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/*
* object-editor-position-page.c
* Copyright (C) 2003-2009 Jim Evins <evins@snaught.com>.
*
* This file is part of gLabels.
*
* gLabels 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.
*
* gLabels 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 gLabels. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include "object-editor.h"
#include <glib/gi18n.h>
#include <gtk/gtk.h>
#include <math.h>
#include "prefs.h"
#include "builder-util.h"
#include "units-util.h"
#include "object-editor-private.h"
#include "debug.h"
/*===========================================*/
/* Private macros */
/*===========================================*/
/*===========================================*/
/* Private data types */
/*===========================================*/
/*===========================================*/
/* Private globals */
/*===========================================*/
/*===========================================*/
/* Local function prototypes */
/*===========================================*/
/*--------------------------------------------------------------------------*/
/* PRIVATE. Prepare position page. */
/*--------------------------------------------------------------------------*/
void
gl_object_editor_prepare_position_page (glObjectEditor *editor)
{
lglUnits units;
const gchar *units_string;
gdouble climb_rate;
gint digits;
gl_debug (DEBUG_EDITOR, "START");
/* Extract widgets from XML tree. */
gl_builder_util_get_widgets (editor->priv->builder,
"pos_page_vbox", &editor->priv->pos_page_vbox,
"pos_x_spin", &editor->priv->pos_x_spin,
"pos_y_spin", &editor->priv->pos_y_spin,
"pos_x_units_label", &editor->priv->pos_x_units_label,
"pos_y_units_label", &editor->priv->pos_y_units_label,
NULL);
/* Get configuration information */
units = gl_prefs_model_get_units (gl_prefs);
units_string = lgl_units_get_name (units);
editor->priv->units_per_point = lgl_units_get_units_per_point (units);
climb_rate = gl_units_util_get_step_size (units);
digits = gl_units_util_get_precision (units);
/* Modify widgets based on configuration */
gtk_spin_button_set_digits (GTK_SPIN_BUTTON(editor->priv->pos_x_spin), digits);
gtk_spin_button_set_increments (GTK_SPIN_BUTTON(editor->priv->pos_x_spin),
climb_rate, 10.0*climb_rate);
gtk_label_set_text (GTK_LABEL(editor->priv->pos_x_units_label), units_string);
gtk_spin_button_set_digits (GTK_SPIN_BUTTON(editor->priv->pos_y_spin), digits);
gtk_spin_button_set_increments (GTK_SPIN_BUTTON(editor->priv->pos_y_spin),
climb_rate, 10.0*climb_rate);
gtk_label_set_text (GTK_LABEL(editor->priv->pos_y_units_label), units_string);
/* Un-hide */
gtk_widget_show_all (editor->priv->pos_page_vbox);
/* Connect signals */
g_signal_connect_swapped (G_OBJECT (editor->priv->pos_x_spin),
"value-changed",
G_CALLBACK (gl_object_editor_changed_cb),
G_OBJECT (editor));
g_signal_connect_swapped (G_OBJECT (editor->priv->pos_y_spin),
"value-changed",
G_CALLBACK (gl_object_editor_changed_cb),
G_OBJECT (editor));
gl_debug (DEBUG_EDITOR, "END");
}
/*****************************************************************************/
/* Set position. */
/*****************************************************************************/
void
gl_object_editor_set_position (glObjectEditor *editor,
gdouble x,
gdouble y)
{
gl_debug (DEBUG_EDITOR, "START");
g_signal_handlers_block_by_func (G_OBJECT (editor->priv->pos_x_spin),
gl_object_editor_changed_cb, editor);
g_signal_handlers_block_by_func (G_OBJECT (editor->priv->pos_y_spin),
gl_object_editor_changed_cb, editor);
/* save a copy in internal units */
editor->priv->x = x;
editor->priv->y = y;
/* convert internal units to displayed units */
gl_debug (DEBUG_EDITOR, "internal x,y = %g, %g", x, y);
x *= editor->priv->units_per_point;
y *= editor->priv->units_per_point;
gl_debug (DEBUG_EDITOR, "display x,y = %g, %g", x, y);
/* Set widget values */
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->priv->pos_x_spin), x);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->priv->pos_y_spin), y);
g_signal_handlers_unblock_by_func (G_OBJECT (editor->priv->pos_x_spin),
gl_object_editor_changed_cb, editor);
g_signal_handlers_unblock_by_func (G_OBJECT (editor->priv->pos_y_spin),
gl_object_editor_changed_cb, editor);
gl_debug (DEBUG_EDITOR, "END");
}
/*****************************************************************************/
/* Set maximum position. */
/*****************************************************************************/
void
gl_object_editor_set_max_position (glObjectEditor *editor,
gdouble x_max,
gdouble y_max)
{
gdouble tmp;
gl_debug (DEBUG_EDITOR, "START");
g_signal_handlers_block_by_func (G_OBJECT (editor->priv->pos_x_spin),
gl_object_editor_changed_cb, editor);
g_signal_handlers_block_by_func (G_OBJECT (editor->priv->pos_y_spin),
gl_object_editor_changed_cb, editor);
/* save a copy in internal units */
editor->priv->x_max = x_max;
editor->priv->y_max = y_max;
/* convert internal units to displayed units */
gl_debug (DEBUG_EDITOR, "internal x_max,y_max = %g, %g", x_max, y_max);
x_max *= editor->priv->units_per_point;
y_max *= editor->priv->units_per_point;
gl_debug (DEBUG_EDITOR, "display x_max,y_max = %g, %g", x_max, y_max);
/* Set widget values */
tmp = gtk_spin_button_get_value (GTK_SPIN_BUTTON (editor->priv->pos_x_spin));
gtk_spin_button_set_range (GTK_SPIN_BUTTON (editor->priv->pos_x_spin), -x_max, 2.0*x_max);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->priv->pos_x_spin), tmp);
tmp = gtk_spin_button_get_value (GTK_SPIN_BUTTON (editor->priv->pos_y_spin));
gtk_spin_button_set_range (GTK_SPIN_BUTTON (editor->priv->pos_y_spin), -y_max, 2.0*y_max);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->priv->pos_y_spin), tmp);
g_signal_handlers_unblock_by_func (G_OBJECT (editor->priv->pos_x_spin),
gl_object_editor_changed_cb, editor);
g_signal_handlers_unblock_by_func (G_OBJECT (editor->priv->pos_y_spin),
gl_object_editor_changed_cb, editor);
gl_debug (DEBUG_EDITOR, "END");
}
/*****************************************************************************/
/* Query position. */
/*****************************************************************************/
void
gl_object_editor_get_position (glObjectEditor *editor,
gdouble *x,
gdouble *y)
{
gl_debug (DEBUG_EDITOR, "START");
/* Get values from widgets */
*x = gtk_spin_button_get_value (GTK_SPIN_BUTTON (editor->priv->pos_x_spin));
*y = gtk_spin_button_get_value (GTK_SPIN_BUTTON (editor->priv->pos_y_spin));
/* convert everything back to our internal units (points) */
*x /= editor->priv->units_per_point;
*y /= editor->priv->units_per_point;
/* save a copy in internal units */
editor->priv->x = *x;
editor->priv->y = *y;
gl_debug (DEBUG_EDITOR, "END");
}
/*****************************************************************************/
/* PRIVATE. Prefs changed callback. Update units related items. */
/*****************************************************************************/
void
position_prefs_changed_cb (glObjectEditor *editor)
{
lglUnits units;
const gchar *units_string;
gdouble climb_rate;
gint digits;
gl_debug (DEBUG_EDITOR, "START");
g_signal_handlers_block_by_func (G_OBJECT (editor->priv->pos_x_spin),
gl_object_editor_changed_cb, editor);
g_signal_handlers_block_by_func (G_OBJECT (editor->priv->pos_y_spin),
gl_object_editor_changed_cb, editor);
/* Get new configuration information */
units = gl_prefs_model_get_units (gl_prefs);
units_string = lgl_units_get_name (units);
editor->priv->units_per_point = lgl_units_get_units_per_point (units);
climb_rate = gl_units_util_get_step_size (units);
digits = gl_units_util_get_precision (units);
/* Update characteristics of x_spin/y_spin */
gtk_spin_button_set_digits (GTK_SPIN_BUTTON(editor->priv->pos_x_spin), digits);
gtk_spin_button_set_digits (GTK_SPIN_BUTTON(editor->priv->pos_y_spin), digits);
gtk_spin_button_set_increments (GTK_SPIN_BUTTON(editor->priv->pos_x_spin),
climb_rate, 10.0*climb_rate);
gtk_spin_button_set_increments (GTK_SPIN_BUTTON(editor->priv->pos_y_spin),
climb_rate, 10.0*climb_rate);
/* Update units_labels */
gtk_label_set_text (GTK_LABEL(editor->priv->pos_x_units_label),
units_string);
gtk_label_set_text (GTK_LABEL(editor->priv->pos_y_units_label),
units_string);
/* Update values of x_spin/y_spin */
gl_object_editor_set_position (editor, editor->priv->x, editor->priv->y);
gl_object_editor_set_max_position (editor, editor->priv->x_max, editor->priv->y_max);
g_signal_handlers_unblock_by_func (G_OBJECT (editor->priv->pos_x_spin),
gl_object_editor_changed_cb, editor);
g_signal_handlers_unblock_by_func (G_OBJECT (editor->priv->pos_y_spin),
gl_object_editor_changed_cb, editor);
gl_debug (DEBUG_EDITOR, "END");
}
/*
* Local Variables: -- emacs
* mode: C -- emacs
* c-basic-offset: 8 -- emacs
* tab-width: 8 -- emacs
* indent-tabs-mode: nil -- emacs
* End: -- emacs
*/
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