git.sur5r.net Git - glabels/blob - glabels2/src/wdgt-text-props.c

   1 /*
   2  *  (GLABELS) Label and Business Card Creation program for GNOME
   3  *
   4  *  wdgt_text_props.c:  text properties widget module
   5  *
   6  *  Copyright (C) 2001-2002  Jim Evins <evins@snaught.com>.
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21  */
  22
  23 #include <config.h>
  24
  25 #include <gnome.h>
  26
  27 #include "wdgt-text-props.h"
  28 #include "marshal.h"
  29
  30 #include "debug.h"
  31
  32 #define RED(x)   ( ((x)>>24) & 0xff )
  33 #define GREEN(x) ( ((x)>>16) & 0xff )
  34 #define BLUE(x)  ( ((x)>>8)  & 0xff )
  35 #define ALPHA(x) (  (x)      & 0xff )
  36
  37 /*===========================================*/
  38 /* Private types                             */
  39 /*===========================================*/
  40
  41 enum {
  42         CHANGED,
  43         LAST_SIGNAL
  44 };
  45
  46 typedef void (*glWdgtTextPropsSignal) (GObject * object,
  47                                   gpointer data);
  48
  49 /*===========================================*/
  50 /* Private globals                           */
  51 /*===========================================*/
  52
  53 static GObjectClass *parent_class;
  54
  55 static gint wdgt_text_props_signals[LAST_SIGNAL] = { 0 };
  56
  57 /*===========================================*/
  58 /* Local function prototypes                 */
  59 /*===========================================*/
  60
  61 static void gl_wdgt_text_props_class_init (glWdgtTextPropsClass * class);
  62 static void gl_wdgt_text_props_instance_init (glWdgtTextProps * text);
  63 static void gl_wdgt_text_props_finalize (GObject * object);
  64 static void gl_wdgt_text_props_construct (glWdgtTextProps * text, gchar * label);
  65
  66 static void changed_cb (glWdgtTextProps * text);
  67 static void just_toggled_cb (GtkToggleButton * togglebutton,
  68                              gpointer user_data);
  69 \f
  70 /*================================================================*/
  71 /* Boilerplate Object stuff.                                      */
  72 /*================================================================*/
  73 guint
  74 gl_wdgt_text_props_get_type (void)
  75 {
  76         static guint wdgt_text_props_type = 0;
  77
  78         if (!wdgt_text_props_type) {
  79                 GTypeInfo wdgt_text_props_info = {
  80                         sizeof (glWdgtTextPropsClass),
  81                         NULL,
  82                         NULL,
  83                         (GClassInitFunc) gl_wdgt_text_props_class_init,
  84                         NULL,
  85                         NULL,
  86                         sizeof (glWdgtTextProps),
  87                         0,
  88                         (GInstanceInitFunc) gl_wdgt_text_props_instance_init,
  89                 };
  90
  91                 wdgt_text_props_type =
  92                     g_type_register_static (gtk_vbox_get_type (),
  93                                             "glWdgtTextProps", &wdgt_text_props_info, 0);
  94         }
  95
  96         return wdgt_text_props_type;
  97 }
  98
  99 static void
 100 gl_wdgt_text_props_class_init (glWdgtTextPropsClass * class)
 101 {
 102         GObjectClass *object_class;
 103
 104         object_class = (GObjectClass *) class;
 105
 106         parent_class = gtk_type_class (gtk_vbox_get_type ());
 107
 108         object_class->finalize = gl_wdgt_text_props_finalize;
 109
 110         wdgt_text_props_signals[CHANGED] =
 111             g_signal_new ("changed",
 112                           G_OBJECT_CLASS_TYPE(object_class),
 113                           G_SIGNAL_RUN_LAST,
 114                           G_STRUCT_OFFSET (glWdgtTextPropsClass, changed),
 115                           NULL, NULL,
 116                           gl_marshal_VOID__VOID,
 117                           G_TYPE_NONE, 0);
 118
 119 }
 120
 121 static void
 122 gl_wdgt_text_props_instance_init (glWdgtTextProps * text)
 123 {
 124         text->font_family_entry = NULL;
 125         text->font_size_spin = NULL;
 126         text->font_b_button = NULL;
 127         text->font_i_button = NULL;
 128
 129         text->color_picker = NULL;
 130
 131         text->left_button = NULL;
 132         text->right_button = NULL;
 133         text->center_button = NULL;
 134 }
 135
 136 static void
 137 gl_wdgt_text_props_finalize (GObject * object)
 138 {
 139         glWdgtTextProps *text;
 140
 141         g_return_if_fail (object != NULL);
 142         g_return_if_fail (GL_IS_WDGT_TEXT_PROPS (object));
 143
 144         text = GL_WDGT_TEXT_PROPS (object);
 145
 146         G_OBJECT_CLASS (parent_class)->finalize (object);
 147 }
 148
 149 GtkWidget *
 150 gl_wdgt_text_props_new (gchar * label)
 151 {
 152         glWdgtTextProps *text;
 153
 154         text = g_object_new (gl_wdgt_text_props_get_type (), NULL);
 155
 156         gl_wdgt_text_props_construct (text, label);
 157
 158         return GTK_WIDGET (text);
 159 }
 160 \f
 161 /*============================================================*/
 162 /* Construct composite widget.                                */
 163 /*============================================================*/
 164 static void
 165 gl_wdgt_text_props_construct (glWdgtTextProps * text,
 166                         gchar * label)
 167 {
 168         GtkWidget *wvbox, *wframe, *wtable, *wlabel, *whbox1, *wcombo;
 169         GList *family_names = NULL;
 170         GtkObject *adjust;
 171
 172         wvbox = GTK_WIDGET (text);
 173
 174         wframe = gtk_frame_new (label);
 175         gtk_box_pack_start (GTK_BOX (wvbox), wframe, FALSE, FALSE, 0);
 176
 177         wtable = gtk_table_new (3, 3, FALSE);
 178         gtk_container_set_border_width (GTK_CONTAINER (wtable), 10);
 179         gtk_table_set_row_spacings (GTK_TABLE (wtable), 5);
 180         gtk_table_set_col_spacings (GTK_TABLE (wtable), 5);
 181         gtk_container_add (GTK_CONTAINER (wframe), wtable);
 182
 183         /* Font label */
 184         wlabel = gtk_label_new (_("Font:"));
 185         gtk_misc_set_alignment (GTK_MISC (wlabel), 0, 0.5);
 186         gtk_label_set_justify (GTK_LABEL (wlabel), GTK_JUSTIFY_RIGHT);
 187         gtk_table_attach_defaults (GTK_TABLE (wtable), wlabel, 0, 1, 0, 1);
 188
 189         /* Pack these widgets into an inner hbox */
 190         whbox1 = gtk_hbox_new (FALSE, GNOME_PAD);
 191         gtk_table_attach_defaults (GTK_TABLE (wtable), whbox1, 1, 3, 0, 1);
 192
 193         /* Font family entry widget */
 194         wcombo = gtk_combo_new ();
 195         family_names = gnome_font_family_list ();
 196         gtk_combo_set_popdown_strings (GTK_COMBO (wcombo), family_names);
 197         gnome_font_family_list_free (family_names);
 198         text->font_family_entry = GTK_COMBO (wcombo)->entry;
 199         gtk_entry_set_editable (GTK_ENTRY (text->font_family_entry), FALSE);
 200         gtk_widget_set_size_request (wcombo, 200, -1);
 201         gtk_box_pack_start (GTK_BOX (whbox1), wcombo, FALSE, FALSE, 0);
 202         g_signal_connect_swapped (G_OBJECT (text->font_family_entry),
 203                                   "changed", G_CALLBACK (changed_cb),
 204                                   G_OBJECT (text));
 205
 206         /* Font size entry widget */
 207         adjust = gtk_adjustment_new (1.0, 1.0, 250.0, 1.0, 10.0, 10.0);
 208         text->font_size_spin =
 209             gtk_spin_button_new (GTK_ADJUSTMENT (adjust), 1.0, 0);
 210         gtk_box_pack_start (GTK_BOX (whbox1), text->font_size_spin, FALSE,
 211                             FALSE, 0);
 212         g_signal_connect_swapped (G_OBJECT (text->font_size_spin), "changed",
 213                                   G_CALLBACK (changed_cb),
 214                                   G_OBJECT (text));
 215
 216         /* Font weight/italic button widgets */
 217         text->font_b_button = gtk_toggle_button_new ();
 218         gtk_container_add (GTK_CONTAINER (text->font_b_button),
 219                            gtk_image_new_from_stock (GTK_STOCK_BOLD,
 220                                                      GTK_ICON_SIZE_BUTTON));
 221         gtk_box_pack_start (GTK_BOX (whbox1), text->font_b_button, FALSE, FALSE,
 222                             0);
 223         g_signal_connect_swapped (G_OBJECT (text->font_b_button), "toggled",
 224                                   G_CALLBACK (changed_cb),
 225                                   G_OBJECT (text));
 226         text->font_i_button = gtk_toggle_button_new ();
 227         gtk_container_add (GTK_CONTAINER (text->font_i_button),
 228                            gtk_image_new_from_stock (GTK_STOCK_ITALIC,
 229                                                      GTK_ICON_SIZE_BUTTON));
 230         gtk_box_pack_start (GTK_BOX (whbox1), text->font_i_button, FALSE, FALSE,
 231                             0);
 232         g_signal_connect_swapped (G_OBJECT (text->font_i_button), "toggled",
 233                                   G_CALLBACK (changed_cb),
 234                                   G_OBJECT (text));
 235
 236         /* Text Color Label */
 237         wlabel = gtk_label_new (_("Color:"));
 238         gtk_misc_set_alignment (GTK_MISC (wlabel), 0, 0.5);
 239         gtk_label_set_justify (GTK_LABEL (wlabel), GTK_JUSTIFY_RIGHT);
 240         gtk_table_attach_defaults (GTK_TABLE (wtable), wlabel, 0, 1, 1, 2);
 241
 242         /* Text Color picker widget */
 243         text->color_picker = gnome_color_picker_new ();
 244         g_signal_connect_swapped (G_OBJECT (text->color_picker), "color_set",
 245                                   G_CALLBACK (changed_cb),
 246                                   G_OBJECT (text));
 247         gtk_table_attach_defaults (GTK_TABLE (wtable), text->color_picker, 1, 2,
 248                                    1, 2);
 249
 250         /* Alignment label */
 251         wlabel = gtk_label_new (_("Alignment:"));
 252         gtk_misc_set_alignment (GTK_MISC (wlabel), 0, 0.5);
 253         gtk_label_set_justify (GTK_LABEL (wlabel), GTK_JUSTIFY_RIGHT);
 254         gtk_table_attach_defaults (GTK_TABLE (wtable), wlabel, 0, 1, 2, 3);
 255
 256         /* Pack these widgets into an inner hbox */
 257         whbox1 = gtk_hbox_new (FALSE, GNOME_PAD);
 258         gtk_table_attach_defaults (GTK_TABLE (wtable), whbox1, 1, 2, 2, 3);
 259
 260         /* Justification entry widget */
 261         text->left_button = gtk_toggle_button_new ();
 262         gtk_container_add (GTK_CONTAINER (text->left_button),
 263                            gtk_image_new_from_stock (GTK_STOCK_JUSTIFY_LEFT,
 264                                                      GTK_ICON_SIZE_BUTTON));
 265         gtk_box_pack_start (GTK_BOX (whbox1), text->left_button, FALSE, FALSE,
 266                             0);
 267         text->center_button = gtk_toggle_button_new ();
 268         gtk_container_add (GTK_CONTAINER (text->center_button),
 269                            gtk_image_new_from_stock (GTK_STOCK_JUSTIFY_CENTER,
 270                                                      GTK_ICON_SIZE_BUTTON));
 271         gtk_box_pack_start (GTK_BOX (whbox1), text->center_button, FALSE, FALSE,
 272                             0);
 273         text->right_button = gtk_toggle_button_new ();
 274         gtk_container_add (GTK_CONTAINER (text->right_button),
 275                            gtk_image_new_from_stock (GTK_STOCK_JUSTIFY_RIGHT,
 276                                                      GTK_ICON_SIZE_BUTTON));
 277         gtk_box_pack_start (GTK_BOX (whbox1), text->right_button, FALSE, FALSE,
 278                             0);
 279
 280         /* Now connect a callback that makes these toggles mutually exclusive */
 281         g_signal_connect (G_OBJECT (text->left_button), "toggled",
 282                           G_CALLBACK (just_toggled_cb), text);
 283         g_signal_connect (G_OBJECT (text->center_button), "toggled",
 284                           G_CALLBACK (just_toggled_cb), text);
 285         g_signal_connect (G_OBJECT (text->right_button), "toggled",
 286                           G_CALLBACK (just_toggled_cb), text);
 287
 288 }
 289
 290 /*--------------------------------------------------------------------------*/
 291 /* PRIVATE.  Callback for when any control in the widget has changed.       */
 292 /*--------------------------------------------------------------------------*/
 293 static void
 294 changed_cb (glWdgtTextProps * text)
 295 {
 296         /* Emit our "changed" signal */
 297         g_signal_emit (G_OBJECT (text), wdgt_text_props_signals[CHANGED], 0);
 298 }
 299 \f
 300 /*--------------------------------------------------------------------------*/
 301 /* PRIVATE.  Justify toggle button callback.                                */
 302 /*--------------------------------------------------------------------------*/
 303 static void
 304 just_toggled_cb (GtkToggleButton * togglebutton,
 305                  gpointer user_data)
 306 {
 307         glWdgtTextProps *text = GL_WDGT_TEXT_PROPS (user_data);
 308
 309         if (gtk_toggle_button_get_active (togglebutton)) {
 310
 311                 if (GTK_WIDGET (togglebutton) == GTK_WIDGET (text->left_button)) {
 312                         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 313                                                       (text->center_button),
 314                                                       FALSE);
 315                         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 316                                                       (text->right_button),
 317                                                       FALSE);
 318                 } else if (GTK_WIDGET (togglebutton) ==
 319                            GTK_WIDGET (text->center_button)) {
 320                         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 321                                                       (text->left_button),
 322                                                       FALSE);
 323                         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 324                                                       (text->right_button),
 325                                                       FALSE);
 326                 } else if (GTK_WIDGET (togglebutton) ==
 327                            GTK_WIDGET (text->right_button)) {
 328                         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 329                                                       (text->left_button),
 330                                                       FALSE);
 331                         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 332                                                       (text->center_button),
 333                                                       FALSE);
 334                 }
 335
 336         }
 337
 338         /* Emit our "changed" signal */
 339         g_signal_emit (G_OBJECT (text), wdgt_text_props_signals[CHANGED], 0);
 340 }
 341 \f
 342 /*====================================================================*/
 343 /* query values from controls.                                        */
 344 /*====================================================================*/
 345 void
 346 gl_wdgt_text_props_get_params (glWdgtTextProps * text,
 347                                gchar ** font_family,
 348                                gdouble * font_size,
 349                                GnomeFontWeight * font_weight,
 350                                gboolean * font_italic_flag,
 351                                guint * color,
 352                                GtkJustification * just)
 353 {
 354         guint8 r, g, b, a;
 355
 356         /* ------ Get updated font information ------ */
 357         *font_family =
 358             gtk_editable_get_chars (GTK_EDITABLE (text->font_family_entry), 0,
 359                                     -1);
 360         *font_size =
 361             gtk_spin_button_get_value (GTK_SPIN_BUTTON(text->font_size_spin));
 362         if (gtk_toggle_button_get_active
 363             (GTK_TOGGLE_BUTTON (text->font_b_button))) {
 364                 *font_weight = GNOME_FONT_BOLD;
 365         } else {
 366                 *font_weight = GNOME_FONT_BOOK;
 367         }
 368         *font_italic_flag =
 369             gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON
 370                                           (text->font_i_button));
 371
 372         /* ------ Get updated color ------ */
 373         gnome_color_picker_get_i8 (GNOME_COLOR_PICKER (text->color_picker),
 374                                    &r, &g, &b, &a);
 375         *color = GNOME_CANVAS_COLOR_A (r, g, b, a);
 376
 377         /* ------- Get updated justification ------ */
 378         if (gtk_toggle_button_get_active
 379             (GTK_TOGGLE_BUTTON (text->left_button))) {
 380                 *just = GTK_JUSTIFY_LEFT;
 381         } else
 382             if (gtk_toggle_button_get_active
 383                 (GTK_TOGGLE_BUTTON (text->right_button))) {
 384                 *just = GTK_JUSTIFY_RIGHT;
 385         } else
 386             if (gtk_toggle_button_get_active
 387                 (GTK_TOGGLE_BUTTON (text->center_button))) {
 388                 *just = GTK_JUSTIFY_CENTER;
 389         } else {
 390                 *just = GTK_JUSTIFY_LEFT;       /* Should not happen. */
 391         }
 392
 393 }
 394
 395 /*====================================================================*/
 396 /* fill in values and ranges for controls.                            */
 397 /*====================================================================*/
 398 void
 399 gl_wdgt_text_props_set_params (glWdgtTextProps * text,
 400                                gchar * font_family,
 401                                gdouble font_size,
 402                                GnomeFontWeight font_weight,
 403                                gboolean font_italic_flag,
 404                                guint color,
 405                                GtkJustification just)
 406 {
 407         gtk_entry_set_text (GTK_ENTRY (text->font_family_entry), font_family);
 408
 409         gtk_spin_button_set_value (GTK_SPIN_BUTTON (text->font_size_spin),
 410                                    font_size);
 411
 412         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (text->font_b_button),
 413                                       (font_weight == GNOME_FONT_BOLD));
 414
 415         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (text->font_i_button),
 416                                       font_italic_flag);
 417
 418         gnome_color_picker_set_i8 (GNOME_COLOR_PICKER (text->color_picker),
 419                                    RED (color), GREEN (color), BLUE (color),
 420                                    ALPHA (color));
 421
 422         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (text->left_button),
 423                                       (just == GTK_JUSTIFY_LEFT));
 424         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (text->center_button),
 425                                       (just == GTK_JUSTIFY_CENTER));
 426         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (text->right_button),
 427                                       (just == GTK_JUSTIFY_RIGHT));
 428 }