Gimp/app/tools/gimpmeasuretool.c
Jehan 5ddb853964 app: globally block editing vector and link layers.
Instead of blocking various drawable-editing tools to work on vector or
link layers, per tool (as in commits 38c379cd92 or 36330a271a), let's
have a more generic logic in GimpTool. We will now block the tool
initialization early when it's destructive and tries to work on link or
vector layers.

By default, all tools are set as being destructive, but we can override
this per-class by setting the class' is_destructive flag. For instance,
text and path tools, or the Zoom or Color picker tools, etc. are
non-destructive.
Filter tools also are non-destructive (they may be destructive, but have
their internal code to disable this path on these types of layers).

Source tools are special-cased because we may allow them to be
initialized on a link/vector layer as sources. For this special-case, I
make a second check on gimp_tool_button_press().
2025-10-08 23:21:59 +02:00

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* Measure tool
* Copyright (C) 1999-2003 Sven Neumann <sven@gimp.org>
*
* 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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "core/gimpimage.h"
#include "core/gimpimage-guides.h"
#include "core/gimpimage-undo.h"
#include "core/gimpimage-undo-push.h"
#include "core/gimpprogress.h"
#include "core/gimp-transform-utils.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpwidgets-utils.h"
#include "display/gimpdisplay.h"
#include "display/gimpdisplayshell.h"
#include "display/gimpdisplayshell-appearance.h"
#include "display/gimptoolcompass.h"
#include "display/gimptoolgui.h"
#include "gimpmeasureoptions.h"
#include "gimpmeasuretool.h"
#include "gimptoolcontrol.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_measure_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display);
static void gimp_measure_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *display);
static void gimp_measure_tool_button_press (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonPressType press_type,
GimpDisplay *display);
static void gimp_measure_tool_button_release (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display);
static void gimp_measure_tool_motion (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display);
static void gimp_measure_tool_recalc_matrix (GimpTransformTool *tr_tool);
static gchar * gimp_measure_tool_get_undo_desc (GimpTransformTool *tr_tool);
static void gimp_measure_tool_compass_changed (GimpToolWidget *widget,
GimpMeasureTool *measure);
static void gimp_measure_tool_compass_response(GimpToolWidget *widget,
gint response_id,
GimpMeasureTool *measure);
static void gimp_measure_tool_compass_status (GimpToolWidget *widget,
const gchar *status,
GimpMeasureTool *measure);
static void gimp_measure_tool_compass_create_guides
(GimpToolWidget *widget,
gint x,
gint y,
gboolean horizontal,
gboolean vertical,
GimpMeasureTool *measure);
static void gimp_measure_tool_start (GimpMeasureTool *measure,
GimpDisplay *display,
const GimpCoords *coords);
static void gimp_measure_tool_halt (GimpMeasureTool *measure);
static GimpToolGui * gimp_measure_tool_dialog_new (GimpMeasureTool *measure);
static void gimp_measure_tool_dialog_update (GimpMeasureTool *measure,
GimpDisplay *display);
static void gimp_measure_tool_straighten_button_clicked
(GtkWidget *button,
GimpMeasureTool *measure);
G_DEFINE_TYPE (GimpMeasureTool, gimp_measure_tool, GIMP_TYPE_TRANSFORM_TOOL)
#define parent_class gimp_measure_tool_parent_class
void
gimp_measure_tool_register (GimpToolRegisterCallback callback,
gpointer data)
{
(* callback) (GIMP_TYPE_MEASURE_TOOL,
GIMP_TYPE_MEASURE_OPTIONS,
gimp_measure_options_gui,
0,
"gimp-measure-tool",
_("Measure"),
_("Measure Tool: Measure distances and angles"),
N_("_Measure"), "<shift>M",
NULL, GIMP_HELP_TOOL_MEASURE,
GIMP_ICON_TOOL_MEASURE,
data);
}
static void
gimp_measure_tool_class_init (GimpMeasureToolClass *klass)
{
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpTransformToolClass *tr_class = GIMP_TRANSFORM_TOOL_CLASS (klass);
tool_class->control = gimp_measure_tool_control;
tool_class->modifier_key = gimp_measure_tool_modifier_key;
tool_class->button_press = gimp_measure_tool_button_press;
tool_class->button_release = gimp_measure_tool_button_release;
tool_class->motion = gimp_measure_tool_motion;
tool_class->is_destructive = FALSE;
tr_class->recalc_matrix = gimp_measure_tool_recalc_matrix;
tr_class->get_undo_desc = gimp_measure_tool_get_undo_desc;
tr_class->undo_desc = C_("undo-type", "Straighten");
tr_class->progress_text = _("Straightening");
}
static void
gimp_measure_tool_init (GimpMeasureTool *measure)
{
GimpTool *tool = GIMP_TOOL (measure);
gimp_tool_control_set_handle_empty_image (tool->control, TRUE);
gimp_tool_control_set_active_modifiers (tool->control,
GIMP_TOOL_ACTIVE_MODIFIERS_SEPARATE);
gimp_tool_control_set_precision (tool->control,
GIMP_CURSOR_PRECISION_PIXEL_BORDER);
gimp_tool_control_set_cursor (tool->control,
GIMP_CURSOR_CROSSHAIR_SMALL);
gimp_tool_control_set_tool_cursor (tool->control,
GIMP_TOOL_CURSOR_MEASURE);
gimp_draw_tool_set_default_status (GIMP_DRAW_TOOL (tool),
_("Click-Drag to create a line"));
}
static void
gimp_measure_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display)
{
GimpMeasureTool *measure = GIMP_MEASURE_TOOL (tool);
switch (action)
{
case GIMP_TOOL_ACTION_PAUSE:
case GIMP_TOOL_ACTION_RESUME:
break;
case GIMP_TOOL_ACTION_HALT:
gimp_measure_tool_halt (measure);
break;
case GIMP_TOOL_ACTION_COMMIT:
break;
}
GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
}
static void
gimp_measure_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *display)
{
GimpMeasureOptions *options = GIMP_MEASURE_TOOL_GET_OPTIONS (tool);
if (key == gimp_get_toggle_behavior_mask ())
{
switch (options->orientation)
{
case GIMP_COMPASS_ORIENTATION_HORIZONTAL:
g_object_set (options,
"orientation", GIMP_COMPASS_ORIENTATION_VERTICAL,
NULL);
break;
case GIMP_COMPASS_ORIENTATION_VERTICAL:
g_object_set (options,
"orientation", GIMP_COMPASS_ORIENTATION_HORIZONTAL,
NULL);
break;
default:
break;
}
}
}
static void
gimp_measure_tool_button_press (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonPressType press_type,
GimpDisplay *display)
{
GimpMeasureTool *measure = GIMP_MEASURE_TOOL (tool);
GimpMeasureOptions *options = GIMP_MEASURE_TOOL_GET_OPTIONS (tool);
GimpDisplayShell *shell = gimp_display_get_shell (display);
GimpImage *image = gimp_display_get_image (display);
if (tool->display && display != tool->display)
gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display);
if (! measure->widget)
{
measure->supress_guides = TRUE;
gimp_measure_tool_start (measure, display, coords);
gimp_tool_widget_hover (measure->widget, coords, state, TRUE);
}
if (gimp_tool_widget_button_press (measure->widget, coords, time, state,
press_type))
{
measure->grab_widget = measure->widget;
}
/* create the info window if necessary */
if (! measure->gui)
{
if (options->use_info_window ||
! gimp_display_shell_get_show_statusbar (shell))
{
g_set_weak_pointer (&measure->gui,
gimp_measure_tool_dialog_new (measure));
}
}
if (measure->gui)
{
gimp_tool_gui_set_shell (measure->gui, shell);
gimp_tool_gui_set_viewable (measure->gui, GIMP_VIEWABLE (image));
gimp_measure_tool_dialog_update (measure, display);
}
gimp_tool_control_activate (tool->control);
}
static void
gimp_measure_tool_button_release (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display)
{
GimpMeasureTool *measure = GIMP_MEASURE_TOOL (tool);
gimp_tool_control_halt (tool->control);
if (measure->grab_widget)
{
gimp_tool_widget_button_release (measure->grab_widget,
coords, time, state, release_type);
measure->grab_widget = NULL;
}
measure->supress_guides = FALSE;
}
static void
gimp_measure_tool_motion (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpMeasureTool *measure = GIMP_MEASURE_TOOL (tool);
if (measure->grab_widget)
{
gimp_tool_widget_motion (measure->grab_widget, coords, time, state);
}
}
static void
gimp_measure_tool_recalc_matrix (GimpTransformTool *tr_tool)
{
GimpMeasureTool *measure = GIMP_MEASURE_TOOL (tr_tool);
gdouble angle;
if (measure->n_points < 2)
{
tr_tool->transform_valid = FALSE;
return;
}
g_object_get (measure->widget,
"pixel-angle", &angle,
NULL);
gimp_matrix3_identity (&tr_tool->transform);
gimp_transform_matrix_rotate_center (&tr_tool->transform,
measure->x[0], measure->y[0],
angle);
tr_tool->transform_valid = TRUE;
}
static gchar *
gimp_measure_tool_get_undo_desc (GimpTransformTool *tr_tool)
{
GimpMeasureTool *measure = GIMP_MEASURE_TOOL (tr_tool);
GimpCompassOrientation orientation;
gdouble angle;
g_object_get (measure->widget,
"effective-orientation", &orientation,
"pixel-angle", &angle,
NULL);
angle = gimp_rad_to_deg (fabs (angle));
switch (orientation)
{
case GIMP_COMPASS_ORIENTATION_AUTO:
return g_strdup_printf (C_("undo-type",
"Straighten by %-3.3g°"),
angle);
case GIMP_COMPASS_ORIENTATION_HORIZONTAL:
return g_strdup_printf (C_("undo-type",
"Straighten Horizontally by %-3.3g°"),
angle);
case GIMP_COMPASS_ORIENTATION_VERTICAL:
return g_strdup_printf (C_("undo-type",
"Straighten Vertically by %-3.3g°"),
angle);
}
g_return_val_if_reached (NULL);
}
static void
gimp_measure_tool_compass_changed (GimpToolWidget *widget,
GimpMeasureTool *measure)
{
GimpMeasureOptions *options = GIMP_MEASURE_TOOL_GET_OPTIONS (measure);
g_object_get (widget,
"n-points", &measure->n_points,
"x1", &measure->x[0],
"y1", &measure->y[0],
"x2", &measure->x[1],
"y2", &measure->y[1],
"x3", &measure->x[2],
"y3", &measure->y[2],
NULL);
gtk_widget_set_sensitive (options->straighten_button, measure->n_points >= 2);
gimp_measure_tool_dialog_update (measure, GIMP_TOOL (measure)->display);
}
static void
gimp_measure_tool_compass_response (GimpToolWidget *widget,
gint response_id,
GimpMeasureTool *measure)
{
GimpTool *tool = GIMP_TOOL (measure);
if (response_id == GIMP_TOOL_WIDGET_RESPONSE_CANCEL)
gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display);
}
static void
gimp_measure_tool_compass_status (GimpToolWidget *widget,
const gchar *status,
GimpMeasureTool *measure)
{
GimpTool *tool = GIMP_TOOL (measure);
if (! status)
{
/* replace status bar hint by distance and angle */
gimp_measure_tool_dialog_update (measure, tool->display);
}
}
static void
gimp_measure_tool_compass_create_guides (GimpToolWidget *widget,
gint x,
gint y,
gboolean horizontal,
gboolean vertical,
GimpMeasureTool *measure)
{
GimpDisplay *display = GIMP_TOOL (measure)->display;
GimpImage *image = gimp_display_get_image (display);
if (measure->supress_guides)
return;
if (horizontal || vertical)
{
if (horizontal && vertical)
gimp_image_undo_group_start (image,
GIMP_UNDO_GROUP_GUIDE,
_("Add Guides"));
if (horizontal)
gimp_image_add_hguide (image, y, TRUE);
if (vertical)
gimp_image_add_vguide (image, x, TRUE);
if (horizontal && vertical)
gimp_image_undo_group_end (image);
gimp_image_flush (image);
}
}
static void
gimp_measure_tool_start (GimpMeasureTool *measure,
GimpDisplay *display,
const GimpCoords *coords)
{
GimpTool *tool = GIMP_TOOL (measure);
GimpDisplayShell *shell = gimp_display_get_shell (display);
GimpMeasureOptions *options = GIMP_MEASURE_TOOL_GET_OPTIONS (tool);
measure->n_points = 1;
measure->x[0] = coords->x;
measure->y[0] = coords->y;
measure->x[1] = 0;
measure->y[1] = 0;
measure->x[2] = 0;
measure->y[2] = 0;
measure->widget = gimp_tool_compass_new (shell,
options->orientation,
measure->n_points,
measure->x[0],
measure->y[0],
measure->x[1],
measure->y[1],
measure->x[2],
measure->y[2]);
gimp_draw_tool_set_widget (GIMP_DRAW_TOOL (tool), measure->widget);
g_object_bind_property (options, "orientation",
measure->widget, "orientation",
G_BINDING_DEFAULT);
g_signal_connect (measure->widget, "changed",
G_CALLBACK (gimp_measure_tool_compass_changed),
measure);
g_signal_connect (measure->widget, "response",
G_CALLBACK (gimp_measure_tool_compass_response),
measure);
g_signal_connect (measure->widget, "status",
G_CALLBACK (gimp_measure_tool_compass_status),
measure);
g_signal_connect (measure->widget, "create-guides",
G_CALLBACK (gimp_measure_tool_compass_create_guides),
measure);
g_signal_connect (options->straighten_button, "clicked",
G_CALLBACK (gimp_measure_tool_straighten_button_clicked),
measure);
tool->display = display;
gimp_draw_tool_start (GIMP_DRAW_TOOL (measure), display);
}
static void
gimp_measure_tool_halt (GimpMeasureTool *measure)
{
GimpMeasureOptions *options = GIMP_MEASURE_TOOL_GET_OPTIONS (measure);
GimpTool *tool = GIMP_TOOL (measure);
if (options->straighten_button)
{
gtk_widget_set_sensitive (options->straighten_button, FALSE);
g_signal_handlers_disconnect_by_func (
options->straighten_button,
G_CALLBACK (gimp_measure_tool_straighten_button_clicked),
measure);
}
if (tool->display)
gimp_tool_pop_status (tool, tool->display);
if (gimp_draw_tool_is_active (GIMP_DRAW_TOOL (measure)))
gimp_draw_tool_stop (GIMP_DRAW_TOOL (measure));
gimp_draw_tool_set_widget (GIMP_DRAW_TOOL (tool), NULL);
g_clear_object (&measure->widget);
g_clear_object (&measure->gui);
tool->display = NULL;
}
static void
gimp_measure_tool_dialog_update (GimpMeasureTool *measure,
GimpDisplay *display)
{
GimpDisplayShell *shell = gimp_display_get_shell (display);
GimpImage *image = gimp_display_get_image (display);
gint ax, ay;
gint bx, by;
gint pixel_width;
gint pixel_height;
gdouble unit_width;
gdouble unit_height;
gdouble pixel_distance;
gdouble unit_distance;
gdouble inch_distance;
gdouble pixel_angle;
gdouble unit_angle;
gdouble xres;
gdouble yres;
gchar format[128];
gint unit_distance_digits = 0;
gint unit_width_digits;
gint unit_height_digits;
/* calculate distance and angle */
ax = measure->x[1] - measure->x[0];
ay = measure->y[1] - measure->y[0];
if (measure->n_points == 3)
{
bx = measure->x[2] - measure->x[0];
by = measure->y[2] - measure->y[0];
}
else
{
bx = 0;
by = 0;
}
pixel_width = ABS (ax - bx);
pixel_height = ABS (ay - by);
gimp_image_get_resolution (image, &xres, &yres);
unit_width = gimp_pixels_to_units (pixel_width, shell->unit, xres);
unit_height = gimp_pixels_to_units (pixel_height, shell->unit, yres);
pixel_distance = sqrt (SQR (ax - bx) + SQR (ay - by));
inch_distance = sqrt (SQR ((gdouble) (ax - bx) / xres) +
SQR ((gdouble) (ay - by) / yres));
unit_distance = gimp_unit_get_factor (shell->unit) * inch_distance;
g_object_get (measure->widget,
"pixel-angle", &pixel_angle,
"unit-angle", &unit_angle,
NULL);
pixel_angle = fabs (pixel_angle * 180.0 / G_PI);
unit_angle = fabs (unit_angle * 180.0 / G_PI);
/* Compute minimum digits to display accurate values, so that
* every pixel shows a different value in unit.
*/
if (inch_distance)
unit_distance_digits = gimp_unit_get_scaled_digits (shell->unit,
pixel_distance /
inch_distance);
unit_width_digits = gimp_unit_get_scaled_digits (shell->unit, xres);
unit_height_digits = gimp_unit_get_scaled_digits (shell->unit, yres);
if (shell->unit == gimp_unit_pixel ())
{
gimp_tool_replace_status (GIMP_TOOL (measure), display,
"%.1f %s, %.2f\302\260 (%d × %d)",
pixel_distance, _("pixels"), pixel_angle,
pixel_width, pixel_height);
}
else
{
g_snprintf (format, sizeof (format),
"%%.%df %s, %%.2f\302\260 (%%.%df × %%.%df)",
unit_distance_digits,
gimp_unit_get_name (shell->unit),
unit_width_digits,
unit_height_digits);
gimp_tool_replace_status (GIMP_TOOL (measure), display, format,
unit_distance, unit_angle,
unit_width, unit_height);
}
if (measure->gui)
{
gchar buf[128];
/* Distance */
g_snprintf (buf, sizeof (buf), "%.1f", pixel_distance);
gtk_label_set_text (GTK_LABEL (measure->distance_label[0]), buf);
if (shell->unit != gimp_unit_pixel ())
{
g_snprintf (format, sizeof (format), "%%.%df",
unit_distance_digits);
g_snprintf (buf, sizeof (buf), format, unit_distance);
gtk_label_set_text (GTK_LABEL (measure->distance_label[1]), buf);
gtk_label_set_text (GTK_LABEL (measure->unit_label[0]),
gimp_unit_get_name (shell->unit));
}
else
{
gtk_label_set_text (GTK_LABEL (measure->distance_label[1]), NULL);
gtk_label_set_text (GTK_LABEL (measure->unit_label[0]), NULL);
}
/* Angle */
g_snprintf (buf, sizeof (buf), "%.2f", pixel_angle);
gtk_label_set_text (GTK_LABEL (measure->angle_label[0]), buf);
if (fabs (unit_angle - pixel_angle) > 0.01)
{
g_snprintf (buf, sizeof (buf), "%.2f", unit_angle);
gtk_label_set_text (GTK_LABEL (measure->angle_label[1]), buf);
gtk_label_set_text (GTK_LABEL (measure->unit_label[1]), "\302\260");
}
else
{
gtk_label_set_text (GTK_LABEL (measure->angle_label[1]), NULL);
gtk_label_set_text (GTK_LABEL (measure->unit_label[1]), NULL);
}
/* Width */
g_snprintf (buf, sizeof (buf), "%d", pixel_width);
gtk_label_set_text (GTK_LABEL (measure->width_label[0]), buf);
if (shell->unit != gimp_unit_pixel ())
{
g_snprintf (format, sizeof (format), "%%.%df",
unit_width_digits);
g_snprintf (buf, sizeof (buf), format, unit_width);
gtk_label_set_text (GTK_LABEL (measure->width_label[1]), buf);
gtk_label_set_text (GTK_LABEL (measure->unit_label[2]),
gimp_unit_get_name (shell->unit));
}
else
{
gtk_label_set_text (GTK_LABEL (measure->width_label[1]), NULL);
gtk_label_set_text (GTK_LABEL (measure->unit_label[2]), NULL);
}
g_snprintf (buf, sizeof (buf), "%d", pixel_height);
gtk_label_set_text (GTK_LABEL (measure->height_label[0]), buf);
/* Height */
if (shell->unit != gimp_unit_pixel ())
{
g_snprintf (format, sizeof (format), "%%.%df",
unit_height_digits);
g_snprintf (buf, sizeof (buf), format, unit_height);
gtk_label_set_text (GTK_LABEL (measure->height_label[1]), buf);
gtk_label_set_text (GTK_LABEL (measure->unit_label[3]),
gimp_unit_get_name (shell->unit));
}
else
{
gtk_label_set_text (GTK_LABEL (measure->height_label[1]), NULL);
gtk_label_set_text (GTK_LABEL (measure->unit_label[3]), NULL);
}
gimp_tool_gui_show (measure->gui);
}
}
static GimpToolGui *
gimp_measure_tool_dialog_new (GimpMeasureTool *measure)
{
GimpTool *tool = GIMP_TOOL (measure);
GimpDisplayShell *shell;
GimpToolGui *gui;
GtkWidget *grid;
GtkWidget *label;
g_return_val_if_fail (tool->display != NULL, NULL);
shell = gimp_display_get_shell (tool->display);
gui = gimp_tool_gui_new (tool->tool_info,
NULL,
_("Measure Distances and Angles"),
NULL, NULL,
gimp_widget_get_monitor (GTK_WIDGET (shell)),
TRUE,
_("_Close"), GTK_RESPONSE_CLOSE,
NULL);
gimp_tool_gui_set_auto_overlay (gui, TRUE);
gimp_tool_gui_set_focus_on_map (gui, FALSE);
g_signal_connect (gui, "response",
G_CALLBACK (g_object_unref),
NULL);
grid = gtk_grid_new ();
gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
gtk_box_pack_start (GTK_BOX (gimp_tool_gui_get_vbox (gui)), grid,
FALSE, FALSE, 0);
gtk_widget_set_visible (grid, TRUE);
label = gtk_label_new (_("Distance:"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 0, 0, 1, 1);
gtk_widget_set_visible (label, TRUE);
measure->distance_label[0] = label = gtk_label_new ("0.0");
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_label_set_xalign (GTK_LABEL (label), 1.0);
gtk_grid_attach (GTK_GRID (grid), label, 1, 0, 1, 1);
gtk_widget_set_visible (label, TRUE);
label = gtk_label_new (_("pixels"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 2, 0, 1, 1);
gtk_widget_set_visible (label, TRUE);
measure->distance_label[1] = label = gtk_label_new ("0.0");
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_label_set_xalign (GTK_LABEL (label), 1.0);
gtk_grid_attach (GTK_GRID (grid), label, 3, 0, 1, 1);
gtk_widget_set_visible (label, TRUE);
measure->unit_label[0] = label = gtk_label_new (NULL);
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 4, 0, 1, 1);
gtk_widget_set_visible (label, TRUE);
label = gtk_label_new (_("Angle:"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 0, 1, 1, 1);
gtk_widget_set_visible (label, TRUE);
measure->angle_label[0] = label = gtk_label_new ("0.0");
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_label_set_xalign (GTK_LABEL (label), 1.0);
gtk_grid_attach (GTK_GRID (grid), label, 1, 1, 1, 1);
gtk_widget_set_visible (label, TRUE);
label = gtk_label_new ("\302\260");
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 2, 1, 1, 1);
gtk_widget_set_visible (label, TRUE);
measure->angle_label[1] = label = gtk_label_new (NULL);
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_label_set_xalign (GTK_LABEL (label), 1.0);
gtk_grid_attach (GTK_GRID (grid), label, 3, 1, 1, 1);
gtk_widget_set_visible (label, TRUE);
measure->unit_label[1] = label = gtk_label_new (NULL);
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 4, 1, 1, 1);
gtk_widget_set_visible (label, TRUE);
label = gtk_label_new (_("Width:"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 0, 2, 1, 1);
gtk_widget_set_visible (label, TRUE);
measure->width_label[0] = label = gtk_label_new ("0.0");
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_label_set_xalign (GTK_LABEL (label), 1.0);
gtk_grid_attach (GTK_GRID (grid), label, 1, 2, 1, 1);
gtk_widget_set_visible (label, TRUE);
label = gtk_label_new (_("pixels"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 2, 2, 1, 1);
gtk_widget_set_visible (label, TRUE);
measure->width_label[1] = label = gtk_label_new ("0.0");
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_label_set_xalign (GTK_LABEL (label), 1.0);
gtk_grid_attach (GTK_GRID (grid), label, 3, 2, 1, 1);
gtk_widget_set_visible (label, TRUE);
measure->unit_label[2] = label = gtk_label_new (NULL);
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 4, 2, 1, 1);
gtk_widget_set_visible (label, TRUE);
label = gtk_label_new (_("Height:"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 0, 3, 1, 1);
gtk_widget_set_visible (label, TRUE);
measure->height_label[0] = label = gtk_label_new ("0.0");
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_label_set_xalign (GTK_LABEL (label), 1.0);
gtk_grid_attach (GTK_GRID (grid), label, 1, 3, 1, 1);
gtk_widget_set_visible (label, TRUE);
label = gtk_label_new (_("pixels"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 2, 3, 1, 1);
gtk_widget_set_visible (label, TRUE);
measure->height_label[1] = label = gtk_label_new ("0.0");
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_label_set_xalign (GTK_LABEL (label), 1.0);
gtk_grid_attach (GTK_GRID (grid), label, 3, 3, 1, 1);
gtk_widget_set_visible (label, TRUE);
measure->unit_label[3] = label = gtk_label_new (NULL);
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 4, 3, 1, 1);
gtk_widget_set_visible (label, TRUE);
return gui;
}
static void
gimp_measure_tool_straighten_button_clicked (GtkWidget *button,
GimpMeasureTool *measure)
{
GimpTool *tool = GIMP_TOOL (measure);
GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (measure);
if (gimp_transform_tool_transform (tr_tool, tool->display))
gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display);
}