/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* Metacity theme preview widget */
/*
* Copyright (C) 2002 Havoc Pennington
*
* This program 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.
*
* This program 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., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include "preview-widget.h"
static void meta_preview_class_init (MetaPreviewClass *klass);
static void meta_preview_init (MetaPreview *preview);
static void meta_preview_size_request (GtkWidget *widget,
GtkRequisition *req);
static void meta_preview_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gboolean meta_preview_expose (GtkWidget *widget,
GdkEventExpose *event);
static void meta_preview_finalize (GObject *object);
static GtkWidgetClass *parent_class;
GtkType
meta_preview_get_type (void)
{
static GtkType preview_type = 0;
if (!preview_type)
{
static const GtkTypeInfo preview_info =
{
"MetaPreview",
sizeof (MetaPreview),
sizeof (MetaPreviewClass),
(GtkClassInitFunc) meta_preview_class_init,
(GtkObjectInitFunc) meta_preview_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
preview_type = gtk_type_unique (GTK_TYPE_BIN, &preview_info);
}
return preview_type;
}
static void
meta_preview_class_init (MetaPreviewClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
GtkWidgetClass *widget_class;
widget_class = (GtkWidgetClass*) class;
parent_class = gtk_type_class (GTK_TYPE_BIN);
gobject_class->finalize = meta_preview_finalize;
widget_class->expose_event = meta_preview_expose;
widget_class->size_request = meta_preview_size_request;
widget_class->size_allocate = meta_preview_size_allocate;
}
static void
meta_preview_init (MetaPreview *preview)
{
int i;
GTK_WIDGET_SET_FLAGS (preview, GTK_NO_WINDOW);
i = 0;
while (i < MAX_BUTTONS_PER_CORNER)
{
preview->button_layout.left_buttons[i] = META_BUTTON_FUNCTION_LAST;
preview->button_layout.right_buttons[i] = META_BUTTON_FUNCTION_LAST;
++i;
}
preview->button_layout.left_buttons[0] = META_BUTTON_FUNCTION_MENU;
preview->button_layout.right_buttons[0] = META_BUTTON_FUNCTION_MINIMIZE;
preview->button_layout.right_buttons[1] = META_BUTTON_FUNCTION_MAXIMIZE;
preview->button_layout.right_buttons[2] = META_BUTTON_FUNCTION_CLOSE;
preview->type = META_FRAME_TYPE_NORMAL;
preview->flags =
META_FRAME_ALLOWS_DELETE |
META_FRAME_ALLOWS_MENU |
META_FRAME_ALLOWS_MINIMIZE |
META_FRAME_ALLOWS_MAXIMIZE |
META_FRAME_ALLOWS_VERTICAL_RESIZE |
META_FRAME_ALLOWS_HORIZONTAL_RESIZE |
META_FRAME_HAS_FOCUS |
META_FRAME_ALLOWS_SHADE |
META_FRAME_ALLOWS_MOVE;
preview->left_width = -1;
preview->right_width = -1;
preview->top_height = -1;
preview->bottom_height = -1;
}
GtkWidget*
meta_preview_new (void)
{
MetaPreview *preview;
preview = gtk_type_new (META_TYPE_PREVIEW);
return GTK_WIDGET (preview);
}
static void
meta_preview_finalize (GObject *object)
{
MetaPreview *preview;
preview = META_PREVIEW (object);
g_free (preview->title);
preview->title = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
ensure_info (MetaPreview *preview)
{
GtkWidget *widget;
widget = GTK_WIDGET (preview);
if (preview->layout == NULL)
{
PangoFontDescription *font_desc;
double scale;
PangoAttrList *attrs;
PangoAttribute *attr;
if (preview->theme)
scale = meta_theme_get_title_scale (preview->theme,
preview->type,
preview->flags);
else
scale = 1.0;
preview->layout = gtk_widget_create_pango_layout (widget,
preview->title);
font_desc = meta_gtk_widget_get_font_desc (widget, scale, NULL);
preview->text_height =
meta_pango_font_desc_get_text_height (font_desc,
gtk_widget_get_pango_context (widget));
attrs = pango_attr_list_new ();
attr = pango_attr_size_new (pango_font_description_get_size (font_desc));
attr->start_index = 0;
attr->end_index = G_MAXINT;
pango_attr_list_insert (attrs, attr);
pango_layout_set_attributes (preview->layout, attrs);
pango_attr_list_unref (attrs);
pango_font_description_free (font_desc);
}
if (preview->top_height < 0)
{
if (preview->theme)
{
meta_theme_get_frame_borders (preview->theme,
preview->type,
preview->text_height,
preview->flags,
&preview->top_height,
&preview->bottom_height,
&preview->left_width,
&preview->right_width);
}
else
{
preview->top_height = 0;
preview->bottom_height = 0;
preview->left_width = 0;
preview->right_width = 0;
}
}
}
static gboolean
meta_preview_expose (GtkWidget *widget,
GdkEventExpose *event)
{
MetaPreview *preview;
int border_width;
int client_width;
int client_height;
MetaButtonState button_states[META_BUTTON_TYPE_LAST] =
{
META_BUTTON_STATE_NORMAL,
META_BUTTON_STATE_NORMAL,
META_BUTTON_STATE_NORMAL,
META_BUTTON_STATE_NORMAL
};
g_return_val_if_fail (META_IS_PREVIEW (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
preview = META_PREVIEW (widget);
ensure_info (preview);
border_width = GTK_CONTAINER (widget)->border_width;
client_width = widget->allocation.width - preview->left_width - preview->right_width - border_width * 2;
client_height = widget->allocation.height - preview->top_height - preview->bottom_height - border_width * 2;
if (client_width < 0)
client_width = 1;
if (client_height < 0)
client_height = 1;
if (preview->theme)
{
border_width = GTK_CONTAINER (widget)->border_width;
meta_theme_draw_frame (preview->theme,
widget,
widget->window,
&event->area,
widget->allocation.x + border_width,
widget->allocation.y + border_width,
preview->type,
preview->flags,
client_width, client_height,
preview->layout,
preview->text_height,
&preview->button_layout,
button_states,
meta_preview_get_mini_icon (),
meta_preview_get_icon ());
}
/* draw child */
return GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
}
static void
meta_preview_size_request (GtkWidget *widget,
GtkRequisition *req)
{
MetaPreview *preview;
preview = META_PREVIEW (widget);
ensure_info (preview);
req->width = preview->left_width + preview->right_width;
req->height = preview->top_height + preview->bottom_height;
if (GTK_BIN (preview)->child &&
GTK_WIDGET_VISIBLE (GTK_BIN (preview)->child))
{
GtkRequisition child_requisition;
gtk_widget_size_request (GTK_BIN (preview)->child, &child_requisition);
req->width += child_requisition.width;
req->height += child_requisition.height;
}
else
{
#define NO_CHILD_WIDTH 80
#define NO_CHILD_HEIGHT 20
req->width += NO_CHILD_WIDTH;
req->height += NO_CHILD_HEIGHT;
}
req->width += GTK_CONTAINER (widget)->border_width * 2;
req->height += GTK_CONTAINER (widget)->border_width * 2;
}
static void
meta_preview_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
MetaPreview *preview;
int border_width;
GtkAllocation child_allocation;
preview = META_PREVIEW (widget);
ensure_info (preview);
widget->allocation = *allocation;
border_width = GTK_CONTAINER (widget)->border_width;
if (GTK_BIN (widget)->child &&
GTK_WIDGET_VISIBLE (GTK_BIN (widget)->child))
{
child_allocation.x = widget->allocation.x + border_width + preview->left_width;
child_allocation.y = widget->allocation.y + border_width + preview->top_height;
child_allocation.width = MAX (1, widget->allocation.width - border_width * 2 - preview->left_width - preview->right_width);
child_allocation.height = MAX (1, widget->allocation.height - border_width * 2 - preview->top_height - preview->bottom_height);
gtk_widget_size_allocate (GTK_BIN (widget)->child, &child_allocation);
}
}
static void
clear_cache (MetaPreview *preview)
{
if (preview->layout)
{
g_object_unref (G_OBJECT (preview->layout));
preview->layout = NULL;
}
preview->left_width = -1;
preview->right_width = -1;
preview->top_height = -1;
preview->bottom_height = -1;
}
void
meta_preview_set_theme (MetaPreview *preview,
MetaTheme *theme)
{
g_return_if_fail (META_IS_PREVIEW (preview));
preview->theme = theme;
clear_cache (preview);
gtk_widget_queue_resize (GTK_WIDGET (preview));
}
void
meta_preview_set_title (MetaPreview *preview,
const char *title)
{
g_return_if_fail (META_IS_PREVIEW (preview));
g_free (preview->title);
preview->title = g_strdup (title);
clear_cache (preview);
gtk_widget_queue_resize (GTK_WIDGET (preview));
}
void
meta_preview_set_frame_type (MetaPreview *preview,
MetaFrameType type)
{
g_return_if_fail (META_IS_PREVIEW (preview));
preview->type = type;
clear_cache (preview);
gtk_widget_queue_resize (GTK_WIDGET (preview));
}
void
meta_preview_set_frame_flags (MetaPreview *preview,
MetaFrameFlags flags)
{
g_return_if_fail (META_IS_PREVIEW (preview));
preview->flags = flags;
clear_cache (preview);
gtk_widget_queue_resize (GTK_WIDGET (preview));
}
void
meta_preview_set_button_layout (MetaPreview *preview,
const MetaButtonLayout *button_layout)
{
g_return_if_fail (META_IS_PREVIEW (preview));
preview->button_layout = *button_layout;
gtk_widget_queue_draw (GTK_WIDGET (preview));
}
#include "inlinepixbufs.h"
GdkPixbuf*
meta_preview_get_icon (void)
{
static GdkPixbuf *default_icon = NULL;
if (default_icon == NULL)
{
GdkPixbuf *base;
base = gdk_pixbuf_new_from_inline (-1, default_icon_data,
FALSE,
NULL);
g_assert (base);
default_icon = gdk_pixbuf_scale_simple (base,
META_ICON_WIDTH,
META_ICON_HEIGHT,
GDK_INTERP_BILINEAR);
g_object_unref (G_OBJECT (base));
}
return default_icon;
}
GdkPixbuf*
meta_preview_get_mini_icon (void)
{
static GdkPixbuf *default_icon = NULL;
if (default_icon == NULL)
{
GdkPixbuf *base;
base = gdk_pixbuf_new_from_inline (-1, default_icon_data,
FALSE,
NULL);
g_assert (base);
default_icon = gdk_pixbuf_scale_simple (base,
META_MINI_ICON_WIDTH,
META_MINI_ICON_HEIGHT,
GDK_INTERP_BILINEAR);
g_object_unref (G_OBJECT (base));
}
return default_icon;
}
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