936 lines
28 KiB
C
936 lines
28 KiB
C
/*
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Copyright (C) 2007-2008 Christian Dywan <christian@twotoasts.de>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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See the file COPYING for the full license text.
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*/
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#include "katze-throbber.h"
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#include "katze-utils.h"
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#include <glib/gi18n.h>
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#include <math.h>
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#if !GTK_CHECK_VERSION (2, 18, 0)
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#define gtk_widget_get_allocation(wdgt, alloc) *alloc = wdgt->allocation
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#define gtk_widget_set_has_window(wdgt, wnd) \
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if (wnd) GTK_WIDGET_UNSET_FLAGS (wdgt, GTK_NO_WINDOW); \
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else GTK_WIDGET_SET_FLAGS (wdgt, GTK_NO_WINDOW)
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#endif
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struct _KatzeThrobber
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{
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GtkMisc parent_instance;
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GtkIconSize icon_size;
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gchar* icon_name;
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GdkPixbuf* pixbuf;
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gchar* stock_id;
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gboolean animated;
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gchar* static_icon_name;
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GdkPixbuf* static_pixbuf;
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gchar* static_stock_id;
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gint index;
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gint timer_id;
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gint width;
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gint height;
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};
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G_DEFINE_TYPE (KatzeThrobber, katze_throbber, GTK_TYPE_MISC);
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enum
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{
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PROP_0,
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PROP_ICON_SIZE,
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PROP_ICON_NAME,
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PROP_PIXBUF,
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PROP_ANIMATED,
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PROP_STATIC_ICON_NAME,
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PROP_STATIC_PIXBUF,
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PROP_STATIC_STOCK_ID
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};
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static void
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katze_throbber_dispose (GObject* object);
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static void
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katze_throbber_set_property (GObject* object,
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guint prop_id,
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const GValue* value,
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GParamSpec* pspec);
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static void
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katze_throbber_get_property (GObject* object,
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guint prop_id,
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GValue* value,
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GParamSpec* pspec);
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static void
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katze_throbber_destroy (GtkObject* object);
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static void
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katze_throbber_realize (GtkWidget* widget);
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static void
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katze_throbber_unrealize (GtkWidget* widget);
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static void
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katze_throbber_map (GtkWidget* widget);
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static void
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katze_throbber_unmap (GtkWidget* widget);
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static void
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katze_throbber_style_set (GtkWidget* widget,
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GtkStyle* style);
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static void
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katze_throbber_screen_changed (GtkWidget* widget,
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GdkScreen* screen_prev);
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static void
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katze_throbber_size_request (GtkWidget* widget,
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GtkRequisition* requisition);
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static gboolean
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katze_throbber_expose_event (GtkWidget* widget,
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GdkEventExpose* event);
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static void
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icon_theme_changed (KatzeThrobber* throbber);
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static gboolean
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katze_throbber_timeout (KatzeThrobber* throbber);
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static void
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katze_throbber_timeout_destroy (KatzeThrobber* throbber);
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static void
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katze_throbber_class_init (KatzeThrobberClass* class)
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{
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GObjectClass* gobject_class;
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GtkObjectClass* object_class;
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GtkWidgetClass* widget_class;
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GParamFlags flags = G_PARAM_READWRITE | G_PARAM_CONSTRUCT;
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gobject_class = G_OBJECT_CLASS (class);
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gobject_class->dispose = katze_throbber_dispose;
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gobject_class->set_property = katze_throbber_set_property;
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gobject_class->get_property = katze_throbber_get_property;
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object_class = GTK_OBJECT_CLASS (class);
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object_class->destroy = katze_throbber_destroy;
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widget_class = GTK_WIDGET_CLASS (class);
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widget_class->realize = katze_throbber_realize;
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widget_class->unrealize = katze_throbber_unrealize;
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widget_class->map = katze_throbber_map;
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widget_class->unmap = katze_throbber_unmap;
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widget_class->style_set = katze_throbber_style_set;
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widget_class->screen_changed = katze_throbber_screen_changed;
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widget_class->size_request = katze_throbber_size_request;
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widget_class->expose_event = katze_throbber_expose_event;
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g_object_class_install_property (gobject_class,
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PROP_ICON_SIZE,
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g_param_spec_int (
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"icon-size",
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"Icon size",
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"Symbolic size to use for the animation",
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0, G_MAXINT, GTK_ICON_SIZE_MENU,
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flags));
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g_object_class_install_property (gobject_class,
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PROP_ICON_NAME,
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g_param_spec_string (
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"icon-name",
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"Icon Name",
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"The name of an icon containing animation frames",
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"process-working",
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flags));
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g_object_class_install_property (gobject_class,
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PROP_PIXBUF,
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g_param_spec_object (
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"pixbuf",
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"Pixbuf",
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"A GdkPixbuf containing animation frames",
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GDK_TYPE_PIXBUF,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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PROP_ANIMATED,
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g_param_spec_boolean (
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"animated",
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"Animated",
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"Whether the throbber should be animated",
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FALSE,
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flags));
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g_object_class_install_property (gobject_class,
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PROP_STATIC_ICON_NAME,
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g_param_spec_string (
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"static-icon-name",
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"Static Icon Name",
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"The name of an icon to be used as the static image",
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NULL,
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flags));
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g_object_class_install_property (gobject_class,
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PROP_PIXBUF,
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g_param_spec_object (
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"static-pixbuf",
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"Static Pixbuf",
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"A GdkPixbuf to be used as the static image",
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GDK_TYPE_PIXBUF,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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PROP_STATIC_STOCK_ID,
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g_param_spec_string (
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"static-stock-id",
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"Static Stock ID",
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"The stock ID of an icon to be used as the static image",
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NULL,
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flags));
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}
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static void
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katze_throbber_init (KatzeThrobber *throbber)
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{
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gtk_widget_set_has_window (GTK_WIDGET (throbber), FALSE);
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throbber->timer_id = -1;
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}
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static void
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katze_throbber_dispose (GObject* object)
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{
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KatzeThrobber* throbber = KATZE_THROBBER (object);
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if (G_UNLIKELY (throbber->timer_id >= 0))
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g_source_remove (throbber->timer_id);
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(*G_OBJECT_CLASS (katze_throbber_parent_class)->dispose) (object);
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}
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static void
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katze_throbber_destroy (GtkObject* object)
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{
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KatzeThrobber* throbber = KATZE_THROBBER (object);
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katze_assign (throbber->icon_name, NULL);
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katze_object_assign (throbber->pixbuf, NULL);
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katze_assign (throbber->static_icon_name, NULL);
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katze_object_assign (throbber->static_pixbuf, NULL);
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katze_assign (throbber->static_stock_id, NULL);
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GTK_OBJECT_CLASS (katze_throbber_parent_class)->destroy (object);
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}
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static void
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katze_throbber_set_property (GObject* object,
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guint prop_id,
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const GValue* value,
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GParamSpec* pspec)
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{
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KatzeThrobber* throbber = KATZE_THROBBER (object);
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switch (prop_id)
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{
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case PROP_ICON_SIZE:
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katze_throbber_set_icon_size (throbber, g_value_get_int (value));
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break;
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case PROP_ICON_NAME:
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katze_throbber_set_icon_name (throbber, g_value_get_string (value));
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break;
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case PROP_PIXBUF:
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katze_throbber_set_pixbuf (throbber, g_value_get_object (value));
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break;
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case PROP_ANIMATED:
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katze_throbber_set_animated (throbber, g_value_get_boolean (value));
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break;
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case PROP_STATIC_ICON_NAME:
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katze_throbber_set_static_icon_name (throbber, g_value_get_string (value));
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break;
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case PROP_STATIC_PIXBUF:
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katze_throbber_set_static_pixbuf (throbber, g_value_get_object (value));
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break;
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case PROP_STATIC_STOCK_ID:
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katze_throbber_set_static_stock_id (throbber, g_value_get_string (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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katze_throbber_get_property (GObject* object,
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guint prop_id,
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GValue* value,
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GParamSpec* pspec)
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{
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KatzeThrobber* throbber = KATZE_THROBBER (object);
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switch (prop_id)
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{
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case PROP_ICON_SIZE:
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g_value_set_int (value, katze_throbber_get_icon_size (throbber));
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break;
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case PROP_ICON_NAME:
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g_value_set_string (value, katze_throbber_get_icon_name (throbber));
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break;
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case PROP_PIXBUF:
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g_value_set_object (value, katze_throbber_get_pixbuf (throbber));
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break;
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case PROP_ANIMATED:
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g_value_set_boolean (value, katze_throbber_get_animated (throbber));
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break;
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case PROP_STATIC_ICON_NAME:
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g_value_set_string (value, katze_throbber_get_static_icon_name (throbber));
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break;
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case PROP_STATIC_PIXBUF:
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g_value_set_object (value, katze_throbber_get_static_pixbuf (throbber));
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break;
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case PROP_STATIC_STOCK_ID:
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g_value_set_string (value, katze_throbber_get_static_stock_id (throbber));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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/**
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* katze_throbber_new:
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*
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* Creates a new throbber widget.
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*
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* Return value: a new #KatzeThrobber
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**/
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GtkWidget*
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katze_throbber_new (void)
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{
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KatzeThrobber* throbber = g_object_new (KATZE_TYPE_THROBBER,
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NULL);
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return GTK_WIDGET (throbber);
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}
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/**
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* katze_throbber_set_icon_size:
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* @throbber: a #KatzeThrobber
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* @icon_size: the new icon size
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*
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* Sets the desired size of the throbber image. The animation and static image
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* will be displayed in this size. If a pixbuf is used for the animation every
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* single frame is assumed to have this size.
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**/
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void
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katze_throbber_set_icon_size (KatzeThrobber* throbber,
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GtkIconSize icon_size)
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{
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GtkSettings* gtk_settings;
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g_return_if_fail (KATZE_IS_THROBBER (throbber));
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gtk_settings = gtk_widget_get_settings (GTK_WIDGET (throbber));
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g_return_if_fail (gtk_icon_size_lookup_for_settings (gtk_settings,
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icon_size,
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&throbber->width,
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&throbber->height));
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throbber->icon_size = icon_size;
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g_object_notify (G_OBJECT (throbber), "icon-size");
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gtk_widget_queue_draw (GTK_WIDGET (throbber));
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}
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/**
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* katze_throbber_set_icon_name:
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* @throbber: a #KatzeThrobber
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* @icon_name: an icon name or %NULL
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*
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* Sets the name of an icon that should provide the animation frames.
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*
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* The pixbuf is automatically invalidated.
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**/
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void
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katze_throbber_set_icon_name (KatzeThrobber* throbber,
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const gchar* icon_name)
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{
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g_return_if_fail (KATZE_IS_THROBBER (throbber));
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katze_assign (throbber->icon_name, g_strdup (icon_name));
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if (icon_name)
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icon_theme_changed (throbber);
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g_object_notify (G_OBJECT (throbber), "icon-name");
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}
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/**
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* katze_throbber_set_pixbuf:
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* @throbber: a #KatzeThrobber
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* @pixbuf: a #GdkPixbuf or %NULL
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*
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* Sets the pixbuf that should provide the animation frames. Every frame
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* is assumed to have the icon size of the throbber, which can be specified
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* with katze_throbber_set_icon_size ().
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*
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* The icon name is automatically invalidated.
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**/
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void
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katze_throbber_set_pixbuf (KatzeThrobber* throbber,
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GdkPixbuf* pixbuf)
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{
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g_return_if_fail (KATZE_IS_THROBBER (throbber));
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g_return_if_fail (!pixbuf || GDK_IS_PIXBUF (pixbuf));
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katze_object_assign (throbber->pixbuf, pixbuf);
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g_object_freeze_notify (G_OBJECT (throbber));
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if (pixbuf)
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{
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g_object_ref (pixbuf);
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katze_assign (throbber->icon_name, NULL);
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g_object_notify (G_OBJECT (throbber), "icon-name");
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}
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gtk_widget_queue_draw (GTK_WIDGET (throbber));
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g_object_notify (G_OBJECT (throbber), "pixbuf");
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g_object_thaw_notify (G_OBJECT (throbber));
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}
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/**
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* katze_throbber_set_animated:
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* @throbber: a #KatzeThrobber
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* @animated: %TRUE to animate the throbber
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*
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* Sets the animation state of the throbber.
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**/
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void
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katze_throbber_set_animated (KatzeThrobber* throbber,
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gboolean animated)
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{
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g_return_if_fail (KATZE_IS_THROBBER (throbber));
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if (G_UNLIKELY (throbber->animated == animated))
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return;
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throbber->animated = animated;
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if (animated && (throbber->timer_id < 0))
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throbber->timer_id = g_timeout_add_full (
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G_PRIORITY_LOW, 50,
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(GSourceFunc)katze_throbber_timeout,
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throbber,
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(GDestroyNotify)katze_throbber_timeout_destroy);
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gtk_widget_queue_draw (GTK_WIDGET (throbber));
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g_object_notify (G_OBJECT (throbber), "animated");
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}
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/**
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* katze_throbber_set_static_icon_name:
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* @throbber: a #KatzeThrobber
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* @icon_name: an icon name or %NULL
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*
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* Sets the name of an icon that should provide the static image.
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*
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* The static pixbuf and stock ID are automatically invalidated.
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**/
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void
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katze_throbber_set_static_icon_name (KatzeThrobber* throbber,
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const gchar* icon_name)
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{
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g_return_if_fail (KATZE_IS_THROBBER (throbber));
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katze_assign (throbber->static_icon_name, g_strdup (icon_name));
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g_object_freeze_notify (G_OBJECT (throbber));
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if (icon_name)
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{
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katze_assign (throbber->static_stock_id, NULL);
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icon_theme_changed (throbber);
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g_object_notify (G_OBJECT (throbber), "static-pixbuf");
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g_object_notify (G_OBJECT (throbber), "static-stock-id");
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}
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g_object_notify (G_OBJECT (throbber), "static-icon-name");
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g_object_thaw_notify (G_OBJECT (throbber));
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}
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/**
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* katze_throbber_set_static_pixbuf:
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* @throbber: a #KatzeThrobber
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* @pixbuf: a #GdkPixbuf or %NULL
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*
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* Sets the pixbuf that should provide the static image. The pixbuf is
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* assumed to have the icon size of the throbber, which can be specified
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* with katze_throbber_set_icon_size ().
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*
|
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* The static icon name and stock ID are automatically invalidated.
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**/
|
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void
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katze_throbber_set_static_pixbuf (KatzeThrobber* throbber,
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GdkPixbuf* pixbuf)
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{
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g_return_if_fail (KATZE_IS_THROBBER (throbber));
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g_return_if_fail (pixbuf == NULL || GDK_IS_PIXBUF (pixbuf));
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katze_object_assign (throbber->static_pixbuf, pixbuf);
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g_object_freeze_notify (G_OBJECT (throbber));
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if (pixbuf)
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{
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g_object_ref (pixbuf);
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katze_assign (throbber->static_icon_name, NULL);
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katze_assign (throbber->static_stock_id, NULL);
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gtk_widget_queue_draw (GTK_WIDGET (throbber));
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|
|
g_object_notify (G_OBJECT (throbber), "static-icon-name");
|
|
g_object_notify (G_OBJECT (throbber), "static-stock-id");
|
|
}
|
|
|
|
g_object_notify (G_OBJECT (throbber), "static-pixbuf");
|
|
g_object_thaw_notify (G_OBJECT (throbber));
|
|
}
|
|
|
|
/**
|
|
* katze_throbber_set_static_stock_id:
|
|
* @throbber: a #KatzeThrobber
|
|
* @stock_id: a stock ID or %NULL
|
|
*
|
|
* Sets the stock ID of an icon that should provide the static image.
|
|
*
|
|
* The static icon name and pixbuf are automatically invalidated.
|
|
**/
|
|
void
|
|
katze_throbber_set_static_stock_id (KatzeThrobber* throbber,
|
|
const gchar* stock_id)
|
|
{
|
|
g_return_if_fail (KATZE_IS_THROBBER (throbber));
|
|
|
|
g_object_freeze_notify (G_OBJECT (throbber));
|
|
|
|
if (stock_id)
|
|
{
|
|
GtkStockItem stock_item;
|
|
g_return_if_fail (gtk_stock_lookup (stock_id, &stock_item));
|
|
|
|
g_object_notify (G_OBJECT (throbber), "static-icon-name");
|
|
g_object_notify (G_OBJECT (throbber), "static-pixbuf");
|
|
}
|
|
|
|
katze_assign (throbber->static_stock_id, g_strdup (stock_id));
|
|
|
|
if (stock_id)
|
|
icon_theme_changed (throbber);
|
|
|
|
g_object_notify (G_OBJECT (throbber), "static-stock-id");
|
|
g_object_thaw_notify (G_OBJECT (throbber));
|
|
}
|
|
|
|
/**
|
|
* katze_throbber_get_icon_size:
|
|
* @throbber: a #KatzeThrobber
|
|
*
|
|
* Retrieves the size of the throbber.
|
|
*
|
|
* Return value: the size of the throbber
|
|
**/
|
|
GtkIconSize
|
|
katze_throbber_get_icon_size (KatzeThrobber* throbber)
|
|
{
|
|
g_return_val_if_fail (KATZE_IS_THROBBER (throbber), GTK_ICON_SIZE_INVALID);
|
|
|
|
return throbber->icon_size;
|
|
}
|
|
|
|
/**
|
|
* katze_throbber_get_icon_name:
|
|
* @throbber: a #KatzeThrobber
|
|
*
|
|
* Retrieves the name of the icon providing the animation frames.
|
|
*
|
|
* Return value: the name of the icon providing the animation frames, or %NULL
|
|
**/
|
|
const gchar*
|
|
katze_throbber_get_icon_name (KatzeThrobber* throbber)
|
|
{
|
|
g_return_val_if_fail (KATZE_IS_THROBBER (throbber), NULL);
|
|
|
|
return throbber->icon_name;
|
|
}
|
|
|
|
/**
|
|
* katze_throbber_get_pixbuf:
|
|
* @throbber: a #KatzeThrobber
|
|
*
|
|
* Retrieves the #GdkPixbuf providing the animation frames if an icon name
|
|
* or pixbuf is available. The caller of this function does not own a
|
|
* reference to the returned pixbuf.
|
|
*
|
|
* Return value: the pixbuf providing the animation frames, or %NULL
|
|
**/
|
|
GdkPixbuf*
|
|
katze_throbber_get_pixbuf (KatzeThrobber* throbber)
|
|
{
|
|
g_return_val_if_fail (KATZE_IS_THROBBER (throbber), NULL);
|
|
|
|
return throbber->pixbuf;
|
|
}
|
|
|
|
/**
|
|
* katze_throbber_get_animated:
|
|
* @throbber: a #KatzeThrobber
|
|
*
|
|
* Retrieves the status of the animation, whcih can be animated or static.
|
|
*
|
|
* Return value: %TRUE if the throbber is animated
|
|
**/
|
|
gboolean
|
|
katze_throbber_get_animated (KatzeThrobber* throbber)
|
|
{
|
|
g_return_val_if_fail (KATZE_IS_THROBBER (throbber), FALSE);
|
|
|
|
return throbber->animated;
|
|
}
|
|
|
|
/**
|
|
* katze_throbber_get_static_icon_name:
|
|
* @throbber: a #KatzeThrobber
|
|
*
|
|
* Retrieves the name of the icon providing the static image, if an icon name
|
|
* for the static image was specified.
|
|
*
|
|
* Return value: the name of the icon providing the static image, or %NULL
|
|
**/
|
|
const gchar*
|
|
katze_throbber_get_static_icon_name (KatzeThrobber* throbber)
|
|
{
|
|
g_return_val_if_fail (KATZE_IS_THROBBER (throbber), NULL);
|
|
|
|
return throbber->static_icon_name;
|
|
}
|
|
|
|
/**
|
|
* katze_throbber_get_static pixbuf:
|
|
* @throbber: a #KatzeThrobber
|
|
*
|
|
* Retrieves the #GdkPixbuf providing the static image, if an icon name, a
|
|
* pixbuf or a stock ID for the static image was specified. The caller of this
|
|
* function does not own a reference to the returned pixbuf.
|
|
*
|
|
* Return value: the pixbuf providing the static image, or %NULL
|
|
**/
|
|
GdkPixbuf*
|
|
katze_throbber_get_static_pixbuf (KatzeThrobber* throbber)
|
|
{
|
|
g_return_val_if_fail (KATZE_IS_THROBBER (throbber), NULL);
|
|
|
|
return throbber->static_pixbuf;
|
|
}
|
|
|
|
/**
|
|
* katze_throbber_get_static_stock_id:
|
|
* @throbber: a #KatzeThrobber
|
|
*
|
|
* Retrieves the stock ID of the icon providing the static image, if a
|
|
* stock ID for the static image was specified.
|
|
*
|
|
* Return value: the stock ID of the icon providing the static image, or %NULL
|
|
**/
|
|
const gchar*
|
|
katze_throbber_get_static_stock_id (KatzeThrobber* throbber)
|
|
{
|
|
g_return_val_if_fail (KATZE_IS_THROBBER (throbber), NULL);
|
|
|
|
return throbber->static_stock_id;
|
|
}
|
|
|
|
static void
|
|
katze_throbber_realize (GtkWidget* widget)
|
|
{
|
|
(*GTK_WIDGET_CLASS (katze_throbber_parent_class)->realize) (widget);
|
|
|
|
icon_theme_changed (KATZE_THROBBER (widget));
|
|
}
|
|
|
|
static void
|
|
katze_throbber_unrealize (GtkWidget* widget)
|
|
{
|
|
if (GTK_WIDGET_CLASS (katze_throbber_parent_class)->unrealize)
|
|
GTK_WIDGET_CLASS (katze_throbber_parent_class)->unrealize (widget);
|
|
}
|
|
|
|
static void
|
|
pixbuf_assign_icon (GdkPixbuf** pixbuf,
|
|
const gchar* icon_name,
|
|
KatzeThrobber* throbber)
|
|
{
|
|
GdkScreen* screen;
|
|
GtkIconTheme* icon_theme;
|
|
|
|
if (*pixbuf)
|
|
g_object_unref (*pixbuf);
|
|
|
|
screen = gtk_widget_get_screen (GTK_WIDGET (throbber));
|
|
icon_theme = gtk_icon_theme_get_for_screen (screen);
|
|
*pixbuf = gtk_icon_theme_load_icon (icon_theme,
|
|
icon_name,
|
|
MAX (throbber->width, throbber->height),
|
|
(GtkIconLookupFlags) 0,
|
|
NULL);
|
|
}
|
|
|
|
static void
|
|
icon_theme_changed (KatzeThrobber* throbber)
|
|
{
|
|
if (throbber->icon_name)
|
|
pixbuf_assign_icon (&throbber->pixbuf,
|
|
throbber->icon_name, throbber);
|
|
|
|
if (throbber->static_icon_name)
|
|
pixbuf_assign_icon (&throbber->static_pixbuf,
|
|
throbber->static_icon_name, throbber);
|
|
else if (throbber->static_stock_id)
|
|
katze_object_assign (throbber->static_pixbuf,
|
|
gtk_widget_render_icon (GTK_WIDGET (throbber),
|
|
throbber->static_stock_id,
|
|
throbber->icon_size,
|
|
NULL));
|
|
|
|
g_object_freeze_notify (G_OBJECT (throbber));
|
|
g_object_notify (G_OBJECT (throbber), "pixbuf");
|
|
g_object_notify (G_OBJECT (throbber), "static-pixbuf");
|
|
g_object_thaw_notify (G_OBJECT (throbber));
|
|
|
|
gtk_widget_queue_draw (GTK_WIDGET (throbber));
|
|
}
|
|
|
|
static void
|
|
katze_throbber_map (GtkWidget* widget)
|
|
{
|
|
(*GTK_WIDGET_CLASS (katze_throbber_parent_class)->map) (widget);
|
|
}
|
|
|
|
static void
|
|
katze_throbber_unmap (GtkWidget* widget)
|
|
{
|
|
if (GTK_WIDGET_CLASS (katze_throbber_parent_class)->unmap)
|
|
GTK_WIDGET_CLASS (katze_throbber_parent_class)->unmap (widget);
|
|
}
|
|
|
|
static gboolean
|
|
katze_throbber_timeout (KatzeThrobber* throbber)
|
|
{
|
|
throbber->index++;
|
|
gtk_widget_queue_draw (GTK_WIDGET (throbber));
|
|
|
|
return throbber->animated;
|
|
}
|
|
|
|
static void
|
|
katze_throbber_timeout_destroy (KatzeThrobber* throbber)
|
|
{
|
|
throbber->index = 0;
|
|
throbber->timer_id = -1;
|
|
}
|
|
|
|
static void
|
|
katze_throbber_style_set (GtkWidget* widget,
|
|
GtkStyle* prev_style)
|
|
{
|
|
if (GTK_WIDGET_CLASS (katze_throbber_parent_class)->style_set)
|
|
GTK_WIDGET_CLASS (katze_throbber_parent_class)->style_set (widget,
|
|
prev_style);
|
|
|
|
icon_theme_changed (KATZE_THROBBER (widget));
|
|
}
|
|
|
|
static void
|
|
katze_throbber_screen_changed (GtkWidget* widget,
|
|
GdkScreen* prev_screen)
|
|
{
|
|
if (GTK_WIDGET_CLASS (katze_throbber_parent_class)->screen_changed)
|
|
GTK_WIDGET_CLASS (katze_throbber_parent_class)->screen_changed (
|
|
widget,
|
|
prev_screen);
|
|
|
|
icon_theme_changed (KATZE_THROBBER (widget));
|
|
}
|
|
|
|
static void
|
|
katze_throbber_size_request (GtkWidget* widget,
|
|
GtkRequisition* requisition)
|
|
{
|
|
KatzeThrobber* throbber = KATZE_THROBBER (widget);
|
|
|
|
requisition->width = throbber->width;
|
|
requisition->height = throbber->height;
|
|
|
|
GTK_WIDGET_CLASS (katze_throbber_parent_class)->size_request (widget,
|
|
requisition);
|
|
}
|
|
|
|
static void
|
|
katze_throbber_aligned_coords (GtkWidget* widget,
|
|
gint* ax,
|
|
gint* ay)
|
|
{
|
|
gfloat xalign, yalign;
|
|
gint xpad, ypad;
|
|
GtkAllocation allocation;
|
|
GtkRequisition requisition;
|
|
|
|
gtk_misc_get_alignment (GTK_MISC (widget), &xalign, &yalign);
|
|
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
|
|
xalign = 1.0f - xalign;
|
|
gtk_misc_get_padding (GTK_MISC (widget), &xpad, &ypad);
|
|
|
|
gtk_widget_get_allocation (widget, &allocation);
|
|
gtk_widget_size_request (widget, &requisition);
|
|
*ax = floor (allocation.x + xpad
|
|
+ ((allocation.width - requisition.width) * xalign));
|
|
*ay = floor (allocation.y + ypad
|
|
+ ((allocation.height - requisition.height) * yalign));
|
|
}
|
|
|
|
static gboolean
|
|
katze_throbber_expose_event (GtkWidget* widget,
|
|
GdkEventExpose* event)
|
|
{
|
|
gint ax, ay;
|
|
KatzeThrobber* throbber = KATZE_THROBBER (widget);
|
|
|
|
if (G_UNLIKELY (!throbber->width || !throbber->height))
|
|
return TRUE;
|
|
|
|
if (G_UNLIKELY (!throbber->pixbuf && !throbber->static_pixbuf))
|
|
if (throbber->animated && !throbber->pixbuf && !throbber->icon_name)
|
|
return TRUE;
|
|
|
|
if (!throbber->animated && (throbber->static_pixbuf
|
|
|| throbber->static_icon_name || throbber->static_stock_id))
|
|
{
|
|
if (G_UNLIKELY (!throbber->static_pixbuf && throbber->static_icon_name))
|
|
{
|
|
icon_theme_changed (KATZE_THROBBER (widget));
|
|
|
|
if (!throbber->static_pixbuf)
|
|
{
|
|
g_warning (_("Named icon '%s' couldn't be loaded"),
|
|
throbber->static_icon_name);
|
|
katze_assign (throbber->static_icon_name, NULL);
|
|
g_object_notify (G_OBJECT (throbber), "static-icon-name");
|
|
return TRUE;
|
|
}
|
|
}
|
|
else if (G_UNLIKELY (!throbber->static_pixbuf && throbber->static_stock_id))
|
|
{
|
|
icon_theme_changed (KATZE_THROBBER (widget));
|
|
|
|
if (!throbber->static_pixbuf)
|
|
{
|
|
g_warning (_("Stock icon '%s' couldn't be loaded"),
|
|
throbber->static_stock_id);
|
|
katze_assign (throbber->static_stock_id, NULL);
|
|
g_object_notify (G_OBJECT (throbber), "static-stock-id");
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
katze_throbber_aligned_coords (widget, &ax, &ay);
|
|
|
|
gdk_draw_pixbuf (event->window, NULL, throbber->static_pixbuf,
|
|
0, 0, ax, ay,
|
|
throbber->width, throbber->height,
|
|
GDK_RGB_DITHER_NONE, 0, 0);
|
|
}
|
|
else
|
|
{
|
|
gint cols, rows;
|
|
|
|
if (G_UNLIKELY (throbber->icon_name && !throbber->pixbuf))
|
|
{
|
|
icon_theme_changed (KATZE_THROBBER (widget));
|
|
|
|
if (!throbber->pixbuf)
|
|
{
|
|
/* Fallback to a stock icon */
|
|
katze_assign (throbber->icon_name, g_strdup (GTK_STOCK_EXECUTE));
|
|
g_object_notify (G_OBJECT (throbber), "icon-name");
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
cols = gdk_pixbuf_get_width (throbber->pixbuf) / throbber->width;
|
|
rows = gdk_pixbuf_get_height (throbber->pixbuf) / throbber->height;
|
|
|
|
if (G_UNLIKELY (cols == 1 && cols == rows))
|
|
{
|
|
katze_throbber_aligned_coords (widget, &ax, &ay);
|
|
|
|
if (throbber->animated)
|
|
gdk_draw_pixbuf (event->window, NULL, throbber->pixbuf,
|
|
0, 0, ax, ay,
|
|
throbber->width, throbber->height,
|
|
GDK_RGB_DITHER_NONE, 0, 0);
|
|
return TRUE;
|
|
}
|
|
|
|
if (G_LIKELY (cols > 0 && rows > 0))
|
|
{
|
|
gint idx;
|
|
guint x, y;
|
|
|
|
katze_throbber_aligned_coords (widget, &ax, &ay);
|
|
|
|
idx = throbber->index % (cols * rows);
|
|
if (G_LIKELY (throbber->timer_id >= 0))
|
|
idx = MAX (idx, 1);
|
|
|
|
x = (idx % cols) * throbber->width;
|
|
y = (idx / cols) * throbber->height;
|
|
|
|
gdk_draw_pixbuf (event->window, NULL, throbber->pixbuf,
|
|
x, y, ax, ay,
|
|
throbber->width, throbber->height,
|
|
GDK_RGB_DITHER_NONE, 0, 0);
|
|
}
|
|
else
|
|
{
|
|
g_warning (_("Animation frames are broken"));
|
|
katze_assign (throbber->icon_name, NULL);
|
|
katze_object_assign (throbber->pixbuf, NULL);
|
|
|
|
g_object_freeze_notify (G_OBJECT (throbber));
|
|
g_object_notify (G_OBJECT (throbber), "icon-name");
|
|
g_object_notify (G_OBJECT (throbber), "pixbuf");
|
|
g_object_thaw_notify (G_OBJECT (throbber));
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|