git.sur5r.net Git - glabels/blob - src/object-editor-shadow-page.c

   1 /*
   2  *  object-editor-shadow-page.c
   3  *  Copyright (C) 2006-2009  Jim Evins <evins@snaught.com>.
   4  *
   5  *  This file is part of gLabels.
   6  *
   7  *  gLabels is free software: you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation, either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  gLabels is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with gLabels.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <config.h>
  22
  23 #include "object-editor.h"
  24
  25 #include <glib/gi18n.h>
  26 #include <gtk/gtk.h>
  27 #include <math.h>
  28
  29 #include "prefs.h"
  30 #include "color-combo.h"
  31 #include "color.h"
  32 #include "combo-util.h"
  33 #include "builder-util.h"
  34 #include "units-util.h"
  35
  36 #include "object-editor-private.h"
  37
  38 #include "debug.h"
  39
  40
  41 /*===========================================*/
  42 /* Private macros                            */
  43 /*===========================================*/
  44
  45
  46 /*===========================================*/
  47 /* Private data types                        */
  48 /*===========================================*/
  49
  50
  51 /*===========================================*/
  52 /* Private globals                           */
  53 /*===========================================*/
  54
  55
  56 /*===========================================*/
  57 /* Local function prototypes                 */
  58 /*===========================================*/
  59
  60 static void shadow_enable_check_toggled_cb (glObjectEditor        *editor);
  61 static void shadow_color_radio_toggled_cb  (glObjectEditor        *editor);
  62
  63
  64 /*--------------------------------------------------------------------------*/
  65 /* PRIVATE.  Prepare shadow page.                                         */
  66 /*--------------------------------------------------------------------------*/
  67 void
  68 gl_object_editor_prepare_shadow_page (glObjectEditor *editor)
  69 {
  70         lglUnits      units;
  71         const gchar  *units_string;
  72         gdouble       climb_rate;
  73         gint          digits;
  74
  75         gl_debug (DEBUG_EDITOR, "START");
  76
  77         /* Extract widgets from XML tree. */
  78         gl_builder_util_get_widgets (editor->priv->builder,
  79                                      "shadow_page_vbox",      &editor->priv->shadow_page_vbox,
  80                                      "shadow_enable_check",   &editor->priv->shadow_enable_check,
  81                                      "shadow_controls_table", &editor->priv->shadow_controls_table,
  82                                      "shadow_x_spin",         &editor->priv->shadow_x_spin,
  83                                      "shadow_y_spin",         &editor->priv->shadow_y_spin,
  84                                      "shadow_x_units_label",  &editor->priv->shadow_x_units_label,
  85                                      "shadow_y_units_label",  &editor->priv->shadow_y_units_label,
  86                                      "shadow_color_radio",    &editor->priv->shadow_color_radio,
  87                                      "shadow_key_radio",      &editor->priv->shadow_key_radio,
  88                                      "shadow_color_hbox",     &editor->priv->shadow_color_hbox,
  89                                      "shadow_key_combo",      &editor->priv->shadow_key_combo,
  90                                      "shadow_opacity_spin",   &editor->priv->shadow_opacity_spin,
  91                                      NULL);
  92
  93         editor->priv->shadow_color_combo = gl_color_combo_new (_("Default"),
  94                                                                GL_COLOR_SHADOW_DEFAULT,
  95                                                                GL_COLOR_SHADOW_DEFAULT);
  96         gtk_container_add (GTK_CONTAINER (editor->priv->shadow_color_hbox),
  97                            editor->priv->shadow_color_combo);
  98
  99         gl_combo_util_add_text_model ( GTK_COMBO_BOX(editor->priv->shadow_key_combo));
 100
 101         /* Get configuration information */
 102         units = gl_prefs_model_get_units (gl_prefs);
 103         units_string = lgl_units_get_name (units);
 104         editor->priv->units_per_point = lgl_units_get_units_per_point (units);
 105         climb_rate = gl_units_util_get_step_size (units);
 106         digits = gl_units_util_get_precision (units);
 107
 108         /* Modify widgets based on configuration */
 109         gtk_spin_button_set_digits (GTK_SPIN_BUTTON(editor->priv->shadow_x_spin), digits);
 110         gtk_spin_button_set_increments (GTK_SPIN_BUTTON(editor->priv->shadow_x_spin),
 111                                         climb_rate, 10.0*climb_rate);
 112         gtk_label_set_text (GTK_LABEL(editor->priv->shadow_x_units_label), units_string);
 113         gtk_spin_button_set_digits (GTK_SPIN_BUTTON(editor->priv->shadow_y_spin), digits);
 114         gtk_spin_button_set_increments (GTK_SPIN_BUTTON(editor->priv->shadow_y_spin),
 115                                         climb_rate, 10.0*climb_rate);
 116         gtk_label_set_text (GTK_LABEL(editor->priv->shadow_y_units_label), units_string);
 117
 118         /* Un-hide */
 119         gtk_widget_show_all (editor->priv->shadow_page_vbox);
 120
 121         /* Connect signals */
 122         g_signal_connect_swapped (G_OBJECT (editor->priv->shadow_enable_check),
 123                                   "toggled",
 124                                   G_CALLBACK (shadow_enable_check_toggled_cb),
 125                                   G_OBJECT (editor));
 126         g_signal_connect_swapped (G_OBJECT (editor->priv->shadow_x_spin),
 127                                   "changed",
 128                                   G_CALLBACK (gl_object_editor_changed_cb),
 129                                   G_OBJECT (editor));
 130         g_signal_connect_swapped (G_OBJECT (editor->priv->shadow_y_spin),
 131                                   "changed",
 132                                   G_CALLBACK (gl_object_editor_changed_cb),
 133                                   G_OBJECT (editor));
 134         g_signal_connect_swapped (G_OBJECT (editor->priv->shadow_color_combo),
 135                                   "color_changed",
 136                                   G_CALLBACK (gl_object_editor_changed_cb),
 137                                   G_OBJECT (editor));
 138         g_signal_connect_swapped (G_OBJECT (editor->priv->shadow_key_combo),
 139                                   "changed",
 140                                   G_CALLBACK (gl_object_editor_changed_cb),
 141                                   G_OBJECT (editor));
 142         g_signal_connect_swapped (G_OBJECT (editor->priv->shadow_color_radio),
 143                                   "toggled",
 144                                   G_CALLBACK (shadow_color_radio_toggled_cb),
 145                                   G_OBJECT (editor));
 146         g_signal_connect_swapped (G_OBJECT (editor->priv->shadow_key_radio),
 147                                   "toggled",
 148                                   G_CALLBACK (shadow_color_radio_toggled_cb),
 149                                   G_OBJECT (editor));
 150         g_signal_connect_swapped (G_OBJECT (editor->priv->shadow_opacity_spin),
 151                                   "changed",
 152                                   G_CALLBACK (gl_object_editor_changed_cb),
 153                                   G_OBJECT (editor));
 154
 155         gl_debug (DEBUG_EDITOR, "END");
 156 }
 157
 158
 159 /*****************************************************************************/
 160 /* Set shadow parameters.                                                    */
 161 /*****************************************************************************/
 162 void
 163 gl_object_editor_set_shadow_state (glObjectEditor      *editor,
 164                                    gboolean             state)
 165 {
 166         gl_debug (DEBUG_EDITOR, "START");
 167
 168         editor->priv->stop_signals = TRUE;
 169
 170         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (editor->priv->shadow_enable_check),
 171                                       state);
 172         gtk_widget_set_sensitive (editor->priv->shadow_controls_table, state);
 173
 174         editor->priv->stop_signals = FALSE;
 175
 176         gl_debug (DEBUG_EDITOR, "END");
 177 }
 178
 179
 180 void
 181 gl_object_editor_set_shadow_offset (glObjectEditor      *editor,
 182                                     gdouble              x,
 183                                     gdouble              y)
 184 {
 185         gl_debug (DEBUG_EDITOR, "START");
 186
 187         editor->priv->stop_signals = TRUE;
 188
 189         /* save a copy in internal units */
 190         editor->priv->shadow_x = x;
 191         editor->priv->shadow_y = y;
 192
 193         /* convert internal units to displayed units */
 194         gl_debug (DEBUG_EDITOR, "internal x,y = %g, %g", x, y);
 195         x *= editor->priv->units_per_point;
 196         y *= editor->priv->units_per_point;
 197         gl_debug (DEBUG_EDITOR, "display x,y = %g, %g", x, y);
 198
 199         /* Set widget values */
 200         gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->priv->shadow_x_spin), x);
 201         gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->priv->shadow_y_spin), y);
 202
 203         editor->priv->stop_signals = FALSE;
 204
 205         gl_debug (DEBUG_EDITOR, "END");
 206 }
 207
 208
 209 void
 210 gl_object_editor_set_shadow_color (glObjectEditor      *editor,
 211                                    gboolean             merge_flag,
 212                                    glColorNode         *color_node)
 213 {
 214         gl_debug (DEBUG_EDITOR, "START");
 215
 216         editor->priv->stop_signals = TRUE;
 217
 218         gtk_widget_set_sensitive (editor->priv->shadow_key_radio, merge_flag);
 219
 220         if ( color_node->color == GL_COLOR_NONE ) {
 221
 222                 gl_color_combo_set_to_default (GL_COLOR_COMBO(editor->priv->shadow_color_combo));
 223
 224         } else {
 225
 226                 gl_color_combo_set_color (GL_COLOR_COMBO(editor->priv->shadow_color_combo),
 227                                           color_node->color);
 228
 229         }
 230
 231         if (!color_node->field_flag || !merge_flag) {
 232                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 233                                                   (editor->priv->shadow_color_radio), TRUE);
 234                 gtk_widget_set_sensitive (editor->priv->shadow_color_combo, TRUE);
 235                 gtk_widget_set_sensitive (editor->priv->shadow_key_combo, FALSE);
 236
 237         } else {
 238                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 239                                                   (editor->priv->shadow_key_radio), TRUE);
 240                 gtk_widget_set_sensitive (editor->priv->shadow_color_combo, FALSE);
 241                 gtk_widget_set_sensitive (editor->priv->shadow_key_combo, TRUE);
 242
 243                 gl_combo_util_set_active_text (GTK_COMBO_BOX (editor->priv->shadow_key_combo),
 244                                                color_node->key);
 245         }
 246
 247         editor->priv->stop_signals = FALSE;
 248
 249         gl_debug (DEBUG_EDITOR, "END");
 250 }
 251
 252
 253 void
 254 gl_object_editor_set_shadow_opacity (glObjectEditor      *editor,
 255                                      gdouble              alpha)
 256 {
 257         gl_debug (DEBUG_EDITOR, "START");
 258
 259         editor->priv->stop_signals = TRUE;
 260
 261         gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->priv->shadow_opacity_spin),
 262                                    alpha * 100.0);
 263
 264         editor->priv->stop_signals = FALSE;
 265
 266         gl_debug (DEBUG_EDITOR, "END");
 267 }
 268
 269
 270 /*****************************************************************************/
 271 /* Set maximum shadow offset.                                                */
 272 /*****************************************************************************/
 273 void
 274 gl_object_editor_set_max_shadow_offset (glObjectEditor      *editor,
 275                                         gdouble              x_max,
 276                                         gdouble              y_max)
 277 {
 278         gdouble tmp;
 279
 280         gl_debug (DEBUG_EDITOR, "START");
 281
 282         if (editor->priv->shadow_page_vbox)
 283         {
 284
 285                 editor->priv->stop_signals = TRUE;
 286
 287                 /* save a copy in internal units */
 288                 editor->priv->shadow_x_max = x_max;
 289                 editor->priv->shadow_y_max = y_max;
 290
 291                 /* convert internal units to displayed units */
 292                 gl_debug (DEBUG_EDITOR, "internal x_max,y_max = %g, %g", x_max, y_max);
 293                 x_max *= editor->priv->units_per_point;
 294                 y_max *= editor->priv->units_per_point;
 295                 gl_debug (DEBUG_EDITOR, "display x_max,y_max = %g, %g", x_max, y_max);
 296
 297                 /* Set widget values */
 298                 tmp = gtk_spin_button_get_value (GTK_SPIN_BUTTON (editor->priv->shadow_x_spin));
 299                 gtk_spin_button_set_range (GTK_SPIN_BUTTON (editor->priv->shadow_x_spin),
 300                                            -x_max, x_max);
 301                 gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->priv->shadow_x_spin), tmp);
 302                 tmp = gtk_spin_button_get_value (GTK_SPIN_BUTTON (editor->priv->shadow_y_spin));
 303                 gtk_spin_button_set_range (GTK_SPIN_BUTTON (editor->priv->shadow_y_spin),
 304                                            -y_max, y_max);
 305                 gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->priv->shadow_y_spin), tmp);
 306
 307                 editor->priv->stop_signals = FALSE;
 308
 309         }
 310
 311         gl_debug (DEBUG_EDITOR, "END");
 312 }
 313
 314
 315 /*****************************************************************************/
 316 /* Query shadow parameters.                                                  */
 317 /*****************************************************************************/
 318 gboolean
 319 gl_object_editor_get_shadow_state (glObjectEditor      *editor)
 320 {
 321         gboolean state;
 322
 323         gl_debug (DEBUG_EDITOR, "START");
 324
 325         state = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (editor->priv->shadow_enable_check));
 326
 327         gl_debug (DEBUG_EDITOR, "END");
 328
 329         return state;
 330 }
 331
 332
 333 void
 334 gl_object_editor_get_shadow_offset (glObjectEditor      *editor,
 335                                     gdouble             *x,
 336                                     gdouble             *y)
 337 {
 338         gl_debug (DEBUG_EDITOR, "START");
 339
 340         /* Get values from widgets */
 341         *x = gtk_spin_button_get_value (GTK_SPIN_BUTTON (editor->priv->shadow_x_spin));
 342         *y = gtk_spin_button_get_value (GTK_SPIN_BUTTON (editor->priv->shadow_y_spin));
 343
 344         /* convert everything back to our internal units (points) */
 345         *x /= editor->priv->units_per_point;
 346         *y /= editor->priv->units_per_point;
 347
 348         /* save a copy in internal units */
 349         editor->priv->shadow_x = *x;
 350         editor->priv->shadow_y = *y;
 351
 352         gl_debug (DEBUG_EDITOR, "END");
 353 }
 354
 355
 356 glColorNode*
 357 gl_object_editor_get_shadow_color (glObjectEditor      *editor)
 358 {
 359         guint        color;
 360         gboolean     is_default;
 361         glColorNode *color_node;
 362
 363         gl_debug (DEBUG_EDITOR, "START");
 364
 365         color_node = gl_color_node_new_default ();
 366
 367         if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (editor->priv->shadow_key_radio))) {
 368                 color_node->field_flag = TRUE;
 369                 color_node->key =
 370                         gtk_combo_box_get_active_text (GTK_COMBO_BOX (editor->priv->shadow_key_combo));
 371         } else {
 372                 color_node->field_flag = FALSE;
 373                 color_node->key = NULL;
 374                 color = gl_color_combo_get_color (GL_COLOR_COMBO(editor->priv->shadow_color_combo),
 375                                                   &is_default);
 376
 377                 if (!is_default) {
 378                         color_node->color = color;
 379                 }
 380         }
 381
 382         gl_debug (DEBUG_EDITOR, "END");
 383
 384         return color_node;
 385 }
 386
 387
 388 gdouble
 389 gl_object_editor_get_shadow_opacity (glObjectEditor      *editor)
 390 {
 391         gdouble alpha;
 392
 393         gl_debug (DEBUG_EDITOR, "START");
 394
 395         alpha = gtk_spin_button_get_value (GTK_SPIN_BUTTON (editor->priv->shadow_opacity_spin));
 396
 397         gl_debug (DEBUG_EDITOR, "END");
 398
 399         return alpha / 100.0;
 400 }
 401
 402
 403 /*****************************************************************************/
 404 /* PRIVATE. Prefs changed callback.  Update units related items.            */
 405 /*****************************************************************************/
 406 void
 407 shadow_prefs_changed_cb (glObjectEditor *editor)
 408 {
 409         lglUnits      units;
 410         const gchar  *units_string;
 411         gdouble       climb_rate;
 412         gint          digits;
 413
 414         gl_debug (DEBUG_EDITOR, "START");
 415
 416         /* Get new configuration information */
 417         units = gl_prefs_model_get_units (gl_prefs);
 418         units_string = lgl_units_get_name (units);
 419         editor->priv->units_per_point = lgl_units_get_units_per_point (units);
 420         climb_rate = gl_units_util_get_step_size (units);
 421         digits = gl_units_util_get_precision (units);
 422
 423         /* Update characteristics of x_spin/y_spin */
 424         editor->priv->stop_signals = TRUE;
 425         gtk_spin_button_set_digits (GTK_SPIN_BUTTON(editor->priv->shadow_x_spin),
 426                                     digits);
 427         gtk_spin_button_set_digits (GTK_SPIN_BUTTON(editor->priv->shadow_y_spin),
 428                                     digits);
 429         gtk_spin_button_set_increments (GTK_SPIN_BUTTON(editor->priv->shadow_x_spin),
 430                                         climb_rate, 10.0*climb_rate);
 431         gtk_spin_button_set_increments (GTK_SPIN_BUTTON(editor->priv->shadow_y_spin),
 432                                         climb_rate, 10.0*climb_rate);
 433         editor->priv->stop_signals = FALSE;
 434
 435         /* Update units_labels */
 436         gtk_label_set_text (GTK_LABEL(editor->priv->shadow_x_units_label),
 437                             units_string);
 438         gtk_label_set_text (GTK_LABEL(editor->priv->shadow_y_units_label),
 439                             units_string);
 440
 441         /* Update values of x_spin/y_spin */
 442         gl_object_editor_set_shadow_offset (editor,
 443                                             editor->priv->shadow_x,
 444                                             editor->priv->shadow_y);
 445         gl_object_editor_set_max_shadow_offset (editor,
 446                                                 editor->priv->shadow_x_max,
 447                                                 editor->priv->shadow_y_max);
 448
 449         gl_debug (DEBUG_EDITOR, "END");
 450 }
 451
 452
 453 /*--------------------------------------------------------------------------*/
 454 /* PRIVATE.  shadow enable check callback.                                  */
 455 /*--------------------------------------------------------------------------*/
 456 static void
 457 shadow_enable_check_toggled_cb (glObjectEditor *editor)
 458 {
 459         gboolean state;
 460
 461         if (editor->priv->stop_signals) return;
 462
 463         gl_debug (DEBUG_EDITOR, "START");
 464
 465         state = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (editor->priv->shadow_enable_check));
 466
 467         gtk_widget_set_sensitive (editor->priv->shadow_controls_table, state);
 468
 469         /* Emit our "changed" signal */
 470         g_signal_emit (G_OBJECT (editor), gl_object_editor_signals[CHANGED], 0);
 471
 472         gl_debug (DEBUG_EDITOR, "END");
 473 }
 474
 475
 476 /*--------------------------------------------------------------------------*/
 477 /* PRIVATE.  shadow color radio callback.                                   */
 478 /*--------------------------------------------------------------------------*/
 479 static void
 480 shadow_color_radio_toggled_cb (glObjectEditor *editor)
 481 {
 482         if (editor->priv->stop_signals) return;
 483
 484         gl_debug (DEBUG_EDITOR, "START");
 485
 486         if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (editor->priv->shadow_color_radio))) {
 487                 gtk_widget_set_sensitive (editor->priv->shadow_color_combo, TRUE);
 488                 gtk_widget_set_sensitive (editor->priv->shadow_key_combo, FALSE);
 489         } else {
 490                 gtk_widget_set_sensitive (editor->priv->shadow_color_combo, FALSE);
 491                 gtk_widget_set_sensitive (editor->priv->shadow_key_combo, TRUE);
 492
 493         }
 494
 495         /* Emit our "changed" signal */
 496         g_signal_emit (G_OBJECT (editor), gl_object_editor_signals[CHANGED], 0);
 497
 498         gl_debug (DEBUG_EDITOR, "END");
 499 }
 500
 501
 502
 503 /*
 504  * Local Variables:       -- emacs
 505  * mode: C                -- emacs
 506  * c-basic-offset: 8      -- emacs
 507  * tab-width: 8           -- emacs
 508  * indent-tabs-mode: nil  -- emacs
 509  * End:                   -- emacs
 510  */