gimp/app/tools/gimpmovetool.c

688 lines
21 KiB
C

/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdlib.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "core/gimpimage.h"
#include "core/gimpimage-guides.h"
#include "core/gimpimage-mask.h"
#include "core/gimplayer.h"
#include "core/gimplayer-floating-sel.h"
#include "core/gimptoolinfo.h"
#include "display/gimpdisplay.h"
#include "display/gimpdisplay-foreach.h"
#include "display/gimpdisplayshell.h"
#include "display/gimpdisplayshell-appearance.h"
#include "display/gimpdisplayshell-transform.h"
#include "widgets/gimpwidgets-utils.h"
#include "gimpeditselectiontool.h"
#include "gimpmoveoptions.h"
#include "gimpmovetool.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_move_tool_class_init (GimpMoveToolClass *klass);
static void gimp_move_tool_init (GimpMoveTool *move_tool);
static void gimp_move_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *gdisp);
static void gimp_move_tool_button_press (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp);
static void gimp_move_tool_button_release (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp);
static void gimp_move_tool_motion (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp);
static void gimp_move_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *gdisp);
static void gimp_move_tool_cursor_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *gdisp);
static void gimp_move_tool_draw (GimpDrawTool *draw_tool);
static void gimp_move_tool_start_guide (GimpTool *tool,
GimpDisplay *gdisp,
GimpOrientationType orientation);
static GimpDrawToolClass *parent_class = NULL;
void
gimp_move_tool_register (GimpToolRegisterCallback callback,
gpointer data)
{
(* callback) (GIMP_TYPE_MOVE_TOOL,
GIMP_TYPE_MOVE_OPTIONS,
gimp_move_options_gui,
FALSE,
"gimp-move-tool",
_("Move"),
_("Move layers & selections"),
N_("/Tools/Transform Tools/Move"), "M",
NULL, "tools/move.html",
GIMP_STOCK_TOOL_MOVE,
data);
}
GType
gimp_move_tool_get_type (void)
{
static GType tool_type = 0;
if (! tool_type)
{
static const GTypeInfo tool_info =
{
sizeof (GimpMoveToolClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_move_tool_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpMoveTool),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_move_tool_init,
};
tool_type = g_type_register_static (GIMP_TYPE_DRAW_TOOL,
"GimpMoveTool",
&tool_info, 0);
}
return tool_type;
}
static void
gimp_move_tool_class_init (GimpMoveToolClass *klass)
{
GimpToolClass *tool_class;
GimpDrawToolClass *draw_tool_class;
tool_class = GIMP_TOOL_CLASS (klass);
draw_tool_class = GIMP_DRAW_TOOL_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
tool_class->control = gimp_move_tool_control;
tool_class->button_press = gimp_move_tool_button_press;
tool_class->button_release = gimp_move_tool_button_release;
tool_class->motion = gimp_move_tool_motion;
tool_class->arrow_key = gimp_edit_selection_tool_arrow_key;
tool_class->modifier_key = gimp_move_tool_modifier_key;
tool_class->cursor_update = gimp_move_tool_cursor_update;
draw_tool_class->draw = gimp_move_tool_draw;
}
static void
gimp_move_tool_init (GimpMoveTool *move_tool)
{
GimpTool *tool;
tool = GIMP_TOOL (move_tool);
move_tool->layer = NULL;
move_tool->guide = NULL;
move_tool->guide_disp = NULL;
move_tool->moving_guide = FALSE;
move_tool->guide_position = -1;
move_tool->guide_orientation = GIMP_ORIENTATION_UNKNOWN;
gimp_tool_control_set_snap_to (tool->control, FALSE);
gimp_tool_control_set_handles_empty_image (tool->control, TRUE);
gimp_tool_control_set_tool_cursor (tool->control,
GIMP_MOVE_TOOL_CURSOR);
}
static void
gimp_move_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *gdisp)
{
GimpMoveTool *move_tool;
move_tool = GIMP_MOVE_TOOL (tool);
switch (action)
{
case PAUSE:
break;
case RESUME:
if (move_tool->guide)
gimp_display_shell_draw_guide (GIMP_DISPLAY_SHELL (gdisp->shell),
move_tool->guide, TRUE);
break;
case HALT:
if (move_tool->guide)
gimp_display_shell_draw_guide (GIMP_DISPLAY_SHELL (gdisp->shell),
move_tool->guide, FALSE);
break;
default:
break;
}
GIMP_TOOL_CLASS (parent_class)->control (tool, action, gdisp);
}
static void
gimp_move_tool_button_press (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpDisplayShell *shell;
GimpMoveTool *move;
GimpMoveOptions *options;
GimpLayer *layer;
GimpGuide *guide;
shell = GIMP_DISPLAY_SHELL (gdisp->shell);
move = GIMP_MOVE_TOOL (tool);
options = GIMP_MOVE_OPTIONS (tool->tool_info->tool_options);
tool->gdisp = gdisp;
move->layer = NULL;
move->guide = NULL;
move->guide_disp = NULL;
move->moving_guide = FALSE;
if (options->move_mask && ! gimp_image_mask_is_empty (gdisp->gimage))
{
init_edit_selection (tool, gdisp, coords, EDIT_MASK_TRANSLATE);
gimp_tool_control_activate (tool->control);
}
else if (options->move_current)
{
init_edit_selection (tool, gdisp, coords, EDIT_LAYER_TRANSLATE);
gimp_tool_control_activate (tool->control);
}
else
{
if (gimp_display_shell_get_show_guides (shell) &&
(guide = gimp_image_find_guide (gdisp->gimage, coords->x, coords->y)))
{
move->guide = guide;
move->guide_disp = gdisp;
move->moving_guide = TRUE;
move->guide_position = guide->position;
move->guide_orientation = guide->orientation;
gimp_tool_control_set_scroll_lock (tool->control, TRUE);
gimp_tool_control_activate (tool->control);
gimp_display_shell_selection_visibility (shell,
GIMP_SELECTION_PAUSE);
gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), gdisp);
}
else if ((layer = gimp_image_pick_correlate_layer (gdisp->gimage,
coords->x,
coords->y)))
{
/* If there is a floating selection, and this aint it,
* use the move tool
*/
if (gimp_image_floating_sel (gdisp->gimage) &&
! gimp_layer_is_floating_sel (layer))
{
move->layer = gimp_image_floating_sel (gdisp->gimage);
}
/* Otherwise, init the edit selection */
else
{
gimp_image_set_active_layer (gdisp->gimage, layer);
#ifdef __GNUC__
#warning FIXME: gimp_layer_set_linked()
#endif
#if 0
if (state & GDK_SHIFT_MASK)
gimp_layer_set_linked (layer, ! gimp_layer_get_linked (layer));
#endif
init_edit_selection (tool, gdisp, coords, EDIT_LAYER_TRANSLATE);
}
gimp_tool_control_activate (tool->control);
}
}
}
static void
gimp_move_tool_button_release (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpMoveTool *move;
GimpDisplayShell *shell;
move = GIMP_MOVE_TOOL (tool);
shell = GIMP_DISPLAY_SHELL (gdisp->shell);
gimp_tool_control_halt (tool->control);
if (move->moving_guide)
{
gboolean delete_guide = FALSE;
gint x1, y1;
gint x2, y2;
gimp_tool_control_set_scroll_lock (tool->control, FALSE);
gimp_draw_tool_stop (GIMP_DRAW_TOOL (tool));
if (state & GDK_BUTTON3_MASK)
{
move->moving_guide = FALSE;
move->guide_position = -1;
move->guide_orientation = GIMP_ORIENTATION_UNKNOWN;
gimp_display_shell_selection_visibility (shell,
GIMP_SELECTION_RESUME);
return;
}
gimp_display_shell_untransform_xy (shell,
0, 0,
&x1, &y1,
FALSE, FALSE);
gimp_display_shell_untransform_xy (shell,
shell->disp_width, shell->disp_height,
&x2, &y2,
FALSE, FALSE);
if (x1 < 0) x1 = 0;
if (y1 < 0) y1 = 0;
if (x2 > gdisp->gimage->width) x2 = gdisp->gimage->width;
if (y2 > gdisp->gimage->height) y2 = gdisp->gimage->height;
switch (move->guide_orientation)
{
case GIMP_ORIENTATION_HORIZONTAL:
if ((move->guide_position < y1) || (move->guide_position > y2))
delete_guide = TRUE;
break;
case GIMP_ORIENTATION_VERTICAL:
if ((move->guide_position < x1) || (move->guide_position > x2))
delete_guide = TRUE;
break;
default:
break;
}
if (delete_guide)
{
if (move->guide)
{
gimp_image_remove_guide (gdisp->gimage, move->guide, TRUE);
move->guide = NULL;
move->guide_disp = NULL;
}
}
else
{
if (move->guide)
{
gimp_image_move_guide (gdisp->gimage, move->guide,
move->guide_position, TRUE);
}
else
{
switch (move->guide_orientation)
{
case GIMP_ORIENTATION_HORIZONTAL:
move->guide = gimp_image_add_hguide (gdisp->gimage,
move->guide_position,
TRUE);
break;
case GIMP_ORIENTATION_VERTICAL:
move->guide = gimp_image_add_vguide (gdisp->gimage,
move->guide_position,
TRUE);
break;
default:
g_assert_not_reached ();
}
move->guide_disp = gdisp;
}
}
gimp_display_shell_selection_visibility (shell, GIMP_SELECTION_RESUME);
gimp_image_flush (gdisp->gimage);
if (move->guide)
gimp_display_shell_draw_guide (shell, move->guide, TRUE);
move->moving_guide = FALSE;
move->guide_position = -1;
move->guide_orientation = GIMP_ORIENTATION_UNKNOWN;
}
else
{
/* Take care of the case where the user "cancels" the action */
if (! (state & GDK_BUTTON3_MASK))
{
if (move->layer)
{
floating_sel_anchor (move->layer);
gimp_image_flush (gdisp->gimage);
}
}
}
}
static void
gimp_move_tool_motion (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpMoveTool *move;
GimpDisplayShell *shell;
move = GIMP_MOVE_TOOL (tool);
shell = GIMP_DISPLAY_SHELL (gdisp->shell);
if (move->moving_guide)
{
gint tx, ty;
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
gimp_display_shell_transform_xy (shell,
coords->x, coords->y,
&tx, &ty,
FALSE);
if (tx < 0 || tx >= shell->disp_width ||
ty < 0 || ty >= shell->disp_height)
{
move->guide_position = -1;
}
else
{
if (move->guide_orientation == GIMP_ORIENTATION_HORIZONTAL)
move->guide_position = ROUND (coords->y);
else
move->guide_position = ROUND (coords->x);
}
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
}
}
static void
gimp_move_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpMoveOptions *options;
options = GIMP_MOVE_OPTIONS (tool->tool_info->tool_options);
if (key == GDK_CONTROL_MASK)
{
g_object_set (options,
"move-current", ! options->move_current,
NULL);
}
else if (key == GDK_MOD1_MASK)
{
g_object_set (options,
"move-mask", ! options->move_mask,
NULL);
}
}
static void
gimp_move_tool_cursor_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpDisplayShell *shell;
GimpMoveTool *move;
GimpMoveOptions *options;
GimpLayer *layer;
GimpGuide *guide;
shell = GIMP_DISPLAY_SHELL (gdisp->shell);
move = GIMP_MOVE_TOOL (tool);
options = GIMP_MOVE_OPTIONS (tool->tool_info->tool_options);
if (options->move_mask && ! gimp_image_mask_is_empty (gdisp->gimage))
{
gimp_tool_set_cursor (tool, gdisp,
GIMP_MOUSE_CURSOR,
GIMP_RECT_SELECT_TOOL_CURSOR,
GIMP_CURSOR_MODIFIER_MOVE);
}
else if (options->move_current)
{
gimp_tool_set_cursor (tool, gdisp,
GIMP_MOUSE_CURSOR,
GIMP_MOVE_TOOL_CURSOR,
GIMP_CURSOR_MODIFIER_NONE);
}
else
{
if (gimp_display_shell_get_show_guides (shell) &&
(guide = gimp_image_find_guide (gdisp->gimage, coords->x, coords->y)))
{
gimp_tool_set_cursor (tool, gdisp,
GDK_HAND2,
GIMP_TOOL_CURSOR_NONE,
GIMP_CURSOR_MODIFIER_HAND);
if (! gimp_tool_control_is_active (tool->control))
{
if (move->guide)
{
GimpDisplay *old_guide_gdisp;
old_guide_gdisp =
gdisplays_check_valid (move->guide_disp,
move->guide_disp->gimage);
if (old_guide_gdisp)
{
GimpDisplayShell *shell;
shell = GIMP_DISPLAY_SHELL (old_guide_gdisp->shell);
gimp_display_shell_draw_guide (shell, move->guide, FALSE);
}
}
gimp_display_shell_draw_guide (GIMP_DISPLAY_SHELL (gdisp->shell),
guide, TRUE);
move->guide = guide;
move->guide_disp = gdisp;
}
}
else if ((layer = gimp_image_pick_correlate_layer (gdisp->gimage,
coords->x, coords->y)))
{
/* if there is a floating selection, and this aint it... */
if (gimp_image_floating_sel (gdisp->gimage) &&
! gimp_layer_is_floating_sel (layer))
{
gimp_tool_set_cursor (tool, gdisp,
GIMP_MOUSE_CURSOR,
GIMP_RECT_SELECT_TOOL_CURSOR,
GIMP_CURSOR_MODIFIER_ANCHOR);
}
else if (layer == gimp_image_get_active_layer (gdisp->gimage))
{
gimp_tool_set_cursor (tool, gdisp,
GIMP_MOUSE_CURSOR,
GIMP_MOVE_TOOL_CURSOR,
GIMP_CURSOR_MODIFIER_NONE);
}
else
{
gimp_tool_set_cursor (tool, gdisp,
GDK_HAND2,
GIMP_TOOL_CURSOR_NONE,
GIMP_CURSOR_MODIFIER_HAND);
}
}
else
{
gimp_tool_set_cursor (tool, gdisp,
GIMP_BAD_CURSOR,
GIMP_MOVE_TOOL_CURSOR,
GIMP_CURSOR_MODIFIER_NONE);
}
}
}
static void
gimp_move_tool_draw (GimpDrawTool *draw_tool)
{
GimpMoveTool *move;
GimpTool *tool;
move = GIMP_MOVE_TOOL (draw_tool);
tool = GIMP_TOOL (draw_tool);
if (move->moving_guide && move->guide_position != -1)
{
switch (move->guide_orientation)
{
case GIMP_ORIENTATION_HORIZONTAL:
gimp_draw_tool_draw_line (draw_tool,
0, move->guide_position,
draw_tool->gdisp->gimage->width,
move->guide_position,
FALSE);
break;
case GIMP_ORIENTATION_VERTICAL:
gimp_draw_tool_draw_line (draw_tool,
move->guide_position, 0,
move->guide_position,
draw_tool->gdisp->gimage->height,
FALSE);
break;
default:
g_assert_not_reached ();
}
}
}
void
gimp_move_tool_start_hguide (GimpTool *tool,
GimpDisplay *gdisp)
{
gimp_move_tool_start_guide (tool, gdisp, GIMP_ORIENTATION_HORIZONTAL);
}
void
gimp_move_tool_start_vguide (GimpTool *tool,
GimpDisplay *gdisp)
{
gimp_move_tool_start_guide (tool, gdisp, GIMP_ORIENTATION_VERTICAL);
}
static void
gimp_move_tool_start_guide (GimpTool *tool,
GimpDisplay *gdisp,
GimpOrientationType orientation)
{
GimpMoveTool *move;
g_return_if_fail (GIMP_IS_MOVE_TOOL (tool));
g_return_if_fail (GIMP_IS_DISPLAY (gdisp));
move = GIMP_MOVE_TOOL (tool);
gimp_display_shell_selection_visibility (GIMP_DISPLAY_SHELL (gdisp->shell),
GIMP_SELECTION_PAUSE);
tool->gdisp = gdisp;
gimp_tool_control_activate (tool->control);
gimp_tool_control_set_scroll_lock (tool->control, TRUE);
if (move->guide && move->guide_disp)
gimp_display_shell_draw_guide (GIMP_DISPLAY_SHELL (move->guide_disp->shell),
move->guide, FALSE);
move->guide = NULL;
move->guide_disp = NULL;
move->moving_guide = TRUE;
move->guide_position = -1;
move->guide_orientation = orientation;
gimp_tool_set_cursor (tool, gdisp,
GDK_HAND2,
GIMP_TOOL_CURSOR_NONE,
GIMP_CURSOR_MODIFIER_HAND);
gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), gdisp);
}