Files
gimp/app/tools/gimpguidetool.c
Michael Natterer 713e4071b2 Bug 770911 - Move tool should display relative coordinates in statusbar...
...when moving guides

Show relative coordinates when moving guides and sample points, the
cursor display in the statusbar already shows absolute coordinates.
2016-10-01 22:45:51 +02:00

404 lines
14 KiB
C

/* GIMP - The GNU 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpmath/gimpmath.h"
#include "tools-types.h"
#include "core/gimp.h"
#include "core/gimpguide.h"
#include "core/gimpimage.h"
#include "core/gimpimage-guides.h"
#include "display/gimpdisplay.h"
#include "display/gimpdisplayshell.h"
#include "display/gimpdisplayshell-selection.h"
#include "display/gimpdisplayshell-transform.h"
#include "gimpguidetool.h"
#include "gimptoolcontrol.h"
#include "tool_manager.h"
#include "gimp-intl.h"
#define SWAP_ORIENT(orient) ((orient) == GIMP_ORIENTATION_HORIZONTAL ? \
GIMP_ORIENTATION_VERTICAL : \
GIMP_ORIENTATION_HORIZONTAL)
/* local function prototypes */
static void gimp_guide_tool_button_release (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display);
static void gimp_guide_tool_motion (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display);
static void gimp_guide_tool_draw (GimpDrawTool *draw_tool);
static void gimp_guide_tool_start (GimpTool *parent_tool,
GimpDisplay *display,
GimpGuide *guide,
GimpOrientationType orientation);
G_DEFINE_TYPE (GimpGuideTool, gimp_guide_tool, GIMP_TYPE_DRAW_TOOL)
#define parent_class gimp_guide_tool_parent_class
static void
gimp_guide_tool_class_init (GimpGuideToolClass *klass)
{
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpDrawToolClass *draw_tool_class = GIMP_DRAW_TOOL_CLASS (klass);
tool_class->button_release = gimp_guide_tool_button_release;
tool_class->motion = gimp_guide_tool_motion;
draw_tool_class->draw = gimp_guide_tool_draw;
}
static void
gimp_guide_tool_init (GimpGuideTool *guide_tool)
{
GimpTool *tool = GIMP_TOOL (guide_tool);
gimp_tool_control_set_snap_to (tool->control, FALSE);
gimp_tool_control_set_handle_empty_image (tool->control, TRUE);
gimp_tool_control_set_tool_cursor (tool->control,
GIMP_TOOL_CURSOR_MOVE);
gimp_tool_control_set_scroll_lock (tool->control, TRUE);
gimp_tool_control_set_precision (tool->control,
GIMP_CURSOR_PRECISION_PIXEL_BORDER);
guide_tool->guide = NULL;
guide_tool->guide_position = GIMP_GUIDE_POSITION_UNDEFINED;
guide_tool->guide_orientation = GIMP_ORIENTATION_UNKNOWN;
}
static void
gimp_guide_tool_button_release (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display)
{
GimpGuideTool *guide_tool = GIMP_GUIDE_TOOL (tool);
GimpDisplayShell *shell = gimp_display_get_shell (display);
GimpImage *image = gimp_display_get_image (display);
gimp_tool_pop_status (tool, display);
gimp_tool_control_halt (tool->control);
gimp_draw_tool_stop (GIMP_DRAW_TOOL (tool));
if (release_type == GIMP_BUTTON_RELEASE_CANCEL)
{
/* custom guides are moved live */
if (guide_tool->guide_custom)
gimp_image_move_guide (image, guide_tool->guide,
guide_tool->guide_old_position, TRUE);
}
else
{
gint max_position;
if (guide_tool->guide_orientation == GIMP_ORIENTATION_HORIZONTAL)
max_position = gimp_image_get_height (image);
else
max_position = gimp_image_get_width (image);
if (guide_tool->guide_position == GIMP_GUIDE_POSITION_UNDEFINED ||
guide_tool->guide_position < 0 ||
guide_tool->guide_position >= max_position)
{
if (guide_tool->guide)
{
gimp_image_remove_guide (image, guide_tool->guide, TRUE);
guide_tool->guide = NULL;
}
}
else
{
if (guide_tool->guide)
{
/* custom guides are moved live */
if (! guide_tool->guide_custom)
gimp_image_move_guide (image, guide_tool->guide,
guide_tool->guide_position, TRUE);
}
else
{
switch (guide_tool->guide_orientation)
{
case GIMP_ORIENTATION_HORIZONTAL:
guide_tool->guide =
gimp_image_add_hguide (image,
guide_tool->guide_position,
TRUE);
break;
case GIMP_ORIENTATION_VERTICAL:
guide_tool->guide =
gimp_image_add_vguide (image,
guide_tool->guide_position,
TRUE);
break;
default:
g_assert_not_reached ();
}
}
}
gimp_image_flush (image);
}
gimp_display_shell_selection_resume (shell);
guide_tool->guide_position = GIMP_GUIDE_POSITION_UNDEFINED;
guide_tool->guide_orientation = GIMP_ORIENTATION_UNKNOWN;
tool_manager_pop_tool (display->gimp);
g_object_unref (guide_tool);
{
GimpTool *active_tool = tool_manager_get_active (display->gimp);
if (GIMP_IS_DRAW_TOOL (active_tool))
gimp_draw_tool_pause (GIMP_DRAW_TOOL (active_tool));
tool_manager_oper_update_active (display->gimp, coords, state,
TRUE, display);
tool_manager_cursor_update_active (display->gimp, coords, state,
display);
if (GIMP_IS_DRAW_TOOL (active_tool))
gimp_draw_tool_resume (GIMP_DRAW_TOOL (active_tool));
}
}
static void
gimp_guide_tool_motion (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpGuideTool *guide_tool = GIMP_GUIDE_TOOL (tool);
GimpDisplayShell *shell = gimp_display_get_shell (display);
GimpImage *image = gimp_display_get_image (display);
gboolean delete_guide = FALSE;
gint max_position;
gint tx, ty;
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
gimp_display_shell_transform_xy (shell,
coords->x, coords->y,
&tx, &ty);
if (guide_tool->guide_orientation == GIMP_ORIENTATION_HORIZONTAL)
max_position = gimp_image_get_height (image);
else
max_position = gimp_image_get_width (image);
if (tx < 0 || tx >= shell->disp_width ||
ty < 0 || ty >= shell->disp_height)
{
guide_tool->guide_position = GIMP_GUIDE_POSITION_UNDEFINED;
delete_guide = TRUE;
}
else
{
if (guide_tool->guide_orientation == GIMP_ORIENTATION_HORIZONTAL)
guide_tool->guide_position = RINT (coords->y);
else
guide_tool->guide_position = RINT (coords->x);
if (guide_tool->guide_position < 0 ||
guide_tool->guide_position >= max_position)
{
delete_guide = TRUE;
}
}
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
gimp_tool_pop_status (tool, display);
/* custom guides are moved live */
if (guide_tool->guide_custom &&
guide_tool->guide_position != GIMP_GUIDE_POSITION_UNDEFINED)
{
gimp_image_move_guide (image, guide_tool->guide,
CLAMP (guide_tool->guide_position,
0, max_position), TRUE);
}
if (delete_guide)
{
gimp_tool_push_status (tool, display,
guide_tool->guide ?
_("Remove Guide") : _("Cancel Guide"));
}
else if (guide_tool->guide)
{
gimp_tool_push_status_length (tool, display,
_("Move Guide: "),
SWAP_ORIENT (guide_tool->guide_orientation),
guide_tool->guide_position -
guide_tool->guide_old_position,
NULL);
}
else
{
gimp_tool_push_status_length (tool, display,
_("Add Guide: "),
SWAP_ORIENT (guide_tool->guide_orientation),
guide_tool->guide_position,
NULL);
}
}
static void
gimp_guide_tool_draw (GimpDrawTool *draw_tool)
{
GimpGuideTool *guide_tool = GIMP_GUIDE_TOOL (draw_tool);
if (guide_tool->guide_position != GIMP_GUIDE_POSITION_UNDEFINED)
{
/* custom guides are moved live */
if (! guide_tool->guide_custom)
gimp_draw_tool_add_guide (draw_tool,
guide_tool->guide_orientation,
guide_tool->guide_position,
GIMP_GUIDE_STYLE_NONE);
}
}
static void
gimp_guide_tool_start (GimpTool *parent_tool,
GimpDisplay *display,
GimpGuide *guide,
GimpOrientationType orientation)
{
GimpGuideTool *guide_tool;
GimpTool *tool;
guide_tool = g_object_new (GIMP_TYPE_GUIDE_TOOL,
"tool-info", parent_tool->tool_info,
NULL);
tool = GIMP_TOOL (guide_tool);
gimp_display_shell_selection_pause (gimp_display_get_shell (display));
if (guide)
{
guide_tool->guide = guide;
guide_tool->guide_old_position = gimp_guide_get_position (guide);
guide_tool->guide_position = gimp_guide_get_position (guide);
guide_tool->guide_orientation = gimp_guide_get_orientation (guide);
guide_tool->guide_custom = gimp_guide_is_custom (guide);
}
else
{
guide_tool->guide = NULL;
guide_tool->guide_old_position = 0;
guide_tool->guide_position = GIMP_GUIDE_POSITION_UNDEFINED;
guide_tool->guide_orientation = orientation;
guide_tool->guide_custom = FALSE;
}
gimp_tool_set_cursor (tool, display,
GIMP_CURSOR_MOUSE,
GIMP_TOOL_CURSOR_HAND,
GIMP_CURSOR_MODIFIER_MOVE);
tool_manager_push_tool (display->gimp, tool);
tool->display = display;
gimp_tool_control_activate (tool->control);
gimp_draw_tool_start (GIMP_DRAW_TOOL (guide_tool), display);
if (guide_tool->guide)
{
gimp_tool_push_status_length (tool, display,
_("Move Guide: "),
SWAP_ORIENT (guide_tool->guide_orientation),
guide_tool->guide_position -
guide_tool->guide_old_position,
NULL);
}
else
{
gimp_tool_push_status_length (tool, display,
_("Add Guide: "),
SWAP_ORIENT (guide_tool->guide_orientation),
guide_tool->guide_position,
NULL);
}
}
/* public functions */
void
gimp_guide_tool_start_new (GimpTool *parent_tool,
GimpDisplay *display,
GimpOrientationType orientation)
{
g_return_if_fail (GIMP_IS_TOOL (parent_tool));
g_return_if_fail (GIMP_IS_DISPLAY (display));
g_return_if_fail (orientation != GIMP_ORIENTATION_UNKNOWN);
gimp_guide_tool_start (parent_tool, display,
NULL, orientation);
}
void
gimp_guide_tool_start_edit (GimpTool *parent_tool,
GimpDisplay *display,
GimpGuide *guide)
{
g_return_if_fail (GIMP_IS_TOOL (parent_tool));
g_return_if_fail (GIMP_IS_DISPLAY (display));
g_return_if_fail (GIMP_IS_GUIDE (guide));
gimp_guide_tool_start (parent_tool, display,
guide, GIMP_ORIENTATION_UNKNOWN);
}