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f235eabbf1
2001-09-26 Michael Natterer <mitch@gimp.org> * app/Makefile.am * app/disp_callbacks.[ch] * app/gdisplay.[ch] * app/gdisplay_ops.[ch] * app/gximage.[ch] * app/image_render.[ch] * app/interface.[ch] * app/marching_ants.h * app/scale.[ch] * app/scroll.[ch] * app/selection.[ch]: removed. * app/display/Makefile.am * app/display/display-types.h * app/display/gimpdisplay-callbacks.[ch] * app/display/gimpdisplay-marching-ants.h * app/display/gimpdisplay-ops.[ch] * app/display/gimpdisplay-render.[ch] * app/display/gimpdisplay-scale.[ch] * app/display/gimpdisplay-scroll.[ch] * app/display/gimpdisplay-selection.[ch] * app/display/gimpdisplay.[ch] * app/display/gimpdisplayshell.[ch] * app/display/gximage.[ch]: added here. * app/[many files] * app/gui/[many files] * app/tools/* * app/widgets/[many files]: changed accordingly. Still very incomplete separation of the display stuff but it at least compiles. * tools/pdbgen/pdb.pl: * tools/pdbgen/pdb/display.pdb: s/GDisplay/GimpDisplay/, s/"gdisplay.h"/"display/gimpdisplay.h"/. * app/pdb/display_cmds.c: regenerated.
433 lines
12 KiB
C
433 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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* 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 <stdlib.h>
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#include <string.h>
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#include <gtk/gtk.h>
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#include "libgimpwidgets/gimpwidgets.h"
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#include "libgimpmath/gimpmath.h"
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#include "tools-types.h"
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#include "core/gimpchannel.h"
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#include "core/gimpimage.h"
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#include "core/gimpimage-mask.h"
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#include "core/gimpscanconvert.h"
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#include "display/gimpdisplay.h"
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#include "gimpeditselectiontool.h"
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#include "gimpfreeselecttool.h"
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#include "selection_options.h"
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#include "tool_options.h"
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#include "tool_manager.h"
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#include "errors.h"
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#include "floating_sel.h"
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#include "libgimp/gimpintl.h"
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#define DEFAULT_MAX_INC 1024
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#define SUPERSAMPLE 3
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#define SUPERSAMPLE2 9
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static void gimp_free_select_tool_class_init (GimpFreeSelectToolClass *klass);
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static void gimp_free_select_tool_init (GimpFreeSelectTool *free_select);
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static void gimp_free_select_tool_finalize (GObject *object);
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static void gimp_free_select_tool_button_press (GimpTool *tool,
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GdkEventButton *bevent,
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GDisplay *gdisp);
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static void gimp_free_select_tool_button_release (GimpTool *tool,
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GdkEventButton *bevent,
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GDisplay *gdisp);
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static void gimp_free_select_tool_motion (GimpTool *tool,
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GdkEventMotion *mevent,
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GDisplay *gdisp);
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static void gimp_free_select_tool_draw (GimpDrawTool *draw_tool);
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static void gimp_free_select_tool_add_point (GimpFreeSelectTool *free_sel,
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gint x,
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gint y);
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static GimpChannel * scan_convert (GimpImage *gimage,
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gint n_points,
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GimpVector2 *points,
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gint width,
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gint height,
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gboolean antialias);
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static GimpSelectionToolClass *parent_class = NULL;
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static SelectionOptions * free_options = NULL;
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/* public functions */
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void
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gimp_free_select_tool_register (Gimp *gimp)
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{
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tool_manager_register_tool (gimp,
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GIMP_TYPE_FREE_SELECT_TOOL,
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FALSE,
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"gimp:free_select_tool",
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_("Free Select"),
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_("Select hand-drawn regions"),
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_("/Tools/Selection Tools/Free Select"), "F",
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NULL, "tools/free_select.html",
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GIMP_STOCK_TOOL_FREE_SELECT);
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}
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GType
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gimp_free_select_tool_get_type (void)
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{
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static GType tool_type = 0;
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if (! tool_type)
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{
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static const GTypeInfo tool_info =
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{
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sizeof (GimpFreeSelectToolClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gimp_free_select_tool_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GimpFreeSelectTool),
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0, /* n_preallocs */
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(GInstanceInitFunc) gimp_free_select_tool_init,
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};
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tool_type = g_type_register_static (GIMP_TYPE_SELECTION_TOOL,
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"GimpFreeSelectTool",
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&tool_info, 0);
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}
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return tool_type;
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}
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void
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free_select (GimpImage *gimage,
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gint n_points,
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GimpVector2 *points,
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SelectOps op,
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gboolean antialias,
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gboolean feather,
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gdouble feather_radius)
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{
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GimpChannel *mask;
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/* if applicable, replace the current selection */
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/* or insure that a floating selection is anchored down... */
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if (op == SELECTION_REPLACE)
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gimage_mask_clear (gimage);
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else
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gimage_mask_undo (gimage);
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mask = scan_convert (gimage, n_points, points,
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gimage->width, gimage->height, antialias);
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if (mask)
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{
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if (feather)
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gimp_channel_feather (mask, gimp_image_get_mask (gimage),
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feather_radius,
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feather_radius,
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op, 0, 0);
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else
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gimp_channel_combine_mask (gimp_image_get_mask (gimage),
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mask, op, 0, 0);
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g_object_unref (G_OBJECT (mask));
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}
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}
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/* private functions */
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static void
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gimp_free_select_tool_class_init (GimpFreeSelectToolClass *klass)
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{
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GObjectClass *object_class;
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GimpToolClass *tool_class;
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GimpDrawToolClass *draw_tool_class;
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object_class = G_OBJECT_CLASS (klass);
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tool_class = GIMP_TOOL_CLASS (klass);
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draw_tool_class = GIMP_DRAW_TOOL_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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object_class->finalize = gimp_free_select_tool_finalize;
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tool_class->button_press = gimp_free_select_tool_button_press;
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tool_class->button_release = gimp_free_select_tool_button_release;
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tool_class->motion = gimp_free_select_tool_motion;
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draw_tool_class->draw = gimp_free_select_tool_draw;
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}
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static void
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gimp_free_select_tool_init (GimpFreeSelectTool *free_select)
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{
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GimpTool *tool;
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GimpSelectionTool *select_tool;
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tool = GIMP_TOOL (free_select);
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select_tool = GIMP_SELECTION_TOOL (free_select);
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if (! free_options)
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{
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free_options = selection_options_new (GIMP_TYPE_FREE_SELECT_TOOL,
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selection_options_reset);
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tool_manager_register_tool_options (GIMP_TYPE_FREE_SELECT_TOOL,
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(GimpToolOptions *) free_options);
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}
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tool->tool_cursor = GIMP_FREE_SELECT_TOOL_CURSOR;
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tool->scroll_lock = TRUE; /* Do not allow scrolling */
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free_select->points = NULL;
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free_select->num_points = 0;
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free_select->max_segs = 0;
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}
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static void
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gimp_free_select_tool_finalize (GObject *object)
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{
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GimpFreeSelectTool *free_sel;
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free_sel = GIMP_FREE_SELECT_TOOL (object);
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if (free_sel->points)
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{
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g_free (free_sel->points);
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free_sel->points = NULL;
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}
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gimp_free_select_tool_button_press (GimpTool *tool,
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GdkEventButton *bevent,
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GDisplay *gdisp)
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{
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GimpFreeSelectTool *free_sel;
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free_sel = GIMP_FREE_SELECT_TOOL (tool);
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gdk_pointer_grab (gdisp->canvas->window, FALSE,
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GDK_POINTER_MOTION_HINT_MASK |
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GDK_BUTTON1_MOTION_MASK |
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GDK_BUTTON_RELEASE_MASK,
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NULL, NULL, bevent->time);
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tool->state = ACTIVE;
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tool->gdisp = gdisp;
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switch (GIMP_SELECTION_TOOL (tool)->op)
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{
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case SELECTION_MOVE_MASK:
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init_edit_selection (tool, gdisp, bevent, EDIT_MASK_TRANSLATE);
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return;
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case SELECTION_MOVE:
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init_edit_selection (tool, gdisp, bevent, EDIT_MASK_TO_LAYER_TRANSLATE);
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return;
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default:
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break;
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}
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free_sel->num_points = 0;
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gimp_free_select_tool_add_point (free_sel, bevent->x, bevent->y);
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gimp_draw_tool_start (GIMP_DRAW_TOOL (tool),
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gdisp->canvas->window);
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}
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static void
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gimp_free_select_tool_button_release (GimpTool *tool,
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GdkEventButton *bevent,
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GDisplay *gdisp)
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{
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GimpFreeSelectTool *free_sel;
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GimpVector2 *points;
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gint i;
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free_sel = GIMP_FREE_SELECT_TOOL (tool);
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gdk_pointer_ungrab (bevent->time);
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gdk_flush ();
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gimp_draw_tool_stop (GIMP_DRAW_TOOL (tool));
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tool->state = INACTIVE;
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/* First take care of the case where the user "cancels" the action */
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if (! (bevent->state & GDK_BUTTON3_MASK))
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{
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if (free_sel->num_points == 1)
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{
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/* If there is a floating selection, anchor it */
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if (gimp_image_floating_sel (gdisp->gimage))
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floating_sel_anchor (gimp_image_floating_sel (gdisp->gimage));
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/* Otherwise, clear the selection mask */
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else
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gimage_mask_clear (gdisp->gimage);
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gdisplays_flush ();
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return;
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}
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points = g_new (GimpVector2, free_sel->num_points);
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for (i = 0; i < free_sel->num_points; i++)
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{
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gdisplay_untransform_coords_f (gdisp,
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free_sel->points[i].x,
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free_sel->points[i].y,
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&points[i].x,
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&points[i].y,
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FALSE);
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}
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free_select (gdisp->gimage,
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free_sel->num_points, points,
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GIMP_SELECTION_TOOL (tool)->op,
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free_options->antialias,
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free_options->feather,
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free_options->feather_radius);
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g_free (points);
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gdisplays_flush ();
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}
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}
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static void
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gimp_free_select_tool_motion (GimpTool *tool,
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GdkEventMotion *mevent,
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GDisplay *gdisp)
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{
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GimpFreeSelectTool *free_sel;
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GimpSelectionTool *sel_tool;
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GimpDrawTool *draw_tool;
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free_sel = GIMP_FREE_SELECT_TOOL (tool);
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sel_tool = GIMP_SELECTION_TOOL (tool);
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draw_tool = GIMP_DRAW_TOOL (tool);
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/* needed for immediate cursor update on modifier event */
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sel_tool->current_x = mevent->x;
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sel_tool->current_y = mevent->y;
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if (tool->state != ACTIVE)
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return;
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if (sel_tool->op == SELECTION_ANCHOR)
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{
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sel_tool->op = SELECTION_REPLACE;
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gimp_tool_cursor_update (tool, mevent, gdisp);
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}
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gimp_free_select_tool_add_point (free_sel, mevent->x, mevent->y);
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gdk_draw_line (draw_tool->win,
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draw_tool->gc,
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free_sel->points[free_sel->num_points - 2].x,
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free_sel->points[free_sel->num_points - 2].y,
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free_sel->points[free_sel->num_points - 1].x,
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free_sel->points[free_sel->num_points - 1].y);
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}
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static void
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gimp_free_select_tool_draw (GimpDrawTool *draw_tool)
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{
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GimpFreeSelectTool *free_sel;
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gint i;
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free_sel = GIMP_FREE_SELECT_TOOL (draw_tool);
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for (i = 1; i < free_sel->num_points; i++)
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{
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gdk_draw_line (draw_tool->win,
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draw_tool->gc,
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free_sel->points[i - 1].x,
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free_sel->points[i - 1].y,
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free_sel->points[i].x,
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free_sel->points[i].y);
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}
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}
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static void
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gimp_free_select_tool_add_point (GimpFreeSelectTool *free_sel,
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gint x,
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gint y)
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{
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if (free_sel->num_points >= free_sel->max_segs)
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{
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free_sel->max_segs += DEFAULT_MAX_INC;
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free_sel->points = (GdkPoint *)
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g_realloc ((void *) free_sel->points,
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sizeof (GdkPoint) * free_sel->max_segs);
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if (! free_sel->points)
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gimp_fatal_error ("%s(): Unable to reallocate points array",
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G_GNUC_FUNCTION);
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}
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free_sel->points[free_sel->num_points].x = x;
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free_sel->points[free_sel->num_points].y = y;
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free_sel->num_points++;
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}
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static GimpChannel *
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scan_convert (GimpImage *gimage,
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gint n_points,
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GimpVector2 *points,
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gint width,
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gint height,
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gboolean antialias)
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{
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GimpChannel *mask;
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GimpScanConvert *sc;
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sc = gimp_scan_convert_new (width, height, antialias ? SUPERSAMPLE : 1);
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gimp_scan_convert_add_points (sc, n_points, points);
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mask = gimp_scan_convert_to_channel (sc, gimage);
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gimp_scan_convert_free (sc);
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return mask;
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}
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