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gimp/app/tools/gimpmeasuretool.c

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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 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 <gegl.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.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/gimpunit.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimptooldialog.h"
#include "widgets/gimpwidgets-utils.h"
#include "display/gimpdisplay.h"
#include "display/gimpdisplayshell.h"
#include "gimpmeasureoptions.h"
#include "gimpmeasuretool.h"
#include "gimptoolcontrol.h"
#include "tools-utils.h"
#include "gimp-intl.h"
#define TARGET 12
#define ARC_RADIUS 30
/* local function prototypes */
static void gimp_measure_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display);
static void gimp_measure_tool_button_press (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
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 gboolean gimp_measure_tool_key_press (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *display);
static void gimp_measure_tool_active_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *display);
static void gimp_measure_tool_cursor_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display);
static void gimp_measure_tool_draw (GimpDrawTool *draw_tool);
static void gimp_measure_tool_halt (GimpMeasureTool *measure);
static gdouble gimp_measure_tool_get_angle (gint dx,
gint dy,
gdouble xres,
gdouble yres);
static GtkWidget * gimp_measure_tool_dialog_new (GimpMeasureTool *measure);
static void gimp_measure_tool_dialog_update (GimpMeasureTool *measure,
GimpDisplay *display);
G_DEFINE_TYPE (GimpMeasureTool, gimp_measure_tool, GIMP_TYPE_DRAW_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_STOCK_TOOL_MEASURE,
data);
}
static void
gimp_measure_tool_class_init (GimpMeasureToolClass *klass)
{
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpDrawToolClass *draw_tool_class = GIMP_DRAW_TOOL_CLASS (klass);
tool_class->control = gimp_measure_tool_control;
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->key_press = gimp_measure_tool_key_press;
tool_class->active_modifier_key = gimp_measure_tool_active_modifier_key;
tool_class->cursor_update = gimp_measure_tool_cursor_update;
draw_tool_class->draw = gimp_measure_tool_draw;
}
static void
gimp_measure_tool_init (GimpMeasureTool *measure_tool)
{
GimpTool *tool = GIMP_TOOL (measure_tool);
gimp_tool_control_set_handle_empty_image (tool->control, TRUE);
gimp_tool_control_set_tool_cursor (tool->control,
GIMP_TOOL_CURSOR_MEASURE);
measure_tool->function = CREATING;
measure_tool->status_help = TRUE;
}
static void
gimp_measure_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display)
{
switch (action)
{
case GIMP_TOOL_ACTION_PAUSE:
case GIMP_TOOL_ACTION_RESUME:
break;
case GIMP_TOOL_ACTION_HALT:
gimp_measure_tool_halt (GIMP_MEASURE_TOOL (tool));
break;
}
GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
}
static void
gimp_measure_tool_button_press (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpMeasureTool *measure = GIMP_MEASURE_TOOL (tool);
GimpMeasureOptions *options = GIMP_MEASURE_TOOL_GET_OPTIONS (tool);
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (display->shell);
gint i;
/* if we are changing displays, pop the statusbar of the old one */
if (gimp_tool_control_is_active (tool->control) && display != tool->display)
{
gimp_tool_pop_status (tool, display);
}
measure->function = CREATING;
measure->mouse_x = coords->x;
measure->mouse_y = coords->y;
if (gimp_tool_control_is_active (tool->control) && display == tool->display)
{
/* if the cursor is in one of the handles,
* the new function will be moving or adding a new point or guide
*/
for (i = 0; i < measure->num_points; i++)
{
if (gimp_draw_tool_on_handle (GIMP_DRAW_TOOL (tool), display,
coords->x,
coords->y,
GIMP_HANDLE_CIRCLE,
measure->x[i],
measure->y[i],
TARGET * 2, TARGET * 2,
GTK_ANCHOR_CENTER,
FALSE))
{
if (state & (GDK_CONTROL_MASK | GDK_MOD1_MASK))
{
GimpGuide *guide;
gboolean create_hguide;
gboolean create_vguide;
create_hguide = ((state & GDK_CONTROL_MASK) &&
(measure->y[i] ==
CLAMP (measure->y[i],
0,
gimp_image_get_height (display->image))));
create_vguide = ((state & GDK_MOD1_MASK) &&
(measure->x[i] ==
CLAMP (measure->x[i],
0,
gimp_image_get_width (display->image))));
if (create_hguide && create_vguide)
gimp_image_undo_group_start (display->image,
GIMP_UNDO_GROUP_GUIDE,
_("Add Guides"));
if (create_hguide)
{
guide = gimp_image_add_hguide (display->image,
measure->y[i],
TRUE);
gimp_image_update_guide (display->image, guide);
}
if (create_vguide)
{
guide = gimp_image_add_vguide (display->image,
measure->x[i],
TRUE);
gimp_image_update_guide (display->image, guide);
}
if (create_hguide && create_vguide)
gimp_image_undo_group_end (display->image);
if (create_hguide || create_vguide)
gimp_image_flush (display->image);
measure->function = GUIDING;
break;
}
measure->function = (state & GDK_SHIFT_MASK) ? ADDING : MOVING;
measure->point = i;
break;
}
}
/* adding to the middle point makes no sense */
if (i == 0 &&
measure->function == ADDING &&
measure->num_points == 3)
{
measure->function = MOVING;
}
/* if the function is still CREATING, we are outside the handles */
if (measure->function == CREATING)
{
if (measure->num_points > 1 && (state & GDK_MOD1_MASK))
{
measure->function = MOVING_ALL;
measure->last_x = coords->x;
measure->last_y = coords->y;
}
}
}
if (measure->function == CREATING)
{
if (gimp_tool_control_is_active (tool->control))
{
gimp_draw_tool_stop (GIMP_DRAW_TOOL (measure));
measure->x[0] = measure->x[1] = measure->x[2] = 0.0;
measure->y[0] = measure->y[1] = measure->y[2] = 0.0;
gimp_measure_tool_dialog_update (measure, display);
}
/* set the first point and go into ADDING mode */
measure->x[0] = coords->x + 0.5;
measure->y[0] = coords->y + 0.5;
measure->point = 0;
measure->num_points = 1;
measure->function = ADDING;
/* set the displaylay */
tool->display = display;
if (gimp_tool_control_is_active (tool->control))
{
gimp_tool_replace_status (tool, display, " ");
}
else
{
gimp_tool_control_activate (tool->control);
}
gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), display);
}
/* create the info window if necessary */
if (! measure->dialog && (options->use_info_window ||
! GTK_WIDGET_VISIBLE (shell->statusbar)))
{
measure->dialog = gimp_measure_tool_dialog_new (measure);
g_object_add_weak_pointer (G_OBJECT (measure->dialog),
(gpointer) &measure->dialog);
}
if (measure->dialog)
gimp_viewable_dialog_set_viewable (GIMP_VIEWABLE_DIALOG (measure->dialog),
GIMP_VIEWABLE (tool->display->image),
GIMP_CONTEXT (options));
}
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);
measure->function = FINISHED;
}
static void
gimp_measure_tool_motion (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpMeasureTool *measure = GIMP_MEASURE_TOOL (tool);
gint dx, dy;
gint i;
gint tmp;
gimp_draw_tool_pause (GIMP_DRAW_TOOL (measure));
measure->mouse_x = coords->x;
measure->mouse_y = coords->y;
/*
* A few comments here, because this routine looks quite weird at first ...
*
* The goal is to keep point 0, called the start point, to be
* always the one in the middle or, if there are only two points,
* the one that is fixed. The angle is then always measured at
* this point.
*/
switch (measure->function)
{
case ADDING:
switch (measure->point)
{
case 0: /* we are adding to the start point */
break;
case 1: /* we are adding to the end point,
make it the new start point */
tmp = measure->x[0];
measure->x[0] = measure->x[1];
measure->x[1] = tmp;
tmp = measure->y[0];
measure->y[0] = measure->y[1];
measure->y[1] = tmp;
break;
case 2: /* we are adding to the third point,
make it the new start point */
measure->x[1] = measure->x[0];
measure->y[1] = measure->y[0];
measure->x[0] = measure->x[2];
measure->y[0] = measure->y[2];
break;
default:
break;
}
measure->num_points = MIN (measure->num_points + 1, 3);
measure->point = measure->num_points - 1;
measure->function = MOVING;
/* no, don't break here! */
case MOVING:
/* if we are moving the start point and only have two,
make it the end point */
if (measure->num_points == 2 && measure->point == 0)
{
tmp = measure->x[0];
measure->x[0] = measure->x[1];
measure->x[1] = tmp;
tmp = measure->y[0];
measure->y[0] = measure->y[1];
measure->y[1] = tmp;
measure->point = 1;
}
i = measure->point;
measure->x[i] = ROUND (coords->x);
measure->y[i] = ROUND (coords->y);
if (state & GDK_CONTROL_MASK)
{
gdouble x = measure->x[i];
gdouble y = measure->y[i];
gimp_tool_motion_constrain (measure->x[0], measure->y[0],
&x, &y,
GIMP_TOOL_CONSTRAIN_15_DEGREES);
measure->x[i] = ROUND (x);
measure->y[i] = ROUND (y);
}
break;
case MOVING_ALL:
dx = ROUND (coords->x) - measure->last_x;
dy = ROUND (coords->y) - measure->last_y;
for (i = 0; i < measure->num_points; i++)
{
measure->x[i] += dx;
measure->y[i] += dy;
}
measure->last_x = ROUND (coords->x);
measure->last_y = ROUND (coords->y);
break;
default:
break;
}
if (measure->function == MOVING)
gimp_measure_tool_dialog_update (measure, display);
gimp_draw_tool_resume (GIMP_DRAW_TOOL (measure));
}
static gboolean
gimp_measure_tool_key_press (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *display)
{
if (display == tool->display)
{
switch (kevent->keyval)
{
case GDK_Escape:
gimp_measure_tool_halt (GIMP_MEASURE_TOOL (tool));
return TRUE;
default:
break;
}
}
return FALSE;
}
static void
gimp_measure_tool_active_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *display)
{
GimpMeasureTool *measure = GIMP_MEASURE_TOOL (tool);
if (key == GDK_CONTROL_MASK && measure->function == MOVING)
{
gdouble x, y;
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
x = measure->mouse_x;
y = measure->mouse_y;
if (press)
gimp_tool_motion_constrain (measure->x[0], measure->y[0],
&x, &y,
GIMP_TOOL_CONSTRAIN_15_DEGREES);
measure->x[measure->point] = ROUND (x);
measure->y[measure->point] = ROUND (y);
gimp_measure_tool_dialog_update (measure, display);
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
}
}
static void
gimp_measure_tool_cursor_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display)
{
GimpMeasureTool *measure = GIMP_MEASURE_TOOL (tool);
gboolean in_handle = FALSE;
GimpCursorType cursor = GIMP_CURSOR_CROSSHAIR_SMALL;
GimpCursorModifier modifier = GIMP_CURSOR_MODIFIER_NONE;
gchar *status = NULL;
gint i;
if (gimp_tool_control_is_active (tool->control) && tool->display == display)
{
for (i = 0; i < measure->num_points; i++)
{
if (gimp_draw_tool_on_handle (GIMP_DRAW_TOOL (tool), display,
coords->x,
coords->y,
GIMP_HANDLE_CIRCLE,
measure->x[i],
measure->y[i],
TARGET * 2, TARGET * 2,
GTK_ANCHOR_CENTER,
FALSE))
{
in_handle = TRUE;
if (state & GDK_CONTROL_MASK)
{
if (state & GDK_MOD1_MASK)
{
cursor = GIMP_CURSOR_CORNER_BOTTOM_RIGHT;
status = gimp_suggest_modifiers (_("Click to place "
"vertical and "
"horizontal guides"),
0,
NULL, NULL, NULL);
}
else
{
cursor = GIMP_CURSOR_SIDE_BOTTOM;
status = gimp_suggest_modifiers (_("Click to place a "
"horizontal guide"),
GDK_MOD1_MASK & ~state,
NULL, NULL, NULL);
}
gimp_tool_replace_status (tool, display, "%s", status);
g_free (status);
measure->status_help = TRUE;
break;
}
if (state & GDK_MOD1_MASK)
{
cursor = GIMP_CURSOR_SIDE_RIGHT;
status = gimp_suggest_modifiers (_("Click to place a "
"vertical guide"),
GDK_CONTROL_MASK & ~state,
NULL, NULL, NULL);
gimp_tool_replace_status (tool, display, "%s", status);
g_free (status);
measure->status_help = TRUE;
break;
}
if ((state & GDK_SHIFT_MASK)
&& ! ((i == 0) && (measure->num_points == 3)))
{
modifier = GIMP_CURSOR_MODIFIER_PLUS;
status = gimp_suggest_modifiers (_("Click-Drag to add a "
"new point"),
(GDK_CONTROL_MASK
| GDK_MOD1_MASK) & ~state,
NULL, NULL, NULL);
}
else
{
modifier = GIMP_CURSOR_MODIFIER_MOVE;
if ((i == 0) && (measure->num_points == 3))
state |= GDK_SHIFT_MASK;
status = gimp_suggest_modifiers (_("Click-Drag to move this "
"point"),
(GDK_SHIFT_MASK
| GDK_CONTROL_MASK
| GDK_MOD1_MASK) & ~state,
NULL, NULL, NULL);
}
gimp_tool_replace_status (tool, display, "%s", status);
g_free (status);
measure->status_help = TRUE;
break;
}
}
if (! in_handle)
{
if ((measure->num_points > 1) && (state & GDK_MOD1_MASK))
{
modifier = GIMP_CURSOR_MODIFIER_MOVE;
gimp_tool_replace_status (tool, display, _("Click-Drag to move "
"all points"));
measure->status_help = TRUE;
}
else if (measure->status_help)
{
if (measure->num_points > 1)
{
/* replace status bar hint by distance and angle */
gimp_measure_tool_dialog_update (measure, display);
}
else
{
gimp_tool_replace_status (tool, display, " ");
}
}
}
}
gimp_tool_control_set_cursor (tool->control, cursor);
gimp_tool_control_set_cursor_modifier (tool->control, modifier);
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
}
static void
gimp_measure_tool_draw (GimpDrawTool *draw_tool)
{
GimpMeasureTool *measure = GIMP_MEASURE_TOOL (draw_tool);
GimpTool *tool = GIMP_TOOL (draw_tool);
gint i;
gint angle1, angle2;
gint draw_arc = 0;
for (i = 0; i < measure->num_points; i++)
{
if (i == 0 && measure->num_points == 3)
{
gimp_draw_tool_draw_handle (draw_tool,
GIMP_HANDLE_CIRCLE,
measure->x[i],
measure->y[i],
TARGET,
TARGET,
GTK_ANCHOR_CENTER,
FALSE);
}
else
{
gimp_draw_tool_draw_handle (draw_tool,
GIMP_HANDLE_CROSS,
measure->x[i],
measure->y[i],
TARGET * 2,
TARGET * 2,
GTK_ANCHOR_CENTER,
FALSE);
}
if (i > 0)
{
gimp_draw_tool_draw_line (draw_tool,
measure->x[0],
measure->y[0],
measure->x[i],
measure->y[i],
FALSE);
/* only draw the arc if the lines are long enough */
if (gimp_draw_tool_calc_distance (draw_tool, tool->display,
measure->x[0],
measure->y[0],
measure->x[i],
measure->y[i]) > ARC_RADIUS)
{
draw_arc++;
}
}
}
if (measure->num_points > 1 && draw_arc == measure->num_points - 1)
{
angle1 = measure->angle2 * 64.0;
angle2 = (measure->angle1 - measure->angle2) * 64.0;
if (angle2 > 11520)
angle2 -= 23040;
if (angle2 < -11520)
angle2 += 23040;
if (angle2 != 0)
{
gimp_draw_tool_draw_arc_by_anchor (draw_tool,
FALSE,
measure->x[0],
measure->y[0],
ARC_RADIUS * 2,
ARC_RADIUS * 2,
angle1, angle2,
GTK_ANCHOR_CENTER,
FALSE);
if (measure->num_points == 2)
{
GimpDisplayShell *shell;
gdouble target;
gdouble arc_radius;
shell = GIMP_DISPLAY_SHELL (tool->display->shell);
target = FUNSCALEX (shell, (TARGET >> 1));
arc_radius = FUNSCALEX (shell, ARC_RADIUS);
gimp_draw_tool_draw_line (draw_tool,
measure->x[0],
measure->y[0],
(measure->x[1] >= measure->x[0] ?
measure->x[0] + arc_radius + target :
measure->x[0] - arc_radius - target),
measure->y[0],
FALSE);
}
}
}
}
static void
gimp_measure_tool_halt (GimpMeasureTool *measure)
{
GimpTool *tool = GIMP_TOOL (measure);
if (measure->dialog)
gtk_widget_destroy (measure->dialog);
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));
if (gimp_tool_control_is_active (tool->control))
gimp_tool_control_halt (tool->control);
}
static gdouble
gimp_measure_tool_get_angle (gint dx,
gint dy,
gdouble xres,
gdouble yres)
{
gdouble angle;
if (dx)
angle = gimp_rad_to_deg (atan (((gdouble) (dy) / yres) /
((gdouble) (dx) / xres)));
else if (dy)
angle = dy > 0 ? 270.0 : 90.0;
else
angle = 180.0;
if (dx > 0)
{
if (dy > 0)
angle = 360.0 - angle;
else
angle = -angle;
}
else
{
angle = 180.0 - angle;
}
return angle;
}
static void
gimp_measure_tool_dialog_update (GimpMeasureTool *measure,
GimpDisplay *display)
{
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (display->shell);
GimpImage *image = display->image;
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 theta1, theta2;
gdouble pixel_angle;
gdouble unit_angle;
gdouble xres;
gdouble yres;
gchar format[128];
/* calculate distance and angle */
ax = measure->x[1] - measure->x[0];
ay = measure->y[1] - measure->y[0];
if (measure->num_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_unit_get_factor (image->gimp, shell->unit) *
pixel_width / xres);
unit_height = (_gimp_unit_get_factor (image->gimp, shell->unit) *
pixel_height / yres);
pixel_distance = sqrt (SQR (ax - bx) + SQR (ay - by));
unit_distance = (_gimp_unit_get_factor (image->gimp, shell->unit) *
sqrt (SQR ((gdouble)(ax - bx) / xres) +
SQR ((gdouble)(ay - by) / yres)));
if (measure->num_points != 3)
bx = ax > 0 ? 1 : -1;
theta1 = gimp_measure_tool_get_angle (ax, ay, 1.0, 1.0);
theta2 = gimp_measure_tool_get_angle (bx, by, 1.0, 1.0);
pixel_angle = fabs (theta1 - theta2);
if (pixel_angle > 180.0)
pixel_angle = fabs (360.0 - pixel_angle);
theta1 = gimp_measure_tool_get_angle (ax, ay, xres, yres);
theta2 = gimp_measure_tool_get_angle (bx, by, xres, yres);
measure->angle1 = theta1;
measure->angle2 = theta2;
unit_angle = fabs (theta1 - theta2);
if (unit_angle > 180.0)
unit_angle = fabs (360.0 - unit_angle);
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)",
_gimp_unit_get_digits (image->gimp, shell->unit),
_gimp_unit_get_plural (image->gimp, shell->unit),
_gimp_unit_get_digits (image->gimp, shell->unit),
_gimp_unit_get_digits (image->gimp, shell->unit));
gimp_tool_replace_status (GIMP_TOOL (measure), display, format,
unit_distance, unit_angle,
unit_width, unit_height);
}
measure->status_help = FALSE;
if (measure->dialog)
{
gchar buf[128];
g_snprintf (format, sizeof (format), "%%.%df",
_gimp_unit_get_digits (image->gimp, shell->unit));
/* 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 (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 (image->gimp, 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 (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 (image->gimp, 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 (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 (image->gimp, 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);
}
if (GTK_WIDGET_VISIBLE (measure->dialog))
gdk_window_show (measure->dialog->window);
else
gtk_widget_show (measure->dialog);
}
}
static GtkWidget *
gimp_measure_tool_dialog_new (GimpMeasureTool *measure)
{
GimpTool *tool = GIMP_TOOL (measure);
GtkWidget *dialog;
GtkWidget *table;
GtkWidget *label;
dialog = gimp_tool_dialog_new (tool->tool_info,
NULL /* tool->display->shell */,
_("Measure Distances and Angles"),
GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
NULL);
gtk_window_set_focus_on_map (GTK_WINDOW (dialog), FALSE);
g_signal_connect (dialog, "response",
G_CALLBACK (gtk_widget_destroy),
NULL);
table = gtk_table_new (4, 5, TRUE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_container_set_border_width (GTK_CONTAINER (table), 6);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (dialog)->vbox), table);
gtk_widget_show (table);
label = gtk_label_new (_("Distance:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 0, 1);
gtk_widget_show (label);
measure->distance_label[0] = label = gtk_label_new ("0.0");
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 1, 2, 0, 1);
gtk_widget_show (label);
label = gtk_label_new (_("pixels"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 2, 3, 0, 1);
gtk_widget_show (label);
measure->distance_label[1] = label = gtk_label_new ("0.0");
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 3, 4, 0, 1);
gtk_widget_show (label);
measure->unit_label[0] = label = gtk_label_new (NULL);
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 4, 5, 0, 1);
gtk_widget_show (label);
label = gtk_label_new (_("Angle:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 1, 2);
gtk_widget_show (label);
measure->angle_label[0] = label = gtk_label_new ("0.0");
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 1, 2, 1, 2);
gtk_widget_show (label);
label = gtk_label_new ("\302\260");
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 2, 3, 1, 2);
gtk_widget_show (label);
measure->angle_label[1] = label = gtk_label_new (NULL);
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 3, 4, 1, 2);
gtk_widget_show (label);
measure->unit_label[1] = label = gtk_label_new (NULL);
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 4, 5, 1, 2);
gtk_widget_show (label);
label = gtk_label_new (_("Width:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 2, 3);
gtk_widget_show (label);
measure->width_label[0] = label = gtk_label_new ("0.0");
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 1, 2, 2, 3);
gtk_widget_show (label);
label = gtk_label_new (_("pixels"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 2, 3, 2, 3);
gtk_widget_show (label);
measure->width_label[1] = label = gtk_label_new ("0.0");
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 3, 4, 2, 3);
gtk_widget_show (label);
measure->unit_label[2] = label = gtk_label_new (NULL);
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 4, 5, 2, 3);
gtk_widget_show (label);
label = gtk_label_new (_("Height:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 3, 4);
gtk_widget_show (label);
measure->height_label[0] = label = gtk_label_new ("0.0");
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 1, 2, 3, 4);
gtk_widget_show (label);
label = gtk_label_new (_("pixels"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 2, 3, 3, 4);
gtk_widget_show (label);
measure->height_label[1] = label = gtk_label_new ("0.0");
gtk_label_set_selectable (GTK_LABEL (label), TRUE);
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 3, 4, 3, 4);
gtk_widget_show (label);
measure->unit_label[3] = label = gtk_label_new (NULL);
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 4, 5, 3, 4);
gtk_widget_show (label);
return dialog;
}
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