git.sur5r.net Git - glabels/blob - glabels1/src/prop_text.c

   1 /*
   2  *  (GLABELS) Label and Business Card Creation program for GNOME
   3  *
   4  *  prop_text.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 "prop_text.h"
  26
  27 #include "debug.h"
  28
  29 #define RED(x)   ( ((x)>>24) & 0xff )
  30 #define GREEN(x) ( ((x)>>16) & 0xff )
  31 #define BLUE(x)  ( ((x)>>8)  & 0xff )
  32 #define ALPHA(x) (  (x)      & 0xff )
  33
  34 /*===========================================*/
  35 /* Private types                             */
  36 /*===========================================*/
  37
  38 enum {
  39         CHANGED,
  40         LAST_SIGNAL
  41 };
  42
  43 typedef void (*glPropTextSignal) (GtkObject * object,
  44                                   gpointer data);
  45
  46 /*===========================================*/
  47 /* Private globals                           */
  48 /*===========================================*/
  49
  50 static GtkContainerClass *parent_class;
  51
  52 static gint prop_text_signals[LAST_SIGNAL] = { 0 };
  53
  54 /*===========================================*/
  55 /* Local function prototypes                 */
  56 /*===========================================*/
  57
  58 static void gl_prop_text_class_init (glPropTextClass * class);
  59 static void gl_prop_text_init (glPropText * text);
  60 static void gl_prop_text_destroy (GtkObject * object);
  61 static void gl_prop_text_construct (glPropText * text, gchar * label);
  62
  63 static void changed_cb (glPropText * text);
  64 static void just_toggled_cb (GtkToggleButton * togglebutton,
  65                              gpointer user_data);
  66 \f
  67 /*================================================================*/
  68 /* Boilerplate Object stuff.                                      */
  69 /*================================================================*/
  70 guint
  71 gl_prop_text_get_type (void)
  72 {
  73         static guint prop_text_type = 0;
  74
  75         if (!prop_text_type) {
  76                 GtkTypeInfo prop_text_info = {
  77                         "glPropText",
  78                         sizeof (glPropText),
  79                         sizeof (glPropTextClass),
  80                         (GtkClassInitFunc) gl_prop_text_class_init,
  81                         (GtkObjectInitFunc) gl_prop_text_init,
  82                         (GtkArgSetFunc) NULL,
  83                         (GtkArgGetFunc) NULL,
  84                 };
  85
  86                 prop_text_type =
  87                     gtk_type_unique (gtk_vbox_get_type (), &prop_text_info);
  88         }
  89
  90         return prop_text_type;
  91 }
  92
  93 static void
  94 gl_prop_text_class_init (glPropTextClass * class)
  95 {
  96         GtkObjectClass *object_class;
  97         GtkWidgetClass *widget_class;
  98
  99         object_class = (GtkObjectClass *) class;
 100         widget_class = (GtkWidgetClass *) class;
 101
 102         parent_class = gtk_type_class (gtk_vbox_get_type ());
 103
 104         object_class->destroy = gl_prop_text_destroy;
 105
 106         prop_text_signals[CHANGED] =
 107             gtk_signal_new ("changed", GTK_RUN_LAST, object_class->type,
 108                             GTK_SIGNAL_OFFSET (glPropTextClass, changed),
 109                             gtk_signal_default_marshaller, GTK_TYPE_NONE, 0);
 110         gtk_object_class_add_signals (object_class, prop_text_signals,
 111                                       LAST_SIGNAL);
 112
 113         class->changed = NULL;
 114 }
 115
 116 static void
 117 gl_prop_text_init (glPropText * text)
 118 {
 119         text->font_family_entry = NULL;
 120         text->font_size_spin = NULL;
 121         text->font_b_button = NULL;
 122         text->font_i_button = NULL;
 123
 124         text->color_picker = NULL;
 125
 126         text->left_button = NULL;
 127         text->right_button = NULL;
 128         text->center_button = NULL;
 129 }
 130
 131 static void
 132 gl_prop_text_destroy (GtkObject * object)
 133 {
 134         glPropText *text;
 135         glPropTextClass *class;
 136
 137         g_return_if_fail (object != NULL);
 138         g_return_if_fail (GL_IS_PROP_TEXT (object));
 139
 140         text = GL_PROP_TEXT (object);
 141         class = GL_PROP_TEXT_CLASS (GTK_OBJECT (text)->klass);
 142
 143         GTK_OBJECT_CLASS (parent_class)->destroy (object);
 144 }
 145
 146 GtkWidget *
 147 gl_prop_text_new (gchar * label)
 148 {
 149         glPropText *text;
 150
 151         text = gtk_type_new (gl_prop_text_get_type ());
 152
 153         gl_prop_text_construct (text, label);
 154
 155         return GTK_WIDGET (text);
 156 }
 157 \f
 158 /*============================================================*/
 159 /* Construct composite widget.                                */
 160 /*============================================================*/
 161 static void
 162 gl_prop_text_construct (glPropText * text,
 163                         gchar * label)
 164 {
 165         GtkWidget *wvbox, *wframe, *wtable, *wlabel, *whbox1, *wcombo;
 166         GList *family_names = NULL;
 167         GtkObject *adjust;
 168
 169         wvbox = GTK_WIDGET (text);
 170
 171         wframe = gtk_frame_new (label);
 172         gtk_box_pack_start (GTK_BOX (wvbox), wframe, FALSE, FALSE, 0);
 173
 174         wtable = gtk_table_new (3, 3, FALSE);
 175         gtk_container_set_border_width (GTK_CONTAINER (wtable), 10);
 176         gtk_table_set_row_spacings (GTK_TABLE (wtable), 5);
 177         gtk_table_set_col_spacings (GTK_TABLE (wtable), 5);
 178         gtk_container_add (GTK_CONTAINER (wframe), wtable);
 179
 180         /* Font label */
 181         wlabel = gtk_label_new (_("Font:"));
 182         gtk_misc_set_alignment (GTK_MISC (wlabel), 0, 0.5);
 183         gtk_label_set_justify (GTK_LABEL (wlabel), GTK_JUSTIFY_RIGHT);
 184         gtk_table_attach_defaults (GTK_TABLE (wtable), wlabel, 0, 1, 0, 1);
 185
 186         /* Pack these widgets into an inner hbox */
 187         whbox1 = gtk_hbox_new (FALSE, GNOME_PAD);
 188         gtk_table_attach_defaults (GTK_TABLE (wtable), whbox1, 1, 3, 0, 1);
 189
 190         /* Font family entry widget */
 191         wcombo = gtk_combo_new ();
 192         family_names = gnome_font_family_list ();
 193         gtk_combo_set_popdown_strings (GTK_COMBO (wcombo), family_names);
 194         gnome_font_family_list_free (family_names);
 195         text->font_family_entry = GTK_COMBO (wcombo)->entry;
 196         gtk_entry_set_editable (GTK_ENTRY (text->font_family_entry), FALSE);
 197         gtk_widget_set_usize (wcombo, 200, 0);
 198         gtk_box_pack_start (GTK_BOX (whbox1), wcombo, FALSE, FALSE, 0);
 199         gtk_signal_connect_object (GTK_OBJECT (text->font_family_entry),
 200                                    "changed", GTK_SIGNAL_FUNC (changed_cb),
 201                                    GTK_OBJECT (text));
 202
 203         /* Font size entry widget */
 204         adjust = gtk_adjustment_new (1.0, 1.0, 250.0, 1.0, 10.0, 10.0);
 205         text->font_size_spin =
 206             gtk_spin_button_new (GTK_ADJUSTMENT (adjust), 1.0, 0);
 207         gtk_box_pack_start (GTK_BOX (whbox1), text->font_size_spin, FALSE,
 208                             FALSE, 0);
 209         gtk_signal_connect_object (GTK_OBJECT (text->font_size_spin), "changed",
 210                                    GTK_SIGNAL_FUNC (changed_cb),
 211                                    GTK_OBJECT (text));
 212
 213         /* Font weight/italic button widgets */
 214         text->font_b_button = gtk_toggle_button_new ();
 215         gtk_container_add (GTK_CONTAINER (text->font_b_button),
 216                            gnome_stock_new_with_icon
 217                            (GNOME_STOCK_PIXMAP_TEXT_BOLD));
 218         gtk_box_pack_start (GTK_BOX (whbox1), text->font_b_button, FALSE, FALSE,
 219                             0);
 220         gtk_signal_connect_object (GTK_OBJECT (text->font_b_button), "toggled",
 221                                    GTK_SIGNAL_FUNC (changed_cb),
 222                                    GTK_OBJECT (text));
 223         text->font_i_button = gtk_toggle_button_new ();
 224         gtk_container_add (GTK_CONTAINER (text->font_i_button),
 225                            gnome_stock_new_with_icon
 226                            (GNOME_STOCK_PIXMAP_TEXT_ITALIC));
 227         gtk_box_pack_start (GTK_BOX (whbox1), text->font_i_button, FALSE, FALSE,
 228                             0);
 229         gtk_signal_connect_object (GTK_OBJECT (text->font_i_button), "toggled",
 230                                    GTK_SIGNAL_FUNC (changed_cb),
 231                                    GTK_OBJECT (text));
 232
 233         /* Text Color Label */
 234         wlabel = gtk_label_new (_("Color:"));
 235         gtk_misc_set_alignment (GTK_MISC (wlabel), 0, 0.5);
 236         gtk_label_set_justify (GTK_LABEL (wlabel), GTK_JUSTIFY_RIGHT);
 237         gtk_table_attach_defaults (GTK_TABLE (wtable), wlabel, 0, 1, 1, 2);
 238
 239         /* Text Color picker widget */
 240         text->color_picker = gnome_color_picker_new ();
 241         gtk_signal_connect_object (GTK_OBJECT (text->color_picker), "color_set",
 242                                    GTK_SIGNAL_FUNC (changed_cb),
 243                                    GTK_OBJECT (text));
 244         gtk_table_attach_defaults (GTK_TABLE (wtable), text->color_picker, 1, 2,
 245                                    1, 2);
 246
 247         /* Alignment label */
 248         wlabel = gtk_label_new (_("Alignment:"));
 249         gtk_misc_set_alignment (GTK_MISC (wlabel), 0, 0.5);
 250         gtk_label_set_justify (GTK_LABEL (wlabel), GTK_JUSTIFY_RIGHT);
 251         gtk_table_attach_defaults (GTK_TABLE (wtable), wlabel, 0, 1, 2, 3);
 252
 253         /* Pack these widgets into an inner hbox */
 254         whbox1 = gtk_hbox_new (FALSE, GNOME_PAD);
 255         gtk_table_attach_defaults (GTK_TABLE (wtable), whbox1, 1, 2, 2, 3);
 256
 257         /* Justification entry widget */
 258         text->left_button = gtk_toggle_button_new ();
 259         gtk_container_add (GTK_CONTAINER (text->left_button),
 260                            gnome_stock_new_with_icon
 261                            (GNOME_STOCK_PIXMAP_ALIGN_LEFT));
 262         gtk_box_pack_start (GTK_BOX (whbox1), text->left_button, FALSE, FALSE,
 263                             0);
 264         text->center_button = gtk_toggle_button_new ();
 265         gtk_container_add (GTK_CONTAINER (text->center_button),
 266                            gnome_stock_new_with_icon
 267                            (GNOME_STOCK_PIXMAP_ALIGN_CENTER));
 268         gtk_box_pack_start (GTK_BOX (whbox1), text->center_button, FALSE, FALSE,
 269                             0);
 270         text->right_button = gtk_toggle_button_new ();
 271         gtk_container_add (GTK_CONTAINER (text->right_button),
 272                            gnome_stock_new_with_icon
 273                            (GNOME_STOCK_PIXMAP_ALIGN_RIGHT));
 274         gtk_box_pack_start (GTK_BOX (whbox1), text->right_button, FALSE, FALSE,
 275                             0);
 276
 277         /* Now connect a callback that makes these toggles mutually exclusive */
 278         gtk_signal_connect (GTK_OBJECT (text->left_button), "toggled",
 279                             GTK_SIGNAL_FUNC (just_toggled_cb), text);
 280         gtk_signal_connect (GTK_OBJECT (text->center_button), "toggled",
 281                             GTK_SIGNAL_FUNC (just_toggled_cb), text);
 282         gtk_signal_connect (GTK_OBJECT (text->right_button), "toggled",
 283                             GTK_SIGNAL_FUNC (just_toggled_cb), text);
 284
 285 }
 286
 287 /*--------------------------------------------------------------------------*/
 288 /* PRIVATE.  Callback for when any control in the widget has changed.       */
 289 /*--------------------------------------------------------------------------*/
 290 static void
 291 changed_cb (glPropText * text)
 292 {
 293         /* Emit our "changed" signal */
 294         gtk_signal_emit (GTK_OBJECT (text), prop_text_signals[CHANGED]);
 295 }
 296 \f
 297 /*--------------------------------------------------------------------------*/
 298 /* PRIVATE.  Justify toggle button callback.                                */
 299 /*--------------------------------------------------------------------------*/
 300 static void
 301 just_toggled_cb (GtkToggleButton * togglebutton,
 302                  gpointer user_data)
 303 {
 304         glPropText *text = GL_PROP_TEXT (user_data);
 305
 306         if (gtk_toggle_button_get_active (togglebutton)) {
 307
 308                 if (GTK_WIDGET (togglebutton) == GTK_WIDGET (text->left_button)) {
 309                         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 310                                                       (text->center_button),
 311                                                       FALSE);
 312                         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 313                                                       (text->right_button),
 314                                                       FALSE);
 315                 } else if (GTK_WIDGET (togglebutton) ==
 316                            GTK_WIDGET (text->center_button)) {
 317                         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 318                                                       (text->left_button),
 319                                                       FALSE);
 320                         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 321                                                       (text->right_button),
 322                                                       FALSE);
 323                 } else if (GTK_WIDGET (togglebutton) ==
 324                            GTK_WIDGET (text->right_button)) {
 325                         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 326                                                       (text->left_button),
 327                                                       FALSE);
 328                         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
 329                                                       (text->center_button),
 330                                                       FALSE);
 331                 }
 332
 333         }
 334
 335         /* Emit our "changed" signal */
 336         gtk_signal_emit (GTK_OBJECT (text), prop_text_signals[CHANGED]);
 337 }
 338 \f
 339 /*====================================================================*/
 340 /* query values from controls.                                        */
 341 /*====================================================================*/
 342 void
 343 gl_prop_text_get_params (glPropText * text,
 344                          gchar ** font_family,
 345                          gdouble * font_size,
 346                          GnomeFontWeight * font_weight,
 347                          gboolean * font_italic_flag,
 348                          guint * color,
 349                          GtkJustification * just)
 350 {
 351         guint8 r, g, b, a;
 352
 353         /* ------ Get updated font information ------ */
 354         *font_family =
 355             gtk_editable_get_chars (GTK_EDITABLE (text->font_family_entry), 0,
 356                                     -1);
 357         *font_size =
 358             gtk_spin_button_get_value_as_float (GTK_SPIN_BUTTON
 359                                                 (text->font_size_spin));
 360         if (gtk_toggle_button_get_active
 361             (GTK_TOGGLE_BUTTON (text->font_b_button))) {
 362                 *font_weight = GNOME_FONT_BOLD;
 363         } else {
 364                 *font_weight = GNOME_FONT_BOOK;
 365         }
 366         *font_italic_flag =
 367             gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON
 368                                           (text->font_i_button));
 369
 370         /* ------ Get updated color ------ */
 371         gnome_color_picker_get_i8 (GNOME_COLOR_PICKER (text->color_picker),
 372                                    &r, &g, &b, &a);
 373         *color = GNOME_CANVAS_COLOR_A (r, g, b, a);
 374
 375         /* ------- Get updated justification ------ */
 376         if (gtk_toggle_button_get_active
 377             (GTK_TOGGLE_BUTTON (text->left_button))) {
 378                 *just = GTK_JUSTIFY_LEFT;
 379         } else
 380             if (gtk_toggle_button_get_active
 381                 (GTK_TOGGLE_BUTTON (text->right_button))) {
 382                 *just = GTK_JUSTIFY_RIGHT;
 383         } else
 384             if (gtk_toggle_button_get_active
 385                 (GTK_TOGGLE_BUTTON (text->center_button))) {
 386                 *just = GTK_JUSTIFY_CENTER;
 387         } else {
 388                 *just = GTK_JUSTIFY_LEFT;       /* Should not happen. */
 389         }
 390
 391 }
 392
 393 /*====================================================================*/
 394 /* fill in values and ranges for controls.                            */
 395 /*====================================================================*/
 396 void
 397 gl_prop_text_set_params (glPropText * text,
 398                          gchar * font_family,
 399                          gdouble font_size,
 400                          GnomeFontWeight font_weight,
 401                          gboolean font_italic_flag,
 402                          guint color,
 403                          GtkJustification just)
 404 {
 405         gtk_entry_set_text (GTK_ENTRY (text->font_family_entry), font_family);
 406
 407         gtk_spin_button_set_value (GTK_SPIN_BUTTON (text->font_size_spin),
 408                                    font_size);
 409
 410         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (text->font_b_button),
 411                                       (font_weight == GNOME_FONT_BOLD));
 412
 413         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (text->font_i_button),
 414                                       font_italic_flag);
 415
 416         gnome_color_picker_set_i8 (GNOME_COLOR_PICKER (text->color_picker),
 417                                    RED (color), GREEN (color), BLUE (color),
 418                                    ALPHA (color));
 419
 420         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (text->left_button),
 421                                       (just == GTK_JUSTIFY_LEFT));
 422         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (text->center_button),
 423                                       (just == GTK_JUSTIFY_CENTER));
 424         gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (text->right_button),
 425                                       (just == GTK_JUSTIFY_RIGHT));
 426 }