mirror of https://github.com/GNOME/gimp.git
258 lines
8.9 KiB
C
258 lines
8.9 KiB
C
/* GIMP - The GNU 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 3 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, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <string.h>
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libgimpwidgets/gimpwidgets.h"
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#include "tools-types.h"
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#include "core/gimpdrawable-transform.h"
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#include "core/gimpimage.h"
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#include "core/gimpitem-linked.h"
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#include "core/gimplayer.h"
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#include "core/gimplayermask.h"
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#include "core/gimppickable.h"
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#include "widgets/gimphelp-ids.h"
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#include "display/gimpdisplay.h"
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#include "gimpflipoptions.h"
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#include "gimpfliptool.h"
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#include "gimptoolcontrol.h"
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#include "gimp-intl.h"
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/* local function prototypes */
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static void gimp_flip_tool_modifier_key (GimpTool *tool,
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GdkModifierType key,
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gboolean press,
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GdkModifierType state,
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GimpDisplay *display);
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static void gimp_flip_tool_cursor_update (GimpTool *tool,
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const GimpCoords *coords,
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GdkModifierType state,
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GimpDisplay *display);
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static gchar * gimp_flip_tool_get_undo_desc (GimpTransformTool *tool);
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static TileManager * gimp_flip_tool_transform (GimpTransformTool *tool,
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GimpItem *item,
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TileManager *orig_tiles,
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gint orig_offset_x,
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gint orig_offset_y,
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gint *new_offset_x,
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gint *new_offset_y);
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G_DEFINE_TYPE (GimpFlipTool, gimp_flip_tool, GIMP_TYPE_TRANSFORM_TOOL)
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#define parent_class gimp_flip_tool_parent_class
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void
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gimp_flip_tool_register (GimpToolRegisterCallback callback,
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gpointer data)
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{
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(* callback) (GIMP_TYPE_FLIP_TOOL,
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GIMP_TYPE_FLIP_OPTIONS,
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gimp_flip_options_gui,
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GIMP_CONTEXT_BACKGROUND_MASK,
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"gimp-flip-tool",
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_("Flip"),
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_("Flip Tool: "
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"Reverse the layer, selection or path horizontally or vertically"),
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N_("_Flip"), "<shift>F",
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NULL, GIMP_HELP_TOOL_FLIP,
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GIMP_STOCK_TOOL_FLIP,
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data);
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}
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static void
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gimp_flip_tool_class_init (GimpFlipToolClass *klass)
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{
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GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
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GimpTransformToolClass *trans_class = GIMP_TRANSFORM_TOOL_CLASS (klass);
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tool_class->modifier_key = gimp_flip_tool_modifier_key;
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tool_class->cursor_update = gimp_flip_tool_cursor_update;
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trans_class->get_undo_desc = gimp_flip_tool_get_undo_desc;
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trans_class->transform = gimp_flip_tool_transform;
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}
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static void
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gimp_flip_tool_init (GimpFlipTool *flip_tool)
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{
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GimpTool *tool = GIMP_TOOL (flip_tool);
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gimp_tool_control_set_snap_to (tool->control, FALSE);
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gimp_tool_control_set_precision (tool->control,
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GIMP_CURSOR_PRECISION_PIXEL_CENTER);
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gimp_tool_control_set_cursor (tool->control, GIMP_CURSOR_MOUSE);
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gimp_tool_control_set_toggle_cursor (tool->control, GIMP_CURSOR_MOUSE);
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gimp_tool_control_set_tool_cursor (tool->control,
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GIMP_TOOL_CURSOR_FLIP_HORIZONTAL);
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gimp_tool_control_set_toggle_tool_cursor (tool->control,
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GIMP_TOOL_CURSOR_FLIP_VERTICAL);
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}
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static void
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gimp_flip_tool_modifier_key (GimpTool *tool,
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GdkModifierType key,
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gboolean press,
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GdkModifierType state,
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GimpDisplay *display)
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{
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GimpFlipOptions *options = GIMP_FLIP_TOOL_GET_OPTIONS (tool);
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if (key == GDK_CONTROL_MASK)
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{
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switch (options->flip_type)
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{
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case GIMP_ORIENTATION_HORIZONTAL:
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g_object_set (options,
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"flip-type", GIMP_ORIENTATION_VERTICAL,
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NULL);
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break;
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case GIMP_ORIENTATION_VERTICAL:
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g_object_set (options,
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"flip-type", GIMP_ORIENTATION_HORIZONTAL,
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NULL);
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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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}
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static void
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gimp_flip_tool_cursor_update (GimpTool *tool,
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const GimpCoords *coords,
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GdkModifierType state,
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GimpDisplay *display)
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{
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GimpFlipOptions *options = GIMP_FLIP_TOOL_GET_OPTIONS (tool);
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GimpCursorModifier modifier = GIMP_CURSOR_MODIFIER_BAD;
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GimpImage *image = gimp_display_get_image (display);
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if (gimp_image_coords_in_active_pickable (image, coords,
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FALSE, TRUE))
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{
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modifier = GIMP_CURSOR_MODIFIER_NONE;
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}
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gimp_tool_control_set_cursor_modifier (tool->control, modifier);
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gimp_tool_control_set_toggle_cursor_modifier (tool->control, modifier);
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gimp_tool_control_set_toggled (tool->control,
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options->flip_type ==
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GIMP_ORIENTATION_VERTICAL);
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GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
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}
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static gchar *
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gimp_flip_tool_get_undo_desc (GimpTransformTool *tr_tool)
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{
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GimpFlipOptions *options = GIMP_FLIP_TOOL_GET_OPTIONS (tr_tool);
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switch (options->flip_type)
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{
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case GIMP_ORIENTATION_HORIZONTAL:
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return g_strdup (C_("undo-type", "Flip horizontally"));
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case GIMP_ORIENTATION_VERTICAL:
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return g_strdup (C_("undo-type", "Flip vertically"));
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default:
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/* probably this is not actually reached today, but
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* could be if someone defined FLIP_DIAGONAL, say...
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*/
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return g_strdup (C_("undo-desc", "Flip"));
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}
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}
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static TileManager *
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gimp_flip_tool_transform (GimpTransformTool *trans_tool,
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GimpItem *active_item,
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TileManager *orig_tiles,
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gint orig_offset_x,
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gint orig_offset_y,
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gint *new_offset_x,
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gint *new_offset_y)
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{
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GimpFlipOptions *options = GIMP_FLIP_TOOL_GET_OPTIONS (trans_tool);
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GimpContext *context = GIMP_CONTEXT (options);
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gdouble axis = 0.0;
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TileManager *ret = NULL;
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switch (options->flip_type)
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{
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case GIMP_ORIENTATION_HORIZONTAL:
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axis = ((gdouble) trans_tool->x1 +
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(gdouble) (trans_tool->x2 - trans_tool->x1) / 2.0);
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break;
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case GIMP_ORIENTATION_VERTICAL:
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axis = ((gdouble) trans_tool->y1 +
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(gdouble) (trans_tool->y2 - trans_tool->y1) / 2.0);
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break;
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default:
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break;
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}
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if (gimp_item_get_linked (active_item))
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gimp_item_linked_flip (active_item, context, options->flip_type, axis,
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FALSE);
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if (orig_tiles)
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{
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/* this happens when transforming a selection cut out of a
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* normal drawable, or the selection
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*/
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ret = gimp_drawable_transform_tiles_flip (GIMP_DRAWABLE (active_item),
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context,
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orig_tiles,
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orig_offset_x,
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orig_offset_y,
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options->flip_type, axis,
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FALSE,
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new_offset_x,
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new_offset_y);
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}
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else
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{
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/* this happens for entire drawables, paths and layer groups */
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gimp_item_flip (active_item, context, options->flip_type, axis, FALSE);
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}
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return ret;
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}
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