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- /* The GIMP -- an image manipulation program
- * Copyright (C) 1995 Spencer Kimball and Peter Mattis
- *
- * brush_edit module Copyright 1998 Jay Cox <jaycox@earthlink.net>
- *
- * 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 <string.h>
-
- #include <gtk/gtk.h>
-
- #include "apptypes.h"
-
- #include "appenv.h"
- #include "gimpbrushgenerated.h"
- #include "brush_edit.h"
- #include "gimpui.h"
-
- #include "libgimp/gimpmath.h"
-
- #include "libgimp/gimpintl.h"
-
-
- static void brush_edit_close_callback (GtkWidget *widget,
- gpointer data);
- static gint brush_edit_preview_resize (GtkWidget *widget,
- GdkEvent *event,
- BrushEditGeneratedWindow *begw);
-
-
- static void
- update_brush_callback (GtkAdjustment *adjustment,
- BrushEditGeneratedWindow *begw)
- {
- if (begw->brush &&
- ((begw->radius_data->value
- != gimp_brush_generated_get_radius (begw->brush))
- || (begw->hardness_data->value
- != gimp_brush_generated_get_hardness (begw->brush))
- || (begw->aspect_ratio_data->value
- != gimp_brush_generated_get_aspect_ratio (begw->brush))
- || (begw->angle_data->value
- != gimp_brush_generated_get_angle (begw->brush))))
- {
- gimp_brush_generated_freeze (begw->brush);
- gimp_brush_generated_set_radius (begw->brush,
- begw->radius_data->value);
- gimp_brush_generated_set_hardness (begw->brush,
- begw->hardness_data->value);
- gimp_brush_generated_set_aspect_ratio (begw->brush,
- begw->aspect_ratio_data->value);
- gimp_brush_generated_set_angle (begw->brush,
- begw->angle_data->value);
- gimp_brush_generated_thaw (begw->brush);
- }
- }
-
- static void
- brush_edit_clear_preview (BrushEditGeneratedWindow *begw)
- {
- guchar *buf;
- gint i;
-
- buf = g_new (guchar, begw->preview->requisition.width);
-
- /* Set the buffer to white */
- memset (buf, 255, begw->preview->requisition.width);
-
- /* Set the image buffer to white */
- for (i = 0; i < begw->preview->requisition.height; i++)
- gtk_preview_draw_row (GTK_PREVIEW (begw->preview), buf, 0, i,
- begw->preview->requisition.width);
-
- g_free (buf);
- }
-
- static gint
- brush_edit_brush_dirty_callback (GimpBrush *brush,
- BrushEditGeneratedWindow *begw)
- {
- gint x, y, width, yend, ystart, xo;
- gint scale;
- gchar *src, *buf;
-
- brush_edit_clear_preview (begw);
- if (brush == NULL || brush->mask == NULL)
- return TRUE;
- scale = MAX (ceil (brush->mask->width/
- (float) begw->preview->requisition.width),
- ceil (brush->mask->height/
- (float) begw->preview->requisition.height));
-
- ystart = 0;
- xo = begw->preview->requisition.width/2 - brush->mask->width/(2*scale);
- ystart = begw->preview->requisition.height/2 - brush->mask->height/(2*scale);
- yend = ystart + brush->mask->height/(scale);
- width = CLAMP (brush->mask->width/scale, 0, begw->preview->requisition.width);
-
- buf = g_new (gchar, width);
- src = (gchar *) temp_buf_data (brush->mask);
-
- for (y = ystart; y < yend; y++)
- {
- /* Invert the mask for display.
- */
- for (x = 0; x < width; x++)
- buf[x] = 255 - src[x*scale];
- gtk_preview_draw_row (GTK_PREVIEW (begw->preview), (guchar *)buf, xo, y,
- width);
- src += brush->mask->width*scale;
- }
- g_free (buf);
- if (begw->scale != scale)
- {
- gchar str[255];
- begw->scale = scale;
- g_snprintf (str, sizeof (str), "%d:1", scale);
- gtk_label_set_text (GTK_LABEL (begw->scale_label), str);
- gtk_widget_draw (begw->scale_label, NULL);
- }
- gtk_widget_draw (begw->preview, NULL);
- return TRUE;
- }
-
- static void
- brush_renamed_callback (GtkWidget *widget,
- BrushEditGeneratedWindow *begw)
- {
- gtk_entry_set_text (GTK_ENTRY (begw->name),
- gimp_brush_get_name (GIMP_BRUSH (begw->brush)));
- }
-
- void
- brush_edit_generated_set_brush (BrushEditGeneratedWindow *begw,
- GimpBrush *gbrush)
- {
- GimpBrushGenerated *brush = NULL;
-
- g_return_if_fail (begw != NULL);
-
- if (begw->brush == (GimpBrushGenerated *) gbrush)
- return;
-
- if (begw->brush)
- {
- gtk_signal_disconnect_by_data (GTK_OBJECT (begw->brush), begw);
- gtk_object_unref (GTK_OBJECT (begw->brush));
- begw->brush = NULL;
- }
-
- if (!gbrush || !GIMP_IS_BRUSH_GENERATED (gbrush))
- {
- begw->brush = NULL;
- if (GTK_WIDGET_VISIBLE (begw->shell))
- gtk_widget_hide (begw->shell);
- return;
- }
-
- brush = GIMP_BRUSH_GENERATED (gbrush);
-
- gtk_signal_connect (GTK_OBJECT (brush), "dirty",
- GTK_SIGNAL_FUNC (brush_edit_brush_dirty_callback),
- begw);
- gtk_signal_connect (GTK_OBJECT (brush), "rename",
- GTK_SIGNAL_FUNC (brush_renamed_callback),
- begw);
-
- begw->brush = NULL;
- gtk_adjustment_set_value (GTK_ADJUSTMENT (begw->radius_data),
- gimp_brush_generated_get_radius (brush));
- gtk_adjustment_set_value (GTK_ADJUSTMENT (begw->hardness_data),
- gimp_brush_generated_get_hardness (brush));
- gtk_adjustment_set_value (GTK_ADJUSTMENT (begw->angle_data),
- gimp_brush_generated_get_angle (brush));
- gtk_adjustment_set_value (GTK_ADJUSTMENT (begw->aspect_ratio_data),
- gimp_brush_generated_get_aspect_ratio (brush));
- gtk_entry_set_text (GTK_ENTRY (begw->name), gimp_brush_get_name (gbrush));
- begw->brush = brush;
-
- gtk_object_ref (GTK_OBJECT (begw->brush));
- brush_edit_brush_dirty_callback (GIMP_BRUSH (brush), begw);
- }
-
- void
- name_changed_func (GtkWidget *widget,
- BrushEditGeneratedWindow *begw)
- {
- gchar *entry_text;
-
- entry_text = gtk_entry_get_text (GTK_ENTRY (widget));
- gimp_brush_set_name (GIMP_BRUSH (begw->brush), entry_text);
- }
-
- void
- focus_out_func (GtkWidget *wid1,
- GtkWidget *wid2,
- BrushEditGeneratedWindow *begw)
- {
- name_changed_func (wid1, begw);
- }
-
- BrushEditGeneratedWindow *
- brush_edit_generated_new (void)
- {
- BrushEditGeneratedWindow *begw;
- GtkWidget *vbox;
- GtkWidget *slider;
- GtkWidget *table;
-
- begw = g_new0 (BrushEditGeneratedWindow, 1);
-
- begw->shell = gimp_dialog_new (_("Brush Editor"), "generated_brush_editor",
- gimp_standard_help_func,
- "dialogs/brush_editor.html",
- GTK_WIN_POS_NONE,
- FALSE, TRUE, FALSE,
-
- _("Close"), brush_edit_close_callback,
- begw, NULL, NULL, TRUE, TRUE,
-
- NULL);
-
- vbox = gtk_vbox_new (FALSE, 1);
- gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
- gtk_container_add (GTK_CONTAINER (GTK_DIALOG (begw->shell)->vbox), vbox);
-
- /* Brush's name */
- begw->name = gtk_entry_new ();
- gtk_box_pack_start (GTK_BOX (vbox), begw->name, FALSE, FALSE, 0);
-
- gtk_signal_connect (GTK_OBJECT (begw->name), "activate",
- GTK_SIGNAL_FUNC (name_changed_func),
- begw);
- gtk_signal_connect (GTK_OBJECT (begw->name), "focus_out_event",
- GTK_SIGNAL_FUNC (focus_out_func),
- begw);
-
- gtk_widget_show (begw->name);
-
- /* brush's preview widget w/frame */
- begw->frame = gtk_frame_new (NULL);
- gtk_frame_set_shadow_type (GTK_FRAME (begw->frame), GTK_SHADOW_IN);
- gtk_box_pack_start (GTK_BOX (vbox), begw->frame, TRUE, TRUE, 0);
-
- begw->preview = gtk_preview_new (GTK_PREVIEW_GRAYSCALE);
- gtk_preview_size (GTK_PREVIEW (begw->preview), 125, 100);
- gtk_signal_connect_after (GTK_OBJECT (begw->frame), "size_allocate",
- GTK_SIGNAL_FUNC (brush_edit_preview_resize),
- begw);
- gtk_container_add (GTK_CONTAINER (begw->frame), begw->preview);
-
- gtk_widget_show (begw->preview);
- gtk_widget_show (begw->frame);
-
- /* table for sliders/labels */
- begw->scale_label = gtk_label_new ("-1:1");
- gtk_box_pack_start (GTK_BOX (vbox), begw->scale_label, FALSE, FALSE, 0);
- gtk_widget_show (begw->scale_label);
-
- begw->scale = -1;
-
- /* table for sliders/labels */
- table = gtk_table_new (4, 2, FALSE);
- gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
-
- /* brush radius scale */
- begw->radius_data =
- GTK_ADJUSTMENT (gtk_adjustment_new (10.0, 0.0, 100.0, 0.1, 1.0, 0.0));
- slider = gtk_hscale_new (begw->radius_data);
- gtk_scale_set_value_pos (GTK_SCALE (slider), GTK_POS_TOP);
- gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_DELAYED);
- gtk_signal_connect (GTK_OBJECT (begw->radius_data), "value_changed",
- GTK_SIGNAL_FUNC (update_brush_callback),
- begw);
- gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
- _("Radius:"), 1.0, 1.0,
- slider, 1, FALSE);
-
- /* brush hardness scale */
- begw->hardness_data =
- GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 1.0, 0.01, 0.01, 0.0));
- slider = gtk_hscale_new (begw->hardness_data);
- gtk_scale_set_value_pos (GTK_SCALE (slider), GTK_POS_TOP);
- gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_DELAYED);
- gtk_signal_connect (GTK_OBJECT (begw->hardness_data), "value_changed",
- GTK_SIGNAL_FUNC (update_brush_callback),
- begw);
- gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
- _("Hardness:"), 1.0, 1.0,
- slider, 1, FALSE);
-
- /* brush aspect ratio scale */
- begw->aspect_ratio_data =
- GTK_ADJUSTMENT (gtk_adjustment_new (1.0, 1.0, 20.0, 0.1, 1.0, 0.0));
- slider = gtk_hscale_new (begw->aspect_ratio_data);
- gtk_scale_set_value_pos (GTK_SCALE (slider), GTK_POS_TOP);
- gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_DELAYED);
- gtk_signal_connect (GTK_OBJECT (begw->aspect_ratio_data), "value_changed",
- GTK_SIGNAL_FUNC (update_brush_callback),
- begw);
- gimp_table_attach_aligned (GTK_TABLE (table), 0, 3,
- _("Aspect Ratio:"), 1.0, 1.0,
- slider, 1, FALSE);
-
- /* brush angle scale */
- begw->angle_data =
- GTK_ADJUSTMENT (gtk_adjustment_new (00.0, 0.0, 180.0, 0.1, 1.0, 0.0));
- slider = gtk_hscale_new (begw->angle_data);
- gtk_scale_set_value_pos (GTK_SCALE (slider), GTK_POS_TOP);
- gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_DELAYED);
- gtk_signal_connect (GTK_OBJECT (begw->angle_data), "value_changed",
- GTK_SIGNAL_FUNC (update_brush_callback),
- begw);
- gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
- _("Angle:"), 1.0, 1.0,
- slider, 1, FALSE);
-
- gtk_table_set_row_spacings (GTK_TABLE (table), 3);
- gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
- gtk_widget_show (table);
-
- gtk_widget_show (vbox);
- gtk_widget_show (begw->shell);
-
- return begw;
- }
-
- static gint
- brush_edit_preview_resize (GtkWidget *widget,
- GdkEvent *event,
- BrushEditGeneratedWindow *begw)
- {
- gtk_preview_size (GTK_PREVIEW (begw->preview),
- widget->allocation.width - 4,
- widget->allocation.height - 4);
-
- /* update the display */
- if (begw->brush)
- brush_edit_brush_dirty_callback (GIMP_BRUSH (begw->brush), begw);
-
- return FALSE;
- }
-
- static void
- brush_edit_close_callback (GtkWidget *widget,
- gpointer data)
- {
- BrushEditGeneratedWindow *begw = (BrushEditGeneratedWindow *) data;
-
- if (GTK_WIDGET_VISIBLE (begw->shell))
- gtk_widget_hide (begw->shell);
- }
-