
|
interior_size = 7;
|
|
pad = MAX (0, (exterior_size - interior_size) / 2);
|
|
}
|
|
|
|
line_thickness = MAX (1, (3 + interior_size * 2) / 7);
|
|
|
|
cairo_rectangle (cr,
|
|
x + pad,
|
|
y + pad + (interior_size - line_thickness) / 2.,
|
|
interior_size,
|
|
line_thickness);
|
|
cairo_fill (cr);
|
|
}
|
|
if (flags & GTK_STATE_FLAG_ACTIVE)
|
|
{
|
|
pad = thickness + MAX (1, 2 * (exterior_size - 2 * thickness) / 9);
|
|
interior_size = MAX (1, exterior_size - 2 * pad);
|
|
|
|
if (interior_size < 5)
|
|
{
|
|
interior_size = 7;
|
|
pad = MAX (0, (exterior_size - interior_size) / 2);
|
|
}
|
|
|
|
cairo_new_sub_path (cr);
|
|
cairo_arc (cr,
|
|
x + pad + interior_size / 2.,
|
|
y + pad + interior_size / 2.,
|
|
interior_size / 2.,
|
|
0, 2 * G_PI);
|
|
cairo_fill (cr);
|
|
}
|
|
|
|
cairo_restore (cr);
|
|
}
|
|
|
|
static void
|
|
add_path_arrow (cairo_t *cr,
|
|
gdouble angle,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble size)
|
|
{
|
|
cairo_save (cr);
|
|
|
|
cairo_translate (cr, x + (size / 2), y + (size / 2));
|
|
cairo_rotate (cr, angle);
|
|
|
|
cairo_move_to (cr, 0, - (size / 4));
|
|
cairo_line_to (cr, - (size / 2), (size / 4));
|
|
cairo_line_to (cr, (size / 2), (size / 4));
|
|
cairo_close_path (cr);
|
|
|
|
cairo_restore (cr);
|
|
}
|
|
|
|
static void
|
|
gtk_theming_engine_render_arrow (GtkThemingEngine *engine,
|
|
cairo_t *cr,
|
|
gdouble angle,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble size)
|
|
{
|
|
GtkStateFlags flags;
|
|
GdkRGBA fg_color;
|
|
|
|
cairo_save (cr);
|
|
|
|
flags = gtk_theming_engine_get_state (engine);
|
|
gtk_theming_engine_get_color (engine, flags, &fg_color);
|
|
|
|
if (flags & GTK_STATE_FLAG_INSENSITIVE)
|
|
{
|
|
add_path_arrow (cr, angle, x + 1, y + 1, size);
|
|
cairo_set_source_rgb (cr, 1, 1, 1);
|
|
cairo_fill (cr);
|
|
}
|
|
|
|
add_path_arrow (cr, angle, x, y, size);
|
|
gdk_cairo_set_source_rgba (cr, &fg_color);
|
|
cairo_fill (cr);
|
|
|
|
cairo_restore (cr);
|
|
}
|
|
|
|
static void
|
|
add_path_line (cairo_t *cr,
|
|
gdouble x1,
|
|
gdouble y1,
|
|
gdouble x2,
|
|
gdouble y2)
|
|
{
|
|
/* Adjust endpoints */
|
|
if (y1 == y2)
|
|
{
|
|
y1 += 0.5;
|
|
y2 += 0.5;
|
|
x2 += 1;
|
|
}
|
|
else if (x1 == x2)
|
|
{
|
|
x1 += 0.5;
|
|
x2 += 0.5;
|
|
y2 += 1;
|
|
}
|
|
|
|
cairo_move_to (cr, x1, y1);
|
|
cairo_line_to (cr, x2, y2);
|
|
}
|
|
|
|
static void
|
|
color_shade (const GdkRGBA *color,
|
|
gdouble factor,
|
|
GdkRGBA *color_return)
|
|
{
|
|
GtkSymbolicColor *literal, *shade;
|
|
|
|
literal = gtk_symbolic_color_new_literal (color);
|
|
shade = gtk_symbolic_color_new_shade (literal, factor);
|
|
gtk_symbolic_color_unref (literal);
|
|
|
|
gtk_symbolic_color_resolve (shade, NULL, color_return);
|
|
gtk_symbolic_color_unref (shade);
|
|
}
|
|
|
|
static void
|
|
gtk_theming_engine_render_background (GtkThemingEngine *engine,
|
|
cairo_t *cr,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble width,
|
|
gdouble height)
|
|
{
|
|
GtkThemingBackground bg;
|
|
|
|
_gtk_theming_background_init (&bg, engine,
|
|
x, y,
|
|
width, height,
|
|
gtk_theming_engine_get_junction_sides (engine));
|
|
|
|
_gtk_theming_background_render (&bg, cr);
|
|
}
|
|
|
|
static void
|
|
gtk_theming_engine_hide_border_sides (GtkBorder *border,
|
|
guint hidden_side)
|
|
{
|
|
if (hidden_side & SIDE_TOP)
|
|
border->top = 0;
|
|
if (hidden_side & SIDE_RIGHT)
|
|
border->right = 0;
|
|
if (hidden_side & SIDE_BOTTOM)
|
|
border->bottom = 0;
|
|
if (hidden_side & SIDE_LEFT)
|
|
border->left = 0;
|
|
}
|
|
|
|
static void
|
|
render_frame_internal (GtkThemingEngine *engine,
|
|
cairo_t *cr,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble width,
|
|
gdouble height,
|
|
guint hidden_side,
|
|
GtkJunctionSides junction)
|
|
{
|
|
GtkStateFlags state;
|
|
GtkBorderStyle border_style;
|
|
GtkRoundedBox border_box, padding_box;
|
|
gdouble progress;
|
|
gboolean running;
|
|
GtkBorder border;
|
|
static const guint current_side[4] = { SIDE_TOP, SIDE_RIGHT, SIDE_BOTTOM, SIDE_LEFT };
|
|
GdkRGBA *colors[4];
|
|
guint i, j;
|
|
|
|
state = gtk_theming_engine_get_state (engine);
|
|
|
|
gtk_theming_engine_get_border (engine, state, &border);
|
|
gtk_theming_engine_hide_border_sides (&border, hidden_side);
|
|
|
|
gtk_theming_engine_get (engine, state,
|
|
"border-style", &border_style,
|
|
"border-top-color", &colors[0],
|
|
"border-right-color", &colors[1],
|
|
"border-bottom-color", &colors[2],
|
|
"border-left-color", &colors[3],
|
|
NULL);
|
|
|
|
running = gtk_theming_engine_state_is_running (engine, GTK_STATE_PRELIGHT, &progress);
|
|
|
|
if (running)
|
|
{
|
|
GtkStateFlags other_state;
|
|
GdkRGBA *other_colors[4];
|
|
|
|
if (state & GTK_STATE_FLAG_PRELIGHT)
|
|
{
|
|
other_state = state & ~(GTK_STATE_FLAG_PRELIGHT);
|
|
progress = 1 - progress;
|
|
}
|
|
else
|
|
other_state = state | GTK_STATE_FLAG_PRELIGHT;
|
|
|
|
gtk_theming_engine_get (engine, other_state,
|
|
"border-top-color", &other_colors[0],
|
|
"border-right-color", &other_colors[1],
|
|
"border-bottom-color", &other_colors[2],
|
|
"border-left-color", &other_colors[3],
|
|
NULL);
|
|
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
colors[i]->red = CLAMP (colors[i]->red + ((other_colors[i]->red - colors[i]->red) * progress), 0, 1);
|
|
colors[i]->green = CLAMP (colors[i]->green + ((other_colors[i]->green - colors[i]->green) * progress), 0, 1);
|
|
colors[i]->blue = CLAMP (colors[i]->blue + ((other_colors[i]->blue - colors[i]->blue) * progress), 0, 1);
|
|
colors[i]->alpha = CLAMP (colors[i]->alpha + ((other_colors[i]->alpha - colors[i]->alpha) * progress), 0, 1);
|
|
gdk_rgba_free (other_colors[i]);
|
|
}
|
|
}
|
|
|
|
switch (border_style)
|
|
{
|
|
default:
|
|
g_assert_not_reached ();
|
|
case GTK_BORDER_STYLE_NONE:
|
|
case GTK_BORDER_STYLE_SOLID:
|
|
break;
|
|
case GTK_BORDER_STYLE_INSET:
|
|
color_shade (colors[1], 1.8, colors[1]);
|
|
color_shade (colors[2], 1.8, colors[2]);
|
|
break;
|
|
case GTK_BORDER_STYLE_OUTSET:
|
|
color_shade (colors[0], 1.8, colors[0]);
|
|
color_shade (colors[3], 1.8, colors[3]);
|
|
break;
|
|
}
|
|
|
|
cairo_save (cr);
|
|
|
|
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
|
|
|
|
_gtk_rounded_box_init_rect (&border_box, x, y, width, height);
|
|
_gtk_rounded_box_apply_border_radius (&border_box, engine, state, junction);
|
|
padding_box = border_box;
|
|
_gtk_rounded_box_shrink (&padding_box, border.top, border.right, border.bottom, border.left);
|
|
|
|
switch (border_style)
|
|
{
|
|
case GTK_BORDER_STYLE_NONE:
|
|
break;
|
|
case GTK_BORDER_STYLE_SOLID:
|
|
case GTK_BORDER_STYLE_INSET:
|
|
case GTK_BORDER_STYLE_OUTSET:
|
|
|
|
if (gdk_rgba_equal (colors[0], colors[1]) &&
|
|
gdk_rgba_equal (colors[0], colors[2]) &&
|
|
gdk_rgba_equal (colors[0], colors[3]))
|
|
{
|
|
gdk_cairo_set_source_rgba (cr, colors[0]);
|
|
|
|
_gtk_rounded_box_path (&border_box, cr);
|
|
_gtk_rounded_box_path (&padding_box, cr);
|
|
cairo_fill (cr);
|
|
}
|
|
else
|
|
{
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
if (hidden_side & current_side[i])
|
|
continue;
|
|
|
|
for (j = 0; j < 4; j++)
|
|
{
|
|
if (hidden_side & current_side[j])
|
|
continue;
|
|
|
|
if (i == j ||
|
|
gdk_rgba_equal (colors[i], colors[j]))
|
|
{
|
|
/* We were already painted when i == j */
|
|
if (i > j)
|
|
break;
|
|
|
|
if (j == 0)
|
|
_gtk_rounded_box_path_top (&border_box, &padding_box, cr);
|
|
else if (j == 1)
|
|
_gtk_rounded_box_path_right (&border_box, &padding_box, cr);
|
|
else if (j == 2)
|
|
_gtk_rounded_box_path_bottom (&border_box, &padding_box, cr);
|
|
else if (j == 3)
|
|
_gtk_rounded_box_path_left (&border_box, &padding_box, cr);
|
|
}
|
|
}
|
|
/* We were already painted when i == j */
|
|
if (i > j)
|
|
continue;
|
|
|
|
gdk_cairo_set_source_rgba (cr, colors[i]);
|
|
|
|
cairo_fill (cr);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
cairo_restore (cr);
|
|
|
|
for (i = 0; i < 4; i++)
|
|
gdk_rgba_free (colors[i]);
|
|
}
|
|
|
|
static void
|
|
gtk_theming_engine_render_frame (GtkThemingEngine *engine,
|
|
cairo_t *cr,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble width,
|
|
gdouble height)
|
|
{
|
|
GtkStateFlags flags;
|
|
GtkBorderStyle border_style;
|
|
GtkJunctionSides junction;
|
|
GtkBorderImage *border_image;
|
|
GtkBorder border;
|
|
|
|
flags = gtk_theming_engine_get_state (engine);
|
|
junction = gtk_theming_engine_get_junction_sides (engine);
|
|
gtk_theming_engine_get_border (engine, flags, &border);
|
|
|
|
gtk_theming_engine_get (engine, flags,
|
|
"border-image", &border_image,
|
|
"border-style", &border_style,
|
|
NULL);
|
|
|
|
if (border_image != NULL)
|
|
{
|
|
_gtk_border_image_render (border_image, &border,
|
|
cr, x, y, width, height);
|
|
_gtk_border_image_unref (border_image);
|
|
}
|
|
else if (border_style != GTK_BORDER_STYLE_NONE)
|
|
render_frame_internal (engine, cr,
|
|
x, y, width, height,
|
|
0, junction);
|
|
}
|
|
|
|
static void
|
|
gtk_theming_engine_render_expander (GtkThemingEngine *engine,
|
|
cairo_t *cr,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble width,
|
|
gdouble height)
|
|
{
|
|
GtkStateFlags flags;
|
|
GdkRGBA outline_color, fg_color;
|
|
double vertical_overshoot;
|
|
int diameter;
|
|
double radius;
|
|
double interp; /* interpolation factor for center position */
|
|
double x_double_horz, y_double_horz;
|
|
double x_double_vert, y_double_vert;
|
|
double x_double, y_double;
|
|
gdouble angle;
|
|
gint line_width;
|
|
gboolean running, is_rtl;
|
|
gdouble progress;
|
|
|
|
cairo_save (cr);
|
|
flags = gtk_theming_engine_get_state (engine);
|
|
|
|
gtk_theming_engine_get_color (engine, flags, &fg_color);
|
|
gtk_theming_engine_get_border_color (engine, flags, &outline_color);
|
|
|
|
running = gtk_theming_engine_state_is_running (engine, GTK_STATE_ACTIVE, &progress);
|
|
is_rtl = (gtk_theming_engine_get_direction (engine) == GTK_TEXT_DIR_RTL);
|
|
line_width = 1;
|
|
|
|
if (!running)
|
|
progress = (flags & GTK_STATE_FLAG_ACTIVE) ? 1 : 0;
|
|
|
|
if (!gtk_theming_engine_has_class (engine, GTK_STYLE_CLASS_HORIZONTAL))
|
|
{
|
|
if (is_rtl)
|
|
angle = (G_PI) - ((G_PI / 2) * progress);
|
|
else
|
|
angle = (G_PI / 2) * progress;
|
|
}
|
|
else
|
|
{
|
|
if (is_rtl)
|
|
angle = (G_PI / 2) + ((G_PI / 2) * progress);
|
|
else
|
|
angle = (G_PI / 2) - ((G_PI / 2) * progress);
|
|
}
|
|
|
|
interp = progress;
|
|
|
|
/* Compute distance that the stroke extends beyonds the end
|
|
* of the triangle we draw.
|
|
*/
|
|
vertical_overshoot = line_width / 2.0 * (1. / tan (G_PI / 8));
|
|
|
|
/* For odd line widths, we end the vertical line of the triangle
|
|
* at a half pixel, so we round differently.
|
|
*/
|
|
if (line_width % 2 == 1)
|
|
vertical_overshoot = ceil (0.5 + vertical_overshoot) - 0.5;
|
|
else
|
|
vertical_overshoot = ceil (vertical_overshoot);
|
|
|
|
/* Adjust the size of the triangle we draw so that the entire stroke fits
|
|
*/
|
|
diameter = (gint) MAX (3, width - 2 * vertical_overshoot);
|
|
|
|
/* If the line width is odd, we want the diameter to be even,
|
|
* and vice versa, so force the sum to be odd. This relationship
|
|
* makes the point of the triangle look right.
|
|
*/
|
|
diameter -= (1 - (diameter + line_width) % 2);
|
|
|
|
radius = diameter / 2.;
|
|
|
|
/* Adjust the center so that the stroke is properly aligned with
|
|
* the pixel grid. The center adjustment is different for the
|
|
* horizontal and vertical orientations. For intermediate positions
|
|
* we interpolate between the two.
|
|
*/
|
|
x_double_vert = floor ((x + width / 2) - (radius + line_width) / 2.) + (radius + line_width) / 2.;
|
|
y_double_vert = (y + height / 2) - 0.5;
|
|
|
|
x_double_horz = (x + width / 2) - 0.5;
|
|
y_double_horz = floor ((y + height / 2) - (radius + line_width) / 2.) + (radius + line_width) / 2.;
|
|
|
|
x_double = x_double_vert * (1 - interp) + x_double_horz * interp;
|
|
y_double = y_double_vert * (1 - interp) + y_double_horz * interp;
|
|
|
|
cairo_translate (cr, x_double, y_double);
|
|
cairo_rotate (cr, angle);
|
|
|
|
cairo_move_to (cr, - radius / 2., - radius);
|
|
cairo_line_to (cr, radius / 2., 0);
|
|
cairo_line_to (cr, - radius / 2., radius);
|
|
cairo_close_path (cr);
|
|
|
|
cairo_set_line_width (cr, line_width);
|
|
|
|
gdk_cairo_set_source_rgba (cr, &fg_color);
|
|
|
|
cairo_fill_preserve (cr);
|
|
|
|
gdk_cairo_set_source_rgba (cr, &outline_color);
|
|
cairo_stroke (cr);
|
|
|
|
cairo_restore (cr);
|
|
}
|
|
|
|
static void
|
|
gtk_theming_engine_render_focus (GtkThemingEngine *engine,
|
|
cairo_t *cr,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble width,
|
|
gdouble height)
|
|
{
|
|
GtkStateFlags flags;
|
|
GdkRGBA color;
|
|
gint line_width;
|
|
gint8 *dash_list;
|
|
|
|
cairo_save (cr);
|
|
flags = gtk_theming_engine_get_state (engine);
|
|
|
|
gtk_theming_engine_get_color (engine, flags, &color);
|
|
|
|
gtk_theming_engine_get_style (engine,
|
|
"focus-line-width", &line_width,
|
|
"focus-line-pattern", (gchar *) &dash_list,
|
|
NULL);
|
|
|
|
cairo_set_line_width (cr, (gdouble) line_width);
|
|
|
|
if (dash_list[0])
|
|
{
|
|
gint n_dashes = strlen ((const gchar *) dash_list);
|
|
gdouble *dashes = g_new (gdouble, n_dashes);
|
|
gdouble total_length = 0;
|
|
gdouble dash_offset;
|
|
gint i;
|
|
|
|
for (i = 0; i < n_dashes; i++)
|
|
{
|
|
dashes[i] = dash_list[i];
|
|
total_length += dash_list[i];
|
|
}
|
|
|
|
/* The dash offset here aligns the pattern to integer pixels
|
|
* by starting the dash at the right side of the left border
|
|
* Negative dash offsets in cairo don't work
|
|
* (https://bugs.freedesktop.org/show_bug.cgi?id=2729)
|
|
*/
|
|
dash_offset = - line_width / 2.;
|
|
|
|
while (dash_offset < 0)
|
|
dash_offset += total_length;
|
|
|
|
cairo_set_dash (cr, dashes, n_dashes, dash_offset);
|
|
g_free (dashes);
|
|
}
|
|
|
|
cairo_rectangle (cr,
|
|
x + line_width / 2.,
|
|
y + line_width / 2.,
|
|
width - line_width,
|
|
height - line_width);
|
|
|
|
gdk_cairo_set_source_rgba (cr, &color);
|
|
cairo_stroke (cr);
|
|
|
|
cairo_restore (cr);
|
|
|
|
g_free (dash_list);
|
|
}
|
|
|
|
static void
|
|
gtk_theming_engine_render_line (GtkThemingEngine *engine,
|
|
cairo_t *cr,
|
|
gdouble x0,
|
|
gdouble y0,
|
|
gdouble x1,
|
|
gdouble y1)
|
|
{
|
|
GdkRGBA color;
|
|
GtkStateFlags flags;
|
|
|
|
flags = gtk_theming_engine_get_state (engine);
|
|
cairo_save (cr);
|
|
|
|
gtk_theming_engine_get_color (engine, flags, &color);
|
|
|
|
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
|
|
cairo_set_line_width (cr, 1);
|
|
|
|
cairo_move_to (cr, x0 + 0.5, y0 + 0.5);
|
|
cairo_line_to (cr, x1 + 0.5, y1 + 0.5);
|
|
|
|
gdk_cairo_set_source_rgba (cr, &color);
|
|
cairo_stroke (cr);
|
|
|
|
cairo_restore (cr);
|
|
}
|
|
|
|
static void
|
|
prepare_context_for_layout (cairo_t *cr,
|
|
gdouble x,
|
|
gdouble y,
|
|
PangoLayout *layout)
|
|
{
|
|
const PangoMatrix *matrix;
|
|
|
|
matrix = pango_context_get_matrix (pango_layout_get_context (layout));
|
|
|
|
cairo_move_to (cr, x, y);
|
|
|
|
if (matrix)
|
|
{
|
|
cairo_matrix_t cairo_matrix;
|
|
|
|
cairo_matrix_init (&cairo_matrix,
|
|
matrix->xx, matrix->yx,
|
|
matrix->xy, matrix->yy,
|
|
matrix->x0, matrix->y0);
|
|
|
|
cairo_transform (cr, &cairo_matrix);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_theming_engine_render_layout (GtkThemingEngine *engine,
|
|
cairo_t *cr,
|
|
gdouble x,
|
|
gdouble y,
|
|
PangoLayout *layout)
|
|
{
|
|
GdkRGBA fg_color;
|
|
GtkShadow *text_shadow = NULL;
|
|
GtkStateFlags flags;
|
|
gdouble progress;
|
|
gboolean running;
|
|
|
|
cairo_save (cr);
|
|
flags = gtk_theming_engine_get_state (engine);
|
|
gtk_theming_engine_get_color (engine, flags, &fg_color);
|
|
|
|
running = gtk_theming_engine_state_is_running (engine, GTK_STATE_PRELIGHT, &progress);
|
|
|
|
if (running)
|
|
{
|
|
GtkStateFlags other_flags;
|
|
GdkRGBA other_fg;
|
|
|
|
if (flags & GTK_STATE_FLAG_PRELIGHT)
|
|
{
|
|
other_flags = flags & ~(GTK_STATE_FLAG_PRELIGHT);
|
|
progress = 1 - progress;
|
|
}
|
|
else
|
|
other_flags = flags | GTK_STATE_FLAG_PRELIGHT;
|
|
|
|
gtk_theming_engine_get_color (engine, other_flags, &other_fg);
|
|
|
|
fg_color.red = CLAMP (fg_color.red + ((other_fg.red - fg_color.red) * progress), 0, 1);
|
|
fg_color.green = CLAMP (fg_color.green + ((other_fg.green - fg_color.green) * progress), 0, 1);
|
|
fg_color.blue = CLAMP (fg_color.blue + ((other_fg.blue - fg_color.blue) * progress), 0, 1);
|
|
fg_color.alpha = CLAMP (fg_color.alpha + ((other_fg.alpha - fg_color.alpha) * progress), 0, 1);
|
|
}
|
|
|
|
gtk_theming_engine_get (engine, flags,
|
|
"text-shadow", &text_shadow,
|
|
NULL);
|
|
|
|
prepare_context_for_layout (cr, x, y, layout);
|
|
|
|
if (text_shadow != NULL)
|
|
{
|
|
_gtk_text_shadow_paint_layout (text_shadow, cr, layout);
|
|
_gtk_shadow_unref (text_shadow);
|
|
}
|
|
|
|
gdk_cairo_set_source_rgba (cr, &fg_color);
|
|
pango_cairo_show_layout (cr, layout);
|
|
|
|
cairo_restore (cr);
|
|
}
|
|
|
|
static void
|
|
gtk_theming_engine_render_slider (GtkThemingEngine *engine,
|
|
cairo_t *cr,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble width,
|
|
gdouble height,
|
|
GtkOrientation orientation)
|
|
{
|
|
const GtkWidgetPath *path;
|
|
gint thickness;
|
|
|
|
path = gtk_theming_engine_get_path (engine);
|
|
|
|
gtk_theming_engine_render_background (engine, cr, x, y, width, height);
|
|
gtk_theming_engine_render_frame (engine, cr, x, y, width, height);
|
|
|
|
/* FIXME: thickness */
|
|
thickness = 2;
|
|
|
|
if (gtk_widget_path_is_type (path, GTK_TYPE_SCALE))
|
|
{
|
|
if (orientation == GTK_ORIENTATION_VERTICAL)
|
|
gtk_theming_engine_render_line (engine, cr,
|
|
x + thickness,
|
|
y + (gint) height / 2,
|
|
x + width - thickness - 1,
|
|
y + (gint) height / 2);
|
|
else
|
|
gtk_theming_engine_render_line (engine, cr,
|
|
x + (gint) width / 2,
|
|
y + thickness,
|
|
x + (gint) width / 2,
|
|
y + height - thickness - 1);
|
|
}
|
|
}
|
|
|
|
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)
|
|
{
|
|
GtkJunctionSides junction;
|
|
GtkStateFlags state;
|
|
gint border_width;
|
|
GtkCssBorderCornerRadius *top_left_radius, *top_right_radius;
|
|
GtkCssBorderCornerRadius *bottom_left_radius, *bottom_right_radius;
|
|
gdouble x0, y0, x1, y1, xc, yc, wc, hc;
|
|
GtkBorderImage *border_image;
|
|
GtkBorder border;
|
|
|
|
xc = yc = wc = hc = 0;
|
|
state = gtk_theming_engine_get_state (engine);
|
|
junction = gtk_theming_engine_get_junction_sides (engine);
|
|
|
|
gtk_theming_engine_get_border (engine, state, &border);
|
|
gtk_theming_engine_get (engine, state,
|
|
"border-image", &border_image,
|
|
"border-top-left-radius", &top_left_radius,
|
|
"border-top-right-radius", &top_right_radius,
|
|
"border-bottom-right-radius", &bottom_right_radius,
|
|
"border-bottom-left-radius", &bottom_left_radius,
|
|
NULL);
|
|
|
|
border_width = MIN (MIN (border.top, border.bottom),
|
|
MIN (border.left, border.right));
|
|
|
|
cairo_save (cr);
|
|
|
|
switch (gap_side)
|
|
{
|
|
case GTK_POS_TOP:
|
|
xc = x + xy0_gap + border_width;
|
|
yc = y;
|
|
wc = MAX (xy1_gap - xy0_gap - 2 * border_width, 0);
|
|
hc = border_width;
|
|
|
|
if (xy0_gap < top_left_radius->horizontal)
|
|
junction |= GTK_JUNCTION_CORNER_TOPLEFT;
|
|
|
|
if (xy1_gap > width - top_right_radius->horizontal)
|
|
junction |= GTK_JUNCTION_CORNER_TOPRIGHT;
|
|
break;
|
|
case GTK_POS_BOTTOM:
|
|
xc = x + xy0_gap + border_width;
|
|
yc = y + height - border_width;
|
|
wc = MAX (xy1_gap - xy0_gap - 2 * border_width, 0);
|
|
hc = border_width;
|
|
|
|
if (xy0_gap < bottom_left_radius->horizontal)
|
|
junction |= GTK_JUNCTION_CORNER_BOTTOMLEFT;
|
|
|
|
if (xy1_gap > width - bottom_right_radius->horizontal)
|
|
junction |= GTK_JUNCTION_CORNER_BOTTOMRIGHT;
|
|
|
|
break;
|
|
case GTK_POS_LEFT:
|
|
xc = x;
|
|
yc = y + xy0_gap + border_width;
|
|
wc = border_width;
|
|
hc = MAX (xy1_gap - xy0_gap - 2 * border_width, 0);
|
|
|
|
if (xy0_gap < top_left_radius->vertical)
|
|
junction |= GTK_JUNCTION_CORNER_TOPLEFT;
|
|
|
|
if (xy1_gap > height - bottom_left_radius->vertical)
|
|
junction |= GTK_JUNCTION_CORNER_BOTTOMLEFT;
|
|
|
|
break;
|
|
case GTK_POS_RIGHT:
|
|
xc = x + width - border_width;
|
|
yc = y + xy0_gap + border_width;
|
|
wc = border_width;
|
|
hc = MAX (xy1_gap - xy0_gap - 2 * border_width, 0);
|
|
|
|
if (xy0_gap < top_right_radius->vertical)
|
|
junction |= GTK_JUNCTION_CORNER_TOPRIGHT;
|
|
|
|
if (xy1_gap > height - bottom_right_radius->vertical)
|
|
junction |= GTK_JUNCTION_CORNER_BOTTOMRIGHT;
|
|
|
|
break;
|
|
}
|
|
|
|
cairo_clip_extents (cr, &x0, &y0, &x1, &y1);
|
|
cairo_rectangle (cr, x0, y0, x1 - x0, yc - y0);
|
|
cairo_rectangle (cr, x0, yc, xc - x0, hc);
|
|
cairo_rectangle (cr, xc + wc, yc, x1 - (xc + wc), hc);
|
|
cairo_rectangle (cr, x0, yc + hc, x1 - x0, y1 - (yc + hc));
|
|
cairo_clip (cr);
|
|
|
|
if (border_image != NULL)
|
|
{
|
|
_gtk_border_image_render (border_image, &border,
|
|
cr, x, y, width, height);
|
|
_gtk_border_image_unref (border_image);
|
|
}
|
|
else
|
|
render_frame_internal (engine, cr,
|
|
x, y, width, height,
|
|
0, junction);
|
|
|
|
cairo_restore (cr);
|
|
|
|
g_free (top_left_radius);
|
|
g_free (top_right_radius);
|
|
g_free (bottom_right_radius);
|
|
g_free (bottom_left_radius);
|
|
}
|
|
|
|
static void
|
|
gtk_theming_engine_render_extension (GtkThemingEngine *engine,
|
|
cairo_t *cr,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble width,
|
|
gdouble height,
|
|
GtkPositionType gap_side)
|
|
{
|
|
GtkThemingBackground bg;
|
|
GtkJunctionSides junction = 0;
|
|
guint hidden_side = 0;
|
|
|
|
cairo_save (cr);
|
|
|
|
switch (gap_side)
|
|
{
|
|
case GTK_POS_LEFT:
|
|
junction = GTK_JUNCTION_LEFT;
|
|
hidden_side = SIDE_LEFT;
|
|
|
|
cairo_translate (cr, x + width, y);
|
|
cairo_rotate (cr, G_PI / 2);
|
|
break;
|
|
case GTK_POS_RIGHT:
|
|
junction = GTK_JUNCTION_RIGHT;
|
|
hidden_side = SIDE_RIGHT;
|
|
|
|
cairo_translate (cr, x, y + height);
|
|
cairo_rotate (cr, - G_PI / 2);
|
|
break;
|
|
case GTK_POS_TOP:
|
|
junction = GTK_JUNCTION_TOP;
|
|
hidden_side = SIDE_TOP;
|
|
|
|
cairo_translate (cr, x + width, y + height);
|
|
cairo_rotate (cr, G_PI);
|
|
break;
|
|
case GTK_POS_BOTTOM:
|
|
junction = GTK_JUNCTION_BOTTOM;
|
|
hidden_side = SIDE_BOTTOM;
|
|
|
|
cairo_translate (cr, x, y);
|
|
break;
|
|
}
|
|
|
|
if (gap_side == GTK_POS_TOP ||
|
|
gap_side == GTK_POS_BOTTOM)
|
|
_gtk_theming_background_init (&bg, engine,
|
|
0, 0,
|
|
width, height,
|
|
GTK_JUNCTION_BOTTOM);
|
|
else
|
|
_gtk_theming_background_init (&bg, engine,
|
|
0, 0,
|
|
height, width,
|
|
GTK_JUNCTION_BOTTOM);
|
|
|
|
_gtk_theming_background_render (&bg, cr);
|
|
|
|
cairo_restore (cr);
|
|
|
|
cairo_save (cr);
|
|
|
|
render_frame_internal (engine, cr,
|
|
x, y, width, height,
|
|
hidden_side, junction);
|
|
|
|
cairo_restore (cr);
|
|
}
|
|
|
|
static void
|
|
render_dot (cairo_t *cr,
|
|
const GdkRGBA *lighter,
|
|
const GdkRGBA *darker,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble size)
|
|
{
|
|
size = CLAMP ((gint) size, 2, 3);
|
|
|
|
if (size == 2)
|
|
{
|
|
gdk_cairo_set_source_rgba (cr, lighter);
|
|
cairo_rectangle (cr, x, y, 1, 1);
|
|
cairo_rectangle (cr, x + 1, y + 1, 1, 1);
|
|
cairo_fill (cr);
|
|
}
|
|
else if (size == 3)
|
|
{
|
|
gdk_cairo_set_source_rgba (cr, lighter);
|
|
cairo_rectangle (cr, x, y, 2, 1);
|
|
cairo_rectangle (cr, x, y, 1, 2);
|
|
cairo_fill (cr);
|
|
|
|
gdk_cairo_set_source_rgba (cr, darker);
|
|
cairo_rectangle (cr, x + 1, y + 1, 2, 1);
|
|
cairo_rectangle (cr, x + 2, y, 1, 2);
|
|
cairo_fill (cr);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_theming_engine_render_handle (GtkThemingEngine *engine,
|
|
cairo_t *cr,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble width,
|
|
gdouble height)
|
|
{
|
|
GtkStateFlags flags;
|
|
GdkRGBA bg_color, lighter, darker;
|
|
GtkJunctionSides sides;
|
|
GtkThemingBackground bg;
|
|
gint xx, yy;
|
|
|
|
cairo_save (cr);
|
|
flags = gtk_theming_engine_get_state (engine);
|
|
|
|
cairo_set_line_width (cr, 1.0);
|
|
sides = gtk_theming_engine_get_junction_sides (engine);
|
|
gtk_theming_engine_get_background_color (engine, flags, &bg_color);
|
|
|
|
color_shade (&bg_color, 0.7, &darker);
|
|
color_shade (&bg_color, 1.3, &lighter);
|
|
|
|
_gtk_theming_background_init (&bg, engine, x, y, width, height, sides);
|
|
_gtk_theming_background_render (&bg, cr);
|
|
|
|
if (gtk_theming_engine_has_class (engine, GTK_STYLE_CLASS_GRIP))
|
|
{
|
|
/* reduce confusing values to a meaningful state */
|
|
if ((sides & (GTK_JUNCTION_CORNER_TOPLEFT | GTK_JUNCTION_CORNER_BOTTOMRIGHT)) == (GTK_JUNCTION_CORNER_TOPLEFT | GTK_JUNCTION_CORNER_BOTTOMRIGHT))
|
|
sides &= ~GTK_JUNCTION_CORNER_TOPLEFT;
|
|
|
|
if ((sides & (GTK_JUNCTION_CORNER_TOPRIGHT | GTK_JUNCTION_CORNER_BOTTOMLEFT)) == (GTK_JUNCTION_CORNER_TOPRIGHT | GTK_JUNCTION_CORNER_BOTTOMLEFT))
|
|
sides &= ~GTK_JUNCTION_CORNER_TOPRIGHT;
|
|
|
|
if (sides == 0)
|
|
sides = GTK_JUNCTION_CORNER_BOTTOMRIGHT;
|
|
|
|
/* align drawing area to the connected side */
|
|
if (sides == GTK_JUNCTION_LEFT)
|
|
{
|
|
if (height < width)
|
|
width = height;
|
|
}
|
|
else if (sides == GTK_JUNCTION_CORNER_TOPLEFT)
|
|
{
|
|
if (width < height)
|
|
height = width;
|
|
else if (height < width)
|
|
width = height;
|
|
}
|
|
else if (sides == GTK_JUNCTION_CORNER_BOTTOMLEFT)
|
|
{
|
|
/* make it square, aligning to bottom left */
|
|
if (width < height)
|
|
{
|
|
y += (height - width);
|
|
height = width;
|
|
}
|
|
else if (height < width)
|
|
width = height;
|
|
}
|
|
else if (sides == GTK_JUNCTION_RIGHT)
|
|
{
|
|
/* aligning to right */
|
|
if (height < width)
|
|
{
|
|
x += (width - height);
|
|
width = height;
|
|
}
|
|
}
|
|
else if (sides == GTK_JUNCTION_CORNER_TOPRIGHT)
|
|
{
|
|
if (width < height)
|
|
height = width;
|
|
else if (height < width)
|
|
{
|
|
x += (width - height);
|
|
width = height;
|
|
}
|
|
}
|
|
else if (sides == GTK_JUNCTION_CORNER_BOTTOMRIGHT)
|
|
{
|
|
/* make it square, aligning to bottom right */
|
|
if (width < height)
|
|
{
|
|
y += (height - width);
|
|
height = width;
|
|
}
|
|
else if (height < width)
|
|
{
|
|
x += (width - height);
|
|
width = height;
|
|
}
|
|
}
|
|
else if (sides == GTK_JUNCTION_TOP)
|
|
{
|
|
if (width < height)
|
|
height = width;
|
|
}
|
|
else if (sides == GTK_JUNCTION_BOTTOM)
|
|
{
|
|
/* align to bottom */
|
|
if (width < height)
|
|
{
|
|
y += (height - width);
|
|
height = width;
|
|
}
|
|
}
|
|
else
|
|
g_assert_not_reached ();
|
|
|
|
if (sides == GTK_JUNCTION_LEFT ||
|
|
sides == GTK_JUNCTION_RIGHT)
|
|
{
|
|
gint xi;
|
|
|
|
xi = x;
|
|
|
|
while (xi < x + width)
|
|
{
|
|
gdk_cairo_set_source_rgba (cr, &lighter);
|
|
add_path_line (cr, x, y, x, y + height);
|
|
cairo_stroke (cr);
|
|
xi++;
|
|
|
|
gdk_cairo_set_source_rgba (cr, &darker);
|
|
add_path_line (cr, xi, y, xi, y + height);
|
|
cairo_stroke (cr);
|
|
xi += 2;
|
|
}
|
|
}
|
|
else if (sides == GTK_JUNCTION_TOP ||
|
|
sides == GTK_JUNCTION_BOTTOM)
|
|
{
|
|
gint yi;
|
|
|
|
yi = y;
|
|
|
|
while (yi < y + height)
|
|
{
|
|
gdk_cairo_set_source_rgba (cr, &lighter);
|
|
add_path_line (cr, x, yi, x + width, yi);
|
|
cairo_stroke (cr);
|
|
yi++;
|
|
|
|
gdk_cairo_set_source_rgba (cr, &darker);
|
|
add_path_line (cr, x, yi, x + width, yi);
|
|
cairo_stroke (cr);
|
|
yi += 2;
|
|
}
|
|
}
|
|
else if (sides == GTK_JUNCTION_CORNER_TOPLEFT)
|
|
{
|
|
gint xi, yi;
|
|
|
|
xi = x + width;
|
|
yi = y + height;
|
|
|
|
while (xi > x + 3)
|
|
{
|
|
gdk_cairo_set_source_rgba (cr, &darker);
|
|
add_path_line (cr, xi, y, x, yi);
|
|
cairo_stroke (cr);
|
|
|
|
--xi;
|
|
--yi;
|
|
|
|
add_path_line (cr, xi, y, x, yi);
|
|
cairo_stroke (cr);
|
|
|
|
--xi;
|
|
--yi;
|
|
|
|
gdk_cairo_set_source_rgba (cr, &lighter);
|
|
add_path_line (cr, xi, y, x, yi);
|
|
cairo_stroke (cr);
|
|
|
|
xi -= 3;
|
|
yi -= 3;
|
|
}
|
|
}
|
|
else if (sides == GTK_JUNCTION_CORNER_TOPRIGHT)
|
|
{
|
|
gint xi, yi;
|
|
|
|
xi = x;
|
|
yi = y + height;
|
|
|
|
while (xi < (x + width - 3))
|
|
{
|
|
gdk_cairo_set_source_rgba (cr, &lighter);
|
|
add_path_line (cr, xi, y, x + width, yi);
|
|
cairo_stroke (cr);
|
|
|
|
++xi;
|
|
--yi;
|
|
|
|
gdk_cairo_set_source_rgba (cr, &darker);
|
|
add_path_line (cr, xi, y, x + width, yi);
|
|
cairo_stroke (cr);
|
|
|
|
++xi;
|
|
--yi;
|
|
|
|
add_path_line (cr, xi, y, x + width, yi);
|
|
cairo_stroke (cr);
|
|
|
|
xi += 3;
|
|
yi -= 3;
|
|
}
|
|
}
|
|
else if (sides == GTK_JUNCTION_CORNER_BOTTOMLEFT)
|
|
{
|
|
gint xi, yi;
|
|
|
|
xi = x + width;
|
|
yi = y;
|
|
|
|
while (xi > x + 3)
|
|
{
|
|
gdk_cairo_set_source_rgba (cr, &darker);
|
|
add_path_line (cr, x, yi, xi, y + height);
|
|
cairo_stroke (cr);
|
|
|
|
--xi;
|
|
++yi;
|
|
|
|
add_path_line (cr, x, yi, xi, y + height);
|
|
cairo_stroke (cr);
|
|
|
|
--xi;
|
|
++yi;
|
|
|
|
gdk_cairo_set_source_rgba (cr, &lighter);
|
|
add_path_line (cr, x, yi, xi, y + height);
|
|
cairo_stroke (cr);
|
|
|
|
xi -= 3;
|
|
yi += 3;
|
|
}
|
|
}
|
|
else if (sides == GTK_JUNCTION_CORNER_BOTTOMRIGHT)
|
|
{
|
|
gint xi, yi;
|
|
|
|
xi = x;
|
|
yi = y;
|
|
|
|
while (xi < (x + width - 3))
|
|
{
|
|
gdk_cairo_set_source_rgba (cr, &lighter);
|
|
add_path_line (cr, xi, y + height, x + width, yi);
|
|
cairo_stroke (cr);
|
|
|
|
++xi;
|
|
++yi;
|
|
|
|
gdk_cairo_set_source_rgba (cr, &darker);
|
|
add_path_line (cr, xi, y + height, x + width, yi);
|
|
cairo_stroke (cr);
|
|
|
|
++xi;
|
|
++yi;
|
|
|
|
add_path_line (cr, xi, y + height, x + width, yi);
|
|
cairo_stroke (cr);
|
|
|
|
xi += 3;
|
|
yi += 3;
|
|
}
|
|
}
|
|
}
|
|
else if (gtk_theming_engine_has_class (engine, GTK_STYLE_CLASS_PANE_SEPARATOR))
|
|
{
|
|
if (width > height)
|
|
for (xx = x + width / 2 - 15; xx <= x + width / 2 + 15; xx += 5)
|
|
render_dot (cr, &lighter, &darker, xx, y + height / 2 - 1, 3);
|
|
else
|
|
for (yy = y + height / 2 - 15; yy <= y + height / 2 + 15; yy += 5)
|
|
render_dot (cr, &lighter, &darker, x + width / 2 - 1, yy, 3);
|
|
}
|
|
else
|
|
{
|
|
for (yy = y; yy < y + height; yy += 3)
|
|
for (xx = x; xx < x + width; xx += 6)
|
|
{
|
|
render_dot (cr, &lighter, &darker, xx, yy, 2);
|
|
render_dot (cr, &lighter, &darker, xx + 3, yy + 1, 2);
|
|
}
|
|
}
|
|
|
|
cairo_restore (cr);
|
|
}
|
|
|
|
void
|
|
_gtk_theming_engine_paint_spinner (cairo_t *cr,
|
|
gdouble radius,
|
|
gdouble progress,
|
|
GdkRGBA *color)
|
|
{
|
|
guint num_steps, step;
|
|
gdouble half;
|
|
gint i;
|
|
|
|
num_steps = 12;
|
|
|
|
if (progress >= 0)
|
|
step = (guint) (progress * num_steps);
|
|
else
|
|
step = 0;
|
|
|
|
cairo_save (cr);
|
|
|
|
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
|
|
cairo_set_line_width (cr, 2.0);
|
|
|
|
half = num_steps / 2;
|
|
|
|
for (i = 0; i < num_steps; i++)
|
|
{
|
|
gint inset = 0.7 * radius;
|
|
|
|
/* transparency is a function of time and intial value */
|
|
gdouble t = 1.0 - (gdouble) ((i + step) % num_steps) / num_steps;
|
|
gdouble xscale = - sin (i * G_PI / half);
|
|
gdouble yscale = - cos (i * G_PI / half);
|
|
|
|
cairo_set_source_rgba (cr,
|
|
color->red,
|
|
color->green,
|
|
color->blue,
|
|
color->alpha * t);
|
|
|
|
cairo_move_to (cr,
|
|
(radius - inset) * xscale,
|
|
(radius - inset) * yscale);
|
|
cairo_line_to (cr,
|
|
radius * xscale,
|
|
radius * yscale);
|
|
|
|
cairo_stroke (cr);
|
|
}
|
|
|
|
cairo_restore (cr);
|
|
}
|
|
|
|
static void
|
|
render_spinner (GtkThemingEngine *engine,
|
|
cairo_t *cr,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble width,
|
|
gdouble height)
|
|
{
|
|
GtkStateFlags state;
|
|
GtkShadow *shadow;
|
|
GdkRGBA color;
|
|
gdouble progress;
|
|
gdouble radius;
|
|
|
|
state = gtk_theming_engine_get_state (engine);
|
|
|
|
if (!gtk_theming_engine_state_is_running (engine, GTK_STATE_ACTIVE, &progress))
|
|
progress = -1;
|
|
|
|
radius = MIN (width / 2, height / 2);
|
|
|
|
gtk_theming_engine_get_color (engine, state, &color);
|
|
gtk_theming_engine_get (engine, state,
|
|
"icon-shadow", &shadow,
|
|
NULL);
|
|
|
|
cairo_save (cr);
|
|
cairo_translate (cr, x + width / 2, y + height / 2);
|
|
|
|
if (shadow != NULL)
|
|
{
|
|
_gtk_icon_shadow_paint_spinner (shadow, cr,
|
|
radius,
|
|
progress);
|
|
_gtk_shadow_unref (shadow);
|
|
}
|
|
|
|
_gtk_theming_engine_paint_spinner (cr,
|
|
radius,
|
|
progress,
|
|
&color);
|
|
|
|
cairo_restore (cr);
|
|
}
|
|
|
|
static void
|
|
gtk_theming_engine_render_activity (GtkThemingEngine *engine,
|
|
cairo_t *cr,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble width,
|
|
gdouble height)
|
|
{
|
|
if (gtk_theming_engine_has_class (engine, GTK_STYLE_CLASS_SPINNER))
|
|
{
|
|
render_spinner (engine, cr, x, y, width, height);
|
|
}
|
|
else
|
|
{
|
|
gtk_theming_engine_render_background (engine, cr, x, y, width, height);
|
|
gtk_theming_engine_render_frame (engine, cr, x, y, width, height);
|
|
}
|
|
}
|
|
|
|
static GdkPixbuf *
|
|
scale_or_ref (GdkPixbuf *src,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
if (width == gdk_pixbuf_get_width (src) &&
|
|
height == gdk_pixbuf_get_height (src))
|
|
return g_object_ref (src);
|
|
else
|
|
return gdk_pixbuf_scale_simple (src,
|
|
width, height,
|
|
GDK_INTERP_BILINEAR);
|
|
}
|
|
|
|
static gboolean
|
|
lookup_icon_size (GtkThemingEngine *engine,
|
|
GtkIconSize size,
|
|
gint *width,
|
|
gint *height)
|
|
{
|
|
GdkScreen *screen;
|
|
GtkSettings *settings;
|
|
|
|
screen = gtk_theming_engine_get_screen (engine);
|
|
settings = gtk_settings_get_for_screen (screen);
|
|
|
|
return gtk_icon_size_lookup_for_settings (settings, size, width, height);
|
|
}
|
|
|
|
static void
|
|
colorshift_source (cairo_t *cr,
|
|
gdouble shift)
|
|
{
|
|
cairo_pattern_t *source;
|
|
|
|
cairo_save (cr);
|
|
cairo_paint (cr);
|
|
|
|
source = cairo_pattern_reference (cairo_get_source (cr));
|
|
|
|
cairo_set_source_rgb (cr, shift, shift, shift);
|
|
cairo_set_operator (cr, CAIRO_OPERATOR_COLOR_DODGE);
|
|
|
|
cairo_mask (cr, source);
|
|
|
|
cairo_pattern_destroy (source);
|
|
cairo_restore (cr);
|
|
}
|
|
|
|
static GdkPixbuf *
|
|
gtk_theming_engine_render_icon_pixbuf (GtkThemingEngine *engine,
|
|
const GtkIconSource *source,
|
|
GtkIconSize size)
|
|
{
|
|
GdkPixbuf *scaled;
|
|
GdkPixbuf *stated;
|
|
GdkPixbuf *base_pixbuf;
|
|
GtkStateFlags state;
|
|
gint width = 1;
|
|
gint height = 1;
|
|
cairo_t *cr;
|
|
cairo_surface_t *surface;
|
|
|
|
base_pixbuf = gtk_icon_source_get_pixbuf (source);
|
|
state = gtk_theming_engine_get_state (engine);
|
|
|
|
g_return_val_if_fail (base_pixbuf != NULL, NULL);
|
|
|
|
if (size != (GtkIconSize) -1 &&
|
|
!lookup_icon_size (engine, size, &width, &height))
|
|
{
|
|
g_warning (G_STRLOC ": invalid icon size '%d'", size);
|
|
return NULL;
|
|
}
|
|
|
|
/* If the size was wildcarded, and we're allowed to scale, then scale; otherwise,
|
|
* leave it alone.
|
|
*/
|
|
if (size != (GtkIconSize) -1 &&
|
|
gtk_icon_source_get_size_wildcarded (source))
|
|
scaled = scale_or_ref (base_pixbuf, width, height);
|
|
else
|
|
scaled = g_object_ref (base_pixbuf);
|
|
|
|
/* If the state was wildcarded, then generate a state. */
|
|
if (gtk_icon_source_get_state_wildcarded (source))
|
|
{
|
|
if (state & GTK_STATE_FLAG_INSENSITIVE)
|
|
{
|
|
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
|
|
gdk_pixbuf_get_width (scaled),
|
|
gdk_pixbuf_get_height (scaled));
|
|
cr = cairo_create (surface);
|
|
gdk_cairo_set_source_pixbuf (cr, scaled, 0, 0);
|
|
cairo_paint_with_alpha (cr, 0.5);
|
|
|
|
cairo_destroy (cr);
|
|
|
|
g_object_unref (scaled);
|
|
stated = gdk_pixbuf_get_from_surface (surface, 0, 0,
|
|
cairo_image_surface_get_width (surface),
|
|
cairo_image_surface_get_height (surface));
|
|
cairo_surface_destroy (surface);
|
|
}
|
|
else if (state & GTK_STATE_FLAG_PRELIGHT)
|
|
{
|
|
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
|
|
gdk_pixbuf_get_width (scaled),
|
|
gdk_pixbuf_get_height (scaled));
|
|
|
|
cr = cairo_create (surface);
|
|
gdk_cairo_set_source_pixbuf (cr, scaled, 0, 0);
|
|
colorshift_source (cr, 0.10);
|
|
|
|
cairo_destroy (cr);
|
|
|
|
g_object_unref (scaled);
|
|
stated = gdk_pixbuf_get_from_surface (surface, 0, 0,
|
|
cairo_image_surface_get_width (surface),
|
|
cairo_image_surface_get_height (surface));
|
|
cairo_surface_destroy (surface);
|
|
}
|
|
else
|
|
stated = scaled;
|
|
}
|
|
else
|
|
stated = scaled;
|
|
|
|
return stated;
|
|
}
|
|
|
|
static void
|
|
gtk_theming_engine_render_icon (GtkThemingEngine *engine,
|
|
cairo_t *cr,
|
|
GdkPixbuf *pixbuf,
|
|
gdouble x,
|
|
gdouble y)
|
|
{
|
|
GtkStateFlags state;
|
|
GtkShadow *icon_shadow;
|
|
|
|
state = gtk_theming_engine_get_state (engine);
|
|
|
|
cairo_save (cr);
|
|
|
|
gdk_cairo_set_source_pixbuf (cr, pixbuf, x, y);
|
|
|
|
gtk_theming_engine_get (engine, state,
|
|
"icon-shadow", &icon_shadow,
|
|
NULL);
|
|
|
|
if (icon_shadow != NULL)
|
|
{
|
|
_gtk_icon_shadow_paint (icon_shadow, cr);
|
|
_gtk_shadow_unref (icon_shadow);
|
|
}
|
|
|
|
cairo_paint (cr);
|
|
|
|
cairo_restore (cr);
|
|
}
|
|
|