mirror of https://github.com/GNOME/gimp.git
582 lines
14 KiB
C
582 lines
14 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 <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/gimpimage.h"
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#include "core/gimpimage-mask.h"
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#include "core/gimplayer.h"
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#include "display/gimpdisplay.h"
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#include "display/gimpdisplay-ops.h"
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#include "floating_sel.h"
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#include "undo.h"
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#include "gimpeditselectiontool.h"
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#include "gimpmovetool.h"
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#include "tool_manager.h"
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#include "tool_options.h"
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#include "libgimp/gimpintl.h"
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static void gimp_move_tool_class_init (GimpMoveToolClass *klass);
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static void gimp_move_tool_init (GimpMoveTool *move_tool);
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static void move_tool_button_press (GimpTool *tool,
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GdkEventButton *bevent,
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GDisplay *gdisp);
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static void move_tool_button_release (GimpTool *tool,
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GdkEventButton *bevent,
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GDisplay *gdisp);
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static void move_tool_motion (GimpTool *tool,
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GdkEventMotion *mevent,
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GDisplay *gdisp);
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static void move_tool_cursor_update (GimpTool *tool,
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GdkEventMotion *mevent,
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GDisplay *gdisp);
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static void move_tool_control (GimpTool *tool,
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ToolAction tool_action,
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GDisplay *gdisp);
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static void move_create_gc (GDisplay *gdisp);
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/* the move tool options */
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static GimpToolOptions *move_options = NULL;
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/* local variables */
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static GdkGC *move_gc = NULL;
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static GimpToolClass *parent_class = NULL;
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void
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gimp_move_tool_register (Gimp *gimp)
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{
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tool_manager_register_tool (gimp,
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GIMP_TYPE_MOVE_TOOL,
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FALSE,
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"gimp:move_tool",
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_("Move Tool"),
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_("Move layers & selections"),
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N_("/Tools/Transform Tools/Move"), "M",
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NULL, "tools/move.html",
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GIMP_STOCK_TOOL_MOVE);
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}
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GType
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gimp_move_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 (GimpMoveToolClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gimp_move_tool_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GimpMoveTool),
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0, /* n_preallocs */
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(GInstanceInitFunc) gimp_move_tool_init,
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};
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tool_type = g_type_register_static (GIMP_TYPE_TOOL,
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"GimpMoveTool",
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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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static void
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gimp_move_tool_class_init (GimpMoveToolClass *klass)
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{
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GimpToolClass *tool_class;
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tool_class = GIMP_TOOL_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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tool_class->control = move_tool_control;
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tool_class->button_press = move_tool_button_press;
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tool_class->button_release = move_tool_button_release;
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tool_class->motion = move_tool_motion;
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tool_class->cursor_update = move_tool_cursor_update;
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tool_class->arrow_key = gimp_edit_selection_tool_arrow_key;
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}
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static void
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gimp_move_tool_init (GimpMoveTool *move_tool)
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{
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GimpTool *tool;
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tool = GIMP_TOOL (move_tool);
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/* The tool options */
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if (! move_options)
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{
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move_options = tool_options_new ();
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tool_manager_register_tool_options (GIMP_TYPE_MOVE_TOOL,
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(GimpToolOptions *) move_options);
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}
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move_tool->layer = NULL;
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move_tool->guide = NULL;
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move_tool->disp = NULL;
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tool->auto_snap_to = FALSE; /* Don't snap to guides */
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}
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static void
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move_tool_control (GimpTool *tool,
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ToolAction action,
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GDisplay *gdisp)
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{
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GimpMoveTool *move_tool;
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move_tool = GIMP_MOVE_TOOL (tool);
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switch (action)
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{
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case PAUSE:
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break;
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case RESUME:
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if (move_tool->guide)
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gdisplay_draw_guide (gdisp, move_tool->guide, TRUE);
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break;
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case HALT:
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if (move_tool->guide)
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gdisplay_draw_guide (gdisp, move_tool->guide, FALSE);
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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_TOOL_CLASS (parent_class)->control)
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GIMP_TOOL_CLASS (parent_class)->control (tool, action, gdisp);
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}
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static void
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move_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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GimpMoveTool *move;
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GimpLayer *layer;
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GimpGuide *guide;
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gint x, y;
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move = GIMP_MOVE_TOOL (tool);
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tool->gdisp = gdisp;
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move->layer = NULL;
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move->guide = NULL;
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move->disp = NULL;
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gdisplay_untransform_coords (gdisp, bevent->x, bevent->y, &x, &y,
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FALSE, FALSE);
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if (bevent->state & GDK_MOD1_MASK &&
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!gimage_mask_is_empty (gdisp->gimage))
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{
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init_edit_selection (tool, gdisp, bevent, EDIT_MASK_TRANSLATE);
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tool->state = ACTIVE;
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}
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else if (bevent->state & GDK_SHIFT_MASK)
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{
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init_edit_selection (tool, gdisp, bevent, EDIT_LAYER_TRANSLATE);
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tool->state = ACTIVE;
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}
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else
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{
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if (gdisp->draw_guides &&
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(guide = gdisplay_find_guide (gdisp, bevent->x, bevent->y)))
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{
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undo_push_guide (gdisp->gimage, guide);
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gdisplays_expose_guide (gdisp->gimage, guide);
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gimp_image_remove_guide (gdisp->gimage, guide);
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gdisplay_flush (gdisp);
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gimp_image_add_guide (gdisp->gimage, guide);
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move->guide = guide;
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move->disp = gdisp;
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tool->scroll_lock = TRUE;
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tool->state = ACTIVE;
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move_tool_motion (tool, NULL, gdisp);
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}
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else if ((layer = gimp_image_pick_correlate_layer (gdisp->gimage, x, y)))
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{
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/* If there is a floating selection, and this aint it,
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* use the move tool
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*/
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if (gimp_image_floating_sel (gdisp->gimage) &&
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! gimp_layer_is_floating_sel (layer))
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{
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move->layer = gimp_image_floating_sel (gdisp->gimage);
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}
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/* Otherwise, init the edit selection */
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else
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{
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gimp_image_set_active_layer (gdisp->gimage, layer);
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init_edit_selection (tool, gdisp, bevent, EDIT_LAYER_TRANSLATE);
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}
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tool->state = ACTIVE;
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}
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}
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/* if we've got an active tool grab the pointer */
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if (tool->state == ACTIVE)
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{
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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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}
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}
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static void
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move_draw_guide (GDisplay *gdisp,
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GimpGuide *guide)
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{
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gint x1, y1;
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gint x2, y2;
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gint w, h;
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gint x, y;
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if (!move_gc)
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move_create_gc (gdisp);
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if (guide->position == -1)
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return;
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gdisplay_transform_coords (gdisp, gdisp->gimage->width,
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gdisp->gimage->height, &x2, &y2, FALSE);
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w = gdisp->canvas->allocation.width;
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h = gdisp->canvas->allocation.height;
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switch (guide->orientation)
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{
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case ORIENTATION_HORIZONTAL:
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gdisplay_transform_coords (gdisp, 0, guide->position, &x1, &y, FALSE);
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if (x1 < 0) x1 = 0;
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if (x2 > w) x2 = w;
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gdk_draw_line (gdisp->canvas->window, move_gc, x1, y, x2, y);
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break;
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case ORIENTATION_VERTICAL:
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gdisplay_transform_coords (gdisp, guide->position, 0, &x, &y1, FALSE);
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if (y1 < 0) y1 = 0;
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if (y2 > h) y2 = h;
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gdk_draw_line (gdisp->canvas->window, move_gc, x, y1, x, y2);
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break;
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default:
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g_warning ("mdg / BAD FALLTHROUGH");
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break;
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}
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}
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static void
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move_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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GimpMoveTool *move;
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gboolean delete_guide;
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gint x1, y1;
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gint x2, y2;
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move = GIMP_MOVE_TOOL (tool);
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gdk_flush ();
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tool->state = INACTIVE;
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gdk_pointer_ungrab (bevent->time);
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if (move->guide)
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{
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tool->scroll_lock = FALSE;
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delete_guide = FALSE;
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gdisplay_untransform_coords (gdisp, 0, 0, &x1, &y1, FALSE, FALSE);
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gdisplay_untransform_coords (gdisp, gdisp->disp_width, gdisp->disp_height,
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&x2, &y2, FALSE, FALSE);
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if (x1 < 0) x1 = 0;
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if (y1 < 0) y1 = 0;
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if (x2 > gdisp->gimage->width) x2 = gdisp->gimage->width;
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if (y2 > gdisp->gimage->height) y2 = gdisp->gimage->height;
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switch (move->guide->orientation)
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{
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case ORIENTATION_HORIZONTAL:
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if ((move->guide->position < y1) || (move->guide->position > y2))
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delete_guide = TRUE;
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break;
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case ORIENTATION_VERTICAL:
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if ((move->guide->position < x1) || (move->guide->position > x2))
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delete_guide = TRUE;
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break;
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default:
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break;
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}
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gdisplays_expose_guide (gdisp->gimage, move->guide);
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if (delete_guide)
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{
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move_draw_guide (gdisp, move->guide);
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gimp_image_delete_guide (gdisp->gimage, move->guide);
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move->guide = NULL;
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move->disp = NULL;
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}
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else
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{
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move_tool_motion (tool, NULL, gdisp);
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}
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gdisplay_selection_visibility (gdisp, GIMP_SELECTION_RESUME);
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gdisplays_flush ();
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if (move->guide)
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gdisplay_draw_guide (gdisp, move->guide, TRUE);
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}
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else
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{
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/* 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 (move->layer)
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{
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floating_sel_anchor (move->layer);
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gdisplays_flush ();
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}
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}
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}
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}
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static void
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move_tool_motion (GimpTool *tool,
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GdkEventMotion *mevent,
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GDisplay *gdisp)
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{
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GimpMoveTool *move;
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gint x, y;
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move = GIMP_MOVE_TOOL (tool);
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if (move->guide)
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{
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move_draw_guide (gdisp, move->guide);
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if (mevent && mevent->window != gdisp->canvas->window)
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{
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move->guide->position = -1;
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return;
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}
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if (mevent)
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{
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gdisplay_untransform_coords (gdisp, mevent->x, mevent->y,
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&x, &y, TRUE, FALSE);
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if (move->guide->orientation == ORIENTATION_HORIZONTAL)
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move->guide->position = y;
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else
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move->guide->position = x;
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move_draw_guide (gdisp, move->guide);
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}
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}
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}
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static void
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move_tool_cursor_update (GimpTool *tool,
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GdkEventMotion *mevent,
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GDisplay *gdisp)
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{
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GimpMoveTool *move;
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GimpGuide *guide;
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GimpLayer *layer;
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gint x, y;
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move = GIMP_MOVE_TOOL (tool);
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gdisplay_untransform_coords (gdisp, mevent->x, mevent->y, &x, &y,
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FALSE, FALSE);
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if (mevent->state & GDK_MOD1_MASK &&
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! gimage_mask_is_empty (gdisp->gimage))
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{
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gdisplay_install_tool_cursor (gdisp, GIMP_MOUSE_CURSOR,
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GIMP_RECT_SELECT_TOOL_CURSOR,
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GIMP_CURSOR_MODIFIER_MOVE);
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}
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else if (mevent->state & GDK_SHIFT_MASK)
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{
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gdisplay_install_tool_cursor (gdisp, GIMP_MOUSE_CURSOR,
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GIMP_MOVE_TOOL_CURSOR,
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GIMP_CURSOR_MODIFIER_NONE);
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}
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else
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{
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if (gdisp->draw_guides &&
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(guide = gdisplay_find_guide (gdisp, mevent->x, mevent->y)))
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{
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tool->gdisp = gdisp;
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gdisplay_install_tool_cursor (gdisp, GDK_HAND2,
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GIMP_TOOL_CURSOR_NONE,
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GIMP_CURSOR_MODIFIER_HAND);
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if (tool->state != ACTIVE)
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{
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if (move->guide)
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{
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gdisp = gdisplays_check_valid (move->disp, move->disp->gimage);
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if (gdisp)
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gdisplay_draw_guide (gdisp, move->guide, FALSE);
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}
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gdisp = gdisp;
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gdisplay_draw_guide (gdisp, guide, TRUE);
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move->guide = guide;
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move->disp = gdisp;
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}
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}
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else if ((layer = gimp_image_pick_correlate_layer (gdisp->gimage, x, y)))
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{
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/* if there is a floating selection, and this aint it... */
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if (gimp_image_floating_sel (gdisp->gimage) &&
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! gimp_layer_is_floating_sel (layer))
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{
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gdisplay_install_tool_cursor (gdisp, GIMP_MOUSE_CURSOR,
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GIMP_RECT_SELECT_TOOL_CURSOR,
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GIMP_CURSOR_MODIFIER_ANCHOR);
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}
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else if (layer == gimp_image_get_active_layer (gdisp->gimage))
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{
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gdisplay_install_tool_cursor (gdisp, GIMP_MOUSE_CURSOR,
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GIMP_MOVE_TOOL_CURSOR,
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GIMP_CURSOR_MODIFIER_NONE);
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}
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else
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{
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gdisplay_install_tool_cursor (gdisp, GDK_HAND2,
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GIMP_TOOL_CURSOR_NONE,
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GIMP_CURSOR_MODIFIER_HAND);
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}
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}
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else
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{
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gdisplay_install_tool_cursor (gdisp, GIMP_BAD_CURSOR,
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GIMP_MOVE_TOOL_CURSOR,
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GIMP_CURSOR_MODIFIER_NONE);
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}
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}
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}
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|
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static void
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move_create_gc (GDisplay *gdisp)
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{
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if (!move_gc)
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{
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GdkGCValues values;
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values.foreground.pixel = gdisplay_white_pixel (gdisp);
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values.function = GDK_INVERT;
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move_gc = gdk_gc_new_with_values (gdisp->canvas->window, &values,
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GDK_GC_FUNCTION);
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}
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}
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|
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void
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gimp_move_tool_start_hguide (GimpTool *tool,
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GDisplay *gdisp)
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{
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GimpMoveTool *move;
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move = GIMP_MOVE_TOOL (tool);
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gdisplay_selection_visibility (gdisp, GIMP_SELECTION_PAUSE);
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tool->gdisp = gdisp;
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tool->scroll_lock = TRUE;
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|
|
if (move->guide && move->disp && move->disp->gimage)
|
|
gdisplay_draw_guide (move->disp, move->guide, FALSE);
|
|
|
|
move->guide = gimp_image_add_hguide (gdisp->gimage);
|
|
move->disp = gdisp;
|
|
|
|
tool->state = ACTIVE;
|
|
|
|
undo_push_guide (gdisp->gimage, move->guide);
|
|
}
|
|
|
|
void
|
|
gimp_move_tool_start_vguide (GimpTool *tool,
|
|
GDisplay *gdisp)
|
|
{
|
|
GimpMoveTool *move;
|
|
|
|
move = GIMP_MOVE_TOOL (tool);
|
|
|
|
gdisplay_selection_visibility (gdisp, GIMP_SELECTION_PAUSE);
|
|
|
|
tool->gdisp = gdisp;
|
|
tool->scroll_lock = TRUE;
|
|
|
|
if (move->guide && move->disp && move->disp->gimage)
|
|
gdisplay_draw_guide (move->disp, move->guide, FALSE);
|
|
|
|
move->guide = gimp_image_add_vguide (gdisp->gimage);
|
|
move->disp = gdisp;
|
|
|
|
tool->state = ACTIVE;
|
|
|
|
undo_push_guide (gdisp->gimage, move->guide);
|
|
}
|