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6cf34005af
2001-11-28 Michael Natterer <mitch@gimp.org> * app/base/base-types.h: include the new "paint-funcs/paint-funcs-types.h". * app/paint-funcs/Makefile.am * app/paint-funcs/paint-funcs-types.h: new file. Includes "base/base-types.h". * app/paint-funcs/paint-funcs.[ch]: removed the enums here, include "paint-funcs-types.h". * app/widgets/widgets-types.h: include "display/display-types.h" * app/display/display-types.h: include "widgets/widgets-types.h". * app/tools/tools-types.h: include "display/display-types.h" * app/gui/gui-types.h: include "tools/tools-types.h". The order of namespaces/dependencies should be (but is not): (base, paint-funcs) -> (core, file, xcf, pdb) -> (widgets, display) -> tools -> gui * app/path.c: include "tools/tools-types.h". * app/core/Makefile.am * app/core/gimpimage-guides.[ch] * app/core/gimpimage-merge.[ch] * app/core/gimpimage-resize.[ch] * app/core/gimpimage-scale.[ch]: new files. * app/core/gimpimage.[ch]: removed the stuff which is in the new files. Reordered all functions in both the .h and .c files, commented the groups of functions. * app/core/gimpcontainer.c: create the handler_id using a counter, not the address of a pointer, because the address *may* be the same twice, added debugging output. * app/core/gimpviewable.[ch]: added primitive support for getting a preview GdkPixbuf. * app/nav_window.c * app/undo.c * app/undo_history.c * app/core/gimpimage-duplicate.c * app/core/gimpimage-mask.[ch] * app/display/gimpdisplay.c * app/display/gimpdisplayshell-callbacks.c * app/display/gimpdisplayshell-dnd.c * app/display/gimpdisplayshell-render.c * app/display/gimpdisplayshell-scale.c * app/display/gimpdisplayshell-scroll.c * app/gui/image-commands.c * app/gui/info-window.c * app/gui/layers-commands.c * app/gui/palette-import-dialog.c * app/tools/gimpbycolorselecttool.c * app/tools/gimpeditselectiontool.c * app/tools/gimpmeasuretool.c * app/tools/gimpmovetool.c * app/widgets/gimpcontainerview-utils.c * app/xcf/xcf-load.c: changed accordingly, some cleanup. * tools/pdbgen/pdb/guides.pdb * tools/pdbgen/pdb/image.pdb: changed accordingly, reordered functions. * app/plug_in.c: set the labels of the "Repeat" and "Re-Show" menu items to the name of the last plug-in (Fixes #50986). * app/display/gimpdisplayshell.[ch]: set the labels of "Undo" and "Redo" to the resp. undo names. Much simplified the WM icon stuff by removing most code and using gimp_viewable_get_new_preview_pixbuf(). * app/widgets/gimpbrushfactoryview.c: forgot to assign the GQuark returned by gimp_container_add_handler(). * app/pdb/guides_cmds.c * app/pdb/image_cmds.c * libgimp/gimpimage_pdb.[ch]: regenerated.
254 lines
5.6 KiB
C
254 lines
5.6 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 <glib-object.h>
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#include "core-types.h"
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#include "gimp.h"
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#include "gimpimage.h"
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#include "gimpimage-guides.h"
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#include "undo.h"
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#define GUIDE_EPSILON 5
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/* public functions */
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GimpGuide *
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gimp_image_add_hguide (GimpImage *gimage)
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{
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GimpGuide *guide;
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g_return_val_if_fail (GIMP_IS_IMAGE (gimage), NULL);
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guide = g_new (GimpGuide, 1);
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guide->ref_count = 0;
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guide->position = -1;
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guide->guide_ID = gimage->gimp->next_guide_ID++;
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guide->orientation = ORIENTATION_HORIZONTAL;
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gimage->guides = g_list_prepend (gimage->guides, guide);
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return guide;
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}
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GimpGuide *
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gimp_image_add_vguide (GimpImage *gimage)
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{
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GimpGuide *guide;
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g_return_val_if_fail (GIMP_IS_IMAGE (gimage), NULL);
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guide = g_new (GimpGuide, 1);
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guide->ref_count = 0;
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guide->position = -1;
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guide->guide_ID = gimage->gimp->next_guide_ID++;
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guide->orientation = ORIENTATION_VERTICAL;
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gimage->guides = g_list_prepend (gimage->guides, guide);
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return guide;
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}
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void
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gimp_image_add_guide (GimpImage *gimage,
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GimpGuide *guide)
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{
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g_return_if_fail (GIMP_IS_IMAGE (gimage));
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gimage->guides = g_list_prepend (gimage->guides, guide);
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}
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void
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gimp_image_remove_guide (GimpImage *gimage,
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GimpGuide *guide)
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{
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g_return_if_fail (GIMP_IS_IMAGE (gimage));
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gimage->guides = g_list_remove (gimage->guides, guide);
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}
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void
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gimp_image_delete_guide (GimpImage *gimage,
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GimpGuide *guide)
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{
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guide->position = -1;
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g_return_if_fail (GIMP_IS_IMAGE (gimage));
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if (guide->ref_count <= 0)
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{
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gimage->guides = g_list_remove (gimage->guides, guide);
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g_free (guide);
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}
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}
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GimpGuide *
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gimp_image_find_guide (GimpImage *gimage,
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gdouble x,
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gdouble y)
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{
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GList *list;
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GimpGuide *guide;
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g_return_val_if_fail (GIMP_IS_IMAGE (gimage), NULL);
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if (x < 0 || x >= gimage->width ||
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y < 0 || y >= gimage->height)
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{
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return NULL;
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}
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for (list = gimage->guides; list; list = g_list_next (list))
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{
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guide = (GimpGuide *) list->data;
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if (guide->position < 0)
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continue;
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switch (guide->orientation)
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{
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case ORIENTATION_HORIZONTAL:
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if (ABS (guide->position - y) < GUIDE_EPSILON)
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return guide;
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break;
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case ORIENTATION_VERTICAL:
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if (ABS (guide->position - x) < GUIDE_EPSILON)
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return guide;
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break;
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default:
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break;
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}
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}
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return NULL;
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}
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gboolean
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gimp_image_snap_point (GimpImage *gimage,
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gdouble x,
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gdouble y,
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gint *tx,
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gint *ty)
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{
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GList *list;
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GimpGuide *guide;
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gint minxdist, minydist;
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gint dist;
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gboolean snapped = FALSE;
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g_return_val_if_fail (GIMP_IS_IMAGE (gimage), FALSE);
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g_return_val_if_fail (tx != NULL, FALSE);
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g_return_val_if_fail (ty != NULL, FALSE);
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*tx = x;
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*ty = y;
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if (x < 0 || x >= gimage->width ||
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y < 0 || y >= gimage->height)
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{
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return FALSE;
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}
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minxdist = G_MAXINT;
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minydist = G_MAXINT;
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for (list = gimage->guides; list; list = g_list_next (list))
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{
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guide = (GimpGuide *) list->data;
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switch (guide->orientation)
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{
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case ORIENTATION_HORIZONTAL:
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dist = ABS (guide->position - y);
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if (dist < MIN (GUIDE_EPSILON, minydist))
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{
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minydist = dist;
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*ty = guide->position;
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snapped = TRUE;
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}
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break;
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case ORIENTATION_VERTICAL:
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dist = ABS (guide->position - x);
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if (dist < MIN (GUIDE_EPSILON, minxdist))
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{
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minxdist = dist;
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*tx = guide->position;
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snapped = TRUE;
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}
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break;
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default:
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break;
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}
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}
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return snapped;
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}
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gboolean
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gimp_image_snap_rectangle (GimpImage *gimage,
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gdouble x1,
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gdouble y1,
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gdouble x2,
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gdouble y2,
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gint *tx1,
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gint *ty1)
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{
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gint nx1, ny1;
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gint nx2, ny2;
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gboolean snap1, snap2;
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g_return_val_if_fail (GIMP_IS_IMAGE (gimage), FALSE);
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g_return_val_if_fail (tx1 != NULL, FALSE);
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g_return_val_if_fail (ty1 != NULL, FALSE);
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*tx1 = x1;
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*ty1 = y1;
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snap1 = gimp_image_snap_point (gimage, x1, y1, &nx1, &ny1);
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snap2 = gimp_image_snap_point (gimage, x2, y2, &nx2, &ny2);
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if (snap1 || snap2)
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{
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if (x1 != nx1)
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*tx1 = nx1;
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else if (x2 != nx2)
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*tx1 = x1 + (nx2 - x2);
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if (y1 != ny1)
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*ty1 = ny1;
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else if (y2 != ny2)
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*ty1 = y1 + (ny2 - y2);
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}
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return snap1 || snap2;
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}
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