mirror of https://github.com/GNOME/gimp.git
425 lines
15 KiB
C
425 lines
15 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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* gimpsamplepointeditor.c
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* Copyright (C) 2005 Michael Natterer <mitch@gimp.org>
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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 "libgimpwidgets/gimpwidgets.h"
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#include "widgets-types.h"
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#include "core/gimp.h"
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#include "core/gimpimage.h"
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#include "core/gimpimage-pick-color.h"
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#include "core/gimpimage-sample-points.h"
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#include "gimpcolorframe.h"
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#include "gimpmenufactory.h"
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#include "gimpsamplepointeditor.h"
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#include "gimpwidgets-utils.h"
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#include "gimp-intl.h"
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static void gimp_sample_point_editor_class_init (GimpSamplePointEditorClass *klass);
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static void gimp_sample_point_editor_init (GimpSamplePointEditor *editor);
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static GObject * gimp_sample_point_editor_constructor (GType type,
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guint n_params,
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GObjectConstructParam *params);
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static void gimp_sample_point_editor_dispose (GObject *object);
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static void gimp_sample_point_editor_style_set (GtkWidget *widget,
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GtkStyle *prev_style);
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static void gimp_sample_point_editor_set_image (GimpImageEditor *editor,
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GimpImage *gimage);
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static void gimp_sample_point_editor_point_added (GimpImage *gimage,
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GimpSamplePoint *sample_point,
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GimpSamplePointEditor *editor);
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static void gimp_sample_point_editor_point_removed (GimpImage *gimage,
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GimpSamplePoint *sample_point,
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GimpSamplePointEditor *editor);
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static void gimp_sample_point_editor_point_update (GimpImage *gimage,
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GimpSamplePoint *sample_point,
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GimpSamplePointEditor *editor);
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static void gimp_sample_point_editor_proj_update (GimpImage *gimage,
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gboolean now,
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gint x,
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gint y,
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gint width,
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gint height,
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GimpSamplePointEditor *editor);
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static void gimp_sample_point_editor_points_changed (GimpSamplePointEditor *editor);
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static void gimp_sample_point_editor_dirty (GimpSamplePointEditor *editor,
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gint index);
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static gboolean gimp_sample_point_editor_update (GimpSamplePointEditor *editor);
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static GimpImageEditorClass *parent_class = NULL;
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GType
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gimp_sample_point_editor_get_type (void)
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{
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static GType editor_type = 0;
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if (! editor_type)
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{
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static const GTypeInfo editor_info =
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{
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sizeof (GimpSamplePointEditorClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gimp_sample_point_editor_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GimpSamplePointEditor),
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0, /* n_preallocs */
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(GInstanceInitFunc) gimp_sample_point_editor_init,
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};
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editor_type = g_type_register_static (GIMP_TYPE_IMAGE_EDITOR,
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"GimpSamplePointEditor",
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&editor_info, 0);
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}
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return editor_type;
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}
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static void
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gimp_sample_point_editor_class_init (GimpSamplePointEditorClass* klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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GimpImageEditorClass *image_editor_class = GIMP_IMAGE_EDITOR_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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object_class->constructor = gimp_sample_point_editor_constructor;
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object_class->dispose = gimp_sample_point_editor_dispose;
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widget_class->style_set = gimp_sample_point_editor_style_set;
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image_editor_class->set_image = gimp_sample_point_editor_set_image;
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}
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static void
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gimp_sample_point_editor_init (GimpSamplePointEditor *editor)
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{
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gint content_spacing;
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gint i;
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gint row = 0;
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gint column = 0;
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gtk_widget_style_get (GTK_WIDGET (editor),
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"content_spacing", &content_spacing,
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NULL);
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editor->table = gtk_table_new (2, 2, TRUE);
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gtk_table_set_row_spacing (GTK_TABLE (editor->table), 0, content_spacing);
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gtk_table_set_col_spacing (GTK_TABLE (editor->table), 0, content_spacing);
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gtk_box_pack_start (GTK_BOX (editor), editor->table, FALSE, FALSE, 0);
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gtk_widget_show (editor->table);
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for (i = 0; i < 4; i++)
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{
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editor->color_frames[i] = gimp_color_frame_new ();
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gimp_color_frame_set_mode (GIMP_COLOR_FRAME (editor->color_frames[i]),
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GIMP_COLOR_FRAME_MODE_PIXEL);
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gtk_widget_set_sensitive (editor->color_frames[i], FALSE);
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gtk_table_attach (GTK_TABLE (editor->table), editor->color_frames[i],
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column, column + 1, row, row + 1,
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GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
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gtk_widget_show (editor->color_frames[i]);
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column++;
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if (column > 1)
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{
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column = 0;
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row++;
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}
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}
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}
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static GObject *
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gimp_sample_point_editor_constructor (GType type,
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guint n_params,
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GObjectConstructParam *params)
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{
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GObject *object;
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GimpSamplePointEditor *editor;
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object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
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editor = GIMP_SAMPLE_POINT_EDITOR (object);
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return object;
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}
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static void
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gimp_sample_point_editor_dispose (GObject *object)
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{
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GimpSamplePointEditor *editor = GIMP_SAMPLE_POINT_EDITOR (object);
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if (editor->dirty_idle_id)
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{
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g_source_remove (editor->dirty_idle_id);
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editor->dirty_idle_id = 0;
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}
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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gimp_sample_point_editor_style_set (GtkWidget *widget,
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GtkStyle *prev_style)
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{
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GimpSamplePointEditor *editor = GIMP_SAMPLE_POINT_EDITOR (widget);
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gint content_spacing;
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if (GTK_WIDGET_CLASS (parent_class)->style_set)
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GTK_WIDGET_CLASS (parent_class)->style_set (widget, prev_style);
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gtk_widget_style_get (widget,
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"content_spacing", &content_spacing,
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NULL);
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gtk_table_set_row_spacing (GTK_TABLE (editor->table), 0, content_spacing);
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gtk_table_set_col_spacing (GTK_TABLE (editor->table), 0, content_spacing);
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}
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static void
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gimp_sample_point_editor_set_image (GimpImageEditor *image_editor,
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GimpImage *gimage)
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{
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GimpSamplePointEditor *editor = GIMP_SAMPLE_POINT_EDITOR (image_editor);
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if (image_editor->gimage)
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{
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g_signal_handlers_disconnect_by_func (image_editor->gimage,
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gimp_sample_point_editor_point_added,
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editor);
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g_signal_handlers_disconnect_by_func (image_editor->gimage,
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gimp_sample_point_editor_point_removed,
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editor);
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g_signal_handlers_disconnect_by_func (image_editor->gimage,
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gimp_sample_point_editor_point_update,
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editor);
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g_signal_handlers_disconnect_by_func (image_editor->gimage->projection,
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gimp_sample_point_editor_proj_update,
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editor);
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}
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GIMP_IMAGE_EDITOR_CLASS (parent_class)->set_image (image_editor, gimage);
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if (gimage)
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{
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g_signal_connect (gimage, "sample-point-added",
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G_CALLBACK (gimp_sample_point_editor_point_added),
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editor);
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g_signal_connect (gimage, "sample-point-removed",
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G_CALLBACK (gimp_sample_point_editor_point_removed),
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editor);
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g_signal_connect (gimage, "update-sample-point",
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G_CALLBACK (gimp_sample_point_editor_point_update),
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editor);
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g_signal_connect (gimage->projection, "update",
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G_CALLBACK (gimp_sample_point_editor_proj_update),
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editor);
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}
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gimp_sample_point_editor_points_changed (editor);
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}
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/* public functions */
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GtkWidget *
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gimp_sample_point_editor_new (GimpMenuFactory *menu_factory)
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{
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g_return_val_if_fail (GIMP_IS_MENU_FACTORY (menu_factory), NULL);
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return g_object_new (GIMP_TYPE_SAMPLE_POINT_EDITOR,
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#if 0
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"menu-factory", menu_factory,
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"menu-identifier", "<SamplePointEditor>",
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"ui-path", "/selection-editor-popup",
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#endif
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NULL);
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}
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/* private functions */
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static void
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gimp_sample_point_editor_point_added (GimpImage *gimage,
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GimpSamplePoint *sample_point,
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GimpSamplePointEditor *editor)
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{
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gimp_sample_point_editor_points_changed (editor);
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}
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static void
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gimp_sample_point_editor_point_removed (GimpImage *gimage,
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GimpSamplePoint *sample_point,
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GimpSamplePointEditor *editor)
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{
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gimp_sample_point_editor_points_changed (editor);
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}
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static void
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gimp_sample_point_editor_point_update (GimpImage *gimage,
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GimpSamplePoint *sample_point,
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GimpSamplePointEditor *editor)
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{
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gint i = g_list_index (gimage->sample_points, sample_point);
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if (i < 4)
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gimp_sample_point_editor_dirty (editor, i);
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}
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static void
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gimp_sample_point_editor_proj_update (GimpImage *gimage,
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gboolean now,
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gint x,
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gint y,
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gint width,
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gint height,
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GimpSamplePointEditor *editor)
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{
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GimpImageEditor *image_editor = GIMP_IMAGE_EDITOR (editor);
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gint n_points = 0;
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GList *list;
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gint i;
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n_points = MIN (4, g_list_length (image_editor->gimage->sample_points));
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for (i = 0, list = image_editor->gimage->sample_points;
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i < n_points;
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i++, list = g_list_next (list))
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{
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GimpSamplePoint *sample_point = list->data;
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if (sample_point->x >= x && sample_point->x < (x + width) &&
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sample_point->y >= y && sample_point->y < (y + height))
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{
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gimp_sample_point_editor_dirty (editor, i);
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}
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}
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}
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static void
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gimp_sample_point_editor_points_changed (GimpSamplePointEditor *editor)
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{
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GimpImageEditor *image_editor = GIMP_IMAGE_EDITOR (editor);
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gint n_points = 0;
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gint i;
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if (image_editor->gimage)
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n_points = MIN (4, g_list_length (image_editor->gimage->sample_points));
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for (i = 0; i < n_points; i++)
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{
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gtk_widget_set_sensitive (editor->color_frames[i], TRUE);
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editor->dirty[i] = TRUE;
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}
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for (i = n_points; i < 4; i++)
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{
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gtk_widget_set_sensitive (editor->color_frames[i], FALSE);
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gimp_color_frame_set_invalid (GIMP_COLOR_FRAME (editor->color_frames[i]));
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editor->dirty[i] = FALSE;
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}
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if (n_points > 0)
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gimp_sample_point_editor_dirty (editor, -1);
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}
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static void
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gimp_sample_point_editor_dirty (GimpSamplePointEditor *editor,
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gint index)
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{
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if (index >= 0)
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editor->dirty[index] = TRUE;
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if (editor->dirty_idle_id)
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g_source_remove (editor->dirty_idle_id);
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editor->dirty_idle_id =
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g_idle_add ((GSourceFunc) gimp_sample_point_editor_update,
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editor);
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}
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static gboolean
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gimp_sample_point_editor_update (GimpSamplePointEditor *editor)
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{
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GimpImageEditor *image_editor = GIMP_IMAGE_EDITOR (editor);
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gint n_points = 0;
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GList *list;
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gint i;
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editor->dirty_idle_id = 0;
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if (! image_editor->gimage)
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return FALSE;
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n_points = MIN (4, g_list_length (image_editor->gimage->sample_points));
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for (i = 0, list = image_editor->gimage->sample_points;
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i < n_points;
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i++, list = g_list_next (list))
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{
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if (editor->dirty[i])
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{
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GimpSamplePoint *sample_point = list->data;
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GimpColorFrame *color_frame;
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GimpImageType image_type;
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GimpRGB color;
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gint color_index;
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editor->dirty[i] = FALSE;
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color_frame = GIMP_COLOR_FRAME (editor->color_frames[i]);
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if (gimp_image_pick_color (image_editor->gimage, NULL,
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sample_point->x,
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sample_point->y,
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TRUE, FALSE, 0.0,
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&image_type,
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&color,
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&color_index))
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{
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gimp_color_frame_set_color (color_frame, image_type,
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&color, color_index);
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}
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else
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{
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gimp_color_frame_set_invalid (color_frame);
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}
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}
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}
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return FALSE;
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}
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