mirror of https://github.com/GNOME/gimp.git
165 lines
4.3 KiB
C
165 lines
4.3 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* GimpGradientPreview Widget
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* Copyright (C) 2001 Michael Natterer
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include "apptypes.h"
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#include "gimpgradient.h"
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#include "gimpgradientpreview.h"
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#include "temp_buf.h"
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static void gimp_gradient_preview_class_init (GimpGradientPreviewClass *klass);
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static void gimp_gradient_preview_init (GimpGradientPreview *preview);
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static void gimp_gradient_preview_render (GimpPreview *preview);
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static void gimp_gradient_preview_get_size (GimpPreview *preview,
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gint size,
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gint *width,
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gint *height);
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static gboolean gimp_gradient_preview_needs_popup (GimpPreview *preview);
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static GtkWidget * gimp_gradient_preview_create_popup (GimpPreview *preview);
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static GimpPreviewClass *parent_class = NULL;
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GtkType
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gimp_gradient_preview_get_type (void)
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{
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static GtkType preview_type = 0;
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if (! preview_type)
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{
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GtkTypeInfo preview_info =
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{
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"GimpGradientPreview",
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sizeof (GimpGradientPreview),
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sizeof (GimpGradientPreviewClass),
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(GtkClassInitFunc) gimp_gradient_preview_class_init,
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(GtkObjectInitFunc) gimp_gradient_preview_init,
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/* reserved_1 */ NULL,
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/* reserved_2 */ NULL,
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(GtkClassInitFunc) NULL
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};
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preview_type = gtk_type_unique (GIMP_TYPE_PREVIEW, &preview_info);
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}
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return preview_type;
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}
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static void
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gimp_gradient_preview_class_init (GimpGradientPreviewClass *klass)
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{
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GtkObjectClass *object_class;
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GimpPreviewClass *preview_class;
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object_class = (GtkObjectClass *) klass;
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preview_class = (GimpPreviewClass *) klass;
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parent_class = gtk_type_class (GIMP_TYPE_PREVIEW);
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preview_class->get_size = gimp_gradient_preview_get_size;
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preview_class->render = gimp_gradient_preview_render;
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preview_class->needs_popup = gimp_gradient_preview_needs_popup;
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preview_class->create_popup = gimp_gradient_preview_create_popup;
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}
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static void
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gimp_gradient_preview_init (GimpGradientPreview *gradient_preview)
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{
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}
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static void
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gimp_gradient_preview_get_size (GimpPreview *preview,
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gint size,
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gint *width,
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gint *height)
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{
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*width = size * 3;
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*height = size;
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}
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static void
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gimp_gradient_preview_render (GimpPreview *preview)
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{
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GimpGradient *gradient;
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TempBuf *temp_buf;
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gint width;
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gint height;
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gradient = GIMP_GRADIENT (preview->viewable);
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width = preview->width;
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height = preview->height;
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temp_buf = gimp_viewable_get_new_preview (preview->viewable,
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width, height);
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gimp_preview_render_and_flush (preview,
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temp_buf,
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-1);
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temp_buf_free (temp_buf);
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}
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static gboolean
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gimp_gradient_preview_needs_popup (GimpPreview *preview)
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{
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GimpGradient *gradient;
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gint popup_width;
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gint popup_height;
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gradient = GIMP_GRADIENT (preview->viewable);
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popup_width = 48;
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popup_height = 24;
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if (popup_width > preview->width ||
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popup_height > preview->height)
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return TRUE;
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return FALSE;
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}
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static GtkWidget *
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gimp_gradient_preview_create_popup (GimpPreview *preview)
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{
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GimpGradient *gradient;
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gint popup_width;
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gint popup_height;
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gradient = GIMP_GRADIENT (preview->viewable);
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popup_width = 128;
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popup_height = 32;
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return gimp_preview_new_full (preview->viewable,
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popup_width,
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popup_height,
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0,
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TRUE, FALSE, FALSE);
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}
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