Gimp/app/tools/gimpmeasuretool.c
Jehan d493f0537f Issue #8900 and #9923: reimplementing GimpUnit as a proper class.
This fixes all our GObject Introspection issues with GimpUnit which was
both an enum and an int-derived type of user-defined units *completing*
the enum values. GIR clearly didn't like this!

Now GimpUnit is a proper class and units are unique objects, allowing to
compare them with an identity test (i.e. `unit == gimp_unit_pixel ()`
tells us if unit is the pixel unit or not), which makes it easy to use,
just like with int, yet adding also methods, making for nicer
introspected API.

As an aside, this also fixes #10738, by having all the built-in units
retrievable even if libgimpbase had not been properly initialized with
gimp_base_init().
I haven't checked in details how GIR works to introspect, but it looks
like it loads the library to inspect and runs functions, hence
triggering some CRITICALS because virtual methods (supposed to be
initialized with gimp_base_init() run by libgimp) are not set. This new
code won't trigger any critical because the vtable method are now not
necessary, at least for all built-in units.

Note that GimpUnit is still in libgimpbase. It could have been moved to
libgimp in order to avoid any virtual method table (since we need to
keep core and libgimp side's units in sync, PDB is required), but too
many libgimpwidgets widgets were already using GimpUnit. And technically
most of GimpUnit logic doesn't require PDB (only the creation/sync
part). This is one of the reasons why user-created GimpUnit list is
handled and stored differently from other types of objects.

Globally this simplifies the code a lot too and we don't need separate
implementations of various utils for core and libgimp, which means less
prone to errors.
2024-08-02 10:46:38 +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;
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_plural (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_plural (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_plural (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_plural (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);
}