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Diffstat (limited to 'shell/ev-loading-message.c')
| -rw-r--r-- | shell/ev-loading-message.c | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/shell/ev-loading-message.c b/shell/ev-loading-message.c new file mode 100644 index 00000000..b09d3479 --- /dev/null +++ b/shell/ev-loading-message.c @@ -0,0 +1,180 @@ +/* ev-loading-message.c + * this file is part of atril, a mate document viewer + * + * Copyright (C) 2010, 2012 Carlos Garcia Campos <[email protected]> + * + * Atril is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Atril 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "config.h" +#include "ev-loading-message.h" + +#include <string.h> +#include <glib/gi18n.h> + +struct _EvLoadingMessage { + GtkBox base_instance; + + GtkWidget *spinner; +}; + +struct _EvLoadingMessageClass { + GtkBoxClass base_class; +}; + +G_DEFINE_TYPE (EvLoadingMessage, ev_loading_message, GTK_TYPE_BOX) + +static void +ev_loading_message_init (EvLoadingMessage *message) +{ + GtkWidget *widget = GTK_WIDGET (message); + GtkWidget *label; + GtkStyleContext *context; + + gtk_container_set_border_width (GTK_CONTAINER (message), 10); + + message->spinner = gtk_spinner_new (); + gtk_box_pack_start (GTK_BOX (message), message->spinner, FALSE, FALSE, 0); + gtk_widget_show (message->spinner); + + label = gtk_label_new (_("Loading…")); + gtk_box_pack_start (GTK_BOX (message), label, FALSE, FALSE, 0); + gtk_widget_show (label); +} + +static void +get_widget_padding (GtkWidget *widget, + GtkBorder *padding) +{ + GtkStyleContext *context; + GtkStateFlags state; + + context = gtk_widget_get_style_context (widget); + state = gtk_style_context_get_state (context); + gtk_style_context_get_padding (context, state, padding); +} + +static void +ev_loading_message_size_allocate (GtkWidget *widget, + GtkAllocation *allocation) +{ + EvLoadingMessage *message = EV_LOADING_MESSAGE (widget); + GtkAllocation child_allocation; + GtkBorder padding; + + get_widget_padding (widget, &padding); + child_allocation.y = allocation->x + padding.left; + child_allocation.x = allocation->y + padding.top; + child_allocation.width = MAX (1, allocation->width - (padding.left + padding.right)); + child_allocation.height = MAX (1, allocation->height - (padding.top + padding.bottom)); + + GTK_WIDGET_CLASS (ev_loading_message_parent_class)->size_allocate (widget, &child_allocation); + gtk_widget_set_allocation (widget, allocation); +} + +static void +ev_loading_message_get_preferred_width (GtkWidget *widget, + gint *minimum_size, + gint *natural_size) +{ + GtkBorder padding; + + GTK_WIDGET_CLASS (ev_loading_message_parent_class)->get_preferred_width (widget, minimum_size, natural_size); + + get_widget_padding (widget, &padding); + *minimum_size += padding.left + padding.right; + *natural_size += padding.left + padding.right; +} + +static void +ev_loading_message_get_preferred_height (GtkWidget *widget, + gint *minimum_size, + gint *natural_size) +{ + GtkBorder padding; + + GTK_WIDGET_CLASS (ev_loading_message_parent_class)->get_preferred_height (widget, minimum_size, natural_size); + + get_widget_padding (widget, &padding); + *minimum_size += padding.top + padding.bottom; + *natural_size += padding.top + padding.bottom; +} + +static gboolean +ev_loading_message_draw (GtkWidget *widget, + cairo_t *cr) +{ + GtkStyleContext *context; + gint width, height; + + context = gtk_widget_get_style_context (widget); + width = gtk_widget_get_allocated_width (widget); + height = gtk_widget_get_allocated_height (widget); + + gtk_render_background (context, cr, 0, 0, width, height); + gtk_render_frame (context, cr, 0, 0, width, height); + + GTK_WIDGET_CLASS (ev_loading_message_parent_class)->draw (widget, cr); + + return TRUE; +} + +static void +ev_loading_message_hide (GtkWidget *widget) +{ + EvLoadingMessage *message = EV_LOADING_MESSAGE (widget); + + gtk_spinner_stop (GTK_SPINNER (message->spinner)); + + GTK_WIDGET_CLASS (ev_loading_message_parent_class)->hide (widget); +} + +static void +ev_loading_message_show (GtkWidget *widget) +{ + EvLoadingMessage *message = EV_LOADING_MESSAGE (widget); + + gtk_spinner_start (GTK_SPINNER (message->spinner)); + + GTK_WIDGET_CLASS (ev_loading_message_parent_class)->show (widget); +} + +static void +ev_loading_message_class_init (EvLoadingMessageClass *klass) +{ + GtkWidgetClass *gtk_widget_class = GTK_WIDGET_CLASS (klass); + + gtk_widget_class->size_allocate = ev_loading_message_size_allocate; + gtk_widget_class->get_preferred_width = ev_loading_message_get_preferred_width; + gtk_widget_class->get_preferred_height = ev_loading_message_get_preferred_height; + gtk_widget_class->draw = ev_loading_message_draw; + gtk_widget_class->show = ev_loading_message_show; + gtk_widget_class->hide = ev_loading_message_hide; +} + +/* Public methods */ +GtkWidget * +ev_loading_message_new (void) +{ + GtkWidget *message; + + message = g_object_new (EV_TYPE_LOADING_MESSAGE, + "orientation", GTK_ORIENTATION_HORIZONTAL, + "spacing", 12, + NULL); + return message; +} + + |