2001-11-13 03:31:47 +00:00
|
|
|
/* The GIMP -- an image manipulation program
|
|
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
|
|
*
|
|
|
|
* GimpImagefilePreview Widget
|
|
|
|
* Copyright (C) 2001 Michael Natterer <mitch@gimp.org>
|
|
|
|
*
|
|
|
|
* 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 "config.h"
|
|
|
|
|
|
|
|
#include <gtk/gtk.h>
|
|
|
|
|
|
|
|
#include "widgets-types.h"
|
|
|
|
|
|
|
|
#include "base/temp-buf.h"
|
|
|
|
|
|
|
|
#include "core/gimpimagefile.h"
|
|
|
|
|
|
|
|
#include "gimpimagefilepreview.h"
|
|
|
|
|
|
|
|
|
|
|
|
static void gimp_imagefile_preview_class_init (GimpImagefilePreviewClass *klass);
|
|
|
|
|
2002-02-18 01:28:12 +00:00
|
|
|
static void gimp_imagefile_finalize (GObject *object);
|
|
|
|
static gboolean gimp_imagefile_expose_event (GtkWidget *widget,
|
|
|
|
GdkEventExpose *event);
|
|
|
|
static void gimp_imagefile_preview_render (GimpPreview *preview);
|
|
|
|
static gboolean gimp_imagefile_preview_needs_popup (GimpPreview *preview);
|
2001-11-13 03:31:47 +00:00
|
|
|
|
|
|
|
|
|
|
|
static GimpPreviewClass *parent_class = NULL;
|
|
|
|
|
|
|
|
|
|
|
|
GType
|
|
|
|
gimp_imagefile_preview_get_type (void)
|
|
|
|
{
|
|
|
|
static GType preview_type = 0;
|
|
|
|
|
|
|
|
if (! preview_type)
|
|
|
|
{
|
|
|
|
static const GTypeInfo preview_info =
|
|
|
|
{
|
|
|
|
sizeof (GimpImagefilePreviewClass),
|
|
|
|
NULL, /* base_init */
|
|
|
|
NULL, /* base_finalize */
|
|
|
|
(GClassInitFunc) gimp_imagefile_preview_class_init,
|
|
|
|
NULL, /* class_finalize */
|
|
|
|
NULL, /* class_data */
|
|
|
|
sizeof (GimpImagefilePreview),
|
|
|
|
0, /* n_preallocs */
|
|
|
|
NULL /* instance_init */
|
|
|
|
};
|
|
|
|
|
|
|
|
preview_type = g_type_register_static (GIMP_TYPE_PREVIEW,
|
|
|
|
"GimpImagefilePreview",
|
|
|
|
&preview_info, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
return preview_type;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gimp_imagefile_preview_class_init (GimpImagefilePreviewClass *klass)
|
|
|
|
{
|
2002-02-18 01:28:12 +00:00
|
|
|
GObjectClass *object_class;
|
|
|
|
GtkWidgetClass *widget_class;
|
2001-11-13 03:31:47 +00:00
|
|
|
GimpPreviewClass *preview_class;
|
|
|
|
|
2002-02-18 01:28:12 +00:00
|
|
|
parent_class = g_type_class_peek_parent (klass);
|
|
|
|
|
|
|
|
object_class = G_OBJECT_CLASS (klass);
|
|
|
|
widget_class = GTK_WIDGET_CLASS (klass);
|
2001-11-13 03:31:47 +00:00
|
|
|
preview_class = GIMP_PREVIEW_CLASS (klass);
|
|
|
|
|
2002-02-18 01:28:12 +00:00
|
|
|
object_class->finalize = gimp_imagefile_finalize;
|
|
|
|
|
|
|
|
widget_class->expose_event = gimp_imagefile_expose_event;
|
|
|
|
|
|
|
|
preview_class->needs_popup = gimp_imagefile_preview_needs_popup;
|
|
|
|
preview_class->render = gimp_imagefile_preview_render;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gimp_imagefile_finalize (GObject *object)
|
|
|
|
{
|
|
|
|
GimpImagefilePreview *preview = GIMP_IMAGEFILE_PREVIEW (object);
|
|
|
|
|
|
|
|
if (preview->no_preview_pixbuf)
|
|
|
|
g_object_unref (preview->no_preview_pixbuf);
|
|
|
|
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
|
|
}
|
2001-11-13 03:31:47 +00:00
|
|
|
|
2002-02-18 01:28:12 +00:00
|
|
|
static gboolean
|
|
|
|
gimp_imagefile_expose_event (GtkWidget *widget,
|
|
|
|
GdkEventExpose *event)
|
|
|
|
{
|
|
|
|
GimpImagefilePreview *preview = GIMP_IMAGEFILE_PREVIEW (widget);
|
|
|
|
GdkRectangle draw_rect;
|
|
|
|
GdkRectangle rect;
|
|
|
|
|
|
|
|
if (!GTK_WIDGET_DRAWABLE (widget))
|
|
|
|
return FALSE;
|
|
|
|
|
|
|
|
if (!preview->no_preview_pixbuf)
|
|
|
|
return GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
|
|
|
|
|
|
|
|
rect.width = gdk_pixbuf_get_width (preview->no_preview_pixbuf);
|
|
|
|
rect.height = gdk_pixbuf_get_height (preview->no_preview_pixbuf);
|
|
|
|
rect.x = (widget->allocation.width - rect.width) / 2;
|
|
|
|
rect.y = (widget->allocation.height - rect.height) / 2;
|
|
|
|
|
|
|
|
if (gdk_rectangle_intersect (&rect, &event->area, &draw_rect))
|
|
|
|
gdk_pixbuf_render_to_drawable (preview->no_preview_pixbuf,
|
|
|
|
GDK_DRAWABLE (widget->window),
|
|
|
|
widget->style->bg_gc[widget->state],
|
|
|
|
draw_rect.x - rect.x,
|
|
|
|
draw_rect.y - rect.y,
|
|
|
|
draw_rect.x, draw_rect.y,
|
|
|
|
draw_rect.width, draw_rect.height,
|
|
|
|
GDK_RGB_DITHER_NORMAL,
|
|
|
|
event->area.x, event->area.y);
|
|
|
|
|
|
|
|
return FALSE;
|
2001-11-13 03:31:47 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gimp_imagefile_preview_render (GimpPreview *preview)
|
|
|
|
{
|
2002-02-18 01:28:12 +00:00
|
|
|
GimpImagefilePreview *file_preview = GIMP_IMAGEFILE_PREVIEW (preview);
|
|
|
|
TempBuf *render_buf;
|
2001-11-13 03:31:47 +00:00
|
|
|
|
|
|
|
g_return_if_fail (preview->width > 0 && preview->height > 0);
|
|
|
|
|
|
|
|
render_buf = gimp_viewable_get_new_preview (preview->viewable,
|
|
|
|
preview->width,
|
|
|
|
preview->height);
|
|
|
|
|
2002-02-18 01:28:12 +00:00
|
|
|
if (render_buf)
|
2001-11-13 03:31:47 +00:00
|
|
|
{
|
2002-02-18 01:28:12 +00:00
|
|
|
TempBuf *temp_buf;
|
|
|
|
guchar white[4] = { 255, 255, 255, 255 };
|
|
|
|
|
|
|
|
if (file_preview->no_preview_pixbuf)
|
|
|
|
{
|
|
|
|
g_object_unref (file_preview->no_preview_pixbuf);
|
|
|
|
file_preview->no_preview_pixbuf = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (render_buf->width > preview->width ||
|
|
|
|
render_buf->height > preview->height)
|
|
|
|
{
|
|
|
|
gdouble ratio;
|
|
|
|
gint width;
|
|
|
|
gint height;
|
|
|
|
|
|
|
|
if (render_buf->width >= render_buf->height)
|
|
|
|
ratio = (gdouble) preview->width / (gdouble) render_buf->width;
|
|
|
|
else
|
|
|
|
ratio = (gdouble) preview->height / (gdouble) render_buf->height;
|
|
|
|
|
|
|
|
width = RINT (ratio * render_buf->width);
|
|
|
|
height = RINT (ratio * render_buf->height);
|
|
|
|
|
|
|
|
temp_buf = render_buf;
|
|
|
|
render_buf = temp_buf_scale (temp_buf, width, height);
|
|
|
|
temp_buf_free (temp_buf);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (render_buf->width != preview->width ||
|
|
|
|
render_buf->height != preview->height)
|
|
|
|
{
|
|
|
|
gint x, y;
|
|
|
|
|
|
|
|
x = (preview->width - render_buf->width) / 2;
|
|
|
|
y = (preview->height - render_buf->height) / 2;
|
|
|
|
|
|
|
|
temp_buf = temp_buf_new (preview->width, preview->height,
|
|
|
|
render_buf->bytes,
|
|
|
|
0, 0,
|
|
|
|
white);
|
|
|
|
temp_buf_copy_area (render_buf, temp_buf,
|
|
|
|
0, 0,
|
|
|
|
render_buf->width,
|
|
|
|
render_buf->height,
|
|
|
|
x, y);
|
|
|
|
temp_buf_free (render_buf);
|
|
|
|
|
|
|
|
render_buf = temp_buf;
|
|
|
|
}
|
|
|
|
|
|
|
|
gimp_preview_render_and_flush (preview, render_buf, -1);
|
|
|
|
|
|
|
|
temp_buf_free (render_buf);
|
2001-11-13 03:31:47 +00:00
|
|
|
}
|
2002-02-18 01:28:12 +00:00
|
|
|
else /* no preview available */
|
2001-11-13 03:31:47 +00:00
|
|
|
{
|
2002-02-18 01:28:12 +00:00
|
|
|
GdkPixbuf *pixbuf;
|
|
|
|
gint width, height;
|
|
|
|
|
|
|
|
if (preview->buffer)
|
|
|
|
{
|
|
|
|
g_free (preview->buffer);
|
|
|
|
preview->buffer = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (file_preview->no_preview_pixbuf)
|
|
|
|
{
|
|
|
|
g_object_unref (file_preview->no_preview_pixbuf);
|
|
|
|
file_preview->no_preview_pixbuf = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
pixbuf = gtk_widget_render_icon (GTK_WIDGET (preview),
|
|
|
|
GTK_STOCK_DIALOG_QUESTION,
|
|
|
|
GTK_ICON_SIZE_DIALOG,
|
|
|
|
NULL);
|
|
|
|
if (pixbuf)
|
|
|
|
{
|
|
|
|
width = gdk_pixbuf_get_width (pixbuf);
|
|
|
|
height = gdk_pixbuf_get_height (pixbuf);
|
|
|
|
|
|
|
|
if (width > preview->width || height > preview->height)
|
|
|
|
{
|
|
|
|
gdouble ratio =
|
|
|
|
MIN ((gdouble) preview->width / (gdouble) width,
|
|
|
|
(gdouble) preview->height / (gdouble) height);
|
|
|
|
|
|
|
|
width = ratio * (gdouble) width;
|
|
|
|
height = ratio * (gdouble) height;
|
|
|
|
|
|
|
|
file_preview->no_preview_pixbuf =
|
|
|
|
gdk_pixbuf_scale_simple (pixbuf, width, height,
|
|
|
|
GDK_INTERP_BILINEAR);
|
|
|
|
g_object_unref (pixbuf);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
file_preview->no_preview_pixbuf = pixbuf;
|
|
|
|
}
|
|
|
|
|
|
|
|
gtk_widget_queue_draw (GTK_WIDGET (preview));
|
2001-11-13 03:31:47 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
|
|
|
gimp_imagefile_preview_needs_popup (GimpPreview *preview)
|
|
|
|
{
|
|
|
|
return FALSE;
|
|
|
|
}
|