/* 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 #include #include #include #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" /** * 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. */ #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 { GSList *color_hashes; GtkStyleContext *context; }; 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_realize (GtkStyle *style, GdkVisual *visual); 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 style_unrealize_cursors (GtkStyle *style); /* * 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 --- */ /** * _gtk_style_init_for_settings: * @style: a #GtkStyle * @settings: a #GtkSettings * * Initializes the font description in @style according to the default * font name of @settings. This is called for gtk_style_new() with * the settings for the default screen (if any); if we are creating * a style for a particular screen, we then call it again in a * location where we know the correct settings. * The reason for this is that gtk_rc_style_create_style() doesn't * take the screen for an argument. **/ void _gtk_style_init_for_settings (GtkStyle *style, GtkSettings *settings) { const gchar *font_name = _gtk_rc_context_get_default_font_name (settings); if (style->font_desc) pango_font_description_free (style->font_desc); style->font_desc = pango_font_description_from_string (font_name); if (!pango_font_description_get_family (style->font_desc)) { g_warning ("Default font does not have a family set"); pango_font_description_set_family (style->font_desc, "Sans"); } if (pango_font_description_get_size (style->font_desc) <= 0) { g_warning ("Default font does not have a positive size"); pango_font_description_set_size (style->font_desc, 10 * PANGO_SCALE); } } static void gtk_style_init (GtkStyle *style) { gint i; GtkSettings *settings = gtk_settings_get_default (); if (settings) _gtk_style_init_for_settings (style, settings); else 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->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_WRITABLE)); /** * 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 clear_property_cache (GtkStyle *style) { if (style->property_cache) { guint i; for (i = 0; i < style->property_cache->len; i++) { PropertyValue *node = &g_array_index (style->property_cache, PropertyValue, i); g_param_spec_unref (node->pspec); g_value_unset (&node->value); } g_array_free (style->property_cache, TRUE); style->property_cache = NULL; } } 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); clear_property_cache (style); /* 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); g_slist_foreach (priv->color_hashes, (GFunc) g_hash_table_unref, NULL); g_slist_free (priv->color_hashes); 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) 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 set_color (GtkStyle *style, GtkStyleContext *context, GtkStateType state, GtkRcFlags prop) { GdkColor *color = NULL; switch (prop) { case GTK_RC_BG: gtk_style_context_get (context, state, "background-color", &color, NULL); if (color) style->bg[state] = *color; break; case GTK_RC_FG: gtk_style_context_get (context, state, "foreground-color", &color, NULL); if (color) style->fg[state] = *color; break; case GTK_RC_TEXT: gtk_style_context_get (context, state, "text-color", &color, NULL); if (color) style->text[state] = *color; break; case GTK_RC_BASE: gtk_style_context_get (context, state, "base-color", &color, NULL); if (color) style->base[state] = *color; break; } if (color) gdk_color_free (color); } static void gtk_style_update_from_context (GtkStyle *style) { GtkStylePrivate *priv; GtkStateType state; priv = GTK_STYLE_GET_PRIVATE (style); for (state = GTK_STATE_NORMAL; state <= GTK_STATE_INSENSITIVE; state++) { set_color (style, priv->context, state, GTK_RC_BG); set_color (style, priv->context, state, GTK_RC_FG); set_color (style, priv->context, state, GTK_RC_BASE); set_color (style, priv->context, state, GTK_RC_TEXT); } /* FIXME: thickness */ } 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)); /* FIXME: Listen to context changes */ } } /** * gtk_style_copy: * @style: a #GtkStyle * * Creates a copy of the passed in #GtkStyle object. * * Returns: (transfer full): a copy of @style */ 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; } static GtkStyle* gtk_style_duplicate (GtkStyle *style) { GtkStyle *new_style; g_return_val_if_fail (GTK_IS_STYLE (style), NULL); new_style = gtk_style_copy (style); /* All the styles in the list have the same * style->styles pointer. When we insert a new * style, we append it to the list to avoid having * to update the existing ones. */ style->styles = g_slist_append (style->styles, new_style); new_style->styles = style->styles; return new_style; } /** * gtk_style_new: * @returns: a new #GtkStyle. * * Creates a new #GtkStyle. **/ 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: * style = gtk_style_attach (style, window) * * 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. */ GtkStyle* gtk_style_attach (GtkStyle *style, GdkWindow *window) { GSList *styles; GtkStyle *new_style = NULL; GdkVisual *visual; g_return_val_if_fail (GTK_IS_STYLE (style), NULL); g_return_val_if_fail (window != NULL, NULL); visual = gdk_window_get_visual (window); if (!style->styles) style->styles = g_slist_append (NULL, style); styles = style->styles; while (styles) { new_style = styles->data; if (new_style->visual == visual) break; new_style = NULL; styles = styles->next; } if (!new_style) { styles = style->styles; while (styles) { new_style = styles->data; if (new_style->attach_count == 0) { gtk_style_realize (new_style, visual); break; } new_style = NULL; styles = styles->next; } } if (!new_style) { new_style = gtk_style_duplicate (style); gtk_style_realize (new_style, visual); } /* A style gets a refcount from being attached */ if (new_style->attach_count == 0) g_object_ref (new_style); /* Another refcount belongs to the parent */ if (style != new_style) { g_object_unref (style); g_object_ref (new_style); } new_style->attach_count++; return new_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(). * */ void gtk_style_detach (GtkStyle *style) { g_return_if_fail (GTK_IS_STYLE (style)); g_return_if_fail (style->attach_count > 0); style->attach_count -= 1; if (style->attach_count == 0) { g_signal_emit (style, unrealize_signal, 0); g_object_unref (style->visual); style->visual = NULL; if (style->private_font_desc) { pango_font_description_free (style->private_font_desc); style->private_font_desc = NULL; } g_object_unref (style); } } static void gtk_style_realize (GtkStyle *style, GdkVisual *visual) { style->visual = g_object_ref (visual); g_signal_emit (style, realize_signal, 0); } /** * 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 */ 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); return gtk_style_context_lookup_icon_set (priv->context, 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 **/ gboolean gtk_style_lookup_color (GtkStyle *style, const char *color_name, GdkColor *color) { GtkStylePrivate *priv; 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; return gtk_style_context_lookup_color (priv->context, color_name, color); } /** * 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. */ 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) { GtkStylePrivate *priv = GTK_STYLE_GET_PRIVATE (style); GtkStylePrivate *src_priv = GTK_STYLE_GET_PRIVATE (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); g_slist_foreach (priv->color_hashes, (GFunc) g_hash_table_unref, NULL); g_slist_free (priv->color_hashes); priv->color_hashes = g_slist_copy (src_priv->color_hashes); g_slist_foreach (priv->color_hashes, (GFunc) g_hash_table_ref, NULL); /* don't copy, just clear cache */ clear_property_cache (style); } static void gtk_style_real_init_from_rc (GtkStyle *style, GtkRcStyle *rc_style) { GtkStylePrivate *priv = GTK_STYLE_GET_PRIVATE (style); gint i; /* cache _should_ be still empty */ clear_property_cache (style); if (rc_style->font_desc) pango_font_description_merge (style->font_desc, rc_style->font_desc, TRUE); for (i = 0; i < 5; i++) { if (rc_style->color_flags[i] & GTK_RC_FG) style->fg[i] = rc_style->fg[i]; if (rc_style->color_flags[i] & GTK_RC_BG) style->bg[i] = rc_style->bg[i]; if (rc_style->color_flags[i] & GTK_RC_TEXT) style->text[i] = rc_style->text[i]; if (rc_style->color_flags[i] & GTK_RC_BASE) style->base[i] = rc_style->base[i]; } if (rc_style->xthickness >= 0) style->xthickness = rc_style->xthickness; if (rc_style->ythickness >= 0) style->ythickness = rc_style->ythickness; style->icon_factories = g_slist_copy (rc_style->icon_factories); g_slist_foreach (style->icon_factories, (GFunc) g_object_ref, NULL); priv->color_hashes = g_slist_copy (_gtk_rc_style_get_color_hashes (rc_style)); g_slist_foreach (priv->color_hashes, (GFunc) g_hash_table_ref, NULL); } static gint style_property_values_cmp (gconstpointer bsearch_node1, gconstpointer bsearch_node2) { const PropertyValue *val1 = bsearch_node1; const PropertyValue *val2 = bsearch_node2; if (val1->widget_type == val2->widget_type) return val1->pspec < val2->pspec ? -1 : val1->pspec == val2->pspec ? 0 : 1; else return val1->widget_type < val2->widget_type ? -1 : 1; } /** * 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) { GtkWidgetClass *klass; GParamSpec *pspec; GtkRcPropertyParser parser; 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; } parser = g_param_spec_get_qdata (pspec, g_quark_from_static_string ("gtk-rc-property-parser")); peek_value = _gtk_style_peek_property_value (style, widget_type, pspec, parser); 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 va_list 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) { const char *property_name; GtkWidgetClass *klass; g_return_if_fail (GTK_IS_STYLE (style)); klass = g_type_class_ref (widget_type); property_name = first_property_name; while (property_name) { GParamSpec *pspec; GtkRcPropertyParser parser; 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; } parser = g_param_spec_get_qdata (pspec, g_quark_from_static_string ("gtk-rc-property-parser")); peek_value = _gtk_style_peek_property_value (style, widget_type, pspec, parser); 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); } const GValue* _gtk_style_peek_property_value (GtkStyle *style, GType widget_type, GParamSpec *pspec, GtkRcPropertyParser parser) { PropertyValue *pcache, key = { 0, NULL, { 0, } }; const GtkRcProperty *rcprop = NULL; guint i; g_return_val_if_fail (GTK_IS_STYLE (style), NULL); g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), NULL); g_return_val_if_fail (g_type_is_a (pspec->owner_type, GTK_TYPE_WIDGET), NULL); g_return_val_if_fail (g_type_is_a (widget_type, pspec->owner_type), NULL); key.widget_type = widget_type; key.pspec = pspec; /* need value cache array */ if (!style->property_cache) style->property_cache = g_array_new (FALSE, FALSE, sizeof (PropertyValue)); else { pcache = bsearch (&key, style->property_cache->data, style->property_cache->len, sizeof (PropertyValue), style_property_values_cmp); if (pcache) return &pcache->value; } i = 0; while (i < style->property_cache->len && style_property_values_cmp (&key, &g_array_index (style->property_cache, PropertyValue, i)) >= 0) i++; g_array_insert_val (style->property_cache, i, key); pcache = &g_array_index (style->property_cache, PropertyValue, i); /* cache miss, initialize value type, then set contents */ g_param_spec_ref (pcache->pspec); g_value_init (&pcache->value, G_PARAM_SPEC_VALUE_TYPE (pspec)); /* value provided by rc style? */ if (style->rc_style) { GQuark prop_quark = g_quark_from_string (pspec->name); do { rcprop = _gtk_rc_style_lookup_rc_property (style->rc_style, g_type_qname (widget_type), prop_quark); if (rcprop) break; widget_type = g_type_parent (widget_type); } while (g_type_is_a (widget_type, pspec->owner_type)); } /* when supplied by rc style, we need to convert */ if (rcprop && !_gtk_settings_parse_convert (parser, &rcprop->value, pspec, &pcache->value)) { gchar *contents = g_strdup_value_contents (&rcprop->value); g_message ("%s: failed to retrieve property `%s::%s' of type `%s' from rc file value \"%s\" of type `%s'", rcprop->origin ? rcprop->origin : "(for origin information, set GTK_DEBUG)", g_type_name (pspec->owner_type), pspec->name, g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)), contents, G_VALUE_TYPE_NAME (&rcprop->value)); g_free (contents); rcprop = NULL; /* needs default */ } /* not supplied by rc style (or conversion failed), revert to default */ if (!rcprop) g_param_value_set_default (pspec, &pcache->value); return &pcache->value; } static cairo_pattern_t * load_background (GdkVisual *visual, GdkColor *bg_color, const gchar *filename) { if (filename == NULL) { return cairo_pattern_create_rgb (bg_color->red / 65535.0, bg_color->green / 65535.0, bg_color->blue / 65535.0); } if (strcmp (filename, "") == 0) return NULL; else { GdkPixbuf *pixbuf; cairo_surface_t *surface; cairo_pattern_t *pattern; cairo_t *cr; GdkScreen *screen = gdk_visual_get_screen (visual); pixbuf = gdk_pixbuf_new_from_file (filename, NULL); if (!pixbuf) return NULL; surface = gdk_window_create_similar_surface (gdk_screen_get_root_window (screen), CAIRO_CONTENT_COLOR, gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf)); cr = cairo_create (surface); gdk_cairo_set_source_color (cr, bg_color); cairo_paint (cr); gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0); cairo_paint (cr); cairo_destroy (cr); g_object_unref (pixbuf); pattern = cairo_pattern_create_for_surface (surface); cairo_surface_destroy (surface); return pattern; } } static void gtk_style_real_realize (GtkStyle *style) { gint i; 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++) { const char *image_name; if (style->rc_style) image_name = style->rc_style->bg_pixmap_name[i]; else image_name = NULL; style->background[i] = load_background (style->visual, &style->bg[i], image_name); } } static void gtk_style_real_unrealize (GtkStyle *style) { int i; for (i = 0; i < 5; i++) { if (style->background[i]) { cairo_pattern_destroy (style->background[i]); style->background[i] = NULL; } } style_unrealize_cursors (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 */ 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: * @area: (allow-none): * @x: * @y: * @width: * @height: */ 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 * 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 (GtkStyle *style, GtkWidget *widget, GtkIconSize size, gint *width, gint *height) { GdkScreen *screen; GtkSettings *settings; if (widget && gtk_widget_has_screen (widget)) { screen = gtk_widget_get_screen (widget); settings = gtk_settings_get_for_screen (screen); } else if (style && style->visual) { screen = gdk_visual_get_screen (style->visual); settings = gtk_settings_get_for_screen (screen); } else { settings = gtk_settings_get_default (); GTK_NOTE (MULTIHEAD, g_warning ("Using the default screen for gtk_default_render_icon()")); } return gtk_icon_size_lookup_for_settings (settings, size, width, height); } static GdkPixbuf * gtk_default_render_icon (GtkStyle *style, const GtkIconSource *source, GtkTextDirection direction, GtkStateType state, GtkIconSize size, GtkWidget *widget, const gchar *detail) { gint width = 1; gint height = 1; GdkPixbuf *scaled; GdkPixbuf *stated; GdkPixbuf *base_pixbuf; /* Oddly, style can be NULL in this function, because * GtkIconSet can be used without a style and if so * it uses this function. */ base_pixbuf = gtk_icon_source_get_pixbuf (source); g_return_val_if_fail (base_pixbuf != NULL, NULL); if (size != (GtkIconSize) -1 && !lookup_icon_size(style, widget, 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_INSENSITIVE) { stated = gdk_pixbuf_copy (scaled); gdk_pixbuf_saturate_and_pixelate (scaled, stated, 0.8, TRUE); g_object_unref (scaled); } else if (state == GTK_STATE_PRELIGHT) { stated = gdk_pixbuf_copy (scaled); gdk_pixbuf_saturate_and_pixelate (scaled, stated, 1.2, FALSE); g_object_unref (scaled); } else { stated = scaled; } } else stated = scaled; return stated; } 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 _cairo_draw_rectangle (cairo_t *cr, GdkColor *color, gboolean filled, gint x, gint y, gint width, gint height) { gdk_cairo_set_source_color (cr, color); if (filled) { cairo_rectangle (cr, x, y, width, height); cairo_fill (cr); } else { cairo_rectangle (cr, x + 0.5, y + 0.5, width, height); cairo_stroke (cr); } } static void _cairo_draw_point (cairo_t *cr, GdkColor *color, gint x, gint y) { gdk_cairo_set_source_color (cr, color); cairo_rectangle (cr, x, y, 1, 1); cairo_fill (cr); } static void transform_detail_string (const gchar *detail, GtkStyleContext *context) { if (!detail) return; if (strcmp (detail, "arrow") == 0) gtk_style_context_set_class (context, "arrow"); else if (strcmp (detail, "button") == 0) gtk_style_context_set_class (context, "button"); else if (strcmp (detail, "buttondefault") == 0) { gtk_style_context_set_class (context, "button"); gtk_style_context_set_class (context, "default"); } else if (strcmp (detail, "calendar") == 0) gtk_style_context_set_class (context, "calendar"); else if (strcmp (detail, "cellcheck") == 0) { gtk_style_context_set_class (context, "cell"); gtk_style_context_set_class (context, "check"); } else if (strcmp (detail, "cellradio") == 0) { gtk_style_context_set_class (context, "cell"); gtk_style_context_set_class (context, "radio"); } else if (strcmp (detail, "checkbutton") == 0) gtk_style_context_set_class (context, "check"); else if (strcmp (detail, "check") == 0) { gtk_style_context_set_class (context, "check"); gtk_style_context_set_class (context, "menu"); } else if (strcmp (detail, "option") == 0) { gtk_style_context_set_class (context, "radio"); gtk_style_context_set_class (context, "menu"); } else if (strcmp (detail, "entry") == 0 || strcmp (detail, "entry_bg") == 0) gtk_style_context_set_class (context, "entry"); else if (strcmp (detail, "expander") == 0) gtk_style_context_set_class (context, "expander"); else if (strcmp (detail, "tooltip") == 0) gtk_style_context_set_class (context, "tooltip"); else if (strcmp (detail, "frame") == 0) gtk_style_context_set_class (context, "frame"); else if (strcmp (detail, "scrolled_window") == 0) gtk_style_context_set_class (context, "scrolled-window"); else if (strcmp (detail, "viewport") == 0 || strcmp (detail, "viewportbin") == 0) gtk_style_context_set_class (context, "viewport"); else if (strcmp (detail, "trough") == 0) { gtk_style_context_set_class (context, "scrollbar"); gtk_style_context_set_class (context, "trough"); } else if (strcmp (detail, "spinbutton") == 0) gtk_style_context_set_class (context, "spinbutton"); else if (strcmp (detail, "spinbutton_up") == 0) { gtk_style_context_set_class (context, "spinbutton"); gtk_style_context_set_class (context, "button"); gtk_style_context_set_junction_sides (context, GTK_JUNCTION_BOTTOM); } else if (strcmp (detail, "spinbutton_down") == 0) { gtk_style_context_set_class (context, "spinbutton"); gtk_style_context_set_class (context, "button"); gtk_style_context_set_junction_sides (context, GTK_JUNCTION_TOP); } 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_set_class (context, "cell"); gtk_style_context_set_region (context, "row", row); gtk_style_context_set_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 draw_thin_shadow (GtkStyle *style, cairo_t *cr, GtkStateType state, gint x, gint y, gint width, gint height) { GdkColor *gc1, *gc2; gc1 = &style->light[state]; gc2 = &style->dark[state]; _cairo_draw_line (cr, gc1, x, y + height - 1, x + width - 1, y + height - 1); _cairo_draw_line (cr, gc1, x + width - 1, y, x + width - 1, y + height - 1); _cairo_draw_line (cr, gc2, x, y, x + width - 2, y); _cairo_draw_line (cr, gc2, x, y, x, y + height - 2); } static void draw_spinbutton_shadow (GtkStyle *style, cairo_t *cr, GtkStateType state, GtkTextDirection direction, gint x, gint y, gint width, gint height) { if (direction == GTK_TEXT_DIR_LTR) { _cairo_draw_line (cr, &style->dark[state], x, y, x + width - 1, y); _cairo_draw_line (cr, &style->black, x, y + 1, x + width - 2, y + 1); _cairo_draw_line (cr, &style->black, x + width - 2, y + 2, x + width - 2, y + height - 3); _cairo_draw_line (cr, &style->light[state], x + width - 1, y + 1, x + width - 1, y + height - 2); _cairo_draw_line (cr, &style->light[state], x, y + height - 1, x + width - 1, y + height - 1); _cairo_draw_line (cr, &style->bg[state], x, y + height - 2, x + width - 2, y + height - 2); _cairo_draw_line (cr, &style->black, x, y + 2, x, y + height - 3); } else { _cairo_draw_line (cr, &style->dark[state], x, y, x + width - 1, y); _cairo_draw_line (cr, &style->dark[state], x, y + 1, x, y + height - 1); _cairo_draw_line (cr, &style->black, x + 1, y + 1, x + width - 1, y + 1); _cairo_draw_line (cr, &style->black, x + 1, y + 2, x + 1, y + height - 2); _cairo_draw_line (cr, &style->black, x + width - 1, y + 2, x + width - 1, y + height - 3); _cairo_draw_line (cr, &style->light[state], x + 1, y + height - 1, x + width - 1, y + height - 1); _cairo_draw_line (cr, &style->bg[state], x + 2, y + height - 2, x + width - 1, y + height - 2); } } static void draw_menu_shadow (GtkStyle *style, cairo_t *cr, GtkStateType state, gint x, gint y, gint width, gint height) { if (style->ythickness > 0) { if (style->ythickness > 1) { _cairo_draw_line (cr, &style->dark[state], x + 1, y + height - 2, x + width - 2, y + height - 2); _cairo_draw_line (cr, &style->black, x, y + height - 1, x + width - 1, y + height - 1); } else { _cairo_draw_line (cr, &style->dark[state], x + 1, y + height - 1, x + width - 1, y + height - 1); } } if (style->xthickness > 0) { if (style->xthickness > 1) { _cairo_draw_line (cr, &style->dark[state], x + width - 2, y + 1, x + width - 2, y + height - 2); _cairo_draw_line (cr, &style->black, x + width - 1, y, x + width - 1, y + height - 1); } else { _cairo_draw_line (cr, &style->dark[state], x + width - 1, y + 1, x + width - 1, y + height - 1); } } /* Light around top and left */ if (style->ythickness > 0) _cairo_draw_line (cr, &style->black, x, y, x + width - 2, y); if (style->xthickness > 0) _cairo_draw_line (cr, &style->black, x, y, x, y + height - 2); if (style->ythickness > 1) _cairo_draw_line (cr, &style->light[state], x + 1, y + 1, x + width - 3, y + 1); if (style->xthickness > 1) _cairo_draw_line (cr, &style->light[state], x + 1, y + 1, x + 1, y + height - 3); } static GtkTextDirection get_direction (GtkWidget *widget) { GtkTextDirection dir; if (widget) dir = gtk_widget_get_direction (widget); else dir = GTK_TEXT_DIR_LTR; return dir; } 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 calculate_arrow_geometry (GtkArrowType arrow_type, gint *x, gint *y, gint *width, gint *height) { gint w = *width; gint h = *height; switch (arrow_type) { case GTK_ARROW_UP: case GTK_ARROW_DOWN: w += (w % 2) - 1; h = (w / 2 + 1); if (h > *height) { h = *height; w = 2 * h - 1; } if (arrow_type == GTK_ARROW_DOWN) { if (*height % 2 == 1 || h % 2 == 0) *height += 1; } else { if (*height % 2 == 0 || h % 2 == 0) *height -= 1; } break; case GTK_ARROW_RIGHT: case GTK_ARROW_LEFT: h += (h % 2) - 1; w = (h / 2 + 1); if (w > *width) { w = *width; h = 2 * w - 1; } if (arrow_type == GTK_ARROW_RIGHT) { if (*width % 2 == 1 || w % 2 == 0) *width += 1; } else { if (*width % 2 == 0 || w % 2 == 0) *width -= 1; } break; default: /* should not be reached */ break; } *x += (*width - w) / 2; *y += (*height - h) / 2; *height = h; *width = w; } 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 (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 gboolean background_is_solid (GtkStyle *style, GtkStateType type) { if (style->background[type] == NULL) return FALSE; return cairo_pattern_get_type (style->background[type]) == CAIRO_PATTERN_TYPE_SOLID; } 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; } gtk_style_context_set_state (context, flags); cairo_save (cr); 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 GdkColor * get_darkened (const GdkColor *color, gint darken_count) { GdkColor src = *color; GdkColor shaded = *color; while (darken_count) { _gtk_style_shade (&src, &shaded, 0.93); src = shaded; --darken_count; } return gdk_color_copy (&shaded); } 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; 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_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_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_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_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_slider (context, cr, x, y, width, height, orientation); cairo_restore (cr); gtk_style_context_restore (context); } static void draw_dot (cairo_t *cr, GdkColor *light, GdkColor *dark, gint x, gint y, gushort size) { size = CLAMP (size, 2, 3); if (size == 2) { _cairo_draw_point (cr, light, x, y); _cairo_draw_point (cr, light, x+1, y+1); } else if (size == 3) { _cairo_draw_point (cr, light, x, y); _cairo_draw_point (cr, light, x+1, y); _cairo_draw_point (cr, light, x, y+1); _cairo_draw_point (cr, dark, x+1, y+2); _cairo_draw_point (cr, dark, x+2, y+1); _cairo_draw_point (cr, dark, x+2, y+2); } } 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, orientation); 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); 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_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) { gint skip; cairo_rectangle (cr, x, y, width, height); cairo_clip (cr); cairo_set_line_width (cr, 1.0); skip = -1; switch (edge) { case GDK_WINDOW_EDGE_NORTH_WEST: /* make it square */ if (width < height) height = width; else if (height < width) width = height; skip = 2; break; case GDK_WINDOW_EDGE_NORTH: if (width < height) height = width; break; case GDK_WINDOW_EDGE_NORTH_EAST: /* make it square, aligning to top right */ if (width < height) height = width; else if (height < width) { x += (width - height); width = height; } skip = 3; break; case GDK_WINDOW_EDGE_WEST: if (height < width) width = height; break; case GDK_WINDOW_EDGE_EAST: /* aligning to right */ if (height < width) { x += (width - height); width = height; } break; case GDK_WINDOW_EDGE_SOUTH_WEST: /* make it square, aligning to bottom left */ if (width < height) { y += (height - width); height = width; } else if (height < width) width = height; skip = 1; break; case GDK_WINDOW_EDGE_SOUTH: /* align to bottom */ if (width < height) { y += (height - width); height = width; } break; case GDK_WINDOW_EDGE_SOUTH_EAST: /* make it square, aligning to bottom right */ if (width < height) { y += (height - width); height = width; } else if (height < width) { x += (width - height); width = height; } skip = 0; break; default: g_assert_not_reached (); } switch (edge) { case GDK_WINDOW_EDGE_WEST: case GDK_WINDOW_EDGE_EAST: { gint xi; xi = x; while (xi < x + width) { _cairo_draw_line (cr, &style->light[state_type], xi, y, xi, y + height); xi++; _cairo_draw_line (cr, &style->dark[state_type], xi, y, xi, y + height); xi += 2; } } break; case GDK_WINDOW_EDGE_NORTH: case GDK_WINDOW_EDGE_SOUTH: { gint yi; yi = y; while (yi < y + height) { _cairo_draw_line (cr, &style->light[state_type], x, yi, x + width, yi); yi++; _cairo_draw_line (cr, &style->dark[state_type], x, yi, x + width, yi); yi+= 2; } } break; case GDK_WINDOW_EDGE_NORTH_WEST: { gint xi, yi; xi = x + width; yi = y + height; while (xi > x + 3) { _cairo_draw_line (cr, &style->dark[state_type], xi, y, x, yi); --xi; --yi; _cairo_draw_line (cr, &style->dark[state_type], xi, y, x, yi); --xi; --yi; _cairo_draw_line (cr, &style->light[state_type], xi, y, x, yi); xi -= 3; yi -= 3; } } break; case GDK_WINDOW_EDGE_NORTH_EAST: { gint xi, yi; xi = x; yi = y + height; while (xi < (x + width - 3)) { _cairo_draw_line (cr, &style->light[state_type], xi, y, x + width, yi); ++xi; --yi; _cairo_draw_line (cr, &style->dark[state_type], xi, y, x + width, yi); ++xi; --yi; _cairo_draw_line (cr, &style->dark[state_type], xi, y, x + width, yi); xi += 3; yi -= 3; } } break; case GDK_WINDOW_EDGE_SOUTH_WEST: { gint xi, yi; xi = x + width; yi = y; while (xi > x + 3) { _cairo_draw_line (cr, &style->dark[state_type], x, yi, xi, y + height); --xi; ++yi; _cairo_draw_line (cr, &style->dark[state_type], x, yi, xi, y + height); --xi; ++yi; _cairo_draw_line (cr, &style->light[state_type], x, yi, xi, y + height); xi -= 3; yi += 3; } } break; case GDK_WINDOW_EDGE_SOUTH_EAST: { gint xi, yi; xi = x; yi = y; while (xi < (x + width - 3)) { _cairo_draw_line (cr, &style->light[state_type], xi, y + height, x + width, yi); ++xi; ++yi; _cairo_draw_line (cr, &style->dark[state_type], xi, y + height, x + width, yi); ++xi; ++yi; _cairo_draw_line (cr, &style->dark[state_type], xi, y + height, x + width, yi); xi += 3; yi += 3; } } break; default: g_assert_not_reached (); break; } } 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. **/ 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. */ 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. */ 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. */ 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. */ 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. */ 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 * @area: (allow-none): clip rectangle, or %NULL if the * output should not be clipped * @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. */ 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. */ 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. */ 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. */ 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. */ 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. */ 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. **/ 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. */ 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. **/ 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. **/ 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. **/ 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. **/ 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. */ 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. */ 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); } /** * gtk_border_new: * * Allocates a new #GtkBorder structure and initializes its elements to zero. * * Returns: a new empty #GtkBorder. The newly allocated #GtkBorder should be * freed with gtk_border_free() * * Since: 2.14 **/ GtkBorder * gtk_border_new (void) { return g_slice_new0 (GtkBorder); } /** * gtk_border_copy: * @border_: a #GtkBorder. * @returns: a copy of @border_. * * Copies a #GtkBorder structure. **/ GtkBorder * gtk_border_copy (const GtkBorder *border) { g_return_val_if_fail (border != NULL, NULL); return g_slice_dup (GtkBorder, border); } /** * gtk_border_free: * @border_: a #GtkBorder. * * Frees a #GtkBorder structure. **/ void gtk_border_free (GtkBorder *border) { g_slice_free (GtkBorder, border); } G_DEFINE_BOXED_TYPE (GtkBorder, gtk_border, gtk_border_copy, gtk_border_free) typedef struct _CursorInfo CursorInfo; struct _CursorInfo { GType for_type; GdkColor primary; GdkColor secondary; }; static void style_unrealize_cursors (GtkStyle *style) { CursorInfo * cursor_info = g_object_get_data (G_OBJECT (style), "gtk-style-cursor-info"); if (cursor_info) { g_free (cursor_info); g_object_set_data (G_OBJECT (style), I_("gtk-style-cursor-info"), NULL); } } 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); } } }