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https://gitlab.gnome.org/GNOME/gimp
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1a44f2126c
2003-01-05 Manish Singh <yosh@gimp.org> * many files in app, modules and libgimp*: cleanup, removed unecessary G_OBJECT() casts. Should do the same for plug-ins, when more of them get undeprecated.
389 lines
12 KiB
C
389 lines
12 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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* gimpbrusheditor.c
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* Copyright 1998 Jay Cox <jaycox@earthlink.net>
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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 <string.h>
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#ifdef __GNUC__
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#warning GTK_DISABLE_DEPRECATED
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#endif
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#undef GTK_DISABLE_DEPRECATED
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#include <gtk/gtk.h>
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#include "libgimpmath/gimpmath.h"
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#include "libgimpwidgets/gimpwidgets.h"
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#include "widgets-types.h"
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#include "base/temp-buf.h"
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#include "core/gimpbrushgenerated.h"
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#include "gimpbrusheditor.h"
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#include "libgimp/gimpintl.h"
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/* local function prototypes */
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static void gimp_brush_editor_class_init (GimpBrushEditorClass *klass);
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static void gimp_brush_editor_init (GimpBrushEditor *editor);
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static void gimp_brush_editor_set_data (GimpDataEditor *editor,
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GimpData *data);
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static void gimp_brush_editor_update_brush (GtkAdjustment *adjustment,
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GimpBrushEditor *editor);
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static void gimp_brush_editor_preview_resize (GtkWidget *widget,
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GtkAllocation *allocation,
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GimpBrushEditor *editor);
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static void gimp_brush_editor_clear_preview (GimpBrushEditor *editor);
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static void gimp_brush_editor_brush_dirty (GimpBrush *brush,
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GimpBrushEditor *editor);
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static GimpDataEditorClass *parent_class = NULL;
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GType
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gimp_brush_editor_get_type (void)
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{
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static GType type = 0;
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if (! type)
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{
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static const GTypeInfo info =
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{
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sizeof (GimpBrushEditorClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) gimp_brush_editor_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GimpBrushEditor),
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0, /* n_preallocs */
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(GInstanceInitFunc) gimp_brush_editor_init,
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};
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type = g_type_register_static (GIMP_TYPE_DATA_EDITOR,
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"GimpBrushEditor",
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&info, 0);
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}
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return type;
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}
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static void
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gimp_brush_editor_class_init (GimpBrushEditorClass *klass)
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{
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GimpDataEditorClass *editor_class;
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editor_class = GIMP_DATA_EDITOR_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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editor_class->set_data = gimp_brush_editor_set_data;
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}
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static void
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gimp_brush_editor_init (GimpBrushEditor *editor)
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{
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/* brush's preview widget w/frame */
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editor->frame = gtk_frame_new (NULL);
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gtk_frame_set_shadow_type (GTK_FRAME (editor->frame), GTK_SHADOW_IN);
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gtk_box_pack_start (GTK_BOX (editor), editor->frame,
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TRUE, TRUE, 0);
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gtk_widget_show (editor->frame);
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editor->preview = gtk_preview_new (GTK_PREVIEW_GRAYSCALE);
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gtk_preview_size (GTK_PREVIEW (editor->preview), 125, 100);
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/* Enable auto-resizing of the preview but ensure a minimal size */
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gtk_widget_set_size_request (editor->preview, 125, 100);
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gtk_preview_set_expand (GTK_PREVIEW (editor->preview), TRUE);
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gtk_container_add (GTK_CONTAINER (editor->frame), editor->preview);
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gtk_widget_show (editor->preview);
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g_signal_connect_after (editor->frame, "size_allocate",
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G_CALLBACK (gimp_brush_editor_preview_resize),
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editor);
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/* table for sliders/labels */
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editor->scale_label = gtk_label_new ("-1:1");
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gtk_box_pack_start (GTK_BOX (editor), editor->scale_label, FALSE, FALSE, 0);
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gtk_widget_show (editor->scale_label);
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editor->scale = -1;
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/* table for sliders/labels */
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editor->options_table = gtk_table_new (4, 3, FALSE);
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gtk_table_set_row_spacings (GTK_TABLE (editor->options_table), 2);
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gtk_table_set_col_spacings (GTK_TABLE (editor->options_table), 2);
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gtk_box_pack_start (GTK_BOX (editor), editor->options_table, FALSE, FALSE, 0);
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gtk_widget_show (editor->options_table);
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/* brush radius scale */
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editor->radius_data =
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GTK_ADJUSTMENT (gimp_scale_entry_new (GTK_TABLE (editor->options_table),
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0, 0,
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_("Radius:"), -1, 5,
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0.0, 1.0, 100.0, 0.1, 1.0, 1,
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TRUE, 0.0, 0.0,
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NULL, NULL));
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g_signal_connect (editor->radius_data, "value_changed",
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G_CALLBACK (gimp_brush_editor_update_brush),
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editor);
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/* brush hardness scale */
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editor->hardness_data =
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GTK_ADJUSTMENT (gimp_scale_entry_new (GTK_TABLE (editor->options_table),
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0, 1,
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_("Hardness:"), -1, 5,
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0.0, 0.0, 1.0, 0.01, 0.1, 2,
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TRUE, 0.0, 0.0,
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NULL, NULL));
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g_signal_connect (editor->hardness_data, "value_changed",
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G_CALLBACK (gimp_brush_editor_update_brush),
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editor);
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/* brush aspect ratio scale */
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editor->aspect_ratio_data =
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GTK_ADJUSTMENT (gimp_scale_entry_new (GTK_TABLE (editor->options_table),
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0, 2,
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_("Aspect Ratio:"), -1, 5,
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0.0, 1.0, 20.0, 0.1, 1.0, 1,
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TRUE, 0.0, 0.0,
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NULL, NULL));
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g_signal_connect (editor->aspect_ratio_data,"value_changed",
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G_CALLBACK (gimp_brush_editor_update_brush),
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editor);
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/* brush angle scale */
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editor->angle_data =
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GTK_ADJUSTMENT (gimp_scale_entry_new (GTK_TABLE (editor->options_table),
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0, 3,
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_("Angle:"), -1, 5,
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0.0, 0.0, 180.0, 0.1, 1.0, 1,
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TRUE, 0.0, 0.0,
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NULL, NULL));
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g_signal_connect (editor->angle_data, "value_changed",
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G_CALLBACK (gimp_brush_editor_update_brush),
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editor);
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}
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static void
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gimp_brush_editor_set_data (GimpDataEditor *editor,
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GimpData *data)
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{
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GimpBrushEditor *brush_editor;
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brush_editor = GIMP_BRUSH_EDITOR (editor);
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if (editor->data)
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{
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g_signal_handlers_disconnect_by_func (editor->data,
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gimp_brush_editor_brush_dirty,
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editor);
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}
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GIMP_DATA_EDITOR_CLASS (parent_class)->set_data (editor, data);
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if (editor->data)
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{
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gdouble radius = 0.0;
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gdouble hardness = 0.0;
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gdouble angle = 0.0;
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gdouble ratio = 0.0;
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g_signal_connect (editor->data, "invalidate_preview",
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G_CALLBACK (gimp_brush_editor_brush_dirty),
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editor);
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if (GIMP_IS_BRUSH_GENERATED (editor->data))
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{
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GimpBrushGenerated *brush;
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brush = GIMP_BRUSH_GENERATED (editor->data);
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radius = gimp_brush_generated_get_radius (brush);
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hardness = gimp_brush_generated_get_hardness (brush);
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angle = gimp_brush_generated_get_angle (brush);
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ratio = gimp_brush_generated_get_aspect_ratio (brush);
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gtk_widget_set_sensitive (brush_editor->options_table, TRUE);
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}
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else
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{
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gtk_widget_set_sensitive (brush_editor->options_table, FALSE);
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}
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gtk_adjustment_set_value (brush_editor->radius_data, radius);
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gtk_adjustment_set_value (brush_editor->hardness_data, hardness);
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gtk_adjustment_set_value (brush_editor->angle_data, angle);
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gtk_adjustment_set_value (brush_editor->aspect_ratio_data, ratio);
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gimp_brush_editor_brush_dirty (GIMP_BRUSH (editor->data), brush_editor);
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}
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}
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/* public functions */
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GimpDataEditor *
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gimp_brush_editor_new (Gimp *gimp)
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{
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GimpBrushEditor *brush_editor;
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brush_editor = g_object_new (GIMP_TYPE_BRUSH_EDITOR, NULL);
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gimp_data_editor_construct (GIMP_DATA_EDITOR (brush_editor),
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gimp,
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GIMP_TYPE_BRUSH);
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return GIMP_DATA_EDITOR (brush_editor);
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}
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/* private functions */
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static void
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gimp_brush_editor_update_brush (GtkAdjustment *adjustment,
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GimpBrushEditor *editor)
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{
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GimpBrushGenerated *brush = NULL;
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if (GIMP_IS_BRUSH_GENERATED (GIMP_DATA_EDITOR (editor)->data))
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brush = GIMP_BRUSH_GENERATED (GIMP_DATA_EDITOR (editor)->data);
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if (brush &&
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((editor->radius_data->value
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!= gimp_brush_generated_get_radius (brush))
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|| (editor->hardness_data->value
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!= gimp_brush_generated_get_hardness (brush))
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|| (editor->aspect_ratio_data->value
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!= gimp_brush_generated_get_aspect_ratio (brush))
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|| (editor->angle_data->value
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!= gimp_brush_generated_get_angle (brush))))
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{
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gimp_brush_generated_freeze (brush);
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gimp_brush_generated_set_radius (brush,
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editor->radius_data->value);
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gimp_brush_generated_set_hardness (brush,
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editor->hardness_data->value);
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gimp_brush_generated_set_aspect_ratio (brush,
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editor->aspect_ratio_data->value);
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gimp_brush_generated_set_angle (brush,
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editor->angle_data->value);
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gimp_brush_generated_thaw (brush);
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}
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}
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static void
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gimp_brush_editor_preview_resize (GtkWidget *widget,
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GtkAllocation *allocation,
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GimpBrushEditor *editor)
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{
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if (GIMP_DATA_EDITOR (editor)->data)
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gimp_brush_editor_brush_dirty (GIMP_BRUSH (GIMP_DATA_EDITOR (editor)->data),
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editor);
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}
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static void
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gimp_brush_editor_clear_preview (GimpBrushEditor *editor)
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{
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guchar *buf;
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gint i;
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buf = g_new (guchar, editor->preview->allocation.width);
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/* Set the buffer to white */
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memset (buf, 255, editor->preview->allocation.width);
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/* Set the image buffer to white */
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for (i = 0; i < editor->preview->allocation.height; i++)
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gtk_preview_draw_row (GTK_PREVIEW (editor->preview), buf, 0, i,
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editor->preview->allocation.width);
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g_free (buf);
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}
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static void
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gimp_brush_editor_brush_dirty (GimpBrush *brush,
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GimpBrushEditor *editor)
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{
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gint x, y, width, yend, ystart, xo;
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gint scale;
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guchar *src, *buf;
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gimp_brush_editor_clear_preview (editor);
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if (! (brush && brush->mask))
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return;
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scale = MAX (ceil (brush->mask->width/
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(float) editor->preview->allocation.width),
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ceil (brush->mask->height/
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(float) editor->preview->allocation.height));
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ystart = 0;
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xo = editor->preview->allocation.width / 2 - brush->mask->width / (2 * scale);
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ystart = editor->preview->allocation.height / 2 - brush->mask->height / (2 * scale);
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yend = ystart + brush->mask->height / scale;
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width = CLAMP (brush->mask->width/scale, 0, editor->preview->allocation.width);
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buf = g_new (guchar, width);
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src = (guchar *) temp_buf_data (brush->mask);
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for (y = ystart; y < yend; y++)
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{
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/* Invert the mask for display.
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*/
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for (x = 0; x < width; x++)
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buf[x] = 255 - src[x * scale];
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gtk_preview_draw_row (GTK_PREVIEW (editor->preview), buf,
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xo, y, width);
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src += brush->mask->width * scale;
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}
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g_free (buf);
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if (editor->scale != scale)
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{
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gchar str[255];
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editor->scale = scale;
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g_snprintf (str, sizeof (str), "%d:1", scale);
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gtk_label_set_text (GTK_LABEL (editor->scale_label), str);
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}
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gtk_widget_queue_draw (editor->preview);
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}
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