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gtk2/gtk/gtkstyle.c
Carlos Garnacho 56c3d4b1be Remove dead Gtk[Rc]Style code 
Most code in gtkrc.c has been turned into a no-op, but that one
reverting in public API (gtk_rc_scanner_new() and such). GtStyle
is also more shallow, now fully relies in the backing
GtkStyleContext and all connection to gtkrc.c has been removed.

GtkBinding has been also affected, there is no replacement yet
for custom keybindings in style files, so that piece of code that
hooked into gtkrc has been replaced by a FIXME so in the future
it may be added back.
2010-12-18 12:10:00 +01:00

4099 lines
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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <gobject/gvaluecollector.h>
#include "gtkmarshalers.h"
#include "gtkpango.h"
#include "gtkrc.h"
#include "gtkspinbutton.h"
#include "gtkstyle.h"
#include "gtkwidget.h"
#include "gtkthemes.h"
#include "gtkiconfactory.h"
#include "gtksettings.h" /* _gtk_settings_parse_convert() */
#include "gtkintl.h"
#include "gtkdebug.h"
#include "gtkspinner.h"
#include "gtkborder.h"
/**
* SECTION:gtkstyle
* @Short_description: An object that hold style information for widgets
* @Title: GtkStyle
*
* A #GtkStyle object encapsulates the information that provides the look and
* feel for a widget. Each #GtkWidget has an associated #GTkStyle object that
* is used when rendering that widget. Also, a #GtkStyle holds information for
* the five possible widget states though not every widget supports all five
* states; see #GtkStateType.
*
* Usually the #GtkStyle for a widget is the same as the default style that is
* set by GTK+ and modified the theme engine.
*
* Usually applications should not need to use or modify the #GtkStyle of their
* widgets.
*
* <warning>
* In GTK+ 3.0, GtkStyle has been deprecated and replaced by #GtkStyleContext.
* </warning>
*/
#define LIGHTNESS_MULT 1.3
#define DARKNESS_MULT 0.7
/* --- typedefs & structures --- */
typedef struct {
GType widget_type;
GParamSpec *pspec;
GValue value;
} PropertyValue;
#define GTK_STYLE_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_STYLE, GtkStylePrivate))
typedef struct _GtkStylePrivate GtkStylePrivate;
struct _GtkStylePrivate {
GtkStyleContext *context;
gulong context_changed_id;
};
enum {
PROP_0,
PROP_CONTEXT
};
/* --- prototypes --- */
static void gtk_style_finalize (GObject *object);
static void gtk_style_constructed (GObject *object);
static void gtk_style_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_style_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_style_real_realize (GtkStyle *style);
static void gtk_style_real_unrealize (GtkStyle *style);
static void gtk_style_real_copy (GtkStyle *style,
GtkStyle *src);
static void gtk_style_real_set_background (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type);
static GtkStyle *gtk_style_real_clone (GtkStyle *style);
static void gtk_style_real_init_from_rc (GtkStyle *style,
GtkRcStyle *rc_style);
static GdkPixbuf *gtk_default_render_icon (GtkStyle *style,
const GtkIconSource *source,
GtkTextDirection direction,
GtkStateType state,
GtkIconSize size,
GtkWidget *widget,
const gchar *detail);
static void gtk_default_draw_hline (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint x1,
gint x2,
gint y);
static void gtk_default_draw_vline (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint y1,
gint y2,
gint x);
static void gtk_default_draw_shadow (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
static void gtk_default_draw_arrow (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
GtkArrowType arrow_type,
gboolean fill,
gint x,
gint y,
gint width,
gint height);
static void gtk_default_draw_diamond (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
static void gtk_default_draw_box (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
static void gtk_default_draw_flat_box (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
static void gtk_default_draw_check (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
static void gtk_default_draw_option (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
static void gtk_default_draw_tab (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
static void gtk_default_draw_shadow_gap (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkPositionType gap_side,
gint gap_x,
gint gap_width);
static void gtk_default_draw_box_gap (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkPositionType gap_side,
gint gap_x,
gint gap_width);
static void gtk_default_draw_extension (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkPositionType gap_side);
static void gtk_default_draw_focus (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height);
static void gtk_default_draw_slider (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkOrientation orientation);
static void gtk_default_draw_handle (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkOrientation orientation);
static void gtk_default_draw_expander (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
GtkExpanderStyle expander_style);
static void gtk_default_draw_layout (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
gboolean use_text,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
PangoLayout *layout);
static void gtk_default_draw_resize_grip (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
GdkWindowEdge edge,
gint x,
gint y,
gint width,
gint height);
static void gtk_default_draw_spinner (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
guint step,
gint x,
gint y,
gint width,
gint height);
static void rgb_to_hls (gdouble *r,
gdouble *g,
gdouble *b);
static void hls_to_rgb (gdouble *h,
gdouble *l,
gdouble *s);
static void transform_detail_string (const gchar *detail,
GtkStyleContext *context);
/*
* Data for default check and radio buttons
*/
static const GtkRequisition default_option_indicator_size = { 7, 13 };
static const GtkBorder default_option_indicator_spacing = { 7, 5, 2, 2 };
#define GTK_GRAY 0xdcdc, 0xdada, 0xd5d5
#define GTK_DARK_GRAY 0xc4c4, 0xc2c2, 0xbdbd
#define GTK_LIGHT_GRAY 0xeeee, 0xebeb, 0xe7e7
#define GTK_WHITE 0xffff, 0xffff, 0xffff
#define GTK_BLUE 0x4b4b, 0x6969, 0x8383
#define GTK_VERY_DARK_GRAY 0x9c9c, 0x9a9a, 0x9494
#define GTK_BLACK 0x0000, 0x0000, 0x0000
#define GTK_WEAK_GRAY 0x7530, 0x7530, 0x7530
/* --- variables --- */
static const GdkColor gtk_default_normal_fg = { 0, GTK_BLACK };
static const GdkColor gtk_default_active_fg = { 0, GTK_BLACK };
static const GdkColor gtk_default_prelight_fg = { 0, GTK_BLACK };
static const GdkColor gtk_default_selected_fg = { 0, GTK_WHITE };
static const GdkColor gtk_default_insensitive_fg = { 0, GTK_WEAK_GRAY };
static const GdkColor gtk_default_normal_bg = { 0, GTK_GRAY };
static const GdkColor gtk_default_active_bg = { 0, GTK_DARK_GRAY };
static const GdkColor gtk_default_prelight_bg = { 0, GTK_LIGHT_GRAY };
static const GdkColor gtk_default_selected_bg = { 0, GTK_BLUE };
static const GdkColor gtk_default_insensitive_bg = { 0, GTK_GRAY };
static const GdkColor gtk_default_selected_base = { 0, GTK_BLUE };
static const GdkColor gtk_default_active_base = { 0, GTK_VERY_DARK_GRAY };
/* --- signals --- */
static guint realize_signal = 0;
static guint unrealize_signal = 0;
G_DEFINE_TYPE (GtkStyle, gtk_style, G_TYPE_OBJECT)
/* --- functions --- */
static void
gtk_style_init (GtkStyle *style)
{
gint i;
style->font_desc = pango_font_description_from_string ("Sans 10");
style->attach_count = 0;
style->black.red = 0;
style->black.green = 0;
style->black.blue = 0;
style->white.red = 65535;
style->white.green = 65535;
style->white.blue = 65535;
style->fg[GTK_STATE_NORMAL] = gtk_default_normal_fg;
style->fg[GTK_STATE_ACTIVE] = gtk_default_active_fg;
style->fg[GTK_STATE_PRELIGHT] = gtk_default_prelight_fg;
style->fg[GTK_STATE_SELECTED] = gtk_default_selected_fg;
style->fg[GTK_STATE_INSENSITIVE] = gtk_default_insensitive_fg;
style->bg[GTK_STATE_NORMAL] = gtk_default_normal_bg;
style->bg[GTK_STATE_ACTIVE] = gtk_default_active_bg;
style->bg[GTK_STATE_PRELIGHT] = gtk_default_prelight_bg;
style->bg[GTK_STATE_SELECTED] = gtk_default_selected_bg;
style->bg[GTK_STATE_INSENSITIVE] = gtk_default_insensitive_bg;
for (i = 0; i < 4; i++)
{
style->text[i] = style->fg[i];
style->base[i] = style->white;
}
style->base[GTK_STATE_SELECTED] = gtk_default_selected_base;
style->text[GTK_STATE_SELECTED] = style->white;
style->base[GTK_STATE_ACTIVE] = gtk_default_active_base;
style->text[GTK_STATE_ACTIVE] = style->white;
style->base[GTK_STATE_INSENSITIVE] = gtk_default_prelight_bg;
style->text[GTK_STATE_INSENSITIVE] = gtk_default_insensitive_fg;
style->rc_style = NULL;
style->xthickness = 2;
style->ythickness = 2;
style->property_cache = NULL;
}
static void
gtk_style_class_init (GtkStyleClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gtk_style_finalize;
object_class->set_property = gtk_style_set_property;
object_class->get_property = gtk_style_get_property;
object_class->constructed = gtk_style_constructed;
klass->clone = gtk_style_real_clone;
klass->copy = gtk_style_real_copy;
klass->init_from_rc = gtk_style_real_init_from_rc;
klass->realize = gtk_style_real_realize;
klass->unrealize = gtk_style_real_unrealize;
klass->set_background = gtk_style_real_set_background;
klass->render_icon = gtk_default_render_icon;
klass->draw_hline = gtk_default_draw_hline;
klass->draw_vline = gtk_default_draw_vline;
klass->draw_shadow = gtk_default_draw_shadow;
klass->draw_arrow = gtk_default_draw_arrow;
klass->draw_diamond = gtk_default_draw_diamond;
klass->draw_box = gtk_default_draw_box;
klass->draw_flat_box = gtk_default_draw_flat_box;
klass->draw_check = gtk_default_draw_check;
klass->draw_option = gtk_default_draw_option;
klass->draw_tab = gtk_default_draw_tab;
klass->draw_shadow_gap = gtk_default_draw_shadow_gap;
klass->draw_box_gap = gtk_default_draw_box_gap;
klass->draw_extension = gtk_default_draw_extension;
klass->draw_focus = gtk_default_draw_focus;
klass->draw_slider = gtk_default_draw_slider;
klass->draw_handle = gtk_default_draw_handle;
klass->draw_expander = gtk_default_draw_expander;
klass->draw_layout = gtk_default_draw_layout;
klass->draw_resize_grip = gtk_default_draw_resize_grip;
klass->draw_spinner = gtk_default_draw_spinner;
g_type_class_add_private (object_class, sizeof (GtkStylePrivate));
g_object_class_install_property (object_class,
PROP_CONTEXT,
g_param_spec_object ("context",
P_("Style context"),
P_("GtkStyleContext to get style from"),
GTK_TYPE_STYLE_CONTEXT,
G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE));
/**
* GtkStyle::realize:
* @style: the object which received the signal
*
* Emitted when the style has been initialized for a particular
* visual. Connecting to this signal is probably seldom
* useful since most of the time applications and widgets only
* deal with styles that have been already realized.
*
* Since: 2.4
*/
realize_signal = g_signal_new (I_("realize"),
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkStyleClass, realize),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkStyle::unrealize:
* @style: the object which received the signal
*
* Emitted when the aspects of the style specific to a particular visual
* is being cleaned up. A connection to this signal can be useful
* if a widget wants to cache objects as object data on #GtkStyle.
* This signal provides a convenient place to free such cached objects.
*
* Since: 2.4
*/
unrealize_signal = g_signal_new (I_("unrealize"),
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkStyleClass, unrealize),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
}
static void
gtk_style_finalize (GObject *object)
{
GtkStyle *style = GTK_STYLE (object);
GtkStylePrivate *priv = GTK_STYLE_GET_PRIVATE (style);
g_return_if_fail (style->attach_count == 0);
/* All the styles in the list have the same
* style->styles pointer. If we delete the
* *first* style from the list, we need to update
* the style->styles pointers from all the styles.
* Otherwise we simply remove the node from
* the list.
*/
if (style->styles)
{
if (style->styles->data != style)
style->styles = g_slist_remove (style->styles, style);
else
{
GSList *tmp_list = style->styles->next;
while (tmp_list)
{
GTK_STYLE (tmp_list->data)->styles = style->styles->next;
tmp_list = tmp_list->next;
}
g_slist_free_1 (style->styles);
}
}
g_slist_foreach (style->icon_factories, (GFunc) g_object_unref, NULL);
g_slist_free (style->icon_factories);
pango_font_description_free (style->font_desc);
if (style->private_font_desc)
pango_font_description_free (style->private_font_desc);
if (style->rc_style)
g_object_unref (style->rc_style);
if (priv->context)
{
if (priv->context_changed_id)
g_signal_handler_disconnect (priv->context, priv->context_changed_id);
g_object_unref (priv->context);
}
G_OBJECT_CLASS (gtk_style_parent_class)->finalize (object);
}
static void
gtk_style_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkStylePrivate *priv;
priv = GTK_STYLE_GET_PRIVATE (object);
switch (prop_id)
{
case PROP_CONTEXT:
priv->context = g_value_dup_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_style_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkStylePrivate *priv;
priv = GTK_STYLE_GET_PRIVATE (object);
switch (prop_id)
{
case PROP_CONTEXT:
g_value_set_object (value, priv->context);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
set_color (GtkStyle *style,
GtkStyleContext *context,
GtkStateType state,
GtkRcFlags prop)
{
GtkStateFlags flags;
GdkRGBA *color = NULL;
GdkColor *dest = { 0 }; /* Shut up gcc */
switch (state)
{
case GTK_STATE_ACTIVE:
flags = GTK_STATE_FLAG_ACTIVE;
break;
case GTK_STATE_PRELIGHT:
flags = GTK_STATE_FLAG_PRELIGHT;
break;
case GTK_STATE_SELECTED:
flags = GTK_STATE_FLAG_SELECTED;
break;
case GTK_STATE_INSENSITIVE:
flags = GTK_STATE_FLAG_INSENSITIVE;
break;
default:
flags = 0;
}
switch (prop)
{
case GTK_RC_BG:
gtk_style_context_get (context, flags,
"background-color", &color,
NULL);
dest = &style->bg[state];
break;
case GTK_RC_FG:
gtk_style_context_get (context, flags,
"color", &color,
NULL);
dest = &style->fg[state];
break;
case GTK_RC_TEXT:
gtk_style_context_get (context, flags,
"color", &color,
NULL);
dest = &style->text[state];
break;
case GTK_RC_BASE:
gtk_style_context_get (context, flags,
"background-color", &color,
NULL);
dest = &style->base[state];
break;
}
if (color)
{
dest->pixel = 0;
dest->red = CLAMP ((guint) (color->red * 65535), 0, 65535);
dest->green = CLAMP ((guint) (color->green * 65535), 0, 65535);
dest->blue = CLAMP ((guint) (color->blue * 65535), 0, 65535);
gdk_rgba_free (color);
}
}
static void
gtk_style_update_from_context (GtkStyle *style)
{
GtkStylePrivate *priv;
GtkStateType state;
GtkBorder *padding;
gint i;
priv = GTK_STYLE_GET_PRIVATE (style);
for (state = GTK_STATE_NORMAL; state <= GTK_STATE_INSENSITIVE; state++)
{
if (gtk_style_context_has_class (priv->context, "entry"))
{
gtk_style_context_save (priv->context);
gtk_style_context_remove_class (priv->context, "entry");
set_color (style, priv->context, state, GTK_RC_BG);
set_color (style, priv->context, state, GTK_RC_FG);
gtk_style_context_restore (priv->context);
set_color (style, priv->context, state, GTK_RC_BASE);
set_color (style, priv->context, state, GTK_RC_TEXT);
}
else
{
gtk_style_context_save (priv->context);
gtk_style_context_add_class (priv->context, "entry");
set_color (style, priv->context, state, GTK_RC_BASE);
set_color (style, priv->context, state, GTK_RC_TEXT);
gtk_style_context_restore (priv->context);
set_color (style, priv->context, state, GTK_RC_BG);
set_color (style, priv->context, state, GTK_RC_FG);
}
}
if (style->font_desc)
pango_font_description_free (style->font_desc);
gtk_style_context_get (priv->context, 0,
"font", &style->font_desc,
"padding", &padding,
NULL);
if (padding)
{
style->xthickness = padding->left;
style->ythickness = padding->top;
gtk_border_free (padding);
}
for (i = 0; i < 5; i++)
{
_gtk_style_shade (&style->bg[i], &style->light[i], LIGHTNESS_MULT);
_gtk_style_shade (&style->bg[i], &style->dark[i], DARKNESS_MULT);
style->mid[i].red = (style->light[i].red + style->dark[i].red) / 2;
style->mid[i].green = (style->light[i].green + style->dark[i].green) / 2;
style->mid[i].blue = (style->light[i].blue + style->dark[i].blue) / 2;
style->text_aa[i].red = (style->text[i].red + style->base[i].red) / 2;
style->text_aa[i].green = (style->text[i].green + style->base[i].green) / 2;
style->text_aa[i].blue = (style->text[i].blue + style->base[i].blue) / 2;
}
style->black.red = 0x0000;
style->black.green = 0x0000;
style->black.blue = 0x0000;
style->white.red = 0xffff;
style->white.green = 0xffff;
style->white.blue = 0xffff;
for (i = 0; i < 5; i++)
style->background[i] = cairo_pattern_create_rgb (style->bg[i].red / 65535.0,
style->bg[i].green / 65535.0,
style->bg[i].blue / 65535.0);
}
static void
style_context_changed (GtkStyleContext *context,
gpointer user_data)
{
gtk_style_update_from_context (GTK_STYLE (user_data));
}
static void
gtk_style_constructed (GObject *object)
{
GtkStylePrivate *priv;
priv = GTK_STYLE_GET_PRIVATE (object);
if (priv->context)
{
gtk_style_update_from_context (GTK_STYLE (object));
priv->context_changed_id = g_signal_connect (priv->context, "changed",
G_CALLBACK (style_context_changed), object);
}
}
/**
* gtk_style_copy:
* @style: a #GtkStyle
*
* Creates a copy of the passed in #GtkStyle object.
*
* Returns: (transfer full): a copy of @style
*
* Deprecated:3.0: Use #GtkStyleContext instead
*/
GtkStyle*
gtk_style_copy (GtkStyle *style)
{
GtkStyle *new_style;
g_return_val_if_fail (GTK_IS_STYLE (style), NULL);
new_style = GTK_STYLE_GET_CLASS (style)->clone (style);
GTK_STYLE_GET_CLASS (style)->copy (new_style, style);
return new_style;
}
/**
* gtk_style_new:
* @returns: a new #GtkStyle.
*
* Creates a new #GtkStyle.
*
* Deprecated: 3.0: Use #GtkStyleContext
**/
GtkStyle*
gtk_style_new (void)
{
GtkStyle *style;
style = g_object_new (GTK_TYPE_STYLE, NULL);
return style;
}
gboolean
gtk_style_has_context (GtkStyle *style)
{
GtkStylePrivate *priv;
priv = GTK_STYLE_GET_PRIVATE (style);
return priv->context != NULL;
}
/**
* gtk_style_attach:
* @style: a #GtkStyle.
* @window: a #GdkWindow.
*
* Attaches a style to a window; this process allocates the
* colors and creates the GC's for the style - it specializes
* it to a particular visual. The process may involve the creation
* of a new style if the style has already been attached to a
* window with a different style and visual.
*
* Since this function may return a new object, you have to use it
* in the following way:
* <literal>style = gtk_style_attach (style, window)</literal>
*
* Returns: Either @style, or a newly-created #GtkStyle.
* If the style is newly created, the style parameter
* will be unref'ed, and the new style will have
* a reference count belonging to the caller.
*
* Deprecated:3.0: Use gtk_widget_style_attach() instead
*/
GtkStyle*
gtk_style_attach (GtkStyle *style,
GdkWindow *window)
{
g_return_val_if_fail (GTK_IS_STYLE (style), NULL);
g_return_val_if_fail (window != NULL, NULL);
return style;
}
/**
* gtk_style_detach:
* @style: a #GtkStyle
*
* Detaches a style from a window. If the style is not attached
* to any windows anymore, it is unrealized. See gtk_style_attach().
*
* Deprecated:3.0: Use #GtkStyleContext instead
*/
void
gtk_style_detach (GtkStyle *style)
{
g_return_if_fail (GTK_IS_STYLE (style));
}
/**
* gtk_style_lookup_icon_set:
* @style: a #GtkStyle
* @stock_id: an icon name
*
* Looks up @stock_id in the icon factories associated with @style
* and the default icon factory, returning an icon set if found,
* otherwise %NULL.
*
* Return value: icon set of @stock_id
*
* Deprecated:3.0: Use gtk_style_context_lookup_icon_set() instead
*/
GtkIconSet*
gtk_style_lookup_icon_set (GtkStyle *style,
const char *stock_id)
{
GtkStylePrivate *priv;
g_return_val_if_fail (GTK_IS_STYLE (style), NULL);
g_return_val_if_fail (stock_id != NULL, NULL);
priv = GTK_STYLE_GET_PRIVATE (style);
if (priv->context)
return gtk_style_context_lookup_icon_set (priv->context, stock_id);
return gtk_icon_factory_lookup_default (stock_id);
}
/**
* gtk_style_lookup_color:
* @style: a #GtkStyle
* @color_name: the name of the logical color to look up
* @color: the #GdkColor to fill in
*
* Looks up @color_name in the style's logical color mappings,
* filling in @color and returning %TRUE if found, otherwise
* returning %FALSE. Do not cache the found mapping, because
* it depends on the #GtkStyle and might change when a theme
* switch occurs.
*
* Return value: %TRUE if the mapping was found.
*
* Since: 2.10
*
* Deprecated:3.0: Use gtk_style_context_lookup_color() instead
**/
gboolean
gtk_style_lookup_color (GtkStyle *style,
const char *color_name,
GdkColor *color)
{
GtkStylePrivate *priv;
gboolean result;
GdkRGBA rgba;
g_return_val_if_fail (GTK_IS_STYLE (style), FALSE);
g_return_val_if_fail (color_name != NULL, FALSE);
g_return_val_if_fail (color != NULL, FALSE);
priv = GTK_STYLE_GET_PRIVATE (style);
if (!priv->context)
return FALSE;
result = gtk_style_context_lookup_color (priv->context, color_name, &rgba);
if (color)
{
color->red = (guint16) (rgba.red * 65535);
color->green = (guint16) (rgba.green * 65535);
color->blue = (guint16) (rgba.blue * 65535);
color->pixel = 0;
}
return result;
}
/**
* gtk_style_set_background:
* @style: a #GtkStyle
* @window: a #GdkWindow
* @state_type: a state
*
* Sets the background of @window to the background color or pixmap
* specified by @style for the given state.
*
* Deprecated:3.0: Use gtk_style_context_set_background() instead
*/
void
gtk_style_set_background (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (window != NULL);
GTK_STYLE_GET_CLASS (style)->set_background (style, window, state_type);
}
/* Default functions */
static GtkStyle *
gtk_style_real_clone (GtkStyle *style)
{
GtkStylePrivate *priv;
priv = GTK_STYLE_GET_PRIVATE (style);
return g_object_new (G_OBJECT_TYPE (style),
"context", priv->context,
NULL);
}
static void
gtk_style_real_copy (GtkStyle *style,
GtkStyle *src)
{
gint i;
for (i = 0; i < 5; i++)
{
style->fg[i] = src->fg[i];
style->bg[i] = src->bg[i];
style->text[i] = src->text[i];
style->base[i] = src->base[i];
if (style->background[i])
cairo_pattern_destroy (style->background[i]),
style->background[i] = src->background[i];
if (style->background[i])
cairo_pattern_reference (style->background[i]);
}
if (style->font_desc)
pango_font_description_free (style->font_desc);
if (src->font_desc)
style->font_desc = pango_font_description_copy (src->font_desc);
else
style->font_desc = NULL;
style->xthickness = src->xthickness;
style->ythickness = src->ythickness;
if (style->rc_style)
g_object_unref (style->rc_style);
style->rc_style = src->rc_style;
if (src->rc_style)
g_object_ref (src->rc_style);
g_slist_foreach (style->icon_factories, (GFunc) g_object_unref, NULL);
g_slist_free (style->icon_factories);
style->icon_factories = g_slist_copy (src->icon_factories);
g_slist_foreach (style->icon_factories, (GFunc) g_object_ref, NULL);
}
static void
gtk_style_real_init_from_rc (GtkStyle *style,
GtkRcStyle *rc_style)
{
}
/**
* gtk_style_get_style_property:
* @style: a #GtkStyle
* @widget_type: the #GType of a descendant of #GtkWidget
* @property_name: the name of the style property to get
* @value: a #GValue where the value of the property being
* queried will be stored
*
* Queries the value of a style property corresponding to a
* widget class is in the given style.
*
* Since: 2.16
*/
void
gtk_style_get_style_property (GtkStyle *style,
GType widget_type,
const gchar *property_name,
GValue *value)
{
GtkStylePrivate *priv;
GtkWidgetClass *klass;
GParamSpec *pspec;
const GValue *peek_value;
klass = g_type_class_ref (widget_type);
pspec = gtk_widget_class_find_style_property (klass, property_name);
g_type_class_unref (klass);
if (!pspec)
{
g_warning ("%s: widget class `%s' has no property named `%s'",
G_STRLOC,
g_type_name (widget_type),
property_name);
return;
}
priv = GTK_STYLE_GET_PRIVATE (style);
peek_value = _gtk_style_context_peek_style_property (priv->context,
widget_type,
0, pspec);
if (G_VALUE_TYPE (value) == G_PARAM_SPEC_VALUE_TYPE (pspec))
g_value_copy (peek_value, value);
else if (g_value_type_transformable (G_PARAM_SPEC_VALUE_TYPE (pspec), G_VALUE_TYPE (value)))
g_value_transform (peek_value, value);
else
g_warning ("can't retrieve style property `%s' of type `%s' as value of type `%s'",
pspec->name,
g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
G_VALUE_TYPE_NAME (value));
}
/**
* gtk_style_get_valist:
* @style: a #GtkStyle
* @widget_type: the #GType of a descendant of #GtkWidget
* @first_property_name: the name of the first style property to get
* @var_args: a <type>va_list</type> of pairs of property names and
* locations to return the property values, starting with the
* location for @first_property_name.
*
* Non-vararg variant of gtk_style_get().
* Used primarily by language bindings.
*
* Since: 2.16
*/
void
gtk_style_get_valist (GtkStyle *style,
GType widget_type,
const gchar *first_property_name,
va_list var_args)
{
GtkStylePrivate *priv;
const char *property_name;
GtkWidgetClass *klass;
g_return_if_fail (GTK_IS_STYLE (style));
klass = g_type_class_ref (widget_type);
priv = GTK_STYLE_GET_PRIVATE (style);
property_name = first_property_name;
while (property_name)
{
GParamSpec *pspec;
const GValue *peek_value;
gchar *error;
pspec = gtk_widget_class_find_style_property (klass, property_name);
if (!pspec)
{
g_warning ("%s: widget class `%s' has no property named `%s'",
G_STRLOC,
g_type_name (widget_type),
property_name);
break;
}
peek_value = _gtk_style_context_peek_style_property (priv->context, widget_type,
0, pspec);
G_VALUE_LCOPY (peek_value, var_args, 0, &error);
if (error)
{
g_warning ("%s: %s", G_STRLOC, error);
g_free (error);
break;
}
property_name = va_arg (var_args, gchar*);
}
g_type_class_unref (klass);
}
/**
* gtk_style_get:
* @style: a #GtkStyle
* @widget_type: the #GType of a descendant of #GtkWidget
* @first_property_name: the name of the first style property to get
* @Varargs: pairs of property names and locations to
* return the property values, starting with the location for
* @first_property_name, terminated by %NULL.
*
* Gets the values of a multiple style properties for @widget_type
* from @style.
*
* Since: 2.16
*/
void
gtk_style_get (GtkStyle *style,
GType widget_type,
const gchar *first_property_name,
...)
{
va_list var_args;
va_start (var_args, first_property_name);
gtk_style_get_valist (style, widget_type, first_property_name, var_args);
va_end (var_args);
}
static void
gtk_style_real_realize (GtkStyle *style)
{
}
static void
gtk_style_real_unrealize (GtkStyle *style)
{
}
static void
gtk_style_real_set_background (GtkStyle *style,
GdkWindow *window,
GtkStateType state_type)
{
gdk_window_set_background_pattern (window, style->background[state_type]);
}
/**
* gtk_style_render_icon:
* @style: a #GtkStyle
* @source: the #GtkIconSource specifying the icon to render
* @direction: a text direction
* @state: a state
* @size: (type int): the size to render the icon at. A size of
* (GtkIconSize)-1 means render at the size of the source and
* don't scale.
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
*
* Renders the icon specified by @source at the given @size
* according to the given parameters and returns the result in a
* pixbuf.
*
* Return value: (transfer full): a newly-created #GdkPixbuf
* containing the rendered icon
*
* Deprecated:3.0: Use gtk_render_icon_pixbuf() instead
*/
GdkPixbuf *
gtk_style_render_icon (GtkStyle *style,
const GtkIconSource *source,
GtkTextDirection direction,
GtkStateType state,
GtkIconSize size,
GtkWidget *widget,
const gchar *detail)
{
GdkPixbuf *pixbuf;
g_return_val_if_fail (GTK_IS_STYLE (style), NULL);
g_return_val_if_fail (GTK_STYLE_GET_CLASS (style)->render_icon != NULL, NULL);
pixbuf = GTK_STYLE_GET_CLASS (style)->render_icon (style, source, direction, state,
size, widget, detail);
g_return_val_if_fail (pixbuf != NULL, NULL);
return pixbuf;
}
/* Default functions */
/**
* gtk_style_apply_default_background:
* @style:
* @cr:
* @window:
* @set_bg:
* @state_type:
* @x:
* @y:
* @width:
* @height:
*
* Deprecated:3.0: Use #GtkStyleContext instead
*/
void
gtk_style_apply_default_background (GtkStyle *style,
cairo_t *cr,
GdkWindow *window,
GtkStateType state_type,
gint x,
gint y,
gint width,
gint height)
{
cairo_save (cr);
if (style->background[state_type] == NULL)
{
GdkWindow *parent = gdk_window_get_parent (window);
int x_offset, y_offset;
if (parent)
{
gdk_window_get_position (window, &x_offset, &y_offset);
cairo_translate (cr, -x_offset, -y_offset);
gtk_style_apply_default_background (style, cr,
parent, state_type,
x + x_offset, y + y_offset,
width, height);
goto out;
}
else
gdk_cairo_set_source_color (cr, &style->bg[state_type]);
}
else
cairo_set_source (cr, style->background[state_type]);
cairo_rectangle (cr, x, y, width, height);
cairo_fill (cr);
out:
cairo_restore (cr);
}
static GdkPixbuf *
gtk_default_render_icon (GtkStyle *style,
const GtkIconSource *source,
GtkTextDirection direction,
GtkStateType state,
GtkIconSize size,
GtkWidget *widget,
const gchar *detail)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
GtkStateFlags flags = 0;
GdkPixbuf *pixbuf;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
if (!context)
return NULL;
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
switch (state)
{
case GTK_STATE_PRELIGHT:
flags |= GTK_STATE_FLAG_PRELIGHT;
break;
case GTK_STATE_INSENSITIVE:
flags |= GTK_STATE_FLAG_INSENSITIVE;
break;
default:
break;
}
gtk_style_context_set_state (context, flags);
pixbuf = gtk_render_icon_pixbuf (context, source, size);
gtk_style_context_restore (context);
return pixbuf;
}
static void
_cairo_draw_line (cairo_t *cr,
GdkColor *color,
gint x1,
gint y1,
gint x2,
gint y2)
{
cairo_save (cr);
gdk_cairo_set_source_color (cr, color);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
cairo_move_to (cr, x1 + 0.5, y1 + 0.5);
cairo_line_to (cr, x2 + 0.5, y2 + 0.5);
cairo_stroke (cr);
cairo_restore (cr);
}
static void
transform_detail_string (const gchar *detail,
GtkStyleContext *context)
{
if (!detail)
return;
if (strcmp (detail, "arrow") == 0)
gtk_style_context_add_class (context, "arrow");
else if (strcmp (detail, "button") == 0)
gtk_style_context_add_class (context, "button");
else if (strcmp (detail, "buttondefault") == 0)
{
gtk_style_context_add_class (context, "button");
gtk_style_context_add_class (context, "default");
}
else if (strcmp (detail, "calendar") == 0)
gtk_style_context_add_class (context, "calendar");
else if (strcmp (detail, "cellcheck") == 0)
{
gtk_style_context_add_class (context, "cell");
gtk_style_context_add_class (context, "check");
}
else if (strcmp (detail, "cellradio") == 0)
{
gtk_style_context_add_class (context, "cell");
gtk_style_context_add_class (context, "radio");
}
else if (strcmp (detail, "checkbutton") == 0)
gtk_style_context_add_class (context, "check");
else if (strcmp (detail, "check") == 0)
{
gtk_style_context_add_class (context, "check");
gtk_style_context_add_class (context, "menu");
}
else if (strcmp (detail, "radiobutton") == 0)
{
gtk_style_context_add_class (context, "radio");
}
else if (strcmp (detail, "option") == 0)
{
gtk_style_context_add_class (context, "radio");
gtk_style_context_add_class (context, "menu");
}
else if (strcmp (detail, "entry") == 0 ||
strcmp (detail, "entry_bg") == 0)
gtk_style_context_add_class (context, "entry");
else if (strcmp (detail, "expander") == 0)
gtk_style_context_add_class (context, "expander");
else if (strcmp (detail, "tooltip") == 0)
gtk_style_context_add_class (context, "tooltip");
else if (strcmp (detail, "frame") == 0)
gtk_style_context_add_class (context, "frame");
else if (strcmp (detail, "scrolled_window") == 0)
gtk_style_context_add_class (context, "scrolled-window");
else if (strcmp (detail, "viewport") == 0 ||
strcmp (detail, "viewportbin") == 0)
gtk_style_context_add_class (context, "viewport");
else if (strncmp (detail, "trough", 6) == 0)
gtk_style_context_add_class (context, "trough");
else if (strcmp (detail, "spinbutton") == 0)
gtk_style_context_add_class (context, "spinbutton");
else if (strcmp (detail, "spinbutton_up") == 0)
{
gtk_style_context_add_class (context, "spinbutton");
gtk_style_context_add_class (context, "button");
gtk_style_context_set_junction_sides (context, GTK_JUNCTION_BOTTOM);
}
else if (strcmp (detail, "spinbutton_down") == 0)
{
gtk_style_context_add_class (context, "spinbutton");
gtk_style_context_add_class (context, "button");
gtk_style_context_set_junction_sides (context, GTK_JUNCTION_TOP);
}
else if ((detail[0] == 'h' || detail[0] == 'v') &&
strncmp (&detail[1], "scrollbar_", 10) == 0)
{
gtk_style_context_add_class (context, "button");
gtk_style_context_add_class (context, "scrollbar");
}
else if (strcmp (detail, "slider") == 0)
{
gtk_style_context_add_class (context, "slider");
gtk_style_context_add_class (context, "scrollbar");
}
else if (strcmp (detail, "vscale") == 0 ||
strcmp (detail, "hscale") == 0)
{
gtk_style_context_add_class (context, "slider");
gtk_style_context_add_class (context, "scale");
}
else if (strcmp (detail, "menuitem") == 0)
{
gtk_style_context_add_class (context, "menuitem");
gtk_style_context_add_class (context, "menu");
}
else if (strcmp (detail, "menu") == 0)
{
gtk_style_context_add_class (context, "popup");
gtk_style_context_add_class (context, "menu");
}
else if (strcmp (detail, "accellabel") == 0)
gtk_style_context_add_class (context, "accelerator");
else if (strcmp (detail, "menubar") == 0)
gtk_style_context_add_class (context, "menubar");
else if (strcmp (detail, "base") == 0)
gtk_style_context_add_class (context, "background");
else if (strcmp (detail, "bar") == 0 ||
strcmp (detail, "progressbar") == 0)
gtk_style_context_add_class (context, "progressbar");
else if (strcmp (detail, "toolbar") == 0)
gtk_style_context_add_class (context, "toolbar");
else if (strcmp (detail, "handlebox_bin") == 0)
gtk_style_context_add_class (context, "dock");
else if (strcmp (detail, "notebook") == 0)
gtk_style_context_add_class (context, "notebook");
else if (strcmp (detail, "tab") == 0)
{
gtk_style_context_add_class (context, "notebook");
gtk_style_context_add_region (context, GTK_STYLE_REGION_TAB, 0);
}
else if (g_str_has_prefix (detail, "cell"))
{
GtkRegionFlags row, col;
gboolean ruled = FALSE;
GStrv tokens;
guint i;
tokens = g_strsplit (detail, "_", -1);
row = col = 0;
i = 0;
while (tokens[i])
{
if (strcmp (tokens[i], "even") == 0)
row |= GTK_REGION_EVEN;
else if (strcmp (tokens[i], "odd") == 0)
row |= GTK_REGION_ODD;
else if (strcmp (tokens[i], "start") == 0)
col |= GTK_REGION_FIRST;
else if (strcmp (tokens[i], "end") == 0)
col |= GTK_REGION_LAST;
else if (strcmp (tokens[i], "ruled") == 0)
ruled = TRUE;
else if (strcmp (tokens[i], "sorted") == 0)
col |= GTK_REGION_SORTED;
i++;
}
if (!ruled)
row &= ~(GTK_REGION_EVEN | GTK_REGION_ODD);
gtk_style_context_add_class (context, "cell");
gtk_style_context_add_region (context, "row", row);
gtk_style_context_add_region (context, "column", col);
g_strfreev (tokens);
}
}
static void
gtk_default_draw_hline (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint x1,
gint x2,
gint y)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
cairo_save (cr);
gtk_render_line (context, cr,
x1, y, x2, y);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_vline (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint y1,
gint y2,
gint x)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
cairo_save (cr);
gtk_render_line (context, cr,
x, y1, x, y2);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_shadow (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
cairo_save (cr);
gtk_render_frame (context, cr,
(gdouble) x,
(gdouble) y,
(gdouble) width,
(gdouble) height);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
draw_arrow (cairo_t *cr,
GdkColor *color,
GtkArrowType arrow_type,
gint x,
gint y,
gint width,
gint height)
{
gdk_cairo_set_source_color (cr, color);
cairo_save (cr);
if (arrow_type == GTK_ARROW_DOWN)
{
cairo_move_to (cr, x, y);
cairo_line_to (cr, x + width, y);
cairo_line_to (cr, x + width / 2., y + height);
}
else if (arrow_type == GTK_ARROW_UP)
{
cairo_move_to (cr, x, y + height);
cairo_line_to (cr, x + width / 2., y);
cairo_line_to (cr, x + width, y + height);
}
else if (arrow_type == GTK_ARROW_LEFT)
{
cairo_move_to (cr, x + width, y);
cairo_line_to (cr, x + width, y + height);
cairo_line_to (cr, x, y + height / 2.);
}
else if (arrow_type == GTK_ARROW_RIGHT)
{
cairo_move_to (cr, x, y);
cairo_line_to (cr, x + width, y + height / 2.);
cairo_line_to (cr, x, y + height);
}
cairo_close_path (cr);
cairo_fill (cr);
cairo_restore (cr);
}
static void
gtk_default_draw_arrow (GtkStyle *style,
cairo_t *cr,
GtkStateType state,
GtkShadowType shadow,
GtkWidget *widget,
const gchar *detail,
GtkArrowType arrow_type,
gboolean fill,
gint x,
gint y,
gint width,
gint height)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
GtkStateFlags flags = 0;
gdouble angle, size;
if (arrow_type == GTK_ARROW_NONE)
return;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
switch (arrow_type)
{
case GTK_ARROW_UP:
angle = 0;
size = width;
break;
case GTK_ARROW_RIGHT:
angle = G_PI / 2;
size = height;
break;
case GTK_ARROW_DOWN:
angle = G_PI;
size = width;
break;
case GTK_ARROW_LEFT:
angle = 3 * (G_PI / 2);
size = height;
break;
default:
g_assert_not_reached ();
}
switch (state)
{
case GTK_STATE_PRELIGHT:
flags |= GTK_STATE_FLAG_PRELIGHT;
break;
case GTK_STATE_SELECTED:
flags |= GTK_STATE_FLAG_SELECTED;
break;
case GTK_STATE_INSENSITIVE:
flags |= GTK_STATE_FLAG_INSENSITIVE;
break;
case GTK_STATE_ACTIVE:
flags |= GTK_STATE_FLAG_ACTIVE;
break;
default:
break;
}
gtk_style_context_set_state (context, flags);
cairo_save (cr);
gtk_render_arrow (context,
cr, angle,
(gdouble) x,
(gdouble) y,
size);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_diamond (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
gint half_width;
gint half_height;
GdkColor *outer_nw = NULL;
GdkColor *outer_ne = NULL;
GdkColor *outer_sw = NULL;
GdkColor *outer_se = NULL;
GdkColor *middle_nw = NULL;
GdkColor *middle_ne = NULL;
GdkColor *middle_sw = NULL;
GdkColor *middle_se = NULL;
GdkColor *inner_nw = NULL;
GdkColor *inner_ne = NULL;
GdkColor *inner_sw = NULL;
GdkColor *inner_se = NULL;
half_width = width / 2;
half_height = height / 2;
switch (shadow_type)
{
case GTK_SHADOW_IN:
inner_sw = inner_se = &style->bg[state_type];
middle_sw = middle_se = &style->light[state_type];
outer_sw = outer_se = &style->light[state_type];
inner_nw = inner_ne = &style->black;
middle_nw = middle_ne = &style->dark[state_type];
outer_nw = outer_ne = &style->dark[state_type];
break;
case GTK_SHADOW_OUT:
inner_sw = inner_se = &style->dark[state_type];
middle_sw = middle_se = &style->dark[state_type];
outer_sw = outer_se = &style->black;
inner_nw = inner_ne = &style->bg[state_type];
middle_nw = middle_ne = &style->light[state_type];
outer_nw = outer_ne = &style->light[state_type];
break;
case GTK_SHADOW_ETCHED_IN:
inner_sw = inner_se = &style->bg[state_type];
middle_sw = middle_se = &style->dark[state_type];
outer_sw = outer_se = &style->light[state_type];
inner_nw = inner_ne = &style->bg[state_type];
middle_nw = middle_ne = &style->light[state_type];
outer_nw = outer_ne = &style->dark[state_type];
break;
case GTK_SHADOW_ETCHED_OUT:
inner_sw = inner_se = &style->bg[state_type];
middle_sw = middle_se = &style->light[state_type];
outer_sw = outer_se = &style->dark[state_type];
inner_nw = inner_ne = &style->bg[state_type];
middle_nw = middle_ne = &style->dark[state_type];
outer_nw = outer_ne = &style->light[state_type];
break;
default:
break;
}
if (inner_sw)
{
_cairo_draw_line (cr, inner_sw,
x + 2, y + half_height,
x + half_width, y + height - 2);
_cairo_draw_line (cr, inner_se,
x + half_width, y + height - 2,
x + width - 2, y + half_height);
_cairo_draw_line (cr, middle_sw,
x + 1, y + half_height,
x + half_width, y + height - 1);
_cairo_draw_line (cr, middle_se,
x + half_width, y + height - 1,
x + width - 1, y + half_height);
_cairo_draw_line (cr, outer_sw,
x, y + half_height,
x + half_width, y + height);
_cairo_draw_line (cr, outer_se,
x + half_width, y + height,
x + width, y + half_height);
_cairo_draw_line (cr, inner_nw,
x + 2, y + half_height,
x + half_width, y + 2);
_cairo_draw_line (cr, inner_ne,
x + half_width, y + 2,
x + width - 2, y + half_height);
_cairo_draw_line (cr, middle_nw,
x + 1, y + half_height,
x + half_width, y + 1);
_cairo_draw_line (cr, middle_ne,
x + half_width, y + 1,
x + width - 1, y + half_height);
_cairo_draw_line (cr, outer_nw,
x, y + half_height,
x + half_width, y);
_cairo_draw_line (cr, outer_ne,
x + half_width, y,
x + width, y + half_height);
}
}
static void
option_menu_get_props (GtkWidget *widget,
GtkRequisition *indicator_size,
GtkBorder *indicator_spacing)
{
GtkRequisition *tmp_size = NULL;
GtkBorder *tmp_spacing = NULL;
if (tmp_size)
{
*indicator_size = *tmp_size;
gtk_requisition_free (tmp_size);
}
else
*indicator_size = default_option_indicator_size;
if (tmp_spacing)
{
*indicator_spacing = *tmp_spacing;
gtk_border_free (tmp_spacing);
}
else
*indicator_spacing = default_option_indicator_spacing;
}
static void
gtk_default_draw_box (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
GtkStateFlags flags = 0;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
switch (state_type)
{
case GTK_STATE_ACTIVE:
flags |= GTK_STATE_FLAG_ACTIVE;
break;
case GTK_STATE_PRELIGHT:
flags |= GTK_STATE_FLAG_PRELIGHT;
break;
case GTK_STATE_SELECTED:
flags |= GTK_STATE_FLAG_SELECTED;
break;
case GTK_STATE_INSENSITIVE:
flags |= GTK_STATE_FLAG_INSENSITIVE;
break;
default:
break;
}
if (shadow_type == GTK_SHADOW_IN)
flags |= GTK_STATE_FLAG_ACTIVE;
gtk_style_context_set_state (context, flags);
cairo_save (cr);
if (gtk_style_context_has_class (context, GTK_STYLE_CLASS_PROGRESSBAR))
gtk_render_activity (context, cr, x, y, width, height);
else
{
gtk_render_background (context, cr, x, y, width, height);
gtk_render_frame (context, cr, x, y, width, height);
}
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_flat_box (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
GtkStateFlags flags = 0;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
switch (state_type)
{
case GTK_STATE_PRELIGHT:
flags |= GTK_STATE_FLAG_PRELIGHT;
break;
case GTK_STATE_SELECTED:
flags |= GTK_STATE_FLAG_SELECTED;
break;
case GTK_STATE_INSENSITIVE:
flags |= GTK_STATE_FLAG_INSENSITIVE;
break;
case GTK_STATE_ACTIVE:
flags |= GTK_STATE_FLAG_ACTIVE;
break;
case GTK_STATE_FOCUSED:
flags |= GTK_STATE_FLAG_FOCUSED;
break;
default:
break;
}
gtk_style_context_set_state (context, flags);
cairo_save (cr);
gtk_render_background (context, cr,
(gdouble) x,
(gdouble) y,
(gdouble) width,
(gdouble) height);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_check (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
GtkStateFlags flags = 0;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
switch (state_type)
{
case GTK_STATE_PRELIGHT:
flags |= GTK_STATE_FLAG_PRELIGHT;
break;
case GTK_STATE_SELECTED:
flags |= GTK_STATE_FLAG_SELECTED;
break;
case GTK_STATE_INSENSITIVE:
flags |= GTK_STATE_FLAG_INSENSITIVE;
break;
default:
break;
}
if (shadow_type == GTK_SHADOW_IN)
flags |= GTK_STATE_FLAG_ACTIVE;
else if (shadow_type == GTK_SHADOW_ETCHED_IN)
flags |= GTK_STATE_FLAG_INCONSISTENT;
gtk_style_context_set_state (context, flags);
cairo_save (cr);
gtk_render_check (context,
cr, x, y,
width, height);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_option (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
GtkStateFlags flags = 0;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
switch (state_type)
{
case GTK_STATE_PRELIGHT:
flags |= GTK_STATE_FLAG_PRELIGHT;
break;
case GTK_STATE_SELECTED:
flags |= GTK_STATE_FLAG_SELECTED;
break;
case GTK_STATE_INSENSITIVE:
flags |= GTK_STATE_FLAG_INSENSITIVE;
break;
default:
break;
}
if (shadow_type == GTK_SHADOW_IN)
flags |= GTK_STATE_FLAG_ACTIVE;
else if (shadow_type == GTK_SHADOW_ETCHED_IN)
flags |= GTK_STATE_FLAG_INCONSISTENT;
gtk_style_context_set_state (context, flags);
cairo_save (cr);
gtk_render_option (context, cr,
(gdouble) x,
(gdouble) y,
(gdouble) width,
(gdouble) height);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_tab (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
#define ARROW_SPACE 4
GtkRequisition indicator_size;
GtkBorder indicator_spacing;
gint arrow_height;
option_menu_get_props (widget, &indicator_size, &indicator_spacing);
indicator_size.width += (indicator_size.width % 2) - 1;
arrow_height = indicator_size.width / 2 + 1;
x += (width - indicator_size.width) / 2;
y += (height - (2 * arrow_height + ARROW_SPACE)) / 2;
if (state_type == GTK_STATE_INSENSITIVE)
{
draw_arrow (cr, &style->white,
GTK_ARROW_UP, x + 1, y + 1,
indicator_size.width, arrow_height);
draw_arrow (cr, &style->white,
GTK_ARROW_DOWN, x + 1, y + arrow_height + ARROW_SPACE + 1,
indicator_size.width, arrow_height);
}
draw_arrow (cr, &style->fg[state_type],
GTK_ARROW_UP, x, y,
indicator_size.width, arrow_height);
draw_arrow (cr, &style->fg[state_type],
GTK_ARROW_DOWN, x, y + arrow_height + ARROW_SPACE,
indicator_size.width, arrow_height);
}
static void
gtk_default_draw_shadow_gap (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkPositionType gap_side,
gint gap_x,
gint gap_width)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
GtkStateFlags flags = 0;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
switch (state_type)
{
case GTK_STATE_ACTIVE:
flags |= GTK_STATE_FLAG_ACTIVE;
break;
case GTK_STATE_PRELIGHT:
flags |= GTK_STATE_FLAG_PRELIGHT;
break;
case GTK_STATE_SELECTED:
flags |= GTK_STATE_FLAG_SELECTED;
break;
case GTK_STATE_INSENSITIVE:
flags |= GTK_STATE_FLAG_INSENSITIVE;
break;
default:
break;
}
gtk_style_context_set_state (context, flags);
cairo_save (cr);
gtk_render_frame_gap (context, cr,
(gdouble) x,
(gdouble) y,
(gdouble) width,
(gdouble) height,
gap_side,
(gdouble) gap_x,
(gdouble) gap_x + gap_width);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_box_gap (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkPositionType gap_side,
gint gap_x,
gint gap_width)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
GtkStateFlags flags = 0;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
switch (state_type)
{
case GTK_STATE_ACTIVE:
flags |= GTK_STATE_FLAG_ACTIVE;
break;
case GTK_STATE_PRELIGHT:
flags |= GTK_STATE_FLAG_PRELIGHT;
break;
case GTK_STATE_SELECTED:
flags |= GTK_STATE_FLAG_SELECTED;
break;
case GTK_STATE_INSENSITIVE:
flags |= GTK_STATE_FLAG_INSENSITIVE;
break;
default:
break;
}
gtk_style_context_set_state (context, flags);
cairo_save (cr);
gtk_render_background (context, cr,
(gdouble) x,
(gdouble) y,
(gdouble) width,
(gdouble) height);
gtk_render_frame_gap (context, cr,
(gdouble) x,
(gdouble) y,
(gdouble) width,
(gdouble) height,
gap_side,
(gdouble) gap_x,
(gdouble) gap_x + gap_width);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_extension (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkPositionType gap_side)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
GtkStateFlags flags = 0;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
switch (state_type)
{
case GTK_STATE_ACTIVE:
flags |= GTK_STATE_FLAG_ACTIVE;
break;
case GTK_STATE_PRELIGHT:
flags |= GTK_STATE_FLAG_PRELIGHT;
break;
case GTK_STATE_SELECTED:
flags |= GTK_STATE_FLAG_SELECTED;
break;
case GTK_STATE_INSENSITIVE:
flags |= GTK_STATE_FLAG_INSENSITIVE;
break;
default:
break;
}
gtk_style_context_set_state (context, flags);
cairo_save (cr);
gtk_render_extension (context, cr,
(gdouble) x,
(gdouble) y,
(gdouble) width,
(gdouble) height,
gap_side);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_focus (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
cairo_save (cr);
gtk_render_focus (context, cr,
(gdouble) x,
(gdouble) y,
(gdouble) width,
(gdouble) height);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_slider (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkOrientation orientation)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
GtkStateFlags flags = 0;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
switch (state_type)
{
case GTK_STATE_PRELIGHT:
flags |= GTK_STATE_FLAG_PRELIGHT;
break;
case GTK_STATE_SELECTED:
flags |= GTK_STATE_FLAG_SELECTED;
break;
case GTK_STATE_INSENSITIVE:
flags |= GTK_STATE_FLAG_INSENSITIVE;
break;
default:
break;
}
gtk_style_context_set_state (context, flags);
cairo_save (cr);
gtk_render_slider (context, cr, x, y, width, height, orientation);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_handle (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkOrientation orientation)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
GtkStateFlags flags = 0;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
switch (state_type)
{
case GTK_STATE_PRELIGHT:
flags |= GTK_STATE_FLAG_PRELIGHT;
break;
case GTK_STATE_SELECTED:
flags |= GTK_STATE_FLAG_SELECTED;
break;
case GTK_STATE_INSENSITIVE:
flags |= GTK_STATE_FLAG_INSENSITIVE;
break;
default:
break;
}
gtk_style_context_set_state (context, flags);
cairo_save (cr);
gtk_render_handle (context, cr,
(gdouble) x,
(gdouble) y,
(gdouble) width,
(gdouble) height);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_expander (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
GtkExpanderStyle expander_style)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
GtkStateFlags flags = 0;
gint size;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
gtk_style_context_add_class (context, "expander");
switch (state_type)
{
case GTK_STATE_PRELIGHT:
flags |= GTK_STATE_FLAG_PRELIGHT;
break;
case GTK_STATE_SELECTED:
flags |= GTK_STATE_FLAG_SELECTED;
break;
case GTK_STATE_INSENSITIVE:
flags |= GTK_STATE_FLAG_INSENSITIVE;
break;
default:
break;
}
if (widget &&
gtk_widget_class_find_style_property (GTK_WIDGET_GET_CLASS (widget),
"expander-size"))
gtk_widget_style_get (widget, "expander-size", &size, NULL);
else
size = 12;
if (expander_style == GTK_EXPANDER_EXPANDED)
flags |= GTK_STATE_FLAG_ACTIVE;
gtk_style_context_set_state (context, flags);
cairo_save (cr);
gtk_render_expander (context, cr,
(gdouble) x - (size / 2),
(gdouble) y - (size / 2),
(gdouble) size,
(gdouble) size);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_layout (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
gboolean use_text,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
PangoLayout *layout)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
GtkStateFlags flags = 0;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
switch (state_type)
{
case GTK_STATE_PRELIGHT:
flags |= GTK_STATE_FLAG_PRELIGHT;
break;
case GTK_STATE_SELECTED:
flags |= GTK_STATE_FLAG_SELECTED;
break;
case GTK_STATE_INSENSITIVE:
flags |= GTK_STATE_FLAG_INSENSITIVE;
break;
default:
break;
}
gtk_style_context_set_state (context, flags);
cairo_save (cr);
gtk_render_layout (context, cr,
(gdouble) x,
(gdouble) y,
layout);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_resize_grip (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
GdkWindowEdge edge,
gint x,
gint y,
gint width,
gint height)
{
GtkStyleContext *context;
GtkStylePrivate *priv;
GtkStateFlags flags = 0;
GtkJunctionSides sides = 0;
if (widget)
context = gtk_widget_get_style_context (widget);
else
{
priv = GTK_STYLE_GET_PRIVATE (style);
context = priv->context;
}
gtk_style_context_save (context);
if (detail)
transform_detail_string (detail, context);
gtk_style_context_add_class (context, "grip");
switch (state_type)
{
case GTK_STATE_PRELIGHT:
flags |= GTK_STATE_FLAG_PRELIGHT;
break;
case GTK_STATE_SELECTED:
flags |= GTK_STATE_FLAG_SELECTED;
break;
case GTK_STATE_INSENSITIVE:
flags |= GTK_STATE_FLAG_INSENSITIVE;
break;
default:
break;
}
gtk_style_context_set_state (context, flags);
switch (edge)
{
case GDK_WINDOW_EDGE_NORTH_WEST:
sides = GTK_JUNCTION_CORNER_TOPLEFT;
break;
case GDK_WINDOW_EDGE_NORTH:
sides = GTK_JUNCTION_TOP;
break;
case GDK_WINDOW_EDGE_NORTH_EAST:
sides = GTK_JUNCTION_CORNER_TOPRIGHT;
break;
case GDK_WINDOW_EDGE_WEST:
sides = GTK_JUNCTION_LEFT;
break;
case GDK_WINDOW_EDGE_EAST:
sides = GTK_JUNCTION_RIGHT;
break;
case GDK_WINDOW_EDGE_SOUTH_WEST:
sides = GTK_JUNCTION_CORNER_BOTTOMLEFT;
break;
case GDK_WINDOW_EDGE_SOUTH:
sides = GTK_JUNCTION_BOTTOM;
break;
case GDK_WINDOW_EDGE_SOUTH_EAST:
sides = GTK_JUNCTION_CORNER_BOTTOMRIGHT;
break;
}
gtk_style_context_set_junction_sides (context, sides);
cairo_save (cr);
gtk_render_handle (context, cr,
(gdouble) x,
(gdouble) y,
(gdouble) width,
(gdouble) height);
cairo_restore (cr);
gtk_style_context_restore (context);
}
static void
gtk_default_draw_spinner (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
guint step,
gint x,
gint y,
gint width,
gint height)
{
GdkColor *color;
guint num_steps;
gdouble dx, dy;
gdouble radius;
gdouble half;
gint i;
guint real_step;
gtk_style_get (style, GTK_TYPE_SPINNER,
"num-steps", &num_steps,
NULL);
real_step = step % num_steps;
/* set a clip region for the expose event */
cairo_rectangle (cr, x, y, width, height);
cairo_clip (cr);
cairo_translate (cr, x, y);
/* draw clip region */
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
color = &style->fg[state_type];
dx = width / 2;
dy = height / 2;
radius = MIN (width / 2, height / 2);
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 = (gdouble) ((i + num_steps - real_step)
% num_steps) / num_steps;
cairo_save (cr);
cairo_set_source_rgba (cr,
color->red / 65535.,
color->green / 65535.,
color->blue / 65535.,
t);
cairo_set_line_width (cr, 2.0);
cairo_move_to (cr,
dx + (radius - inset) * cos (i * G_PI / half),
dy + (radius - inset) * sin (i * G_PI / half));
cairo_line_to (cr,
dx + radius * cos (i * G_PI / half),
dy + radius * sin (i * G_PI / half));
cairo_stroke (cr);
cairo_restore (cr);
}
}
void
_gtk_style_shade (const GdkColor *a,
GdkColor *b,
gdouble k)
{
gdouble red;
gdouble green;
gdouble blue;
red = (gdouble) a->red / 65535.0;
green = (gdouble) a->green / 65535.0;
blue = (gdouble) a->blue / 65535.0;
rgb_to_hls (&red, &green, &blue);
green *= k;
if (green > 1.0)
green = 1.0;
else if (green < 0.0)
green = 0.0;
blue *= k;
if (blue > 1.0)
blue = 1.0;
else if (blue < 0.0)
blue = 0.0;
hls_to_rgb (&red, &green, &blue);
b->red = red * 65535.0;
b->green = green * 65535.0;
b->blue = blue * 65535.0;
}
static void
rgb_to_hls (gdouble *r,
gdouble *g,
gdouble *b)
{
gdouble min;
gdouble max;
gdouble red;
gdouble green;
gdouble blue;
gdouble h, l, s;
gdouble delta;
red = *r;
green = *g;
blue = *b;
if (red > green)
{
if (red > blue)
max = red;
else
max = blue;
if (green < blue)
min = green;
else
min = blue;
}
else
{
if (green > blue)
max = green;
else
max = blue;
if (red < blue)
min = red;
else
min = blue;
}
l = (max + min) / 2;
s = 0;
h = 0;
if (max != min)
{
if (l <= 0.5)
s = (max - min) / (max + min);
else
s = (max - min) / (2 - max - min);
delta = max -min;
if (red == max)
h = (green - blue) / delta;
else if (green == max)
h = 2 + (blue - red) / delta;
else if (blue == max)
h = 4 + (red - green) / delta;
h *= 60;
if (h < 0.0)
h += 360;
}
*r = h;
*g = l;
*b = s;
}
static void
hls_to_rgb (gdouble *h,
gdouble *l,
gdouble *s)
{
gdouble hue;
gdouble lightness;
gdouble saturation;
gdouble m1, m2;
gdouble r, g, b;
lightness = *l;
saturation = *s;
if (lightness <= 0.5)
m2 = lightness * (1 + saturation);
else
m2 = lightness + saturation - lightness * saturation;
m1 = 2 * lightness - m2;
if (saturation == 0)
{
*h = lightness;
*l = lightness;
*s = lightness;
}
else
{
hue = *h + 120;
while (hue > 360)
hue -= 360;
while (hue < 0)
hue += 360;
if (hue < 60)
r = m1 + (m2 - m1) * hue / 60;
else if (hue < 180)
r = m2;
else if (hue < 240)
r = m1 + (m2 - m1) * (240 - hue) / 60;
else
r = m1;
hue = *h;
while (hue > 360)
hue -= 360;
while (hue < 0)
hue += 360;
if (hue < 60)
g = m1 + (m2 - m1) * hue / 60;
else if (hue < 180)
g = m2;
else if (hue < 240)
g = m1 + (m2 - m1) * (240 - hue) / 60;
else
g = m1;
hue = *h - 120;
while (hue > 360)
hue -= 360;
while (hue < 0)
hue += 360;
if (hue < 60)
b = m1 + (m2 - m1) * hue / 60;
else if (hue < 180)
b = m2;
else if (hue < 240)
b = m1 + (m2 - m1) * (240 - hue) / 60;
else
b = m1;
*h = r;
*l = g;
*s = b;
}
}
/**
* gtk_paint_hline:
* @style: a #GtkStyle
* @cr: a #caio_t
* @state_type: a state
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x1: the starting x coordinate
* @x2: the ending x coordinate
* @y: the y coordinate
*
* Draws a horizontal line from (@x1, @y) to (@x2, @y) in @cr
* using the given style and state.
*
* Deprecated:3.0: Use gtk_render_line() instead
**/
void
gtk_paint_hline (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint x1,
gint x2,
gint y)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (cr != NULL);
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_hline != NULL);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_hline (style, cr, state_type,
widget, detail,
x1, x2, y);
cairo_restore (cr);
}
/**
* gtk_paint_vline:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @y1_: the starting y coordinate
* @y2_: the ending y coordinate
* @x: the x coordinate
*
* Draws a vertical line from (@x, @y1_) to (@x, @y2_) in @cr
* using the given style and state.
*
* Deprecated:3.0: Use gtk_render_line() instead
*/
void
gtk_paint_vline (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint y1_,
gint y2_,
gint x)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (cr != NULL);
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_vline != NULL);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_vline (style, cr, state_type,
widget, detail,
y1_, y2_, x);
cairo_restore (cr);
}
/**
* gtk_paint_shadow:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @shadow_type: type of shadow to draw
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x: x origin of the rectangle
* @y: y origin of the rectangle
* @width: width of the rectangle
* @height: width of the rectangle
*
* Draws a shadow around the given rectangle in @cr
* using the given style and state and shadow type.
*
* Deprecated:3.0: Use gtk_render_frame() instead
*/
void
gtk_paint_shadow (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_shadow != NULL);
g_return_if_fail (cr != NULL);
g_return_if_fail (width >= 0);
g_return_if_fail (height >= 0);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_shadow (style, cr, state_type, shadow_type,
widget, detail,
x, y, width, height);
cairo_restore (cr);
}
/**
* gtk_paint_arrow:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @shadow_type: the type of shadow to draw
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @arrow_type: the type of arrow to draw
* @fill: %TRUE if the arrow tip should be filled
* @x: x origin of the rectangle to draw the arrow in
* @y: y origin of the rectangle to draw the arrow in
* @width: width of the rectangle to draw the arrow in
* @height: height of the rectangle to draw the arrow in
*
* Draws an arrow in the given rectangle on @cr using the given
* parameters. @arrow_type determines the direction of the arrow.
*
* Deprecated:3.0: Use gtk_render_arrow() instead
*/
void
gtk_paint_arrow (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
GtkArrowType arrow_type,
gboolean fill,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_arrow != NULL);
g_return_if_fail (cr != NULL);
g_return_if_fail (width >= 0);
g_return_if_fail (height >= 0);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_arrow (style, cr, state_type, shadow_type,
widget, detail,
arrow_type, fill, x, y, width, height);
cairo_restore (cr);
}
/**
* gtk_paint_diamond:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @shadow_type: the type of shadow to draw
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x: x origin of the rectangle to draw the diamond in
* @y: y origin of the rectangle to draw the diamond in
* @width: width of the rectangle to draw the diamond in
* @height: height of the rectangle to draw the diamond in
*
* Draws a diamond in the given rectangle on @window using the given
* parameters.
*
* Deprecated:3.0: Use cairo instead
*/
void
gtk_paint_diamond (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_diamond != NULL);
g_return_if_fail (cr != NULL);
g_return_if_fail (width >= 0);
g_return_if_fail (height >= 0);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_diamond (style, cr, state_type, shadow_type,
widget, detail,
x, y, width, height);
cairo_restore (cr);
}
/**
* gtk_paint_box:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @shadow_type: the type of shadow to draw
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x: x origin of the box
* @y: y origin of the box
* @width: the width of the box
* @height: the height of the box
*
* Draws a box on @cr with the given parameters.
*
* Deprecated:3.0: Use gtk_render_frame() and gtk_render_background() instead
*/
void
gtk_paint_box (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_box != NULL);
g_return_if_fail (cr != NULL);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_box (style, cr, state_type, shadow_type,
widget, detail,
x, y, width, height);
cairo_restore (cr);
}
/**
* gtk_paint_flat_box:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @shadow_type: the type of shadow to draw
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x: x origin of the box
* @y: y origin of the box
* @width: the width of the box
* @height: the height of the box
*
* Draws a flat box on @cr with the given parameters.
*
* Deprecated:3.0: Use gtk_render_frame() and gtk_render_background() instead
*/
void
gtk_paint_flat_box (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_flat_box != NULL);
g_return_if_fail (cr != NULL);
g_return_if_fail (width >= 0);
g_return_if_fail (height >= 0);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_flat_box (style, cr, state_type, shadow_type,
widget, detail,
x, y, width, height);
cairo_restore (cr);
}
/**
* gtk_paint_check:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @shadow_type: the type of shadow to draw
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x: x origin of the rectangle to draw the check in
* @y: y origin of the rectangle to draw the check in
* @width: the width of the rectangle to draw the check in
* @height: the height of the rectangle to draw the check in
*
* Draws a check button indicator in the given rectangle on @cr with
* the given parameters.
*
* Deprecated:3.0: Use gtk_render_check() instead
*/
void
gtk_paint_check (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_check != NULL);
g_return_if_fail (cr != NULL);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_check (style, cr, state_type, shadow_type,
widget, detail,
x, y, width, height);
cairo_restore (cr);
}
/**
* gtk_paint_option:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @shadow_type: the type of shadow to draw
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x: x origin of the rectangle to draw the option in
* @y: y origin of the rectangle to draw the option in
* @width: the width of the rectangle to draw the option in
* @height: the height of the rectangle to draw the option in
*
* Draws a radio button indicator in the given rectangle on @cr with
* the given parameters.
*
* Deprecated:3.0: Use gtk_render_option() instead
*/
void
gtk_paint_option (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_option != NULL);
g_return_if_fail (cr != NULL);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_option (style, cr, state_type, shadow_type,
widget, detail,
x, y, width, height);
cairo_restore (cr);
}
/**
* gtk_paint_tab:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @shadow_type: the type of shadow to draw
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x: x origin of the rectangle to draw the tab in
* @y: y origin of the rectangle to draw the tab in
* @width: the width of the rectangle to draw the tab in
* @height: the height of the rectangle to draw the tab in
*
* Draws an option menu tab (i.e. the up and down pointing arrows)
* in the given rectangle on @cr using the given parameters.
*
* Deprecated:3.0: Use cairo instead
*/
void
gtk_paint_tab (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_tab != NULL);
g_return_if_fail (cr != NULL);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_tab (style, cr, state_type, shadow_type,
widget, detail,
x, y, width, height);
cairo_restore (cr);
}
/**
* gtk_paint_shadow_gap:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @shadow_type: type of shadow to draw
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x: x origin of the rectangle
* @y: y origin of the rectangle
* @width: width of the rectangle
* @height: width of the rectangle
* @gap_side: side in which to leave the gap
* @gap_x: starting position of the gap
* @gap_width: width of the gap
*
* Draws a shadow around the given rectangle in @cr
* using the given style and state and shadow type, leaving a
* gap in one side.
*
* Deprecated:3.0: Use gtk_render_frame_gap() instead
*/
void
gtk_paint_shadow_gap (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkPositionType gap_side,
gint gap_x,
gint gap_width)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_shadow_gap != NULL);
g_return_if_fail (cr != NULL);
g_return_if_fail (width >= 0);
g_return_if_fail (height >= 0);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_shadow_gap (style, cr, state_type, shadow_type,
widget, detail,
x, y, width, height, gap_side, gap_x, gap_width);
cairo_restore (cr);
}
/**
* gtk_paint_box_gap:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @shadow_type: type of shadow to draw
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x: x origin of the rectangle
* @y: y origin of the rectangle
* @width: width of the rectangle
* @height: width of the rectangle
* @gap_side: side in which to leave the gap
* @gap_x: starting position of the gap
* @gap_width: width of the gap
*
* Draws a box in @cr using the given style and state and shadow type,
* leaving a gap in one side.
*
* Deprecated:3.0: Use gtk_render_frame_gap() instead
*/
void
gtk_paint_box_gap (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkPositionType gap_side,
gint gap_x,
gint gap_width)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_box_gap != NULL);
g_return_if_fail (cr != NULL);
g_return_if_fail (width >= 0);
g_return_if_fail (height >= 0);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_box_gap (style, cr, state_type, shadow_type,
widget, detail,
x, y, width, height, gap_side, gap_x, gap_width);
cairo_restore (cr);
}
/**
* gtk_paint_extension:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @shadow_type: type of shadow to draw
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x: x origin of the extension
* @y: y origin of the extension
* @width: width of the extension
* @height: width of the extension
* @gap_side: the side on to which the extension is attached
*
* Draws an extension, i.e. a notebook tab.
*
* Deprecated:3.0: Use gtk_render_extension() instead
**/
void
gtk_paint_extension (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkPositionType gap_side)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_extension != NULL);
g_return_if_fail (cr != NULL);
g_return_if_fail (width >= 0);
g_return_if_fail (height >= 0);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_extension (style, cr, state_type, shadow_type,
widget, detail,
x, y, width, height, gap_side);
cairo_restore (cr);
}
/**
* gtk_paint_focus:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x: the x origin of the rectangle around which to draw a focus indicator
* @y: the y origin of the rectangle around which to draw a focus indicator
* @width: the width of the rectangle around which to draw a focus indicator
* @height: the height of the rectangle around which to draw a focus indicator
*
* Draws a focus indicator around the given rectangle on @cr using the
* given style.
*
* Deprecated:3.0: Use gtk_render_focus() instead
*/
void
gtk_paint_focus (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_focus != NULL);
g_return_if_fail (cr != NULL);
g_return_if_fail (width >= 0);
g_return_if_fail (height >= 0);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_focus (style, cr, state_type,
widget, detail,
x, y, width, height);
cairo_restore (cr);
}
/**
* gtk_paint_slider:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @shadow_type: a shadow
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x: the x origin of the rectangle in which to draw a slider
* @y: the y origin of the rectangle in which to draw a slider
* @width: the width of the rectangle in which to draw a slider
* @height: the height of the rectangle in which to draw a slider
* @orientation: the orientation to be used
*
* Draws a slider in the given rectangle on @cr using the
* given style and orientation.
*
* Deprecated:3.0: Use gtk_render_slider() instead
**/
void
gtk_paint_slider (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkOrientation orientation)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_slider != NULL);
g_return_if_fail (cr != NULL);
g_return_if_fail (width >= 0);
g_return_if_fail (height >= 0);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_slider (style, cr, state_type, shadow_type,
widget, detail,
x, y, width, height, orientation);
cairo_restore (cr);
}
/**
* gtk_paint_handle:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @shadow_type: type of shadow to draw
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x: x origin of the handle
* @y: y origin of the handle
* @width: with of the handle
* @height: height of the handle
* @orientation: the orientation of the handle
*
* Draws a handle as used in #GtkHandleBox and #GtkPaned.
*
* Deprecated:3.0: Use gtk_render_handle() instead
**/
void
gtk_paint_handle (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkShadowType shadow_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
gint width,
gint height,
GtkOrientation orientation)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_handle != NULL);
g_return_if_fail (cr != NULL);
g_return_if_fail (width >= 0);
g_return_if_fail (height >= 0);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_handle (style, cr, state_type, shadow_type,
widget, detail,
x, y, width, height, orientation);
cairo_restore (cr);
}
/**
* gtk_paint_expander:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x: the x position to draw the expander at
* @y: the y position to draw the expander at
* @expander_style: the style to draw the expander in; determines
* whether the expander is collapsed, expanded, or in an
* intermediate state.
*
* Draws an expander as used in #GtkTreeView. @x and @y specify the
* center the expander. The size of the expander is determined by the
* "expander-size" style property of @widget. (If widget is not
* specified or doesn't have an "expander-size" property, an
* unspecified default size will be used, since the caller doesn't
* have sufficient information to position the expander, this is
* likely not useful.) The expander is expander_size pixels tall
* in the collapsed position and expander_size pixels wide in the
* expanded position.
*
* Deprecated:3.0: Use gtk_render_expander() instead
**/
void
gtk_paint_expander (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
GtkExpanderStyle expander_style)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_expander != NULL);
g_return_if_fail (cr != NULL);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_expander (style, cr, state_type,
widget, detail,
x, y, expander_style);
cairo_restore (cr);
}
/**
* gtk_paint_layout:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @use_text: whether to use the text or foreground
* graphics context of @style
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @x: x origin
* @y: y origin
* @layout: the layout to draw
*
* Draws a layout on @cr using the given parameters.
*
* Deprecated:3.0: Use gtk_render_layout() instead
**/
void
gtk_paint_layout (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
gboolean use_text,
GtkWidget *widget,
const gchar *detail,
gint x,
gint y,
PangoLayout *layout)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_layout != NULL);
g_return_if_fail (cr != NULL);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_layout (style, cr, state_type, use_text,
widget, detail,
x, y, layout);
cairo_restore (cr);
}
/**
* gtk_paint_resize_grip:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @widget: (allow-none): the widget
* @detail: (allow-none): a style detail
* @edge: the edge in which to draw the resize grip
* @x: the x origin of the rectangle in which to draw the resize grip
* @y: the y origin of the rectangle in which to draw the resize grip
* @width: the width of the rectangle in which to draw the resize grip
* @height: the height of the rectangle in which to draw the resize grip
*
* Draws a resize grip in the given rectangle on @cr using the given
* parameters.
*
* Deprecated:3.0: Use gtk_render_handle() instead
*/
void
gtk_paint_resize_grip (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
GdkWindowEdge edge,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_resize_grip != NULL);
g_return_if_fail (cr != NULL);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_resize_grip (style, cr, state_type,
widget, detail,
edge, x, y, width, height);
cairo_restore (cr);
}
/**
* gtk_paint_spinner:
* @style: a #GtkStyle
* @cr: a #cairo_t
* @state_type: a state
* @widget: (allow-none): the widget (may be %NULL)
* @detail: (allow-none): a style detail (may be %NULL)
* @step: the nth step, a value between 0 and #GtkSpinner:num-steps
* @x: the x origin of the rectangle in which to draw the spinner
* @y: the y origin of the rectangle in which to draw the spinner
* @width: the width of the rectangle in which to draw the spinner
* @height: the height of the rectangle in which to draw the spinner
*
* Draws a spinner on @window using the given parameters.
*
* Deprecated:3.0: Use gtk_render_activity() instead
*/
void
gtk_paint_spinner (GtkStyle *style,
cairo_t *cr,
GtkStateType state_type,
GtkWidget *widget,
const gchar *detail,
guint step,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (GTK_IS_STYLE (style));
g_return_if_fail (cr != NULL);
g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_spinner != NULL);
cairo_save (cr);
GTK_STYLE_GET_CLASS (style)->draw_spinner (style, cr, state_type,
widget, detail,
step, x, y, width, height);
cairo_restore (cr);
}
typedef struct _CursorInfo CursorInfo;
struct _CursorInfo
{
GType for_type;
GdkColor primary;
GdkColor secondary;
};
static const GdkColor *
get_insertion_cursor_color (GtkWidget *widget,
gboolean is_primary)
{
CursorInfo *cursor_info;
GtkStyle *style;
GdkColor *cursor_color;
style = gtk_widget_get_style (widget);
cursor_info = g_object_get_data (G_OBJECT (style), "gtk-style-cursor-info");
if (!cursor_info)
{
cursor_info = g_new0 (CursorInfo, 1);
g_object_set_data (G_OBJECT (style), I_("gtk-style-cursor-info"), cursor_info);
cursor_info->for_type = G_TYPE_INVALID;
}
/* We have to keep track of the type because gtk_widget_style_get()
* can return different results when called on the same property and
* same style but for different widgets. :-(. That is,
* GtkEntry::cursor-color = "red" in a style will modify the cursor
* color for entries but not for text view.
*/
if (cursor_info->for_type != G_OBJECT_TYPE (widget))
{
cursor_info->for_type = G_OBJECT_TYPE (widget);
/* Cursors in text widgets are drawn only in NORMAL state,
* so we can use text[GTK_STATE_NORMAL] as text color here */
gtk_widget_style_get (widget, "cursor-color", &cursor_color, NULL);
if (cursor_color)
{
cursor_info->primary = *cursor_color;
gdk_color_free (cursor_color);
}
else
{
cursor_info->primary = style->text[GTK_STATE_NORMAL];
}
gtk_widget_style_get (widget, "secondary-cursor-color", &cursor_color, NULL);
if (cursor_color)
{
cursor_info->secondary = *cursor_color;
gdk_color_free (cursor_color);
}
else
{
/* text_aa is the average of text and base colors,
* in usual black-on-white case it's grey. */
cursor_info->secondary = style->text_aa[GTK_STATE_NORMAL];
}
}
if (is_primary)
return &cursor_info->primary;
else
return &cursor_info->secondary;
}
void
_gtk_widget_get_cursor_color (GtkWidget *widget,
GdkColor *color)
{
GdkColor *style_color;
g_return_if_fail (GTK_IS_WIDGET (widget));
g_return_if_fail (color != NULL);
gtk_widget_style_get (widget, "cursor-color", &style_color, NULL);
if (style_color)
{
*color = *style_color;
gdk_color_free (style_color);
}
else
*color = gtk_widget_get_style (widget)->text[GTK_STATE_NORMAL];
}
/**
* gtk_draw_insertion_cursor:
* @widget: a #GtkWidget
* @cr: cairo context to draw to
* @location: location where to draw the cursor (@location->width is ignored)
* @is_primary: if the cursor should be the primary cursor color.
* @direction: whether the cursor is left-to-right or
* right-to-left. Should never be #GTK_TEXT_DIR_NONE
* @draw_arrow: %TRUE to draw a directional arrow on the
* cursor. Should be %FALSE unless the cursor is split.
*
* Draws a text caret on @cr at @location. This is not a style function
* but merely a convenience function for drawing the standard cursor shape.
*
* Since: 3.0
**/
void
gtk_draw_insertion_cursor (GtkWidget *widget,
cairo_t *cr,
const GdkRectangle *location,
gboolean is_primary,
GtkTextDirection direction,
gboolean draw_arrow)
{
gint stem_width;
gint arrow_width;
gint x, y;
gfloat cursor_aspect_ratio;
gint offset;
g_return_if_fail (GTK_IS_WIDGET (widget));
g_return_if_fail (cr != NULL);
g_return_if_fail (location != NULL);
g_return_if_fail (direction != GTK_TEXT_DIR_NONE);
gdk_cairo_set_source_color (cr, get_insertion_cursor_color (widget, is_primary));
/* When changing the shape or size of the cursor here,
* propagate the changes to gtktextview.c:text_window_invalidate_cursors().
*/
gtk_widget_style_get (widget, "cursor-aspect-ratio", &cursor_aspect_ratio, NULL);
stem_width = location->height * cursor_aspect_ratio + 1;
arrow_width = stem_width + 1;
/* put (stem_width % 2) on the proper side of the cursor */
if (direction == GTK_TEXT_DIR_LTR)
offset = stem_width / 2;
else
offset = stem_width - stem_width / 2;
cairo_rectangle (cr,
location->x - offset, location->y,
stem_width, location->height);
cairo_fill (cr);
if (draw_arrow)
{
if (direction == GTK_TEXT_DIR_RTL)
{
x = location->x - offset - 1;
y = location->y + location->height - arrow_width * 2 - arrow_width + 1;
cairo_move_to (cr, x, y + 1);
cairo_line_to (cr, x - arrow_width, y + arrow_width);
cairo_line_to (cr, x, y + 2 * arrow_width);
cairo_fill (cr);
}
else if (direction == GTK_TEXT_DIR_LTR)
{
x = location->x + stem_width - offset;
y = location->y + location->height - arrow_width * 2 - arrow_width + 1;
cairo_move_to (cr, x, y + 1);
cairo_line_to (cr, x + arrow_width, y + arrow_width);
cairo_line_to (cr, x, y + 2 * arrow_width);
cairo_fill (cr);
}
}
}
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